/* roulang page: index */
:root {
            --primary: #1E5AAB;
            --primary-light: #2B7BD4;
            --primary-dark: #154080;
            --secondary: #2C3E50;
            --secondary-dark: #1A252F;
            --accent: #FF6B35;
            --accent-dark: #E55A2B;
            --bg-light: #F8FBFD;
            --bg-white: #FFFFFF;
            --bg-gray: #F0F4F8;
            --text-dark: #1A1A2E;
            --text-body: #3A3A4A;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5E7EB;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing: 24px;
            --spacing-md: 32px;
            --spacing-lg: 48px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', serif;
            --max-width: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
            font-size: 16px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--text-dark);
            line-height: 1.35;
            margin-bottom: 0.5em;
        }

        h1 {
            font-size: 32px;
            font-weight: 700;
        }
        h2 {
            font-size: 24px;
            font-weight: 600;
        }
        h3 {
            font-size: 20px;
            font-weight: 500;
        }
        h4 {
            font-size: 18px;
            font-weight: 500;
        }

        p {
            margin-bottom: 1em;
            line-height: 1.8;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        /* Header & Navigation */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 32px;
            margin: 0;
            padding: 0;
        }

        .nav-list li {
            margin: 0;
        }

        .nav-list a {
            font-family: var(--font-heading);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }

        .nav-list a:hover {
            color: var(--primary);
        }

        .nav-list a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 20px !important;
            border-radius: var(--radius);
            font-weight: 600 !important;
            transition: background var(--transition), transform var(--transition) !important;
        }

        .nav-cta:hover {
            background: var(--accent-dark) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }

        .nav-cta::after {
            display: none !important;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--text-dark);
            font-size: 24px;
            line-height: 1;
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(160deg, #E8F2FB 0%, #F0F6FC 30%, #F8FBFD 60%, #E8F0F8 100%);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(30, 90, 171, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: -0.3px;
        }

        .hero-content h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-heading);
            font-size: 15px;
            font-weight: 600;
            padding: 12px 24px;
            border-radius: var(--radius);
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.3);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
        }

        .btn-secondary {
            background: var(--bg-white);
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-dark);
            border: 1px solid var(--border);
        }

        .btn-outline-light:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--bg-light);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: var(--radius-sm);
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
            border-radius: var(--radius-md);
        }

        .hero-visual {
            display: flex;
            flex-direction: column;
            gap: var(--spacing);
            align-items: center;
        }

        .hero-report-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: var(--spacing);
            width: 100%;
            max-width: 420px;
            position: relative;
        }

        .hero-report-cover {
            width: 100%;
            aspect-ratio: 16/10;
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #1E5AAB 0%, #2B7BD4 50%, #1A4A8A 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            text-align: center;
            padding: 20px;
            position: relative;
        }

        .hero-report-cover img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.55;
        }

        .hero-report-cover .cover-text {
            position: relative;
            z-index: 1;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .hero-report-toc {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }

        .hero-report-toc li {
            font-size: 14px;
            color: var(--text-body);
            padding: 6px 0;
            border-bottom: 1px dashed var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-report-toc li::before {
            content: '▸';
            color: var(--primary);
            font-size: 12px;
            flex-shrink: 0;
        }

        .hero-report-toc li:last-child {
            border-bottom: none;
        }

        .hero-metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-sm);
            width: 100%;
            max-width: 420px;
        }

        .metric-card {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(10px);
            border-radius: var(--radius);
            padding: 18px 14px;
            text-align: center;
            border: 1px solid rgba(30, 90, 171, 0.12);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .metric-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            border-color: rgba(30, 90, 171, 0.25);
        }

        .metric-value {
            font-family: var(--font-heading);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 4px;
        }

        .metric-value .unit {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-muted);
        }

        .metric-label {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.4;
            font-family: var(--font-heading);
        }

        .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 3px;
            font-size: 11px;
            color: #10B981;
            font-weight: 600;
            margin-top: 4px;
        }

        /* Section Styles */
        .section {
            padding: var(--spacing-xl) 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-dark {
            background: var(--secondary);
            color: #fff;
        }

        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-tag {
            display: inline-block;
            font-family: var(--font-heading);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(30, 90, 171, 0.08);
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* Brand Intro */
        .brand-intro {
            background: var(--bg-white);
            border-left: 4px solid var(--primary);
            padding: var(--spacing-md) var(--spacing-lg);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: var(--spacing-lg) 0;
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .brand-intro::before {
            content: '"';
            position: absolute;
            top: 12px;
            left: 20px;
            font-size: 60px;
            color: rgba(30, 90, 171, 0.08);
            font-family: Georgia, serif;
            line-height: 1;
            pointer-events: none;
        }

        .brand-intro p {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-body);
            margin-bottom: 0;
            position: relative;
            z-index: 1;
        }

        /* Service Matrix */
        .service-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing);
            align-items: start;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: var(--spacing);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
            cursor: pointer;
        }

        .service-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .service-card.featured {
            grid-row: span 2;
            border-color: rgba(30, 90, 171, 0.2);
            background: linear-gradient(180deg, #fff 0%, #F8FBFD 100%);
        }

        .service-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 16px;
            background: var(--bg-gray);
        }

        .service-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .service-card .card-link {
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }

        .service-card .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        .service-card .card-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .service-card:hover .card-link i {
            transform: translateX(3px);
        }

        /* News Section */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            gap: var(--spacing);
            padding: var(--spacing) 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
            border-radius: var(--radius-sm);
            padding-left: var(--spacing-sm);
            padding-right: var(--spacing-sm);
        }

        .news-item:hover {
            background: var(--bg-light);
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-date {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-family: var(--font-heading);
            line-height: 1.1;
        }

        .news-date .day {
            font-size: 22px;
            font-weight: 700;
        }

        .news-date .month {
            font-size: 11px;
            font-weight: 500;
            text-transform: uppercase;
        }

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-body h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-dark);
            line-height: 1.4;
        }

        .news-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-body .read-more {
            font-family: var(--font-heading);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-body .read-more:hover {
            text-decoration: underline;
            color: var(--primary-dark);
        }

        /* Platform Guarantee */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing);
        }

        .guarantee-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: var(--spacing);
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .guarantee-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }

        .guarantee-icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 14px;
            background: rgba(30, 90, 171, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
        }

        .guarantee-card h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-dark);
        }

        .guarantee-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 0;
        }

        /* Comparison */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: stretch;
        }

        .comparison-col {
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            position: relative;
        }

        .comparison-col.traditional {
            background: #F3F4F6;
            border: 1px solid #E5E7EB;
        }

        .comparison-col.wanbo {
            background: linear-gradient(180deg, #F0F6FC 0%, #E8F2FB 100%);
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-md);
        }

        .comparison-col h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            text-align: center;
        }

        .comparison-col.wanbo h3 {
            color: var(--primary);
        }

        .comparison-badge {
            position: absolute;
            top: -14px;
            right: 24px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-heading);
            font-size: 12px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }

        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .comparison-list li {
            padding: 10px 0;
            border-bottom: 1px dashed rgba(0, 0, 0, 0.08);
            font-size: 15px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.6;
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-list li i {
            flex-shrink: 0;
            margin-top: 3px;
            font-size: 14px;
        }

        .comparison-col.traditional .comparison-list li i {
            color: #9CA3AF;
        }

        .comparison-col.wanbo .comparison-list li i {
            color: #10B981;
        }

        .comparison-chart {
            margin-top: 20px;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: var(--spacing);
            text-align: center;
            border: 1px dashed var(--border);
        }

        .comparison-chart .chart-placeholder {
            height: 120px;
            display: flex;
            align-items: flex-end;
            justify-content: center;
            gap: 20px;
            padding: 16px 0;
        }

        .chart-bar {
            width: 40px;
            border-radius: 6px 6px 0 0;
            transition: height var(--transition-slow);
            position: relative;
        }

        .chart-bar.trad {
            background: #D1D5DB;
            height: 50px;
        }

        .chart-bar.wanbo {
            background: var(--primary);
            height: 100px;
        }

        .chart-bar-label {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 6px;
            font-family: var(--font-heading);
        }

        /* Selling Points */
        .selling-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing);
        }

        .selling-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg) var(--spacing);
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .selling-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary);
            border-radius: 4px 4px 0 0;
        }

        .selling-card:nth-child(2)::before {
            background: var(--accent);
        }

        .selling-card:nth-child(3)::before {
            background: #10B981;
        }

        .selling-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .selling-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }

        .selling-card:nth-child(1) .selling-icon {
            background: rgba(30, 90, 171, 0.1);
            color: var(--primary);
        }

        .selling-card:nth-child(2) .selling-icon {
            background: rgba(255, 107, 53, 0.1);
            color: var(--accent);
        }

        .selling-card:nth-child(3) .selling-icon {
            background: rgba(16, 185, 129, 0.1);
            color: #10B981;
        }

        .selling-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .selling-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Collection Directory */
        .collection-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing);
        }

        .collection-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }

        .collection-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .collection-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--bg-gray);
        }

        .collection-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .collection-card:hover .collection-card-img img {
            transform: scale(1.04);
        }

        .collection-card-body {
            padding: var(--spacing);
        }

        .collection-card-body h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-dark);
        }

        .collection-card-body .entry-count {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .collection-card-body .collection-cta {
            font-family: var(--font-heading);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Milestone */
        .milestone-timeline {
            display: flex;
            justify-content: space-between;
            position: relative;
            padding: var(--spacing-lg) 0;
        }

        .milestone-timeline::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 5%;
            right: 5%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 50%, var(--primary) 100%);
            border-radius: 2px;
            transform: translateY(-50%);
        }

        .milestone-node {
            text-align: center;
            position: relative;
            z-index: 1;
            flex: 1;
        }

        .milestone-dot {
            width: 16px;
            height: 16px;
            background: var(--primary);
            border-radius: 50%;
            margin: 0 auto 14px;
            border: 3px solid #fff;
            box-shadow: 0 0 0 4px rgba(30, 90, 171, 0.2);
            position: relative;
        }

        .milestone-node:nth-child(even) .milestone-dot {
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2);
        }

        .milestone-year {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .milestone-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
            max-width: 140px;
            margin: 0 auto;
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            margin-bottom: 10px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(30, 90, 171, 0.2);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-align: left;
            line-height: 1.5;
            transition: color var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-arrow {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(30, 90, 171, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--primary);
            transition: transform var(--transition);
        }

        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer-inner {
            background: rgba(248, 251, 253, 0.6);
        }

        /* CTA Form */
        .cta-form-section {
            background: var(--secondary);
            padding: var(--spacing-xl) 0;
            position: relative;
            overflow: hidden;
        }

        .cta-form-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cta-form-info h2 {
            color: #fff;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-form-info p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .cta-form-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-lg);
        }

        .cta-form-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-dark);
            text-align: center;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-family: var(--font-body);
            transition: border-color var(--transition), box-shadow var(--transition);
            background: var(--bg-light);
            color: var(--text-dark);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.1);
            background: #fff;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }

        .form-submit {
            width: 100%;
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 14px;
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius);
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }

        .form-submit:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
        }

        .form-privacy {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 12px;
            line-height: 1.5;
        }

        /* Deep Content */
        .deep-content {
            padding: var(--spacing-lg) 0;
        }

        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .deep-content-text h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-dark);
        }

        .deep-content-text p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: 12px;
        }

        .deep-content-visual {
            background: var(--bg-gray);
            border-radius: var(--radius-md);
            aspect-ratio: 4/3;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .deep-content-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .deep-content-full {
            padding: var(--spacing-lg) 0;
        }

        .deep-content-full h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-dark);
        }

        .deep-content-full p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .data-highlight-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing);
            margin: var(--spacing) 0;
        }

        .data-highlight-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: var(--spacing);
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .data-highlight-item .big-num {
            font-family: var(--font-heading);
            font-size: 42px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }

        .data-highlight-item .num-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* Footer */
        .site-footer {
            background: #1A1F2E;
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-lg) 0;
            font-size: 14px;
        }

        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            text-align: center;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 16px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-info {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 2;
        }

        .footer-info span {
            margin: 0 6px;
        }

        .footer-divider {
            width: 40px;
            height: 2px;
            background: rgba(255, 255, 255, 0.2);
            margin: 16px auto;
            border-radius: 1px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .hero-metrics {
                grid-template-columns: repeat(2, 1fr);
                max-width: 100%;
            }
            .service-grid {
                grid-template-columns: 1fr 1fr;
            }
            .service-card.featured {
                grid-row: span 1;
                grid-column: span 2;
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }
            .selling-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .selling-grid .selling-card:last-child {
                grid-column: span 2;
                max-width: 400px;
                justify-self: center;
            }
            .collection-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-form-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }
            .milestone-timeline {
                flex-wrap: wrap;
                gap: var(--spacing);
            }
            .milestone-timeline::before {
                display: none;
            }
            .milestone-node {
                flex: 0 0 calc(33.33% - 16px);
            }
            .data-highlight-row {
                grid-template-columns: repeat(2, 1fr);
            }
            h1 {
                font-size: 28px;
            }
            h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: var(--spacing);
                gap: 0;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border-light);
                z-index: 999;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li {
                width: 100%;
            }
            .nav-list a {
                display: block;
                padding: 12px 0;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-list a:last-child {
                border-bottom: none;
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-list a.active {
                background: rgba(30, 90, 171, 0.04);
                border-radius: var(--radius-sm);
                padding-left: 12px;
            }
            .mobile-toggle {
                display: block;
            }
            .hero-metrics {
                grid-template-columns: repeat(2, 1fr);
            }
            .metric-value {
                font-size: 28px;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .service-card.featured {
                grid-column: span 1;
            }
            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
            }
            .selling-grid {
                grid-template-columns: 1fr;
            }
            .selling-grid .selling-card:last-child {
                grid-column: span 1;
                max-width: 100%;
            }
            .collection-grid {
                grid-template-columns: 1fr;
            }
            .milestone-node {
                flex: 0 0 calc(50% - 12px);
            }
            .data-highlight-row {
                grid-template-columns: 1fr;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
            h1 {
                font-size: 26px;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .hero-report-card {
                max-width: 100%;
            }
            .news-item {
                flex-direction: column;
                gap: 10px;
            }
            .news-date {
                width: 100%;
                height: auto;
                flex-direction: row;
                gap: 8px;
                padding: 8px 14px;
                border-radius: var(--radius-sm);
                font-size: 14px;
            }
            .news-date .day {
                font-size: 16px;
            }
            .news-date .month {
                font-size: 12px;
            }
            .comparison-col {
                padding: var(--spacing);
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .hero-metrics {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .metric-card {
                padding: 12px 8px;
            }
            .metric-value {
                font-size: 24px;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .milestone-node {
                flex: 0 0 100%;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .container {
                padding: 0 var(--spacing-sm);
            }
            .header-inner {
                padding: 0 var(--spacing-sm);
            }
            .section {
                padding: var(--spacing-md) 0;
            }
            .brand-intro {
                padding: var(--spacing) var(--spacing-sm);
            }
            .cta-form-card {
                padding: var(--spacing);
            }
            .footer-links {
                gap: 12px;
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1E5AAB;
            --primary-light: #2B7BD4;
            --primary-dark: #154080;
            --secondary: #2C3E50;
            --secondary-dark: #1A252F;
            --accent: #FF6B35;
            --accent-dark: #E55A2B;
            --bg-light: #F8FBFD;
            --bg-white: #FFFFFF;
            --bg-gray: #F0F4F8;
            --text-dark: #1A1A2E;
            --text-body: #3A3A4A;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5E7EB;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing: 24px;
            --spacing-md: 32px;
            --spacing-lg: 48px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', serif;
            --max-width: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
            font-size: 16px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--text-dark);
            margin-top: 0;
            line-height: 1.35;
        }

        h1 {
            font-size: 32px;
            font-weight: 700;
        }
        h2 {
            font-size: 24px;
            font-weight: 600;
        }
        h3 {
            font-size: 20px;
            font-weight: 500;
        }
        h4 {
            font-size: 18px;
            font-weight: 500;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        /* Header & Navigation */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            margin: 0;
            padding: 0;
        }

        .nav-list li {
            margin: 0;
        }

        .nav-list a {
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }

        .nav-list a:hover {
            color: var(--primary);
        }

        .nav-list a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 20px !important;
            border-radius: var(--radius);
            font-weight: 600 !important;
            transition: background var(--transition), transform var(--transition) !important;
        }

        .nav-cta:hover {
            background: var(--accent-dark) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }

        .nav-cta::after {
            display: none !important;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-dark);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .hamburger:hover {
            background: var(--bg-gray);
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(21, 64, 128, 0.85) 0%, rgba(30, 90, 171, 0.75) 35%, rgba(44, 62, 80, 0.8) 70%, rgba(26, 37, 47, 0.88) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: var(--spacing-xl) var(--spacing);
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-heading);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 20px;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: var(--spacing-sm);
            animation: pulse-badge 2.5s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.5);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(255, 107, 53, 0);
            }
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 40px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
            line-height: 1.25;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
        }

        .hero-subtitle {
            font-family: var(--font-body);
            font-size: 18px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: var(--spacing-md);
            line-height: 1.7;
            max-width: 650px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-search {
            display: flex;
            gap: 10px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .hero-search input {
            flex: 1;
            min-width: 220px;
            padding: 14px 18px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.95);
            font-size: 15px;
            color: var(--text-dark);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .hero-search input:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px rgba(30, 90, 171, 0.15);
        }

        .hero-search .btn-search {
            padding: 14px 28px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius);
            font-weight: 600;
            font-family: var(--font-heading);
            font-size: 15px;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
        }

        .hero-search .btn-search:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
        }

        /* Stats strip */
        .stats-strip {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: var(--spacing) 0;
        }

        .stats-strip .stats-row {
            display: flex;
            justify-content: center;
            gap: var(--spacing-xl);
            flex-wrap: wrap;
            text-align: center;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-family: var(--font-heading);
        }

        .stat-icon {
            color: var(--accent);
            font-size: 12px;
            margin-left: 2px;
        }

        /* Main Content Layout */
        .main-content {
            padding: var(--spacing-xl) 0;
            background: var(--bg-light);
        }

        .content-grid {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: var(--spacing-lg);
            align-items: start;
        }

        /* Timeline Section */
        .timeline-section {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .timeline-section .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }

        .timeline-section .section-header h2 {
            margin: 0;
            font-size: 22px;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .timeline-section .section-header h2 i {
            color: var(--accent);
            font-size: 20px;
        }

        .timeline-filter {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .timeline-filter .filter-tag {
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-family: var(--font-heading);
            font-weight: 500;
            cursor: pointer;
            border: 1px solid var(--border);
            background: var(--bg-white);
            color: var(--text-muted);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .timeline-filter .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .timeline-filter .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .timeline {
            position: relative;
            padding-left: 40px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 15px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--primary) 0%, var(--primary-light) 30%, var(--border) 70%, var(--border-light) 100%);
            border-radius: 1px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: var(--spacing-md);
            padding-bottom: var(--spacing-sm);
        }

        .timeline-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -40px;
            top: 6px;
            width: 32px;
            height: 32px;
            background: var(--bg-white);
            border: 3px solid var(--primary);
            border-radius: 50%;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            color: var(--primary);
            transition: all var(--transition);
        }

        .timeline-item:hover .timeline-dot {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 0 0 8px rgba(30, 90, 171, 0.12);
        }

        .timeline-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: var(--spacing);
            transition: box-shadow var(--transition), transform var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .timeline-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .timeline-card .tl-date {
            display: inline-block;
            font-family: var(--font-heading);
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(30, 90, 171, 0.08);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .timeline-card .tl-date.featured {
            background: var(--accent);
            color: #fff;
        }

        .timeline-card h3 {
            font-size: 18px;
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .timeline-card h3 a {
            color: var(--text-dark);
            transition: color var(--transition);
        }

        .timeline-card h3 a:hover {
            color: var(--primary);
        }

        .timeline-card .tl-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .timeline-card .tl-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 12px;
            color: var(--text-light);
            flex-wrap: wrap;
        }

        .timeline-card .tl-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .timeline-card .tl-readmore {
            display: inline-block;
            font-family: var(--font-heading);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 8px;
            transition: color var(--transition);
        }

        .timeline-card .tl-readmore:hover {
            color: var(--primary-light);
            text-decoration: underline;
        }

        .timeline-card .tl-readmore i {
            font-size: 11px;
            margin-left: 2px;
            transition: transform var(--transition);
        }

        .timeline-card .tl-readmore:hover i {
            transform: translateX(3px);
        }

        .timeline-card.has-image {
            display: grid;
            grid-template-columns: 140px 1fr;
            gap: var(--spacing);
            align-items: start;
        }

        .timeline-card.has-image .tl-image {
            width: 140px;
            height: 100px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }

        .timeline-card.has-image .tl-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .timeline-card.has-image:hover .tl-image img {
            transform: scale(1.05);
        }

        /* Load More */
        .load-more-wrap {
            text-align: center;
            margin-top: var(--spacing-md);
            padding-top: var(--spacing);
        }

        .btn-load-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: var(--bg-white);
            border: 2px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius);
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition);
        }

        .btn-load-more:hover {
            background: var(--primary);
            color: #fff;
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing);
        }

        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: var(--spacing);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .sidebar-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
            padding-bottom: var(--spacing-xs);
            border-bottom: 2px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i {
            color: var(--accent);
            font-size: 15px;
        }

        .hot-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .hot-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            transition: padding var(--transition);
        }

        .hot-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .hot-list li:first-child {
            padding-top: 0;
        }

        .hot-list li a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-body);
            font-size: 14px;
            line-height: 1.5;
            transition: color var(--transition);
        }

        .hot-list li a:hover {
            color: var(--primary);
        }

        .hot-list .hot-rank {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-gray);
            font-family: var(--font-heading);
            font-size: 12px;
            font-weight: 700;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .hot-list li:nth-child(1) .hot-rank {
            background: #FF6B35;
            color: #fff;
        }
        .hot-list li:nth-child(2) .hot-rank {
            background: #FF8C5A;
            color: #fff;
        }
        .hot-list li:nth-child(3) .hot-rank {
            background: #FFAA80;
            color: #fff;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud .tag {
            padding: 5px 12px;
            background: var(--bg-gray);
            border-radius: 16px;
            font-size: 12px;
            font-family: var(--font-heading);
            color: var(--text-muted);
            transition: all var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
        }

        .tag-cloud .tag:hover {
            background: rgba(30, 90, 171, 0.08);
            color: var(--primary);
            border-color: var(--primary);
        }

        .tag-cloud .tag.hot {
            background: rgba(255, 107, 53, 0.1);
            color: var(--accent);
            font-weight: 600;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            color: #fff;
            text-align: center;
            padding: var(--spacing);
            border-radius: var(--radius-md);
        }

        .sidebar-cta h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 8px;
        }

        .sidebar-cta p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: var(--spacing-sm);
            line-height: 1.6;
        }

        .sidebar-cta .btn-sidebar {
            display: inline-block;
            padding: 10px 22px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius);
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 14px;
            transition: background var(--transition), transform var(--transition);
        }

        .sidebar-cta .btn-sidebar:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
        }

        /* FAQ Section */
        .faq-section {
            padding: var(--spacing-xl) 0;
            background: var(--bg-white);
        }

        .faq-section .section-title {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }

        .faq-section .section-title h2 {
            font-size: 26px;
            margin-bottom: 8px;
        }

        .faq-section .section-title p {
            color: var(--text-muted);
            font-size: 15px;
        }

        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            margin-bottom: var(--spacing-sm);
            background: var(--bg-white);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-item.active {
            box-shadow: var(--shadow);
            border-color: var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-sm) var(--spacing);
            cursor: pointer;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 15px;
            color: var(--text-dark);
            user-select: none;
            transition: color var(--transition);
            gap: var(--spacing-sm);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition-slow);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 var(--spacing);
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 var(--spacing) var(--spacing-sm);
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* CTA Section */
        .cta-section {
            padding: var(--spacing-xl) 0;
            background: var(--secondary);
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 26px;
            margin-bottom: 8px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            margin-bottom: var(--spacing);
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 13px 16px;
            border: 2px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.95);
            font-size: 14px;
            color: var(--text-dark);
            outline: none;
            transition: border-color var(--transition);
        }

        .cta-form input:focus {
            border-color: var(--accent);
        }

        .cta-form .btn-submit {
            padding: 13px 28px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius);
            font-weight: 600;
            font-family: var(--font-heading);
            font-size: 15px;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
        }

        .cta-form .btn-submit:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
        }

        .cta-privacy {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: var(--spacing-xs);
        }

        /* Footer */
        .site-footer {
            background: #1A1A2E;
            color: #9CA3AF;
            padding: var(--spacing-lg) 0;
            text-align: center;
            font-size: 14px;
        }

        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            margin-bottom: var(--spacing-sm);
        }

        .footer-links a {
            color: #9CA3AF;
            font-size: 13px;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-divider {
            width: 60px;
            height: 1px;
            background: rgba(255, 255, 255, 0.2);
            margin: var(--spacing-sm) auto;
        }

        .footer-info {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            align-items: center;
            font-size: 12px;
            color: #7A7A8A;
        }

        .footer-info a {
            color: #9CA3AF;
            transition: color var(--transition);
        }

        .footer-info a:hover {
            color: #fff;
        }

        .footer-info span {
            color: #5A5A6A;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }
            .sidebar {
                flex-direction: row;
                flex-wrap: wrap;
                gap: var(--spacing-sm);
            }
            .sidebar-card {
                flex: 1 1 280px;
                min-width: 240px;
            }
            .sidebar-cta {
                flex: 1 1 100%;
            }
            .hero-title {
                font-size: 32px;
            }
            .timeline {
                padding-left: 32px;
            }
            .timeline::before {
                left: 12px;
            }
            .timeline-dot {
                left: -32px;
                width: 26px;
                height: 26px;
                font-size: 10px;
            }
            .timeline-card.has-image {
                grid-template-columns: 110px 1fr;
                gap: var(--spacing-sm);
            }
            .timeline-card.has-image .tl-image {
                width: 110px;
                height: 80px;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: var(--spacing);
                gap: 0;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border-light);
                z-index: 999;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li {
                width: 100%;
            }
            .nav-list a {
                display: block;
                padding: 12px 0;
                border-bottom: 1px solid var(--border-light);
                font-size: 15px;
            }
            .nav-list a:last-child {
                border-bottom: none;
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-list a.active {
                background: rgba(30, 90, 171, 0.04);
                border-radius: var(--radius-sm);
                padding-left: 12px;
            }
            .nav-cta {
                text-align: center;
                margin-top: 8px;
                padding: 12px 20px !important;
            }
            .hamburger {
                display: block;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-section {
                min-height: 340px;
            }
            .timeline {
                padding-left: 24px;
            }
            .timeline::before {
                left: 8px;
            }
            .timeline-dot {
                left: -24px;
                width: 20px;
                height: 20px;
                font-size: 9px;
                border-width: 2px;
            }
            .timeline-card.has-image {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .timeline-card.has-image .tl-image {
                width: 100%;
                height: 160px;
            }
            .timeline-card {
                padding: var(--spacing-sm);
            }
            .timeline-card h3 {
                font-size: 16px;
            }
            .stats-strip .stats-row {
                gap: var(--spacing);
            }
            .stat-number {
                font-size: 28px;
            }
            .sidebar {
                flex-direction: column;
            }
            .content-grid {
                gap: var(--spacing-sm);
            }
            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-form input {
                min-width: auto;
            }
            .faq-question {
                font-size: 14px;
                padding: var(--spacing-sm);
            }
            .faq-answer {
                padding: 0 var(--spacing-sm);
            }
            .faq-item.active .faq-answer {
                padding: 0 var(--spacing-sm) var(--spacing-sm);
            }
            .hero-search {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-search input {
                min-width: auto;
            }
            .timeline-filter {
                gap: 6px;
            }
            .timeline-filter .filter-tag {
                font-size: 11px;
                padding: 5px 10px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 22px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .hero-section {
                min-height: 280px;
            }
            .hero-badge {
                font-size: 11px;
                padding: 4px 12px;
            }
            .timeline-section {
                padding: var(--spacing-sm);
            }
            .timeline-section .section-header h2 {
                font-size: 18px;
            }
            .stats-strip .stats-row {
                gap: var(--spacing-sm);
            }
            .stat-number {
                font-size: 24px;
            }
            .stat-label {
                font-size: 11px;
            }
            .footer-links {
                gap: 10px;
            }
            .footer-links a {
                font-size: 12px;
            }
            .footer-info {
                font-size: 11px;
                gap: 4px;
            }
            .sidebar-card {
                padding: var(--spacing-sm);
            }
            .hot-list li a {
                font-size: 13px;
            }
            .tag-cloud .tag {
                font-size: 11px;
                padding: 4px 10px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1E5AAB;
            --primary-light: #2B7BD4;
            --primary-dark: #154080;
            --secondary: #2C3E50;
            --secondary-dark: #1A252F;
            --accent: #FF6B35;
            --accent-dark: #E55A2B;
            --bg-light: #F8FBFD;
            --bg-white: #FFFFFF;
            --bg-gray: #F0F4F8;
            --text-dark: #1A1A2E;
            --text-body: #3A3A4A;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5E7EB;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing: 24px;
            --spacing-md: 32px;
            --spacing-lg: 48px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', serif;
            --max-width: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
            font-size: 16px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--text-dark);
            margin-top: 0;
        }

        h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
        }

        h2 {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.35;
        }

        h3 {
            font-size: 20px;
            font-weight: 500;
            line-height: 1.4;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        /* Header & Navigation */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            margin: 0;
            padding: 0;
        }

        .nav-list li {
            margin: 0;
        }

        .nav-list a {
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }

        .nav-list a:hover {
            color: var(--primary);
        }

        .nav-list a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 20px !important;
            border-radius: var(--radius);
            font-weight: 600 !important;
            transition: background var(--transition), transform var(--transition) !important;
        }

        .nav-cta:hover {
            background: var(--accent-dark) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }

        .nav-cta::after {
            display: none !important;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-body);
            cursor: pointer;
            padding: 8px;
        }

        /* Hero Section - Flash Sale Style */
        .hero-flash {
            background: linear-gradient(135deg, #1a3a5c 0%, #1E5AAB 30%, #1a5276 60%, #0d3b5e 100%);
            position: relative;
            overflow: hidden;
            padding: var(--spacing-lg) 0;
        }

        .hero-flash::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-flash::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-flash-inner {
            position: relative;
            z-index: 1;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .flash-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 8px 20px;
            border-radius: 50px;
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
            animation: pulse-badge 2s infinite;
            margin-bottom: var(--spacing);
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.5);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(255, 107, 53, 0);
            }
        }

        .flash-dot {
            width: 8px;
            height: 8px;
            background: #fff;
            border-radius: 50%;
            animation: blink-dot 1s infinite;
        }

        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .hero-flash h1 {
            color: #fff;
            font-size: 36px;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            font-family: var(--font-heading);
            letter-spacing: 0.5px;
        }

        .hero-flash .hero-subtitle {
            color: rgba(255, 255, 255, 0.85);
            font-size: 17px;
            margin-bottom: var(--spacing-lg);
            max-width: 650px;
            line-height: 1.7;
        }

        .flash-countdown-row {
            display: flex;
            align-items: center;
            gap: var(--spacing);
            flex-wrap: wrap;
            margin-bottom: var(--spacing);
        }

        .countdown-timer {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 0, 0, 0.35);
            padding: 10px 18px;
            border-radius: var(--radius);
            backdrop-filter: blur(10px);
        }

        .countdown-timer .time-block {
            background: #fff;
            color: var(--secondary);
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 700;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            min-width: 40px;
            text-align: center;
            line-height: 1;
        }

        .countdown-timer .time-sep {
            color: #fff;
            font-weight: 700;
            font-size: 18px;
        }

        .countdown-label {
            color: rgba(255, 255, 255, 0.8);
            font-size: 13px;
            font-family: var(--font-heading);
        }

        .flash-match-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: var(--spacing);
            display: flex;
            align-items: center;
            gap: var(--spacing);
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
            margin-bottom: var(--spacing);
            border: 2px solid transparent;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .flash-match-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-lg), 0 0 0 4px rgba(255, 107, 53, 0.1);
        }

        .match-teams {
            display: flex;
            align-items: center;
            gap: var(--spacing);
            flex: 1;
            min-width: 200px;
        }

        .match-team {
            text-align: center;
            flex: 1;
        }

        .match-team-avatar {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-gray);
            margin: 0 auto 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-heading);
        }

        .match-team-name {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 15px;
            color: var(--text-dark);
        }

        .match-score {
            font-family: var(--font-heading);
            font-size: 42px;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: 2px;
            text-align: center;
            min-width: 100px;
        }

        .match-status {
            display: inline-block;
            background: #22c55e;
            color: #fff;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-family: var(--font-heading);
            letter-spacing: 0.5px;
        }

        .match-info-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .match-info-tag {
            font-size: 12px;
            color: var(--text-muted);
            background: var(--bg-gray);
            padding: 3px 10px;
            border-radius: 50px;
            font-family: var(--font-heading);
        }

        .flash-cta-row {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-family: var(--font-heading);
            font-size: 16px;
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
            color: #fff;
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-family: var(--font-heading);
            font-size: 16px;
            border: 2px solid rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            text-decoration: none;
        }

        /* Filter Tags Bar */
        .filter-section {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: var(--spacing-sm) 0;
            position: sticky;
            top: 64px;
            z-index: 999;
        }

        .filter-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 50px;
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            border: 1.5px solid var(--border);
            background: var(--bg-white);
            color: var(--text-body);
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
            user-select: none;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #f0f6ff;
        }

        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .filter-tag .tag-icon {
            font-size: 13px;
        }

        .filter-tag .tag-count {
            background: rgba(0, 0, 0, 0.08);
            padding: 2px 8px;
            border-radius: 50px;
            font-size: 11px;
            font-weight: 600;
        }

        .filter-tag.active .tag-count {
            background: rgba(255, 255, 255, 0.25);
        }

        /* Card Grid Section */
        .cards-section {
            padding: var(--spacing-xl) 0;
            background: var(--bg-light);
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing-lg);
        }

        .section-header h2 {
            margin: 0;
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .section-header .section-subtitle {
            color: var(--text-muted);
            font-size: 15px;
        }

        .score-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .score-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: var(--spacing);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
            cursor: pointer;
        }

        .score-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }

        .score-card .card-status-strip {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--border);
        }

        .score-card .card-status-strip.live {
            background: #22c55e;
            animation: live-strip 2s infinite;
        }

        @keyframes live-strip {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        .score-card .card-status-strip.upcoming {
            background: #f59e0b;
        }

        .score-card .card-status-strip.finished {
            background: var(--text-muted);
        }

        .card-league-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-heading);
            font-weight: 500;
            margin-bottom: 12px;
        }

        .card-league-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
        }

        .card-match-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 10px;
        }

        .card-team {
            text-align: center;
            flex: 1;
        }

        .card-team-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-gray);
            margin: 0 auto 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-heading);
        }

        .card-team-name {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 13px;
            color: var(--text-dark);
            line-height: 1.2;
        }

        .card-score-display {
            font-family: var(--font-heading);
            font-size: 28px;
            font-weight: 700;
            color: var(--secondary);
            text-align: center;
            min-width: 60px;
            letter-spacing: 1px;
        }

        .card-score-display.upcoming {
            color: var(--text-muted);
            font-size: 16px;
            font-weight: 500;
        }

        .card-time-info {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            font-family: var(--font-heading);
            margin-top: 4px;
        }

        .card-live-indicator {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: #22c55e;
            font-size: 12px;
            font-weight: 600;
            font-family: var(--font-heading);
        }

        .card-live-dot {
            width: 6px;
            height: 6px;
            background: #22c55e;
            border-radius: 50%;
            animation: blink-dot 1s infinite;
        }

        .card-events-preview {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 10px;
            padding-top: 10px;
            border-top: 1px solid var(--border-light);
        }

        .card-event-mini {
            font-size: 11px;
            color: var(--text-body);
            font-family: var(--font-heading);
            display: flex;
            align-items: center;
            gap: 3px;
        }

        .card-event-icon {
            font-size: 10px;
            color: var(--accent);
        }

        .card-detail-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            font-family: var(--font-heading);
            margin-top: 12px;
            transition: gap var(--transition);
        }

        .card-detail-link:hover {
            gap: 8px;
            color: var(--primary-light);
        }

        /* Pagination */
        .pagination-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: var(--spacing-xl);
            flex-wrap: wrap;
        }

        .page-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--bg-white);
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            cursor: pointer;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .page-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #f0f6ff;
        }

        .page-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        .load-more-btn {
            padding: 12px 32px;
            border-radius: var(--radius);
            border: 2px solid var(--primary);
            background: transparent;
            color: var(--primary);
            font-family: var(--font-heading);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .load-more-btn:hover {
            background: var(--primary);
            color: #fff;
        }

        /* Features Highlight */
        .features-section {
            padding: var(--spacing-xl) 0;
            background: var(--bg-white);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            text-align: center;
            padding: var(--spacing-lg) var(--spacing);
            background: var(--bg-light);
            border-radius: var(--radius-md);
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .feature-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .feature-icon-circle {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-sm);
            font-size: 26px;
            color: #fff;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
        }

        /* Stats Bar */
        .stats-bar {
            background: var(--secondary);
            padding: var(--spacing-lg) 0;
            position: relative;
            overflow: hidden;
        }

        .stats-bar::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .stat-item {
            color: #fff;
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-number .stat-unit {
            font-size: 18px;
            font-weight: 400;
            opacity: 0.8;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            font-family: var(--font-heading);
        }

        /* FAQ */
        .faq-section {
            padding: var(--spacing-xl) 0;
            background: var(--bg-light);
        }

        .faq-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }

        .faq-header h2 {
            margin-bottom: 8px;
        }

        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            text-align: left;
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-arrow {
            font-size: 14px;
            transition: transform var(--transition-slow);
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
        }

        /* CTA Form */
        .cta-section {
            padding: var(--spacing-xl) 0;
            background: var(--secondary);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-text h2 {
            color: #fff;
            font-size: 28px;
            margin-bottom: 12px;
        }

        .cta-text p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            line-height: 1.7;
        }

        .cta-form-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-lg);
        }

        .cta-form-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: var(--spacing);
            color: var(--text-dark);
        }

        .form-group {
            margin-bottom: var(--spacing-sm);
        }

        .form-group label {
            display: block;
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-family: var(--font-body);
            transition: border-color var(--transition), box-shadow var(--transition);
            background: var(--bg-white);
            color: var(--text-body);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.1);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius);
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
        }

        .form-submit-btn:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.3);
        }

        .form-privacy {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 10px;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            padding: var(--spacing-lg) 0;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }

        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            text-align: center;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-bottom: var(--spacing);
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: color var(--transition);
            font-family: var(--font-heading);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            margin: var(--spacing-sm) 0;
        }

        .footer-info {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
            align-items: center;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
        }

        .footer-info a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }

        .footer-info a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .score-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .cta-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .flash-match-card {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .match-teams {
                justify-content: center;
            }
            .match-score {
                font-size: 32px;
            }
            .hero-flash h1 {
                font-size: 28px;
            }
            .nav-list {
                gap: 16px;
            }
            .nav-list a {
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            .score-card-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-list {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: var(--spacing-sm);
                box-shadow: var(--shadow-md);
                border-top: 1px solid var(--border-light);
                gap: 4px;
                z-index: 999;
            }
            .nav-list.show {
                display: flex;
            }
            .nav-list a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                width: 100%;
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-list a.active {
                background: #f0f6ff;
            }
            .mobile-toggle {
                display: block;
            }
            .flash-countdown-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-flash h1 {
                font-size: 24px;
            }
            .filter-inner {
                gap: 6px;
            }
            .filter-tag {
                padding: 6px 12px;
                font-size: 12px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-number {
                font-size: 32px;
            }
            .pagination-row {
                gap: 4px;
            }
            .page-btn {
                width: 34px;
                height: 34px;
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .flash-match-card {
                padding: var(--spacing-sm);
            }
            .match-score {
                font-size: 28px;
                min-width: 70px;
            }
            .match-team-avatar {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }
            .hero-flash {
                padding: var(--spacing) 0;
            }
            .hero-flash h1 {
                font-size: 22px;
            }
            .countdown-timer .time-block {
                font-size: 18px;
                min-width: 32px;
                padding: 4px 8px;
            }
            .cta-form-card {
                padding: var(--spacing);
            }
            .footer-links {
                gap: 12px;
            }
            .footer-links a {
                font-size: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1E5AAB;
            --primary-light: #2B7BD4;
            --primary-dark: #154080;
            --secondary: #2C3E50;
            --secondary-dark: #1A252F;
            --accent: #FF6B35;
            --accent-dark: #E55A2B;
            --bg-light: #F8FBFD;
            --bg-white: #FFFFFF;
            --bg-gray: #F0F4F8;
            --text-dark: #1A1A2E;
            --text-body: #3A3A4A;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5E7EB;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing: 24px;
            --spacing-md: 32px;
            --spacing-lg: 48px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', serif;
            --max-width: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
            font-size: 16px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--text-dark);
            line-height: 1.35;
            margin-top: 0;
        }

        h1 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: var(--spacing);
        }
        h2 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
        }
        h3 {
            font-size: 20px;
            font-weight: 500;
            margin-bottom: var(--spacing-sm);
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        /* Header */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            margin: 0;
            padding: 0;
        }
        .nav-list li {
            margin: 0;
        }
        .nav-list a {
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .nav-list a:hover {
            color: var(--primary);
        }
        .nav-list a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }
        .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 20px !important;
            border-radius: var(--radius);
            font-weight: 600 !important;
            transition: background var(--transition), transform var(--transition) !important;
        }
        .nav-cta:hover {
            background: var(--accent-dark) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }
        .nav-cta::after {
            display: none !important;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-direction: column;
            gap: 5px;
            z-index: 1001;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-dark);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Hero */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, #E8F2FB 0%, #F0F6FC 30%, #E5EDF7 60%, #F8FBFD 100%);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(30, 90, 171, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .hero-text {
            flex: 1;
            min-width: 0;
        }
        .hero-breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: var(--spacing-sm);
            font-family: var(--font-heading);
        }
        .hero-breadcrumb a {
            color: var(--text-muted);
        }
        .hero-breadcrumb a:hover {
            color: var(--primary);
        }
        .hero-breadcrumb span {
            margin: 0 6px;
            color: var(--text-light);
        }
        .hero-text h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }
        .hero-text .hero-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: var(--spacing);
            max-width: 560px;
        }
        .hero-stats-row {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }
        .hero-stat-card {
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(4px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm) var(--spacing);
            text-align: center;
            min-width: 120px;
            box-shadow: var(--shadow-sm);
        }
        .hero-stat-card .stat-number {
            font-family: var(--font-heading);
            font-size: 38px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }
        .hero-stat-card .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
            font-family: var(--font-heading);
        }
        .hero-visual {
            flex: 0 0 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }
        .hero-visual img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            display: block;
        }
        .hero-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.55));
            padding: var(--spacing) var(--spacing-sm) var(--spacing-sm);
            color: #fff;
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
        }

        /* Main Content Area */
        .main-content-area {
            padding: var(--spacing-xl) 0;
            background: var(--bg-white);
        }
        .content-layout {
            display: flex;
            gap: var(--spacing-lg);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            align-items: flex-start;
        }
        /* Sidebar */
        .sidebar {
            flex: 0 0 260px;
            position: sticky;
            top: 84px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing) 0;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-title {
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            padding: 0 var(--spacing) var(--spacing-sm);
            border-bottom: 1px solid var(--border-light);
            margin-bottom: var(--spacing-xs);
        }
        .sidebar-nav {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-nav li {
            margin: 0;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 11px var(--spacing);
            font-family: var(--font-heading);
            font-size: 14px;
            color: var(--text-body);
            text-decoration: none;
            transition: all var(--transition);
            border-left: 3px solid transparent;
            gap: 10px;
        }
        .sidebar-nav a:hover {
            background: var(--bg-light);
            color: var(--primary);
            border-left-color: var(--primary-light);
        }
        .sidebar-nav a.active-sidebar {
            background: #EEF4FB;
            color: var(--primary);
            font-weight: 600;
            border-left-color: var(--primary);
        }
        .sidebar-nav a .sidebar-icon {
            width: 20px;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .sidebar-nav a.active-sidebar .sidebar-icon {
            color: var(--primary);
        }
        .sidebar-nav .sub-nav {
            list-style: none;
            padding-left: 32px;
            margin: 0;
        }
        .sidebar-nav .sub-nav a {
            font-size: 13px;
            padding: 8px var(--spacing);
            border-left: 3px solid transparent;
        }
        /* Content */
        .content-main {
            flex: 1;
            min-width: 0;
        }
        .content-section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        .content-section-header h2 {
            margin-bottom: 0;
            font-size: 22px;
        }
        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tag {
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-family: var(--font-heading);
            background: var(--bg-gray);
            color: var(--text-muted);
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .filter-tag:hover,
        .filter-tag.active-tag {
            background: #EEF4FB;
            color: var(--primary);
            border-color: var(--primary-light);
        }
        .content-cards-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing);
        }
        .content-card-horizontal {
            display: flex;
            gap: var(--spacing);
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            align-items: stretch;
        }
        .content-card-horizontal:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
            border-color: #D0DDE8;
        }
        .card-img-wrap {
            flex: 0 0 200px;
            position: relative;
            overflow: hidden;
            min-height: 160px;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .card-body {
            flex: 1;
            padding: var(--spacing-sm) var(--spacing);
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }
        .card-body .card-tag {
            display: inline-block;
            font-size: 11px;
            font-family: var(--font-heading);
            background: #EEF4FB;
            color: var(--primary);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
            width: fit-content;
            font-weight: 500;
        }
        .card-body h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .card-body h3 a {
            color: var(--text-dark);
            text-decoration: none;
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body .card-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-body .card-meta {
            font-size: 12px;
            color: var(--text-light);
            display: flex;
            gap: var(--spacing-sm);
            align-items: center;
        }
        .card-body .card-link {
            font-family: var(--font-heading);
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition);
        }
        .card-body .card-link:hover {
            color: var(--primary-light);
        }
        .card-body .card-link i {
            font-size: 11px;
            transition: transform var(--transition);
        }
        .card-body .card-link:hover i {
            transform: translateX(3px);
        }

        /* Pagination */
        .pagination-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing);
            border-top: 1px solid var(--border-light);
        }
        .pagination-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            background: var(--bg-white);
            border: 1px solid var(--border);
            color: var(--text-body);
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }
        .pagination-btn:hover {
            background: var(--bg-light);
            border-color: var(--primary-light);
            color: var(--primary);
        }
        .pagination-btn.active-page {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
            cursor: default;
        }
        .pagination-btn.active-page:hover {
            background: var(--primary);
            color: #fff;
        }
        .pagination-btn.disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }
        .pagination-ellipsis {
            width: 40px;
            text-align: center;
            color: var(--text-muted);
            font-size: 14px;
        }

        /* Deep Content Section */
        .deep-content-section {
            background: var(--bg-light);
            padding: var(--spacing-xl) 0;
        }
        .deep-content-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            display: flex;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .deep-text {
            flex: 1;
        }
        .deep-text h2 {
            font-size: 22px;
            margin-bottom: var(--spacing-sm);
        }
        .deep-text p {
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: var(--spacing-sm);
            font-size: 15px;
        }
        .deep-visual {
            flex: 0 0 340px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .deep-visual img {
            width: 100%;
            height: 240px;
            object-fit: cover;
        }

        /* FAQ */
        .faq-section {
            padding: var(--spacing-xl) 0;
            background: var(--bg-white);
        }
        .faq-section .section-title {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }
        .faq-section .section-title h2 {
            font-size: 24px;
            font-weight: 600;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            background: var(--bg-white);
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: var(--spacing-sm) var(--spacing);
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            background: none;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition-slow);
            color: var(--text-muted);
            font-size: 14px;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 var(--spacing) var(--spacing-sm);
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            background: var(--secondary);
            padding: var(--spacing-xl) 0;
            color: #fff;
        }
        .cta-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            display: flex;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .cta-text {
            flex: 1;
        }
        .cta-text h2 {
            color: #fff;
            font-size: 24px;
            margin-bottom: var(--spacing-xs);
        }
        .cta-text p {
            color: #C8D6E5;
            font-size: 15px;
            line-height: 1.7;
        }
        .cta-form-wrap {
            flex: 0 0 420px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: var(--spacing);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .cta-form-wrap .form-row {
            margin-bottom: var(--spacing-sm);
        }
        .cta-form-wrap label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 4px;
            color: #D0DCE8;
            font-family: var(--font-heading);
        }
        .cta-form-wrap input,
        .cta-form-wrap textarea {
            width: 100%;
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 15px;
            outline: none;
            transition: border-color var(--transition);
        }
        .cta-form-wrap input::placeholder,
        .cta-form-wrap textarea::placeholder {
            color: #A0B5CC;
        }
        .cta-form-wrap input:focus,
        .cta-form-wrap textarea:focus {
            border-color: var(--primary-light);
            background: rgba(255, 255, 255, 0.15);
        }
        .cta-form-wrap textarea {
            min-height: 80px;
            resize: vertical;
        }
        .cta-submit-btn {
            width: 100%;
            padding: 13px 24px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius);
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }
        .cta-submit-btn:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
        }
        .cta-privacy {
            font-size: 12px;
            color: #A0B5CC;
            text-align: center;
            margin-top: var(--spacing-xs);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary-dark);
            color: #B0BDCC;
            padding: var(--spacing-lg) 0;
            font-size: 14px;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            text-align: center;
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing);
        }
        .footer-links a {
            color: #B0BDCC;
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin: var(--spacing-sm) 0;
        }
        .footer-info {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 6px;
            font-size: 12px;
            color: #8899AA;
        }
        .footer-info a {
            color: #8899AA;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-info a:hover {
            color: #fff;
        }

        /* Mobile Sidebar Toggle */
        .sidebar-toggle-btn {
            display: none;
            width: 100%;
            padding: 10px 16px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            cursor: pointer;
            text-align: left;
            margin-bottom: var(--spacing);
            transition: all var(--transition);
        }
        .sidebar-toggle-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }
        .sidebar-toggle-btn i {
            float: right;
            transition: transform var(--transition);
        }
        .sidebar-toggle-btn.expanded i {
            transform: rotate(180deg);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-inner {
                flex-direction: column;
                gap: var(--spacing);
            }
            .hero-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 500px;
            }
            .hero-visual img {
                height: 200px;
            }
            .content-layout {
                flex-direction: column;
            }
            .sidebar {
                flex: 0 0 auto;
                position: static;
                width: 100%;
                display: none;
            }
            .sidebar.visible {
                display: block;
            }
            .sidebar-toggle-btn {
                display: block;
            }
            .card-img-wrap {
                flex: 0 0 150px;
                min-height: 130px;
            }
            .deep-content-inner {
                flex-direction: column;
            }
            .deep-visual {
                flex: 0 0 auto;
                width: 100%;
            }
            .cta-inner {
                flex-direction: column;
            }
            .cta-form-wrap {
                flex: 0 0 auto;
                width: 100%;
                max-width: 500px;
            }
            .nav-list {
                gap: 16px;
            }
            .nav-list a {
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-list {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(255, 255, 255, 0.98);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: var(--spacing);
                transform: translateX(100%);
                transition: transform var(--transition-slow);
                z-index: 999;
                overflow-y: auto;
                backdrop-filter: blur(8px);
            }
            .nav-list.open {
                transform: translateX(0);
            }
            .nav-list li {
                width: 100%;
            }
            .nav-list a {
                display: block;
                padding: 14px 0;
                font-size: 16px;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-list a.active {
                background: #EEF4FB;
                border-radius: var(--radius-sm);
                padding-left: 12px;
            }
            .nav-cta {
                text-align: center;
                margin-top: var(--spacing-sm);
                border-radius: var(--radius) !important;
            }
            .hero-stats-row {
                gap: var(--spacing-sm);
            }
            .hero-stat-card {
                min-width: 90px;
                padding: var(--spacing-xs) var(--spacing-sm);
            }
            .hero-stat-card .stat-number {
                font-size: 28px;
            }
            .hero-text h1 {
                font-size: 26px;
            }
            .content-card-horizontal {
                flex-direction: column;
            }
            .card-img-wrap {
                flex: 0 0 auto;
                width: 100%;
                height: 180px;
                min-height: auto;
            }
            .card-body {
                padding: var(--spacing-sm);
            }
            .pagination-btn {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
            .content-section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-links {
                gap: 8px;
            }
            .footer-info {
                flex-direction: column;
                align-items: center;
                gap: 2px;
            }
            .footer-info span:nth-child(2),
            .footer-info span:nth-child(4) {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .hero-stats-row {
                flex-direction: column;
                gap: 8px;
            }
            .hero-stat-card {
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: var(--spacing-xs) var(--spacing-sm);
                text-align: left;
            }
            .hero-stat-card .stat-number {
                font-size: 26px;
            }
            .hero-stat-card .stat-label {
                margin-top: 0;
            }
            .hero-visual img {
                height: 150px;
            }
            .pagination-wrap {
                gap: 3px;
            }
            .pagination-btn {
                width: 32px;
                height: 32px;
                font-size: 12px;
            }
            .cta-form-wrap {
                padding: var(--spacing-sm);
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1E5AAB;
            --primary-light: #2B7BD4;
            --primary-dark: #154080;
            --secondary: #2C3E50;
            --secondary-dark: #1A252F;
            --accent: #FF6B35;
            --accent-dark: #E55A2B;
            --bg-light: #F8FBFD;
            --bg-white: #FFFFFF;
            --bg-gray: #F0F4F8;
            --text-dark: #1A1A2E;
            --text-body: #3A3A4A;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5E7EB;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing: 24px;
            --spacing-md: 32px;
            --spacing-lg: 48px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', serif;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            box-sizing: border-box;
        }
        *,
        *::before,
        *::after {
            box-sizing: inherit;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
            font-size: 16px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--text-dark);
            margin-top: 0;
        }
        h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
        }
        h2 {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.35;
        }
        h3 {
            font-size: 20px;
            font-weight: 500;
            line-height: 1.4;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        /* Header & Navigation */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            margin: 0;
            padding: 0;
        }
        .nav-list li {
            margin: 0;
        }
        .nav-list a {
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .nav-list a:hover {
            color: var(--primary);
        }
        .nav-list a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }
        .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 20px !important;
            border-radius: var(--radius);
            font-weight: 600 !important;
            transition: background var(--transition), transform var(--transition) !important;
        }
        .nav-cta:hover {
            background: var(--accent-dark) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }
        .nav-cta::after {
            display: none !important;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-dark);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }
        .nav-toggle:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        /* Sections */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-sm {
            padding: var(--spacing-lg) 0;
        }
        .section-lg {
            padding: var(--spacing-2xl) 0;
        }
        .bg-light {
            background-color: var(--bg-light);
        }
        .bg-gray {
            background-color: var(--bg-gray);
        }
        .bg-dark {
            background-color: var(--secondary);
            color: #fff;
        }
        .bg-dark h2,
        .bg-dark h3 {
            color: #fff;
        }
        .bg-dark .text-muted {
            color: rgba(255, 255, 255, 0.7);
        }

        /* Hero */
        .hero-category {
            background: linear-gradient(135deg, #E8F2FB 0%, #F0F6FC 30%, #F8FBFD 60%, #EDF4FA 100%);
            padding: var(--spacing-2xl) 0 var(--spacing-xl);
            position: relative;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(30, 90, 171, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-category::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-category .hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: var(--spacing-xl);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .hero-category .hero-text {
            flex: 1;
            min-width: 0;
        }
        .hero-category .hero-badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: var(--spacing-sm);
            font-family: var(--font-heading);
            letter-spacing: 0.5px;
        }
        .hero-category h1 {
            font-size: 36px;
            margin-bottom: var(--spacing-sm);
            color: var(--text-dark);
        }
        .hero-category .hero-desc {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 600px;
            margin-bottom: var(--spacing);
        }
        .hero-category .hero-stats-row {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }
        .hero-category .hero-stat-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm) var(--spacing);
            box-shadow: var(--shadow-sm);
            text-align: center;
            min-width: 100px;
            flex: 1;
            max-width: 160px;
        }
        .hero-category .hero-stat-num {
            font-family: var(--font-heading);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }
        .hero-category .hero-stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .hero-category .hero-image {
            flex: 0 0 420px;
            max-width: 420px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .hero-category .hero-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* Buttons */
        .btn {
            display: inline-block;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 24px;
            border-radius: var(--radius);
            border: none;
            cursor: pointer;
            text-align: center;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn:hover {
            text-decoration: none;
            transform: translateY(-1px);
        }
        .btn-primary {
            background: var(--secondary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--secondary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 16px 32px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }

        /* Cards */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .card-body {
            padding: var(--spacing);
        }
        .card-image {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }

        /* Table */
        .table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
            background: var(--bg-white);
            border: 1px solid var(--border-light);
        }
        .strategy-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px;
            font-size: 15px;
        }
        .strategy-table thead th {
            background: var(--primary);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 14px;
            padding: 14px 16px;
            text-align: left;
            white-space: nowrap;
            border: none;
        }
        .strategy-table thead th:first-child {
            border-radius: var(--radius-md) 0 0 0;
        }
        .strategy-table thead th:last-child {
            border-radius: 0 var(--radius-md) 0 0;
        }
        .strategy-table tbody td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-body);
            vertical-align: middle;
        }
        .strategy-table tbody tr {
            transition: background var(--transition);
        }
        .strategy-table tbody tr:hover {
            background: var(--bg-light);
        }
        .strategy-table tbody tr:last-child td {
            border-bottom: none;
        }
        .strategy-table .badge-cell {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            font-family: var(--font-heading);
        }
        .badge-high {
            background: #E8F5E9;
            color: #2E7D32;
        }
        .badge-mid {
            background: #FFF3E0;
            color: #E65100;
        }
        .badge-stable {
            background: #E3F2FD;
            color: #1565C0;
        }
        .badge-up {
            background: #FCE4EC;
            color: #C62828;
        }
        .trend-up {
            color: #2E7D32;
            font-weight: 600;
        }
        .trend-down {
            color: #C62828;
            font-weight: 600;
        }
        .trend-flat {
            color: #6B7280;
        }

        /* Download Cards */
        .download-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing);
        }
        .download-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: var(--spacing);
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-sm);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            cursor: pointer;
        }
        .download-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .download-card .dl-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .download-card .dl-info h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text-dark);
        }
        .download-card .dl-info p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0 0 8px;
            line-height: 1.5;
        }
        .download-card .dl-info .dl-meta {
            font-size: 12px;
            color: var(--text-light);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question:focus {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
            border-radius: var(--radius);
        }
        .faq-arrow {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition-slow);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item.open .faq-question {
            color: var(--primary);
            background: var(--bg-light);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            background: var(--secondary);
            color: #fff;
            padding: var(--spacing-xl) 0;
            text-align: center;
        }
        .cta-section h2 {
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto var(--spacing);
            font-size: 16px;
        }
        .cta-form-row {
            display: flex;
            gap: var(--spacing-sm);
            max-width: 600px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form-row input {
            flex: 1;
            min-width: 180px;
            padding: 12px 16px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            font-size: 15px;
            background: #fff;
            color: var(--text-dark);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .cta-form-row input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.15);
        }
        .cta-form-row .btn-accent {
            flex-shrink: 0;
        }
        .cta-privacy {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: var(--spacing-sm);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-lg) 0;
            font-size: 14px;
            line-height: 1.8;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            text-align: center;
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-bottom: var(--spacing);
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-divider {
            width: 60px;
            height: 2px;
            background: rgba(255, 255, 255, 0.2);
            margin: 0 auto var(--spacing);
            border-radius: 1px;
        }
        .footer-info {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
            align-items: center;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
        }
        .footer-info a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }
        .footer-info a:hover {
            color: #fff;
        }

        /* Section title */
        .section-title {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }
        .section-title h2 {
            margin-bottom: var(--spacing-xs);
        }
        .section-title .title-line {
            width: 48px;
            height: 3px;
            background: var(--primary);
            margin: 0 auto;
            border-radius: 2px;
        }
        .section-title p {
            color: var(--text-muted);
            max-width: 600px;
            margin: var(--spacing-sm) auto 0;
            font-size: 15px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-category .hero-inner {
                flex-direction: column;
                text-align: center;
            }
            .hero-category .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-category .hero-stats-row {
                justify-content: center;
            }
            .hero-category .hero-image {
                flex: 0 0 auto;
                max-width: 100%;
                width: 100%;
                max-height: 320px;
            }
            .hero-category .hero-image img {
                aspect-ratio: 16/9;
                object-fit: cover;
            }
            .download-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-list {
                gap: 16px;
            }
            .nav-list a {
                font-size: 13px;
            }
            h1 {
                font-size: 28px;
            }
            h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                gap: 0;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border-light);
                padding: 8px 0;
                z-index: 999;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li {
                width: 100%;
            }
            .nav-list a {
                display: block;
                padding: 12px 24px;
                font-size: 15px;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-list a.active {
                background: var(--bg-light);
            }
            .nav-cta {
                margin: 8px 16px;
                text-align: center;
                border-radius: var(--radius);
            }
            .hero-category {
                padding: var(--spacing-xl) 0 var(--spacing-lg);
            }
            .hero-category h1 {
                font-size: 26px;
            }
            .hero-category .hero-stats-row {
                gap: var(--spacing-sm);
            }
            .hero-category .hero-stat-item {
                min-width: 80px;
                flex: 1 1 40%;
                max-width: none;
            }
            .hero-category .hero-stat-num {
                font-size: 28px;
            }
            .download-grid {
                grid-template-columns: 1fr;
            }
            .strategy-table {
                min-width: 650px;
                font-size: 13px;
            }
            .strategy-table thead th,
            .strategy-table tbody td {
                padding: 10px 12px;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .cta-form-row {
                flex-direction: column;
                align-items: center;
            }
            .cta-form-row input {
                width: 100%;
                max-width: 400px;
            }
            .footer-links {
                gap: 12px;
            }
            h1 {
                font-size: 24px;
            }
            h2 {
                font-size: 20px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 56px;
                padding: 0 var(--spacing-sm);
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .hero-category {
                padding: var(--spacing-lg) 0;
            }
            .hero-category h1 {
                font-size: 22px;
            }
            .hero-category .hero-desc {
                font-size: 15px;
            }
            .hero-category .hero-stat-num {
                font-size: 24px;
            }
            .hero-category .hero-stat-item {
                padding: var(--spacing-xs) var(--spacing-sm);
            }
            .container {
                padding: 0 var(--spacing-sm);
            }
            .section {
                padding: var(--spacing-md) 0;
            }
            .section-title {
                margin-bottom: var(--spacing);
            }
            .strategy-table {
                min-width: 500px;
                font-size: 12px;
            }
            .download-card {
                padding: var(--spacing-sm);
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 14px 24px;
                font-size: 15px;
            }
            h1 {
                font-size: 22px;
            }
            h2 {
                font-size: 18px;
            }
            h3 {
                font-size: 17px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1E5AAB;
            --primary-light: #2B7BD4;
            --primary-dark: #154080;
            --secondary: #2C3E50;
            --secondary-dark: #1A252F;
            --accent: #FF6B35;
            --accent-dark: #E55A2B;
            --bg-light: #F8FBFD;
            --bg-white: #FFFFFF;
            --bg-gray: #F0F4F8;
            --text-dark: #1A1A2E;
            --text-body: #3A3A4A;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5E7EB;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing: 24px;
            --spacing-md: 32px;
            --spacing-lg: 48px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', serif;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
            font-size: 16px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--text-dark);
            margin-top: 0;
        }

        h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
        }

        h2 {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.35;
        }

        h3 {
            font-size: 20px;
            font-weight: 500;
            line-height: 1.4;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        /* Header & Navigation */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            margin: 0;
            padding: 0;
        }

        .nav-list li {
            margin: 0;
        }

        .nav-list a {
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }

        .nav-list a:hover {
            color: var(--primary);
        }

        .nav-list a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 20px !important;
            border-radius: var(--radius);
            font-weight: 600 !important;
            transition: background var(--transition), transform var(--transition) !important;
            font-size: 14px !important;
        }

        .nav-cta:hover {
            background: var(--accent-dark) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }

        .nav-cta::after {
            display: none !important;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-body);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(160deg, #F0F6FC 0%, #E8F0F8 30%, #F8FBFD 60%, #FFFFFF 100%);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(30, 90, 171, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            position: relative;
            z-index: 1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }

        .hero-content h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }

        .hero-content h1 span {
            color: var(--primary);
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: var(--spacing);
        }

        .hero-stats-row {
            display: flex;
            gap: var(--spacing);
            margin-bottom: var(--spacing);
            flex-wrap: wrap;
        }

        .hero-stat-card {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(4px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm) var(--spacing);
            text-align: center;
            flex: 1;
            min-width: 100px;
            box-shadow: var(--shadow-sm);
        }

        .hero-stat-card .stat-number {
            font-family: var(--font-heading);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            display: block;
        }

        .hero-stat-card .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
            display: block;
        }

        .hero-progress-wrap {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing);
            margin-bottom: var(--spacing);
            box-shadow: var(--shadow-sm);
        }

        .hero-progress-wrap .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 8px;
            font-family: var(--font-heading);
        }

        .hero-progress-wrap .progress-bar-bg {
            height: 10px;
            background: var(--bg-gray);
            border-radius: 5px;
            overflow: hidden;
        }

        .hero-progress-wrap .progress-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            border-radius: 5px;
            transition: width 1s ease;
            width: 78%;
        }

        .hero-cta-group {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: var(--radius);
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            text-align: center;
            transition: all var(--transition);
            border: none;
            text-decoration: none;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-secondary {
            background: var(--secondary);
            color: #fff;
        }

        .btn-secondary:hover {
            background: var(--secondary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
            background: var(--bg-gray);
        }

        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-image-badge {
            position: absolute;
            bottom: 16px;
            right: 16px;
            background: rgba(44, 62, 80, 0.9);
            color: #fff;
            padding: 8px 16px;
            border-radius: var(--radius);
            font-size: 13px;
            font-weight: 600;
            font-family: var(--font-heading);
            backdrop-filter: blur(4px);
        }

        /* Section Common */
        .section {
            padding: var(--spacing-xl) 0;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }

        .section-header h2 {
            font-size: 26px;
            margin-bottom: var(--spacing-xs);
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 650px;
            margin: 0 auto;
        }

        .section-tag {
            display: inline-block;
            background: rgba(30, 90, 171, 0.08);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            font-family: var(--font-heading);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.5px;
        }

        /* Alternating Image-Text Rows */
        .alt-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
            margin-bottom: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid var(--border-light);
        }

        .alt-row:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .alt-row.reverse .alt-image {
            order: 2;
        }

        .alt-row.reverse .alt-text {
            order: 1;
        }

        .alt-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow);
            aspect-ratio: 16/10;
            background: var(--bg-gray);
            position: relative;
        }

        .alt-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .alt-image:hover img {
            transform: scale(1.04);
        }

        .alt-image .image-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            font-family: var(--font-heading);
            z-index: 2;
        }

        .alt-text h3 {
            font-size: 22px;
            margin-bottom: var(--spacing-sm);
            color: var(--text-dark);
        }

        .alt-text .alt-meta {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            margin-bottom: var(--spacing-sm);
        }

        .alt-text .alt-meta span {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .alt-text .alt-meta span i {
            color: var(--primary);
            font-size: 12px;
        }

        .alt-text p {
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: var(--spacing-sm);
            font-size: 15px;
        }

        .alt-text .alt-highlights {
            list-style: none;
            padding: 0;
            margin: 0 0 var(--spacing-sm) 0;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .alt-text .alt-highlights li {
            background: var(--bg-light);
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-body);
            font-family: var(--font-heading);
            border: 1px solid var(--border-light);
        }

        .text-link {
            color: var(--primary);
            font-weight: 600;
            font-family: var(--font-heading);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }

        .text-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        .text-link i {
            font-size: 12px;
        }

        /* Data Highlight Section */
        .data-highlight-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing);
        }

        .data-highlight-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing);
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .data-highlight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .data-highlight-card .dh-icon {
            width: 48px;
            height: 48px;
            background: rgba(30, 90, 171, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-sm);
            color: var(--primary);
            font-size: 20px;
        }

        .data-highlight-card .dh-number {
            font-family: var(--font-heading);
            font-size: 40px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.1;
            display: block;
        }

        .data-highlight-card .dh-unit {
            font-size: 16px;
            color: var(--text-muted);
            font-weight: 400;
        }

        .data-highlight-card .dh-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
            font-family: var(--font-heading);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: var(--spacing-sm) var(--spacing);
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 16px;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg-white);
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: var(--bg-light);
        }

        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 var(--spacing);
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 var(--spacing) var(--spacing-sm);
        }

        /* CTA Section */
        .cta-section {
            background: var(--secondary);
            padding: var(--spacing-xl) 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cta-text h2 {
            color: #fff;
            font-size: 26px;
            margin-bottom: var(--spacing-sm);
        }

        .cta-text p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .cta-form-wrap {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: var(--spacing);
            backdrop-filter: blur(4px);
        }

        .cta-form-wrap .form-row {
            margin-bottom: var(--spacing-sm);
        }

        .cta-form-wrap label {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            font-weight: 500;
            font-family: var(--font-heading);
            display: block;
            margin-bottom: 4px;
        }

        .cta-form-wrap input,
        .cta-form-wrap textarea {
            width: 100%;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 15px;
            transition: border-color var(--transition);
            outline: none;
        }

        .cta-form-wrap input:focus,
        .cta-form-wrap textarea:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.12);
        }

        .cta-form-wrap input::placeholder,
        .cta-form-wrap textarea::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .cta-form-wrap .privacy-note {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: var(--spacing-xs);
            text-align: center;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            width: 100%;
            padding: 12px 24px;
            border-radius: var(--radius);
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            border: none;
            transition: all var(--transition);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.3);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-lg) 0 var(--spacing);
            font-size: 14px;
        }

        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            text-align: center;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing);
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-divider {
            height: 1px;
            background: rgba(255, 255, 255, 0.1);
            margin: var(--spacing-sm) 0;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .footer-info {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 4px;
            align-items: center;
        }

        .footer-info a {
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-info a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }

            .hero-image-wrap {
                aspect-ratio: 16/9;
                max-height: 360px;
            }

            .hero-content h1 {
                font-size: 28px;
            }

            .alt-row {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }

            .alt-row.reverse .alt-image {
                order: 1;
            }

            .alt-row.reverse .alt-text {
                order: 2;
            }

            .alt-image {
                aspect-ratio: 16/9;
            }

            .data-highlight-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cta-inner {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }

            .nav-list {
                gap: 16px;
            }

            .nav-list a {
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
            }

            .nav-list {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: var(--spacing-sm);
                gap: 0;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border-light);
                z-index: 999;
            }

            .nav-list.open {
                display: flex;
            }

            .nav-list li {
                width: 100%;
            }

            .nav-list a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 15px;
            }

            .nav-list a.active::after {
                display: none;
            }

            .nav-list a.active {
                background: rgba(30, 90, 171, 0.06);
            }

            .nav-cta {
                margin-top: 4px;
                text-align: center;
                border-radius: var(--radius-sm);
            }

            .mobile-toggle {
                display: block;
            }

            .hero-section {
                padding: var(--spacing-lg) 0 var(--spacing);
            }

            .hero-content h1 {
                font-size: 24px;
            }

            .hero-stats-row {
                gap: var(--spacing-xs);
            }

            .hero-stat-card {
                padding: var(--spacing-xs) var(--spacing-sm);
                min-width: 70px;
            }

            .hero-stat-card .stat-number {
                font-size: 26px;
            }

            .hero-stat-card .stat-label {
                font-size: 11px;
            }

            .data-highlight-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }

            .data-highlight-card .dh-number {
                font-size: 30px;
            }

            .section {
                padding: var(--spacing-lg) 0;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .alt-text h3 {
                font-size: 18px;
            }

            .alt-text p {
                font-size: 14px;
            }

            .footer-links {
                gap: 8px;
            }

            .footer-links a {
                font-size: 12px;
            }

            .footer-info {
                font-size: 11px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 21px;
            }

            .hero-subtitle {
                font-size: 14px;
            }

            .hero-stats-row {
                flex-direction: row;
                flex-wrap: wrap;
            }

            .hero-stat-card {
                flex: 1 1 40%;
            }

            .hero-stat-card .stat-number {
                font-size: 22px;
            }

            .data-highlight-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }

            .hero-cta-group {
                flex-direction: column;
            }

            .hero-cta-group .btn {
                width: 100%;
                text-align: center;
            }

            .btn {
                font-size: 14px;
                padding: 10px 18px;
            }

            .section-header h2 {
                font-size: 20px;
            }

            .cta-text h2 {
                font-size: 20px;
            }

            .container {
                padding: 0 var(--spacing-sm);
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1E5AAB;
            --primary-light: #2B7BD4;
            --primary-dark: #154080;
            --secondary: #2C3E50;
            --secondary-dark: #1A252F;
            --accent: #FF6B35;
            --accent-dark: #E55A2B;
            --bg-light: #F8FBFD;
            --bg-white: #FFFFFF;
            --bg-gray: #F0F4F8;
            --text-dark: #1A1A2E;
            --text-body: #3A3A4A;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5E7EB;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing: 24px;
            --spacing-md: 32px;
            --spacing-lg: 48px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', serif;
            --max-width: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
            font-size: 16px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        /* Header */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            margin: 0;
            padding: 0;
        }
        .nav-list li {
            margin: 0;
        }
        .nav-list a {
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .nav-list a:hover {
            color: var(--primary);
        }
        .nav-list a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }
        .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 20px !important;
            border-radius: var(--radius);
            font-weight: 600 !important;
            transition: background var(--transition), transform var(--transition) !important;
        }
        .nav-cta:hover {
            background: var(--accent-dark) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }
        .nav-cta::after {
            display: none !important;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-body);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        /* Buttons */
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: var(--radius);
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            text-align: center;
            line-height: 1.4;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--secondary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--secondary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(160deg, #EBF3FB 0%, #F8FBFD 40%, #FFFFFF 100%);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -180px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(30, 90, 171, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(30, 90, 171, 0.08);
            color: var(--primary);
            font-family: var(--font-heading);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.5px;
        }
        .hero-title {
            font-family: var(--font-heading);
            font-size: 36px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 var(--spacing-sm);
            line-height: 1.3;
        }
        .hero-subtitle {
            font-family: var(--font-body);
            font-size: 17px;
            color: var(--text-muted);
            margin: 0 0 var(--spacing-md);
            line-height: 1.7;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
            margin-top: var(--spacing);
        }
        .hero-stat-card {
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(6px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing) var(--spacing-md);
            text-align: center;
            min-width: 150px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .hero-stat-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .hero-stat-number {
            font-family: var(--font-heading);
            font-size: 42px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
        }
        .hero-stat-label {
            font-family: var(--font-heading);
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            letter-spacing: 0.3px;
        }
        .hero-stat-trend {
            font-size: 12px;
            color: #10B981;
            margin-top: 4px;
            font-weight: 600;
        }
        .hero-stat-trend i {
            font-size: 10px;
        }

        /* Section */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-gray {
            background: var(--bg-gray);
        }
        .section-light {
            background: var(--bg-light);
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            text-align: center;
            margin: 0 0 var(--spacing-xs);
            line-height: 1.3;
        }
        .section-subtitle {
            font-family: var(--font-body);
            font-size: 15px;
            color: var(--text-muted);
            text-align: center;
            margin: 0 0 var(--spacing-lg);
            line-height: 1.6;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Gallery Viewer */
        .gallery-viewer {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            margin-bottom: var(--spacing-lg);
        }
        .gallery-main {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 9;
            background: #1A1A2E;
            overflow: hidden;
            cursor: pointer;
        }
        .gallery-main img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: opacity var(--transition-slow);
        }
        .gallery-play-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 0, 0, 0.3);
            transition: background var(--transition);
        }
        .gallery-play-overlay:hover {
            background: rgba(0, 0, 0, 0.45);
        }
        .gallery-play-btn {
            width: 72px;
            height: 72px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary);
            transition: all var(--transition);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }
        .gallery-play-overlay:hover .gallery-play-btn {
            transform: scale(1.08);
            background: #fff;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
        }
        .gallery-label {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(0, 0, 0, 0.7);
            color: #fff;
            font-family: var(--font-heading);
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }
        .gallery-thumbs {
            display: flex;
            gap: 10px;
            padding: var(--spacing-sm);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
            border-top: 1px solid var(--border-light);
        }
        .gallery-thumbs::-webkit-scrollbar {
            height: 4px;
        }
        .gallery-thumbs::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 2px;
        }
        .gallery-thumb {
            flex-shrink: 0;
            width: 100px;
            height: 64px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all var(--transition);
            opacity: 0.7;
        }
        .gallery-thumb:hover {
            opacity: 0.9;
        }
        .gallery-thumb.active {
            border-color: var(--primary);
            opacity: 1;
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.15);
        }
        .gallery-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Thumbnail Grid */
        .thumbnail-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .thumb-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
            border: 1px solid var(--border-light);
        }
        .thumb-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .thumb-card-img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            background: #E8EDF3;
        }
        .thumb-card-body {
            padding: var(--spacing-sm);
        }
        .thumb-card-tag {
            display: inline-block;
            font-family: var(--font-heading);
            font-size: 11px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(30, 90, 171, 0.07);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .thumb-card-title {
            font-family: var(--font-heading);
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .thumb-card-desc {
            font-family: var(--font-body);
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }

        /* Cards */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: var(--spacing);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .faq-item.active {
            box-shadow: var(--shadow);
            border-color: var(--primary);
        }
        .faq-question {
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            padding: 18px 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition);
            margin: 0;
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            font-family: var(--font-body);
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* CTA Form */
        .cta-section {
            background: var(--secondary);
            padding: var(--spacing-xl) 0;
            color: #fff;
        }
        .cta-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .cta-text h2 {
            font-family: var(--font-heading);
            font-size: 28px;
            font-weight: 700;
            margin: 0 0 var(--spacing-sm);
            color: #fff;
        }
        .cta-text p {
            font-family: var(--font-body);
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
            line-height: 1.7;
        }
        .cta-form-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-lg);
        }
        .cta-form-card h3 {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 var(--spacing-sm);
        }
        .form-group {
            margin-bottom: var(--spacing-sm);
        }
        .form-group label {
            font-family: var(--font-heading);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-body);
            display: block;
            margin-bottom: 4px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-family: var(--font-body);
            transition: border-color var(--transition);
            background: var(--bg-light);
            color: var(--text-dark);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.08);
            background: #fff;
        }
        .form-group textarea {
            min-height: 80px;
            resize: vertical;
        }
        .form-privacy {
            font-size: 11px;
            color: var(--text-light);
            margin-top: 8px;
            line-height: 1.5;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-lg) 0;
            font-size: 14px;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            text-align: center;
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-bottom: var(--spacing);
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-divider {
            width: 60px;
            height: 1px;
            background: rgba(255, 255, 255, 0.2);
            margin: 0 auto var(--spacing-sm);
        }
        .footer-info {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.8;
        }
        .footer-info span {
            margin: 0 4px;
        }
        .footer-info a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 12px;
            transition: color var(--transition);
        }
        .footer-info a:hover {
            color: #fff;
        }

        /* Brand Intro */
        .brand-intro-block {
            background: var(--bg-white);
            border-left: 4px solid var(--primary);
            padding: var(--spacing-md);
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: var(--spacing-lg) 0;
            box-shadow: var(--shadow-sm);
        }
        .brand-intro-block p {
            font-family: var(--font-body);
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.9;
            margin: 0;
        }
        .brand-intro-block strong {
            color: var(--primary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .thumbnail-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .cta-inner {
                grid-template-columns: 1fr;
                gap: var(--spacing);
            }
            .hero-stats {
                gap: var(--spacing);
            }
            .nav-list {
                gap: 18px;
            }
            .nav-list a {
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .thumbnail-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-stat-number {
                font-size: 34px;
            }
            .hero-stats {
                gap: var(--spacing-sm);
            }
            .hero-stat-card {
                min-width: 120px;
                padding: var(--spacing-sm);
            }
            .section-title {
                font-size: 22px;
            }
            .gallery-thumb {
                width: 72px;
                height: 48px;
            }
            .gallery-play-btn {
                width: 54px;
                height: 54px;
                font-size: 20px;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                padding: var(--spacing);
                box-shadow: var(--shadow-md);
                gap: 6px;
                border-top: 1px solid var(--border-light);
                z-index: 999;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                width: 100%;
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-list a.active {
                background: rgba(30, 90, 171, 0.06);
            }
            .mobile-toggle {
                display: block;
            }
            .nav-cta {
                text-align: center;
                margin-top: 4px;
            }
            .cta-section {
                padding: var(--spacing-lg) 0;
            }
            .cta-text h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .thumbnail-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .hero-stats {
                flex-direction: column;
                align-items: center;
            }
            .hero-stat-card {
                width: 100%;
                max-width: 280px;
            }
            .hero-title {
                font-size: 24px;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-title {
                font-size: 20px;
            }
            .gallery-thumb {
                width: 56px;
                height: 38px;
            }
            .gallery-thumbs {
                gap: 6px;
                padding: 10px;
            }
            .thumb-card-body {
                padding: 10px;
            }
            .thumb-card-title {
                font-size: 13px;
            }
            .thumb-card-desc {
                font-size: 11px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 14px;
            }
            .cta-form-card {
                padding: var(--spacing);
            }
            .footer-links {
                gap: 12px;
            }
            .footer-links a {
                font-size: 12px;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1E5AAB;
            --primary-light: #2B7BD4;
            --primary-dark: #154080;
            --secondary: #2C3E50;
            --secondary-dark: #1A252F;
            --accent: #FF6B35;
            --accent-dark: #E55A2B;
            --bg-light: #F8FBFD;
            --bg-white: #FFFFFF;
            --bg-gray: #F0F4F8;
            --text-dark: #1A1A2E;
            --text-body: #3A3A4A;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5E7EB;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing: 24px;
            --spacing-md: 32px;
            --spacing-lg: 48px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', serif;
            --max-width: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
            font-size: 16px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--text-dark);
            margin-top: 0;
        }
        h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
        }
        h2 {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.35;
        }
        h3 {
            font-size: 20px;
            font-weight: 500;
            line-height: 1.4;
        }
        p {
            margin-top: 0;
            margin-bottom: 1em;
        }
        ul,
        ol {
            padding-left: 1.5em;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing);
        }

        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
            margin: 0;
            padding: 0;
        }
        .nav-list li {
            margin: 0;
        }
        .nav-list a {
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .nav-list a:hover {
            color: var(--primary);
        }
        .nav-list a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }
        .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 20px !important;
            border-radius: var(--radius);
            font-weight: 600 !important;
            transition: background var(--transition), transform var(--transition) !important;
        }
        .nav-cta:hover {
            background: var(--accent-dark) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }
        .nav-cta::after {
            display: none !important;
        }
        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-dark);
            cursor: pointer;
            padding: 8px;
        }

        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-sm {
            padding: var(--spacing-lg) 0;
        }
        .section-lg {
            padding: var(--spacing-2xl) 0;
        }
        .section-light {
            background: var(--bg-light);
        }
        .section-gray {
            background: var(--bg-gray);
        }
        .section-dark {
            background: var(--secondary);
            color: #fff;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-dark p {
            color: rgba(255, 255, 255, 0.85);
        }

        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: var(--radius);
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 15px;
            text-align: center;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--secondary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--secondary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 16px 32px;
            font-size: 17px;
        }

        .card {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .card-body {
            padding: var(--spacing);
        }
        .card-image {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            background: var(--bg-gray);
        }
        .card-title {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .card-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            font-family: var(--font-heading);
            background: var(--bg-gray);
            color: var(--text-muted);
        }
        .tag-primary {
            background: rgba(30, 90, 171, 0.1);
            color: var(--primary);
        }
        .tag-accent {
            background: rgba(255, 107, 53, 0.1);
            color: var(--accent);
        }

        .hero-tool {
            background: linear-gradient(160deg, #F0F6FD 0%, #E8F0FA 30%, #F8FBFD 60%, #FFFFFF 100%);
            padding: var(--spacing-2xl) 0 var(--spacing-xl);
            position: relative;
            overflow: hidden;
        }
        .hero-tool::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(30, 90, 171, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-tool-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-tool-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(30, 90, 171, 0.08);
            color: var(--primary);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            font-family: var(--font-heading);
            margin-bottom: var(--spacing-sm);
        }
        .hero-tool-title {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: var(--spacing-sm);
            color: var(--text-dark);
        }
        .hero-tool-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: var(--spacing);
        }
        .hero-tool-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-tool-visual {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-tool-visual img {
            max-width: 100%;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
        }

        .tool-section {
            padding: var(--spacing-xl) 0;
        }
        .tool-panel {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            overflow: hidden;
        }
        .tool-panel-header {
            background: var(--secondary);
            color: #fff;
            padding: var(--spacing) var(--spacing-md);
            display: flex;
            align-items: center;
            gap: 12px;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 18px;
        }
        .tool-panel-header i {
            font-size: 20px;
            color: var(--accent);
        }
        .tool-panel-body {
            padding: var(--spacing-md);
        }
        .tool-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing);
        }
        .tool-input-group {
            margin-bottom: var(--spacing);
        }
        .tool-input-group label {
            display: block;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 14px;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .tool-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--text-body);
            background: var(--bg-light);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .tool-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.1);
            background: #fff;
        }
        .tool-select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--text-body);
            background: var(--bg-light);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%236B7280'%3E%3Cpath d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            cursor: pointer;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .tool-select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.1);
            background: #fff;
        }
        .tool-result-area {
            background: var(--bg-light);
            border-radius: var(--radius);
            padding: var(--spacing);
            min-height: 320px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            border: 2px dashed var(--border);
            text-align: center;
        }
        .tool-result-area.active {
            border-color: var(--primary-light);
            border-style: solid;
            background: #fff;
        }
        .tool-result-placeholder {
            color: var(--text-muted);
            font-size: 15px;
        }
        .tool-result-placeholder i {
            font-size: 48px;
            color: var(--text-light);
            margin-bottom: 12px;
            display: block;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }
        .comparison-table th {
            background: var(--primary);
            color: #fff;
            padding: 10px 14px;
            text-align: center;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 13px;
        }
        .comparison-table td {
            padding: 10px 14px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
        }
        .comparison-table tr:nth-child(even) td {
            background: var(--bg-light);
        }
        .comparison-table .highlight {
            font-weight: 700;
            color: var(--primary);
        }
        .chart-placeholder {
            width: 100%;
            height: 200px;
            background: linear-gradient(180deg, rgba(30, 90, 171, 0.05) 0%, rgba(30, 90, 171, 0.02) 100%);
            border-radius: var(--radius);
            display: flex;
            align-items: flex-end;
            justify-content: space-around;
            padding: 20px 16px;
            gap: 12px;
            margin-top: 16px;
        }
        .chart-bar {
            width: 40px;
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
            transition: height var(--transition-slow);
            position: relative;
        }
        .chart-bar:nth-child(1) {
            background: var(--primary);
            height: 70%;
        }
        .chart-bar:nth-child(2) {
            background: var(--primary-light);
            height: 55%;
        }
        .chart-bar:nth-child(3) {
            background: var(--accent);
            height: 82%;
        }
        .chart-bar:nth-child(4) {
            background: var(--secondary);
            height: 48%;
        }
        .chart-bar:nth-child(5) {
            background: var(--primary);
            height: 65%;
        }
        .chart-label {
            position: absolute;
            bottom: -24px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 11px;
            color: var(--text-muted);
            white-space: nowrap;
            font-family: var(--font-heading);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing);
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: var(--spacing);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            background: rgba(30, 90, 171, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
        }
        .feature-card h3 {
            font-size: 17px;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .scenario-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing);
        }
        .scenario-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: var(--spacing);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }
        .scenario-item:hover {
            box-shadow: var(--shadow);
        }
        .scenario-num {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-family: var(--font-heading);
            font-size: 16px;
        }
        .scenario-content h3 {
            font-size: 16px;
            margin-bottom: 4px;
        }
        .scenario-content p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 20px;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-dark);
            background: var(--bg-white);
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question .faq-arrow {
            transition: transform var(--transition);
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition);
            padding: 0 20px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            background: var(--bg-light);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 20px;
        }

        .cta-section {
            background: var(--secondary);
            color: #fff;
            padding: var(--spacing-xl) 0;
            text-align: center;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 28px;
            margin-bottom: var(--spacing-sm);
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            margin-bottom: var(--spacing);
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form-inline {
            display: flex;
            gap: 12px;
            max-width: 560px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-input {
            flex: 1;
            min-width: 180px;
            padding: 14px 16px;
            border-radius: var(--radius);
            border: none;
            font-size: 15px;
            background: #fff;
            color: var(--text-dark);
        }
        .cta-input:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .cta-note {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 12px;
        }

        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-lg) 0 var(--spacing);
            font-size: 14px;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing);
            text-align: center;
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            margin-bottom: var(--spacing);
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-divider {
            height: 1px;
            background: rgba(255, 255, 255, 0.15);
            margin: var(--spacing) 0;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .footer-info {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 6px;
            align-items: center;
        }
        .footer-info a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-info a:hover {
            color: #fff;
        }
        .footer-info span {
            white-space: nowrap;
        }

        @media (max-width: 1024px) {
            .hero-tool-inner {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .hero-tool-visual {
                order: -1;
            }
            .hero-tool-title {
                font-size: 28px;
            }
            .tool-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-list {
                grid-template-columns: 1fr;
            }
            .nav-list {
                gap: 16px;
            }
            .nav-list a {
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: var(--spacing);
                gap: 0;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border-light);
                z-index: 999;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li {
                width: 100%;
            }
            .nav-list a {
                display: block;
                padding: 12px 16px;
                font-size: 15px;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-list a.active {
                background: var(--bg-light);
                border-left: 3px solid var(--primary);
            }
            .hamburger-toggle {
                display: block;
            }
            .hero-tool-title {
                font-size: 24px;
            }
            .hero-tool {
                padding: var(--spacing-lg) 0;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .cta-form-inline {
                flex-direction: column;
            }
            .cta-input {
                min-width: 100%;
            }
            .tool-panel-body {
                padding: var(--spacing);
            }
            .comparison-table {
                font-size: 12px;
            }
            .comparison-table th,
            .comparison-table td {
                padding: 8px 6px;
            }
        }
        @media (max-width: 520px) {
            .hero-tool-title {
                font-size: 22px;
            }
            .hero-tool-subtitle {
                font-size: 14px;
            }
            h1 {
                font-size: 24px;
            }
            h2 {
                font-size: 20px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .tool-result-area {
                min-height: 240px;
            }
            .chart-placeholder {
                height: 150px;
                padding: 12px 8px;
                gap: 6px;
            }
            .chart-bar {
                width: 28px;
            }
            .footer-links {
                gap: 10px;
            }
            .footer-links a {
                font-size: 12px;
            }
        }