/* roulang page: index */
:root {
            --primary: #2B6CB0;
            --primary-hover: #2C5282;
            --primary-light: #EBF4FF;
            --secondary-bg: #E2E8F0;
            --page-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --success: #48BB78;
            --warning: #ED8936;
            --danger: #F56565;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-weak: #94A3B8;
            --border-color: #CBD5E1;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.08);
            --radius-card: 12px;
            --radius-btn: 6px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--page-bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            transition: all 0.2s ease;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 72px 0;
        }

        .section-alt {
            background-color: #F1F5F9;
        }

        .section-title {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.03em;
            background-color: var(--secondary-bg);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-success {
            background-color: #F0FFF4;
            color: #2F855A;
        }

        .badge-warning {
            background-color: #FFFAF0;
            color: #C05621;
        }

        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            overflow: hidden;
            border: 0.5px solid #E9EEF4;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.01em;
            line-height: 1.5;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 1px 2px rgba(43, 108, 176, 0.2);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 10px rgba(43, 108, 176, 0.25);
        }

        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
        }

        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background-color: transparent;
            color: #FFFFFF;
            border: 1px solid rgba(255, 255, 255, 0.4);
        }

        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-1px);
        }

        .text-link {
            color: var(--primary);
            border-bottom: 1px solid rgba(43, 108, 176, 0.3);
            transition: color 0.2s ease, border-color 0.2s ease;
            font-weight: 500;
        }

        .text-link:hover {
            color: var(--primary-hover);
            border-bottom-color: var(--primary-hover);
        }

        .stat-value {
            font-size: 34px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }

        .section-tag {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.03em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 4px;
        }

        .image-placeholder {
            background-color: #EDF2F7;
            border-radius: 10px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            font-size: 14px;
            position: relative;
        }

        .image-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        .top-bar {
            background-color: #EDF2F7;
            height: 36px;
            display: flex;
            align-items: center;
            font-size: 12px;
            color: var(--text-secondary);
        }

        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .top-bar-left,
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .top-bar a {
            color: var(--text-secondary);
            text-decoration: none;
        }

        .top-bar a:hover {
            color: var(--primary);
        }

        .divider-dot {
            width: 3px;
            height: 3px;
            background-color: var(--text-weak);
            border-radius: 50%;
        }

        .main-nav {
            background-color: #FFFFFF;
            height: 68px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #EDF2F7;
            position: sticky;
            top: 0;
            z-index: 50;
            box-shadow: 0 1px 2px rgba(15, 23, 42, 0.03);
        }

        .main-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .nav-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-logo span {
            color: var(--primary);
        }

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

        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            position: relative;
            padding: 4px 0;
        }

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

        .nav-links a.active {
            color: var(--primary);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            transition: background-color 0.2s ease;
        }

        .nav-cta:hover {
            background-color: var(--primary-hover);
            color: #FFFFFF;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 20px;
            color: var(--text-main);
            cursor: pointer;
            padding: 8px;
            border-radius: 4px;
        }

        .mobile-menu {
            display: none;
            background-color: #FFFFFF;
            border-top: 1px solid #EDF2F7;
            padding: 16px 24px;
            flex-direction: column;
            gap: 12px;
        }

        .mobile-menu a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            text-decoration: none;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
        }

        .hero-section {
            background: linear-gradient(135deg, #FFFFFF 0%, #F1F5F9 100%);
            border-bottom: 1px solid #EDF2F7;
            padding: 80px 0 72px;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-image-wrap {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            aspect-ratio: 16/10;
        }

        .float-card {
            position: absolute;
            background: #FFFFFF;
            border-radius: 10px;
            box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
            padding: 12px 16px;
            border: 0.5px solid #E9EEF4;
            font-size: 12px;
            color: var(--text-secondary);
            z-index: 10;
        }

        .float-card strong {
            display: block;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            font-variant-numeric: tabular-nums;
        }

        .float-card-1 {
            bottom: 16px;
            right: 16px;
        }

        .float-card-2 {
            top: 16px;
            left: 16px;
        }

        .float-card-3 {
            bottom: 16px;
            left: 16px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 24px;
        }

        .stat-card {
            padding: 24px;
            background: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            position: relative;
        }

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

        .stat-card .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .stat-card .stat-trend {
            font-size: 14px;
            font-weight: 600;
            margin-top: 4px;
        }

        .stat-trend.up {
            color: var(--success);
        }

        .stat-trend.down {
            color: var(--danger);
        }

        .card-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

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

        .card-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .insight-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .insight-img {
            border-radius: 14px;
            overflow: hidden;
            aspect-ratio: 4/3;
        }

        .service-card {
            padding: 28px 24px;
            background: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .service-icon {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .compare-panel {
            border-radius: 14px;
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
        }

        .compare-traditional {
            background-color: #F1F5F9;
            border: 1px solid #E9EEF4;
        }

        .compare-modern {
            background-color: #FFFFFF;
            border: 1px solid var(--primary);
            position: relative;
        }

        .compare-modern::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background-color: var(--primary);
            border-radius: 14px 14px 0 0;
        }

        .compare-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .compare-item i {
            margin-top: 3px;
        }

        .compare-item .fa-check-circle {
            color: var(--success);
        }

        .compare-item .fa-times-circle {
            color: var(--text-weak);
        }

        .timeline {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
        }

        .timeline-item {
            display: flex;
            gap: 24px;
            padding-bottom: 32px;
            position: relative;
        }

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

        .timeline-dot {
            flex-shrink: 0;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--primary);
            margin-top: 6px;
            position: relative;
            z-index: 2;
            box-shadow: 0 0 0 4px rgba(43, 108, 176, 0.12);
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 5px;
            top: 18px;
            bottom: 0;
            width: 2px;
            background-color: #E2E8F0;
            z-index: 1;
        }

        .timeline-item:last-child::before {
            display: none;
        }

        .timeline-year {
            font-weight: 700;
            font-size: 18px;
            color: var(--primary);
            white-space: nowrap;
            min-width: 56px;
        }

        .timeline-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .timeline-content p {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .brand-intro {
            background: #FFFFFF;
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            padding: 40px 36px;
        }

        .news-card .image-placeholder {
            aspect-ratio: 16/10;
            border-radius: 10px 10px 0 0;
        }

        .news-card .card-body {
            padding: 20px 20px 18px;
        }

        .match-card {
            background: #FFFFFF;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            padding: 20px;
            min-width: 280px;
            flex-shrink: 0;
            scroll-snap-align: start;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

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

        .match-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            padding-bottom: 8px;
            -webkit-overflow-scrolling: touch;
        }

        .match-scroll::-webkit-scrollbar {
            height: 4px;
        }

        .match-scroll::-webkit-scrollbar-thumb {
            background-color: #CBD5E1;
            border-radius: 4px;
        }

        .topic-card {
            position: relative;
            border-radius: 14px;
            overflow: hidden;
            min-height: 220px;
            display: flex;
            align-items: flex-end;
            background-size: cover;
            background-position: center;
            box-shadow: var(--shadow-sm);
        }

        .topic-overlay {
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.05) 0%, rgba(15, 23, 42, 0.75) 100%);
            padding: 24px;
            width: 100%;
        }

        .topic-card h3 {
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .topic-card p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            line-height: 1.6;
        }

        .guarantee-card {
            padding: 24px 20px;
            background: #FFFFFF;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            text-align: center;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

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

        .partner-logo {
            background: #F1F5F9;
            border-radius: 8px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.03em;
            border: 0.5px solid #E9EEF4;
        }

        .testimonial-card {
            padding: 28px 24px;
            background: #FFFFFF;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .testimonial-stars {
            color: #F6AD55;
            letter-spacing: 2px;
            font-size: 14px;
        }

        .quick-qa {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 32px;
            align-items: start;
        }

        .qa-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .qa-item {
            padding: 14px 16px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 15px;
            color: var(--text-secondary);
            background: #FFFFFF;
            border: 0.5px solid #E9EEF4;
            transition: all 0.2s ease;
            font-weight: 500;
        }

        .qa-item:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .qa-item.active {
            background-color: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }

        .qa-detail {
            padding: 24px;
            background: #FFFFFF;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            min-height: 200px;
        }

        .qa-detail h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .qa-detail p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        .faq-item {
            border: 0.5px solid #E9EEF4;
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            background: #FFFFFF;
            transition: all 0.2s ease;
        }

        .faq-item:hover {
            border-color: #CBD5E1;
        }

        .faq-question {
            width: 100%;
            padding: 18px 20px;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            text-align: left;
            gap: 16px;
            line-height: 1.6;
        }

        .faq-question i {
            font-size: 14px;
            color: var(--text-weak);
            transition: transform 0.3s ease;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.85;
        }

        .faq-answer-inner {
            padding-bottom: 18px;
            border-left: 3px solid var(--primary);
            padding-left: 16px;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 0;
        }

        .resource-card {
            padding: 28px 24px;
            background: #FFFFFF;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

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

        .subscribe-card {
            background: linear-gradient(135deg, #FFFFFF 0%, #F1F5F9 100%);
            border-radius: 18px;
            padding: 48px 40px;
            text-align: center;
            border: 0.5px solid #E9EEF4;
            box-shadow: var(--shadow-sm);
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            justify-content: center;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            padding: 12px 18px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            width: 320px;
            max-width: 100%;
            font-size: 14px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .subscribe-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
        }

        .form-card {
            background: linear-gradient(135deg, #FFFFFF 0%, #E2E8F0 100%);
            border-radius: 16px;
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            border: 0.5px solid #E9EEF4;
            box-shadow: var(--shadow-sm);
        }

        .form-group {
            margin-bottom: 18px;
        }

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

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            font-size: 14px;
            background: #FFFFFF;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            color: var(--text-main);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
        }

        .form-submit {
            width: 100%;
            padding: 12px 24px;
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: background-color 0.2s ease, transform 0.2s ease;
        }

        .form-submit:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .footer {
            background-color: #1E293B;
            color: #CBD5E1;
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer h4 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer ul a {
            color: #CBD5E1;
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer ul a:hover {
            color: #FFFFFF;
        }

        .footer-brand {
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .footer-brand span {
            color: #63B3ED;
        }

        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 12px;
        }

        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            border: 1px solid #475569;
            border-radius: 6px;
            background: #0F172A;
            color: #FFFFFF;
            font-size: 13px;
        }

        .footer-subscribe input:focus {
            outline: none;
            border-color: #63B3ED;
        }

        .footer-subscribe button {
            padding: 10px 16px;
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
            border-radius: 6px;
            font-size: 13px;
            cursor: pointer;
            white-space: nowrap;
        }

        .footer-subscribe button:hover {
            background-color: var(--primary-hover);
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding: 20px 0;
            font-size: 13px;
            color: #94A3B8;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
        }

        .footer-bottom a {
            color: #94A3B8;
            text-decoration: none;
        }

        .footer-bottom a:hover {
            color: #FFFFFF;
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 1024px) {
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .card-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

            .insight-card {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .card-grid-4 {
                grid-template-columns: 1fr 1fr;
            }

            .card-grid-3 {
                grid-template-columns: 1fr;
            }

            .card-grid-2 {
                grid-template-columns: 1fr;
            }

            .quick-qa {
                grid-template-columns: 1fr;
            }

            .form-card {
                grid-template-columns: 1fr;
                padding: 24px;
            }

            .nav-links {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .hamburger {
                display: block;
            }

            .mobile-menu.show {
                display: flex;
            }

            .top-bar-left .divider-dot,
            .top-bar-left span:last-child {
                display: none;
            }

            .section {
                padding: 56px 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .card-grid-4 {
                grid-template-columns: 1fr;
            }

            .hero-section {
                padding: 48px 0 40px;
            }

            .float-card {
                font-size: 11px;
                padding: 8px 12px;
            }

            .float-card strong {
                font-size: 15px;
            }

            .timeline-item {
                gap: 12px;
            }

            .timeline-year {
                min-width: 44px;
                font-size: 15px;
            }

            .match-card {
                min-width: 240px;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input {
                width: 100%;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }

            .stat-value {
                font-size: 26px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2B6CB0;
            --primary-hover: #2C5282;
            --primary-light: #EBF4FF;
            --secondary-bg: #E2E8F0;
            --page-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --success: #48BB78;
            --warning: #ED8936;
            --danger: #F56565;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-weak: #94A3B8;
            --border-color: #CBD5E1;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.08);
            --radius-card: 12px;
            --radius-btn: 6px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--page-bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            transition: all 0.2s ease;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 64px 0;
        }

        .section-alt {
            background-color: #F1F5F9;
        }

        .section-title {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.03em;
            background-color: var(--secondary-bg);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-success {
            background-color: #F0FFF4;
            color: #2F855A;
        }

        .badge-warning {
            background-color: #FFFAF0;
            color: #C05621;
        }

        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            overflow: hidden;
            border: 0.5px solid #E9EEF4;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.01em;
            line-height: 1.5;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 1px 2px rgba(43, 108, 176, 0.2);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 10px rgba(43, 108, 176, 0.25);
        }

        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
        }

        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-1px);
        }

        .text-link {
            color: var(--primary);
            border-bottom: 1px solid rgba(43, 108, 176, 0.3);
            transition: color 0.2s ease, border-color 0.2s ease;
            font-weight: 500;
        }

        .text-link:hover {
            color: var(--primary-hover);
            border-bottom-color: var(--primary-hover);
        }

        .section-tag {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.03em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 4px;
        }

        .top-bar {
            background-color: #EDF2F7;
            height: 36px;
            display: flex;
            align-items: center;
            font-size: 12px;
            color: var(--text-secondary);
        }

        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .top-bar a {
            color: var(--text-secondary);
            text-decoration: none;
            margin-left: 16px;
            transition: color 0.2s ease;
        }

        .top-bar a:hover {
            color: var(--primary);
        }

        .divider-dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: #94A3B8;
            display: inline-block;
            margin: 0 8px;
            vertical-align: middle;
        }

        .main-nav {
            background-color: #FFFFFF;
            height: 68px;
            display: flex;
            align-items: center;
            box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .main-nav .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .logo-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo-brand span {
            color: var(--primary);
        }

        .logo-brand i {
            font-size: 24px;
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 2px solid transparent;
            transition: color 0.2s ease, border-color 0.2s ease;
            white-space: nowrap;
        }

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

        .nav-links a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-main);
            padding: 8px;
        }

        .mobile-nav {
            display: none;
            background: #FFFFFF;
            border-top: 1px solid #E9EEF4;
            padding: 16px 24px;
            flex-direction: column;
            gap: 12px;
        }

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

        .mobile-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 1px solid #F1F5F9;
        }

        .mobile-nav a.active {
            color: var(--primary);
        }

        .footer {
            background-color: #1E293B;
            color: #CBD5E1;
            padding: 48px 0 24px;
            font-size: 14px;
        }

        .footer .container {
            max-width: 1200px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.4px;
        }

        .footer-brand span {
            color: #60A5FA;
        }

        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.8;
            max-width: 280px;
        }

        .footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

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

        .footer ul li {
            margin-bottom: 10px;
        }

        .footer ul a {
            color: #94A3B8;
            transition: color 0.2s ease;
            font-size: 14px;
        }

        .footer ul a:hover {
            color: #FFFFFF;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 8px;
        }

        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            border-radius: 6px;
            border: 1px solid #334155;
            background: rgba(255, 255, 255, 0.05);
            color: #FFFFFF;
            font-size: 13px;
            max-width: 180px;
        }

        .footer-subscribe input::placeholder {
            color: #64748B;
        }

        .footer-subscribe button {
            padding: 10px 16px;
            border-radius: 6px;
            border: none;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 13px;
            font-weight: 500;
            transition: background 0.2s ease;
        }

        .footer-subscribe button:hover {
            background: var(--primary-hover);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid #334155;
            font-size: 13px;
            color: #64748B;
        }

        .footer-bottom-links a {
            color: #94A3B8;
            margin: 0 4px;
            transition: color 0.2s ease;
        }

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

        .hero-gradient {
            background: linear-gradient(135deg, #FFFFFF 0%, #E2E8F0 100%);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            padding: 20px 0;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--primary);
            transition: color 0.2s ease;
        }

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

        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .breadcrumb i {
            font-size: 10px;
            color: var(--text-weak);
        }

        .hero-section-cat {
            padding: 40px 0 56px;
            background: linear-gradient(135deg, #FFFFFF 0%, #E2E8F0 100%);
        }

        .hero-section-cat h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.5px;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .hero-section-cat .cat-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
        }

        .data-metric-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin: 24px 0;
        }

        .data-metric-item {
            background: #FFFFFF;
            border-radius: 10px;
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
        }

        .data-metric-item .metric-value {
            font-size: 30px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--primary);
            line-height: 1.2;
        }

        .data-metric-item .metric-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 6px;
        }

        .data-metric-item .metric-tag {
            font-size: 11px;
            font-weight: 500;
            color: var(--text-weak);
            letter-spacing: 0.03em;
            text-transform: uppercase;
            margin-bottom: 5px;
        }

        .cat-card-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .cat-card {
            display: flex;
            flex-direction: column;
            background: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 0.5px solid #E9EEF4;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

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

        .cat-card .card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: #F1F5F9;
        }

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

        .cat-card .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .cat-card .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cat-card .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .cat-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-weak);
            padding-top: 12px;
            border-top: 1px solid #F1F5F9;
        }

        .cat-card .card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 280px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
        }

        .topic-card img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }

        .topic-card .topic-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.1) 0%, rgba(15, 23, 42, 0.75) 100%);
            z-index: 1;
        }

        .topic-card .topic-content {
            position: relative;
            z-index: 2;
            padding: 24px;
            color: #FFFFFF;
        }

        .topic-card .topic-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 6px;
            color: #FFFFFF;
        }

        .topic-card .topic-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
        }

        .faq-item {
            border: 1px solid #E9EEF4;
            border-radius: 8px;
            margin-bottom: 12px;
            background: #FFFFFF;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }

        .faq-item.open {
            border-left: 3px solid var(--primary);
        }

        .faq-question {
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color 0.2s ease;
        }

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

        .faq-question i {
            font-size: 14px;
            color: var(--text-weak);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        .subscribe-bar {
            background: linear-gradient(135deg, #FFFFFF 0%, #E2E8F0 100%);
            border-radius: var(--radius-card);
            padding: 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            border: 0.5px solid #E9EEF4;
        }

        .subscribe-bar .sub-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .subscribe-bar .sub-desc {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .subscribe-bar form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .subscribe-bar input {
            padding: 12px 16px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
            background: #FFFFFF;
            color: var(--text-main);
            font-size: 14px;
            min-width: 240px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .subscribe-bar input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
            outline: none;
        }

        .other-cat-section {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
        }

        .other-cat-section .oc-left {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .other-cat-section .oc-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .other-cat-section .oc-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: 6px;
            background: #F8FAFC;
            border: 1px solid #E9EEF4;
            transition: all 0.2s ease;
        }

        .other-cat-section .oc-links a:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .image-placeholder {
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            font-size: 14px;
            border-radius: 8px;
            overflow: hidden;
        }

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

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .data-metric-bar {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .cat-card-list {
                grid-template-columns: 1fr;
            }
            .main-nav .btn-primary {
                display: none;
            }
            .section {
                padding: 48px 0;
            }
            .hero-section-cat h1 {
                font-size: 26px;
            }
            .top-bar {
                height: auto;
                padding: 8px 0;
            }
            .top-bar .container {
                flex-wrap: wrap;
                gap: 6px;
                justify-content: center;
            }
            .top-bar a {
                margin-left: 8px;
            }
            .top-bar .top-left span {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .data-metric-bar {
                grid-template-columns: 1fr;
            }
            .subscribe-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-bar input {
                min-width: 100%;
            }
            .other-cat-section {
                flex-direction: column;
                align-items: flex-start;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-section-cat {
                padding: 28px 0 36px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2B6CB0;
            --primary-hover: #2C5282;
            --primary-light: #EBF4FF;
            --secondary-bg: #E2E8F0;
            --page-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --success: #48BB78;
            --warning: #ED8936;
            --danger: #F56565;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-weak: #94A3B8;
            --border-color: #CBD5E1;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.08);
            --radius-card: 12px;
            --radius-btn: 6px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--page-bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary-hover);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            transition: all 0.2s ease;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 56px 0;
        }
        .section-alt {
            background-color: #F1F5F9;
        }

        .section-title {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.03em;
            background-color: var(--secondary-bg);
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .badge-success {
            background-color: #F0FFF4;
            color: #2F855A;
        }
        .badge-warning {
            background-color: #FFFAF0;
            color: #C05621;
        }

        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            overflow: hidden;
            border: 0.5px solid #E9EEF4;
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.01em;
            line-height: 1.5;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 1px 2px rgba(43, 108, 176, 0.2);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 10px rgba(43, 108, 176, 0.25);
        }
        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
        }
        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-1px);
        }

        .text-link {
            color: var(--primary);
            border-bottom: 1px solid rgba(43, 108, 176, 0.3);
            transition: color 0.2s ease, border-color 0.2s ease;
            font-weight: 500;
        }
        .text-link:hover {
            color: var(--primary-hover);
            border-bottom-color: var(--primary-hover);
        }

        .section-tag {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.03em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 4px;
        }

        .image-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        /* Top Bar */
        .top-bar {
            background-color: #EDF2F7;
            height: 36px;
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .top-bar a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .top-bar a:hover {
            color: var(--primary);
        }
        .top-bar .top-left,
        .top-bar .top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .top-bar .top-right a {
            margin-left: 0;
        }
        .top-bar .divider-dot {
            color: var(--border-color);
            margin: 0 4px;
        }

        /* Navigation */
        .main-nav {
            background-color: #FFFFFF;
            height: 68px;
            border-bottom: 1px solid #E9EEF4;
            position: sticky;
            top: 0;
            z-index: 50;
            display: flex;
            align-items: center;
        }
        .main-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-brand span {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            font-size: 15px;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .nav-cta .btn {
            padding: 10px 20px;
            font-size: 13px;
        }

        /* Mobile nav */
        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--text-secondary);
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
        }
        .nav-toggle:hover {
            color: var(--primary);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 20px 0 8px;
        }
        .breadcrumb {
            font-size: 14px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--border-color);
        }
        .breadcrumb .current {
            color: var(--text-main);
            font-weight: 500;
        }

        /* Category H1 */
        .cat-h1-section {
            padding: 12px 0 8px;
        }
        .cat-h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.5px;
            color: var(--text-main);
            margin: 0;
        }

        /* Category Intro */
        .cat-intro-section {
            padding: 16px 0 40px;
        }
        .cat-intro-box {
            background-color: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            padding: 28px 32px;
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-secondary);
            max-width: 100%;
        }

        /* Score card list */
        .match-list-section {
            padding: 40px 0;
        }
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .match-item {
            display: flex;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .match-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .match-img {
            width: 220px;
            min-height: 160px;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
            background-color: #E2E8F0;
        }
        .match-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .match-content {
            flex: 1;
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 8px;
        }
        .match-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 4px;
        }
        .match-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
        }
        .match-score {
            font-size: 32px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .match-meta {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .match-meta .live-indicator {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--danger);
            font-weight: 500;
        }
        .match-meta .live-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--danger);
            animation: pulse 1.5s infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }

        /* Metrics Bar */
        .metrics-bar-section {
            padding: 40px 0;
        }
        .metrics-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .metric-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            padding: 24px 20px;
            text-align: center;
        }
        .metric-value {
            font-size: 32px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--text-main);
            line-height: 1.2;
        }
        .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        /* Related Topics */
        .topics-section {
            padding: 40px 0;
        }
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .topic-card-large {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 280px;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            cursor: pointer;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .topic-card-large:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .topic-card-large .overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.55) 100%);
        }
        .topic-card-large .topic-content {
            position: relative;
            z-index: 2;
            padding: 28px;
            color: #FFFFFF;
            width: 100%;
        }
        .topic-card-large .topic-title {
            font-size: 22px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 6px;
        }
        .topic-card-large .topic-desc {
            font-size: 14px;
            opacity: 0.9;
            line-height: 1.7;
        }

        /* Subscribe CTA */
        .subscribe-section {
            padding: 40px 0;
        }
        .subscribe-bar {
            background: linear-gradient(135deg, #FFFFFF 0%, #EDF2F7 100%);
            border-radius: var(--radius-card);
            border: 0.5px solid #E9EEF4;
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }
        .subscribe-bar .subscribe-text h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0 0 4px;
        }
        .subscribe-bar .subscribe-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }
        .subscribe-bar form {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-shrink: 0;
        }
        .subscribe-bar input[type="email"] {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 10px 16px;
            font-size: 14px;
            width: 260px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .subscribe-bar input[type="email"]:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
            outline: none;
        }

        /* Other categories entry */
        .other-cats-section {
            padding: 40px 0;
        }
        .other-cats-box {
            background-color: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .other-cats-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .other-cats-left .btn {
            flex-shrink: 0;
        }
        .other-cats-right {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .other-cats-right a {
            font-size: 15px;
            color: var(--primary);
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 4px;
            background-color: var(--primary-light);
            transition: background-color 0.2s ease, color 0.2s ease;
        }
        .other-cats-right a:hover {
            background-color: var(--primary);
            color: #FFFFFF;
        }

        /* FAQ */
        .faq-section {
            padding: 40px 0;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: 8px;
            border: 0.5px solid #E9EEF4;
            overflow: hidden;
            transition: box-shadow 0.2s ease, border-color 0.2s ease;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            background: none;
            border: none;
            text-align: left;
            cursor: pointer;
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 16px;
            color: var(--primary);
            transition: transform 0.25s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.85;
            border-left: 3px solid transparent;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
            border-left-color: var(--primary);
        }

        /* Footer */
        .footer {
            background-color: #1E293B;
            color: #94A3B8;
            padding: 56px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .footer-brand span {
            color: #60A5FA;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .footer h4 {
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer ul a {
            font-size: 14px;
            color: #94A3B8;
            transition: color 0.2s ease;
        }
        .footer ul a:hover {
            color: #60A5FA;
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 8px;
        }
        .footer-subscribe input {
            flex: 1;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 6px;
            padding: 10px 14px;
            font-size: 14px;
            color: #FFFFFF;
            outline: none;
        }
        .footer-subscribe input::placeholder {
            color: #94A3B8;
        }
        .footer-subscribe button {
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
            border-radius: 6px;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            transition: background-color 0.2s ease;
        }
        .footer-subscribe button:hover {
            background-color: var(--primary-hover);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            font-size: 13px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 24px;
            align-items: center;
            justify-content: space-between;
        }
        .footer-bottom-links {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .footer-bottom-links a {
            color: #94A3B8;
        }
        .footer-bottom-links a:hover {
            color: #60A5FA;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .metrics-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .topics-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background-color: #FFFFFF;
                flex-direction: column;
                gap: 0;
                padding: 16px 24px;
                box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
                border-bottom: 1px solid #E9EEF4;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 0;
                border-bottom: 1px solid #F1F5F9;
                width: 100%;
            }
            .nav-links a:last-child {
                border-bottom: none;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background-color: var(--primary-light);
                padding-left: 12px;
                border-radius: 4px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-cta {
                display: none;
            }
            .top-bar .top-right a:not(:first-child) {
                display: none;
            }
            .match-img {
                width: 100%;
                min-height: 180px;
                max-height: 200px;
            }
            .match-item {
                flex-direction: column;
            }
            .match-content {
                padding: 16px 20px;
            }
            .match-score {
                font-size: 28px;
            }
            .subscribe-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-bar form {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-bar input[type="email"] {
                width: 100%;
            }
            .other-cats-box {
                flex-direction: column;
                align-items: flex-start;
            }
            .other-cats-right {
                gap: 10px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cat-h1 {
                font-size: 26px;
            }
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 21px;
            }
        }

        @media (max-width: 520px) {
            .metrics-bar {
                grid-template-columns: 1fr;
            }
            .metric-value {
                font-size: 28px;
            }
            .breadcrumb-section {
                padding: 12px 0 4px;
            }
            .cat-h1 {
                font-size: 24px;
            }
            .cat-intro-box {
                padding: 20px;
                font-size: 15px;
            }
            .match-img {
                min-height: 160px;
            }
            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 14px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 14px;
            }
            .topic-card-large {
                min-height: 220px;
            }
            .topic-card-large .topic-content {
                padding: 20px;
            }
            .subscribe-bar {
                padding: 20px;
            }
            .other-cats-box {
                padding: 20px;
            }
            .footer {
                padding: 40px 0 16px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2B6CB0;
            --primary-hover: #2C5282;
            --primary-light: #EBF4FF;
            --secondary-bg: #E2E8F0;
            --page-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --success: #48BB78;
            --warning: #ED8936;
            --danger: #F56565;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-weak: #94A3B8;
            --border-color: #CBD5E1;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.08);
            --radius-card: 12px;
            --radius-btn: 6px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--page-bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            transition: all 0.2s ease;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background-color: #F1F5F9;
        }
        .section-title {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.03em;
            background-color: var(--secondary-bg);
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .badge-success {
            background-color: #F0FFF4;
            color: #2F855A;
        }
        .badge-warning {
            background-color: #FFFAF0;
            color: #C05621;
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            overflow: hidden;
            border: 0.5px solid #E9EEF4;
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.01em;
            line-height: 1.5;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 1px 2px rgba(43, 108, 176, 0.2);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 10px rgba(43, 108, 176, 0.25);
        }
        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
        }
        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #FFFFFF;
            border: 1px solid rgba(255, 255, 255, 0.4);
        }
        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-1px);
        }
        .text-link {
            color: var(--primary);
            border-bottom: 1px solid rgba(43, 108, 176, 0.3);
            transition: color 0.2s ease, border-color 0.2s ease;
            font-weight: 500;
        }
        .text-link:hover {
            color: var(--primary-hover);
            border-bottom-color: var(--primary-hover);
        }
        .section-tag {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.03em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 4px;
        }
        .image-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        /* Top bar */
        .top-bar {
            background-color: #EDF2F7;
            font-size: 12px;
            color: var(--text-secondary);
            min-height: 36px;
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 36px;
        }
        .top-bar a {
            color: var(--text-secondary);
            text-decoration: none;
        }
        .top-bar a:hover {
            color: var(--primary);
        }
        .top-bar-sep {
            margin: 0 6px;
            color: #CBD5E1;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        /* Main nav */
        .main-header {
            background: #FFFFFF;
            border-bottom: 1px solid #E9EEF4;
            position: sticky;
            top: 0;
            z-index: 50;
            box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
        }
        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
        }
        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .logo span {
            color: var(--primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .main-nav a {
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 4px;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .main-nav a.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            border-radius: 0;
            background: transparent;
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text-main);
            padding: 4px 8px;
        }

        /* Mobile nav */
        .mobile-menu {
            display: none;
            background: #FFFFFF;
            border-bottom: 1px solid #E9EEF4;
            flex-direction: column;
            padding: 12px 24px;
            gap: 8px;
        }
        .mobile-menu a {
            padding: 10px 0;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid #F1F5F9;
        }
        .mobile-menu a.active {
            color: var(--primary);
        }
        .mobile-menu.open {
            display: flex;
        }

        /* Breadcrumb */
        .breadcrumb {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 20px 0 0;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--primary-hover);
        }
        .breadcrumb span {
            margin: 0 6px;
            color: #CBD5E1;
        }
        .breadcrumb .current {
            color: var(--text-weak);
            font-weight: 500;
        }

        /* Category header */
        .category-header {
            padding: 32px 0 40px;
        }
        .category-header h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .category-desc-box {
            max-width: 840px;
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            background: #FFFFFF;
            border: 0.5px solid #E9EEF4;
            border-radius: 10px;
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
        }

        /* Article list cards */
        .article-card {
            display: flex;
            gap: 24px;
            background: #FFFFFF;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            padding: 20px;
            transition: all 0.25s ease;
            margin-bottom: 20px;
        }
        .article-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .article-card.reverse {
            flex-direction: row-reverse;
        }
        .article-img {
            flex: 0 0 240px;
            height: 150px;
            border-radius: 8px;
            overflow: hidden;
            background: #E2E8F0;
        }
        .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .article-body .excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
        }
        .article-meta .tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 4px;
            font-weight: 500;
        }
        .article-meta .date {
            white-space: nowrap;
        }

        /* Metrics strip */
        .metrics-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-item {
            background: #FFFFFF;
            border-radius: 10px;
            border: 0.5px solid #E9EEF4;
            padding: 20px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .metric-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.3;
        }
        .metric-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* Topic cards */
        .topic-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .topic-card {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            min-height: 220px;
            background: #E2E8F0;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            display: block;
        }
        .topic-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .topic-card img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
        }
        .topic-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 28px 24px 20px;
            background: linear-gradient(transparent, rgba(15, 23, 42, 0.72));
            color: #FFFFFF;
        }
        .topic-overlay h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .topic-overlay p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
        }

        /* Subscribe bar */
        .subscribe-bar {
            background: linear-gradient(135deg, #FFFFFF 0%, #E2E8F0 100%);
            border-radius: 12px;
            border: 0.5px solid #E9EEF4;
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            box-shadow: var(--shadow-sm);
        }
        .subscribe-bar h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .subscribe-bar p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }
        .subscribe-form input {
            width: 240px;
            padding: 10px 14px;
            border: 1px solid #CBD5E1;
            border-radius: 6px;
            font-size: 14px;
            background: #FFFFFF;
        }
        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
            outline: none;
        }
        .subscribe-form button {
            padding: 10px 20px;
            border-radius: 6px;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 500;
            border: none;
            white-space: nowrap;
        }
        .subscribe-form button:hover {
            background: var(--primary-hover);
        }

        /* Other categories */
        .other-cats {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            background: #FFFFFF;
            border-radius: 12px;
            border: 0.5px solid #E9EEF4;
            padding: 28px 32px;
            box-shadow: var(--shadow-sm);
            flex-wrap: wrap;
        }
        .other-cats .cats-links {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .other-cats .cats-links a {
            padding: 10px 18px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        .other-cats .cats-links a:hover {
            background: var(--primary);
            color: #FFFFFF;
        }

        /* FAQ */
        .faq-item {
            background: #FFFFFF;
            border-radius: 10px;
            border: 0.5px solid #E9EEF4;
            box-shadow: var(--shadow-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: none;
            border: none;
            text-align: left;
            cursor: pointer;
            transition: all 0.2s ease;
            gap: 16px;
        }
        .faq-question:hover {
            background: #F8FAFC;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 16px;
            color: var(--primary);
            transition: transform 0.3s ease;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
            border-left: 3px solid var(--primary);
            margin-left: 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 12px 20px 18px;
        }

        /* Footer */
        .footer {
            background: #1E293B;
            color: #94A3B8;
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.2);
            margin-bottom: 24px;
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .footer-brand span {
            color: #2B6CB0;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul a {
            font-size: 14px;
            color: #94A3B8;
            transition: color 0.2s ease;
        }
        .footer ul a:hover {
            color: #FFFFFF;
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
        }
        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(148, 163, 184, 0.3);
            border-radius: 6px;
            color: #FFFFFF;
            font-size: 14px;
        }
        .footer-subscribe input::placeholder {
            color: #64748B;
        }
        .footer-subscribe input:focus {
            border-color: #2B6CB0;
            outline: none;
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.2);
        }
        .footer-subscribe button {
            padding: 10px 18px;
            background: #2B6CB0;
            color: #FFFFFF;
            border: none;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
        }
        .footer-subscribe button:hover {
            background: #2C5282;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: #64748B;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-bottom-links a {
            color: #94A3B8;
        }
        .footer-bottom-links a:hover {
            color: #FFFFFF;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .main-nav {
                gap: 0;
            }
            .main-nav a {
                padding: 8px 10px;
                font-size: 14px;
            }
            .article-img {
                flex: 0 0 200px;
                height: 130px;
            }
        }
        @media (max-width: 820px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .nav-cta {
                display: none;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            .article-card {
                flex-direction: column !important;
            }
            .article-img {
                flex: none;
                width: 100%;
                height: 180px;
            }
            .metrics-strip {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-bar {
                flex-direction: column;
                text-align: center;
                padding: 24px;
            }
            .subscribe-form {
                width: 100%;
                flex-direction: column;
            }
            .subscribe-form input {
                width: 100%;
            }
            .other-cats {
                flex-direction: column;
                text-align: center;
                padding: 20px;
            }
            .other-cats .cats-links {
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 640px) {
            .section {
                padding: 48px 0;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .top-bar-right {
                gap: 8px;
                font-size: 11px;
            }
            .top-bar-left .divider-dot {
                display: none;
            }
            .top-bar-left .update-text {
                display: none;
            }
            .metrics-strip {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .article-body h3 {
                font-size: 16px;
            }
            .article-body .excerpt {
                font-size: 13px;
            }
            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 14px;
                margin-left: 16px;
                padding: 0 16px;
            }
            .faq-item.active .faq-answer {
                padding: 10px 16px 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2B6CB0;
            --primary-hover: #2C5282;
            --primary-light: #EBF4FF;
            --secondary-bg: #E2E8F0;
            --page-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --success: #48BB78;
            --warning: #ED8936;
            --danger: #F56565;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-weak: #94A3B8;
            --border-color: #CBD5E1;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.08);
            --radius-card: 12px;
            --radius-btn: 6px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--page-bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        * {
            box-sizing: border-box;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            transition: all 0.2s ease;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 64px 0;
        }

        .section-alt {
            background-color: #F1F5F9;
        }

        .section-title {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.03em;
            background-color: var(--secondary-bg);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-success {
            background-color: #F0FFF4;
            color: #2F855A;
        }

        .badge-warning {
            background-color: #FFFAF0;
            color: #C05621;
        }

        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            overflow: hidden;
            border: 0.5px solid #E9EEF4;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.01em;
            line-height: 1.5;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 1px 2px rgba(43, 108, 176, 0.2);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 10px rgba(43, 108, 176, 0.25);
        }

        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
        }

        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-1px);
        }

        .text-link {
            color: var(--primary);
            border-bottom: 1px solid rgba(43, 108, 176, 0.3);
            transition: color 0.2s ease, border-color 0.2s ease;
            font-weight: 500;
        }

        .text-link:hover {
            color: var(--primary-hover);
            border-bottom-color: var(--primary-hover);
        }

        .top-bar {
            background-color: #EDF2F7;
            font-size: 12px;
            padding: 8px 0;
            border-bottom: 0.5px solid var(--secondary-bg);
        }

        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .top-bar a {
            color: var(--text-secondary);
        }

        .top-bar a:hover {
            color: var(--primary);
        }

        .top-left {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-weak);
        }

        .top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .main-header {
            background-color: #FFFFFF;
            border-bottom: 0.5px solid var(--secondary-bg);
            position: sticky;
            top: 0;
            z-index: 100;
            height: 68px;
            display: flex;
            align-items: center;
        }

        .main-header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
        }

        .logo span {
            color: var(--primary);
        }

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

        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding-bottom: 4px;
            transition: color 0.2s ease;
        }

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

        .nav-links a.active {
            color: var(--primary);
        }

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

        .nav-cta {
            margin-left: 16px;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-main);
            padding: 4px;
        }

        .mobile-menu {
            display: none;
            background-color: #FFFFFF;
            border-bottom: 0.5px solid var(--secondary-bg);
            padding: 16px 24px;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 0;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 0.5px solid #F1F5F9;
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

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

        .breadcrumb {
            font-size: 14px;
            color: var(--text-weak);
            padding: 24px 0 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb a {
            color: var(--primary);
        }

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

        .breadcrumb .separator {
            color: var(--text-weak);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--text-weak);
            cursor: default;
        }

        .category-hero {
            position: relative;
            padding: 56px 0 48px;
            background: linear-gradient(135deg, #FFFFFF 0%, #E2E8F0 100%);
            clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
            margin-bottom: 32px;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.3;
            color: var(--text-main);
            margin: 0 0 12px;
        }

        .category-hero .h1-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.85;
            margin: 0;
        }

        .report-list-item {
            display: flex;
            flex-direction: row;
            align-items: stretch;
            gap: 24px;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            margin-bottom: 24px;
            border: 0.5px solid #E9EEF4;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .report-list-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .report-list-item .report-img {
            flex: 0 0 320px;
            height: 220px;
            position: relative;
            overflow: hidden;
            background-color: #E2E8F0;
        }

        .report-list-item .report-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        .report-list-item .report-body {
            flex: 1;
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .report-list-item .report-title {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-main);
            margin: 0 0 8px;
        }

        .report-list-item .report-summary {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0 0 16px;
        }

        .report-list-item .report-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .report-tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
            background-color: var(--primary-light);
            color: var(--primary);
            line-height: 1.5;
            width: fit-content;
        }

        .metric-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            border: 0.5px solid #E9EEF4;
        }

        .metric-item {
            text-align: center;
        }

        .metric-item .metric-value {
            font-size: 32px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--primary);
            line-height: 1.3;
        }

        .metric-item .metric-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 240px;
            display: flex;
            align-items: flex-end;
        }

        .topic-card img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .topic-card .topic-overlay {
            position: relative;
            z-index: 1;
            padding: 28px;
            background: linear-gradient(0deg, rgba(15, 23, 42, 0.75) 0%, rgba(15, 23, 42, 0.15) 100%);
            width: 100%;
            min-height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            color: #FFFFFF;
        }

        .topic-card .topic-title {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: #FFFFFF;
        }

        .topic-card .topic-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
        }

        .subscribe-bar {
            background: linear-gradient(135deg, #FFFFFF 0%, #E2E8F0 100%);
            border-radius: var(--radius-card);
            border: 0.5px solid #E9EEF4;
            padding: 32px 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .subscribe-bar .subscribe-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0;
        }

        .subscribe-bar .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .subscribe-bar input[type="email"] {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 10px 16px;
            font-size: 14px;
            width: 280px;
            min-width: 220px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .subscribe-bar input[type="email"]:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
        }

        .other-categories {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
        }

        .other-category-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: var(--radius-btn);
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.2s ease;
        }

        .other-category-link:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: 10px;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.25s ease;
        }

        .faq-item.open {
            box-shadow: var(--shadow-hover);
            border-left: 3px solid var(--primary);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            transition: color 0.2s ease;
        }

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

        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--text-weak);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            margin: 0;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        .footer {
            background-color: #1E293B;
            color: #94A3B8;
            padding: 56px 0 24px;
        }

        .footer .container {
            max-width: 1200px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .footer-brand span {
            color: #60A5FA;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.85;
            color: #94A3B8;
            margin-bottom: 16px;
        }

        .footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

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

        .footer ul li {
            margin-bottom: 10px;
        }

        .footer ul a {
            color: #94A3B8;
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .footer ul a:hover {
            color: #60A5FA;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
        }

        .footer-subscribe input {
            flex: 1;
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-btn);
            padding: 10px 14px;
            font-size: 14px;
            color: #FFFFFF;
            outline: none;
            transition: border-color 0.2s ease;
        }

        .footer-subscribe input:focus {
            border-color: #60A5FA;
        }

        .footer-subscribe input::placeholder {
            color: #64748B;
        }

        .footer-subscribe button {
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 500;
            transition: background-color 0.2s ease;
        }

        .footer-subscribe button:hover {
            background-color: var(--primary-hover);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            padding-top: 20px;
            border-top: 0.5px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
        }

        .footer-bottom-links {
            display: flex;
            gap: 8px;
            align-items: center;
            color: #64748B;
        }

        .footer-bottom-links a {
            color: #94A3B8;
        }

        .footer-bottom-links a:hover {
            color: #60A5FA;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 16px;
            }
            .nav-links a {
                font-size: 13px;
            }
            .report-list-item .report-img {
                flex: 0 0 240px;
                height: 200px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .category-hero {
                padding: 40px 0 36px;
                clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .report-list-item {
                flex-direction: column;
            }
            .report-list-item .report-img {
                flex: initial;
                width: 100%;
                height: 200px;
            }
            .report-list-item .report-body {
                padding: 20px;
            }
            .metric-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                padding: 20px 16px;
            }
            .metric-item .metric-value {
                font-size: 26px;
            }
            .subscribe-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-bar input[type="email"] {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .top-right {
                display: none;
            }
            .top-left {
                justify-content: center;
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 20px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .category-hero .h1-sub {
                font-size: 14px;
            }
            .metric-strip {
                grid-template-columns: 1fr;
            }
            .subscribe-bar {
                padding: 20px 16px;
            }
            .report-list-item .report-img {
                height: 160px;
            }
            .report-list-item .report-title {
                font-size: 17px;
            }
            .other-categories {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #2B6CB0;
            --primary-hover: #2C5282;
            --primary-light: #EBF4FF;
            --secondary-bg: #E2E8F0;
            --page-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --success: #48BB78;
            --warning: #ED8936;
            --danger: #F56565;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-weak: #94A3B8;
            --border-color: #CBD5E1;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.08);
            --radius-card: 12px;
            --radius-btn: 6px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--page-bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            transition: all 0.2s ease;
        }
        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background-color: #F1F5F9;
        }
        .section-tag {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.03em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 4px;
        }
        .section-title {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.03em;
            background-color: var(--secondary-bg);
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .badge-success {
            background-color: #F0FFF4;
            color: #2F855A;
        }
        .badge-warning {
            background-color: #FFFAF0;
            color: #C05621;
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            overflow: hidden;
            border: 0.5px solid #E9EEF4;
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.01em;
            line-height: 1.5;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 1px 2px rgba(43, 108, 176, 0.2);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 10px rgba(43, 108, 176, 0.25);
        }
        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
        }
        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-1px);
        }
        .text-link {
            color: var(--primary);
            border-bottom: 1px solid rgba(43, 108, 176, 0.3);
            transition: color 0.2s ease, border-color 0.2s ease;
            font-weight: 500;
        }
        .text-link:hover {
            color: var(--primary-hover);
            border-bottom-color: var(--primary-hover);
        }
        /* 顶部信息条 */
        .top-bar {
            background-color: #EDF2F7;
            font-size: 12px;
            color: var(--text-secondary);
            height: 36px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #E2E8F0;
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .top-bar a {
            color: var(--text-secondary);
            margin-left: 16px;
            font-size: 12px;
        }
        .top-bar a:hover {
            color: var(--primary);
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 12px;
            white-space: nowrap;
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        /* 主导航 */
        .main-header {
            background-color: #FFFFFF;
            height: 68px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #E9EEF4;
            position: sticky;
            top: 0;
            z-index: 40;
            box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
        }
        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            gap: 16px;
        }
        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo span {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 4px 2px;
            border-bottom: 2px solid transparent;
            transition: color 0.2s ease, border-color 0.2s ease;
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text-main);
            padding: 4px;
        }
        /* 面包屑 */
        .breadcrumb {
            font-size: 14px;
            color: var(--text-weak);
            padding: 20px 0 0;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            margin: 0 8px;
            color: var(--text-weak);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }
        /* 分类页头 */
        .category-header {
            padding: 32px 0 24px;
            border-bottom: 1px solid #E9EEF4;
            margin-bottom: 48px;
        }
        .category-header h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.3;
            color: var(--text-main);
            margin: 0 0 12px;
        }
        .category-header p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 800px;
            margin: 0;
        }
        /* 纵向卡片列表 */
        .data-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .data-list-item {
            display: flex;
            gap: 24px;
            padding: 20px;
            align-items: flex-start;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .data-list-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .data-list-thumb {
            flex-shrink: 0;
            width: 280px;
            aspect-ratio: 16/9;
            border-radius: 8px;
            overflow: hidden;
            background-color: #EDF2F7;
            position: relative;
        }
        .data-list-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .data-list-content {
            flex: 1;
            min-width: 0;
        }
        .data-list-content .item-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }
        .data-list-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0 0 8px;
            line-height: 1.5;
        }
        .data-list-content p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0 0 8px;
            line-height: 1.75;
        }
        .data-list-content .item-meta {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .data-list-content .item-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
        }
        /* 指标条 */
        .metric-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .metric-item {
            background: var(--card-bg);
            border: 0.5px solid #E9EEF4;
            border-radius: 10px;
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .metric-item .metric-value {
            font-size: 30px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .metric-item .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .metric-item .metric-badge {
            display: inline-block;
            font-size: 12px;
            color: var(--success);
            background: #F0FFF4;
            padding: 2px 8px;
            border-radius: 4px;
            margin-bottom: 8px;
            font-weight: 500;
        }
        /* 相关专题双卡 */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .topic-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            background-color: #1E293B;
            box-shadow: var(--shadow-sm);
            min-height: 220px;
            display: flex;
            align-items: flex-end;
        }
        .topic-card img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.55;
        }
        .topic-card .topic-overlay {
            position: relative;
            z-index: 1;
            padding: 24px;
            color: #FFFFFF;
            width: 100%;
            background: linear-gradient(transparent, rgba(15, 23, 42, 0.7));
        }
        .topic-card .topic-badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
            margin-bottom: 8px;
        }
        .topic-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .topic-card p {
            font-size: 14px;
            color: rgba(255,255,255,0.85);
            margin: 0;
            line-height: 1.7;
        }
        /* 订阅横条 */
        .subscribe-bar {
            background: linear-gradient(135deg, #FFFFFF 0%, #EBF4FF 100%);
            border: 0.5px solid #E9EEF4;
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            box-shadow: var(--shadow-sm);
        }
        .subscribe-bar h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--text-main);
        }
        .subscribe-bar p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .subscribe-form input[type="email"] {
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            min-width: 240px;
            background: #FFFFFF;
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
            outline: none;
        }
        /* 其他分类入口 */
        .other-categories {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            background: var(--card-bg);
            border: 0.5px solid #E9EEF4;
            border-radius: var(--radius-card);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
        }
        .other-categories .left {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
        }
        .other-categories .left i {
            color: var(--primary);
            font-size: 20px;
        }
        .other-categories .right {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }
        .other-categories .cat-chip {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 14px;
            background: var(--page-bg);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-weight: 500;
            transition: all 0.2s ease;
        }
        .other-categories .cat-chip:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }
        /* FAQ手风琴 */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 0.5px solid #E9EEF4;
            border-radius: 8px;
            background: var(--card-bg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .faq-item summary {
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.2s ease;
        }
        .faq-item summary:hover {
            background: #F8FAFC;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            color: var(--primary);
            font-size: 14px;
            transition: transform 0.3s ease;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-body {
            padding: 0 20px 16px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-left: 3px solid var(--primary);
            margin-left: 20px;
        }
        .faq-item[open] summary {
            border-bottom: 1px solid #EDF2F7;
        }
        /* 页脚 */
        .footer {
            background-color: #1E293B;
            color: #94A3B8;
            padding: 56px 0 28px;
            margin-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .footer-brand span {
            color: #60A5FA;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: #94A3B8;
            max-width: 300px;
            margin-bottom: 16px;
        }
        .footer h4 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 14px;
        }
        .footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer ul li {
            margin-bottom: 8px;
        }
        .footer ul a {
            color: #94A3B8;
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .footer ul a:hover {
            color: #FFFFFF;
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-subscribe input {
            padding: 10px 14px;
            border: 1px solid #475569;
            border-radius: 6px;
            background: #0F172A;
            color: #E2E8F0;
            font-size: 14px;
            flex: 1;
            min-width: 140px;
        }
        .footer-subscribe input::placeholder {
            color: #64748B;
        }
        .footer-subscribe button {
            padding: 10px 18px;
            background: var(--primary);
            color: #FFFFFF;
            border: none;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: background 0.2s ease;
        }
        .footer-subscribe button:hover {
            background: var(--primary-hover);
        }
        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: #64748B;
        }
        .footer-bottom a {
            color: #94A3B8;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: #FFFFFF;
        }
        .footer-bottom-links {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .metric-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .data-list-thumb {
                width: 220px;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                padding: 16px 24px;
                gap: 12px;
                border-bottom: 1px solid #E9EEF4;
                box-shadow: 0 8px 16px rgba(15, 23, 42, 0.06);
                z-index: 50;
            }
            .nav-links.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .nav-cta {
                display: none;
            }
            .main-header .container {
                flex-wrap: wrap;
            }
            .top-bar .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                padding-top: 4px;
                padding-bottom: 4px;
            }
            .top-bar {
                height: auto;
                min-height: 36px;
                padding: 4px 0;
            }
            .top-bar-right a {
                margin-left: 0;
                margin-right: 12px;
            }
            .metric-bar {
                grid-template-columns: 1fr;
            }
            .data-list-item {
                flex-direction: column;
            }
            .data-list-thumb {
                width: 100%;
            }
            .subscribe-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form input[type="email"] {
                min-width: 100%;
            }
            .other-categories {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .category-header h1 {
                font-size: 26px;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 48px 0;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 20px;
            }
            .data-list-item {
                padding: 14px;
            }
            .subscribe-bar {
                padding: 20px;
            }
            .topic-card {
                min-height: 180px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #2B6CB0;
            --primary-hover: #2C5282;
            --primary-light: #EBF4FF;
            --secondary-bg: #E2E8F0;
            --page-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --success: #48BB78;
            --warning: #ED8936;
            --danger: #F56565;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-weak: #94A3B8;
            --border-color: #CBD5E1;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.08);
            --radius-card: 12px;
            --radius-btn: 6px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--page-bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            transition: all 0.2s ease;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background-color: #F1F5F9;
        }
        .section-tag {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.03em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 4px;
        }
        .section-title {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.03em;
            background-color: var(--secondary-bg);
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .badge-success {
            background-color: #F0FFF4;
            color: #2F855A;
        }
        .badge-warning {
            background-color: #FFFAF0;
            color: #C05621;
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            overflow: hidden;
            border: 0.5px solid #E9EEF4;
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.01em;
            line-height: 1.5;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 1px 2px rgba(43, 108, 176, 0.2);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 10px rgba(43, 108, 176, 0.25);
        }
        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
        }
        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-1px);
        }
        .text-link {
            color: var(--primary);
            border-bottom: 1px solid rgba(43, 108, 176, 0.3);
            transition: color 0.2s ease, border-color 0.2s ease;
            font-weight: 500;
        }
        .text-link:hover {
            color: var(--primary-hover);
            border-bottom-color: var(--primary-hover);
        }
        .top-bar {
            background-color: #EDF2F7;
            min-height: 36px;
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px 12px;
            padding-top: 4px;
            padding-bottom: 4px;
        }
        .top-bar a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .top-bar a:hover {
            color: var(--primary);
        }
        .header-main {
            background-color: #FFFFFF;
            border-bottom: 1px solid #E9EEF4;
            position: sticky;
            top: 0;
            z-index: 40;
            min-height: 68px;
            display: flex;
            align-items: center;
        }
        .header-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo {
            display: flex;
            align-items: center;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo span {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .nav-links li a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            white-space: nowrap;
            border-bottom: 2px solid transparent;
            transition: color 0.2s ease, border-color 0.2s ease;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text-main);
            cursor: pointer;
            padding: 4px 8px;
        }
        .mobile-menu {
            display: none;
            background-color: #FFFFFF;
            border-bottom: 1px solid #E9EEF4;
            padding: 12px 24px 16px;
            list-style: none;
            margin: 0;
        }
        .mobile-menu li {
            padding: 8px 0;
        }
        .mobile-menu li a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
        }
        .mobile-menu li a.active {
            color: var(--primary);
        }
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .mobile-menu-btn {
                display: inline-flex;
            }
        }
        @media (min-width: 1025px) {
            .mobile-menu {
                display: none !important;
            }
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            flex-wrap: wrap;
            padding: 20px 0 0;
        }
        .breadcrumb a {
            color: var(--primary);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary-hover);
        }
        .breadcrumb span {
            color: var(--text-weak);
        }
        .category-hero {
            padding: 24px 0 32px;
            background: linear-gradient(135deg, #FFFFFF 0%, #F1F5F9 100%);
            border-bottom: 1px solid #E9EEF4;
        }
        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.3;
            color: var(--text-main);
            margin: 12px 0 8px;
        }
        .category-hero .lead {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 780px;
        }
        .service-card {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-bottom: 32px;
            overflow: hidden;
            border-radius: var(--radius-card);
            background: var(--card-bg);
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .service-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .service-card .service-card-image {
            position: relative;
            aspect-ratio: 16/9;
            background-color: #E2E8F0;
            overflow: hidden;
            min-height: 220px;
        }
        .service-card .service-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }
        .service-card .service-card-body {
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
        }
        @media (min-width: 768px) {
            .service-card {
                flex-direction: row;
            }
            .service-card.service-card-reverse {
                flex-direction: row-reverse;
            }
            .service-card .service-card-image {
                width: 45%;
                aspect-ratio: auto;
                min-height: 260px;
            }
            .service-card .service-card-body {
                width: 55%;
                padding: 28px 32px;
            }
        }
        .metric-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-item {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 20px 24px;
            border: 0.5px solid #E9EEF4;
            box-shadow: var(--shadow-sm);
            text-align: center;
        }
        .metric-item .metric-value {
            font-size: 30px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--primary);
            line-height: 1.2;
        }
        .metric-item .metric-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .metric-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .metric-bar {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }
        .topic-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .topic-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .topic-card .topic-card-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .topic-card .topic-card-overlay {
            position: relative;
            z-index: 2;
            padding: 28px;
            background: linear-gradient(0deg, rgba(15, 23, 42, 0.82) 0%, rgba(15, 23, 42, 0.35) 60%, transparent 100%);
            width: 100%;
            color: #FFFFFF;
            border-radius: var(--radius-card);
        }
        .topic-card .topic-card-overlay h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
            color: #FFFFFF;
        }
        .topic-card .topic-card-overlay p {
            font-size: 14px;
            color: #E2E8F0;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .topic-card .topic-card-overlay a {
            color: #FFFFFF;
            border-bottom: 1px solid rgba(255, 255, 255, 0.5);
            font-size: 14px;
            font-weight: 500;
        }
        .subscribe-banner {
            background: linear-gradient(135deg, #FFFFFF 0%, #E2E8F0 100%);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            border: 1px solid #E9EEF4;
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: flex-start;
        }
        @media (min-width: 768px) {
            .subscribe-banner {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                gap: 24px;
            }
        }
        .subscribe-banner .subscribe-form {
            display: flex;
            gap: 12px;
            width: 100%;
            max-width: 420px;
        }
        .subscribe-banner .subscribe-form input {
            flex: 1;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            background: #FFFFFF;
            font-size: 14px;
            min-width: 0;
        }
        .subscribe-banner .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
            outline: none;
        }
        @media (max-width: 520px) {
            .subscribe-banner {
                padding: 20px;
            }
            .subscribe-banner .subscribe-form {
                flex-direction: column;
            }
        }
        .category-nav-others {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
        }
        .category-nav-others .other-links {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .category-nav-others .other-links a {
            font-size: 14px;
            color: var(--text-secondary);
            background: #FFFFFF;
            border: 1px solid #E9EEF4;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
        }
        .category-nav-others .other-links a:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-light);
        }
        .faq-item {
            background: #FFFFFF;
            border-radius: 10px;
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 0.5px solid #E9EEF4;
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            line-height: 1.5;
        }
        .faq-question .faq-icon {
            font-size: 16px;
            color: var(--primary);
            transition: transform 0.25s ease;
            flex-shrink: 0;
        }
        .faq-item.faq-open .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-left: 3px solid transparent;
        }
        .faq-item.faq-open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
            border-left-color: var(--primary);
        }
        .footer {
            background-color: #1E293B;
            color: #94A3B8;
            padding: 48px 0 24px;
            font-size: 14px;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .footer .footer-brand span {
            color: #7FB3E5;
        }
        .footer .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer ul li {
            margin-bottom: 8px;
        }
        .footer ul li a {
            color: #94A3B8;
            transition: color 0.2s ease;
            font-size: 14px;
        }
        .footer ul li a:hover {
            color: #FFFFFF;
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
        }
        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            border: 1px solid #475569;
            border-radius: var(--radius-btn);
            background: #0F172A;
            color: #E2E8F0;
            font-size: 13px;
            min-width: 0;
        }
        .footer-subscribe input:focus {
            border-color: #7FB3E5;
            outline: none;
            box-shadow: 0 0 0 3px rgba(127, 179, 229, 0.2);
        }
        .footer-subscribe button {
            padding: 10px 18px;
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
        }
        .footer-subscribe button:hover {
            background-color: var(--primary-hover);
        }
        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: #94A3B8;
        }
        .footer-bottom-links {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .footer-bottom-links a {
            color: #94A3B8;
        }
        .footer-bottom-links a:hover {
            color: #FFFFFF;
        }
        @media (max-width: 768px) {
            .footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-subscribe {
                flex-direction: column;
            }
        }
        .section {
            padding: 56px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .category-hero h1 {
                font-size: 28px;
            }
        }