/* roulang page: index */
:root {
            --brand-blue: #0F4C81;
            --brand-deep: #0B3C6D;
            --brand-orange: #F26B38;
            --bg-light: #F5F8FC;
            --card-white: #FFFFFF;
            --text-main: #162A41;
            --text-sub: #4B5C6E;
            --text-weak: #7A8A99;
            --border-color: rgba(15, 42, 65, 0.08);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 24px rgba(11, 60, 109, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(11, 60, 109, 0.14);
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.75;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            padding-bottom: 80px;
        }

        main {
            flex: 1;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }

        a:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }

        a:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* Header / Navigation */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.25s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(11, 60, 109, 0.08);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
        }

        .nav-logo:hover {
            text-decoration: none;
            color: var(--brand-deep);
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-blue) 0%, #0F4C81 60%, var(--brand-deep) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--brand-deep);
            text-decoration: none;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 60, 109, 0.25);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(11, 60, 109, 0.15);
        }

        .nav-cta-icon {
            font-size: 18px;
            line-height: 1;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--brand-deep);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(11, 60, 109, 0.28);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-blue);
            font-weight: 600;
            font-size: 16px;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--brand-blue);
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(15, 76, 129, 0.06);
            color: var(--brand-deep);
            border-color: var(--brand-deep);
            text-decoration: none;
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            color: var(--brand-blue);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .btn-ghost:hover {
            background: rgba(15, 76, 129, 0.06);
            color: var(--brand-deep);
            text-decoration: none;
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/1135c87120c5f22d.webp');
            background-size: cover;
            background-position: center 30%;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 60, 109, 0.92) 0%, rgba(15, 76, 129, 0.82) 45%, rgba(11, 60, 109, 0.68) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0;
            max-width: 720px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            backdrop-filter: blur(4px);
            margin-bottom: 20px;
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-orange);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(242, 107, 56, 0.6);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(242, 107, 56, 0);
            }
        }

        .hero-title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 620px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .hero-btn-orange {
            background: var(--brand-orange);
            color: #fff;
        }

        .hero-btn-orange:hover {
            background: #d95c2b;
        }

        .hero-play-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-weight: 500;
            font-size: 15px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease;
            text-decoration: none;
        }

        .hero-play-btn:hover {
            background: rgba(255, 255, 255, 0.24);
            text-decoration: none;
            color: #fff;
            transform: translateY(-1px);
        }

        .hero-play-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: #fff;
            color: var(--brand-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 40px;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-value {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        /* Section base */
        .section {
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .section-alt {
            background: #fff;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-orange);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
            max-width: 680px;
            margin-bottom: 40px;
        }

        /* Cards */
        .card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.25s ease, border-color 0.3s ease;
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(15, 76, 129, 0.2);
            transform: translateY(-3px);
        }

        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .card-body {
            padding: 20px 24px;
        }

        .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-deep);
            margin-bottom: 8px;
        }

        .card-text {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-sub);
        }

        /* Badge / Tag */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            background: rgba(15, 76, 129, 0.08);
            color: var(--brand-blue);
            white-space: nowrap;
        }

        .badge-orange {
            background: rgba(242, 107, 56, 0.12);
            color: var(--brand-orange);
        }

        .badge-green {
            background: rgba(23, 138, 94, 0.1);
            color: #178A5E;
        }

        /* Feature cards */
        .feature-card {
            padding: 28px 26px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .feature-icon-blue {
            background: rgba(15, 76, 129, 0.1);
            color: var(--brand-blue);
        }

        .feature-icon-orange {
            background: rgba(242, 107, 56, 0.1);
            color: var(--brand-orange);
        }

        .feature-icon-green {
            background: rgba(23, 138, 94, 0.1);
            color: #178A5E;
        }

        .feature-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--brand-deep);
            margin-bottom: 8px;
        }

        .feature-text {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-sub);
            flex-grow: 1;
        }

        /* List / News */
        .news-item {
            display: flex;
            gap: 20px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 20px;
            transition: box-shadow 0.3s ease, transform 0.25s ease;
            margin-bottom: 16px;
        }

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

        .news-img {
            width: 180px;
            min-height: 120px;
            border-radius: 12px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .news-content {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-date {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 4px;
        }

        .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--brand-deep);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-summary {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-sub);
            flex-grow: 1;
            margin-bottom: 8px;
        }

        .news-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-blue);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            align-self: flex-start;
        }

        .news-link:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }

        /* FAQ accordion */
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.25s ease;
        }

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

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

        .faq-question:hover {
            background: rgba(15, 76, 129, 0.04);
        }

        .faq-toggle {
            font-size: 20px;
            color: var(--brand-blue);
            flex-shrink: 0;
            transition: transform 0.25s ease;
            line-height: 1;
        }

        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.2s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-sub);
        }

        /* Comparison table */
        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
        }

        .compare-table th,
        .compare-table td {
            padding: 16px 20px;
            text-align: left;
            font-size: 14px;
            line-height: 1.6;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-table th {
            background: rgba(15, 76, 129, 0.04);
            font-weight: 700;
            color: var(--brand-deep);
            font-size: 15px;
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        .compare-table .highlight-col {
            background: rgba(242, 107, 56, 0.04);
        }

        /* Footer */
        .site-footer {
            background: var(--brand-deep);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 32px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

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

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }

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

        /* Bottom fixed CTA */
        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-color);
            box-shadow: 0 -4px 20px rgba(11, 60, 109, 0.1);
            z-index: 90;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            min-height: 64px;
        }

        .bottom-cta-text {
            font-size: 15px;
            font-weight: 600;
            color: var(--brand-deep);
            white-space: nowrap;
        }

        .bottom-cta-text span {
            color: var(--brand-orange);
        }

        .bottom-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-orange);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 26px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            text-decoration: none;
            white-space: nowrap;
            transition: background 0.25s ease, transform 0.2s ease;
        }

        .bottom-cta-btn:hover {
            background: #d95c2b;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 38px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-img {
                width: 140px;
                min-height: 100px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 70px;
                font-size: 15px;
            }
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .nav-wrapper {
                height: 60px;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 14px;
            }
            .hero-section {
                min-height: 480px;
            }
            .hero-content {
                padding: 56px 0;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-desc {
                font-size: 15px;
                line-height: 1.7;
            }
            .hero-stats-row {
                gap: 20px;
                margin-top: 28px;
            }
            .hero-stat-value {
                font-size: 22px;
            }
            .section-title {
                font-size: 26px;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-img {
                width: 100%;
                min-height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .bottom-cta-bar {
                padding: 10px 16px;
                min-height: 56px;
                gap: 12px;
            }
            .bottom-cta-text {
                font-size: 13px;
                white-space: normal;
            }
            .bottom-cta-btn {
                padding: 8px 18px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 26px;
                line-height: 1.3;
            }
            .hero-desc {
                font-size: 14px;
                line-height: 1.65;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
            }
            .hero-play-btn,
            .hero-btn-orange {
                justify-content: center;
            }
            .hero-stats-row {
                flex-wrap: wrap;
                gap: 16px;
            }
            .hero-stat-value {
                font-size: 20px;
            }
            .section-title {
                font-size: 22px;
                line-height: 1.35;
            }
            .section-desc {
                font-size: 14px;
            }
            .feature-card {
                padding: 20px 18px;
            }
            .bottom-cta-bar {
                flex-direction: column;
                gap: 8px;
                padding: 10px 14px;
            }
            .bottom-cta-btn {
                width: 100%;
                justify-content: center;
            }
            .news-summary {
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
            --brand-blue: #0F4C81;
            --brand-deep: #0B3C6D;
            --brand-orange: #F26B38;
            --bg-light: #F5F8FC;
            --card-white: #FFFFFF;
            --text-main: #162A41;
            --text-sub: #4B5C6E;
            --text-weak: #7A8A99;
            --border-color: rgba(15, 42, 65, 0.08);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 24px rgba(11, 60, 109, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(11, 60, 109, 0.14);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.75;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
        }

        main {
            flex: 1;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease, background-color 0.2s ease;
        }

        a:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }

        a:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* Header / Navigation */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.25s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(11, 60, 109, 0.08);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .nav-logo:hover {
            text-decoration: none;
            color: var(--brand-deep);
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-blue) 0%, #0F4C81 60%, var(--brand-deep) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--brand-deep);
            text-decoration: none;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 60, 109, 0.25);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(11, 60, 109, 0.15);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            padding: 20px 0 12px;
        }

        .breadcrumb a {
            color: var(--text-sub);
            font-weight: 500;
        }

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

        .breadcrumb-sep {
            color: var(--text-weak);
        }

        .breadcrumb-current {
            color: var(--brand-blue);
            font-weight: 600;
        }

        /* Compact title area */
        .category-header {
            padding: 28px 0 32px;
        }

        .category-header h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            margin: 0 0 12px;
            letter-spacing: -0.5px;
        }

        .category-header .category-desc {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 780px;
            line-height: 1.85;
            margin: 0;
        }

        /* Section titles */
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin: 0 0 12px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 720px;
            line-height: 1.8;
            margin: 0 0 32px;
        }

        /* Cards grid */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .team-card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            display: flex;
            flex-direction: column;
        }

        .team-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(15, 76, 129, 0.2);
        }

        .team-card-img-wrap {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-light);
        }

        .team-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .team-card:hover .team-card-img-wrap img {
            transform: scale(1.03);
        }

        .team-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .team-card-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(15, 76, 129, 0.08);
            color: var(--brand-blue);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .team-card h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.4;
            margin: 0 0 8px;
            color: var(--text-main);
        }

        .team-card-summary {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }

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

        /* Data ranking table */
        .ranking-card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 28px;
        }

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

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(15, 42, 65, 0.06);
        }

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

        .ranking-rank {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
            background: var(--bg-light);
            color: var(--text-sub);
        }

        .ranking-rank.top1 {
            background: var(--brand-orange);
            color: #fff;
        }

        .ranking-rank.top2 {
            background: var(--brand-blue);
            color: #fff;
        }

        .ranking-rank.top3 {
            background: rgba(242, 107, 56, 0.15);
            color: var(--brand-orange);
        }

        .ranking-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-name {
            font-weight: 600;
            font-size: 15px;
            color: var(--text-main);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-desc {
            font-size: 13px;
            color: var(--text-weak);
        }

        .ranking-value {
            font-weight: 700;
            font-size: 16px;
            color: var(--brand-blue);
            white-space: nowrap;
        }

        /* Deep content */
        .deep-content {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 36px 40px;
        }

        .deep-content h3 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.4;
            margin: 0 0 16px;
            color: var(--text-main);
        }

        .deep-content p {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.9;
            margin: 0 0 16px;
        }

        .deep-content p:last-child {
            margin-bottom: 0;
        }

        /* Featured topics */
        .topic-scroll {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }

        .topic-card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 24px;
            display: flex;
            flex-direction: column;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

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

        .topic-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-main);
        }

        .topic-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }

        .topic-link {
            font-weight: 600;
            font-size: 14px;
            color: var(--brand-blue);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topic-link:hover {
            color: var(--brand-deep);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color 0.25s ease;
        }

        .faq-item:hover {
            border-color: rgba(15, 76, 129, 0.2);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color 0.2s ease;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--brand-blue);
            transition: transform 0.3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 24px;
        }

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

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

        /* Subscribe CTA */
        .subscribe-box {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 36px 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
            justify-content: space-between;
        }

        .subscribe-box h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px;
        }

        .subscribe-box p {
            font-size: 15px;
            color: var(--text-sub);
            margin: 0;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex: 1;
            min-width: 300px;
            max-width: 480px;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            padding: 12px 18px;
            border: 1px solid rgba(15, 42, 65, 0.15);
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-main);
            background: var(--bg-light);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            min-width: 0;
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-sub);
            transition: all 0.25s ease;
        }

        .tag-link:hover {
            border-color: var(--brand-blue);
            color: var(--brand-blue);
            text-decoration: none;
            background: rgba(15, 76, 129, 0.04);
        }

        /* Footer */
        .site-footer {
            background: var(--card-white);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 32px;
            margin-top: 80px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid var(--border-color);
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: var(--brand-deep);
            margin: 0 0 12px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
            margin: 0;
            max-width: 360px;
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0 0 16px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-sub);
        }

        .footer-links a:hover {
            color: var(--brand-blue);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 24px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .footer-bottom span {
            white-space: nowrap;
        }

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

            .team-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }

            .topic-scroll {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                height: 64px;
            }

            .nav-logo {
                font-size: 18px;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }

            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }

            .category-header h1 {
                font-size: 26px;
            }

            .section-title {
                font-size: 22px;
            }

            .team-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .topic-scroll {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .deep-content {
                padding: 24px 20px;
            }

            .subscribe-box {
                padding: 24px 20px;
                flex-direction: column;
                align-items: stretch;
            }

            .subscribe-form {
                flex-direction: column;
                min-width: 0;
            }

            .ranking-card {
                padding: 20px;
            }

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

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

            .footer-bottom span {
                white-space: normal;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .category-header {
                padding: 20px 0 24px;
            }

            .category-header h1 {
                font-size: 22px;
            }

            .section-title {
                font-size: 19px;
            }

            .section-subtitle {
                font-size: 14px;
                margin-bottom: 20px;
            }

            .team-card-body {
                padding: 16px 18px 18px;
            }

            .team-card h3 {
                font-size: 17px;
            }

            .subscribe-box h3 {
                font-size: 18px;
            }

            .deep-content h3 {
                font-size: 20px;
            }

            .ranking-item {
                gap: 12px;
                padding: 12px 0;
            }
        }

/* roulang page: category2 */
:root {
            --brand-blue: #0F4C81;
            --brand-deep: #0B3C6D;
            --brand-orange: #F26B38;
            --bg-light: #F5F8FC;
            --card-white: #FFFFFF;
            --text-main: #162A41;
            --text-sub: #4B5C6E;
            --text-weak: #7A8A99;
            --border-color: rgba(15, 42, 65, 0.08);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 24px rgba(11, 60, 109, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(11, 60, 109, 0.14);
        }
        
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.75;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            padding-bottom: 0;
            margin: 0;
        }
        
        main {
            flex: 1;
            display: block;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        
        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }
        
        a:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }
        
        a:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        button, input, textarea, select {
            font-family: inherit;
        }
        
        button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }
        
        /* Header / Navigation */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.25s ease;
        }
        
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(11, 60, 109, 0.08);
        }
        
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
            text-decoration: none;
        }
        
        .nav-logo:hover {
            text-decoration: none;
            color: var(--brand-deep);
        }
        
        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-blue) 0%, #0F4C81 60%, var(--brand-deep) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }
        
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            white-space: nowrap;
            text-decoration: none;
        }
        
        .nav-cta:hover {
            background: var(--brand-deep);
            text-decoration: none;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 60, 109, 0.25);
        }
        
        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(11, 60, 109, 0.15);
        }
        
        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        
        .btn-primary:hover {
            background: var(--brand-deep);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(11, 60, 109, 0.28);
        }
        
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }
        
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-blue);
            font-weight: 600;
            font-size: 16px;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--brand-blue);
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        
        .btn-secondary:hover {
            background: rgba(15, 76, 129, 0.06);
            color: var(--brand-deep);
            border-color: var(--brand-deep);
            text-decoration: none;
            transform: translateY(-2px);
        }
        
        .btn-secondary:active {
            transform: translateY(0);
        }
        
        /* Sections */
        .section {
            padding-top: 64px;
            padding-bottom: 64px;
        }
        @media (min-width: 768px) {
            .section {
                padding-top: 80px;
                padding-bottom: 80px;
            }
        }
        @media (min-width: 1024px) {
            .section {
                padding-top: 100px;
                padding-bottom: 100px;
            }
        }
        
        .section-alt {
            background: #ffffff;
        }
        
        .section-heading {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: -0.3px;
        }
        @media (min-width: 768px) {
            .section-heading {
                font-size: 32px;
            }
        }
        
        .section-sub {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.8;
            margin-top: 12px;
        }
        
        /* Cards */
        .card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
            overflow: hidden;
        }
        
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(15, 42, 65, 0.16);
        }
        
        .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #eef3f8;
            position: relative;
        }
        
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        
        .card:hover .card-image img {
            transform: scale(1.04);
        }
        
        .card-body {
            padding: 20px;
        }
        
        .card-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 8px;
        }
        
        .card-text {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }
        
        .badge {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(242, 107, 56, 0.1);
            color: var(--brand-orange);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            letter-spacing: 0.3px;
        }
        
        .badge-blue {
            background: rgba(15, 76, 129, 0.08);
            color: var(--brand-blue);
        }
        
        /* List */
        .list-item {
            display: flex;
            flex-direction: column;
            gap: 16px;
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
        }
        
        .list-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(15, 42, 65, 0.16);
        }
        
        @media (min-width: 640px) {
            .list-item {
                flex-direction: row;
                align-items: center;
            }
            .list-item-media {
                flex: 0 0 220px;
            }
        }
        
        .list-item-media {
            border-radius: 12px;
            overflow: hidden;
            aspect-ratio: 16/10;
            background: #eef3f8;
        }
        .list-item-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .list-item-content {
            flex: 1;
        }
        
        .list-item-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 6px;
        }
        
        .list-item-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }
        
        .list-item-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 8px;
            font-size: 13px;
            color: var(--text-weak);
        }
        
        /* Horizontal scroll */
        .h-scroll {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            padding-bottom: 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .h-scroll > * {
            flex: 0 0 280px;
            scroll-snap-align: start;
        }
        @media (min-width: 768px) {
            .h-scroll > * {
                flex: 0 0 320px;
            }
        }
        
        /* Table */
        .rank-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--card-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
        }
        .rank-table th {
            text-align: left;
            padding: 14px 18px;
            background: rgba(15, 76, 129, 0.04);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-sub);
            letter-spacing: 0.4px;
        }
        .rank-table td {
            padding: 14px 18px;
            font-size: 14px;
            color: var(--text-sub);
            border-top: 1px solid var(--border-color);
        }
        .rank-table tr:hover td {
            background: rgba(15, 76, 129, 0.02);
        }
        .rank-number {
            display: inline-flex;
            width: 28px;
            height: 28px;
            align-items: center;
            justify-content: center;
            background: rgba(15, 76, 129, 0.08);
            color: var(--brand-blue);
            border-radius: 8px;
            font-weight: 700;
            font-size: 14px;
        }
        .rank-highlight {
            background: var(--brand-orange);
            color: #fff;
        }
        
        /* FAQ */
        .faq-item {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            overflow: hidden;
            margin-bottom: 16px;
        }
        .faq-item[open] {
            border-color: rgba(15, 76, 129, 0.2);
            box-shadow: var(--shadow-card-hover);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-main);
            cursor: pointer;
            list-style: none;
            user-select: none;
        }
        .faq-question::-webkit-details-marker {
            display: none;
        }
        .faq-question::after {
            content: "+";
            font-size: 22px;
            color: var(--brand-blue);
            font-weight: 400;
            transition: transform 0.2s ease;
        }
        .faq-item[open] .faq-question::after {
            transform: rotate(45deg);
            color: var(--brand-orange);
        }
        .faq-answer {
            padding: 0 22px 20px 22px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
        }
        
        /* CTA banner */
        .cta-banner {
            background: linear-gradient(135deg, #0F4C81 0%, #0B3C6D 100%);
            border-radius: 24px;
            padding: 32px;
            color: #fff;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        @media (min-width: 768px) {
            .cta-banner {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                padding: 48px;
            }
        }
        .cta-banner-title {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
        }
        .cta-banner-desc {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255,255,255,0.85);
            margin-top: 8px;
        }
        .cta-banner .btn-primary {
            background: var(--brand-orange);
            color: #fff;
            white-space: nowrap;
        }
        .cta-banner .btn-primary:hover {
            background: #e05a2b;
        }
        
        /* Tags */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-badge);
            color: var(--text-sub);
            font-size: 13px;
            transition: all 0.2s ease;
            text-decoration: none;
            box-shadow: var(--shadow-card);
        }
        .tag:hover {
            color: var(--brand-blue);
            border-color: var(--brand-blue);
            box-shadow: var(--shadow-card-hover);
            text-decoration: none;
            transform: translateY(-2px);
        }
        
        /* Form */
        .subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 16px;
        }
        @media (min-width: 640px) {
            .subscribe-form {
                flex-direction: row;
                align-items: center;
            }
        }
        .subscribe-input {
            flex: 1;
            padding: 14px 18px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            font-size: 15px;
            background: #fff;
            color: var(--text-main);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .subscribe-input:focus {
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
            outline: none;
        }
        
        /* Footer */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border-color);
            padding-top: 48px;
            padding-bottom: 32px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
                gap: 40px;
            }
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: var(--brand-deep);
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: var(--text-sub);
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--brand-blue);
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 13px;
            color: var(--text-weak);
        }
        
        /* Misc */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--text-weak);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--brand-blue);
            text-decoration: underline;
        }
        .divider {
            height: 1px;
            background: var(--border-color);
            margin: 32px 0;
        }
        
        @media (max-width: 640px) {
            .nav-cta {
                padding: 8px 16px;
                font-size: 14px;
            }
            .nav-logo {
                font-size: 19px;
            }
            .nav-logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .section-heading {
                font-size: 24px;
            }
            .btn-primary, .btn-secondary {
                padding: 12px 24px;
                font-size: 15px;
            }
            .card-body {
                padding: 16px;
            }
            .list-item {
                padding: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --brand-blue: #0F4C81;
            --brand-deep: #0B3C6D;
            --brand-orange: #F26B38;
            --bg-light: #F5F8FC;
            --card-white: #FFFFFF;
            --text-main: #162A41;
            --text-sub: #4B5C6E;
            --text-weak: #7A8A99;
            --border-color: rgba(15, 42, 65, 0.08);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 24px rgba(11, 60, 109, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(11, 60, 109, 0.14);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.75;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            padding-bottom: 0;
        }

        main {
            flex: 1;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }

        a:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }

        a:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* Header */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.25s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(11, 60, 109, 0.08);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
        }

        .nav-logo:hover {
            text-decoration: none;
            color: var(--brand-deep);
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-blue) 0%, #0F4C81 60%, var(--brand-deep) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--brand-deep);
            text-decoration: none;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 60, 109, 0.25);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(11, 60, 109, 0.15);
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--brand-deep);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(11, 60, 109, 0.28);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-blue);
            font-weight: 600;
            font-size: 16px;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--brand-blue);
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(15, 76, 129, 0.06);
            color: var(--brand-deep);
            border-color: var(--brand-deep);
            text-decoration: none;
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-orange);
            font-weight: 600;
            font-size: 14px;
            padding: 6px 0;
            border: none;
            background: none;
            cursor: pointer;
            transition: color 0.2s ease, gap 0.2s ease;
        }

        .btn-read-more:hover {
            color: #d95a2b;
            gap: 10px;
            text-decoration: none;
        }

        /* Cards */
        .card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(15, 76, 129, 0.18);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
        }

        .badge-blue {
            background: rgba(15, 76, 129, 0.1);
            color: var(--brand-blue);
        }

        .badge-orange {
            background: rgba(242, 105, 56, 0.12);
            color: var(--brand-orange);
        }

        .badge-green {
            background: rgba(34, 170, 120, 0.12);
            color: #22AA78;
        }

        .badge-gray {
            background: rgba(122, 138, 153, 0.12);
            color: var(--text-weak);
        }

        /* Section */
        .section {
            padding: 64px 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
            letter-spacing: -0.2px;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 32px;
            max-width: 720px;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb-sep {
            color: var(--text-weak);
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-badge);
            font-size: 13px;
            color: var(--text-sub);
            transition: all 0.25s ease;
        }

        .tag-cloud a:hover {
            background: rgba(15, 76, 129, 0.06);
            border-color: var(--brand-blue);
            color: var(--brand-blue);
            text-decoration: none;
            transform: translateY(-1px);
        }

        /* Form */
        .form-input {
            width: 100%;
            padding: 13px 18px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-main);
            background: #fff;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
        }

        /* Footer */
        .site-footer {
            background: linear-gradient(180deg, #0F2A45 0%, #0B3C6D 55%, #091E35 100%);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 32px;
            margin-top: 48px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.2px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: #fff;
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            background: #fff;
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow 0.25s ease;
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-main);
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            gap: 12px;
            transition: color 0.2s ease;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--brand-orange);
            transition: transform 0.3s ease;
        }

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

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* Data bar */
        .data-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .data-legend {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .section {
                padding: 48px 0;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                height: 64px;
            }

            .nav-logo {
                font-size: 19px;
            }

            .nav-logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
                border-radius: 8px;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 14px;
            }

            .section-title {
                font-size: 22px;
            }

            .section {
                padding: 36px 0;
            }

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

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

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .nav-wrapper {
                height: 58px;
                gap: 8px;
            }

            .nav-logo {
                font-size: 17px;
                gap: 7px;
            }

            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
                border-radius: 7px;
            }

            .nav-cta {
                padding: 7px 13px;
                font-size: 13px;
                gap: 4px;
            }

            .section-title {
                font-size: 20px;
            }

            .btn-primary {
                padding: 12px 24px;
                font-size: 15px;
            }

            .btn-secondary {
                padding: 11px 22px;
                font-size: 15px;
            }

            .faq-question {
                padding: 14px 18px;
                font-size: 15px;
            }

            .faq-answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }

/* roulang page: category5 */
:root {
            --brand-blue: #0F4C81;
            --brand-deep: #0B3C6D;
            --brand-orange: #F26B38;
            --bg-light: #F5F8FC;
            --card-white: #FFFFFF;
            --text-main: #162A41;
            --text-sub: #4B5C6E;
            --text-weak: #7A8A99;
            --border-color: rgba(15, 42, 65, 0.08);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 24px rgba(11, 60, 109, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(11, 60, 109, 0.14);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.75;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            padding-bottom: 0;
        }
        main {
            flex: 1;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }
        a:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.25s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(11, 60, 109, 0.08);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
        }
        .nav-logo:hover {
            text-decoration: none;
            color: var(--brand-deep);
        }
        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-blue) 0%, #0F4C81 60%, var(--brand-deep) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--brand-deep);
            text-decoration: none;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 60, 109, 0.25);
        }
        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(11, 60, 109, 0.15);
        }
        .nav-cta-icon {
            font-size: 18px;
            line-height: 1;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--brand-deep);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(11, 60, 109, 0.28);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-blue);
            font-weight: 600;
            font-size: 16px;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--brand-blue);
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: rgba(15, 76, 129, 0.06);
            color: var(--brand-deep);
            border-color: var(--brand-deep);
            text-decoration: none;
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }

        .section-pad {
            padding: 56px 0;
        }
        .section-head {
            margin-bottom: 32px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: -0.2px;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-sub);
            margin-top: 8px;
            max-width: 720px;
        }
        .card-base {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
        }
        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(15, 76, 129, 0.2);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
        }
        .badge-blue {
            background: rgba(15, 76, 129, 0.08);
            color: var(--brand-blue);
        }
        .badge-orange {
            background: rgba(242, 107, 56, 0.1);
            color: var(--brand-orange);
        }
        .badge-green {
            background: rgba(22, 160, 133, 0.1);
            color: #16a085;
        }
        .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--brand-orange);
            line-height: 1.2;
        }
        .divider-light {
            border-top: 1px solid rgba(15, 42, 65, 0.06);
            margin: 32px 0;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-chip {
            display: inline-flex;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            background: var(--card-white);
            border: 1px solid var(--border-color);
            color: var(--text-sub);
            font-size: 13px;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        .tag-chip:hover {
            border-color: var(--brand-blue);
            color: var(--brand-blue);
            text-decoration: none;
            background: rgba(15, 76, 129, 0.04);
        }
        .ven-card-img {
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            background: #e8eef5;
        }
        .ven-card-body {
            padding: 24px 20px;
        }
        .ven-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .ven-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-blue);
            font-weight: 600;
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .btn-read-more:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            background: var(--card-white);
            box-shadow: var(--shadow-card);
            padding: 22px 24px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .faq-item:hover {
            border-color: rgba(15, 76, 129, 0.18);
            box-shadow: var(--shadow-card-hover);
        }
        .faq-question {
            font-weight: 700;
            font-size: 17px;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .faq-answer {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 16px;
            border-bottom: 1px solid rgba(15, 42, 65, 0.05);
            transition: background 0.2s ease;
        }
        .ranking-item:last-child {
            border-bottom: none;
        }
        .ranking-item:hover {
            background: rgba(15, 76, 129, 0.03);
        }
        .ranking-num {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--brand-blue);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }
        .ranking-num.top {
            background: var(--brand-orange);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding: 48px 0 32px;
        }
        .site-footer {
            background: #0B2A45;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 32px;
        }
        .site-footer .footer-brand {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            max-width: 380px;
        }
        .site-footer .footer-heading {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            justify-content: space-between;
            align-items: center;
        }
        .footer-bottom span {
            white-space: nowrap;
        }
        .breadcrumb {
            display: flex;
            font-size: 14px;
            color: var(--text-weak);
            gap: 8px;
            align-items: center;
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--text-weak);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--brand-blue);
        }
        .breadcrumb-sep {
            user-select: none;
        }
        .venue-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .topic-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 8px;
            scrollbar-width: thin;
            scrollbar-color: rgba(15, 76, 129, 0.3) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .topic-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .topic-scroll::-webkit-scrollbar-thumb {
            background: rgba(15, 76, 129, 0.25);
            border-radius: 999px;
        }
        .topic-card {
            min-width: 280px;
            max-width: 320px;
            flex-shrink: 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--card-white);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .topic-card img {
            aspect-ratio: 16/8;
            object-fit: cover;
        }
        .topic-card-body {
            padding: 16px 18px;
        }
        .subscribe-box {
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.04), rgba(242, 107, 56, 0.05));
            border: 1px solid rgba(15, 76, 129, 0.12);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }
        .subscribe-input {
            flex: 1;
            min-width: 220px;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(15, 42, 65, 0.16);
            font-size: 15px;
            background: #fff;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .subscribe-input:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
        }

        @media (max-width: 1024px) {
            .venue-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 40px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .venue-grid {
                grid-template-columns: 1fr;
            }
            .nav-wrapper {
                height: 64px;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 14px;
            }
            .nav-logo {
                font-size: 19px;
            }
            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 32px 0 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .subscribe-box {
                padding: 20px;
            }
            .subscribe-input {
                min-width: 100%;
            }
            .topic-card {
                min-width: 240px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding: 32px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .nav-cta span.nav-cta-text {
                display: none;
            }
            .nav-cta {
                padding: 8px 12px;
                gap: 4px;
            }
            .nav-cta-icon {
                font-size: 16px;
            }
        }

/* roulang page: category4 */
:root {
            --brand-blue: #0F4C81;
            --brand-deep: #0B3C6D;
            --brand-orange: #F26B38;
            --bg-light: #F5F8FC;
            --card-white: #FFFFFF;
            --text-main: #162A41;
            --text-sub: #4B5C6E;
            --text-weak: #7A8A99;
            --border-color: rgba(15, 42, 65, 0.08);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 24px rgba(11, 60, 109, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(11, 60, 109, 0.14);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.75;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
            padding: 0;
        }

        main {
            flex: 1;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }

        a:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }

        a:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* Header / Navigation */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.25s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(11, 60, 109, 0.08);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
        }

        .nav-logo:hover {
            text-decoration: none;
            color: var(--brand-deep);
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-blue) 0%, #0F4C81 60%, var(--brand-deep) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--brand-deep);
            text-decoration: none;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 60, 109, 0.25);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(11, 60, 109, 0.15);
        }

        .nav-cta-icon {
            font-size: 18px;
            line-height: 1;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--brand-deep);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(11, 60, 109, 0.28);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-blue);
            font-weight: 600;
            font-size: 16px;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--brand-blue);
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(15, 76, 129, 0.06);
            color: var(--brand-deep);
            border-color: var(--brand-deep);
            text-decoration: none;
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            color: var(--brand-blue);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.2s ease, color 0.2s ease;
            text-decoration: none;
        }

        .btn-ghost:hover {
            background: rgba(15, 76, 129, 0.06);
            color: var(--brand-deep);
            text-decoration: none;
        }

        /* Cards */
        .content-card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
        }

        .content-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(15, 76, 129, 0.18);
        }

        .section-block {
            padding: 72px 0;
        }

        .section-block-alt {
            background: #EDF2F8;
            padding: 72px 0;
        }

        .section-heading {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-subheading {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.75;
            max-width: 720px;
            margin-bottom: 40px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 20px;
        }

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

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

        .breadcrumb-separator {
            user-select: none;
            color: rgba(15, 42, 65, 0.35);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(242, 107, 56, 0.1);
            color: var(--brand-orange);
            font-weight: 600;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            line-height: 1.4;
        }

        .badge-blue {
            background: rgba(15, 76, 129, 0.08);
            color: var(--brand-blue);
        }

        .badge-success {
            background: rgba(34, 160, 91, 0.1);
            color: #1DA55B;
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--brand-blue);
            line-height: 1.2;
        }

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

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid rgba(15, 42, 65, 0.06);
            padding: 20px 0;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            padding: 8px 0;
            transition: color 0.2s ease;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 300;
            color: var(--brand-blue);
            transition: transform 0.25s ease;
        }

        .faq-answer {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding-top 0.35s ease;
            padding-top: 0;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

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

        /* List item */
        .review-list-item {
            display: flex;
            flex-direction: column;
            gap: 16px;
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 20px;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

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

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

        .review-score {
            font-weight: 700;
            color: var(--brand-orange);
            font-size: 20px;
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud-item {
            display: inline-flex;
            padding: 6px 16px;
            font-size: 13px;
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-badge);
            color: var(--text-sub);
            transition: all 0.25s ease;
            text-decoration: none;
            font-weight: 500;
        }

        .tag-cloud-item:hover {
            border-color: var(--brand-blue);
            color: var(--brand-blue);
            text-decoration: none;
            background: rgba(15, 76, 129, 0.04);
        }

        /* Subscribe form */
        .subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            width: 100%;
        }

        .subscribe-input {
            flex: 1;
            min-height: 48px;
            border: 1px solid rgba(15, 42, 65, 0.16);
            border-radius: var(--radius-btn);
            padding: 0 18px;
            font-size: 15px;
            color: var(--text-main);
            background: #fff;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            outline: none;
            width: 100%;
        }

        .subscribe-input:focus {
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.12);
        }

        .form-message {
            font-size: 13px;
            font-weight: 500;
            min-height: 20px;
            transition: color 0.2s ease;
        }

        .form-message.success {
            color: #1DA55B;
        }

        .form-message.error {
            color: #D9485F;
        }

        /* Footer */
        .site-footer {
            background: #0B2A47;
            color: rgba(255, 255, 255, 0.78);
            padding: 56px 0 28px;
            margin-top: 60px;
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.72);
            transition: color 0.2s ease;
        }

        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }

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

        .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            max-width: 340px;
            color: rgba(255, 255, 255, 0.62);
        }

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

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 14px;
        }

        .footer-links li {
            margin: 0;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

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

            .section-block,
            .section-block-alt {
                padding: 56px 0;
            }
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .nav-wrapper {
                height: 64px;
            }

            .nav-logo {
                font-size: 18px;
            }

            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }

            .section-heading {
                font-size: 24px;
            }

            .review-list-item {
                padding: 16px;
            }

            .stat-number {
                font-size: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                font-size: 12px;
            }

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

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section-block,
            .section-block-alt {
                padding: 44px 0;
            }

            .section-heading {
                font-size: 21px;
            }

            .nav-cta {
                padding: 7px 14px;
                font-size: 12px;
                gap: 4px;
            }

            .nav-cta-icon {
                font-size: 15px;
            }

            .btn-primary,
            .btn-secondary {
                padding: 11px 22px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }

            .stat-number {
                font-size: 24px;
            }

            .tag-cloud {
                gap: 8px;
            }

            .tag-cloud-item {
                font-size: 12px;
                padding: 5px 12px;
            }
        }

/* roulang page: category6 */
:root {
            --brand-blue: #0F4C81;
            --brand-deep: #0B3C6D;
            --brand-orange: #F26B38;
            --bg-light: #F5F8FC;
            --card-white: #FFFFFF;
            --text-main: #162A41;
            --text-sub: #4B5C6E;
            --text-weak: #7A8A99;
            --border-color: rgba(15, 42, 65, 0.08);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-badge: 999px;
            --shadow-card: 0 8px 24px rgba(11, 60, 109, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(11, 60, 109, 0.14);
            --success: #2E9B6D;
            --warning: #D98A2B;
            --danger: #C8463B;
        }
        /* roulang page: community-events */
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.75;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        main {
            flex: 1;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }
        a:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 2px;
            border-radius: 4px;
        }
        /* Header / Navigation */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.25s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(11, 60, 109, 0.08);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
        }
        .nav-logo:hover {
            text-decoration: none;
            color: var(--brand-deep);
        }
        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-blue) 0%, #0F4C81 60%, var(--brand-deep) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-cta:hover {
            background: var(--brand-deep);
            text-decoration: none;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 60, 109, 0.25);
        }
        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(11, 60, 109, 0.15);
        }
        .nav-cta-icon {
            font-size: 18px;
            line-height: 1;
        }
        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--brand-deep);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(11, 60, 109, 0.28);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(11, 60, 109, 0.18);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-blue);
            font-weight: 600;
            font-size: 16px;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--brand-blue);
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: rgba(15, 76, 129, 0.06);
            color: var(--brand-deep);
            border-color: var(--brand-deep);
            text-decoration: none;
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            color: var(--brand-blue);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background 0.2s ease, color 0.2s ease;
            text-decoration: none;
        }
        .btn-ghost:hover {
            background: rgba(15, 76, 129, 0.06);
            color: var(--brand-deep);
            text-decoration: none;
        }
        /* Cards */
        .card-base {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
        }
        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(15, 76, 129, 0.18);
            transform: translateY(-4px);
        }
        /* Badge / Tag */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(242, 107, 56, 0.1);
            color: var(--brand-orange);
            font-weight: 600;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            white-space: nowrap;
        }
        .badge-blue {
            background: rgba(15, 76, 129, 0.08);
            color: var(--brand-blue);
        }
        .badge-green {
            background: rgba(46, 155, 109, 0.1);
            color: var(--success);
        }
        .tag {
            display: inline-block;
            background: var(--bg-light);
            color: var(--text-sub);
            font-size: 13px;
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--border-color);
            transition: all 0.2s ease;
            text-decoration: none;
            cursor: pointer;
        }
        .tag:hover {
            background: rgba(15, 76, 129, 0.06);
            color: var(--brand-deep);
            border-color: rgba(15, 76, 129, 0.3);
            text-decoration: none;
        }
        /* Section styles */
        .section-block {
            padding: 72px 0;
        }
        .section-block-alt {
            background: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 32px;
        }
        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-sub);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--brand-blue);
            text-decoration: underline;
        }
        .breadcrumb-sep {
            color: var(--text-weak);
            font-size: 12px;
        }
        .breadcrumb-current {
            color: var(--brand-blue);
            font-weight: 600;
        }
        /* FAQ */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            background: #fff;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .faq-item:hover {
            border-color: rgba(15, 76, 129, 0.2);
            box-shadow: 0 4px 16px rgba(11, 60, 109, 0.08);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color 0.2s ease;
        }
        .faq-question:hover {
            color: var(--brand-blue);
        }
        .faq-icon {
            font-size: 20px;
            color: var(--brand-orange);
            flex-shrink: 0;
            line-height: 1;
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 0 24px 20px 24px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.85;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        /* Form */
        .form-input {
            width: 100%;
            padding: 14px 18px;
            border: 1px solid rgba(15, 42, 65, 0.18);
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-main);
            background: #fff;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .form-input:focus {
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
            outline: none;
        }
        .form-error {
            border-color: var(--danger);
            box-shadow: 0 0 0 3px rgba(200, 70, 59, 0.1);
        }
        .form-success-msg {
            display: none;
            color: var(--success);
            font-size: 14px;
            font-weight: 500;
            margin-top: 10px;
        }
        .form-success-msg.show {
            display: block;
        }
        /* Footer */
        .site-footer {
            background: #0F2A42;
            color: #B8C7D6;
            padding: 56px 0 32px;
            margin-top: 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.2px;
        }
        .footer-desc {
            font-size: 14px;
            color: #8FA3B8;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: #8FA3B8;
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 13px;
            color: #7C91A5;
        }
        .footer-bottom span {
            white-space: nowrap;
        }
        /* Hero-like compact title area */
        .category-header {
            padding: 40px 0 28px;
            background: linear-gradient(135deg, #f0f5fb 0%, #e6eef7 100%);
            border-bottom: 1px solid var(--border-color);
        }
        .category-h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--brand-deep);
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .category-desc {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.85;
            max-width: 720px;
        }
        /* Activity card */
        .activity-card {
            display: flex;
            flex-direction: column;
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
        }
        .activity-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(15, 76, 129, 0.18);
            transform: translateY(-4px);
        }
        .activity-card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }
        .activity-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .activity-card:hover .activity-card-image img {
            transform: scale(1.04);
        }
        .activity-card-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .activity-card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .activity-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .activity-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin: 0;
        }
        .activity-card-summary {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            flex: 1;
            margin: 0;
        }
        .activity-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .activity-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-blue);
            transition: color 0.2s ease;
        }
        .activity-link:hover {
            color: var(--brand-deep);
            text-decoration: underline;
        }
        /* Ranking item */
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 10px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .ranking-item:hover {
            border-color: rgba(15, 76, 129, 0.2);
            box-shadow: 0 4px 16px rgba(11, 60, 109, 0.06);
        }
        .ranking-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-light);
            color: var(--brand-blue);
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .ranking-number.top1 {
            background: rgba(242, 107, 56, 0.12);
            color: var(--brand-orange);
        }
        .ranking-number.top2 {
            background: rgba(15, 76, 129, 0.1);
            color: var(--brand-blue);
        }
        .ranking-number.top3 {
            background: rgba(46, 155, 109, 0.1);
            color: var(--success);
        }
        .ranking-info {
            flex: 1;
            min-width: 0;
        }
        .ranking-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
        }
        .ranking-stat {
            font-size: 13px;
            color: var(--text-weak);
        }
        .ranking-value {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-blue);
            white-space: nowrap;
        }
        /* Deep content */
        .deep-content {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 40px;
            box-shadow: var(--shadow-card);
        }
        .deep-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .deep-content p {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .deep-content p:last-child {
            margin-bottom: 0;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .category-h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
            .category-header {
                padding: 28px 0 20px;
            }
            .category-h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 22px;
            }
            .nav-wrapper {
                height: 64px;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }
            .nav-cta {
                font-size: 13px;
                padding: 8px 16px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .deep-content {
                padding: 24px;
            }
            .activity-card-body {
                padding: 16px 18px 18px;
            }
        }
        @media (max-width: 520px) {
            .category-h1 {
                font-size: 22px;
            }
            .category-desc {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .activity-card-meta {
                font-size: 12px;
                gap: 6px 10px;
            }
            .ranking-item {
                padding: 12px 14px;
                gap: 10px;
            }
            .ranking-number {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
            .breadcrumb {
                font-size: 12px;
            }
        }