/* roulang page: index */
:root {
            --brand: #00C566;
            --brand-dark: #00A653;
            --brand-light: #E5F9F0;
            --ink: #14171C;
            --ink-soft: #3D4349;
            --ink-muted: #6B7280;
            --warm: #F4F4F2;
            --warm-soft: #F7F7F5;
            --white: #FFFFFF;
            --border: #E5E5E0;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-sm: 0 4px 16px rgba(20, 23, 28, 0.06);
            --shadow-md: 0 8px 24px rgba(20, 23, 28, 0.08);
            --shadow-lg: 0 12px 28px rgba(20, 23, 28, 0.12);
            --transition: 0.2s ease-out;
            --container: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            color: var(--ink);
            background: var(--white);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), opacity var(--transition);
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        input:focus-visible,
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid rgba(0, 197, 102, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-in {
            animation: fadeInUp 0.5s ease-out both;
        }

        .delay-100 {
            animation-delay: 0.1s;
        }
        .delay-200 {
            animation-delay: 0.2s;
        }
        .delay-300 {
            animation-delay: 0.3s;
        }

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

        .section-spacing-tight {
            padding: 48px 0;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
            background: var(--brand-light);
            color: var(--brand-dark);
            letter-spacing: 0.01em;
        }

        .badge-dark {
            background: var(--ink);
            color: var(--white);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.6;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
            border: 1.5px solid transparent;
        }

        .btn-primary {
            background: var(--brand);
            color: var(--white);
            border-color: var(--brand);
        }

        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 197, 102, 0.3);
        }

        .btn-secondary {
            background: var(--white);
            color: var(--ink);
            border-color: var(--border);
        }

        .btn-secondary:hover {
            background: var(--warm);
            border-color: var(--ink-soft);
            transform: translateY(-2px);
        }

        .btn-ghost-white {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.4);
        }

        .btn-ghost-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }

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

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #d5d5d0;
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--warm);
        }

        .card-body {
            padding: 24px;
        }

        .card-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .card-excerpt {
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

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

        .link-arrow:hover {
            gap: 10px;
            color: var(--ink);
        }

        .link-arrow .arrow {
            transition: transform var(--transition);
        }

        .link-arrow:hover .arrow {
            transform: translateX(3px);
        }

        .image-placeholder {
            background: var(--warm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--ink-muted);
            font-size: 13px;
            font-weight: 500;
            min-height: 180px;
            border-radius: var(--radius-md);
        }

        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .stat-label {
            font-size: 14px;
            color: var(--ink-muted);
        }

        .table-diff {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            line-height: 1.6;
        }

        .table-diff th,
        .table-diff td {
            padding: 16px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }

        .table-diff th {
            font-weight: 600;
            background: var(--warm-soft);
            color: var(--ink);
            font-size: 13px;
            letter-spacing: 0.02em;
        }

        .table-diff td {
            color: var(--ink-soft);
        }

        .table-diff .highlight-col {
            background: var(--brand-light);
            color: var(--brand-dark);
            font-weight: 600;
        }

        .news-item {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
        }

        .news-item:first-child {
            padding-top: 0;
        }

        .news-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .news-date {
            font-size: 13px;
            color: var(--ink-muted);
            font-weight: 500;
        }

        .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
        }

        .news-excerpt {
            font-size: 14px;
            color: var(--ink-muted);
            line-height: 1.7;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 20px 0;
            font-weight: 600;
            font-size: 17px;
            color: var(--ink);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color var(--transition);
        }

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

        .faq-question .icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--warm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--ink-soft);
            transition: all var(--transition);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            padding: 0 32px 0 0;
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding-bottom: 20px;
        }

        .faq-item.active .faq-question .icon {
            background: var(--brand);
            color: var(--white);
            transform: rotate(45deg);
        }

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

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

        .fixed-bottom-bar {
            position: fixed;
            bottom: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 680px;
            background: var(--ink);
            border-radius: 999px;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            z-index: 90;
            box-shadow: 0 12px 32px rgba(20, 23, 28, 0.3);
        }

        .fixed-bottom-text {
            color: var(--white);
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--ink);
            padding: 4px;
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .section-spacing {
                padding: 56px 0;
            }
            .stat-number {
                font-size: 26px;
            }
        }

        @media (max-width: 768px) {
            .section-spacing {
                padding: 44px 0;
            }
            .section-spacing-tight {
                padding: 36px 0;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--white);
                border-radius: 16px;
                box-shadow: var(--shadow-md);
                padding: 16px 20px;
                flex-direction: column;
                gap: 4px;
                z-index: 50;
                border: 1px solid var(--border);
                margin-top: 8px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a.nav-link {
                padding: 10px 14px;
                font-size: 15px;
                border-radius: 8px;
            }
            .nav-links a.nav-link:hover {
                background: var(--warm);
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 13px 26px;
                font-size: 15px;
            }
            .card-body {
                padding: 18px;
            }
            .card-title {
                font-size: 17px;
            }
            .fixed-bottom-bar {
                padding: 10px 16px;
                bottom: 12px;
                border-radius: 16px;
            }
            .fixed-bottom-text {
                font-size: 13px;
            }
            .table-diff th,
            .table-diff td {
                padding: 10px 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-spacing {
                padding: 36px 0;
            }
            .stat-number {
                font-size: 22px;
            }
            .fixed-bottom-bar {
                flex-direction: row;
                align-items: center;
                padding: 8px 12px;
                gap: 10px;
                border-radius: 12px;
            }
            .fixed-bottom-text {
                font-size: 12px;
            }
            .btn {
                padding: 8px 16px;
                font-size: 13px;
                border-radius: 999px;
            }
            .btn-sm {
                padding: 6px 14px;
                font-size: 12px;
            }
        }

        .hero-bg {
            background-image: linear-gradient(rgba(20, 23, 28, 0.65), rgba(20, 23, 28, 0.65)), url('/assets/images/d14a2506e40a7403.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .play-btn {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--brand);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            border: 3px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition);
            cursor: pointer;
        }

        .play-btn:hover {
            background: var(--brand-dark);
            transform: scale(1.08);
            border-color: var(--white);
            box-shadow: 0 8px 24px rgba(0, 197, 102, 0.4);
        }

        .backdrop-blur-nav {
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

/* roulang page: category1 */
:root {
            --brand: #00C566;
            --brand-dark: #00A653;
            --brand-light: #E5F9F0;
            --ink: #14171C;
            --ink-soft: #3D4349;
            --ink-muted: #6B7280;
            --warm: #F4F4F2;
            --warm-soft: #F7F7F5;
            --white: #FFFFFF;
            --border: #E5E5E0;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-sm: 0 4px 16px rgba(20, 23, 28, 0.06);
            --shadow-md: 0 8px 24px rgba(20, 23, 28, 0.08);
            --shadow-lg: 0 12px 28px rgba(20, 23, 28, 0.12);
            --transition: 0.2s ease-out;
            --container: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            color: var(--ink);
            background: var(--white);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), opacity var(--transition), gap var(--transition);
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        input:focus-visible,
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid rgba(0, 197, 102, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-spacing {
            padding: 72px 0;
        }
        .section-spacing-tight {
            padding: 48px 0;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
            background: var(--brand-light);
            color: var(--brand-dark);
            letter-spacing: 0.01em;
        }
        .badge-dark {
            background: var(--ink);
            color: var(--white);
        }
        .badge-warm {
            background: var(--warm);
            color: var(--ink-soft);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.6;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
            border: 1.5px solid transparent;
        }
        .btn-primary {
            background: var(--brand);
            color: var(--white);
            border-color: var(--brand);
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 197, 102, 0.3);
        }
        .btn-secondary {
            background: var(--white);
            color: var(--ink);
            border-color: var(--border);
        }
        .btn-secondary:hover {
            background: var(--warm);
            border-color: var(--ink-soft);
            transform: translateY(-2px);
        }
        .btn-ghost-white {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-ghost-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }
        .card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #d5d5d0;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--warm);
        }
        .card-body {
            padding: 24px;
        }
        .card-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .card-excerpt {
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-excerpt-full {
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .card-meta {
            font-size: 13px;
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--brand-dark);
            transition: all var(--transition);
        }
        .link-arrow:hover {
            gap: 10px;
            color: var(--ink);
        }
        .link-arrow .arrow {
            transition: transform var(--transition);
        }
        .link-arrow:hover .arrow {
            transform: translateX(3px);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.62);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-link:hover {
            color: var(--brand);
        }
        .nav-links a.nav-link {
            position: relative;
            padding-bottom: 2px;
        }
        .nav-links a.nav-link.active {
            color: var(--brand-dark);
            border-bottom: 2px solid var(--brand);
        }
        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: var(--ink-muted);
            line-height: 1.5;
        }
        .breadcrumb-link {
            font-size: 14px;
            color: var(--ink-muted);
            transition: color var(--transition);
        }
        .breadcrumb-link:hover {
            color: var(--brand-dark);
        }
        .breadcrumb-sep {
            font-size: 14px;
            color: var(--ink-muted);
            margin: 0 6px;
        }
        .table-diff {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }
        .table-diff th {
            text-align: left;
            font-weight: 600;
            color: var(--ink);
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            background: var(--warm-soft);
            font-size: 14px;
        }
        .table-diff td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--ink-soft);
        }
        .table-diff .highlight-col {
            background: var(--brand-light);
            color: var(--brand-dark);
            font-weight: 600;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 18px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--brand-dark);
        }
        .faq-answer {
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.8;
            margin-top: 10px;
            padding-left: 4px;
        }
        .faq-icon {
            font-size: 20px;
            color: var(--brand);
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        details[open] .faq-icon {
            transform: rotate(45deg);
        }
        .heat-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--ink);
            min-height: 200px;
        }
        .heat-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.55;
        }
        .heat-card .heat-overlay {
            position: relative;
            z-index: 1;
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            min-height: 200px;
        }
        .heat-card .heat-title {
            color: var(--white);
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .heat-card .heat-meta {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
        }
        .bottom-cta-fixed {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 40;
            background: rgba(20, 23, 28, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 12px 0;
            box-shadow: 0 -4px 16px rgba(20, 23, 28, 0.18);
        }
        .bottom-cta-fixed .inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .bottom-cta-fixed p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            line-height: 1.5;
        }
        .bottom-cta-fixed p strong {
            color: var(--white);
            font-weight: 600;
        }
        body {
            padding-bottom: 76px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .section-spacing {
                padding: 48px 0;
            }
            .section-spacing-tight {
                padding: 32px 0;
            }
            .stat-number {
                font-size: 28px;
            }
            .nav-links {
                display: none;
            }
            .nav-links.open {
                display: flex;
                flex-direction: column;
                gap: 4px;
                position: absolute;
                top: 64px;
                left: 16px;
                right: 16px;
                background: var(--white);
                border-radius: var(--radius-md);
                border: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                padding: 16px 20px;
                z-index: 60;
            }
            .nav-links.open a.nav-link {
                padding: 8px 0;
                border-bottom: none;
                font-size: 15px;
                display: block;
            }
            .nav-links.open a.nav-link.active {
                border-bottom: none;
            }
            .mobile-menu-btn {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                width: 36px;
                height: 36px;
                border-radius: 8px;
                border: 1px solid var(--border);
                background: var(--white);
                color: var(--ink);
                font-size: 18px;
                transition: all var(--transition);
            }
            .mobile-menu-btn:hover {
                border-color: var(--brand);
                color: var(--brand-dark);
            }
            .bottom-cta-fixed .inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .bottom-cta-fixed p {
                font-size: 13px;
            }
            .bottom-cta-fixed .btn {
                padding: 8px 18px;
                font-size: 13px;
            }
        }
        @media (min-width: 769px) {
            .mobile-menu-btn {
                display: none;
            }
            .nav-links {
                display: flex;
                align-items: center;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .card-title {
                font-size: 17px;
            }
            .card-excerpt {
                font-size: 14px;
            }
            .badge {
                font-size: 12px;
                padding: 3px 10px;
            }
            .btn {
                padding: 10px 22px;
                font-size: 14px;
            }
        }
        .h1-main {
            font-size: 44px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.3;
            color: var(--ink);
        }
        .h2-section {
            font-size: 30px;
            font-weight: 600;
            letter-spacing: -0.01em;
            line-height: 1.4;
            color: var(--ink);
        }
        .h3-section {
            font-size: 21px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--ink);
        }
        @media (max-width: 768px) {
            .h1-main {
                font-size: 32px;
            }
            .h2-section {
                font-size: 24px;
            }
            .h3-section {
                font-size: 18px;
            }
        }

/* roulang page: category3 */
:root {
            --brand: #00C566;
            --brand-dark: #00A653;
            --brand-light: #E5F9F0;
            --ink: #14171C;
            --ink-soft: #3D4349;
            --ink-muted: #6B7280;
            --warm: #F4F4F2;
            --warm-soft: #F7F7F5;
            --white: #FFFFFF;
            --border: #E5E5E0;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-sm: 0 4px 16px rgba(20, 23, 28, 0.06);
            --shadow-md: 0 8px 24px rgba(20, 23, 28, 0.08);
            --shadow-lg: 0 12px 28px rgba(20, 23, 28, 0.12);
            --transition: 0.2s ease-out;
            --container: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            color: var(--ink);
            background: var(--white);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), opacity var(--transition);
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        input:focus-visible,
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid rgba(0, 197, 102, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-spacing {
            padding: 72px 0;
        }
        .section-spacing-tight {
            padding: 48px 0;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
            background: var(--brand-light);
            color: var(--brand-dark);
            letter-spacing: 0.01em;
        }
        .badge-dark {
            background: var(--ink);
            color: var(--white);
        }
        .badge-outline {
            background: transparent;
            color: var(--ink-soft);
            border: 1px solid var(--border);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.6;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
            border: 1.5px solid transparent;
        }
        .btn-primary {
            background: var(--brand);
            color: var(--white);
            border-color: var(--brand);
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 197, 102, 0.3);
        }
        .btn-secondary {
            background: var(--white);
            color: var(--ink);
            border-color: var(--border);
        }
        .btn-secondary:hover {
            background: var(--warm);
            border-color: var(--ink-soft);
            transform: translateY(-2px);
        }
        .btn-ghost-white {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-ghost-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }
        .card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #d5d5d0;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--warm);
        }
        .card-body {
            padding: 24px;
        }
        .card-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .card-excerpt {
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            font-size: 13px;
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--brand-dark);
            transition: all var(--transition);
        }
        .link-arrow:hover {
            gap: 10px;
            color: var(--ink);
        }
        .link-arrow .arrow {
            transition: transform var(--transition);
        }
        .link-arrow:hover .arrow {
            transform: translateX(3px);
        }
        .nav-link {
            position: relative;
            transition: color var(--transition);
        }
        .nav-link:hover {
            color: var(--brand-dark);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-link:hover {
            color: #00C566;
        }
        .backdrop-blur-nav {
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .news-item {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .breadcrumb-sep {
            color: #B0B0AA;
            font-size: 13px;
            user-select: none;
        }
        .data-stat-card {
            background: var(--warm-soft);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: all var(--transition);
        }
        .data-stat-card:hover {
            border-color: var(--brand);
            box-shadow: var(--shadow-sm);
        }
        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 14px;
            color: var(--ink-muted);
            margin-top: 6px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .rank-item:hover {
            border-color: var(--brand);
            box-shadow: var(--shadow-sm);
        }
        .rank-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 15px;
            background: var(--warm);
            color: var(--ink-soft);
            flex-shrink: 0;
        }
        .rank-num.top {
            background: var(--brand);
            color: var(--white);
        }
        .highlight-tag {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 500;
            background: var(--brand-light);
            color: var(--brand-dark);
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--white);
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: #c5c5c0;
        }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            color: var(--ink);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-weight: 400;
            font-size: 22px;
            color: var(--brand-dark);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px 24px;
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.8;
        }
        @media (max-width: 1024px) {
            .section-spacing {
                padding: 56px 0;
            }
            .nav-links {
                display: none !important;
            }
            .mobile-menu-btn {
                display: inline-flex !important;
            }
            .mobile-menu-open .nav-links {
                display: flex !important;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--white);
                border: 1px solid var(--border);
                border-radius: var(--radius-md);
                padding: 16px 20px;
                gap: 12px;
                box-shadow: var(--shadow-lg);
                z-index: 60;
                margin-top: 8px;
            }
            .mobile-menu-open .nav-links a {
                padding: 8px 0;
                border-bottom: 1px solid var(--warm);
                font-size: 16px;
            }
            .mobile-menu-open .nav-links a:last-child {
                border-bottom: none;
            }
        }
        @media (max-width: 768px) {
            .section-spacing {
                padding: 48px 0;
            }
            .container {
                padding: 0 20px;
            }
            .stat-number {
                font-size: 28px;
            }
            .data-stat-card {
                padding: 18px 20px;
            }
            .rank-item {
                padding: 12px 16px;
                gap: 12px;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 15px;
            }
            .card-body {
                padding: 18px;
            }
            .card-title {
                font-size: 17px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-spacing {
                padding: 40px 0;
            }
            .stat-number {
                font-size: 24px;
            }
            .rank-num {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
        }
        .fade-in-up {
            animation: fadeInUp 0.5s ease-out both;
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .delay-100 { animation-delay: 0.1s; }
        .delay-200 { animation-delay: 0.2s; }
        .delay-300 { animation-delay: 0.3s; }
        .delay-400 { animation-delay: 0.4s; }

/* roulang page: category2 */
:root {
            --brand: #00C566;
            --brand-dark: #00A653;
            --brand-light: #E5F9F0;
            --ink: #14171C;
            --ink-soft: #3D4349;
            --ink-muted: #6B7280;
            --warm: #F4F4F2;
            --warm-soft: #F7F7F5;
            --white: #FFFFFF;
            --border: #E5E5E0;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-sm: 0 4px 16px rgba(20, 23, 28, 0.06);
            --shadow-md: 0 8px 24px rgba(20, 23, 28, 0.08);
            --shadow-lg: 0 12px 28px rgba(20, 23, 28, 0.12);
            --transition: 0.2s ease-out;
            --container: 1200px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            color: var(--ink);
            background: var(--white);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), opacity var(--transition);
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        input:focus-visible,
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid rgba(0, 197, 102, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

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

        .section-spacing-tight {
            padding: 48px 0;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
            background: var(--brand-light);
            color: var(--brand-dark);
            letter-spacing: 0.01em;
        }

        .badge-dark {
            background: var(--ink);
            color: var(--white);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.6;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
            border: 1.5px solid transparent;
        }

        .btn-primary {
            background: var(--brand);
            color: var(--white);
            border-color: var(--brand);
        }

        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 197, 102, 0.3);
        }

        .btn-secondary {
            background: var(--white);
            color: var(--ink);
            border-color: var(--border);
        }

        .btn-secondary:hover {
            background: var(--warm);
            border-color: var(--ink-soft);
            transform: translateY(-2px);
        }

        .btn-ghost-white {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.4);
        }

        .btn-ghost-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }

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

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #d5d5d0;
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--warm);
        }

        .card-body {
            padding: 24px;
        }

        .card-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .card-excerpt {
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            font-size: 13px;
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

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

        .link-arrow:hover {
            gap: 10px;
            color: var(--ink);
        }

        .link-arrow .arrow {
            transition: transform var(--transition);
        }

        .link-arrow:hover .arrow {
            transform: translateX(3px);
        }

        .nav-link {
            position: relative;
            padding-bottom: 2px;
        }

        .nav-link.active {
            color: var(--brand-dark);
            border-bottom: 2px solid var(--brand);
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }

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

        .breadcrumb-link {
            color: var(--ink-muted);
            font-size: 14px;
            transition: color var(--transition);
        }

        .breadcrumb-link:hover {
            color: var(--brand-dark);
        }

        .category-hero {
            background-image: linear-gradient(rgba(20, 23, 28, 0.82), rgba(20, 23, 28, 0.88)), url('/assets/images/d14a2506e40a7403.jpg');
            background-size: cover;
            background-position: center;
        }

        .fade-in {
            animation: fadeIn 0.4s ease-out;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(12px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 24px;
            z-index: 100;
            flex-direction: column;
            gap: 16px;
            margin-top: 8px;
        }

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

        @media (max-width: 767px) {
            .nav-links {
                display: none !important;
            }

            .mobile-menu-btn {
                display: inline-flex !important;
            }

            .container {
                padding: 0 20px;
            }

            .section-spacing {
                padding: 48px 0;
            }

            .section-spacing-tight {
                padding: 32px 0;
            }

            .card-body {
                padding: 20px;
            }

            .card-title {
                font-size: 17px;
            }

            .card-excerpt {
                font-size: 14px;
                -webkit-line-clamp: 2;
            }

            h1 {
                font-size: 28px !important;
            }

            h2 {
                font-size: 24px !important;
            }

            h3 {
                font-size: 18px !important;
            }

            .btn-lg {
                padding: 13px 26px;
                font-size: 14px;
            }
        }

        @media (min-width: 768px) {
            .mobile-menu-btn {
                display: none !important;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }

            h1 {
                font-size: 24px !important;
            }

            h2 {
                font-size: 21px !important;
            }

            .section-spacing {
                padding: 36px 0;
            }

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

/* roulang page: category4 */
:root {
            --brand: #00C566;
            --brand-dark: #00A653;
            --brand-light: #E5F9F0;
            --ink: #14171C;
            --ink-soft: #3D4349;
            --ink-muted: #6B7280;
            --warm: #F4F4F2;
            --warm-soft: #F7F7F5;
            --white: #FFFFFF;
            --border: #E5E5E0;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-sm: 0 4px 16px rgba(20, 23, 28, 0.06);
            --shadow-md: 0 8px 24px rgba(20, 23, 28, 0.08);
            --shadow-lg: 0 12px 28px rgba(20, 23, 28, 0.12);
            --transition: 0.2s ease-out;
            --container: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            color: var(--ink);
            background: var(--white);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), opacity var(--transition);
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        input:focus-visible,
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid rgba(0, 197, 102, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-spacing {
            padding: 72px 0;
        }
        .section-spacing-tight {
            padding: 48px 0;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
            background: var(--brand-light);
            color: var(--brand-dark);
            letter-spacing: 0.01em;
        }
        .badge-dark {
            background: var(--ink);
            color: var(--white);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.6;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
            border: 1.5px solid transparent;
        }
        .btn-primary {
            background: var(--brand);
            color: var(--white);
            border-color: var(--brand);
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 197, 102, 0.3);
        }
        .btn-secondary {
            background: var(--white);
            color: var(--ink);
            border-color: var(--border);
        }
        .btn-secondary:hover {
            background: var(--warm);
            border-color: var(--ink-soft);
            transform: translateY(-2px);
        }
        .btn-ghost-white {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-ghost-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }
        .card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #d5d5d0;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--warm);
        }
        .card-body {
            padding: 24px;
        }
        .card-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .card-excerpt {
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            font-size: 13px;
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--brand-dark);
            transition: all var(--transition);
        }
        .link-arrow:hover {
            gap: 10px;
            color: var(--ink);
        }
        .link-arrow .arrow {
            transition: transform var(--transition);
        }
        .link-arrow:hover .arrow {
            transform: translateX(3px);
        }
        .opinion-list-item {
            display: grid;
            grid-template-columns: 1fr 220px;
            gap: 24px;
            align-items: center;
            padding: 24px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .opinion-list-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #d5d5d0;
        }
        .opinion-list-item .card-img {
            aspect-ratio: 16/10;
            border-radius: var(--radius-sm);
        }
        .featured-opinion {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--ink);
            min-height: 380px;
            display: flex;
            align-items: flex-end;
        }
        .featured-opinion-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.55;
        }
        .featured-opinion::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(20,23,28,0.1) 0%, rgba(20,23,28,0.85) 100%);
            pointer-events: none;
        }
        .featured-opinion-content {
            position: relative;
            z-index: 2;
            padding: 40px;
            width: 100%;
        }
        .rank-number {
            font-size: 42px;
            font-weight: 700;
            color: var(--brand);
            line-height: 1;
        }
        .section-alt {
            background: var(--warm-soft);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .input-subscribe {
            flex: 1;
            min-width: 0;
            background: var(--warm-soft);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 12px 20px;
            font-size: 14px;
            color: var(--ink);
            transition: all var(--transition);
        }
        .input-subscribe::placeholder {
            color: var(--ink-muted);
        }
        .input-subscribe:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(0, 197, 102, 0.15);
            background: var(--white);
        }
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 40;
            background: rgba(20, 23, 28, 0.97);
            backdrop-filter: blur(10px);
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 14px 0;
            transform: translateY(0);
            transition: transform 0.3s ease;
        }
        .mobile-menu-open .nav-links {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            border: 1px solid var(--border);
            border-radius: 0 0 16px 16px;
            box-shadow: var(--shadow-lg);
            padding: 20px 24px;
            gap: 16px;
        }
        @media (max-width: 768px) {
            .opinion-list-item {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 18px;
            }
            .opinion-list-item .card-img {
                order: -1;
                aspect-ratio: 16/8;
            }
            .featured-opinion {
                min-height: 300px;
            }
            .featured-opinion-content {
                padding: 24px;
            }
            .section-spacing {
                padding: 48px 0;
            }
            .section-spacing-tight {
                padding: 36px 0;
            }
            .rank-number {
                font-size: 32px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .featured-opinion-content {
                padding: 20px;
            }
            .floating-cta {
                padding: 10px 0;
            }
        }

/* roulang page: category5 */
:root {
            --brand: #00C566;
            --brand-dark: #00A653;
            --brand-light: #E5F9F0;
            --ink: #14171C;
            --ink-soft: #3D4349;
            --ink-muted: #6B7280;
            --warm: #F4F4F2;
            --warm-soft: #F7F7F5;
            --white: #FFFFFF;
            --border: #E5E5E0;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-sm: 0 4px 16px rgba(20, 23, 28, 0.06);
            --shadow-md: 0 8px 24px rgba(20, 23, 28, 0.08);
            --shadow-lg: 0 12px 28px rgba(20, 23, 28, 0.12);
            --transition: 0.2s ease-out;
            --container: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            color: var(--ink);
            background: var(--white);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), opacity var(--transition);
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        button, input, textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        input:focus-visible, button:focus-visible, a:focus-visible {
            outline: 2px solid rgba(0, 197, 102, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-spacing {
            padding: 72px 0;
        }
        .section-spacing-tight {
            padding: 48px 0;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
            background: var(--brand-light);
            color: var(--brand-dark);
            letter-spacing: 0.01em;
        }
        .badge-dark {
            background: var(--ink);
            color: var(--white);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.6;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
            border: 1.5px solid transparent;
        }
        .btn-primary {
            background: var(--brand);
            color: var(--white);
            border-color: var(--brand);
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 197, 102, 0.3);
        }
        .btn-secondary {
            background: var(--white);
            color: var(--ink);
            border-color: var(--border);
        }
        .btn-secondary:hover {
            background: var(--warm);
            border-color: var(--ink-soft);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }
        .card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #d5d5d0;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--warm);
        }
        .card-body {
            padding: 24px;
        }
        .card-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .card-excerpt {
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            font-size: 13px;
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--brand-dark);
            transition: all var(--transition);
        }
        .link-arrow:hover {
            gap: 10px;
            color: var(--ink);
        }
        .link-arrow .arrow {
            transition: transform var(--transition);
        }
        .link-arrow:hover .arrow {
            transform: translateX(3px);
        }
        .nav-links a.nav-link {
            color: var(--ink-soft);
            font-weight: 500;
            padding-bottom: 2px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
        }
        .nav-links a.nav-link:hover {
            color: var(--brand-dark);
            border-bottom-color: var(--brand-dark);
        }
        .nav-links a.nav-link.active {
            color: var(--brand-dark);
            border-bottom-color: var(--brand);
        }
        .footer-link {
            color: rgba(255,255,255,0.6);
            transition: color var(--transition);
        }
        .footer-link:hover {
            color: var(--brand);
        }
        .featured-topic-card {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 0;
            background: var(--ink);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .featured-topic-card .content {
            padding: 40px;
            color: var(--white);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-topic-card .content h3 {
            color: var(--white);
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .featured-topic-card .content p {
            color: rgba(255,255,255,0.7);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .featured-topic-card .image-wrap {
            min-height: 320px;
            background: var(--warm);
        }
        .featured-topic-card .image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .timeline-item {
            display: flex;
            gap: 20px;
            position: relative;
            padding-bottom: 32px;
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: 12px;
            top: 28px;
            bottom: 0;
            width: 2px;
            background: var(--border);
        }
        .timeline-item:last-child::before {
            display: none;
        }
        .timeline-dot {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--brand);
            position: relative;
            z-index: 1;
        }
        .timeline-content h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .timeline-content p {
            font-size: 14px;
            color: var(--ink-muted);
            line-height: 1.7;
            margin: 0;
        }
        .data-stat {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-md);
            background: var(--warm-soft);
            border: 1px solid var(--border);
        }
        .data-stat .number {
            font-size: 32px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 4px;
        }
        .data-stat .label {
            font-size: 14px;
            color: var(--ink-muted);
        }
        .faq-details {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 24px;
            background: var(--white);
            transition: all var(--transition);
        }
        .faq-details:hover {
            border-color: #d5d5d0;
            box-shadow: var(--shadow-sm);
        }
        .faq-details summary {
            font-weight: 600;
            font-size: 16px;
            color: var(--ink);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .faq-details summary::marker {
            color: var(--brand);
        }
        .faq-details p {
            margin-top: 12px;
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.8;
        }
        .fixed-bottom-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 49;
            background: var(--ink);
            color: var(--white);
            padding: 12px 0;
            box-shadow: 0 -4px 20px rgba(20,23,28,0.18);
        }
        .fixed-bottom-cta .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .fixed-bottom-cta p {
            font-size: 14px;
            color: rgba(255,255,255,0.75);
            margin: 0;
        }
        .mobile-menu-panel {
            display: none;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 16px;
            margin-top: 8px;
        }
        .mobile-menu-panel.open {
            display: block;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 10px 12px;
            border-radius: 8px;
            font-weight: 500;
            color: var(--ink-soft);
        }
        .mobile-menu-panel a:hover {
            background: var(--warm);
            color: var(--brand-dark);
        }
        .mobile-menu-panel a.active {
            background: var(--brand-light);
            color: var(--brand-dark);
        }
        @media (max-width: 768px) {
            .section-spacing {
                padding: 48px 0;
            }
            .featured-topic-card {
                grid-template-columns: 1fr;
            }
            .featured-topic-card .image-wrap {
                min-height: 200px;
            }
            .featured-topic-card .content {
                padding: 28px;
            }
            .container {
                padding: 0 20px;
            }
            .card-body {
                padding: 18px;
            }
            .data-stat .number {
                font-size: 26px;
            }
        }
        @media (max-width: 480px) {
            .card-title {
                font-size: 17px;
            }
            .card-excerpt {
                font-size: 14px;
                -webkit-line-clamp: 2;
            }
            .btn-lg {
                padding: 13px 24px;
                font-size: 15px;
            }
            .fixed-bottom-cta .container {
                flex-direction: column;
                text-align: center;
            }
        }