/* roulang page: index */
:root {
            --brand: #1b4d3e;
            --brand-dark: #0f3025;
            --brand-light: #3b825c;
            --gold: #d4a853;
            --gold-light: #e8c47c;
            --bg: #faf9f7;
            --bg-soft: #f0f4f1;
            --bg-cream: #f5efe6;
            --text: #2d2a26;
            --text-soft: #6b6762;
            --text-muted: #9c9892;
            --border: #e8e4de;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(20, 40, 30, 0.06);
            --shadow-md: 0 8px 30px rgba(20, 40, 30, 0.08);
            --shadow-lg: 0 20px 60px rgba(20, 40, 30, 0.12);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }
        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
            background: none;
        }
        input {
            font-family: inherit;
            outline: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
        }

        /* ===== Header ===== */
        .topbar {
            background: #0a241c;
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            letter-spacing: 0.02em;
            padding: 6px 0;
        }
        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .topbar-domain {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .topbar-domain i {
            color: var(--gold);
            font-size: 12px;
        }
        .topbar-links {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .topbar-links a {
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.25s;
        }
        .topbar-links a:hover {
            color: var(--gold-light);
        }
        .header-main {
            background: #ffffff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--brand-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            box-shadow: 0 4px 12px rgba(27, 77, 62, 0.25);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }
        .logo-sub {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 0.08em;
            font-weight: 400;
            display: block;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-desktop a {
            padding: 8px 18px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-soft);
            transition: all 0.25s ease;
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--brand);
            background: var(--bg-soft);
        }
        .nav-desktop a.active {
            color: var(--brand);
            background: rgba(27, 77, 62, 0.08);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .btn-header {
            background: var(--brand);
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: 10px;
            font-weight: 500;
            font-size: 14px;
            transition: all 0.25s ease;
            box-shadow: 0 4px 14px rgba(27, 77, 62, 0.2);
        }
        .btn-header:hover {
            background: var(--brand-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(27, 77, 62, 0.25);
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 18px;
            background: #fff;
            transition: all 0.25s;
        }
        .menu-toggle:hover {
            background: var(--bg-soft);
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
            z-index: 99;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 10px;
            border-radius: 10px;
            font-size: 16px;
            color: var(--text);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu a:hover {
            background: var(--bg-soft);
            color: var(--brand);
        }
        .mobile-menu a.active {
            color: var(--brand);
            font-weight: 600;
            background: rgba(27, 77, 62, 0.06);
        }
        @media (max-width: 992px) {
            .nav-desktop {
                display: none;
            }
            .header-actions .btn-header {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: #0a241c;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.4;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 36, 28, 0.92) 0%, rgba(15, 48, 37, 0.75) 50%, rgba(27, 77, 62, 0.55) 100%);
        }
        .hero-wave {
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            z-index: 5;
        }
        .hero-content {
            position: relative;
            z-index: 10;
            padding: 100px 0 140px;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
            color: var(--gold-light);
            font-size: 13px;
            padding: 6px 18px;
            border-radius: 50px;
            letter-spacing: 0.05em;
            margin-bottom: 28px;
        }
        .hero-badge i {
            font-size: 12px;
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.25;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
        }
        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            margin-bottom: 40px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            transition: all 0.25s ease;
        }
        .btn-primary {
            background: var(--gold);
            color: #1c1917;
            box-shadow: 0 6px 20px rgba(212, 168, 83, 0.35);
        }
        .btn-primary:hover {
            background: var(--gold-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(212, 168, 83, 0.4);
        }
        .btn-outline {
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(5px);
        }
        .btn-outline:hover {
            border-color: rgba(255, 255, 255, 0.7);
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-num {
            font-size: 34px;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }
        @media (max-width: 768px) {
            .hero {
                min-height: 520px;
            }
            .hero-content {
                padding: 80px 0 110px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-stats {
                gap: 28px;
            }
            .hero-stat-num {
                font-size: 26px;
            }
        }

        /* ===== Section ===== */
        .section {
            padding: var(--space-section) 0;
        }
        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--brand);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-bottom: 12px;
            padding: 5px 14px;
            border-radius: 50px;
            background: var(--bg-soft);
        }
        .section-h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            letter-spacing: 0.01em;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-soft);
            line-height: 1.8;
            margin-top: 16px;
        }
        @media (max-width: 768px) {
            .section {
                --space-section: 64px;
            }
            .section-h2 {
                font-size: 26px;
            }
        }

        /* ===== Features ===== */
        .features {
            background: #ffffff;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            background: var(--bg);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--brand), var(--brand-light));
            opacity: 0;
            transition: opacity 0.3s;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(27, 77, 62, 0.15);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            font-size: 22px;
            margin-bottom: 22px;
            transition: all 0.3s;
        }
        .feature-card:hover .feature-icon {
            background: var(--brand);
            color: #fff;
        }
        .feature-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
        }
        .feature-text {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
        }
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Categories ===== */
        .categories {
            background: var(--bg-cream);
            position: relative;
            overflow: hidden;
        }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 380px;
            display: block;
            background: #fff;
            box-shadow: var(--shadow-sm);
            transition: all 0.35s ease;
        }
        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .category-img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover .category-img {
            transform: scale(1.05);
        }
        .category-body {
            padding: 26px;
        }
        .category-badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
            background: var(--bg-soft);
            color: var(--brand);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .category-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .category-desc {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
        }
        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--brand);
            margin-top: 16px;
            transition: all 0.25s;
        }
        .category-link i {
            font-size: 12px;
            transition: transform 0.25s;
        }
        .category-card:hover .category-link i {
            transform: translateX(4px);
        }
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .category-card {
                min-height: 0;
                display: grid;
                grid-template-columns: 260px 1fr;
            }
            .category-img {
                height: 100%;
                min-height: 200px;
            }
        }
        @media (max-width: 640px) {
            .category-card {
                display: block;
            }
            .category-img {
                height: 190px;
            }
        }

        /* ===== News ===== */
        .news-section {
            background: #ffffff;
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 26px 6px;
            border-bottom: 1px solid var(--border);
            transition: all 0.3s ease;
            border-radius: 12px;
        }
        .news-item:first-child {
            padding-top: 0;
        }
        .news-item:hover {
            background: var(--bg-soft);
            padding-left: 16px;
            padding-right: 16px;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 4px;
        }
        .news-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(27, 77, 62, 0.08);
            color: var(--brand);
        }
        .news-date {
            font-size: 13px;
            color: var(--text-muted);
        }
        .news-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            transition: color 0.25s;
        }
        .news-item:hover .news-title {
            color: var(--brand);
        }
        .news-desc {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-empty {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
            font-size: 15px;
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            background: var(--bg);
        }
        .news-sidebar {
            background: var(--bg-cream);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            position: sticky;
            top: 100px;
        }
        .sidebar-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
            padding-bottom: 14px;
            border-bottom: 2px solid var(--gold);
            display: inline-block;
        }
        .sidebar-list {
            list-style: none;
            padding: 0;
        }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px dashed rgba(0, 0, 0, 0.08);
            font-size: 14px;
            color: var(--text-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-list li i {
            color: var(--gold);
            font-size: 10px;
        }
        .sidebar-tip {
            margin-top: 24px;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 18px;
            font-size: 13px;
            color: var(--text-soft);
            line-height: 1.7;
            border: 1px solid rgba(0, 0, 0, 0.04);
        }
        .sidebar-tip i {
            color: var(--brand);
            margin-right: 4px;
        }
        @media (max-width: 1024px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
            }
        }

        /* ===== Steps ===== */
        .steps {
            background: linear-gradient(180deg, #faf9f7 0%, #f0f4f1 100%);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }
        .step-card {
            position: relative;
            text-align: center;
            padding: 40px 24px;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--brand);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 6px 20px rgba(27, 77, 62, 0.25);
        }
        .step-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
        }
        .step-text {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
        }
        .step-arrow {
            position: absolute;
            top: 50%;
            right: -22px;
            color: var(--gold);
            font-size: 14px;
            z-index: 2;
        }
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-arrow {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Stats band ===== */
        .stats-band {
            background: var(--brand-dark);
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-band::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(212, 168, 83, 0.08);
        }
        .stats-band::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: 20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 36px;
            position: relative;
            z-index: 2;
        }
        .stats-item {
            text-align: center;
            padding: 24px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(10px);
        }
        .stats-num {
            font-size: 40px;
            font-weight: 700;
            color: var(--gold);
            line-height: 1.2;
        }
        .stats-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
        }
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq {
            background: #ffffff;
        }
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            background: var(--bg);
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(27, 77, 62, 0.2);
        }
        .faq-item details {
            padding: 0;
        }
        .faq-item summary {
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            position: relative;
            transition: all 0.3s;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 13px;
            color: var(--brand);
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-item details[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item details[open] summary {
            border-bottom: 1px solid var(--border);
            background: #fff;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }
        .faq-answer {
            padding: 20px 28px;
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.8;
            background: #fff;
            border-radius: 0 0 var(--radius-md) var(--radius-md);
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            overflow: hidden;
            background: var(--brand-dark);
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.25;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .btn-cta {
            background: var(--gold);
            color: #1c1917;
            padding: 14px 40px;
            font-size: 16px;
            border-radius: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 30px rgba(212, 168, 83, 0.3);
            transition: all 0.3s ease;
        }
        .btn-cta:hover {
            background: var(--gold-light);
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 16px 40px rgba(212, 168, 83, 0.35);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 80px 0;
            }
            .cta-content h2 {
                font-size: 28px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0a241c;
            color: rgba(255, 255, 255, 0.6);
            padding: 70px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-brand .logo-text {
            color: #fff;
        }
        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 18px;
            max-width: 320px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-title {
            font-size: 15px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: all 0.25s;
        }
        .footer-links a:hover {
            color: var(--gold-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--gold-light);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Back to top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            box-shadow: 0 8px 24px rgba(27, 77, 62, 0.3);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all 0.4s ease;
        }
        .back-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            background: var(--brand-dark);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 40px;
                height: 40px;
            }
        }

        /* ===== Focus states ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
            border-radius: 8px;
        }

/* roulang page: category1 */
:root {
            --brand-600: #2b7357;
            --brand-700: #245b47;
            --brand-50: #f0f9f4;
            --accent-500: #ff7a1a;
            --bg-soft: #f7faf8;
            --text-main: #1e2f28;
            --text-muted: #5b6f66;
            --border-soft: #e5ede8;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: #ffffff;
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease, background .25s ease, box-shadow .25s ease;
        }

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

        button,
        input {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ===== Header ===== */
        .header-main {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid #eef3ef;
            box-shadow: 0 2px 20px rgba(27, 61, 52, 0.05);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 2rem;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, #2b7357, #3b8f6e);
            border-radius: 12px;
            color: #fff;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(43, 115, 87, 0.25);
        }

        .logo-text {
            display: block;
            font-size: 1.25rem;
            font-weight: 800;
            color: #1b3d34;
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .logo-sub {
            display: block;
            font-size: 0.6rem;
            font-weight: 600;
            color: #8aa39a;
            letter-spacing: 0.24em;
            line-height: 1;
            margin-top: 2px;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .nav-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 0.55rem 1.1rem;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #4c6359;
            transition: all .25s ease;
        }

        .nav-desktop a:hover {
            color: #2b7357;
            background: #f0f9f4;
        }

        .nav-desktop a.active {
            color: #2b7357;
            background: #e4f2ea;
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--brand-50);
            color: var(--brand-600);
            font-size: 1.1rem;
            align-items: center;
            justify-content: center;
            transition: background .2s;
        }

        .menu-toggle:hover {
            background: #e0efe6;
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid #eef3ef;
            padding: 0.75rem 1.5rem 1.25rem;
        }

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

        .mobile-menu nav {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .mobile-menu nav a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.8rem 1rem;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 500;
            color: #2c4239;
            transition: background .2s;
        }

        .mobile-menu nav a:hover {
            background: var(--brand-50);
        }

        .mobile-menu nav a.active {
            background: var(--brand-50);
            color: var(--brand-600);
            font-weight: 600;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 5rem 0 3.5rem;
            background: linear-gradient(180deg, #f0f9f4 0%, #ffffff 100%);
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 122, 26, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(43, 115, 87, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 122, 26, 0.1);
            color: #d65a05;
            font-size: 0.85rem;
            font-weight: 600;
            padding: 0.35rem 1rem;
            border-radius: 999px;
            margin-bottom: 1.25rem;
        }

        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #1b3d34;
            line-height: 1.25;
            letter-spacing: 0.01em;
            max-width: 720px;
            margin-bottom: 1rem;
        }

        .page-hero p.hero-desc {
            font-size: 1.1rem;
            color: #5b6f66;
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.9rem;
            color: #6a7f75;
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .hero-meta i {
            color: var(--brand-600);
        }

        /* ===== Section Base ===== */
        .section {
            padding: 5rem 0;
        }

        .section-bg-soft {
            background: #f7faf8;
        }

        .section-bg-deep {
            background: linear-gradient(180deg, #1b3d34, #245b47);
            color: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 3rem;
        }

        .section-head .section-tag {
            display: inline-block;
            background: var(--brand-50);
            color: var(--brand-600);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 0.3rem 0.9rem;
            border-radius: 999px;
            margin-bottom: 0.75rem;
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #1b3d34;
            line-height: 1.3;
            margin-bottom: 0.75rem;
        }

        .section-head p {
            color: #5b6f66;
            font-size: 1rem;
            line-height: 1.75;
        }

        .section-head-light .section-tag {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .section-head-light h2 {
            color: #fff;
        }

        .section-head-light p {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ===== Cards Grid ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }

        .guide-card {
            background: #fff;
            border-radius: 1.25rem;
            padding: 2rem 1.5rem;
            border: 1px solid #eef3ef;
            box-shadow: var(--card-shadow, 0 4px 24px rgba(27, 61, 52, 0.06));
            transition: transform .3s ease, box-shadow .3s ease;
            position: relative;
            overflow: hidden;
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 36px rgba(27, 61, 52, 0.12);
        }

        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #2b7357, #ff7a1a);
            opacity: 0;
            transition: opacity .3s;
        }

        .guide-card:hover::before {
            opacity: 1;
        }

        .guide-card .card-icon {
            width: 54px;
            height: 54px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 1.25rem;
            background: var(--brand-50);
            color: var(--brand-600);
        }

        .guide-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #1b3d34;
            margin-bottom: 0.5rem;
        }

        .guide-card p {
            color: #5b6f66;
            font-size: 0.93rem;
            line-height: 1.7;
        }

        /* ===== Content Rows ===== */
        .content-feature {
            display: flex;
            align-items: center;
            gap: 3.5rem;
            margin-bottom: 4rem;
        }

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

        .content-feature.reverse {
            flex-direction: row-reverse;
        }

        .content-media {
            flex: 0 0 46%;
            border-radius: 1.5rem;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(27, 61, 52, 0.15);
            position: relative;
        }

        .content-media img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .content-media:hover img {
            transform: scale(1.03);
        }

        .content-text {
            flex: 1;
        }

        .content-text h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: #1b3d34;
            margin-bottom: 0.75rem;
            line-height: 1.35;
        }

        .content-text p {
            color: #5b6f66;
            margin-bottom: 1rem;
            line-height: 1.8;
        }

        .content-text ul {
            list-style: none;
            padding: 0;
        }

        .content-text ul li {
            position: relative;
            padding-left: 1.75rem;
            margin-bottom: 0.55rem;
            color: #4c6359;
            font-size: 0.95rem;
        }

        .content-text ul li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--brand-500);
            font-size: 0.85rem;
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .step-item {
            text-align: center;
            padding: 2rem 1.25rem;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 1.25rem;
            transition: background .3s, border-color .3s;
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.25);
        }

        .step-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            margin: 0 auto 1rem;
            border-radius: 50%;
            background: #ff7a1a;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            box-shadow: 0 4px 16px rgba(255, 122, 26, 0.35);
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 0.5rem;
        }

        .step-item p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.87rem;
            line-height: 1.6;
        }

        /* ===== Info List ===== */
        .info-panel {
            background: #fff;
            border-radius: 1.5rem;
            box-shadow: 0 8px 32px rgba(27, 61, 52, 0.08);
            border: 1px solid #eef3ef;
            padding: 2.5rem;
            overflow: hidden;
        }

        .info-panel h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #1b3d34;
            margin-bottom: 1.25rem;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid var(--brand-50);
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .info-panel h3 i {
            color: var(--brand-500);
        }

        .info-panel-list {
            list-style: none;
            padding: 0;
        }

        .info-panel-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.9rem;
            padding: 0.8rem 0;
            border-bottom: 1px dashed #eef3ef;
            font-size: 0.95rem;
            color: #4c6359;
        }

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

        .info-panel-list li i {
            color: var(--brand-500);
            margin-top: 0.3rem;
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .info-panel-list li strong {
            color: #1b3d34;
            font-weight: 600;
            margin-right: 0.25rem;
        }

        .info-grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid #eef3ef;
            border-radius: 1rem;
            margin-bottom: 1rem;
            overflow: hidden;
            transition: box-shadow .3s;
        }

        .faq-item:hover {
            box-shadow: 0 6px 24px rgba(27, 61, 52, 0.08);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.25rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: #1b3d34;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            background: none;
            cursor: pointer;
            transition: background .2s;
        }

        .faq-question:hover {
            background: #fafdfb;
        }

        .faq-question i {
            color: #8aa39a;
            font-size: 0.9rem;
            transition: transform .3s;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--brand-600);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            padding: 0 1.5rem;
            color: #5b6f66;
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 1.25rem;
        }

        /* ===== CTA ===== */
        .cta-block {
            text-align: center;
            background: linear-gradient(135deg, #1b3d34 0%, #2b7357 100%);
            border-radius: 2rem;
            padding: 3.5rem 2.5rem;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-block::after {
            content: '\f6b1';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            bottom: 20px;
            left: 30px;
            font-size: 6rem;
            color: rgba(255, 255, 255, 0.04);
        }

        .cta-block h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            position: relative;
            z-index: 2;
        }

        .cta-block p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto 2rem;
            font-size: 1rem;
            position: relative;
            z-index: 2;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: #ff7a1a;
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            padding: 0.9rem 2.2rem;
            border-radius: 999px;
            transition: all .3s ease;
            box-shadow: 0 6px 20px rgba(255, 122, 26, 0.35);
            position: relative;
            z-index: 2;
        }

        .cta-btn:hover {
            background: #ff8c3a;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 122, 26, 0.45);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #142e26;
            color: #a8c2b7;
            padding: 4rem 0 0;
            border-top: 4px solid #25513f;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 0.8fr 0.8fr;
            gap: 3rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-brand .logo-icon {
            background: linear-gradient(135deg, #ff7a1a, #ff9a3d);
            box-shadow: 0 4px 16px rgba(255, 122, 26, 0.3);
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.75;
            color: #8aa69c;
            margin-top: 1.25rem;
            max-width: 360px;
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1.25rem;
            letter-spacing: 0.04em;
        }

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

        .footer-links li {
            margin-bottom: 0.6rem;
        }

        .footer-links a,
        .footer-links span {
            color: #8aa69c;
            font-size: 0.9rem;
            transition: color .25s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.5rem 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.75rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color .25s;
        }

        .footer-bottom a:hover {
            color: #ff7a1a;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 0.15rem;
            }

            .nav-desktop a {
                padding: 0.5rem 0.85rem;
                font-size: 0.9rem;
            }

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

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

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .header-inner {
                height: 64px;
            }

            .page-hero {
                padding: 3.5rem 0 2.5rem;
            }

            .page-hero h1 {
                font-size: 1.9rem;
            }

            .page-hero p.hero-desc {
                font-size: 1rem;
            }

            .section {
                padding: 3.5rem 0;
            }

            .section-head h2 {
                font-size: 1.6rem;
            }

            .content-feature,
            .content-feature.reverse {
                flex-direction: column;
                gap: 1.75rem;
            }

            .content-media {
                flex: none;
                width: 100%;
            }

            .guide-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .info-grid-2 {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }

            .cta-block {
                padding: 2.5rem 1.5rem;
            }

            .cta-block h3 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }

            .hero-meta {
                flex-direction: column;
                gap: 0.5rem;
            }

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

            .info-panel {
                padding: 1.5rem;
            }

            .content-media img {
                height: 220px;
            }
        }

        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

/* roulang page: article */
:root {
            --brand: #02804b;
            --brand-dark: #065f46;
            --brand-light: #10b981;
            --brand-soft: #ecfdf5;
            --accent: #f59e0b;
            --accent-soft: #fffbeb;
            --ink: #0f172a;
            --text: #334155;
            --muted: #64748b;
            --faint: #94a3b8;
            --bg: #f8fafc;
            --surface: #ffffff;
            --line: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(2, 128, 75, 0.08);
            --shadow-hover: 0 18px 44px rgba(2, 128, 75, 0.16);
            --transition: all 0.3s ease;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        ul, ol { list-style: none; }
        button { border: none; background: none; cursor: pointer; font-family: inherit; }
        input, textarea { font-family: inherit; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .w-full { width: 100%; }

        /* ===== Header ===== */
        .header-main {
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 16px rgba(2, 128, 75, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 24px;
        }
        .logo { display: inline-flex; align-items: center; gap: 12px; }
        .logo-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--brand), var(--brand-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 6px 16px rgba(2, 128, 75, 0.3);
        }
        .logo-text { font-size: 20px; font-weight: 800; color: var(--ink); letter-spacing: 0.02em; line-height: 1.2; }
        .logo-sub { display: block; font-size: 11px; letter-spacing: 0.22em; color: var(--faint); margin-top: 2px; }
        .nav-desktop { display: flex; align-items: center; gap: 6px; }
        .nav-desktop a { padding: 10px 18px; border-radius: 999px; font-size: 15px; font-weight: 600; color: var(--muted); }
        .nav-desktop a:hover { color: var(--brand); background: var(--brand-soft); }
        .nav-desktop a.active { color: var(--brand); background: var(--brand-soft); }
        .header-actions { display: flex; align-items: center; gap: 12px; }
        .menu-toggle { display: none; font-size: 22px; color: var(--ink); padding: 8px; border-radius: 8px; text-align: center; }
        .menu-toggle:hover { background: var(--brand-soft); color: var(--brand); }
        .mobile-menu { display: none; background: var(--surface); border-top: 1px solid var(--line); padding: 16px 24px 24px; }
        .mobile-menu.open { display: block; }
        .mobile-menu nav { display: flex; flex-direction: column; gap: 6px; }
        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }
        .mobile-menu a:hover { background: var(--brand-soft); color: var(--brand); }
        .mobile-menu a.active { background: var(--brand-soft); color: var(--brand); }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            padding: 90px 0 84px;
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }
        .article-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(6, 78, 59, 0.93) 0%, rgba(2, 128, 75, 0.84) 48%, rgba(16, 185, 129, 0.74) 100%);
        }
        .article-banner .container { position: relative; z-index: 2; }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 22px;
            flex-wrap: wrap;
        }
        .breadcrumb a:hover { color: #fff; text-decoration: underline; }
        .breadcrumb .current { color: #fff; font-weight: 600; }
        .breadcrumb i { font-size: 12px; }
        .article-banner h1 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.3;
            max-width: 860px;
            margin-bottom: 20px;
            color: #fff;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
        }
        .article-hero-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.92);
        }
        .article-hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
        .hero-badge {
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.28);
            padding: 5px 14px;
            border-radius: 999px;
        }
        .hero-wave {
            position: absolute;
            left: 0;
            right: 0;
            bottom: -1px;
            z-index: 1;
            width: 100%;
            height: 60px;
            display: block;
        }

        /* ===== Article Layout ===== */
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 760px) minmax(280px, 1fr);
            gap: 40px;
            padding: 56px 24px 80px;
            align-items: start;
        }
        .article-main { min-width: 0; }
        .article-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .article-cover { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 28px 36px 0;
            flex-wrap: wrap;
        }
        .cat-badge {
            background: var(--brand-soft);
            color: var(--brand);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 999px;
        }
        .meta-item { font-size: 13px; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
        .article-body {
            padding: 24px 36px 36px;
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-body h2 { font-size: 24px; margin: 34px 0 14px; color: var(--ink); padding-left: 14px; border-left: 4px solid var(--brand); }
        .article-body h3 { font-size: 19px; margin: 26px 0 10px; color: var(--ink); }
        .article-body p { margin-bottom: 18px; }
        .article-body a { color: var(--brand); border-bottom: 1px dashed var(--brand); }
        .article-body a:hover { color: var(--brand-dark); }
        .article-body img { border-radius: var(--radius-sm); margin: 20px 0; }
        .article-body ul, .article-body ol { margin: 0 0 18px 24px; }
        .article-body ul { list-style: disc; }
        .article-body ol { list-style: decimal; }
        .article-body li { margin-bottom: 8px; }
        .article-body blockquote {
            border-left: 4px solid var(--brand);
            background: var(--brand-soft);
            padding: 16px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            color: var(--muted);
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 20px 36px 28px;
            border-top: 1px solid var(--line);
            margin-top: 8px;
            flex-wrap: wrap;
        }
        .article-share span { font-size: 14px; color: var(--muted); font-weight: 600; }
        .share-btn {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: var(--bg);
            color: var(--muted);
            border: 1px solid var(--line);
            transition: var(--transition);
        }
        .share-btn:hover { background: var(--brand); color: #fff; border-color: var(--brand); transform: translateY(-2px); }

        /* ===== Not Found ===== */
        .not-found { text-align: center; padding: 90px 40px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
        .not-found-icon {
            width: 88px;
            height: 88px;
            margin: 0 auto 24px;
            border-radius: 50%;
            background: var(--brand-soft);
            color: var(--brand);
            font-size: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .not-found h2 { font-size: 26px; font-weight: 800; color: var(--ink); margin-bottom: 12px; }
        .not-found p { color: var(--muted); margin-bottom: 28px; }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--brand), var(--brand-light));
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 999px;
            box-shadow: 0 8px 22px rgba(2, 128, 75, 0.28);
            transition: var(--transition);
        }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(2, 128, 75, 0.36); color: #fff; }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1.5px solid var(--brand);
            color: var(--brand);
            font-weight: 700;
            font-size: 14px;
            padding: 11px 26px;
            border-radius: 999px;
            transition: var(--transition);
            background: transparent;
        }
        .btn-outline:hover { background: var(--brand); color: #fff; }

        /* ===== Sidebar ===== */
        .article-sidebar { display: flex; flex-direction: column; gap: 24px; }
        .side-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 26px;
            box-shadow: var(--shadow);
        }
        .side-title {
            font-size: 17px;
            font-weight: 800;
            color: var(--ink);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }
        .side-title i { color: var(--brand); font-size: 18px; }
        .side-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }
        .about-card p { font-size: 14px; color: var(--muted); margin-bottom: 16px; line-height: 1.75; }
        .side-nav li { border-bottom: 1px dashed var(--line); }
        .side-nav li:last-child { border-bottom: none; }
        .side-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 4px;
            color: var(--text);
            font-weight: 600;
            font-size: 14px;
        }
        .side-nav a i { color: var(--brand); width: 20px; text-align: center; }
        .side-nav a .arrow { margin-left: auto; opacity: 0; transform: translateX(-6px); transition: var(--transition); }
        .side-nav a:hover { color: var(--brand); padding-left: 10px; }
        .side-nav a:hover .arrow { opacity: 1; transform: translateX(0); }
        .side-news li { padding: 14px 0; border-bottom: 1px dashed var(--line); }
        .side-news li:last-child { border-bottom: none; }
        .side-news a {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .side-news a:hover { color: var(--brand); }
        .side-date { display: block; font-size: 12px; color: var(--faint); margin-top: 4px; }
        .side-date i { margin-right: 4px; }

        /* ===== Related ===== */
        .related-section { background: var(--surface); padding: 80px 0; border-top: 1px solid var(--line); }
        .section-head { text-align: center; margin-bottom: 44px; }
        .section-head h2 { font-size: 30px; font-weight: 800; color: var(--ink); margin-bottom: 10px; }
        .section-head h2 span { color: var(--brand); }
        .section-head p { color: var(--muted); font-size: 15px; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(2, 128, 75, 0.25); }
        .related-thumb { aspect-ratio: 16 / 10; overflow: hidden; }
        .related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
        .related-card:hover .related-thumb img { transform: scale(1.06); }
        .related-body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
        .card-tag {
            align-self: flex-start;
            background: var(--brand-soft);
            color: var(--brand);
            font-size: 12px;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .related-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-body h3:hover { color: var(--brand); }
        .related-body p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== FAQ ===== */
        .faq-section { padding: 80px 0; }
        .faq-grid { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::before {
            content: "";
            flex: none;
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--brand);
        }
        .faq-item[open] { border-color: rgba(2, 128, 75, 0.3); box-shadow: var(--shadow); }
        .faq-answer { padding: 0 24px 22px 47px; color: var(--muted); font-size: 14px; line-height: 1.8; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(120deg, var(--brand-dark), var(--brand));
            border-radius: 24px;
            max-width: 1000px;
            margin: 0 auto 80px;
            padding: 60px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            top: -160px;
            right: -90px;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.07);
            bottom: -90px;
            left: -40px;
        }
        .cta-section h2 { font-size: 30px; font-weight: 800; margin-bottom: 12px; position: relative; z-index: 2; }
        .cta-section p { color: rgba(255, 255, 255, 0.9); margin-bottom: 28px; position: relative; z-index: 2; }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--brand-dark);
            font-weight: 800;
            padding: 15px 38px;
            border-radius: 999px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
            transition: var(--transition);
            position: relative;
            z-index: 2;
        }
        .cta-btn:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.24); color: var(--brand-dark); }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b1120;
            color: #94a3b8;
            padding: 70px 0 36px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo-text { color: #fff; }
        .footer-brand .logo-sub { color: rgba(255, 255, 255, 0.4); }
        .footer-desc { font-size: 14px; line-height: 1.8; margin-top: 18px; max-width: 360px; color: #94a3b8; }
        .footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 20px; }
        .footer-links li { margin-bottom: 12px; }
        .footer-links a { font-size: 14px; color: #94a3b8; transition: var(--transition); }
        .footer-links a:hover { color: #fff; padding-left: 4px; }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 30px;
            font-size: 13px;
            color: #64748b;
        }
        .footer-bottom a { color: #94a3b8; }
        .footer-bottom a:hover { color: #fff; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; padding: 40px 20px 64px; }
            .article-sidebar { display: grid; grid-template-columns: repeat(2, 1fr); align-items: stretch; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .header-inner { height: 68px; }
            .nav-desktop { display: none; }
            .menu-toggle { display: inline-flex; }
            .article-banner { padding: 56px 0 52px; }
            .article-banner h1 { font-size: 26px; }
            .article-hero-meta { gap: 10px 18px; }
            .hero-wave { height: 40px; }
            .article-body { padding: 20px 24px 30px; }
            .article-meta { padding: 22px 24px 0; }
            .article-share { padding: 18px 24px 24px; }
            .article-sidebar { grid-template-columns: 1fr; }
            .related-section { padding: 56px 0; }
            .faq-section { padding: 56px 0; }
            .cta-section { padding: 44px 28px; border-radius: 20px; margin-bottom: 56px; }
            .cta-section h2 { font-size: 24px; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 18px; }
            .header-inner { gap: 12px; }
            .logo-text { font-size: 17px; }
            .logo-icon { width: 38px; height: 38px; font-size: 16px; }
            .related-grid { grid-template-columns: 1fr; }
            .section-head h2 { font-size: 24px; }
            .article-layout { padding: 32px 16px 48px; }
            .breadcrumb { font-size: 13px; gap: 7px; }
            .not-found { padding: 60px 24px; }
            .faq-item summary { font-size: 15px; padding: 18px; }
            .faq-answer { padding: 0 18px 20px 40px; }
        }

/* roulang page: category2 */
:root {
            --brand-50: #effaf7;
            --brand-100: #c9f0e6;
            --brand-200: #94e0ce;
            --brand-300: #5cc6b0;
            --brand-400: #2fa391;
            --brand-500: #1e8577;
            --brand-600: #176b61;
            --brand-700: #15574f;
            --brand-800: #134641;
            --brand-900: #113a37;
            --accent-400: #e5b56a;
            --accent-500: #d49a45;
            --cream: #faf8f3;
            --dark: #1b2a28;
            --text-main: #22302e;
            --text-muted: #647874;
            --border-light: #e7edea;
            --radius-lg: 1.25rem;
            --radius-md: 0.875rem;
            --shadow-card: 0 10px 30px rgba(27, 42, 40, 0.06);
            --shadow-hover: 0 18px 40px rgba(27, 42, 40, 0.12);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            background: var(--cream);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

        button {
            font-family: inherit;
            background: none;
            border: none;
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ===== Header / Nav ===== */
        .header-main {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 4px 20px rgba(27, 42, 40, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            min-height: 72px;
            padding-top: 0.5rem;
            padding-bottom: 0.5rem;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 0.7rem;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--brand-600), var(--brand-400));
            color: #fff;
            font-size: 1.1rem;
            box-shadow: 0 8px 20px rgba(23, 107, 97, 0.25);
        }

        .logo-text {
            display: block;
            font-size: 1.22rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            background: linear-gradient(120deg, var(--brand-800), var(--brand-500));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }

        .logo-sub {
            display: block;
            font-size: 0.6rem;
            letter-spacing: 0.22em;
            color: var(--text-muted);
            font-weight: 500;
            line-height: 1.2;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .nav-desktop a {
            position: relative;
            padding: 0.5rem 1rem;
            border-radius: 999px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-main);
            transition: color 0.25s, background 0.25s;
        }

        .nav-desktop a:hover {
            color: var(--brand-600);
            background: rgba(30, 133, 119, 0.07);
        }

        .nav-desktop a.active {
            color: #fff;
            background: var(--brand-600);
            box-shadow: 0 6px 16px rgba(23, 107, 97, 0.25);
        }

        .header-actions {
            display: flex;
            align-items: center;
        }

        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(30, 133, 119, 0.08);
            color: var(--brand-700);
            font-size: 1.1rem;
            align-items: center;
            justify-content: center;
        }

        .mobile-menu {
            display: none;
            border-top: 1px solid var(--border-light);
            background: #fff;
        }

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

        .mobile-menu nav {
            padding: 0.75rem 1rem 1.25rem;
        }

        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.8rem 0.85rem;
            border-radius: 12px;
            font-weight: 500;
            color: var(--text-main);
            transition: background 0.2s, color 0.2s;
        }

        .mobile-menu a:hover {
            background: rgba(30, 133, 119, 0.06);
            color: var(--brand-600);
        }

        .mobile-menu a.active {
            background: rgba(30, 133, 119, 0.1);
            color: var(--brand-700);
        }

        .mobile-menu i {
            width: 1.25rem;
            text-align: center;
            color: var(--brand-600);
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.55rem;
            padding: 0.85rem 1.75rem;
            border-radius: 999px;
            background: var(--brand-600);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 10px 24px rgba(23, 107, 97, 0.28);
            transition: all 0.25s;
            border: none;
        }

        .btn-primary:hover {
            background: var(--brand-700);
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(23, 107, 97, 0.34);
        }

        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            gap: 0.55rem;
            padding: 0.85rem 1.75rem;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.5);
            backdrop-filter: blur(6px);
            transition: all 0.25s;
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.24);
            transform: translateY(-2px);
        }

        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 0.55rem;
            padding: 0.85rem 1.75rem;
            border-radius: 999px;
            background: #fff;
            color: var(--brand-700);
            font-weight: 700;
            box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
            transition: all 0.25s;
        }

        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(0, 0, 0, 0.2);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.55rem;
            padding: 0.85rem 1.75rem;
            border-radius: 999px;
            background: transparent;
            color: #fff;
            font-weight: 700;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            transition: all 0.25s;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.16);
            transform: translateY(-2px);
        }

        /* ===== Tag / Badge ===== */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.35rem 0.9rem;
            border-radius: 999px;
            background: rgba(30, 133, 119, 0.1);
            color: var(--brand-700);
            font-size: 0.78rem;
            font-weight: 600;
            line-height: 1.4;
        }

        .tag-pill.text-light {
            background: rgba(255, 255, 255, 0.16);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        /* ===== Card ===== */
        .card-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .card-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .subsection-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 2rem 1.75rem;
            transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
        }

        .subsection-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(30, 133, 119, 0.25);
        }

        .subsection-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--brand-50), var(--brand-100));
            color: var(--brand-600);
            font-size: 1.5rem;
            transition: transform 0.3s;
        }

        .subsection-card:hover .subsection-icon {
            transform: scale(1.06) rotate(-3deg);
        }

        /* ===== Stats ===== */
        .stat-section {
            background: linear-gradient(120deg, var(--brand-900), var(--brand-800) 60%, var(--brand-700));
            position: relative;
            overflow: hidden;
        }

        .stat-section::after {
            content: '';
            position: absolute;
            right: -80px;
            bottom: -80px;
            width: 260px;
            height: 260px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.05);
        }

        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent-400);
            line-height: 1.2;
        }

        .stat-label {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.92rem;
        }

        /* ===== Workflow ===== */
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 3.75rem;
            height: 3.75rem;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand-100), var(--brand-200));
            color: var(--brand-700);
            font-weight: 800;
            font-size: 1.2rem;
            box-shadow: 0 6px 16px rgba(30, 133, 119, 0.12);
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            background: #fff;
            overflow: hidden;
            transition: box-shadow 0.3s, border-color 0.3s;
        }

        .faq-item.active {
            border-color: rgba(30, 133, 119, 0.35);
            box-shadow: 0 12px 30px rgba(30, 133, 119, 0.1);
        }

        .faq-q {
            padding: 1.2rem 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            cursor: pointer;
            font-size: 1rem;
            transition: color 0.2s;
        }

        .faq-q:hover {
            color: var(--brand-600);
        }

        .faq-q i {
            transition: transform 0.35s;
            color: var(--text-muted);
        }

        .faq-item.active .faq-q i {
            transform: rotate(180deg);
            color: var(--brand-600);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            padding: 0 1.5rem;
            transition: max-height 0.4s ease, padding 0.4s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        .faq-item.active .faq-a {
            max-height: 320px;
            padding-bottom: 1.4rem;
        }

        /* ===== CTA ===== */
        .cta-card {
            background: linear-gradient(125deg, var(--brand-900), var(--brand-700) 55%, var(--brand-500));
            box-shadow: 0 24px 60px rgba(23, 107, 97, 0.32);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-card::after {
            content: '';
            position: absolute;
            left: -30px;
            bottom: -80px;
            width: 160px;
            height: 160px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.72);
            padding-top: 4rem;
            padding-bottom: 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 3rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo-text {
            -webkit-text-fill-color: #fff;
            background: none;
            color: #fff;
        }

        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-brand .logo-icon {
            background: linear-gradient(135deg, var(--brand-500), var(--brand-400));
        }

        .footer-desc {
            margin-top: 1rem;
            font-size: 0.9rem;
            line-height: 1.75;
            max-width: 360px;
        }

        .footer-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.25s;
            font-size: 0.9rem;
        }

        .footer-links a:hover {
            color: var(--accent-400);
        }

        .footer-links span {
            font-size: 0.9rem;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 0.75rem;
            padding-top: 1.75rem;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-bottom a:hover {
            color: var(--accent-400);
        }

        /* ===== Hero ===== */
        .hero-banner {
            position: relative;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            color: #fff;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(17, 58, 55, 0.92), rgba(17, 58, 55, 0.55) 60%, rgba(17, 58, 55, 0.7));
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero-wave {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 2;
            line-height: 0;
        }

        .hero-wave svg {
            display: block;
        }

        /* ===== Misc ===== */
        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.01em;
        }

        .text-muted-2 {
            color: var(--text-muted);
        }

        .img-card-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .img-card-cover img {
            transition: transform 0.5s ease;
        }

        .img-card-cover:hover img {
            transform: scale(1.05);
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
        }

        .feature-list li i {
            margin-top: 0.35rem;
            color: var(--brand-500);
        }

        .focus\:outline-none:focus {
            outline: 2px solid rgba(30, 133, 119, 0.4);
            outline-offset: 2px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }

            .footer-brand {
                grid-column: span 2;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }

            .menu-toggle {
                display: inline-flex;
            }

            .mobile-menu {
                display: block;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.75rem;
            }

            .footer-brand {
                grid-column: span 1;
            }

            .stat-number {
                font-size: 2rem;
            }

            .hero-content {
                padding-top: 4rem;
                padding-bottom: 4.5rem;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                min-height: 62px;
            }

            .logo-text {
                font-size: 1.05rem;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
                border-radius: 10px;
            }

            .subsection-card {
                padding: 1.5rem 1.2rem;
            }

            .stat-number {
                font-size: 1.75rem;
            }

            .hero-content h1 {
                font-size: 2rem;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --brand-600: #0f766e;
            --brand-700: #115e59;
            --brand-800: #134e4a;
            --accent-500: #f59e0b;
            --accent-600: #d97706;
            --ink-900: #1c1917;
            --ink-700: #44403c;
            --ink-500: #78716c;
            --bg-soft: #fafaf9;
            --bg-card: #ffffff;
            --border-soft: #e7e5e4;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, .04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, .06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, .08);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.7;
            color: var(--ink-900);
            background: var(--bg-soft);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }
        button {
            border: none;
            cursor: pointer;
            font-family: inherit;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(245, 158, 11, .55);
            outline-offset: 2px;
            border-radius: 8px;
        }

        /* Header */
        .header-main {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-soft);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 24px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: linear-gradient(135deg, #0f766e, #134e4a);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            box-shadow: 0 6px 16px rgba(15, 118, 110, .28);
        }
        .logo-text {
            display: block;
            font-size: 20px;
            font-weight: 800;
            color: var(--ink-900);
            letter-spacing: .02em;
            line-height: 1.2;
        }
        .logo-sub {
            display: block;
            font-size: 11px;
            letter-spacing: .16em;
            color: var(--ink-500);
            font-weight: 600;
            line-height: 1.4;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-desktop a {
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink-700);
            transition: all .2s ease;
        }
        .nav-desktop a:hover {
            background: #f0fdfa;
            color: var(--brand-700);
        }
        .nav-desktop a.active {
            background: var(--brand-600);
            color: #fff;
            box-shadow: 0 4px 12px rgba(15, 118, 110, .28);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: #f5f5f4;
            color: var(--ink-900);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: background .2s;
        }
        .menu-toggle:hover {
            background: #e7e5e4;
        }
        .mobile-menu {
            display: none;
            padding: 12px 20px 24px;
            border-top: 1px solid var(--border-soft);
            background: #fff;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-menu nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: 14px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink-700);
            background: #fafaf9;
        }
        .mobile-menu nav a.active {
            background: #f0fdfa;
            color: var(--brand-700);
        }

        /* Hero */
        .wiki-hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 100px 0 88px;
            overflow: hidden;
        }
        .wiki-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, .78), rgba(15, 118, 110, .64));
            z-index: 1;
        }
        .wiki-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .16);
            border: 1px solid rgba(255, 255, 255, .28);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .08em;
        }
        .hero-title {
            font-size: clamp(30px, 5vw, 50px);
            font-weight: 800;
            line-height: 1.18;
            color: #fff;
            margin-top: 18px;
            letter-spacing: .01em;
        }
        .hero-sub {
            font-size: clamp(16px, 2vw, 19px);
            color: rgba(255, 255, 255, .88);
            max-width: 660px;
            margin-top: 16px;
            line-height: 1.8;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            transition: all .25s ease;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--brand-600);
            color: #fff;
            box-shadow: 0 6px 18px rgba(15, 118, 110, .3);
        }
        .btn-primary:hover {
            background: var(--brand-700);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(15, 118, 110, .35);
        }
        .btn-light {
            background: #fff;
            color: var(--brand-700);
            box-shadow: 0 4px 14px rgba(0, 0, 0, .08);
        }
        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, .12);
        }

        /* Section */
        .section {
            padding: 84px 0;
        }
        .section-title {
            font-size: clamp(26px, 3vw, 36px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: .01em;
        }
        .section-sub {
            color: var(--ink-500);
            font-size: 16px;
            max-width: 560px;
            margin-top: 10px;
            line-height: 1.8;
        }
        .section-head {
            margin-bottom: 44px;
        }

        /* Cards */
        .card-wiki {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            overflow: hidden;
            transition: all .3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-wiki:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(15, 118, 110, .28);
        }
        .card-wiki-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .card-wiki-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .card-wiki:hover .card-wiki-img img {
            transform: scale(1.05);
        }
        .card-wiki-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, .16), transparent 60%);
        }
        .card-wiki-body {
            padding: 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-wiki-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .card-wiki-body p {
            color: var(--ink-500);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .card-link {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand-600);
            font-size: 14px;
            font-weight: 700;
            transition: gap .2s ease;
        }
        .card-link:hover {
            gap: 12px;
            color: var(--brand-700);
        }

        .wiki-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 999px;
            background: #f0fdfa;
            color: var(--brand-700);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .04em;
            margin-bottom: 14px;
            align-self: flex-start;
        }

        /* Pills */
        .pill-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .pill {
            padding: 10px 22px;
            border-radius: 999px;
            background: #fff;
            border: 1px solid var(--border-soft);
            color: var(--ink-700);
            font-size: 14px;
            font-weight: 600;
            transition: all .2s ease;
            cursor: pointer;
        }
        .pill:hover {
            border-color: var(--brand-600);
            color: var(--brand-700);
            background: #f0fdfa;
            transform: translateY(-1px);
        }
        .pill.active {
            background: var(--brand-600);
            border-color: var(--brand-600);
            color: #fff;
            box-shadow: 0 4px 12px rgba(15, 118, 110, .25);
        }

        /* Rank list */
        .rank-list {
            counter-reset: rank;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 22px;
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border-soft);
            margin-bottom: 14px;
            transition: all .25s ease;
        }
        .rank-item:hover {
            border-color: rgba(15, 118, 110, .3);
            box-shadow: var(--shadow-md);
            transform: translateX(5px);
        }
        .rank-num {
            width: 46px;
            height: 46px;
            flex-shrink: 0;
            border-radius: 14px;
            background: linear-gradient(135deg, #f0fdfa, #ccfbf1);
            color: var(--brand-700);
            font-weight: 800;
            font-size: 18px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .rank-item:nth-child(1) .rank-num {
            background: linear-gradient(135deg, #fef3c7, #fde68a);
            color: #92400e;
        }
        .rank-item:nth-child(2) .rank-num {
            background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
            color: #334155;
        }
        .rank-item:nth-child(3) .rank-num {
            background: linear-gradient(135deg, #fed7aa, #fdba74);
            color: #7c2d12;
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-info h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-info span {
            font-size: 13px;
            color: var(--ink-500);
        }
        .rank-arrow {
            color: var(--brand-600);
            font-size: 18px;
            opacity: 0;
            transform: translateX(-6px);
            transition: all .25s ease;
        }
        .rank-item:hover .rank-arrow {
            opacity: 1;
            transform: translateX(0);
        }

        /* Feature */
        .feature-img {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .feature-list {
            list-style: none;
            margin-top: 20px;
        }
        .feature-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 14px 0;
            border-bottom: 1px dashed var(--border-soft);
            font-size: 15px;
            color: var(--ink-700);
        }
        .feature-list li i {
            color: var(--brand-600);
            margin-top: 4px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border-radius: 18px;
            border: 1px solid var(--border-soft);
            padding: 26px 28px;
            margin-bottom: 16px;
            transition: all .25s ease;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 118, 110, .24);
        }
        .faq-q {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 17px;
            font-weight: 700;
            color: var(--ink-900);
        }
        .faq-q i {
            color: var(--brand-600);
            font-size: 18px;
            width: 24px;
            text-align: center;
        }
        .faq-a {
            margin-top: 14px;
            padding-left: 38px;
            color: var(--ink-500);
            font-size: 15px;
            line-height: 1.85;
        }

        /* CTA */
        .cta-section {
            position: relative;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 96px 0;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(12, 28, 38, .85), rgba(15, 118, 110, .82));
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            color: #fff;
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.3;
        }
        .cta-section p {
            color: rgba(255, 255, 255, .85);
            font-size: 17px;
            max-width: 600px;
            margin: 16px auto 32px;
            line-height: 1.8;
        }

        /* Footer */
        .site-footer {
            background: #0c1519;
            color: rgba(255, 255, 255, .7);
            padding: 70px 0 0;
            border-top: 3px solid rgba(15, 118, 110, .45);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand .logo {
            margin-bottom: 18px;
        }
        .footer-brand .logo-icon {
            background: linear-gradient(135deg, #0f766e, #0d9488);
        }
        .footer-brand .logo-text {
            color: #fff;
        }
        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, .5);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            max-width: 360px;
        }
        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            letter-spacing: .04em;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 32px;
            height: 3px;
            border-radius: 3px;
            background: var(--brand-600);
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: color .2s;
        }
        .footer-links a:hover {
            color: #5eead4;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .55);
        }
        .footer-bottom a:hover {
            color: #5eead4;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-desktop {
                gap: 4px;
            }
            .nav-desktop a {
                padding: 8px 14px;
                font-size: 14px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 68px;
            }
            .nav-desktop {
                display: none;
            }
            .menu-toggle {
                display: inline-flex;
            }
            .mobile-menu {
                display: none;
            }
            .section {
                padding: 64px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .wiki-hero {
                padding: 66px 0 56px;
            }
            .hero-title {
                font-size: 32px;
            }
            .cta-section {
                padding: 64px 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .logo-text {
                font-size: 17px;
            }
            .logo-sub {
                font-size: 10px;
            }
            .card-wiki-body {
                padding: 20px;
            }
            .rank-item {
                padding: 14px 16px;
                gap: 14px;
            }
            .rank-num {
                width: 40px;
                height: 40px;
                font-size: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                padding: 20px 0;
            }
            .faq-item {
                padding: 20px 18px;
            }
            .faq-a {
                padding-left: 0;
            }
        }