/* roulang page: index */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --accent-amber: #F59E0B;
            --accent-leaf: #10B981;
            --text-white: #F0FDF4;
            --text-soft: #A7F3D0;
            --text-sand: #FEF3C7;
            --border-subtle: rgba(245, 158, 11, 0.25);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-amber: 0 0 18px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.25rem;
            --radius-md: 0.875rem;
            --radius-sm: 0.625rem;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

        /* Navbar */
        .navbar-custom {
            background: rgba(3, 26, 18, 0.92);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .navbar-custom .logo {
            font-size: 1.4rem;
            font-weight: 700;
            background: linear-gradient(to right, var(--accent-amber), var(--accent-leaf));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
        }
        .navbar-custom .nav-link {
            color: var(--text-soft);
            font-weight: 500;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--accent-amber);
            background: rgba(245, 158, 11, 0.08);
        }
        .btn-outline-gold {
            border: 1.5px solid var(--accent-amber);
            color: var(--accent-amber);
            background: transparent;
            padding: 0.5rem 1.5rem;
            border-radius: 3rem;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-outline-gold:hover {
            background: var(--accent-amber);
            color: #031A12;
        }
        .btn-solid-gold {
            background: linear-gradient(135deg, var(--accent-amber), #D97706);
            border: none;
            color: #031A12;
            padding: 0.55rem 1.8rem;
            border-radius: 3rem;
            font-weight: 700;
            box-shadow: var(--shadow-amber);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-solid-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 22px rgba(245, 158, 11, 0.45);
            color: #031A12;
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(135deg, #062E20 0%, #031A12 60%), url('/assets/images/backpic/back-4.jpg') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 5rem 0;
            position: relative;
            border-bottom: 2px solid var(--border-subtle);
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-sand);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-soft);
            max-width: 680px;
            margin-top: 1.2rem;
        }
        .hero-badge {
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid var(--accent-amber);
            color: var(--accent-amber);
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 1rem;
        }

        /* Section titles */
        .section-title {
            font-size: 2.1rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-sand);
        }
        .section-subtitle {
            color: var(--text-soft);
            font-size: 1.1rem;
            max-width: 700px;
        }

        /* Cards */
        .card-custom {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: all 0.3s ease;
        }
        .card-custom:hover {
            border-color: var(--accent-amber);
            box-shadow: var(--shadow-amber);
            transform: translateY(-4px);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            background: rgba(16, 185, 129, 0.15);
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.7rem;
            color: var(--accent-leaf);
            margin-bottom: 1.2rem;
        }

        /* Table */
        .table-compare {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }
        .table-compare th {
            background: rgba(245, 158, 11, 0.08);
            color: var(--accent-amber);
            font-weight: 700;
            border-bottom: 1px solid var(--border-subtle);
        }
        .table-compare td, .table-compare th {
            padding: 1rem 1.5rem;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .highlight-row {
            background: rgba(16, 185, 129, 0.08);
            border-left: 4px solid var(--accent-leaf);
        }

        /* News list */
        .news-item {
            display: flex;
            gap: 1.2rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-subtle);
            align-items: center;
        }
        .news-thumb {
            width: 90px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .fab-left {
            position: fixed;
            left: 1.3rem;
            bottom: 5rem;
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 30% 30%, #FCD34D, #B45309);
            border-radius: 50%;
            box-shadow: 0 6px 24px rgba(245, 158, 11, 0.45);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #031A12;
            font-size: 1.6rem;
            z-index: 999;
            transition: transform 0.3s;
            cursor: pointer;
        }
        .fab-left:hover {
            transform: scale(1.1);
        }

        /* Footer */
        .footer-custom {
            background: #020F0A;
            border-top: 1px solid var(--border-subtle);
            padding: 2.5rem 0 1.5rem;
            color: var(--text-soft);
        }

        @media (max-width: 768px) {
            .hero-title { font-size: 2rem; }
            .navbar-custom .logo { font-size: 1.1rem; }
        }

/* roulang page: article */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --accent-amber: #F59E0B;
            --accent-leaf: #10B981;
            --text-white: #F0FDF4;
            --text-soft: #A7F3D0;
            --text-sand: #FEF3C7;
            --border-subtle: rgba(245, 158, 11, 0.25);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-amber: 0 0 18px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.25rem;
            --radius-md: 0.875rem;
            --radius-sm: 0.625rem;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
        /* Navbar */
        .navbar-custom {
            background: rgba(3, 26, 18, 0.92);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .navbar-custom .logo {
            font-size: 1.4rem;
            font-weight: 700;
            background: linear-gradient(to right, var(--accent-amber), var(--accent-leaf));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
        }
        .navbar-custom .nav-link {
            color: var(--text-soft);
            font-weight: 500;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--accent-amber);
            background: rgba(245, 158, 11, 0.08);
        }
        .btn-outline-gold {
            border: 1.5px solid var(--accent-amber);
            color: var(--accent-amber);
            background: transparent;
            padding: 0.5rem 1.5rem;
            border-radius: 3rem;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-outline-gold:hover {
            background: var(--accent-amber);
            color: #031A12;
        }
        .btn-solid-gold {
            background: linear-gradient(135deg, var(--accent-amber), #D97706);
            border: none;
            color: #031A12;
            padding: 0.55rem 1.8rem;
            border-radius: 3rem;
            font-weight: 700;
            box-shadow: var(--shadow-amber);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-solid-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 22px rgba(245, 158, 11, 0.45);
            color: #031A12;
        }
        /* Article Page Specific */
        .article-banner {
            background: linear-gradient(135deg, #062E20 0%, #031A12 70%), url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 4rem 0 2.5rem;
            border-bottom: 2px solid var(--border-subtle);
        }
        .article-breadcrumb {
            color: var(--text-soft);
            font-size: 0.9rem;
            margin-bottom: 0.8rem;
        }
        .article-breadcrumb a { color: var(--accent-amber); }
        .article-breadcrumb a:hover { text-decoration: underline; }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            color: var(--text-soft);
            font-size: 0.95rem;
            margin: 1rem 0;
            align-items: center;
        }
        .article-meta .badge-category {
            background: rgba(16, 185, 129, 0.18);
            color: var(--accent-leaf);
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            font-weight: 600;
            border: 1px solid var(--accent-leaf);
        }
        .article-content {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            color: var(--text-white);
            line-height: 1.8;
            font-size: 1.05rem;
        }
        .article-content h2 {
            color: var(--accent-amber);
            font-weight: 700;
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-size: 1.6rem;
        }
        .article-content h3 {
            color: var(--text-sand);
            font-weight: 600;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
        }
        .article-content ul, .article-content ol {
            padding-left: 1.8rem;
            margin-bottom: 1.2rem;
        }
        .article-content li {
            margin-bottom: 0.5rem;
        }
        .article-content blockquote {
            background: rgba(245, 158, 11, 0.08);
            border-left: 4px solid var(--accent-amber);
            padding: 1.2rem 1.8rem;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.8rem 0;
            font-style: italic;
            color: var(--text-sand);
        }
        .content-not-found {
            text-align: center;
            padding: 4rem 2rem;
            color: var(--text-soft);
        }
        .content-not-found i {
            font-size: 3rem;
            color: var(--accent-amber);
            margin-bottom: 1rem;
            display: block;
        }
        /* Sidebar */
        .sidebar-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            margin-bottom: 2rem;
        }
        .sidebar-card h4 {
            color: var(--accent-amber);
            font-weight: 700;
            margin-bottom: 1.2rem;
            font-size: 1.25rem;
            border-bottom: 2px solid var(--border-subtle);
            padding-bottom: 0.75rem;
        }
        .sidebar-link-item {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            padding: 0.7rem 0;
            border-bottom: 1px solid var(--border-subtle);
            transition: all 0.2s;
            color: var(--text-soft);
        }
        .sidebar-link-item:hover {
            color: var(--accent-amber);
            padding-left: 0.5rem;
        }
        .sidebar-link-item i {
            color: var(--accent-leaf);
            width: 20px;
            text-align: center;
        }
        /* Related Articles */
        .related-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s;
        }
        .related-card:hover {
            border-color: var(--accent-amber);
            box-shadow: var(--shadow-amber);
            transform: translateY(-3px);
        }
        .related-card .card-body {
            padding: 1.2rem;
        }
        .related-card .card-title {
            font-weight: 700;
            color: var(--text-sand);
            font-size: 1rem;
            margin-bottom: 0.5rem;
        }
        .related-card .card-text {
            color: var(--text-soft);
            font-size: 0.9rem;
        }
        /* Section titles */
        .section-title {
            font-size: 2.1rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-sand);
        }
        .section-subtitle {
            color: var(--text-soft);
            font-size: 1.1rem;
            max-width: 700px;
        }
        /* Footer */
        .footer-custom {
            background: #020F0A;
            border-top: 1px solid var(--border-subtle);
            padding: 2.5rem 0 1.5rem;
            color: var(--text-soft);
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 2rem; }
            .navbar-custom .logo { font-size: 1.1rem; }
            .article-content {
                padding: 1.5rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.6rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --accent-amber: #F59E0B;
            --accent-leaf: #10B981;
            --text-white: #F0FDF4;
            --text-soft: #A7F3D0;
            --text-sand: #FEF3C7;
            --border-subtle: rgba(245, 158, 11, 0.25);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-amber: 0 0 18px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.25rem;
            --radius-md: 0.875rem;
            --radius-sm: 0.625rem;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
        .navbar-custom {
            background: rgba(3, 26, 18, 0.92);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .navbar-custom .logo {
            font-size: 1.4rem;
            font-weight: 700;
            background: linear-gradient(to right, var(--accent-amber), var(--accent-leaf));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
        }
        .navbar-custom .nav-link {
            color: var(--text-soft);
            font-weight: 500;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--accent-amber);
            background: rgba(245, 158, 11, 0.08);
        }
        .btn-outline-gold {
            border: 1.5px solid var(--accent-amber);
            color: var(--accent-amber);
            background: transparent;
            padding: 0.5rem 1.5rem;
            border-radius: 3rem;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-outline-gold:hover {
            background: var(--accent-amber);
            color: #031A12;
        }
        .btn-solid-gold {
            background: linear-gradient(135deg, var(--accent-amber), #D97706);
            border: none;
            color: #031A12;
            padding: 0.55rem 1.8rem;
            border-radius: 3rem;
            font-weight: 700;
            box-shadow: var(--shadow-amber);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-solid-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 22px rgba(245, 158, 11, 0.45);
            color: #031A12;
        }
        .hero-section {
            background: linear-gradient(135deg, #062E20 0%, #031A12 60%), url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 5rem 0;
            position: relative;
            border-bottom: 2px solid var(--border-subtle);
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-sand);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-soft);
            max-width: 680px;
            margin-top: 1.2rem;
        }
        .hero-badge {
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid var(--accent-amber);
            color: var(--accent-amber);
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 1rem;
        }
        .section-title {
            font-size: 2.1rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-sand);
        }
        .section-subtitle {
            color: var(--text-soft);
            font-size: 1.1rem;
            max-width: 700px;
        }
        .card-custom {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: all 0.3s ease;
        }
        .card-custom:hover {
            border-color: var(--accent-amber);
            box-shadow: var(--shadow-amber);
            transform: translateY(-4px);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            background: rgba(16, 185, 129, 0.15);
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.7rem;
            color: var(--accent-leaf);
            margin-bottom: 1.2rem;
        }
        .highlight-row {
            background: rgba(16, 185, 129, 0.08);
            border-left: 4px solid var(--accent-leaf);
        }
        .news-item {
            display: flex;
            gap: 1.2rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-subtle);
            align-items: center;
        }
        .news-item:last-child { border-bottom: none; }
        .footer-custom {
            background: #020F0A;
            border-top: 1px solid var(--border-subtle);
            padding: 2.5rem 0 1.5rem;
            color: var(--text-soft);
        }
        .step-card {
            background: rgba(16, 185, 129, 0.06);
            border-left: 4px solid var(--accent-leaf);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            margin-bottom: 1.5rem;
        }
        .device-badge {
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid var(--accent-amber);
            color: var(--accent-amber);
            padding: 0.45rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .timer-box {
            background: var(--bg-secondary);
            border: 1px solid var(--accent-amber);
            border-radius: var(--radius-md);
            padding: 0.5rem 1rem;
            color: var(--accent-amber);
            font-weight: 700;
            font-size: 1.4rem;
            display: inline-block;
            box-shadow: var(--shadow-amber);
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 2rem; }
            .navbar-custom .logo { font-size: 1.1rem; }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --accent-amber: #F59E0B;
            --accent-leaf: #10B981;
            --text-white: #F0FDF4;
            --text-soft: #A7F3D0;
            --text-sand: #FEF3C7;
            --border-subtle: rgba(245, 158, 11, 0.25);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-amber: 0 0 18px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.25rem;
            --radius-md: 0.875rem;
            --radius-sm: 0.625rem;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
        .navbar-custom {
            background: rgba(3, 26, 18, 0.92);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .navbar-custom .logo {
            font-size: 1.4rem;
            font-weight: 700;
            background: linear-gradient(to right, var(--accent-amber), var(--accent-leaf));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
        }
        .navbar-custom .nav-link {
            color: var(--text-soft);
            font-weight: 500;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--accent-amber);
            background: rgba(245, 158, 11, 0.08);
        }
        .btn-outline-gold {
            border: 1.5px solid var(--accent-amber);
            color: var(--accent-amber);
            background: transparent;
            padding: 0.5rem 1.5rem;
            border-radius: 3rem;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-outline-gold:hover {
            background: var(--accent-amber);
            color: #031A12;
        }
        .btn-solid-gold {
            background: linear-gradient(135deg, var(--accent-amber), #D97706);
            border: none;
            color: #031A12;
            padding: 0.55rem 1.8rem;
            border-radius: 3rem;
            font-weight: 700;
            box-shadow: var(--shadow-amber);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-solid-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 22px rgba(245, 158, 11, 0.45);
            color: #031A12;
        }
        .hero-section {
            background: linear-gradient(135deg, #062E20 0%, #031A12 60%), url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 4rem 0;
            position: relative;
            border-bottom: 2px solid var(--border-subtle);
        }
        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-sand);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-soft);
            max-width: 680px;
            margin-top: 1.2rem;
        }
        .hero-badge {
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid var(--accent-amber);
            color: var(--accent-amber);
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 1rem;
        }
        .section-title {
            font-size: 2.1rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-sand);
        }
        .section-subtitle {
            color: var(--text-soft);
            font-size: 1.1rem;
            max-width: 700px;
        }
        .card-custom {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: all 0.3s ease;
            height: 100%;
        }
        .card-custom:hover {
            border-color: var(--accent-amber);
            box-shadow: var(--shadow-amber);
            transform: translateY(-4px);
        }
        .promo-icon {
            width: 64px;
            height: 64px;
            background: rgba(16, 185, 129, 0.15);
            border-radius: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--accent-leaf);
            margin-bottom: 1.2rem;
        }
        .highlight-row {
            background: rgba(16, 185, 129, 0.08);
            border-left: 4px solid var(--accent-leaf);
        }
        .footer-custom {
            background: #020F0A;
            border-top: 1px solid var(--border-subtle);
            padding: 2.5rem 0 1.5rem;
            color: var(--text-soft);
        }
        .counter-badge {
            background: var(--accent-amber);
            color: #031A12;
            font-weight: 800;
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            display: inline-block;
            font-size: 1.1rem;
        }
        .divider-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-amber);
            border-radius: 50%;
            display: inline-block;
            margin: 0 0.5rem;
        }
        .list-check li {
            padding-left: 1.8rem;
            position: relative;
            margin-bottom: 0.6rem;
        }
        .list-check li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--accent-leaf);
            position: absolute;
            left: 0;
            top: 2px;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.4rem;
            margin-bottom: 1rem;
        }
        .faq-item h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-sand);
        }
        .cta-section {
            background: rgba(245, 158, 11, 0.05);
            border: 1px solid var(--accent-amber);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 1.9rem; }
            .navbar-custom .logo { font-size: 1.1rem; }
            .section-title { font-size: 1.7rem; }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --accent-amber: #F59E0B;
            --accent-leaf: #10B981;
            --accent-hot: #EF4444;
            --text-white: #F0FDF4;
            --text-soft: #A7F3D0;
            --text-sand: #FEF3C7;
            --border-subtle: rgba(245, 158, 11, 0.25);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-amber: 0 0 18px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.25rem;
            --radius-md: 0.875rem;
            --radius-sm: 0.625rem;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

        /* Navbar */
        .navbar-custom {
            background: rgba(3, 26, 18, 0.92);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .navbar-custom .logo {
            font-size: 1.4rem;
            font-weight: 700;
            background: linear-gradient(to right, var(--accent-amber), var(--accent-leaf));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
        }
        .navbar-custom .nav-link {
            color: var(--text-soft);
            font-weight: 500;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--accent-amber);
            background: rgba(245, 158, 11, 0.08);
        }
        .btn-outline-gold {
            border: 1.5px solid var(--accent-amber);
            color: var(--accent-amber);
            background: transparent;
            padding: 0.5rem 1.5rem;
            border-radius: 3rem;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-outline-gold:hover {
            background: var(--accent-amber);
            color: #031A12;
        }
        .btn-solid-gold {
            background: linear-gradient(135deg, var(--accent-amber), #D97706);
            border: none;
            color: #031A12;
            padding: 0.55rem 1.8rem;
            border-radius: 3rem;
            font-weight: 700;
            box-shadow: var(--shadow-amber);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-solid-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 22px rgba(245, 158, 11, 0.45);
            color: #031A12;
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(135deg, #451A03 0%, #140B01 70%), url('/assets/images/backpic/back-6.jpg') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 5rem 0;
            position: relative;
            border-bottom: 2px solid var(--border-subtle);
            text-align: center;
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-sand);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-soft);
            max-width: 680px;
            margin: 1.2rem auto 0;
        }
        .hero-badge {
            background: rgba(239, 68, 68, 0.2);
            border: 1px solid var(--accent-hot);
            color: var(--accent-hot);
            padding: 0.3rem 1rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 1rem;
        }

        /* Section titles */
        .section-title {
            font-size: 2.1rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-sand);
        }
        .section-subtitle {
            color: var(--text-soft);
            font-size: 1.1rem;
            max-width: 700px;
        }

        /* Cards */
        .card-custom {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: all 0.3s ease;
        }
        .card-custom:hover {
            border-color: var(--accent-amber);
            box-shadow: var(--shadow-amber);
            transform: translateY(-4px);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            background: rgba(16, 185, 129, 0.15);
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.7rem;
            color: var(--accent-leaf);
            margin-bottom: 1.2rem;
        }
        .highlight-row {
            background: rgba(16, 185, 129, 0.08);
            border-left: 4px solid var(--accent-leaf);
        }

        /* Offer cards */
        .offer-card {
            background: linear-gradient(145deg, #0B2E1E, #051F14);
            border-radius: var(--radius-lg);
            padding: 2rem;
            position: relative;
            border: 1px solid var(--border-subtle);
            overflow: hidden;
        }
        .offer-card::before {
            content: '';
            position: absolute;
            top: -20px;
            right: -20px;
            width: 80px;
            height: 80px;
            background: rgba(245, 158, 11, 0.1);
            border-radius: 50%;
        }
        .offer-tag {
            background: var(--accent-hot);
            color: white;
            font-weight: 700;
            font-size: 0.75rem;
            padding: 0.25rem 0.75rem;
            border-radius: 1rem;
            display: inline-block;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .offer-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-amber);
            line-height: 1.2;
        }
        .offer-code {
            background: rgba(0,0,0,0.3);
            padding: 0.4rem 1rem;
            border-radius: 2rem;
            font-family: monospace;
            color: var(--text-sand);
            border: 1px dashed var(--accent-amber);
        }

        /* Process steps */
        .step-circle {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--accent-amber), #B45309);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 800;
            color: #031A12;
            margin: 0 auto 1rem;
            box-shadow: var(--shadow-amber);
        }

        /* FAQ */
        .accordion-button:not(.collapsed) {
            background-color: rgba(245, 158, 11, 0.12);
            color: var(--accent-amber);
            box-shadow: none;
        }
        .accordion-button:focus {
            border-color: var(--accent-amber);
            box-shadow: 0 0 0 0.2rem rgba(245,158,11,0.2);
        }
        .accordion-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.8rem;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-sand);
            font-weight: 600;
            border-radius: var(--radius-md) !important;
        }

        /* News list */
        .news-item {
            display: flex;
            gap: 1.2rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-subtle);
            align-items: center;
        }

        /* Footer */
        .footer-custom {
            background: #020F0A;
            border-top: 1px solid var(--border-subtle);
            padding: 2.5rem 0 1.5rem;
            color: var(--text-soft);
        }

        @media (max-width: 768px) {
            .hero-title { font-size: 2rem; }
            .navbar-custom .logo { font-size: 1.1rem; }
            .offer-value { font-size: 1.8rem; }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --accent-amber: #F59E0B;
            --accent-leaf: #10B981;
            --text-white: #F0FDF4;
            --text-soft: #A7F3D0;
            --text-sand: #FEF3C7;
            --border-subtle: rgba(245, 158, 11, 0.25);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-amber: 0 0 18px rgba(245, 158, 11, 0.25);
            --radius-lg: 1.25rem;
            --radius-md: 0.875rem;
            --radius-sm: 0.625rem;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

        .navbar-custom {
            background: rgba(3, 26, 18, 0.92);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .navbar-custom .logo {
            font-size: 1.4rem;
            font-weight: 700;
            background: linear-gradient(to right, var(--accent-amber), var(--accent-leaf));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
        }
        .navbar-custom .nav-link {
            color: var(--text-soft);
            font-weight: 500;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--accent-amber);
            background: rgba(245, 158, 11, 0.08);
        }
        .btn-outline-gold {
            border: 1.5px solid var(--accent-amber);
            color: var(--accent-amber);
            background: transparent;
            padding: 0.5rem 1.5rem;
            border-radius: 3rem;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-outline-gold:hover {
            background: var(--accent-amber);
            color: #031A12;
        }
        .btn-solid-gold {
            background: linear-gradient(135deg, var(--accent-amber), #D97706);
            border: none;
            color: #031A12;
            padding: 0.55rem 1.8rem;
            border-radius: 3rem;
            font-weight: 700;
            box-shadow: var(--shadow-amber);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-solid-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 22px rgba(245, 158, 11, 0.45);
            color: #031A12;
        }

        .category-hero {
            background: linear-gradient(135deg, #062E20 0%, #031A12 60%), url('/assets/images/backpic/back-6.jpg') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 4rem 0;
            position: relative;
            border-bottom: 2px solid var(--border-subtle);
        }
        .category-hero .hero-badge {
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid var(--accent-amber);
            color: var(--accent-amber);
            padding: 0.3rem 1.1rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 1rem;
        }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-sand);
            line-height: 1.25;
        }
        .category-hero .sub-desc {
            font-size: 1.15rem;
            color: var(--text-soft);
            max-width: 640px;
            margin-top: 1rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text-sand);
        }
        .section-subtitle {
            color: var(--text-soft);
            font-size: 1.05rem;
            max-width: 680px;
        }

        .promo-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all 0.3s ease;
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .promo-card:hover {
            border-color: var(--accent-amber);
            box-shadow: var(--shadow-amber);
            transform: translateY(-5px);
        }
        .promo-card .promo-badge-hot {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: linear-gradient(135deg, #DC2626, #EF4444);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.75rem;
            border-radius: 2rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .promo-card .promo-icon {
            width: 58px;
            height: 58px;
            background: rgba(245, 158, 11, 0.12);
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--accent-amber);
            margin-bottom: 1.2rem;
        }
        .promo-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-sand);
        }
        .promo-card p {
            color: var(--text-soft);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .promo-card .promo-highlight {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent-amber);
            margin: 0.5rem 0;
        }

        .stats-row {
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(6, 46, 32, 0.95));
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
        }
        .stat-item {
            text-align: center;
            padding: 1rem;
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent-amber);
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-soft);
            margin-top: 0.3rem;
        }

        .timeline-steps .step {
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-subtle);
        }
        .timeline-steps .step:last-child { border-bottom: none; }
        .step-number {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--accent-amber), #D97706);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #031A12;
            font-size: 1.2rem;
        }
        .step h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-sand);
            margin-bottom: 0.25rem;
        }
        .step p {
            color: var(--text-soft);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        .info-item {
            display: flex;
            gap: 1rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-subtle);
            align-items: flex-start;
        }
        .info-item:last-child { border-bottom: none; }
        .info-item .info-img {
            width: 80px;
            height: 56px;
            border-radius: 0.6rem;
            object-fit: cover;
            flex-shrink: 0;
        }
        .info-item h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-sand);
            margin-bottom: 0.2rem;
        }
        .info-item .info-meta {
            font-size: 0.82rem;
            color: var(--text-soft);
        }

        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.5rem;
            margin-bottom: 0.8rem;
            transition: all 0.3s;
        }
        .faq-item:hover {
            border-color: var(--accent-amber);
        }
        .faq-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-sand);
            margin-bottom: 0.4rem;
        }
        .faq-item p {
            color: var(--text-soft);
            font-size: 0.93rem;
            margin-bottom: 0;
        }

        .cta-strip {
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.08), rgba(16, 185, 129, 0.08));
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            text-align: center;
        }
        .cta-strip h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-sand);
        }
        .cta-strip p {
            color: var(--text-soft);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0.8rem auto 1.5rem;
        }

        .footer-custom {
            background: #020F0A;
            border-top: 1px solid var(--border-subtle);
            padding: 2.5rem 0 1.5rem;
            color: var(--text-soft);
        }

        @media (max-width: 768px) {
            .category-hero h1 { font-size: 2rem; }
            .navbar-custom .logo { font-size: 1.1rem; }
            .stat-number { font-size: 1.8rem; }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}