/* roulang page: index */
:root {
            --bg-primary: #0B0C0E;
            --bg-secondary: #14161B;
            --bg-card: #1A1C21;
            --accent-gold: #D4AF37;
            --accent-amber: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-active: rgba(212, 175, 55, 0.55);
            --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --container-max: 1280px;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-base: all 0.25s ease;
        }

        * { margin:0; padding:0; box-sizing:border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width:100%; height:auto; display:block; }
        a { text-decoration:none; color:inherit; transition: var(--transition-base); }
        button { cursor:pointer; font-family:inherit; border:none; outline:none; transition: var(--transition-base); }
        ul, ol { list-style:none; }

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

        /* Header & Navigation */
        .site-header {
            position: fixed; top:0; left:0; right:0; z-index:100;
            background: rgba(11,12,14,0.92); backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
        }
        .header-inner {
            display:flex; align-items:center; justify-content:space-between;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .logo {
            font-size:1.15rem; font-weight:700; letter-spacing:-0.3px;
            background: linear-gradient(135deg, var(--accent-gold), #E5C76B);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text; white-space:nowrap;
        }
        .desktop-nav { display:flex; align-items:center; gap:32px; }
        .desktop-nav a {
            font-size:0.925rem; font-weight:500; color:var(--text-secondary);
            padding:6px 0; position:relative;
        }
        .desktop-nav a::after {
            content:''; position:absolute; bottom:0; left:0; width:0; height:2px;
            background:var(--accent-gold); transition: width 0.25s ease;
        }
        .desktop-nav a:hover, .desktop-nav a.active { color:var(--text-primary); }
        .desktop-nav a:hover::after, .desktop-nav a.active::after { width:100%; }
        .header-actions { display:flex; align-items:center; gap:12px; }
        .btn-login {
            background:transparent; color:var(--accent-gold); border:1px solid var(--accent-gold);
            padding:8px 20px; border-radius: var(--radius-sm); font-weight:600; font-size:0.9rem;
        }
        .btn-login:hover { background:rgba(212,175,55,0.12); }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #B8962A);
            color: #0B0C0E; padding:9px 22px; border-radius: var(--radius-sm); font-weight:700; font-size:0.9rem;
            box-shadow: var(--shadow-gold);
        }
        .btn-signup:hover { transform:translateY(-1px); box-shadow: 0 6px 28px rgba(212,175,55,0.3); }
        .menu-toggle { display:none; background:transparent; color:var(--text-primary); font-size:1.6rem; }
        .mobile-menu { display:none; }

        @media (max-width: 768px) {
            .desktop-nav { display:none; }
            .menu-toggle { display:block; }
            .mobile-menu {
                display:block; position:fixed; top:64px; left:0; right:0; bottom:0;
                background: var(--bg-secondary); z-index:99; padding:20px 24px;
                transform: translateX(100%); transition: transform 0.3s ease;
            }
            .mobile-menu.open { transform: translateX(0); }
            .mobile-menu a {
                display:block; padding:14px 0; font-size:1.05rem; font-weight:500;
                border-bottom:1px solid var(--border-subtle); color:var(--text-secondary);
            }
            .mobile-menu a:hover, .mobile-menu a.active { color:var(--accent-gold); }
        }

        main { margin-top:72px; }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(180deg, rgba(20,22,27,0.4) 0%, var(--bg-primary) 100%),
                        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            padding: 80px 0 70px;
            position:relative; overflow:hidden;
        }
        .hero-inner {
            display:flex; align-items:center; gap:48px;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .hero-content { flex:1; }
        .hero-badge {
            display:inline-block; background:rgba(212,175,55,0.15); color:var(--accent-gold);
            padding:6px 16px; border-radius:50px; font-size:0.8rem; font-weight:600; margin-bottom:20px;
            border:1px solid var(--border-active);
        }
        .hero-title {
            font-size:3.2rem; font-weight:800; line-height:1.15; margin-bottom:22px;
            background: linear-gradient(180deg, #FFFFFF 20%, #D4AF37 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .hero-desc {
            font-size:1.1rem; line-height:1.65; color:var(--text-secondary); max-width:580px; margin-bottom:34px;
        }
        .hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold), #B07D1A);
            color:#0B0C0E; padding:14px 32px; border-radius:var(--radius-md);
            font-weight:700; font-size:1rem; box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover { transform:translateY(-2px); box-shadow: 0 8px 32px rgba(212,175,55,0.4); }
        .btn-outline {
            background:transparent; color:var(--accent-gold); border:2px solid var(--accent-gold);
            padding:13px 30px; border-radius:var(--radius-md); font-weight:700; font-size:1rem;
        }
        .btn-outline:hover { background:rgba(212,175,55,0.1); }
        .hero-stats {
            display:flex; gap:28px; margin-top:36px; flex-wrap:wrap;
        }
        .stat-item { text-align:left; }
        .stat-number { font-size:1.7rem; font-weight:800; color:var(--accent-gold); }
        .stat-label { font-size:0.8rem; color:var(--text-muted); }

        .hero-visual { flex:0 0 380px; position:relative; }
        .hero-visual img {
            width:100%; border-radius:var(--radius-xl); box-shadow: 0 16px 48px rgba(212,175,55,0.2);
            border:1px solid var(--border-subtle);
        }

        @media (max-width: 1024px) {
            .hero-inner { flex-direction:column; text-align:left; }
            .hero-visual { flex:0 0 auto; max-width:420px; width:100%; }
            .hero-title { font-size:2.5rem; }
        }
        @media (max-width: 600px) {
            .hero-title { font-size:1.9rem; }
            .hero-desc { font-size:1rem; }
        }

        /* Section Common */
        .section { padding:70px 0; }
        .section-label {
            display:inline-block; font-size:0.8rem; font-weight:600; color:var(--accent-gold);
            text-transform:uppercase; letter-spacing:1.5px; margin-bottom:10px;
        }
        .section-title {
            font-size:2.1rem; font-weight:700; margin-bottom:14px; color:var(--text-primary);
            line-height:1.25;
        }
        .section-desc {
            font-size:1rem; line-height:1.6; color:var(--text-secondary); max-width:680px; margin-bottom:36px;
        }

        /* Matrix Grid */
        .matrix-grid {
            display:grid; grid-template-columns:repeat(auto-fit, minmax(260px,1fr)); gap:24px;
        }
        .matrix-card {
            background:var(--bg-card); border:1px solid var(--border-subtle);
            border-radius:var(--radius-lg); padding:28px 24px;
            transition: var(--transition-base);
        }
        .matrix-card:hover {
            border-color:var(--border-active); box-shadow: var(--shadow-gold); transform:translateY(-3px);
        }
        .matrix-icon { font-size:2rem; margin-bottom:14px; color:var(--accent-gold); }
        .matrix-card h3 { font-size:1.15rem; font-weight:600; margin-bottom:8px; }
        .matrix-card p { font-size:0.925rem; color:var(--text-secondary); line-height:1.55; }

        /* Outline / List Block */
        .outline-list {
            display:flex; flex-direction:column; gap:20px;
        }
        .outline-item {
            display:flex; align-items:flex-start; gap:16px;
            padding:20px 24px; background:var(--bg-card); border-radius:var(--radius-md);
            border-left:4px solid var(--accent-gold);
        }
        .outline-num {
            font-size:1.4rem; font-weight:800; color:var(--accent-gold); min-width:36px;
        }
        .outline-body h4 { font-size:1.05rem; font-weight:600; margin-bottom:4px; }
        .outline-body p { font-size:0.925rem; color:var(--text-secondary); }

        /* Expert / Testimonial */
        .expert-card {
            background:var(--bg-card); border-radius:var(--radius-xl); padding:36px 32px;
            display:flex; gap:28px; align-items:center; border:1px solid var(--border-subtle);
        }
        .expert-avatar {
            width:100px; height:100px; border-radius:50%; overflow:hidden; flex-shrink:0;
            border:3px solid var(--accent-gold);
        }
        .expert-info h3 { font-size:1.3rem; font-weight:700; margin-bottom:6px; }
        .expert-role { color:var(--accent-gold); font-size:0.9rem; margin-bottom:10px; }
        .expert-quote { font-style:italic; color:var(--text-secondary); line-height:1.6; }

        /* Results Grid */
        .results-grid {
            display:grid; grid-template-columns:repeat(auto-fit, minmax(220px,1fr)); gap:20px;
        }
        .result-card {
            background:var(--bg-card); border-radius:var(--radius-lg); padding:24px;
            text-align:left; border:1px solid var(--border-subtle);
        }
        .result-card .big-num { font-size:2.6rem; font-weight:800; color:var(--accent-gold); }
        .result-card p { font-size:0.9rem; color:var(--text-secondary); margin-top:6px; }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1A1C21 0%, #0B0C0E 100%);
            border-radius:var(--radius-xl); padding:50px 40px; text-align:left;
            border:1px solid var(--border-subtle);
        }
        .cta-section h2 { font-size:1.9rem; font-weight:700; margin-bottom:12px; }
        .cta-section p { color:var(--text-secondary); margin-bottom:28px; max-width:600px; }

        /* CMS News Section */
        .news-layout { display:flex; gap:32px; align-items:flex-start; }
        .news-main { flex:2; }
        .news-sidebar { flex:1; background:var(--bg-card); border-radius:var(--radius-lg); padding:24px; border:1px solid var(--border-subtle); }
        .news-sidebar h4 { font-size:1rem; margin-bottom:14px; color:var(--accent-gold); }
        .news-card {
            display:flex; gap:16px; padding:18px 0; border-bottom:1px solid var(--border-subtle);
        }
        .news-card:last-child { border-bottom:none; }
        .news-card img { width:80px; height:56px; object-fit:cover; border-radius:var(--radius-sm); flex-shrink:0; }
        .news-card h3 { font-size:0.95rem; font-weight:600; margin-bottom:4px; line-height:1.3; }
        .news-card .news-date { font-size:0.78rem; color:var(--text-muted); }
        .news-card .news-excerpt { font-size:0.85rem; color:var(--text-secondary); margin-top:4px; }

        @media (max-width: 768px) {
            .news-layout { flex-direction:column; }
        }

        /* Footer */
        .site-footer {
            background:var(--bg-secondary); border-top:1px solid var(--border-subtle);
            padding:44px 0 28px; color:var(--text-muted);
        }
        .footer-grid {
            display:grid; grid-template-columns:repeat(auto-fit, minmax(180px,1fr)); gap:32px;
        }
        .footer-col h4 { color:var(--accent-gold); font-size:0.95rem; margin-bottom:12px; }
        .footer-col a { display:block; font-size:0.88rem; color:var(--text-secondary); padding:4px 0; }
        .footer-col a:hover { color:var(--accent-gold); }
        .footer-bottom {
            margin-top:36px; padding-top:20px; border-top:1px solid var(--border-subtle);
            font-size:0.82rem; text-align:left;
        }

        /* FAB */
        .fab {
            position:fixed; left:20px; bottom:100px; z-index:50;
            width:56px; height:56px; border-radius:50%; background:var(--bg-card);
            border:2px solid var(--accent-gold); box-shadow: 0 6px 24px rgba(212,175,55,0.3);
            display:flex; align-items:center; justify-content:center; font-size:1.5rem;
            transition: var(--transition-base); opacity:0.85;
        }
        .fab:hover { opacity:1; transform:scale(1.1); box-shadow: 0 8px 32px rgba(212,175,55,0.5); }

/* roulang page: article */
:root {
            --bg-primary: #0B0C0E;
            --bg-secondary: #14161B;
            --bg-card: #1A1C21;
            --accent-gold: #D4AF37;
            --accent-amber: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-active: rgba(212, 175, 55, 0.55);
            --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --container-max: 1280px;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-heading: 'Playfair Display', 'Inter', serif;
            --transition-base: all 0.25s ease;
        }

        *,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width:100%; height:auto; display:block; }
        a { text-decoration:none; color:inherit; transition: var(--transition-base); }
        button { cursor:pointer; font-family:inherit; border:none; outline:none; transition: var(--transition-base); }
        .container { width:100%; max-width:var(--container-max); margin:0 auto; padding:0 24px; }

        /* Header & Navigation */
        .site-header {
            position: fixed; top:0; left:0; right:0; z-index:100;
            background: rgba(11,12,14,0.92); backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
        }
        .header-inner {
            display:flex; align-items:center; justify-content:space-between;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .logo {
            font-size:1.15rem; font-weight:700; letter-spacing:-0.3px;
            background: linear-gradient(135deg, var(--accent-gold), #E5C76B);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text; white-space:nowrap;
        }
        .desktop-nav { display:flex; align-items:center; gap:32px; }
        .desktop-nav a {
            font-size:0.925rem; font-weight:500; color:var(--text-secondary);
            padding:6px 0; position:relative;
        }
        .desktop-nav a::after {
            content:''; position:absolute; bottom:0; left:0; width:0; height:2px;
            background:var(--accent-gold); transition: width 0.25s ease;
        }
        .desktop-nav a:hover, .desktop-nav a.active { color:var(--text-primary); }
        .desktop-nav a:hover::after, .desktop-nav a.active::after { width:100%; }
        .header-actions { display:flex; align-items:center; gap:12px; }
        .btn-login {
            background:transparent; color:var(--accent-gold); border:1px solid var(--accent-gold);
            padding:8px 20px; border-radius: var(--radius-sm); font-weight:600; font-size:0.9rem;
        }
        .btn-login:hover { background:rgba(212,175,55,0.12); }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #B8962A);
            color: #0B0C0E; padding:9px 22px; border-radius: var(--radius-sm); font-weight:700; font-size:0.9rem;
            box-shadow: var(--shadow-gold);
        }
        .btn-signup:hover { transform:translateY(-1px); box-shadow: 0 6px 28px rgba(212,175,55,0.3); }
        .menu-toggle { display:none; background:transparent; color:var(--text-primary); font-size:1.6rem; }
        .mobile-menu { display:none; }

        main { margin-top:72px; }

        /* Article Header */
        .article-header {
            background: var(--bg-secondary);
            padding: 60px 0 50px;
            border-bottom: 1px solid var(--border-subtle);
        }
        .article-meta {
            display:flex; align-items:center; gap:16px; flex-wrap:wrap;
            margin-bottom: 16px;
        }
        .article-category {
            display:inline-block; background:rgba(212,175,55,0.12); color:var(--accent-gold);
            padding:5px 14px; border-radius:50px; font-size:0.8rem; font-weight:600;
            border:1px solid var(--border-subtle);
        }
        .article-date {
            font-size:0.85rem; color:var(--text-muted);
        }
        .article-title {
            font-family: var(--font-heading);
            font-size:2.6rem; font-weight:700; line-height:1.25;
            color:var(--text-primary); margin-bottom:20px;
        }
        .article-excerpt {
            font-size:1.05rem; color:var(--text-secondary); max-width:700px; line-height:1.7;
        }

        /* Article Body */
        .article-body-section {
            padding: 50px 0 60px;
        }
        .article-layout {
            display:grid; grid-template-columns: 1fr 320px; gap:48px; align-items:start;
        }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px;
            border: 1px solid var(--border-subtle);
        }
        .article-content h2 {
            font-family: var(--font-heading);
            font-size:1.8rem; font-weight:700; color:var(--text-primary);
            margin: 32px 0 14px; line-height:1.3;
        }
        .article-content h3 {
            font-size:1.35rem; font-weight:700; color:var(--text-primary);
            margin: 24px 0 10px;
        }
        .article-content p {
            font-size:1rem; line-height:1.7; color:var(--text-secondary); margin-bottom:16px;
        }
        .article-content ul, .article-content ol {
            margin: 0 0 16px 20px; color:var(--text-secondary); line-height:1.7;
        }
        .article-content li { margin-bottom:8px; }
        .article-content strong { color:var(--accent-gold); font-weight:600; }
        .article-content blockquote {
            border-left:3px solid var(--accent-gold);
            padding:12px 20px; margin:20px 0;
            background:rgba(212,175,55,0.06);
            color:var(--text-secondary); font-style:italic; border-radius:0 var(--radius-sm) var(--radius-sm) 0;
        }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            border: 1px solid var(--border-subtle);
        }

        .not-found-message {
            text-align:center; padding:60px 20px;
        }
        .not-found-message h2 {
            font-family: var(--font-heading);
            font-size:1.8rem; margin-bottom:16px; color:var(--text-primary);
        }
        .not-found-message p {
            color:var(--text-secondary); margin-bottom:24px;
        }
        .btn-back {
            background: linear-gradient(135deg, var(--accent-gold), #B07D1A);
            color:#0B0C0E; padding:12px 28px; border-radius:var(--radius-sm);
            font-weight:700; display:inline-block;
        }
        .btn-back:hover { box-shadow:0 6px 24px rgba(212,175,55,0.35); transform:translateY(-1px); }

        /* Sidebar */
        .article-sidebar {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-subtle);
            position:sticky; top:90px;
        }
        .sidebar-title {
            font-size:1.15rem; font-weight:700; margin-bottom:18px;
            color:var(--accent-gold); padding-bottom:10px;
            border-bottom:2px solid var(--border-subtle);
        }
        .sidebar-card {
            display:flex; gap:12px; align-items:center; padding:12px 0;
            border-bottom:1px solid var(--border-subtle);
        }
        .sidebar-card:last-child { border-bottom:none; }
        .sidebar-card img {
            width:60px; height:60px; object-fit:cover; border-radius:var(--radius-sm);
            flex-shrink:0;
        }
        .sidebar-card-info { flex:1; }
        .sidebar-card-title {
            font-size:0.85rem; font-weight:600; color:var(--text-primary);
            margin-bottom:4px; line-height:1.3;
        }
        .sidebar-card-date {
            font-size:0.75rem; color:var(--text-muted);
        }
        .sidebar-card:hover .sidebar-card-title { color:var(--accent-gold); }

        /* Author Section */
        .author-section {
            background: var(--bg-secondary); border-radius: var(--radius-lg);
            padding: 32px; margin: 40px 0;
            border:1px solid var(--border-subtle);
            display:flex; gap:20px; align-items:center;
        }
        .author-avatar {
            width:70px; height:70px; border-radius:50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            display:flex; align-items:center; justify-content:center;
            font-size:2rem; color:#0B0C0E; flex-shrink:0; font-weight:700;
        }
        .author-info h4 { font-size:1rem; font-weight:700; margin-bottom:4px; }
        .author-info p { font-size:0.9rem; color:var(--text-secondary); }

        /* Related Posts */
        .related-posts-section {
            padding: 40px 0 70px;
        }
        .section-label {
            font-family: var(--font-heading);
            font-size:1.8rem; font-weight:700; margin-bottom:28px;
            color:var(--text-primary);
        }
        .related-grid {
            display:grid; grid-template-columns: repeat(3, 1fr); gap:24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow:hidden;
            border:1px solid var(--border-subtle);
            transition: var(--transition-base);
        }
        .related-card:hover { border-color:var(--border-active); transform:translateY(-4px); box-shadow:var(--shadow-gold); }
        .related-card img {
            width:100%; height:180px; object-fit:cover; border-bottom:1px solid var(--border-subtle);
        }
        .related-card-body { padding:18px; }
        .related-card-title {
            font-size:0.95rem; font-weight:600; margin-bottom:8px; line-height:1.4;
            color:var(--text-primary);
        }
        .related-card:hover .related-card-title { color:var(--accent-gold); }
        .related-card-date { font-size:0.8rem; color:var(--text-muted); }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(20,22,27,0.95), rgba(11,12,14,0.98)),
                        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            padding: 60px 0; text-align:center;
            border-top:1px solid var(--border-subtle);
            border-bottom:1px solid var(--border-subtle);
        }
        .cta-title {
            font-family: var(--font-heading);
            font-size:2rem; font-weight:700; margin-bottom:14px;
        }
        .cta-desc { color:var(--text-secondary); margin-bottom:28px; max-width:600px; margin-left:auto; margin-right:auto; }
        .cta-buttons { display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold), #B07D1A);
            color:#0B0C0E; padding:14px 32px; border-radius:var(--radius-md);
            font-weight:700; font-size:1rem; box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover { transform:translateY(-2px); box-shadow: 0 8px 32px rgba(212,175,55,0.4); }
        .btn-outline {
            background:transparent; color:var(--accent-gold); border:2px solid var(--accent-gold);
            padding:13px 30px; border-radius:var(--radius-md); font-weight:700; font-size:1rem;
        }
        .btn-outline:hover { background:rgba(212,175,55,0.1); }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top:1px solid var(--border-subtle);
            padding: 50px 0 30px;
        }
        .footer-grid {
            display:grid; grid-template-columns: repeat(3, 1fr); gap:32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            font-size:1.05rem; font-weight:700; margin-bottom:14px;
            color:var(--accent-gold);
        }
        .footer-col a, .footer-col p {
            display:block; font-size:0.9rem; color:var(--text-secondary);
            margin-bottom:8px; line-height:1.5;
        }
        .footer-col a:hover { color:var(--accent-gold); }
        .footer-bottom {
            text-align:center; padding-top:20px; border-top:1px solid var(--border-subtle);
            font-size:0.85rem; color:var(--text-muted);
        }

        /* FAB */
        .fab {
            position:fixed; left:24px; bottom:96px; z-index:50;
            width:56px; height:56px; border-radius:50%;
            background: linear-gradient(135deg, var(--accent-gold), #B07D1A);
            box-shadow: 0 6px 25px rgba(212,175,55,0.35);
            display:flex; align-items:center; justify-content:center;
            font-size:1.6rem; color:#0B0C0E; transition: var(--transition-base);
            opacity:0.8;
        }
        .fab:hover { transform:scale(1.1); opacity:1; box-shadow:0 8px 32px rgba(212,175,55,0.5); }
        .fab:active { transform:scale(0.95) translateY(2px); }
        .fab-badge {
            position:absolute; top:-4px; right:-4px; width:16px; height:16px;
            background:#DC2626; border-radius:50%; border:2px solid #0B0C0E;
        }

        @media (min-width: 1025px) {
            .desktop-nav { display:flex; }
            .menu-toggle { display:none; }
            .mobile-menu { display:none !important; }
        }
        @media (max-width: 1024px) {
            .desktop-nav { display:none; }
            .menu-toggle { display:block; }
            .mobile-menu {
                display:block; position:fixed; top:64px; left:0; right:0; bottom:0;
                background: var(--bg-secondary); z-index:99; padding:20px 24px;
                transform: translateX(100%); transition: transform 0.3s ease;
            }
            .mobile-menu.open { transform: translateX(0); }
            .mobile-menu a {
                display:block; padding:14px 0; font-size:1.05rem; font-weight:500;
                border-bottom:1px solid var(--border-subtle); color:var(--text-secondary);
            }
            .mobile-menu a:hover, .mobile-menu a.active { color:var(--accent-gold); }
            .article-title { font-size:2rem; }
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { position:static; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .header-inner { padding:0 16px; }
            .container { padding:0 16px; }
            .article-title { font-size:1.6rem; }
            .article-content { padding:24px; }
            .related-grid { grid-template-columns: 1fr; }
            .author-section { flex-direction:column; text-align:center; }
            .footer-grid { grid-template-columns: 1fr; text-align:center; }
            .fab { left:16px; bottom:80px; }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B0C0E;
            --bg-secondary: #14161B;
            --bg-card: #1A1C21;
            --accent-gold: #D4AF37;
            --accent-amber: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-active: rgba(212, 175, 55, 0.55);
            --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --container-max: 1280px;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-base: all 0.25s ease;
        }
        *,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width:100%; height:auto; display:block; }
        a { text-decoration:none; color:inherit; transition: var(--transition-base); }
        button { cursor:pointer; font-family:inherit; border:none; outline:none; transition: var(--transition-base); }
        .container { width:100%; max-width:var(--container-max); margin:0 auto; padding:0 24px; }
        /* Header & Navigation */
        .site-header {
            position: fixed; top:0; left:0; right:0; z-index:100;
            background: rgba(11,12,14,0.92); backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
        }
        .header-inner {
            display:flex; align-items:center; justify-content:space-between;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .logo {
            font-size:1.15rem; font-weight:700; letter-spacing:-0.3px;
            background: linear-gradient(135deg, var(--accent-gold), #E5C76B);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text; white-space:nowrap;
        }
        .desktop-nav { display:flex; align-items:center; gap:32px; }
        .desktop-nav a {
            font-size:0.925rem; font-weight:500; color:var(--text-secondary);
            padding:6px 0; position:relative;
        }
        .desktop-nav a::after {
            content:''; position:absolute; bottom:0; left:0; width:0; height:2px;
            background:var(--accent-gold); transition: width 0.25s ease;
        }
        .desktop-nav a:hover, .desktop-nav a.active { color:var(--text-primary); }
        .desktop-nav a:hover::after, .desktop-nav a.active::after { width:100%; }
        .header-actions { display:flex; align-items:center; gap:12px; }
        .btn-login {
            background:transparent; color:var(--accent-gold); border:1px solid var(--accent-gold);
            padding:8px 20px; border-radius: var(--radius-sm); font-weight:600; font-size:0.9rem;
        }
        .btn-login:hover { background:rgba(212,175,55,0.12); }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #B8962A);
            color: #0B0C0E; padding:9px 22px; border-radius: var(--radius-sm); font-weight:700; font-size:0.9rem;
            box-shadow: var(--shadow-gold);
        }
        .btn-signup:hover { transform:translateY(-1px); box-shadow: 0 6px 28px rgba(212,175,55,0.3); }
        .menu-toggle { display:none; background:transparent; color:var(--text-primary); font-size:1.6rem; }
        .mobile-menu { display:none; }
        main { margin-top:72px; }
        /* Hero Section */
        .hero-section {
            background: linear-gradient(180deg, rgba(20,22,27,0.4) 0%, var(--bg-primary) 100%),
                        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            padding: 80px 0 70px;
            position:relative; overflow:hidden;
        }
        .hero-inner {
            display:flex; align-items:center; gap:48px;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .hero-content { flex:1; }
        .hero-badge {
            display:inline-block; background:rgba(212,175,55,0.15); color:var(--accent-gold);
            padding:6px 16px; border-radius:50px; font-size:0.8rem; font-weight:600; margin-bottom:20px;
            border:1px solid var(--border-active);
        }
        .hero-title {
            font-size:3.2rem; font-weight:800; line-height:1.15; margin-bottom:22px;
            background: linear-gradient(180deg, #FFFFFF 20%, #D4AF37 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .hero-desc {
            font-size:1.1rem; line-height:1.65; color:var(--text-secondary); max-width:580px; margin-bottom:34px;
        }
        .hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold), #B07D1A);
            color:#0B0C0E; padding:14px 32px; border-radius:var(--radius-md);
            font-weight:700; font-size:1rem; box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover { transform:translateY(-2px); box-shadow: 0 8px 32px rgba(212,175,55,0.4); }
        .btn-outline {
            background:transparent; color:var(--accent-gold); border:2px solid var(--accent-gold);
            padding:13px 30px; border-radius:var(--radius-md); font-weight:700; font-size:1rem;
        }
        .btn-outline:hover { background:rgba(212,175,55,0.08); }
        .hero-visual { flex:1; display:flex; justify-content:center; align-items:center; }
        .hero-visual img { max-width:380px; border-radius:var(--radius-lg); box-shadow: var(--shadow-card); }
        /* Section titles */
        .section-title {
            font-size:2.2rem; font-weight:700; margin-bottom:14px; line-height:1.25;
        }
        .section-subtitle {
            font-size:1.05rem; color:var(--text-secondary); margin-bottom:40px; max-width:640px;
        }
        /* Metrics Dashboard */
        .metrics-section {
            background: var(--bg-secondary);
            padding: 60px 0;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .metrics-grid {
            display:grid; grid-template-columns:repeat(4,1fr); gap:32px;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .metric-card {
            background: var(--bg-card); border-radius:var(--radius-md);
            padding: 28px 24px; text-align:center;
            border: 1px solid var(--border-subtle);
        }
        .metric-value {
            font-size:2.8rem; font-weight:800;
            background: linear-gradient(180deg, var(--accent-gold), #E5C76B);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text; margin-bottom:8px;
        }
        .metric-label { font-size:0.925rem; color:var(--text-secondary); }
        /* Services Matrix */
        .services-section { padding: 70px 0; }
        .services-grid {
            display:grid; grid-template-columns:repeat(3,1fr); gap:28px;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .service-card {
            background: var(--bg-card); border-radius:var(--radius-lg);
            padding: 32px 24px; border: 1px solid var(--border-subtle);
            transition: var(--transition-base);
        }
        .service-card:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-gold);
        }
        .service-icon {
            width: 52px; height: 52px; border-radius: var(--radius-sm);
            background: rgba(212,175,55,0.12);
            display:flex; align-items:center; justify-content:center;
            font-size:1.6rem; margin-bottom:18px;
        }
        .service-card h3 { font-size:1.25rem; font-weight:700; margin-bottom:10px; }
        .service-card p { font-size:0.9rem; color:var(--text-muted); line-height:1.6; }
        /* Comparison Table */
        .comparison-section {
            background: var(--bg-secondary);
            padding: 70px 0;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .comparison-table-wrap {
            overflow-x:auto;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .comparison-table {
            width:100%; border-collapse: collapse;
            background: var(--bg-card); border-radius:var(--radius-lg);
            overflow:hidden; border: 1px solid var(--border-subtle);
        }
        .comparison-table th {
            background: rgba(212,175,55,0.08); padding:18px 20px;
            text-align:left; font-weight:700; color:var(--accent-gold); font-size:0.95rem;
        }
        .comparison-table td {
            padding:16px 20px; border-top: 1px solid var(--border-subtle);
            font-size:0.9rem; color:var(--text-secondary);
        }
        /* Milestones */
        .milestones-section { padding: 70px 0; }
        .milestones-timeline {
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
            display:flex; flex-direction:column; gap:32px;
        }
        .milestone {
            display:flex; align-items:flex-start; gap:24px;
            background: var(--bg-card); border-radius:var(--radius-md);
            padding: 24px; border: 1px solid var(--border-subtle);
        }
        .milestone-num {
            width:56px; height:56px; border-radius:50%;
            background: linear-gradient(135deg, var(--accent-gold), #B07D1A);
            color:#0B0C0E; display:flex; align-items:center; justify-content:center;
            font-weight:800; font-size:1.3rem; flex-shrink:0;
        }
        .milestone-content h4 { font-size:1.15rem; font-weight:700; margin-bottom:8px; }
        .milestone-content p { font-size:0.9rem; color:var(--text-muted); line-height:1.6; }
        /* Latest Articles */
        .articles-section { padding: 70px 0; background: var(--bg-secondary); border-top: 1px solid var(--border-subtle); }
        .articles-grid {
            display:grid; grid-template-columns:repeat(3,1fr); gap:28px;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .article-card {
            background: var(--bg-card); border-radius:var(--radius-lg);
            overflow:hidden; border: 1px solid var(--border-subtle);
            transition: var(--transition-base);
        }
        .article-card:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-card);
        }
        .article-img {
            height:200px; background-size:cover; background-position:center;
        }
        .article-body { padding:20px; }
        .article-body h3 { font-size:1.1rem; font-weight:700; margin-bottom:8px; }
        .article-body p { font-size:0.85rem; color:var(--text-muted); line-height:1.55; margin-bottom:12px; }
        .article-tag {
            display:inline-block; background:rgba(212,175,55,0.12); color:var(--accent-gold);
            padding:3px 12px; border-radius:50px; font-size:0.75rem; font-weight:600;
        }
        .articles-more {
            text-align:center; margin-top:36px;
        }
        .articles-more a {
            display:inline-block; color:var(--accent-gold); font-weight:600;
            border-bottom:1px solid var(--accent-gold); padding-bottom:4px;
        }
        /* Trust Section */
        .trust-section { padding: 70px 0; }
        .trust-grid {
            display:grid; grid-template-columns:repeat(4,1fr); gap:28px;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .trust-item {
            background: var(--bg-card); border-radius:var(--radius-md);
            padding: 28px 20px; text-align:center; border: 1px solid var(--border-subtle);
        }
        .trust-icon { font-size:2.4rem; margin-bottom:14px; }
        .trust-item h4 { font-size:1rem; font-weight:700; margin-bottom:8px; }
        .trust-item p { font-size:0.85rem; color:var(--text-muted); }
        /* FAQ */
        .faq-section { padding: 70px 0; background: var(--bg-secondary); border-top: 1px solid var(--border-subtle); }
        .faq-list {
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
            display:flex; flex-direction:column; gap:16px;
        }
        .faq-item {
            background: var(--bg-card); border-radius:var(--radius-md);
            padding: 22px 24px; border: 1px solid var(--border-subtle);
        }
        .faq-question {
            font-size:1.05rem; font-weight:700; margin-bottom:10px;
            cursor: pointer; display:flex; justify-content:space-between; align-items:center;
        }
        .faq-answer {
            font-size:0.9rem; color:var(--text-muted); line-height:1.65;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, rgba(212,175,55,0.08), rgba(11,12,14,0.95));
            padding: 70px 0; text-align:center; border-top: 1px solid var(--border-active);
        }
        .cta-inner {
            max-width:700px; margin:0 auto; padding:0 24px;
        }
        .cta-inner h2 { font-size:2rem; font-weight:700; margin-bottom:14px; }
        .cta-inner p { font-size:1rem; color:var(--text-secondary); margin-bottom:28px; }
        /* Footer */
        .site-footer {
            background: var(--bg-secondary); padding: 50px 0 24px;
            border-top: 1px solid var(--border-subtle);
        }
        .footer-grid {
            display:grid; grid-template-columns:2fr 1fr 1fr; gap:36px;
            max-width:var(--container-max); margin:0 auto; padding:0 24px 32px;
        }
        .footer-col h4 { font-size:1rem; font-weight:700; margin-bottom:16px; color:var(--accent-gold); }
        .footer-col p, .footer-col a { font-size:0.85rem; color:var(--text-muted); display:block; margin-bottom:10px; line-height:1.5; }
        .footer-col a:hover { color:var(--accent-gold); }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle); padding:20px 24px 0;
            max-width:var(--container-max); margin:0 auto; text-align:center;
            font-size:0.8rem; color:var(--text-muted);
        }
        /* Mobile */
        @media(max-width:1024px) {
            .desktop-nav { display:none; }
            .menu-toggle { display:block; }
            .mobile-menu { display:block; position:fixed; top:64px; left:0; right:0; bottom:0; background:var(--bg-secondary); z-index:99; padding:20px 24px; transform:translateX(100%); transition:transform 0.3s ease; }
            .mobile-menu.open { transform:translateX(0); }
            .mobile-menu a { display:block; padding:14px 0; font-size:1.05rem; font-weight:500; border-bottom:1px solid var(--border-subtle); color:var(--text-secondary); }
            .mobile-menu a:hover, .mobile-menu a.active { color:var(--accent-gold); }
            .header-actions .btn-login, .header-actions .btn-signup { display:inline-block; }
            .hero-inner { flex-direction:column; text-align:center; }
            .hero-desc { max-width:100%; }
            .hero-visual img { max-width:280px; margin:0 auto; }
            .metrics-grid { grid-template-columns:repeat(2,1fr); }
            .services-grid { grid-template-columns:1fr; }
            .articles-grid { grid-template-columns:1fr; }
            .trust-grid { grid-template-columns:repeat(2,1fr); }
            .footer-grid { grid-template-columns:1fr; }
        }
        @media(max-width:768px) {
            .hero-title { font-size:2.4rem; }
            .section-title { font-size:1.7rem; }
            .metrics-grid { grid-template-columns:1fr; }
            .trust-grid { grid-template-columns:1fr; }
        }
        @media(max-width:520px) {
            .hero-title { font-size:1.8rem; }
            .hero-buttons { flex-direction:column; }
            .btn-login, .btn-signup { padding:6px 14px; font-size:0.8rem; }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0B0C0E;
            --bg-secondary: #14161B;
            --bg-card: #1A1C21;
            --accent-gold: #D4AF37;
            --accent-amber: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-active: rgba(212, 175, 55, 0.55);
            --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --container-max: 1280px;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-base: all 0.25s ease;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }
        * { box-sizing: border-box; }
        img { max-width:100%; height:auto; display:block; }
        a { text-decoration:none; color:inherit; transition: var(--transition-base); }
        button { cursor:pointer; font-family:inherit; border:none; outline:none; transition: var(--transition-base); }
        .container { width:100%; max-width:var(--container-max); margin:0 auto; padding:0 24px; }

        /* Header & Navigation */
        .site-header {
            position: fixed; top:0; left:0; right:0; z-index:100;
            background: rgba(11,12,14,0.92); backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
        }
        .header-inner {
            display:flex; align-items:center; justify-content:space-between;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .logo {
            font-size:1.15rem; font-weight:700; letter-spacing:-0.3px;
            background: linear-gradient(135deg, var(--accent-gold), #E5C76B);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text; white-space:nowrap;
        }
        .desktop-nav { display:flex; align-items:center; gap:32px; }
        .desktop-nav a {
            font-size:0.925rem; font-weight:500; color:var(--text-secondary);
            padding:6px 0; position:relative;
        }
        .desktop-nav a::after {
            content:''; position:absolute; bottom:0; left:0; width:0; height:2px;
            background:var(--accent-gold); transition: width 0.25s ease;
        }
        .desktop-nav a:hover, .desktop-nav a.active { color:var(--text-primary); }
        .desktop-nav a:hover::after, .desktop-nav a.active::after { width:100%; }
        .header-actions { display:flex; align-items:center; gap:12px; }
        .btn-login {
            background:transparent; color:var(--accent-gold); border:1px solid var(--accent-gold);
            padding:8px 20px; border-radius: var(--radius-sm); font-weight:600; font-size:0.9rem;
        }
        .btn-login:hover { background:rgba(212,175,55,0.12); }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #B8962A);
            color: #0B0C0E; padding:9px 22px; border-radius: var(--radius-sm); font-weight:700; font-size:0.9rem;
            box-shadow: var(--shadow-gold);
        }
        .btn-signup:hover { transform:translateY(-1px); box-shadow: 0 6px 28px rgba(212,175,55,0.3); }
        .menu-toggle { display:none; background:transparent; color:var(--text-primary); font-size:1.6rem; }
        .mobile-menu { display:none; }

        main { margin-top:72px; }

        /* Page Hero / Banner */
        .page-hero {
            background: linear-gradient(180deg, rgba(20,22,27,0.6) 0%, var(--bg-primary) 100%),
                        url('/assets/images/backpic/back-4.jpg') center/cover no-repeat;
            padding: 70px 0 60px;
            position:relative; text-align: left;
        }
        .page-hero-content {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .page-hero-badge {
            display:inline-block; background:rgba(212,175,55,0.15); color:var(--accent-gold);
            padding:6px 16px; border-radius:50px; font-size:0.8rem; font-weight:600; margin-bottom:16px;
            border:1px solid var(--border-active);
        }
        .page-hero h1 {
            font-size:2.8rem; font-weight:800; line-height:1.2; margin-bottom:18px;
            background: linear-gradient(180deg, #FFFFFF 20%, #D4AF37 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .page-hero p {
            font-size:1.1rem; color:var(--text-secondary); max-width:680px; line-height:1.65; margin-bottom:0;
        }

        /* Common Section Styles */
        .section { padding: 64px 0; }
        .section-header {
            margin-bottom: 40px;
        }
        .section-label {
            font-size:0.8rem; font-weight:700; text-transform:uppercase; letter-spacing:1px;
            color:var(--accent-gold); margin-bottom:10px;
        }
        .section-title {
            font-size:2rem; font-weight:700; color:var(--text-primary); line-height:1.3; margin-bottom:14px;
        }
        .section-desc {
            font-size:1rem; color:var(--text-secondary); max-width:720px; line-height:1.6;
        }

        /* Cards Grid */
        .card-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(280px, 1fr)); gap:24px; }
        .info-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: var(--transition-base);
        }
        .info-card:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }
        .info-card-icon {
            font-size:2rem; margin-bottom:16px; display:block;
        }
        .info-card h3 {
            font-size:1.2rem; font-weight:700; margin-bottom:10px; color:var(--text-primary);
        }
        .info-card p {
            font-size:0.9rem; color:var(--text-secondary); line-height:1.6;
        }

        /* Data Metrics Row */
        .metrics-row {
            display:flex; flex-wrap:wrap; gap:24px;
            justify-content: space-between;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border:1px solid var(--border-subtle);
        }
        .metric-item {
            text-align: center;
            flex:1; min-width:150px;
        }
        .metric-value {
            font-size:2.2rem; font-weight:800; color:var(--accent-gold); line-height:1.2;
        }
        .metric-label {
            font-size:0.85rem; color:var(--text-muted); margin-top:8px;
        }

        /* Process/Steps */
        .steps-list {
            display:flex; flex-direction: column; gap:20px;
        }
        .step-item {
            display:flex; align-items:flex-start; gap:18px;
            background: var(--bg-card); border-radius: var(--radius-md);
            padding: 22px 24px; border:1px solid var(--border-subtle);
            transition: var(--transition-base);
        }
        .step-item:hover { border-color: var(--border-active); }
        .step-num {
            font-size:1.4rem; font-weight:800; color:var(--accent-gold);
            min-width:40px; text-align:center; line-height:1.2;
        }
        .step-content h4 {
            font-size:1.1rem; font-weight:700; color:var(--text-primary); margin-bottom:6px;
        }
        .step-content p {
            font-size:0.9rem; color:var(--text-secondary); margin:0;
        }

        /* Scenario Cards */
        .scenario-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap:24px; }
        .scenario-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: left;
            border:1px solid var(--border-subtle);
        }
        .scenario-card h3 {
            font-size:1.1rem; font-weight:700; color:var(--text-primary); margin-bottom:10px;
        }
        .scenario-card p { font-size:0.9rem; color:var(--text-secondary); }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, #1A1C21 0%, #0B0C0E 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between;
            gap:24px;
            border:1px solid var(--border-active);
        }
        .cta-text h2 {
            font-size:1.9rem; font-weight:700; color:var(--text-primary); margin-bottom:10px;
        }
        .cta-text p { color:var(--text-secondary); font-size:1rem; margin:0; }
        .btn-cta {
            background: var(--accent-gold); color:#0B0C0E;
            padding:16px 36px; border-radius: var(--radius-md);
            font-weight:800; font-size:1rem; white-space: nowrap;
        }
        .btn-cta:hover { background:#E5C76B; }

        /* FAQ */
        .faq-item {
            background: var(--bg-card); border-radius: var(--radius-md);
            margin-bottom: 12px; border:1px solid var(--border-subtle);
        }
        .faq-question {
            padding: 20px 24px; font-weight:700; font-size:1.05rem;
            display:flex; justify-content:space-between; align-items:center;
            cursor:pointer; color:var(--text-primary);
        }
        .faq-answer {
            padding: 0 24px 20px; font-size:0.95rem;
            color:var(--text-secondary); line-height:1.65; display:none;
        }
        .faq-item.open .faq-answer { display:block; }
        .faq-item.open .faq-question { color:var(--accent-gold); }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary); border-top:1px solid var(--border-subtle);
            padding: 48px 0 24px; margin-top:48px;
        }
        .footer-grid {
            display:grid; grid-template-columns:repeat(auto-fit, minmax(200px, 1fr)); gap:32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            font-size:1rem; font-weight:700; color:var(--text-primary); margin-bottom:16px;
        }
        .footer-col a {
            display:block; color:var(--text-secondary); font-size:0.9rem; margin-bottom:10px;
        }
        .footer-col a:hover { color:var(--accent-gold); }
        .footer-bottom {
            text-align:center; font-size:0.85rem; color:var(--text-muted);
            border-top:1px solid var(--border-subtle); padding-top:20px;
        }

        /* FAB */
        .fab {
            position:fixed; left:20px; bottom:80px; z-index:50;
            width:56px; height:56px; border-radius:50%;
            background: var(--bg-card); border:2px solid var(--accent-gold);
            display:flex; align-items:center; justify-content:center;
            box-shadow: 0 6px 25px rgba(212, 175, 55, 0.3);
            transition: var(--transition-base); opacity:0.8;
        }
        .fab:hover { opacity:1; transform:scale(1.1); }
        .fab span { font-size:1.6rem; }

        /* Responsive */
        @media (max-width: 1024px) {
            .desktop-nav { gap:20px; }
            .hero-title, .page-hero h1 { font-size:2.4rem; }
        }
        @media (max-width: 768px) {
            .desktop-nav, .header-actions { display:none; }
            .menu-toggle { display:block; }
            .mobile-menu {
                display:block; position:fixed; top:64px; left:0; right:0; bottom:0;
                background: var(--bg-secondary); z-index:99; padding:20px 24px;
                transform: translateX(100%); transition: transform 0.3s ease; overflow-y:auto;
            }
            .mobile-menu.open { transform: translateX(0); }
            .mobile-menu a {
                display:block; padding:14px 0; font-size:1.05rem; font-weight:500;
                border-bottom:1px solid var(--border-subtle); color:var(--text-secondary);
            }
            .mobile-menu a:hover, .mobile-menu a.active { color:var(--accent-gold); }
            .hero-inner { flex-direction:column; }
            .cta-banner { flex-direction: column; text-align: center; }
            .metrics-row { flex-direction: column; }
        }
        @media (max-width: 520px) {
            .section { padding:40px 0; }
            .section-title { font-size:1.6rem; }
            .card-grid { grid-template-columns:1fr; }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0B0C0E;
            --bg-secondary: #14161B;
            --bg-card: #1A1C21;
            --accent-gold: #D4AF37;
            --accent-amber: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-active: rgba(212, 175, 55, 0.55);
            --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --container-max: 1280px;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-base: all 0.25s ease;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition-base); }
        button { cursor: pointer; font-family: inherit; border: none; outline: none; transition: var(--transition-base); }
        .container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }

        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 100;
            background: rgba(11,12,14,0.92); backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
        }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            max-width: var(--container-max); margin: 0 auto; padding: 0 24px;
        }
        .logo {
            font-size: 1.15rem; font-weight: 700; letter-spacing: -0.3px;
            background: linear-gradient(135deg, var(--accent-gold), #E5C76B);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text; white-space: nowrap;
        }
        .desktop-nav { display: flex; align-items: center; gap: 32px; }
        .desktop-nav a {
            font-size: 0.925rem; font-weight: 500; color: var(--text-secondary);
            padding: 6px 0; position: relative;
        }
        .desktop-nav a::after {
            content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
            background: var(--accent-gold); transition: width 0.25s ease;
        }
        .desktop-nav a:hover, .desktop-nav a.active { color: var(--text-primary); }
        .desktop-nav a:hover::after, .desktop-nav a.active::after { width: 100%; }
        .header-actions { display: flex; align-items: center; gap: 12px; }
        .btn-login {
            background: transparent; color: var(--accent-gold); border: 1px solid var(--accent-gold);
            padding: 8px 20px; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.9rem;
        }
        .btn-login:hover { background: rgba(212,175,55,0.12); }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #B8962A);
            color: #0B0C0E; padding: 9px 22px; border-radius: var(--radius-sm); font-weight: 700; font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
        }
        .btn-signup:hover { transform: translateY(-1px); box-shadow: 0 6px 28px rgba(212,175,55,0.3); }
        .menu-toggle { display: none; background: transparent; color: var(--text-primary); font-size: 1.6rem; }
        .mobile-menu { display: none; }

        main { margin-top: 72px; }

        /* Category Hero */
        .cat-hero {
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%),
                        url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 70px 0 60px;
            border-bottom: 1px solid var(--border-subtle);
        }
        .cat-hero-content {
            display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
        }
        .cat-hero-left { order: 1; }
        .cat-hero-right { order: 2; display: flex; flex-direction: column; gap: 16px; }
        .cat-hero-mini-card {
            background: var(--bg-card); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md); padding: 20px; display: flex; align-items: center; gap: 16px;
        }
        .cat-hero-mini-card .icon-stat {
            font-size: 2rem; color: var(--accent-gold); min-width: 48px; text-align: center;
        }
        .cat-hero-mini-card h5 { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 4px; }
        .cat-hero-mini-card span { font-size: 1.4rem; font-weight: 700; color: var(--text-primary); }
        .cat-badge {
            display: inline-block; background: rgba(212,175,55,0.15); color: var(--accent-gold);
            padding: 6px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: 600; margin-bottom: 20px;
            border: 1px solid var(--border-active);
        }
        .cat-title {
            font-size: 2.8rem; font-weight: 800; line-height: 1.2; margin-bottom: 18px;
            background: linear-gradient(180deg, #FFFFFF 20%, #D4AF37 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .cat-desc { font-size: 1.05rem; line-height: 1.6; color: var(--text-secondary); margin-bottom: 28px; max-width: 540px; }
        .cat-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold), #B07D1A);
            color: #0B0C0E; padding: 14px 32px; border-radius: var(--radius-md);
            font-weight: 700; font-size: 1rem; box-shadow: var(--shadow-gold); display: inline-flex; align-items: center; gap: 8px;
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(212,175,55,0.4); }
        .btn-outline {
            background: transparent; color: var(--accent-gold); border: 2px solid var(--accent-gold);
            padding: 13px 30px; border-radius: var(--radius-md); font-weight: 700; font-size: 1rem; display: inline-flex; align-items: center; gap: 8px;
        }
        .btn-outline:hover { background: rgba(212,175,55,0.1); }

        /* Sections */
        .section { padding: 70px 0; }
        .section-title { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
        .section-subtitle { font-size: 1rem; color: var(--text-secondary); margin-bottom: 40px; max-width: 700px; }

        /* Data Dashboard */
        .stats-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
        .stat-card {
            background: var(--bg-card); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg); padding: 28px 24px; text-align: center;
        }
        .stat-number { font-size: 2.4rem; font-weight: 800; color: var(--accent-gold); margin-bottom: 6px; }
        .stat-label { font-size: 0.9rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

        /* Matrix Grid */
        .matrix-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 32px; }
        .matrix-card {
            background: var(--bg-card); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg); padding: 32px; display: flex; gap: 24px; align-items: flex-start;
            transition: var(--transition-base);
        }
        .matrix-card:hover { border-color: var(--border-active); transform: translateY(-4px); box-shadow: var(--shadow-gold); }
        .matrix-icon {
            font-size: 2.5rem; color: var(--accent-gold); background: rgba(212,175,55,0.1);
            width: 60px; height: 60px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
            flex-shrink: 0;
        }
        .matrix-content h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
        .matrix-content p { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 12px; }
        .tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
        .tag { background: rgba(212,175,55,0.1); color: var(--accent-gold); padding: 4px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; }

        /* Comparison */
        .compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
        .before-box, .after-box { padding: 32px; border-radius: var(--radius-lg); border: 1px solid var(--border-subtle); }
        .before-box { background: rgba(180,83,9,0.08); }
        .after-box { background: rgba(212,175,55,0.08); border-color: var(--border-active); }
        .before-box h3, .after-box h3 { font-size: 1.2rem; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
        .compare-list { list-style: none; }
        .compare-list li { padding: 8px 0; border-bottom: 1px solid var(--border-subtle); font-size: 0.95rem; display: flex; align-items: center; gap: 10px; }
        .compare-list li::before { content: '•'; color: var(--text-muted); }

        /* Milestones */
        .timeline { position: relative; padding-left: 40px; }
        .timeline::before { content: ''; position: absolute; left: 15px; top: 0; bottom: 0; width: 2px; background: var(--border-subtle); }
        .tl-item { margin-bottom: 36px; position: relative; }
        .tl-dot {
            position: absolute; left: -33px; top: 4px; width: 12px; height: 12px; border-radius: 50%;
            background: var(--accent-gold); border: 2px solid var(--bg-primary);
        }
        .tl-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 6px; }
        .tl-desc { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.6; }

        /* News List */
        .news-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
        .news-card {
            background: var(--bg-card); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition-base);
        }
        .news-card:hover { border-color: var(--border-active); transform: translateY(-4px); }
        .news-card img { width: 100%; height: 180px; object-fit: cover; }
        .news-body { padding: 20px; }
        .news-cat { font-size: 0.75rem; color: var(--accent-gold); font-weight: 600; text-transform: uppercase; margin-bottom: 8px; }
        .news-title { font-size: 1.05rem; font-weight: 700; line-height: 1.4; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-excerpt { font-size: 0.85rem; color: var(--text-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; font-size: 0.75rem; color: var(--text-muted); }

        /* Trust Bar */
        .trust-row { display: flex; justify-content: center; align-items: center; gap: 48px; flex-wrap: wrap; }
        .trust-item { text-align: center; }
        .trust-icon { font-size: 2rem; color: var(--accent-gold); margin-bottom: 8px; }
        .trust-label { font-size: 0.85rem; color: var(--text-secondary); }

        /* FAQ */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md); padding: 24px; margin-bottom: 16px;
        }
        .faq-q { font-weight: 700; font-size: 1.15rem; margin-bottom: 10px; color: var(--accent-gold); }
        .faq-a { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.7; }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-secondary), #1C1F25);
            border: 1px solid var(--border-active); border-radius: var(--radius-xl);
            padding: 48px; margin: 0 24px;
        }
        .cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
        .cta-text h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 8px; }
        .cta-text p { color: var(--text-secondary); }
        .btn-large {
            background: linear-gradient(135deg, var(--accent-gold), #B07D1A);
            color: #0B0C0E; padding: 18px 40px; border-radius: var(--radius-md);
            font-weight: 700; font-size: 1.1rem; box-shadow: var(--shadow-gold); white-space: nowrap;
        }
        .btn-large:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(212,175,55,0.4); }

        /* Pagination */
        .pagination { display: flex; justify-content: center; gap: 8px; margin-top: 32px; }
        .page-item {
            width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
            border-radius: var(--radius-sm); font-weight: 600; border: 1px solid var(--border-subtle);
            color: var(--text-secondary); transition: var(--transition-base);
        }
        .page-item.active { background: var(--accent-gold); color: #0B0C0E; border-color: var(--accent-gold); }
        .page-item:hover { border-color: var(--accent-gold); color: var(--accent-gold); }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary); border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px; margin-top: 70px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 32px; }
        .footer-col h4 { font-size: 1rem; font-weight: 700; margin-bottom: 16px; color: var(--accent-gold); }
        .footer-col a { display: block; font-size: 0.9rem; color: var(--text-secondary); padding: 6px 0; }
        .footer-col a:hover { color: var(--accent-gold); }
        .footer-col p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }
        .footer-bottom { text-align: center; padding-top: 24px; border-top: 1px solid var(--border-subtle); font-size: 0.8rem; color: var(--text-muted); }

        /* Responsive */
        @media (max-width: 1024px) {
            .cat-hero-content { grid-template-columns: 1fr; }
            .cat-hero-right { display: grid; grid-template-columns: 1fr 1fr; }
            .matrix-grid { grid-template-columns: 1fr; }
            .compare-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: repeat(2,1fr); }
            .stats-row { grid-template-columns: repeat(2,1fr); }
            .cta-inner { flex-direction: column; text-align: center; }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .menu-toggle { display: block; }
            .mobile-menu {
                display: block; position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
                background: var(--bg-secondary); z-index: 99; padding: 20px 24px;
                transform: translateX(100%); transition: transform 0.3s ease;
            }
            .mobile-menu.open { transform: translateX(0); }
            .mobile-menu a {
                display: block; padding: 14px 0; font-size: 1.05rem; font-weight: 500;
                border-bottom: 1px solid var(--border-subtle); color: var(--text-secondary);
            }
            .mobile-menu a:hover, .mobile-menu a.active { color: var(--accent-gold); }
            .header-actions { gap: 8px; }
            .btn-login, .btn-signup { padding: 6px 14px; font-size: 0.8rem; }
            .cat-title { font-size: 2rem; }
            .cat-hero-right { grid-template-columns: 1fr; }
            .stats-row { grid-template-columns: 1fr 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .matrix-card { flex-direction: column; }
            .timeline { padding-left: 30px; }
            .trust-row { gap: 24px; }
            .section { padding: 50px 0; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .cat-hero { padding: 50px 0 40px; }
            .cat-buttons { flex-direction: column; }
            .btn-primary, .btn-outline { justify-content: center; }
            .stats-row { grid-template-columns: 1fr; }
            .cta-section { padding: 28px 20px; margin: 0 12px; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0B0C0E;
            --bg-secondary: #14161B;
            --bg-card: #1A1C21;
            --accent-gold: #D4AF37;
            --accent-amber: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-active: rgba(212, 175, 55, 0.55);
            --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --container-max: 1280px;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-base: all 0.25s ease;
        }
        html { scroll-behavior: smooth; }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width:100%; height:auto; display:block; }
        a { text-decoration:none; color:inherit; transition: var(--transition-base); }
        button { cursor:pointer; font-family:inherit; border:none; outline:none; transition: var(--transition-base); }
        .container { width:100%; max-width:var(--container-max); margin:0 auto; padding:0 24px; }
        /* Header & Navigation */
        .site-header {
            position: fixed; top:0; left:0; right:0; z-index:100;
            background: rgba(11,12,14,0.94); backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
        }
        .header-inner {
            display:flex; align-items:center; justify-content:space-between;
            max-width:var(--container-max); margin:0 auto; padding:0 24px;
        }
        .logo {
            font-size:1.15rem; font-weight:700; letter-spacing:-0.3px;
            background: linear-gradient(135deg, var(--accent-gold), #E5C76B);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text; white-space:nowrap;
            text-decoration:none;
        }
        .desktop-nav { display:none; align-items:center; gap:32px; }
        .desktop-nav a {
            font-size:0.9rem; font-weight:500; color:var(--text-secondary);
            padding:6px 0; position:relative;
        }
        .desktop-nav a::after {
            content:''; position:absolute; bottom:0; left:0; width:0; height:2px;
            background:var(--accent-gold); transition: width 0.25s ease;
        }
        .desktop-nav a:hover, .desktop-nav a.active { color:var(--text-primary); }
        .desktop-nav a:hover::after, .desktop-nav a.active::after { width:100%; }
        .header-actions { display:flex; align-items:center; gap:12px; }
        .btn-login {
            background:transparent; color:var(--accent-gold); border:1px solid var(--accent-gold);
            padding:8px 20px; border-radius: var(--radius-sm); font-weight:600; font-size:0.85rem;
            white-space:nowrap;
        }
        .btn-login:hover { background:rgba(212,175,55,0.12); }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #B8962A);
            color: #0B0C0E; padding:9px 22px; border-radius: var(--radius-sm); font-weight:700; font-size:0.85rem;
            box-shadow: var(--shadow-gold); white-space:nowrap;
        }
        .btn-signup:hover { transform:translateY(-1px); box-shadow: 0 6px 28px rgba(212,175,55,0.3); }
        .menu-toggle { display:block; background:transparent; color:var(--text-primary); font-size:1.6rem; padding:4px 8px; }
        .mobile-menu {
            display:block; position:fixed; top:64px; left:0; right:0; bottom:0;
            background: var(--bg-secondary); z-index:99; padding:20px 24px;
            transform: translateX(100%); transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
            overflow-y:auto;
        }
        .mobile-menu.open { transform: translateX(0); }
        .mobile-menu a {
            display:block; padding:15px 0; font-size:1.05rem; font-weight:500;
            border-bottom:1px solid var(--border-subtle); color:var(--text-secondary);
        }
        .mobile-menu a:hover, .mobile-menu a.active { color:var(--accent-gold); }
        main { margin-top:72px; }
        /* Hero Section */
        .hero-section {
            background: linear-gradient(180deg, rgba(20,22,27,0.5) 0%, var(--bg-primary) 100%),
                        url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            padding: 70px 0 60px;
            position:relative; overflow:hidden;
        }
        .hero-inner { max-width:var(--container-max); margin:0 auto; padding:0 24px; }
        .hero-badge {
            display:inline-block; background:rgba(212,175,55,0.15); color:var(--accent-gold);
            padding:6px 16px; border-radius:50px; font-size:0.8rem; font-weight:600; margin-bottom:20px;
            border:1px solid var(--border-active);
        }
        .hero-title {
            font-size:2.6rem; font-weight:800; line-height:1.2; margin-bottom:20px;
            background: linear-gradient(180deg, #FFFFFF 20%, #D4AF37 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .hero-desc {
            font-size:1.05rem; line-height:1.7; color:var(--text-secondary); max-width:640px; margin-bottom:30px;
        }
        .hero-timeline {
            display:flex; align-items:center; gap:0; margin-bottom:32px; flex-wrap:wrap;
            background:var(--bg-card); border-radius:var(--radius-lg); padding:20px 24px;
            border:1px solid var(--border-subtle); max-width:640px;
        }
        .timeline-node {
            display:flex; align-items:center; gap:10px;
            padding:8px 16px; border-radius:50px; font-weight:600; font-size:0.9rem;
            background:rgba(212,175,55,0.1); color:var(--accent-gold); white-space:nowrap;
            border:1px solid transparent;
        }
        .timeline-node.active {
            background:rgba(212,175,55,0.25); border-color:var(--border-active);
        }
        .timeline-dot {
            width:6px; height:6px; border-radius:50%; background:var(--accent-gold); flex-shrink:0;
        }
        .hero-form {
            display:flex; gap:10px; max-width:500px; flex-wrap:wrap;
        }
        .hero-form input {
            flex:1; padding:14px 18px; border-radius:var(--radius-md); border:1px solid var(--border-subtle);
            background:var(--bg-secondary); color:var(--text-primary); font-size:0.95rem; min-width:200px;
        }
        .hero-form input::placeholder { color:var(--text-muted); }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold), #B07D1A);
            color:#0B0C0E; padding:14px 28px; border-radius:var(--radius-md);
            font-weight:700; font-size:0.95rem; box-shadow: var(--shadow-gold); white-space:nowrap;
        }
        .btn-primary:hover { transform:translateY(-2px); box-shadow: 0 8px 32px rgba(212,175,55,0.4); }
        /* Section Common */
        section { padding:60px 0; }
        .section-header { margin-bottom:40px; }
        .section-label {
            font-size:0.8rem; font-weight:700; text-transform:uppercase; letter-spacing:1.5px;
            color:var(--accent-gold); margin-bottom:12px; display:block;
        }
        .section-title {
            font-size:2rem; font-weight:700; margin-bottom:14px; color:var(--text-primary); line-height:1.25;
        }
        .section-desc { color:var(--text-secondary); font-size:1rem; max-width:650px; line-height:1.65; }
        /* Metrics */
        .metrics-grid {
            display:grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
            gap:20px;
        }
        .metric-card {
            background:var(--bg-card); border-radius:var(--radius-lg); padding:28px 24px;
            border:1px solid var(--border-subtle); text-align:left;
        }
        .metric-value {
            font-size:2.2rem; font-weight:800; color:var(--accent-gold); margin-bottom:6px; line-height:1.1;
        }
        .metric-label { color:var(--text-secondary); font-size:0.9rem; }
        /* Service Matrix */
        .service-grid {
            display:grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
            gap:20px;
        }
        .service-card {
            background:var(--bg-card); border-radius:var(--radius-lg); padding:30px 24px;
            border:1px solid var(--border-subtle); transition: var(--transition-base);
        }
        .service-card:hover { border-color:var(--border-active); box-shadow: var(--shadow-gold); transform:translateY(-2px); }
        .service-card img { width:100%; height:180px; object-fit:cover; border-radius:var(--radius-md); margin-bottom:18px; }
        .service-card h3 { font-size:1.15rem; font-weight:700; margin-bottom:8px; color:var(--text-primary); }
        .service-card p { color:var(--text-secondary); font-size:0.9rem; line-height:1.6; margin-bottom:16px; }
        .service-tag {
            display:inline-block; padding:4px 12px; border-radius:50px; font-size:0.75rem; font-weight:600;
            background:rgba(212,175,55,0.12); color:var(--accent-gold);
        }
        /* Comparison */
        .comparison-row {
            display:grid; grid-template-columns: 1fr 1fr; gap:24px; align-items:start;
        }
        .comparison-box {
            background:var(--bg-card); border-radius:var(--radius-lg); padding:32px 28px;
            border:1px solid var(--border-subtle);
        }
        .comparison-box.negative { border-left:4px solid #EF4444; }
        .comparison-box.positive { border-left:4px solid #10B981; }
        .comparison-box h3 { font-size:1.15rem; font-weight:700; margin-bottom:16px; }
        .comparison-box ul { list-style:none; padding:0; }
        .comparison-box li { padding:8px 0; border-bottom:1px solid var(--border-subtle); color:var(--text-secondary); font-size:0.95rem; display:flex; align-items:flex-start; gap:10px; }
        .comparison-box li::before { content:'•'; color:var(--accent-gold); font-weight:bold; flex-shrink:0; }
        /* Milestone Timeline */
        .milestone-list { display:flex; flex-direction:column; gap:28px; }
        .milestone-item {
            display:flex; gap:20px; align-items:flex-start; padding-left:24px;
            border-left:2px solid var(--border-subtle); position:relative;
        }
        .milestone-item::before {
            content:''; position:absolute; left:-7px; top:4px; width:12px; height:12px;
            border-radius:50%; background:var(--accent-gold);
        }
        .milestone-date {
            font-size:0.8rem; font-weight:700; color:var(--accent-gold); white-space:nowrap; min-width:80px; text-transform:uppercase; letter-spacing:0.5px;
        }
        .milestone-content h4 { font-size:1.05rem; font-weight:700; margin-bottom:4px; }
        .milestone-content p { color:var(--text-secondary); font-size:0.9rem; line-height:1.55; }
        /* Info List */
        .info-list-grid {
            display:grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap:20px;
        }
        .info-list-card {
            background:var(--bg-card); border-radius:var(--radius-lg); padding:24px;
            border:1px solid var(--border-subtle); display:flex; gap:14px; align-items:flex-start;
            transition: var(--transition-base);
        }
        .info-list-card:hover { border-color:var(--border-active); }
        .info-list-card img { width:72px; height:72px; border-radius:var(--radius-sm); object-fit:cover; flex-shrink:0; }
        .info-list-card .info-body h4 { font-size:0.95rem; font-weight:700; margin-bottom:6px; }
        .info-list-card .info-body p { font-size:0.8rem; color:var(--text-muted); line-height:1.4; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
        .info-list-card .info-body .info-meta { font-size:0.7rem; color:var(--accent-gold); margin-top:6px; }
        /* FAQ */
        .faq-list { display:flex; flex-direction:column; gap:16px; max-width:800px; }
        .faq-item { background:var(--bg-card); border-radius:var(--radius-md); border:1px solid var(--border-subtle); overflow:hidden; }
        .faq-question {
            width:100%; padding:20px 24px; background:transparent; color:var(--text-primary);
            font-size:1rem; font-weight:600; text-align:left; display:flex; justify-content:space-between; align-items:center;
        }
        .faq-question:hover { color:var(--accent-gold); }
        .faq-answer { padding:0 24px 20px; color:var(--text-secondary); font-size:0.9rem; line-height:1.65; display:none; }
        .faq-item.open .faq-answer { display:block; }
        .faq-icon { font-size:1.3rem; transition: transform 0.3s ease; }
        .faq-item.open .faq-icon { transform: rotate(45deg); }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, rgba(20,22,27,0.9) 0%, var(--bg-secondary) 100%),
                        url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
            border-radius:var(--radius-xl); padding:60px 40px; text-align:left;
            border:1px solid var(--border-active);
        }
        .cta-section h2 { font-size:2rem; font-weight:800; margin-bottom:12px; }
        .cta-section p { color:var(--text-secondary); margin-bottom:28px; font-size:1.05rem; max-width:550px; }
        /* Footer */
        .site-footer {
            background:var(--bg-secondary); border-top:1px solid var(--border-subtle); padding:50px 0 30px; margin-top:20px;
        }
        .footer-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap:36px; margin-bottom:32px; }
        .footer-col h4 { font-size:1rem; font-weight:700; margin-bottom:16px; color:var(--text-primary); }
        .footer-col a, .footer-col p { display:block; color:var(--text-muted); font-size:0.85rem; margin-bottom:8px; transition:var(--transition-base); }
        .footer-col a:hover { color:var(--accent-gold); }
        .footer-bottom { text-align:left; color:var(--text-muted); font-size:0.78rem; border-top:1px solid var(--border-subtle); padding-top:20px; }
        /* FAB */
        .fab {
            position:fixed; left:24px; bottom:96px; z-index:50; width:56px; height:56px;
            border-radius:50%; background: var(--bg-card); border:2px solid var(--accent-gold);
            display:flex; align-items:center; justify-content:center;
            box-shadow: 0 6px 25px rgba(212,175,55,0.25); opacity:0.85; color:var(--accent-gold);
            font-size:1.5rem; transition: var(--transition-base);
        }
        .fab:hover { opacity:1; transform:scale(1.1); box-shadow: 0 6px 32px rgba(212,175,55,0.45); }
        .fab:active { transform:scale(0.95) translateY(2px); }
        .fab .badge-dot {
            position:absolute; top:4px; right:4px; width:10px; height:10px; border-radius:50%;
            background:#D4AF37; border:2px solid var(--bg-card);
        }
        @media (min-width: 1024px) {
            .desktop-nav { display:flex; }
            .menu-toggle { display:none; }
            .mobile-menu { display:none; }
            .hero-title { font-size:3.2rem; }
            .hero-inner { padding:0 24px; }
        }
        @media (min-width: 768px) and (max-width: 1023px) {
            .desktop-nav { display:none; }
            .menu-toggle { display:block; }
            .hero-title { font-size:2.6rem; }
            .comparison-row { grid-template-columns:1fr; }
        }
        @media (max-width: 767px) {
            .desktop-nav { display:none; }
            .menu-toggle { display:block; }
            .hero-title { font-size:2rem; }
            .hero-timeline { flex-direction:column; align-items:flex-start; gap:12px; }
            .comparison-row { grid-template-columns:1fr; }
            .cta-section { padding:40px 24px; }
            .hero-form { flex-direction:column; }
            .hero-form input { min-width:100%; }
            section { padding:40px 0; }
            .section-title { font-size:1.6rem; }
            .header-actions .btn-login { padding:6px 14px; font-size:0.78rem; }
            .header-actions .btn-signup { padding:7px 16px; font-size:0.78rem; }
        }