/* roulang page: index */
:root {
            --deep-bg: #0B0C10;
            --card-bg: #1a1c23;
            --card-alt: #15171e;
            --gold: #b8860b;
            --gold-bright: #d4a62c;
            --gold-light: #f0d78c;
            --red: #c0392b;
            --red-bright: #e74c3c;
            --text: #e0e0e0;
            --text-weak: #9a9da6;
            --border: #2a2d35;
            --border-accent: #3a3520;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.5);
            --shadow-gold: 0 0 30px rgba(184, 134, 11, 0.25);
            --font-heading: 'Segoe UI', 'Arial', sans-serif;
            --font-body: 'Segoe UI', 'Arial', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: var(--font-body);
            background-color: var(--deep-bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }
        ::selection { background: var(--gold); color: #000; }
        a { color: var(--gold-bright); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--gold-light); }
        img { max-width: 100%; height: auto; display: block; }
        .container-custom { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
        .section-spacing { padding: 70px 0; }
        @media (max-width: 768px) { .section-spacing { padding: 45px 0; } }

        /* Navigation */
        .main-nav {
            background: rgba(11,12,16,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 10px 0;
        }
        .nav-container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .nav-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--gold-bright);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-weak);
            position: relative;
            padding: 6px 0;
            transition: color 0.2s;
        }
        .nav-links a:hover,
        .nav-links a.active { color: var(--gold-bright); }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            border-radius: 1px;
            background: var(--gold);
        }
        .nav-cta-group { display: flex; gap: 10px; align-items: center; }
        .btn-login {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            padding: 8px 18px;
            border-radius: 6px;
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-login:hover { border-color: var(--gold); color: var(--gold-bright); }
        .btn-signup {
            background: linear-gradient(135deg, var(--red), #8b1a1a);
            border: none;
            color: #fff;
            padding: 9px 22px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.25s;
            box-shadow: 0 2px 12px rgba(192,57,43,0.35);
        }
        .btn-signup:hover { background: linear-gradient(135deg, var(--red-bright), #a71d2a); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(192,57,43,0.5); }
        .mobile-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }
        @media (max-width: 992px) {
            .nav-links { display: none; }
            .mobile-toggle { display: block; }
            .nav-container { justify-content: space-between; }
            .nav-cta-group .btn-login, .nav-cta-group .btn-signup { display: inline-block; }
        }
        .mobile-menu {
            display: none;
            background: #11131a;
            border-top: 1px solid var(--border);
            padding: 16px 20px;
            flex-direction: column;
            gap: 14px;
        }
        .mobile-menu.open { display: flex; }
        .mobile-menu a {
            font-weight: 500;
            font-size: 1rem;
            color: var(--text-weak);
            padding: 4px 0;
        }

        /* Hero */
        .hero {
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 90px 0 80px;
            text-align: left;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11,12,16,0.8) 0%, rgba(11,12,16,0.92) 100%);
        }
        .hero-content { position: relative; z-index: 2; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
        .hero-icon-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 28px;
        }
        .hero-icon-item {
            background: rgba(26,28,35,0.85);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--gold-light);
            backdrop-filter: blur(6px);
        }
        .hero-icon-item i { font-size: 1.2rem; color: var(--gold-bright); }
        .hero-status {
            background: rgba(184,134,11,0.1);
            border: 1px solid var(--border-accent);
            border-radius: 20px;
            padding: 8px 16px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--gold-light);
            margin-bottom: 22px;
        }
        .hero-status .dot { width: 8px; height: 8px; border-radius: 50%; background: #2ecc71; box-shadow: 0 0 8px rgba(46,204,113,0.5); }
        .hero h1 {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 14px;
        }
        .hero h1 span { color: var(--gold-bright); }
        .hero p.desc {
            font-size: 1.05rem;
            color: var(--text-weak);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }
        .btn-gold {
            background: linear-gradient(135deg, var(--gold-bright), #9e730d);
            border: none;
            color: #000;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-gold:hover { background: linear-gradient(135deg, #e0b635, #b8860b); transform: translateY(-2px); box-shadow: 0 6px 22px rgba(184,134,11,0.4); }
        .btn-outline-light-custom {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            padding: 12px 26px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-outline-light-custom:hover { border-color: var(--gold); color: var(--gold-bright); }
        @media (max-width: 768px) {
            .hero { padding: 55px 0 50px; }
            .hero h1 { font-size: 1.85rem; }
            .hero p.desc { font-size: 0.95rem; }
            .hero-icon-grid { gap: 10px; }
            .hero-icon-item { padding: 10px 14px; font-size: 0.82rem; }
        }

        /* Section titles */
        .section-title {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            text-align: left;
        }
        .section-subtitle {
            color: var(--text-weak);
            font-size: 1rem;
            margin-bottom: 36px;
            text-align: left;
            max-width: 700px;
        }
        .badge-tag {
            display: inline-block;
            background: rgba(184,134,11,0.15);
            color: var(--gold-light);
            border: 1px solid var(--border-accent);
            border-radius: 4px;
            padding: 4px 12px;
            font-size: 0.78rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        /* Card grid */
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .card-dark {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all 0.25s;
        }
        .card-dark:hover { border-color: var(--gold); box-shadow: var(--shadow-gold); transform: translateY(-2px); }
        .card-dark .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(184,134,11,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--gold-bright);
            margin-bottom: 16px;
        }
        .card-dark h4 { font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
        .card-dark p { font-size: 0.9rem; color: var(--text-weak); line-height: 1.6; margin-bottom: 0; }
        @media (max-width: 992px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } .grid-4 { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 576px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }

        /* CTA block */
        .cta-block {
            background: linear-gradient(135deg, #1a1206, #1c1002);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius);
            padding: 44px 36px;
            text-align: left;
            position: relative;
            overflow: hidden;
        }
        .cta-block::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(184,134,11,0.08);
        }
        .cta-block h3 { font-size: 1.5rem; font-weight: 700; color: #fff; margin-bottom: 10px; position: relative; z-index: 1; }
        .cta-block p { color: var(--text-weak); margin-bottom: 20px; position: relative; z-index: 1; }

        /* List group */
        .list-modern { list-style: none; padding: 0; }
        .list-modern li {
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text);
            font-size: 0.95rem;
        }
        .list-modern li:last-child { border-bottom: none; }
        .list-modern li i { color: var(--gold-bright); margin-top: 3px; flex-shrink: 0; }

        /* Article list */
        .article-list-grid { display: grid; grid-template-columns: 1fr 300px; gap: 30px; align-items: start; }
        .article-main-list .article-row {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }
        .article-row:last-child { border-bottom: none; }
        .article-row .art-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold);
            min-width: 36px;
        }
        .article-row a { font-weight: 600; color: #fff; font-size: 1rem; transition: color 0.2s; }
        .article-row a:hover { color: var(--gold-bright); }
        .article-row .art-meta { font-size: 0.8rem; color: var(--text-weak); }
        .side-promo {
            background: var(--card-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
        }
        .side-promo h4 { color: var(--gold-bright); font-weight: 700; margin-bottom: 10px; }
        .side-promo p { color: var(--text-weak); font-size: 0.9rem; margin-bottom: 14px; }
        @media (max-width: 768px) {
            .article-list-grid { grid-template-columns: 1fr; }
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--card-bg);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-item summary {
            padding: 16px 20px;
            font-weight: 700;
            cursor: pointer;
            color: #fff;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-item summary::after { content: '\f107'; font-family: 'Font Awesome 6 Free'; font-weight: 900; color: var(--gold-bright); transition: transform 0.2s; }
        .faq-item[open] summary::after { transform: rotate(180deg); }
        .faq-item .faq-body { padding: 0 20px 20px; color: var(--text-weak); line-height: 1.7; }

        /* Footer */
        .site-footer {
            background: #0a0b10;
            border-top: 1px solid var(--border);
            padding: 40px 0 24px;
            color: var(--text-weak);
            font-size: 0.9rem;
        }
        .footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
        .footer-grid h5 { color: #fff; font-weight: 700; margin-bottom: 14px; font-size: 1rem; }
        .footer-grid ul { list-style: none; padding: 0; }
        .footer-grid ul li { margin-bottom: 8px; }
        .footer-grid ul li a { color: var(--text-weak); font-size: 0.88rem; }
        .footer-grid ul li a:hover { color: var(--gold-bright); }
        .footer-bottom {
            max-width: 1140px;
            margin: 24px auto 0;
            padding: 16px 20px 0;
            border-top: 1px solid var(--border);
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-weak);
        }
        @media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

        /* Row highlight */
        .row-highlight {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }
        .row-highlight img { border-radius: var(--radius); border: 1px solid var(--border); }
        @media (max-width: 768px) { .row-highlight { grid-template-columns: 1fr; } }

        .text-gold { color: var(--gold-bright); }
        .text-muted-custom { color: var(--text-weak); }

/* roulang page: article */
:root {
            --deep-bg: #0B0C10;
            --card-bg: #1a1c23;
            --card-alt: #15171e;
            --gold: #b8860b;
            --gold-bright: #d4a62c;
            --gold-light: #f0d78c;
            --red: #c0392b;
            --red-bright: #e74c3c;
            --text: #e0e0e0;
            --text-weak: #9a9da6;
            --border: #2a2d35;
            --border-accent: #3a3520;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.5);
            --shadow-gold: 0 0 30px rgba(184, 134, 11, 0.25);
            --font-heading: 'Segoe UI', 'Arial', sans-serif;
            --font-body: 'Segoe UI', 'Arial', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: var(--font-body);
            background-color: var(--deep-bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: var(--gold-bright); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--gold-light); }
        img { max-width: 100%; height: auto; display: block; }
        .container-custom { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
        .section-spacing { padding: 70px 0; }

        .main-nav {
            background: rgba(11,12,16,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 10px 0;
        }
        .nav-container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .nav-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--gold-bright);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-weak);
            position: relative;
            padding: 6px 0;
            transition: color 0.2s;
        }
        .nav-links a:hover,
        .nav-links a.active { color: var(--gold-bright); }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            border-radius: 1px;
            background: var(--gold);
        }
        .nav-cta-group { display: flex; gap: 10px; align-items: center; }
        .btn-login {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            padding: 8px 18px;
            border-radius: 6px;
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-login:hover { border-color: var(--gold); color: var(--gold-bright); }
        .btn-signup {
            background: linear-gradient(135deg, var(--red), #8b1a1a);
            border: none;
            color: #fff;
            padding: 9px 22px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.25s;
            box-shadow: 0 2px 12px rgba(192,57,43,0.35);
        }
        .btn-signup:hover { background: linear-gradient(135deg, var(--red-bright), #a71d2a); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(192,57,43,0.5); }
        .mobile-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }
        .mobile-menu {
            display: none;
            background: #11131a;
            border-top: 1px solid var(--border);
            padding: 16px 20px;
            flex-direction: column;
            gap: 14px;
        }
        .mobile-menu.open { display: flex; }
        .mobile-menu a {
            font-weight: 500;
            font-size: 1rem;
            color: var(--text-weak);
            padding: 4px 0;
        }

        .article-hero {
            background: linear-gradient(180deg, #11131a 0%, var(--deep-bg) 100%);
            border-bottom: 1px solid var(--border);
            padding: 50px 0 40px;
        }
        .article-hero-content {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 18px;
            font-size: 0.85rem;
            color: var(--text-weak);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i { color: var(--gold-bright); font-size: 0.9rem; }
        .article-category-tag {
            background: rgba(184,134,11,0.15);
            border: 1px solid var(--border-accent);
            border-radius: 20px;
            padding: 6px 14px;
            color: var(--gold-light);
            font-weight: 500;
            font-size: 0.8rem;
            display: inline-block;
        }
        .article-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .article-excerpt {
            font-size: 1.05rem;
            color: var(--text-weak);
            line-height: 1.7;
        }

        .article-body {
            max-width: 800px;
            margin: 0 auto;
            padding: 50px 20px;
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--text);
        }
        .article-content h2 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin: 36px 0 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }
        .article-content h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--gold-light);
            margin: 28px 0 12px;
        }
        .article-content p {
            margin-bottom: 18px;
        }
        .article-content ul, .article-content ol {
            margin: 16px 0 18px 24px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            background: var(--card-bg);
            border-left: 4px solid var(--gold);
            padding: 18px 24px;
            margin: 28px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-weak);
        }
        .article-content .highlight-box {
            background: rgba(184,134,11,0.08);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius);
            padding: 20px 24px;
            margin: 28px 0;
        }
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            max-width: 600px;
            margin: 0 auto;
        }
        .article-not-found i {
            font-size: 3rem;
            color: var(--gold-bright);
            margin-bottom: 16px;
            display: block;
        }
        .article-not-found h3 {
            font-family: var(--font-heading);
            color: #fff;
            margin-bottom: 12px;
        }
        .btn-back {
            display: inline-block;
            background: linear-gradient(135deg, var(--red), #8b1a1a);
            color: #fff;
            padding: 12px 28px;
            border-radius: 6px;
            font-weight: 600;
            margin-top: 20px;
            transition: all 0.25s;
            box-shadow: 0 2px 12px rgba(192,57,43,0.35);
        }
        .btn-back:hover { background: linear-gradient(135deg, var(--red-bright), #a71d2a); transform: translateY(-2px); color: #fff; }

        .related-section {
            background: var(--card-alt);
            padding: 60px 0;
            border-top: 1px solid var(--border);
        }
        .related-section h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 30px;
            text-align: center;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.3s;
        }
        .related-card:hover {
            border-color: var(--gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }
        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 16px 18px;
        }
        .related-card-body h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card-body p {
            font-size: 0.85rem;
            color: var(--text-weak);
            margin: 0;
        }

        .site-footer {
            background: #0a0b0f;
            border-top: 1px solid var(--border);
            padding: 50px 0 30px;
        }
        .footer-grid {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }
        .footer-grid h5 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 14px;
            font-size: 0.95rem;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
        }
        .footer-grid ul li {
            margin-bottom: 8px;
        }
        .footer-grid ul li a {
            color: var(--text-weak);
            font-size: 0.85rem;
            transition: color 0.2s;
        }
        .footer-grid ul li a:hover {
            color: var(--gold-bright);
        }
        .footer-bottom {
            max-width: 1140px;
            margin: 30px auto 0;
            padding: 20px 20px 0;
            border-top: 1px solid var(--border);
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        @media (max-width: 992px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .article-title { font-size: 1.7rem; }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .mobile-toggle { display: block; }
            .nav-container { justify-content: space-between; }
            .nav-cta-group .btn-login,
            .nav-cta-group .btn-signup { display: inline-block; }
            .section-spacing { padding: 45px 0; }
            .related-grid { grid-template-columns: 1fr; }
            .article-title { font-size: 1.4rem; }
            .article-body { padding: 30px 16px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
        }
        @media (max-width: 520px) {
            .nav-brand { font-size: 0.95rem; }
            .btn-login { padding: 6px 12px; font-size: 0.8rem; }
            .btn-signup { padding: 7px 14px; font-size: 0.8rem; }
            .article-hero { padding: 30px 0; }
            .article-meta { flex-direction: column; gap: 8px; }
        }

/* roulang page: category1 */
:root {
            --deep-bg: #0B0C10;
            --card-bg: #1a1c23;
            --card-alt: #15171e;
            --gold: #b8860b;
            --gold-bright: #d4a62c;
            --gold-light: #f0d78c;
            --red: #c0392b;
            --red-bright: #e74c3c;
            --text: #e0e0e0;
            --text-weak: #9a9da6;
            --border: #2a2d35;
            --border-accent: #3a3520;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.5);
            --shadow-gold: 0 0 30px rgba(184, 134, 11, 0.25);
            --font-heading: 'Segoe UI', 'Arial', sans-serif;
            --font-body: 'Segoe UI', 'Arial', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: var(--font-body);
            background-color: var(--deep-bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: var(--gold-bright); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--gold-light); }
        img { max-width: 100%; height: auto; display: block; }
        .container-custom { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
        .section-spacing { padding: 70px 0; }
        @media (max-width: 768px) { .section-spacing { padding: 45px 0; } }

        /* Navigation */
        .main-nav {
            background: rgba(11,12,16,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 10px 0;
        }
        .nav-container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .nav-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--gold-bright);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-weak);
            position: relative;
            padding: 6px 0;
            transition: color 0.2s;
        }
        .nav-links a:hover, .nav-links a.active { color: var(--gold-bright); }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            border-radius: 1px;
            background: var(--gold);
        }
        .nav-cta-group { display: flex; gap: 10px; align-items: center; }
        .btn-login {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            padding: 8px 18px;
            border-radius: 6px;
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-login:hover { border-color: var(--gold); color: var(--gold-bright); }
        .btn-signup {
            background: linear-gradient(135deg, var(--red), #8b1a1a);
            border: none;
            color: #fff;
            padding: 9px 22px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.25s;
            box-shadow: 0 2px 12px rgba(192,57,43,0.35);
        }
        .btn-signup:hover { background: linear-gradient(135deg, var(--red-bright), #a71d2a); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(192,57,43,0.5); }
        .mobile-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }
        .mobile-menu {
            display: none;
            background: #11131a;
            border-top: 1px solid var(--border);
            padding: 16px 20px;
            flex-direction: column;
            gap: 14px;
        }
        .mobile-menu.open { display: flex; }
        .mobile-menu a {
            font-weight: 500;
            font-size: 1rem;
            color: var(--text-weak);
            padding: 4px 0;
        }
        @media (max-width: 992px) {
            .nav-links { display: none; }
            .mobile-toggle { display: block; }
        }
        @media (max-width: 576px) {
            .nav-brand { font-size: 1rem; }
            .nav-cta-group .btn-signup { padding: 7px 14px; font-size: 0.8rem; }
            .nav-cta-group .btn-login { padding: 6px 12px; font-size: 0.8rem; }
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            width: 52px;
            height: 52px;
            background: rgba(26,28,35,0.85);
            backdrop-filter: blur(8px);
            border: 2px solid var(--gold);
            border-radius: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold-bright);
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(184,134,11,0.3);
            transition: all 0.25s;
            opacity: 0.7;
            animation: floatFab 3s ease-in-out infinite;
        }
        .fab-left:hover { opacity: 1; transform: scale(1.1); box-shadow: 0 6px 28px rgba(212,166,44,0.5); }
        .fab-left:active { transform: scale(0.95) translateY(2px); }
        @keyframes floatFab {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

        /* Hero */
        .hero {
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0 70px;
            text-align: left;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,12,16,0.85) 0%, rgba(11,12,16,0.92) 100%);
        }
        .hero-content { position: relative; z-index: 2; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .hero-text h1 {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--gold-bright);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .hero-text .subtitle {
            font-size: 1.05rem;
            color: var(--text-weak);
            margin-bottom: 24px;
        }
        .hero-cta-group { display: flex; gap: 12px; flex-wrap: wrap; }
        .btn-primary-gold {
            background: linear-gradient(135deg, var(--gold-bright), var(--gold));
            border: none;
            color: #000;
            padding: 12px 28px;
            border-radius: 6px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.25s;
            box-shadow: 0 4px 16px rgba(212,166,44,0.4);
        }
        .btn-primary-gold:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,166,44,0.6); }
        .btn-outline-gold {
            background: transparent;
            border: 2px solid var(--gold);
            color: var(--gold-light);
            padding: 12px 28px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s;
        }
        .btn-outline-gold:hover { background: rgba(184,134,11,0.1); border-color: var(--gold-bright); }
        .hero-stats {
            display: flex;
            gap: 30px;
            margin-top: 24px;
        }
        .stat-item { text-align: center; }
        .stat-number { font-size: 1.8rem; font-weight: 700; color: var(--gold-light); }
        .stat-label { font-size: 0.85rem; color: var(--text-weak); }
        .hero-image-wrapper {
            background: var(--card-bg);
            border: 2px solid var(--border-accent);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-gold);
            position: relative;
        }
        .hero-image-wrapper img { width: 100%; object-fit: cover; }
        .hero-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--red);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
        }
        @media (max-width: 768px) {
            .hero-grid { grid-template-columns: 1fr; gap: 30px; }
            .hero-text h1 { font-size: 1.8rem; }
            .hero-stats { gap: 15px; flex-wrap: wrap; }
        }

        /* Metric Dashboard */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin: 0 auto;
        }
        .metric-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 22px;
            text-align: left;
            transition: all 0.25s;
        }
        .metric-card:hover { border-color: var(--gold); box-shadow: var(--shadow-sm); }
        .metric-icon { font-size: 1.6rem; color: var(--gold-bright); margin-bottom: 8px; }
        .metric-value { font-size: 1.6rem; font-weight: 700; color: #fff; }
        .metric-label { font-size: 0.85rem; color: var(--text-weak); margin-top: 4px; }
        @media (max-width: 768px) { .metrics-grid { grid-template-columns: 1fr 1fr; } }

        /* Strategy Matrix */
        .strategy-table {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
        }
        .strategy-row {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 15px;
            padding: 18px 22px;
            border-bottom: 1px solid var(--border);
            align-items: center;
            transition: background 0.2s;
        }
        .strategy-row:last-child { border-bottom: none; }
        .strategy-row.header { background: var(--card-alt); font-weight: 700; color: var(--gold-light); border-bottom: 2px solid var(--border-accent); }
        .strategy-row:hover:not(.header) { background: rgba(26,28,35,0.5); }
        .strategy-name { font-weight: 600; color: #fff; }
        .strategy-risk { color: var(--gold-bright); font-weight: 500; }
        .strategy-winrate { color: #2ecc71; font-weight: 600; }
        .strategy-action .btn-sm {
            background: var(--red);
            border: none;
            color: #fff;
            padding: 6px 16px;
            border-radius: 4px;
            font-size: 0.8rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .strategy-action .btn-sm:hover { background: var(--red-bright); }
        @media (max-width: 768px) {
            .strategy-row { grid-template-columns: 1fr 1fr; gap: 8px; padding: 14px 16px; }
            .strategy-row.header { display: none; }
        }

        /* Comparison */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .comparison-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            transition: all 0.25s;
        }
        .comparison-card:hover { border-color: var(--gold); }
        .comparison-card h3 { font-family: var(--font-heading); color: var(--gold-bright); margin-bottom: 12px; }
        .comparison-list li { padding: 8px 0; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; font-size: 0.95rem; }
        .comparison-list li i.fa-check { color: #2ecc71; }
        .comparison-list li i.fa-times { color: #e74c3c; }
        @media (max-width: 768px) { .comparison-grid { grid-template-columns: 1fr; } }

        /* FAQ */
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.2s;
        }
        .faq-question:hover { background: var(--card-alt); }
        .faq-answer { padding: 0 22px 18px; color: var(--text-weak); display: none; font-size: 0.95rem; }
        .faq-item.open .faq-answer { display: block; }
        .faq-question i { transition: transform 0.3s; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }

        /* CTA */
        .cta-section {
            background: var(--card-alt);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius);
            padding: 50px 30px;
            text-align: left;
        }
        .cta-section h2 { font-family: var(--font-heading); color: var(--gold-bright); margin-bottom: 14px; }
        .cta-section p { color: var(--text-weak); margin-bottom: 20px; }

        /* Footer */
        .site-footer {
            background: #0a0b0f;
            border-top: 2px solid var(--border);
            padding: 50px 20px 20px;
            color: var(--text-weak);
            font-size: 0.9rem;
        }
        .footer-grid {
            max-width: 1140px;
            margin: 0 auto 30px;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 30px;
        }
        .footer-grid h5 { color: var(--gold-bright); font-weight: 600; margin-bottom: 12px; }
        .footer-grid ul { list-style: none; padding: 0; }
        .footer-grid ul li { margin-bottom: 8px; }
        .footer-bottom {
            max-width: 1140px;
            margin: 0 auto;
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        @media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; } }

/* roulang page: category2 */
:root {
            --deep-bg: #0B0C10;
            --card-bg: #1a1c23;
            --card-alt: #15171e;
            --gold: #b8860b;
            --gold-bright: #d4a62c;
            --gold-light: #f0d78c;
            --red: #c0392b;
            --red-bright: #e74c3c;
            --text: #e0e0e0;
            --text-weak: #9a9da6;
            --border: #2a2d35;
            --border-accent: #3a3520;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.5);
            --shadow-gold: 0 0 30px rgba(184, 134, 11, 0.25);
            --font-heading: 'Segoe UI', 'Arial', sans-serif;
            --font-body: 'Segoe UI', 'Arial', sans-serif;
        }
        body {
            font-family: var(--font-body);
            background-color: var(--deep-bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: var(--gold-bright); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--gold-light); }
        img { max-width: 100%; height: auto; display: block; }
        .container-custom { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
        .section-spacing { padding: 70px 0; }
        @media (max-width: 768px) { .section-spacing { padding: 45px 0; } }

        /* Navigation */
        .main-nav {
            background: rgba(11,12,16,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 10px 0;
        }
        .nav-container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .nav-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--gold-bright);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-weak);
            position: relative;
            padding: 6px 0;
            transition: color 0.2s;
        }
        .nav-links a:hover,
        .nav-links a.active { color: var(--gold-bright); }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            border-radius: 1px;
            background: var(--gold);
        }
        .nav-cta-group { display: flex; gap: 10px; align-items: center; }
        .btn-login {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            padding: 8px 18px;
            border-radius: 6px;
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-login:hover { border-color: var(--gold); color: var(--gold-bright); }
        .btn-signup {
            background: linear-gradient(135deg, var(--red), #8b1a1a);
            border: none;
            color: #fff;
            padding: 9px 22px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.25s;
            box-shadow: 0 2px 12px rgba(192,57,43,0.35);
        }
        .btn-signup:hover { background: linear-gradient(135deg, var(--red-bright), #a71d2a); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(192,57,43,0.5); }
        .mobile-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }
        .mobile-menu {
            display: none;
            background: #11131a;
            border-top: 1px solid var(--border);
            padding: 16px 20px;
            flex-direction: column;
            gap: 14px;
        }
        .mobile-menu.open { display: flex; }
        .mobile-menu a {
            font-weight: 500;
            font-size: 1rem;
            color: var(--text-weak);
            padding: 4px 0;
        }
        @media (max-width: 992px) {
            .nav-links { display: none; }
            .mobile-toggle { display: block; }
            .nav-container { justify-content: space-between; }
            .nav-cta-group .btn-login, .nav-cta-group .btn-signup { display: inline-block; }
        }

        /* Hero */
        .hero-bento {
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0;
        }
        .hero-bento::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,12,16,0.85) 0%, rgba(11,12,16,0.94) 100%);
        }
        .bento-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            grid-template-rows: auto auto;
            gap: 20px;
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .bento-main {
            grid-row: span 2;
            background: rgba(26,28,35,0.75);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius);
            padding: 40px 35px;
            backdrop-filter: blur(8px);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .bento-main h1 {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .bento-main h1 span { color: var(--gold-bright); }
        .bento-main .lead {
            color: var(--text-weak);
            font-size: 1.05rem;
            margin-bottom: 24px;
            line-height: 1.6;
        }
        .bento-stats {
            display: flex;
            gap: 30px;
            margin-top: 10px;
        }
        .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--gold-bright);
            line-height: 1;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-top: 4px;
        }
        .bento-feature {
            background: rgba(26,28,35,0.75);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius);
            padding: 28px 24px;
            backdrop-filter: blur(8px);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .bento-feature i {
            font-size: 2rem;
            color: var(--gold-bright);
            margin-bottom: 12px;
        }
        .bento-feature h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .bento-feature p {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin-bottom: 0;
            line-height: 1.5;
        }
        .bento-cta-strip {
            position: relative;
            z-index: 2;
            max-width: 1140px;
            margin: 24px auto 0;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: linear-gradient(135deg, rgba(184,134,11,0.15), rgba(184,134,11,0.05));
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-sm);
            padding: 18px 28px;
            backdrop-filter: blur(6px);
            flex-wrap: wrap;
            gap: 16px;
        }
        .bento-cta-strip span {
            font-weight: 500;
            color: var(--gold-light);
            font-size: 0.95rem;
        }
        .btn-cta-strip {
            background: linear-gradient(135deg, var(--gold-bright), var(--gold));
            border: none;
            color: #1a1a1a;
            padding: 10px 28px;
            border-radius: 6px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.3s;
        }
        .btn-cta-strip:hover { background: linear-gradient(135deg, var(--gold-light), var(--gold-bright)); transform: translateY(-2px); box-shadow: var(--shadow-gold); }
        @media (max-width: 768px) {
            .bento-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .bento-main { grid-row: span 1; padding: 28px 20px; }
            .bento-main h1 { font-size: 1.8rem; }
            .bento-stats { gap: 20px; flex-wrap: wrap; }
            .bento-cta-strip { justify-content: center; text-align: center; }
        }

        /* Section Titles */
        .section-title {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .section-subtitle {
            color: var(--text-weak);
            font-size: 1rem;
            margin-bottom: 40px;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .section-title { font-size: 1.5rem; }
        }

        /* Strategy Cards */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }
        .strategy-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }
        .strategy-card:hover {
            border-color: var(--gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .strategy-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(184,134,11,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 1.3rem;
            color: var(--gold-bright);
        }
        .strategy-card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }
        .strategy-card p {
            color: var(--text-weak);
            font-size: 0.9rem;
            line-height: 1.5;
            margin-bottom: 0;
        }
        .strategy-card .badge-difficulty {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 14px;
        }
        .badge-intermediate {
            background: rgba(184,134,11,0.15);
            color: var(--gold-bright);
        }
        .badge-advanced {
            background: rgba(192,57,43,0.15);
            color: var(--red-bright);
        }

        /* Metrics Dashboard */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }
        .metric-card {
            background: var(--card-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: left;
        }
        .metric-big {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--gold-bright);
            line-height: 1;
        }
        .metric-desc {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin-top: 8px;
        }

        /* Comparison Table */
        .compare-table-wrap {
            overflow-x: auto;
            margin-top: 20px;
        }
        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
        }
        .compare-table th {
            background: var(--card-alt);
            color: var(--gold-bright);
            font-weight: 600;
            padding: 16px 18px;
            text-align: left;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border);
        }
        .compare-table td {
            padding: 14px 18px;
            color: var(--text);
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border);
        }
        .compare-table tr:last-child td { border-bottom: none; }
        .compare-table tr:hover td { background: rgba(184,134,11,0.05); }

        /* Faq */
        .faq-list { max-width: 800px; }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.2s;
            font-size: 0.95rem;
        }
        .faq-question:hover { background: rgba(255,255,255,0.02); }
        .faq-question i { transition: transform 0.3s; color: var(--gold-bright); }
        .faq-answer {
            padding: 0 22px 18px;
            color: var(--text-weak);
            font-size: 0.9rem;
            line-height: 1.6;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }

        /* CTA */
        .cta-section {
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            padding: 50px 40px;
            text-align: left;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11,12,16,0.92) 0%, rgba(11,12,16,0.6) 100%);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }
        .cta-inner h2 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-inner p { color: var(--text-weak); margin-bottom: 0; font-size: 0.95rem; }
        .btn-cta-large {
            background: linear-gradient(135deg, var(--red), #8b1a1a);
            border: none;
            color: #fff;
            padding: 14px 36px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s;
            white-space: nowrap;
            box-shadow: 0 4px 18px rgba(192,57,43,0.4);
        }
        .btn-cta-large:hover { background: linear-gradient(135deg, var(--red-bright), #a71d2a); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(192,57,43,0.6); }

        /* Footer */
        .site-footer {
            background: #0a0b0f;
            border-top: 1px solid var(--border);
            padding: 50px 20px 24px;
            margin-top: 60px;
        }
        .footer-grid {
            max-width: 1140px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
        }
        .footer-grid h5 {
            font-family: var(--font-heading);
            color: var(--gold-bright);
            font-weight: 600;
            margin-bottom: 14px;
            font-size: 0.95rem;
        }
        .footer-grid ul { list-style: none; padding: 0; margin: 0; }
        .footer-grid ul li { margin-bottom: 8px; }
        .footer-grid ul li a { color: var(--text-weak); font-size: 0.85rem; transition: color 0.2s; }
        .footer-grid ul li a:hover { color: var(--gold-light); }
        .footer-bottom {
            max-width: 1140px;
            margin: 30px auto 0;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-weak);
        }

/* roulang page: category3 */
:root {
            --deep-bg: #0B0C10;
            --card-bg: #1a1c23;
            --card-alt: #15171e;
            --gold: #b8860b;
            --gold-bright: #d4a62c;
            --gold-light: #f0d78c;
            --red: #c0392b;
            --red-bright: #e74c3c;
            --text: #e0e0e0;
            --text-weak: #9a9da6;
            --border: #2a2d35;
            --border-accent: #3a3520;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.5);
            --shadow-gold: 0 0 30px rgba(184, 134, 11, 0.25);
            --font-heading: 'Segoe UI', 'Arial', sans-serif;
            --font-body: 'Segoe UI', 'Arial', sans-serif;
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--deep-bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: var(--gold-bright);
            text-decoration: none;
            transition: color 0.2s;
        }

        a:hover {
            color: var(--gold-light);
        }

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

        .container-custom {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-spacing {
            padding: 70px 0;
        }

        /* Navigation */
        .main-nav {
            background: rgba(11,12,16,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 10px 0;
        }

        .nav-container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .nav-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--gold-bright);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-weak);
            position: relative;
            padding: 6px 0;
            transition: color 0.2s;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--gold-bright);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            border-radius: 1px;
            background: var(--gold);
        }

        .nav-cta-group {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            padding: 8px 18px;
            border-radius: 6px;
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s;
        }

        .btn-login:hover {
            border-color: var(--gold);
            color: var(--gold-bright);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--red), #8b1a1a);
            border: none;
            color: #fff;
            padding: 9px 22px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.25s;
            box-shadow: 0 2px 12px rgba(192,57,43,0.35);
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, var(--red-bright), #a71d2a);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(192,57,43,0.5);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.4rem;
            cursor: pointer;
        }

        .mobile-menu {
            display: none;
            background: #11131a;
            border-top: 1px solid var(--border);
            padding: 16px 20px;
            flex-direction: column;
            gap: 14px;
        }

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

        .mobile-menu a {
            font-weight: 500;
            font-size: 1rem;
            color: var(--text-weak);
            padding: 4px 0;
        }

        /* Hero Banner */
        .hero-banner {
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0 70px;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11,12,16,0.85) 0%, rgba(11,12,16,0.95) 100%);
        }

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

        .promo-badge {
            background: linear-gradient(135deg, var(--red), #8b1a1a);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.85rem;
            display: inline-block;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .hero-banner h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
            line-height: 1.2;
        }

        .hero-banner h1 .highlight {
            color: var(--gold-bright);
        }

        .hero-banner .lead-text {
            font-size: 1.1rem;
            color: var(--text-weak);
            max-width: 700px;
            margin-bottom: 30px;
            text-align: left;
        }

        .cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-custom {
            background: linear-gradient(135deg, var(--gold), var(--gold-bright));
            border: none;
            color: #0B0C10;
            padding: 13px 32px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.25s;
            box-shadow: var(--shadow-gold);
            text-transform: none;
        }

        .btn-primary-custom:hover {
            background: linear-gradient(135deg, var(--gold-bright), var(--gold-light));
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(184, 134, 11, 0.4);
            color: #0B0C10;
        }

        .btn-outline-custom {
            background: transparent;
            border: 2px solid var(--gold);
            color: var(--gold-bright);
            padding: 12px 30px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.25s;
        }

        .btn-outline-custom:hover {
            background: var(--gold);
            color: #0B0C10;
            border-color: var(--gold);
        }

        /* Metrics Dashboard */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 40px;
        }

        .metric-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 22px;
            text-align: left;
            transition: all 0.25s;
        }

        .metric-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .metric-icon {
            font-size: 2rem;
            color: var(--gold-bright);
            margin-bottom: 14px;
        }

        .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .metric-label {
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-top: 6px;
        }

        /* Strategy Matrix Section */
        .section-header {
            margin-bottom: 40px;
            text-align: left;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .section-header .divider {
            width: 60px;
            height: 3px;
            background: var(--gold);
            border-radius: 2px;
            margin: 12px 0 18px;
        }

        .section-header p {
            color: var(--text-weak);
            font-size: 1.05rem;
            max-width: 700px;
        }

        .strategy-list {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .strategy-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px;
            display: grid;
            grid-template-columns: 80px 1fr;
            gap: 24px;
            transition: all 0.25s;
        }

        .strategy-item:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-md);
        }

        .strategy-number {
            font-size: 3rem;
            font-weight: 900;
            color: var(--gold-bright);
            line-height: 1;
            opacity: 0.6;
        }

        .strategy-content h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .strategy-content p {
            color: var(--text-weak);
            margin-bottom: 14px;
            font-size: 0.95rem;
        }

        .tag-group {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .tag {
            background: rgba(184,134,11,0.15);
            border: 1px solid var(--border-accent);
            color: var(--gold-light);
            padding: 4px 12px;
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* Comparison Table */
        .comparison-section {
            background: var(--card-alt);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 40px;
            overflow-x: auto;
        }

        .comparison-table {
            width: 100%;
            min-width: 600px;
            border-collapse: collapse;
        }

        .comparison-table th {
            background: var(--card-bg);
            color: var(--gold-bright);
            font-weight: 700;
            padding: 14px 18px;
            text-align: left;
            border-bottom: 2px solid var(--border-accent);
            font-size: 0.95rem;
        }

        .comparison-table td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border);
            color: var(--text);
            font-size: 0.9rem;
        }

        .comparison-table tr:hover td {
            background: rgba(26,28,35,0.5);
        }

        .win-tag {
            background: rgba(39,174,96,0.2);
            color: #2ecc71;
            padding: 3px 10px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.8rem;
        }

        .risk-tag {
            background: rgba(231,76,60,0.2);
            color: #e74c3c;
            padding: 3px 10px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.8rem;
        }

        /* FAQ Section */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 22px;
            transition: all 0.2s;
        }

        .faq-item:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 10px;
        }

        .faq-answer {
            color: var(--text-weak);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-full {
            background: linear-gradient(135deg, rgba(184,134,11,0.1), rgba(192,57,43,0.15));
            border: 1px solid var(--border-accent);
            border-radius: var(--radius);
            padding: 50px 40px;
            text-align: left;
        }

        .cta-full h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        /* Footer */
        .site-footer {
            background: var(--deep-bg);
            border-top: 1px solid var(--border);
            padding: 50px 0 30px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .footer-grid h5 {
            font-family: var(--font-heading);
            color: var(--gold-bright);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

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

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

        .footer-grid ul li a {
            color: var(--text-weak);
            font-size: 0.9rem;
            transition: color 0.2s;
        }

        .footer-grid ul li a:hover {
            color: var(--gold-light);
        }

        .footer-bottom {
            text-align: left;
            color: var(--text-weak);
            font-size: 0.8rem;
            padding: 24px 20px 0;
            max-width: 1140px;
            margin: 0 auto;
            border-top: 1px solid var(--border);
            margin-top: 30px;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 18px;
            bottom: 90px;
            z-index: 1040;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--card-bg);
            border: 2px solid var(--gold);
            color: var(--gold-bright);
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all 0.25s;
            animation: pulseFloat 2.5s infinite ease-in-out;
        }

        .fab-floating:hover {
            background: var(--gold);
            color: #0B0C10;
            transform: scale(1.15);
            box-shadow: 0 0 40px rgba(184, 134, 11, 0.5);
        }

        @keyframes pulseFloat {
            0%, 100% { transform: translateY(0); opacity: 0.9; }
            50% { transform: translateY(-6px); opacity: 1; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-banner h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .strategy-item {
                grid-template-columns: 1fr;
            }
            .strategy-number {
                font-size: 2rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .metric-card {
                padding: 18px 14px;
            }
            .metric-value {
                font-size: 1.6rem;
            }
            .section-spacing {
                padding: 45px 0;
            }
            .hero-banner {
                padding: 50px 0 40px;
            }
            .hero-banner h1 {
                font-size: 1.8rem;
            }
            .comparison-section {
                padding: 18px;
            }
            .cta-full {
                padding: 30px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .nav-brand {
                font-size: 0.95rem;
            }
            .btn-login,
            .btn-signup {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .strategy-item {
                padding: 18px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category4 */
:root {
            --deep-bg: #0B0C10;
            --card-bg: #1a1c23;
            --card-alt: #15171e;
            --gold: #b8860b;
            --gold-bright: #d4a62c;
            --gold-light: #f0d78c;
            --red: #c0392b;
            --red-bright: #e74c3c;
            --text: #e0e0e0;
            --text-weak: #9a9da6;
            --border: #2a2d35;
            --border-accent: #3a3520;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.5);
            --shadow-gold: 0 0 30px rgba(184, 134, 11, 0.25);
            --font-heading: 'Segoe UI', 'Arial', sans-serif;
            --font-body: 'Segoe UI', 'Arial', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: var(--font-body);
            background-color: var(--deep-bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: var(--gold-bright); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--gold-light); }
        img { max-width: 100%; height: auto; display: block; }
        .container-custom { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
        .section-spacing { padding: 70px 0; }
        @media (max-width: 768px) { .section-spacing { padding: 45px 0; } }

        /* Navigation */
        .main-nav {
            background: rgba(11,12,16,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 10px 0;
        }
        .nav-container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .nav-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--gold-bright);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-weak);
            position: relative;
            padding: 6px 0;
            transition: color 0.2s;
            text-decoration: none;
        }
        .nav-links a:hover,
        .nav-links a.active { color: var(--gold-bright); }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            border-radius: 1px;
            background: var(--gold);
        }
        .nav-cta-group { display: flex; gap: 10px; align-items: center; }
        .btn-login {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            padding: 8px 18px;
            border-radius: 6px;
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-login:hover { border-color: var(--gold); color: var(--gold-bright); }
        .btn-signup {
            background: linear-gradient(135deg, var(--red), #8b1a1a);
            border: none;
            color: #fff;
            padding: 9px 22px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.25s;
            box-shadow: 0 2px 12px rgba(192,57,43,0.35);
        }
        .btn-signup:hover { background: linear-gradient(135deg, var(--red-bright), #a71d2a); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(192,57,43,0.5); }
        .mobile-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }
        .mobile-menu {
            display: none;
            background: #11131a;
            border-top: 1px solid var(--border);
            padding: 16px 20px;
            flex-direction: column;
            gap: 14px;
        }
        .mobile-menu.open { display: flex; }
        .mobile-menu a {
            font-weight: 500;
            font-size: 1rem;
            color: var(--text-weak);
            padding: 4px 0;
            text-decoration: none;
        }
        @media (max-width: 992px) {
            .nav-links { display: none; }
            .mobile-toggle { display: block; }
            .nav-container { justify-content: space-between; }
            .nav-cta-group .btn-login, .nav-cta-group .btn-signup { display: inline-block; }
        }

        /* Hero section */
        .hero-psychology {
            background: linear-gradient(135deg, #0B0C10 0%, #15171e 100%);
            position: relative;
            padding: 80px 0 60px;
            overflow: hidden;
        }
        .hero-psychology::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 40%, rgba(184,134,11,0.08) 0%, transparent 50%);
            pointer-events: none;
        }
        .hero-psychology .container-custom { position: relative; z-index: 2; }
        .hero-psychology-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
        .hero-psychology-text h1 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.6rem;
            color: var(--gold-bright);
            line-height: 1.3;
            margin-bottom: 18px;
        }
        .hero-psychology-text .sub {
            font-size: 1.1rem;
            color: var(--text-weak);
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-badge-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
        .hero-badge {
            background: rgba(184,134,11,0.12);
            border: 1px solid var(--border-accent);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 0.85rem;
            color: var(--gold-light);
            font-weight: 500;
        }
        .hero-psychology-visual {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
        }
        .visual-stat-row {
            display: flex;
            justify-content: space-between;
            margin-bottom: 20px;
        }
        .visual-stat {
            text-align: center;
            flex: 1;
        }
        .visual-stat .num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--gold-bright);
        }
        .visual-stat .lbl {
            font-size: 0.8rem;
            color: var(--text-weak);
            margin-top: 4px;
        }
        .visual-img-wrap {
            background: var(--card-alt);
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 16px;
        }
        .visual-img-wrap img { width: 100%; object-fit: cover; }
        .visual-list { list-style: none; padding: 0; }
        .visual-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text);
        }
        .visual-list li i { color: var(--gold-bright); font-size: 0.9rem; }
        @media (max-width: 992px) {
            .hero-psychology-grid { grid-template-columns: 1fr; }
            .hero-psychology-text h1 { font-size: 2rem; }
        }

        /* Dashboard metrics */
        .metrics-dash {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            margin-top: -30px;
            position: relative;
            z-index: 3;
        }
        .metrics-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .metric-item {
            text-align: left;
            padding: 16px;
            background: var(--card-alt);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
        }
        .metric-item .metric-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--gold-bright);
            margin-bottom: 4px;
        }
        .metric-item .metric-label {
            font-size: 0.85rem;
            color: var(--text-weak);
        }
        .metric-item .metric-change {
            font-size: 0.8rem;
            margin-top: 4px;
            color: #2ecc71;
        }
        @media (max-width: 768px) {
            .metrics-row { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .metrics-row { grid-template-columns: 1fr; }
        }

        /* Service Matrix */
        .service-matrix { padding: 70px 0; }
        .service-matrix h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: var(--text);
            margin-bottom: 12px;
            text-align: left;
        }
        .service-matrix .section-intro {
            color: var(--text-weak);
            font-size: 1.05rem;
            margin-bottom: 36px;
            text-align: left;
            max-width: 680px;
        }
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .matrix-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: all 0.25s;
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .matrix-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-gold);
            transform: translateY(-2px);
        }
        .matrix-icon {
            background: rgba(184,134,11,0.15);
            width: 48px;
            height: 48px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.3rem;
            color: var(--gold-bright);
        }
        .matrix-content h5 {
            font-weight: 600;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 6px;
        }
        .matrix-content p {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.6;
        }
        .matrix-tag {
            display: inline-block;
            background: rgba(192,57,43,0.15);
            color: var(--red-bright);
            font-size: 0.75rem;
            padding: 2px 10px;
            border-radius: 12px;
            font-weight: 600;
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .matrix-grid { grid-template-columns: 1fr; }
        }

        /* Result Comparison */
        .result-compare {
            background: var(--card-alt);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 40px;
        }
        .result-compare h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--text);
            margin-bottom: 8px;
            text-align: left;
        }
        .result-compare .compare-sub {
            color: var(--text-weak);
            margin-bottom: 30px;
            font-size: 0.95rem;
        }
        .compare-table {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 1px;
            background: var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .compare-cell {
            background: var(--card-bg);
            padding: 18px 16px;
            font-size: 0.9rem;
        }
        .compare-cell.header-cell {
            background: var(--card-alt);
            font-weight: 600;
            color: var(--gold-bright);
            font-size: 0.95rem;
        }
        .compare-cell.highlight { color: #2ecc71; font-weight: 600; }
        .compare-cell.lowlight { color: var(--red-bright); }
        @media (max-width: 768px) {
            .compare-table { grid-template-columns: 1fr 1fr; }
            .compare-table .header-cell:first-child { display: none; }
        }

        /* FAQ Section */
        .faq-section h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: var(--text);
            margin-bottom: 6px;
            text-align: left;
        }
        .faq-section .faq-sub {
            color: var(--text-weak);
            margin-bottom: 32px;
            font-size: 0.95rem;
        }
        .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 10px;
            overflow: hidden;
        }
        .accordion-button {
            background: var(--card-bg);
            color: var(--text);
            font-weight: 500;
            font-size: 1rem;
            padding: 16px 20px;
            box-shadow: none !important;
        }
        .accordion-button:focus { border-color: var(--border-accent); box-shadow: none; }
        .accordion-button:not(.collapsed) {
            background: var(--card-alt);
            color: var(--gold-bright);
        }
        .accordion-body {
            background: var(--card-bg);
            color: var(--text-weak);
            font-size: 0.95rem;
            padding: 16px 20px;
            line-height: 1.7;
            border-top: 1px solid var(--border);
        }

        /* CTA Form */
        .cta-form-block {
            background: linear-gradient(135deg, #1a1c23 0%, #0B0C10 100%);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius);
            padding: 44px 36px;
            text-align: left;
        }
        .cta-form-block h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.7rem;
            color: var(--gold-bright);
            margin-bottom: 8px;
        }
        .cta-form-block .cta-sub { color: var(--text-weak); margin-bottom: 22px; }
        .cta-form-inline {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .cta-form-inline input {
            flex: 1 1 200px;
            background: var(--card-alt);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 10px 16px;
            color: var(--text);
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .cta-form-inline input:focus { border-color: var(--gold-bright); }
        .btn-cta-form {
            background: linear-gradient(135deg, var(--gold-bright), #9a7b1c);
            border: none;
            color: #0B0C10;
            padding: 10px 28px;
            border-radius: 6px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.25s;
            white-space: nowrap;
        }
        .btn-cta-form:hover {
            background: linear-gradient(135deg, var(--gold-light), var(--gold-bright));
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(184,134,11,0.4);
        }
        @media (max-width: 520px) {
            .cta-form-inline { flex-direction: column; }
            .btn-cta-form { width: 100%; }
        }

        /* Footer */
        .site-footer {
            background: #0a0b0e;
            border-top: 1px solid var(--border);
            padding: 50px 0 30px;
            color: var(--text-weak);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px 40px;
            border-bottom: 1px solid var(--border);
        }
        .footer-grid h5 {
            font-weight: 600;
            color: var(--text);
            margin-bottom: 14px;
            font-size: 1rem;
        }
        .footer-grid ul { list-style: none; padding: 0; }
        .footer-grid ul li { margin-bottom: 8px; }
        .footer-grid ul li a { color: var(--text-weak); text-decoration: none; }
        .footer-grid ul li a:hover { color: var(--gold-bright); }
        .footer-bottom {
            text-align: center;
            padding: 20px 20px 0;
            font-size: 0.8rem;
            color: #6a6d75;
            max-width: 1140px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
        }

        /* FAB */
        .floating-fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(11,12,16,0.85);
            backdrop-filter: blur(10px);
            border: 2px solid var(--gold-bright);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold-bright);
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(184,134,11,0.3);
            transition: all 0.3s;
            animation: floatFAB 2.5s ease-in-out infinite;
        }
        .floating-fab:hover { transform: scale(1.1); box-shadow: 0 0 30px rgba(184,134,11,0.5); }
        .floating-fab:active { transform: scale(0.95); }
        @keyframes floatFAB {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }