/* roulang page: index */
:root {
            --primary-bg: #0B0C0E;
            --secondary-bg: #14161B;
            --card-bg: #1A1D24;
            --accent-gold: #D4AF37;
            --accent-gold-light: #E5C86B;
            --accent-bronze: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-medium: rgba(212, 175, 55, 0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 6px 28px rgba(212, 175, 55, 0.18);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }

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

        body {
            background-color: var(--primary-bg);
            color: var(--text-primary);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            line-height: 1.3;
            font-weight: 600;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: var(--transition);
        }

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

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

        .container {
            max-width: 1280px;
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Navigation */
        .navbar {
            background: rgba(11, 12, 14, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: var(--transition);
        }

        .navbar-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold) !important;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 16px !important;
            border-radius: 30px;
            transition: var(--transition);
        }

        .nav-link:hover, .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(212, 175, 55, 0.08);
        }

        .btn-outline-gold {
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            background: transparent;
            border-radius: 30px;
            padding: 8px 22px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-outline-gold:hover {
            background: rgba(212, 175, 55, 0.12);
            color: var(--accent-gold-light);
            border-color: var(--accent-gold-light);
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--accent-gold), #B4943C);
            color: #0B0C0E;
            border: none;
            border-radius: 30px;
            padding: 9px 26px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.3);
        }

        .btn-gold:hover {
            background: linear-gradient(135deg, #E5C86B, #C9A63B);
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.45);
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(135deg, #0B0C0E 0%, #1A1D24 40%, #14161B 100%);
            position: relative;
            overflow: hidden;
            padding: 90px 0 80px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(212, 175, 55, 0.15);
            border: 1px solid var(--border-medium);
            color: var(--accent-gold);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 2.9rem;
            font-weight: 700;
            line-height: 1.15;
            color: #FFFFFF;
            margin-bottom: 22px;
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--accent-gold), #F0D98C);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 620px;
            margin-bottom: 32px;
        }

        .hero-vip-badge {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .vip-chip {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            padding: 12px 20px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
        }

        .vip-chip i {
            color: var(--accent-gold);
            font-size: 1.3rem;
        }

        /* Section Base */
        .section-block {
            padding: 70px 0;
        }

        .section-label {
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 1px;
            display: block;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 700px;
            line-height: 1.7;
        }

        /* Cards */
        .card-custom {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: var(--transition);
            height: 100%;
        }

        .card-custom:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }

        .card-custom .card-icon {
            width: 50px;
            height: 50px;
            background: rgba(212, 175, 55, 0.1);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--accent-gold);
            font-size: 1.4rem;
        }

        .card-custom h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #FFFFFF;
        }

        .card-custom p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* Featured Track */
        .track-horizontal {
            display: flex;
            gap: 18px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .track-horizontal::-webkit-scrollbar {
            height: 4px;
        }

        .track-horizontal::-webkit-scrollbar-thumb {
            background: var(--accent-gold);
            border-radius: 4px;
        }

        .track-card {
            min-width: 220px;
            max-width: 260px;
            flex-shrink: 0;
            scroll-snap-align: start;
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
        }

        .track-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }

        .track-card img {
            width: 100%;
            height: 140px;
            object-fit: cover;
        }

        .track-card .track-body {
            padding: 14px;
        }

        .track-card .track-body h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 4px;
        }

        .track-card .track-body .meta {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* Table */
        .table-custom {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0 8px;
        }

        .table-custom th {
            text-align: left;
            color: var(--text-muted);
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.5px;
            padding: 8px 12px;
        }

        .table-custom td {
            background: var(--card-bg);
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-weight: 500;
            vertical-align: middle;
        }

        .table-custom tr td:first-child {
            border-left: 3px solid var(--accent-gold);
        }

        .badge-gold {
            background: rgba(212, 175, 55, 0.15);
            color: var(--accent-gold);
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
        }

        /* Testimonial */
        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
        }

        .testimonial-card .quote {
            font-style: italic;
            color: var(--text-secondary);
            margin-bottom: 14px;
            font-size: 0.95rem;
        }

        .testimonial-card .author {
            font-weight: 700;
            color: var(--accent-gold);
        }

        /* FAQ */
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-item .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #FFFFFF;
        }

        .faq-item .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1A1D24, #0B0C0E);
            border: 1px solid var(--border-medium);
            border-radius: var(--radius-xl);
            padding: 50px;
            text-align: center;
        }

        .cta-section h2 {
            color: #FFFFFF;
            font-weight: 700;
            font-size: 1.8rem;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        /* Footer */
        .footer {
            background: #090A0C;
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 30px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

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

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

        .footer h5 {
            color: #FFFFFF;
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 1rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 40px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
        }

        /* FAB */
        .fab-custom {
            position: fixed;
            left: 24px;
            bottom: 24px;
            z-index: 50;
            width: 58px;
            height: 58px;
            background: linear-gradient(135deg, #D4AF37, #B4943C);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0B0C0E;
            font-size: 1.5rem;
            box-shadow: 0 6px 24px rgba(212, 175, 55, 0.4);
            transition: var(--transition);
            cursor: pointer;
            border: 2px solid #F0D98C;
        }

        .fab-custom:hover {
            transform: scale(1.1);
            box-shadow: 0 10px 30px rgba(212, 175, 55, 0.6);
        }

        @media (max-width: 992px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-section {
                padding: 60px 0 50px;
            }
            .cta-section {
                padding: 30px 20px;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .navbar-brand {
                font-size: 1rem;
            }
            .track-card {
                min-width: 160px;
                max-width: 200px;
            }
            .fab-custom {
                width: 50px;
                height: 50px;
                left: 12px;
                bottom: 16px;
                font-size: 1.3rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0B0C0E;
            --secondary-bg: #14161B;
            --card-bg: #1A1D24;
            --accent-gold: #D4AF37;
            --accent-gold-light: #E5C86B;
            --accent-bronze: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-medium: rgba(212, 175, 55, 0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 6px 28px rgba(212, 175, 55, 0.18);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }
body {
            background-color: var(--primary-bg);
            color: var(--text-primary);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: var(--transition);
        }
a:hover {
            color: var(--accent-gold-light);
        }
img {
            max-width: 100%;
            height: auto;
            display: block;
        }
.container {
            max-width: 1280px;
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }
.navbar {
            background: rgba(11, 12, 14, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: var(--transition);
        }
.navbar-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold) !important;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
.navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }
.nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 16px !important;
            border-radius: 30px;
            transition: var(--transition);
        }
.nav-link:hover, .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(212, 175, 55, 0.08);
        }
.btn-outline-gold {
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            background: transparent;
            border-radius: 30px;
            padding: 8px 22px;
            font-weight: 600;
            transition: var(--transition);
        }
.btn-outline-gold:hover {
            background: rgba(212, 175, 55, 0.12);
            color: var(--accent-gold-light);
            border-color: var(--accent-gold-light);
        }
.btn-gold {
            background: linear-gradient(135deg, var(--accent-gold), #B4943C);
            color: #0B0C0E;
            border: none;
            border-radius: 30px;
            padding: 9px 26px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.3);
        }
.btn-gold:hover {
            background: linear-gradient(135deg, #E5C86B, #C9A63B);
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.45);
        }
.page-header-section {
            background: linear-gradient(135deg, #0B0C0E 0%, #1A1D24 40%, #14161B 100%);
            position: relative;
            overflow: hidden;
            padding: 60px 0 50px;
            border-bottom: 1px solid var(--border-subtle);
            text-align: center;
        }
.page-header-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
.page-header-section h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
.page-header-section p {
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto;
            font-size: 1rem;
        }
.section-label {
            display: inline-block;
            background: rgba(212, 175, 55, 0.12);
            border: 1px solid var(--border-medium);
            color: var(--accent-gold);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.8px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
.strategy-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
.strategy-card:hover {
            border-color: var(--border-medium);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }
.strategy-card .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(212, 175, 55, 0.2), rgba(212, 175, 55, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }
.strategy-card .icon-wrap i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }
.strategy-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #FFFFFF;
        }
.strategy-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.6;
        }
.step-timeline {
            position: relative;
            padding-left: 40px;
        }
.step-timeline::before {
            content: '';
            position: absolute;
            left: 19px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--border-subtle);
        }
.step-item {
            position: relative;
            margin-bottom: 32px;
            padding-left: 24px;
        }
.step-item:last-child {
            margin-bottom: 0;
        }
.step-marker {
            position: absolute;
            left: -30px;
            top: 4px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), #B4943C);
            color: #0B0C0E;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
            z-index: 2;
        }
.step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 6px;
        }
.step-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
            margin-bottom: 0;
        }
.insight-panel {
            background: var(--secondary-bg);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            border: 1px solid var(--border-subtle);
        }
.insight-panel h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
.insight-panel ul {
            list-style: none;
            padding: 0;
        }
.insight-panel ul li {
            padding: 10px 0 10px 28px;
            position: relative;
            color: var(--text-secondary);
            font-size: 0.95rem;
            border-bottom: 1px solid rgba(255,255,255,0.04);
        }
.insight-panel ul li:last-child {
            border-bottom: none;
        }
.insight-panel ul li::before {
            content: '\f058';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 12px;
            color: var(--accent-gold);
            font-size: 0.9rem;
        }
.conversion-strip {
            background: linear-gradient(135deg, #1A1D24, #0B0C0E);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            padding: 50px 0;
            text-align: center;
        }
.conversion-strip h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
.conversion-strip p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            font-size: 0.95rem;
        }
.articles-mini-list {
            list-style: none;
            padding: 0;
        }
.articles-mini-list li {
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,255,255,0.04);
            display: flex;
            align-items: center;
            gap: 12px;
        }
.articles-mini-list li:last-child {
            border-bottom: none;
        }
.articles-mini-list li i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }
.articles-mini-list li a {
            font-weight: 500;
            font-size: 0.95rem;
        }
.footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            color: var(--text-secondary);
        }
.footer h5 {
            font-family: var(--font-heading);
            color: var(--accent-gold);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
.footer a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: var(--transition);
        }
.footer a:hover {
            color: var(--accent-gold-light);
        }
.footer .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.82rem;
            color: var(--text-muted);
            text-align: center;
        }
@media (max-width: 991px) {
            .navbar-collapse {
                background: rgba(11, 12, 14, 0.98);
                border-radius: var(--radius-lg);
                padding: 16px;
                margin-top: 12px;
            }
            .page-header-section h1 {
                font-size: 1.7rem;
            }
        }
@media (max-width: 768px) {
            .step-timeline {
                padding-left: 30px;
            }
            .step-timeline::before {
                left: 14px;
            }
            .step-marker {
                left: -24px;
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .step-item {
                padding-left: 16px;
            }
        }

/* roulang page: article */
:root {
            --primary-bg: #0B0C0E;
            --secondary-bg: #14161B;
            --card-bg: #1A1D24;
            --accent-gold: #D4AF37;
            --accent-gold-light: #E5C86B;
            --accent-bronze: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-medium: rgba(212, 175, 55, 0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 6px 28px rgba(212, 175, 55, 0.18);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            background-color: var(--primary-bg);
            color: var(--text-primary);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-gold-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1280px;
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }
        .navbar {
            background: rgba(11, 12, 14, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: var(--transition);
        }
        .navbar-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold) !important;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }
        .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 16px !important;
            border-radius: 30px;
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(212, 175, 55, 0.08);
        }
        .btn-outline-gold {
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            background: transparent;
            border-radius: 30px;
            padding: 8px 22px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-outline-gold:hover {
            background: rgba(212, 175, 55, 0.12);
            color: var(--accent-gold-light);
            border-color: var(--accent-gold-light);
        }
        .btn-gold {
            background: linear-gradient(135deg, var(--accent-gold), #B4943C);
            color: #0B0C0E;
            border: none;
            border-radius: 30px;
            padding: 9px 26px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.3);
        }
        .btn-gold:hover {
            background: linear-gradient(135deg, #E5C86B, #C9A63B);
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.45);
        }
        .section-padding {
            padding: 70px 0;
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .section-title span {
            background: linear-gradient(135deg, var(--accent-gold), #F0D98C);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 36px;
        }
        .article-header {
            background: linear-gradient(135deg, #0B0C0E 0%, #1A1D24 50%, #14161B 100%);
            padding: 70px 0 50px;
            border-bottom: 1px solid var(--border-subtle);
            position: relative;
        }
        .article-header::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(212, 175, 55, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            color: var(--accent-gold);
        }
        .article-h1 {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.2;
            color: #FFFFFF;
            margin-bottom: 20px;
        }
        .article-content {
            background: var(--secondary-bg);
            padding: 50px 0;
            border-bottom: 1px solid var(--border-subtle);
        }
        .article-body {
            max-width: 800px;
            margin: 0 auto;
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--text-secondary);
        }
        .article-body h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 36px 0 16px;
        }
        .article-body h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: var(--accent-gold-light);
            margin: 28px 0 12px;
        }
        .article-body p {
            margin-bottom: 18px;
        }
        .article-body ul, .article-body ol {
            margin: 16px 0;
            padding-left: 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 28px 0;
            box-shadow: var(--shadow-card);
        }
        .article-body blockquote {
            background: var(--card-bg);
            border-left: 4px solid var(--accent-gold);
            padding: 20px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--text-primary);
            font-style: italic;
        }
        .related-section {
            background: var(--primary-bg);
            padding: 60px 0;
        }
        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .related-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }
        .related-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 20px;
        }
        .related-card-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 8px;
        }
        .related-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .cta-strip {
            background: linear-gradient(135deg, #1A1D24, #0B0C0E);
            border-top: 1px solid var(--border-medium);
            border-bottom: 1px solid var(--border-medium);
            padding: 50px 0;
        }
        .cta-strip h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #FFFFFF;
        }
        .cta-strip p {
            color: var(--text-secondary);
        }
        .footer {
            background: var(--primary-bg);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 30px;
            font-size: 0.92rem;
            color: var(--text-muted);
        }
        .footer h5 {
            color: var(--accent-gold);
            font-weight: 600;
            margin-bottom: 18px;
            font-size: 1rem;
        }
        .footer a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--accent-gold-light);
        }
        .footer ul {
            list-style: none;
            padding-left: 0;
        }
        .footer ul li {
            margin-bottom: 8px;
        }
        .footer-bottom {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .not-found-box {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 60px 30px;
            text-align: center;
            max-width: 600px;
            margin: 60px auto;
        }
        .not-found-box i {
            font-size: 3rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }
        .not-found-box h3 {
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .article-h1 {
                font-size: 1.9rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .article-header {
                padding: 50px 0 30px;
            }
            .section-padding {
                padding: 40px 0;
            }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #0B0C0E;
            --secondary-bg: #14161B;
            --card-bg: #1A1D24;
            --accent-gold: #D4AF37;
            --accent-gold-light: #E5C86B;
            --accent-bronze: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-medium: rgba(212, 175, 55, 0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 6px 28px rgba(212, 175, 55, 0.18);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }

        body {
            background-color: var(--primary-bg);
            color: var(--text-primary);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: var(--transition);
        }

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

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

        .container {
            max-width: 1280px;
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Navigation */
        .navbar {
            background: rgba(11, 12, 14, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: var(--transition);
        }

        .navbar-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold) !important;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 16px !important;
            border-radius: 30px;
            transition: var(--transition);
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(212, 175, 55, 0.08);
        }

        .btn-outline-gold {
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            background: transparent;
            border-radius: 30px;
            padding: 8px 22px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-outline-gold:hover {
            background: rgba(212, 175, 55, 0.12);
            color: var(--accent-gold-light);
            border-color: var(--accent-gold-light);
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--accent-gold), #B4943C);
            color: #0B0C0E;
            border: none;
            border-radius: 30px;
            padding: 9px 26px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.3);
        }

        .btn-gold:hover {
            background: linear-gradient(135deg, #E5C86B, #C9A63B);
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.45);
        }

        /* Page Hero */
        .page-hero {
            background: linear-gradient(135deg, #0B0C0E 0%, #1A1D24 40%, #14161B 100%);
            position: relative;
            overflow: hidden;
            padding: 80px 0 60px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(212, 175, 55, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-badge {
            display: inline-block;
            background: rgba(212, 175, 55, 0.15);
            border: 1px solid var(--border-medium);
            color: var(--accent-gold);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .page-title {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.2;
            color: #FFFFFF;
            margin-bottom: 18px;
        }

        .page-title span {
            background: linear-gradient(135deg, var(--accent-gold), #F0D98C);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 680px;
            margin-bottom: 28px;
        }

        /* Sections */
        .section-block {
            padding: 70px 0;
        }

        .section-block.alt-bg {
            background-color: var(--secondary-bg);
        }

        .section-label {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--accent-gold);
            font-weight: 600;
            margin-bottom: 12px;
        }

        .section-heading {
            font-size: 2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
            line-height: 1.25;
        }

        .section-sub {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-bottom: 40px;
            max-width: 700px;
        }

        /* Strategy Cards */
        .strategy-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .strategy-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }

        .strategy-card .card-icon {
            font-size: 2.2rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
            display: block;
        }

        .strategy-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .strategy-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
            margin-bottom: 0;
        }

        .strategy-card .card-number {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 2.8rem;
            font-weight: 800;
            color: rgba(212, 175, 55, 0.08);
            pointer-events: none;
        }

        /* Feature List */
        .feature-list {
            list-style: none;
            padding: 0;
        }

        .feature-list li {
            padding: 16px 0;
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: flex-start;
            gap: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .feature-list li i {
            color: var(--accent-gold);
            margin-top: 3px;
            font-size: 1.1rem;
        }

        /* Table Strategy */
        .strategy-table-wrap {
            overflow-x: auto;
        }

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

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

        .strategy-table td {
            padding: 13px 18px;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
        }

        .strategy-table tbody tr:hover td {
            background: rgba(212, 175, 55, 0.04);
        }

        /* Tip Box */
        .tip-box {
            background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(180, 83, 9, 0.08));
            border: 1px solid var(--border-medium);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            position: relative;
        }

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

        .tip-box h3 {
            color: #FFFFFF;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .tip-box p {
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--border-subtle);
            padding: 20px 0;
        }

        .faq-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #FFFFFF;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0;
            transition: var(--transition);
        }

        .faq-item h4:hover {
            color: var(--accent-gold);
        }

        .faq-item h4 i {
            font-size: 0.9rem;
            color: var(--accent-gold);
            transition: var(--transition);
        }

        .faq-body {
            padding-top: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

        .faq-item.active .faq-body {
            display: block;
        }

        .faq-item.active h4 i {
            transform: rotate(180deg);
        }

        /* CTA Section */
        .cta-block {
            background: linear-gradient(135deg, #14161B, #1A1D24);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
        }

        .cta-block h2 {
            color: #FFFFFF;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-block p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Article List */
        .article-list-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            transition: var(--transition);
            display: flex;
            gap: 18px;
            align-items: center;
            margin-bottom: 16px;
        }

        .article-list-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-gold);
        }

        .article-list-card .article-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--secondary-bg);
        }

        .article-list-card .article-info h5 {
            font-size: 1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 6px;
        }

        .article-list-card .article-info p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 6px;
        }

        .article-list-card .article-info .meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 14px;
        }

        /* Footer */
        .footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 30px;
            color: var(--text-secondary);
        }

        .footer h5 {
            color: #FFFFFF;
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 1rem;
        }

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

        .footer ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-block;
            padding: 3px 0;
        }

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

        .footer-bottom {
            text-align: center;
            margin-top: 30px;
            padding-top: 18px;
            border-top: 1px solid var(--border-subtle);
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        @media (max-width: 991px) {
            .page-title {
                font-size: 2rem;
            }
            .section-heading {
                font-size: 1.6rem;
            }
            .navbar-nav {
                padding-top: 12px;
                gap: 4px;
            }
            .cta-block {
                padding: 36px 22px;
            }
        }

        @media (max-width: 767px) {
            .page-hero {
                padding: 60px 0 40px;
            }
            .page-title {
                font-size: 1.7rem;
            }
            .section-block {
                padding: 48px 0;
            }
            .article-list-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .article-list-card .article-thumb {
                width: 100%;
                height: 140px;
            }
        }

/* roulang page: category3 */
/* ============ DESIGN SYSTEM ALIGNED WITH HOME PAGE ============ */
        :root {
            --primary-bg: #0B0C0E;
            --secondary-bg: #14161B;
            --card-bg: #1A1D24;
            --accent-gold: #D4AF37;
            --accent-gold-light: #E5C86B;
            --accent-bronze: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-medium: rgba(212, 175, 55, 0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 6px 28px rgba(212, 175, 55, 0.18);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }
        
        * {
            box-sizing: border-box;
        }
        
        body {
            background-color: var(--primary-bg);
            color: var(--text-primary);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        
        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: var(--transition);
        }
        
        a:hover {
            color: var(--accent-gold-light);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        .container {
            max-width: 1280px;
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }
        
        /* Navigation - Shared */
        .navbar {
            background: rgba(11, 12, 14, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            transition: var(--transition);
        }
        
        .navbar-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold) !important;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }
        
        .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 16px !important;
            border-radius: 30px;
            transition: var(--transition);
        }
        
        .nav-link:hover, .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(212, 175, 55, 0.08);
        }
        
        .btn-outline-gold {
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            background: transparent;
            border-radius: 30px;
            padding: 8px 22px;
            font-weight: 600;
            transition: var(--transition);
        }
        
        .btn-outline-gold:hover {
            background: rgba(212, 175, 55, 0.12);
            color: var(--accent-gold-light);
            border-color: var(--accent-gold-light);
        }
        
        .btn-gold {
            background: linear-gradient(135deg, var(--accent-gold), #B4943C);
            color: #0B0C0E;
            border: none;
            border-radius: 30px;
            padding: 9px 26px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.3);
        }
        
        .btn-gold:hover {
            background: linear-gradient(135deg, #E5C86B, #C9A63B);
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.45);
        }
        
        /* Category Page Hero */
        .cat-hero {
            background: linear-gradient(135deg, #0B0C0E 0%, #1A1D24 40%, #14161B 100%);
            position: relative;
            overflow: hidden;
            padding: 70px 0 60px;
            border-bottom: 1px solid var(--border-subtle);
        }
        
        .cat-hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -15%;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(212, 175, 55, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .cat-hero-badge {
            display: inline-block;
            background: rgba(212, 175, 55, 0.15);
            border: 1px solid var(--border-medium);
            color: var(--accent-gold);
            padding: 5px 16px;
            border-radius: 30px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }
        
        .cat-hero-title {
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.2;
            color: #FFFFFF;
            margin-bottom: 18px;
        }
        
        .cat-hero-title span {
            background: linear-gradient(135deg, var(--accent-gold), #F0D98C);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .cat-hero-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 650px;
            margin-bottom: 28px;
        }
        
        .cat-hero-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        
        .stat-item {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 16px 24px;
            text-align: left;
            min-width: 120px;
        }
        
        .stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1;
        }
        
        .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        
        /* Section Titles */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            position: relative;
        }
        
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.6;
        }
        
        .section-accent {
            display: inline-block;
            width: 50px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 3px;
            margin-bottom: 16px;
        }
        
        /* Feature Cards */
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: var(--transition);
            height: 100%;
        }
        
        .feature-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }
        
        .feature-icon {
            width: 50px;
            height: 50px;
            background: rgba(212, 175, 55, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            margin-bottom: 18px;
        }
        
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
        }
        
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }
        
        /* Rating Cards */
        .rating-card {
            background: linear-gradient(135deg, #14161B 0%, #1A1D24 100%);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 20px;
            transition: var(--transition);
        }
        
        .rating-card:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-gold);
        }
        
        .rating-score {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1;
        }
        
        .rating-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 6px;
        }
        
        .rating-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        
        .rating-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 10px;
        }
        
        .tag {
            background: rgba(212, 175, 55, 0.1);
            border: 1px solid var(--border-subtle);
            color: var(--accent-gold-light);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
        }
        
        /* Comparison Table */
        .compare-table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        
        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }
        
        .compare-table thead th {
            background: rgba(212, 175, 55, 0.08);
            color: var(--accent-gold);
            font-weight: 700;
            padding: 16px 18px;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border-medium);
            text-align: left;
        }
        
        .compare-table tbody td {
            padding: 14px 18px;
            color: var(--text-secondary);
            font-size: 0.88rem;
            border-bottom: 1px solid var(--border-subtle);
            vertical-align: middle;
        }
        
        .compare-table tbody tr:last-child td {
            border-bottom: none;
        }
        
        .compare-table tbody tr:hover {
            background: rgba(212, 175, 55, 0.03);
        }
        
        .td-highlight {
            color: var(--accent-gold) !important;
            font-weight: 600;
        }
        
        /* CTA Block */
        .cta-block {
            background: linear-gradient(135deg, #14161B 0%, #0B0C0E 100%);
            border: 1px solid var(--border-medium);
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            text-align: center;
            margin: 40px 0;
        }
        
        .cta-block h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        
        .cta-block p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }
        
        /* FAQ */
        .faq-section {
            padding: 60px 0;
        }
        
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            color: #FFFFFF;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        
        .faq-question:hover {
            color: var(--accent-gold);
        }
        
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
            display: none;
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }
        
        .faq-item.active .faq-question {
            color: var(--accent-gold);
        }
        
        /* Tips List */
        .tips-list {
            list-style: none;
            padding: 0;
        }
        
        .tips-list li {
            padding: 10px 0 10px 32px;
            position: relative;
            color: var(--text-secondary);
            font-size: 0.94rem;
            line-height: 1.6;
            border-bottom: 1px solid var(--border-subtle);
        }
        
        .tips-list li:last-child {
            border-bottom: none;
        }
        
        .tips-list li::before {
            content: '\f058';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 10px;
            color: var(--accent-gold);
            font-size: 1rem;
        }
        
        /* Footer - Shared */
        .footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 24px;
            color: var(--text-muted);
        }
        
        .footer h5 {
            color: #FFFFFF;
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 1rem;
        }
        
        .footer ul {
            list-style: none;
            padding: 0;
        }
        
        .footer ul li {
            margin-bottom: 8px;
        }
        
        .footer ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        
        .footer ul li a:hover {
            color: var(--accent-gold);
        }
        
        .footer p.small {
            font-size: 0.85rem;
            line-height: 1.6;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 28px;
            margin-top: 28px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        
        /* FAB */
        .fab float {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
        }
        
        .fab-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #E5C86B, #B4943C);
            border: 2px solid #D4AF37;
            box-shadow: 0 6px 25px rgba(212, 175, 55, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #0B0C0E;
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.8;
            animation: gentle-bob 3s ease-in-out infinite;
        }
        
        .fab-btn:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 10px 30px rgba(212, 175, 55, 0.5);
        }
        
        .fab-badge {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #DC2626;
            border-radius: 50%;
            border: 2px solid #FFFFFF;
        }
        
        @keyframes gentle-bob {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .cat-hero-title { font-size: 2.1rem; }
            .section-title { font-size: 1.7rem; }
            .compare-table thead th, .compare-table tbody td { padding: 10px 12px; font-size: 0.8rem; }
        }
        
        @media (max-width: 768px) {
            .cat-hero { padding: 50px 0 40px; }
            .cat-hero-title { font-size: 1.7rem; }
            .cat-hero-desc { font-size: 0.9rem; }
            .stat-item { padding: 12px 16px; min-width: 90px; }
            .stat-num { font-size: 1.3rem; }
            .rating-card { padding: 18px; }
            .rating-score { font-size: 2rem; }
            .cta-block { padding: 32px 20px; }
            .cta-block h2 { font-size: 1.5rem; }
            .compare-table-wrap { margin: 16px -10px; }
        }
        
        @media (max-width: 520px) {
            .cat-hero-title { font-size: 1.4rem; }
            .cat-hero-stats { gap: 10px; }
            .stat-item { padding: 10px 12px; min-width: 70px; }
            .feature-card { padding: 20px 16px; }
            .navbar-brand { font-size: 1.1rem; }
        }

/* roulang page: category4 */
:root {
            --primary-bg: #0B0C0E;
            --secondary-bg: #14161B;
            --card-bg: #1A1D24;
            --accent-gold: #D4AF37;
            --accent-gold-light: #E5C86B;
            --accent-bronze: #B45309;
            --text-primary: #F5F5F7;
            --text-secondary: #CBD5E1;
            --text-muted: #A8A29E;
            --border-subtle: rgba(212, 175, 55, 0.18);
            --border-medium: rgba(212, 175, 55, 0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 6px 28px rgba(212, 175, 55, 0.18);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }
        body {
            background-color: var(--primary-bg);
            color: var(--text-primary);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { color: var(--accent-gold); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-gold-light); }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1280px; padding-left: 20px; padding-right: 20px; margin-left: auto; margin-right: auto; }
        /* Navigation */
        .navbar { background: rgba(11, 12, 14, 0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--border-subtle); padding: 12px 0; transition: var(--transition); }
        .navbar-brand { font-family: var(--font-heading); font-size: 1.3rem; font-weight: 700; color: var(--accent-gold) !important; letter-spacing: -0.3px; display: flex; align-items: center; gap: 8px; }
        .navbar-brand i { font-size: 1.6rem; color: var(--accent-gold); }
        .nav-link { color: var(--text-secondary) !important; font-weight: 500; margin: 0 6px; padding: 8px 16px !important; border-radius: 30px; transition: var(--transition); }
        .nav-link:hover, .nav-link.active { color: var(--accent-gold) !important; background: rgba(212, 175, 55, 0.08); }
        .btn-outline-gold { border: 1px solid var(--accent-gold); color: var(--accent-gold); background: transparent; border-radius: 30px; padding: 8px 22px; font-weight: 600; transition: var(--transition); }
        .btn-outline-gold:hover { background: rgba(212, 175, 55, 0.12); color: var(--accent-gold-light); border-color: var(--accent-gold-light); }
        .btn-gold { background: linear-gradient(135deg, var(--accent-gold), #B4943C); color: #0B0C0E; border: none; border-radius: 30px; padding: 9px 26px; font-weight: 700; transition: var(--transition); box-shadow: 0 4px 14px rgba(212, 175, 55, 0.3); }
        .btn-gold:hover { background: linear-gradient(135deg, #E5C86B, #C9A63B); color: #000; transform: translateY(-2px); box-shadow: 0 8px 22px rgba(212, 175, 55, 0.45); }
        /* Hero */
        .hero-section { background: linear-gradient(135deg, #0B0C0E 0%, #1A1D24 40%, #14161B 100%); position: relative; overflow: hidden; padding: 90px 0 80px; border-bottom: 1px solid var(--border-subtle); }
        .hero-section::before { content: ''; position: absolute; top: -30%; right: -10%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
        .hero-badge { display: inline-block; background: rgba(212, 175, 55, 0.15); border: 1px solid var(--border-medium); color: var(--accent-gold); padding: 6px 18px; border-radius: 30px; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 24px; }
        .hero-title { font-size: 2.9rem; font-weight: 700; line-height: 1.15; color: #FFFFFF; margin-bottom: 22px; }
        .hero-title span { background: linear-gradient(135deg, var(--accent-gold), #F0D98C); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero-desc { font-size: 1.05rem; color: var(--text-secondary); line-height: 1.7; max-width: 620px; margin-bottom: 32px; }
        .trust-checklist { list-style: none; padding: 0; margin: 0 0 28px; display: flex; flex-wrap: wrap; gap: 12px 24px; }
        .trust-checklist li { color: var(--text-secondary); font-size: 0.95rem; display: flex; align-items: center; gap: 8px; }
        .trust-checklist li i { color: #10B981; font-size: 1rem; }
        /* Sections */
        .section { padding: 70px 0; }
        .section-dark { background: var(--secondary-bg); }
        .section-header { margin-bottom: 48px; }
        .section-header h2 { font-size: 2rem; font-weight: 700; color: #FFFFFF; margin-bottom: 12px; }
        .section-header p { color: var(--text-secondary); max-width: 650px; font-size: 1rem; }
        .divider { width: 50px; height: 3px; background: var(--accent-gold); margin: 16px 0; border-radius: 2px; }
        /* Review Card */
        .review-card { background: var(--card-bg); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 28px; transition: var(--transition); height: 100%; position: relative; }
        .review-card:hover { border-color: var(--border-medium); box-shadow: var(--shadow-gold); transform: translateY(-4px); }
        .review-rank { position: absolute; top: -14px; right: 20px; background: var(--accent-gold); color: #000; font-weight: 700; font-size: 0.8rem; padding: 6px 16px; border-radius: 20px; }
        .review-logo { width: 80px; height: 80px; background: rgba(212, 175, 55, 0.08); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
        .review-logo i { font-size: 2.2rem; color: var(--accent-gold); }
        .review-title { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
        .review-rating { margin-bottom: 12px; }
        .review-rating i { color: var(--accent-gold); font-size: 0.85rem; }
        .review-rating span { color: var(--text-muted); font-size: 0.85rem; margin-left: 6px; }
        .review-features { list-style: none; padding: 0; margin: 12px 0; }
        .review-features li { font-size: 0.88rem; color: var(--text-secondary); padding: 6px 0; display: flex; align-items: center; gap: 8px; border-bottom: 1px solid rgba(255,255,255,0.04); }
        .review-features li i { color: var(--accent-gold); font-size: 0.8rem; }
        .review-price { font-weight: 700; color: var(--accent-gold-light); margin: 12px 0; font-size: 1rem; }
        /* Steps */
        .step-row { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; }
        .step-item { flex: 1 1 220px; background: var(--card-bg); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 28px 22px; text-align: center; transition: var(--transition); position: relative; }
        .step-item:hover { border-color: var(--border-medium); }
        .step-number { width: 44px; height: 44px; background: linear-gradient(135deg, var(--accent-gold), #B4943C); color: #000; font-weight: 700; font-size: 1.1rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
        .step-item h4 { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 6px; }
        .step-item p { font-size: 0.88rem; color: var(--text-muted); margin: 0; }
        /* Score bar */
        .score-bar-wrap { margin: 8px 0; }
        .score-bar-label { display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 4px; }
        .score-bar { height: 6px; background: rgba(255,255,255,0.08); border-radius: 3px; overflow: hidden; }
        .score-bar-fill { height: 100%; background: linear-gradient(90deg, var(--accent-gold), #E5C86B); border-radius: 3px; }
        /* Comparison Table */
        .table-compare { background: var(--card-bg); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-subtle); }
        .table-compare .table { color: var(--text-primary); margin: 0; }
        .table-compare .table th { background: rgba(212, 175, 55, 0.08); color: var(--accent-gold); font-weight: 600; font-size: 0.85rem; border-color: var(--border-subtle); padding: 16px; }
        .table-compare .table td { border-color: var(--border-subtle); padding: 16px; vertical-align: middle; color: var(--text-secondary); font-size: 0.9rem; }
        .table-compare .table td i.fa-check { color: #10B981; }
        .table-compare .table td i.fa-times { color: #DC2626; }
        /* FAQ */
        .accordion-item { background: transparent; border: 1px solid var(--border-subtle); border-radius: var(--radius-md) !important; margin-bottom: 12px; overflow: hidden; }
        .accordion-button { background: var(--card-bg); color: #fff; font-weight: 600; font-size: 0.95rem; padding: 18px 22px; box-shadow: none; }
        .accordion-button:not(.collapsed) { background: rgba(212, 175, 55, 0.06); color: var(--accent-gold); box-shadow: none; }
        .accordion-button::after { filter: invert(0.7); }
        .accordion-body { background: var(--card-bg); color: var(--text-secondary); font-size: 0.9rem; padding: 16px 22px 22px; }
        /* CTA block */
        .cta-panel { background: linear-gradient(135deg, #1A1D24 0%, #0B0C0E 100%); border: 1px solid var(--border-medium); border-radius: var(--radius-xl); padding: 48px 32px; text-align: center; }
        .cta-panel h2 { font-size: 1.8rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
        .cta-panel p { color: var(--text-secondary); max-width: 520px; margin: 0 auto 24px; }
        /* List block */
        .list-article-item { display: flex; gap: 16px; align-items: flex-start; padding: 20px 0; border-bottom: 1px solid rgba(255,255,255,0.04); }
        .list-article-item img { width: 90px; height: 70px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
        .list-article-content h5 { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
        .list-article-content h5 a { color: #fff; }
        .list-article-content h5 a:hover { color: var(--accent-gold); }
        .list-article-content .meta { font-size: 0.78rem; color: var(--text-muted); }
        /* FAB */
        .fab-left { position: fixed; left: 20px; bottom: 100px; z-index: 1050; width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, var(--accent-gold), #B4943C); color: #000; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; box-shadow: 0 6px 24px rgba(212, 175, 55, 0.35); transition: var(--transition); cursor: pointer; }
        .fab-left:hover { transform: scale(1.1); box-shadow: 0 8px 30px rgba(212, 175, 55, 0.5); }
        .fab-left:active { transform: scale(0.95); }
        /* Footer */
        .footer { background: var(--secondary-bg); border-top: 1px solid var(--border-subtle); padding: 50px 0 28px; color: var(--text-secondary); font-size: 0.9rem; }
        .footer h5 { color: #fff; font-weight: 600; margin-bottom: 16px; font-size: 0.95rem; }
        .footer a { color: var(--text-muted); }
        .footer a:hover { color: var(--accent-gold); }
        .footer-bottom { text-align: center; padding-top: 20px; margin-top: 30px; border-top: 1px solid rgba(255,255,255,0.05); font-size: 0.8rem; color: var(--text-muted); }
        /* Responsive */
        @media (max-width: 992px) {
            .hero-title { font-size: 2.2rem; }
            .hero-section { padding: 60px 0 50px; }
            .section { padding: 50px 0; }
            .navbar-nav { padding-top: 16px; }
            .navbar-nav .nav-link { padding: 10px 16px !important; }
            .navbar-nav .btn { margin-top: 8px; }
        }
        @media (max-width: 576px) {
            .hero-title { font-size: 1.7rem; }
            .hero-desc { font-size: 0.9rem; }
            .cta-panel { padding: 32px 18px; }
            .list-article-item img { width: 65px; height: 52px; }
            .step-row { flex-direction: column; }
        }

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