/* roulang page: index */
:root {
            --primary: #B45309;
            --primary-light: #D97706;
            --accent: #F59E0B;
            --accent-glow: #FBBF24;
            --bg-base: #0B0C0E;
            --bg-surface: #14161B;
            --bg-card: #1A1C22;
            --text-main: #F5F5F7;
            --text-muted: #CBD5E1;
            --text-subtle: #A8A29E;
            --border-subtle: #2D3039;
            --border-accent: rgba(245,158,11,0.25);
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 20px rgba(245,158,11,0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-heading: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

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

        button, .button {
            cursor: pointer;
            font-family: var(--font-body);
            transition: var(--transition-base);
            border: none;
            outline: none;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 12, 14, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            transition: var(--transition-base);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--accent-glow);
            letter-spacing: -0.3px;
            white-space: nowrap;
            line-height: 1.2;
        }

        .logo span {
            display: block;
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            position: relative;
            padding: 0.35rem 0;
            letter-spacing: 0.2px;
            transition: var(--transition-base);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition-base);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .btn-login {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            background: transparent;
            border: 1.5px solid var(--border-accent);
            padding: 0.5rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .btn-login:hover {
            background: rgba(245,158,11,0.08);
            border-color: var(--accent);
            color: var(--accent-glow);
        }

        .btn-signup {
            font-weight: 600;
            font-size: 0.9rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #D4AF37 0%, #F59E0B 100%);
            padding: 0.55rem 1.8rem;
            border-radius: 50px;
            box-shadow: 0 4px 18px rgba(212,175,55,0.3);
            transition: var(--transition-base);
        }

        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(245,158,11,0.5);
            transform: translateY(-2px);
            color: #0B0C0E;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 1.6rem;
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 1.2rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(11,12,14,0.98);
                backdrop-filter: blur(20px);
                padding: 1.5rem 1.5rem 2rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-subtle);
            }

            .nav-links.open {
                display: flex;
            }

            .header-actions .btn-login,
            .header-actions .btn-signup {
                display: inline-block;
                font-size: 0.85rem;
                padding: 0.45rem 1.2rem;
            }
        }

        .page-main {
            padding-top: 80px;
        }

        .section {
            padding: 4rem 0;
        }

        .section-sm {
            padding: 2.5rem 0;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 1rem;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 800px;
            line-height: 1.7;
        }

        /* Hero - Questionnaire Style */
        .hero {
            position: relative;
            background: linear-gradient(180deg, #14161B 0%, #0B0C0E 100%);
            overflow: hidden;
            padding: 5rem 0 4rem;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -15%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(245,158,11,0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .hero-content h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -1px;
            line-height: 1.15;
            margin-bottom: 1.2rem;
        }

        .hero-content h1 .highlight {
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
            max-width: 520px;
        }

        .hero-stats {
            display: flex;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .hero-stat {
            text-align: left;
        }

        .hero-stat .stat-number {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-glow);
            line-height: 1;
        }

        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        .hero-cta {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-primary {
            font-weight: 700;
            font-size: 1rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
            padding: 0.85rem 2.2rem;
            border-radius: 50px;
            box-shadow: 0 6px 22px rgba(245,158,11,0.35);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition-base);
            border: none;
        }

        .btn-primary:hover {
            box-shadow: 0 8px 28px rgba(245,158,11,0.5);
            transform: translateY(-2px);
            color: #0B0C0E;
        }

        .btn-outline {
            font-weight: 600;
            font-size: 1rem;
            color: var(--accent);
            background: transparent;
            border: 2px solid var(--border-accent);
            padding: 0.8rem 2rem;
            border-radius: 50px;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-outline:hover {
            background: rgba(245,158,11,0.06);
            border-color: var(--accent);
            color: var(--accent-glow);
        }

        .hero-visual {
            position: relative;
        }

        .quiz-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 2rem;
            box-shadow: var(--shadow-card);
        }

        .quiz-panel .quiz-header {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
        }

        .quiz-panel .quiz-sub {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .quiz-options {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .quiz-option {
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 0.9rem 1.2rem;
            font-weight: 500;
            color: var(--text-main);
            cursor: pointer;
            transition: var(--transition-base);
            text-align: left;
            font-size: 0.95rem;
        }

        .quiz-option:hover {
            border-color: var(--accent);
            background: rgba(245,158,11,0.06);
            color: var(--accent-glow);
        }

        .quiz-result {
            margin-top: 1.5rem;
            background: rgba(245,158,11,0.08);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-md);
            padding: 1.2rem;
        }

        .quiz-result strong {
            color: var(--accent-glow);
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-visual {
                order: -1;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.9rem;
            }
            .hero-stats {
                gap: 1.2rem;
            }
        }

        /* Cards */
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

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

        .card-badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: #DC2626;
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.25rem 0.7rem;
            border-radius: 4px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }

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

        @media (max-width: 1024px) {
            .grid-3, .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .grid-3, .grid-4 {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        .card-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }

        .card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
        }

        .card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* App Download */
        .download-section {
            background: var(--bg-surface);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            justify-content: space-between;
            border: 1px solid var(--border-subtle);
        }

        .download-btns {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .btn-download {
            font-weight: 700;
            font-size: 1rem;
            color: #0B0C0E;
            background: var(--accent-glow);
            padding: 0.8rem 2rem;
            border-radius: 50px;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition-base);
            box-shadow: 0 4px 16px rgba(245,158,11,0.3);
        }

        .btn-download:hover {
            box-shadow: 0 6px 22px rgba(245,158,11,0.5);
            transform: translateY(-2px);
            color: #0B0C0E;
        }

        /* Comparison Table */
        .comparison-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0 12px;
        }

        .comparison-table th {
            font-family: var(--font-heading);
            font-weight: 700;
            color: var(--text-muted);
            text-align: left;
            padding: 0.75rem 1.2rem;
            font-size: 0.85rem;
            border-bottom: 2px solid var(--border-subtle);
        }

        .comparison-table td {
            background: var(--bg-card);
            padding: 1rem 1.2rem;
            border-radius: var(--radius-md);
            color: var(--text-main);
            font-size: 0.95rem;
            border: 1px solid transparent;
            transition: var(--transition-base);
        }

        .comparison-table tr.recommended td {
            border-color: var(--border-accent);
            background: rgba(245,158,11,0.06);
            position: relative;
        }

        .comparison-table tr.recommended td:first-child::before {
            content: 'NỔI BẬT';
            position: absolute;
            top: -10px;
            left: 1rem;
            background: var(--accent);
            color: #0B0C0E;
            font-size: 0.65rem;
            font-weight: 800;
            padding: 0.2rem 0.8rem;
            border-radius: 4px;
        }

        .table-wrap {
            overflow-x: auto;
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: var(--transition-base);
        }

        .testimonial-card:hover {
            border-color: var(--border-accent);
        }

        .testimonial-stars {
            color: var(--accent-glow);
            margin-bottom: 0.8rem;
            font-size: 0.9rem;
        }

        .testimonial-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.2rem;
        }

        .testimonial-author {
            font-weight: 700;
            color: var(--text-main);
            font-size: 0.9rem;
        }

        .testimonial-role {
            font-size: 0.8rem;
            color: var(--text-subtle);
        }

        @media (max-width: 1024px) {
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* CMS List */
        .cms-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
            align-items: start;
        }

        .cms-main-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }

        .cms-item {
            display: flex;
            gap: 1.2rem;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.2rem;
            transition: var(--transition-base);
        }

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

        .cms-item img {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .cms-item-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.3rem;
        }

        .cms-item-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .cms-sidebar {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
        }

        .cms-sidebar h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 1rem;
        }

        .cms-sidebar ul {
            list-style: none;
        }

        .cms-sidebar ul li {
            padding: 0.6rem 0;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .cms-sidebar ul li:last-child {
            border-bottom: none;
        }

        .cms-sidebar ul li a:hover {
            color: var(--accent-glow);
        }

        @media (max-width: 768px) {
            .cms-grid {
                grid-template-columns: 1fr;
            }
            .cms-item {
                flex-direction: column;
            }
            .cms-item img {
                width: 100%;
                height: auto;
            }
        }

        /* Progress / Invite */
        .progress-bar-wrap {
            background: var(--bg-card);
            border-radius: 50px;
            height: 14px;
            overflow: hidden;
            margin: 1rem 0;
            border: 1px solid var(--border-subtle);
        }

        .progress-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, #F59E0B, #FBBF24);
            border-radius: 50px;
            transition: width 0.6s ease;
        }

        .invite-box {
            background: var(--bg-card);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-xl);
            padding: 2rem;
            text-align: center;
        }

        .share-btns {
            display: flex;
            gap: 0.8rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .share-btn {
            font-size: 0.85rem;
            font-weight: 600;
            padding: 0.6rem 1.4rem;
            border-radius: 50px;
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            color: var(--text-muted);
            transition: var(--transition-base);
        }

        .share-btn:hover {
            border-color: var(--accent);
            color: var(--accent-glow);
            background: rgba(245,158,11,0.06);
        }

        /* Expert Team */
        .expert-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .expert-card {
            text-align: center;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem 1.2rem;
            transition: var(--transition-base);
        }

        .expert-card:hover {
            border-color: var(--border-accent);
            transform: translateY(-4px);
        }

        .expert-card img {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 1rem;
            border: 2px solid var(--border-accent);
        }

        .expert-card h4 {
            font-weight: 700;
            color: var(--text-main);
            font-size: 1rem;
        }

        .expert-card .expert-role {
            font-size: 0.8rem;
            color: var(--accent);
            margin: 0.3rem 0;
        }

        @media (max-width: 1024px) {
            .expert-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .expert-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Form */
        .form-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
        }

        .form-group {
            margin-bottom: 1.2rem;
        }

        .form-group label {
            font-weight: 600;
            color: var(--text-main);
            font-size: 0.9rem;
            margin-bottom: 0.4rem;
            display: block;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 0.8rem 1rem;
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            color: var(--text-main);
            font-size: 0.95rem;
            transition: var(--transition-base);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(245,158,11,0.1);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }

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

        .footer-col h4 {
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 1rem;
            font-size: 1rem;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-subtle);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 1.5rem;
            bottom: 5rem;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #D4AF37, #F59E0B);
            border: 2px solid #FBBF24;
            box-shadow: 0 6px 25px rgba(245,158,11,0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #0B0C0E;
            cursor: pointer;
            transition: var(--transition-base);
            animation: floatFab 3s ease-in-out infinite;
        }

        .fab:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(245,158,11,0.5);
        }

        @keyframes floatFab {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

        .notification-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: #DC2626;
            border-radius: 50%;
            border: 2px solid #fff;
        }

        .text-gold {
            color: var(--accent-glow);
        }

/* roulang page: article */
:root {
            --primary: #B45309;
            --primary-light: #D97706;
            --accent: #F59E0B;
            --accent-glow: #FBBF24;
            --bg-base: #0B0C0E;
            --bg-surface: #14161B;
            --bg-card: #1A1C22;
            --text-main: #F5F5F7;
            --text-muted: #CBD5E1;
            --text-subtle: #A8A29E;
            --border-subtle: #2D3039;
            --border-accent: rgba(245,158,11,0.25);
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 20px rgba(245,158,11,0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-heading: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::before, *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button, .button {
            cursor: pointer;
            font-family: var(--font-body);
            transition: var(--transition-base);
            border: none;
            outline: none;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 12, 14, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            transition: var(--transition-base);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--accent-glow);
            letter-spacing: -0.3px;
            white-space: nowrap;
            line-height: 1.2;
            display: inline-block;
        }

        .logo span {
            display: block;
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.6px;
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            position: relative;
            padding: 0.4rem 0;
            letter-spacing: 0.2px;
            transition: var(--transition-base);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition-base);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .btn-login {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            background: transparent;
            border: 1.5px solid var(--border-accent);
            padding: 0.5rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .btn-login:hover {
            background: rgba(245,158,11,0.08);
            border-color: var(--accent);
            color: var(--accent-glow);
        }

        .btn-signup {
            font-weight: 600;
            font-size: 0.9rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #D4AF37 0%, #F59E0B 100%);
            padding: 0.55rem 1.8rem;
            border-radius: 50px;
            box-shadow: 0 4px 18px rgba(212,175,55,0.3);
            transition: var(--transition-base);
        }

        .btn-signup:hover {
            box-shadow: 0 6px 28px rgba(245,158,11,0.5);
            transform: translateY(-2px);
            color: #0B0C0E;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 1.6rem;
            cursor: pointer;
        }

        .page-main {
            padding-top: 85px;
        }

        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            padding: 3.5rem 0 2rem;
            margin-top: 4rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2.5rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }

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

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

        .footer-col a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition-base);
            display: inline-block;
        }

        .footer-col a:hover {
            color: var(--accent-glow);
            transform: translateX(3px);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-subtle);
        }

        .page-title {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-glow);
            line-height: 1.3;
            margin-bottom: 1.2rem;
        }

        .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            font-size: 0.9rem;
            color: var(--text-subtle);
            margin-bottom: 2.5rem;
            padding-bottom: 1.8rem;
            border-bottom: 1px solid var(--border-subtle);
        }

        .meta-info i {
            color: var(--accent);
            margin-right: 0.5rem;
        }

        .hero-image-wrap {
            margin-bottom: 2.5rem;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .pull-quote {
            background: var(--bg-card);
            border-left: 4px solid var(--accent);
            padding: 1.8rem 2rem;
            margin: 2.5rem 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-size: 1.15rem;
            font-style: italic;
            color: var(--text-muted);
            line-height: 1.7;
            box-shadow: var(--shadow-card);
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.7;
            color: var(--text-main);
        }

        .article-body h2 {
            font-family: var(--font-heading);
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--accent-glow);
            margin-top: 2.8rem;
            margin-bottom: 1.2rem;
            letter-spacing: -0.2px;
        }

        .article-body h3 {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--text-main);
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }

        .article-body p {
            margin-bottom: 1.4rem;
            color: var(--text-muted);
        }

        .article-body ul, .article-body ol {
            margin-bottom: 1.5rem;
            padding-left: 1.8rem;
            color: var(--text-muted);
        }

        .article-body li {
            margin-bottom: 0.6rem;
        }

        .article-body a {
            color: var(--accent);
            text-decoration: underline;
        }

        .article-body a:hover {
            color: var(--accent-glow);
        }

        .not-found {
            text-align: center;
            padding: 5rem 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }

        .not-found h2 {
            font-family: var(--font-heading);
            color: var(--accent-glow);
            margin-bottom: 1rem;
        }

        .btn-return {
            display: inline-block;
            margin-top: 1.5rem;
            padding: 0.75rem 2rem;
            background: linear-gradient(135deg, #D4AF37, #F59E0B);
            color: #0B0C0E;
            border-radius: 50px;
            font-weight: 700;
        }

        .article-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            align-items: start;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            box-shadow: var(--shadow-card);
            margin-bottom: 2rem;
            border: 1px solid var(--border-subtle);
        }

        .sidebar-card h3 {
            font-family: var(--font-heading);
            color: var(--accent);
            font-size: 1.1rem;
            margin-bottom: 1rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid var(--border-subtle);
        }

        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-card li {
            margin-bottom: 0.7rem;
            font-size: 0.92rem;
            color: var(--text-muted);
            border-bottom: 1px solid rgba(45,48,57,0.5);
            padding-bottom: 0.7rem;
        }

        .sidebar-card li:last-child {
            border: none;
        }

        .sidebar-card a {
            color: var(--text-muted);
            transition: var(--transition-base);
        }
        .sidebar-card a:hover {
            color: var(--accent);
        }

        .fab-left {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 50;
        }

        .fab-button {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 2px solid var(--accent);
            box-shadow: 0 6px 25px rgba(245,158,11,0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-glow);
            font-size: 1.5rem;
            position: relative;
            transition: var(--transition-base);
            opacity: 0.85;
        }

        .fab-button:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(245,158,11,0.55);
        }

        .fab-button .badge {
            position: absolute;
            top: -1px;
            right: -1px;
            width: 14px;
            height: 14px;
            background: #DC2626;
            border-radius: 50%;
            border: 2px solid var(--bg-base);
        }

        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .page-title {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(11,12,14,0.98);
                backdrop-filter: blur(20px);
                padding: 1.5rem 1.5rem 2rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-subtle);
            }
            .nav-links.open {
                display: flex;
            }
            .header-actions .btn-login,
            .header-actions .btn-signup {
                font-size: 0.8rem;
                padding: 0.4rem 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .page-title {
                font-size: 1.7rem;
            }
            .pull-quote {
                font-size: 1rem;
                padding: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .logo {
                font-size: 1.1rem;
            }
            .page-title {
                font-size: 1.5rem;
            }
        }

/* roulang page: category1 */
/* === Design System (Aligned with Homepage) === */
        :root {
            --primary: #B45309;
            --primary-light: #D97706;
            --accent: #F59E0B;
            --accent-glow: #FBBF24;
            --bg-base: #0B0C0E;
            --bg-surface: #14161B;
            --bg-card: #1A1C22;
            --text-main: #F5F5F7;
            --text-muted: #CBD5E1;
            --text-subtle: #A8A29E;
            --border-subtle: #2D3039;
            --border-accent: rgba(245,158,11,0.25);
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 20px rgba(245,158,11,0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-heading: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

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

        button, .button {
            cursor: pointer;
            font-family: var(--font-body);
            transition: var(--transition-base);
            border: none;
            outline: none;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 12, 14, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            transition: var(--transition-base);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--accent-glow);
            letter-spacing: -0.3px;
            white-space: nowrap;
            line-height: 1.2;
        }

        .logo span {
            display: block;
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            position: relative;
            padding: 0.35rem 0;
            letter-spacing: 0.2px;
            transition: var(--transition-base);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition-base);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .btn-login {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            background: transparent;
            border: 1.5px solid var(--border-accent);
            padding: 0.5rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .btn-login:hover {
            background: rgba(245,158,11,0.08);
            border-color: var(--accent);
            color: var(--accent-glow);
        }

        .btn-signup {
            font-weight: 600;
            font-size: 0.9rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #D4AF37 0%, #F59E0B 100%);
            padding: 0.55rem 1.8rem;
            border-radius: 50px;
            box-shadow: 0 4px 18px rgba(212,175,55,0.3);
            transition: var(--transition-base);
        }

        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(245,158,11,0.5);
            transform: translateY(-2px);
            color: #0B0C0E;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 1.6rem;
            cursor: pointer;
        }

        @media (max-width: 768px) {
            .nav-links {
                gap: 1.2rem;
            }

            .mobile-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(11,12,14,0.98);
                backdrop-filter: blur(20px);
                padding: 1.5rem 1.5rem 2rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-subtle);
            }

            .nav-links.open {
                display: flex;
            }

            .header-actions .btn-login,
            .header-actions .btn-signup {
                display: inline-block;
                font-size: 0.85rem;
                padding: 0.45rem 1.2rem;
            }
        }

        .page-main {
            padding-top: 80px;
        }

        .section {
            padding: 4rem 0;
        }

        .section-sm {
            padding: 2.5rem 0;
        }

        .section-hero-category {
            padding: 5rem 0 3.5rem;
            background: linear-gradient(145deg, var(--bg-base) 0%, #13151C 40%, var(--bg-surface) 100%);
            clip-path: polygon(0 0, 100% 0, 100% 95%, 0% 100%);
            position: relative;
        }

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

        .hero-badge {
            display: inline-block;
            font-weight: 600;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--accent-glow);
            background: rgba(245,158,11,0.08);
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            border: 1px solid var(--border-accent);
            margin-bottom: 1.5rem;
        }

        .hero-title-cat {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.3;
            color: #FFFFFF;
            margin-bottom: 1.2rem;
        }

        .hero-subtitle-cat {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 700px;
            margin-bottom: 2rem;
            line-height: 1.6;
        }

        .btn-primary {
            display: inline-block;
            font-weight: 600;
            font-size: 1rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #D4AF37 0%, #F59E0B 100%);
            padding: 0.75rem 2.2rem;
            border-radius: 50px;
            box-shadow: 0 4px 20px rgba(212,175,55,0.3);
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }

        .btn-primary:hover {
            box-shadow: 0 6px 28px rgba(245,158,11,0.55);
            transform: translateY(-2px);
            color: #0B0C0E;
        }

        .btn-outline {
            display: inline-block;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--accent);
            border: 1.5px solid var(--border-accent);
            padding: 0.7rem 2rem;
            border-radius: 50px;
            background: transparent;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }

        .btn-outline:hover {
            background: rgba(245,158,11,0.07);
            border-color: var(--accent);
            color: var(--accent-glow);
        }

        h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 1.2rem;
            line-height: 1.35;
        }

        h3 {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.75rem;
        }

        .section-label {
            font-weight: 600;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--primary-light);
            margin-bottom: 0.6rem;
        }

        /* Cards */
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: var(--transition-base);
            height: 100%;
        }

        .card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-glow), var(--shadow-card);
        }

        .card-icon {
            width: 54px;
            height: 54px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, rgba(212,175,55,0.15) 0%, rgba(245,158,11,0.08) 100%);
            color: var(--accent-glow);
            border: 1px solid var(--border-accent);
        }

        .card h3 {
            font-size: 1.2rem;
            margin-bottom: 0.6rem;
        }

        .card p {
            color: var(--text-subtle);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .data-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.8rem 1.5rem;
            text-align: left;
            height: 100%;
        }

        .data-card .number {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-glow);
            margin-bottom: 0.3rem;
        }

        .data-card .label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .content-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
            height: 100%;
        }

        .content-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-glow);
        }

        .content-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .content-card .card-body {
            padding: 1.2rem 1.4rem;
        }

        .content-card .card-cat {
            font-size: 0.78rem;
            text-transform: uppercase;
            letter-spacing: 0.7px;
            color: var(--primary-light);
            font-weight: 600;
            margin-bottom: 0.3rem;
            display: inline-block;
        }

        .content-card h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.3rem;
            line-height: 1.4;
        }

        .content-card .card-date {
            font-size: 0.8rem;
            color: var(--text-subtle);
        }

        .faq-item {
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.4rem 1.8rem;
            margin-bottom: 1rem;
            transition: var(--transition-base);
        }

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

        .faq-q {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-main);
            margin-bottom: 0.4rem;
        }

        .faq-a {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .sticky-cta {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-accent);
            padding: 1.2rem 0;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .sticky-cta .cta-text {
            font-weight: 600;
            color: var(--text-main);
            font-size: 1rem;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            padding: 3.5rem 0 1.5rem;
            color: var(--text-muted);
        }

        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col {
            flex: 1 1 200px;
            min-width: 170px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 1rem;
        }

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

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

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

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

        .footer-bottom {
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-subtle);
            border-top: 1px solid var(--border-subtle);
            padding-top: 1.5rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-title-cat {
                font-size: 2.2rem;
            }

            .hero-subtitle-cat {
                font-size: 1rem;
            }

            h2 {
                font-size: 1.65rem;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 2.8rem 0;
            }

            .section-hero-category {
                clip-path: polygon(0 0, 100% 0, 100% 96%, 0% 100%);
                padding: 4rem 0 2.5rem;
            }

            .hero-title-cat {
                font-size: 1.9rem;
            }

            .hero-subtitle-cat {
                font-size: 0.95rem;
            }

            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .footer-grid {
                flex-direction: column;
                gap: 1.5rem;
            }

            .sticky-cta {
                flex-direction: column;
                gap: 1rem;
                text-align: center;
            }
        }

        /* utility */
        .text-center {
            text-align: center;
        }

        .mb-1 {
            margin-bottom: 0.5rem;
        }

        .mb-2 {
            margin-bottom: 1rem;
        }

        .mb-3 {
            margin-bottom: 1.8rem;
        }

        .mt-2 {
            margin-top: 1.2rem;
        }

        .mt-4 {
            margin-top: 2.5rem;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.2rem;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.2rem;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }

        @media (max-width: 768px) {
            .grid-2, .grid-3, .grid-4 {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 1024px) {
            .grid-3, .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .grid-3, .grid-4 {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #B45309;
            --primary-light: #D97706;
            --accent: #F59E0B;
            --accent-glow: #FBBF24;
            --bg-base: #0B0C0E;
            --bg-surface: #14161B;
            --bg-card: #1A1C22;
            --text-main: #F5F5F7;
            --text-muted: #CBD5E1;
            --text-subtle: #A8A29E;
            --border-subtle: #2D3039;
            --border-accent: rgba(245,158,11,0.25);
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 20px rgba(245,158,11,0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-heading: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

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

        button, .button {
            cursor: pointer;
            font-family: var(--font-body);
            transition: var(--transition-base);
            border: none;
            outline: none;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 12, 14, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            transition: var(--transition-base);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }
        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--accent-glow);
            letter-spacing: -0.3px;
            white-space: nowrap;
            line-height: 1.2;
        }
        .logo span {
            display: block;
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
        }
        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            position: relative;
            padding: 0.35rem 0;
            letter-spacing: 0.2px;
            transition: var(--transition-base);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition-base);
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-glow);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .btn-login {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            background: transparent;
            border: 1.5px solid var(--border-accent);
            padding: 0.5rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }
        .btn-login:hover {
            background: rgba(245,158,11,0.08);
            border-color: var(--accent);
            color: var(--accent-glow);
        }
        .btn-signup {
            font-weight: 600;
            font-size: 0.9rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #D4AF37 0%, #F59E0B 100%);
            padding: 0.55rem 1.8rem;
            border-radius: 50px;
            box-shadow: 0 4px 18px rgba(212,175,55,0.3);
            transition: var(--transition-base);
        }
        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(245,158,11,0.5);
            transform: translateY(-2px);
            color: #0B0C0E;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.25rem;
        }

        /* Main Layout */
        .page-main {
            padding-top: 80px;
        }
        .section {
            padding: 4rem 0;
        }
        .section-sm {
            padding: 2.5rem 0;
        }

        /* Hero Section */
        .hero-cat-wrap {
            display: flex;
            align-items: center;
            gap: 3rem;
            background: radial-gradient(circle at 10% 20%, rgba(212, 175, 55, 0.08) 0%, transparent 50%);
            border-bottom: 1px solid var(--border-subtle);
            padding: 3rem 0 4rem;
        }
        .hero-cat-content {
            flex: 1;
        }
        .hero-cat-content h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 1.5rem;
        }
        .hero-cat-content h1 strong {
            color: var(--accent-glow);
        }
        .hero-cat-content .lead {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
            max-width: 550px;
        }
        .hero-cat-img {
            flex: 0.8;
            position: relative;
        }
        .hero-cat-img img {
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card), var(--shadow-glow);
        }
        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #D4AF37, #F59E0B);
            color: #0B0C0E;
            font-weight: 700;
            padding: 0.85rem 2.8rem;
            border-radius: 50px;
            font-size: 1.05rem;
            box-shadow: 0 6px 24px rgba(245,158,11,0.3);
            transition: var(--transition-base);
        }
        .btn-gold:hover {
            box-shadow: 0 8px 32px rgba(245,158,11,0.55);
            transform: translateY(-3px);
            color: #0B0C0E;
        }
        .btn-outline-gold {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border: 1.5px solid var(--accent);
            color: var(--accent-glow);
            font-weight: 600;
            padding: 0.8rem 2.4rem;
            border-radius: 50px;
            font-size: 1rem;
            transition: var(--transition-base);
            margin-left: 1rem;
        }
        .btn-outline-gold:hover {
            background: rgba(245,158,11,0.1);
            border-color: var(--accent-glow);
        }

        /* Section Titles */
        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.75rem;
            text-align: left;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            text-align: left;
        }

        /* Feature Cards */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: var(--transition-base);
        }
        .feature-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .feature-card i {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 1.2rem;
        }
        .feature-card h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* Steps Section */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
            counter-reset: step;
        }
        .step-item {
            position: relative;
            padding-top: 3.5rem;
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: 0;
            left: 0;
            width: 2.8rem;
            height: 2.8rem;
            background: linear-gradient(135deg, #D4AF37, #F59E0B);
            color: #0B0C0E;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            box-shadow: 0 4px 14px rgba(245,158,11,0.35);
        }
        .step-item h4 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .step-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Comparison Table */
        .comp-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .comp-table th {
            background: rgba(212,175,55,0.08);
            font-weight: 700;
            font-size: 1rem;
            padding: 1.2rem 1.5rem;
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--accent-glow);
        }
        .comp-table td {
            padding: 1rem 1.5rem;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .comp-table tr:last-child td {
            border-bottom: none;
        }
        .comp-table .check {
            color: #10B981;
            font-weight: 700;
        }
        .comp-table .cross {
            color: #EF4444;
        }

        /* News / Updates List */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .news-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-glow);
        }
        .news-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .news-card-body {
            padding: 1.2rem;
        }
        .news-card-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .news-card-body h4 a {
            color: var(--text-main);
        }
        .news-card-body h4 a:hover {
            color: var(--accent-glow);
        }
        .news-card-body .meta {
            font-size: 0.8rem;
            color: var(--text-subtle);
        }

        /* News List Row */
        .news-list-row {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .news-list-item {
            display: flex;
            gap: 1.5rem;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1rem;
            transition: var(--transition-base);
            align-items: center;
        }
        .news-list-item:hover {
            border-color: var(--border-accent);
        }
        .news-list-item img {
            width: 120px;
            height: 80px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .news-list-content h4 {
            font-size: 1rem;
            font-weight: 600;
        }
        .news-list-content h4 a {
            color: var(--text-main);
        }
        .news-list-content h4 a:hover {
            color: var(--accent-glow);
        }
        .news-list-content .meta {
            font-size: 0.8rem;
            color: var(--text-subtle);
        }

        /* FAQ */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            color: var(--accent-glow);
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, rgba(212,175,55,0.12) 0%, rgba(11,12,14,0.95) 100%);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-xl);
            padding: 3rem;
            text-align: center;
        }
        .cta-banner h3 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .cta-banner p {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 1rem;
            color: var(--accent-glow);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.6rem;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-subtle);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-cat-wrap {
                flex-direction: column;
                gap: 2rem;
            }
            .hero-cat-content h1 {
                font-size: 2.2rem;
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .site-header .nav-links {
                display: none;
            }
            .site-header .mobile-toggle {
                display: block;
            }
            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(11,12,14,0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                padding: 2rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-subtle);
                z-index: 999;
            }
            .header-actions .btn-login,
            .header-actions .btn-signup {
                display: inline-block;
                font-size: 0.85rem;
                padding: 0.45rem 1.2rem;
            }
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .hero-cat-content h1 {
                font-size: 1.8rem;
            }
            .news-list-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .news-list-item img {
                width: 100%;
                height: 150px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .btn-gold, .btn-outline-gold {
                display: block;
                margin: 0.5rem 0;
                text-align: center;
            }
            .btn-outline-gold {
                margin-left: 0;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #B45309;
            --primary-light: #D97706;
            --accent: #F59E0B;
            --accent-glow: #FBBF24;
            --bg-base: #0B0C0E;
            --bg-surface: #14161B;
            --bg-card: #1A1C22;
            --text-main: #F5F5F7;
            --text-muted: #CBD5E1;
            --text-subtle: #A8A29E;
            --border-subtle: #2D3039;
            --border-accent: rgba(245,158,11,0.25);
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 20px rgba(245,158,11,0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-heading: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

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

        button, .button {
            cursor: pointer;
            font-family: var(--font-body);
            transition: var(--transition-base);
            border: none;
            outline: none;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 12, 14, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            transition: var(--transition-base);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--accent-glow);
            letter-spacing: -0.3px;
            white-space: nowrap;
            line-height: 1.2;
        }

        .logo span {
            display: block;
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            position: relative;
            padding: 0.35rem 0;
            letter-spacing: 0.2px;
            transition: var(--transition-base);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition-base);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .btn-login {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            background: transparent;
            border: 1.5px solid var(--border-accent);
            padding: 0.5rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .btn-login:hover {
            background: rgba(245,158,11,0.08);
            border-color: var(--accent);
            color: var(--accent-glow);
        }

        .btn-signup {
            font-weight: 600;
            font-size: 0.9rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #D4AF37 0%, #F59E0B 100%);
            padding: 0.55rem 1.8rem;
            border-radius: 50px;
            box-shadow: 0 4px 18px rgba(212,175,55,0.3);
            transition: var(--transition-base);
        }

        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(245,158,11,0.5);
            transform: translateY(-2px);
            color: #0B0C0E;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 1.6rem;
            cursor: pointer;
        }

        .page-main {
            padding-top: 80px;
        }

        .section {
            padding: 4rem 0;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 720px;
        }

        /* Hero */
        .hero-section {
            padding: 5rem 0 4rem;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(11,12,14,0.92) 0%, rgba(20,22,27,0.82) 100%);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .hero-inner h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent-glow);
            line-height: 1.25;
            margin-bottom: 1rem;
            letter-spacing: -0.5px;
        }

        .hero-inner p {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        .hero-progress {
            display: flex;
            align-items: center;
            gap: 2rem;
            flex-wrap: wrap;
            margin-top: 2rem;
        }

        .progress-circle-wrap {
            flex-shrink: 0;
        }

        .progress-circle {
            width: 110px;
            height: 110px;
            border-radius: 50%;
            background: conic-gradient(var(--accent) 0% 68%, var(--border-subtle) 68% 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .progress-circle-inner {
            width: 88px;
            height: 88px;
            border-radius: 50%;
            background: var(--bg-base);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
        }

        .progress-circle-inner span {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-glow);
            line-height: 1;
        }

        .progress-circle-inner small {
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        .hero-stats {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: left;
        }

        .stat-number {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .btn-hero {
            display: inline-block;
            font-weight: 600;
            font-size: 1rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #D4AF37 0%, #F59E0B 100%);
            padding: 0.75rem 2.2rem;
            border-radius: 50px;
            box-shadow: 0 4px 20px rgba(212,175,55,0.35);
            transition: var(--transition-base);
            margin-top: 1.5rem;
        }

        .btn-hero:hover {
            box-shadow: 0 8px 28px rgba(245,158,11,0.55);
            transform: translateY(-2px);
            color: #0B0C0E;
        }

        /* Tier Preview Cards */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .tier-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: var(--transition-base);
        }

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

        .tier-card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
        }

        .tier-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .tier-card .tier-badge {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            color: var(--accent-glow);
            background: rgba(245,158,11,0.1);
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            margin-bottom: 0.75rem;
            letter-spacing: 1px;
        }

        /* Tips Section */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .tip-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .tip-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
        }

        .tip-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-glow);
        }

        .tip-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }

        .tip-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
        }

        .tip-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Content List */
        .content-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .content-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .content-card-img {
            height: 180px;
            overflow: hidden;
        }

        .content-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .content-card-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .content-card-body h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .content-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 1rem;
            flex: 1;
        }

        .content-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.75rem;
            color: var(--text-subtle);
        }

        .btn-link {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: var(--transition-base);
        }

        .btn-link:hover {
            color: var(--accent-glow);
            gap: 0.6rem;
        }

        /* Scenario Section */
        .scenario-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            margin-top: 2rem;
        }

        .scenario-text h2 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 1rem;
        }

        .scenario-text p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .scenario-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        /* Comparison Table */
        .compare-wrapper {
            overflow-x: auto;
            margin-top: 2rem;
        }

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

        .compare-table th {
            background: var(--bg-card);
            color: var(--accent-glow);
            font-weight: 700;
            padding: 1rem;
            border-bottom: 2px solid var(--border-accent);
            text-align: left;
            font-size: 0.95rem;
        }

        .compare-table td {
            padding: 1rem;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .compare-table tr:hover td {
            background: rgba(245,158,11,0.03);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 2rem 0 0;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-subtle);
            padding: 1.25rem 0;
        }

        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition-base);
        }

        .faq-question:hover {
            color: var(--accent-glow);
        }

        .faq-answer {
            margin-top: 0.75rem;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .faq-question {
            color: var(--accent-glow);
        }

        /* CTA Bar */
        .cta-sticky {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: rgba(11,12,14,0.92);
            backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-accent);
            padding: 1rem 0;
            z-index: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .cta-sticky p {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            margin: 0;
        }

        .btn-cta {
            font-weight: 700;
            font-size: 0.95rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #D4AF37 0%, #F59E0B 100%);
            padding: 0.65rem 2rem;
            border-radius: 50px;
            box-shadow: 0 4px 18px rgba(212,175,55,0.35);
            transition: var(--transition-base);
        }

        .btn-cta:hover {
            box-shadow: 0 6px 24px rgba(245,158,11,0.55);
            transform: translateY(-2px);
            color: #0B0C0E;
        }

        /* Trust Bar */
        .trust-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
            padding: 2rem;
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            margin-top: 2rem;
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .trust-item i {
            color: var(--accent);
            font-size: 1.2rem;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-glow);
            margin-bottom: 1rem;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-subtle);
        }

        .footer-bottom p {
            font-size: 0.8rem;
            color: var(--text-subtle);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 1.2rem;
            }
            .hero-inner h1 {
                font-size: 2.2rem;
            }
            .scenario-row {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(11,12,14,0.98);
                backdrop-filter: blur(20px);
                padding: 1.5rem 1.5rem 2rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-subtle);
            }
            .nav-links.open {
                display: flex;
            }
            .header-actions .btn-login,
            .header-actions .btn-signup {
                display: inline-block;
                font-size: 0.85rem;
                padding: 0.45rem 1.2rem;
            }
            .hero-inner h1 {
                font-size: 1.9rem;
            }
            .hero-progress {
                flex-direction: column;
                align-items: flex-start;
            }
            .tier-grid {
                grid-template-columns: 1fr 1fr;
            }
            .content-list {
                grid-template-columns: 1fr;
            }
            .cta-sticky {
                flex-direction: column;
                text-align: center;
                gap: 0.75rem;
            }
            .section {
                padding: 2.5rem 0;
            }
        }

        @media (max-width: 520px) {
            .tier-grid {
                grid-template-columns: 1fr;
            }
            .trust-bar {
                flex-direction: column;
                gap: 1rem;
            }
            .compare-table th,
            .compare-table td {
                font-size: 0.8rem;
                padding: 0.65rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #B45309;
            --primary-light: #D97706;
            --accent: #F59E0B;
            --accent-glow: #FBBF24;
            --bg-base: #0B0C0E;
            --bg-surface: #14161B;
            --bg-card: #1A1C22;
            --text-main: #F5F5F7;
            --text-muted: #CBD5E1;
            --text-subtle: #A8A29E;
            --border-subtle: #2D3039;
            --border-accent: rgba(245,158,11,0.25);
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 20px rgba(245,158,11,0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-heading: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::before, *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

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

        button, .button {
            cursor: pointer;
            font-family: var(--font-body);
            transition: var(--transition-base);
            border: none;
            outline: none;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 12, 14, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.75rem 0;
            transition: var(--transition-base);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--accent-glow);
            letter-spacing: -0.3px;
            white-space: nowrap;
            line-height: 1.2;
        }

        .logo span {
            display: block;
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            position: relative;
            padding: 0.35rem 0;
            letter-spacing: 0.2px;
            transition: var(--transition-base);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition-base);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .btn-login {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            background: transparent;
            border: 1.5px solid var(--border-accent);
            padding: 0.5rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-login:hover {
            background: rgba(245,158,11,0.08);
            border-color: var(--accent);
            color: var(--accent-glow);
        }

        .btn-signup {
            font-weight: 600;
            font-size: 0.9rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #D4AF37 0%, #F59E0B 100%);
            padding: 0.55rem 1.8rem;
            border-radius: 50px;
            box-shadow: 0 4px 18px rgba(212,175,55,0.3);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(245,158,11,0.5);
            transform: translateY(-2px);
            color: #0B0C0E;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 1.6rem;
            cursor: pointer;
        }

        .page-main {
            padding-top: 80px;
        }

        .section {
            padding: 4rem 0;
        }

        .section-sm {
            padding: 2.5rem 0;
        }

        /* Hero */
        .category-hero {
            background-image: linear-gradient(rgba(11,12,14,0.75), rgba(11,12,14,0.9)), url('/assets/images/backpic/back-6.jpg');
            background-size: cover;
            background-position: center;
            padding: 5rem 0 4rem;
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
        }

        .category-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent-glow);
            margin-bottom: 1rem;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .category-hero .subtitle {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 750px;
            line-height: 1.65;
        }

        /* Stats row */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin: 2rem 0 1rem;
        }

        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            border: 1px solid var(--border-subtle);
            text-align: center;
            transition: var(--transition-base);
        }

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

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent-glow);
            display: block;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }

        /* Comparison Table */
        .comparison-table-wrap {
            overflow-x: auto;
            margin: 2rem 0;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            padding: 0.5rem;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 650px;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 1rem 1.2rem;
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.95rem;
        }

        .comparison-table th {
            font-weight: 700;
            color: var(--accent-glow);
            font-size: 1rem;
            background: rgba(245,158,11,0.05);
        }

        .comparison-table .check {
            color: #10B981;
            font-weight: 700;
        }

        .comparison-table .warn {
            color: var(--accent);
            font-weight: 600;
        }

        .comparison-table .cross {
            color: #EF4444;
        }

        .portal-badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(245,158,11,0.15);
            color: var(--accent-glow);
            border: 1px solid var(--border-accent);
        }

        /* Review Cards */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
            margin: 2rem 0;
        }

        .review-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .review-card-img {
            height: 200px;
            overflow: hidden;
        }

        .review-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .review-card-body {
            padding: 1.75rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .review-card-body h3 {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--accent-glow);
            margin-bottom: 0.75rem;
        }

        .review-card-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.65;
            margin-bottom: 1.25rem;
            flex: 1;
        }

        .review-meta {
            display: flex;
            gap: 1.2rem;
            font-size: 0.85rem;
            color: var(--text-subtle);
            margin-bottom: 1rem;
        }

        .review-meta i {
            color: var(--accent);
            margin-right: 0.35rem;
        }

        .rating-stars {
            color: var(--accent-glow);
            font-size: 1rem;
            letter-spacing: 2px;
        }

        .btn-outline-accent {
            display: inline-block;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            background: transparent;
            border: 1.5px solid var(--border-accent);
            padding: 0.6rem 1.8rem;
            border-radius: 50px;
            transition: var(--transition-base);
            text-align: center;
        }

        .btn-outline-accent:hover {
            background: rgba(245,158,11,0.08);
            border-color: var(--accent);
            color: var(--accent-glow);
            transform: translateY(-2px);
        }

        /* Criteria List */
        .criteria-list {
            list-style: none;
            padding: 0;
            margin: 1.5rem 0;
        }

        .criteria-list li {
            padding: 0.9rem 0;
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            font-size: 1rem;
            color: var(--text-main);
        }

        .criteria-list li i {
            color: var(--accent-glow);
            font-size: 1.2rem;
            margin-top: 0.15rem;
        }

        /* FAQ */
        .faq-list {
            margin: 2rem 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.75rem;
            transition: var(--transition-base);
        }

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

        .faq-item h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--accent-glow);
            margin-bottom: 0.6rem;
        }

        .faq-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.65;
            margin: 0;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(180deg, var(--bg-surface) 0%, rgba(20,22,27,0.6) 100%);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            padding: 4rem 0;
        }

        .cta-box {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-accent);
            padding: 3rem;
            text-align: center;
            box-shadow: var(--shadow-glow);
        }

        .cta-box h2 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent-glow);
            margin-bottom: 1rem;
        }

        .cta-box p {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        .btn-primary-large {
            display: inline-block;
            font-weight: 700;
            font-size: 1.1rem;
            color: #0B0C0E;
            background: linear-gradient(135deg, #D4AF37 0%, #F59E0B 100%);
            padding: 1rem 2.5rem;
            border-radius: 50px;
            box-shadow: 0 6px 28px rgba(212,175,55,0.35);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-primary-large:hover {
            box-shadow: 0 8px 36px rgba(245,158,11,0.6);
            transform: translateY(-3px);
            color: #0B0C0E;
        }

        /* News List */
        .news-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin: 2rem 0;
        }

        .news-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            padding: 1.5rem;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .news-item:hover {
            border-color: var(--border-accent);
            box-shadow: 0 4px 16px rgba(0,0,0,0.3);
            transform: translateY(-2px);
        }

        .news-item-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: var(--accent);
            margin-bottom: 0.5rem;
        }

        .news-item h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
            line-height: 1.4;
            flex: 1;
        }

        .news-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
            line-height: 1.5;
        }

        .news-item-date {
            font-size: 0.8rem;
            color: var(--text-subtle);
            margin-top: auto;
        }

        .news-item a {
            color: inherit;
        }

        .news-item a:hover h4 {
            color: var(--accent-glow);
        }

        .more-link {
            display: inline-block;
            font-weight: 600;
            color: var(--accent);
            font-size: 0.95rem;
            margin-top: 0.5rem;
            transition: var(--transition-base);
        }

        .more-link:hover {
            color: var(--accent-glow);
            padding-left: 4px;
        }

        .more-link i {
            margin-left: 4px;
            font-size: 0.8rem;
        }

        /* Section Title */
        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-glow);
            margin-bottom: 0.75rem;
            text-align: left;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            text-align: left;
            line-height: 1.6;
        }

        .text-center {
            text-align: center;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            padding: 3.5rem 0 1.5rem;
            margin-top: 1rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2.5rem;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-glow);
            margin-bottom: 1rem;
        }

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

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

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-subtle);
        }

        .footer-bottom p {
            color: var(--text-subtle);
            font-size: 0.85rem;
            margin: 0;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 1.2rem;
            }

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

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

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

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

            .category-hero h1 {
                font-size: 2.2rem;
            }

            .cta-box h2 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(11,12,14,0.98);
                backdrop-filter: blur(20px);
                padding: 1.5rem 1.5rem 2rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-subtle);
            }

            .nav-links.open {
                display: flex;
            }

            .header-actions .btn-login,
            .header-actions .btn-signup {
                display: inline-block;
                font-size: 0.85rem;
                padding: 0.45rem 1.2rem;
            }

            .stats-row {
                grid-template-columns: 1fr;
            }

            .category-hero h1 {
                font-size: 1.8rem;
            }

            .news-list-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .cta-box {
                padding: 2rem 1.5rem;
            }

            .cta-box h2 {
                font-size: 1.5rem;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .section {
                padding: 2.5rem 0;
            }
        }

        @media (max-width: 520px) {
            .category-hero {
                padding: 3.5rem 0 2.5rem;
            }

            .category-hero h1 {
                font-size: 1.5rem;
            }

            .category-hero .subtitle {
                font-size: 1rem;
            }

            .btn-primary-large {
                font-size: 0.95rem;
                padding: 0.8rem 1.8rem;
            }

            .comparison-table th,
            .comparison-table td {
                padding: 0.7rem 0.8rem;
                font-size: 0.85rem;
            }
        }