/* roulang page: index */
:root {
            --gold-primary: #C5A059;
            --gold-dark: #8B6914;
            --gold-light: #FFBF00;
            --bg-obsidian: #121212;
            --bg-charcoal: #1C1C1E;
            --bg-card: #1E1E1E;
            --text-warm-white: #F5F5F7;
            --text-gold-muted: #D4AC0D;
            --text-muted: #B0B0B0;
            --border-subtle: #2C2C2E;
            --border-gold: #C5A059;
            --shadow-elegant: 0 10px 30px rgba(0,0,0,0.5);
            --shadow-card-hover: 0 15px 40px rgba(0,0,0,0.6), 0 0 20px rgba(197,160,89,0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --font-head: 'Georgia', 'Times New Roman', serif;
            --font-body: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-obsidian);
            color: var(--text-warm-white);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        h1, h2, h3, h4 {
            font-family: var(--font-head);
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--text-warm-white);
            line-height: 1.25;
        }

        h1 {
            font-size: 2.6rem;
            margin-bottom: 1.5rem;
        }
        h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
            color: var(--text-gold-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        h3 {
            font-size: 1.5rem;
            margin-bottom: 0.75rem;
        }
        p {
            margin-bottom: 1.25rem;
            color: var(--text-muted);
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .gradient-gold-text {
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Navigation */
        .main-header {
            position: sticky;
            top: 0;
            width: 100%;
            background-color: rgba(18,18,18,0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(197,160,89,0.25);
            z-index: 100;
            padding: 0.85rem 0;
            transition: background-color 0.3s ease;
            box-shadow: 0 2px 15px rgba(0,0,0,0.4);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            font-family: var(--font-head);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-warm-white);
            letter-spacing: 1px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }
        .logo i {
            color: var(--gold-primary);
            font-size: 1.8rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            list-style: none;
            margin: 0;
        }
        .nav-menu a {
            display: block;
            padding: 0.65rem 1.2rem;
            color: var(--text-muted);
            text-decoration: none;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
            letter-spacing: 0.3px;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--gold-primary);
            background-color: rgba(197,160,89,0.08);
            border-color: rgba(197,160,89,0.25);
        }
        .nav-cta-group {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .btn-login {
            color: var(--text-muted);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            transition: color 0.2s;
            white-space: nowrap;
        }
        .btn-login:hover {
            color: var(--gold-primary);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            font-weight: 700;
            padding: 0.6rem 1.8rem;
            border-radius: 30px;
            text-decoration: none;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 12px rgba(197,160,89,0.3);
            border: 1px solid var(--gold-primary);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(197,160,89,0.45);
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            color: #000;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-warm-white);
            font-size: 1.6rem;
            cursor: pointer;
        }

        /* Hero - Brand Flagship Store */
        .hero-flagship {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
            border-bottom: 2px solid var(--border-gold);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(18,18,18,0.75) 0%, rgba(18,18,18,0.92) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: left;
            max-width: 800px;
            margin: 0 auto;
            padding: 2rem 1.5rem;
            width: 100%;
        }
        .hero-series-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-bottom: 2.5rem;
            justify-content: flex-start;
        }
        .hero-series-nav a {
            background: rgba(255,255,255,0.05);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(197,160,89,0.4);
            color: var(--text-warm-white);
            padding: 0.6rem 1.4rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            transition: var(--transition-smooth);
            letter-spacing: 0.4px;
        }
        .hero-series-nav a:hover {
            background: var(--gold-primary);
            color: #000;
            border-color: var(--gold-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(197,160,89,0.3);
        }
        .hero-content h1 {
            font-size: 3rem;
            margin-bottom: 1.4rem;
            line-height: 1.2;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 2.2rem;
            max-width: 650px;
            line-height: 1.7;
        }
        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .btn-primary-gold {
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            color: #000;
            font-weight: 700;
            padding: 0.8rem 2.2rem;
            border-radius: 30px;
            text-decoration: none;
            font-size: 1.05rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 15px rgba(197,160,89,0.4);
            display: inline-block;
            text-align: center;
        }
        .btn-primary-gold:hover {
            background: #FFF;
            color: #000;
            box-shadow: 0 10px 25px rgba(197,160,89,0.55);
            transform: translateY(-3px);
        }
        .btn-outline-gold {
            background: transparent;
            border: 1.5px solid var(--gold-primary);
            color: var(--gold-primary);
            font-weight: 600;
            padding: 0.8rem 2rem;
            border-radius: 30px;
            text-decoration: none;
            transition: var(--transition-smooth);
        }
        .btn-outline-gold:hover {
            background: var(--gold-primary);
            color: #000;
        }
        .hero-stat-badges {
            display: flex;
            gap: 2rem;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }
        .hero-stat-badges .stat-item {
            text-align: left;
            border-left: 2px solid var(--gold-primary);
            padding-left: 1rem;
        }
        .stat-number {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--gold-light);
            font-family: var(--font-head);
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }

        /* Section General */
        section {
            padding: 4.5rem 0;
        }
        .section-header {
            margin-bottom: 3rem;
        }
        .section-header h2 {
            font-size: 2.2rem;
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 1.1rem;
            margin-top: 0.5rem;
        }

        /* Promo Tier Ladder */
        .promo-tier-grid {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .tier-card {
            background: var(--bg-charcoal);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .tier-card.recommended {
            border-color: var(--gold-primary);
            box-shadow: 0 0 20px rgba(197,160,89,0.1);
        }
        .tier-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--gold-primary);
            color: #000;
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.5px;
        }
        .tier-icon {
            font-size: 2.8rem;
            color: var(--gold-primary);
            min-width: 80px;
            text-align: center;
        }
        .tier-info {
            flex: 2;
            min-width: 250px;
        }
        .tier-info h3 {
            font-size: 1.6rem;
            margin-bottom: 0.5rem;
        }
        .tier-action {
            flex: 1;
            text-align: right;
            min-width: 150px;
        }

        /* Comparison Table */
        .comparison-table-wrap {
            overflow-x: auto;
            background: var(--bg-charcoal);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            border: 1px solid var(--border-subtle);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            color: var(--text-warm-white);
        }
        .comparison-table th,
        .comparison-table td {
            padding: 1rem 1.5rem;
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.95rem;
        }
        .comparison-table th {
            color: var(--gold-primary);
            font-weight: 700;
            font-size: 1rem;
            text-transform: uppercase;
        }
        .highlight-col {
            background: rgba(197,160,89,0.05);
        }

        /* Guarantee Bar */
        .guarantee-bar {
            background: linear-gradient(90deg, rgba(197,160,89,0.1) 0%, rgba(18,18,18,0.95) 100%);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
            padding: 2rem 0;
        }
        .guarantee-icons {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 1.5rem;
            text-align: center;
        }
        .guarantee-icon-item i {
            font-size: 2rem;
            color: var(--gold-primary);
            margin-bottom: 0.5rem;
        }
        .guarantee-icon-item p {
            font-weight: 600;
            color: var(--text-warm-white);
            font-size: 0.95rem;
        }

        /* News List */
        .news-list-layout {
            display: flex;
            gap: 2.5rem;
            flex-wrap: wrap;
        }
        .news-main-list {
            flex: 2;
            min-width: 280px;
        }
        .news-item {
            border-bottom: 1px solid var(--border-subtle);
            padding: 1.2rem 0;
            display: flex;
            gap: 1rem;
            align-items: flex-start;
        }
        .news-date {
            color: var(--gold-primary);
            font-weight: 600;
            min-width: 70px;
            font-size: 0.9rem;
        }
        .news-item h4 {
            font-size: 1.1rem;
            margin-bottom: 0.3rem;
        }
        .news-item h4 a {
            color: var(--text-warm-white);
            text-decoration: none;
            transition: color 0.2s;
        }
        .news-item h4 a:hover {
            color: var(--gold-primary);
        }
        .news-excerpt {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .news-sidebar {
            flex: 1;
            min-width: 220px;
            background: var(--bg-charcoal);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            border: 1px solid var(--border-subtle);
        }

        /* Limited Entry */
        .limited-entry-block {
            background: var(--bg-charcoal);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            text-align: center;
            border: 1px solid var(--gold-primary);
            position: relative;
        }
        .countdown-timer {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        .timer-digit {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--gold-light);
            background: rgba(0,0,0,0.3);
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            min-width: 70px;
        }

        /* Footer */
        .main-footer {
            background-color: #0A0A0A;
            border-top: 2px solid var(--border-gold);
            padding: 3rem 0 2rem;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            color: var(--gold-primary);
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            text-decoration: none;
            margin-bottom: 0.5rem;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: var(--gold-primary);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-subtle);
        }

        /* FAB Left Bottom */
        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 5rem;
            z-index: 90;
        }
        .fab-chip {
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 30% 30%, #1C1C1E, #0B0B0B);
            border: 2px solid var(--gold-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(197,160,89,0.35);
            transition: var(--transition-smooth);
            opacity: 0.85;
            animation: floatVertical 3s infinite ease-in-out;
            position: relative;
        }
        .fab-chip:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 8px 30px rgba(197,160,89,0.55);
        }
        .fab-chip i {
            font-size: 1.6rem;
            color: var(--gold-light);
        }
        .fab-notif-dot {
            position: absolute;
            top: 5px;
            right: 5px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0B0B0B;
            animation: pulse 1.5s infinite;
        }

        @keyframes floatVertical {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes pulse {
            0% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.9); }
            100% { opacity: 1; transform: scale(1); }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            h1 { font-size: 2.2rem; }
            .hero-flagship { min-height: 70vh; }
            .hero-content h1 { font-size: 2.4rem; }
            .nav-menu { gap: 0.2rem; }
            .nav-menu a { padding: 0.5rem 0.8rem; font-size: 0.85rem; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .nav-menu, .nav-cta-group .btn-login {
                display: none;
            }
            .nav-menu.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(18,18,18,0.98);
                backdrop-filter: blur(12px);
                padding: 1.5rem;
                border-bottom: 2px solid var(--border-gold);
                gap: 0.5rem;
            }
            .hero-content h1 { font-size: 2rem; }
            .hero-series-nav { justify-content: center; }
            .tier-card { flex-direction: column; text-align: left; }
            .tier-action { text-align: left; width: 100%; }
            .news-list-layout { flex-direction: column; }
            .comparison-table th, .comparison-table td { padding: 0.6rem; font-size: 0.8rem; }
        }
        @media (max-width: 520px) {
            .hero-content h1 { font-size: 1.8rem; }
            .hero-stat-badges { flex-direction: column; gap: 1rem; }
        }

/* roulang page: article */
:root {
            --gold-primary: #C5A059;
            --gold-dark: #8B6914;
            --gold-light: #FFBF00;
            --bg-obsidian: #121212;
            --bg-charcoal: #1C1C1E;
            --bg-card: #1E1E1E;
            --text-warm-white: #F5F5F7;
            --text-gold-muted: #D4AC0D;
            --text-muted: #B0B0B0;
            --border-subtle: #2C2C2E;
            --border-gold: #C5A059;
            --shadow-elegant: 0 10px 30px rgba(0,0,0,0.5);
            --shadow-card-hover: 0 15px 40px rgba(0,0,0,0.6), 0 0 20px rgba(197,160,89,0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --font-head: 'Georgia', 'Times New Roman', serif;
            --font-body: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        
        body {
            font-family: var(--font-body);
            background-color: var(--bg-obsidian);
            color: var(--text-warm-white);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-fast);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        /* Header & Navigation */
        .main-header {
            position: sticky;
            top: 0;
            width: 100%;
            background-color: rgba(18,18,18,0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(197,160,89,0.25);
            z-index: 100;
            padding: 0.85rem 0;
            transition: background-color 0.3s ease;
            box-shadow: 0 2px 15px rgba(0,0,0,0.4);
        }
        
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .logo {
            font-family: var(--font-head);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-warm-white);
            letter-spacing: 1px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }
        
        .logo i {
            color: var(--gold-primary);
            font-size: 1.8rem;
        }
        
        .logo span {
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            list-style: none;
            margin: 0;
        }
        
        .nav-menu a {
            display: block;
            padding: 0.65rem 1.2rem;
            color: var(--text-muted);
            text-decoration: none;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
            letter-spacing: 0.3px;
        }
        
        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--gold-primary);
            background-color: rgba(197,160,89,0.08);
            border-color: rgba(197,160,89,0.25);
        }
        
        .nav-cta-group {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        
        .btn-login {
            color: var(--text-muted);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            transition: color 0.2s;
            white-space: nowrap;
        }
        
        .btn-login:hover {
            color: var(--gold-primary);
        }
        
        .btn-signup {
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            font-weight: 700;
            padding: 0.6rem 1.8rem;
            border-radius: 30px;
            text-decoration: none;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 12px rgba(197,160,89,0.3);
            border: 1px solid var(--gold-primary);
            white-space: nowrap;
        }
        
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(197,160,89,0.45);
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            color: #000;
        }
        
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-warm-white);
            font-size: 1.6rem;
            cursor: pointer;
        }
        
        /* Article Hero Banner */
        .article-hero {
            position: relative;
            min-height: 45vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-bottom: 2px solid var(--border-gold);
        }
        
        .article-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(18,18,18,0.75) 0%, rgba(18,18,18,0.95) 100%);
            z-index: 1;
        }
        
        .article-hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
            padding: 4rem 1.5rem;
            width: 100%;
        }
        
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
            font-size: 0.9rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        
        .breadcrumb a {
            color: var(--gold-primary);
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .breadcrumb a:hover {
            color: var(--gold-light);
        }
        
        .breadcrumb span {
            color: var(--text-muted);
        }
        
        .article-category-tag {
            display: inline-block;
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            font-weight: 700;
            padding: 0.4rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 1rem;
        }
        
        .article-hero-content h1 {
            font-family: var(--font-head);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--text-warm-white);
            line-height: 1.25;
            margin: 0.5rem 0 1rem;
            letter-spacing: -0.5px;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 1.5rem;
        }
        
        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        
        .article-meta-item i {
            color: var(--gold-primary);
        }
        
        /* Article Body */
        .article-main-section {
            background-color: var(--bg-obsidian);
            padding: 4rem 0;
        }
        
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 3rem;
            align-items: start;
        }
        
        .article-body {
            background-color: var(--bg-charcoal);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-elegant);
        }
        
        .article-body h2 {
            font-family: var(--font-head);
            color: var(--gold-primary);
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            font-weight: 700;
            line-height: 1.3;
            border-left: 4px solid var(--gold-primary);
            padding-left: 1rem;
        }
        
        .article-body h2:first-of-type {
            margin-top: 0;
        }
        
        .article-body h3 {
            font-family: var(--font-head);
            color: var(--text-warm-white);
            font-size: 1.3rem;
            margin: 1.8rem 0 0.8rem;
            font-weight: 600;
        }
        
        .article-body p {
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.2rem;
            font-size: 1rem;
        }
        
        .article-body ul,
        .article-body ol {
            margin: 1rem 0 1.5rem 1.5rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        
        .article-body li {
            margin-bottom: 0.6rem;
        }
        
        .article-body strong {
            color: var(--text-warm-white);
            font-weight: 600;
        }
        
        .article-body blockquote {
            background: linear-gradient(135deg, rgba(197,160,89,0.05), rgba(139,105,20,0.05));
            border-left: 3px solid var(--gold-primary);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-gold-muted);
            font-style: italic;
        }
        
        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-elegant);
        }
        
        .article-not-found {
            text-align: center;
            padding: 4rem 2rem;
            background-color: var(--bg-charcoal);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
        }
        
        .article-not-found i {
            font-size: 4rem;
            color: var(--gold-primary);
            margin-bottom: 1.5rem;
            display: block;
        }
        
        .article-not-found h3 {
            font-family: var(--font-head);
            color: var(--text-warm-white);
            font-size: 1.8rem;
            margin-bottom: 1rem;
        }
        
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 2rem;
            font-size: 1.05rem;
        }
        
        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 7rem;
        }
        
        .sidebar-card {
            background-color: var(--bg-charcoal);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow-elegant);
        }
        
        .sidebar-card h4 {
            font-family: var(--font-head);
            color: var(--gold-primary);
            font-size: 1.2rem;
            margin-bottom: 1rem;
            font-weight: 600;
            border-bottom: 1px solid rgba(197,160,89,0.2);
            padding-bottom: 0.5rem;
        }
        
        .sidebar-card ul {
            list-style: none;
            margin: 0;
        }
        
        .sidebar-card li {
            margin-bottom: 0.8rem;
        }
        
        .sidebar-card a {
            color: var(--text-muted);
            transition: color 0.2s;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .sidebar-card a:hover {
            color: var(--gold-primary);
        }
        
        .sidebar-card a i {
            color: var(--gold-primary);
            font-size: 0.7rem;
        }
        
        .sidebar-cta {
            background: linear-gradient(135deg, rgba(197,160,89,0.1), rgba(139,105,20,0.1));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-elegant);
        }
        
        .sidebar-cta h4 {
            font-family: var(--font-head);
            color: var(--gold-primary);
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
            font-weight: 700;
        }
        
        .sidebar-cta p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 1.2rem;
        }
        
        .sidebar-cta .btn-signup {
            display: inline-block;
            width: 100%;
            text-align: center;
            padding: 0.8rem 1.5rem;
            font-size: 1rem;
        }
        
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-charcoal), var(--bg-obsidian));
            border-top: 2px solid var(--border-gold);
            padding: 4rem 0;
            text-align: center;
        }
        
        .cta-section h3 {
            font-family: var(--font-head);
            color: var(--gold-primary);
            font-size: 2rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }
        
        .cta-section p {
            color: var(--text-muted);
            font-size: 1.1rem;
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            font-weight: 700;
            padding: 0.9rem 2.5rem;
            border-radius: 30px;
            text-decoration: none;
            font-size: 1.05rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 15px rgba(197,160,89,0.3);
            border: 1px solid var(--gold-primary);
            display: inline-block;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(197,160,89,0.5);
            color: #000;
        }
        
        .btn-outline {
            background: transparent;
            color: var(--gold-primary);
            font-weight: 700;
            padding: 0.9rem 2.5rem;
            border-radius: 30px;
            text-decoration: none;
            font-size: 1.05rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            border: 1px solid var(--gold-primary);
            display: inline-block;
        }
        
        .btn-outline:hover {
            background-color: rgba(197,160,89,0.1);
            transform: translateY(-2px);
        }
        
        /* Footer */
        .main-footer {
            background-color: var(--bg-charcoal);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 1.5rem;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-col h4 {
            font-family: var(--font-head);
            color: var(--gold-primary);
            font-size: 1.15rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }
        
        .footer-col p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.5;
        }
        
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            transition: color 0.2s;
        }
        
        .footer-col a:hover {
            color: var(--gold-primary);
        }
        
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 1.5rem;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        
        /* FAB */
        .fab-support {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--bg-charcoal), var(--bg-card));
            border: 2px solid var(--gold-primary);
            color: var(--gold-primary);
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 20px rgba(197,160,89,0.3);
            text-decoration: none;
            opacity: 0.7;
            animation: floatFAB 3s ease-in-out infinite;
        }
        
        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(197,160,89,0.5);
            border-color: var(--gold-light);
            color: var(--gold-light);
        }
        
        .fab-support:active {
            transform: scale(0.95);
        }
        
        @keyframes floatFAB {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            
            .article-sidebar {
                position: static;
            }
            
            .article-hero-content h1 {
                font-size: 2.2rem;
            }
        }
        
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: rgba(18,18,18,0.95);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 1rem;
                border-top: 1px solid var(--border-gold);
                gap: 0.3rem;
            }
            
            .nav-menu.active {
                display: flex;
            }
            
            .nav-menu a {
                width: 100%;
                text-align: center;
                padding: 0.8rem;
                font-size: 1rem;
            }
            
            .nav-cta-group {
                gap: 0.5rem;
            }
            
            .btn-signup {
                padding: 0.5rem 1.2rem;
                font-size: 0.85rem;
            }
            
            .btn-login {
                font-size: 0.85rem;
                padding: 0.5rem 0.8rem;
            }
            
            .logo span {
                font-size: 1.2rem;
            }
            
            .article-hero {
                min-height: 35vh;
            }
            
            .article-hero-content h1 {
                font-size: 1.8rem;
            }
            
            .article-body {
                padding: 1.5rem;
            }
            
            .article-body h2 {
                font-size: 1.4rem;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
            }
            
            .cta-section h3 {
                font-size: 1.6rem;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
            
            .logo {
                font-size: 1.1rem;
            }
            
            .logo i {
                font-size: 1.3rem;
            }
            
            .article-hero-content h1 {
                font-size: 1.5rem;
            }
            
            .article-body {
                padding: 1rem;
            }
            
            .article-body h2 {
                font-size: 1.2rem;
                padding-left: 0.6rem;
            }
            
            .btn-primary,
            .btn-outline {
                padding: 0.75rem 1.8rem;
                font-size: 0.95rem;
            }
            
            .fab-support {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 1rem;
                bottom: 5rem;
            }
        }

/* roulang page: category1 */
:root {
            --gold-primary: #C5A059;
            --gold-dark: #8B6914;
            --gold-light: #FFBF00;
            --bg-obsidian: #121212;
            --bg-charcoal: #1C1C1E;
            --bg-card: #1E1E1E;
            --text-warm-white: #F5F5F7;
            --text-gold-muted: #D4AC0D;
            --text-muted: #B0B0B0;
            --border-subtle: #2C2C2E;
            --border-gold: #C5A059;
            --shadow-elegant: 0 10px 30px rgba(0,0,0,0.5);
            --shadow-card-hover: 0 15px 40px rgba(0,0,0,0.6), 0 0 20px rgba(197,160,89,0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --font-head: 'Georgia', 'Times New Roman', serif;
            --font-body: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-obsidian);
            color: var(--text-warm-white);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

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

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-head);
            line-height: 1.3;
            margin-bottom: 0.5rem;
        }

        .main-header {
            position: sticky;
            top: 0;
            width: 100%;
            background-color: rgba(18,18,18,0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(197,160,89,0.25);
            z-index: 100;
            padding: 0.85rem 0;
            transition: background-color 0.3s ease;
            box-shadow: 0 2px 15px rgba(0,0,0,0.4);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            font-family: var(--font-head);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-warm-white);
            letter-spacing: 1px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .logo i {
            color: var(--gold-primary);
            font-size: 1.8rem;
        }

        .logo span {
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            list-style: none;
            margin: 0;
        }

        .nav-menu a {
            display: block;
            padding: 0.65rem 1.2rem;
            color: var(--text-muted);
            text-decoration: none;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
            letter-spacing: 0.3px;
        }

        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--gold-primary);
            background-color: rgba(197,160,89,0.08);
            border-color: rgba(197,160,89,0.25);
        }

        .nav-cta-group {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .btn-login {
            color: var(--text-muted);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            transition: color 0.2s;
            white-space: nowrap;
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            font-weight: 700;
            padding: 0.6rem 1.8rem;
            border-radius: 30px;
            text-decoration: none;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 12px rgba(197,160,89,0.3);
            border: 1px solid var(--gold-primary);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(197,160,89,0.45);
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            color: #000;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-warm-white);
            font-size: 1.6rem;
            cursor: pointer;
        }

        .hero-category {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
            border-bottom: 2px solid var(--border-gold);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(18,18,18,0.75) 0%, rgba(18,18,18,0.92) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: left;
            max-width: 700px;
            margin: 0 auto;
            padding: 4rem 1.5rem;
            width: 100%;
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            color: var(--text-warm-white);
        }

        .hero-content h1 span {
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

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

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-number {
            font-family: var(--font-head);
            font-size: 2rem;
            font-weight: 700;
            color: var(--gold-primary);
        }

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

        .btn-hero-cta {
            display: inline-block;
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            font-weight: 700;
            padding: 1rem 2.5rem;
            border-radius: 30px;
            font-size: 1.1rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 15px rgba(197,160,89,0.35);
            border: 1px solid var(--gold-primary);
            text-decoration: none;
        }

        .btn-hero-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(197,160,89,0.5);
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            color: #000;
        }

        .section-padding {
            padding: 5rem 0;
        }

        .section-header {
            margin-bottom: 3rem;
            text-align: left;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 0.8rem;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 650px;
        }

        .promo-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .promo-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-smooth);
            position: relative;
        }

        .promo-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-gold);
        }

        .promo-card-image {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .promo-tag {
            position: absolute;
            top: 15px;
            right: 15px;
            background: linear-gradient(135deg, #D32F2F, #B71C1C);
            color: #fff;
            padding: 0.35rem 1rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            box-shadow: 0 2px 8px rgba(211,47,47,0.4);
        }

        .promo-card-body {
            padding: 1.8rem;
        }

        .promo-card-body h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 0.7rem;
        }

        .promo-card-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 1.2rem;
        }

        .promo-value {
            font-family: var(--font-head);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--gold-primary);
            margin-bottom: 1.2rem;
        }

        .btn-promo-detail {
            display: inline-block;
            padding: 0.65rem 1.8rem;
            border: 1px solid var(--border-gold);
            color: var(--gold-primary);
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition-fast);
            text-decoration: none;
        }

        .btn-promo-detail:hover {
            background-color: rgba(197,160,89,0.1);
            color: var(--gold-light);
        }

        .how-it-works {
            background-color: var(--bg-charcoal);
            padding: 5rem 0;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 2rem;
            max-width: 800px;
            margin: 0 auto;
        }

        .step-item {
            display: flex;
            align-items: flex-start;
            gap: 1.5rem;
        }

        .step-number {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.3rem;
            font-family: var(--font-head);
            box-shadow: 0 4px 12px rgba(197,160,89,0.3);
        }

        .step-content h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 0.4rem;
        }

        .step-content p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .testimonial-section {
            padding: 5rem 0;
        }

        .testimonial-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: var(--transition-smooth);
        }

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

        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .testimonial-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--bg-charcoal);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold-primary);
            font-size: 1.5rem;
        }

        .testimonial-meta h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 0.1rem;
        }

        .testimonial-meta span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .testimonial-text {
            color: var(--text-muted);
            font-style: italic;
            line-height: 1.7;
        }

        .faq-section {
            padding: 5rem 0;
            background-color: var(--bg-charcoal);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .faq-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 1.2rem;
            overflow: hidden;
            transition: var(--transition-fast);
        }

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

        .faq-question {
            padding: 1.3rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-warm-white);
            font-size: 1.05rem;
        }

        .faq-question i {
            color: var(--gold-primary);
            transition: transform 0.3s ease;
        }

        .faq-answer {
            padding: 0 2rem 1.5rem;
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .cta-banner {
            background: linear-gradient(135deg, rgba(197,160,89,0.1), rgba(139,105,20,0.1));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            text-align: center;
            margin: 5rem 0;
        }

        .cta-banner h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 1rem;
        }

        .cta-banner p {
            color: var(--text-muted);
            font-size: 1.1rem;
            margin-bottom: 2rem;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .main-footer {
            background-color: var(--bg-charcoal);
            padding: 4rem 0 2rem;
            border-top: 2px solid var(--border-gold);
            margin-top: 2rem;
        }

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

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

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

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border-subtle);
        }

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

        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--bg-charcoal), #000);
            border: 2px solid var(--gold-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold-primary);
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(197,160,89,0.3);
            transition: var(--transition-smooth);
            animation: float 3s ease-in-out infinite;
        }

        .fab-left:hover {
            transform: scale(1.15);
            box-shadow: 0 8px 30px rgba(197,160,89,0.5);
            border-color: var(--gold-light);
        }

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

        @media (max-width: 1024px) {
            .promo-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-content h1 {
                font-size: 2.3rem;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: rgba(18,18,18,0.95);
                flex-direction: column;
                padding: 1.5rem;
                backdrop-filter: blur(16px);
                border-bottom: 2px solid var(--border-gold);
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-cta-group {
                display: flex;
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .hero-stats {
                gap: 1.5rem;
            }
            .hero-category {
                min-height: 60vh;
            }
            .cta-banner {
                padding: 2rem 1.5rem;
            }
            .cta-banner h3 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 1rem;
            }
            .hero-stat-number {
                font-size: 1.6rem;
            }
            .btn-hero-cta {
                padding: 0.8rem 2rem;
                font-size: 1rem;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
        }

/* roulang page: category2 */
:root {
            --gold-primary: #C5A059;
            --gold-dark: #8B6914;
            --gold-light: #FFBF00;
            --bg-obsidian: #121212;
            --bg-charcoal: #1C1C1E;
            --bg-card: #1E1E1E;
            --text-warm-white: #F5F5F7;
            --text-gold-muted: #D4AC0D;
            --text-muted: #B0B0B0;
            --border-subtle: #2C2C2E;
            --border-gold: #C5A059;
            --shadow-elegant: 0 10px 30px rgba(0,0,0,0.5);
            --shadow-card-hover: 0 15px 40px rgba(0,0,0,0.6), 0 0 20px rgba(197,160,89,0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --font-head: 'Georgia', 'Times New Roman', serif;
            --font-body: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-obsidian);
            color: var(--text-warm-white);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-head);
            margin: 0;
            line-height: 1.3;
        }

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

        /* Navigation */
        .main-header {
            position: sticky;
            top: 0;
            width: 100%;
            background-color: rgba(18,18,18,0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(197,160,89,0.25);
            z-index: 100;
            padding: 0.85rem 0;
            transition: background-color 0.3s ease;
            box-shadow: 0 2px 15px rgba(0,0,0,0.4);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            font-family: var(--font-head);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-warm-white);
            letter-spacing: 1px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .logo i {
            color: var(--gold-primary);
            font-size: 1.8rem;
        }

        .logo span {
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .nav-menu a {
            display: block;
            padding: 0.65rem 1.2rem;
            color: var(--text-muted);
            text-decoration: none;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
            letter-spacing: 0.3px;
        }

        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--gold-primary);
            background-color: rgba(197,160,89,0.08);
            border-color: rgba(197,160,89,0.25);
        }

        .nav-cta-group {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .btn-login {
            color: var(--text-muted);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            transition: color 0.2s;
            white-space: nowrap;
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            font-weight: 700;
            padding: 0.6rem 1.8rem;
            border-radius: 30px;
            text-decoration: none;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 12px rgba(197,160,89,0.3);
            border: 1px solid var(--gold-primary);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(197,160,89,0.45);
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            color: #000;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-warm-white);
            font-size: 1.6rem;
            cursor: pointer;
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            min-height: 45vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-bottom: 2px solid var(--border-gold);
        }

        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(18,18,18,0.7) 0%, rgba(18,18,18,0.9) 100%);
            z-index: 1;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            padding: 3rem 1.5rem;
        }

        .banner-content h1 {
            font-size: 2.8rem;
            color: var(--gold-primary);
            margin-bottom: 1rem;
            letter-spacing: 1px;
        }

        .banner-content p {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 650px;
            margin: 0 auto;
        }

        /* Promo Hero - Search Style */
        .promo-hero {
            padding: 4rem 0 2rem;
            background-color: var(--bg-obsidian);
        }

        .promo-search-box {
            background-color: var(--bg-charcoal);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 2.5rem 2rem;
            max-width: 800px;
            margin: 0 auto 3rem;
            box-shadow: var(--shadow-elegant);
        }

        .promo-search-box h2 {
            font-size: 1.5rem;
            color: var(--text-warm-white);
            margin-bottom: 1.5rem;
            text-align: center;
        }

        .search-wrap {
            display: flex;
            gap: 0.8rem;
        }

        .search-wrap input {
            flex: 1;
            background-color: var(--bg-obsidian);
            border: 1px solid var(--border-subtle);
            border-radius: 30px;
            padding: 0.9rem 1.5rem;
            color: var(--text-warm-white);
            font-size: 1rem;
            outline: none;
            transition: var(--transition-fast);
        }

        .search-wrap input:focus {
            border-color: var(--gold-primary);
            box-shadow: 0 0 0 3px rgba(197,160,89,0.15);
        }

        .search-wrap button {
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            border: none;
            border-radius: 30px;
            padding: 0.9rem 2rem;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-smooth);
            white-space: nowrap;
        }

        .search-wrap button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(197,160,89,0.4);
        }

        .hot-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            justify-content: center;
            margin-top: 1.2rem;
        }

        .hot-tags span {
            background-color: rgba(197,160,89,0.1);
            border: 1px solid rgba(197,160,89,0.25);
            color: var(--gold-primary);
            padding: 0.4rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            cursor: pointer;
            transition: var(--transition-fast);
        }

        .hot-tags span:hover {
            background-color: rgba(197,160,89,0.2);
            border-color: var(--gold-primary);
        }

        /* Section General */
        .section {
            padding: 4.5rem 0;
        }

        .section-dark {
            background-color: var(--bg-charcoal);
        }

        .section-title {
            font-size: 2rem;
            color: var(--gold-primary);
            margin-bottom: 0.8rem;
            text-align: left;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            text-align: left;
            max-width: 600px;
        }

        /* Promo Cards Grid */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }

        .promo-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-smooth);
            position: relative;
        }

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

        .promo-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .promo-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .promo-badge {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: linear-gradient(135deg, #D32F2F, #FF4500);
            color: #fff;
            padding: 0.35rem 1rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .promo-card-body {
            padding: 1.5rem;
        }

        .promo-card-body h3 {
            font-size: 1.3rem;
            color: var(--text-warm-white);
            margin-bottom: 0.7rem;
        }

        .promo-card-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 1.2rem;
        }

        .promo-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 1rem;
            border-top: 1px solid var(--border-subtle);
        }

        .promo-value {
            font-family: var(--font-head);
            font-size: 1.5rem;
            color: var(--gold-primary);
            font-weight: 700;
        }

        .promo-btn {
            background: transparent;
            border: 1px solid var(--gold-primary);
            color: var(--gold-primary);
            padding: 0.5rem 1.2rem;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

        .promo-btn:hover {
            background-color: var(--gold-primary);
            color: #000;
        }

        /* Benefits List */
        .benefits-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }

        .benefit-item {
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
        }

        .benefit-icon {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            background: rgba(197,160,89,0.1);
            border: 1px solid rgba(197,160,89,0.3);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--gold-primary);
        }

        .benefit-text h4 {
            font-size: 1.15rem;
            color: var(--text-warm-white);
            margin-bottom: 0.4rem;
        }

        .benefit-text p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin: 0;
        }

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

        .step-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: left;
            transition: var(--transition-smooth);
            position: relative;
        }

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

        .step-number {
            font-family: var(--font-head);
            font-size: 2.5rem;
            color: var(--gold-primary);
            opacity: 0.5;
            margin-bottom: 0.8rem;
            line-height: 1;
        }

        .step-card h4 {
            font-size: 1.1rem;
            color: var(--text-warm-white);
            margin-bottom: 0.5rem;
        }

        .step-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 0;
        }

        /* FAQ */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(197,160,89,0.3);
        }

        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            color: var(--text-warm-white);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.05rem;
        }

        .faq-question i {
            color: var(--gold-primary);
            transition: transform 0.3s ease;
            font-size: 0.9rem;
        }

        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 0.95rem;
            display: none;
        }

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

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, var(--bg-charcoal), var(--bg-obsidian));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 3.5rem 2rem;
            text-align: center;
        }

        .cta-banner h2 {
            font-size: 2rem;
            color: var(--gold-primary);
            margin-bottom: 0.8rem;
        }

        .cta-banner p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 2rem;
        }

        .btn-cta-large {
            display: inline-block;
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            font-weight: 700;
            padding: 1rem 2.8rem;
            border-radius: 40px;
            font-size: 1.1rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            box-shadow: 0 6px 20px rgba(197,160,89,0.3);
            border: 1px solid var(--gold-primary);
            text-decoration: none;
        }

        .btn-cta-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(197,160,89,0.5);
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            color: #000;
        }

        /* Footer */
        .main-footer {
            background-color: var(--bg-charcoal);
            border-top: 1px solid var(--border-gold);
            padding: 3.5rem 0 1.5rem;
            margin-top: 0;
        }

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

        .footer-col h4 {
            color: var(--gold-primary);
            font-size: 1.1rem;
            margin-bottom: 1.2rem;
            font-family: var(--font-head);
        }

        .footer-col p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            transition: color 0.2s;
        }

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

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

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

        /* FAB - Royal Style */
        .fab-left {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 99;
            width: 52px;
            height: 52px;
            background: var(--bg-card);
            border: 2px solid var(--gold-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--gold-primary);
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(197,160,89,0.3);
            animation: floatFab 3s ease-in-out infinite;
            transition: var(--transition-smooth);
            text-decoration: none;
        }

        .fab-left:hover {
            transform: scale(1.15);
            box-shadow: 0 6px 25px rgba(197,160,89,0.5);
            opacity: 1;
        }

        @keyframes floatFab {
            0%, 100% { transform: translateY(0); opacity: 0.85; }
            50% { transform: translateY(-6px); opacity: 1; }
        }

        .fab-notification {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid var(--bg-obsidian);
            animation: blink 1.5s ease-in-out infinite;
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

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

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

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

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

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: rgba(18,18,18,0.98);
                flex-direction: column;
                padding: 1rem 1.5rem;
                border-bottom: 1px solid var(--border-gold);
                gap: 0;
            }

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

            .nav-menu a {
                padding: 0.8rem 1rem;
                border-radius: 0;
                border-bottom: 1px solid var(--border-subtle);
            }

            .hamburger {
                display: block;
            }

            .nav-cta-group {
                gap: 0.5rem;
            }

            .btn-login {
                font-size: 0.85rem;
                padding: 0.4rem 0.6rem;
            }

            .btn-signup {
                font-size: 0.85rem;
                padding: 0.5rem 1.2rem;
            }

            .logo span {
                font-size: 1.1rem;
            }

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

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

            .banner-content h1 {
                font-size: 2rem;
            }

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

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

            .search-wrap {
                flex-direction: column;
            }

            .promo-hero {
                padding: 2rem 0;
            }
        }

        @media (max-width: 520px) {
            .nav-container {
                flex-wrap: wrap;
                gap: 0.5rem;
            }

            .logo {
                font-size: 1.1rem;
            }

            .logo i {
                font-size: 1.3rem;
            }

            .btn-signup {
                padding: 0.45rem 1rem;
                font-size: 0.8rem;
            }

            .btn-login {
                font-size: 0.8rem;
            }

            .banner-content h1 {
                font-size: 1.7rem;
            }

            .banner-content p {
                font-size: 0.95rem;
            }

            .section {
                padding: 3rem 0;
            }

            .promo-search-box {
                padding: 1.5rem 1rem;
            }

            .hot-tags span {
                font-size: 0.75rem;
                padding: 0.3rem 0.7rem;
            }
        }

/* roulang page: category3 */
:root {
            --gold-primary: #C5A059;
            --gold-dark: #8B6914;
            --gold-light: #FFBF00;
            --bg-obsidian: #121212;
            --bg-charcoal: #1C1C1E;
            --bg-card: #1E1E1E;
            --text-warm-white: #F5F5F7;
            --text-gold-muted: #D4AC0D;
            --text-muted: #B0B0B0;
            --border-subtle: #2C2C2E;
            --border-gold: #C5A059;
            --shadow-elegant: 0 10px 30px rgba(0,0,0,0.5);
            --shadow-card-hover: 0 15px 40px rgba(0,0,0,0.6), 0 0 20px rgba(197,160,89,0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --font-head: 'Georgia', 'Times New Roman', serif;
            --font-body: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-obsidian);
            color: var(--text-warm-white);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Navigation */
        .main-header {
            position: sticky;
            top: 0;
            width: 100%;
            background-color: rgba(18,18,18,0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(197,160,89,0.25);
            z-index: 100;
            padding: 0.85rem 0;
            transition: background-color 0.3s ease;
            box-shadow: 0 2px 15px rgba(0,0,0,0.4);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            font-family: var(--font-head);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-warm-white);
            letter-spacing: 1px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .logo i {
            color: var(--gold-primary);
            font-size: 1.8rem;
        }

        .logo span {
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu a {
            display: block;
            padding: 0.65rem 1.2rem;
            color: var(--text-muted);
            text-decoration: none;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
            letter-spacing: 0.3px;
        }

        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--gold-primary);
            background-color: rgba(197,160,89,0.08);
            border-color: rgba(197,160,89,0.25);
        }

        .nav-cta-group {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .btn-login {
            color: var(--text-muted);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            transition: color 0.2s;
            white-space: nowrap;
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            font-weight: 700;
            padding: 0.6rem 1.8rem;
            border-radius: 30px;
            text-decoration: none;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 12px rgba(197,160,89,0.3);
            border: 1px solid var(--gold-primary);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(197,160,89,0.45);
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            color: #000;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-warm-white);
            font-size: 1.6rem;
            cursor: pointer;
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            min-height: 55vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
            border-bottom: 2px solid var(--border-gold);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(18,18,18,0.7) 0%, rgba(18,18,18,0.9) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
            padding: 3rem 1.5rem;
            width: 100%;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(197,160,89,0.15);
            border: 1px solid var(--border-gold);
            color: var(--gold-primary);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 0.4rem 1.2rem;
            border-radius: 30px;
            margin-bottom: 1.5rem;
            letter-spacing: 0.5px;
        }

        .hero-content h1 {
            font-family: var(--font-head);
            font-size: 3rem;
            font-weight: 700;
            color: var(--text-warm-white);
            line-height: 1.25;
            margin-bottom: 1.25rem;
            letter-spacing: -0.5px;
        }

        .hero-content h1 span {
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 2rem;
            max-width: 650px;
        }

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

        .btn-primary {
            background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
            color: #000;
            font-weight: 700;
            padding: 0.85rem 2.5rem;
            border-radius: 30px;
            text-decoration: none;
            font-size: 1.05rem;
            letter-spacing: 0.5px;
            transition: var(--transition-smooth);
            box-shadow: 0 6px 18px rgba(197,160,89,0.35);
            border: 1px solid var(--gold-primary);
            display: inline-block;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(197,160,89,0.5);
            background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
            color: #000;
        }

        .btn-outline {
            background: transparent;
            color: var(--text-warm-white);
            font-weight: 600;
            padding: 0.85rem 2.5rem;
            border-radius: 30px;
            text-decoration: none;
            font-size: 1.05rem;
            transition: var(--transition-smooth);
            border: 1px solid var(--border-subtle);
            display: inline-block;
        }

        .btn-outline:hover {
            border-color: var(--border-gold);
            color: var(--gold-primary);
            background: rgba(197,160,89,0.06);
        }

        /* Main Content Sections */
        .section {
            padding: 5rem 0;
        }

        .section-dark {
            background-color: var(--bg-charcoal);
        }

        .section-title {
            font-family: var(--font-head);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 1rem;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 3rem;
            line-height: 1.7;
            max-width: 700px;
        }

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

        /* Expert Value Proposition */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .value-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .value-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--gold-primary), var(--gold-light));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }

        .value-card:hover::before {
            transform: scaleX(1);
        }

        .value-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-5px);
            box-shadow: var(--shadow-card-hover);
        }

        .value-icon {
            width: 60px;
            height: 60px;
            background: rgba(197,160,89,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(197,160,89,0.3);
        }

        .value-icon i {
            font-size: 1.6rem;
            color: var(--gold-primary);
        }

        .value-card h3 {
            font-family: var(--font-head);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 0.75rem;
        }

        .value-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* Analysis Categories */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }

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

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

        .analysis-card-image {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

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

        .analysis-tag {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: var(--gold-primary);
            color: #000;
            font-weight: 700;
            font-size: 0.75rem;
            padding: 0.35rem 1rem;
            border-radius: 20px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .analysis-card-body {
            padding: 2rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .analysis-card-body h3 {
            font-family: var(--font-head);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 0.75rem;
        }

        .analysis-card-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 1.5rem;
            flex: 1;
        }

        .analysis-meta {
            display: flex;
            gap: 1.5rem;
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 1.25rem;
        }

        .analysis-meta span {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .analysis-meta i {
            color: var(--gold-primary);
            font-size: 0.8rem;
        }

        .btn-card {
            display: inline-block;
            background: transparent;
            color: var(--gold-primary);
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            border: 1px solid var(--border-gold);
            padding: 0.6rem 1.8rem;
            border-radius: 25px;
            transition: var(--transition-fast);
            text-align: center;
            align-self: flex-start;
        }

        .btn-card:hover {
            background: var(--gold-primary);
            color: #000;
        }

        /* Expert Team */
        .experts-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.8rem;
        }

        .expert-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: var(--transition-smooth);
        }

        .expert-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-5px);
            box-shadow: var(--shadow-card-hover);
        }

        .expert-avatar {
            width: 90px;
            height: 90px;
            border-radius: 50%;
            margin: 0 auto 1.2rem;
            background: var(--bg-charcoal);
            border: 2px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .expert-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .expert-avatar i {
            font-size: 2.5rem;
            color: var(--gold-primary);
        }

        .expert-card h4 {
            font-family: var(--font-head);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 0.3rem;
        }

        .expert-role {
            color: var(--gold-primary);
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.75rem;
        }

        .expert-stats {
            display: flex;
            justify-content: center;
            gap: 1.2rem;
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .expert-stats span {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .expert-stats strong {
            color: var(--text-warm-white);
            font-size: 1rem;
        }

        /* Stats Counter */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            text-align: center;
        }

        .stat-item {
            padding: 2rem 1.5rem;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
        }

        .stat-number {
            font-family: var(--font-head);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--gold-primary);
            margin-bottom: 0.5rem;
        }

        .stat-label {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
        }

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

        .faq-item {
            border-bottom: 1px solid var(--border-subtle);
            padding: 1.5rem 0;
        }

        .faq-question {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-warm-white);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.5rem 0;
            transition: color 0.2s;
        }

        .faq-question:hover {
            color: var(--gold-primary);
        }

        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--gold-primary);
        }

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

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

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

        /* CTA Section */
        .cta-section {
            position: relative;
            background: var(--bg-charcoal);
            padding: 5rem 0;
            text-align: center;
            border-top: 2px solid var(--border-gold);
            border-bottom: 2px solid var(--border-gold);
        }

        .cta-content {
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-family: var(--font-head);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 1rem;
        }

        .cta-content p {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            line-height: 1.7;
        }

        /* Footer */
        .main-footer {
            background-color: var(--bg-charcoal);
            padding: 4rem 0 2rem;
            border-top: 1px solid var(--border-subtle);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-col h4 {
            font-family: var(--font-head);
            font-weight: 700;
            color: var(--text-warm-white);
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }

        .footer-col a,
        .footer-col p {
            display: block;
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border-subtle);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* FAB */
        .fab-container {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
        }

        .fab-button {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-charcoal);
            border: 2px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 20px rgba(197,160,89,0.3);
            position: relative;
        }

        .fab-button i {
            font-size: 1.4rem;
            color: var(--gold-primary);
            transition: transform 0.5s ease;
        }

        .fab-button:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(197,160,89,0.5);
        }

        .fab-button:hover i {
            transform: rotate(360deg);
        }

        .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid var(--bg-obsidian);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

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

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

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

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

            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(18,18,18,0.98);
                flex-direction: column;
                padding: 1rem;
                border-bottom: 1px solid var(--border-gold);
            }

            .nav-menu.show {
                display: flex;
            }

            .nav-cta-group {
                margin-left: auto;
            }

            .hero-content h1 {
                font-size: 2rem;
            }

            .value-grid,
            .experts-grid,
            .category-grid {
                grid-template-columns: 1fr;
            }

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

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

            .section-title {
                font-size: 1.7rem;
            }

            .cta-content h2 {
                font-size: 1.7rem;
            }

            .page-hero {
                min-height: 45vh;
            }
        }

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

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

            .hero-content h1 {
                font-size: 1.7rem;
            }

            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
                text-align: center;
            }
        }