:root {
            --brand-primary: #FFD700;
            --brand-secondary: #C0C0C0;
            --brand-accent: #FF0000;
            --brand-highlight: #FFB800;
            --bg-main: #0B0B0B;
            --bg-secondary: #1A1A1A;
            --bg-surface: #262626;
            --bg-overlay: rgba(0, 0, 0, 0.7);
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #757575;
            --text-inverse: #000000;
            --success: #4CAF50;
            --warning: #FF9800;
            --error: #F44336;
            --info: #2196F3;
            --border-default: #333333;
            --border-strong: #4D4D4D;
            --border-brand: #FFD700;
            --font-primary: 'Montserrat', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
            --font-display: 'Playfair Display', serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { 
            background-color: var(--bg-main); 
            color: var(--text-primary); 
            font-family: var(--font-primary); 
            line-height: 1.5; 
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-secondary);
            border-bottom: 2px solid var(--border-brand);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-left { display: flex; align-items: center; gap: 10px; }
        .header-left img { width: 25px; height: 25px; }
        .header-left strong { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        .header-right { display: flex; gap: 10px; }
        .btn-login { 
            background: transparent; 
            border: 1px solid var(--brand-primary); 
            color: var(--brand-primary); 
            padding: 6px 15px; 
            border-radius: 4px; 
            cursor: pointer; 
            font-weight: 600;
        }
        .btn-register { 
            background: var(--brand-primary); 
            border: 1px solid var(--brand-primary); 
            color: var(--text-inverse); 
            padding: 6px 15px; 
            border-radius: 4px; 
            cursor: pointer; 
            font-weight: 600;
        }
        main { max-width: 1200px; margin: 0 auto; padding: 0 15px 100px; }
        .banner-container { margin-top: 15px; }
        .banner-img { 
            width: 100%; 
            aspect-ratio: 2/1; 
            object-fit: cover; 
            border-radius: 12px; 
            cursor: pointer; 
            display: block;
        }
        .promo-card {
            background: linear-gradient(135deg, var(--bg-surface), var(--bg-secondary));
            border: 2px solid var(--border-brand);
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            margin: 20px 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .promo-card h2 { font-family: var(--font-display); font-size: 28px; color: var(--brand-primary); margin-bottom: 15px; }
        .promo-card p { color: var(--text-secondary); margin-bottom: 25px; font-size: 18px; }
        .btn-promo { 
            background: var(--brand-accent); 
            color: white; 
            padding: 15px 40px; 
            font-size: 20px; 
            font-weight: bold; 
            border: none; 
            border-radius: 50px; 
            cursor: pointer; 
            text-transform: uppercase;
            transition: transform 0.2s;
        }
        .btn-promo:hover { transform: scale(1.05); }
        .section-title { font-family: var(--font-display); font-size: 24px; text-align: center; margin: 40px 0 20px; color: var(--brand-primary); }
        .game-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 15px; 
            margin-bottom: 40px;
        }
        .game-card { 
            background: var(--bg-surface); 
            border-radius: 12px; 
            text-decoration: none; 
            overflow: hidden; 
            transition: 0.3s; 
            border: 1px solid var(--border-default);
        }
        .game-card:hover { border-color: var(--brand-primary); transform: translateY(-5px); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { 
            color: var(--text-primary); 
            font-size: 14px; 
            text-align: center; 
            padding: 10px; 
            white-space: nowrap; 
            overflow: hidden; 
            text-overflow: ellipsis;
        }
        .intro-card {
            background: var(--bg-surface);
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            margin: 40px 0;
            border-left: 5px solid var(--brand-primary);
        }
        .intro-card h1 { font-family: var(--font-display); font-size: 32px; color: var(--brand-primary); margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; line-height: 1.8; }
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 40px;
        }
        .payment-item {
            background: var(--bg-surface);
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            border: 1px solid var(--border-default);
            font-size: 13px;
            color: var(--text-secondary);
        }
        .payment-item i { display: block; font-size: 24px; color: var(--brand-primary); margin-bottom: 8px; }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }
        .guide-card {
            background: var(--bg-secondary);
            padding: 20px;
            border-radius: 12px;
            border-bottom: 3px solid var(--brand-primary);
        }
        .guide-card h3 { color: var(--brand-primary); margin-bottom: 10px; font-size: 18px; }
        .guide-card p { color: var(--text-secondary); font-size: 14px; text-align: justify; }
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }
        .review-card {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-default);
        }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--brand-primary); }
        .review-user { font-weight: bold; color: var(--text-primary); }
        .review-stars { color: var(--brand-primary); font-size: 12px; margin-left: 10px; }
        .review-text { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; font-style: italic; }
        .review-date { font-size: 12px; color: var(--text-muted); display: block; }
        .win-record-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-bottom: 40px;
        }
        .win-card {
            background: linear-gradient(90deg, var(--bg-surface), var(--bg-secondary));
            padding: 12px;
            border-radius: 8px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            border: 1px solid var(--border-strong);
        }
        .win-user { color: var(--brand-primary); font-weight: 600; }
        .win-amount { color: var(--success); font-weight: bold; }
        .provider-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 40px;
        }
        .provider-item {
            background: var(--bg-surface);
            padding: 20px;
            text-align: center;
            border-radius: 10px;
            font-weight: bold;
            color: var(--brand-primary);
            border: 1px solid var(--border-strong);
            font-size: 16px;
        }
        .faq-section { margin-bottom: 40px; }
        .faq-item {
            background: var(--bg-secondary);
            margin-bottom: 10px;
            border-radius: 8px;
            padding: 20px;
            border: 1px solid var(--border-default);
        }
        .faq-item h3 { color: var(--brand-primary); font-size: 16px; margin-bottom: 10px; }
        .faq-item p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; }
        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-secondary);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding: 12px 0;
            border-top: 2px solid var(--brand-primary);
            z-index: 2000;
            box-shadow: 0 -5px 15px rgba(0,0,0,0.5);
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 11px;
            gap: 4px;
        }
        .nav-item i { font-size: 20px; color: var(--brand-primary); }
        footer {
            background: var(--bg-secondary);
            padding: 40px 20px 120px;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .footer-contact {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 30px;
            font-size: 14px;
        }
        .footer-contact a { color: var(--brand-primary); text-decoration: none; }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            text-align: left;
            max-width: 800px;
            margin: 0 auto 40px;
        }
        .footer-links a { color: var(--text-secondary); text-decoration: none; font-size: 13px; }
        .footer-security {
            border-top: 1px solid var(--border-strong);
            padding-top: 20px;
            color: var(--text-muted);
            font-size: 12px;
        }
        .security-icons { font-size: 24px; color: var(--brand-secondary); margin-bottom: 10px; display: flex; justify-content: center; gap: 20px; }
        @media (max-width: 768px) {
            .payment-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-links { grid-template-columns: repeat(2, 1fr); }
        }