:root {
            --brand-primary: #FFD700;
            --brand-primary-hover: #FFC107;
            --brand-secondary: #C0C0C0;
            --brand-accent: #E91E63;
            --bg-main: #1A1A1A;
            --bg-surface: #2D2D2D;
            --bg-surface-variant: #3D3D3D;
            --bg-overlay: rgba(0, 0, 0, 0.7);
            --text-primary: #FFFFFF;
            --text-secondary: #B0B0B0;
            --text-disabled: #666666;
            --text-inverse: #000000;
            --semantic-success: #4CAF50;
            --semantic-warning: #FF9800;
            --semantic-error: #F44336;
            --semantic-info: #2196F3;
            --border-light: #444444;
            --border-medium: #555555;
            --border-strong: #FFD700;
            --font-primary: 'Roboto', 'Segoe UI', Arial, sans-serif;
            --font-heading: 'Montserrat', 'Open Sans', sans-serif;
            --font-accent: '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-surface);
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 15px;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--border-strong);
        }
        header .logo-section { display: flex; align-items: center; gap: 10px; }
        header img { width: 25px; height: 25px; object-fit: cover; }
        header strong { font-size: 16px; font-weight: normal; color: var(--brand-primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn-login, .btn-register {
            padding: 6px 15px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            border: none;
            transition: 0.3s;
        }
        .btn-login { background: var(--bg-surface-variant); color: var(--text-primary); border: 1px solid var(--border-light); }
        .btn-register { background: var(--brand-primary); color: var(--text-inverse); }
        .btn-register:hover { background: var(--brand-primary-hover); }

        main { max-width: 1000px; margin: 0 auto; padding: 15px; }
        .banner-container { width: 100%; aspect-ratio: 4/3; overflow: hidden; border-radius: 15px; cursor: pointer; margin-bottom: 20px; }
        .banner-container img { width: 100%; height: 100%; object-fit: cover; }

        .promo-card {
            background: linear-gradient(135deg, #C0C0C0, #FFD700);
            color: #000;
            padding: 25px;
            border-radius: 15px;
            text-align: center;
            margin-bottom: 25px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.3);
        }
        .promo-card h2 { font-family: var(--font-heading); font-size: 24px; margin-bottom: 10px; color: #000; }
        .promo-card p { margin-bottom: 20px; font-weight: 500; }
        .btn-bonus {
            background: var(--brand-accent);
            color: #fff;
            padding: 12px 30px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: bold;
            display: inline-block;
            border: none;
            cursor: pointer;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(233, 30, 99, 0.4);
        }

        .section-title { font-family: var(--font-heading); color: var(--brand-primary); font-size: 20px; margin: 30px 0 15px; text-align: center; border-left: 4px solid var(--brand-primary); padding-left: 10px; }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .game-card { 
            background: var(--bg-surface); 
            border-radius: 12px; 
            overflow: hidden; 
            text-decoration: none; 
            transition: transform 0.2s; 
            border: 1px solid var(--border-light);
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--brand-primary); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { font-size: 14px; color: #fff; text-align: center; padding: 10px; }

        .intro-card {
            background: var(--bg-surface);
            border: 2px solid var(--brand-primary);
            border-radius: 15px;
            padding: 20px;
            text-align: center;
            margin: 30px 0;
        }
        .intro-card h1 { font-family: var(--font-heading); color: var(--brand-primary); font-size: 28px; margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 15px; }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .payment-item {
            background: var(--bg-surface-variant);
            padding: 15px 5px;
            text-align: center;
            border-radius: 10px;
            font-size: 12px;
            color: var(--text-secondary);
            border: 1px solid var(--border-light);
        }
        .payment-item i { display: block; font-size: 20px; color: var(--brand-primary); margin-bottom: 5px; }

        .guide-grid { display: grid; grid-template-columns: 1fr; gap: 15px; margin-bottom: 30px; }
        .guide-item { background: var(--bg-surface); padding: 15px; border-radius: 10px; border-left: 4px solid var(--brand-primary); }
        .guide-item h3 { font-size: 16px; margin-bottom: 8px; color: var(--brand-primary); }
        .guide-item p { font-size: 14px; color: var(--text-secondary); }

        .review-grid { display: grid; grid-template-columns: 1fr; gap: 15px; }
        .review-card { background: var(--bg-surface); padding: 15px; border-radius: 12px; border: 1px solid var(--border-light); }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--brand-secondary); }
        .review-user { font-weight: 600; font-size: 15px; }
        .review-stars { color: var(--brand-primary); font-size: 13px; margin-left: 10px; }
        .review-content { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-disabled); text-align: right; }

        .win-record-list { background: var(--bg-surface); border-radius: 12px; overflow: hidden; }
        .win-record-item {
            display: flex;
            justify-content: space-between;
            padding: 12px 15px;
            border-bottom: 1px solid var(--border-light);
            font-size: 13px;
        }
        .win-record-item:last-child { border-bottom: none; }
        .win-user { color: var(--text-primary); }
        .win-game { color: var(--text-secondary); }
        .win-amount { color: var(--brand-primary); font-weight: bold; }
        .win-time { color: var(--text-disabled); }

        .provider-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
        .provider-item {
            background: var(--bg-surface-variant);
            padding: 15px;
            text-align: center;
            border-radius: 8px;
            font-weight: bold;
            color: var(--brand-primary);
            border: 1px solid var(--border-medium);
        }

        .faq-section { display: grid; gap: 15px; }
        .faq-item { background: var(--bg-surface); padding: 15px; border-radius: 10px; }
        .faq-q { font-weight: bold; color: var(--brand-primary); margin-bottom: 8px; display: block; }
        .faq-a { font-size: 14px; color: var(--text-secondary); }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            align-items: center;
            height: 65px;
            border-top: 2px solid var(--brand-primary);
            z-index: 2000;
            padding-bottom: env(safe-area-inset-bottom);
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            text-align: center;
            font-size: 11px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .nav-item i { font-size: 20px; }
        .nav-item:hover { color: var(--brand-primary); }

        footer {
            background: var(--bg-surface);
            padding: 30px 15px 90px;
            border-top: 1px solid var(--border-light);
            text-align: center;
        }
        .footer-contact { margin-bottom: 25px; }
        .footer-contact p { font-size: 14px; margin-bottom: 10px; color: var(--brand-primary); }
        .contact-links { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }
        .contact-links a { color: var(--text-secondary); text-decoration: none; font-size: 13px; }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            text-align: left;
            max-width: 600px;
            margin: 0 auto 30px;
        }
        .footer-links a { color: var(--text-secondary); text-decoration: none; font-size: 13px; }
        .security-section {
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
            font-size: 12px;
            color: var(--text-disabled);
        }
        .security-seals { margin-bottom: 10px; font-size: 18px; color: var(--brand-secondary); }

        @media (min-width: 768px) {
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(8, 1fr); }
            .guide-grid { grid-template-columns: repeat(2, 1fr); }
            .review-grid { grid-template-columns: repeat(2, 1fr); }
        }