:root {
            --brand-primary: #0072FF;
            --brand-primary-hover: #338CFF;
            --brand-secondary: #C0C0C8;
            --brand-accent: #00F5FF;
            --bg-main: #050B1A;
            --bg-surface: #0D162D;
            --bg-elevated: #162242;
            --text-primary: #E6EBF5;
            --text-secondary: #B0B8D1;
            --text-muted: #7A86A5;
            --border-default: #1C2B52;
            --border-brand: #00F5FF;
            --grad-brand: linear-gradient(135deg, #0072FF 0%, #00F5FF 100%);
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --radius-md: 12px;
            --radius-lg: 24px;
        }
        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: clamp(15px, 3.9vw, 16px);
            line-height: 1.65;
            background-color: var(--bg-main);
            color: var(--text-primary);
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--brand-accent); text-decoration: none; transition: color 0.3s; }
        a:hover { color: #33E0FF; }
        .btn-base {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            border: none;
            text-align: center;
        }
        .btn-primary { background: var(--grad-brand); color: var(--bg-main); }
        .btn-primary:hover { opacity: 0.9; transform: translateY(-2px); }
        .btn-outline { border: 1px solid var(--border-brand); color: var(--text-primary); background: transparent; }
        .btn-outline:hover { background: var(--border-brand); color: var(--bg-main); }
        .btn-full { width: 100%; display: flex; }
        
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            max-width: 1200px;
            margin: 0 auto;
        }
        .header-logo-link { display: flex; align-items: center; gap: 8px; }
        .header-logo-link strong { font-size: 16px; font-weight: 400; color: var(--text-primary); }
        .header-actions { display: flex; gap: 12px; }

        main { max-width: 1200px; margin: 0 auto; }
        
        .hero-section { text-align: center; padding: 40px 0; }
        .hero-section h1 { 
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: clamp(1.8rem, 6vw, 3rem); 
            line-height: 1.2; 
            margin-bottom: 20px;
            background: var(--grad-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-intro { 
            font-size: 1.1rem; 
            color: var(--text-secondary); 
            max-width: 800px; 
            margin: 0 auto 30px;
        }
        .hero-tags { 
            display: flex; 
            flex-wrap: wrap; 
            justify-content: center; 
            gap: 10px; 
            margin-top: 24px; 
        }
        .hero-tag { 
            background: var(--bg-elevated); 
            border: 1px solid var(--border-default); 
            padding: 4px 12px; 
            border-radius: 9999px; 
            font-size: 0.85rem; 
            color: var(--text-secondary); 
        }

        .banner-wrap { margin: 20px 0; }
        .banner-wrap img { width: 100%; aspect-ratio: 2/1; object-fit: cover; border-radius: var(--radius-lg); }

        .category-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 16px; 
            margin-bottom: 40px; 
        }
        .cat-tile { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            text-align: center; 
            transition: border-color 0.3s;
        }
        .cat-tile:hover { border-color: var(--brand-accent); }
        .cat-tile i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 12px; }
        .cat-tile strong { display: block; font-size: 1.1rem; margin-bottom: 8px; color: var(--text-primary); }
        .cat-tile span { font-size: 0.9rem; color: var(--text-muted); line-height: 1.4; }

        .game-section { padding: 40px 0; content-visibility: auto; contain-intrinsic-size: 500px; }
        .game-section h2 { 
            font-size: clamp(1.4rem, 5vw, 2.2rem); 
            margin-bottom: 24px; 
            text-align: center;
            color: var(--text-primary);
        }
        .game-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 16px; 
        }
        .game-card { 
            background: var(--bg-surface); 
            border-radius: var(--radius-md); 
            overflow: hidden; 
            border: 1px solid var(--border-default); 
            transition: transform 0.3s;
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--brand-primary); }
        .game-card img { aspect-ratio: 1/1; object-fit: cover; width: 100%; }
        .game-card h3 { 
            padding: 12px; 
            margin: 0; 
            font-size: 1rem; 
            text-align: center; 
            color: var(--text-primary); 
        }

        .facts-section { padding: 40px 0; text-align: center; }
        .freshness-notice { font-style: italic; color: var(--text-muted); margin-bottom: 20px; display: block; }
        .facts-table { 
            width: 100%; 
            border-collapse: collapse; 
            background: var(--bg-surface); 
            border-radius: var(--radius-md); 
            overflow: hidden; 
            margin-bottom: 16px;
        }
        .facts-table td { 
            padding: 14px; 
            border-bottom: 1px solid var(--border-default); 
            text-align: left; 
            color: var(--text-secondary); 
        }
        .facts-table td:first-child { font-weight: 600; color: var(--text-primary); width: 40%; }
        .terms-link { font-size: 0.85rem; color: var(--text-muted); display: block; }

        .toc-nav { 
            display: flex; 
            overflow-x: auto; 
            gap: 12px; 
            padding: 20px 0; 
            scrollbar-width: none; 
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link { 
            background: var(--bg-elevated); 
            padding: 8px 16px; 
            border-radius: var(--radius-md); 
            white-space: nowrap; 
            font-size: 0.9rem; 
            border: 1px solid var(--border-default); 
        }

        .promo-section { padding: 40px 0; }
        .promo-grid { display: grid; gap: 20px; }
        .promo-card { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 24px; 
            border-radius: var(--radius-lg); 
            display: flex; 
            flex-direction: column; 
            gap: 16px;
        }
        .promo-card h3 { margin: 0; font-size: 1.4rem; color: var(--brand-accent); }

        .usp-bar { 
            display: grid; 
            gap: 20px; 
            padding: 40px 0; 
        }
        .usp-tile { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            display: flex; 
            gap: 16px; 
            align-items: flex-start; 
            border-left: 4px solid var(--brand-primary);
        }
        .usp-tile i { font-size: 1.5rem; color: var(--brand-accent); margin-top: 4px; }
        .usp-tile strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
        .usp-tile p { margin: 0; font-size: 0.95rem; color: var(--text-secondary); }

        .payment-section { padding: 40px 0; }
        .payment-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 16px; 
        }
        .pay-card { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-default); 
            text-align: center; 
        }
        .pay-card i { font-size: 2rem; color: var(--brand-primary); margin-bottom: 12px; }
        .pay-card strong { display: block; margin-bottom: 8px; }
        .pay-card p { margin: 0; font-size: 0.85rem; color: var(--text-muted); }

        .guide-steps { padding: 40px 0; }
        .step-item { 
            display: flex; 
            gap: 20px; 
            margin-bottom: 24px; 
            align-items: flex-start; 
        }
        .step-num { 
            background: var(--grad-brand); 
            color: var(--bg-main); 
            width: 32px; 
            height: 32px; 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: bold; 
            flex-shrink: 0; 
        }
        .step-content h3 { margin: 0 0 8px 0; }
        .step-content a { color: inherit; }

        .mobile-section { 
            padding: 40px 0; 
            background: var(--bg-surface); 
            border-radius: var(--radius-lg); 
            text-align: center; 
            margin-bottom: 40px; 
        }
        .mobile-section h2 { margin-top: 0; }

        .player-guides { padding: 40px 0; }
        .guide-card { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            margin-bottom: 16px; 
            border: 1px solid var(--border-default); 
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 12px; display: block; }

        .announcements { padding: 40px 0; }
        .ann-item { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            margin-bottom: 16px; 
            display: flex; 
            gap: 16px; 
            border: 1px solid var(--border-default); 
        }
        .ann-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-section { padding: 40px 0; }
        .faq-item { margin-bottom: 12px; }
        details { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius-md); }
        summary { padding: 16px; cursor: pointer; list-style: none; }
        summary h3 { margin: 0; font-size: 1.1rem; color: var(--text-primary); }
        .faq-answer { padding: 0 16px 16px; color: var(--text-secondary); }
        .more-answers { display: block; text-align: center; margin-top: 20px; font-weight: 600; }

        .about-section { padding: 40px 0; }
        .team-card { 
            background: var(--bg-elevated); 
            padding: 24px; 
            border-radius: var(--radius-md); 
            margin-top: 30px; 
            border: 1px solid var(--border-brand); 
        }

        .security-section { padding: 40px 0; text-align: center; }
        .security-links { display: flex; justify-content: center; gap: 20px; margin: 20px 0; flex-wrap: wrap; }

        footer { 
            background: var(--bg-surface); 
            padding: 40px 0 20px; 
            margin-top: 40px; 
            border-top: 1px solid var(--border-default); 
            text-align: center; 
        }
        .footer-sitemap { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 12px; 
            margin-bottom: 30px; 
            max-width: 800px; 
            margin-inline: auto; 
        }
        .footer-sitemap a { color: var(--text-secondary); font-size: 0.9rem; }
        .footer-contact { margin-bottom: 20px; color: var(--text-secondary); }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }

        .navigator { 
            position: fixed; 
            inset-inline: 0; 
            bottom: 0; 
            background: var(--bg-surface); 
            display: flex; 
            justify-content: space-around; 
            padding: 12px 0 calc(12px + env(safe-area-inset-bottom)); 
            border-top: 1px solid var(--border-default); 
            backdrop-filter: blur(10px);
            z-index: 1000;
        }
        .nav-item { text-align: center; color: var(--text-secondary); font-size: 0.75rem; }
        .nav-item i { display: block; font-size: 1.2rem; margin-bottom: 4px; }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .category-grid { grid-template-columns: repeat(3, 1fr); }
            .game-grid { grid-template-columns: repeat(3, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .navigator { position: static; display: none; }
        }
        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .category-grid { grid-template-columns: repeat(4, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
        }