:root {
            --brand-primary: #007BFF;
            --brand-primary-hover: #3395FF;
            --brand-secondary: #C0C0C0;
            --brand-accent: #00F5FF;
            --bg-main: #050A18;
            --bg-surface: #0D152B;
            --bg-elevated: #162142;
            --text-primary: #E6EBF5;
            --text-secondary: #B0B9D1;
            --text-muted: #7A86A3;
            --btn-bg: #00F5FF;
            --btn-text: #050A18;
            --btn-hover-bg: #33D4FF;
            --border-default: #1E2B50;
            --border-brand: #00F5FF;
            --radius-md: 12px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --glass-bg: rgba(22, 33, 66, 0.6);
        }

        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;
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            overflow-x: hidden;
            background-color: var(--bg-main);
            color: var(--text-primary);
            background-image: radial-gradient(circle at top right, #162142 0%, #050A18 100%);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--brand-accent); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #33D4FF; }
        
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
            background: rgba(5, 10, 24, 0.8);
        }
        .header-brand { display: flex; align-items: center; gap: 8px; }
        .header-brand strong { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        .header-actions { display: flex; gap: 12px; }
        
        .btn-base {
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            font-weight: 600;
            text-align: center;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.2s ease, background 0.3s ease;
        }
        .btn-primary { background: var(--btn-bg); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-hover-bg); transform: translateY(-2px); }
        .btn-outline { border: 1px solid var(--brand-accent); color: var(--brand-accent); }
        .btn-outline:hover { background: rgba(0, 245, 255, 0.1); }

        main { width: 100%; }
        
        .hero-section { text-align: center; padding: 40px 0; }
        .hero-section h1 { 
            font-size: clamp(1.6rem, 6.5vw, 2.4rem); 
            line-height: 1.2; 
            margin-bottom: 20px; 
            color: var(--text-primary);
        }
        .hero-intro { max-width: 800px; margin: 0 auto 30px; color: var(--text-secondary); }
        .hero-cta-wrapper { margin-bottom: 30px; }
        .btn-full { width: 100%; box-sizing: border-box; font-size: 1.2rem; }
        .hero-tags { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
        .tag-pill { 
            background: var(--bg-elevated); 
            border: 1px solid var(--border-brand); 
            padding: 4px 12px; 
            border-radius: 9999px; 
            font-size: 0.8rem; 
            color: var(--brand-accent);
        }

        .banner-link { display: block; width: 100%; overflow: hidden; border-radius: var(--radius-lg); }
        .banner-img { width: 1024px; height: 512px; aspect-ratio: 2/1; object-fit: cover; }

        .cat-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 16px; 
            margin: 40px 0; 
        }
        .cat-tile { 
            background: var(--glass-bg); 
            border: 1px solid var(--border-default); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            text-align: center; 
            text-decoration: none;
            transition: border-color 0.3s ease;
        }
        .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; color: var(--text-primary); margin-bottom: 8px; }
        .cat-tile span { font-size: 0.85rem; color: var(--text-secondary); display: block; }

        h2 { 
            font-size: clamp(1.3rem, 5.2vw, 1.8rem); 
            line-height: 1.25; 
            margin-top: 3rem; 
            margin-bottom: 1.5rem; 
            color: var(--text-primary);
            border-left: 4px solid var(--brand-accent);
            padding-left: 15px;
        }
        h3 { 
            font-size: clamp(1.05rem, 4.2vw, 1.25rem); 
            line-height: 1.3; 
            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; 
            text-decoration: none; 
            transition: transform 0.3s ease;
            border: 1px solid var(--border-default);
        }
        .game-card:hover { transform: scale(1.03); border-color: var(--brand-accent); }
        .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-container { background: var(--bg-surface); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 20px; }
        .freshness-note { font-style: italic; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 20px; display: block; }
        .facts-table { width: 100%; border-collapse: collapse; }
        .facts-table td { padding: 12px; border-bottom: 1px solid var(--border-default); }
        .facts-table td:first-child { color: var(--text-secondary); font-weight: 500; width: 40%; }
        .facts-table td:last-child { color: var(--text-primary); text-align: right; }
        .terms-link-wrapper { margin-top: 15px; text-align: center; }
        .terms-link { font-size: 0.85rem; color: var(--text-muted); }

        .toc-nav { 
            display: flex; 
            gap: 12px; 
            overflow-x: auto; 
            padding: 10px 0; 
            margin-bottom: 30px; 
            scrollbar-width: none; 
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link { 
            white-space: nowrap; 
            background: var(--bg-elevated); 
            padding: 8px 16px; 
            border-radius: var(--radius-pill); 
            font-size: 0.9rem; 
            border: 1px solid var(--border-default);
        }

        .promo-list { display: flex; flex-direction: column; gap: 20px; }
        .promo-card { 
            background: var(--glass-bg); 
            border: 1px solid var(--border-brand); 
            padding: 24px; 
            border-radius: var(--radius-lg); 
            display: flex; 
            flex-direction: column; 
            gap: 15px;
        }
        .promo-card h3 { margin: 0; color: var(--brand-accent); }
        .promo-card p { margin: 0; color: var(--text-secondary); }

        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 20px; margin: 40px 0; }
        .usp-item { 
            display: flex; 
            gap: 15px; 
            padding: 20px; 
            background: var(--bg-surface); 
            border-radius: var(--radius-md); 
            align-items: flex-start;
        }
        .usp-item i { font-size: 1.5rem; color: var(--brand-accent); margin-top: 4px; }
        .usp-content strong { display: block; color: var(--text-primary); margin-bottom: 5px; }
        .usp-content span { font-size: 0.9rem; color: var(--text-secondary); }

        .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); 
            text-align: center; 
            border: 1px solid var(--border-default);
        }
        .pay-card i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 12px; }
        .pay-card strong { display: block; margin-bottom: 8px; color: var(--text-primary); }
        .pay-card p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

        .guide-steps { display: flex; flex-direction: column; gap: 20px; }
        .step-item { 
            display: flex; 
            gap: 20px; 
            padding: 20px; 
            background: var(--bg-surface); 
            border-radius: var(--radius-md); 
        }
        .step-num { 
            min-width: 40px; 
            height: 40px; 
            background: var(--brand-accent); 
            color: var(--bg-main); 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: bold; 
        }
        .step-content h3 { margin: 0 0 10px 0; }
        .step-content a { color: inherit; text-decoration: none; }

        .app-section { 
            background: var(--bg-elevated); 
            padding: 30px; 
            border-radius: var(--radius-lg); 
            text-align: center; 
        }
        .app-section p { color: var(--text-secondary); margin-bottom: 25px; }

        .player-guides { display: flex; flex-direction: column; gap: 20px; }
        .guide-item { 
            padding: 20px; 
            background: var(--bg-surface); 
            border-radius: var(--radius-md); 
            border-left: 4px solid var(--brand-accent);
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; display: block; }

        .announcement-list { display: flex; flex-direction: column; gap: 16px; }
        .announcement-item { 
            display: flex; 
            gap: 15px; 
            padding: 15px; 
            background: var(--bg-surface); 
            border-radius: var(--radius-md); 
        }
        .announcement-item i { color: var(--brand-accent); margin-top: 5px; }
        .announcement-body h3 { margin: 0 0 5px 0; font-size: 1.1rem; }
        .announcement-body p { margin: 0 0 8px 0; font-size: 0.9rem; color: var(--text-secondary); }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); }

        .faq-list { display: flex; flex-direction: column; gap: 12px; }
        details { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius-md); }
        summary { padding: 15px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        summary::-webkit-details-marker { display: none; }
        summary h3 { margin: 0; font-size: 1.1rem; }
        .faq-answer { padding: 0 15px 15px; color: var(--text-secondary); font-size: 0.95rem; }

        .about-box { padding: 24px; background: var(--bg-surface); border-radius: var(--radius-lg); margin-bottom: 20px; }
        .team-card { 
            background: var(--bg-elevated); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-default);
        }
        .team-card h3 { margin: 0 0 10px 0; color: var(--brand-accent); }
        .team-card p { margin: 0 0 10px 0; font-size: 0.9rem; color: var(--text-secondary); }

        .security-section { padding: 24px; background: var(--bg-surface); border-radius: var(--radius-lg); }
        .security-links { display: flex; gap: 15px; margin: 20px 0; flex-wrap: wrap; }
        .security-link { background: var(--bg-elevated); padding: 8px 12px; border-radius: var(--radius-md); font-size: 0.85rem; }

        footer { 
            margin-top: 50px; 
            padding: 40px 0; 
            border-top: 1px solid var(--border-default); 
            text-align: center; 
        }
        .footer-sitemap { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 15px; 
            margin-bottom: 30px; 
            text-align: left;
        }
        .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; 
            height: 72px; 
            background: rgba(13, 21, 43, 0.95); 
            backdrop-filter: blur(15px); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            padding-bottom: env(safe-area-inset-bottom); 
            border-top: 1px solid var(--border-default); 
            z-index: 2000; 
        }
        .nav-item { 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            gap: 4px; 
            text-decoration: none; 
            color: var(--text-secondary); 
            font-size: 0.75rem; 
        }
        .nav-item i { font-size: 1.2rem; }
        .nav-item:hover { color: var(--brand-accent); }

        .utility-link { display: inline-block; margin-top: 15px; color: var(--brand-accent); font-weight: 500; }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .cat-grid { grid-template-columns: repeat(3, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .navigator { position: static; height: auto; padding: 20px 0; border-top: none; display: none; }
            .footer-sitemap { grid-template-columns: repeat(5, 1fr); }
        }

        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .cat-grid { grid-template-columns: repeat(4, 1fr); }
        }

        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }