:root {
            --brand-primary: #007BFF;
            --brand-primary-hover: #3395FF;
            --brand-secondary: #C0C0C0;
            --brand-secondary-hover: #E0E0E0;
            --brand-accent: #00F5FF;
            --bg-main: #050A15;
            --bg-surface: #0D1526;
            --bg-elevated: #16213B;
            --bg-overlay: rgba(5, 10, 21, 0.8);
            --text-primary: #E6F0FF;
            --text-secondary: #B0C4DE;
            --text-muted: #7B8CA8;
            --text-brand-contrast: #050A15;
            --text-link: #00F5FF;
            --text-link-hover: #FFFFFF;
            --btn-bg: #007BFF;
            --btn-text: #FFFFFF;
            --btn-bg-hover: #00F5FF;
            --btn-text-hover: #050A15;
            --semantic-success: #2ECC71;
            --semantic-error: #FF4D4D;
            --semantic-warning: #FFC107;
            --semantic-info: #3498DB;
            --border-default: #1F2D4D;
            --border-strong: #2D3F6B;
            --border-brand: #00F5FF;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-pill: 9999px;
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --shadow-elevated: 0 12px 40px 0 rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 15px rgba(0, 245, 255, 0.4);
            --grad-brand: linear-gradient(135deg, #007BFF 0%, #00F5FF 100%);
            --grad-hero: radial-gradient(circle at center, #16213B 0%, #050A15 100%);
            --grad-btn: linear-gradient(to bottom, #008CFF 0%, #007BFF 100%);
        }

        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, video, iframe { max-width: 100%; height: auto; display: block; }
        a { color: var(--text-link); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: var(--text-link-hover); }
        .btn, .cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn-primary { background: var(--grad-btn); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-bg-hover); color: var(--btn-text-hover); transform: translateY(-2px); box-shadow: var(--shadow-glow); }
        .btn-secondary { background: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--border-brand); }
        .btn-secondary:hover { background: var(--border-brand); color: var(--text-brand-contrast); }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(5, 10, 21, 0.9);
            backdrop-filter: blur(10px);
        }
        .header-logo { display: flex; align-items: center; gap: 10px; }
        .header-logo strong { font-size: 16px; font-weight: 400; }
        .header-nav { display: flex; gap: 12px; }

        main { width: 100%; }
        section { 
            padding: 40px 0; 
            content-visibility: auto; 
            contain-intrinsic-size: 1px 500px; 
        }

        h1 { 
            font-family: 'Outfit', sans-serif; 
            font-size: clamp(1.6rem, 6.5vw, 2.4rem); 
            line-height: 1.2; 
            margin-bottom: 20px; 
            color: var(--text-primary);
            text-align: center;
        }
        h2 { 
            font-family: 'Outfit', sans-serif; 
            font-size: clamp(1.3rem, 5.2vw, 1.8rem); 
            line-height: 1.25; 
            margin-top: 2rem; 
            margin-bottom: 1.5rem; 
            text-align: center; 
            color: var(--text-primary);
        }
        h3 { 
            font-size: clamp(1.05rem, 4.2vw, 1.25rem); 
            line-height: 1.3; 
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .hero-section {
            background: var(--grad-hero);
            text-align: center;
            padding: 60px 20px;
            border-radius: var(--radius-lg);
            margin-bottom: 24px;
        }
        .hero-intro { 
            max-width: 800px; 
            margin: 0 auto 30px; 
            color: var(--text-secondary); 
            font-size: 1.1rem;
        }
        .hero-cta { width: 100%; max-width: 400px; margin: 0 auto; display: block; }
        .hero-tags { 
            display: flex; 
            justify-content: center; 
            gap: 10px; 
            flex-wrap: wrap; 
            margin-top: 25px; 
        }
        .hero-tag { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 6px 14px; 
            border-radius: var(--radius-pill); 
            font-size: 0.85rem; 
            color: var(--text-muted); 
        }

        .banner-link { display: block; width: 100%; border-radius: var(--radius-md); overflow: hidden; margin-bottom: 30px; }
        .banner-img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }

        .category-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 16px; 
            margin-bottom: 40px; 
        }
        .category-tile { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            text-align: center; 
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .category-tile:hover { border-color: var(--brand-accent); background: var(--bg-elevated); transform: translateY(-5px); }
        .category-tile i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 12px; }
        .category-tile strong { display: block; color: var(--text-primary); margin-bottom: 8px; }
        .category-tile span { font-size: 0.85rem; color: var(--text-muted); }

        .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: all 0.3s ease; 
            text-decoration: none; 
        }
        .game-card:hover { border-color: var(--brand-accent); box-shadow: var(--shadow-glow); }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card-body { padding: 12px; text-align: center; }
        .game-card-body h3 { margin: 0; font-size: 1rem; color: var(--text-primary); }

        .facts-container { 
            background: var(--bg-surface); 
            border-radius: var(--radius-md); 
            padding: 24px; 
            border: 1px solid var(--border-default); 
            max-width: 700px; 
            margin: 0 auto; 
        }
        .freshness-notice { 
            font-style: italic; 
            color: var(--text-muted); 
            font-size: 0.85rem; 
            text-align: center; 
            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 { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .facts-table td:last-child { color: var(--text-primary); text-align: right; }
        .facts-footer { text-align: center; margin-top: 15px; font-size: 0.85rem; }

        .toc-nav { 
            display: flex; 
            overflow-x: auto; 
            gap: 12px; 
            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; max-width: 800px; margin: 0 auto; }
        .promo-card { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-strong); 
            border-radius: var(--radius-md); 
            padding: 24px; 
            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; gap: 20px; max-width: 800px; margin: 0 auto; }
        .usp-tile { 
            background: var(--bg-elevated); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            display: flex; 
            align-items: center; 
            gap: 20px; 
            border: 1px solid var(--border-default); 
        }
        .usp-tile i { font-size: 2rem; color: var(--brand-accent); }
        .usp-content strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
        .usp-content p { margin: 0; color: var(--text-muted); font-size: 0.9rem; }

        .step-list { display: grid; gap: 20px; max-width: 800px; margin: 0 auto; }
        .step-item { 
            display: flex; 
            gap: 20px; 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-default); 
        }
        .step-number { 
            min-width: 40px; 
            height: 40px; 
            background: var(--grad-brand); 
            color: var(--text-brand-contrast); 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: bold; 
        }
        .step-content h3 { margin: 0 0 8px 0; }
        .step-content h3 a { color: inherit; }

        .download-section { 
            text-align: center; 
            max-width: 800px; 
            margin: 0 auto; 
            background: var(--bg-surface); 
            padding: 40px 20px; 
            border-radius: var(--radius-lg); 
        }
        .download-text { margin-bottom: 25px; color: var(--text-secondary); }

        .payment-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 16px; 
            max-width: 900px; 
            margin: 0 auto; 
        }
        .payment-card { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            text-align: center; 
        }
        .payment-card i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 12px; }
        .payment-card strong { display: block; margin-bottom: 8px; }
        .payment-card p { margin: 0; font-size: 0.85rem; color: var(--text-muted); }

        .guide-list { display: grid; gap: 20px; max-width: 800px; margin: 0 auto; }
        .guide-item { 
            background: var(--bg-surface); 
            padding: 20px; 
            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: grid; gap: 20px; max-width: 800px; margin: 0 auto; }
        .announcement-card { 
            background: var(--bg-elevated); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            display: flex; 
            gap: 15px; 
            border: 1px solid var(--border-default); 
        }
        .announcement-card i { color: var(--brand-accent); margin-top: 4px; }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-container { max-width: 800px; margin: 0 auto; }
        details { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius-md); margin-bottom: 12px; }
        summary { padding: 16px; cursor: pointer; list-style: none; outline: none; display: flex; justify-content: space-between; align-items: center; }
        summary::-webkit-details-marker { display: none; }
        summary h3 { margin: 0; font-size: 1.1rem; text-align: left; }
        .faq-answer { padding: 0 16px 16px; color: var(--text-secondary); border-top: 1px solid var(--border-default); padding-top: 12px; }

        .about-section { max-width: 800px; margin: 0 auto; text-align: center; }
        .team-card { 
            background: var(--bg-elevated); 
            padding: 30px; 
            border-radius: var(--radius-lg); 
            margin-top: 30px; 
            border: 1px solid var(--border-brand); 
            text-align: left; 
        }

        .security-section { 
            max-width: 800px; 
            margin: 0 auto; 
            background: var(--bg-surface); 
            padding: 30px; 
            border-radius: var(--radius-md); 
            text-align: center; 
        }
        .rg-links { display: flex; justify-content: center; gap: 20px; margin: 20px 0; flex-wrap: wrap; }

        footer { 
            background: var(--bg-surface); 
            padding: 40px 0 20px; 
            border-top: 1px solid var(--border-strong); 
            margin-top: 60px; 
            text-align: center; 
        }
        .footer-sitemap { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 15px; 
            max-width: 900px; 
            margin: 0 auto 30px; 
            text-align: center; 
        }
        .footer-contact { margin-bottom: 20px; font-size: 0.9rem; }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); max-width: 700px; margin: 0 auto; }

        .navigator { 
            position: fixed; 
            inset-inline: 0; 
            bottom: 0; 
            background: var(--bg-surface); 
            border-top: 1px solid var(--border-default); 
            display: flex; 
            justify-content: space-around; 
            padding: 10px 0 calc(10px + env(safe-area-inset-bottom)); 
            z-index: 2000; 
            backdrop-filter: blur(10px);
        }
        .nav-item { 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            text-decoration: none; 
            color: var(--text-muted); 
            font-size: 0.7rem; 
            gap: 4px; 
        }
        .nav-item i { font-size: 1.2rem; }
        .nav-item:hover { color: var(--brand-accent); }

        .utility-link { display: block; text-align: center; margin-top: 15px; font-weight: 600; color: var(--brand-accent); }

        @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; }
            .hero-section { padding: 80px 40px; }
        }

        @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(7, 1fr); }
        }