:root {
            --brand-primary: #0F172A;
            --brand-primary-hover: #1E293B;
            --brand-secondary: #CBD5E1;
            --brand-secondary-hover: #E2E8F0;
            --brand-accent: #00F5FF;
            --bg-main: #020617;
            --bg-surface: #0F172A;
            --bg-elevated: #1E293B;
            --bg-overlay: rgba(2, 6, 23, 0.75);
            --text-primary: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-brand-contrast: #020617;
            --text-link: #00F5FF;
            --text-link-hover: #7DD3C7;
            --btn-bg: #00F5FF;
            --btn-text: #020617;
            --btn-hover-bg: #7DD3C7;
            --btn-hover-text: #020617;
            --semantic-success: #10B981;
            --semantic-error: #EF4444;
            --semantic-warning: #F59E0B;
            --semantic-info: #3B82F6;
            --border-default: #1E293B;
            --border-strong: #334155;
            --border-brand: rgba(0, 245, 255, 0.4);
            --radius-sm: 4px;
            --radius-md: 12px;
            --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, 0.5);
            --grad-brand: linear-gradient(135deg, #00F5FF 0%, #3B82F6 100%);
            --grad-hero: radial-gradient(circle at top right, #1E293B, #020617);
            --grad-button: linear-gradient(to bottom right, #00F5FF, #00D1D8);
        }
        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);
        }
        img, video, iframe { max-width: 100%; height: auto; display: block; }
        a { color: var(--text-link); text-decoration: none; transition: color 0.3s 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 18px;
            border-radius: var(--radius-md);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            text-align: center;
            text-decoration: none;
        }
        .btn-primary { background: var(--grad-button); color: var(--btn-text); box-shadow: var(--shadow-glow); }
        .btn-primary:hover { background: var(--btn-hover-bg); color: var(--btn-hover-text); transform: translateY(-2px); }
        .btn-outline { background: transparent; border: 1px solid var(--brand-accent); color: var(--brand-accent); }
        .btn-outline:hover { background: var(--brand-accent); color: var(--btn-text); }
        
        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            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: normal; color: var(--text-primary); }
        .header-actions { display: flex; gap: 12px; }

        main { width: 100%; }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin-bottom: 1rem; color: var(--text-primary); }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2.5rem; margin-bottom: 1.25rem; color: var(--text-primary); }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin-bottom: 0.75rem; color: var(--text-primary); }

        .hero-section {
            background: var(--grad-hero);
            padding: 40px 20px;
            border-radius: var(--radius-lg);
            text-align: center;
            margin-bottom: 24px;
        }
        .hero-intro-text { margin-bottom: 24px; color: var(--text-secondary); max-width: 800px; margin-inline: auto; }
        .hero-cta-wrapper { margin-bottom: 24px; }
        .hero-cta-wrapper .btn-primary { width: 100%; font-size: 1.25rem; }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
        .hero-tag { 
            background: rgba(0, 245, 255, 0.1); 
            border: 1px solid var(--border-brand); 
            padding: 6px 12px; 
            border-radius: var(--radius-pill); 
            font-size: 0.85rem; 
            color: var(--brand-accent); 
        }

        .banner-container { margin-bottom: 24px; }
        .banner-container img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; border-radius: var(--radius-md); }

        .category-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 16px; 
            margin-bottom: 32px; 
        }
        .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;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .category-tile:hover { border-color: var(--brand-accent); background: var(--bg-elevated); transform: translateY(-4px); }
        .category-tile i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 8px; }
        .category-tile strong { display: block; color: var(--text-primary); margin-bottom: 4px; }
        .category-tile span { font-size: 0.85rem; color: var(--text-secondary); }

        .game-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 16px; 
        }
        .game-card { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            border-radius: var(--radius-md); 
            overflow: hidden; 
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .game-card:hover { border-color: var(--brand-accent); transform: scale(1.02); box-shadow: var(--shadow-card); }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card-info { padding: 12px; text-align: center; }
        .game-card-info h3 { margin: 0; font-size: 1rem; color: var(--text-primary); }

        .facts-container { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-brand); 
            border-radius: var(--radius-md); 
            padding: 24px; 
            margin-bottom: 24px; 
        }
        .freshness-notice { font-style: italic; color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 16px; display: block; }
        .facts-table { width: 100%; border-collapse: collapse; }
        .facts-table tr { border-bottom: 1px solid var(--border-default); }
        .facts-table td { padding: 12px 8px; vertical-align: middle; }
        .facts-table td:first-child { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .facts-table td:last-child { color: var(--text-primary); }
        .terms-link-wrapper { margin-top: 12px; font-size: 0.85rem; text-align: center; }
        .terms-link { color: var(--text-muted); font-style: italic; }

        .toc-navigator { 
            display: flex; 
            overflow-x: auto; 
            gap: 12px; 
            padding: 16px 0; 
            margin-bottom: 32px; 
            scrollbar-width: none; 
        }
        .toc-navigator::-webkit-scrollbar { display: none; }
        .toc-link { 
            background: var(--bg-elevated); 
            padding: 8px 16px; 
            border-radius: var(--radius-pill); 
            white-space: nowrap; 
            font-size: 0.9rem; 
            border: 1px solid var(--border-default); 
        }
        .toc-link:hover { background: var(--brand-primary-hover); border-color: var(--brand-accent); }

        .promo-section { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
        .promo-card { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            border-radius: var(--radius-md); 
            padding: 24px; 
            display: flex; 
            flex-direction: column; 
            gap: 16px; 
            position: relative;
            overflow: hidden;
        }
        .promo-card::before { 
            content: ""; 
            position: absolute; 
            top: 0; left: 0; width: 4px; height: 100%; 
            background: var(--brand-accent); 
        }

        .usp-bar { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: 32px; }
        .usp-tile { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            display: flex; 
            gap: 16px; 
            align-items: flex-start; 
        }
        .usp-tile i { font-size: 1.5rem; color: var(--brand-accent); margin-top: 4px; }
        .usp-tile-content strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
        .usp-tile-content p { margin: 0; font-size: 0.9rem; color: var(--text-secondary); }

        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-bottom: 32px; }
        .payment-card { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            text-align: center; 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            gap: 12px; 
        }
        .payment-card i { font-size: 2rem; color: var(--brand-accent); }
        .payment-card strong { display: block; color: var(--text-primary); }
        .payment-card p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

        .guide-steps { display: grid; grid-template-columns: 1fr; gap: 20px; margin-bottom: 32px; }
        .guide-step { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            display: flex; 
            gap: 16px; 
            align-items: center; 
        }
        .step-number { 
            background: var(--brand-accent); 
            color: var(--btn-text); 
            width: 36px; 
            height: 36px; 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: bold; 
            flex-shrink: 0; 
        }
        .guide-step-content h3 { margin: 0 0 8px 0; }
        .guide-step-content a { color: inherit; text-decoration: none; }

        .mobile-section { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 24px; 
            border-radius: var(--radius-md); 
            text-align: center; 
            margin-bottom: 32px; 
        }
        .mobile-section p { margin-bottom: 24px; color: var(--text-secondary); }

        .player-guides { display: grid; grid-template-columns: 1fr; gap: 20px; margin-bottom: 32px; }
        .guide-item { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 20px; 
            border-radius: var(--radius-md); 
        }
        .guide-item .meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 12px; display: block; }

        .announcements { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: 32px; }
        .announcement-card { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 16px; 
            border-radius: var(--radius-md); 
            display: flex; 
            gap: 16px; 
        }
        .announcement-card i { color: var(--brand-accent); font-size: 1.2rem; margin-top: 4px; }
        .announcement-info h3 { margin: 0 0 8px 0; font-size: 1.1rem; }
        .announcement-info 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-container { display: grid; grid-template-columns: 1fr; gap: 12px; margin-bottom: 32px; }
        .faq-item { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius-md); }
        .faq-item summary { padding: 16px; cursor: pointer; list-style: none; outline: none; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary h3 { margin: 0; font-size: 1.1rem; color: var(--text-primary); display: flex; justify-content: space-between; align-items: center; }
        .faq-item summary h3::after { content: "\f078"; font-family: "Font Awesome 6 Free"; font-weight: 900; font-size: 0.9rem; transition: transform 0.3s; }
        .faq-item[open] summary h3::after { transform: rotate(180deg); }
        .faq-answer { padding: 0 16px 16px 16px; color: var(--text-secondary); font-size: 0.95rem; line-height: 1.6; }

        .about-section { background: var(--bg-surface); border: 1px solid var(--border-default); padding: 24px; border-radius: var(--radius-md); margin-bottom: 32px; }
        .team-card { 
            background: var(--bg-elevated); 
            border: 1px solid var(--border-brand); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            margin-top: 24px; 
        }

        .security-section { background: var(--bg-surface); border: 1px solid var(--border-default); padding: 24px; border-radius: var(--radius-md); margin-bottom: 32px; }
        .rg-links { display: flex; flex-wrap: wrap; gap: 12px; margin: 16px 0; }
        .rg-link { background: var(--bg-elevated); padding: 8px 16px; border-radius: var(--radius-md); font-size: 0.9rem; border: 1px solid var(--border-default); }

        footer { 
            background: var(--bg-surface); 
            padding: 40px 0 20px 0; 
            border-top: 1px solid var(--border-default); 
            text-align: center; 
        }
        .footer-sitemap { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 12px; 
            max-width: 800px; 
            margin: 0 auto 32px auto; 
            text-align: center; 
        }
        .footer-sitemap a { font-size: 0.9rem; color: var(--text-secondary); }
        .footer-contact { margin-bottom: 24px; color: var(--text-secondary); font-size: 0.95rem; }
        .footer-legal { font-size: 0.85rem; color: var(--text-muted); line-height: 1.5; max-width: 700px; margin: 0 auto; }

        .navigator { 
            position: fixed; 
            inset-inline: 0; 
            bottom: 0; 
            background: rgba(15, 23, 42, 0.95); 
            backdrop-filter: blur(10px); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            padding: 12px 0 calc(12px + env(safe-area-inset-bottom)); 
            border-top: 1px solid var(--border-brand); 
            z-index: 1000; 
        }
        .nav-item { display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--text-secondary); text-decoration: none; font-size: 0.75rem; }
        .nav-item i { font-size: 1.2rem; }
        .nav-item:hover { color: var(--brand-accent); }

        .util-more-link { display: block; text-align: center; margin-top: 16px; font-weight: 600; }

        @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); }
            .guide-steps { grid-template-columns: repeat(2, 1fr); }
            .player-guides { grid-template-columns: repeat(3, 1fr); }
            .announcements { grid-template-columns: repeat(2, 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); }
            .guide-steps { grid-template-columns: repeat(4, 1fr); }
            .player-guides { grid-template-columns: repeat(3, 1fr); }
        }
        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }