:root {
            --brand-primary: #0D2A5F;
            --brand-primary-hover: #153C8A;
            --brand-secondary: #C0C0C8;
            --brand-secondary-hover: #E2E2E9;
            --brand-accent: #00F5FF;
            --bg-main: #060E1C;
            --bg-surface: #0C172B;
            --bg-elevated: #15223D;
            --bg-overlay: rgba(6, 14, 28, 0.8);
            --text-primary: #E6F1FF;
            --text-secondary: #AAB8D1;
            --text-muted: #7888A5;
            --text-brand-contrast: #060E1C;
            --text-link: #00F5FF;
            --text-link-hover: #70F8FF;
            --btn-bg: #00F5FF;
            --btn-text: #060E1C;
            --btn-bg-hover: #70F8FF;
            --btn-text-hover: #060E1C;
            --border-default: #1E2F4D;
            --border-strong: #2C416B;
            --border-brand: #00F5FF;
            --radius-sm: 6px;
            --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, 0.4);
            --grad-brand: linear-gradient(135deg, #0D2A5F 0%, #00F5FF 100%);
            --grad-hero: radial-gradient(circle at top right, #15223D 0%, #060E1C 100%);
            --grad-btn: linear-gradient(180deg, #00F5FF 0%, #00D1DC 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;
            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 0.2s ease; }
        a:hover { color: var(--text-link-hover); }
        
        .btn-base, .cta-base { 
            min-height: 44px; 
            min-inline-size: 44px; 
            padding: 12px 24px; 
            border-radius: var(--radius-md); 
            display: inline-flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: 600; 
            cursor: pointer; 
            transition: all 0.3s ease; 
            border: none;
            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); box-shadow: var(--shadow-glow); }
        .btn-outline { border: 1px solid var(--border-brand); color: var(--brand-accent); background: transparent; }
        .btn-outline:hover { background: rgba(0, 245, 255, 0.1); }

        h1 { font-family: 'Be Vietnam Pro', sans-serif; font-size: clamp(1.6rem, 6.5vw, 2.5rem); line-height: 1.2; font-weight: 700; margin-bottom: 1rem; color: var(--text-primary); }
        h2 { font-family: 'Be Vietnam Pro', sans-serif; font-size: clamp(1.3rem, 5.2vw, 2rem); line-height: 1.25; margin-top: 2.5rem; margin-bottom: 1.5rem; font-weight: 700; color: var(--text-primary); }
        h3 { font-family: 'Be Vietnam Pro', sans-serif; font-size: clamp(1.05rem, 4.2vw, 1.5rem); line-height: 1.3; font-weight: 600; margin-bottom: 0.75rem; color: var(--text-primary); }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            background: var(--bg-surface);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-default);
        }
        .header-brand { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--text-primary); }
        .header-brand strong { font-size: 16px; font-weight: 400; }
        .header-actions { display: flex; gap: 12px; }

        main { width: 100%; }

        .hero-section {
            padding: 40px 0;
            background: var(--grad-hero);
            text-align: center;
            border-bottom: 1px solid var(--border-default);
        }
        .hero-intro-text { max-width: 800px; margin: 0 auto 24px; color: var(--text-secondary); }
        .hero-cta-full { display: block; width: 100%; max-width: 400px; margin: 0 auto 24px; }
        .hero-tags { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
        .hero-tag { background: var(--bg-elevated); color: var(--brand-accent); padding: 4px 12px; border-radius: var(--radius-pill); font-size: 0.875rem; border: 1px solid var(--border-strong); }

        .banner-link { display: block; width: 100%; aspect-ratio: 2 / 1; overflow: hidden; }
        .banner-img { width: 100%; height: 100%; object-fit: cover; }

        .category-hub { padding: 40px 0; }
        .category-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 16px; 
        }
        .category-tile { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            text-align: center; 
            transition: transform 0.2s ease, border-color 0.2s ease; 
            text-decoration: none;
            color: var(--text-primary);
        }
        .category-tile:hover { transform: translateY(-5px); border-color: var(--brand-accent); }
        .category-tile i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 12px; display: block; }
        .category-tile strong { display: block; font-size: 1.1rem; margin-bottom: 8px; }
        .category-tile span { font-size: 0.875rem; 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: border-color 0.3s ease; 
            text-decoration: none; 
            color: var(--text-primary);
        }
        .game-card:hover { border-color: var(--brand-accent); }
        .game-card-img { aspect-ratio: 1 / 1; object-fit: cover; width: 100%; }
        .game-card-info { padding: 12px; text-align: center; }
        .game-card-info h3 { font-size: 1rem; margin: 0; }

        .facts-wrapper { background: var(--bg-surface); padding: 24px; border-radius: var(--radius-lg); border: 1px solid var(--border-strong); }
        .facts-notice { font-style: italic; color: var(--text-muted); font-size: 0.875rem; 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 0; }
        .facts-label { color: var(--text-secondary); font-weight: 500; width: 40%; }
        .facts-value { color: var(--text-primary); text-align: right; }
        .facts-footer-link { display: block; text-align: center; margin-top: 16px; font-size: 0.875rem; color: var(--text-muted); }

        .toc-nav { 
            display: flex; 
            overflow-x: auto; 
            gap: 12px; 
            padding: 16px 0; 
            scrollbar-width: none; 
            -ms-overflow-style: 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: 0.875rem; 
            border: 1px solid var(--border-default); 
        }

        .promo-card { 
            background: var(--bg-surface); 
            border: 1px solid var(--border-default); 
            padding: 24px; 
            border-radius: var(--radius-md); 
            margin-bottom: 16px; 
            display: flex; 
            flex-direction: column; 
        }
        .promo-card h3 { margin-top: 0; }
        .promo-card p { color: var(--text-secondary); margin-bottom: 20px; }

        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .usp-tile { 
            background: var(--bg-elevated); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            display: flex; 
            gap: 16px; 
            align-items: flex-start; 
            border-left: 4px solid var(--brand-accent);
        }
        .usp-tile i { font-size: 1.5rem; color: var(--brand-accent); margin-top: 4px; }
        .usp-content strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
        .usp-content p { margin: 0; font-size: 0.875rem; color: var(--text-secondary); }

        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .payment-card { 
            background: var(--bg-surface); 
            padding: 16px; 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-default); 
            text-align: center; 
        }
        .payment-card i { font-size: 1.5rem; color: var(--brand-accent); margin-bottom: 8px; display: block; }
        .payment-card strong { display: block; font-size: 0.9rem; margin-bottom: 8px; }
        .payment-card p { font-size: 0.75rem; color: var(--text-muted); margin: 0; line-height: 1.4; }

        .guide-steps { display: grid; grid-template-columns: 1fr; gap: 24px; }
        .guide-step { display: flex; gap: 16px; }
        .step-badge { 
            min-width: 36px; 
            height: 36px; 
            background: var(--brand-accent); 
            color: var(--btn-text); 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: 700; 
        }
        .guide-step h3 a { color: inherit; text-decoration: none; }

        .app-section { 
            background: var(--bg-surface); 
            padding: 32px; 
            border-radius: var(--radius-lg); 
            text-align: center; 
            border: 1px solid var(--border-strong); 
        }

        .player-guide-item { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: var(--radius-md); 
            margin-bottom: 16px; 
            border: 1px solid var(--border-default); 
        }
        .guide-meta { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 12px; display: block; }

        .announcement-item { 
            display: flex; 
            gap: 16px; 
            background: var(--bg-surface); 
            padding: 16px; 
            border-radius: var(--radius-md); 
            margin-bottom: 12px; 
            border: 1px solid var(--border-default); 
        }
        .announcement-item i { color: var(--brand-accent); margin-top: 4px; }
        .announcement-date { font-size: 0.75rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-item { background: var(--bg-surface); border-radius: var(--radius-md); margin-bottom: 12px; border: 1px solid var(--border-default); }
        .faq-item summary { padding: 16px; cursor: pointer; list-style: none; }
        .faq-item summary h3 { margin: 0; font-size: 1.1rem; }
        .faq-answer { padding: 0 16px 16px; color: var(--text-secondary); font-size: 0.9rem; }

        .trust-card { 
            background: var(--bg-elevated); 
            padding: 24px; 
            border-radius: var(--radius-md); 
            border: 1px solid var(--border-brand); 
            margin-top: 24px; 
        }

        .rg-footer-section { 
            padding: 32px 0; 
            border-top: 1px solid var(--border-default); 
            text-align: center; 
        }
        .rg-links { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; }
        .rg-link { font-size: 0.875rem; color: var(--text-secondary); text-decoration: underline; }

        footer { 
            background: var(--bg-surface); 
            padding: 40px 0 20px; 
            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; 
            text-align: left; 
        }
        .footer-sitemap a { font-size: 0.875rem; color: var(--text-secondary); }
        .footer-contact { margin-bottom: 24px; font-size: 0.875rem; }
        .footer-legal { font-size: 0.75rem; 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: 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: 1.25rem; }
        .nav-item:hover { color: var(--brand-accent); }

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

        @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(2, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .guide-steps { 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(7, 1fr); }
            .guide-steps { grid-template-columns: repeat(4, 1fr); }
        }