:root {
            --brand-primary: #0A2540;
            --brand-primary-hover: #143B61;
            --brand-secondary: #C0C0C8;
            --brand-secondary-hover: #E0E0E8;
            --brand-accent: #00F5FF;
            --bg-main: #050C16;
            --bg-surface: #0B1728;
            --bg-elevated: #13223B;
            --bg-overlay: rgba(5, 12, 22, 0.8);
            --text-primary: #E6EEF5;
            --text-secondary: #A3B1C2;
            --text-muted: #6B7B8E;
            --text-brand-contrast: #050C16;
            --text-link: #00F5FF;
            --text-link-hover: #80FFFF;
            --btn-bg: #00F5FF;
            --btn-text: #050C16;
            --btn-hover-bg: #80FFFF;
            --semantic-success: #00E676;
            --semantic-error: #FF5252;
            --semantic-warning: #FFD740;
            --semantic-info: #40C4FF;
            --border-default: #1E2D44;
            --border-strong: #2C3E5A;
            --border-brand: rgba(0, 245, 255, 0.4);
            --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, 0.6);
            --grad-brand: linear-gradient(135deg, #0A2540 0%, #00F5FF 100%);
            --grad-hero: radial-gradient(circle at top right, #13223B 0%, #050C16 100%);
            --grad-btn: linear-gradient(180deg, #00F5FF 0%, #00D1DD 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, .cta {
            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: transform 0.2s ease, background 0.2s ease;
            border: none;
            text-align: center;
        }
        .btn-primary { background: var(--grad-btn); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-hover-bg); transform: translateY(-2px); }
        .btn-secondary { background: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--border-brand); }
        .btn-secondary:hover { background: var(--border-strong); }
        
        h1, h2, h3 { font-family: 'Be Vietnam Pro', 'Sora', sans-serif; color: var(--text-primary); margin: 0; }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin-bottom: 1.5rem; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2.5rem; margin-bottom: 1.25rem; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin-bottom: 0.75rem; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(5, 12, 22, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-default);
        }
        .header-brand { display: flex; align-items: center; gap: 10px; }
        .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-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }
        .hero-intro { max-width: 700px; margin: 0 auto 2rem auto; font-size: 1.1rem; color: var(--text-secondary); }
        .hero-cta-wrapper { margin-bottom: 2rem; }
        .hero-cta { width: 100%; max-width: 400px; font-size: 1.2rem; }
        .hero-tags { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
        .hero-tag {
            background: rgba(0, 245, 255, 0.1);
            border: 1px solid var(--border-brand);
            color: var(--brand-accent);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 500;
        }

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

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin: 2rem 0;
        }
        .category-tile {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .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); }
        .category-tile strong { display: block; font-size: 1.1rem; color: var(--text-primary); }
        .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-radius: var(--radius-md);
            border: 1px solid var(--border-default);
            overflow: hidden;
            transition: transform 0.2s ease, border-color 0.2s ease;
            text-decoration: none;
        }
        .game-card:hover { transform: scale(1.03); border-color: var(--brand-accent); }
        .game-card img { aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { padding: 12px; font-size: 1rem; text-align: center; color: var(--text-primary); margin: 0; }

        .facts-wrapper { background: var(--bg-surface); border-radius: var(--radius-md); padding: 24px; border: 1px solid var(--border-default); margin: 2rem 0; }
        .freshness-notice { font-style: italic; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1.5rem; 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); }
        .terms-link-wrap { margin-top: 1rem; text-align: center; }
        .terms-link { font-size: 0.85rem; color: var(--text-muted); }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 16px 0;
            margin-bottom: 2rem;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            background: var(--bg-elevated);
            border: 1px solid var(--border-default);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .toc-link:hover { border-color: var(--brand-accent); color: var(--brand-accent); }

        .promo-grid { display: flex; flex-direction: column; gap: 20px; }
        .promo-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-default);
            position: relative;
            overflow: hidden;
        }
        .promo-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 4px; height: 100%;
            background: var(--brand-accent);
        }
        .promo-card h3 { margin-bottom: 1rem; }
        .promo-card p { color: var(--text-secondary); margin-bottom: 1.5rem; }

        .usp-grid { display: flex; flex-direction: column; gap: 16px; margin: 2rem 0; }
        .usp-tile {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }
        .usp-tile i { font-size: 1.5rem; color: var(--brand-accent); min-width: 30px; text-align: center; }
        .usp-tile strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
        .usp-tile span { font-size: 0.9rem; color: var(--text-secondary); }

        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .pay-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .pay-card i { font-size: 1.5rem; color: var(--brand-accent); }
        .pay-card strong { display: block; font-size: 0.95rem; }
        .pay-card p { font-size: 0.8rem; color: var(--text-secondary); margin: 0; }

        .guide-steps { display: flex; flex-direction: column; gap: 24px; }
        .guide-step { display: flex; gap: 20px; align-items: flex-start; }
        .step-num {
            background: var(--brand-accent);
            color: var(--btn-text);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }
        .guide-step h3 a { color: inherit; text-decoration: none; }

        .download-section {
            background: var(--bg-surface);
            padding: 32px 24px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--border-brand);
            margin: 2rem 0;
        }
        .download-content { max-width: 600px; margin: 0 auto 2rem auto; }

        .player-guides { display: flex; flex-direction: column; gap: 20px; }
        .guide-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }
        .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: 16px;
            background: var(--bg-surface);
            padding: 16px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }
        .announcement-item i { color: var(--brand-accent); margin-top: 4px; }
        .announcement-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .announcement-body p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 8px; }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); }

        .faq-list { display: flex; flex-direction: column; gap: 12px; }
        .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; display: flex; align-items: center; justify-content: space-between; }
        .faq-item summary h3 { font-size: 1.05rem; margin: 0; pointer-events: none; }
        .faq-item p { padding: 0 16px 16px 16px; color: var(--text-secondary); margin: 0; font-size: 0.95rem; }

        .about-section { background: var(--bg-surface); padding: 32px 24px; border-radius: var(--radius-lg); border: 1px solid var(--border-default); }
        .team-card {
            margin-top: 2rem;
            padding: 20px;
            background: var(--bg-elevated);
            border-radius: var(--radius-md);
            border-left: 4px solid var(--brand-accent);
        }
        .team-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
        .team-card p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 8px; }

        .security-section { padding: 24px; background: var(--bg-elevated); border-radius: var(--radius-md); border: 1px solid var(--border-default); }
        .security-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-bottom: 1.5rem; }
        .security-box { padding: 16px; background: var(--bg-surface); border-radius: var(--radius-sm); border: 1px solid var(--border-default); font-size: 0.9rem; }

        footer {
            margin-top: 4rem;
            padding: 40px 0;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-bottom: 2rem;
            text-align: center;
        }
        .footer-sitemap a { font-size: 0.9rem; color: var(--text-secondary); }
        .footer-contact { margin-bottom: 1.5rem; color: var(--text-secondary); }
        .footer-contact a { color: var(--brand-accent); font-weight: 600; }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); line-height: 1.4; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--bg-surface);
            border-top: 1px solid var(--border-default);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 1000;
            backdrop-filter: blur(15px);
        }
        .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); }

        .utility-link { display: block; text-align: center; margin-top: 1.5rem; font-weight: 600; color: var(--brand-accent); }

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

        @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(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .guide-steps { flex-direction: row; flex-wrap: wrap; }
            .guide-step { width: calc(50% - 12px); }
            .navigator { position: static; height: auto; border: none; background: none; display: none; }
            .footer-sitemap { grid-template-columns: repeat(5, 1fr); }
            .promo-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
            .promo-card { height: 100%; }
        }

        @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); }
        }