:root {
            --brand-primary: #0D2B52;
            --brand-primary-hover: #163D75;
            --brand-secondary: #C0C0C8;
            --brand-secondary-hover: #D1D1D9;
            --brand-accent: #00F5FF;
            --bg-main: #050D1A;
            --bg-surface: #0B172B;
            --bg-elevated: #12213D;
            --bg-overlay: rgba(5, 13, 26, 0.8);
            --text-primary: #E6EEF5;
            --text-secondary: #B0C4D4;
            --text-muted: #788CA6;
            --text-brand-contrast: #050D1A;
            --text-link: #00F5FF;
            --text-link-hover: #70F8FF;
            --btn-bg: #00F5FF;
            --btn-text: #050D1A;
            --btn-hover-bg: #70F8FF;
            --btn-hover-text: #050D1A;
            --semantic-success: #00E676;
            --semantic-error: #FF5252;
            --semantic-warning: #FFD740;
            --semantic-info: #40C4FF;
            --border-default: #1C2E4A;
            --border-strong: #2D456B;
            --border-brand: #00F5FF;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --radius-pill: 9999px;
            --shadow-card: 0 4px 0 #000000;
            --shadow-elevated: 0 8px 16px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 15px rgba(0, 245, 255, 0.4);
            --grad-brand: linear-gradient(135deg, #0D2B52 0%, #00F5FF 100%);
            --grad-hero: linear-gradient(180deg, #0B172B 0%, #050D1A 100%);
            --grad-btn: linear-gradient(to bottom, #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, .cta-btn {
            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: 700;
            text-align: center;
            cursor: pointer;
            transition: transform 0.1s ease, background 0.2s ease;
            border: none;
            text-decoration: none;
        }
        .cta-primary {
            background: var(--grad-btn);
            color: var(--btn-text);
            box-shadow: var(--shadow-glow);
        }
        .cta-primary:hover { background: var(--btn-hover-bg); transform: translateY(-2px); }
        .cta-secondary {
            background: var(--bg-elevated);
            color: var(--text-primary);
            border: 1px solid var(--border-brand);
        }
        .cta-secondary:hover { background: var(--brand-primary-hover); }

        h1, h2, h3 {
            font-family: 'Archivo Black', 'Be Vietnam Pro', sans-serif;
            font-weight: 900;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            line-height: 1.1;
            text-transform: uppercase;
            font-style: italic;
            background: var(--grad-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); margin-bottom: 1rem; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); margin-top: 2.5rem; margin-bottom: 1.5rem; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); margin-top: 1rem; margin-bottom: 0.5rem; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 2px solid var(--border-default);
            margin-bottom: 20px;
        }
        .header-brand {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-brand strong {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-primary);
        }
        .header-actions {
            display: flex;
            gap: 10px;
        }

        main { width: 100%; }

        .hero-panel {
            text-align: center;
            padding: 2rem 0;
            background: var(--grad-hero);
        }
        .hero-intro {
            margin-bottom: 2rem;
            max-width: 800px;
            margin-inline: auto;
            color: var(--text-secondary);
        }
        .hero-cta {
            width: 100%;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .hero-tag {
            background: var(--bg-elevated);
            color: var(--brand-accent);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            border: 1px solid var(--border-strong);
        }

        .banner-link {
            display: block;
            width: 100%;
            margin: 20px 0;
        }
        .banner-img {
            width: 100%;
            aspect-ratio: 2 / 1;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 30px;
        }
        .cat-tile {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--border-default);
            transition: border-color 0.2s ease;
        }
        .cat-tile:hover { border-color: var(--brand-accent); }
        .cat-icon { font-size: 2rem; color: var(--brand-accent); margin-bottom: 10px; display: block; }
        .cat-title { display: block; margin-bottom: 5px; color: var(--text-primary); font-size: 1.1rem; }
        .cat-desc { font-size: 0.85rem; color: var(--text-muted); line-height: 1.4; }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-default);
            transition: transform 0.2s ease;
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--brand-accent); }
        .game-thumb { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-info { padding: 12px; text-align: center; }
        .game-info h3 { font-size: 1rem; font-style: normal; text-transform: none; background: none; -webkit-text-fill-color: var(--text-primary); }

        .facts-container {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            padding: 20px;
            border: 1px solid var(--border-strong);
            margin-bottom: 20px;
        }
        .freshness-notice {
            font-style: italic;
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 15px;
            display: block;
        }
        .facts-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 15px;
        }
        .facts-table td {
            padding: 12px;
            border-bottom: 1px solid var(--border-default);
            font-size: 0.95rem;
        }
        .facts-label { color: var(--text-secondary); font-weight: 500; width: 40%; }
        .facts-value { color: var(--text-primary); text-align: right; }
        .terms-footer {
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 10px;
            padding: 10px 0;
            margin-bottom: 25px;
            scrollbar-width: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            background: var(--bg-elevated);
            white-space: nowrap;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            border: 1px solid var(--border-default);
        }

        .promo-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .promo-card {
            background: var(--bg-surface);
            padding: 25px;
            border-radius: var(--radius-lg);
            border-left: 5px solid var(--brand-accent);
            box-shadow: var(--shadow-elevated);
        }
        .promo-card h3 { margin-top: 0; }
        .promo-body { color: var(--text-secondary); margin-bottom: 20px; }

        .usp-bar {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin-bottom: 30px;
        }
        .usp-tile {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            display: flex;
            gap: 15px;
            align-items: flex-start;
            border: 1px solid var(--border-default);
        }
        .usp-icon { font-size: 1.5rem; color: var(--brand-accent); }
        .usp-content strong { display: block; color: var(--text-primary); margin-bottom: 5px; }
        .usp-content p { margin: 0; font-size: 0.9rem; color: var(--text-muted); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .pay-card {
            background: var(--bg-surface);
            padding: 15px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--border-default);
        }
        .pay-icon { font-size: 1.8rem; color: var(--brand-accent); margin-bottom: 10px; display: block; }
        .pay-name { display: block; font-weight: 600; margin-bottom: 8px; }
        .pay-desc { font-size: 0.8rem; color: var(--text-muted); }

        .guide-steps { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .step-card {
            display: flex;
            gap: 15px;
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            align-items: flex-start;
        }
        .step-num {
            background: var(--grad-brand);
            color: var(--btn-text);
            min-width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
        }
        .step-content h3 { margin-top: 0; font-style: normal; text-transform: none; background: none; -webkit-text-fill-color: var(--text-primary); }
        .step-content a { color: inherit; text-decoration: underline; }

        .download-section {
            background: var(--bg-surface);
            padding: 30px 20px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 2px dashed var(--border-strong);
        }

        .player-guide-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            margin-bottom: 15px;
            border: 1px solid var(--border-default);
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; display: block; }

        .announcement-list { display: grid; grid-template-columns: 1fr; gap: 15px; }
        .announcement-item {
            background: var(--bg-elevated);
            padding: 15px;
            border-radius: var(--radius-lg);
            display: flex;
            gap: 15px;
        }
        .ann-icon { color: var(--brand-accent); font-size: 1.2rem; margin-top: 4px; }
        .ann-text h3 { font-size: 1.1rem; margin-bottom: 8px; background: none; -webkit-text-fill-color: var(--text-primary); font-style: normal; text-transform: none; }
        .ann-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-item {
            background: var(--bg-surface);
            margin-bottom: 12px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-default);
            overflow: hidden;
        }
        .faq-item summary { padding: 15px; cursor: pointer; list-style: none; }
        .faq-item summary h3 { margin: 0; font-style: normal; text-transform: none; background: none; -webkit-text-fill-color: var(--text-primary); font-size: 1.05rem; }
        .faq-answer { padding: 0 15px 15px 15px; color: var(--text-secondary); font-size: 0.95rem; }

        .about-panel {
            background: var(--bg-surface);
            padding: 25px;
            border-radius: var(--radius-lg);
            margin-bottom: 20px;
        }
        .team-card {
            background: var(--bg-elevated);
            padding: 20px;
            border-radius: var(--radius-lg);
            margin-top: 20px;
            border: 1px solid var(--border-strong);
        }

        .security-section {
            background: var(--bg-surface);
            padding: 25px;
            border-radius: var(--radius-lg);
            border-top: 4px solid var(--brand-accent);
        }

        footer {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid var(--border-default);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .footer-sitemap a { font-size: 0.85rem; color: var(--text-secondary); }
        .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: var(--bg-surface);
            border-top: 1px solid var(--border-strong);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 1000;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            color: var(--text-secondary);
            font-size: 0.75rem;
            text-decoration: none;
        }
        .nav-item i { font-size: 1.3rem; }
        .nav-item:hover { color: var(--brand-accent); }

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

        @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); }
            .usp-bar { grid-template-columns: repeat(3, 1fr); }
            .navigator { position: static; height: auto; padding: 0; display: none; }
            footer { padding-bottom: 24px; }
        }

        @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); }
        }

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