:root {
            --brand-primary: #0A2647;
            --brand-primary-hover: #143B6D;
            --brand-secondary: #C0C0C0;
            --brand-accent: #00F5FF;
            --bg-main: #050C1A;
            --bg-surface: #0D172B;
            --bg-elevated: #16223D;
            --text-primary: #E6F1FF;
            --text-secondary: #B0C4DE;
            --text-muted: #708090;
            --btn-bg: #00F5FF;
            --btn-text: #050C1A;
            --btn-hover-bg: #7DFFFF;
            --border-default: #1B2B4B;
            --border-brand: #00F5FF;
            --radius-md: 4px;
            --radius-lg: 8px;
            --shadow-card: 0 4px 0 #000000;
            --grad-brand: linear-gradient(135deg, #0A2647 0%, #00F5FF 100%);
            --grad-button: linear-gradient(to bottom, #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 { max-width: 100%; height: auto; display: block; }
        a { color: var(--brand-accent); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--btn-hover-bg); }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-block: 1rem;
            border-bottom: 1px solid var(--border-default);
        }
        .header-brand {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-brand strong {
            font-size: 16px;
            font-weight: 400;
        }
        .header-nav {
            display: flex;
            gap: 10px;
        }
        .btn-header {
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.875rem;
            background: var(--bg-elevated);
            color: var(--text-primary);
            border: 1px solid var(--border-default);
        }
        .btn-header-primary {
            background: var(--brand-accent);
            color: var(--btn-text);
            border-color: var(--brand-accent);
        }

        main { width: 100%; }

        .hero-section {
            padding-block: 2rem 0;
            text-align: center;
        }
        h1 {
            font-family: 'Barlow Condensed', sans-serif;
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            margin-bottom: 1rem;
            font-style: italic;
            text-transform: uppercase;
        }
        .hero-intro {
            max-width: 800px;
            margin: 0 auto 2rem;
            color: var(--text-secondary);
        }
        .btn-hero-cta {
            display: block;
            width: 100%;
            min-height: 48px;
            background: var(--grad-button);
            color: var(--btn-text);
            text-align: center;
            line-height: 48px;
            font-weight: 700;
            border-radius: var(--radius-lg);
            text-transform: uppercase;
            box-shadow: var(--shadow-card);
            margin-bottom: 1.5rem;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
        }
        .hero-tag {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        .banner-wrap a { display: block; line-height: 0; }
        .banner-img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }

        .cat-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            padding-block: 2rem 0;
        }
        .cat-tile {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1rem;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            transition: transform 0.2s;
        }
        .cat-tile:hover { transform: translateY(-4px); border-color: var(--brand-accent); }
        .cat-icon { font-size: 2rem; color: var(--brand-accent); margin-bottom: 8px; }
        .cat-name { font-weight: 700; display: block; color: var(--text-primary); }
        .cat-desc { font-size: 0.8rem; color: var(--text-muted); line-height: 1.4; }

        h2 {
            font-family: 'Barlow Condensed', sans-serif;
            font-size: clamp(1.3rem, 5.2vw, 1.8rem);
            line-height: 1.25;
            margin-top: 2rem;
            margin-bottom: 1.5rem;
            font-style: italic;
            border-left: 4px solid var(--brand-accent);
            padding-left: 12px;
        }
        h3 {
            font-size: clamp(1.05rem, 4.2vw, 1.25rem);
            line-height: 1.3;
            margin-bottom: 0.5rem;
        }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 2rem;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-default);
            transition: opacity 0.2s;
        }
        .game-card:hover { opacity: 0.9; }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card h3 {
            padding: 12px;
            margin: 0;
            font-size: 1rem;
            text-align: center;
            color: var(--text-primary);
        }

        .facts-wrap {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            border: 1px solid var(--border-default);
        }
        .freshness-notice {
            font-size: 0.85rem;
            font-style: italic;
            color: var(--text-muted);
            margin-bottom: 1rem;
            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; font-size: 0.9rem; }
        .facts-label { color: var(--text-muted); width: 40%; }
        .facts-value { color: var(--text-primary); font-weight: 500; }
        .terms-link {
            display: block;
            text-align: center;
            font-size: 0.8rem;
            margin-top: 1rem;
            color: var(--text-muted);
        }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding-block: 1rem;
            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: 0.85rem;
            border: 1px solid var(--border-default);
        }
        .radius-pill { border-radius: 999px; }

        .promo-list { display: flex; flex-direction: column; gap: 16px; }
        .promo-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            position: relative;
            overflow: hidden;
        }
        .promo-card::before {
            content: "";
            position: absolute;
            top: 0; left: 0; width: 4px; height: 100%;
            background: var(--brand-accent);
        }
        .promo-cta {
            display: inline-block;
            margin-top: 1rem;
            padding: 10px 20px;
            background: var(--brand-primary);
            color: var(--text-primary);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .usp-grid { display: flex; flex-direction: column; gap: 16px; }
        .usp-tile {
            display: flex;
            gap: 16px;
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            align-items: center;
            border: 1px solid var(--border-default);
        }
        .usp-icon { font-size: 2rem; color: var(--brand-accent); min-width: 48px; }
        .usp-content strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
        .usp-content p { margin: 0; font-size: 0.9rem; color: var(--text-secondary); }

        .pay-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .pay-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 1rem;
            border-radius: var(--radius-lg);
            text-align: center;
        }
        .pay-card i { font-size: 1.5rem; color: var(--brand-accent); margin-bottom: 8px; }
        .pay-card strong { display: block; margin-bottom: 8px; }
        .pay-card p { margin: 0; font-size: 0.8rem; color: var(--text-muted); line-height: 1.4; }

        .step-list { display: flex; flex-direction: column; gap: 20px; }
        .step-item {
            display: flex;
            gap: 16px;
            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: 700;
            flex-shrink: 0;
        }
        .step-text h3 a { color: inherit; }

        .download-wrap {
            background: var(--bg-surface);
            padding: 2rem 1.5rem;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--border-default);
        }
        .btn-download {
            display: inline-block;
            background: var(--grad-button);
            color: var(--btn-text);
            padding: 14px 32px;
            border-radius: var(--radius-lg);
            font-weight: 700;
            margin: 1.5rem 0;
            box-shadow: var(--shadow-card);
        }

        .guide-item {
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            border: 1px solid var(--border-default);
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 8px; display: block; }

        .announce-list { display: flex; flex-direction: column; gap: 16px; }
        .announce-card {
            background: var(--bg-surface);
            padding: 1.2rem;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-default);
            display: flex;
            gap: 12px;
        }
        .announce-icon { color: var(--brand-accent); font-size: 1.2rem; margin-top: 4px; }
        .announce-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-list { display: flex; flex-direction: column; gap: 12px; }
        details { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius-lg); }
        summary { padding: 1rem; cursor: pointer; list-style: none; font-weight: 600; }
        summary::-webkit-details-marker { display: none; }
        .faq-answer { padding: 0 1rem 1rem; color: var(--text-secondary); font-size: 0.95rem; }

        .about-content { background: var(--bg-surface); padding: 2rem 1.5rem; border-radius: var(--radius-lg); border: 1px solid var(--border-default); }
        .team-card {
            margin-top: 2rem;
            padding: 1.5rem;
            background: var(--bg-elevated);
            border-radius: var(--radius-lg);
            border-left: 4px solid var(--brand-accent);
        }

        .security-section {
            background: var(--bg-surface);
            padding: 2rem 1.5rem;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-default);
            text-align: center;
        }
        .security-links { display: flex; justify-content: center; gap: 20px; margin: 1.5rem 0; flex-wrap: wrap; }
        .security-link { color: var(--text-secondary); font-size: 0.9rem; text-decoration: underline; }

        footer {
            background: var(--bg-surface);
            padding-block: 3rem 1rem;
            margin-top: 3rem;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            max-width: 800px;
            margin: 0 auto 2rem;
            text-align: center;
        }
        .footer-sitemap a { font-size: 0.85rem; color: var(--text-secondary); }
        .footer-contact { margin-bottom: 2rem; font-size: 0.9rem; }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); padding-inline: 20px; }

        .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-block: 10px;
            padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
            z-index: 1000;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            color: var(--text-secondary);
            font-size: 0.7rem;
            text-decoration: none;
        }
        .nav-item i { font-size: 1.2rem; }

        .utility-link { color: var(--brand-accent); font-weight: 600; text-decoration: underline; }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .cat-grid { grid-template-columns: repeat(3, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .pay-grid { grid-template-columns: repeat(4, 1fr); }
            .step-list { flex-direction: row; flex-wrap: wrap; }
            .step-item { width: calc(50% - 10px); }
            .navigator { position: static; display: none; }
            .footer-sitemap { grid-template-columns: repeat(5, 1fr); }
        }

        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .cat-grid { grid-template-columns: repeat(6, 1fr); }
            .step-item { width: calc(25% - 15px); }
        }

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