:root {
            --brand-primary: #1E3A8A;
            --brand-primary-hover: #2563EB;
            --brand-secondary: #E2E8F0;
            --brand-accent: #06B6D4;
            --bg-main: #050B1A;
            --bg-surface: #0D152B;
            --bg-elevated: #16213D;
            --text-primary: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-link: #22D3EE;
            --btn-bg: #06B6D4;
            --btn-text: #050B1A;
            --btn-hover-bg: #22D3EE;
            --border-default: #1E293B;
            --border-brand: rgba(6, 182, 212, 0.5);
            --radius-md: 12px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --glass-bg: rgba(22, 33, 61, 0.7);
        }

        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;
            background-color: var(--bg-main);
            color: var(--text-primary);
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            overflow-x: hidden;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--text-link); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #BBF7D0; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            max-width: 1200px;
            margin: 0 auto;
        }
        .header-brand { display: flex; align-items: center; gap: 8px; }
        .header-brand strong { font-size: 16px; font-weight: normal; }
        .header-actions { display: flex; gap: 12px; }

        .btn-base {
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            font-weight: 600;
            text-align: center;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            border: none;
        }
        .btn-primary { background: var(--btn-bg); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-hover-bg); transform: translateY(-2px); }
        .btn-outline { border: 1px solid var(--border-brand); color: var(--text-primary); }
        .btn-outline:hover { background: var(--border-brand); }

        main { max-width: 1200px; margin: 0 auto; }

        .hero-panel {
            padding: 2rem 0;
            text-align: center;
            background: radial-gradient(circle at top right, #1E3A8A 0%, #050B1A 70%);
        }
        h1 {
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
        }
        .hero-intro {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 800px;
            margin: 0 auto 2rem;
            padding-inline: 1rem;
        }
        .hero-cta { width: 100%; max-width: 400px; margin: 0 auto; display: block; }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 2rem;
        }
        .tag-pill {
            background: var(--bg-elevated);
            border: 1px solid var(--border-brand);
            padding: 6px 14px;
            border-radius: 9999px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .banner-wrap { width: 100%; margin: 1rem 0; }
        .banner-wrap 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: 16px;
            margin: 2rem 0;
        }
        .category-tile {
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
            text-align: center;
            transition: border-color 0.3s ease;
        }
        .category-tile:hover { border-color: var(--brand-accent); }
        .category-tile i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 1rem; }
        .category-tile strong { display: block; font-size: 1.1rem; margin-bottom: 0.5rem; }
        .category-tile span { font-size: 0.85rem; color: var(--text-secondary); }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 3rem;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-default);
            transition: transform 0.3s ease;
        }
        .game-card:hover { transform: scale(1.03); border-color: var(--brand-accent); }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card h3 {
            font-size: 1rem;
            padding: 12px;
            margin: 0;
            text-align: center;
            color: var(--text-primary);
        }

        .facts-container {
            background: var(--bg-surface);
            padding: 2rem;
            border-radius: var(--radius-lg);
            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-label { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .facts-value { color: var(--text-primary); }
        .terms-link-wrap {
            margin-top: 1rem;
            text-align: center;
            font-size: 0.85rem;
        }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 1rem 0;
            scrollbar-width: none;
            border-bottom: 1px solid var(--border-default);
            margin-bottom: 2rem;
        }
        .toc-nav::-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);
        }

        .promo-list { display: flex; flex-direction: column; gap: 20px; margin-bottom: 3rem; }
        .promo-card {
            background: var(--bg-elevated);
            padding: 2rem;
            border-radius: var(--radius-lg);
            border-left: 4px solid var(--brand-accent);
        }
        .promo-card h3 { margin-top: 0; color: var(--text-primary); }

        .usp-bar {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-bottom: 3rem;
        }
        .usp-tile {
            display: flex;
            gap: 16px;
            padding: 1.5rem;
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            align-items: flex-start;
        }
        .usp-tile i { font-size: 1.5rem; color: var(--brand-accent); }
        .usp-title { display: block; font-weight: 600; margin-bottom: 4px; }
        .usp-desc { font-size: 0.9rem; color: var(--text-secondary); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 3rem;
        }
        .payment-card {
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            text-align: center;
            border: 1px solid var(--border-default);
        }
        .payment-card i { font-size: 2rem; color: var(--text-link); margin-bottom: 1rem; }
        .payment-card strong { display: block; margin-bottom: 8px; }
        .payment-card p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

        .guide-steps { display: flex; flex-direction: column; gap: 24px; margin-bottom: 3rem; }
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-md);
        }
        .step-badge {
            background: var(--brand-accent);
            color: var(--bg-main);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }
        .step-content h3 { margin: 0 0 8px 0; }
        .step-content a { color: inherit; text-decoration: none; }

        .download-box {
            background: var(--bg-elevated);
            padding: 2rem;
            border-radius: var(--radius-lg);
            text-align: center;
            margin-bottom: 3rem;
            border: 1px solid var(--border-brand);
        }

        .player-guides { display: flex; flex-direction: column; gap: 20px; margin-bottom: 3rem; }
        .guide-item {
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-md);
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); display: block; margin-bottom: 10px; }

        .announcement-list { display: flex; flex-direction: column; gap: 16px; margin-bottom: 3rem; }
        .announcement-item {
            display: flex;
            gap: 16px;
            padding: 1.5rem;
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            border-left: 3px solid var(--text-muted);
        }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-section { margin-bottom: 3rem; }
        .faq-item {
            margin-bottom: 12px;
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .faq-item summary {
            padding: 16px;
            background: var(--bg-surface);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-item summary h3 { margin: 0; font-size: 1.1rem; }
        .faq-answer { padding: 16px; background: var(--bg-main); border-top: 1px solid var(--border-default); }

        .about-section {
            background: var(--bg-surface);
            padding: 2rem;
            border-radius: var(--radius-lg);
            margin-bottom: 3rem;
        }
        .team-card {
            margin-top: 2rem;
            padding: 1.5rem;
            background: var(--bg-elevated);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-brand);
        }

        .security-section {
            padding: 2rem;
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            margin-bottom: 3rem;
        }
        .security-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-bottom: 2rem;
        }
        .security-box {
            padding: 1rem;
            background: var(--bg-main);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }

        footer {
            background: var(--bg-surface);
            padding: 3rem 0;
            margin-top: 4rem;
            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 2rem;
            text-align: center;
        }
        .footer-contact { margin-bottom: 2rem; }
        .footer-legal { font-size: 0.85rem; color: var(--text-muted); line-height: 1.8; }

        .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-brand);
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            color: var(--text-secondary);
            font-size: 0.75rem;
        }
        .nav-item i { font-size: 1.2rem; }
        .nav-item:hover { color: var(--brand-accent); }

        .utility-link {
            display: inline-block;
            margin-top: 1rem;
            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(2, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .security-grid { grid-template-columns: repeat(2, 1fr); }
            .navigator { display: none; }
        }

        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .category-grid { grid-template-columns: repeat(6, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .usp-bar { grid-template-columns: repeat(4, 1fr); }
        }