:root {
            --brand-primary: #007AFF;
            --brand-primary-hover: #3395FF;
            --brand-secondary: #C0C0C8;
            --brand-accent: #00F5FF;
            --bg-main: #050A18;
            --bg-surface: #0D152B;
            --bg-elevated: #162141;
            --text-primary: #F0F4FF;
            --text-secondary: #B0B8D1;
            --text-muted: #7A86A5;
            --border-default: #1E2B54;
            --border-brand: #00F5FF;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --glow: 0 0 15px rgba(0, 245, 255, 0.4);
        }

        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; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-default);
        }

        .header-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            color: inherit;
        }

        .header-brand strong {
            font-size: 16px;
            font-weight: 400;
        }

        .header-actions {
            display: flex;
            gap: 10px;
        }

        .btn-nav {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: background 0.3s;
        }

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-default);
        }

        .btn-register {
            background: var(--brand-primary);
            color: #FFFFFF;
        }

        main {
            width: 100%;
        }

        .hero-section {
            padding: 40px 0;
            text-align: center;
            background: radial-gradient(circle at top right, #162141 0%, #050A18 100%);
        }

        h1 {
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .hero-intro {
            color: var(--text-secondary);
            max-width: 800px;
            margin: 0 auto 30px;
            font-size: 1.1rem;
        }

        .cta-main {
            display: block;
            width: 100%;
            max-width: 400px;
            margin: 0 auto;
            padding: 16px;
            background: linear-gradient(135deg, #007AFF 0%, #00F5FF 100%);
            color: #050A18;
            text-decoration: none;
            font-weight: 700;
            border-radius: var(--radius-pill);
            font-size: 1.2rem;
            box-shadow: var(--glow);
            transition: transform 0.2s;
        }

        .cta-main:hover { transform: scale(1.02); }

        .hero-tags {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .tag-pill {
            background: rgba(0, 245, 255, 0.1);
            border: 1px solid var(--border-brand);
            color: var(--brand-accent);
            padding: 4px 12px;
            border-radius: 99px;
            font-size: 0.85rem;
        }

        .banner-link img {
            width: 100%;
            aspect-ratio: 2 / 1;
            object-fit: cover;
            border-radius: 0;
        }

        .category-hub {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin: 30px 0;
        }

        .category-tile {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 20px;
            border-radius: var(--radius-md);
            text-decoration: none;
            color: inherit;
            text-align: center;
            transition: border-color 0.3s;
        }

        .category-tile:hover { border-color: var(--brand-accent); }

        .category-tile i {
            font-size: 2rem;
            color: var(--brand-accent);
            margin-bottom: 10px;
        }

        .category-tile span {
            display: block;
            font-weight: 600;
            margin-bottom: 5px;
        }

        .category-tile p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin: 20px 0;
        }

        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            text-decoration: none;
            color: inherit;
            overflow: hidden;
            border: 1px solid var(--border-default);
        }

        .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;
        }

        h2 {
            font-size: clamp(1.3rem, 5.2vw, 1.8rem);
            line-height: 1.25;
            margin: 2rem 0 1rem;
            color: var(--text-primary);
        }

        .facts-container {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-default);
            margin-bottom: 20px;
        }

        .freshness-notice {
            font-style: italic;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
            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%;
        }

        .terms-link {
            display: block;
            text-align: center;
            margin-top: 15px;
            color: var(--text-muted);
            font-size: 0.85rem;
            text-decoration: underline;
        }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 10px 0;
            margin-bottom: 30px;
            scrollbar-width: none;
        }

        .toc-nav::-webkit-scrollbar { display: none; }

        .toc-link {
            white-space: nowrap;
            background: var(--bg-elevated);
            color: var(--text-primary);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            text-decoration: none;
            font-size: 0.9rem;
            border: 1px solid var(--border-default);
        }

        .promo-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .promo-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 24px;
            border-radius: var(--radius-md);
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .promo-card h3 { margin: 0; color: var(--brand-accent); }

        .btn-promo {
            align-self: flex-start;
            padding: 10px 20px;
            background: var(--brand-primary);
            color: #FFF;
            text-decoration: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }

        .usp-bar {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin: 30px 0;
        }

        .usp-tile {
            display: flex;
            gap: 15px;
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            align-items: center;
            border: 1px solid var(--border-default);
        }

        .usp-tile i {
            font-size: 1.5rem;
            color: var(--brand-accent);
        }

        .usp-content strong { display: block; margin-bottom: 4px; }

        .usp-content p { margin: 0; font-size: 0.9rem; color: var(--text-secondary); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin: 20px 0;
        }

        .payment-card {
            background: var(--bg-surface);
            padding: 15px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
            text-align: center;
        }

        .payment-card i {
            font-size: 1.8rem;
            color: var(--brand-accent);
            margin-bottom: 10px;
        }

        .payment-card span { display: block; font-weight: 600; margin-bottom: 8px; }

        .payment-card p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }

        .guide-steps {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .step-item {
            display: flex;
            gap: 15px;
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }

        .step-num {
            background: var(--brand-primary);
            color: #FFF;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: 700;
        }

        .step-text h3 { margin: 0 0 10px; font-size: 1.1rem; }
        .step-text h3 a { color: inherit; text-decoration: none; }

        .download-box {
            background: linear-gradient(135deg, #0D152B 0%, #162141 100%);
            padding: 30px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--border-brand);
            margin: 30px 0;
        }

        .btn-download {
            display: inline-block;
            padding: 16px 32px;
            background: var(--brand-accent);
            color: var(--bg-main);
            text-decoration: none;
            font-weight: 700;
            border-radius: var(--radius-md);
            margin-top: 20px;
        }

        .player-guide-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            margin-bottom: 15px;
            border-left: 4px solid var(--brand-primary);
        }

        .guide-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: block;
        }

        .announcement-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .announcement-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
            display: flex;
            gap: 15px;
        }

        .announcement-item i { color: var(--brand-accent); font-size: 1.2rem; }

        .announcement-body h3 { margin: 0 0 10px; font-size: 1.1rem; }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); }

        .faq-container {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        details {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
        }

        summary {
            padding: 15px;
            cursor: pointer;
            list-style: none;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        summary h3 { margin: 0; font-size: 1rem; font-weight: 600; }

        .faq-answer { padding: 0 15px 15px; color: var(--text-secondary); }

        .about-box {
            background: var(--bg-surface);
            padding: 30px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-default);
            margin: 30px 0;
        }

        .team-card {
            background: var(--bg-elevated);
            padding: 20px;
            border-radius: var(--radius-md);
            margin-top: 20px;
            border: 1px solid var(--border-default);
        }

        .security-footer {
            background: var(--bg-surface);
            padding: 30px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-default);
            text-align: center;
        }

        .ext-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin: 20px 0;
        }

        .ext-link { color: var(--brand-accent); text-decoration: none; font-size: 0.9rem; }

        footer {
            margin-top: 50px;
            padding: 40px 0;
            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 30px;
        }

        .footer-sitemap a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.9rem;
        }

        .contact-line {
            margin-bottom: 20px;
            color: var(--text-secondary);
        }

        .contact-line a { color: var(--brand-accent); text-decoration: none; }

        .legal-line {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            background: var(--bg-surface);
            border-top: 1px solid var(--border-default);
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            padding: 10px 0;
            padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 5px;
            font-size: 0.7rem;
        }

        .nav-item i { font-size: 1.2rem; }

        .utility-link {
            display: block;
            text-align: center;
            margin-top: 15px;
            color: var(--brand-accent);
            text-decoration: none;
            font-weight: 500;
        }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .category-hub { grid-template-columns: repeat(3, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .navigator { display: none; }
        }

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

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