:root {
            --primary-bg: #060D1B;
            --surface-bg: #0D182E;
            --elevated-bg: #162442;
            --brand-primary: #0B1A31;
            --brand-accent: #00F5FF;
            --brand-accent-hover: #70F9FF;
            --text-primary: #E6EEF7;
            --text-secondary: #B0BCCB;
            --text-muted: #7A8B9C;
            --border-color: #1C2C4D;
            --border-strong: #2A3F66;
            --success: #00E676;
            --error: #FF5252;
            --warning: #FFD740;
            --info: #40C4FF;
        }

        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: 'Be Vietnam Pro', sans-serif;
            background-color: var(--primary-bg);
            color: var(--text-primary);
            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;
        }

        h1, h2, h3 {
            font-family: 'Archivo', sans-serif;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); margin-bottom: 1rem; font-style: italic; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); margin-top: 2.5rem; margin-bottom: 1.25rem; font-style: italic; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); margin-bottom: 0.75rem; }

        a { text-decoration: none; color: var(--brand-accent); transition: color 0.2s ease; }
        a:hover { color: var(--brand-accent-hover); }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            max-width: 1200px;
            margin: 0 auto;
        }

        .header-logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .header-logo-link strong {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-primary);
        }

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

        .btn-nav {
            padding: 8px 16px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 14px;
            text-align: center;
        }

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

        .btn-register {
            background-color: var(--brand-accent);
            color: var(--primary-bg);
        }

        .hero-section {
            text-align: center;
            padding: 2rem 0;
        }

        .hero-intro {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            max-width: 800px;
            margin-inline: auto;
        }

        .btn-hero {
            display: block;
            width: 100%;
            background: linear-gradient(180deg, #00F5FF 0%, #00D1DD 100%);
            color: var(--primary-bg);
            padding: 16px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.25rem;
            text-transform: uppercase;
            box-shadow: 0 0 15px rgba(0, 245, 255, 0.4);
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
            margin-top: 1.5rem;
        }

        .hero-tag {
            background-color: var(--elevated-bg);
            color: var(--text-secondary);
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 0.8rem;
            border: 1px solid var(--border-color);
        }

        .banner-wrapper {
            margin: 2rem 0;
            display: block;
        }

        .banner-img {
            width: 100%;
            aspect-ratio: 2 / 1;
            object-fit: cover;
            border-radius: 8px;
        }

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

        .category-tile {
            background-color: var(--surface-bg);
            padding: 1.5rem;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: transform 0.2s ease, border-color 0.2s ease;
        }

        .category-tile:hover {
            transform: translateY(-4px);
            border-color: var(--brand-accent);
        }

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

        .category-name {
            display: block;
            font-size: 1.1rem;
            color: var(--text-primary);
            margin-bottom: 5px;
        }

        .category-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

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

        .game-card {
            background-color: var(--surface-bg);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: border-color 0.2s ease;
        }

        .game-card:hover {
            border-color: var(--brand-accent);
        }

        .game-card img {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
        }

        .game-card h3 {
            padding: 10px;
            font-size: 1rem;
            text-align: center;
            margin: 0;
            color: var(--text-primary);
        }

        .facts-section {
            margin: 3rem 0;
            background-color: var(--surface-bg);
            padding: 1.5rem;
            border-radius: 16px;
        }

        .freshness-notice {
            font-style: italic;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 1rem;
            display: block;
        }

        .facts-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 1rem;
        }

        .facts-table tr {
            border-bottom: 1px solid var(--border-color);
        }

        .facts-table td {
            padding: 12px 8px;
            font-size: 0.95rem;
        }

        .facts-label {
            color: var(--text-secondary);
            width: 40%;
        }

        .facts-value {
            color: var(--text-primary);
            font-weight: 500;
        }

        .terms-link {
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: center;
            display: block;
        }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 1rem 0;
            scrollbar-width: none;
        }

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

        .toc-link {
            background-color: var(--elevated-bg);
            padding: 8px 16px;
            border-radius: 4px;
            white-space: nowrap;
            font-size: 0.9rem;
            border: 1px solid var(--border-strong);
        }

        .promo-grid {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .promo-card {
            background-color: var(--surface-bg);
            padding: 1.5rem;
            border-radius: 16px;
            border-left: 4px solid var(--brand-accent);
        }

        .promo-card h3 {
            margin-top: 0;
        }

        .promo-card p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        .btn-promo {
            display: inline-block;
            background-color: var(--brand-accent);
            color: var(--primary-bg);
            padding: 10px 20px;
            border-radius: 4px;
            font-weight: 600;
        }

        .usp-bar {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin: 3rem 0;
        }

        .usp-tile {
            display: flex;
            gap: 15px;
            padding: 1rem;
            background-color: var(--surface-bg);
            border-radius: 12px;
            align-items: flex-start;
        }

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

        .usp-content strong {
            display: block;
            margin-bottom: 4px;
            color: var(--text-primary);
        }

        .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;
        }

        .payment-card {
            background-color: var(--surface-bg);
            padding: 1.25rem;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-color);
        }

        .payment-icon {
            font-size: 1.75rem;
            margin-bottom: 10px;
            color: var(--brand-accent);
        }

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

        .payment-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

        .step-item {
            display: flex;
            gap: 15px;
            align-items: flex-start;
        }

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

        .step-content h3 {
            margin: 0 0 8px 0;
        }

        .step-content a {
            color: inherit;
        }

        .app-section {
            background-color: var(--elevated-bg);
            padding: 2rem 1.5rem;
            border-radius: 16px;
            text-align: center;
            margin: 3rem 0;
        }

        .btn-app {
            display: block;
            background-color: var(--brand-accent);
            color: var(--primary-bg);
            padding: 14px;
            border-radius: 8px;
            font-weight: 700;
            margin-top: 1.5rem;
        }

        .player-guides {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .guide-card {
            background-color: var(--surface-bg);
            padding: 1.5rem;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .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 {
            padding: 1rem;
            background-color: var(--surface-bg);
            border-radius: 12px;
            display: flex;
            gap: 12px;
            border: 1px solid var(--border-color);
        }

        .announcement-icon {
            color: var(--brand-accent);
            margin-top: 4px;
        }

        .announcement-body h3 {
            font-size: 1.1rem;
            margin: 0 0 8px 0;
        }

        .announcement-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }

        .announcement-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .faq-section {
            margin: 3rem 0;
        }

        .faq-item {
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
        }

        .faq-item summary {
            padding: 15px;
            background-color: var(--surface-bg);
            cursor: pointer;
            list-style: none;
        }

        .faq-item summary h3 {
            margin: 0;
            font-size: 1.05rem;
        }

        .faq-answer {
            padding: 15px;
            background-color: var(--primary-bg);
            color: var(--text-secondary);
            border-top: 1px solid var(--border-color);
        }

        .about-content {
            background-color: var(--surface-bg);
            padding: 2rem;
            border-radius: 16px;
        }

        .team-card {
            margin-top: 2rem;
            padding: 1.5rem;
            background-color: var(--elevated-bg);
            border-radius: 12px;
            border: 1px solid var(--border-strong);
        }

        .security-section {
            margin: 3rem 0;
            padding: 2rem;
            background-color: var(--surface-bg);
            border-radius: 16px;
            border: 1px solid var(--border-strong);
        }

        .rg-links {
            display: flex;
            gap: 15px;
            margin: 1.5rem 0;
            flex-wrap: wrap;
        }

        .rg-link {
            padding: 8px 12px;
            background-color: var(--elevated-bg);
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 0.9rem;
        }

        footer {
            margin-top: 4rem;
            padding: 3rem 0 5rem 0;
            border-top: 1px solid var(--border-strong);
            text-align: center;
        }

        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            max-width: 800px;
            margin: 0 auto 2rem auto;
            text-align: left;
        }

        .footer-contact {
            margin-bottom: 2rem;
            color: var(--text-secondary);
        }

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

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

        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 0.7rem;
            color: var(--text-secondary);
            gap: 4px;
        }

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

        .utility-link {
            font-size: 0.9rem;
            color: var(--brand-accent);
            text-decoration: underline;
        }

        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); }
            .navigator { display: none; }
            header { padding-inline: 0; }
            .footer-sitemap { grid-template-columns: repeat(5, 1fr); }
        }

        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
        }