:root {
            --color-primary: #0A2647;
            --color-primary-hover: #143A6B;
            --color-secondary: #C0C0C0;
            --color-secondary-hover: #E0E0E0;
            --color-accent: #00F5FF;
            --color-bg-main: #050B18;
            --color-bg-surface: #0C162D;
            --color-bg-elevated: #152242;
            --color-text-primary: #E6F1FF;
            --color-text-secondary: #B0C4DE;
            --color-text-muted: #7A8FA8;
            --color-btn-bg: #00F5FF;
            --color-btn-text: #050B18;
            --color-btn-hover: #70F7FF;
            --color-border: #1C2D52;
            --color-border-strong: #2A3F75;
            --font-headings: 'Oswald', sans-serif;
            --font-body: 'Be Vietnam Pro', sans-serif;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --radius-pill: 9999px;
            --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 15px rgba(0, 245, 255, 0.4);
            --grad-brand: linear-gradient(135deg, #0A2647 0%, #050B18 100%);
            --grad-hero: linear-gradient(180deg, #0C162D 0%, #050B18 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: var(--font-body);
            font-size: clamp(15px, 3.9vw, 16px);
            line-height: 1.65;
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            background-color: var(--color-bg-main);
            color: var(--color-text-primary);
            overflow-x: hidden;
        }
        img, video, iframe { max-width: 100%; height: auto; display: block; }
        a { color: var(--color-accent); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: var(--color-btn-hover); }

        .btn, .cta-button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.3s ease;
            text-align: center;
            font-family: var(--font-headings);
            text-transform: uppercase;
        }
        .btn-primary {
            background: var(--grad-button);
            color: var(--color-btn-text);
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:hover {
            background: var(--color-btn-hover);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--color-accent);
            color: var(--color-accent);
        }
        .btn-outline:hover {
            background: var(--color-accent);
            color: var(--color-bg-main);
        }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .header-logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .header-brand-name {
            font-size: 16px;
            font-weight: normal;
            color: var(--color-text-primary);
        }
        .header-actions {
            display: flex;
            gap: 12px;
        }

        main {
            width: 100%;
        }

        .hero-section {
            padding: 40px 0;
            text-align: center;
            background: var(--grad-hero);
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            margin-bottom: 20px;
        }
        .hero-section h1 {
            font-family: var(--font-headings);
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            color: var(--color-text-primary);
            margin-bottom: 20px;
            font-style: italic;
            border-left: 4px solid var(--color-accent);
            padding-left: 15px;
            text-align: left;
        }
        .hero-intro {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            margin-bottom: 30px;
            text-align: left;
        }
        .hero-cta-wrapper {
            margin-bottom: 25px;
        }
        .hero-cta-full {
            width: 100%;
            display: block;
            box-sizing: border-box;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: flex-start;
        }
        .hero-tag {
            background: var(--color-bg-elevated);
            border: 1px solid var(--color-border-strong);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            color: var(--color-text-secondary);
        }

        .banner-container {
            margin-bottom: 30px;
        }
        .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: 15px;
            margin-bottom: 40px;
        }
        .category-tile {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border);
            padding: 20px;
            border-radius: var(--radius-lg);
            text-align: center;
            transition: border-color 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .category-tile:hover {
            border-color: var(--color-accent);
        }
        .category-tile i {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: 8px;
        }
        .category-tile strong {
            display: block;
            font-family: var(--font-headings);
            font-size: 1.1rem;
            color: var(--color-text-primary);
        }
        .category-tile span {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .section-title {
            font-family: var(--font-headings);
            font-size: clamp(1.3rem, 5.2vw, 1.8rem);
            line-height: 1.25;
            margin-top: 2rem;
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            font-style: italic;
            border-bottom: 2px solid var(--color-accent);
            display: inline-block;
            padding-bottom: 5px;
        }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 40px;
        }
        .game-card {
            background: var(--color-bg-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid var(--color-border);
        }
        .game-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-card);
            border-color: var(--color-accent);
        }
        .game-card img {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
        }
        .game-card h3 {
            padding: 12px;
            font-size: 1rem;
            margin: 0;
            text-align: center;
            color: var(--color-text-primary);
            font-family: var(--font-body);
            font-weight: 600;
        }

        .facts-container {
            background: var(--color-bg-surface);
            padding: 25px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            margin-bottom: 40px;
        }
        .freshness-notice {
            font-style: italic;
            color: var(--color-text-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
            display: block;
        }
        .facts-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 15px;
        }
        .facts-table td {
            padding: 12px;
            border-bottom: 1px solid var(--color-border);
        }
        .facts-table td:first-child {
            font-weight: 600;
            color: var(--color-text-secondary);
            width: 40%;
        }
        .facts-table td:last-child {
            color: var(--color-text-primary);
        }
        .terms-link-wrap {
            text-align: center;
            font-size: 0.85rem;
        }
        .terms-link-wrap a {
            color: var(--color-text-muted);
            text-decoration: underline;
        }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 10px;
            padding: 15px 0;
            margin-bottom: 30px;
            scrollbar-width: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            background: var(--color-bg-elevated);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            font-size: 0.9rem;
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
        }
        .toc-link:hover {
            background: var(--color-border-strong);
            color: var(--color-accent);
        }

        .promo-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-bottom: 40px;
        }
        .promo-card {
            background: var(--color-bg-surface);
            padding: 25px;
            border-radius: var(--radius-lg);
            border-left: 5px solid var(--color-accent);
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .promo-card h3 {
            font-family: var(--font-headings);
            font-size: 1.4rem;
            margin: 0;
            color: var(--color-text-primary);
        }
        .promo-card p {
            margin: 0;
            color: var(--color-text-secondary);
        }

        .usp-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-bottom: 40px;
        }
        .usp-tile {
            background: var(--color-bg-elevated);
            padding: 20px;
            border-radius: var(--radius-lg);
            display: flex;
            gap: 20px;
            align-items: flex-start;
            border: 1px solid var(--color-border);
        }
        .usp-tile i {
            font-size: 1.5rem;
            color: var(--color-accent);
        }
        .usp-content strong {
            display: block;
            font-size: 1.1rem;
            margin-bottom: 5px;
            color: var(--color-text-primary);
        }
        .usp-content p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
        }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 40px;
        }
        .payment-card {
            background: var(--color-bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }
        .payment-card i {
            font-size: 1.8rem;
            color: var(--color-accent);
        }
        .payment-card strong {
            display: block;
            color: var(--color-text-primary);
        }
        .payment-card p {
            margin: 0;
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        .guide-steps {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-bottom: 40px;
        }
        .step-item {
            display: flex;
            gap: 20px;
            background: var(--color-bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            align-items: center;
        }
        .step-badge {
            background: var(--color-accent);
            color: var(--color-bg-main);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .step-content h3 {
            margin: 0 0 10px 0;
            font-size: 1.1rem;
            color: var(--color-text-primary);
        }
        .step-content a {
            color: inherit;
            text-decoration: none;
        }
        .step-content p {
            margin: 0;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
        }

        .download-section {
            background: var(--color-bg-surface);
            padding: 30px;
            border-radius: var(--radius-lg);
            text-align: center;
            margin-bottom: 40px;
            border: 1px solid var(--color-border);
        }
        .download-text {
            margin-bottom: 25px;
            color: var(--color-text-secondary);
        }

        .player-guides-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-bottom: 40px;
        }
        .guide-item {
            background: var(--color-bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
        }
        .guide-item h3 {
            margin: 0 0 5px 0;
            color: var(--color-accent);
        }
        .guide-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 15px;
            display: block;
        }
        .guide-item p {
            margin: 0;
            color: var(--color-text-secondary);
        }

        .announcement-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin-bottom: 40px;
        }
        .announcement-card {
            background: var(--color-bg-elevated);
            padding: 20px;
            border-radius: var(--radius-lg);
            display: flex;
            gap: 15px;
            border: 1px solid var(--color-border);
        }
        .announcement-card i {
            color: var(--color-accent);
            font-size: 1.2rem;
            margin-top: 5px;
        }
        .announcement-content h3 {
            margin: 0 0 10px 0;
            font-size: 1.1rem;
            color: var(--color-text-primary);
        }
        .announcement-content p {
            margin: 0 0 10px 0;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
        }
        .announcement-date {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        .faq-section {
            margin-bottom: 40px;
        }
        .faq-item {
            background: var(--color-bg-surface);
            margin-bottom: 10px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
        }
        .faq-item summary {
            padding: 15px 20px;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            font-weight: 600;
            color: var(--color-text-primary);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary h3 {
            font-size: 1rem;
            margin: 0;
            pointer-events: none;
        }
        .faq-answer {
            padding: 0 20px 20px 20px;
            color: var(--color-text-secondary);
            font-size: 0.95rem;
        }

        .about-section {
            background: var(--color-bg-surface);
            padding: 30px;
            border-radius: var(--radius-lg);
            margin-bottom: 40px;
            border: 1px solid var(--color-border);
        }
        .team-card {
            margin-top: 25px;
            padding-top: 25px;
            border-top: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .team-card h3 {
            color: var(--color-accent);
            font-size: 1.2rem;
            margin: 0;
        }
        .team-card p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
        }

        .security-section {
            background: var(--color-bg-elevated);
            padding: 30px;
            border-radius: var(--radius-lg);
            margin-bottom: 40px;
            border: 1px solid var(--color-border);
        }
        .security-list {
            list-style: none;
            padding: 0;
            margin: 0 0 25px 0;
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }
        .security-list li {
            display: flex;
            gap: 10px;
            color: var(--color-text-secondary);
            font-size: 0.95rem;
        }
        .security-list li i {
            color: var(--color-accent);
            margin-top: 5px;
        }

        footer {
            background: var(--color-bg-surface);
            padding: 40px 0 20px 0;
            border-top: 1px solid var(--color-border);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            max-width: 800px;
            margin: 0 auto 30px auto;
        }
        .footer-sitemap a {
            color: var(--color-text-muted);
            font-size: 0.85rem;
        }
        .footer-contact {
            margin-bottom: 20px;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
        }
        .footer-legal {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            max-width: 700px;
            margin: 0 auto;
        }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--color-bg-surface);
            border-top: 1px solid var(--color-border);
            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(--color-text-muted);
            font-size: 0.7rem;
            text-decoration: none;
        }
        .nav-item i {
            font-size: 1.2rem;
        }
        .nav-item:hover {
            color: var(--color-accent);
        }

        .util-link {
            display: block;
            text-align: center;
            margin-top: 15px;
            font-size: 0.9rem;
            color: var(--color-accent);
            font-weight: 500;
        }

        @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); }
            .guide-steps { grid-template-columns: repeat(2, 1fr); }
            .player-guides-grid { grid-template-columns: repeat(2, 1fr); }
            .announcement-grid { grid-template-columns: repeat(2, 1fr); }
            .promo-grid { grid-template-columns: repeat(3, 1fr); }
            .usp-grid { grid-template-columns: repeat(3, 1fr); }
            .navigator { position: static; display: none; }
        }

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

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