:root {
            --brand-primary: #005BFF;
            --brand-primary-hover: #2E7BFF;
            --brand-secondary: #C0C0C0;
            --brand-secondary-hover: #E0E0E0;
            --brand-accent: #00F5FF;
            --bg-main: #050A18;
            --bg-surface: #0D152B;
            --bg-elevated: #162142;
            --bg-overlay: rgba(5, 10, 24, 0.8);
            --text-primary: #E6EBF5;
            --text-secondary: #A0AECB;
            --text-muted: #6B7B9C;
            --text-brand-contrast: #050A18;
            --text-link: #00F5FF;
            --text-link-hover: #70F9FF;
            --btn-bg: #00F5FF;
            --btn-text: #050A18;
            --btn-bg-hover: #70F9FF;
            --semantic-success: #00E676;
            --semantic-error: #FF5252;
            --semantic-warning: #FFD740;
            --semantic-info: #40C4FF;
            --border-default: #1C2B52;
            --border-strong: #2A3E7A;
            --border-brand: #00F5FF;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --radius-pill: 9999px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-elevated: 0 8px 30px rgba(0, 0, 0, 0.6);
            --shadow-glow: 0 0 15px rgba(0, 245, 255, 0.5);
            --grad-brand: linear-gradient(135deg, #005BFF 0%, #00F5FF 100%);
            --grad-hero: radial-gradient(circle at center, #162142 0%, #050A18 100%);
            --grad-button: linear-gradient(180deg, #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);
        }
        h1, h2, h3 { font-family: 'Exo 2', sans-serif; letter-spacing: -0.02em; color: var(--text-primary); }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin-bottom: 1rem; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2rem; margin-bottom: 1.25rem; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin-bottom: 0.75rem; }
        
        a { color: var(--text-link); text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: var(--text-link-hover); }
        img { max-width: 100%; height: auto; display: block; }
        
        .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-pill);
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, opacity 0.2s;
            border: none;
            text-align: center;
        }
        .btn-primary { background: var(--grad-button); color: var(--text-brand-contrast); box-shadow: var(--shadow-glow); }
        .btn-primary:hover { transform: translateY(-2px); opacity: 0.9; }
        .btn-outline { background: transparent; border: 2px solid var(--brand-accent); color: var(--brand-accent); }
        .btn-outline:hover { background: var(--brand-accent); color: var(--text-brand-contrast); }
        .btn-full { width: 100%; display: flex; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-default);
        }
        .header-logo { display: flex; align-items: center; gap: 8px; }
        .header-logo strong { font-size: 16px; font-weight: normal; }
        .header-nav { display: flex; gap: 12px; }

        main { width: 100%; }
        
        .hero-section {
            padding: 40px 0;
            text-align: center;
            background: var(--grad-hero);
            border-radius: var(--radius-lg);
            margin-bottom: 24px;
        }
        .hero-intro-text { color: var(--text-secondary); margin-bottom: 24px; max-width: 800px; margin-inline: auto; }
        .hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 20px; }
        .hero-tag {
            background: var(--bg-elevated);
            color: var(--brand-accent);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            border: 1px solid var(--border-strong);
        }

        .banner-wrapper { margin-bottom: 24px; border-radius: var(--radius-lg); overflow: hidden; }
        .banner-img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 32px;
        }
        .category-tile {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            text-align: center;
            border: 1px solid var(--border-default);
            transition: border-color 0.3s;
        }
        .category-tile:hover { border-color: var(--brand-accent); }
        .category-tile i { font-size: 1.5rem; color: var(--brand-accent); margin-bottom: 8px; display: block; }
        .category-tile span { display: block; font-weight: 600; margin-bottom: 4px; color: var(--text-primary); }
        .category-tile p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 32px;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-default);
            transition: transform 0.2s;
        }
        .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); border-radius: var(--radius-lg); padding: 24px; border: 1px solid var(--border-strong); }
        .facts-notice { font-style: italic; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; }
        .facts-table { width: 100%; border-collapse: collapse; margin-bottom: 16px; }
        .facts-table td { padding: 12px; border-bottom: 1px solid var(--border-default); }
        .facts-table td:first-child { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .facts-link { display: block; text-align: center; font-size: 0.85rem; color: var(--text-muted); }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 16px 0;
            border-top: 1px solid var(--border-default);
            border-bottom: 1px solid var(--border-default);
            margin-bottom: 32px;
            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: 0.9rem;
            border: 1px solid var(--border-strong);
        }

        .promo-card {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 16px;
            border-left: 4px solid var(--brand-accent);
            display: flex;
            flex-direction: column;
        }
        .promo-card h3 { color: var(--brand-accent); }
        .promo-card p { color: var(--text-secondary); margin-bottom: 20px; }

        .usp-grid { display: grid; gap: 16px; margin-bottom: 32px; }
        .usp-tile {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            display: flex;
            gap: 16px;
            align-items: center;
            border: 1px solid var(--border-default);
        }
        .usp-tile i { font-size: 1.5rem; color: var(--brand-accent); }
        .usp-tile strong { display: block; font-size: 1.1rem; color: var(--text-primary); }
        .usp-tile p { margin: 0; font-size: 0.9rem; color: var(--text-secondary); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 32px;
        }
        .payment-card {
            background: var(--bg-surface);
            padding: 16px;
            border-radius: var(--radius-md);
            text-align: center;
            border: 1px solid var(--border-default);
        }
        .payment-card i { font-size: 1.5rem; color: var(--brand-accent); margin-bottom: 8px; display: block; }
        .payment-card strong { display: block; margin-bottom: 8px; }
        .payment-card p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }

        .guide-step {
            display: flex;
            gap: 16px;
            padding: 20px;
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            align-items: flex-start;
        }
        .step-num {
            background: var(--grad-brand);
            color: var(--text-brand-contrast);
            min-width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }
        .guide-step h3 a { color: inherit; }

        .download-box {
            background: var(--bg-surface);
            padding: 32px 24px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 2px dashed var(--border-strong);
        }

        .player-guide-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            border: 1px solid var(--border-default);
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 12px; display: block; }

        .announcement-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            display: flex;
            gap: 16px;
            border: 1px solid var(--border-default);
        }
        .announcement-item i { color: var(--brand-accent); font-size: 1.2rem; }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-container { display: grid; gap: 12px; }
        .faq-item details { background: var(--bg-surface); border-radius: var(--radius-md); border: 1px solid var(--border-default); }
        .faq-item summary { padding: 16px; cursor: pointer; list-style: none; display: flex; align-items: center; font-weight: 600; }
        .faq-item summary h3 { margin: 0; font-size: 1rem; }
        .faq-item p { padding: 0 16px 16px; color: var(--text-secondary); margin: 0; }

        .trust-card {
            background: var(--bg-elevated);
            padding: 24px;
            border-radius: var(--radius-md);
            margin-top: 24px;
            border: 1px solid var(--border-strong);
        }

        footer {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-bottom: 32px;
            text-align: left;
        }
        .footer-contact { margin-bottom: 24px; color: var(--text-secondary); }
        .footer-legal { font-size: 0.85rem; color: var(--text-muted); line-height: 1.5; }

        .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, 0px));
            border-top: 1px solid var(--border-strong);
            z-index: 1000;
        }
        .nav-item { text-align: center; color: var(--text-secondary); font-size: 0.75rem; }
        .nav-item i { font-size: 1.2rem; display: block; margin-bottom: 4px; }
        .nav-item:hover { color: var(--brand-accent); }

        .utility-link { display: inline-block; margin-top: 12px; color: var(--brand-accent); font-weight: 600; }

        @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 { 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; }
            .category-grid { grid-template-columns: repeat(4, 1fr); }
        }

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