:root {
            --color-primary: #0A2540;
            --color-primary-hover: #143B63;
            --color-secondary: #C0C0C0;
            --color-secondary-hover: #E0E0E0;
            --color-accent: #00F5FF;
            --bg-main: #050D17;
            --bg-surface: #0D1B2E;
            --bg-elevated: #162740;
            --bg-overlay: rgba(5, 13, 23, 0.8);
            --text-primary: #E6F1FF;
            --text-secondary: #A0B4D0;
            --text-muted: #6D83A3;
            --text-brand-contrast: #050D17;
            --text-link: #00F5FF;
            --text-link-hover: #70F9FF;
            --btn-bg: #00F5FF;
            --btn-text: #050D17;
            --btn-hover-bg: #70F9FF;
            --btn-hover-text: #050D17;
            --border-default: #1C3252;
            --border-strong: #2A4572;
            --border-brand: #00F5FF;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --radius-pill: 9999px;
            --shadow-card: 0 4px 0 #000000;
            --shadow-elevated: 0 8px 16px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 15px rgba(0, 245, 255, 0.6);
        }

        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);
        }

        img, video, iframe { max-width: 100%; height: auto; display: block; }
        a { color: var(--text-link); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--text-link-hover); }

        .btn, .cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.1s, background-color 0.2s;
            border: none;
            text-align: center;
            box-sizing: border-box;
        }
        .btn-primary { background: var(--btn-bg); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-hover-bg); color: var(--btn-hover-text); }
        .btn-secondary { background: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--border-brand); }
        .btn-secondary:hover { background: var(--border-strong); }
        .btn-full { width: 100%; }

        h1, h2, h3 { font-family: 'Archivo Black', sans-serif; letter-spacing: -0.02em; line-height: 1.1; color: var(--text-primary); }
        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); margin: 0 0 1rem 0; font-style: italic; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); margin-top: 2rem; margin-bottom: 1.25rem; position: relative; }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); margin: 0 0 0.5rem 0; }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            border-bottom: 2px solid var(--border-brand);
            margin-bottom: 2rem;
        }
        .header-brand { display: flex; align-items: center; gap: 8px; }
        .header-brand strong { font-size: 16px; font-weight: normal; }
        .header-actions { display: flex; gap: 10px; }

        main { max-width: 100%; margin: 0 auto; }
        section { padding: 2rem 0; content-visibility: auto; contain-intrinsic-size: 1px 500px; }

        .hero-section { text-align: center; padding: 2rem 0; }
        .hero-intro { font-size: 1.1rem; margin-bottom: 1.5rem; color: var(--text-secondary); }
        .hero-tags { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin-top: 1.5rem; }
        .hero-tag { background: var(--bg-surface); border: 1px solid var(--border-strong); padding: 4px 12px; border-radius: var(--radius-pill); font-size: 0.85rem; color: var(--text-muted); }

        .banner-link { display: block; width: 100%; aspect-ratio: 2 / 1; overflow: hidden; border-radius: var(--radius-lg); }
        .banner-img { width: 100%; height: 100%; object-fit: cover; }

        .category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 2rem 0; }
        .category-tile {
            background: var(--bg-surface);
            border: 2px solid var(--border-default);
            padding: 1.5rem 1rem;
            border-radius: var(--radius-lg);
            text-align: center;
            transition: border-color 0.3s;
        }
        .category-tile:hover { border-color: var(--color-accent); }
        .category-tile i { font-size: 2rem; color: var(--color-accent); margin-bottom: 10px; display: block; }
        .category-tile strong { display: block; margin-bottom: 8px; font-size: 1.1rem; }
        .category-tile span { font-size: 0.85rem; color: var(--text-muted); }

        .games-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform 0.2s;
        }
        .game-card:hover { transform: translateY(-4px); }
        .game-card img { aspect-ratio: 1 / 1; object-fit: cover; width: 100%; }
        .game-card h3 { padding: 12px; font-size: 1rem; text-align: center; margin: 0; color: var(--text-primary); }

        .facts-container { background: var(--bg-surface); border: 1px solid var(--border-strong); border-radius: var(--radius-lg); padding: 1.5rem; margin: 1.5rem 0; }
        .facts-notice { font-style: italic; color: var(--text-muted); font-size: 0.85rem; margin-bottom: 1rem; display: block; }
        .facts-table { width: 100%; border-collapse: collapse; }
        .facts-table td { padding: 10px; border-bottom: 1px solid var(--border-default); }
        .facts-label { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .facts-value { color: var(--text-primary); }
        .facts-footer { display: block; margin-top: 1rem; font-size: 0.85rem; text-align: center; }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 10px;
            padding: 1rem 0;
            scrollbar-width: none;
            border-top: 1px solid var(--border-default);
            border-bottom: 1px solid var(--border-default);
        }
        .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-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .promo-card {
            background: var(--bg-surface);
            border-left: 4px solid var(--color-accent);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-elevated);
        }
        .promo-card h3 { margin-bottom: 10px; }
        .promo-card p { margin-bottom: 1.5rem; color: var(--text-secondary); }

        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 15px; }
        .usp-tile {
            background: var(--bg-surface);
            padding: 1.2rem;
            border-radius: var(--radius-lg);
            display: flex;
            gap: 15px;
            align-items: flex-start;
        }
        .usp-tile i { color: var(--color-accent); font-size: 1.5rem; margin-top: 4px; }
        .usp-content strong { display: block; margin-bottom: 4px; }
        .usp-content span { font-size: 0.9rem; color: var(--text-muted); }

        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .payment-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 1rem;
            border-radius: var(--radius-lg);
            text-align: center;
        }
        .payment-card i { font-size: 1.8rem; color: var(--text-primary); margin-bottom: 10px; display: block; }
        .payment-card strong { display: block; margin-bottom: 8px; }
        .payment-card p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }

        .guide-steps { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .guide-step {
            display: flex;
            gap: 15px;
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            align-items: center;
        }
        .step-number {
            background: var(--color-accent);
            color: var(--text-brand-contrast);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }
        .guide-step h3 a { color: inherit; }

        .download-box {
            background: linear-gradient(135deg, var(--bg-surface), var(--bg-elevated));
            padding: 2rem;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--border-strong);
        }

        .player-guide-item {
            background: var(--bg-surface);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            margin-bottom: 1rem;
            border: 1px solid var(--border-default);
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; display: block; }

        .announcement-list { display: grid; grid-template-columns: 1fr; gap: 15px; }
        .announcement-card {
            background: var(--bg-surface);
            padding: 1rem;
            border-radius: var(--radius-lg);
            border-left: 3px solid var(--text-muted);
        }
        .announcement-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .announcement-header i { color: var(--color-accent); }
        .announcement-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 8px; }

        .faq-item { background: var(--bg-surface); margin-bottom: 10px; border-radius: var(--radius-lg); overflow: hidden; }
        .faq-item summary { padding: 1.2rem; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item h3 { margin: 0; font-size: 1.1rem; pointer-events: none; }
        .faq-answer { padding: 0 1.2rem 1.2rem 1.2rem; color: var(--text-secondary); border-top: 1px solid var(--border-default); padding-top: 1rem; }

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

        .security-section { background: var(--bg-surface); padding: 2rem; border-radius: var(--radius-lg); }
        .security-links { display: flex; gap: 15px; flex-wrap: wrap; margin: 1.5rem 0; }
        .security-link { background: var(--bg-main); padding: 8px 16px; border-radius: var(--radius-md); font-size: 0.9rem; }

        footer {
            border-top: 2px solid var(--border-brand);
            padding: 2rem 0;
            margin-top: 3rem;
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 2rem;
            text-align: left;
        }
        .footer-contact { margin-bottom: 1.5rem; }
        .footer-legal { font-size: 0.85rem; color: var(--text-muted); }

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

        .utility-link { display: inline-block; margin-top: 1rem; font-weight: 600; color: var(--color-accent); }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .category-grid { grid-template-columns: repeat(3, 1fr); }
            .games-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .guide-steps { grid-template-columns: repeat(2, 1fr); }
            .promo-grid { grid-template-columns: repeat(3, 1fr); }
            .usp-grid { grid-template-columns: repeat(2, 1fr); }
            .announcement-list { grid-template-columns: repeat(2, 1fr); }
            .navigator { position: static; height: auto; padding: 0; 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); }
        }