:root {
            --p-primary: #0D2B45;
            --p-primary-hover: #153C5E;
            --p-secondary: #C0C0C8;
            --p-secondary-hover: #E2E2E8;
            --p-accent: #00F5FF;
            --b-main: #050D17;
            --b-surface: #0C1A2B;
            --b-elevated: #16273D;
            --t-primary: #F0F4F8;
            --t-secondary: #B0C4DE;
            --t-muted: #64748B;
            --t-link: #00F5FF;
            --t-link-hover: #70F7FF;
            --btn-bg: #00F5FF;
            --btn-text: #050D17;
            --btn-hover-bg: #70F7FF;
            --border-def: #1E3A5F;
            --border-brand: #00F5FF;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --radius-pill: 9999px;
            --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
            --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));
            background-color: var(--b-main);
            color: var(--t-primary);
            overflow-x: hidden;
        }

        h1, h2, h3 {
            font-family: 'Oswald', sans-serif;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.2;
            color: var(--t-primary);
            margin: 0;
        }

        h1 { font-size: clamp(1.6rem, 6.5vw, 2.4rem); text-transform: uppercase; font-style: italic; }
        h2 { font-size: clamp(1.3rem, 5.2vw, 1.8rem); margin-top: 2.5rem; margin-bottom: 1.2rem; position: relative; padding-left: 12px; border-left: 4px solid var(--p-accent); }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.25rem); margin-bottom: 0.8rem; }

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

        img { max-width: 100%; height: auto; display: block; font-style: italic; }

        .btn-base {
            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;
            transition: all 0.3s ease;
            border: none;
            text-align: center;
        }

        .btn-primary { background: linear-gradient(to bottom, var(--btn-bg) 0%, #00D1DD 100%); color: var(--btn-text); }
        .btn-primary:hover { background: var(--btn-hover-bg); transform: translateY(-2px); box-shadow: var(--glow); }
        .btn-outline { background: transparent; border: 2px solid var(--p-accent); color: var(--p-accent); }
        .btn-outline:hover { background: var(--p-accent); color: var(--b-main); }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-def);
        }
        .header-logo-link { display: flex; align-items: center; gap: 8px; color: var(--t-primary); }
        .header-logo-link strong { font-size: 16px; font-weight: 400; }
        .header-auth { display: flex; gap: 10px; }

        .hero-section { padding: 2rem 0; text-align: center; }
        .hero-intro { max-width: 800px; margin: 0 auto 1.5rem; }
        .hero-intro p { color: var(--t-secondary); margin-bottom: 1.5rem; }
        .hero-cta-wrap { margin-bottom: 1.5rem; }
        .hero-tags { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
        .tag-pill { background: var(--b-elevated); color: var(--t-secondary); padding: 4px 12px; border-radius: var(--radius-pill); font-size: 0.85rem; border: 1px solid var(--border-def); }

        .banner-link { display: block; width: 100%; margin: 1.5rem 0; border-radius: var(--radius-lg); overflow: hidden; }
        .banner-link img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }

        .category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 2rem; }
        .cat-tile { background: var(--b-surface); padding: 16px; border-radius: var(--radius-lg); text-align: center; border: 1px solid var(--border-def); display: flex; flex-direction: column; align-items: center; gap: 8px; }
        .cat-tile i { font-size: 1.5rem; color: var(--p-accent); }
        .cat-tile span { font-weight: 600; color: var(--t-primary); display: block; }
        .cat-tile p { font-size: 0.8rem; color: var(--t-muted); margin: 0; }

        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 2rem; }
        .game-card { background: var(--b-surface); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-def); transition: transform 0.2s ease; }
        .game-card:hover { transform: scale(1.03); border-color: var(--p-accent); }
        .game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-card h3 { padding: 12px; font-size: 1rem; text-align: center; color: var(--t-primary); margin: 0; }

        .facts-container { background: var(--b-surface); border-radius: var(--radius-lg); padding: 20px; border: 1px solid var(--border-def); margin-bottom: 1rem; }
        .facts-notice { font-style: italic; color: var(--t-muted); font-size: 0.85rem; margin-bottom: 1rem; display: block; }
        .facts-table { width: 100%; border-collapse: collapse; }
        .facts-table tr { border-bottom: 1px solid var(--border-def); }
        .facts-table td { padding: 12px 8px; font-size: 0.9rem; }
        .facts-label { color: var(--t-secondary); font-weight: 500; width: 40%; }
        .facts-value { color: var(--t-primary); text-align: right; }
        .facts-footer-link { display: block; text-align: center; margin-top: 12px; font-size: 0.8rem; color: var(--t-muted); }

        .toc-nav { display: flex; overflow-x: auto; gap: 12px; padding: 12px 0; margin-bottom: 2rem; scrollbar-width: none; }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link { background: var(--b-elevated); color: var(--t-primary); white-space: nowrap; padding: 8px 16px; border-radius: var(--radius-pill); font-size: 0.9rem; border: 1px solid var(--border-def); }

        .promo-list { display: flex; flex-direction: column; gap: 16px; }
        .promo-card { background: var(--b-surface); padding: 20px; border-radius: var(--radius-lg); border: 1px solid var(--border-def); display: flex; flex-direction: column; gap: 12px; }
        .promo-card h3 { color: var(--p-accent); }
        .promo-card p { color: var(--t-secondary); margin: 0; }

        .usp-grid { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: 2rem; }
        .usp-tile { background: var(--b-elevated); padding: 16px; border-radius: var(--radius-lg); display: flex; gap: 15px; align-items: flex-start; }
        .usp-tile i { font-size: 1.2rem; color: var(--p-accent); margin-top: 3px; }
        .usp-content strong { display: block; color: var(--t-primary); margin-bottom: 4px; }
        .usp-content p { margin: 0; font-size: 0.9rem; color: var(--t-secondary); }

        .guide-step { display: flex; gap: 15px; margin-bottom: 20px; background: var(--b-surface); padding: 20px; border-radius: var(--radius-lg); align-items: center; }
        .step-num { background: var(--p-accent); color: var(--b-main); width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; flex-shrink: 0; }
        .step-text h3 { margin: 0 0 8px 0; }
        .step-text a { color: inherit; text-decoration: none; }

        .download-section { background: linear-gradient(135deg, var(--b-surface) 0%, var(--b-main) 100%); padding: 2rem; border-radius: var(--radius-lg); text-align: center; border: 1px solid var(--border-def); }
        .download-text { color: var(--t-secondary); margin-bottom: 1.5rem; }

        .payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .pay-card { background: var(--b-surface); padding: 16px; border-radius: var(--radius-lg); text-align: center; border: 1px solid var(--border-def); display: flex; flex-direction: column; align-items: center; gap: 8px; }
        .pay-card i { font-size: 1.5rem; color: var(--t-primary); }
        .pay-card strong { display: block; font-size: 0.9rem; }
        .pay-card p { font-size: 0.75rem; color: var(--t-muted); margin: 0; }

        .player-guide-item { background: var(--b-surface); padding: 20px; border-radius: var(--radius-lg); margin-bottom: 16px; border-left: 4px solid var(--p-accent); }
        .guide-meta { font-size: 0.8rem; color: var(--t-muted); display: block; margin-bottom: 8px; }

        .announcement-item { display: flex; gap: 12px; background: var(--b-surface); padding: 16px; border-radius: var(--radius-lg); margin-bottom: 12px; border: 1px solid var(--border-def); }
        .announcement-item i { color: var(--p-accent); font-size: 1.2rem; }
        .announcement-content h3 { font-size: 1rem; margin: 0 0 8px 0; }
        .announcement-content p { font-size: 0.9rem; color: var(--t-secondary); margin: 0 0 8px 0; }
        .announcement-date { font-size: 0.75rem; color: var(--t-muted); }

        .faq-item { background: var(--b-surface); margin-bottom: 12px; border-radius: var(--radius-lg); border: 1px solid var(--border-def); overflow: hidden; }
        .faq-item summary { padding: 16px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary h3 { margin: 0; font-size: 1rem; text-align: left; }
        .faq-answer { padding: 0 16px 16px; color: var(--t-secondary); font-size: 0.95rem; }

        .about-section { background: var(--b-surface); padding: 2rem; border-radius: var(--radius-lg); border: 1px solid var(--border-def); }
        .team-card { background: var(--b-elevated); padding: 20px; border-radius: var(--radius-lg); margin-top: 20px; border: 1px solid var(--border-brand); }

        .security-section { padding: 2rem 0; border-top: 1px solid var(--border-def); }
        .security-grid { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: 1.5rem; }
        .sec-item { background: var(--b-surface); padding: 16px; border-radius: var(--radius-lg); border: 1px solid var(--border-def); }

        footer { padding: 2rem 0; background: var(--b-main); border-top: 1px solid var(--border-def); margin-top: 3rem; }
        .footer-sitemap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 2rem; }
        .footer-sitemap a { color: var(--t-secondary); font-size: 0.85rem; }
        .footer-contact { text-align: center; margin-bottom: 1.5rem; color: var(--t-secondary); font-size: 0.9rem; }
        .footer-legal { text-align: center; color: var(--t-muted); font-size: 0.8rem; max-width: 600px; margin: 0 auto; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--b-surface);
            border-top: 1px solid var(--border-def);
            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; color: var(--t-secondary); font-size: 0.7rem; gap: 4px; }
        .nav-item i { font-size: 1.2rem; }

        .utility-link { color: var(--t-link); font-weight: 600; text-decoration: underline; }

        @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(2, 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-grid { grid-template-columns: repeat(4, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .usp-grid { grid-template-columns: repeat(4, 1fr); }
        }

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