:root {
            --color-primary: #006D77;
            --color-primary-hover: #00838E;
            --color-secondary: #83C5BE;
            --color-secondary-hover: #99D6D1;
            --color-accent: #FF6B6B;
            --color-bg-main: #012A2D;
            --color-bg-surface: #04363A;
            --color-bg-elevated: #084449;
            --color-text-primary: #E8F6F6;
            --color-text-secondary: #B2D8D8;
            --color-text-muted: #7A9E9E;
            --color-btn-bg: #FF6B6B;
            --color-btn-text: #FFFFFF;
            --color-border: #064247;
            --color-border-strong: #0B5C63;
            --radius-md: 4px;
            --radius-lg: 8px;
            --shadow-card: 0 4px 12px rgba(0,0,0,0.3);
            --grad-brand: linear-gradient(135deg, #006D77 0%, #004C52 100%);
            --grad-btn: linear-gradient(180deg, #FF6B6B 0%, #EE5253 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;
            background-color: var(--color-bg-main);
            color: var(--color-text-primary);
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--color-secondary); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--color-accent); }
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-block: 12px;
            border-bottom: 1px solid var(--color-border);
        }
        .header-logo-link { display: flex; align-items: center; gap: 8px; }
        .header-logo-link strong { font-size: 16px; font-weight: 400; }
        .header-actions { display: flex; gap: 10px; }
        .btn-nav {
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 14px;
            background: var(--color-bg-surface);
            color: var(--color-text-primary);
            border: 1px solid var(--color-border-strong);
        }
        .btn-nav-highlight { background: var(--color-btn-bg); color: var(--color-btn-text); border: none; }
        main { width: 100%; }
        .hero-section { padding-block: 40px 20px; text-align: center; }
        h1 {
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            margin-bottom: 1rem;
            color: var(--color-text-primary);
        }
        .hero-intro { max-width: 700px; margin: 0 auto 24px; color: var(--color-text-secondary); }
        .btn-cta-main {
            display: block;
            width: 100%;
            max-width: 400px;
            margin: 0 auto;
            padding: 16px;
            background: var(--grad-btn);
            color: #fff;
            text-align: center;
            font-weight: 700;
            border-radius: var(--radius-lg);
            box-shadow: 0 4px 15px rgba(255,107,107,0.3);
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
            margin-top: 24px;
        }
        .tag-pill {
            background: var(--color-bg-surface);
            border: 1px solid var(--color-border-strong);
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .banner-wrap { margin-bottom: 30px; line-height: 0; }
        .category-hub {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 40px;
        }
        .cat-tile {
            background: var(--color-bg-surface);
            padding: 16px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .cat-tile i { font-size: 24px; color: var(--color-accent); }
        .cat-tile strong { display: block; font-size: 16px; color: var(--color-text-primary); }
        .cat-tile span { font-size: 12px; color: var(--color-text-muted); line-height: 1.4; }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 30px;
        }
        .game-card {
            background: var(--color-bg-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            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 {
            font-size: 14px;
            margin: 0;
            padding: 10px;
            text-align: center;
            color: var(--color-text-primary);
        }
        h2 {
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: clamp(1.3rem, 5.2vw, 1.8rem);
            line-height: 1.25;
            margin-top: 40px;
            margin-bottom: 20px;
            color: var(--color-text-primary);
        }
        .facts-wrap {
            background: var(--color-bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-strong);
            margin-bottom: 30px;
        }
        .freshness-notice {
            font-size: 13px;
            font-style: italic;
            color: var(--color-text-muted);
            margin-bottom: 15px;
            display: block;
        }
        .facts-table {
            width: 100%;
            border-collapse: collapse;
        }
        .facts-table td {
            padding: 10px;
            border-bottom: 1px solid var(--color-border);
            font-size: 14px;
        }
        .facts-label { color: var(--color-text-muted); width: 40%; }
        .facts-value { color: var(--color-text-primary); font-weight: 500; }
        .terms-link-wrap {
            margin-top: 12px;
            text-align: center;
            font-size: 13px;
        }
        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 10px;
            padding-bottom: 10px;
            margin-bottom: 30px;
            scrollbar-width: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            white-space: nowrap;
            background: var(--color-bg-elevated);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            border: 1px solid var(--color-border-strong);
        }
        .promo-section { display: flex; flex-direction: column; gap: 16px; }
        .promo-card {
            background: var(--color-bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            border-left: 4px solid var(--color-accent);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .promo-card h3 { margin: 0; color: var(--color-text-primary); }
        .promo-card p { margin: 0; color: var(--color-text-secondary); font-size: 14px; }
        .btn-promo {
            align-self: flex-start;
            padding: 10px 20px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
        }
        .usp-grid {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 40px;
        }
        .usp-tile {
            display: flex;
            gap: 16px;
            background: var(--color-bg-surface);
            padding: 16px;
            border-radius: var(--radius-lg);
            align-items: center;
        }
        .usp-tile i { font-size: 28px; color: var(--color-accent); width: 40px; text-align: center; }
        .usp-content strong { display: block; color: var(--color-text-primary); font-size: 16px; }
        .usp-content span { font-size: 14px; color: var(--color-text-muted); }
        .step-list { display: flex; flex-direction: column; gap: 20px; }
        .step-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .step-num {
            width: 32px;
            height: 32px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .step-body h3 { margin: 0 0 8px 0; font-size: 17px; }
        .step-body h3 a { color: inherit; }
        .step-body p { margin: 0; font-size: 14px; color: var(--color-text-secondary); }
        .mobile-access-box {
            background: var(--color-bg-surface);
            padding: 24px;
            border-radius: var(--radius-lg);
            text-align: center;
            border: 1px solid var(--color-border-strong);
        }
        .btn-download {
            display: block;
            max-width: 300px;
            margin: 20px auto;
            padding: 14px;
            background: var(--grad-btn);
            color: #fff;
            font-weight: 700;
            border-radius: var(--radius-lg);
        }
        .guide-item {
            background: var(--color-bg-surface);
            padding: 20px;
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            border: 1px solid var(--color-border);
        }
        .guide-meta { font-size: 12px; color: var(--color-text-muted); display: block; margin-bottom: 10px; }
        .announcement-list { display: flex; flex-direction: column; gap: 12px; }
        .ann-item {
            background: var(--color-bg-surface);
            padding: 16px;
            border-radius: var(--radius-lg);
            display: flex;
            gap: 12px;
            border: 1px solid var(--color-border);
        }
        .ann-item i { color: var(--color-accent); margin-top: 4px; }
        .ann-text h3 { margin: 0 0 8px 0; font-size: 15px; }
        .ann-text p { margin: 0 0 8px 0; font-size: 13px; color: var(--color-text-secondary); }
        .ann-date { font-size: 12px; color: var(--color-text-muted); font-weight: 500; }
        .faq-wrap { display: flex; flex-direction: column; gap: 12px; }
        details { background: var(--color-bg-surface); border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
        summary { padding: 16px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        summary h3 { margin: 0; font-size: 16px; color: var(--color-text-primary); pointer-events: none; }
        .faq-ans { padding: 0 16px 16px; font-size: 14px; color: var(--color-text-secondary); }
        .about-box { background: var(--color-bg-surface); padding: 24px; border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
        .team-card {
            margin-top: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--color-border-strong);
        }
        .team-card h3 { font-size: 18px; margin: 0 0 12px 0; color: var(--color-accent); }
        .team-card p { font-size: 14px; margin-bottom: 8px; }
        .security-box {
            background: var(--color-bg-surface);
            padding: 24px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-strong);
            margin-bottom: 20px;
        }
        .sec-links { display: flex; gap: 16px; margin: 20px 0; flex-wrap: wrap; }
        .sec-link { padding: 8px 12px; background: var(--color-bg-elevated); border-radius: var(--radius-md); font-size: 13px; }
        footer {
            margin-top: 40px;
            padding-block: 30px 0;
            border-top: 1px solid var(--color-border);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 24px;
            font-size: 13px;
        }
        .footer-contact { margin-bottom: 20px; font-size: 14px; }
        .footer-legal { font-size: 12px; color: var(--color-text-muted); line-height: 1.5; }
        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 64px;
            background: var(--color-bg-surface);
            border-top: 1px solid var(--color-border-strong);
            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: 11px;
            text-decoration: none;
        }
        .nav-item i { font-size: 20px; }
        .nav-item:hover { color: var(--color-accent); }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .category-hub { grid-template-columns: repeat(3, 1fr); }
            .game-grid { grid-template-columns: repeat(3, 1fr); }
            .promo-section { flex-direction: row; }
            .promo-card { flex: 1; }
            .usp-grid { grid-template-columns: repeat(2, 1fr); display: grid; }
            .navigator { display: none; }
        }
        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .category-hub { grid-template-columns: repeat(4, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .promo-section { flex-direction: row; }
        }
        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }
        .util-more { text-align: center; margin-top: 15px; display: block; font-weight: 600; }