:root {
            --brandPrimary: #0B2447;
            --brandPrimaryHover: #153B7A;
            --brandSecondary: #A8B2D1;
            --brandSecondaryHover: #C4CEDD;
            --brandAccent: #00F5FF;
            --bgMain: #050B18;
            --bgSurface: #0D1629;
            --bgElevated: #16223D;
            --bgOverlay: rgba(5, 11, 24, 0.75);
            --textPrimary: #E6EBF5;
            --textSecondary: #B0B9D1;
            --textMuted: #7A86A3;
            --textContrast: #050B18;
            --textLink: #00F5FF;
            --textLinkHover: #70F9FF;
            --btnBg: #00F5FF;
            --btnText: #050B18;
            --btnBgHover: #70F9FF;
            --borderDefault: #1E2D4B;
            --borderStrong: #2C3E61;
            --borderBrand: #00F5FF;
            --radiusSm: 6px;
            --radiusMd: 12px;
            --radiusLg: 24px;
            --radiusPill: 9999px;
            --shadowCard: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --shadowElevated: 0 12px 40px 0 rgba(0, 0, 0, 0.5);
            --shadowGlow: 0 0 15px rgba(0, 245, 255, 0.4);
            --gradBrand: linear-gradient(135deg, #0B2447 0%, #00F5FF 100%);
            --gradHero: radial-gradient(circle at top right, #16223D 0%, #050B18 100%);
            --gradButton: linear-gradient(180deg, #00F5FF 0%, #00D1DB 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(--bgMain);
            color: var(--textPrimary);
        }

        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--textLink); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: var(--textLinkHover); }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 24px;
            border-radius: var(--radiusMd);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            text-align: center;
        }

        .btnPrimary {
            background: var(--gradButton);
            color: var(--textContrast);
        }
        .btnPrimary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadowGlow);
            background: var(--btnBgHover);
        }

        .btnSecondary {
            background: var(--bgElevated);
            color: var(--textPrimary);
            border: 1px solid var(--borderBrand);
        }
        .btnSecondary:hover {
            background: var(--brandPrimaryHover);
        }

        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(5, 11, 24, 0.8);
            backdrop-filter: blur(10px);
        }

        .headerLogo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .headerLogo strong {
            font-size: 16px;
            font-weight: 400;
            color: var(--textPrimary);
        }

        .headerNav {
            display: flex;
            gap: 12px;
        }

        main {
            width: 100%;
        }

        .heroSection {
            text-align: center;
            padding: 40px 0;
            background: var(--gradHero);
        }
        .heroSection h1 {
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--textPrimary);
        }
        .heroIntro {
            max-width: 800px;
            margin: 0 auto 30px;
            color: var(--textSecondary);
        }
        .heroCta {
            display: block;
            width: 100%;
            max-width: 400px;
            margin: 0 auto 24px;
        }
        .heroTags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .tagPill {
            background: var(--bgElevated);
            border: 1px solid var(--borderBrand);
            padding: 4px 12px;
            border-radius: var(--radiusPill);
            font-size: 0.85rem;
            color: var(--brandAccent);
        }

        .bannerLink {
            display: block;
            width: 100%;
            aspect-ratio: 2 / 1;
            overflow: hidden;
            border-radius: var(--radiusMd);
            margin: 20px 0;
        }

        .catGrid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin: 40px 0;
        }
        .catTile {
            background: var(--bgSurface);
            border: 1px solid var(--borderDefault);
            padding: 20px;
            border-radius: var(--radiusMd);
            text-align: center;
            transition: all 0.3s ease;
        }
        .catTile:hover {
            border-color: var(--brandAccent);
            background: var(--bgElevated);
        }
        .catTile i {
            font-size: 2rem;
            color: var(--brandAccent);
            margin-bottom: 12px;
        }
        .catTile strong {
            display: block;
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--textPrimary);
        }
        .catTile span {
            font-size: 0.85rem;
            color: var(--textMuted);
        }

        .sectionTitle {
            font-size: clamp(1.3rem, 5.2vw, 1.8rem);
            line-height: 1.25;
            margin-top: 2rem;
            margin-bottom: 24px;
            color: var(--textPrimary);
            text-align: center;
        }

        .gameGrid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .gameCard {
            background: var(--bgSurface);
            border: 1px solid var(--borderDefault);
            border-radius: var(--radiusMd);
            overflow: hidden;
            transition: transform 0.3s ease;
        }
        .gameCard:hover {
            transform: translateY(-5px);
            border-color: var(--brandAccent);
        }
        .gameCard img {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
        }
        .gameCard h3 {
            font-size: 1rem;
            padding: 12px;
            margin: 0;
            text-align: center;
            color: var(--textPrimary);
        }

        .factsContainer {
            background: var(--bgSurface);
            border-radius: var(--radiusLg);
            padding: 24px;
            border: 1px solid var(--borderStrong);
            margin: 40px 0;
        }
        .freshNotice {
            font-style: italic;
            font-size: 0.9rem;
            color: var(--textMuted);
            margin-bottom: 20px;
            text-align: center;
        }
        .factsTable {
            width: 100%;
            border-collapse: collapse;
        }
        .factsTable td {
            padding: 12px;
            border-bottom: 1px solid var(--borderDefault);
        }
        .factsLabel {
            font-weight: 600;
            color: var(--textSecondary);
            width: 40%;
        }
        .factsValue {
            color: var(--textPrimary);
            text-align: right;
        }
        .termsLink {
            display: block;
            text-align: center;
            margin-top: 16px;
            font-size: 0.85rem;
            color: var(--textMuted);
        }

        .tocNav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 16px 0;
            scrollbar-width: none;
        }
        .tocNav::-webkit-scrollbar { display: none; }
        .tocLink {
            white-space: nowrap;
            background: var(--bgElevated);
            padding: 8px 16px;
            border-radius: var(--radiusPill);
            font-size: 0.9rem;
            border: 1px solid var(--borderDefault);
        }

        .promoGrid {
            display: grid;
            gap: 20px;
            margin-bottom: 40px;
        }
        .promoCard {
            background: var(--bgSurface);
            border: 1px solid var(--borderBrand);
            border-radius: var(--radiusLg);
            padding: 24px;
            text-align: center;
        }
        .promoCard h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
            color: var(--brandAccent);
        }
        .promoText {
            color: var(--textSecondary);
            margin-bottom: 20px;
        }

        .uspBar {
            display: grid;
            gap: 20px;
            margin: 40px 0;
        }
        .uspTile {
            background: var(--bgElevated);
            border-left: 4px solid var(--brandAccent);
            padding: 16px;
            border-radius: var(--radiusSm);
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .uspTile i {
            font-size: 1.5rem;
            color: var(--brandAccent);
        }
        .uspContent strong {
            display: block;
            color: var(--textPrimary);
            margin-bottom: 4px;
        }
        .uspContent p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--textSecondary);
        }

        .paymentGrid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 40px;
        }
        .payCard {
            background: var(--bgSurface);
            border: 1px solid var(--borderDefault);
            padding: 20px;
            border-radius: var(--radiusMd);
            text-align: center;
        }
        .payCard i {
            font-size: 2rem;
            color: var(--brandAccent);
            margin-bottom: 12px;
        }
        .payCard strong {
            display: block;
            margin-bottom: 8px;
            color: var(--textPrimary);
        }
        .payCard p {
            font-size: 0.85rem;
            color: var(--textMuted);
            margin: 0;
        }

        .stepList {
            display: grid;
            gap: 24px;
            margin-bottom: 40px;
        }
        .stepItem {
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .stepBadge {
            background: var(--brandAccent);
            color: var(--textContrast);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }
        .stepContent h3 {
            margin: 0 0 8px;
            font-size: 1.2rem;
        }
        .stepContent a {
            color: inherit;
        }

        .mobileSection {
            background: var(--bgSurface);
            padding: 30px 20px;
            border-radius: var(--radiusLg);
            text-align: center;
            margin-bottom: 40px;
        }

        .guideGrid {
            display: grid;
            gap: 20px;
            margin-bottom: 40px;
        }
        .guideItem {
            background: var(--bgElevated);
            padding: 20px;
            border-radius: var(--radiusMd);
        }
        .guideMeta {
            font-size: 0.8rem;
            color: var(--textMuted);
            margin-bottom: 12px;
            display: block;
        }

        .announcementGrid {
            display: grid;
            gap: 16px;
            margin-bottom: 40px;
        }
        .announceCard {
            background: var(--bgSurface);
            border: 1px solid var(--borderDefault);
            padding: 20px;
            border-radius: var(--radiusMd);
            display: flex;
            gap: 16px;
        }
        .announceCard i {
            color: var(--brandAccent);
            font-size: 1.2rem;
            margin-top: 4px;
        }
        .announceDate {
            display: block;
            font-size: 0.8rem;
            color: var(--textMuted);
            margin-top: 8px;
        }

        .faqList {
            display: grid;
            gap: 12px;
            margin-bottom: 40px;
        }
        .faqItem details {
            background: var(--bgSurface);
            border: 1px solid var(--borderDefault);
            border-radius: var(--radiusMd);
        }
        .faqItem summary {
            padding: 16px;
            cursor: pointer;
            list-style: none;
            color: var(--textPrimary);
        }
        .faqItem summary h3 {
            display: inline;
            font-size: 1.1rem;
            margin: 0;
        }
        .faqAnswer {
            padding: 0 16px 16px;
            color: var(--textSecondary);
            font-size: 0.95rem;
        }

        .aboutSection {
            background: var(--bgSurface);
            padding: 30px;
            border-radius: var(--radiusLg);
            margin-bottom: 40px;
        }
        .teamCard {
            background: var(--bgElevated);
            padding: 20px;
            border-radius: var(--radiusMd);
            margin-top: 24px;
            border: 1px solid var(--borderStrong);
        }

        .securitySection {
            padding: 30px 0;
            margin-bottom: 40px;
        }
        .securityGrid {
            display: grid;
            gap: 20px;
            margin-bottom: 24px;
        }
        .securityBox {
            background: var(--bgElevated);
            padding: 20px;
            border-radius: var(--radiusMd);
        }

        footer {
            background: var(--bgSurface);
            padding: 40px 0 20px;
            border-top: 1px solid var(--borderDefault);
        }
        .footerSitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-bottom: 30px;
        }
        .footerSitemap a {
            color: var(--textSecondary);
            font-size: 0.9rem;
        }
        .footerContact {
            text-align: center;
            margin-bottom: 20px;
            color: var(--textSecondary);
        }
        .footerLegal {
            text-align: center;
            font-size: 0.85rem;
            color: var(--textMuted);
        }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: var(--bgSurface);
            border-top: 1px solid var(--borderBrand);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 1000;
        }
        .navItem {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            color: var(--textSecondary);
            font-size: 0.75rem;
        }
        .navItem i {
            font-size: 1.2rem;
        }
        .navItem:hover {
            color: var(--brandAccent);
        }

        .utilityLink {
            display: inline-block;
            margin-top: 12px;
            font-weight: 600;
            color: var(--brandAccent);
        }

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

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .catGrid { grid-template-columns: repeat(3, 1fr); }
            .gameGrid { grid-template-columns: repeat(3, 1fr); }
            .paymentGrid { grid-template-columns: repeat(4, 1fr); }
            .stepList { grid-template-columns: repeat(2, 1fr); }
            .navigator { display: none; }
        }

        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .catGrid { grid-template-columns: repeat(4, 1fr); }
            .gameGrid { grid-template-columns: repeat(4, 1fr); }
            .paymentGrid { grid-template-columns: repeat(7, 1fr); }
            .stepList { grid-template-columns: repeat(4, 1fr); }
        }