:root {
            --brandPrimary: #1A3A5F;
            --brandPrimaryHover: #254D7A;
            --brandSecondary: #C0C0C0;
            --brandSecondaryHover: #DCDCDC;
            --brandAccent: #00F5FF;
            --bgMain: #050B14;
            --bgSurface: #0D1726;
            --bgElevated: #162338;
            --bgOverlay: rgba(5, 11, 20, 0.8);
            --textPrimary: #E6F1FF;
            --textSecondary: #AABBCB;
            --textMuted: #788CA8;
            --textBrandContrast: #050B14;
            --textLink: #00F5FF;
            --textLinkHover: #70F8FF;
            --btnBg: #00F5FF;
            --btnText: #050B14;
            --btnBgHover: #70F8FF;
            --btnTextHover: #050B14;
            --semanticSuccess: #00E676;
            --semanticError: #FF5252;
            --semanticWarning: #FFD740;
            --semanticInfo: #40C4FF;
            --borderDefault: #1C2D46;
            --borderStrong: #2A3F5E;
            --borderBrand: rgba(0, 245, 255, 0.4);
            --radiusSm: 4px;
            --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, 0.6);
            --gradBrand: linear-gradient(135deg, #1A3A5F 0%, #00F5FF 100%);
            --gradHero: radial-gradient(circle at top right, #162338 0%, #050B14 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, video, iframe { 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, .cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 18px;
            border-radius: var(--radiusMd);
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            text-align: center;
        }
        .btnPrimary { background: var(--gradButton); color: var(--btnText); }
        .btnPrimary:hover { transform: translateY(-2px); box-shadow: var(--shadowGlow); color: var(--btnTextHover); }
        .btnSecondary { background: var(--bgElevated); color: var(--textPrimary); border: 1px solid var(--borderBrand); }
        .btnSecondary:hover { background: var(--borderStrong); }

        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(5, 11, 20, 0.8);
            backdrop-filter: blur(10px);
        }
        .headerLogo { display: flex; align-items: center; gap: 8px; }
        .headerLogo strong { font-size: 16px; font-weight: 400; }
        .headerActions { display: flex; gap: 10px; }

        main { width: 100%; }
        section { 
            padding: 40px 0; 
            content-visibility: auto; 
            contain-intrinsic-size: 1px 500px; 
        }
        h1 { font-family: 'Be Vietnam Pro', sans-serif; font-size: clamp(1.6rem, 6.5vw, 2.4rem); line-height: 1.2; margin: 0 0 20px 0; color: var(--textPrimary); }
        h2 { font-family: 'Be Vietnam Pro', sans-serif; font-size: clamp(1.3rem, 5.2vw, 1.8rem); line-height: 1.25; margin-top: 2rem; margin-bottom: 1.5rem; color: var(--textPrimary); }
        h3 { font-family: 'Be Vietnam Pro', sans-serif; font-size: clamp(1.05rem, 4.2vw, 1.25rem); line-height: 1.3; margin: 0 0 10px 0; color: var(--textPrimary); }

        .heroSection { background: var(--gradHero); padding: 40px 0; text-align: center; }
        .heroIntro { max-width: 700px; margin: 0 auto 30px auto; color: var(--textSecondary); }
        .heroCta { display: block; width: 100%; max-width: 400px; margin: 0 auto 20px auto; }
        .heroTags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
        .heroTag { background: rgba(0, 245, 255, 0.1); border: 1px solid var(--borderBrand); color: var(--brandAccent); padding: 4px 12px; border-radius: var(--radiusPill); font-size: 0.85rem; }

        .bannerLink { display: block; width: 100%; margin-bottom: 30px; }
        .bannerImg { width: 100%; aspect-ratio: 2/1; object-fit: cover; border-radius: var(--radiusMd); }

        .categoryGrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .categoryTile { 
            background: var(--bgSurface); 
            border: 1px solid var(--borderDefault); 
            border-radius: var(--radiusMd); 
            padding: 20px; 
            text-align: center; 
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .categoryTile:hover { border-color: var(--brandAccent); background: var(--bgElevated); transform: translateY(-5px); }
        .categoryIcon { font-size: 2rem; color: var(--brandAccent); margin-bottom: 5px; }
        .categoryName { font-size: 1.1rem; display: block; }
        .categoryDesc { font-size: 0.85rem; color: var(--textMuted); }

        .gameGrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .gameCard { 
            background: var(--bgSurface); 
            border-radius: var(--radiusMd); 
            overflow: hidden; 
            border: 1px solid var(--borderDefault); 
            transition: border-color 0.3s ease;
            text-decoration: none;
            display: block;
        }
        .gameCard:hover { border-color: var(--brandAccent); }
        .gameImg { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .gameInfo { padding: 12px; text-align: center; }
        .gameInfo h3 { font-size: 1rem; margin: 0; color: var(--textPrimary); }

        .factTable { width: 100%; border-collapse: collapse; margin: 20px 0; background: var(--bgSurface); border-radius: var(--radiusMd); overflow: hidden; }
        .factTable td { padding: 12px 15px; border-bottom: 1px solid var(--borderDefault); }
        .factLabel { font-weight: 600; color: var(--textSecondary); width: 40%; }
        .factValue { color: var(--textPrimary); }
        .freshnessNotice { font-style: italic; color: var(--textMuted); font-size: 0.9rem; margin-bottom: 15px; }
        .termsLink { display: block; text-align: center; margin-top: 15px; font-size: 0.85rem; color: var(--textMuted); }

        .tocNav { 
            display: flex; 
            overflow-x: auto; 
            gap: 10px; 
            padding: 10px 0; 
            scrollbar-width: none; 
            border-bottom: 1px solid var(--borderDefault);
            margin-bottom: 30px;
        }
        .tocNav::-webkit-scrollbar { display: none; }
        .tocLink { 
            background: var(--bgElevated); 
            color: var(--textSecondary); 
            padding: 8px 16px; 
            border-radius: var(--radiusPill); 
            white-space: nowrap; 
            font-size: 0.9rem; 
            border: 1px solid var(--borderDefault);
        }
        .tocLink:hover { background: var(--brandPrimary); color: var(--textPrimary); }

        .promoGrid { display: flex; flex-direction: column; gap: 20px; }
        .promoCard { 
            background: var(--bgSurface); 
            border: 1px solid var(--borderStrong); 
            border-radius: var(--radiusLg); 
            padding: 25px; 
            display: flex; 
            flex-direction: column; 
            gap: 15px;
            position: relative;
            overflow: hidden;
        }
        .promoCard::before { 
            content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: var(--brandAccent); 
        }

        .uspBar { display: flex; flex-direction: column; gap: 15px; }
        .uspTile { 
            display: flex; 
            align-items: center; 
            gap: 15px; 
            background: var(--bgSurface); 
            padding: 20px; 
            border-radius: var(--radiusMd); 
            border: 1px solid var(--borderDefault);
        }
        .uspIcon { font-size: 1.5rem; color: var(--brandAccent); width: 40px; text-align: center; }
        .uspContent strong { display: block; margin-bottom: 5px; color: var(--textPrimary); }
        .uspContent p { margin: 0; font-size: 0.9rem; color: var(--textSecondary); }

        .paymentGrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .paymentCard { 
            background: var(--bgSurface); 
            border: 1px solid var(--borderDefault); 
            border-radius: var(--radiusMd); 
            padding: 20px; 
            text-align: center; 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            gap: 10px;
        }
        .paymentIcon { font-size: 1.8rem; color: var(--brandAccent); }
        .paymentDesc { font-size: 0.8rem; color: var(--textMuted); }

        .stepList { display: flex; flex-direction: column; gap: 25px; }
        .stepItem { display: flex; gap: 20px; align-items: flex-start; }
        .stepBadge { 
            min-width: 40px; height: 40px; background: var(--brandAccent); color: var(--btnText); 
            border-radius: 50%; display: flex; align-items: center; justify-content: center; 
            font-weight: 700; font-size: 1.2rem; 
        }
        .stepContent h3 { margin: 0 0 10px 0; }
        .stepContent a { color: inherit; text-decoration: none; }

        .downloadBox { 
            background: var(--bgSurface); 
            border: 1px solid var(--borderBrand); 
            border-radius: var(--radiusLg); 
            padding: 30px; 
            text-align: center; 
        }

        .guideGrid { display: flex; flex-direction: column; gap: 20px; }
        .guideItem { 
            background: var(--bgElevated); 
            border-radius: var(--radiusMd); 
            padding: 20px; 
            border-left: 4px solid var(--brandAccent); 
        }
        .guideMeta { font-size: 0.8rem; color: var(--textMuted); margin-bottom: 10px; display: block; }

        .announcementGrid { display: grid; grid-template-columns: 1fr; gap: 15px; }
        .announcementCard { 
            background: var(--bgSurface); 
            border: 1px solid var(--borderDefault); 
            border-radius: var(--radiusMd); 
            padding: 20px; 
            display: flex; 
            gap: 15px; 
        }
        .annoIcon { font-size: 1.2rem; color: var(--brandAccent); margin-top: 5px; }
        .annoDate { font-size: 0.8rem; color: var(--textMuted); display: block; margin-top: 10px; }

        .faqSection { display: flex; flex-direction: column; gap: 15px; }
        details { background: var(--bgSurface); border: 1px solid var(--borderDefault); border-radius: var(--radiusMd); }
        summary { padding: 15px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        summary::-webkit-details-marker { display: none; }
        .faqAnswer { padding: 0 15px 15px 15px; color: var(--textSecondary); border-top: 1px solid var(--borderDefault); padding-top: 15px; }

        .aboutBox { background: var(--bgSurface); border-radius: var(--radiusLg); padding: 30px; line-height: 1.8; }
        .teamCard { 
            margin-top: 25px; 
            background: var(--bgElevated); 
            border: 1px solid var(--borderStrong); 
            border-radius: var(--radiusMd); 
            padding: 20px; 
        }

        .securityBox { background: var(--bgSurface); border: 1px solid var(--borderDefault); border-radius: var(--radiusLg); padding: 30px; }
        .securityList { list-style: none; padding: 0; margin: 0 0 20px 0; }
        .securityList li { margin-bottom: 12px; display: flex; gap: 10px; align-items: center; }
        .securityList i { color: var(--semanticSuccess); }

        footer { 
            background: var(--bgSurface); 
            padding: 40px 0 20px 0; 
            border-top: 1px solid var(--borderStrong); 
            text-align: center; 
        }
        .footerSitemap { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 10px; 
            max-width: 800px; 
            margin: 0 auto 30px auto; 
            text-align: center;
        }
        .footerSitemap a { color: var(--textSecondary); font-size: 0.9rem; }
        .footerContact { margin-bottom: 20px; color: var(--textSecondary); font-size: 0.9rem; }
        .footerLegal { font-size: 0.8rem; color: var(--textMuted); }

        .navigator { 
            position: fixed; 
            inset-inline: 0; 
            bottom: 0; 
            height: 72px; 
            background: rgba(13, 23, 38, 0.95); 
            backdrop-filter: blur(15px); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            border-top: 1px solid var(--borderBrand); 
            padding-bottom: env(safe-area-inset-bottom); 
            z-index: 1000; 
        }
        .navItem { display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--textSecondary); text-decoration: none; font-size: 0.75rem; }
        .navItem i { font-size: 1.2rem; color: var(--brandAccent); }
        .navItem:hover { color: var(--textPrimary); }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .categoryGrid { grid-template-columns: repeat(3, 1fr); }
            .gameGrid { grid-template-columns: repeat(4, 1fr); }
            .paymentGrid { grid-template-columns: repeat(4, 1fr); }
            .stepItem { align-items: center; }
            .navigator { position: static; display: none; }
            footer { padding-bottom: 24px; }
        }

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