:root {
            --brandPrimary: #007BFF;
            --brandPrimaryHover: #3395FF;
            --brandSecondary: #C0C0C0;
            --brandAccent: #00F5FF;
            --bgMain: #060B1A;
            --bgSurface: #0D152B;
            --bgElevated: #16213D;
            --textPrimary: #E6F0FF;
            --textSecondary: #B0C4DE;
            --textMuted: #78909C;
            --borderDefault: #1C2C55;
            --borderStrong: #2A3F7A;
            --borderBrand: #00F5FF;
            --radiusSm: 6px;
            --radiusMd: 12px;
            --radiusLg: 24px;
            --shadowCard: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --gradBrand: linear-gradient(135deg, #007BFF 0%, #00F5FF 100%);
            --gradHero: radial-gradient(circle at top right, #16213D, #060B1A);
        }

        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(--brandAccent); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: var(--brandPrimaryHover); }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            border-bottom: 1px solid var(--borderDefault);
        }

        .headerLogo { display: flex; align-items: center; gap: 8px; }
        .headerLogo strong { font-size: 16px; font-weight: normal; color: var(--textPrimary); }
        .headerActions { display: flex; gap: 10px; }

        .btnBase {
            min-height: 44px;
            min-inline-size: 44px;
            padding: 12px 18px;
            border-radius: var(--radiusMd);
            font-weight: 600;
            text-align: center;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.2s, background-color 0.3s;
        }
        .btnPrimary { background: var(--gradBrand); color: var(--bgMain); border: none; }
        .btnSecondary { background: var(--bgElevated); color: var(--textPrimary); border: 1px solid var(--borderStrong); }
        .btnPrimary:hover, .btnSecondary:hover { transform: translateY(-2px); }

        main { width: 100%; }
        section { 
            padding: 3rem 0; 
            content-visibility: auto; 
            contain-intrinsic-size: 1px 500px; 
        }

        h1 { font-size: clamp(1.6rem, 6.5vw, 2.75rem); line-height: 1.2; margin-bottom: 1.5rem; color: var(--textPrimary); }
        h2 { font-size: clamp(1.3rem, 5.2vw, 2.25rem); line-height: 1.25; margin-top: 2rem; margin-bottom: 1.5rem; color: var(--textPrimary); }
        h3 { font-size: clamp(1.05rem, 4.2vw, 1.75rem); line-height: 1.3; margin-bottom: 1rem; color: var(--textSecondary); }

        .heroSection { background: var(--gradHero); padding: 4rem 1rem; text-align: center; border-radius: 0 0 var(--radiusLg) var(--radiusLg); }
        .heroIntro { max-width: 800px; margin: 0 auto 2rem; color: var(--textSecondary); }
        .heroTags { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 2rem; }
        .tagPill { background: rgba(0, 245, 255, 0.1); border: 1px solid var(--borderBrand); color: var(--brandAccent); padding: 4px 12px; border-radius: var(--radiusPill); font-size: 0.875rem; }

        .bannerLink { display: block; width: 100%; margin: 2rem 0; }
        .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; margin-bottom: 2rem; }
        .categoryTile { 
            background: var(--bgSurface); 
            border: 1px solid var(--borderDefault); 
            padding: 20px; 
            border-radius: var(--radiusMd); 
            text-align: center; 
            text-decoration: none; 
            color: var(--textPrimary);
            backdrop-filter: blur(10px);
        }
        .categoryTile i { font-size: 2rem; color: var(--brandAccent); margin-bottom: 10px; display: block; }
        .categoryTile .catName { display: block; font-weight: 600; margin-bottom: 5px; }
        .categoryTile .catDesc { font-size: 0.875rem; color: var(--textMuted); }

        .gameGrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .gameCard { 
            background: var(--bgSurface); 
            border-radius: var(--radiusMd); 
            overflow: hidden; 
            text-decoration: none; 
            border: 1px solid var(--borderDefault);
            transition: border-color 0.3s;
        }
        .gameCard:hover { 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); }

        .factTable { width: 100%; border-collapse: collapse; margin-bottom: 1rem; background: var(--bgSurface); border-radius: var(--radiusMd); overflow: hidden; }
        .factTable td { padding: 12px 15px; border-bottom: 1px solid var(--borderDefault); }
        .factTable td:first-child { font-weight: 600; color: var(--textSecondary); width: 40%; }
        .freshnessNotice { font-style: italic; color: var(--textMuted); font-size: 0.875rem; margin-bottom: 1rem; display: block; }
        .termsLink { display: block; text-align: center; margin-top: 1rem; font-size: 0.875rem; color: var(--textMuted); }

        .tocNav { 
            display: flex; 
            overflow-x: auto; 
            gap: 10px; 
            padding-bottom: 10px; 
            margin-bottom: 2rem; 
            scrollbar-width: none; 
        }
        .tocNav::-webkit-scrollbar { display: none; }
        .tocLink { 
            background: var(--bgElevated); 
            padding: 8px 16px; 
            border-radius: var(--radiusPill); 
            white-space: nowrap; 
            font-size: 0.875rem; 
            border: 1px solid var(--borderStrong); 
        }

        .promoContainer { display: flex; flex-direction: column; gap: 20px; }
        .promoCard { 
            background: var(--bgSurface); 
            border: 1px solid var(--borderStrong); 
            padding: 24px; 
            border-radius: var(--radiusLg); 
            display: flex; 
            flex-direction: column; 
            gap: 15px;
        }

        .uspBar { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .uspTile { 
            background: var(--bgElevated); 
            padding: 20px; 
            border-radius: var(--radiusMd); 
            display: flex; 
            gap: 15px; 
            align-items: flex-start;
            border-left: 4px solid var(--brandAccent);
        }
        .uspTile i { font-size: 1.5rem; color: var(--brandAccent); margin-top: 4px; }
        .uspTile strong { display: block; margin-bottom: 5px; color: var(--textPrimary); }
        .uspTile p { margin: 0; font-size: 0.875rem; color: var(--textSecondary); }

        .paymentGrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .paymentCard { 
            background: var(--bgSurface); 
            padding: 20px; 
            border-radius: var(--radiusMd); 
            text-align: center; 
            border: 1px solid var(--borderDefault);
        }
        .paymentCard i { font-size: 2rem; color: var(--brandAccent); margin-bottom: 10px; display: block; }
        .paymentCard strong { display: block; margin-bottom: 8px; color: var(--textPrimary); }
        .paymentCard p { font-size: 0.875rem; color: var(--textMuted); margin: 0; }

        .stepList { display: flex; flex-direction: column; gap: 25px; }
        .stepItem { display: flex; gap: 20px; align-items: flex-start; }
        .stepNum { 
            background: var(--gradBrand); 
            color: var(--bgMain); 
            width: 36px; 
            height: 36px; 
            border-radius: 50%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            font-weight: 800; 
            flex-shrink: 0;
        }
        .stepContent h3 { margin: 0 0 10px 0; }
        .stepContent h3 a { color: inherit; }

        .appSection { text-align: center; max-width: 700px; margin: 0 auto; }

        .guideContainer { display: flex; flex-direction: column; gap: 20px; }
        .guideItem { background: var(--bgSurface); padding: 20px; border-radius: var(--radiusMd); border: 1px solid var(--borderDefault); }
        .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); 
            padding: 20px; 
            border-radius: var(--radiusMd); 
            border: 1px solid var(--borderDefault); 
            display: flex; 
            gap: 15px; 
        }
        .announcementDate { font-size: 0.8rem; color: var(--textMuted); margin-top: 10px; display: block; }

        .faqContainer { display: flex; flex-direction: column; gap: 15px; }
        .faqItem { background: var(--bgSurface); border-radius: var(--radiusMd); overflow: hidden; border: 1px solid var(--borderDefault); }
        .faqItem summary { padding: 15px; cursor: pointer; list-style: none; background: var(--bgElevated); }
        .faqItem summary::-webkit-details-marker { display: none; }
        .faqItem p { padding: 15px; margin: 0; color: var(--textSecondary); }

        .trustSection { background: var(--bgSurface); padding: 30px; border-radius: var(--radiusLg); border: 1px solid var(--borderStrong); }
        .teamCard { margin-top: 2rem; padding: 20px; background: var(--bgMain); border-radius: var(--radiusMd); border: 1px dashed var(--borderStrong); }

        footer { 
            background: var(--bgSurface); 
            padding: 3rem 0 2rem; 
            border-top: 1px solid var(--borderDefault); 
            text-align: center; 
        }
        .footerSitemap { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 10px; 
            max-width: 800px; 
            margin: 0 auto 2rem; 
            text-align: left; 
        }
        .footerSitemap a { font-size: 0.875rem; color: var(--textSecondary); }
        .footerContact { margin-bottom: 2rem; font-size: 0.9rem; }
        .footerLegal { font-size: 0.8rem; color: var(--textMuted); max-width: 700px; margin: 0 auto; }

        .navigator { 
            position: fixed; 
            inset-inline: 0; 
            bottom: 0; 
            background: var(--bgSurface); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            padding: 10px 0 calc(10px + env(safe-area-inset-bottom)); 
            border-top: 1px solid var(--borderStrong); 
            backdrop-filter: blur(15px); 
            z-index: 1000; 
        }
        .navItem { 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            gap: 4px; 
            text-decoration: none; 
            color: var(--textSecondary); 
            font-size: 0.7rem; 
        }
        .navItem i { font-size: 1.2rem; }
        .navItem:hover { color: var(--brandAccent); }

        .utilLink { display: inline-block; margin-top: 15px; color: var(--brandAccent); font-weight: 600; }

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

        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .categoryGrid { grid-template-columns: repeat(4, 1fr); }
            .gameGrid { grid-template-columns: repeat(4, 1fr); }
            .paymentGrid { grid-template-columns: repeat(4, 1fr); }
            .uspBar { grid-template-columns: repeat(4, 1fr); }
            .announcementGrid { grid-template-columns: repeat(2, 1fr); }
        }