:root{--red:rgb(213,5,5);--dark:#151515;--text:#2b2b2b;--muted:#666;--line:#e8e8e8;--bg:#f6f6f6;--soft:#fff1f1}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#f6f6f6;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}a{text-decoration:none;color:inherit}img{max-width:100%;height:auto;display:block}.container{width:min(1220px,calc(100% - 32px));margin:0 auto}.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:99}.topbar{height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}.logo img{height:42px;width:auto}.desktop-nav{display:none;align-items:center;gap:24px;flex:1;justify-content:center}.desktop-nav a{font-weight:700;color:#333;white-space:nowrap}.desktop-nav a.active,.desktop-nav a:hover{color:var(--red)}.search-icon{width:20px;height:20px;border:2px solid 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10px}.app-showcase{background:#fff;border-radius:26px;border:1px solid var(--line);padding:24px}.security-section .info-card{border-top:4px solid var(--red)}.responsible-play-section{background:var(--soft);border-top:1px solid rgba(213,5,5,.12);border-bottom:1px solid rgba(213,5,5,.12)}.responsible-play-section .content-card{background:#fff}.page-hero{padding:44px 0 22px;background:#fff;border-bottom:1px solid var(--line)}.content-section{padding:30px 0}.content-section .content-card{margin-bottom:18px}.cta{background:#111;color:#fff;border-radius:26px;padding:32px;text-align:center}.cta h2{color:#fff;margin-top:0}.site-footer{background:#202020;color:#eee;padding:44px 0 20px}.footer-grid{display:grid;gap:24px}.footer-logo{height:42px;margin-bottom:12px}.site-footer h3{color:#fff}.site-footer a{display:block;color:#ddd;margin:8px 0}.footer-bottom{border-top:1px solid 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