:root{--p:#22d3ee;--s:#a855f7;--bg:#0a0a14;--c:#e2e8f0;--m:#94a3b8;--card:#13132a}
*{box-sizing:border-box;margin:0;padding:0}body{font-family:"PingFang SC",sans-serif;background:var(--bg);color:var(--c);min-height:100vh;background-image:radial-gradient(circle at 20% 0%,rgba(168,85,247,.15),transparent 40%),radial-gradient(circle at 80% 50%,rgba(34,211,238,.12),transparent 40%)}
.xx813839-hdr{padding:22px 0;border-bottom:1px solid rgba(168,85,247,.3)}
.xx813839-wrap{max-width:1240px;margin:0 auto;padding:0 22px}
.xx813839-logo{font-size:1.7rem;font-weight:900;background:linear-gradient(90deg,var(--p),var(--s));-webkit-background-clip:text;color:transparent;letter-spacing:1px}
.xx813839-nav{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}
.xx813839-nav a{text-decoration:none;color:var(--c);padding:7px 16px;border:1px solid rgba(34,211,238,.4);border-radius:30px;font-size:.88rem;transition:.3s}
.xx813839-nav a:hover,.xx813839-nav a.on{background:linear-gradient(90deg,var(--p),var(--s));color:#0a0a14;border-color:transparent;box-shadow:0 0 20px rgba(34,211,238,.4)}
.xx813839-hero{background:var(--card);border:1px solid rgba(34,211,238,.2);padding:32px;border-radius:16px;margin:24px 0;box-shadow:0 0 40px rgba(168,85,247,.1)}
.xx813839-hero h1{font-size:1.9rem;background:linear-gradient(90deg,var(--p),var(--s));-webkit-background-clip:text;color:transparent;margin-bottom:12px}
.xx813839-hero p{color:var(--m)}
.xx813839-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;margin:24px 0}
.xx813839-card{background:var(--card);border:1px solid rgba(168,85,247,.2);border-radius:12px;overflow:hidden;transition:.3s}
.xx813839-card:hover{border-color:var(--p);transform:translateY(-4px);box-shadow:0 0 25px rgba(34,211,238,.25)}
.xx813839-card img{width:100%;height:170px;object-fit:cover;opacity:.92}.xx813839-card .b{padding:14px}
.xx813839-card h3{font-size:.98rem;margin-bottom:6px}.xx813839-card .meta{font-size:.78rem;color:var(--m);display:flex;justify-content:space-between}
.xx813839-sec{background:var(--card);border:1px solid rgba(34,211,238,.15);padding:26px;border-radius:14px;margin:22px 0}
.xx813839-sec h2{color:var(--p);font-size:1.25rem;margin-bottom:16px;text-shadow:0 0 12px rgba(34,211,238,.4)}
.xx813839-rev{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:14px}
.xx813839-rev .it{background:rgba(255,255,255,.03);border-left:2px solid var(--s);padding:12px 14px;border-radius:6px}
.xx813839-rev .it b{color:var(--p)}.xx813839-rev .it p{color:var(--m);font-size:.88rem;margin-top:6px}
.xx813839-faq dt{color:var(--p);font-weight:700;margin-top:12px}.xx813839-faq dd{color:var(--m);margin-top:4px;font-size:.9rem}
.xx813839-ftr{border-top:1px solid rgba(168,85,247,.25);padding:22px 0;margin-top:30px;text-align:center;color:var(--m);font-size:.85rem}