:root{--bg:#0b1020;--card:#141a2e;--text:#e8ecf6;--muted:#9aa6c3;--accent:#4f8cff;--line:#232b45}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
header{position:sticky;top:0;z-index:20;background:rgba(11,16,32,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;letter-spacing:.5px}
.logo i{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,#4f8cff,#8b5cf6);display:inline-block}
.nav ul{display:flex;gap:28px;list-style:none}
.nav a{color:var(--muted);font-size:15px;transition:.2s}
.nav a:hover,.nav a.on{color:#fff}
.hero{padding:96px 0 72px;background:radial-gradient(900px 420px at 15% 0%,rgba(79,140,255,.20),transparent 70%),radial-gradient(700px 380px at 90% 10%,rgba(139,92,246,.16),transparent 70%)}
.hero h1{font-size:44px;line-height:1.25;letter-spacing:-.5px}
.hero p{margin-top:20px;font-size:18px;color:var(--muted);max-width:720px}
.btns{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.btn{padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;transition:.2s}
.btn-p{background:linear-gradient(135deg,#4f8cff,#8b5cf6);color:#fff}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(79,140,255,.35)}
.btn-s{border:1px solid var(--line);color:var(--text)}
.btn-s:hover{border-color:var(--accent)}
section{padding:64px 0}
h2{font-size:28px;letter-spacing:-.3px;margin-bottom:12px}
.sub{color:var(--muted);margin-bottom:32px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px;transition:.2s}
.card:hover{transform:translateY(-3px);border-color:#33406b}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}
.post{padding:16px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:20px}
.post time{color:var(--muted);font-size:14px;white-space:nowrap}
.prose{max-width:820px}
.prose p{margin:0 0 18px;color:#d5dbeb}
.prose img{max-width:100%;border-radius:14px;margin:18px 0;border:1px solid var(--line)}
.prose strong{color:#fff}
.contact dl{display:grid;grid-template-columns:110px 1fr;gap:14px 20px;margin-top:24px}
.contact dt{color:var(--muted)}
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:14px}
footer .row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer a:hover{color:#fff}
@media(max-width:760px){
.nav ul{display:none}.hero h1{font-size:32px}.hero{padding:64px 0 48px}
section{padding:48px 0}h2{font-size:23px}
}