:root{--bg:#070b14;--panel:#0f172a;--text:#e2e8f0;--muted:#94a3b8;--line:#1e293b;--brand:#0ea5e9;--brand2:#22d3ee}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at 20% -10%,#123 0,var(--bg) 45%);color:var(--text);line-height:1.65}
a{color:inherit}.container{width:min(1100px,92vw);margin:0 auto}.site-header{position:sticky;top:0;background:rgba(7,11,20,.72);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:10}.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 0}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700}nav a{text-decoration:none;color:var(--muted);margin-left:18px}nav a:hover{color:var(--text)}
.hero{padding:72px 0 40px}.eyebrow{display:inline-block;background:rgba(14,165,233,.16);color:#7dd3fc;padding:4px 10px;border-radius:999px;font-size:13px}h1{font-size:clamp(32px,6vw,56px);line-height:1.1;margin:14px 0 10px;letter-spacing:-.02em}h1 span{display:block;color:var(--brand2)}.sub{max-width:760px;color:var(--muted)}
.hero-actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}.btn{text-decoration:none;padding:10px 16px;border-radius:10px;border:1px solid var(--line);font-weight:600}.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#002033;border:none}
.section{padding:28px 0}.section h2{font-size:30px;margin:0 0 8px}.section-intro{color:var(--muted);margin:0 0 18px}.grid{display:grid;gap:14px}.cards-3{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}.card{background:rgba(15,23,42,.7);border:1px solid var(--line);border-radius:14px;padding:18px}.card h3{margin:0 0 8px;font-size:20px}.card p{margin:0 0 10px;color:#cbd5e1}
.list{padding-left:20px;color:#cbd5e1}.muted{color:var(--muted)}
.site-footer{border-top:1px solid var(--line);margin-top:30px}.footer-wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:16px 0;color:var(--muted);font-size:14px}
.badge{display:inline-block;padding:2px 8px;border:1px solid var(--line);border-radius:999px;color:#7dd3fc;font-size:12px}