:root{--bg:#0a0b10;--fg:#e8eef7;--muted:#8fa3b8;--line:rgba(255,255,255,.08);--acc:#5cc8ff;--acc2:#a78bfa}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--fg);
 font-family:"Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
 -webkit-font-smoothing:antialiased;line-height:1.6}
.aurora{position:fixed;inset:0;pointer-events:none;z-index:0;
 background:radial-gradient(900px 520px at 18% -8%,rgba(60,150,230,.20),transparent 62%),
            radial-gradient(760px 460px at 88% 4%,rgba(150,100,240,.18),transparent 62%)}
.wrap,main,header,footer{position:relative;z-index:1}
.nav{display:flex;align-items:center;gap:24px;padding:22px 40px;max-width:1120px;margin:0 auto}
.brand{font-weight:700;letter-spacing:.02em;color:var(--fg);text-decoration:none;font-size:18px}
.links{display:flex;gap:20px;margin-left:auto}
.links a{color:var(--muted);text-decoration:none;font-size:14px}
.links a:hover{color:var(--fg)}
.badge{font-size:12px;padding:4px 10px;border-radius:999px;color:#bfe6ff;
 border:1px solid rgba(92,200,255,.35);background:rgba(92,200,255,.10)}
main{max-width:1120px;margin:0 auto;padding:40px}
.hero{padding:72px 0 40px;max-width:760px}
.eyebrow{font-size:12px;letter-spacing:.22em;color:var(--acc);margin:0 0 14px}
h1{font-size:clamp(38px,6vw,64px);line-height:1.1;margin:0 0 18px;letter-spacing:-.02em;
 background:linear-gradient(120deg,#fff,#b9dcff 40%,#c9b8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted);font-size:17px;margin:0 0 28px}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 22px;border-radius:12px;
 font-size:15px;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:.18s}
.btn.primary{background:linear-gradient(120deg,#2f8fd6,#7c5cff);color:#fff;box-shadow:0 8px 30px rgba(90,140,255,.28)}
.btn.primary[disabled]{background:rgba(255,255,255,.06);color:#7d8ea0;border-color:var(--line);
 box-shadow:none;cursor:not-allowed}
.btn.ghost{border-color:var(--line);color:var(--fg);background:rgba(255,255,255,.03)}
.btn.ghost:hover{background:rgba(255,255,255,.07)}
.note{color:#6f8399;font-size:13px;margin-top:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;padding:48px 0}
.card{padding:22px;border-radius:20px;border:1px solid var(--line);
 background:rgba(255,255,255,.03);backdrop-filter:blur(20px);
 box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 18px 50px rgba(0,0,0,.35)}
.card h3{margin:0 0 8px;font-size:16px}
.card p{margin:0;color:var(--muted);font-size:14px}
h2{font-size:24px;margin:56px 0 18px;letter-spacing:-.01em}
.steps ol{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.steps li{display:flex;justify-content:space-between;gap:16px;padding:14px 18px;border-radius:14px;
 border:1px solid var(--line);background:rgba(255,255,255,.025)}
.steps li span{color:var(--muted);font-size:13px}
.faq details{border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin-bottom:10px;
 background:rgba(255,255,255,.025)}
.faq summary{cursor:pointer;font-weight:600}
.faq p{color:var(--muted);margin:10px 0 0;font-size:14px}
.foot{max-width:1120px;margin:0 auto;padding:48px 40px 64px;border-top:1px solid var(--line);margin-top:64px}
.foot p{margin:4px 0;color:var(--muted);font-size:13px}
.foot .muted{color:#66798d}
@media(max-width:720px){.nav{padding:18px 20px}.links{display:none}main{padding:20px}.hero{padding:40px 0 20px}}