:root{
  --bg:#0b0e14; --bg2:#111624; --card:#151b2b; --line:#232c42;
  --fg:#e8ecf5; --muted:#98a2b8; --brand:#6d6cff; --brand2:#8f7bff;
  --ok:#2ecc9b; --warn:#ffb648;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:radial-gradient(1200px 600px at 50% -200px,#1a2140 0%,var(--bg) 60%) no-repeat,var(--bg);
  color:var(--fg); font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:20;backdrop-filter:blur(12px);background:rgba(11,14,20,.72);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:22px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--fg)}
.logo .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center;font-size:15px}
.nav .spacer{flex:1}
.nav a.link{color:var(--muted);font-size:15px}
.nav a.link:hover{color:var(--fg);text-decoration:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:12px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:.15s}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 8px 26px rgba(109,108,255,.32)}
.btn.primary:hover{transform:translateY(-1px);text-decoration:none}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--fg)}
.btn.ghost:hover{border-color:var(--brand);text-decoration:none}
.hero{padding:88px 0 56px;text-align:center}
.hero h1{font-size:clamp(30px,5vw,48px);line-height:1.25;margin:0 0 18px;letter-spacing:-.5px}
.hero h1 em{font-style:normal;background:linear-gradient(135deg,#8f7bff,#4fd1c5);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.sub{color:var(--muted);font-size:18px;max-width:640px;margin:0 auto 30px}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero .meta{color:var(--muted);font-size:13px;margin-top:16px}
.badges{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.badge{border:1px solid var(--line);background:var(--card);color:var(--muted);border-radius:999px;padding:7px 14px;font-size:13px}
section{padding:64px 0}
h2.sec{font-size:clamp(24px,3vw,32px);margin:0 0 10px;text-align:center}
p.secsub{color:var(--muted);text-align:center;margin:0 0 38px}
.grid{display:grid;gap:18px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.card{background:linear-gradient(180deg,var(--card),var(--bg2));border:1px solid var(--line);border-radius:16px;padding:24px}
.card h3{margin:0 0 8px;font-size:17px}
.card p{margin:0;color:var(--muted);font-size:14.5px}
.card .ico{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:rgba(109,108,255,.14);margin-bottom:14px;font-size:18px}
table{width:100%;border-collapse:collapse;font-size:14.5px;background:var(--card);border-radius:14px;overflow:hidden}
th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left}
th{background:rgba(255,255,255,.03);color:var(--muted);font-weight:600;font-size:13px}
tr:last-child td{border-bottom:none}
td.yes{color:var(--ok)} td.no{color:#6b7590}
.price{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:820px;margin:0 auto}
.plan{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;flex-direction:column}
.plan.featured{border-color:var(--brand);box-shadow:0 12px 40px rgba(109,108,255,.18)}
.plan .tag{font-size:12px;color:var(--brand2);border:1px solid rgba(143,123,255,.4);border-radius:999px;padding:3px 10px;align-self:flex-start;margin-bottom:12px}
.plan .amt{font-size:34px;font-weight:800;margin:4px 0 2px}
.plan .amt small{font-size:14px;font-weight:500;color:var(--muted)}
.plan ul{padding-left:18px;color:var(--muted);font-size:14px;margin:14px 0 22px;line-height:2}
.plan .btn{margin-top:auto}
.faq{max-width:820px;margin:0 auto}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:10px}
details summary{cursor:pointer;font-weight:600;list-style:none}
details summary::-webkit-details-marker{display:none}
details p{color:var(--muted);margin:10px 0 0;font-size:14.5px}
footer{border-top:1px solid var(--line);padding:34px 0;color:var(--muted);font-size:13.5px}
footer .cols{display:flex;gap:40px;flex-wrap:wrap;justify-content:space-between}
footer a{color:var(--muted)}
.page-head{padding:56px 0 18px}
.page-head h1{font-size:clamp(26px,4vw,36px);margin:0 0 8px}
.page-head p{color:var(--muted);margin:0}
.box{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px;margin-bottom:18px}
.box h3{margin:0 0 12px;font-size:18px}
.kv{display:grid;grid-template-columns:120px 1fr;gap:10px 16px;font-size:14.5px}
.kv dt{color:var(--muted)}
.kv dd{margin:0}
input,textarea,select{width:100%;background:#0e1220;border:1px solid var(--line);color:var(--fg);border-radius:10px;padding:12px 14px;font:inherit;font-size:14.5px}
input:focus,textarea:focus{outline:none;border-color:var(--brand)}
label{display:block;font-size:14px;margin:14px 0 6px;color:var(--muted)}
.hint{font-size:12.5px;color:var(--muted);margin-top:6px}
code{background:rgba(255,255,255,.06);padding:2px 7px;border-radius:6px;font-size:13px;word-break:break-all}
.timeline{list-style:none;padding:0;margin:0}
.timeline li{position:relative;padding-left:28px;margin-bottom:16px;color:var(--muted);font-size:14.5px}
.timeline li:before{content:"";position:absolute;left:6px;top:9px;width:8px;height:8px;border-radius:50%;background:var(--brand)}
.timeline li b{color:var(--fg)}
@media(max-width:860px){
  .grid.c3,.grid.c2,.price{grid-template-columns:1fr}
  .nav .link{display:none}
  .hero{padding:56px 0 32px}
}