:root{
  --bg:#07070c; --text:#e9e9ff; --muted:#a6a6c4; --line:rgba(255,255,255,.10);
  --accent:#8b5cf6; --accent2:#22c55e; --danger:#fb7185;
  --radius:20px;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Noto Sans TC","PingFang TC","Microsoft JhengHei", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:var(--sans);background:
radial-gradient(1200px 600px at 10% 10%, rgba(139,92,246,.22), transparent 60%),
radial-gradient(900px 520px at 85% 25%, rgba(34,197,94,.12), transparent 55%),
linear-gradient(180deg, #05050a, #07070c 40%, #05050a);
color:var(--text);}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:24px}
.card{border:1px solid var(--line);background:rgba(255,255,255,.03);border-radius:var(--radius);padding:18px}
.btn{display:inline-flex;gap:10px;align-items:center;justify-content:center;padding:12px 16px;border-radius:14px;
border:1px solid var(--line);background:rgba(255,255,255,.03);font-weight:900;cursor:pointer}
.btn.primary{border-color:rgba(139,92,246,.55);background:linear-gradient(135deg, rgba(139,92,246,.95), rgba(34,197,94,.65))}
.muted{color:var(--muted)}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.nav{position:sticky;top:0;background:rgba(7,7,12,.55);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:10}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;gap:10px;align-items:center;font-weight:950}
.logo{width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg, rgba(139,92,246,1), rgba(34,197,94,.75))}
.grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
@media(max-width:960px){.grid{grid-template-columns:1fr}}
h1{margin:12px 0 10px;font-size:clamp(32px,4vw,52px);letter-spacing:-.6px;line-height:1.05}
small{color:var(--muted)}
.hr{height:1px;background:var(--line);margin:14px 0}
.code{font-family:var(--mono);font-size:13px;color:rgba(233,233,255,.9)}
.badge{display:inline-flex;padding:6px 10px;border-radius:999px;border:1px solid rgba(139,92,246,.35);background:rgba(139,92,246,.10);font-weight:900;font-size:12px}
.alert{border:1px solid rgba(251,113,133,.35);background:rgba(251,113,133,.08);border-radius:16px;padding:12px}
.ok{border:1px solid rgba(34,197,94,.35);background:rgba(34,197,94,.08);border-radius:16px;padding:12px}
.progress{height:12px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.progress>div{height:100%;background:linear-gradient(90deg, rgba(139,92,246,.95), rgba(34,197,94,.65));width:0%}
.step{padding:10px 12px;border-radius:16px;border:1px solid var(--line);background:rgba(0,0,0,.18)}