:root{
  --bg:#0b1220;
  --fg:#e8eef7;
  --muted:#93a4bd;
  --accent:#f6821f;      /* Cloudflare 橙 */
  --card:#121c2e;
  --line:#22304a;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--fg);
  font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
.hero{
  padding:96px 24px 72px;
  text-align:center;
  background:
    radial-gradient(1000px 400px at 50% -10%, rgba(246,130,31,.18), transparent 70%),
    linear-gradient(180deg,#0e1728,#0b1220);
  border-bottom:1px solid var(--line);
}
.hero h1{
  margin:0 0 16px;
  font-size:clamp(32px,6vw,56px);
  letter-spacing:.02em;
}
.sub{
  max-width:620px;
  margin:0 auto 28px;
  color:var(--muted);
  font-size:clamp(15px,2.2vw,18px);
}
.badge{
  display:inline-block;
  margin:0;
  padding:8px 18px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:14px;
  color:var(--muted);
  background:rgba(255,255,255,.02);
}
.badge.hit{ border-color:rgba(246,130,31,.5); color:var(--accent) }

main{
  max-width:860px;
  margin:0 auto;
  padding:56px 24px 40px;
}
section{margin-bottom:52px}
h2{
  font-size:22px;
  margin:0 0 18px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
ol,ul{margin:0;padding-left:22px}
li{margin-bottom:10px;color:#cdd8e8}
code{
  padding:2px 7px;
  border-radius:5px;
  background:var(--card);
  border:1px solid var(--line);
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
  font-size:.9em;
  color:var(--accent);
}
footer{
  padding:40px 24px 64px;
  text-align:center;
  color:var(--muted);
  font-size:14px;
  border-top:1px solid var(--line);
}
@media (prefers-color-scheme:light){
  :root{--bg:#f7f9fc;--fg:#0f172a;--muted:#5b6b83;--card:#eef2f8;--line:#dde5f0}
  .hero{background:radial-gradient(1000px 400px at 50% -10%,rgba(246,130,31,.14),transparent 70%),linear-gradient(180deg,#fff,#f7f9fc)}
  li{color:#33415a}
}