:root{
  --ink:#1a1a1a; --sub:#5c5c5c; --line:#e6e3de; --bg:#fbfaf8;
  --brand:#8c2f39; --brand-soft:#f6eeee; --accent:#b8860b;
}
*{box-sizing:border-box}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px; line-height:1.85; -webkit-font-smoothing:antialiased;
}
.wrap{max-width:820px; margin:0 auto; padding:0 22px}
header.site{border-bottom:1px solid var(--line); background:#fff; position:sticky; top:0; z-index:10}
header.site .wrap{display:flex; align-items:center; justify-content:space-between; height:62px; gap:16px}
.brand{font-weight:700; font-size:17px; letter-spacing:.3px; color:var(--ink); text-decoration:none}
.brand small{display:block; font-weight:400; font-size:11px; color:var(--sub); letter-spacing:.6px}
nav a{color:var(--sub); text-decoration:none; font-size:14px; margin-left:18px}
nav a:hover{color:var(--brand)}
main{padding:38px 0 64px}
h1{font-size:29px; line-height:1.35; margin:0 0 18px; letter-spacing:-.3px}
h2{font-size:21px; margin:38px 0 12px; padding-top:6px; border-top:1px solid var(--line)}
h2:first-of-type{border-top:none; padding-top:0}
h3{font-size:17px; margin:26px 0 8px}
p{margin:0 0 15px}
strong{font-weight:600}
blockquote{
  margin:0 0 22px; padding:16px 20px; background:var(--brand-soft);
  border-left:3px solid var(--brand); border-radius:0 4px 4px 0; color:#3d2b2e;
}
blockquote p:last-child{margin-bottom:0}
ul,ol{margin:0 0 16px; padding-left:22px}
li{margin:5px 0}
a{color:var(--brand); text-decoration:none; border-bottom:1px solid rgba(140,47,57,.25)}
a:hover{border-bottom-color:var(--brand)}
table{width:100%; border-collapse:collapse; margin:0 0 20px; font-size:14.5px; background:#fff}
th,td{border:1px solid var(--line); padding:9px 12px; text-align:left; vertical-align:top}
th{background:#f3f1ed; font-weight:600; white-space:nowrap}
hr{border:none; border-top:1px solid var(--line); margin:32px 0}
code{background:#f1efeb; padding:1px 5px; border-radius:3px; font-size:14px}
pre{background:#f1efeb; padding:14px; border-radius:5px; overflow-x:auto; font-size:13.5px; line-height:1.6}
pre code{background:none; padding:0}
.hero{background:#fff; border:1px solid var(--line); border-radius:8px; padding:30px 28px; margin-bottom:32px}
.hero h1{margin-bottom:12px}
.hero .lead{font-size:16px; color:#333}
.meta{font-size:13px; color:var(--sub); margin-bottom:0}
.grid{display:grid; grid-template-columns:1fr 1fr; gap:14px; margin:0 0 26px}
.card{background:#fff; border:1px solid var(--line); border-radius:6px; padding:16px 18px; border-bottom:1px solid var(--line)!important}
.card h3{margin:0 0 6px; font-size:15.5px}
.card p{font-size:13.5px; color:var(--sub); margin:0}
.cta{background:#fff; border:1px solid var(--line); border-radius:8px; padding:22px 24px; margin:30px 0 0}
footer.site{border-top:1px solid var(--line); background:#fff; padding:26px 0; font-size:13px; color:var(--sub)}
footer.site strong{color:var(--ink)}
footer.site p{margin:0 0 6px}
@media(max-width:640px){
  .grid{grid-template-columns:1fr}
  h1{font-size:24px}
  body{font-size:16px}
}