:root{
  --ink:#1c1d21;
  --muted:#6b7280;
  --line:#e5e7eb;
  --bg:#fbfbf9;
  --accent:#2a5bd7;
}
*{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
.wrap{max-width:760px;margin:0 auto;padding:0 24px}
.site-header{border-bottom:1px solid var(--line);background:#fff}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:700;font-size:17px;color:var(--ink);text-decoration:none;letter-spacing:.2px}
nav a{margin-left:20px;color:var(--muted);text-decoration:none;font-size:14px}
nav a:hover{color:var(--accent)}
.hero{padding:56px 0 32px;border-bottom:1px solid var(--line)}
.hero h1{font-size:30px;line-height:1.35;margin:0 0 12px;letter-spacing:.2px}
.lede{color:var(--muted);margin:0}
section{padding:36px 0;border-bottom:1px solid var(--line)}
h2{font-size:14px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin:0 0 18px}
.posts{list-style:none;padding:0;margin:0}
.posts li{margin-bottom:22px}
.date{display:block;font-size:12px;color:#9ca3af;font-variant-numeric:tabular-nums}
.posts a{color:var(--ink);text-decoration:none;font-weight:600}
.posts a:hover{color:var(--accent)}
.posts p{margin:4px 0 0;color:var(--muted);font-size:14px}
a{color:var(--accent)}
.site-footer{border-top:0;padding:28px 0 48px}
.site-footer .wrap{display:flex;justify-content:space-between;font-size:13px;color:var(--muted)}
.muted{color:#9ca3af}
@media (max-width:520px){
  .hero h1{font-size:24px}
  .site-header .wrap{height:56px}
  nav a{margin-left:14px}
}