:root{
  --bg:#faf9f7; --card:#ffffff; --ink:#1f2937; --muted:#6b7280;
  --accent:#b45309; --accent-soft:#fef3c7; --line:#e7e2d9;
}
*{margin:0;padding:0;box-sizing:border-box}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:720px;margin:0 auto;padding:0 22px}
a{color:inherit;text-decoration:none}
header.site{padding:64px 0 40px;text-align:center}
.logo{
  display:inline-flex;align-items:center;justify-content:center;
  width:64px;height:64px;border-radius:20px;
  background:linear-gradient(135deg,#f59e0b,#b45309);
  color:#fff;font-size:30px;font-weight:700;margin-bottom:20px;
  box-shadow:0 8px 24px rgba(180,83,9,.25);
}
h1{font-size:30px;letter-spacing:.06em;margin-bottom:10px}
.tagline{color:var(--muted);font-size:15px}
.divider{border:none;border-top:1px solid var(--line);margin:8px 0 40px}
h2{font-size:18px;margin:36px 0 18px;letter-spacing:.08em}
h2::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-right:10px;vertical-align:2px}
.card{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:22px 24px;margin-bottom:16px;
  transition:transform .18s ease, box-shadow .18s ease;
}
a.card:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(31,41,55,.08)}
.card .date{font-size:12px;color:var(--muted);letter-spacing:.05em}
.card h3{font-size:17px;margin:6px 0 8px}
.card p{font-size:14px;color:var(--muted)}
.tag{
  display:inline-block;font-size:12px;color:var(--accent);background:var(--accent-soft);
  border-radius:999px;padding:2px 12px;margin-top:12px;margin-right:8px;
}
.about{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:26px;font-size:15px;color:var(--muted);
}
footer{text-align:center;color:var(--muted);font-size:12px;padding:48px 0 36px;letter-spacing:.05em}
footer .dot{margin:0 8px}
/* 文章页 */
.back{display:inline-block;margin:28px 0 6px;font-size:14px;color:var(--accent)}
.post{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:32px 30px;margin:14px 0 40px}
.post .date{font-size:12px;color:var(--muted);letter-spacing:.05em}
.post h1{font-size:24px;margin:8px 0 20px;letter-spacing:.02em}
.post p{margin-bottom:16px;font-size:15px}
.post p.example-note{background:var(--accent-soft);border-radius:10px;padding:14px 18px;font-size:13px;color:var(--accent)}
@media(max-width:520px){
  header.site{padding:48px 0 32px}
  h1{font-size:24px}
  .post{padding:24px 20px}
}