:root {
  --bg: #faf8f4;
  --ink: #2c2a26;
  --muted: #8a857c;
  --accent: #6b8e5a;
  --line: #e6e0d6;
  --card: #fffefb;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.75 -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }

.site-head {
  padding: 56px 0 32px;
  border-bottom: 1px solid var(--line);
}
.site-head h1 {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 1px;
}
.tagline { margin: 0; color: var(--muted); font-size: 14px; }

.tabs {
  display: flex;
  gap: 24px;
  padding: 20px 20px 0;
}
.tabs a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  padding-bottom: 6px;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
}
.tabs a.active, .tabs a:hover { color: var(--ink); border-color: var(--accent); }

main { padding: 28px 0 64px; }
.hidden { display: none; }

.entry {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px 28px;
  margin-bottom: 24px;
}
.entry header { margin-bottom: 12px; }
.entry time { color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; }
.entry h2 { margin: 6px 0 0; font-size: 20px; font-weight: 600; }
.entry p { margin: 12px 0; }

.sec-title { font-size: 18px; font-weight: 600; margin: 0 0 16px; }
.archive-list { list-style: none; padding: 0; margin: 0; }
.archive-list li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--ink);
}
.archive-list time { color: var(--muted); font-variant-numeric: tabular-nums; margin-right: 8px; }

.site-foot {
  border-top: 1px solid var(--line);
  padding: 24px 0 40px;
  font-size: 13px;
  color: var(--muted);
}
.site-foot .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.site-foot a { color: var(--muted); text-decoration: none; }
.site-foot a:hover { color: var(--accent); }
.muted { color: var(--muted); }

@media (max-width: 600px) {
  .site-head { padding: 36px 0 24px; }
  .entry { padding: 18px 20px; }
}