:root {
  --bg: #f7f3ee;
  --ink: #2a2420;
  --muted: #7a6e64;
  --card: #fffdf9;
  --accent: #c47a5a;
  --line: #e8ddd0;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
header.site, main, footer { width: min(720px, 92vw); margin: 0 auto; }
header.site { padding: 3rem 0 1.5rem; }
.logo { font-size: 1.6rem; font-weight: 700; color: var(--ink); text-decoration: none; }
.tag { color: var(--muted); margin: 0.4rem 0 0; }
main { flex: 1; padding-bottom: 3rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.4rem 1.5rem;
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(42,36,32,.06); }
.card a { color: inherit; text-decoration: none; display: block; }
.card h2 { margin: 0 0 .4rem; font-size: 1.25rem; }
.card time { color: var(--muted); font-size: .9rem; }
.card p { margin: .6rem 0 0; color: var(--muted); }
footer { color: var(--muted); font-size: .85rem; padding: 1.5rem 0 2.5rem; border-top: 1px solid var(--line); }
.post header.site { padding-bottom: 0.5rem; }
.post h1 { font-size: 1.8rem; margin: 1rem 0 .4rem; line-height: 1.3; }
.post .meta { color: var(--muted); margin-bottom: 2rem; }
.post .body h2 { font-size: 1.2rem; margin: 2rem 0 .8rem; color: var(--accent); }
.post .body p { margin: 0 0 1rem; }
.post .body ul { padding-left: 1.2rem; margin: 0 0 1rem; }
.post .body li { margin: .35rem 0; }
.post .body code {
  background: #efe6dc; padding: .1rem .35rem; border-radius: 4px; font-size: .92em;
}
.back { color: var(--accent); text-decoration: none; font-size: .95rem; }
.note {
  background: #fff4ea; border-left: 3px solid var(--accent);
  padding: .8rem 1rem; border-radius: 0 10px 10px 0; margin: 1.2rem 0;
}