:root {
  --bg: #faf6ee;
  --text: #2b2620;
  --muted: #7a6f60;
  --accent: #8a4b7a;
  --rule: #e4dccd;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #1d1a17; --text: #ece5d8; --muted: #a89c8a; --accent: #d79bc6; --rule: #3a342d; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 16px; }
header img { border-radius: 14px; flex: none; }
h1 { font: 600 1.5rem/1.2 Georgia, "Times New Roman", serif; margin: 0; }
.sub { margin: 4px 0 0; color: var(--muted); }
nav { margin: 24px 0 8px; padding-bottom: 16px; border-bottom: 1px solid var(--rule); }
article { padding-top: 16px; }
article + article { margin-top: 48px; border-top: 1px solid var(--rule); }
h2 { font: 600 1.35rem/1.3 Georgia, serif; margin: 16px 0 4px; }
h3 { font-size: 1.05rem; margin: 28px 0 6px; }
.meta { color: var(--muted); margin-top: 0; }
a { color: var(--accent); }
ul { padding-left: 1.3em; }
li { margin: 4px 0; }
.links a { display: inline-block; margin-right: 16px; }