:root {
  color-scheme: light dark;
  --fg: #1f2328;
  --muted: #656d76;
  --bg: #ffffff;
  --link: #0a58ca;
  --code-bg: #f6f8fa;
  --border: #d0d7de;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e6edf3;
    --muted: #8d96a0;
    --bg: #0d1117;
    --link: #6cb6ff;
    --code-bg: #161b22;
    --border: #30363d;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 0 1.25rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-text-size-adjust: 100%;
}
main, header.site { max-width: 70ch; margin: 0 auto; }
header.site { padding: 1.25rem 0 0; }
header.site a { color: var(--muted); text-decoration: none; font-weight: 600; }
a { color: var(--link); text-underline-offset: 0.15em; }
h1, h2 { line-height: 1.3; margin: 2em 0 0.6em; }
h1 { font-size: 2rem; margin-top: 1.2em; }
h2 { font-size: 1.45rem; }
.meta { color: var(--muted); margin-top: -0.3em; }
li { margin: 0.3em 0; }
code { font: 0.88em/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--code-bg); padding: 0.1em 0.35em; border-radius: 4px; }
pre { background: var(--code-bg); border: 1px solid var(--border); border-radius: 6px; padding: 0.8em 1em; overflow-x: auto; margin: 0.6em 0; }
pre code { background: none; padding: 0; font-size: 0.85em; }
.home h1 { margin-top: 2.5em; margin-bottom: 0.2em; }
.subtitle { color: var(--muted); margin-top: 0; font-style: italic; }
.home h2 { margin-top: 2.2em; }
.notes { list-style: none; padding: 0; }
.notes li { display: flex; justify-content: space-between; gap: 1em; padding: 0.35em 0; margin: 0; border-bottom: 1px solid var(--border); }
.notes time { color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.links { margin-top: 2.5em; color: var(--muted); }
.door { position: fixed; top: 0; right: 0; width: 48px; height: 48px; }