:root {
  color-scheme: light dark;
  --bg: #0b0f14;
  --fg: #e8eef5;
  --muted: #9aa7b5;
  --card: #141b24;
  --link: #7db7ff;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f8fb;
    --fg: #15202b;
    --muted: #5b6b7c;
    --card: #ffffff;
    --link: #0b5fff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.65;
}
.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 18px 48px;
}
h1 { font-size: 1.6rem; line-height: 1.3; margin: 0 0 12px; }
.meta, .crumb, .back { color: var(--muted); font-size: 0.92rem; }
.summary {
  background: var(--card);
  border-radius: 12px;
  padding: 14px 16px;
  margin: 16px 0 20px;
}
.list { padding-left: 1.2rem; }
.list li { margin: 0.55rem 0; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
.article .body {
  background: var(--card);
  border-radius: 12px;
  padding: 18px 16px;
  margin-top: 16px;
  white-space: normal;
}