:root {
  --bg: #f7f4ee;
  --paper: #fffdf8;
  --ink: #23201b;
  --muted: #6f685d;
  --line: #e4ddd0;
  --accent: #9a4b1f;
  --shadow: 0 1px 2px rgba(60, 45, 20, .06), 0 6px 20px rgba(60, 45, 20, .06);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17161a;
    --paper: #201f24;
    --ink: #ece8e1;
    --muted: #a39d93;
    --line: #34323a;
    --accent: #e3a172;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 6px 20px rgba(0, 0, 0, .25);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
        "Noto Sans CJK SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}
a { color: inherit; }
header.site, main, footer.site { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
header.site { padding-top: 56px; padding-bottom: 24px; }
header.site h1 {
  margin: 0 0 8px;
  font: 600 clamp(26px, 5vw, 38px)/1.25 "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;
  letter-spacing: .01em;
}
.lede { margin: 0; color: var(--muted); max-width: 40em; }
.count { margin: 12px 0 0; font-size: 13px; color: var(--muted); }
.grid {
  list-style: none; margin: 8px 0 0; padding: 0;
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
}
.card a {
  display: flex; flex-direction: column; height: 100%;
  padding: 20px 22px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  text-decoration: none;
  transition: transform .15s ease, border-color .15s ease;
}
.card a:hover, .card a:focus-visible { transform: translateY(-2px); border-color: var(--accent); outline: none; }
.card time { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; letter-spacing: .04em; }
.card h2 {
  margin: 6px 0 4px;
  font: 600 19px/1.4 "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;
}
.card .sub { margin: 0 0 8px; color: var(--accent); font-size: 14px; }
.card .excerpt { margin: 0 0 14px; color: var(--muted); font-size: 14px; }
.card .open { margin-top: auto; font-size: 13px; color: var(--accent); }
.empty {
  margin: 24px 0; padding: 40px 24px; text-align: center;
  background: var(--paper); border: 1px dashed var(--line); border-radius: 12px; color: var(--muted);
}
.empty-title { font-size: 18px; color: var(--ink); margin: 0 0 6px; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }
footer.site { padding-top: 40px; padding-bottom: 48px; font-size: 13px; color: var(--muted); }
footer.site a { color: var(--accent); }
@media (max-width: 520px) {
  header.site { padding-top: 36px; }
  .card a { padding: 18px; }
}