:root {
  --bg: #fafafa;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --border: #e5e5e5;
  --accent: #0066cc;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161616;
    --fg: #e8e8e8;
    --muted: #9a9a9a;
    --border: #2a2a2a;
    --accent: #4d9fff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}
.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}
h1 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 1.25rem;
}
.back {
  display: inline-block;
  margin-bottom: 1.25rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
}
.back:hover { color: var(--accent); }
.search {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}
.search:focus { outline: none; border-color: var(--accent); }
.list { display: flex; flex-direction: column; gap: 0.15rem; }
.item {
  display: block;
  padding: 0.6rem 0.75rem;
  color: var(--fg);
  text-decoration: none;
  border-radius: 8px;
  border: 1px solid transparent;
}
.item:hover { background: var(--border); }
.item .desc {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.05rem;
}
.empty {
  color: var(--muted);
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
  display: none;
}
.home-links { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1.5rem; }
.home-links a {
  display: block;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--fg);
  text-decoration: none;
  font-size: 1.05rem;
  font-weight: 500;
}
.home-links a:hover { border-color: var(--accent); color: var(--accent); }
.home-links a::after { content: " →"; font-weight: 400; color: var(--muted); }