:root {
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --brand: #2563eb;
  --bg: #f8fafc;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
.site-header {
  display: flex; flex-wrap: wrap; gap: 12px;
  align-items: center; justify-content: space-between;
  padding: 14px 20px; background: #fff; border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; color: var(--ink); text-decoration: none; }
.site-nav { display: flex; gap: 14px; flex-wrap: wrap; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.site-nav a.active, .site-nav a:hover { color: var(--brand); }
.wrap { max-width: 880px; margin: 0 auto; padding: 24px 20px 60px; }
h1 { font-size: 24px; margin: 8px 0; }
h2 { font-size: 16px; margin: 0 0 12px; }
.lede { color: var(--muted); margin: 0 0 20px; }
.panel {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 16px; margin-bottom: 16px;
}
.row { display: flex; gap: 12px; flex-wrap: wrap; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); flex: 1 1 180px; }
input, select {
  font: inherit; padding: 8px 10px; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; color: var(--ink);
}
button {
  font: inherit; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--brand);
  background: var(--brand); color: #fff; cursor: pointer;
}
button.ghost { background: #fff; color: var(--brand); }
button.danger { background: #fff; color: #dc2626; border-color: #fecaca; }
.actions { display: flex; gap: 10px; margin-top: 12px; }
.err { color: #dc2626; font-size: 13px; margin: 8px 0 0; }
.kids { list-style: none; padding: 0; margin: 0; }
.kids li {
  display: flex; gap: 12px; align-items: center; justify-content: space-between;
  padding: 10px 0; border-bottom: 1px dashed var(--line);
}
.kids li:last-child { border-bottom: none; }
.who { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.tag { font-size: 12px; color: var(--muted); background: var(--bg); border: 1px solid var(--line); border-radius: 999px; padding: 1px 9px; }
.tag.current { color: #065f46; border-color: #a7f3d0; background: #ecfdf5; }
.ops { display: flex; gap: 8px; }
.ops button { padding: 5px 10px; font-size: 13px; }
.empty { color: var(--muted); font-size: 14px; }
.foot { color: var(--muted); font-size: 12px; }
/* 记录页 */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
.mono { font-variant-numeric: tabular-nums; color: var(--muted); }
.count { font-weight: 700; color: #b45309; }