:root {
  --bg: #f6f4f1;
  --card: #ffffff;
  --ink: #2e2a27;
  --muted: #8a827c;
  --line: #e6e1dc;
  --accent: #8c5a4a;
  --ok: #2f7d4f;
  --error: #b03a3a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Microsoft YaHei", "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
}
.topbar {
  background: #fff; border-bottom: 1px solid var(--line);
  padding: 12px 24px; display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 16px; }
.brand .tag {
  font-weight: 400; font-size: 11px; color: var(--muted);
  border: 1px solid var(--line); padding: 1px 6px; border-radius: 10px; margin-left: 6px;
}
nav { display: flex; gap: 14px; flex-wrap: wrap; }
nav a { color: var(--ink); text-decoration: none; padding: 4px 2px; }
nav a:hover { color: var(--accent); }
nav a.right { margin-left: auto; color: var(--muted); }
main { padding: 20px 24px 60px; max-width: 1180px; margin: 0 auto; }
h2 { font-size: 20px; margin: 8px 0 16px; }
h3 { font-size: 15px; margin: 0 0 12px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 16px; margin-bottom: 18px;
}
.card.narrow { max-width: 380px; margin: 60px auto; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }
form label { display: block; margin-bottom: 10px; font-size: 13px; color: var(--muted); }
form.inline { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
form.inline label { margin-bottom: 0; min-width: 120px; }
form.inline button { margin-bottom: 0; }
form.wrap label { flex: 1 1 140px; }
input, select {
  width: 100%; margin-top: 4px; padding: 7px 8px; font-size: 14px;
  border: 1px solid var(--line); border-radius: 5px; background: #fff; color: var(--ink);
}
button {
  background: var(--accent); color: #fff; border: 0; border-radius: 5px;
  padding: 9px 18px; font-size: 14px; cursor: pointer; margin-bottom: 10px;
}
button:hover { filter: brightness(1.08); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: center; padding: 8px 6px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; background: #fbfaf9; }
td.num { text-align: center; font-variant-numeric: tabular-nums; }
td.muted, .muted { color: var(--muted); }
td.empty { text-align: center; color: var(--muted); padding: 20px; }
.hint { color: var(--muted); font-size: 12px; line-height: 1.6; margin: 8px 0 0; }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; font-size: 13px; }
.flash.ok { background: #eaf5ee; color: var(--ok); border: 1px solid #cfe6d7; }
.flash.error { background: #fbeceb; color: var(--error); border: 1px solid #f0d1ce; }
.preview {
  background: #fbf7f3; border: 1px dashed #e2d3c7; border-radius: 6px;
  padding: 10px 12px; margin: 4px 0 14px; font-size: 13px;
}
.foot {
  max-width: 1180px; margin: 0 auto; padding: 16px 24px 30px;
  color: var(--muted); font-size: 12px; line-height: 1.7;
}
.foot code { background: #efeae5; padding: 1px 4px; border-radius: 3px; }
form.tiny { margin: 0; }
form.tiny button { padding: 3px 8px; font-size: 12px; margin: 0 4px 0 0; }
button.btn-off { background: #9a8f88; }
button.btn-on { background: #4f8a63; }
button.btn-ghost { background: transparent; color: var(--accent); border: 1px solid var(--line); }
.item-row {
  display: grid; grid-template-columns: 2fr 90px auto; gap: 8px;
  align-items: end; padding: 8px; margin-bottom: 8px;
  border: 1px solid var(--line); border-radius: 6px; background: #fbfaf9;
}
.item-row label { margin: 0; }
.item-row button { margin: 0; }
details summary { cursor: pointer; color: var(--accent); font-size: 12px; }
details form { margin-top: 10px; min-width: 190px; }