:root {
  --paper: #f4f1ea;
  --card: #fffcf7;
  --ink: #1a1a1a;
  --muted: #6b6560;
  --line: #d9d3c8;
  --block: #9b1c1c;
  --block-bg: #fde8e8;
  --review: #8a6a00;
  --review-bg: #fff6d8;
  --clear: #3d4a3f;
  --navy: #1c2430;
  --focus: #1c2430;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei",
    ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.55;
}
.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 32px 80px;
}
.block {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 28px 32px;
  margin-bottom: 16px;
}
.header { padding-bottom: 22px; }
.header-top {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
}
h1 {
  font-size: 28px;
  font-weight: 650;
  letter-spacing: 0.04em;
  margin: 0 0 6px;
}
.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.what-is {
  margin-top: 14px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0;
}
.what-is summary {
  cursor: pointer;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--navy);
  user-select: none;
  list-style: revert;
}
.what-is[open] summary { border-bottom: 1px solid var(--line); }
.what-is-body { padding: 12px 14px; }
.what-is-body p {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink);
}
.what-is-body p:last-child { margin-bottom: 0; }
.legend {
  display: inline-block;
  padding: 1px 8px;
  margin: 0 4px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid transparent;
}
.legend.block { background: var(--block-bg); color: var(--block); border-color: var(--block); }
.legend.review { background: var(--review-bg); color: var(--review); border-color: var(--review); }
.legend.clear { background: var(--clear-bg, #eef7ee); color: var(--clear); border-color: var(--clear); }
.list-dates {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 14px;
  max-width: 640px;
  font-size: 11px;
  color: var(--muted);
  text-align: right;
}
.list-dates span { white-space: nowrap; }
.list-dates .stale-date { color: var(--block); }
.stale-banner {
  margin-top: 16px;
  padding: 10px 12px;
  background: var(--review-bg);
  color: #5c4700;
  font-size: 13px;
  border: 1px solid #ead9a0;
}
.field-label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  padding: 12px 14px;
  font: inherit;
  resize: vertical;
  min-height: 160px;
  color: var(--ink);
}
textarea:focus, select:focus { outline: 2px solid var(--navy); outline-offset: 1px; }
.row-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.file-btn {
  display: inline-block;
  border: 1px solid var(--line);
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  background: #fff;
}
.file-btn input { display: none; }
.hint { color: var(--muted); font-size: 12px; }
.controls {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  margin-top: 22px;
  flex-wrap: wrap;
}
.field { display: flex; flex-direction: column; gap: 6px; min-width: 180px; }
.field label { font-size: 12px; color: var(--muted); }
select {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--line);
  background: #fff;
  min-width: 180px;
}
button {
  font: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  padding: 10px 18px;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }
.primary {
  background: var(--navy);
  color: #fff;
  padding: 10px 22px;
  letter-spacing: 0.06em;
}
.primary:hover:not(:disabled) { background: #111820; }
.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.secondary {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}
.example-note { margin: 12px 0 0; font-size: 12px; color: var(--muted); }
.proto {
  margin-top: 18px;
  display: flex;
  gap: 20px;
  font-size: 12px;
  color: var(--muted);
}
.proto label { cursor: pointer; }
.error {
  margin-top: 12px;
  color: var(--block);
  font-size: 13px;
}
.empty { color: var(--muted); padding: 12px 0; }
.progress {
  padding: 18px 0;
  color: var(--navy);
  font-weight: 500;
}
.paywall {
  border: 1px solid var(--line);
  padding: 20px;
  background: #fff;
}
.paywall h2 { margin: 0 0 8px; font-size: 18px; }
.paywall .muted { color: var(--muted); font-size: 13px; }
.counts {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.counts .c { font-size: 18px; font-weight: 600; letter-spacing: 0.02em; }
.counts .c.block { color: var(--block); }
.counts .c.review { color: var(--review); }
.counts .c.clear { color: var(--clear); }
.sid { margin-left: auto; font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.note {
  background: #f3eee3;
  padding: 8px 10px;
  font-size: 13px;
  margin-bottom: 12px;
  color: #5a4a32;
}
.filters {
  display: flex;
  gap: 16px;
  align-items: center;
  margin: 8px 0 12px;
  flex-wrap: wrap;
}
.filters .f { font-size: 13px; cursor: pointer; }
.filters .f.block { color: var(--block); }
.filters .f.review { color: var(--review); }
.grid {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.grid th {
  text-align: left;
  font-weight: 500;
  color: var(--muted);
  font-size: 12px;
  border-bottom: 1px solid var(--line);
  padding: 8px 10px;
}
.grid td { padding: 10px; border-bottom: 1px solid #eee9e0; vertical-align: top; }
.grid tr.row { cursor: pointer; }
.grid tr.row.block { background: var(--block-bg); }
.grid tr.row.review { background: var(--review-bg); }
.grid tr.row.clear { background: #fff; }
.grid tr.row:hover { filter: brightness(0.985); }
.badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.badge.block { color: var(--block); }
.badge.review { color: var(--review); }
.badge.clear { color: var(--clear); }
.expand {
  background: #fbfaf6;
  font-size: 13px;
  color: #333;
}
.expand td { padding: 0 10px 14px 10px; }
.expand-inner { padding: 4px 4px 8px; }
.expand a { color: #1a4b8c; }
.why { margin: 6px 0; }
.warn { color: #7a4b00; }
.tag { font-size: 11px; border: 1px solid var(--line); padding: 1px 6px; margin-left: 6px; color: var(--muted); }
.footer .downloads { display: flex; gap: 10px; margin-bottom: 16px; }
.legal { margin: 4px 0; font-size: 12px; color: var(--muted); }
.legal.strong { color: var(--ink); }
.legal.muted { color: #8a847c; }
@media (max-width: 720px) {
  .page { padding: 16px; }
  .block { padding: 16px; }
  .header-top { flex-direction: column; }
  .list-dates { text-align: left; justify-content: flex-start; }
  .kb-chip { display: none; }
}

.store-strip {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  max-width: 680px;
}
.store-line {
  font-size: 12px;
  color: var(--muted);
  text-align: right;
}
.list-dates .count { color: #8a847c; }
.fail-banner {
  background: var(--block-bg);
  color: var(--block);
  border-color: #e8c4c4;
}
.uk-note {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--muted);
}

.list-dates .cap-review { color: var(--review); }
.expand .meta { color: var(--muted); font-size: 12px; }

/* ---------- 知识库 ---------- */
.tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0;
}
.tabs .tab {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 16px;
  color: var(--muted);
  font-size: 15px;
  letter-spacing: 0.02em;
}
.tabs .tab:hover { color: var(--ink); }
.tabs .tab.active {
  color: var(--ink);
  font-weight: 600;
  border-bottom-color: var(--navy);
}
.kb-chip {
  margin-left: auto;
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 2px 8px;
  background: #fff;
}
.kb-title { margin: 0 0 4px; font-size: 22px; font-weight: 650; letter-spacing: 0.04em; }
.kb-sub { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
.kb-searchbar { display: flex; gap: 10px; margin-bottom: 18px; }
.kb-searchbar input {
  flex: 1;
  border: 1px solid var(--line);
  background: #fff;
  padding: 10px 14px;
  font: inherit;
  color: var(--ink);
}
.kb-searchbar input:focus { outline: 2px solid var(--navy); outline-offset: 1px; }
.kb-cat { margin-bottom: 18px; }
.kb-cat h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.kb-cat-desc { margin: 0 0 10px; font-size: 12px; color: var(--muted); }
.kb-topic-list { display: flex; flex-direction: column; gap: 6px; }
.kb-topic {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 10px;
  text-align: left;
  background: #fff;
  border: 1px solid var(--line);
  padding: 10px 14px;
  font: inherit;
  cursor: pointer;
}
.kb-topic:hover { border-color: var(--navy); }
.kb-topic-title { font-size: 14px; font-weight: 500; }
.kb-topic-count { font-size: 11px; color: var(--muted); white-space: nowrap; }
.kb-topic-sum { font-size: 12px; color: var(--muted); }
.kb-result-count { margin: 0 0 12px; font-size: 13px; color: var(--muted); }
.kb-result-list { display: flex; flex-direction: column; gap: 8px; }
.kb-hit {
  display: flex;
  flex-direction: column;
  gap: 3px;
  text-align: left;
  background: #fff;
  border: 1px solid var(--line);
  padding: 12px 14px;
  font: inherit;
  cursor: pointer;
}
.kb-hit:hover { border-color: var(--navy); }
.kb-hit-title { font-size: 14px; font-weight: 600; }
.kb-hit-topic { font-size: 12px; color: var(--review); }
.kb-hit-snippet { font-size: 12px; color: var(--muted); }
.kb-back { margin-bottom: 14px; }
.kb-crumb { margin: 0 0 6px; font-size: 12px; color: var(--muted); }
.kb-entry-title { margin: 0 0 4px; font-size: 20px; font-weight: 650; }
.kb-entry-meta { margin: 0 0 16px; font-size: 12px; color: var(--muted); }
.kb-body { font-size: 14px; line-height: 1.7; }
.kb-body h4 {
  margin: 18px 0 8px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: 0.03em;
}
.kb-body h5 { margin: 14px 0 6px; font-size: 14px; font-weight: 600; }
.kb-body p { margin: 6px 0; }
.kb-body ul { margin: 6px 0; padding-left: 22px; }
.kb-body li { margin: 4px 0; }
.kb-sources { margin-top: 20px; border-top: 1px dashed var(--line); padding-top: 12px; }
.kb-sources-label { margin: 0 0 6px; font-size: 12px; color: var(--muted); }
.kb-sources a {
  display: block;
  font-size: 12px;
  color: #1a4b8c;
  word-break: break-all;
  margin: 3px 0;
}
.kb-reco a { color: #1a4b8c; margin-right: 4px; }
.kb-reco .kb-reco-sep { margin: 0 6px 0 10px; color: var(--muted); }
.kb-reco strong { margin-right: 6px; }
.kb-hit-title mark, .kb-hit-snippet mark {
  background: #fff3bf;
  color: inherit;
  padding: 0 1px;
}
.kb-sources span { display: block; font-size: 12px; color: var(--muted); word-break: break-all; margin: 3px 0; }

.kb-topic-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 8px 0 4px;
  padding: 8px 0 8px 12px;
  border-left: 2px solid var(--navy);
}
.kb-topic-group-title {
  margin: 0 0 2px;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.04em;
}
.kb-toc {
  background: #f4f6f8;
  border: 1px solid var(--line);
  padding: 10px 14px;
  margin: 0 0 16px;
  font-size: 13px;
}
.kb-toc p { margin: 0 0 6px; font-weight: 600; }
.kb-toc ol { margin: 0; padding-left: 1.3em; }
.kb-toc a { color: inherit; }
.kb-entry-body h4 { margin: 1.1em 0 0.4em; font-size: 15px; }