:root {
  --navy: #22385C;
  --green: #2E5238;
  --gold: #C9A96E;
  --ink: #1F2933;
  --muted: #6B7280;
  --line: #E5E7EB;
  --bg: #FFFFFF;
  --surface: #F7F8FA;
  --radius: 10px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 15px;
  line-height: 1.65;
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 16px;
}

.site-header {
  background: var(--navy);
  color: #fff;
  padding: 22px 0 20px;
  border-bottom: 3px solid var(--gold);
}

.brand { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }

.brand-zh { font-size: 20px; font-weight: 600; letter-spacing: .5px; }

.brand-en {
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 1px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.tagline { margin: 6px 0 0; font-size: 13px; color: rgba(255, 255, 255, .78); }

.search-panel {
  margin: 20px 0 0;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.search-row { display: flex; gap: 8px; }

.search-row input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 11px 12px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.search-row input:focus { outline: 2px solid var(--navy); outline-offset: -1px; }

.search-row button {
  flex: 0 0 auto;
  padding: 11px 20px;
  font-size: 15px;
  font-family: inherit;
  color: #fff;
  background: var(--green);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}

.search-row button:hover { background: #24422B; }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
  margin-top: 12px;
}

.fld { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }

.fld select,
.fld input {
  padding: 7px 8px;
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.year-inputs { display: flex; align-items: center; gap: 5px; }

.year-inputs input { width: 72px; }

.year-inputs em { font-style: normal; color: var(--muted); }

.link-btn {
  padding: 8px 4px;
  font-size: 13px;
  font-family: inherit;
  color: var(--navy);
  background: none;
  border: 0;
  cursor: pointer;
  text-decoration: underline;
}

.stats { margin: 16px 0 10px; font-size: 13px; color: var(--muted); }

.results { display: flex; flex-direction: column; gap: 12px; }

.card {
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--green);
  border-radius: var(--radius);
}

.card-id {
  float: right;
  font-size: 11px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.card-title-zh { margin: 0; font-size: 16px; font-weight: 600; line-height: 1.5; color: var(--navy); }

.card-title-orig { margin: 4px 0 0; font-size: 13px; color: var(--muted); line-height: 1.5; word-break: break-word; }

.card-meta { margin: 8px 0 0; font-size: 12.5px; color: var(--muted); }

.badge {
  display: inline-block;
  padding: 1px 8px;
  margin-right: 6px;
  font-size: 11.5px;
  color: #fff;
  background: var(--navy);
  border-radius: 999px;
  vertical-align: 1px;
}

.badge-lang { background: var(--gold); color: #3A2E12; }

.card-authors { margin: 6px 0 0; font-size: 13px; color: #374151; }

.card-source { margin: 2px 0 0; font-size: 12.5px; color: var(--muted); }

.card-summary {
  margin: 8px 0 0;
  font-size: 13.5px;
  color: #374151;
  line-height: 1.7;
}

.card-tags { margin: 8px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }

.tag {
  padding: 1px 7px;
  font-size: 11.5px;
  color: var(--green);
  background: #EDF3EE;
  border-radius: 4px;
}

.card-links { margin: 9px 0 0; font-size: 12.5px; }

.card-links a { color: var(--navy); text-decoration: none; border-bottom: 1px solid var(--gold); }

.card-links a:hover { color: var(--green); }

.pager { display: flex; justify-content: center; align-items: center; gap: 10px; margin: 22px 0 34px; }

.pager button {
  padding: 7px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--navy);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
}

.pager button:disabled { color: #B0B4BA; cursor: default; }

.pager span { font-size: 13px; color: var(--muted); }

.empty { padding: 40px 16px; text-align: center; color: var(--muted); }

.error-box { padding: 14px 16px; background: #FDF2F2; border: 1px solid #F5C6C6; border-radius: var(--radius); color: #8A2C2C; font-size: 14px; }

.site-footer { padding: 18px 0 30px; border-top: 1px solid var(--line); }

.site-footer p { margin: 0; font-size: 12px; color: var(--muted); }

@media (max-width: 560px) {
  .search-row { flex-direction: column; }
  .search-row button { width: 100%; }
  .fld { flex: 1 1 44%; }
  .card-id { float: none; display: block; margin-bottom: 4px; }
}