:root {
  --bg: #f4f6fb;
  --bg-soft: #eaeef7;
  --card: #ffffff;
  --ink: #16202e;
  --ink-soft: #3c4a5e;
  --muted: #6b7889;
  --line: #e2e8f2;
  --accent: #2f5bea;
  --accent-soft: #e7ecfd;
  --accent-2: #0d9e94;
  --accent-2-soft: #e2f6f4;
  --warn: #b4530a;
  --warn-soft: #fdf1e3;
  --danger: #b42318;
  --danger-soft: #fdecea;
  --ok: #067647;
  --shadow: 0 1px 2px rgba(22, 32, 46, 0.06), 0 8px 24px -12px rgba(22, 32, 46, 0.18);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1420;
    --bg-soft: #16202e;
    --card: #16202e;
    --ink: #eaf0f8;
    --ink-soft: #c2cede;
    --muted: #93a2b7;
    --line: #26354a;
    --accent: #7d9dff;
    --accent-soft: #1e2b4a;
    --accent-2: #4fd6c8;
    --accent-2-soft: #16353a;
    --warn: #f0b27a;
    --warn-soft: #33261a;
    --danger: #f6938a;
    --danger-soft: #3a1f1d;
    --ok: #5fd39b;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px -16px rgba(0, 0, 0, 0.8);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
}

/* ---------------------------------------------------------------- header */

.site-header {
  background: linear-gradient(135deg, #1d3ba8 0%, #2f5bea 45%, #0d9e94 130%);
  color: #fff;
  padding: 26px 0 30px;
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background: linear-gradient(135deg, #101c3d 0%, #1e3a7a 60%, #0d5a55 130%);
  }

}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
}

.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.35);
  display: grid;
  place-items: center;
  font-size: 22px;
  font-family: Georgia, "Songti SC", serif;
}

.brand-text h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.4px;
}

.brand-text p {
  margin: 2px 0 0;
  font-size: 13px;
  opacity: 0.85;
}

.header-status {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 12.5px;
}

.status-pill {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  padding: 4px 11px;
  white-space: nowrap;
}

.status-pill.ok::before,
.status-pill.warn::before,
.status-pill.bad::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: 1px;
}

.status-pill.ok::before {
  background: #6ff0c0;
}

.status-pill.warn::before {
  background: #ffd479;
}

.status-pill.bad::before {
  background: #ff9d94;
}

/* ---------------------------------------------------------------- layout */

main {
  padding: 26px 0 50px;
  display: block;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  margin-bottom: 20px;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 26px 0 12px;
}

.section-head h2,
.panel h2 {
  margin: 0;
  font-size: 18px;
}

.section-sub {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

h2 + .section-sub,
.panel h2 + .section-sub {
  margin-top: 4px;
}

.alert {
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 18px;
  font-size: 13.5px;
  border: 1px solid transparent;
}

.alert.warn {
  background: var(--warn-soft);
  border-color: color-mix(in srgb, var(--warn) 30%, transparent);
  color: var(--warn);
}

.alert.danger {
  background: var(--danger-soft);
  border-color: color-mix(in srgb, var(--danger) 30%, transparent);
  color: var(--danger);
}

.alert code {
  background: rgba(0, 0, 0, 0.08);
  padding: 1px 6px;
  border-radius: 5px;
  font-size: 12.5px;
}

/* ---------------------------------------------------------------- controls */

.controls {
  display: grid;
  gap: 14px;
}

.control-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.control-label {
  font-size: 12.5px;
  color: var(--muted);
  min-width: 62px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.chip {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--ink-soft);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 12.5px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.chip .chip-count {
  opacity: 0.7;
  margin-left: 5px;
  font-size: 11.5px;
}

/* ---------------------------------------------------------------- overview */

.overview {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  align-items: center;
  justify-content: space-between;
}

.overview-title {
  font-size: 17px;
  font-weight: 600;
  margin: 0;
}

.overview-sub {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.stat-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
  min-width: 62px;
}

.stat b {
  display: block;
  font-size: 22px;
  line-height: 1.2;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.stat span {
  font-size: 12px;
  color: var(--muted);
}

/* ---------------------------------------------------------------- topics */

.topic-list {
  display: grid;
  gap: 18px;
}

.topic-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 22px 16px;
}

.topic-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.topic-index {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 30px;
  color: var(--accent);
  opacity: 0.5;
  line-height: 1.1;
  font-weight: 700;
}

.topic-title-wrap {
  flex: 1 1 auto;
  min-width: 0;
}

.topic-title {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.2px;
  line-height: 1.35;
  color: var(--ink);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.topic-summary {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.badge {
  font-size: 11.5px;
  border-radius: 6px;
  padding: 2px 8px;
  font-weight: 500;
  white-space: nowrap;
}

.badge-fresh {
  background: var(--accent-2-soft);
  color: var(--accent-2);
}

.badge-hot {
  background: var(--accent-soft);
  color: var(--accent);
}

.heatbar {
  height: 6px;
  border-radius: 999px;
  background: var(--bg-soft);
  overflow: hidden;
  margin: 14px 0 10px;
}

.heatbar > span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.outlet-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 4px;
}

.outlet-chip {
  font-size: 11.5px;
  border: 1px dashed var(--line);
  border-radius: 999px;
  padding: 2px 10px;
  color: var(--ink-soft);
  background: transparent;
}

.block-title {
  font-size: 13px;
  color: var(--muted);
  margin: 16px 0 8px;
  letter-spacing: 0.5px;
}

/* ---------------------------------------------------------------- entries */

.entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.entry {
  border-left: 3px solid var(--line);
  padding: 2px 0 2px 12px;
}

.entry.type-journal {
  border-left-color: var(--accent);
}

.entry.type-cnjournal {
  border-left-color: #d94f70;
}

.entry.type-news {
  border-left-color: var(--accent-2);
}

.entry.type-policy {
  border-left-color: #c88a2e;
}

.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 11.5px;
  color: var(--muted);
}

.entry-outlet {
  font-weight: 600;
  color: var(--ink-soft);
}

.entry-title {
  display: block;
  margin: 3px 0 2px;
  color: var(--ink);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.55;
}

.entry-title:hover {
  color: var(--accent);
  text-decoration: underline;
}

.entry-sub {
  font-size: 12.5px;
  color: var(--muted);
}

.entry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 4px;
}

.mini-tag {
  font-size: 11px;
  background: var(--bg-soft);
  color: var(--ink-soft);
  border-radius: 5px;
  padding: 1px 7px;
}

.muted-tag {
  background: transparent;
  border: 1px dashed var(--line);
  color: var(--muted);
}

.entry details {
  margin-top: 5px;
}

.entry details summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--accent);
  list-style: none;
}

.entry details summary::marker {
  content: "";
}

.entry details summary::before {
  content: "▸ ";
}

.entry details[open] summary::before {
  content: "▾ ";
}

.entry details p {
  margin: 6px 0 0;
  font-size: 12.5px;
  color: var(--ink-soft);
  background: var(--bg-soft);
  border-radius: 8px;
  padding: 10px 12px;
}

.entry-list.compact {
  max-height: 620px;
  overflow-y: auto;
  padding-right: 6px;
}

/* ---------------------------------------------------------------- extension */

.extension {
  margin-top: 20px;
  border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
  border-radius: 12px;
  background: var(--bg-soft);
  overflow: hidden;
}

.extension > summary {
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  padding: 14px 18px;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: #fff;
  /* 固定用深色渐变（而非主题变量），保证深浅色模式下白字对比度都足够 */
  background: linear-gradient(100deg, #2350d8 0%, #0b7f78 135%);
  list-style: none;
  transition: filter 0.15s;
}

.extension > summary::marker {
  content: "";
}

.extension > summary::before {
  content: "✦";
  font-size: 14px;
  opacity: 0.92;
}

.extension > summary::after {
  content: "▾";
  margin-left: auto;
  font-size: 13px;
  transition: transform 0.18s ease;
}

.extension[open] > summary::after {
  transform: rotate(180deg);
}

.extension > summary:hover {
  filter: brightness(1.08);
}

.idea-list {
  list-style: none;
  margin: 0;
  padding: 14px 16px 2px;
  display: grid;
  gap: 12px;
}

.idea {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
}

.extension > .idea-list:last-child {
  padding-bottom: 16px;
}

.idea h4 {
  margin: 0 0 6px;
  font-size: 14.5px;
}

.idea dl {
  margin: 0;
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 3px 10px;
  font-size: 12.5px;
}

.idea dt {
  color: var(--muted);
}

.idea dd {
  margin: 0;
  color: var(--ink-soft);
}

/* ---------------------------------------------------------------- sources */

.sources table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
  font-size: 13px;
}

.sources th,
.sources td {
  text-align: left;
  padding: 7px 10px;
  border-bottom: 1px solid var(--line);
}

.sources th {
  color: var(--muted);
  font-weight: 500;
  font-size: 12px;
}

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: 1px;
}

.dot.ok {
  background: var(--ok);
}

.dot.bad {
  background: var(--danger);
}

.dot.warn {
  background: var(--warn);
}

/* ---------------------------------------------------------------- footer */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 22px 0 30px;
  color: var(--muted);
  font-size: 12.5px;
}

.site-footer p {
  margin: 0 0 6px;
}

.footer-meta {
  font-variant-numeric: tabular-nums;
}

/* ---------------------------------------------------------------- misc */

.empty {
  color: var(--muted);
  font-size: 13.5px;
  padding: 6px 0;
}

.muted-inline {
  color: var(--muted);
  font-size: 12px;
}

details > summary {
  outline-offset: 3px;
}

@media (max-width: 640px) {
  body {
    font-size: 14.5px;
  }

  .wrap {
    width: calc(100% - 24px);
  }

  .topic-card {
    padding: 16px 15px 12px;
  }

  .topic-title {
    font-size: 20px;
  }

  .topic-index {
    font-size: 24px;
  }

  .extension > summary {
    font-size: 14.5px;
    padding: 12px 14px;
  }

  .topic-head {
    flex-wrap: wrap;
  }

  .idea dl {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .idea dt {
    margin-top: 6px;
  }

  .stat-row {
    gap: 16px;
  }
}