:root {
  color-scheme: light;
  --bg: #f7f9fb;
  --panel: #ffffff;
  --text: #172033;
  --muted: #647084;
  --line: #dce3ea;
  --accent: #0366d6;
  --accent-2: #23344f;
  --accent-soft: #eaf2ff;
  --danger: #c24132;
  --danger-soft: #fff0ed;
  --soft: #eef4fa;
  --shadow: 0 18px 46px rgba(23, 32, 51, 0.075);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, #ffffff 0, #f9fbfd 320px, var(--bg) 760px),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header,
main,
footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 42px;
  padding: 46px 0 28px;
}

.site-header > div:first-child {
  flex: 1 1 auto;
  min-width: 0;
  padding-top: 2px;
}

.site-header.compact {
  align-items: flex-start;
  padding-bottom: 10px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.brand-eyebrow img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

h1 {
  margin: 0;
  max-width: none;
  font-size: clamp(34px, 3.35vw, 46px);
  line-height: 1.08;
  letter-spacing: 0;
}

.site-header:not(.compact) h1 {
  white-space: nowrap;
}

.lead {
  max-width: 820px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.lead span {
  display: block;
}

.lead span:first-child {
  white-space: nowrap;
}

.hero-aside {
  display: grid;
  gap: 18px;
  flex: 0 0 auto;
  padding-top: 6px;
}

.follow-card {
  display: inline-flex;
  align-items: center;
  justify-self: center;
  gap: 16px;
  flex: 0 0 auto;
  border: 0;
  border-radius: 8px;
  background: transparent;
  padding: 2px;
  box-shadow: none;
}

.follow-card small {
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  white-space: nowrap;
}

.follow-card small strong,
.follow-card small em {
  display: block;
  font-style: normal;
}

.follow-card small em {
  color: var(--danger);
  margin-top: 4px;
}

.wechat-qr {
  width: 86px;
  height: 86px;
  flex: 0 0 auto;
  border: 0;
  border-radius: 4px;
  background: #fff;
  padding: 1px;
}

.stats {
  display: grid;
  grid-template-columns: 148px 108px 148px;
  gap: 8px;
  flex: 0 0 auto;
}

.stats span {
  display: flex;
  min-height: 92px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  padding: 12px 10px;
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
}

.stats strong {
  display: block;
  color: var(--text);
  font-size: 22px;
  line-height: 1.2;
  white-space: nowrap;
  overflow-wrap: normal;
  word-break: keep-all;
}

.quick-sections {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0 18px;
}

@media (max-width: 1023px) {
  .quick-sections {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.quick-card {
  display: grid;
  gap: 7px;
  min-height: 108px;
  border: 1px solid rgba(220, 227, 234, 0.95);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 22px rgba(23, 32, 51, 0.035);
  padding: 16px;
  color: var(--text);
}

.quick-card:hover {
  border-color: rgba(3, 102, 214, 0.24);
  background: #fbfdff;
  text-decoration: none;
}

.quick-card span {
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 700;
}

.quick-card strong {
  font-size: 24px;
  line-height: 1.2;
}

.quick-card small {
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 2px 0 14px;
}

.site-nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--accent-2);
  background: var(--panel);
}

.site-nav-link:hover {
  background: var(--soft);
  text-decoration: none;
}

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

.page-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -4px 0 0;
}

.page-tools a {
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px 10px;
  background: #fbfcfb;
  color: var(--accent-2);
  font-size: 14px;
}

.page-tools a:hover {
  background: var(--soft);
  text-decoration: none;
}

.toolbar {
  display: grid;
  grid-template-columns: auto minmax(260px, 1fr) 160px auto;
  gap: 12px;
  margin: 22px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  padding: 12px;
  box-shadow: 0 12px 30px rgba(23, 32, 51, 0.04);
}

.search-box {
  display: grid;
  grid-template-columns: 1fr auto;
  min-width: 0;
}

.search-box input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

#clearSearch {
  min-height: 44px;
  border: 1px solid var(--line);
  border-left: 0;
  border-radius: 0 8px 8px 0;
  background: #fbfcfb;
  color: var(--accent-2);
  font: inherit;
  padding: 0 12px;
  cursor: pointer;
  white-space: nowrap;
}

#clearSearch:hover {
  background: var(--soft);
}

.source-tabs {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(112px, 1fr));
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
}

.source-tabs button {
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font: inherit;
  padding: 0 12px;
  cursor: pointer;
  white-space: nowrap;
}

.source-tabs button:last-child {
  border-right: 0;
}

.source-tabs button.active {
  background: var(--accent-2);
  color: #fff;
}

input,
select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  padding: 10px 12px;
}

input:focus,
select:focus {
  outline: 2px solid rgba(3, 102, 214, 0.22);
  border-color: var(--accent);
}

.segmented {
  display: inline-grid;
  grid-template-columns: repeat(3, minmax(82px, 1fr));
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
}

.segmented button {
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font: inherit;
  padding: 0 12px;
  cursor: pointer;
}

.segmented button:last-child {
  border-right: 0;
}

.segmented button.active {
  background: var(--accent);
  color: #fff;
}

.segmented span {
  font-size: 12px;
  opacity: 0.82;
}

mark {
  border-radius: 3px;
  padding: 0 2px;
  background: #fff2a8;
  color: inherit;
}

.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 20px;
  align-items: start;
}

.latest-week {
  margin: 20px 0 24px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.month-page .week-overview {
  margin: 0;
}

.weekly-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
}

.week-card {
  min-height: 138px;
  padding: 15px 17px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.week-card:nth-child(3n) {
  border-right: 0;
}

.week-card h3 {
  margin: 7px 0 5px;
  font-size: 16px;
  line-height: 1.3;
}

.week-card h3 a,
.week-card .zh-title a {
  display: inline;
}

.week-card a:focus-visible {
  outline: 3px solid rgba(3, 102, 214, 0.28);
  outline-offset: 3px;
  border-radius: 3px;
}

.week-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.week-card .zh-title,
.zh-detail-title {
  color: var(--accent-2);
  font-weight: 700;
}

.week-card .zh-title {
  margin-bottom: 2px;
}

.week-card .week-summary {
  margin-top: 10px;
  color: var(--text);
  font-size: 14px;
  line-height: 1.55;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  border: 1px solid rgba(194, 65, 50, 0.28);
  border-radius: 999px;
  padding: 0 8px;
  color: var(--danger);
  background: var(--danger-soft);
  font-size: 12px;
  font-weight: 700;
}

.archive-panel,
.results-panel,
.month-summary,
.paper-detail {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.about-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  overflow: hidden;
}

.about-summary div {
  display: grid;
  gap: 4px;
  min-height: 96px;
  background: var(--panel);
  padding: 16px;
}

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

.about-summary strong {
  color: var(--text);
  font-size: 24px;
  line-height: 1.2;
}

.about-summary small {
  color: var(--muted);
}

.archive-panel {
  position: sticky;
  top: 14px;
  max-height: calc(100vh - 28px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 16px;
}

.archive-panel::-webkit-scrollbar {
  width: 8px;
}

.archive-panel::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: #cbd5d1;
}

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

.side-heading {
  padding-top: 18px;
}

.archive-list {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.archive-year {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  overflow: hidden;
}

.archive-year summary {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  color: var(--accent-2);
  font-weight: 700;
  cursor: pointer;
}

.archive-year summary:hover {
  background: var(--soft);
}

.archive-year summary small {
  color: var(--muted);
  font-weight: 400;
  white-space: nowrap;
}

.archive-year-list {
  display: grid;
  gap: 6px;
  border-top: 1px solid var(--line);
  padding: 8px;
  background: #fbfcfb;
}

.archive-link {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 10px;
  color: var(--text);
}

.archive-link:hover {
  background: var(--soft);
  text-decoration: none;
}

.archive-link small {
  color: var(--muted);
  white-space: nowrap;
}

.results-panel {
  overflow: hidden;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

#resultCount {
  color: var(--muted);
}

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

.paper-list {
  display: grid;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px;
  border-top: 1px solid var(--line);
}

.pagination button {
  min-width: 86px;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

.pagination button:not(:disabled):hover {
  background: var(--soft);
}

.pagination button:disabled {
  cursor: not-allowed;
  color: var(--muted);
  opacity: 0.55;
}

#pageInfo {
  color: var(--muted);
  font-size: 14px;
}

.paper-card {
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.paper-card:last-child {
  border-bottom: 0;
}

.paper-card h3 {
  margin: 4px 0 8px;
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: 0;
}

.paper-zh-title {
  margin: -2px 0 10px;
  color: var(--accent-2);
  font-size: 16px;
  font-weight: 700;
}

/* Reader-approved title treatment from Phase 2 preview (home + search). */
.week-card h3 a,
.paper-card h3 a {
  color: var(--accent);
}

.week-card .zh-title a,
.paper-zh-title a {
  color: var(--text);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.authors {
  color: var(--muted);
}

.meta-line {
  color: var(--muted);
  font-size: 14px;
}

.summary {
  margin: 10px 0 0;
}

.summary-more {
  white-space: nowrap;
  font-weight: 700;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 30;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--accent-2);
  color: #fff;
  box-shadow: 0 10px 24px rgba(23, 32, 28, 0.18);
  font: 700 22px/1 system-ui, sans-serif;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 180ms ease-out, transform 180ms ease-out, background 180ms ease-out;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent);
}

.back-to-top:focus-visible {
  outline: 3px solid rgba(35, 77, 71, 0.24);
  outline-offset: 3px;
}

@media (max-width: 640px) {
  .back-to-top {
    right: 14px;
    bottom: 14px;
  }
}

.translation-missing {
  margin: 12px 0;
  padding: 10px 12px;
  border-left: 3px solid var(--line);
  color: var(--muted);
  background: var(--soft);
}

.month-page {
  display: grid;
  gap: 14px;
}

.about-page {
  display: grid;
  gap: 14px;
}

.month-summary,
.paper-detail,
.week-toc,
.week-actions {
  padding: 18px;
}

.week-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.week-actions a {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 5px 10px;
  background: #fbfcfb;
}

.week-actions a:hover {
  background: var(--soft);
  text-decoration: none;
}

.week-summary-grid {
  margin: 0;
}

.week-toc {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.week-papers {
  display: grid;
  gap: 14px;
}

.compact-head {
  padding: 0 0 12px;
  border-bottom: 1px solid var(--line);
}

.toc-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding-top: 12px;
}

.toc-link {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  background: #fbfcfb;
}

.toc-link:hover {
  background: var(--soft);
  text-decoration: none;
}

.toc-link small {
  flex: 0 0 auto;
  color: var(--muted);
}

.toc-link.china-hit {
  border-color: rgba(194, 65, 50, 0.28);
  background: var(--danger-soft);
}

.month-summary p {
  margin: 0 0 8px;
}

.paper-detail h2 {
  margin: 8px 0 8px;
  font-size: 24px;
  line-height: 1.32;
}

.paper-detail h3 {
  margin: 18px 0 6px;
  font-size: 16px;
  color: var(--accent-2);
}

.paper-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}

footer {
  padding: 28px 0 44px;
  color: var(--muted);
  font-size: 14px;
}

footer p {
  margin: 4px 0;
}

.about-contact {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.about-contact h2 {
  margin-top: 0;
}

.wechat-qr.large {
  width: 118px;
  height: 118px;
}

@media (max-width: 820px) {
  .site-header {
    display: block;
  }

  .site-header:not(.compact) h1 {
    white-space: normal;
  }

  .lead span:first-child {
    white-space: normal;
  }

  .stats {
    grid-template-columns: repeat(3, 1fr);
    min-width: 0;
    margin-top: 18px;
  }

  .hero-aside {
    margin-top: 18px;
  }

  .follow-card {
    box-shadow: none;
  }

  .toolbar,
  .about-summary,
  .layout {
    grid-template-columns: 1fr;
  }

  .source-tabs,
  .segmented,
  .search-box {
    width: 100%;
  }

  .site-nav {
    gap: 6px;
  }

  .weekly-grid {
    grid-template-columns: 1fr;
  }

  .toc-list {
    grid-template-columns: 1fr;
  }

  .week-card,
  .week-card:nth-child(3n) {
    border-right: 0;
  }

  .archive-panel {
    position: static;
    max-height: 420px;
  }

  .quick-card {
    min-height: auto;
  }

  .about-contact {
    align-items: flex-start;
  }

}

@media (max-width: 520px) {
  .quick-sections {
    grid-template-columns: 1fr;
  }

  .site-header,
  main,
  footer {
    width: min(100% - 20px, 1180px);
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .follow-card {
    margin-top: 12px;
  }

  .wechat-qr {
    width: 88px;
    height: 88px;
    margin-top: 12px;
  }

  .about-contact {
    display: block;
  }

  .panel-head,
  .paper-meta,
  .pagination {
    display: block;
  }

  .pagination button,
  #pageInfo {
    width: 100%;
    display: block;
    margin-top: 8px;
    text-align: center;
  }

  .site-nav-link {
    min-height: 32px;
    padding: 5px 10px;
  }
}

.week-insights {
  margin: 28px 0;
  padding: 22px;
  border: 1px solid #dde3ea;
  background: #fbfcfd;
}

.presence {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 34px;
  margin-left: 18px;
  padding: 0 4px;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.presence-dot {
  color: #1a9b52;
  font-size: 14px;
  line-height: 1;
}

.presence-count {
  display: inline-block;
}

.week-status-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 22px;
  margin: 18px 0 24px;
  padding: 12px 2px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.week-status-line strong {
  color: var(--text);
  font-size: 20px;
}

.week-status-line small {
  margin-left: auto;
  color: var(--muted);
}

.week-insights > .topic-panel {
  margin-top: 16px;
}

.week-insights .topic-panel {
  border-left: 3px solid var(--accent);
}

.map-panel {
  margin-top: 14px;
}

.map-panel > summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  color: var(--text);
  font-weight: 700;
  list-style: none;
}

.map-panel > summary::-webkit-details-marker {
  display: none;
}

.map-panel > summary::before {
  content: "+";
  margin-right: 8px;
  color: var(--accent);
  font-size: 20px;
  font-weight: 400;
}

.map-panel[open] > summary::before {
  content: "−";
}

.map-panel > summary small {
  color: var(--muted);
  font-weight: 400;
}

.map-panel-content {
  margin-top: 16px;
}

.week-insights .panel-head p,
.map-head p {
  margin: 6px 0 0;
  color: #5d6b7a;
  line-height: 1.6;
}

.clear-insight-filter {
  border: 1px solid #cfd8e3;
  background: #fff;
  color: #315577;
  padding: 8px 12px;
  cursor: pointer;
}

.insight-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(420px, 1.45fr);
  gap: 18px;
  margin-top: 18px;
}

.insight-panel {
  border: 1px solid #e0e6ee;
  background: #fff;
  padding: 16px;
}

.insight-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.insight-tabs button,
.topic-card,
.topic-bar,
.topic-bubble {
  border: 1px solid #d8e0e8;
  background: #fff;
  color: #26384d;
  cursor: pointer;
}

.insight-tabs button {
  padding: 7px 10px;
}

.insight-tabs button.active,
.topic-card.is-selected,
.topic-bar.is-selected,
.topic-bubble.is-selected {
  border-color: #2b6c9e;
  color: #17466f;
  background: #f0f7fb;
}

.topic-view {
  display: none;
}

.topic-view.active {
  display: block;
}

.topic-bar {
  position: relative;
  width: 100%;
  min-height: 38px;
  display: grid;
  grid-template-columns: 1fr 44px;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  padding: 8px 10px;
  text-align: left;
  overflow: hidden;
}

.topic-bar i {
  position: absolute;
  inset: auto auto 0 0;
  height: 3px;
  background: #2b6c9e;
}

.topic-bar strong {
  text-align: right;
  color: #17466f;
}

.topic-bar:hover,
.topic-bar:focus-visible {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.topic-bubble {
  width: var(--size);
  min-width: 64px;
  height: var(--size);
  min-height: 64px;
  border-radius: 999px;
  margin: 6px;
  vertical-align: middle;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.topic-bubble span {
  font-size: 12px;
  max-width: 88px;
  line-height: 1.25;
}

.topic-card-grid {
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
}

.topic-card-grid.active {
  display: grid;
}

.topic-card {
  padding: 12px;
  text-align: left;
}

.topic-card strong {
  display: block;
  margin-top: 8px;
  color: #17466f;
  font-size: 24px;
}

.topic-card small {
  display: block;
  margin-top: 8px;
  color: #5d6b7a;
  font-size: 12px;
  line-height: 1.45;
}

.map-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
}

.map-note {
  font-size: 13px;
  white-space: nowrap;
}

.world-map-shell {
  position: relative;
  border-top: 1px solid #edf1f5;
  padding-top: 10px;
}

.world-map {
  width: 100%;
  height: auto;
  display: block;
}

.country-shape {
  stroke: #aab4bf;
  stroke-width: 0.55;
  transition: opacity .15s ease, fill .15s ease, stroke .15s ease;
}

.country-shape.is-hovered,
.country-shape.is-selected {
  stroke: #111827;
  stroke-width: 1.6;
}

.country-shape.is-muted {
  opacity: .18;
}

.paper-detail {
  scroll-margin-top: 20px;
}

.paper-detail.anchor-target {
  animation: paper-anchor-flash 1.4s ease-out;
}

.paper-detail:target {
  animation: paper-anchor-flash 1.4s ease-out;
}

@keyframes paper-anchor-flash {
  0% { box-shadow: inset 3px 0 0 var(--danger); background: #fff8f6; }
  100% { box-shadow: inset 3px 0 0 transparent; background: transparent; }
}

.map-tooltip {
  position: absolute;
  z-index: 5;
  min-width: 132px;
  padding: 10px 12px;
  border: 1px solid #d9e1ea;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 18px 40px rgba(31, 41, 55, .14);
  pointer-events: none;
}

.map-tooltip strong,
.map-tooltip span {
  display: block;
}

.map-tooltip span {
  margin-top: 4px;
  color: #667085;
}

.map-legend {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 10px auto 4px;
  justify-content: center;
}

.legend-empty {
  min-width: 74px;
  border: 1px solid #aab4bf;
  padding: 6px 8px;
  background:
    repeating-linear-gradient(-45deg, #fff 0 4px, #edf1f5 4px 7px);
  color: #526171;
  font-size: 13px;
  text-align: center;
}

.map-legend button {
  min-width: 64px;
  border: 1px solid #aab4bf;
  border-left: 0;
  padding: 6px 8px;
  background: #fff;
  cursor: pointer;
}

@media (max-width: 720px) {
  .week-status-line {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .week-status-line small {
    margin-left: 0;
  }

  .map-panel > summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }
}

.map-legend button:nth-of-type(1) {
  background: #cfe8f3;
}

.map-legend button:nth-of-type(2) {
  background: #73add2;
}

.map-legend button:nth-of-type(3) {
  background: #2b6c9e;
  color: #fff;
}

.map-legend button.legend-active {
  outline: 2px solid #111827;
  z-index: 1;
}

.selected-region-papers {
  margin-top: 12px;
  padding: 10px 12px;
  background: #f7f9fb;
  border: 1px solid #e2e8f0;
  color: #4b5b6b;
}

.selected-region-papers a {
  display: block;
  margin-top: 6px;
}

.active-insight-filter {
  margin: 14px 0 0;
  color: #5d6b7a;
}

.paper-detail[hidden] {
  display: none;
}

.topic-link {
  display: inline-flex;
  margin: 0 0 10px 8px;
  color: #245f9e;
  font-size: 13px;
}

.paper-page,
.topics-page {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.detail-header {
  padding: 26px 0 0;
}

.detail-brand {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
}

.standalone-paper {
  max-width: none;
  margin: 24px auto 0;
  padding: 26px 0 30px;
  border-top: 2px solid #152334;
  border-bottom: 1px solid #d8e0e8;
}

.standalone-paper > h1,
.standalone-paper > h2 {
  max-width: 1050px;
  margin: 18px 0 10px;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.18;
  text-wrap: balance;
}

.abstract-block h2 {
  margin: 0 0 8px;
  color: #152334;
  font-size: 16px;
  line-height: 1.4;
}

.standalone-zh-title {
  margin: 0 0 16px;
  color: #245f9e;
  font-size: 21px;
  line-height: 1.55;
}

.paper-detail-topline,
.paper-taxonomy,
.paper-actions,
.topic-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.paper-detail-topline,
.paper-taxonomy {
  color: #607080;
  font-size: 14px;
}

.paper-taxonomy {
  margin: 18px 0 22px;
}

.abstract-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  margin-top: 30px;
  border-top: 1px solid #d8e0e8;
  border-bottom: 1px solid #d8e0e8;
}

.abstract-block {
  min-width: 0;
  padding: 24px 28px 30px 0;
}

.abstract-block + .abstract-block {
  padding-right: 0;
  padding-left: 28px;
  border-left: 1px solid #d8e0e8;
}

.abstract-block h3 {
  margin-bottom: 8px;
  color: #152334;
  font-size: 16px;
}

.abstract-block p {
  max-width: 64ch;
  margin: 0;
  color: #354556;
  line-height: 1.85;
}

.zh-block {
  background: #fbfdff;
}

.paper-actions {
  margin-top: 24px;
}

.paper-actions a,
.paper-actions button,
.topic-toolbar a,
.topic-toolbar select {
  min-height: 42px;
  border: 1px solid #cbd5df;
  padding: 9px 14px;
  background: #fff;
  color: #245f9e;
  cursor: pointer;
}

.paper-actions .primary-action {
  border-color: #245f9e;
  background: #245f9e;
  color: #fff;
}

.action-feedback {
  min-height: 1.6em;
  margin: 10px 0 0;
  color: #536477;
  font-size: 14px;
}

.action-feedback.is-error {
  color: #9f2d23;
}

.related-panel {
  margin: 48px 0;
}

.compact-results {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.compact-card .authors {
  margin-bottom: 0;
}

.topic-directory {
  margin: 32px 0 56px;
}

.topic-directory-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.topic-directory-card {
  display: grid;
  min-height: 190px;
  grid-template-rows: auto auto 1fr auto;
  gap: 8px;
  border-top: 3px solid #245f9e;
  padding: 20px;
  background: #fff;
  box-shadow: 0 8px 28px rgba(31, 41, 55, .07);
  color: #152334;
  transition: transform .16s ease, box-shadow .16s ease;
}

.topic-directory-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(31, 41, 55, .11);
}

.topic-directory-card strong {
  font-size: 26px;
}

.topic-directory-card p,
.topic-directory-card small {
  margin: 0;
  color: #607080;
  line-height: 1.55;
}

.topic-results {
  margin: 30px 0 56px;
}

.topic-toolbar {
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid #d8e0e8;
}

.topic-toolbar label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #607080;
}

.loading-state,
.empty-state {
  padding: 32px;
  background: #f7f9fb;
  color: #607080;
}

.map-error {
  color: #991b1b;
  background: #fff5f5;
  border: 1px solid #fecaca;
  padding: 10px 12px;
}

@media (max-width: 820px) {
  .insight-grid,
  .map-head {
    display: block;
  }

  .map-note {
    white-space: normal;
  }

  .map-panel {
    margin-top: 14px;
  }

  .map-legend {
    justify-content: flex-start;
    overflow-x: auto;
  }

  .topic-directory-grid,
  .compact-results {
    grid-template-columns: 1fr;
  }

  .standalone-paper {
    padding: 24px 0;
  }

  .standalone-paper h2 {
    font-size: 24px;
  }

  .standalone-zh-title {
    font-size: 18px;
  }

  .paper-actions > * {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .abstract-pair {
    grid-template-columns: 1fr;
  }

  .abstract-block,
  .abstract-block + .abstract-block {
    padding: 22px 0;
    border-left: 0;
  }

  .abstract-block + .abstract-block {
    border-top: 1px solid #d8e0e8;
  }
}