:root {
  --research-ink: #1d2521;
  --research-muted: #68716b;
  --research-faint: #8b938e;
  --research-line: #d8ddd8;
  --research-green: #176b4b;
  --research-green-soft: #eaf2ed;
  --research-red: #a84a35;
  --research-red-soft: #f8ece7;
  --research-paper: #f7f7f3;
  --research-surface: #fff;
  --research-serif: "Songti SC", "STSong", Georgia, serif;
}

body[data-page-kind="research-index"] {
  background: var(--research-paper) !important;
  color: var(--research-ink);
}

.research-shell {
  width: min(1180px, 100%);
  max-width: 1180px !important;
  margin: 0 auto;
  padding: 16px 32px 64px;
}

.research-shell > .site-nav {
  margin: -16px -32px 0;
}

.research-shell > .section-nav {
  width: 100%;
  margin: 10px 0 0;
}

.research-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 32px;
  padding: 42px 0 38px;
  border-bottom: 1px solid var(--research-line);
}

.research-eyebrow,
.section-index,
.directory-label,
.aside-label {
  margin: 0 0 9px;
  color: var(--research-green);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.research-header h1 {
  margin: 0;
  font-family: var(--research-serif);
  font-size: 48px;
  font-weight: 600;
  line-height: 1.35;
}

.research-intro {
  max-width: 680px;
  margin: 14px 0 0;
  color: var(--research-muted);
  font-size: 15px;
  line-height: 1.95;
}

.research-state {
  padding-bottom: 4px;
  color: var(--research-muted);
  font-size: 11px;
  text-align: right;
}

.research-state strong,
.research-state span {
  display: block;
}

.research-state strong {
  color: var(--research-ink);
  font-weight: 650;
}

.research-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 46px;
  padding: 30px 0 0;
}

.research-directory {
  position: sticky;
  top: 74px;
  align-self: start;
  max-height: calc(100vh - 92px);
  overflow-y: auto;
}

.topic-nav {
  display: block;
  margin: 0;
  border: 0;
}

.topic-mobile {
  display: none;
}

.topic-group {
  margin-bottom: 20px;
}

.topic-group-label {
  margin: 0 0 5px;
  color: var(--research-faint);
  font-size: 10px;
}

.topic-tab {
  display: block;
  width: 100%;
  min-height: 34px;
  padding: 6px 9px;
  border: 0;
  border-left: 2px solid transparent;
  color: var(--research-muted);
  background: transparent;
  font-size: 12px;
  text-align: left;
  cursor: pointer;
}

.topic-tab:hover {
  color: var(--research-ink);
  background: rgba(255, 255, 255, .65);
}

.topic-tab.active {
  border-left-color: var(--research-green);
  color: var(--research-green);
  background: var(--research-green-soft);
  font-weight: 700;
}

.directory-weekly {
  display: block;
  margin-top: 28px;
  padding-top: 15px;
  border-top: 1px solid var(--research-line);
  color: var(--research-muted);
  font-size: 11px;
  text-decoration: none;
}

.directory-weekly span {
  display: block;
  margin-top: 5px;
  color: var(--research-green);
}

.research-main {
  min-width: 0;
}

#research-content {
  max-width: none;
  margin: 0;
}

.result-hero {
  padding: 0 0 28px;
  border-bottom: 1px solid var(--research-line);
}

.result-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px 14px;
  margin-bottom: 14px;
  color: var(--research-muted);
  font-size: 10px;
}

.result-label:first-child {
  color: var(--research-green);
  font-weight: 750;
}

.status-pill {
  color: var(--research-muted);
}

.status-pill.stale,
.status-pill.unavailable {
  color: var(--research-red);
}

.result-hero h2 {
  max-width: 800px;
  margin: 0;
  color: var(--research-ink);
  font-family: var(--research-serif);
  font-size: 38px;
  font-weight: 600;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.result-answer {
  max-width: 820px;
  margin: 16px 0 0;
  color: #39433d;
  font-size: 17px;
  line-height: 2;
}

.judgment-notice {
  margin: 16px 0 0;
  padding: 10px 13px;
  border-left: 3px solid var(--research-red);
  color: #73392c;
  background: var(--research-red-soft);
  font-size: 12px;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(var(--metric-count, 3), minmax(0, 1fr));
  margin: 0;
  border-bottom: 1px solid var(--research-line);
}

.metric {
  min-width: 0;
  padding: 21px 18px 20px 0;
}

.metric + .metric {
  padding-left: 20px;
  border-left: 1px solid var(--research-line);
}

.metric span,
.metric strong,
.metric small {
  display: block;
}

.metric span {
  color: var(--research-muted);
  font-size: 11px;
}

.metric strong {
  margin: 5px 0;
  color: var(--research-ink);
  font-size: 27px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.metric small {
  color: var(--research-faint);
  font-size: 10px;
  line-height: 1.55;
}

.research-narrative {
  padding: 38px 0;
  border-bottom: 1px solid var(--research-line);
}

.research-narrative > h2 {
  max-width: 760px;
  margin: 0 0 20px;
  font-family: var(--research-serif);
  font-size: 28px;
  font-weight: 600;
}

.research-narrative .article-prose {
  max-width: 780px;
}

.research-narrative .article-prose h3 {
  margin: 30px 0 10px;
  color: var(--research-ink);
  font-family: var(--research-serif);
  font-size: 19px;
  font-weight: 600;
}

.research-narrative .article-prose h3:first-child {
  margin-top: 0;
}

.narrative-paragraph {
  margin: 0 0 16px;
  color: #39433d;
  font-family: var(--research-serif);
  font-size: 16px;
  line-height: 2.05;
}

.narrative-paragraph strong {
  color: var(--research-ink);
  font-weight: 650;
}

.narrative-paragraph .inline-sources {
  display: inline-flex;
  margin: 0 0 0 8px;
  vertical-align: baseline;
}

.article-provenance {
  max-width: 780px;
  margin: 22px 0 0;
  color: var(--research-faint);
  font-size: 10px;
  line-height: 1.7;
}

.narrative-verification {
  max-width: 780px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--research-line);
}

.narrative-verification h3 {
  margin: 0 0 10px;
  font-family: var(--research-serif);
  font-size: 19px;
  font-weight: 600;
}

.narrative-verification ol {
  margin: 0;
  padding-left: 22px;
}

.narrative-verification li {
  padding: 5px 0 5px 4px;
  color: var(--research-muted);
  font-size: 13px;
  line-height: 1.8;
}

.narrative-verification strong {
  display: block;
  color: var(--research-ink);
  font-weight: 650;
}

.research-section {
  margin: 0;
  padding: 24px 0 6px;
  scroll-margin-top: 80px;
}

.research-chart-disclosure {
  padding-bottom: 12px;
}

.chart-frame {
  position: relative;
  height: 320px;
}

.chart-frame canvas {
  display: block;
  width: 100%;
  height: 300px;
}

.chart-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--research-muted);
  font-size: 13px;
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--research-muted);
  font-size: 11px;
}

.chart-legend span::before {
  display: inline-block;
  width: 16px;
  margin-right: 6px;
  border-top: 2px solid currentColor;
  vertical-align: middle;
  content: "";
}

.chart-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 16px 0 8px;
  color: var(--research-muted);
  font-size: 11px;
}

.chart-toolbar select {
  min-height: 34px;
  padding: 5px 26px 5px 8px;
  border: 1px solid var(--research-line);
  border-radius: 3px;
  color: var(--research-ink);
  background: #fff;
}

.chart-summary,
.definition,
.method-note,
.evidence-review,
.research-boundary {
  color: var(--research-muted);
  font-size: 11px;
  line-height: 1.8;
}

.comparison-detail {
  color: var(--research-muted);
  font-size: 12px;
}

.comparison-detail > summary {
  padding: 8px 0;
  cursor: pointer;
}

.comparison-row {
  display: grid;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--research-line);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.comparison-row > *:not(:first-child) {
  text-align: right;
}

.comparison-head {
  color: var(--research-faint);
}

.article-prose {
  max-width: 760px;
}

.article-prose p {
  margin: 0 0 17px;
  color: #39433d;
  font-family: var(--research-serif);
  font-size: 16px;
  line-height: 2;
}

.article-archive-link {
  color: var(--research-green);
  font-size: 12px;
}

.research-disclosure {
  padding: 18px 0;
  border-bottom: 1px solid var(--research-line);
  scroll-margin-top: 80px;
}

.research-disclosure > summary {
  color: #435049;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.reason-list,
.source-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.reason-paragraph {
  padding: 8px 0;
  border-top: 1px solid var(--research-line);
  font-size: 12px;
}

.reason-paragraph p {
  margin: 0;
}

.inline-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.inline-sources a {
  color: var(--research-green);
  font-size: 10px;
}

.source-list li {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
  border-top: 1px solid var(--research-line);
  font-size: 11px;
}

.source-list a {
  color: var(--research-green);
  font-weight: 650;
  text-decoration: none;
}

.source-detail {
  max-width: 620px;
  color: var(--research-muted);
  text-align: right;
}

.source-detail small,
.source-detail span {
  display: block;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--research-line);
}

.comparison-item span,
.comparison-item strong,
.comparison-item small {
  display: block;
}

.comparison-item span,
.comparison-item small {
  color: var(--research-muted);
  font-size: 10px;
}

.comparison-item strong {
  font-size: 12px;
  font-weight: 650;
}

.event-study {
  padding: 18px 0;
}

.research-kicker {
  margin: 0 0 5px;
  color: var(--research-green);
  font-size: 10px;
}

.event-study h2 {
  margin: 0;
  font-family: var(--research-serif);
  font-size: 21px;
}

.event-summary {
  font-size: 13px;
}

.event-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0;
  padding: 0;
  list-style: none;
}

.event-observation {
  padding: 10px 0;
  border-top: 2px solid #9db6a8;
}

.event-observation strong,
.event-observation small {
  display: block;
}

.event-observation strong {
  font-size: 12px;
}

.event-observation small,
.case-limitation,
.event-registration {
  color: var(--research-muted);
  font-size: 10px;
}

.event-quote,
.event-detail {
  font-size: 11px;
}

.event-detail {
  padding: 12px 0;
  border-top: 1px solid var(--research-line);
}

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

.case-item {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--research-line);
  border-radius: 4px;
  background: #fff;
}

.case-select {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  color: inherit;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.case-heading small,
.case-heading strong,
.case-lesson,
.case-limitation {
  display: block;
}

.case-heading small {
  color: var(--research-faint);
  font-size: 10px;
}

.case-heading strong {
  font-size: 13px;
}

.case-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 8px;
  font-size: 10px;
}

.case-lesson,
.case-limitation {
  margin-top: 8px;
  font-size: 11px;
}

.research-latest {
  margin-top: 44px;
  padding: 34px 0 20px;
  border-top: 1px solid var(--research-line);
}

.research-section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.research-section-heading h2 {
  margin: 0;
  font-family: var(--research-serif);
  font-size: 25px;
  font-weight: 600;
}

.research-section-heading > a {
  color: var(--research-green);
  font-size: 11px;
  text-decoration: none;
}

.research-stream {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 20px;
}

.stream-story {
  display: block;
  min-width: 0;
  padding-top: 16px;
  border-top: 1px solid var(--research-line);
  color: inherit;
  text-decoration: none;
}

.stream-meta,
.stream-read {
  color: var(--research-green);
  font-size: 10px;
}

.stream-story h3 {
  margin: 9px 0;
  font-family: var(--research-serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.55;
}

.stream-story p,
.stream-note {
  color: var(--research-muted);
  font-size: 11px;
  line-height: 1.85;
}

.stream-story p {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.loading {
  padding: 50px 0;
  color: var(--research-muted);
  font-size: 13px;
  text-align: center;
}

[hidden] {
  display: none !important;
}

.profit-cash-conclusion {
  font-weight: 650;
}

.profit-cash-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 18px 0;
  border-block: 1px solid var(--research-line);
}

.profit-cash-metric {
  min-width: 0;
  padding: 14px 12px;
}

.profit-cash-metric + .profit-cash-metric {
  border-left: 1px solid var(--research-line);
}

.profit-cash-metric span,
.profit-cash-metric small {
  display: block;
  color: var(--research-muted);
  font-size: 12px;
}

.profit-cash-metric strong {
  display: block;
  margin: 4px 0;
  font-size: 18px;
}

.profit-cash-company-list {
  border-top: 1px solid var(--research-line);
}

.profit-cash-company {
  display: grid;
  grid-template-columns: minmax(130px, 0.35fr) minmax(0, 1fr);
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--research-line);
  font-size: 13px;
}

.profit-cash-boundary {
  margin-top: 12px;
}

@media (max-width: 900px) {
  .research-layout {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 28px;
  }
}

@media (max-width: 680px) {
  .research-shell {
    padding: 10px 18px 42px;
  }

  .research-shell > .site-nav {
    margin: -10px -18px 0;
  }

  .research-header {
    display: block;
    padding: 28px 0;
  }

  .research-header h1 {
    font-size: 36px;
  }

  .research-intro {
    font-size: 13px;
  }

  .research-state {
    margin-top: 18px;
    text-align: left;
  }

  .research-layout {
    display: block;
    padding-top: 18px;
  }

  .research-directory {
    position: static;
    max-height: none;
    overflow: visible;
  }

  .directory-label,
  .topic-group,
  .directory-weekly {
    display: none;
  }

  .topic-mobile {
    display: block;
    margin-bottom: 22px;
    color: var(--research-muted);
    font-size: 11px;
  }

  .topic-mobile select {
    display: block;
    width: 100%;
    min-height: 44px;
    margin-top: 6px;
    padding: 8px 10px;
    border: 1px solid var(--research-line);
    border-radius: 3px;
    background: #fff;
  }

  .result-hero h2 {
    font-size: 29px;
  }

  .result-answer {
    font-size: 15px;
  }

  .metric-strip {
    grid-template-columns: 1fr;
  }

  .metric,
  .metric + .metric {
    padding: 15px 0;
    border-left: 0;
  }

  .metric + .metric {
    border-top: 1px solid var(--research-line);
  }

  .research-narrative > h2 {
    font-size: 24px;
  }

  .narrative-paragraph {
    font-size: 15px;
    line-height: 1.95;
  }

  .chart-frame {
    height: 270px;
  }

  .chart-frame canvas {
    height: 250px;
  }

  .chart-toolbar {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .source-list li {
    display: block;
  }

  .source-detail {
    margin-top: 5px;
    text-align: left;
  }

  .comparison-grid,
  .case-list,
  .event-facts,
  .research-stream {
    grid-template-columns: 1fr;
  }

  .profit-cash-summary {
    grid-template-columns: 1fr;
  }

  .profit-cash-metric + .profit-cash-metric {
    border-top: 1px solid var(--research-line);
    border-left: 0;
  }

  .profit-cash-company {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}