/* Homepage only: shared typography, section headings and blue-grey palette. */
body[data-page="index"] {
  --home-ink: #153c56;
  --home-text: #405b70;
  --home-muted: #60768a;
  --home-accent: #075e9c;
  --home-line: #d7e3ec;
  --home-surface: #f4f8fb;
  background: #fff;
  color: var(--home-ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.8;
}
body[data-page="index"] :is(button, input, select, textarea) { font-family: inherit; }
body[data-page="index"] main :is(.showcase-head, .section-title) {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0 0 20px;
  padding: 0 0 12px;
  border: 0;
  border-bottom: 1px solid var(--home-line);
}
body[data-page="index"] main .home-section-heading {
  display: block;
  margin: 0;
  padding: 0;
  font-family: inherit;
  font-size: 22px;
  line-height: 1.5;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--home-ink);
  white-space: normal;
  overflow-wrap: anywhere;
}
body[data-page="index"] main .home-heading-zh { display: inline; font-size: inherit; line-height: inherit; font-weight: inherit; color: inherit; }
body[data-page="index"] main .home-heading-en {
  display: inline;
  margin-left: 8px;
  font-family: inherit;
  font-size: 13px;
  line-height: 1.5;
  font-weight: 400;
  font-style: normal;
  letter-spacing: .02em;
  color: var(--home-muted);
}
body[data-page="index"] main > section { margin-top: 40px; }
body[data-page="index"] .home-showcase { column-gap: 32px; }
body[data-page="index"] .observation-lead {
  column-gap: 32px;
  padding: 0 0 28px;
  border-bottom: 1px solid var(--home-line);
}
body[data-page="index"] .observation-main { padding: 0; min-width: 0; }
body[data-page="index"] .observation-brief { padding: 0; min-width: 0; border: 0; }
body[data-page="index"] .observation-brief > h2 {
  padding-bottom: 12px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--home-line);
}
body[data-page="index"] .observation-masthead { gap: 0; }
body[data-page="index"] :is(.home-update-meta, .observation-kicker, .observation-coverage, .observation-open) {
  font-family: inherit;
  font-size: 13px;
  line-height: 1.8;
  color: var(--home-muted);
  letter-spacing: 0;
}
body[data-page="index"] .home-update-meta { margin: 0 0 16px; }
body[data-page="index"] .observation-main > h2 { font-size: 26px; line-height: 1.6; font-weight: 600; margin: 16px 0; }
body[data-page="index"] :is(.observation-deck, .observation-highlights, .observation-event-grid p) {
  font-size: 15px;
  line-height: 1.8;
  color: var(--home-text);
}
body[data-page="index"] main :is(h3, .observation-event-grid h3, .observation-brief h3) {
  font-family: inherit;
  font-size: 18px;
  line-height: 1.65;
  font-weight: 600;
  color: var(--home-ink);
}
body[data-page="index"] .observation-brief li { border-color: var(--home-line); }
body[data-page="index"] .observation-brief li::marker { color: var(--home-muted); }
body[data-page="index"] :is(.observation-brief time, .observation-brief li > span, .observation-event-grid small, .observation-tools span) { color: var(--home-muted); }
body[data-page="index"] :is(.observation-primary, .observation-search button) { background: var(--home-accent); border-radius: 4px; }
body[data-page="index"] :is(.observation-open a, .observation-read, .observation-tools a) { color: var(--home-accent); }
body[data-page="index"] .observation-search { background: var(--home-surface); border: 1px solid var(--home-line); border-radius: 6px; gap: 24px; padding: 24px; }
body[data-page="index"] main .observation-search .home-section-heading { font-size: 18px; }
body[data-page="index"] main .observation-search .home-heading-en { font-size: 12px; }
body[data-page="index"] .observation-search input { border-color: var(--home-line); border-radius: 4px; font-size: 15px; }
body[data-page="index"] .observation-events { padding: 0; }
body[data-page="index"] .observation-event-grid article { border-color: var(--home-line); }
body[data-page="index"] .observation-tools { padding: 0; border: 0; }
body[data-page="index"] .observation-tools > h2 { padding-bottom: 12px; margin-bottom: 20px; border-bottom: 1px solid var(--home-line); }
body[data-page="index"] .observation-tools a { border-color: var(--home-line); border-radius: 6px; }
body[data-page="index"] :is(.membership-promo-header h2, .home-wechat-copy h2) { padding-bottom: 12px; border-bottom: 1px solid var(--home-line); }
body[data-page="index"] .slide-caption strong { font-family: inherit; }
body[data-page="index"] :is(.hot-item > a, .observation-brief h3) { font-size: 16px; line-height: 1.65; font-weight: 600; }
body[data-page="index"] :is(.hot-item time, .observation-brief time) { font-size: 12px; font-weight: 400; color: var(--home-muted); }
body[data-page="index"] :is(.customer-value-card p, .topic-card p, .membership-promo-card p, .home-data-service p, .home-wechat-copy p, .public-preview-intro, .public-discovery-note, .membership-promo-header p) { font-size: 15px; line-height: 1.8; color: var(--home-text); }
@media (max-width: 760px) {
  body[data-page="index"] main > section { margin-top: 32px; }
  body[data-page="index"] main .home-section-heading { font-size: 20px; }
  body[data-page="index"] main .home-heading-en { font-size: 12px; margin-left: 6px; }
  body[data-page="index"] main .observation-search .home-section-heading { font-size: 18px; }
  body[data-page="index"] .observation-main > h2 { font-size: 22px; }
  body[data-page="index"] main :is(h3, .observation-event-grid h3, .observation-brief h3) { font-size: 17px; }
  body[data-page="index"] :is(.hot-item > a, .observation-brief h3) { font-size: 15px; }
  body[data-page="index"] .observation-search { padding: 20px; }
  body[data-page="index"] .observation-search form { margin-top: 16px; }
}

/* Two remaining research links fill the row after removing thematic research. */
body[data-page="index"] .observation-tools > div { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media(max-width:620px) { body[data-page="index"] .observation-tools > div { grid-template-columns: minmax(0, 1fr); } }

/* Keep the section underline; first-row stories do not repeat it. */
body[data-page="index"] .observation-event-grid > article:nth-child(-n+3) { border-top: 0; }
@media(max-width:900px) {
  body[data-page="index"] .observation-event-grid > article:nth-child(n+3) { border-top: 1px solid var(--home-line); }
}
@media(max-width:620px) {
  body[data-page="index"] .observation-event-grid > article:nth-child(n+2) { border-top: 1px solid var(--home-line); }
}