/* One footer for the homepage, archives, profiles, and research articles. */
.site-footer {
  padding: 56px 0 28px;
  border-top: 1px solid var(--line);
  background: var(--paper-100);
  color: var(--ink-950);
  font: 400 13px/1.6 var(--font-interface);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 64px;
}
.site-footer h4 {
  max-width: 320px;
  margin: 0 0 18px;
  font: 400 22px/1.4 var(--font-interface);
  letter-spacing: -.025em;
}
.site-footer h5 {
  margin: 0 0 20px;
  color: var(--ink-950);
  font: 500 14px/1.5 var(--font-interface);
}
.site-footer p { margin: 0 0 10px; color: var(--ink-700); }
.site-footer .footer-col-brand__description { margin-top: 10px; }
.footer-links-list { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.footer-links-list a { color: var(--ink-700); }
.footer-links-list a:hover { color: var(--ink-950); }
.footer-col-contact__details { display: flex; flex-direction: column; gap: 8px; color: var(--ink-700); }
.footer-col-contact__details a { color: var(--blue-600); overflow-wrap: anywhere; }
.footer-col-contact__details a:hover { color: var(--blue-700); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--ink-700);
  font-size: 12px;
}
html[lang^="zh"] .site-footer h4 { letter-spacing: 0; }
@media (max-width: 980px) {
  .site-footer__grid { gap: 36px; }
}
@media (max-width: 760px) {
  .site-footer__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 36px 24px; }
  .footer-col-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: 12px; margin-top: 36px; }
}