.about-page,
html {
  scroll-behavior: smooth;
}

.about-page {
  --about-max: 1260px;
  min-width: 980px;
  overflow-x: auto;
  overflow-y: auto;
  background: #f4f4f2;
  color: #171717;
  font-family: Arial, "Helvetica Neue", "Microsoft YaHei", sans-serif;
}

.about-page main {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
}

.about-nav {
  position: sticky;
  z-index: 20;
  top: 0;
  min-height: 74px;
  padding: 0 max(34px, calc((100vw - var(--about-max)) / 2));
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 34px;
  border-bottom: 1px solid #d3d3cf;
  background: rgba(244, 244, 242, .94);
  color: #171717;
  box-shadow: none;
  backdrop-filter: blur(16px);
}

.about-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  color: inherit;
  text-decoration: none;
}

.about-brand img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.about-brand span,
.about-brand b,
.about-brand small {
  display: block;
}

.about-brand b {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px;
  line-height: 1;
}

.about-brand b i {
  color: #b5121b;
  font-style: normal;
}

.about-brand small {
  margin-top: 4px;
  color: #777772;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.about-nav nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.about-nav nav a,
.about-footer a {
  color: #5f5f5a;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  transition: color .18s ease;
}

.about-nav nav a:hover,
.about-footer a:hover {
  color: #b5121b;
}

.about-nav-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
}

.about-page .theme-toggle {
  position: static;
  min-width: 64px;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid #c9c9c5;
  border-radius: 4px;
  background: transparent;
  color: #555550;
  font: 700 11px/1 Arial, sans-serif;
  box-shadow: none;
}

.about-open,
.about-primary {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 17px;
  border: 1px solid #171717;
  border-radius: 4px;
  background: #171717;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease;
}

.about-open:hover,
.about-primary:hover {
  border-color: #b5121b;
  background: #b5121b;
  transform: translateY(-2px);
}

.about-hero {
  position: relative;
  min-height: calc(100vh - 74px);
  overflow: hidden;
  border-bottom: 1px solid #cfcfca;
  background:
    linear-gradient(110deg, rgba(255,255,255,.96) 0%, rgba(255,255,255,.9) 47%, rgba(227,227,223,.68) 100%),
    #f4f4f2;
  scroll-margin-top: 74px;
}

.about-hero-inner {
  position: relative;
  width: min(var(--about-max), calc(100% - 68px));
  min-height: calc(100vh - 180px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(520px, 1.08fr) minmax(380px, .92fr);
  align-items: center;
}

.about-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 690px;
  padding: 70px 0 80px;
  animation: about-copy-in .7s ease-out both;
}

.about-kicker {
  color: #b5121b;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.about-hero h1 {
  margin-top: 18px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 88px;
  line-height: .9;
  letter-spacing: 0;
}

.about-hero h1 span {
  color: #b5121b;
}

.about-deck {
  max-width: 680px;
  margin-top: 34px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 31px;
  line-height: 1.22;
}

.about-intro {
  max-width: 615px;
  margin-top: 26px;
  color: #5d5d58;
  font-size: 15px;
  line-height: 1.75;
}

.about-hero-links {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 34px;
}

.about-secondary {
  padding: 10px 0;
  border-bottom: 1px solid #999994;
  color: #343430;
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
  transition: color .18s ease, border-color .18s ease;
}

.about-secondary:hover {
  border-color: #b5121b;
  color: #b5121b;
}

.about-hero-visual {
  position: relative;
  align-self: stretch;
  min-height: 620px;
}

.about-hero-visual::before,
.about-hero-visual::after {
  content: "";
  position: absolute;
  top: 10%;
  bottom: 10%;
  width: 1px;
  background: #cfcfca;
}

.about-hero-visual::before { left: 18%; }
.about-hero-visual::after { right: 10%; }

.about-hero-visual img {
  position: absolute;
  top: -14%;
  right: 5%;
  width: min(450px, 38vw);
  height: 150%;
  object-fit: contain;
  filter: grayscale(1) contrast(.95) brightness(1.05);
  opacity: .52;
  transform-origin: center;
  animation: about-gene-drift 9s ease-in-out infinite alternate;
}

.about-visual-label {
  position: absolute;
  z-index: 2;
  padding: 4px 7px;
  border-left: 2px solid #b5121b;
  background: rgba(244,244,242,.86);
  color: #666660;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .12em;
  animation: about-label-in .6s ease-out both;
}

.about-visual-label::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 100%;
  width: 72px;
  height: 1px;
  background: rgba(181,18,27,.45);
  transform-origin: left center;
  animation: about-line-pulse 3.6s ease-in-out infinite;
}

.label-a { top: 25%; left: 2%; animation-delay: .14s; }
.label-b { top: 48%; left: 13%; animation-delay: .24s; }
.label-c { top: 72%; left: 6%; animation-delay: .34s; }

.about-metrics {
  position: relative;
  z-index: 3;
  width: min(var(--about-max), calc(100% - 68px));
  min-height: 106px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid #cfcfca;
}

.about-metrics div {
  padding: 24px 28px;
  border-right: 1px solid #cfcfca;
}

.about-metrics div:first-child { padding-left: 0; }
.about-metrics div:last-child { border-right: 0; }

.about-metrics strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 29px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.about-metrics span {
  display: block;
  margin-top: 5px;
  color: #74746f;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.about-band {
  width: min(var(--about-max), calc(100% - 68px));
  margin: 0 auto;
  padding: 104px 0;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 54px;
  border-bottom: 1px solid #cfcfca;
}

.about-section-label {
  padding-top: 9px;
  color: #8a8a84;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.about-section-content h2,
.about-closing h2 {
  max-width: 820px;
  margin-top: 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 43px;
  font-weight: 500;
  line-height: 1.12;
}

.about-two-column {
  margin-top: 46px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 52px;
}

.about-two-column p {
  color: #595954;
  font-size: 15px;
  line-height: 1.8;
}

.about-platform {
  width: 100%;
  max-width: none;
  padding-right: max(34px, calc((100vw - var(--about-max)) / 2));
  padding-left: max(34px, calc((100vw - var(--about-max)) / 2));
  background: #1b1b1a;
  color: #f5f5f2;
  scroll-margin-top: 74px;
}

.about-platform .about-section-label,
.about-platform .about-kicker { color: #d85a60; }

.about-capabilities {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 54px;
  border-top: 1px solid #454541;
  border-left: 1px solid #454541;
}

.about-capabilities article {
  min-height: 220px;
  padding: 28px 30px;
  border-right: 1px solid #454541;
  border-bottom: 1px solid #454541;
  transition: background-color .22s ease, transform .22s ease;
}

.about-capabilities article:hover {
  background: #252523;
  transform: translateY(-3px);
}

.about-capabilities article > span {
  color: #d85a60;
  font-family: Georgia, serif;
  font-size: 13px;
}

.about-capabilities h3 {
  margin-top: 44px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 26px;
  font-weight: 500;
}

.about-capabilities h3 a {
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  text-decoration: none;
}
.about-capabilities h3 a:hover { color: #b5121b; }
.about-capabilities h3 a:focus-visible { outline: 2px solid #b5121b; outline-offset: 5px; }

.about-capabilities p {
  max-width: 390px;
  margin-top: 12px;
  color: #b8b8b1;
  font-size: 13px;
  line-height: 1.7;
}

.about-research-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 34px;
}

.about-research {
  scroll-margin-top: 74px;
}

.about-preprint-note {
  max-width: 250px;
  padding-bottom: 6px;
  color: #777772;
  font-size: 10px;
  line-height: 1.5;
}

.about-publication {
  margin-top: 48px;
  padding: 32px 0;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  gap: 28px;
  align-items: start;
  border-top: 1px solid #bdbdb8;
  border-bottom: 1px solid #bdbdb8;
  transition: padding-left .22s ease, border-color .22s ease;
}

.about-publication:hover {
  padding-left: 12px;
  border-color: #b5121b;
}

.about-publication-index {
  color: #b5121b;
  font: 18px Georgia, serif;
}

.about-publication-type,
.about-citation {
  color: #777772;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.about-publication h3 {
  max-width: 760px;
  margin-top: 12px;
  font: 500 27px/1.24 Georgia, "Times New Roman", serif;
}

.about-publication h3 a {
  color: inherit;
  text-decoration: none;
}

.about-publication h3 a:hover { color: #b5121b; }

.about-authors {
  margin-top: 18px;
  color: #333330;
  font-size: 13px;
}

.about-citation { margin-top: 8px; }

.about-publication-link {
  padding: 10px 0;
  border-bottom: 1px solid #999994;
  color: #343430;
  font-size: 11px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s ease, border-color .18s ease;
}

.about-publication-link:hover {
  border-color: #b5121b;
  color: #b5121b;
}

.about-citation-guidance {
  max-width: 850px;
  margin-top: 28px;
  color: #666660;
  font-size: 12px;
  line-height: 1.7;
}

.about-closing {
  width: min(var(--about-max), calc(100% - 68px));
  min-height: 300px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 70px;
}

.about-closing h2 { max-width: 760px; }
.about-closing .about-primary { flex: 0 0 auto; }

.about-footer {
  min-height: 116px;
  padding: 30px max(34px, calc((100vw - var(--about-max)) / 2));
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
  border-top: 1px solid #383835;
  background: #171716;
  color: #f2f2ef;
}

.about-footer .about-brand small { color: #8e8e88; }
.about-footer .about-brand img { filter: invert(1) grayscale(1) contrast(1.2); }
.about-footer p { color: #8e8e88; font-size: 11px; }
.about-footer > div { display: flex; justify-content: flex-end; gap: 24px; }
.about-footer a { color: #bdbdb7; }

html[data-theme="dark"] .about-page {
  background: #161615;
  color: #ecece8;
}

html[data-theme="dark"] .about-nav {
  border-color: #383835;
  background: rgba(22,22,21,.94);
  color: #ecece8;
}

html[data-theme="dark"] .about-brand img {
  filter: invert(1) grayscale(1) contrast(1.15);
}

html[data-theme="dark"] .about-brand small,
html[data-theme="dark"] .about-nav nav a,
html[data-theme="dark"] .about-intro,
html[data-theme="dark"] .about-two-column p,
html[data-theme="dark"] .about-preprint-note,
html[data-theme="dark"] .about-citation-guidance,
html[data-theme="dark"] .about-publication-type,
html[data-theme="dark"] .about-citation {
  color: #a4a49e;
}

html[data-theme="dark"] .about-page .theme-toggle {
  border-color: #494945;
  background: transparent;
  color: #c7c7c1;
}

html[data-theme="dark"] .about-open,
html[data-theme="dark"] .about-primary {
  border-color: #ecece8;
  background: #ecece8;
  color: #171716;
}

html[data-theme="dark"] .about-open:hover,
html[data-theme="dark"] .about-primary:hover {
  border-color: #d44c53;
  background: #d44c53;
  color: #fff;
}

html[data-theme="dark"] .about-hero {
  border-color: #383835;
  background:
    linear-gradient(110deg, rgba(22,22,21,.98) 0%, rgba(22,22,21,.94) 47%, rgba(44,44,41,.74) 100%),
    #161615;
}

html[data-theme="dark"] .about-hero-visual::before,
html[data-theme="dark"] .about-hero-visual::after,
html[data-theme="dark"] .about-metrics,
html[data-theme="dark"] .about-metrics div,
html[data-theme="dark"] .about-band,
html[data-theme="dark"] .about-publication {
  border-color: #444440;
}

html[data-theme="dark"] .about-hero-visual img {
  filter: grayscale(1) contrast(.9) brightness(.7);
  opacity: .38;
}

html[data-theme="dark"] .about-visual-label {
  background: rgba(22,22,21,.86);
  color: #aaa9a3;
}

html[data-theme="dark"] .about-metrics span,
html[data-theme="dark"] .about-section-label { color: #8e8e88; }
html[data-theme="dark"] .about-secondary,
html[data-theme="dark"] .about-publication-link,
html[data-theme="dark"] .about-publication h3 a,
html[data-theme="dark"] .about-authors { color: #deded8; }
html[data-theme="dark"] .about-platform { background: #20201e; }

@keyframes about-copy-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes about-gene-drift {
  from { transform: translate3d(0, -1.2%, 0) rotate(-.35deg); }
  to { transform: translate3d(-8px, 1.2%, 0) rotate(.35deg); }
}

@keyframes about-label-in {
  from { opacity: 0; transform: translateX(-12px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes about-line-pulse {
  0%, 100% { opacity: .45; transform: scaleX(.72); }
  50% { opacity: 1; transform: scaleX(1); }
}

@media (max-width: 1100px) {
  .about-nav,
  .about-footer { padding-right: 28px; padding-left: 28px; }
  .about-hero-inner,
  .about-metrics,
  .about-band,
  .about-closing { width: calc(100% - 56px); }
  .about-platform { width: 100%; padding-right: 28px; padding-left: 28px; }
  .about-hero h1 { font-size: 76px; }
  .about-deck { font-size: 27px; }
  .about-band { grid-template-columns: 145px minmax(0, 1fr); gap: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  html,
  .about-page { scroll-behavior: auto; }
  .about-hero-copy,
  .about-hero-visual img,
  .about-visual-label,
  .about-visual-label::after { animation: none; }
  .about-open,
  .about-primary,
  .about-capabilities article,
  .about-publication { transition: none; }
}