.page-about {
  --about-rail-w: 176px;
  --about-gap-lg: 56px;
  padding-bottom: 68px;
  background:
    radial-gradient(118% 58% at 84% -6%, rgba(233, 180, 76, .14), transparent 62%),
    radial-gradient(86% 52% at 2% 4%, rgba(108, 91, 240, .16), transparent 64%);
}

.page-about .about-hero {
  padding: 18px 0 6px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 18px;
}

.page-about .about-hero__lead h1 {
  margin: 10px 0 14px;
  font-size: clamp(1.75rem, 6.4vw, 3.05rem);
  line-height: 1.16;
  letter-spacing: -.01em;
  font-weight: 900;
  color: var(--mist);
}

.page-about .about-hero__lede {
  max-width: 40em;
  font-size: var(--fs-base);
  line-height: 1.8;
  color: rgba(232, 234, 242, .78);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-about .about-hero__panel {
  align-self: start;
  padding: 20px 18px;
  border-left: 3px solid var(--gold);
}

.page-about .about-hero__panel-title {
  margin: 6px 0 10px;
  font-size: var(--fs-md);
  font-weight: 800;
  color: var(--mist);
}

.page-about .about-hero__panel .card__body {
  margin: 0 0 12px;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: rgba(232, 234, 242, .74);
}

.page-about .about-hero__panel .card__foot {
  font-size: var(--fs-xs);
  color: var(--muted);
  font-family: var(--font-mono);
}

.page-about .about-stats {
  margin: 26px 0 10px;
  padding: 18px 0;
  border-top: var(--rule);
  border-bottom: var(--rule);
}

.page-about .about-stats__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-stats__item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-left: 12px;
  border-left: 2px solid rgba(233, 180, 76, .38);
}

.page-about .about-stats__num {
  font-family: var(--font-mono);
  font-size: var(--fs-lg);
  font-weight: 600;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
  color: var(--panel);
}

.page-about .about-stats__label {
  font-size: var(--fs-sm);
  color: var(--muted);
}

.page-about .about-body {
  display: grid;
  gap: 28px;
  padding-top: 10px;
}

.page-about .about-rail {
  display: none;
}

.page-about .about-rail__caption {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .about-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-about .about-rail__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 8px 8px 8px 10px;
  border-left: 2px solid transparent;
  font-size: var(--fs-sm);
  color: rgba(232, 234, 242, .68);
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  color: var(--mist);
  border-left-color: var(--gold);
  background: rgba(233, 180, 76, .08);
}

.page-about .about-rail__index {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--gold);
}

.page-about .about-section {
  padding: 32px 0;
  border-top: var(--rule);
}

.page-about .about-flow > .about-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .about-section__head {
  display: flex;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 18px;
}

.page-about .about-section__head h2 {
  margin: 0;
  font-size: clamp(1.25rem, 5vw, 1.95rem);
  line-height: 1.3;
  font-weight: 800;
  color: var(--mist);
}

.page-about .about-section__head .index-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  letter-spacing: .08em;
  color: var(--gold);
}

.page-about .about-section__body p {
  max-width: var(--measure);
  margin: 0 0 14px;
  font-size: var(--fs-base);
  line-height: 1.8;
  color: rgba(232, 234, 242, .76);
}

.page-about .about-section__body p:last-child {
  margin-bottom: 0;
}

.page-about .about-inline-link {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px dashed rgba(233, 180, 76, .55);
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--violet);
  border-bottom-color: var(--violet);
}

.page-about .about-figure {
  margin: 0 0 20px;
}

.page-about .about-figure .media__frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .media__caption {
  margin-top: 8px;
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-coverage {
  display: grid;
  gap: 20px;
  margin-top: 22px;
}

.page-about .about-map {
  margin: 0;
  padding: 12px 12px 10px;
  border: var(--rule-soft);
  border-radius: var(--radius-lg);
  background: rgba(26, 32, 80, .6);
  box-shadow: var(--shadow-1);
}

.page-about .about-map svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-map__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  fill: var(--muted);
}

.page-about .about-map__caption {
  margin: 8px 2px 0;
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-coverage__text h3 {
  margin: 0 0 10px;
  font-size: var(--fs-md);
  font-weight: 800;
  color: var(--gold);
}

.page-about .about-coverage__text p {
  margin: 0 0 12px;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(232, 234, 242, .74);
}

.page-about .about-steps {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-about .about-steps__item {
  padding: 4px 0 4px 14px;
  border-left: 2px solid rgba(233, 180, 76, .35);
}

.page-about .about-steps__num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--gold);
}

.page-about .about-steps__item h3 {
  margin: 6px 0 6px;
  font-size: var(--fs-base);
  font-weight: 800;
  color: var(--mist);
}

.page-about .about-steps__item p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: rgba(232, 234, 242, .68);
}

.page-about .about-shift {
  margin-top: 22px;
  padding: 16px 18px;
  border-left: 3px solid var(--green);
}

.page-about .about-shift__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .12em;
  color: var(--green);
}

.page-about .about-shift__text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: rgba(232, 234, 242, .74);
}

.page-about .about-filter .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
}

.page-about .filter-btn[aria-pressed="true"] {
  border-color: var(--gold);
  color: var(--mist);
  background: rgba(233, 180, 76, .14);
}

.page-about [data-filter-item][hidden] {
  display: none;
}

.page-about .about-versions {
  display: grid;
  gap: 26px;
}

.page-about .timeline {
  position: relative;
  margin: 0;
  padding: 6px 0 6px 26px;
  list-style: none;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(233, 180, 76, .7), rgba(226, 62, 62, .45) 62%, rgba(46, 211, 167, .35));
}

.page-about .tl-item {
  position: relative;
  padding-bottom: 26px;
}

.page-about .tl-item:last-child {
  padding-bottom: 0;
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 3px rgba(233, 180, 76, .14);
}

.page-about .tl-item__year {
  margin: 0;
}

.page-about .tl-item__mark {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  letter-spacing: .12em;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px dashed rgba(233, 180, 76, .5);
}

.page-about .tl-item__mark:hover,
.page-about .tl-item__mark:focus-visible {
  color: var(--violet);
  border-bottom-color: var(--violet);
}

.page-about .tl-item__title {
  margin: 6px 0 8px;
  font-size: var(--fs-md);
  line-height: 1.4;
  font-weight: 800;
  color: var(--mist);
}

.page-about .tl-item__text {
  max-width: 40em;
  margin: 0 0 10px;
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: rgba(232, 234, 242, .72);
}

.page-about .tl-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
}

.page-about .tl-item:target .tl-item__title {
  color: var(--gold);
}

.page-about .tl-item:target::before {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(233, 180, 76, .26);
}

.page-about .about-versions__figure {
  margin: 0;
  align-self: start;
}

.page-about .about-versions__figure .media__frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: var(--rule-soft);
}

.page-about .about-partners {
  margin: 20px 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  border: var(--rule-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(124, 134, 168, .2);
}

.page-about .about-partners__item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: rgba(26, 32, 80, .78);
}

.page-about .about-partners__num {
  font-family: var(--font-mono);
  font-size: var(--fs-lg);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--panel);
}

.page-about .about-partners__label {
  font-size: var(--fs-sm);
  color: rgba(232, 234, 242, .7);
}

.page-about .about-next {
  padding: 34px 0 0;
  border-top: var(--rule);
}

.page-about .about-next h2 {
  margin: 0;
  font-size: var(--fs-lg);
  font-weight: 800;
  color: var(--mist);
}

.page-about .about-next__grid {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.page-about .about-next__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  text-decoration: none;
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}

.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(233, 180, 76, .6);
}

.page-about .about-next__index {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--gold);
}

.page-about .about-next__title {
  font-size: var(--fs-base);
  font-weight: 800;
  color: var(--mist);
}

.page-about .about-next__desc {
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--muted);
}

.page-about .about-notes {
  margin-top: 38px;
  padding: 20px 0 6px;
  border-top: var(--rule-soft);
}

.page-about .about-notes .note {
  max-width: 52em;
  margin: 0 0 7px;
  font-size: var(--fs-xs);
  line-height: 1.65;
  color: var(--muted);
}

@media (min-width: 640px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    align-items: start;
    gap: 28px;
  }

  .page-about .about-stats__row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 22px;
  }

  .page-about .about-partners {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding-top: 30px;
  }

  .page-about .about-stats {
    margin: 34px 0 12px;
  }

  .page-about .about-stats__row {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-about .about-stats__num {
    font-size: var(--fs-xl);
  }

  .page-about .about-coverage {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    align-items: center;
    gap: 30px;
  }

  .page-about .about-versions {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 32px;
  }

  .page-about .about-section {
    padding: 40px 0;
  }
}

@media (min-width: 1024px) {
  .page-about .about-body {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: var(--about-gap-lg);
  }

  .page-about .about-rail {
    display: block;
    position: sticky;
    top: 24px;
    align-self: start;
    padding-top: 6px;
  }

  .page-about .about-hero__lede {
    font-size: var(--fs-md);
    line-height: 1.75;
  }
}

@media (min-width: 1200px) {
  .page-about .about-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-versions__figure {
    position: sticky;
    top: 24px;
  }
}
<<<END>>>