.page-about {
  --about-index: 128px;
  --about-body: 68ch;
  position: relative;
  color: var(--frost);
  background-color: var(--ink-900);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

.page-about::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(0deg, rgba(33, 212, 180, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33, 212, 180, .05) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 62%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, #000 62%, transparent 100%);
}

.page-about > * {
  position: relative;
  z-index: 1;
}

.page-about .about-intro {
  padding-top: clamp(1.5rem, 4vw, 2.75rem);
}

.page-about .about-hero {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
  padding-bottom: clamp(1.5rem, 3vw, 2.25rem);
  border-bottom: var(--edge) solid var(--line);
}

.page-about .about-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 6.4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--frost);
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: var(--about-body);
  font-size: clamp(1rem, 1.7vw, 1.0625rem);
  line-height: 1.8;
  color: var(--steel);
}

.page-about .about-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: var(--edge) solid var(--line);
}

.page-about .about-metric {
  display: grid;
  gap: .3rem;
  padding: 1rem 1.1rem 1.15rem;
  background: var(--ink-800);
}

.page-about .about-metric__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  line-height: 1.1;
  color: var(--matrix);
  font-variant-numeric: tabular-nums;
}

.page-about .about-metric__label {
  font-family: var(--font-label);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-about .about-chapter {
  display: grid;
  gap: 1rem;
  padding-block: clamp(2rem, 5vw, 3.4rem);
  border-top: var(--edge) solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-about .about-chapter:first-child {
  border-top: 0;
}

.page-about .about-chapter__no {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: .85;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
  color: var(--ink-700);
  -webkit-text-stroke: 1px var(--sage);
}

.page-about .about-chapter__body {
  min-width: 0;
  max-width: var(--about-body);
}

.page-about .about-chapter h2 {
  position: relative;
  margin: 0 0 .9rem;
  padding-left: 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--frost);
}

.page-about .about-chapter h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: .18em;
  bottom: .18em;
  width: 0;
  background: var(--matrix);
  transition: width .18s var(--ease);
}

.page-about .about-chapter__body:hover h2::before,
.page-about .about-chapter__body:focus-within h2::before {
  width: 5px;
}

.page-about .about-chapter p {
  margin: 0 0 1rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--steel);
}

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

.page-about .about-chapter strong {
  color: var(--frost);
  font-weight: 600;
}

.page-about .about-list {
  display: grid;
  gap: .55rem;
  margin: 0 0 1.1rem;
  padding: 0;
  list-style: none;
}

.page-about .about-list li {
  position: relative;
  padding-left: 1.3rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--steel);
}

.page-about .about-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: .5rem;
  height: .5rem;
  background: var(--matrix);
}

.page-about .about-figure {
  margin: 0 0 1.4rem;
}

.page-about .about-timeline {
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-era {
  border-bottom: 1px solid var(--line);
}

.page-about .about-era > summary {
  display: grid;
  grid-template-columns: 3.4rem minmax(0, 1fr) 1rem;
  align-items: center;
  gap: .5rem .85rem;
  padding: 1.05rem 0;
  cursor: pointer;
  list-style: none;
}

.page-about .about-era > summary::-webkit-details-marker {
  display: none;
}

.page-about .about-era__year {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .95rem;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

.page-about .about-era__year::before {
  content: "";
  flex: none;
  width: .55rem;
  height: .55rem;
  background: var(--flare);
}

.page-about .about-era__head {
  display: grid;
  gap: .2rem;
  min-width: 0;
}

.page-about .about-era__ver {
  font-family: var(--font-label);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--matrix);
}

.page-about .about-era__title {
  font-size: .9375rem;
  line-height: 1.5;
  color: var(--frost);
}

.page-about .about-era__sign {
  position: relative;
  justify-self: end;
  width: 14px;
  height: 14px;
}

.page-about .about-era__sign::before,
.page-about .about-era__sign::after {
  content: "";
  position: absolute;
  background: var(--steel);
}

.page-about .about-era__sign::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 2px;
}

.page-about .about-era__sign::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
  transition: transform .18s var(--ease);
}

.page-about .about-era[open] .about-era__sign::after {
  transform: scaleY(0);
}

.page-about .about-era[open] .about-era__sign::before {
  background: var(--flare);
}

.page-about .about-era__body {
  padding: 0 0 1.3rem;
}

.page-about .about-era__impact {
  margin: 0;
  padding-left: .9rem;
  border-left: 2px solid var(--flare);
  font-size: .875rem;
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-about .about-idmap {
  margin: 0 0 1.25rem;
  padding: 1rem;
  border: var(--edge) solid var(--line);
  background: var(--ink-800);
}

.page-about .about-idmap svg {
  display: block;
  width: 100%;
  height: auto;
  color: var(--sage);
}

.page-about .about-idmap rect {
  transition: stroke .18s var(--ease), stroke-width .18s var(--ease);
}

.page-about .idmap-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 26px;
  fill: var(--matrix);
}

.page-about .idmap-label {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: .12em;
  fill: var(--steel);
}

.page-about .about-idmap:hover .idmap-node--batch rect,
.page-about .about-idmap:focus-within .idmap-node--batch rect {
  stroke: var(--flare);
  stroke-width: 3;
}

.page-about .about-idmap:hover .idmap-node--tag rect,
.page-about .about-idmap:focus-within .idmap-node--tag rect {
  stroke: var(--matrix);
  stroke-width: 3;
}

.page-about .about-idmap figcaption {
  margin-top: .8rem;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--steel);
}

.page-about .about-chapter__body--media {
  display: grid;
  gap: 1.4rem;
}

.page-about .about-team-figure {
  margin: 0;
}

.page-about .about-services {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0 0 1.1rem;
  background: var(--line);
  border: var(--edge) solid var(--line);
}

.page-about .about-service {
  display: grid;
  gap: .35rem;
  padding: .95rem 1rem 1.05rem;
  background: var(--ink-800);
}

.page-about .about-service__name {
  font-family: var(--font-label);
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--matrix);
}

.page-about .about-service p {
  margin: 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-about .about-closing {
  position: relative;
  margin-top: clamp(2rem, 5vw, 3.5rem);
  border-top: var(--edge) solid var(--flare);
  overflow: hidden;
  background: var(--ink-800);
}

.page-about .about-closing__tex {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .18;
  pointer-events: none;
}

.page-about .about-closing__inner {
  display: grid;
  gap: 1.1rem;
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-about .about-closing h2 {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.8vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--frost);
}

.page-about .about-closing p {
  margin: 0;
  max-width: 56ch;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--steel);
}

.page-about .about-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: .35rem;
}

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

@media (min-width: 640px) {
  .page-about .about-services {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-era__body {
    padding-left: 4.25rem;
  }
}

@media (min-width: 780px) {
  .page-about .about-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-chapter p {
    font-size: 1rem;
  }
}

@media (min-width: 960px) {
  .page-about .about-chapter {
    grid-template-columns: var(--about-index) minmax(0, 1fr);
    gap: clamp(1.5rem, 4vw, 3.5rem);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-about .about-chapter__body--media {
    grid-template-columns: minmax(0, 1fr) minmax(0, 17rem);
    align-items: start;
    max-width: none;
  }
}

@media (min-width: 1200px) {
  .page-about .about-dots {
    display: block;
    position: fixed;
    right: 1.1rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 30;
  }

  .page-about .about-dots ul {
    display: grid;
    gap: .65rem;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .page-about .about-dots li {
    position: relative;
  }

  .page-about .about-dots a {
    position: relative;
    display: block;
    width: 10px;
    height: 10px;
    border: 2px solid var(--sage);
    background: transparent;
    transition: background .16s var(--ease), border-color .16s var(--ease), transform .16s var(--ease);
  }

  .page-about .about-dots a:hover,
  .page-about .about-dots a:focus-visible {
    background: var(--matrix);
    border-color: var(--matrix);
    transform: scale(1.25);
  }

  .page-about .about-dots__label {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    white-space: nowrap;
    padding: .15rem .45rem;
    background: var(--ink-800);
    border: 1px solid var(--line);
    font-family: var(--font-label);
    font-size: .75rem;
    line-height: 1.5;
    letter-spacing: .06em;
    color: var(--frost);
    opacity: 0;
    pointer-events: none;
    transition: opacity .16s var(--ease);
  }

  .page-about .about-dots a:hover .about-dots__label,
  .page-about .about-dots a:focus-visible .about-dots__label {
    opacity: 1;
  }
}
<<<END>>>