.page-about {
  --about-body: #c9d8df;
  --about-dim: #9fb4be;
  color: var(--fog);
  background: var(--ink-900);
  overflow-wrap: break-word;
}

.page-about .breadcrumb {
  margin-top: 18px;
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 0;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.16;
  pointer-events: none;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: end;
  padding-bottom: 48px;
}

.page-about .about-hero__copy {
  max-width: 720px;
}

.page-about .about-hero__copy .eyebrow {
  margin: 0 0 14px;
}

.page-about .about-hero h1 {
  max-width: 15em;
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-size: clamp(40px, 8vw, 76px);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-about .about-hero__lede {
  max-width: 46ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.8;
  color: var(--about-body);
}

.page-about .hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
}

.page-about .hero-fact {
  min-width: 0;
}

.page-about .hero-fact__label {
  display: block;
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--about-dim);
}

.page-about .hero-fact__value {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(24px, 4vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--fog);
}

.page-about .about-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid rgba(53, 230, 255, 0.5);
  background: var(--panel);
  box-shadow: var(--glow-cyan);
}

.page-about .about-hero__media img,
.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-hero__media img {
  aspect-ratio: 16 / 10;
}

.page-about .about-hero__media figcaption,
.page-about .about-figure figcaption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--ink-990);
  color: var(--about-dim);
  font-size: 12px;
  line-height: 1.5;
}

.page-about .about-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-top: 20px;
  padding-bottom: 84px;
}

.page-about .about-index {
  min-width: 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-about .about-index__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-about .about-index__head .mono {
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about .about-index .copy-btn {
  flex-shrink: 0;
  font-size: 12px;
}

.page-about .about-index__list {
  display: flex;
  gap: 16px;
  margin: 14px 0 0;
  padding: 0 0 12px;
  overflow-x: auto;
  list-style: none;
  scrollbar-width: thin;
}

.page-about .about-index__list li {
  flex: 0 0 auto;
}

.page-about .about-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 0;
  color: var(--about-dim);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms var(--ease);
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--cyan);
}

.page-about .about-index__code {
  color: var(--amber);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.page-about .about-narrative {
  min-width: 0;
}

.page-about .chapter {
  padding-bottom: 44px;
  margin-bottom: 44px;
  border-bottom: 1px solid var(--line);
}

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

.page-about .chapter__head {
  margin-bottom: 18px;
}

.page-about .chapter__code {
  display: block;
  margin-bottom: 8px;
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about .chapter h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(30px, 5vw, 42px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-about .about-narrative p {
  max-width: 720px;
  margin: 0 0 16px;
  color: var(--about-body);
  font-size: 16.5px;
  line-height: 1.85;
}

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

.page-about .about-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-about .about-link:hover,
.page-about .about-link:focus-visible {
  color: var(--fog);
}

.page-about .gate-list {
  margin: 24px 0;
  padding: 0;
  list-style: none;
  counter-reset: gate;
}

.page-about .gate-item {
  position: relative;
  padding: 18px 0 18px 50px;
  border-top: 1px solid var(--line);
  counter-increment: gate;
}

.page-about .gate-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-about .gate-item::before {
  content: "0" counter(gate);
  position: absolute;
  top: 18px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--amber);
}

.page-about .gate-item h3 {
  margin: 0 0 6px;
  color: var(--fog);
  font-size: 17px;
  line-height: 1.5;
}

.page-about .gate-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-about .about-figure {
  margin: 28px 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-about .team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 24px 0;
}

.page-about .team-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-about .team-card__role {
  display: block;
  margin-bottom: 8px;
  color: var(--amber);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-about .team-card h3 {
  margin: 0 0 8px;
  color: var(--fog);
  font-size: 17px;
  line-height: 1.4;
}

.page-about .team-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
}

.page-about .about-floor {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  margin: 8px 0 24px;
  color: var(--line);
}

.page-about .about-floor__nodes circle {
  fill: var(--amber);
  stroke: var(--ink-900);
  stroke-width: 1;
}

.page-about .timeline {
  position: relative;
  margin: 28px 0 32px;
  padding-left: 28px;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 8px;
  left: 7px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--line) 26%, var(--line) 82%, transparent);
}

.page-about .tl-node {
  position: relative;
  padding: 0 0 28px 16px;
  outline: none;
}

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

.page-about .tl-node::before {
  content: "";
  position: absolute;
  top: 5px;
  left: -25px;
  width: 11px;
  height: 11px;
  border: 1px solid var(--cyan);
  background: var(--ink-900);
  transform: rotate(45deg);
  transition: background 160ms var(--ease), border-color 160ms var(--ease);
}

.page-about .tl-node:hover::before,
.page-about .tl-node:focus-visible::before {
  border-color: var(--amber);
  background: var(--amber);
}

.page-about .tl-node:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 4px;
}

.page-about .tl-node__era {
  display: block;
  margin-bottom: 4px;
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-about .tl-node h3 {
  margin: 0 0 8px;
  color: var(--fog);
  font-size: 19px;
  line-height: 1.4;
}

.page-about .tl-node p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-about .tl-tip {
  display: block;
  margin-top: 10px;
  padding: 8px 10px;
  border-left: 1px solid var(--cyan);
  background: var(--panel);
  color: var(--about-dim);
  font-size: 12px;
  line-height: 1.6;
  transition: background 160ms var(--ease), border-color 160ms var(--ease);
}

.page-about .tl-node:hover .tl-tip,
.page-about .tl-node:focus-within .tl-tip,
.page-about .tl-node:focus-visible .tl-tip {
  border-left-color: var(--amber);
  background: var(--ink-990);
}

.page-about .expand-group {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}

.page-about .expand {
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-about .expand__trigger {
  width: 100%;
  text-align: left;
}

.page-about .expand__panel {
  padding: 0 16px 16px;
}

.page-about .expand__panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
}

.page-about .reach-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 26px;
  padding: 22px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-about .reach-panel p {
  margin: 0;
  color: var(--fog);
  font-size: 16px;
  line-height: 1.7;
}

.page-about .reach-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 700px) {
  .page-about .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .reach-panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 920px) {
  .page-about .about-hero {
    padding-top: 36px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
    padding-bottom: 64px;
  }

  .page-about .about-body {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 64px;
    padding-top: 32px;
    padding-bottom: 104px;
  }

  .page-about .about-index {
    position: sticky;
    top: 92px;
    align-self: start;
    padding-top: 0;
    border-top: 0;
  }

  .page-about .about-index__head {
    padding-top: 16px;
    border-top: 1px solid var(--line);
  }

  .page-about .about-index__list {
    display: grid;
    gap: 0;
    margin-top: 16px;
    padding: 0;
    overflow: visible;
  }

  .page-about .about-index__list li {
    flex: initial;
  }

  .page-about .about-index__link {
    padding: 11px 0;
    border-bottom: 1px solid var(--line);
    white-space: normal;
  }

  .page-about .about-index__link:hover,
  .page-about .about-index__link:focus-visible {
    padding-left: 8px;
    border-left: 1px solid var(--cyan);
    transition: padding 160ms var(--ease), border-color 160ms var(--ease), color 160ms var(--ease);
  }

  .page-about .chapter {
    padding-bottom: 52px;
    margin-bottom: 52px;
  }

  .page-about .about-narrative p {
    font-size: 17px;
  }

  .page-about .gate-item {
    padding-left: 64px;
  }

  .page-about .gate-item::before {
    top: 20px;
  }

  .page-about .timeline {
    padding-left: 34px;
  }

  .page-about .tl-node {
    padding-left: 22px;
  }

  .page-about .tl-node::before {
    left: -31px;
  }
}

@media print {
  .page-about .about-index,
  .page-about .copy-btn,
  .page-about .reach-actions {
    display: none;
  }

  .page-about .about-hero::before {
    display: none;
  }

  .page-about .about-body {
    display: block;
  }

  .page-about .about-hero__media,
  .page-about .about-figure,
  .page-about .team-card,
  .page-about .reach-panel,
  .page-about .expand {
    box-shadow: none;
    border-color: #999;
  }
}
<<<END>>>