.page-about {
  --about-text: rgba(244, 241, 232, .78);
  --about-text-dim: rgba(154, 166, 178, .95);
  --about-moss-edge: rgba(122, 154, 106, .45);
  --about-clay-edge: rgba(192, 122, 88, .45);
  background: var(--ink);
  color: var(--cream);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(92px, 13vw, 148px) 0 clamp(36px, 6vw, 60px);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(40, 50, 60, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(40, 50, 60, .55) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: radial-gradient(120% 90% at 20% 0%, #000 0%, transparent 78%);
  mask-image: radial-gradient(120% 90% at 20% 0%, #000 0%, transparent 78%);
  pointer-events: none;
}

.page-about .about-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-about .about-hero-inner {
  display: grid;
  gap: clamp(24px, 5vw, 44px);
}

.page-about .about-lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--about-text);
}

.page-about .about-lede--sm {
  margin-top: 12px;
  font-size: 15px;
  color: var(--about-text-dim);
}

.page-about .about-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.04;
  font-size: clamp(34px, 7.4vw, 64px);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero-frame {
  position: relative;
  padding: 20px;
  border: 1px solid var(--line);
  background:
    linear-gradient(155deg, rgba(55, 230, 212, .08), transparent 58%),
    var(--panel);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

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

.page-about .frame-code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--about-text-dim);
}

.page-about .frame-mid {
  margin: 22px 0 6px;
}

.page-about .frame-big {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-about .frame-bars {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  height: 54px;
  margin: 18px 0 16px;
}

.page-about .frame-bars i {
  flex: 1 1 0;
  height: 30%;
  background: var(--rock);
}

.page-about .frame-bars i:nth-child(1) { height: 38%; background: var(--cyan); opacity: .85; }
.page-about .frame-bars i:nth-child(2) { height: 62%; background: var(--rock); }
.page-about .frame-bars i:nth-child(3) { height: 48%; background: var(--magenta); opacity: .7; }
.page-about .frame-bars i:nth-child(4) { height: 86%; background: var(--rock); }
.page-about .frame-bars i:nth-child(5) { height: 56%; background: var(--amber); opacity: .8; }
.page-about .frame-bars i:nth-child(6) { height: 72%; background: var(--moss); opacity: .7; }
.page-about .frame-bars i:nth-child(7) { height: 44%; background: var(--rock); }

.page-about .frame-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--about-text-dim);
}

.page-about .about-hero-stats {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 5vw, 44px) 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-stat {
  background: var(--panel);
  padding: 16px 14px;
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.1;
  color: var(--cyan);
}

.page-about .about-stat-num--amber {
  color: var(--amber);
}

.page-about .about-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--about-text-dim);
}

.page-about .about-section {
  position: relative;
  padding: clamp(46px, 8vw, 86px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-section--tint {
  background: linear-gradient(180deg, rgba(18, 26, 35, .85), rgba(7, 11, 16, 0));
}

.page-about .about-grid {
  display: grid;
  gap: clamp(18px, 4vw, 34px);
}

.page-about .about-rail {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-about .about-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-rail-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--about-text-dim);
}

.page-about .about-body h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.12;
  font-size: clamp(26px, 4.4vw, 40px);
}

.page-about .about-body p {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: clamp(15px, 1.4vw, 16px);
  line-height: 1.85;
  color: var(--about-text);
}

.page-about .about-lead {
  color: rgba(244, 241, 232, .88);
}

.page-about .about-media {
  margin: 26px 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

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

.page-about .about-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-about .about-points li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-text);
}

.page-about .about-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .95em;
  width: 12px;
  height: 2px;
  background: var(--cyan);
}

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

.page-about .about-flow li + li {
  margin-top: 10px;
}

.page-about .flow-step {
  border-left: 2px solid var(--rock);
  padding: 4px 0 4px 18px;
  transition: border-color .2s var(--ease);
}

.page-about .flow-step[open] {
  border-left-color: var(--cyan);
}

.page-about .flow-step summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 22px);
  color: var(--cream);
}

.page-about .flow-step summary::-webkit-details-marker {
  display: none;
}

.page-about .flow-step summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-about .flow-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-about .flow-step p {
  margin: 10px 0 8px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-text);
  max-width: 66ch;
}

.page-about .about-history {
  display: grid;
  gap: 20px;
  margin-top: 8px;
}

.page-about .year-index {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-about .year-index a {
  display: block;
  padding: 6px 12px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--about-text-dim);
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-about .year-index a:hover,
.page-about .year-index a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan-edge);
}

.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .phase {
  position: relative;
  padding: 0 0 24px 22px;
  border-left: 1px solid var(--line);
}

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

.page-about .phase::before {
  content: "";
  position: absolute;
  left: -5px;
  top: .5em;
  width: 9px;
  height: 9px;
  background: var(--ink);
  border: 1px solid var(--cyan-edge);
  transform: rotate(45deg);
}

.page-about .phase:target {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, var(--cyan-dim), transparent 62%);
}

.page-about .phase-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-about .phase h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 24px);
  line-height: 1.2;
  color: var(--cream);
}

.page-about .phase p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-text);
}

.page-about .about-topics {
  display: grid;
  gap: 14px;
  margin: 22px 0 18px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .topic-card {
  position: relative;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-top-width: 2px;
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-about .topic-card--cyan { border-top-color: var(--cyan); }
.page-about .topic-card--magenta { border-top-color: var(--magenta); }
.page-about .topic-card--moss { border-top-color: var(--moss); }
.page-about .topic-card--clay { border-top-color: var(--clay); }

.page-about .topic-code {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--about-text-dim);
}

.page-about .topic-card h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 24px);
  color: var(--cream);
}

.page-about .topic-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--about-text);
}

.page-about .about-network {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: 24px 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .net-node {
  position: relative;
  background: var(--panel);
  padding: 18px 18px 18px 28px;
  transition: background .2s var(--ease);
}

.page-about .net-node::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 24px;
  width: 6px;
  height: 6px;
  background: var(--moss);
}

.page-about .net-node:hover {
  background: var(--panel-2);
}

.page-about .net-node-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 30px);
  line-height: 1.1;
  color: var(--amber);
}

.page-about .net-node-label {
  display: block;
  margin-top: 4px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: .01em;
  color: var(--cream);
}

.page-about .net-node-desc {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-text-dim);
}

.page-about .about-facts {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
  margin: 22px 0;
}

.page-about .fact {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--clay);
  background: rgba(14, 20, 27, .7);
}

.page-about .fact-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.4vw, 28px);
  line-height: 1.1;
  color: var(--cream);
}

.page-about .fact-label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-text-dim);
}

.page-about .about-cta {
  border-bottom: none;
  padding-bottom: clamp(56px, 9vw, 96px);
}

.page-about .about-cta h2 {
  margin: 12px 0 26px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.4vw, 40px);
  line-height: 1.12;
}

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

.page-about .next-card {
  display: block;
  position: relative;
  padding: 22px 20px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--cream);
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-about .next-card:hover,
.page-about .next-card:focus-visible {
  border-color: var(--cyan-edge);
  transform: translateY(-2px);
}

.page-about .next-code {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
}

.page-about .next-card h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  color: var(--cream);
}

.page-about .next-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--about-text);
}

@media (min-width: 640px) {
  .page-about .about-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

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

@media (min-width: 900px) {
  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: end;
  }

  .page-about .about-grid {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: clamp(30px, 4vw, 56px);
  }

  .page-about .about-rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    position: sticky;
    top: 104px;
  }

  .page-about .about-history {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 28px;
  }

  .page-about .year-index {
    flex-direction: column;
    overflow: visible;
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-about .year-index a {
    text-align: left;
  }

  .page-about .about-media {
    margin: 30px 0;
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero-frame {
    padding: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .flow-step,
  .page-about .net-node,
  .page-about .next-card,
  .page-about .year-index a {
    transition: none;
  }

  .page-about .next-card:hover,
  .page-about .next-card:focus-visible {
    transform: none;
  }
}
<<<END>>>