.page-about {
  --about-rail: 168px;
  color: var(--ice);
  background:
    radial-gradient(120% 55% at 50% -8%, rgba(255, 90, 31, 0.16), transparent 62%),
    var(--ink-900);
  overflow-x: clip;
}

.page-about .about-crumbs {
  padding-top: 18px;
}

.page-about .about-hero {
  position: relative;
  padding: clamp(26px, 4vw, 48px) 0 clamp(34px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.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: 76px 76px;
  opacity: 0.32;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  gap: 30px;
}

.page-about .about-hero__copy h1 {
  margin: 14px 0 20px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(34px, 8vw, 76px);
  line-height: 1.05;
  letter-spacing: 0.01em;
}

.page-about .about-hero__lede {
  margin: 0 0 14px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-hero__lede--sub {
  padding-left: 16px;
  border-left: 2px solid var(--orange);
  color: var(--ice);
}

.page-about .status-panel {
  padding: 4px 0 4px 18px;
  border-left: 3px solid var(--orange);
  border-radius: 0;
}

.page-about .status-panel__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .status-panel__row:last-child {
  border-bottom: 0;
}

.page-about .status-panel__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-about .status-panel__val {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 19px;
  font-weight: 700;
  color: var(--lime);
  white-space: nowrap;
}

.page-about .status-panel__val--orange {
  color: var(--orange-soft);
}

.page-about .ab-block {
  padding: clamp(42px, 6vw, 84px) 0;
  border-bottom: 1px solid var(--line);
}

.page-about .section-head {
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-about .ab-head-lede {
  max-width: 34ch;
  font-size: 15px;
}

.page-about .ab-split {
  display: grid;
  gap: 28px;
}

.page-about .ab-split__media {
  margin: 0;
}

.page-about .ab-split__text .section-title {
  margin: 12px 0 18px;
}

.page-about .ab-split__text .section-lede {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
}

.page-about .ab-facts {
  list-style: none;
  margin: 22px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 12px;
}

.page-about .ab-facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-about .ab-facts__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  font-weight: 700;
  color: var(--orange-soft);
  min-width: 62px;
}

.page-about .ab-facts__txt {
  font-size: 14px;
  color: var(--mist);
  line-height: 1.6;
}

.page-about .principle-grid {
  display: grid;
  gap: 16px;
}

.page-about .principle {
  position: relative;
  padding: 22px 20px 20px;
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-top: 3px solid var(--orange);
}

.page-about .principle__idx {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-about .principle__title {
  margin: 10px 0 10px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 26px;
  line-height: 1.15;
  color: var(--ice);
}

.page-about .principle__body {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .principle__out {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-about .practice-grid {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .practice {
  padding: 18px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  transition: background 120ms var(--ease), border-color 120ms var(--ease);
}

.page-about .practice:hover {
  background: var(--ink-700);
  border-left-color: var(--orange);
}

.page-about .practice__title {
  margin: 12px 0 8px;
  font-size: 17px;
  font-weight: 500;
  color: var(--ice);
}

.page-about .practice__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .cert-list {
  margin: 20px 0 0;
  border-top: 1px solid var(--line);
}

.page-about .cert-list__item {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .cert-list dt {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--lime);
  margin-bottom: 6px;
}

.page-about .cert-list dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .ab-note {
  margin: 18px 0 0;
  padding: 14px 16px;
  background: var(--glass);
  border-left: 2px solid var(--grass);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ice);
}

.page-about .timeline {
  display: grid;
  gap: 10px;
}

.page-about .timeline__rail {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

.page-about .timeline__year {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-decoration: none;
  padding: 6px 12px;
  border: 1px solid var(--line);
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

.page-about .timeline__year:hover,
.page-about .timeline__year:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

.page-about .timeline__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .tl-card {
  position: relative;
  padding: 20px 18px 20px 22px;
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-about .tl-card::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 22px;
  width: 3px;
  height: 26px;
  background: var(--orange);
}

.page-about .tl-card__year {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(30px, 6vw, 44px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--orange-soft);
}

.page-about .tl-card__title {
  margin: 12px 0 8px;
  font-size: 18px;
  font-weight: 500;
  color: var(--ice);
}

.page-about .tl-card__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

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

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

.page-about .cover-map {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-about .coverage__legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-about .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border-radius: 50%;
  vertical-align: middle;
}

.page-about .dot--orange {
  background: var(--orange);
}

.page-about .dot--grass {
  background: var(--grass);
}

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

.page-about .city-group summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--ice);
}

.page-about .city-group summary::-webkit-details-marker {
  display: none;
}

.page-about .city-group summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--orange);
}

.page-about .city-group[open] summary::after {
  content: "−";
}

.page-about .city-group ul {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .partner-grid {
  display: grid;
  gap: 16px;
}

.page-about .partner {
  padding: 20px;
  background: var(--ink-700);
  border: 1px solid var(--line);
}

.page-about .partner__num {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
}

.page-about .partner__title {
  margin: 10px 0 10px;
  font-size: 16px;
  font-weight: 500;
  color: var(--ice);
  letter-spacing: 0.02em;
}

.page-about .partner__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .ab-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0 0;
}

.page-about .record-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  align-self: start;
}

.page-about .record-list__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .record-list__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-about .record-list__val {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  font-weight: 700;
  color: var(--ice);
  text-align: right;
}

.page-about .ab-block--cta {
  border-bottom: 0;
  background:
    linear-gradient(90deg, rgba(255, 90, 31, 0.18), rgba(255, 90, 31, 0) 62%),
    var(--ink-800);
  border-top: 2px solid var(--orange);
}

.page-about .cta-band {
  display: grid;
  gap: 22px;
  align-items: center;
}

.page-about .cta-band .section-title {
  margin: 10px 0 14px;
}

.page-about .cta-band .section-lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
}

.page-about .cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

@media (min-width: 720px) {
  .page-about .ab-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .ab-facts li {
    display: block;
  }

  .page-about .ab-facts__num {
    display: block;
    margin-bottom: 4px;
  }

  .page-about .practice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .principle-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 940px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    align-items: end;
    gap: 48px;
  }

  .page-about .ab-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
    align-items: center;
  }

  .page-about .ab-split--reverse .ab-split__media {
    order: -1;
  }

  .page-about .principle-grid {
    gap: 22px;
    padding-bottom: 56px;
  }

  .page-about .principle:nth-child(2) {
    transform: translateY(28px);
  }

  .page-about .principle:nth-child(3) {
    transform: translateY(56px);
  }

  .page-about .timeline {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 0 40px;
    align-items: start;
  }

  .page-about .timeline__rail {
    position: sticky;
    top: 96px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow: visible;
    padding: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-about .timeline__year {
    border: 0;
    border-left: 2px solid transparent;
    padding: 12px 0 12px 16px;
    font-size: 22px;
    font-weight: 700;
  }

  .page-about .timeline__year:hover,
  .page-about .timeline__year:focus-visible {
    border-left-color: var(--orange);
    color: var(--orange);
  }

  .page-about .timeline__list {
    margin-top: 0;
    gap: 22px;
  }

  .page-about .tl-card {
    padding: 26px 26px 26px 28px;
  }

  .page-about .coverage {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .cta-band {
    grid-template-columns: minmax(0, 1.4fr) auto;
    gap: 40px;
  }

  .page-about .cta-band__actions {
    justify-content: flex-end;
  }

  .page-about .record-list {
    align-self: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .principle,
  .page-about .practice,
  .page-about .timeline__year {
    transition: none;
  }

  .page-about .principle:nth-child(2),
  .page-about .principle:nth-child(3) {
    transform: none;
  }

  .page-about .principle-grid {
    padding-bottom: 0;
  }
}
<<<END>>>