.page-about {
  --about-grid: 72px;
  --about-rail: 128px;
  --about-top: 96px;
  background: var(--ink-800);
  color: var(--paper);
  padding-top: var(--header-h);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: clip;
}

.page-about a {
  color: inherit;
}

/* ---------- HERO ---------- */

.page-about .about-hero {
  position: relative;
  padding: clamp(40px, 7vw, 88px) 0 clamp(48px, 7vw, 88px);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: var(--about-grid) var(--about-grid);
  opacity: .3;
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.page-about .about-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 22px;
}

.page-about .about-crumb a {
  color: var(--paper-70);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .24s linear, border-color .24s linear;
}

.page-about .about-crumb a:hover,
.page-about .about-crumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-about .about-crumb__sep {
  color: var(--line);
}

.page-about .about-crumb__now {
  color: var(--cyan);
}

.page-about .about-hero__eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-hero h1 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 74px);
  line-height: 1.1;
  letter-spacing: .04em;
  text-wrap: balance;
}

.page-about .about-hero__lede {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--paper-80);
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(30px, 4vw, 46px) 0 0;
  background: var(--line);
  border: 1px solid var(--line);
  padding: 0;
}

.page-about .about-stats__item {
  background: var(--ink-800);
  padding: 16px 18px 18px;
}

.page-about .about-stats__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 8px;
}

.page-about .about-stats__val {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--font-mono);
  color: var(--paper);
}

.page-about .about-stats__num {
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cyan);
  line-height: 1;
}

.page-about .about-stats__unit {
  font-size: 13px;
  color: var(--paper-70);
}

.page-about .about-hero__media {
  margin: 0;
}

.page-about .about-hero__media .media__frame {
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink-900);
  overflow: hidden;
}

.page-about .about-hero__media .media__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(0, 229, 255, .22), transparent 58%),
    radial-gradient(90% 80% at 100% 100%, rgba(255, 106, 0, .18), transparent 60%);
  pointer-events: none;
}

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

.page-about .media__caption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
  margin-top: 12px;
}

/* ---------- CHAPTER SHELL ---------- */

.page-about .about-chapter {
  padding: clamp(56px, 9vw, 112px) 0;
  border-top: 1px solid var(--line);
}

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

.page-about .about-chapter__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-about .about-chapter__rail {
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-about .about-chapter__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: .06em;
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-chapter__rule {
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan-dim), transparent);
}

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

.page-about .about-chapter__title {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 38px);
  line-height: 1.25;
  letter-spacing: .04em;
  text-wrap: balance;
}

.page-about .about-chapter__lede {
  margin: 0 0 26px;
  max-width: 40em;
  font-size: clamp(15px, 1.5vw, 17px);
  color: var(--cyan);
}

.page-about .about-chapter__body .prose {
  max-width: 42em;
  color: var(--paper-80);
}

.page-about .about-chapter__body .prose p {
  margin: 0 0 1.1em;
}

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

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

.page-about .about-note {
  margin: 26px 0 0;
  max-width: 42em;
  font-size: 14px;
  color: var(--muted);
  border-left: 2px solid var(--line);
  padding-left: 16px;
}

.page-about .about-note .link-arrow {
  color: var(--cyan);
}

/* ---------- AUDIENCE ---------- */

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

.page-about .about-audience__item {
  position: relative;
  background: var(--ink-800);
  padding: 26px 22px 24px 26px;
  border-left: 2px solid var(--cyan);
  transition: background .24s linear, transform .24s linear;
}

.page-about .about-audience__item--personal { border-left-color: var(--cyan); }
.page-about .about-audience__item--team { border-left-color: var(--violet); }
.page-about .about-audience__item--org { border-left-color: var(--orange); }

.page-about .about-audience__item:hover {
  background: var(--ink-700);
  transform: translateY(-2px);
}

.page-about .about-audience__mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
  margin-bottom: 14px;
}

.page-about .about-audience__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: .04em;
}

.page-about .about-audience__text {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--paper-80);
}

.page-about .about-audience__hint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ---------- SYSTEM ---------- */

.page-about .about-system {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  margin-bottom: 34px;
}

.page-about .about-system__media {
  margin: 0;
}

.page-about .about-system__media .media__frame {
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink-900);
  overflow: hidden;
}

.page-about .about-system__media .media__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(100% 80% at 50% 0%, rgba(124, 77, 255, .22), transparent 62%),
    radial-gradient(90% 70% at 100% 100%, rgba(0, 229, 255, .16), transparent 60%);
  pointer-events: none;
}

.page-about .about-system__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  align-content: start;
}

.page-about .about-fact {
  background: var(--ink-800);
  padding: 24px 22px;
}

.page-about .about-fact__value {
  margin: 0 0 10px;
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-mono);
}

.page-about .about-fact__num {
  font-size: clamp(30px, 4.4vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-about .about-fact__unit {
  font-size: 13px;
  color: var(--paper-70);
}

.page-about .about-fact__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: .04em;
}

.page-about .about-fact__text {
  margin: 0;
  font-size: 14px;
  color: var(--paper-80);
}

.page-about .about-system__foot {
  max-width: 42em;
  margin: 0;
  font-size: 14px;
  color: var(--paper-70);
}

/* ---------- FLOW ---------- */

.page-about .about-flow {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-flow__step {
  padding: 22px 0 22px 20px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid var(--line);
  transition: border-left-color .24s linear, background .24s linear;
}

.page-about .about-flow__step:hover {
  border-left-color: var(--cyan);
  background: rgba(0, 229, 255, .04);
}

.page-about .about-flow__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-about .about-flow__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: .04em;
}

.page-about .about-flow__text {
  margin: 0;
  max-width: 40em;
  font-size: 14px;
  color: var(--paper-70);
}

/* ---------- TIERS ---------- */

.page-about .about-tiers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-tiers__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "badge main"
    "meter meter";
  gap: 6px 16px;
  padding: 20px 20px 18px;
  background: var(--ink-900);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  transition: transform .24s linear, border-color .24s linear;
}

.page-about .about-tiers__item:nth-child(1) { border-left-color: var(--cyan); }
.page-about .about-tiers__item:nth-child(2) { border-left-color: var(--violet); }
.page-about .about-tiers__item:nth-child(3) { border-left-color: var(--orange); }
.page-about .about-tiers__item:nth-child(4) { border-left-color: var(--lime); }

.page-about .about-tiers__item:hover {
  transform: translateY(-2px);
}

.page-about .about-tiers__badge {
  grid-area: badge;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
  padding-top: 4px;
}

.page-about .about-tiers__main {
  grid-area: main;
  min-width: 0;
}

.page-about .about-tiers__name {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: .04em;
}

.page-about .about-tiers__desc {
  margin: 0;
  font-size: 14px;
  color: var(--paper-80);
}

.page-about .about-tiers__meter {
  grid-area: meter;
  display: block;
  height: 3px;
  margin-top: 12px;
  background: var(--line);
  overflow: hidden;
}

.page-about .about-tiers__fill {
  display: block;
  height: 100%;
  background: var(--cyan);
}

.page-about .about-tiers__item:nth-child(1) .about-tiers__fill { width: 25%; background: var(--cyan); }
.page-about .about-tiers__item:nth-child(2) .about-tiers__fill { width: 50%; background: var(--violet); }
.page-about .about-tiers__item:nth-child(3) .about-tiers__fill { width: 75%; background: var(--orange); }
.page-about .about-tiers__item:nth-child(4) .about-tiers__fill { width: 100%; background: var(--lime); }

.page-about .about-spotlight {
  margin-top: 26px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  background: linear-gradient(90deg, rgba(255, 106, 0, .08), transparent 72%);
}

.page-about .about-spotlight__text {
  margin: 0;
  max-width: 42em;
  font-size: 14px;
  color: var(--paper-80);
}

/* ---------- DIFF ---------- */

.page-about .about-diff {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 30px);
}

.page-about .about-diff__item {
  position: relative;
  padding-top: 20px;
  border-top: 2px solid var(--cyan);
}

.page-about .about-diff__item:nth-child(2) { border-top-color: var(--violet); }
.page-about .about-diff__item:nth-child(3) { border-top-color: var(--orange); }

.page-about .about-diff__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: .04em;
}

.page-about .about-diff__text {
  margin: 0;
  font-size: 14px;
  color: var(--paper-80);
}

/* ---------- LOCAL ---------- */

.page-about .about-local {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: start;
}

.page-about .about-local__media {
  margin: 0;
}

.page-about .about-local__media .media__frame {
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink-900);
  overflow: hidden;
}

.page-about .about-local__media .media__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(110% 90% at 20% 100%, rgba(0, 229, 255, .2), transparent 62%);
  pointer-events: none;
}

.page-about .about-local__text {
  margin: 0 0 22px;
  max-width: 40em;
  font-size: 14px;
  color: var(--paper-80);
}

.page-about .about-local__meta {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-local__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  background: var(--ink-800);
  padding: 14px 16px;
}

.page-about .about-local__row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .about-local__row dd {
  margin: 0;
  font-size: 14px;
  color: var(--paper);
  word-break: break-word;
}

.page-about .about-local__row .link-arrow {
  color: var(--cyan);
}

/* ---------- TEAM ---------- */

.page-about .about-team {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-team__cell {
  background: var(--ink-800);
  padding: 24px 22px;
  transition: background .24s linear;
}

.page-about .about-team__cell:hover {
  background: var(--ink-700);
}

.page-about .about-team__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--lime);
  margin-bottom: 10px;
}

.page-about .about-team__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: .04em;
}

.page-about .about-team__text {
  margin: 0;
  font-size: 14px;
  color: var(--paper-80);
}

/* ---------- RESPONSIVE ---------- */

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

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

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

  .page-about .about-flow__step:nth-child(odd) {
    padding-right: 24px;
  }

  .page-about .about-flow__step:nth-child(even) {
    padding-left: 24px;
  }

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

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

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

@media (min-width: 900px) {
  .page-about .about-chapter__grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 76px);
  }

  .page-about .about-chapter__rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    position: sticky;
    top: var(--about-top);
    align-self: start;
  }

  .page-about .about-chapter__rule {
    width: 1px;
    height: 112px;
    flex: none;
    background: linear-gradient(180deg, var(--cyan), transparent);
  }

  .page-about .about-system {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-about .about-local {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: end;
    gap: clamp(40px, 6vw, 88px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-audience__item,
  .page-about .about-tiers__item,
  .page-about .about-flow__step,
  .page-about .about-team__cell,
  .page-about .about-crumb a {
    transition: none;
  }

  .page-about .about-audience__item:hover,
  .page-about .about-tiers__item:hover {
    transform: none;
  }
}
<<<END>>>