.page-about {
  --about-gap: clamp(52px, 7vw, 108px);
  --about-rule: 1px solid var(--line);
  display: block;
  background: var(--void);
  color: var(--cream);
  padding-bottom: clamp(80px, 12vw, 200px);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(32px, 6vw, 80px) clamp(48px, 8vw, 96px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 78%;
  background:
    radial-gradient(58% 100% at 18% 0%, var(--violet-soft), transparent 68%),
    radial-gradient(48% 80% at 88% 8%, var(--cyan-soft), transparent 70%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}

.page-about .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  font-size: var(--f12);
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-about .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

.page-about .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 220ms var(--ease), border-color 220ms var(--ease);
}

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

.page-about .eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: var(--f12);
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about h1 {
  margin: 0 0 20px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(2rem, 5.6vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-about .lede {
  margin: 0 0 30px;
  max-width: 40ch;
  font-size: clamp(16px, 1.9vw, 20px);
  line-height: 1.75;
  color: color-mix(in srgb, var(--cream) 88%, transparent);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__media {
  margin: 0;
  border: var(--about-rule);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow-1);
}

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

.page-about .media__caption {
  margin: 0;
  padding: 12px 16px;
  font-size: var(--f13);
  color: var(--muted);
  border-top: var(--about-rule);
  background: var(--haze);
}

/* ---------- Origin ---------- */
.page-about .about-origin__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
}

.page-about .section-title {
  margin: 0 0 20px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2.25rem);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--cream);
}

.page-about .prose p {
  margin: 0 0 1.2em;
  max-width: 68ch;
  font-size: var(--f17);
  line-height: 1.85;
  color: color-mix(in srgb, var(--cream) 84%, transparent);
}

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

.page-about .about-origin__facts {
  display: grid;
  gap: 26px;
  align-content: start;
  padding-top: 8px;
}

.page-about .stat {
  display: grid;
  gap: 8px;
  padding-left: 18px;
  border-left: 1px solid var(--line-strong);
}

.page-about .stat__value {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.1;
  color: var(--cyan);
}

.page-about .stat__label {
  font-size: var(--f13);
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- Timeline ---------- */
.page-about .about-timeline {
  padding-block: var(--about-gap);
  background: linear-gradient(180deg, var(--panel) 0%, transparent 72%);
  border-top: var(--about-rule);
  border-bottom: var(--about-rule);
}

.page-about .about-timeline__head {
  max-width: 62ch;
  margin-bottom: clamp(30px, 5vw, 56px);
}

.page-about .about-timeline__lede {
  max-width: 46ch;
  margin-bottom: 0;
}

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

.page-about .timeline__item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 6px 16px;
  padding: 22px 16px 22px 14px;
  border-top: var(--about-rule);
  border-radius: 8px;
  transition: background-color 280ms var(--ease);
}

.page-about .timeline__item:last-child {
  border-bottom: var(--about-rule);
}

.page-about .timeline__item:hover,
.page-about .timeline__item:focus-within {
  background: var(--haze);
}

.page-about .timeline__node {
  grid-row: 1 / span 3;
  align-self: start;
  width: 10px;
  height: 10px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 0 4px var(--violet-soft);
  transition: background-color 280ms var(--ease), box-shadow 280ms var(--ease);
}

.page-about .timeline__item:hover .timeline__node {
  background: var(--cyan);
  box-shadow: 0 0 0 5px var(--cyan-soft);
}

.page-about .timeline__item:last-child .timeline__node {
  background: var(--cyan);
  box-shadow: 0 0 0 5px var(--cyan-soft);
  animation: about-pulse 2.8s var(--ease) infinite;
}

.page-about .timeline__era {
  grid-column: 2;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: var(--f12);
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-about .timeline__title {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: var(--f20);
  line-height: 1.35;
  color: var(--cream);
}

.page-about .timeline__text {
  grid-column: 2;
  margin: 0;
  font-size: var(--f15);
  line-height: 1.78;
  color: var(--muted);
}

@keyframes about-pulse {
  0%, 100% { box-shadow: 0 0 0 5px var(--cyan-soft); }
  50% { box-shadow: 0 0 0 9px rgba(47, 227, 218, 0.05); }
}

/* ---------- Lines ---------- */
.page-about .about-lines__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
  margin-bottom: clamp(36px, 5vw, 64px);
}

.page-about .about-lines__media {
  margin: 0;
  border: var(--about-rule);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--panel);
}

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

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

.page-about .about-lines__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 18px;
  margin-bottom: 26px;
  border-bottom: var(--about-rule);
}

.page-about .about-lines__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(22px, 3vw, 34px);
  border: var(--about-rule);
  border-radius: var(--r);
  background: var(--panel);
  box-shadow: var(--shadow-1);
}

.page-about .about-lines__desc {
  margin: 0;
  max-width: 58ch;
  font-size: var(--f17);
  line-height: 1.8;
  color: color-mix(in srgb, var(--cream) 86%, transparent);
}

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

.page-about .flow__step {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-size: var(--f15);
  line-height: 1.6;
  color: color-mix(in srgb, var(--cream) 82%, transparent);
  transition: background-color 240ms var(--ease), color 240ms var(--ease);
}

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

.page-about .flow__step:hover {
  background: var(--violet-soft);
  color: var(--cream);
}

.page-about .flow__idx {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: var(--f12);
  letter-spacing: 0.06em;
  color: var(--violet);
}

.page-about .about-lines__foot {
  margin: clamp(24px, 3vw, 36px) 0 0;
  max-width: 66ch;
  font-size: var(--f15);
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-lines__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 218, 0.4);
}

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

/* ---------- Map ---------- */
.page-about .about-map {
  padding-block: var(--about-gap);
  background:
    radial-gradient(70% 120% at 50% 0%, var(--cyan-soft), transparent 70%),
    linear-gradient(180deg, transparent, var(--void) 70%);
  border-top: var(--about-rule);
  border-bottom: var(--about-rule);
}

.page-about .about-map__head {
  max-width: 64ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-about .about-map__lead {
  margin: 0;
  max-width: 58ch;
  font-size: var(--f17);
  line-height: 1.85;
  color: color-mix(in srgb, var(--cream) 82%, transparent);
}

.page-about .about-map__visual {
  position: relative;
  aspect-ratio: 4 / 3;
  border: var(--about-rule);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--haze);
}

.page-about .about-map__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.page-about .about-map__grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 6%;
  color: var(--violet);
}

.page-about .about-map__grid circle {
  transition: opacity 260ms var(--ease), fill 260ms var(--ease);
}

.page-about .about-map__grid circle:hover {
  opacity: 1;
  fill: var(--cyan);
}

.page-about .about-map__dot--focus {
  fill: var(--cyan);
  opacity: 1;
}

.page-about .about-map__legend {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  font-size: var(--f13);
  color: var(--muted);
}

.page-about .about-map__legend li {
  display: flex;
  align-items: center;
  gap: 9px;
}

.page-about .legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: none;
}

.page-about .legend-dot--focus {
  background: var(--cyan);
  box-shadow: 0 0 0 4px var(--cyan-soft);
}

.page-about .legend-dot--high {
  background: var(--violet);
}

.page-about .legend-dot--base {
  background: var(--violet);
  opacity: 0.4;
}

/* ---------- Team ---------- */
.page-about .about-team__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(34px, 5vw, 64px);
}

.page-about .about-team__partners {
  align-self: start;
  padding: clamp(22px, 3vw, 32px);
  border: var(--about-rule);
  border-radius: var(--r);
  background: linear-gradient(180deg, var(--haze), var(--panel));
}

.page-about .about-team__subtitle {
  margin: 0 0 20px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: var(--f20);
  line-height: 1.4;
  color: var(--cream);
}

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

.page-about .partner-list__item {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-about .partner-list__item:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .partner-list__item p {
  margin: 10px 0 0;
  font-size: var(--f15);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- Promise ---------- */
.page-about .about-promise {
  padding-block: var(--about-gap) 0;
}

.page-about .about-promise__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 72px);
}

.page-about .about-quote {
  margin: 0;
  padding-left: clamp(18px, 3vw, 30px);
  border-left: 2px solid var(--orange);
}

.page-about .about-quote p {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.6vw, 1.75rem);
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-about .promise-list {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .promise-list__item {
  position: relative;
  padding-left: 22px;
  font-size: var(--f15);
  line-height: 1.8;
  color: color-mix(in srgb, var(--cream) 84%, transparent);
}

.page-about .promise-list__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-about .about-promise__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Responsive ---------- */
@media (min-width: 760px) {
  .page-about .timeline__item {
    grid-template-columns: 28px 168px minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 0 28px;
    align-items: baseline;
    padding: 26px 20px 26px 16px;
  }

  .page-about .timeline__node {
    grid-row: 1;
    margin-top: 10px;
  }

  .page-about .timeline__era,
  .page-about .timeline__title,
  .page-about .timeline__text {
    grid-column: auto;
  }

  .page-about .timeline__era {
    padding-top: 4px;
  }

  .page-about .timeline__title {
    font-size: var(--f20);
  }

  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-left: 0;
    border-top: 1px solid var(--line);
  }

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

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: end;
  }

  .page-about .about-origin__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(40px, 6vw, 88px);
  }

  .page-about .about-lines__head {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-about .about-lines__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-about .about-lines__tabs {
    gap: 12px;
  }

  .page-about .about-map__visual {
    aspect-ratio: 16 / 6;
  }

  .page-about .about-team__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-about .about-promise__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-about .about-quote {
    position: sticky;
    top: calc(var(--ticker-h) + 40px);
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .timeline__item:last-child .timeline__node {
    animation: none;
  }

  .page-about .timeline__item,
  .page-about .timeline__node,
  .page-about .about-map__grid circle,
  .page-about .flow__step,
  .page-about .breadcrumbs a {
    transition: none;
  }
}
<<<END>>>