.page-about {
  --about-rail: 168px;
  --about-body: #C9D6E4;
  --about-gap: clamp(16px, 2.4vw, 28px);
  background: var(--night);
  color: var(--sand);
  font-family: var(--font-body);
}

.page-about .media {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--lake), var(--board));
  border: 1px solid var(--line);
}

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

.page-about .about-link {
  color: var(--pulse);
  text-decoration: none;
  border-bottom: 1px solid rgba(50, 242, 198, 0.4);
  padding-bottom: 1px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-link:hover {
  color: var(--ochre-lit);
  border-color: var(--ochre-lit);
}

/* ---------- hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(32px, 5vw, 64px);
  overflow: clip;
}

.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: 0.22;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: -140px;
  right: -120px;
  width: min(520px, 70vw);
  height: min(520px, 70vw);
  background: radial-gradient(circle at 40% 40%, rgba(167, 61, 43, 0.34), transparent 68%);
  pointer-events: none;
}

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

.page-about .crumbs {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: center;
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 62px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--sand);
}

.page-about .about-hero__mark {
  display: block;
  font-style: normal;
  color: var(--ochre-lit);
  position: relative;
}

.page-about .about-hero__lead {
  margin: 18px 0 0;
  max-width: 48ch;
  color: var(--about-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-about .about-preview {
  margin-top: clamp(24px, 3vw, 34px);
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-about .about-preview__caption {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-about .about-preview__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 18px;
}

.page-about .about-preview__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--sand);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-about .about-preview__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-about .about-hero__media {
  aspect-ratio: 7 / 5;
  border-left: 2px solid var(--ochre);
}

/* ---------- sticky index ---------- */
.page-about .about-index {
  position: sticky;
  top: 0;
  z-index: 6;
  background: rgba(8, 20, 33, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-about .about-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 13px 14px;
  white-space: nowrap;
  color: var(--mist);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-index__link span {
  color: var(--ochre-lit);
  font-size: 11px;
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--sand);
  border-color: var(--pulse);
  background: rgba(18, 57, 92, 0.4);
}

/* ---------- sections ---------- */
.page-about .about-section {
  padding: clamp(40px, 6vw, 84px) 0;
  border-top: 1px solid var(--line);
}

.page-about .about-section__grid {
  display: grid;
  gap: clamp(18px, 3vw, 40px);
}

.page-about .about-rail {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-rail__num {
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1;
  color: var(--ochre-lit);
  letter-spacing: 0.04em;
}

.page-about .about-rail__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-about .about-section__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.16;
  font-weight: 700;
  color: var(--sand);
}

.page-about .about-body {
  margin: 0 0 14px;
  color: var(--about-body);
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.85;
  max-width: 62ch;
}

.page-about .about-body--tight {
  margin-top: 20px;
  margin-bottom: 0;
  font-size: 14.5px;
  color: var(--mist);
}

/* ---------- stats ---------- */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: clamp(24px, 3vw, 34px);
}

.page-about .about-stat {
  background: var(--board);
  padding: 18px 16px 20px;
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.4vw, 46px);
  line-height: 1;
  color: var(--sand);
}

.page-about .about-stat--accent .about-stat__num {
  color: var(--pulse);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--mist);
}

/* ---------- flow ---------- */
.page-about .about-flow {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-flow__item {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease);
}

.page-about .about-flow__item:hover {
  background: rgba(18, 57, 92, 0.28);
}

.page-about .about-flow__step {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--ochre-lit);
  padding-top: 4px;
}

.page-about .about-flow__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--sand);
}

.page-about .about-flow__desc {
  margin: 0;
  color: var(--about-body);
  font-size: 14.5px;
  line-height: 1.78;
}

/* ---------- timeline ---------- */
.page-about .about-history__grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  margin-top: clamp(22px, 3vw, 32px);
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 4px 0 4px 26px;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--ochre) 0%, var(--lake) 52%, var(--pulse) 100%);
}

.page-about .about-timeline__item {
  position: relative;
  padding-bottom: 24px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--night);
  border: 1px solid var(--ochre-lit);
  transform: rotate(45deg);
}

.page-about .about-timeline__item.is-current::before {
  background: var(--pulse);
  border-color: var(--pulse);
  box-shadow: 0 0 0 4px rgba(50, 242, 198, 0.16);
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--pulse);
}

.page-about .about-timeline__title {
  margin: 6px 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--sand);
}

.page-about .about-timeline__desc {
  margin: 0;
  color: var(--about-body);
  font-size: 14.5px;
  line-height: 1.78;
}

.page-about .about-history__media {
  aspect-ratio: 5 / 6;
  border-top: 2px solid var(--pulse);
}

/* ---------- team ---------- */
.page-about .about-roles {
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: clamp(22px, 3vw, 30px);
}

.page-about .about-role {
  background: rgba(8, 20, 33, 0.86);
  padding: 20px 18px 22px;
}

.page-about .about-role__key {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-about .about-role__title {
  margin: 8px 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--sand);
}

.page-about .about-role__list {
  margin: 0;
  padding-left: 16px;
  color: var(--about-body);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-about .about-role__list li + li {
  margin-top: 4px;
}

.page-about .about-cadence {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* ---------- ecosystem ---------- */
.page-about .about-eco__grid {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  margin-top: clamp(22px, 3vw, 32px);
  align-items: center;
}

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

.page-about .eco-node {
  position: relative;
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(18, 57, 92, 0.42), rgba(14, 30, 48, 0.86));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .eco-node:hover,
.page-about .eco-node:focus-within {
  border-color: var(--pulse);
  transform: translateY(-3px);
  background: linear-gradient(140deg, rgba(50, 242, 198, 0.12), rgba(14, 30, 48, 0.9));
}

.page-about .eco-node__key {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--pulse);
}

.page-about .eco-node__title {
  margin: 8px 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--sand);
}

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

.page-about .about-eco__media {
  aspect-ratio: 12 / 7;
  border-bottom: 2px solid var(--ochre);
}

.page-about .about-award {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 30px);
  padding: 14px 16px;
  border-left: 3px solid var(--gold);
  background: rgba(230, 185, 120, 0.08);
}

.page-about .about-award__badge {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-award__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--sand);
}

/* ---------- next ---------- */
.page-about .about-next__list {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-next__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: background var(--dur) var(--ease), padding var(--dur) var(--ease);
}

.page-about .about-next__link:hover,
.page-about .about-next__link:focus-visible {
  background: rgba(18, 57, 92, 0.36);
  padding-left: 12px;
}

.page-about .about-next__label {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--sand);
}

.page-about .about-next__note {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-next__arrow {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--ochre-lit);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-next__link:hover .about-next__arrow {
  color: var(--pulse);
  transform: translateX(4px);
}

.page-about .about-foot-note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 62ch;
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-about .about-preview__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-flow__item {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  }

  .page-about .about-hero__lead {
    margin-top: 22px;
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-history__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.66fr);
    align-items: start;
  }

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

  .page-about .about-eco__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

@media (min-width: 960px) {
  .page-about .about-section__grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(24px, 3vw, 48px);
  }

  .page-about .about-rail {
    position: sticky;
    top: 88px;
    align-self: start;
    display: block;
    padding-bottom: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line);
    padding-left: 14px;
  }

  .page-about .about-rail__num {
    display: block;
    font-size: 40px;
  }

  .page-about .about-rail__label {
    display: block;
    margin-top: 10px;
    line-height: 1.6;
  }
}

@media (min-width: 1100px) {
  .page-about .eco-nodes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-preview__link,
  .page-about .about-index__link,
  .page-about .about-flow__item,
  .page-about .eco-node,
  .page-about .about-next__link,
  .page-about .about-next__arrow,
  .page-about .about-link {
    transition-duration: 0.01ms;
  }

  .page-about .eco-node:hover,
  .page-about .eco-node:focus-within,
  .page-about .about-next__link:hover .about-next__arrow {
    transform: none;
  }
}
<<<END>>>