.page-about {
  background: var(--abyss-900);
  color: var(--frost-050);
  overflow-x: clip;
}

.page-about .about-hero {
  position: relative;
  padding: clamp(20px, 4vw, 40px) 0 clamp(44px, 8vw, 88px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -12% -25% auto -25%;
  height: 78%;
  background:
    radial-gradient(58% 68% at 80% 10%, rgba(53, 240, 138, .16), transparent 62%),
    radial-gradient(52% 62% at 16% 0%, rgba(111, 195, 255, .14), transparent 66%);
  pointer-events: none;
  z-index: 0;
}

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

.page-about .breadcrumb {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--slate-400);
  margin-bottom: clamp(20px, 4vw, 36px);
}

.page-about .breadcrumb a {
  color: var(--slate-400);
  text-decoration: none;
  transition: color .3s var(--ease);
}

.page-about .breadcrumb a:hover {
  color: var(--mint-200);
}

.page-about .breadcrumb-sep {
  margin: 0 8px;
  color: rgba(132, 151, 176, .6);
}

.page-about .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 54px);
}

.page-about .label {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--sky-300);
  margin: 0;
}

.page-about h1 {
  margin: .34em 0 0;
  font-size: clamp(30px, 8.4vw, 54px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -.02em;
}

.page-about .hero-lede {
  margin: clamp(16px, 3vw, 24px) 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate-400);
  max-width: 40em;
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3.4vw, 30px);
}

.page-about .hero-aside {
  background: linear-gradient(160deg, rgba(18, 41, 77, .9), rgba(10, 23, 48, .55));
  border: 1px solid var(--line-tint);
  border-radius: var(--radius-card);
  padding: clamp(18px, 3vw, 26px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-about .hero-note {
  margin: 0;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--slate-400);
  border-top: 1px solid var(--line-tint);
  padding-top: 12px;
  order: 2;
}

.page-about .hero-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
  order: 1;
}

.page-about .hero-fact {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  border-top: 1px solid var(--line-tint);
  padding-top: 14px;
}

.page-about .hero-fact:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .hero-fact-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 5.4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--neon-400);
}

.page-about .hero-fact:nth-child(2) .hero-fact-num {
  color: var(--sky-300);
}

.page-about .hero-fact:nth-child(3) .hero-fact-num {
  color: var(--amber-400);
}

.page-about .hero-fact-cap {
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate-400);
}

.page-about .about-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 36px);
  padding-bottom: clamp(50px, 9vw, 110px);
}

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

.page-about .rail-list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .rail-list::-webkit-scrollbar {
  display: none;
}

.page-about .rail-link {
  display: inline-block;
  white-space: nowrap;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate-400);
  text-decoration: none;
  padding: 7px 13px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-tint);
  background: rgba(18, 41, 77, .5);
  transition: color .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease);
}

.page-about .rail-link:hover {
  color: var(--mint-200);
  border-color: rgba(166, 255, 212, .45);
}

.page-about .rail-link[aria-current="true"] {
  color: var(--abyss-900);
  background: var(--neon-400);
  border-color: var(--neon-400);
  font-weight: 600;
}

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

.page-about .flow-section {
  position: relative;
  padding: 0 0 clamp(46px, 8vw, 92px);
  scroll-margin-top: 90px;
}

.page-about .flow-section--navy {
  background: linear-gradient(180deg, rgba(10, 23, 48, .92), rgba(10, 23, 48, .5));
  border-top: 1px solid var(--line-tint);
  border-bottom: 1px solid var(--line-tint);
  border-radius: 6px;
  padding-left: clamp(14px, 3.2vw, 34px);
  padding-right: clamp(14px, 3.2vw, 34px);
  padding-top: clamp(34px, 6vw, 62px);
  padding-bottom: clamp(34px, 6vw, 62px);
  margin-bottom: clamp(46px, 8vw, 92px);
}

.page-about .chapter-head {
  margin-bottom: clamp(20px, 3.6vw, 34px);
}

.page-about .chapter-no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--amber-400);
  margin: 0 0 10px;
}

.page-about .chapter-title {
  margin: 0;
  font-size: clamp(24px, 6.2vw, 40px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.015em;
}

.page-about .chapter-sub {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate-400);
  max-width: 36em;
}

.page-about .flow-p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.8;
  color: #C4D2E6;
  max-width: 62ch;
}

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

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

.page-about .about-figure {
  margin: 0;
  min-width: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  border: 1px solid var(--line-tint);
  object-fit: cover;
  background: var(--navy-800);
}

.page-about .about-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.6;
  color: var(--slate-400);
}

.page-about .next-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: clamp(14px, 2.4vw, 22px);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--sky-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 195, 255, .32);
  padding-bottom: 3px;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}

.page-about .next-link:hover {
  color: var(--mint-200);
  border-color: var(--mint-200);
}

.page-about .inline-link {
  color: var(--mint-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(166, 255, 212, .4);
}

.page-about .inline-link:hover {
  border-color: var(--mint-200);
}

.page-about .team-grid {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 8px;
  scrollbar-width: none;
}

.page-about .team-grid::-webkit-scrollbar {
  display: none;
}

.page-about .team-card {
  flex: 0 0 84%;
  scroll-snap-align: start;
  background: linear-gradient(160deg, rgba(18, 41, 77, .92), rgba(10, 23, 48, .55));
  border: 1px solid var(--line-tint);
  border-radius: var(--radius-card);
  padding: 20px;
  transition: border-color .4s var(--ease), box-shadow .4s var(--ease);
}

.page-about .team-card:hover {
  border-color: rgba(166, 255, 212, .5);
  box-shadow: 0 0 26px rgba(53, 240, 138, .1);
}

.page-about .team-role {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--neon-400);
  margin: 0 0 10px;
}

.page-about .team-title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .team-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate-400);
}

.page-about .night-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: clamp(20px, 3.4vw, 30px);
  align-items: center;
}

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

.page-about .data-aside {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  border-top: 1px solid var(--line-tint);
  padding-top: 18px;
}

.page-about .data-chip {
  display: grid;
  gap: 6px;
}

.page-about .data-chip-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 5vw, 30px);
  font-weight: 700;
  color: var(--sky-300);
  line-height: 1;
}

.page-about .data-chip:nth-child(2) .data-chip-num {
  color: var(--neon-400);
}

.page-about .data-chip:nth-child(3) .data-chip-num {
  color: var(--amber-400);
}

.page-about .data-chip-cap {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--slate-400);
  line-height: 1.5;
}

.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 2px 0 2px 26px;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--neon-400), rgba(111, 195, 255, .4) 58%, rgba(120, 180, 255, .05));
}

.page-about .tl-item {
  position: relative;
  padding-bottom: 26px;
}

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

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--navy-700);
  box-shadow: 0 0 0 1px var(--line-tint);
}

.page-about .tl-item:first-child::before,
.page-about .tl-item:last-child::before {
  background: var(--neon-400);
  box-shadow: 0 0 12px rgba(53, 240, 138, .7);
}

.page-about .tl-tag {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--amber-400);
}

.page-about .tl-title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .tl-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate-400);
  max-width: 52ch;
}

.page-about .timeline-note {
  margin: clamp(18px, 3vw, 26px) 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate-400);
}

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

.page-about .standard-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: clamp(18px, 3vw, 26px) 0;
  border-top: 1px solid var(--line-tint);
  align-items: start;
}

.page-about .standard-item:last-child {
  border-bottom: 1px solid var(--line-tint);
}

.page-about .standard-no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--neon-400);
  padding-top: 3px;
}

.page-about .standard-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .standard-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate-400);
  max-width: 58ch;
}

.page-about .standard-foot {
  margin: clamp(16px, 3vw, 24px) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate-400);
}

.page-about .reach {
  position: relative;
  overflow: hidden;
}

.page-about .reach-watermark {
  position: absolute;
  right: -10px;
  bottom: 42px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(56px, 15vw, 96px);
  line-height: 1;
  letter-spacing: -.04em;
  color: rgba(111, 195, 255, .07);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

.page-about .reach-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  position: relative;
  z-index: 1;
}

.page-about .reach-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 12px;
}

.page-about .reach-item {
  display: grid;
  gap: 6px;
  border-left: 1px solid var(--line-tint);
  padding-left: 12px;
}

.page-about .reach-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 5.4vw, 34px);
  font-weight: 700;
  color: var(--frost-050);
  line-height: 1;
  letter-spacing: -.02em;
}

.page-about .reach-num--amber {
  color: var(--amber-400);
}

.page-about .reach-unit {
  font-size: .58em;
  margin-left: 2px;
}

.page-about .reach-cap {
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate-400);
}

.page-about .about-cta {
  margin-top: clamp(26px, 4.4vw, 42px);
  padding-top: clamp(20px, 3.4vw, 30px);
  border-top: 1px solid var(--line-tint);
  position: relative;
  z-index: 1;
}

.page-about .cta-text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-400);
  max-width: 50ch;
}

.page-about .cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 760px) {
  .page-about .team-grid {
    display: grid;
    grid-template-columns: 5fr 4fr 3fr;
    gap: 14px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .team-card {
    flex: none;
  }

  .page-about .data-aside {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 0;
    padding-top: 0;
    border-left: 1px solid var(--line-tint);
    padding-left: 20px;
    align-content: start;
    gap: 18px;
    grid-template-columns: minmax(0, 1fr);
  }

  .page-about .reach-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: center;
    gap: clamp(24px, 3.4vw, 44px);
  }

  .page-about .reach-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 16px;
  }
}

@media (min-width: 900px) {
  .page-about .hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: start;
    gap: clamp(32px, 4vw, 60px);
  }

  .page-about .hero-aside {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 20px;
    align-items: start;
    padding: 26px 24px;
  }

  .page-about .hero-note {
    writing-mode: vertical-rl;
    order: 0;
    border-top: 0;
    border-left: 1px solid var(--line-tint);
    padding: 0 0 0 10px;
    letter-spacing: .22em;
  }

  .page-about .hero-facts {
    order: 0;
  }

  .page-about .about-body {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
  }

  .page-about .about-rail {
    position: sticky;
    top: 108px;
    align-self: start;
  }

  .page-about .rail-list {
    display: block;
    overflow: visible;
    position: relative;
    padding: 6px 0 6px 20px;
  }

  .page-about .rail-list::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 14px;
    bottom: 14px;
    width: 1px;
    background: linear-gradient(180deg, var(--neon-400), rgba(111, 195, 255, .34) 55%, var(--line-tint));
  }

  .page-about .rail-link {
    display: block;
    position: relative;
    background: none;
    border: 0;
    border-radius: 0;
    padding: 9px 0;
    font-size: 13px;
    letter-spacing: .06em;
    transition: color .3s var(--ease);
  }

  .page-about .rail-link:hover {
    border-color: transparent;
  }

  .page-about .rail-link::before {
    content: "";
    position: absolute;
    left: -18px;
    top: 17px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--navy-700);
    box-shadow: 0 0 0 1px var(--line-tint);
    transition: background .3s var(--ease), box-shadow .3s var(--ease);
  }

  .page-about .rail-link[aria-current="true"] {
    background: none;
    color: var(--mint-200);
  }

  .page-about .rail-link[aria-current="true"]::before {
    background: var(--neon-400);
    box-shadow: 0 0 12px rgba(53, 240, 138, .75);
  }

  .page-about .origin-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: center;
    gap: clamp(24px, 3vw, 44px);
  }

  .page-about .night-block {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: clamp(24px, 3vw, 40px);
    align-items: center;
  }

  .page-about .data-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    gap: clamp(24px, 3.4vw, 46px);
    align-items: start;
  }

  .page-about .reach-watermark {
    right: 12px;
    bottom: 80px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .rail-link,
  .page-about .team-card,
  .page-about .next-link,
  .page-about .inline-link,
  .page-about .rail-link::before {
    transition: none;
  }
}
<<<END>>>