.page-about {
  --about-rail: 200px;
  --about-gap: clamp(1.4rem, 4vw, 2.6rem);
}

.page-about .about-top {
  padding-top: clamp(1.2rem, 4vw, 2rem);
}

.page-about .about-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: var(--about-gap);
  padding: clamp(1.4rem, 4vw, 2.4rem) 0 clamp(2rem, 5vw, 3rem);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -50px -6% -10% -6%;
  background-image: repeating-linear-gradient(115deg, rgba(28, 58, 74, .52) 0 1px, transparent 1px 52px);
  -webkit-mask-image: radial-gradient(120% 82% at 18% 22%, #000 0%, transparent 74%);
  mask-image: radial-gradient(120% 82% at 18% 22%, #000 0%, transparent 74%);
  pointer-events: none;
  z-index: -1;
}

.page-about .about-hero-copy h1 {
  margin: .5rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.15rem, 8.4vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -.015em;
  text-shadow: 0 0 26px rgba(37, 230, 230, .22);
}

.page-about .about-hero-copy .section-lede {
  margin-top: 1.1rem;
  max-width: 46ch;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.5rem;
}

.page-about .about-hero-media {
  clip-path: polygon(0 0, 100% 3.5%, 100% 100%, 0 96.5%);
}

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

.page-about .about-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 clamp(2.2rem, 6vw, 3.6rem);
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-figure {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: 1rem 1.05rem;
  background: var(--bg-abyss);
}

.page-about .about-figure-num {
  font-size: clamp(1.35rem, 4.6vw, 1.9rem);
  font-weight: 700;
  color: var(--cyan-soft);
  letter-spacing: -.01em;
}

.page-about .about-figure-label {
  font-size: .82rem;
  color: var(--text-dim);
  letter-spacing: .04em;
}

.page-about .about-layout {
  display: grid;
  gap: clamp(1.6rem, 5vw, 2.8rem);
  padding-bottom: clamp(2.6rem, 7vw, 4.4rem);
}

.page-about .about-rail-list {
  position: relative;
  display: flex;
  gap: .5rem;
  margin: 1rem 0 0;
  padding: 0 0 .4rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-about .about-rail-link {
  position: relative;
  display: inline-block;
  padding: .42rem .85rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: var(--bg-panel);
  color: var(--text-dim);
  font-size: .88rem;
  white-space: nowrap;
  text-decoration: none;
  transition: color .24s var(--ease), border-color .24s var(--ease), transform .24s var(--ease);
}

.page-about .about-rail-link:hover,
.page-about .about-rail-link[aria-current="true"] {
  color: var(--cyan-soft);
  border-color: var(--cyan);
  transform: translateY(-1px);
}

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

.page-about .about-chapter {
  position: relative;
  padding-top: clamp(2rem, 5vw, 3rem);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-about .about-chapter:not(:first-child)::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan) 16%, var(--line) 58%, transparent);
  opacity: .62;
}

.page-about .about-chapter > p {
  max-width: 62ch;
  color: var(--text-dim);
}

.page-about .about-chapter h3 {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: .01em;
}

.page-about .about-pullquote {
  margin: clamp(1.4rem, 4vw, 2rem) 0;
  padding: clamp(1rem, 3vw, 1.4rem) clamp(1.1rem, 3vw, 1.6rem);
  border-left: 2px solid var(--orange);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: linear-gradient(90deg, rgba(255, 122, 26, .11), transparent 72%);
}

.page-about .about-pullquote p {
  margin: 0;
  max-width: 44ch;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(1.08rem, 3.2vw, 1.42rem);
  line-height: 1.4;
  letter-spacing: .015em;
  color: var(--ember);
}

.page-about .about-principles {
  display: grid;
  gap: 1rem;
  margin: clamp(1.5rem, 4vw, 2.1rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-principle {
  position: relative;
  padding: 1.15rem 1.1rem 1.25rem;
  background: var(--bg-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-principle::after {
  content: "";
  position: absolute;
  top: -24px;
  right: -24px;
  width: 86px;
  height: 86px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 230, 230, .2), transparent 70%);
  pointer-events: none;
}

.page-about .about-principle-index {
  display: block;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-about .about-principle h3 {
  margin: .45rem 0 .5rem;
  font-size: 1.12rem;
  color: var(--text);
}

.page-about .about-principle p {
  margin: 0;
  font-size: .93rem;
  color: var(--text-dim);
}

.page-about .about-system {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.5rem, 4vw, 2.1rem);
}

.page-about .about-card {
  padding: 1.15rem 1.15rem 1.25rem;
}

.page-about .about-card .panel-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.16rem;
  letter-spacing: .015em;
}

.page-about .about-card .panel-text {
  margin: .65rem 0 0;
  font-size: .93rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-about .about-note {
  max-width: 62ch;
  margin-top: clamp(1.3rem, 4vw, 1.8rem);
  font-size: .94rem;
  color: var(--text-dim);
}

.page-about .about-timeline {
  position: relative;
  display: grid;
  gap: 1.1rem;
  margin: clamp(1.6rem, 4vw, 2.3rem) 0 0;
  padding: 0 0 0 1.5rem;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: .5rem;
  bottom: .5rem;
  left: 5px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--ember) 55%, var(--orange));
  opacity: .75;
}

.page-about .about-node {
  position: relative;
  padding: 1.05rem 1.1rem 1.15rem;
  background: linear-gradient(135deg, var(--bg-panel), rgba(18, 30, 51, .42));
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: border-color .28s var(--ease), transform .28s var(--ease), box-shadow .28s var(--ease);
}

.page-about .about-node::before {
  content: "";
  position: absolute;
  top: 1.35rem;
  left: -1.5rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(37, 230, 230, .1);
}

.page-about .about-node:hover {
  border-color: rgba(37, 230, 230, .5);
  transform: translateX(3px);
  box-shadow: var(--shadow-soft);
}

.page-about .about-node-tag {
  display: inline-block;
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-about .about-node h3 {
  margin: .4rem 0 .5rem;
  font-size: 1.1rem;
  color: var(--text);
}

.page-about .about-node p {
  margin: 0;
  max-width: 58ch;
  font-size: .92rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-about .about-team-media {
  margin: clamp(1.4rem, 4vw, 2rem) 0 clamp(1.4rem, 4vw, 2rem);
}

.page-about .about-team-media img,
.page-about .about-city-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-roles {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-role {
  position: relative;
  padding: 1.1rem 1.15rem 1.2rem;
  background: var(--bg-abyss);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .about-role:hover,
.page-about .about-role:focus-within {
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: 0 0 0 1px rgba(37, 230, 230, .22), var(--shadow-soft);
}

.page-about .about-role-index {
  position: absolute;
  top: 1rem;
  right: 1.1rem;
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--line);
}

.page-about .about-role h3 {
  margin: 0 0 .5rem;
  font-size: 1.06rem;
  color: var(--cyan-soft);
}

.page-about .about-role p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-about .about-city-media {
  margin: clamp(1.5rem, 4vw, 2.2rem) 0 0;
}

.page-about .about-cta {
  margin-top: clamp(2.4rem, 7vw, 3.6rem);
  padding: clamp(1.6rem, 5vw, 2.6rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(37, 230, 230, .15), transparent 56%),
    radial-gradient(120% 140% at 100% 100%, rgba(255, 122, 26, .15), transparent 56%),
    var(--bg-abyss);
}

.page-about .about-cta p {
  max-width: 52ch;
  margin-top: .8rem;
  color: var(--text-dim);
}

.page-about .about-cta-links {
  display: grid;
  gap: .7rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-cta-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  padding: .85rem 1rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(7, 11, 20, .58);
  color: var(--text);
  font-size: .95rem;
  text-decoration: none;
  transition: border-color .26s var(--ease), color .26s var(--ease), transform .26s var(--ease);
}

.page-about .about-cta-link:hover {
  border-color: var(--cyan);
  color: var(--cyan-soft);
  transform: translateY(-2px);
}

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

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

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

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

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

  .page-about .about-card--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
    gap: clamp(2rem, 5vw, 3.4rem);
  }

  .page-about .about-hero-copy {
    padding-right: 1rem;
  }

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

@media (min-width: 960px) {
  .page-about .about-layout {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.4rem);
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-h) + 22px);
    align-self: start;
  }

  .page-about .about-rail-list {
    display: grid;
    gap: .7rem;
    padding: 0 0 0 1.1rem;
    overflow: visible;
  }

  .page-about .about-rail-list::before {
    content: "";
    position: absolute;
    top: .4rem;
    bottom: .4rem;
    left: 3px;
    width: 1px;
    background: linear-gradient(180deg, var(--cyan), transparent 62%, var(--orange));
  }

  .page-about .about-rail-link {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: none;
    font-size: .89rem;
  }

  .page-about .about-rail-link::before {
    content: "";
    position: absolute;
    top: 50%;
    left: -1.1rem;
    width: 7px;
    height: 7px;
    margin-top: -3.5px;
    border-radius: 50%;
    background: var(--bg);
    border: 1px solid var(--line);
    transition: background .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
  }

  .page-about .about-rail-link:hover,
  .page-about .about-rail-link[aria-current="true"] {
    transform: translateX(2px);
  }

  .page-about .about-rail-link[aria-current="true"]::before {
    background: var(--cyan);
    border-color: var(--cyan);
    box-shadow: 0 0 10px 1px rgba(37, 230, 230, .68);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .reveal {
    opacity: 1 !important;
    transform: none !important;
  }

  .page-about .about-node:hover,
  .page-about .about-role:hover,
  .page-about .about-cta-link:hover,
  .page-about .about-rail-link:hover {
    transform: none;
  }
}
<<<END>>>
</main>