.page-about {
  --about-idx-w: 216px;
  --about-cut: 18px;
  --about-card: rgba(13, 43, 69, 0.55);
  --about-card-line: var(--line);
}

.page-about .about-hero {
  position: relative;
  padding: clamp(28px, 5vw, 64px) 0 clamp(36px, 6vw, 72px);
  background:
    radial-gradient(120% 90% at 88% 8%, rgba(24, 214, 200, 0.16) 0%, rgba(7, 26, 47, 0) 62%),
    linear-gradient(152deg, #071a2f 0%, #0d2b45 58%, #071a2f 100%);
  color: var(--c-white);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -60px;
  width: 340px;
  height: 340px;
  border: 1px solid var(--line-lime);
  transform: rotate(24deg);
  pointer-events: none;
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
}

.page-about .about-hero__lead {
  max-width: 62ch;
}

.page-about .about-hero .eyebrow {
  color: var(--c-cyan);
  margin-bottom: 16px;
}

.page-about .about-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 74px);
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.page-about .about-hero__intro {
  max-width: 56ch;
  margin: 0;
  color: rgba(234, 246, 247, 0.86);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
}

.page-about .about-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__figure {
  margin: 0;
  position: relative;
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line-cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
  box-shadow: var(--shadow-2);
}

.page-about .about-hero__figure figcaption {
  margin-top: 12px;
  color: var(--c-slate);
  display: block;
}

.page-about .about-body {
  padding-top: clamp(28px, 4vw, 56px);
}

.page-about .about-body__grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 52px);
}

.page-about .about-index {
  border-top: 1px solid var(--line-strong);
  padding-top: 14px;
}

.page-about .about-index__cap {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-slate);
  text-transform: uppercase;
}

.page-about .about-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 0 6px 10px;
  border-left: 2px solid transparent;
  color: inherit;
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .about-index__link .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-slate);
  letter-spacing: 0.1em;
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--c-cyan);
  border-left-color: var(--c-lime);
  transform: translateX(2px);
}

.page-about .about-index__link:hover .mono,
.page-about .about-index__link:focus-visible .mono {
  color: var(--c-lime);
}

.page-about .about-chapter {
  padding-bottom: clamp(34px, 5vw, 64px);
}

.page-about .about-chapter + .about-chapter {
  padding-top: clamp(30px, 4vw, 52px);
  border-top: 1px solid var(--line);
}

.page-about .about-chapter .eyebrow {
  color: var(--c-cyan);
  margin-bottom: 14px;
}

.page-about .about-chapter h2 {
  margin: 0 0 16px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  max-width: 24ch;
}

.page-about .about-chapter__lead {
  max-width: 64ch;
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.8;
}

.page-about .about-chapter h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-about .about-chapter p {
  line-height: 1.78;
}

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

.page-about .about-scene {
  position: relative;
  padding: 20px 20px 20px 22px;
  background: var(--about-card);
  border: 1px solid var(--about-card-line);
  border-left: 3px solid var(--c-cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-about .about-scene:hover {
  transform: translateY(-3px);
  border-color: var(--line-cyan);
  box-shadow: var(--shadow-1);
}

.page-about .about-scene__num {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-lime);
}

.page-about .about-scene p {
  margin: 0;
  font-size: 15px;
  color: rgba(234, 246, 247, 0.82);
}

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--c-cyan), var(--line-cyan) 55%, rgba(124, 152, 166, 0.12));
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 22px 0;
  outline: none;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--c-space);
  border: 2px solid var(--c-cyan);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-timeline__item:hover::before,
.page-about .about-timeline__item:focus-visible::before,
.page-about .about-timeline__item:focus-within::before {
  background: var(--c-lime);
  border-color: var(--c-lime);
}

.page-about .about-timeline__item:focus-visible {
  box-shadow: 0 0 0 2px var(--c-lime);
  border-radius: 4px;
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--c-cyan);
  margin-bottom: 6px;
}

.page-about .about-timeline__body p {
  margin: 0;
  font-size: 15px;
  max-width: 60ch;
}

.page-about .about-timeline__more {
  margin-top: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  color: var(--c-slate);
  transition: max-height 0.3s var(--ease), opacity 0.3s var(--ease), margin-top 0.3s var(--ease);
}

.page-about .about-timeline__item:hover .about-timeline__more,
.page-about .about-timeline__item:focus-within .about-timeline__more,
.page-about .about-timeline__item:focus-visible .about-timeline__more {
  max-height: 6em;
  opacity: 1;
  margin-top: 8px;
}

.page-about .about-system {
  padding: clamp(24px, 3.6vw, 44px);
  background: var(--c-paper);
  color: var(--c-coal);
  border: 1px solid rgba(16, 24, 32, 0.12);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-about .about-system + .about-chapter {
  border-top: 0;
}

.page-about .about-system .eyebrow {
  color: #0b6f68;
}

.page-about .about-system__note {
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: #2a3238;
  max-width: 66ch;
}

.page-about .about-metrics {
  display: grid;
  gap: 18px 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-about .about-metric {
  border-top: 2px solid var(--c-coal);
  padding-top: 10px;
}

.page-about .about-metric__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.4vw, 44px);
  font-weight: 500;
  line-height: 1;
  color: var(--c-coal);
  letter-spacing: -0.02em;
}

.page-about .about-metric__label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: #34414a;
}

.page-about .about-team__layout {
  display: grid;
  gap: 20px;
}

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

.page-about .about-role {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 16px 18px;
  background: var(--about-card);
  border: 1px solid var(--about-card-line);
  border-top: 2px solid var(--c-cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  outline: none;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-about .about-role:hover,
.page-about .about-role:focus-visible {
  transform: translateY(-3px);
  border-color: var(--line-cyan);
  border-top-color: var(--c-lime);
  box-shadow: var(--shadow-1);
}

.page-about .about-role:focus-visible {
  box-shadow: 0 0 0 2px var(--c-lime), var(--shadow-1);
}

.page-about .about-role__num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  color: var(--c-lime);
  line-height: 1;
}

.page-about .about-role__name {
  font-size: 15px;
  font-weight: 700;
}

.page-about .about-role__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(234, 246, 247, 0.78);
}

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

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line-cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

.page-about .about-team__figure figcaption {
  margin-top: 10px;
  color: var(--c-slate);
  display: block;
}

.page-about .about-team__note {
  margin: 22px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(234, 246, 247, 0.86);
  border-left: 2px solid var(--c-orange);
  padding-left: 16px;
}

.page-about .about-ecosystem__layout {
  display: grid;
  gap: 20px;
}

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

.page-about .about-partner {
  padding: 16px;
  border: 1px solid var(--about-card-line);
  background:
    linear-gradient(135deg, rgba(24, 214, 200, 0.08), rgba(24, 214, 200, 0) 60%),
    var(--about-card);
  outline: none;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-about .about-partner:hover,
.page-about .about-partner:focus-visible {
  transform: translateY(-2px);
  border-color: var(--line-lime);
  box-shadow: var(--shadow-1);
}

.page-about .about-partner:focus-visible {
  box-shadow: 0 0 0 2px var(--c-lime), var(--shadow-1);
}

.page-about .about-partner__kind {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-orange);
  margin-bottom: 8px;
}

.page-about .about-partner h3 {
  font-size: 15.5px;
  margin-bottom: 6px;
}

.page-about .about-partner__type {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(234, 246, 247, 0.7);
  transition: color 0.2s var(--ease);
}

.page-about .about-partner:hover .about-partner__type,
.page-about .about-partner:focus-visible .about-partner__type {
  color: var(--c-white);
}

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

.page-about .about-ecosystem__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

.page-about .about-ecosystem__figure figcaption {
  margin-top: 10px;
  color: var(--c-slate);
  display: block;
}

.page-about .about-ecosystem__note {
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
}

.page-about .about-ecosystem__note a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-ecosystem__note a:hover,
.page-about .about-ecosystem__note a:focus-visible {
  color: var(--c-lime);
}

.page-about .about-access__list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-access__list li {
  padding-left: 16px;
  border-left: 2px solid var(--line-cyan);
}

.page-about .about-access__list p {
  margin: 0;
  font-size: 14.5px;
  color: rgba(234, 246, 247, 0.84);
  max-width: 58ch;
}

.page-about .about-access__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

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

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

  .page-about .about-team__layout {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-about .about-ecosystem__layout {
    grid-template-columns: 1fr 0.8fr;
    align-items: start;
  }

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

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }

  .page-about .about-body__grid {
    grid-template-columns: var(--about-idx-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

  .page-about .about-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-about .about-index__link {
    width: 100%;
    padding: 8px 0 8px 12px;
    font-size: 14.5px;
  }

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

@media (min-width: 1180px) {
  .page-about .about-timeline {
    padding-left: 40px;
  }

  .page-about .about-timeline__item::before {
    left: -40px;
    width: 13px;
    height: 13px;
  }

  .page-about .about-timeline::before {
    left: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-scene,
  .page-about .about-role,
  .page-about .about-partner,
  .page-about .about-index__link,
  .page-about .about-timeline__more {
    transition: none;
  }

  .page-about .about-scene:hover,
  .page-about .about-role:hover,
  .page-about .about-role:focus-visible,
  .page-about .about-partner:hover,
  .page-about .about-partner:focus-visible,
  .page-about .about-index__link:hover,
  .page-about .about-index__link:focus-visible {
    transform: none;
  }
}
<<<END>>>