.page-about {
  padding-bottom: clamp(56px, 8vw, 96px);
  overflow-x: hidden;
}

.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 5vw, 48px) 0 clamp(44px, 7vw, 80px);
  border-bottom: 1px solid var(--grid);
  background:
    linear-gradient(115deg, rgba(8, 20, 34, 0.96) 0%, rgba(8, 20, 34, 0.78) 48%, rgba(14, 33, 53, 0.9) 100%),
    repeating-linear-gradient(90deg, rgba(44, 74, 102, 0.34) 0 1px, transparent 1px 80px),
    repeating-linear-gradient(0deg, rgba(44, 74, 102, 0.26) 0 1px, transparent 1px 80px);
}

.page-about .hero-media {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-about .hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  filter: saturate(0.7) brightness(0.62);
}

.page-about .hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 20, 34, 0.35) 0%, rgba(8, 20, 34, 0.2) 48%, var(--ink) 100%);
}

.page-about .hero-inner {
  position: relative;
  z-index: 2;
}

.page-about .breadcrumbs {
  margin-bottom: clamp(28px, 5vw, 52px);
}

.page-about .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 52px);
  align-items: end;
}

.page-about .hero-copy h1 {
  margin: 12px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(42px, 8.6vw, 88px);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.01em;
  color: var(--frost);
  max-width: 12em;
}

.page-about .hero-lead {
  max-width: 34em;
  font-size: clamp(16px, 2.1vw, 18px);
  line-height: 1.85;
  color: var(--cold);
  margin: 0;
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .hero-index {
  border: 1px solid var(--grid);
  border-left: 2px solid var(--cyan);
  background: rgba(14, 33, 53, 0.84);
  padding: clamp(18px, 3vw, 26px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

.page-about .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 16px 0 22px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-about .hero-stats > div {
  background: var(--deck);
  padding: 14px 12px;
}

.page-about .hero-stats dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--dim);
  text-transform: uppercase;
}

.page-about .hero-stats dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 500;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-about .hero-jump {
  display: grid;
  gap: 7px;
  border-top: 1px solid var(--grid);
  padding-top: 16px;
}

.page-about .hero-jump a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--dim);
  text-decoration: none;
  padding: 3px 0;
  transition: color 0.15s var(--ease);
}

.page-about .hero-jump a::before {
  content: "";
  width: 10px;
  height: 1px;
  background: var(--cyan);
  flex: none;
}

.page-about .hero-jump a:hover,
.page-about .hero-jump a:focus-visible {
  color: var(--cyan);
}

.page-about .about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  margin-top: clamp(40px, 6vw, 72px);
}

.page-about .about-toc {
  align-self: start;
}

.page-about .about-toc .toc {
  list-style: none;
  margin: 14px 0 28px;
  padding: 0 0 0 0;
  border-left: 1px solid var(--grid);
}

.page-about .about-toc .toc li {
  margin: 0;
}

.page-about .toc-link {
  display: block;
  padding: 9px 0 9px 16px;
  margin-left: -1px;
  border-left: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--dim);
  text-decoration: none;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
}

.page-about .toc-link:hover,
.page-about .toc-link:focus-visible,
.page-about .toc-link.is-active {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-about .toc-card {
  border: 1px solid var(--grid);
  background: var(--hull);
  padding: 18px;
}

.page-about .toc-card p {
  margin: 10px 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cold);
}

.page-about .toc-card-link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 169, 63, 0.5);
}

.page-about .about-flow {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 44px;
  padding-left: 28px;
}

.page-about .about-flow::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--grid) 22%, var(--grid) 78%, rgba(245, 169, 63, 0.8) 100%);
}

.page-about .timeline-item {
  position: relative;
  padding: clamp(20px, 4vw, 32px);
  background: var(--deck);
  border: 1px solid var(--grid);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.18);
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 30px;
  width: 9px;
  height: 9px;
  background: var(--ink);
  border: 1px solid var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(25, 211, 230, 0.1);
}

.page-about .timeline-item:nth-of-type(even)::before {
  border-color: var(--amber);
  box-shadow: 0 0 0 4px rgba(245, 169, 63, 0.1);
}

.page-about .chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
}

.page-about .chapter-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 6px;
  flex: none;
}

.page-about .chapter-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--frost);
}

.page-about .timeline-item > p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--cold);
}

.page-about .fact-list {
  list-style: none;
  margin: 20px 0 18px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-about .fact-list li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px;
  background: var(--hull);
}

.page-about .fact-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-about .fact-list strong {
  display: block;
  font-size: 15px;
  color: var(--frost);
  margin-bottom: 4px;
}

.page-about .fact-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--dim);
}

.page-about .inline-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--dim);
}

.page-about .inline-links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 211, 230, 0.4);
}

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

.page-about .team-meter {
  margin: 22px 0 18px;
  padding: 18px;
  border: 1px solid var(--grid);
  background: rgba(8, 20, 34, 0.4);
  display: grid;
  gap: 12px;
}

.page-about .meter-row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) 48px;
  gap: 12px;
  align-items: center;
}

.page-about .meter-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--dim);
}

.page-about .meter {
  display: block;
  height: 6px;
  background: var(--hull);
  overflow: hidden;
}

.page-about .meter-fill {
  display: block;
  height: 100%;
  background: var(--cyan);
}

.page-about .meter-fill--amber {
  background: var(--amber);
}

.page-about .meter-value {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--frost);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.page-about .media-frame {
  margin: 22px 0 0;
  border: 1px solid var(--grid);
  background: var(--ink);
}

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

.page-about .media-frame--wide img {
  aspect-ratio: 3 / 2;
}

.page-about .media-frame--square img {
  aspect-ratio: 1 / 1;
}

.page-about .media-frame figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--grid);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--dim);
}

.page-about .data-figure {
  max-width: 560px;
}

.page-about .segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
  margin: 24px 0 0;
  padding: 0;
}

.page-about .segmented button {
  flex: 1 1 auto;
  min-width: 150px;
  appearance: none;
  border: 0;
  background: var(--hull);
  color: var(--dim);
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
}

.page-about .segmented button[aria-selected="true"] {
  background: var(--deck);
  color: var(--cyan);
  box-shadow: inset 0 -2px 0 var(--cyan);
}

.page-about .table-wrap {
  margin-top: 14px;
  overflow-x: auto;
  border: 1px solid var(--grid);
  background: rgba(8, 20, 34, 0.35);
}

.page-about .table-wrap table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 13px;
}

.page-about .table-wrap caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.page-about .table-wrap th,
.page-about .table-wrap td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--grid);
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
}

.page-about .table-wrap th {
  background: var(--hull);
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.page-about .table-wrap td {
  color: var(--cold);
}

.page-about .table-wrap td:first-child {
  font-family: var(--font-mono);
  color: var(--cyan);
  white-space: nowrap;
}

.page-about .table-wrap tr:last-child td {
  border-bottom: 0;
}

.page-about .version-list {
  margin: 22px 0 18px;
  border-bottom: 1px solid var(--grid);
}

.page-about .ver-item {
  border-top: 1px solid var(--grid);
}

.page-about .ver-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
}

.page-about .ver-item summary::-webkit-details-marker {
  display: none;
}

.page-about .ver-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--amber);
}

.page-about .ver-item[open] summary::after {
  content: "−";
}

.page-about .ver-tag {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--amber);
  border: 1px solid rgba(245, 169, 63, 0.45);
  padding: 2px 7px;
}

.page-about .ver-title {
  font-size: 15px;
  color: var(--frost);
}

.page-about .ver-body {
  padding: 0 0 16px 0;
}

.page-about .ver-body ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.page-about .ver-body li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--dim);
}

.page-about .ver-body li::marker {
  color: var(--teal);
}

.page-about .about-cta {
  margin-top: 12px;
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--grid);
  background:
    linear-gradient(135deg, rgba(25, 211, 230, 0.09) 0%, rgba(25, 211, 230, 0) 52%),
    var(--deck);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.24);
}

.page-about .about-cta h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(28px, 4.4vw, 44px);
  font-weight: 700;
  line-height: 1.08;
  color: var(--frost);
}

.page-about .about-cta p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cold);
}

.page-about .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

@media (min-width: 680px) {
  .page-about .hero-index {
    padding: 26px;
  }

  .page-about .about-layout {
    gap: 48px;
  }
}

@media (min-width: 1024px) {
  .page-about .hero-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(300px, 0.82fr);
    gap: clamp(36px, 5vw, 64px);
  }

  .page-about .about-layout {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-toc {
    position: sticky;
    top: 104px;
  }

  .page-about .about-flow {
    padding-left: 0;
    gap: 56px;
  }

  .page-about .about-flow::before {
    left: 50%;
    top: 0;
    bottom: 0;
  }

  .page-about .timeline-item {
    width: calc(50% - 44px);
  }

  .page-about .timeline-item:nth-of-type(odd) {
    margin-right: auto;
  }

  .page-about .timeline-item:nth-of-type(even) {
    margin-left: auto;
  }

  .page-about .timeline-item::before {
    top: 34px;
  }

  .page-about .timeline-item:nth-of-type(odd)::before {
    left: auto;
    right: -48px;
  }

  .page-about .timeline-item:nth-of-type(even)::before {
    left: -48px;
    right: auto;
  }

  .page-about .about-cta {
    margin-top: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .hero-jump a,
  .page-about .toc-link,
  .page-about .segmented button {
    transition: none;
  }
}
<<<END>>>