.page-about {
  --ab-rail-w: clamp(148px, 15vw, 200px);
  --ab-sec-gap: clamp(48px, 6vw, 88px);
  display: block;
  background: var(--ink);
  color: var(--text);
}

.page-about .ab-hero {
  position: relative;
  padding-block: clamp(26px, 4vw, 52px) clamp(40px, 5.5vw, 80px);
  background:
    radial-gradient(130% 100% at 88% -10%, rgba(25, 245, 208, 0.16), transparent 62%),
    radial-gradient(90% 80% at 0% 110%, rgba(255, 178, 62, 0.09), transparent 60%),
    linear-gradient(180deg, var(--band) 0%, var(--ink) 72%);
  border-bottom: 1px solid var(--line);
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(234, 253, 250, 0.028) 0 1px,
    transparent 1px 5px
  );
}

.page-about .ab-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-about .ab-hero-main {
  min-width: 0;
}

.page-about .ab-hero-main .breadcrumb {
  margin-bottom: clamp(18px, 2.4vw, 28px);
}

.page-about .ab-hero-main .eyebrow {
  margin: 0 0 14px;
}

.page-about .ab-hero h1 {
  margin: 0 0 clamp(16px, 2vw, 24px);
  font-size: clamp(33px, 6vw, 74px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 18ch;
}

.page-about .ab-h1-mark {
  color: var(--cyan);
  position: relative;
  white-space: nowrap;
}

.page-about .ab-h1-mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 6px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  opacity: 0.35;
  border-radius: var(--pill);
}

.page-about .ab-lead {
  margin: 0 0 clamp(24px, 3vw, 36px);
  max-width: 54ch;
  font-size: clamp(15.5px, 1.9vw, 19px);
  line-height: 1.85;
  color: var(--text);
  opacity: 0.84;
}

.page-about .ab-hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 10px;
  max-width: 560px;
}

.page-about .ab-stat {
  position: relative;
  padding: 10px 12px 10px 14px;
  border-left: 2px solid var(--line);
  outline-offset: 6px;
  transition: border-color var(--dur) var(--ease);
}

.page-about .ab-stat:hover,
.page-about .ab-stat:focus-visible {
  border-left-color: var(--cyan);
}

.page-about .ab-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(25px, 3.4vw, 36px);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-about .ab-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-about .ab-stat-note {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 6;
  width: 200px;
  max-width: 240px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--amber-soft);
  font-size: 12px;
  line-height: 1.6;
  text-align: left;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
    visibility var(--dur) var(--ease);
  pointer-events: none;
}

.page-about .ab-stat:nth-child(even) .ab-stat-note {
  left: auto;
  right: 0;
}

.page-about .ab-stat:hover .ab-stat-note,
.page-about .ab-stat:focus-visible .ab-stat-note {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-about .ab-hero-media {
  min-width: 0;
}

.page-about .ab-figure {
  margin: 0;
}

.page-about .ab-figure .media-frame {
  border: 1px solid var(--line);
  border-radius: var(--r-soft);
  background: var(--panel);
  overflow: hidden;
  box-shadow: 0 24px 60px -32px rgba(25, 245, 208, 0.4);
}

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

.page-about .ab-figure figcaption {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  transform: rotate(-1.6deg);
  transform-origin: left top;
}

.page-about .ab-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  padding-block: clamp(36px, 5vw, 80px) clamp(56px, 7vw, 112px);
}

.page-about .ab-rail {
  min-width: 0;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-about .ab-rail-inner {
  min-width: 0;
}

.page-about .ab-rail-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-about .ab-rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-about .ab-rail-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  font-size: 13px;
  line-height: 1.4;
  color: var(--text);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-about .ab-rail-link:hover,
.page-about .ab-rail-link:focus-visible,
.page-about .ab-rail-link[aria-current="location"] {
  border-color: var(--cyan);
  color: var(--cyan-soft);
  background: rgba(25, 245, 208, 0.08);
}

.page-about .ab-rail-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
}

.page-about .ab-rail-note {
  display: none;
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.page-about .ab-content {
  min-width: 0;
}

.page-about .ab-sec {
  border-top: 1px solid var(--line);
  padding-top: clamp(20px, 2.6vw, 32px);
  margin-bottom: var(--ab-sec-gap);
}

.page-about .ab-sec:last-of-type {
  margin-bottom: clamp(36px, 5vw, 64px);
}

.page-about .ab-sec-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 10px;
  align-items: start;
  margin-bottom: clamp(18px, 2.4vw, 30px);
}

.page-about .ab-sec-num {
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-about .ab-sec-head h2 {
  grid-column: 2;
  margin: 0;
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1.16;
  letter-spacing: -0.012em;
  font-weight: 800;
}

.page-about .ab-sec-lead {
  grid-column: 2;
  margin: 0;
  max-width: 58ch;
  font-size: clamp(14.5px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-prose {
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.page-about .ab-prose p {
  margin: 0 0 1em;
}

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

.page-about .ab-prose strong {
  color: var(--cyan-soft);
  font-weight: 600;
}

.page-about .ab-checklist {
  list-style: none;
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-matrix);
  overflow: hidden;
}

.page-about .ab-checklist li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  align-items: baseline;
  padding: 12px 14px;
  min-height: 44px;
  background: var(--panel);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .ab-check-key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--amber);
  border: 1px solid rgba(255, 178, 62, 0.35);
  border-radius: var(--pill);
  padding: 2px 9px;
  white-space: nowrap;
}

.page-about .ab-flowline {
  display: none;
  width: 100%;
  height: 30px;
  margin: 0 0 4px;
}

.page-about .ab-flowline-track {
  stroke: var(--line);
  stroke-width: 2;
  stroke-dasharray: 6 8;
}

.page-about .ab-flowline-node {
  fill: var(--panel);
  stroke: var(--amber);
  stroke-width: 2;
}

.page-about .ab-flowline-node--end {
  fill: var(--cyan);
  stroke: var(--cyan);
}

.page-about .ab-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .ab-flow li {
  position: relative;
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-matrix);
  background: linear-gradient(160deg, var(--panel), var(--band));
  transition: border-color var(--dur) var(--ease);
}

.page-about .ab-flow li:hover {
  border-color: var(--cyan);
}

.page-about .ab-flow-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-about .ab-flow h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-about .ab-flow p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-figure--inset {
  margin-top: clamp(22px, 3vw, 34px);
}

.page-about .ab-team-figures {
  margin: clamp(22px, 3vw, 32px) 0 clamp(18px, 2.4vw, 26px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-matrix);
  overflow: hidden;
}

.page-about .ab-team-figure {
  padding: 14px 12px;
  background: var(--band);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .ab-team-num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1;
  color: var(--amber);
}

.page-about .ab-team-label {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--muted);
}

.page-about .ab-roles {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-about .ab-role {
  border: 1px solid var(--line);
  border-radius: var(--r-matrix);
  background: var(--panel);
  transition: border-color var(--dur) var(--ease);
}

.page-about .ab-role[open] {
  border-color: rgba(25, 245, 208, 0.5);
}

.page-about .ab-role summary {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.page-about .ab-role summary::-webkit-details-marker {
  display: none;
}

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

.page-about .ab-role[open] summary::after {
  content: "–";
}

.page-about .ab-role-body {
  padding: 0 14px 14px;
  border-top: 1px solid var(--line);
  margin-top: 2px;
  padding-top: 12px;
}

.page-about .ab-role-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .ab-timeline {
  list-style: none;
  margin: 0 0 0 8px;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-about .ab-tl-item {
  position: relative;
  padding: 0 0 clamp(20px, 2.6vw, 28px) 24px;
}

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

.page-about .ab-tl-item::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(25, 245, 208, 0.14);
}

.page-about .ab-tl-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin-bottom: 6px;
}

.page-about .ab-tl-item h3 {
  margin: 0 0 6px;
  font-size: clamp(16px, 1.9vw, 19px);
  font-weight: 700;
  line-height: 1.4;
}

.page-about .ab-tl-item p {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .ab-cta {
  position: relative;
  margin-top: clamp(40px, 6vw, 80px);
  padding: clamp(24px, 3.6vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(255, 178, 62, 0.14), transparent 60%),
    linear-gradient(150deg, var(--panel), var(--band));
  overflow: hidden;
}

.page-about .ab-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(90deg, rgba(33, 66, 76, 0.45) 1px, transparent 1px),
    linear-gradient(180deg, rgba(33, 66, 76, 0.45) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.35;
}

.page-about .ab-cta > * {
  position: relative;
  z-index: 1;
}

.page-about .ab-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-about .ab-cta p {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

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

@media (min-width: 620px) {
  .page-about .ab-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px 8px;
    max-width: none;
  }

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

@media (min-width: 760px) {
  .page-about .ab-flowline {
    display: block;
  }

  .page-about .ab-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 920px) {
  .page-about .ab-hero-inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }

  .page-about .ab-body {
    grid-template-columns: var(--ab-rail-w) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-about .ab-rail {
    border-top: 0;
    padding-top: 40px;
  }

  .page-about .ab-rail-inner {
    position: sticky;
    top: 128px;
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--line);
    padding-top: 16px;
  }

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

  .page-about .ab-rail-link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 9px 6px 9px 10px;
    font-size: 13.5px;
    min-height: 40px;
  }

  .page-about .ab-rail-link:hover,
  .page-about .ab-rail-link:focus-visible,
  .page-about .ab-rail-link[aria-current="location"] {
    border-left-color: var(--cyan);
    background: rgba(25, 245, 208, 0.06);
  }

  .page-about .ab-rail-note {
    display: block;
  }

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

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

  .page-about .ab-sec-head h2 {
    max-width: 20ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-stat,
  .page-about .ab-stat-note,
  .page-about .ab-rail-link,
  .page-about .ab-flow li,
  .page-about .ab-role {
    transition: none;
  }

  .page-about .ab-stat-note {
    transform: none;
  }

  .page-about .ab-figure figcaption {
    transform: none;
  }
}
<<<END>>>