.page-about {
  --ab-rail-w: 236px;
  --ab-line-soft: rgba(14, 70, 82, 0.85);
  background: var(--abyss);
  color: var(--mist);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-about .ab-top {
  padding-top: 22px;
}

.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--aqua-gray);
}

.page-about .breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-about .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--grid-line);
}

.page-about .breadcrumb-link {
  color: var(--aqua-gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .breadcrumb-link:hover,
.page-about .breadcrumb-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* Hero */
.page-about .ab-hero {
  position: relative;
  padding: clamp(34px, 6vw, 76px) 0 clamp(40px, 6vw, 84px);
  overflow: hidden;
  isolation: isolate;
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(49, 242, 228, 0.16), transparent 58%),
    radial-gradient(90% 80% at 96% 6%, rgba(142, 124, 255, 0.14), transparent 62%),
    linear-gradient(180deg, var(--teal) 0%, var(--abyss) 92%);
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    repeating-linear-gradient(90deg, rgba(14, 70, 82, 0.55) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(14, 70, 82, 0.4) 0 1px, transparent 1px 96px);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.35) 70%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.35) 70%, transparent 100%);
}

.page-about .ab-hero-inner {
  position: relative;
  max-width: 1080px;
}

.page-about .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--cyan);
}

.page-about .ab-hero h1 {
  margin: 0 0 22px;
  max-width: 17em;
  font-size: clamp(30px, 5.4vw, 64px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.04em;
  color: var(--mist);
  text-wrap: balance;
}

.page-about .lede {
  margin: 0;
  max-width: 640px;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.75;
  color: var(--aqua-gray);
}

.page-about .ab-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(30px, 4vw, 46px) 0 0;
  padding: 1px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

.page-about .ab-stat {
  padding: 16px 14px 18px;
  background: rgba(6, 42, 51, 0.72);
}

.page-about .ab-stat dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--aqua-gray);
}

.page-about .ab-stat dd {
  margin: 6px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
}

.page-about .ab-stat-num {
  font-family: var(--font-num);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-about .ab-stat-unit {
  font-size: 12px;
  color: var(--aqua-gray);
  letter-spacing: 0.04em;
}

/* Shell */
.page-about .ab-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(48px, 8vw, 104px);
}

.page-about .ab-rail {
  display: none;
}

.page-about .ab-rail-title {
  margin: 0 0 14px;
  padding: 0 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--aqua-gray);
}

.page-about .ab-rail-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-about .ab-rail-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-left: 1px solid var(--grid-line);
  font-size: 14px;
  color: var(--aqua-gray);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .ab-rail-link:hover,
.page-about .ab-rail-link:focus-visible {
  color: var(--mist);
  border-left-color: var(--cyan);
  background: rgba(49, 242, 228, 0.06);
}

.page-about .ab-rail-idx {
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 600;
  color: var(--cyan);
  min-width: 20px;
}

.page-about .ab-rail-note {
  margin: 18px 0 0;
  padding: 0 12px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--aqua-gray);
  opacity: 0.8;
}

/* Sections */
.page-about .ab-sec {
  padding: clamp(30px, 4.5vw, 52px) 0 clamp(34px, 5vw, 60px);
  border-top: 1px solid var(--grid-line);
}

.page-about .ab-sec:first-child {
  border-top: 0;
  padding-top: clamp(14px, 2vw, 24px);
}

.page-about .ab-sec-idx {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--violet);
}

.page-about .ab-sec h2 {
  margin: 0 0 18px;
  font-size: clamp(23px, 3vw, 34px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.035em;
  color: var(--mist);
  text-wrap: balance;
}

.page-about .ab-sec-lede {
  margin: 0 0 26px;
  max-width: 620px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--aqua-gray);
}

.page-about .ab-copy p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

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

.page-about .ab-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
}

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

.page-about .ab-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--grid-line);
  background: linear-gradient(150deg, var(--teal) 0%, var(--abyss) 100%);
}

.page-about .ab-frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 22px;
  height: 22px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
  z-index: 1;
  pointer-events: none;
}

.page-about .ab-frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 10;
}

.page-about .ab-frame--tall img {
  aspect-ratio: 4 / 3;
}

.page-about .ab-frame--wide img {
  aspect-ratio: 16 / 9;
}

.page-about .media-caption {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--aqua-gray);
  transition: color var(--dur) var(--ease);
}

.page-about .ab-figure:hover .media-caption {
  color: var(--cyan);
}

/* Timeline */
.page-about .ab-timeline {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-node {
  position: relative;
  padding: 0 0 clamp(26px, 4vw, 42px) clamp(24px, 3vw, 38px);
}

.page-about .ab-node::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 0;
  width: 1px;
  background: var(--ab-line-soft);
}

.page-about .ab-node:last-child::before {
  bottom: auto;
  height: 40px;
}

.page-about .ab-node::after {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 11px;
  height: 11px;
  border: 1px solid var(--cyan);
  background: var(--abyss);
  transform: rotate(45deg);
  transition: background var(--dur) var(--ease);
}

.page-about .ab-node:hover::after {
  background: rgba(49, 242, 228, 0.35);
}

.page-about .ab-node-year {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-num);
  font-size: clamp(30px, 4.6vw, 52px);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: 0.01em;
  color: rgba(159, 201, 203, 0.4);
  transition: color var(--dur) var(--ease);
}

.page-about .ab-node:hover .ab-node-year {
  color: var(--lemon);
}

.page-about .ab-node h3 {
  margin: 6px 0 10px;
  font-size: clamp(18px, 2.1vw, 22px);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-about .ab-node p {
  margin: 0 0 14px;
  max-width: 640px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--aqua-gray);
}

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

.page-about .ab-figure--band {
  margin-top: 18px;
}

/* Panel & chips */
.page-about .ab-panel {
  border: 1px solid var(--grid-line);
  background: rgba(6, 42, 51, 0.6);
  padding: 18px 18px 20px;
}

.page-about .ab-panel .panel-head {
  margin-bottom: 14px;
}

.page-about .ab-panel .panel-title {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-about .ab-panel .panel-meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--aqua-gray);
}

.page-about .ab-ticks {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--aqua-gray);
}

.page-about .ab-ticks li {
  display: grid;
  gap: 6px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(14, 70, 82, 0.9);
}

.page-about .ab-ticks li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .tag {
  justify-self: start;
  display: inline-block;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 1px solid currentColor;
  line-height: 1.4;
}

.page-about .tag-cyan {
  color: var(--cyan);
}

.page-about .tag-lemon {
  color: var(--lemon);
}

.page-about .tag-violet {
  color: var(--violet);
}

/* Verify */
.page-about .ab-verify-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.page-about .ab-quote {
  position: relative;
  padding: 22px 20px 20px;
  background: linear-gradient(160deg, rgba(255, 107, 74, 0.14) 0%, rgba(6, 42, 51, 0.7) 62%);
  border: 1px solid rgba(255, 107, 74, 0.35);
}

.page-about .ab-quote p {
  margin: 0 0 14px;
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-about .ab-quote span {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--coral);
}

/* Tabs */
.page-about .ab-tabs {
  margin-bottom: clamp(24px, 3vw, 34px);
}

.page-about .ab-tabs .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
}

.page-about .ab-tabs .tab {
  appearance: none;
  cursor: pointer;
  padding: 9px 14px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--aqua-gray);
  background: rgba(6, 42, 51, 0.7);
  border: 1px solid var(--grid-line);
  border-radius: var(--radius);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .ab-tabs .tab:hover {
  color: var(--mist);
  border-color: rgba(49, 242, 228, 0.5);
}

.page-about .ab-tabs .tab[aria-selected="true"] {
  color: var(--abyss);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .ab-tabs .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-about .ab-tabs .tab-panel {
  padding: 18px 18px 20px;
  border-left: 2px solid var(--cyan);
  background: rgba(6, 42, 51, 0.55);
  animation: ab-slide-in var(--dur) var(--ease);
}

.page-about .ab-tabs .tab-panel p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--aqua-gray);
}

@keyframes ab-slide-in {
  from {
    opacity: 0;
    transform: translateX(8px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.page-about .ab-team-bottom {
  margin-top: clamp(26px, 3.5vw, 40px);
}

/* Principles & CTA */
.page-about .ab-sec--final {
  border-top: 1px solid var(--grid-line);
}

.page-about .ab-principles {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-about .ab-principle {
  padding: 20px 18px 22px;
  background: var(--abyss);
}

.page-about .ab-principle-idx {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about .ab-principle h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-about .ab-principle p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--aqua-gray);
}

.page-about .ab-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: clamp(22px, 3vw, 30px);
  background: linear-gradient(120deg, rgba(49, 242, 228, 0.1) 0%, rgba(6, 42, 51, 0.9) 55%, rgba(142, 124, 255, 0.12) 100%);
  border: 1px solid rgba(49, 242, 228, 0.32);
}

.page-about .ab-cta-text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--aqua-gray);
}

.page-about .ab-cta-title {
  margin-bottom: 8px !important;
  font-size: clamp(19px, 2.4vw, 24px) !important;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--mist) !important;
}

.page-about .ab-cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-about .ab-cta-actions .btn {
  border-radius: var(--radius);
}

.page-about .ab-cta-actions .link-inline {
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(49, 242, 228, 0.5);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease);
}

.page-about .ab-cta-actions .link-inline:hover,
.page-about .ab-cta-actions .link-inline:focus-visible {
  border-bottom-color: var(--mist);
}

/* Reveal */
.page-about .reveal-init {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 240ms var(--ease), transform 240ms var(--ease);
}

.page-about .reveal-init.is-revealed {
  opacity: 1;
  transform: none;
}

/* Breakpoints */
@media (min-width: 620px) {
  .page-about .ab-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .ab-cols {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-about .ab-cols--reverse {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-about .ab-cols--reverse .ab-copy {
    order: 2;
  }

  .page-about .ab-cols--reverse .ab-side,
  .page-about .ab-cols--reverse .ab-figure {
    order: 1;
  }

  .page-about .ab-verify-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: start;
  }

  .page-about .ab-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-about .ab-shell {
    grid-template-columns: var(--ab-rail-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
  }

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

  .page-about .ab-node {
    padding-left: clamp(30px, 3vw, 44px);
  }

  .page-about .ab-node:nth-child(even) {
    margin-left: clamp(10px, 2vw, 26px);
  }
}

@media (min-width: 1200px) {
  .page-about .ab-hero h1 {
    max-width: 15em;
  }
}

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

  .page-about .ab-tabs .tab-panel {
    animation: none;
  }
}
<<<END>>>