.page-about {
  --ab-line: 1px solid var(--edge);
  --ab-radius: var(--radius-cut);
  background: var(--void);
  color: var(--ice);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin: 0;
}

/* ---------- Hero ---------- */
.page-about .ab-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 40px) 0 clamp(34px, 6vw, 76px);
  border-bottom: var(--ab-line);
}

.page-about .ab-hero__glow {
  position: absolute;
  right: -24%;
  top: -22%;
  width: 74%;
  height: 150%;
  background:
    linear-gradient(155deg, rgba(143, 107, 255, 0.3), rgba(37, 244, 212, 0.12) 52%, transparent 76%);
  transform: skewY(-6deg);
  pointer-events: none;
}

.page-about .ab-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .ab-hero .eyebrow {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-about .ab-hero h1 {
  font-size: clamp(34px, 9vw, 88px);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.02;
  margin-top: 16px;
  max-width: 15em;
}

.page-about .ab-hero__lede {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--ice);
  opacity: 0.82;
}

.page-about .ab-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px 18px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: var(--ab-line);
}

.page-about .ab-fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .ab-fact__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: -0.02em;
  line-height: 1;
}

.page-about .ab-fact__label {
  font-size: 13px;
  color: var(--steel);
  letter-spacing: 0.06em;
}

/* ---------- Chapter index ---------- */
.page-about .ab-index {
  border-bottom: var(--ab-line);
  background: var(--deck);
}

.page-about .ab-index__list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 12px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .ab-index__list li {
  flex: 0 0 auto;
}

.page-about .ab-index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--edge);
  border-radius: 2px 14px 2px 2px;
  color: var(--ice);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.24s var(--ease), color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-about .ab-index a .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--purple);
  letter-spacing: 0.1em;
}

.page-about .ab-index a:hover,
.page-about .ab-index a:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(37, 244, 212, 0.08);
  outline: none;
}

/* ---------- Sections ---------- */
.page-about .ab-section {
  position: relative;
  overflow: hidden;
  padding: clamp(38px, 7vw, 92px) 0;
  border-bottom: var(--ab-line);
}

.page-about .ab-section--narrow .wrap {
  max-width: 1080px;
}

.page-about .ab-section__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 200;
  font-size: clamp(56px, 15vw, 148px);
  line-height: 0.78;
  letter-spacing: -0.06em;
  color: transparent;
  -webkit-text-stroke: 1px var(--edge);
  margin-bottom: 10px;
  user-select: none;
}

.page-about .ab-section h2 {
  font-size: clamp(22px, 4.4vw, 40px);
  font-weight: 700;
  max-width: 22em;
}

.page-about .ab-lede {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--steel);
}

.page-about .ab-cols {
  display: grid;
  gap: clamp(20px, 4vw, 40px);
  margin-top: 24px;
}

.page-about .ab-prose p {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.82;
  color: var(--ice);
  opacity: 0.86;
}

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

/* ---------- Note block ---------- */
.page-about .ab-note {
  align-self: start;
  padding: 20px 22px 24px;
  border: 1px solid var(--edge);
  border-left: 3px solid var(--amber);
  border-radius: var(--ab-radius);
  background: linear-gradient(150deg, rgba(255, 176, 32, 0.12), transparent 62%), var(--deck);
}

.page-about .ab-note__mark {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin: 0 0 10px;
  text-transform: uppercase;
}

.page-about .ab-note__text {
  margin: 0;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.6;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ice);
}

/* ---------- Team roles ---------- */
.page-about .ab-roles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-about .ab-role {
  position: relative;
  padding: 20px 20px 22px;
  border: 1px solid var(--edge);
  border-radius: var(--ab-radius);
  background: var(--deck);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-about .ab-role__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  margin: 0 0 8px;
}

.page-about .ab-role h3 {
  font-size: clamp(18px, 2.4vw, 22px);
  margin-bottom: 8px;
}

.page-about .ab-role p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--steel);
}

.page-about .ab-role--cyan {
  background: linear-gradient(155deg, rgba(37, 244, 212, 0.16), transparent 58%), var(--deck);
}

.page-about .ab-role--cyan .ab-role__meta {
  color: var(--cyan);
}

.page-about .ab-role--purple {
  background: linear-gradient(155deg, rgba(143, 107, 255, 0.2), transparent 58%), var(--deck);
}

.page-about .ab-role--purple .ab-role__meta {
  color: var(--purple);
}

.page-about .ab-role--amber {
  background: linear-gradient(155deg, rgba(255, 176, 32, 0.16), transparent 58%), var(--deck);
}

.page-about .ab-role--amber .ab-role__meta {
  color: var(--amber);
}

.page-about .ab-role--lime {
  background: linear-gradient(155deg, rgba(182, 255, 59, 0.14), transparent 58%), var(--deck);
}

.page-about .ab-role--lime .ab-role__meta {
  color: var(--lime);
}

.page-about .ab-role:hover,
.page-about .ab-role:focus-within,
.page-about .ab-role:focus {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: var(--shadow-lift);
  outline: none;
}

/* ---------- Figures ---------- */
.page-about .ab-figure {
  margin: 30px 0 0;
  border: 1px solid var(--edge);
  border-radius: var(--ab-radius);
  overflow: hidden;
  background: var(--deck);
}

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

.page-about .ab-figure figcaption {
  padding: 11px 16px;
  border-top: 1px solid var(--edge);
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- Steps ---------- */
.page-about .ab-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-about .ab-step {
  padding-top: 14px;
  border-top: 2px solid var(--edge);
}

.page-about .ab-step:first-child {
  border-top-color: var(--amber);
}

.page-about .ab-step__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  margin: 0 0 8px;
  color: var(--cyan);
}

.page-about .ab-step h3 {
  font-size: clamp(17px, 2vw, 19px);
  margin-bottom: 8px;
}

.page-about .ab-step p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--steel);
}

.page-about .ab-result {
  margin-top: 26px;
  padding: 18px 20px;
  border: 1px dashed var(--edge);
  border-radius: var(--ab-radius);
  background: rgba(37, 244, 212, 0.05);
}

.page-about .ab-result__text {
  margin: 0;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.78;
  color: var(--ice);
  opacity: 0.88;
}

/* ---------- Timeline ---------- */
.page-about .ab-track {
  position: relative;
  list-style: none;
  margin: 30px 0 0;
  padding: 0 0 0 28px;
}

.page-about .ab-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--purple) 58%, var(--edge));
}

.page-about .ab-track__item {
  position: relative;
  margin-bottom: 10px;
}

.page-about .ab-track__item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 17px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--void);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(37, 244, 212, 0.12);
}

.page-about .ab-track__summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 14px;
  border: 1px solid transparent;
  border-radius: 2px 16px 2px 2px;
  cursor: pointer;
  list-style: none;
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

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

.page-about .ab-track__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan);
  line-height: 1;
}

.page-about .ab-track__item details[open] > .ab-track__summary::after {
  content: "–";
  color: var(--amber);
}

.page-about .ab-track__summary:hover,
.page-about .ab-track__summary:focus-visible {
  border-color: var(--edge);
  background: var(--deck);
  outline: none;
}

.page-about .ab-track__item details[open] > .ab-track__summary {
  border-color: var(--edge);
  background: var(--deck);
}

.page-about .ab-track__year {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-about .ab-track__title {
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 600;
  color: var(--ice);
}

.page-about .ab-track__body {
  margin: 10px 0 6px;
  padding: 0 14px;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--steel);
}

/* ---------- Newcomer links ---------- */
.page-about .ab-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--edge);
  border-radius: var(--ab-radius);
  background: linear-gradient(160deg, rgba(143, 107, 255, 0.16), transparent 62%), var(--deck);
}

.page-about .ab-links__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--purple);
  margin: 0 0 4px;
  text-transform: uppercase;
}

.page-about .ab-links .btn {
  width: 100%;
  text-align: center;
}

/* ---------- Principles ---------- */
.page-about .ab-principles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 28px;
}

.page-about .ab-principle {
  position: relative;
  padding: 22px 20px 24px;
  border: 1px solid var(--edge);
  border-radius: var(--ab-radius);
  background: linear-gradient(160deg, rgba(143, 107, 255, 0.14), transparent 60%), var(--deck);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-about .ab-principle__mark {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin: 0 0 10px;
}

.page-about .ab-principle h3 {
  font-size: clamp(18px, 2.4vw, 22px);
  margin-bottom: 10px;
}

.page-about .ab-principle p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--steel);
}

.page-about .ab-principle:hover,
.page-about .ab-principle:focus-visible {
  transform: translateY(-4px);
  border-color: var(--amber);
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- CTA ---------- */
.page-about .ab-cta {
  padding: clamp(38px, 6vw, 76px) 0 clamp(42px, 7vw, 84px);
  background:
    linear-gradient(118deg, rgba(37, 244, 212, 0.12), transparent 54%),
    linear-gradient(300deg, rgba(143, 107, 255, 0.14), transparent 58%),
    var(--void);
}

.page-about .ab-cta h2 {
  font-size: clamp(22px, 4.2vw, 38px);
  max-width: 24em;
}

.page-about .ab-cta__text {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--steel);
}

.page-about .ab-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* ---------- Desktop ---------- */
@media (min-width: 760px) {
  .page-about .ab-cols {
    grid-template-columns: 1.25fr 0.85fr;
    align-items: start;
  }

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

  .page-about .ab-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px 22px;
  }

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

  .page-about .ab-links .btn {
    width: auto;
  }

  .page-about .ab-figure {
    margin-top: 36px;
  }
}

@media (min-width: 1040px) {
  .page-about .ab-roles {
    grid-template-columns: repeat(12, 1fr);
    gap: 18px;
  }

  .page-about .ab-role:nth-child(1) {
    grid-column: 1 / span 7;
  }

  .page-about .ab-role:nth-child(2) {
    grid-column: 8 / span 5;
    margin-top: 26px;
  }

  .page-about .ab-role:nth-child(3) {
    grid-column: 1 / span 5;
  }

  .page-about .ab-role:nth-child(4) {
    grid-column: 6 / span 7;
    margin-top: -14px;
  }

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

  .page-about .ab-hero__lede {
    margin-top: 26px;
  }

  .page-about .ab-index__list {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-role,
  .page-about .ab-principle,
  .page-about .ab-index a,
  .page-about .ab-track__summary {
    transition: none;
  }

  .page-about .ab-role:hover,
  .page-about .ab-role:focus,
  .page-about .ab-principle:hover,
  .page-about .ab-principle:focus-visible {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>