.page-about {
  padding-top: clamp(92px, 13vw, 132px);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-about .section {
  scroll-margin-top: 124px;
}

/* ---------- Hero ---------- */

.page-about .ab-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 34px) 0 clamp(44px, 6vw, 76px);
}

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

.page-about .ab-hero-digit {
  position: absolute;
  top: clamp(-56px, -7vw, -18px);
  right: clamp(-24px, -2vw, 16px);
  z-index: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(190px, 33vw, 420px);
  line-height: 0.72;
  color: var(--gold-soft);
  opacity: 0.62;
  pointer-events: none;
  user-select: none;
}

.page-about .ab-hero-title {
  position: relative;
  z-index: 1;
  margin: clamp(14px, 2vw, 20px) 0 clamp(18px, 3vw, 26px);
  max-width: 15ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(31px, 5.4vw, 68px);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.page-about .ab-hero-lead {
  position: relative;
  z-index: 1;
  margin: 0 0 clamp(28px, 4vw, 44px);
  max-width: 38em;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--ink-mid);
}

.page-about .ab-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(14px, 2.2vw, 26px);
  margin: 0;
  padding: 0;
  max-width: 780px;
  list-style: none;
}

.page-about .ab-stat {
  padding-top: 12px;
  border-top: 2px solid var(--ink);
}

.page-about .ab-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 27px);
  line-height: 1.25;
  color: var(--ink);
  background: linear-gradient(transparent 60%, var(--gold-soft) 60%);
}

.page-about .ab-stat-label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--graphite);
  letter-spacing: 0.03em;
}

.page-about .ab-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(26px, 3.6vw, 42px);
}

.page-about .ab-jump a {
  display: inline-block;
  padding: 7px 15px;
  border: 1px solid var(--hair);
  border-radius: var(--r-pill);
  background: var(--card);
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-mid);
  text-decoration: none;
  transition: border-color var(--t) var(--ease), background-color var(--t) var(--ease),
    color var(--t) var(--ease);
}

.page-about .ab-jump a:hover,
.page-about .ab-jump a:focus-visible {
  border-color: var(--gold);
  background: var(--gold-soft);
  color: var(--ink);
}

/* ---------- Who ---------- */

.page-about .ab-who-grid {
  display: grid;
  gap: clamp(30px, 5vw, 60px);
}

.page-about .ab-who-copy p {
  max-width: 38em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink-mid);
  margin: 0 0 18px;
}

.page-about .ab-who-copy .section-title {
  margin: 12px 0 clamp(18px, 2.4vw, 26px);
  max-width: 20ch;
}

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

.page-about .ab-note {
  display: inline-block;
  margin-top: 8px;
  padding-bottom: 3px;
  transform: rotate(-2deg);
  transform-origin: left center;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--brick);
  border-bottom: 1px dashed var(--brick);
}

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

.page-about .ab-who-figure .media-caption,
.page-about .ab-process-figure .media-caption,
.page-about .ab-partner-figure .media-caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- Timeline ---------- */

.page-about .ab-track {
  position: relative;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-track::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 12px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), var(--hair));
}

.page-about .ab-node {
  position: relative;
  padding-left: clamp(30px, 4.4vw, 48px);
  padding-bottom: clamp(26px, 4vw, 44px);
}

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

.page-about .ab-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px var(--paper), 0 0 0 5px var(--hair);
}

.page-about .ab-node-year {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--brick);
}

.page-about .ab-node-title {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.35;
  color: var(--ink);
}

.page-about .ab-node-text {
  margin: 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-mid);
}

/* ---------- Fold (details) ---------- */

.page-about .ab-fold {
  margin-top: 12px;
  padding-left: 14px;
  border-left: 2px solid var(--gold-soft);
}

.page-about .ab-fold summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-mist);
}

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

.page-about .ab-fold summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--gold);
}

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

.page-about .ab-fold summary:hover,
.page-about .ab-fold summary:focus-visible {
  color: var(--ink);
}

.page-about .ab-fold p {
  margin: 12px 0 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-mid);
  animation: ab-fade 180ms var(--ease) both;
}

.page-about .ab-fold--wide {
  margin-top: clamp(20px, 3vw, 30px);
  padding-left: 18px;
  border-left-width: 3px;
}

@keyframes ab-fade {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Team ---------- */

.page-about .ab-team-grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
  margin-top: clamp(28px, 4vw, 44px);
}

.page-about .ab-team-card {
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--card);
  border: 1px solid var(--hair);
  border-radius: var(--r-lg);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-about .ab-team-card:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
}

.page-about .ab-team-name {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  color: var(--ink);
}

.page-about .ab-team-card p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-mid);
}

.page-about .ab-network {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(24px, 3.4vw, 38px);
}

.page-about .ab-network-block {
  padding: clamp(20px, 2.6vw, 28px);
  border-radius: var(--r-md);
  background: var(--ink);
  color: var(--paper);
}

.page-about .ab-network-block--gold {
  background: var(--gold-soft);
  color: var(--ink);
}

.page-about .ab-network-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 1.9vw, 21px);
}

.page-about .ab-network-block p {
  margin: 0;
  max-width: 38em;
  font-size: 15.5px;
  line-height: 1.85;
}

/* ---------- Process ---------- */

.page-about .ab-process-figure {
  margin: clamp(28px, 4vw, 44px) 0 clamp(28px, 4vw, 44px);
}

.page-about .ab-steps {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-step {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--card);
  border: 1px solid var(--hair);
  border-radius: var(--r-md);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease),
    box-shadow var(--t) var(--ease);
}

.page-about .ab-step:hover,
.page-about .ab-step:focus-within {
  border-color: var(--gold);
  transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(14, 42, 71, 0.08);
}

.page-about .ab-step-name {
  margin: 14px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 1.9vw, 20px);
  color: var(--ink);
}

.page-about .ab-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-mid);
}

/* ---------- Cycle ---------- */

.page-about .ab-cycle-grid {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
}

.page-about .ab-cycle-lead {
  margin: 12px 0 clamp(24px, 3.4vw, 36px);
  max-width: 38em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink-mid);
}

.page-about .ab-cycles {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-cycle {
  display: grid;
  gap: 10px;
  padding: clamp(16px, 2.2vw, 22px);
  background: var(--card);
  border: 1px solid var(--hair);
  border-left: 4px solid var(--brick);
  border-radius: var(--r-sm);
}

.page-about .ab-cycle-num {
  display: inline-block;
  align-self: start;
  padding: 7px 12px;
  border-radius: var(--r-sm);
  background: var(--gold-soft);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  text-align: center;
  white-space: nowrap;
}

.page-about .ab-cycle-name {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16.5px;
  color: var(--ink);
}

.page-about .ab-cycle p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-mid);
}

.page-about .ab-cycle-tip {
  margin: clamp(22px, 3vw, 32px) 0 0;
  max-width: 38em;
  padding: 16px 18px;
  border-left: 3px solid var(--gold);
  background: linear-gradient(90deg, rgba(240, 220, 180, 0.5), rgba(240, 220, 180, 0));
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-mid);
}

.page-about .ab-cycle-tip a,
.page-about .ab-cta-tail a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 3px;
}

.page-about .ab-cycle-tip a:hover,
.page-about .ab-cta-tail a:hover {
  color: var(--brick);
}

.page-about .ab-cycle-card {
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--ink-deep);
  border-radius: var(--r-lg);
  color: var(--paper);
}

.page-about .ab-cycle-card h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--gold);
}

.page-about .ab-check {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-check li {
  position: relative;
  padding: 9px 0 9px 22px;
  font-size: 15px;
  line-height: 1.7;
  border-bottom: 1px solid rgba(207, 199, 184, 0.18);
}

.page-about .ab-check li:last-child {
  border-bottom: none;
}

.page-about .ab-check li::before {
  content: "01";
  position: absolute;
  left: 0;
  top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-about .ab-check li:nth-child(2)::before {
  content: "02";
}
.page-about .ab-check li:nth-child(3)::before {
  content: "03";
}
.page-about .ab-check li:nth-child(4)::before {
  content: "04";
}

.page-about .ab-cycle-note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--graphite);
}

/* ---------- Partners ---------- */

.page-about .ab-partner-grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(26px, 3.6vw, 42px);
}

.page-about .ab-partner-copy p {
  margin: 0 0 18px;
  max-width: 38em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink-mid);
}

.page-about .ab-cert {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-cert li {
  position: relative;
  padding: 10px 0 10px 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-mid);
  border-bottom: 1px solid var(--hair);
}

.page-about .ab-cert li:last-child {
  border-bottom: none;
}

.page-about .ab-cert-year {
  display: inline-block;
  margin-right: 10px;
  padding: 2px 8px;
  border-radius: var(--r-pill);
  background: var(--gold-soft);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
}

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

/* ---------- CTA ---------- */

.page-about .ab-cta {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  padding: clamp(26px, 4vw, 46px);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: var(--paper);
}

.page-about .ab-cta-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.25;
  color: var(--paper);
}

.page-about .ab-cta-text p {
  margin: 0;
  max-width: 38em;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(245, 241, 232, 0.82);
}

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

.page-about .ab-cta .btn--ghost {
  color: var(--gold-soft);
  border-color: rgba(212, 162, 76, 0.55);
}

.page-about .ab-cta .btn--ghost:hover,
.page-about .ab-cta .btn--ghost:focus-visible {
  background: rgba(212, 162, 76, 0.14);
  border-color: var(--gold);
  color: var(--paper);
}

.page-about .ab-cta-tail {
  margin: 20px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--graphite);
}

/* ---------- Responsive ---------- */

@media (min-width: 640px) {
  .page-about .ab-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .ab-cycle {
    grid-template-columns: minmax(112px, 132px) 1fr;
    align-items: start;
    gap: 20px;
  }
}

@media (min-width: 780px) {
  .page-about .ab-team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-about .ab-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 48px;
    right: calc(-1 * clamp(18px, 3vw, 28px));
    width: clamp(18px, 3vw, 28px);
    height: 2px;
    background: var(--gold);
    opacity: 0.75;
  }
}

@media (min-width: 900px) {
  .page-about .ab-who-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-about .ab-cycle-grid {
    grid-template-columns: 1.55fr 0.85fr;
    align-items: start;
  }

  .page-about .ab-cycle-aside {
    position: sticky;
    top: 128px;
  }

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

  .page-about .ab-cta {
    grid-template-columns: 1.4fr auto;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-team-card,
  .page-about .ab-step,
  .page-about .ab-jump a {
    transition: none;
  }

  .page-about .ab-team-card:hover,
  .page-about .ab-step:hover,
  .page-about .ab-step:focus-within {
    transform: none;
  }

  .page-about .ab-fold p {
    animation: none;
  }
}