.page-about {
  --about-glow-lake: rgba(22, 119, 184, .18);
  --about-glow-dusk: rgba(91, 75, 138, .18);
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-crumb {
  padding-top: 14px;
}

.page-about .crumb-sep {
  margin: 0 8px;
  color: var(--ink-mute);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 22px 0 46px;
  isolation: isolate;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -24% -18% 18% -18%;
  background:
    radial-gradient(46% 58% at 10% 4%, var(--about-glow-lake), transparent 72%),
    radial-gradient(44% 60% at 90% 10%, var(--about-glow-dusk), transparent 74%);
  z-index: -2;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(203, 215, 230, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(203, 215, 230, .5) 1px, transparent 1px);
  background-size: 92px 92px;
  -webkit-mask-image: radial-gradient(70% 60% at 30% 30%, #000, transparent 78%);
  mask-image: radial-gradient(70% 60% at 30% 30%, #000, transparent 78%);
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero__eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: .76rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--lake);
}

.page-about .about-hero__title {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.3rem, 9.4vw, 5.2rem);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-about .about-hero__lede {
  max-width: 60ch;
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.4vw, 1.1rem);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-about .about-hero__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 18px;
  margin: 34px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--blueprint);
  list-style: none;
}

.page-about .meta-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 5.6vw, 2.1rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-about .meta-num em {
  font-style: normal;
  font-size: .58em;
  color: var(--ink-mute);
  margin-left: 2px;
}

.page-about .meta-label {
  display: block;
  margin-top: 6px;
  font-size: .82rem;
  line-height: 1.5;
  color: var(--ink-mute);
}

/* ---------- Chapter rail ---------- */
.page-about .chapter-rail {
  position: sticky;
  top: 78px;
  z-index: 6;
  padding: 10px 0;
  background: linear-gradient(to bottom, rgba(247, 242, 232, .97), rgba(247, 242, 232, .84));
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--blueprint);
  border-bottom: 1px solid var(--blueprint);
}

.page-about .chapter-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -webkit-mask-image: linear-gradient(to right, #000 88%, transparent);
  mask-image: linear-gradient(to right, #000 88%, transparent);
}

.page-about .chapter-rail__list::-webkit-scrollbar {
  display: none;
}

.page-about .chapter-rail a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 15px;
  border: 1px solid var(--blueprint);
  border-radius: var(--radius-pill);
  background: var(--card);
  color: var(--ink-soft);
  font-family: var(--font-module);
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform .25s ease, border-color .25s ease, color .25s ease;
}

.page-about .chapter-rail a span {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  color: var(--lake);
}

.page-about .chapter-rail a:hover {
  border-color: var(--lake);
  color: var(--lake);
  transform: translateY(-1px);
}

/* ---------- Shared type ---------- */
.page-about .about-h2 {
  margin: 6px 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 5vw, 2.6rem);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-about .about-p {
  margin: 0 0 1.1em;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-about .eyebrow--onDark {
  color: var(--saffron);
}

.page-about .about-h2--onDark {
  color: #F5F1E7;
}

/* ---------- Origin split ---------- */
.page-about .about-split {
  display: grid;
  gap: 34px;
}

.page-about .about-split__main {
  min-width: 0;
}

.page-about .milestone-index {
  align-self: start;
  padding: 24px 22px;
  background: var(--card);
  border: 1px solid var(--blueprint);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.page-about .milestone-index h3 {
  margin: 0 0 12px;
  font-family: var(--font-module);
  font-size: .84rem;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--ink-mute);
}

.page-about .milestone-index ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .milestone-index li + li {
  border-top: 1px dashed var(--blueprint);
}

.page-about .milestone-index a {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 13px 0;
  text-decoration: none;
  color: var(--ink);
}

.page-about .mi-year {
  font-family: var(--font-mono);
  font-size: .84rem;
  font-weight: 700;
  color: var(--lake);
}

.page-about .mi-label {
  font-family: var(--font-module);
  font-size: .9rem;
  line-height: 1.55;
  transition: color .22s ease;
}

.page-about .milestone-index a:hover .mi-label {
  color: var(--lake);
}

/* ---------- Timeline ---------- */
.page-about .about-figure {
  margin: 28px 0 8px;
}

.page-about .timeline {
  position: relative;
  margin: 34px 0 0;
  padding: 0 0 0 30px;
  list-style: none;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--lake), var(--dusk) 55%, var(--blueprint));
}

.page-about .tl-item {
  position: relative;
  padding-bottom: 26px;
}

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

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--lake);
  box-shadow: 0 0 0 4px rgba(22, 119, 184, .12);
}

.page-about .tl-item--jade::before {
  border-color: var(--jade);
  box-shadow: 0 0 0 4px rgba(47, 163, 154, .14);
}

.page-about .tl-item--flame::before {
  border-color: var(--flame);
  box-shadow: 0 0 0 4px rgba(228, 87, 46, .14);
}

.page-about .tl-card {
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--blueprint);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.page-about .tl-year {
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--lake);
}

.page-about .tl-card h3 {
  margin: 6px 0 8px;
  font-family: var(--font-module);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-about .tl-card p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- Team ---------- */
.page-about .team-rings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 22px;
  justify-items: center;
  margin: 30px 0 8px;
}

.page-about .ring {
  --ring-p: 46%;
  --ring-c: var(--lake);
  display: grid;
  place-items: center;
  width: 100%;
  max-width: 172px;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: conic-gradient(var(--ring-c) var(--ring-p), var(--paper-2) 0);
  transition: transform .3s ease;
}

.page-about .ring:hover {
  transform: translateY(-3px);
}

.page-about .ring--content {
  --ring-p: 46%;
  --ring-c: var(--lake);
}

.page-about .ring--tech {
  --ring-p: 32%;
  --ring-c: var(--dusk);
}

.page-about .ring--service {
  --ring-p: 22%;
  --ring-c: var(--flame);
}

.page-about .ring__inner {
  display: grid;
  place-content: center;
  gap: 3px;
  width: 74%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--blueprint);
  text-align: center;
}

.page-about .ring__inner b {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
}

.page-about .ring__inner small {
  font-family: var(--font-module);
  font-size: .74rem;
  color: var(--ink-mute);
}

.page-about .team-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 28px;
}

.page-about .fact {
  padding: 20px 20px 18px;
  background: var(--paper-2);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--lake);
}

.page-about .fact h3 {
  margin: 0 0 8px;
  font-family: var(--font-module);
  font-size: .98rem;
  font-weight: 700;
  color: var(--ink);
}

.page-about .fact p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- Audience ---------- */
.page-about .audience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 30px;
}

.page-about .audience-card {
  position: relative;
  padding: 22px 22px 24px;
  background: var(--card);
  border: 1px solid var(--blueprint);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease;
}

.page-about .audience-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--accent, var(--lake));
}

.page-about .audience-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent, var(--lake));
}

.page-about .audience-card--lake {
  --accent: var(--lake);
}

.page-about .audience-card--dusk {
  --accent: var(--dusk);
}

.page-about .audience-card--jade {
  --accent: var(--jade);
}

.page-about .audience-card--flame {
  --accent: var(--flame);
}

.page-about .audience-card--saffron {
  --accent: var(--saffron);
}

.page-about .audience-idx {
  display: block;
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--accent, var(--lake));
}

.page-about .audience-card h3 {
  margin: 8px 0 8px;
  font-family: var(--font-module);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
}

.page-about .audience-card p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- Trust panel ---------- */
.page-about .trust-panel {
  --panel-ink: #F5F1E7;
  --panel-mute: rgba(245, 241, 231, .72);
  position: relative;
  overflow: hidden;
  padding: 30px 22px 32px;
  border-radius: var(--radius-xl);
  background: linear-gradient(158deg, #1D2433 0%, #171A1F 52%, #26203C 100%);
  color: var(--panel-ink);
}

.page-about .trust-panel::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto auto;
  width: 70%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 119, 184, .38), transparent 68%);
  pointer-events: none;
}

.page-about .trust-panel::after {
  content: "";
  position: absolute;
  inset: auto auto -34% -14%;
  width: 62%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91, 75, 138, .42), transparent 70%);
  pointer-events: none;
}

.page-about .trust-panel__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-about .trust-lead {
  margin: 0 0 20px;
  font-size: .98rem;
  line-height: 1.85;
  color: var(--panel-mute);
}

.page-about .trust-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(203, 215, 230, .22);
}

.page-about .trust-list li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(203, 215, 230, .16);
}

.page-about .trust-key {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--saffron);
}

.page-about .trust-val {
  font-size: .92rem;
  line-height: 1.7;
  color: var(--panel-ink);
}

.page-about .trust-foot {
  margin: 20px 0 0;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--panel-mute);
}

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

/* ---------- Ecosystem ---------- */
.page-about .about-split--eco {
  align-items: center;
}

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

.page-about .eco-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 14px;
  margin: 22px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--blueprint);
  list-style: none;
}

.page-about .eco-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--dusk);
}

.page-about .eco-num em {
  font-style: normal;
  font-size: .55em;
  color: var(--ink-mute);
}

.page-about .eco-label {
  display: block;
  margin-top: 6px;
  font-size: .82rem;
  color: var(--ink-mute);
}

.page-about .eco-honor {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: var(--paper-2);
  border-left: 3px solid var(--saffron);
  font-size: .9rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- Next ---------- */
.page-about .about-next__inner {
  padding: 26px 0 0;
  border-top: 1px solid var(--blueprint);
}

.page-about .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-about .next-link {
  display: inline-flex;
  align-items: center;
  padding: 11px 20px;
  border-radius: var(--radius-pill);
  background: var(--lake);
  color: #F7F2E8;
  font-family: var(--font-module);
  font-size: .9rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform .25s ease, background-color .25s ease;
}

.page-about .next-link:hover {
  transform: translateY(-2px);
  background: var(--dusk);
}

.page-about .next-link--ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--blueprint);
}

.page-about .next-link--ghost:hover {
  background: var(--paper-2);
  color: var(--ink);
}

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

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

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

@media (min-width: 980px) {
  .page-about .chapter-rail {
    top: 92px;
  }

  .page-about .about-hero {
    padding: 34px 0 64px;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-split--eco {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    align-items: center;
  }

  .page-about .trust-panel {
    padding: 44px 40px;
  }

  .page-about .trust-panel__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 44px;
    align-items: center;
  }

  .page-about .tl-card {
    padding: 22px 26px;
  }

  .page-about .about-figure {
    margin-top: 34px;
  }
}

@media (min-width: 1100px) {
  .page-about .audience-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-about .audience-card:nth-child(1),
  .page-about .audience-card:nth-child(2) {
    grid-column: span 3;
  }

  .page-about .audience-card:nth-child(3),
  .page-about .audience-card:nth-child(4),
  .page-about .audience-card:nth-child(5) {
    grid-column: span 2;
  }
}
<<<END>>>