.page-about {
  --ab-pad: clamp(1.25rem, 4vw, 3rem);
  --ab-flow: clamp(1.25rem, 3vw, 2rem);
  --ab-line-dark: rgba(245, 242, 232, .14);
  --ab-line-light: rgba(18, 20, 23, .14);
  background: var(--ink-900);
  color: var(--paper);
}

.page-about .about-hero {
  padding: clamp(5rem, 10vw, 8rem) 0 clamp(2rem, 5vw, 3.5rem);
  background:
    radial-gradient(115% 85% at 8% 0%, rgba(201, 162, 39, .16), transparent 58%),
    radial-gradient(95% 85% at 100% 6%, rgba(18, 42, 66, .95), transparent 62%),
    var(--ink-900);
}

.page-about .about-crumb {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
  font-size: .84rem;
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: center;
}

.page-about .about-hero__figure {
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--ab-line-dark);
  background: var(--ink-800);
  box-shadow: var(--shadow-2);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 4.6vw, 3.1rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  margin: .55rem 0 0;
  color: var(--paper);
}

.page-about .about-hero__lede {
  margin: 1rem 0 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.5vw, 1.08rem);
  line-height: 1.78;
  color: rgba(245, 242, 232, .8);
}

.page-about .about-hero__lede2 {
  margin: .75rem 0 0;
  max-width: 44ch;
  font-size: .95rem;
  line-height: 1.7;
  color: var(--silver);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.5rem;
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(2rem, 5vw, 3rem) 0 0;
  padding: 0;
  background: var(--ab-line-dark);
  border: 1px solid var(--ab-line-dark);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .about-stat {
  background: var(--ink-900);
  padding: 1rem 1.1rem 1.15rem;
}

.page-about .about-stat dt {
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--silver);
  margin-bottom: .35rem;
}

.page-about .about-stat dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: .3rem;
}

.page-about .about-stat__n {
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  line-height: 1;
  color: var(--gold-lt);
}

.page-about .about-stat__u {
  font-size: .82rem;
  color: rgba(245, 242, 232, .66);
}

.page-about .about-shell {
  display: grid;
  gap: clamp(1.25rem, 3.5vw, 2.5rem);
  padding-top: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

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

.page-about .about-side__title {
  margin: 0 0 .6rem;
  font-size: .74rem;
  letter-spacing: .2em;
  color: var(--silver);
}

.page-about .about-side__list {
  list-style: none;
  margin: 0;
  padding: 0 0 .4rem;
  display: flex;
  gap: .45rem;
  overflow-x: auto;
}

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

.page-about .toc-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .5rem .85rem;
  border: 1px solid var(--ab-line-dark);
  border-radius: 999px;
  font-size: .85rem;
  color: var(--paper);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .toc-link .toc-num {
  font-family: var(--font-num);
  color: var(--gold);
  font-size: .85rem;
}

.page-about .toc-link:hover,
.page-about .toc-link:focus-visible {
  border-color: var(--gold);
  background: rgba(201, 162, 39, .12);
}

.page-about .about-side__note {
  margin: .75rem 0 0;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--silver);
}

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

.page-about .about-panel {
  position: relative;
  margin: 0 0 var(--ab-flow);
  padding: var(--ab-pad);
  border-radius: var(--radius-l);
  border: 1px solid var(--ab-line-dark);
  background: var(--ink-800);
  color: rgba(245, 242, 232, .82);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-about .about-panel--paper {
  background: var(--paper);
  border-color: var(--ab-line-light);
  color: rgba(18, 20, 23, .78);
}

.page-about .about-panel__head {
  display: grid;
  gap: .3rem;
  margin-bottom: clamp(1.5rem, 3.5vw, 2.25rem);
}

.page-about .about-panel__head .index-num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  line-height: .92;
  letter-spacing: -.04em;
  color: var(--gold);
}

.page-about .about-panel--paper .index-num {
  display: inline-block;
  color: var(--ink-900);
  padding-bottom: .3rem;
  border-bottom: 3px solid var(--gold);
}

.page-about .about-panel h2 {
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  line-height: 1.3;
  letter-spacing: -.01em;
  margin: .5rem 0 0;
  color: var(--paper);
}

.page-about .about-panel--paper h2 {
  color: var(--ink-900);
}

.page-about .about-panel__lede {
  margin: .7rem 0 0;
  max-width: 58ch;
  font-size: .97rem;
  line-height: 1.8;
}

.page-about .about-panel p {
  margin: 0;
  line-height: 1.75;
}

.page-about .about-panel h3 {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.12rem);
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 .35rem;
  color: var(--gold-lt);
}

.page-about .about-panel--paper h3 {
  color: var(--ink-900);
}

.page-about .evo-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .evo-list::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(201, 162, 39, .06));
}

.page-about .evo-item {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 1rem;
  padding-bottom: clamp(1.35rem, 3vw, 2rem);
}

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

.page-about .evo-num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid rgba(201, 162, 39, .55);
  font-family: var(--font-num);
  font-size: 1rem;
  color: var(--gold-lt);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .evo-item:hover .evo-num {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-900);
  transform: translateY(-2px);
}

.page-about .evo-era {
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--silver);
  margin-bottom: .3rem;
}

.page-about .evo-body {
  padding-top: .1rem;
}

.page-about .evo-tags {
  margin-top: .7rem;
}

.page-about .block-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(.7rem, 1.6vw, 1rem);
}

.page-about .content-block {
  grid-column: span 12;
  padding: clamp(1rem, 2.4vw, 1.4rem);
  background: var(--ink-900);
  border: 1px solid var(--ab-line-dark);
  color: rgba(245, 242, 232, .8);
  min-width: 0;
  transition: background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .content-block:hover {
  background: var(--ink-800);
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
}

.page-about .content-block--a { border-radius: 24px 24px 6px 24px; }
.page-about .content-block--b { border-radius: 6px 24px 24px 24px; }
.page-about .content-block--c { border-radius: 24px 6px 24px 24px; }
.page-about .content-block--d { border-radius: 24px 24px 24px 6px; }
.page-about .content-block--e { border-radius: 18px 24px 6px 24px; }
.page-about .content-block--f { border-radius: 24px 6px 24px 18px; }
.page-about .content-block--g { border-radius: 6px 18px 24px 24px; }

.page-about .content-block__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  line-height: 1;
  color: var(--gold);
  margin-bottom: .55rem;
}

.page-about .content-block h3 {
  color: var(--paper);
  margin-bottom: .45rem;
}

.page-about .content-block p {
  font-size: .92rem;
  line-height: 1.75;
}

.page-about .version-block {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

.page-about .version-figure,
.page-about .team-figure {
  margin: 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--ab-line-dark);
  background: var(--ink-900);
}

.page-about .team-figure {
  border-color: var(--ab-line-light);
  background: var(--white);
}

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

.page-about .version-figure img {
  aspect-ratio: 16 / 9;
}

.page-about .team-figure img {
  aspect-ratio: 3 / 2;
}

.page-about .version-caption,
.page-about .team-caption {
  padding: .6rem .85rem .7rem;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--silver);
  border-top: 1px solid var(--ab-line-dark);
}

.page-about .team-caption {
  color: rgba(18, 20, 23, .6);
  border-top-color: var(--ab-line-light);
}

.page-about .version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-about .version-item {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: .85rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid var(--ab-line-dark);
}

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

.page-about .version-key {
  font-family: var(--font-num);
  font-size: .92rem;
  color: var(--gold-lt);
  padding-top: .1rem;
}

.page-about .version-desc {
  font-size: .92rem;
  line-height: 1.72;
}

.page-about .cadence {
  list-style: none;
  margin: clamp(1.5rem, 3.5vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-about .cadence-item {
  border-top: 2px solid var(--gold);
  padding-top: .7rem;
}

.page-about .cadence-key {
  display: block;
  font-family: var(--font-num);
  font-size: .9rem;
  color: var(--gold-lt);
  margin-bottom: .35rem;
}

.page-about .cadence-item p {
  font-size: .89rem;
  line-height: 1.7;
  color: rgba(245, 242, 232, .74);
}

.page-about .team-block {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

.page-about .team-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .2rem;
}

.page-about .team-item {
  display: grid;
  grid-template-columns: 5.2rem minmax(0, 1fr);
  gap: .85rem;
  padding: .8rem 0;
  border-top: 1px solid var(--ab-line-light);
}

.page-about .team-role {
  font-weight: 700;
  font-size: .9rem;
  color: var(--ink-900);
}

.page-about .team-desc {
  font-size: .9rem;
  line-height: 1.72;
}

.page-about .coverage {
  list-style: none;
  margin: clamp(1.5rem, 3.5vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ab-line-light);
  border: 1px solid var(--ab-line-light);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .coverage-item {
  background: var(--white);
  padding: .95rem 1.05rem;
}

.page-about .coverage-num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  line-height: 1.1;
  color: var(--ink-900);
}

.page-about .coverage-label {
  display: block;
  margin-top: .2rem;
  font-size: .8rem;
  color: rgba(18, 20, 23, .62);
}

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

.page-about .ledger-row {
  display: grid;
  grid-template-columns: 4.2rem minmax(0, 1fr);
  gap: 1rem;
  align-items: baseline;
  padding: .95rem 0;
  border-top: 1px solid var(--ab-line-dark);
}

.page-about .ledger-row:last-child {
  border-bottom: 1px solid var(--ab-line-dark);
}

.page-about .ledger-num {
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 3.6vw, 2rem);
  line-height: 1;
  color: var(--gold);
}

.page-about .ledger-text {
  font-size: .92rem;
  line-height: 1.75;
}

.page-about .partner {
  margin-top: clamp(1.5rem, 3.5vw, 2rem);
  padding: clamp(1rem, 2.6vw, 1.5rem);
  border-radius: var(--radius-m);
  border: 1px dashed rgba(201, 162, 39, .45);
  background: rgba(10, 26, 42, .55);
}

.page-about .partner h3 {
  color: var(--paper);
  margin-bottom: .5rem;
}

.page-about .partner p {
  font-size: .92rem;
  line-height: 1.76;
  color: rgba(245, 242, 232, .78);
}

.page-about .partner-tags {
  margin-top: .85rem;
}

.page-about .partner-link {
  margin-top: .9rem;
  font-size: .88rem;
}

.page-about .partner-link a {
  color: var(--gold-lt);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 207, 122, .5);
  padding-bottom: 1px;
}

.page-about .partner-link a:hover,
.page-about .partner-link a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-about .about-cta {
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-radius: var(--radius-l);
  border: 1px solid var(--ab-line-dark);
  background:
    radial-gradient(110% 130% at 100% 0%, rgba(201, 162, 39, .2), transparent 62%),
    var(--ink-800);
}

.page-about .about-cta h2 {
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 3.2vw, 1.9rem);
  line-height: 1.32;
  margin: 0;
  color: var(--paper);
}

.page-about .about-cta p {
  margin: .7rem 0 0;
  max-width: 56ch;
  font-size: .93rem;
  line-height: 1.78;
  color: rgba(245, 242, 232, .78);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.4rem;
}

@media (min-width: 640px) {
  .page-about .cadence {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .content-block {
    grid-column: span 6;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-about .about-shell {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: start;
  }

  .page-about .about-side {
    order: 2;
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-about .about-body {
    order: 1;
  }

  .page-about .about-side__list {
    flex-direction: column;
    gap: .15rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .toc-link {
    border: 0;
    border-left: 2px solid var(--ab-line-dark);
    border-radius: 0;
    padding: .55rem 0 .55rem .8rem;
    white-space: normal;
    font-size: .88rem;
    width: 100%;
    background: transparent;
  }

  .page-about .toc-link:hover,
  .page-about .toc-link:focus-visible {
    border-left-color: var(--gold);
    background: rgba(201, 162, 39, .08);
  }

  .page-about .version-block {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .team-block {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .content-block--a { grid-column: span 4; }
  .page-about .content-block--b { grid-column: span 8; }
  .page-about .content-block--c { grid-column: span 3; }
  .page-about .content-block--d { grid-column: span 5; }
  .page-about .content-block--e { grid-column: span 4; }
  .page-about .content-block--f { grid-column: span 4; }
  .page-about .content-block--g { grid-column: span 8; }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .content-block,
  .page-about .evo-num,
  .page-about .toc-link {
    transition: none;
  }

  .page-about .content-block:hover,
  .page-about .evo-item:hover .evo-num {
    transform: none;
  }
}
<<<END>>>