.page-about {
  --ab-soft: rgba(62, 110, 142, .38);
  --ab-soft-2: rgba(62, 110, 142, .22);
  --ab-gold-soft: rgba(242, 183, 5, .10);
  display: block;
  background: var(--ink);
  color: var(--cloud);
  padding-bottom: 88px;
  font-family: var(--font-sans);
}

.page-about a {
  color: inherit;
}

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

.page-about .ab-hero {
  position: relative;
  padding: 32px 0 56px;
  overflow: hidden;
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  top: -46%;
  right: -28%;
  width: min(720px, 92vw);
  aspect-ratio: 1 / 1;
  border: 2px solid rgba(242, 183, 5, .20);
  border-radius: 50%;
  pointer-events: none;
}

.page-about .ab-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: 28px;
}

.page-about .ab-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

.page-about .ab-h1 {
  margin: 6px 0 20px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 7.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.005em;
  color: var(--cloud);
  transform: skewX(-3deg);
  transform-origin: left bottom;
}

.page-about .ab-hero__text {
  max-width: 34em;
  margin: 0 0 16px;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(233, 239, 245, .88);
}

.page-about .ab-hero__sub {
  max-width: 34em;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .ab-board {
  border: 1px solid var(--hairline);
  border-radius: 2px;
  background: linear-gradient(158deg, rgba(18, 49, 78, .92), rgba(7, 26, 43, .92));
  box-shadow: var(--shadow);
  padding: 22px 22px 8px;
}

.page-about .ab-board__cap {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

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

.page-about .ab-board__list li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-top: 1px solid var(--ab-soft-2);
}

.page-about .ab-board__num {
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-about .ab-board__txt {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(233, 239, 245, .78);
}

/* ---------- Body grid ---------- */

.page-about .ab-body {
  padding-top: 40px;
}

.page-about .ab-rail {
  margin-bottom: 28px;
}

.page-about .ab-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-about .ab-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

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

.page-about .ab-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--ab-soft-2);
  font-size: 13px;
  line-height: 1.5;
  white-space: nowrap;
  text-decoration: none;
  color: rgba(233, 239, 245, .82);
  transition: border-color .22s var(--ease), background .22s var(--ease), color .22s var(--ease);
}

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

.page-about .ab-rail__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--gold);
}

.page-about .ab-flow {
  display: flex;
  flex-direction: column;
  gap: 72px;
  min-width: 0;
}

/* ---------- Sections ---------- */

.page-about .ab-sec {
  scroll-margin-top: 90px;
  min-width: 0;
}

.page-about .ab-sec__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-about .ab-sec__title {
  margin: 0 0 22px;
  font-size: clamp(23px, 3.8vw, 34px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--cloud);
}

.page-about .ab-prose p {
  max-width: 38em;
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(233, 239, 245, .84);
}

.page-about .ab-key {
  max-width: 38em;
  margin: 28px 0 0;
  padding: 16px 20px;
  border-left: 3px solid var(--gold);
  background: var(--ink-card);
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--cloud);
}

/* ---------- Figures ---------- */

.page-about .ab-shot {
  margin: 26px 0 34px;
  border: 1px solid var(--ab-soft-2);
  border-radius: 2px;
  overflow: hidden;
  background: var(--ink-deep);
}

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

.page-about .ab-shot figcaption,
.page-about .ab-shot .media-caption {
  padding: 12px 16px;
  border-top: 1px solid var(--ab-soft-2);
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

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

.page-about .ab-tl {
  list-style: none;
  margin: 8px 0 0;
  padding: 0 0 0 26px;
  position: relative;
}

.page-about .ab-tl::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 22px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(242, 183, 5, .12) 100%);
}

.page-about .ab-tl__item {
  position: relative;
  padding-bottom: 30px;
}

.page-about .ab-tl__item:last-child {
  padding-bottom: 4px;
}

.page-about .ab-tl__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 7px;
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border: 2px solid var(--gold);
  border-radius: 50%;
  background: var(--ink);
}

.page-about .ab-tl__year {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold-hi);
}

.page-about .ab-tl__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cloud);
}

.page-about .ab-tl__desc {
  max-width: 36em;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 239, 245, .72);
}

/* ---------- Steps ---------- */

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

.page-about .ab-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--ab-soft-2);
}

.page-about .ab-step:last-child {
  border-bottom: 1px solid var(--ab-soft-2);
}

.page-about .ab-step__no {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--gold);
}

.page-about .ab-step__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--cloud);
}

.page-about .ab-step__body p {
  max-width: 36em;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 239, 245, .76);
}

.page-about .ab-step--check {
  border-left: 3px solid var(--gold);
  padding-left: 16px;
  background: rgba(18, 49, 78, .5);
}

/* ---------- Roles (details) ---------- */

.page-about .ab-roles {
  margin-top: 6px;
}

.page-about .ab-role {
  border: 1px solid var(--ab-soft-2);
  background: rgba(18, 49, 78, .42);
  margin-bottom: 12px;
}

.page-about .ab-role > summary {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 14px;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  transition: background .22s var(--ease);
}

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

.page-about .ab-role > summary:hover,
.page-about .ab-role > summary:focus-visible {
  background: var(--ab-gold-soft);
}

.page-about .ab-role__no {
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-about .ab-role__name {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--cloud);
}

.page-about .ab-role__mark {
  justify-self: end;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(45deg);
  transition: transform .22s var(--ease);
}

.page-about .ab-role[open] .ab-role__mark {
  transform: rotate(225deg);
}

.page-about .ab-role__body {
  padding: 0 18px 18px 84px;
}

.page-about .ab-role__body p {
  max-width: 34em;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 239, 245, .76);
}

/* ---------- Stats ---------- */

.page-about .ab-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 26px;
  background: var(--ab-soft-2);
  border: 1px solid var(--ab-soft-2);
}

.page-about .ab-stat {
  background: var(--ink);
  padding: 20px 18px;
}

.page-about .ab-stat__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 26px;
  letter-spacing: .02em;
  line-height: 1.1;
  color: var(--gold);
}

.page-about .ab-stat__num small {
  font-size: 13px;
  letter-spacing: 0;
  color: var(--gold-hi);
}

.page-about .ab-stat__label {
  display: block;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- Next links ---------- */

.page-about .ab-next {
  margin-top: 72px;
  padding-top: 28px;
  border-top: 1px solid var(--ab-soft-2);
}

.page-about .ab-next__cap {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-about .ab-next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .ab-next__card {
  display: block;
  padding: 20px 20px 22px;
  border: 1px solid var(--ab-soft-2);
  border-left: 3px solid var(--gold);
  background: rgba(18, 49, 78, .38);
  text-decoration: none;
  transition: background .22s var(--ease), transform .22s var(--ease), border-color .22s var(--ease);
}

.page-about .ab-next__card:hover,
.page-about .ab-next__card:focus-visible {
  background: rgba(18, 49, 78, .78);
  border-color: var(--gold);
  transform: translateY(-2px);
}

.page-about .ab-next__t {
  display: block;
  margin-bottom: 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--cloud);
}

.page-about .ab-next__d {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- Motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-rail__link,
  .page-about .ab-role > summary,
  .page-about .ab-role__mark,
  .page-about .ab-next__card {
    transition: none;
  }
  .page-about .ab-next__card:hover,
  .page-about .ab-next__card:focus-visible {
    transform: none;
  }
}

/* ---------- Tablet ---------- */

@media (min-width: 640px) {
  .page-about .ab-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .ab-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .ab-role__body {
    padding-left: 88px;
  }
}

/* ---------- Desktop ---------- */

@media (min-width: 960px) {
  .page-about .ab-hero {
    padding: 56px 0 72px;
  }
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }
  .page-about .ab-board {
    padding: 26px 24px 12px;
    margin-top: 8px;
  }
}

@media (min-width: 1040px) {
  .page-about .ab-body {
    display: grid;
    grid-template-columns: 214px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
    padding-top: 56px;
  }
  .page-about .ab-rail {
    position: sticky;
    top: 96px;
    margin-bottom: 0;
  }
  .page-about .ab-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-about .ab-rail__item {
    flex: 1 1 auto;
  }
  .page-about .ab-rail__link {
    width: 100%;
    display: flex;
    align-items: baseline;
    border: 0;
    border-left: 2px solid var(--ab-soft-2);
    padding: 10px 14px;
    white-space: normal;
    color: rgba(233, 239, 245, .68);
  }
  .page-about .ab-rail__link:hover,
  .page-about .ab-rail__link:focus-visible {
    border-left-color: var(--gold);
    background: var(--ab-gold-soft);
    color: var(--cloud);
  }
  .page-about .ab-flow {
    gap: 88px;
  }
  .page-about .ab-sec__title {
    margin-bottom: 24px;
  }
  .page-about .ab-shot figcaption {
    padding: 14px 20px;
  }
  .page-about .ab-next {
    margin-top: 92px;
  }
}
<<<END>>>