.page-about {
  background: var(--ink);
  color: var(--paper);
  --about-sidenav: 320px;
  --about-track: rgba(53, 224, 208, 0.34);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(16px, 2.4vw, 28px) 0 clamp(36px, 5vw, 76px);
  border-bottom: 1px solid var(--line-soft);
  background: var(--ink);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 43%;
  background: var(--indigo);
  clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
}

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

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  margin-top: clamp(18px, 2.6vw, 34px);
}

.page-about .about-hero__title {
  margin: 12px 0 20px;
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: 0.01em;
}

.page-about .about-hero__intro {
  max-width: 34em;
}

.page-about .about-stat__num {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 6px 0 8px;
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: clamp(24px, 2.8vw, 36px);
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat__unit {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .about-stat--key .about-stat__num {
  color: var(--coral);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  align-content: start;
}

.page-about .about-stat {
  padding: clamp(12px, 1.5vw, 18px);
}

.page-about .about-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.6vw, 48px);
  padding: clamp(30px, 4.4vw, 60px) 0 clamp(46px, 6vw, 96px);
}

.page-about .about-section {
  padding-bottom: clamp(28px, 4.2vw, 56px);
  margin-bottom: clamp(28px, 4.2vw, 56px);
  border-bottom: 1px solid var(--line-faint);
}

.page-about .about-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-about .about-section__head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: clamp(16px, 2.2vw, 26px);
}

.page-about .about-section__title {
  font-size: clamp(22px, 2.7vw, 36px);
  font-weight: 300;
  line-height: 1.24;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .about-section__body {
  display: flow-root;
}

.page-about .about-section__body > .prose {
  max-width: 36em;
  margin-bottom: 1.1em;
}

.page-about .about-lens__item p {
  max-width: 36em;
}

.page-about .about-lens {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.2vw, 26px);
  margin: clamp(20px, 2.8vw, 30px) 0 clamp(20px, 3vw, 44px);
}

.page-about .about-lens__item {
  padding-left: 16px;
  border-left: 2px solid var(--line);
}

.page-about .about-lens__item:nth-child(2) {
  border-left-color: var(--cyan);
}

.page-about .about-lens__title {
  margin: 8px 0 8px;
  font-size: clamp(17px, 1.9vw, 21px);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.page-about .about-fig {
  margin: clamp(20px, 3vw, 34px) 0;
}

.page-about .about-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--line);
  box-shadow: var(--hard);
  filter: saturate(0.7) contrast(1.14) brightness(0.92);
}

.page-about .about-fig figcaption {
  margin-top: 10px;
}

.page-about .about-fig--float figcaption {
  margin-top: 8px;
}

.page-about .about-axes {
  margin: clamp(18px, 2.4vw, 28px) 0;
  padding: clamp(12px, 1.8vw, 20px) clamp(10px, 1.6vw, 18px) 6px;
  border: 1px solid var(--line-faint);
  background: var(--deep);
}

.page-about .about-axes svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-about .about-axes figcaption {
  margin-top: 12px;
}

.page-about .about-roles {
  margin-top: clamp(18px, 2.4vw, 28px);
}

.page-about .about-role {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px 18px;
  padding: clamp(14px, 1.8vw, 20px) 0;
  border-top: 1px solid var(--line-faint);
}

.page-about .about-role:last-child {
  border-bottom: 1px solid var(--line-faint);
}

.page-about .about-role__num {
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-role__name {
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.page-about .about-role__main p {
  max-width: 44em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}

.page-about .about-role__when {
  margin-top: 4px;
}

.page-about .about-timeline-wrap {
  margin: clamp(20px, 2.8vw, 32px) 0;
  padding: clamp(14px, 2vw, 26px) clamp(14px, 2vw, 26px) clamp(18px, 2.2vw, 28px);
  background: var(--indigo);
  border: 2px solid var(--line);
  box-shadow: var(--hard);
}

.page-about .about-timeline {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(200px, 78%);
  gap: 0;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  list-style: none;
  margin: 0;
  padding: 28px 0 8px;
  border-top: 2px solid var(--line);
  scrollbar-width: thin;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 clamp(12px, 1.6vw, 20px) 6px 0;
  border-right: 1px solid var(--line-faint);
}

.page-about .about-timeline__item:last-child {
  border-right: 0;
  padding-right: 0;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  top: -24px;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--indigo);
  border: 2px solid var(--cyan);
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  scroll-margin-top: 90px;
}

.page-about .about-timeline__label {
  margin: 10px 0 6px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-about .about-timeline__text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper);
  opacity: 0.86;
}

.page-about .about-timeline__item {
  scroll-margin-top: 90px;
}

.page-about .about-rules {
  margin-top: clamp(18px, 2.4vw, 28px);
}

.page-about .about-rule {
  margin-bottom: var(--gap);
  background: var(--deep);
  border: 2px solid var(--line);
  box-shadow: var(--hard);
}

.page-about .about-rule--risk {
  border-left: 6px solid var(--wine);
}

.page-about .about-rule__summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: clamp(12px, 1.6vw, 18px);
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--paper);
}

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

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

.page-about .about-rule[open] .about-rule__summary {
  border-bottom: 1px solid var(--line-faint);
}

.page-about .about-rule[open] .about-rule__summary::after {
  content: "−";
}

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

.page-about .about-rule__body {
  padding: clamp(14px, 1.8vw, 20px) clamp(12px, 1.6vw, 18px);
}

.page-about .about-rule__body .prose {
  max-width: 44em;
  font-size: 15px;
}

.page-about .about-index {
  padding: clamp(14px, 2vw, 20px);
  background: var(--deep);
  border: 2px solid var(--line);
  box-shadow: var(--hard);
  margin-bottom: var(--gap);
}

.page-about .about-index__list {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 8px;
}

.page-about .about-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 13px;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  transition: border-color 200ms ease, color 200ms ease, background-color 200ms ease;
}

.page-about .about-index__link .nav-num {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-about .about-index__link[data-active] {
  border-left-color: var(--cyan);
  background: rgba(53, 224, 208, 0.08);
  color: var(--cyan);
}

.page-about .about-index__link[data-active] .nav-num {
  color: var(--cyan);
}

.page-about .about-years {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 6px;
}

.page-about .about-year {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 10px;
  white-space: nowrap;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: color 200ms ease, border-color 200ms ease;
}

.page-about .about-year .num {
  font-size: 13px;
  color: var(--paper);
}

.page-about .about-year:hover,
.page-about .about-year:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-about .about-year:hover .num,
.page-about .about-year:focus-visible .num {
  color: var(--cyan);
}

.page-about .about-exit {
  padding: clamp(34px, 4.6vw, 64px) 0 clamp(44px, 5.6vw, 84px);
  border-top: 2px solid var(--line);
  background: var(--deep);
}

.page-about .about-exit__title {
  margin: 12px 0 clamp(20px, 2.8vw, 30px);
  font-size: clamp(22px, 2.6vw, 34px);
  font-weight: 300;
  line-height: 1.24;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .about-exit__links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-about .about-exit__link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(14px, 1.8vw, 20px);
  background: var(--ink);
  border: 2px solid var(--line);
  box-shadow: var(--hard);
  color: var(--paper);
  text-decoration: none;
  transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}

.page-about .about-exit__link:hover,
.page-about .about-exit__link:focus-visible {
  transform: translate(-3px, -3px);
  border-color: var(--cyan);
  box-shadow: var(--hard-lift);
}

.page-about .about-exit__link-title {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-about .about-exit__link--wide .about-exit__link-title {
  color: var(--coral);
}

.page-about .about-exit__link-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

@media (min-width: 760px) {
  .page-about .about-lens {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(22px, 3vw, 40px);
  }

  .page-about .about-lens__item:nth-child(2) {
    transform: translateY(22px);
  }

  .page-about .about-fig--float {
    float: right;
    width: 44%;
    margin: 6px 0 22px 30px;
  }

  .page-about .about-fig--band img {
    object-fit: cover;
    aspect-ratio: 2.6 / 1;
  }

  .page-about .about-role {
    grid-template-columns: 72px minmax(0, 1fr) 190px;
    align-items: baseline;
  }

  .page-about .about-role__when {
    margin-top: 0;
  }

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

  .page-about .about-exit__link--wide {
    grid-column: span 3;
  }
}

@media (min-width: 940px) {
  .page-about .about-body {
    grid-template-columns: minmax(0, 66fr) minmax(0, 34fr);
    gap: clamp(30px, 4.6vw, 76px);
    align-items: start;
  }

  .page-about .about-body__side {
    position: sticky;
    top: 26px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 58fr) minmax(0, 42fr);
    align-items: start;
  }

  .page-about .about-index__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-index__link {
    width: 100%;
    justify-content: flex-start;
    border-left-width: 3px;
  }

  .page-about .about-years {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
    margin-left: 6px;
    border-left: 2px solid var(--line);
  }

  .page-about .about-year {
    position: relative;
    border: 0;
    padding: 7px 0 7px 18px;
    margin-left: -2px;
    border-left: 2px solid transparent;
  }

  .page-about .about-year::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 8px;
    height: 2px;
    background: var(--line);
    transform: translateY(-50%);
  }

  .page-about .about-year:hover,
  .page-about .about-year:focus-visible {
    border-left-color: var(--cyan);
  }

  .page-about .about-timeline {
    grid-auto-columns: minmax(0, 1fr);
    overflow: visible;
  }

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

  .page-about .about-exit__link--wide {
    grid-column: span 3;
  }
}

@media (max-width: 759px) {
  .page-about .about-hero {
    background: linear-gradient(180deg, var(--ink) 0 52%, var(--indigo) 52% 100%);
  }

  .page-about .about-hero::before {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index__link,
  .page-about .about-year,
  .page-about .about-exit__link {
    transition: none;
  }

  .page-about .about-exit__link:hover,
  .page-about .about-exit__link:focus-visible {
    transform: none;
  }
}
<<<END>>>