.page-about {
  --paper-dim: #E6DFCE;
  background: var(--paper);
  color: var(--ink-900);
}

.page-about .about-intro {
  padding: 1.4rem 0 2.6rem;
}

.page-about .about-intro h1 {
  margin: .7rem 0 0;
  max-width: 17em;
  font-size: clamp(2rem, 5.4vw, 3.35rem);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-about .about-intro .lead {
  margin: 1.05rem 0 0;
  max-width: 34em;
  font-size: 1.05rem;
  line-height: 1.8;
}

.page-about .about-intro__facts {
  list-style: none;
  margin: 2.1rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--rule-strong);
  border-left: 1px solid var(--rule-strong);
}

.page-about .about-intro__facts li {
  padding: .95rem .9rem 1.05rem;
  border-right: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.page-about .about-intro__num {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.45rem, 4.2vw, 1.95rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-about .about-intro__facts li:nth-child(2) .about-intro__num,
.page-about .about-intro__facts li:nth-child(4) .about-intro__num {
  color: var(--amber);
}

.page-about .about-intro__cap {
  display: block;
  margin-top: .34rem;
  font-size: .8rem;
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--muted);
}

.page-about .about-shell {
  padding-bottom: 3.2rem;
}

.page-about .about-toc {
  display: none;
}

.page-about .about-flow {
  display: block;
}

.page-about .about-chapter {
  padding: 2.5rem 0 2.7rem;
  border-top: 1px solid var(--rule);
}

.page-about .about-chapter:first-child {
  border-top: 0;
  padding-top: 1.4rem;
}

.page-about .about-chapter > .sec-head {
  margin-bottom: 1.7rem;
}

.page-about .about-cols {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-cols .prose p:first-child {
  margin-top: 0;
}

.page-about .about-cols .prose p:last-child {
  margin-bottom: 0;
}

.page-about .about-cols .prose p {
  margin: 0 0 1rem;
}

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

.page-about .about-figure--band {
  margin-bottom: 1.6rem;
}

.page-about .about-figure .figure__frame {
  border: 1px solid var(--rule-strong);
  background: var(--ink-800);
}

.page-about .about-figure .figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-figure .figure__caption {
  margin-top: .7rem;
  font-size: .82rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-verify {
  margin-top: .4rem;
}

.page-about .about-timeline {
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.35rem;
}

.page-about .about-timeline__item {
  display: grid;
  grid-template-columns: 4.2rem minmax(0, 1fr);
  gap: .9rem;
}

.page-about .about-timeline__year {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: .95rem;
  letter-spacing: -0.01em;
  color: var(--ink-900);
  padding-top: .18rem;
  transition: color var(--t);
}

.page-about .about-timeline__body {
  position: relative;
  padding-left: 1.05rem;
  border-left: 1px solid var(--rule-strong);
}

.page-about .about-timeline__body::before {
  content: "";
  position: absolute;
  left: -3.5px;
  top: .42rem;
  width: 6px;
  height: 6px;
  background: var(--amber);
  transition: background var(--t), transform var(--t);
}

.page-about .about-timeline__body h3 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.4;
}

.page-about .about-timeline__body p {
  margin: .45rem 0 0;
  max-width: 34em;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-timeline__item:hover .about-timeline__year,
.page-about .about-timeline__item:focus-within .about-timeline__year {
  color: var(--amber);
}

.page-about .about-timeline__item:hover .about-timeline__body::before,
.page-about .about-timeline__item:focus-within .about-timeline__body::before {
  background: var(--cyan);
  transform: scale(1.5);
}

.page-about .about-roles {
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule-strong);
  border: 1px solid var(--rule-strong);
}

.page-about .about-roles__item {
  background: var(--paper);
  padding: 1.35rem 1.2rem 1.55rem;
  transition: background var(--t);
  outline-offset: -3px;
}

.page-about .about-roles__item:hover,
.page-about .about-roles__item:focus-within,
.page-about .about-roles__item:focus {
  background: var(--paper-dim);
}

.page-about .about-roles__count {
  margin: 0;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 2.1rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}

.page-about .about-roles__name {
  margin: .7rem 0 0;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .about-roles__desc {
  margin: .45rem 0 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-reasons {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-reason {
  border-top: 2px solid var(--ink-900);
  padding-top: 1rem;
}

.page-about .about-reason__idx {
  margin: 0;
  font-family: var(--font-num);
  font-size: .8rem;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-about .about-reason h3 {
  margin: .55rem 0 0;
  font-size: 1.16rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.page-about .about-reason p:last-child {
  margin: .5rem 0 0;
  max-width: 34em;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-next {
  background: var(--ink-900);
  color: var(--line-white);
  padding: 3rem 0 3.2rem;
}

.page-about .about-next h2 {
  margin: .6rem 0 0;
  max-width: 20em;
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--line-white);
}

.page-about .about-next p {
  margin: .9rem 0 0;
  max-width: 34em;
  font-size: .96rem;
  line-height: 1.8;
  color: rgba(247, 249, 244, .72);
}

.page-about .about-next__grid {
  display: grid;
  gap: 1.8rem;
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  align-content: start;
}

@media (min-width: 600px) {
  .page-about .about-intro__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.9rem;
  }
}

@media (min-width: 860px) {
  .page-about .about-next__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: center;
    gap: 3rem;
  }

  .page-about .about-next__actions {
    justify-content: flex-end;
  }

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

  .page-about .about-reasons {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }
}

@media (min-width: 960px) {
  .page-about .about-shell {
    display: grid;
    grid-template-columns: 178px minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4.2rem);
    align-items: start;
  }

  .page-about .about-toc {
    display: block;
    position: sticky;
    top: calc(var(--nav-h) + 1.6rem);
    padding-left: .85rem;
    border-left: 1px solid var(--rule-strong);
  }

  .page-about .about-toc__label {
    margin: 0 0 .85rem;
    font-family: var(--font-num);
    font-size: .7rem;
    letter-spacing: .18em;
    color: var(--muted);
  }

  .page-about .about-toc__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: .05rem;
  }

  .page-about .about-toc__link {
    display: flex;
    align-items: baseline;
    gap: .5rem;
    margin-left: -.85rem;
    padding: .36rem .4rem .36rem .85rem;
    font-size: .84rem;
    line-height: 1.4;
    color: var(--muted);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: color var(--t), border-color var(--t);
  }

  .page-about .about-toc__link .num {
    font-family: var(--font-num);
    font-size: .7rem;
    color: var(--amber);
  }

  .page-about .about-toc__link:hover,
  .page-about .about-toc__link[data-active] {
    color: var(--ink-900);
    border-left-color: var(--amber);
  }

  .page-about .about-cols--media {
    grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
    gap: 2.6rem;
    align-items: start;
  }

  .page-about .about-figure--wide .figure__frame {
    aspect-ratio: 2 / 1;
    overflow: hidden;
  }

  .page-about .about-figure--wide .figure__img {
    height: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__body::before,
  .page-about .about-timeline__year,
  .page-about .about-roles__item,
  .page-about .about-toc__link {
    transition: none;
  }

  .page-about .about-timeline__item:hover .about-timeline__body::before,
  .page-about .about-timeline__item:focus-within .about-timeline__body::before {
    transform: none;
  }
}