.page-about {
  --about-gap: 72px;
  --about-rail: 96px;
  background: var(--paper-50);
  color: var(--ink-900);
}

.page-about .about-crumb {
  padding-top: 24px;
  padding-bottom: 8px;
}

.page-about .about-hero {
  padding: 40px 0 64px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 48px;
  align-items: end;
}

.page-about .about-hero__lead .lede {
  margin-top: 20px;
  max-width: 62ch;
}

.page-about .factlist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-about .factlist__row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .factlist__num {
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1;
  color: var(--copper-500);
  font-variant-numeric: tabular-nums;
}

.page-about .factlist__label {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-700);
}

.page-about .layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 48px;
  padding: 56px 0 96px;
}

.page-about .layout__toc {
  position: sticky;
  top: calc(var(--header-h, 64px) + 24px);
  align-self: start;
}

.page-about .toc__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-about .toc__link {
  display: flex;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-about .toc__link:hover {
  color: var(--copper-500);
}

.page-about .toc__num {
  font-family: var(--font-mono);
  color: var(--stone-500);
}

.page-about .about-block {
  padding-bottom: var(--about-gap);
  margin-bottom: var(--about-gap);
  border-bottom: 1px solid var(--line);
}

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

.page-about .about-block__grid {
  display: grid;
  grid-template-columns: var(--about-rail) minmax(0, 1fr);
  gap: 32px;
}

.page-about .about-block__rail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 64px;
  line-height: 1;
  color: var(--copper-200);
  writing-mode: vertical-rl;
  letter-spacing: 0.08em;
  user-select: none;
}

.page-about .about-block__body > .h2 {
  margin-bottom: 24px;
}

.page-about .prose p {
  margin: 0 0 18px;
  line-height: var(--lh, 1.75);
  color: var(--ink-700);
}

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

.page-about .about-figure {
  margin: 32px 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--paper-100);
}

.page-about .media__caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--stone-500);
}

.page-about .timeline {
  list-style: none;
  margin: 32px 0 0;
  padding: 0 0 0 28px;
  border-left: 1px solid var(--line-copper);
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 32px 24px;
}

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

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--copper-500);
}

.page-about .timeline__batch {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--copper-500);
  border: 1px solid var(--line-copper);
  padding: 2px 8px;
  margin-bottom: 10px;
}

.page-about .timeline__title {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--ink-900);
}

.page-about .timeline__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-700);
}

.page-about .timeline__hint {
  margin-top: 12px;
  padding: 12px 16px;
  background: var(--paper-100);
  border-left: 2px solid var(--copper-500);
}

.page-about .timeline__hint-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--stone-500);
  margin-bottom: 4px;
}

.page-about .timeline__hint p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.page-about .about-team {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.page-about .about-team__card {
  padding: 24px 20px;
  background: var(--paper-100);
  border: 1px solid var(--line);
}

.page-about .about-team__num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--copper-500);
}

.page-about .about-team__title {
  margin: 0 0 10px;
  font-size: 17px;
  color: var(--ink-900);
}

.page-about .about-team__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.page-about .steps {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.page-about .steps__item {
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--paper-50);
}

.page-about .steps__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  color: var(--copper-200);
  margin-bottom: 8px;
}

.page-about .steps__title {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--ink-900);
}

.page-about .steps__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.page-about .review-note {
  margin-top: 28px;
  padding: 20px 24px;
  background: var(--paper-100);
  border-left: 3px solid var(--copper-500);
}

.page-about .netgrid {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .netgrid__cell {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 16px;
  background: var(--paper-50);
  font-size: 15px;
  color: var(--ink-900);
}

.page-about .netgrid__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper-500);
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--line-strong);
}

.page-about .about-stats__cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .about-stats__num {
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
  color: var(--ink-900);
  font-variant-numeric: tabular-nums;
}

.page-about .about-stats__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone-500);
}

.page-about .assure {
  margin-top: 32px;
  border-top: 1px solid var(--line-strong);
}

.page-about .assure__row {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .assure__title {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--ink-900);
}

.page-about .assure__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-about .plan {
  margin-top: 32px;
  border-top: 1px solid var(--line-strong);
}

.page-about .plan__row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .plan__key {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--copper-500);
}

.page-about .plan__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-about .about-next {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

@media (max-width: 960px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .page-about .layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .page-about .layout__toc {
    position: static;
  }

  .page-about .about-team,
  .page-about .steps,
  .page-about .netgrid,
  .page-about .about-stats {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .page-about {
    --about-gap: 48px;
    --about-rail: 48px;
  }

  .page-about .about-block__rail {
    font-size: 40px;
  }

  .page-about .plan__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }
}