.page-about {
  --about-border: 3px solid var(--color-ink);
  --about-shadow: 8px 8px 0 var(--color-ink);
  --about-shadow-sm: 5px 5px 0 var(--color-ink);
  --about-shadow-light: 8px 8px 0 rgba(255, 255, 255, 0.22);
  background: var(--color-paper);
  color: var(--color-text);
}

.page-about .breadcrumb {
  padding-top: 1.5rem;
}

.page-about .about-hero {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(2rem, 5vw, 3.5rem);
  border-bottom: var(--border-w) solid var(--color-ink);
  position: relative;
}

.page-about .about-hero::after {
  content: "";
  display: block;
  width: 4.5rem;
  height: 0.5rem;
  background: var(--color-accent);
  margin-top: 2rem;
}

.page-about .about-hero__title {
  letter-spacing: -0.03em;
  line-height: 1;
  text-transform: uppercase;
}

.page-about .about-hero__lead {
  max-width: 36em;
  font-size: clamp(1.125rem, 2.2vw, 1.625rem);
  line-height: 1.65;
  color: var(--color-gray-700);
  margin: 1.5rem 0 2rem;
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.875rem;
  padding-top: 1rem;
  border-top: var(--border-w) solid var(--color-gray-100);
}

.page-about .about-hero__meta-num {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-accent-dark);
  line-height: 1;
}

.page-about .about-hero__meta-label {
  font-size: 0.875rem;
  color: var(--color-gray-700);
}

.page-about .about-hero__meta-sep {
  color: var(--color-gray-300);
  font-weight: 700;
}

.page-about .about-mission {
  padding: clamp(3rem, 7vw, 6rem) 0 2.5rem;
  border-bottom: var(--border-w) solid var(--color-ink);
}

.page-about .about-mission .section-head {
  margin-bottom: 2rem;
}

.page-about .about-mission__content {
  margin-bottom: 1.5rem;
}

.page-about .about-mission__lead {
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  font-weight: 700;
  line-height: 1.55;
  margin: 0 0 1.25rem;
}

.page-about .about-mission__text {
  color: var(--color-gray-700);
  line-height: 1.85;
  max-width: 38em;
}

.page-about .about-mission__visual {
  margin: 2.5rem 0 0;
  border: var(--border-w) solid var(--color-ink);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  background: var(--color-paper-dark);
}

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

.page-about .about-mission__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
  max-width: 560px;
}

.page-about .about-mission__stat {
  background: var(--color-paper);
  border: var(--about-border);
  box-shadow: var(--about-shadow-sm);
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 108px;
}

.page-about .about-mission__stat-num {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.01em;
}

.page-about .about-mission__stat-label {
  margin-top: 0.5rem;
  font-weight: 600;
  font-size: 0.9375rem;
}

.page-about .about-mission__stat-meta {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: var(--color-gray-500);
}

.page-about .about-timeline {
  background: var(--color-ink);
  color: var(--color-paper);
  padding: clamp(3rem, 7vw, 6rem) 0;
  border-bottom: var(--border-w) solid var(--color-paper);
}

.page-about .about-timeline .section-title,
.page-about .about-timeline .section-meta {
  color: var(--color-paper);
}

.page-about .about-timeline__track {
  position: relative;
  margin-top: 3rem;
  padding-left: 3rem;
  max-width: 860px;
}

.page-about .about-timeline__track::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 3px;
  transform: translateX(-50%);
  background: var(--color-gray-700);
}

.page-about .about-timeline__item {
  position: relative;
  margin-bottom: 2rem;
  background: var(--color-paper);
  color: var(--color-text);
  border: var(--about-border);
  box-shadow: var(--about-shadow-light);
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 2rem;
  width: 18px;
  height: 18px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: var(--color-paper);
  border: 4px solid var(--color-gray-500);
  box-shadow: 0 0 0 2px var(--color-ink);
  z-index: 2;
}

.page-about .about-timeline__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  padding: 1.25rem 1.25rem;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-timeline__year {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-about .about-timeline__title {
  font-size: 1.125rem;
  font-weight: 700;
}

.page-about .about-timeline__note {
  font-size: 0.75rem;
  color: var(--color-gray-500);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-about .about-timeline__arrow {
  margin-left: auto;
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-gray-500);
  transition: transform var(--trans-fast);
}

.page-about .about-timeline__item[open] .about-timeline__arrow {
  transform: rotate(45deg);
}

.page-about .about-timeline__body {
  padding: 0 1.25rem 1.5rem;
  border-top: var(--border-w) solid var(--color-gray-300);
}

.page-about .about-timeline__body p {
  margin: 1rem 0 0;
  line-height: 1.75;
  color: var(--color-gray-700);
  font-size: 0.95rem;
}

.page-about .about-timeline__body a {
  color: var(--color-accent-dark);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-data {
  padding: clamp(3rem, 7vw, 6rem) 0;
  border-bottom: var(--border-w) solid var(--color-ink);
  background: var(--color-paper-dark);
}

.page-about .about-data .section-head {
  margin-bottom: 2rem;
}

.page-about .about-data__lead {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.6;
  margin: 0 0 1rem;
}

.page-about .about-data__text {
  color: var(--color-gray-700);
  line-height: 1.85;
  max-width: 38em;
}

.page-about .about-data__btn {
  margin-top: 1.5rem;
}

.page-about .about-data__layout {
  margin-top: 2.5rem;
}

.page-about .about-data__layout .media-frame {
  border-color: var(--color-ink);
  box-shadow: var(--shadow-soft);
}

.page-about .about-data__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.page-about .about-data__stat {
  background: var(--color-paper);
  border: var(--about-border);
  box-shadow: var(--about-shadow-sm);
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 96px;
}

.page-about .about-data__num {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.01em;
}

.page-about .about-data__caption {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-gray-700);
  letter-spacing: 0.04em;
}

.page-about .about-partners {
  padding: clamp(3rem, 7vw, 6rem) 0;
}

.page-about .about-partners .section-head {
  margin-bottom: 2rem;
}

.page-about .about-partners__lead {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.6;
  margin: 0 0 1rem;
}

.page-about .about-partners__text {
  color: var(--color-gray-700);
  line-height: 1.85;
  max-width: 38em;
}

.page-about .about-partners__honor {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--color-accent-dark);
  background: var(--color-paper-dark);
  line-height: 1.75;
  font-size: 0.95rem;
}

.page-about .about-partners__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin: 1.5rem 0;
}

.page-about .about-partners__tags .tag {
  border: var(--border-w) solid var(--color-ink);
  background: var(--color-paper);
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 500;
}

.page-about .about-partners__tags .tag--accent {
  background: var(--color-accent-soft);
  border-color: var(--color-accent-dark);
  color: var(--color-accent-dark);
}

.page-about .about-partners__fig {
  margin-top: 2rem;
  border-color: var(--color-ink);
  box-shadow: var(--shadow-soft);
  transition: box-shadow var(--trans-slow), border-color var(--trans-slow);
}

.page-about .about-partners__fig:hover {
  border-color: var(--color-accent-dark);
  box-shadow: var(--shadow-hard), 0 0 0 4px var(--color-accent-soft);
}

@media (min-width: 768px) {
  .page-about .about-hero__meta {
    gap: 0.75rem 1.25rem;
  }

  .page-about .about-mission .section-head,
  .page-about .about-data .section-head,
  .page-about .about-partners .section-head {
    margin-bottom: 0;
  }

  .page-about .about-mission__visual {
    margin-top: 3.5rem;
  }

  .page-about .about-mission__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 2.5rem;
  }

  .page-about .about-timeline__track {
    padding-left: 4rem;
  }

  .page-about .about-timeline__track::before {
    left: 16px;
  }

  .page-about .about-timeline__item::before {
    left: 16px;
  }

  .page-about .about-timeline__head {
    padding: 1.5rem 2rem;
  }

  .page-about .about-timeline__body {
    padding: 0 2rem 1.75rem;
  }

  .page-about .about-data__layout {
    margin-top: 3.5rem;
  }

  .page-about .about-data__stats {
    grid-template-columns: 1fr 1fr;
    margin-top: 0;
  }

  .page-about .about-data__stat {
    min-height: 112px;
  }

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