.page-about {
  --about-red: #C22F2E;
  --about-gold: #D5A960;
  --about-ink: #2F2420;
  --about-cream: #F6F2E9;
  --about-slate: #E9E2D5;
  --about-slate-blue: #3E5C6E;
  --about-pearl: #FAF8F2;
  --about-border: 3px solid var(--about-ink);
  --about-shadow: 4px 4px 0 rgba(47, 36, 32, 0.9);
  --about-radius: 6px;
  padding-bottom: 3rem;
  background:
    linear-gradient(135deg, transparent 14px, rgba(47, 36, 32, 0.04) 14px, rgba(47, 36, 32, 0.04) 16px, transparent 16px) 0 0 / 32px 32px,
    var(--about-cream);
}

.page-about .breadcrumb {
  padding-top: 1.25rem;
  padding-bottom: 0.75rem;
  font-size: 0.875rem;
  color: var(--about-slate-blue);
}

.page-about .breadcrumb a {
  color: var(--about-slate-blue);
  text-decoration-color: var(--about-gold);
  text-underline-offset: 4px;
}

.page-about .breadcrumb a:hover {
  color: var(--about-red);
}

.page-about .hero-title {
  margin: 0.25rem 0 1rem;
  font-size: clamp(2.4rem, 6vw, 4.9rem);
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--about-ink);
  font-weight: 700;
}

.page-about .hero-lead {
  max-width: 42rem;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--about-ink);
  border-left: 4px solid var(--about-red);
  padding-left: 1rem;
}

.page-about .about-hero__meta-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin-top: 1.5rem;
  align-items: center;
}

.page-about .about-hero__meta-wrap a {
  text-decoration: none;
}

.page-about .about-hero__meta-wrap .badge {
  color: var(--about-ink);
  font-weight: 500;
}

.page-about .about-hero__meta-wrap .badge:hover {
  background: var(--about-ink);
  color: var(--about-cream);
}

.page-about .section-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--about-ink);
  margin: 0.5rem 0 1.2rem;
}

.page-about .section-title::before {
  content: "";
  display: inline-block;
  width: 2rem;
  height: 0.3rem;
  background: var(--about-red);
  margin-right: 0.75rem;
  vertical-align: middle;
}

.page-about .exhibit-label {
  font-size: 0.875rem;
  letter-spacing: 0.18em;
  color: var(--about-red);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.page-about .exhibit-label.have-index {
  color: var(--about-slate-blue);
}

.page-about .zone {
  border-top: 4px solid var(--about-ink);
  border-bottom: 4px solid var(--about-ink);
  padding-top: 3rem;
  padding-bottom: 3rem;
  margin-top: 3rem;
}

.page-about .zone--slate {
  background: var(--about-slate);
}

.page-about .zone--team {
  background: var(--about-ink);
  color: var(--about-cream);
}

.page-about .about-intro__grid {
  display: grid;
  gap: 2rem;
}

.page-about .about-intro__text p {
  margin-bottom: 1rem;
  line-height: 1.75;
}

.page-about .about-intro__image {
  min-width: 0;
}

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

.page-about .about-timeline__head {
  margin-bottom: 2rem;
}

.page-about .about-timeline__body {
  display: grid;
  gap: 2rem;
}

.page-about .about-timeline__index {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.page-about .timeline-year-btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border: var(--about-border);
  background: var(--about-pearl);
  color: var(--about-ink);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: var(--about-shadow);
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.page-about .timeline-year-btn:hover,
.page-about .timeline-year-btn.is-current {
  background: var(--about-red);
  color: var(--about-cream);
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(47, 36, 32, 0.9);
}

.page-about .about-timeline__events {
  display: grid;
  gap: 1.25rem;
}

.page-about .timeline-event {
  margin: 0;
  padding: 1.5rem;
  border: var(--about-border);
  border-left: 0.6rem solid var(--about-red);
  box-shadow: var(--about-shadow);
}

.page-about .timeline-event--current {
  background: var(--about-pearl);
}

.page-about .timeline-event__year {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin: 0 0 0.5rem;
  color: var(--about-red);
}

.page-about .timeline-event__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0.25rem 0 0.35rem;
  color: var(--about-ink);
}

.page-about .timeline-event p:last-child {
  margin-bottom: 0;
  line-height: 1.7;
}

.page-about .about-timeline__figure {
  margin: 2.5rem 0 0;
}

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

.page-about .about-honor__note {
  margin-top: 2rem;
  font-size: 0.875rem;
  color: var(--about-slate-blue);
  border-top: 1px solid var(--about-gold);
  padding-top: 1rem;
}

.page-about .honor-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.page-about .honor-card {
  position: relative;
  background: var(--about-pearl);
  border: var(--about-border);
  padding: 1.75rem;
  box-shadow: var(--about-shadow);
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.page-about .honor-card:hover {
  transform: translateY(-4px);
  box-shadow: 6px 10px 0 rgba(47, 36, 32, 0.9);
  border-color: var(--about-red);
}

.page-about .honor-card::after {
  content: "资字号";
  position: absolute;
  right: 1rem;
  top: 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--about-gold);
  border: 1px solid var(--about-gold);
  padding: 0.1rem 0.6rem;
  border-radius: 2px;
}

.page-about .honor-card__name {
  font-size: 1.3rem;
  margin: 0 0 0.25rem;
  font-weight: 700;
}

.page-about .honor-card__level {
  font-size: 0.875rem;
  color: var(--about-red);
  margin: 0 0 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.page-about .honor-card__desc {
  margin: 0;
  line-height: 1.7;
  font-size: 0.95rem;
}

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

.page-about .research-inline-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 1rem;
}

.page-about .research-card {
  background: var(--about-pearl);
  border: 3px solid var(--about-ink);
  border-top: 6px solid var(--about-gold);
  padding: 1.5rem;
  box-shadow: 4px 4px 0 rgba(47, 36, 32, 0.9);
  transition: transform 0.22s ease, border-color 0.22s ease;
}

.page-about .research-card:hover {
  transform: translate(-2px, -2px);
  border-color: var(--about-red);
}

.page-about .research-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
}

.page-about .research-card__count {
  font-family: var(--font-display);
  font-size: 2.15rem;
  font-weight: 900;
  color: var(--about-slate-blue);
  margin: 0.1rem 0 0.5rem;
}

.page-about .research-card__desc {
  margin: 0;
  line-height: 1.7;
  font-size: 0.95rem;
}

.page-about .about-learning-path {
  margin-top: 3rem;
  border: 3px dashed var(--about-slate-blue);
  padding: 1.75rem 1.25rem;
  background: rgba(62, 92, 110, 0.06);
}

.page-about .about-learning-path__heading {
  font-size: 1.45rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
  color: var(--about-ink);
}

.page-about .about-learning-path__row {
  display: grid;
  gap: 1.25rem;
}

.page-about .about-learning-path__item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  border-bottom: 1px solid rgba(62, 92, 110, 0.4);
  padding-bottom: 0.75rem;
}

.page-about .about-learning-path__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-about .about-learning-path__num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--about-red);
  line-height: 1.2;
}

.page-about .about-learning-path__text {
  margin: 0;
  line-height: 1.65;
  font-size: 0.98rem;
  color: var(--about-ink);
}

.page-about .about-team__grid {
  display: grid;
  gap: 2rem;
  align-items: start;
}

.page-about .about-team .section-title,
.page-about .about-team .about-team__quote {
  color: var(--about-cream);
}

.page-about .about-team .exhibit-label {
  color: var(--about-gold);
}

.page-about .about-team__content p {
  color: var(--about-cream);
  opacity: 0.9;
  line-height: 1.75;
}

.page-about .about-team__list {
  list-style: none;
  margin: 1.5rem 0;
  padding: 0;
}

.page-about .about-team__list li {
  color: var(--about-cream);
  padding: 0.625rem 0 0.625rem 1.25rem;
  border-bottom: 1px solid rgba(214, 169, 96, 0.35);
  position: relative;
  line-height: 1.6;
  font-size: 0.95rem;
}

.page-about .about-team__list li::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 1.05rem;
  width: 10px;
  height: 10px;
  background: var(--about-gold);
  transform: rotate(45deg);
  border-radius: 1px;
}

.page-about .about-team__quote {
  border: none;
  border-left: 4px solid var(--about-gold);
  margin: 1.5rem 0 0;
  padding: 0.75rem 0 0.75rem 1.25rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--about-cream);
  background: rgba(213, 169, 96, 0.12);
}

.page-about .about-team__visual {
  min-width: 0;
}

.page-about .about-team .img-frame {
  border-color: var(--about-gold);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.35);
}

.page-about .about-trust {
  margin-top: 4rem;
  background: var(--about-pearl);
  border: var(--about-border);
  padding: 2.5rem 1.75rem;
  box-shadow: var(--about-shadow);
}

.page-about .about-trust__stats {
  display: grid;
  gap: 1.5rem;
  margin: 1.5rem 0 1.75rem;
}

.page-about .about-trust__stats .stat {
  text-align: left;
  padding-left: 0.9rem;
  border-left: 4px solid var(--about-red);
}

.page-about .about-trust__stats .stat__num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 900;
  display: block;
  color: var(--about-ink);
  line-height: 1.1;
}

.page-about .about-trust__stats .stat__label {
  font-size: 0.9rem;
  color: var(--about-slate-blue);
  display: block;
  margin-top: 0.3rem;
}

.page-about .about-trust__note {
  line-height: 1.8;
  font-size: 0.95rem;
}

.page-about .about-trust__note a {
  color: var(--about-slate-blue);
  font-weight: 600;
  text-decoration-color: var(--about-gold);
  text-underline-offset: 4px;
}

.page-about .about-trust__note a:hover {
  color: var(--about-red);
}

.page-about .img-frame {
  border: var(--about-border);
  background: var(--about-slate);
  box-shadow: var(--about-shadow);
  margin: 0;
  padding: 0.75rem;
}

.page-about .img-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.page-about .img-frame__caption {
  padding-top: 0.7rem;
  font-size: 0.82rem;
  color: var(--about-ink);
  letter-spacing: 0.06em;
  text-align: right;
  font-style: normal;
}

@media (min-width: 768px) {
  .page-about .hero-lead {
    font-size: 1.25rem;
  }

  .page-about .about-intro__grid {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }

  .page-about .about-timeline__body {
    grid-template-columns: 180px 1fr;
    gap: 2.5rem;
  }

  .page-about .about-timeline__index {
    flex-direction: column;
    align-items: stretch;
    align-self: start;
    position: sticky;
    top: 100px;
    gap: 0.75rem;
  }

  .page-about .timeline-year-btn {
    text-align: center;
    font-size: 1.05rem;
    padding: 0.75rem 0.6rem;
  }

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

  .page-about .research-inline-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-learning-path__row {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .page-about .about-learning-path__item {
    flex-direction: column;
    border-bottom: none;
    border-right: 1px solid rgba(62, 92, 110, 0.4);
    padding: 0 1rem 0.5rem 0;
  }

  .page-about .about-learning-path__item:last-child {
    border-right: none;
  }

  .page-about .about-team__grid {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }

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

  .page-about .about-trust__stats .stat {
    text-align: center;
    padding-left: 0;
    border-left: none;
    border-bottom: 3px solid var(--about-red);
    padding-bottom: 0.85rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-intro__text p {
    font-size: 1.0625rem;
  }

  .page-about .honor-card {
    padding: 2rem;
  }

  .page-about .timeline-event {
    padding: 1.75rem 2rem;
  }

  .page-about .about-timeline__events {
    gap: 1.5rem;
  }
}