.page-about {
  --about-radius: 14px;
  --about-card-bg: #FFFFFF;
  background: var(--cream);
  color: var(--blue-900);
  overflow-x: hidden;
}

.page-about .about-hero {
  position: relative;
  padding: 2rem 1.25rem 2.5rem;
  max-width: var(--container);
  margin: 0 auto;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34%;
  height: 6px;
  background: var(--orange);
  transform: skewX(-18deg);
  transform-origin: left top;
}

.page-about .breadcrumb {
  font-size: 0.85rem;
  color: var(--gray);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.page-about .breadcrumb a {
  color: var(--blue-700);
  text-decoration: none;
}

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

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: end;
  margin-bottom: 1.5rem;
}

.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--orange);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  margin-bottom: 0.9rem;
}

.page-about .about-kicker::before {
  content: "";
  width: 26px;
  height: 10px;
  background: var(--orange);
  clip-path: polygon(0 0, 100% 0, 70% 100%, 0 100%);
  flex: 0 0 auto;
}

.page-about .about-hero h1 {
  margin: 0 0 1.1rem;
  font-size: 2.05rem;
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
}

.page-about .about-hero h1 em {
  font-style: normal;
  display: block;
  color: var(--gray);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.5;
  margin-top: 0.6rem;
}

.page-about .about-hero-note {
  background: var(--blue-900);
  border-radius: var(--about-radius);
  padding: 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.page-about .about-hero-num {
  font-family: var(--font-mono);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--orange);
  line-height: 1;
  display: block;
}

.page-about .about-hero-note p {
  margin: 0.6rem 0 0;
  color: var(--orange-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-about .about-hero-note::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  border-left: 18px solid transparent;
  border-bottom: 18px solid var(--orange);
  border-top: 18px solid transparent;
  width: 0;
  height: 0;
}

.page-about .about-lede {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--blue-700);
  max-width: 66ch;
  margin: 0;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-about .about-layout {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem 4.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-about .about-index {
  background: var(--white);
  border-radius: var(--about-radius);
  padding: 1.4rem 1.25rem;
  box-shadow: var(--shadow);
  align-self: start;
}

.page-about .about-index-label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: var(--gray);
  margin-bottom: 1rem;
}

.page-about .about-index-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.page-about .about-index-nav a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.4rem 0.5rem 0.4rem 0.9rem;
  border-left: 3px solid var(--orange-light);
  color: var(--blue-700);
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.45;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-about .about-index-nav a:hover,
.page-about .about-index-nav a:focus {
  background: var(--teal-light);
  border-left-color: var(--orange);
  color: var(--blue-900);
}

.page-about .about-index-nav a span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--orange);
  font-weight: 700;
  min-width: 1.4rem;
}

.page-about .about-index-cta {
  display: block;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--orange);
  border-top: 1px dashed var(--orange-light);
  padding-top: 1rem;
  margin-top: 0.5rem;
  text-decoration: none;
}

.page-about .about-index-cta:hover {
  color: var(--blue-900);
}

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

.page-about .about-section {
  padding-top: 2.6rem;
  scroll-margin-top: calc(var(--header-stack) + 1rem);
}

.page-about .about-section:first-child {
  padding-top: 0;
}

.page-about .about-section:target {
  background: linear-gradient(to right, var(--teal-light), transparent 70%);
  padding-left: 1rem;
  padding-right: 1rem;
  border-radius: 8px;
}

.page-about .section-title {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1.25rem;
}

.page-about .section-title h2 {
  font-size: 1.55rem;
  font-weight: 800;
  line-height: 1.3;
  margin: 0;
  letter-spacing: -0.01em;
}

.page-about .about-section-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--white);
  background: var(--orange);
  padding: 0.25rem 0.55rem;
  clip-path: polygon(0 0, 100% 0, 88% 100%, 0 100%);
  letter-spacing: 0.05em;
}

.page-about .about-section p {
  color: var(--blue-700);
  line-height: 1.72;
  margin: 0 0 1rem;
}

.page-about .about-section blockquote {
  margin: 1.4rem 0 1.6rem;
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--orange);
  background: var(--orange-light);
  color: var(--blue-900);
  font-size: 1.02rem;
  line-height: 1.7;
  font-weight: 500;
  border-radius: 0 10px 10px 0;
}

.page-about .timeline-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.8rem;
}

.page-about .about-timeline {
  display: flex;
  flex-direction: column;
}

.page-about .timeline-item {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 1rem;
  padding-bottom: 1.35rem;
}

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

.page-about .timeline-year {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--orange);
  text-align: right;
  padding-right: 0.65rem;
  position: relative;
  line-height: 1.6;
}

.page-about .timeline-year::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0.12rem;
  bottom: 0.12rem;
  width: 3px;
  background: var(--orange);
  transform: skewX(-10deg);
}

.page-about .timeline-card {
  background: var(--white);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  box-shadow: var(--shadow);
  border-left: 3px solid var(--orange-light);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-about .timeline-item:hover .timeline-card,
.page-about .timeline-item:focus-within .timeline-card {
  transform: translateY(-3px);
  border-color: var(--orange);
  box-shadow: 0 12px 28px rgba(11, 30, 45, 0.16);
}

.page-about .timeline-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue-900);
}

.page-about .timeline-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--blue-700);
  line-height: 1.6;
}

.page-about .about-trust {
  margin: 1.6rem 0 0;
  font-size: 0.92rem;
  color: var(--gray);
  line-height: 1.7;
  padding-left: 1rem;
  border-left: 3px solid var(--teal);
}

.page-about .about-intro {
  font-size: 1rem;
}

.page-about .principles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1.6rem 0 0;
}

.page-about .principle-card {
  position: relative;
  background: var(--white);
  border-radius: 10px;
  padding: 1.4rem 1.5rem 1.5rem;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.2s ease;
}

.page-about .principle-card:hover {
  transform: translateY(-2px);
}

.page-about .principle-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  border-bottom: 26px solid var(--orange-light);
  border-left: 26px solid transparent;
}

.page-about .principle-no {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--orange);
  display: inline-block;
  margin-bottom: 0.6rem;
}

.page-about .principle-card h3 {
  font-size: 1.1rem;
  margin: 0 0 0.45rem;
  color: var(--blue-900);
}

.page-about .principle-card p {
  font-size: 0.92rem;
  color: var(--blue-700);
  line-height: 1.68;
  margin: 0;
}

.page-about .about-update-note {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  background: var(--teal-light);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-top: 1.6rem;
  flex-wrap: wrap;
}

.page-about .update-badge {
  flex: 0 0 auto;
  background: var(--teal);
  color: var(--blue-900);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  white-space: nowrap;
}

.page-about .about-update-note p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--blue-700);
  line-height: 1.6;
}

.page-about .about-data-disclaimer {
  font-size: 0.82rem;
  color: var(--gray);
  padding-top: 0.8rem;
  border-top: 1px solid var(--orange-light);
  margin-top: 1rem;
}

.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
  align-items: center;
  margin-top: 1.6rem;
}

.page-about .team-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.page-about .team-stat {
  background: var(--blue-900);
  border-radius: 12px;
  padding: 1.2rem 0.5rem;
  text-align: center;
  color: var(--cream);
}

.page-about .team-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--orange);
}

.page-about .team-stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--orange-light);
  margin-top: 0.3rem;
}

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

.page-about .about-figure img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.page-about .about-figure figcaption {
  font-size: 0.8rem;
  color: var(--gray);
  line-height: 1.5;
  margin-top: 0.5rem;
  text-align: right;
  padding-right: 0.5rem;
}

.page-about .coop-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.6rem;
}

.page-about .coop-list {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
}

.page-about .coop-list li {
  display: flex;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--orange-light);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--blue-800);
}

.page-about .coop-mark {
  flex: 0 0 auto;
  display: inline-block;
  width: 24px;
  height: 24px;
  background: var(--gray);
  opacity: 0.45;
  border-radius: 50%;
  margin-right: 0.6rem;
}

.page-about .honor-panel {
  background: var(--blue-900);
  border-radius: 14px;
  padding: 2rem 1.6rem;
  color: var(--cream);
  position: relative;
  overflow: hidden;
  align-self: start;
}

.page-about .honor-panel::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -40px;
  width: 150px;
  height: 120px;
  background: var(--orange);
  opacity: 0.18;
  transform: rotate(15deg);
}

.page-about .honor-panel h3 {
  margin: 0 0 0.9rem;
  font-size: 1.25rem;
  color: var(--white);
}

.page-about .honor-lead {
  font-family: var(--font-mono);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--orange);
  margin: 0 0 0.8rem;
}

.page-about .honor-panel > p {
  margin: 0 0 1rem;
  color: var(--orange-light);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-about .honor-details {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 0.9rem;
}

.page-about .honor-details summary {
  cursor: pointer;
  color: var(--teal);
  font-weight: 600;
  font-size: 0.92rem;
  list-style: none;
}

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

.page-about .honor-details summary::after {
  content: "+";
  display: inline-block;
  margin-left: 0.4rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--orange);
  transition: transform 0.2s ease;
}

.page-about .honor-details[open] summary::after {
  transform: rotate(45deg);
}

.page-about .honor-details ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.page-about .honor-details li {
  color: var(--orange-light);
  font-size: 0.88rem;
  line-height: 1.7;
  padding: 0.2rem 0;
}

@media (min-width: 760px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    align-items: end;
  }

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

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

  .page-about .coop-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero {
    padding: 2.5rem 2rem 3rem;
  }

  .page-about .about-layout {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
    padding: 0 2rem 5rem;
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--header-stack) + 1.25rem);
  }

  .page-about .about-section {
    padding-top: 3.2rem;
  }

  .page-about .timeline-wrap {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}