.page-about {
  background: var(--navy-900);
  color: var(--slate-100);
  font-family: var(--font-body);
  line-height: 1.75;
  padding-bottom: 2rem;
  overflow-x: hidden;
}

.page-about ::selection {
  background: var(--orange-500);
  color: var(--navy-900);
}

.page-about a {
  color: var(--orange-300);
}

.page-about img {
  max-width: 100%;
}

.page-about .breadcrumb {
  display: flex;
  gap: 0.5rem;
  margin: 0 0 1.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--slate-400);
}

.page-about .breadcrumb a {
  color: var(--slate-400);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .breadcrumb a:hover {
  color: var(--orange-300);
}

.page-about .about-hero {
  position: relative;
  display: grid;
  gap: 2rem;
  padding: 2rem 0 3rem;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 31px, rgba(148, 163, 184, 0.08) 31px, rgba(148, 163, 184, 0.08) 32px),
    repeating-linear-gradient(90deg, transparent, transparent 31px, rgba(148, 163, 184, 0.08) 31px, rgba(148, 163, 184, 0.08) 32px);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--orange-500) 0 25%, var(--yellow-400) 25% 50%, var(--green-400) 50% 75%, var(--navy-500) 75% 100%);
  transform: skewX(-22deg);
  transform-origin: left;
  pointer-events: none;
}

.page-about .about-hero-copy {
  position: relative;
  z-index: 1;
}

.page-about .about-hero-archival {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--orange-500);
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.35);
  padding: 0.25rem 0.65rem;
  border-radius: 0.25rem;
  margin-bottom: 1rem;
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5vw, 2.6rem);
  font-weight: 900;
  line-height: 1.22;
  margin: 0 0 1rem;
  letter-spacing: 0.01em;
}

.page-about .about-hero-lead {
  font-size: 1rem;
  color: var(--slate-100);
  max-width: 34em;
  margin: 0 0 1.5rem;
}

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

.page-about .about-hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.page-about .about-stat-card {
  background: var(--navy-700);
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-left: 3px solid var(--orange-500);
  border-radius: var(--radius);
  padding: 1rem 1.125rem;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.25);
}

.page-about .about-stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--orange-500);
}

.page-about .about-stat-unit {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--yellow-400);
}

.page-about .about-stat-label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  color: var(--slate-400);
}

.page-about .about-toc {
  display: grid;
  gap: 0.5rem;
  margin: 2rem 0;
}

.page-about .about-toc-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--navy-700);
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-top: 3px solid var(--orange-500);
  border-radius: var(--radius);
  color: var(--slate-100);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: background 0.2s ease, transform 0.2s ease;
}

.page-about .about-toc-link:hover {
  background: var(--navy-500);
  transform: translateY(-2px);
}

.page-about .about-toc-num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--orange-500);
}

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

.page-about .section-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.page-about .section-head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--orange-500), rgba(255, 107, 53, 0));
}

.page-about .section-index {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--orange-500);
  letter-spacing: 0.06em;
}

.page-about .section-head h2 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1.25;
  white-space: nowrap;
}

.page-about .about-value-grid {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.page-about .about-value-copy p {
  margin: 0 0 1rem;
}

.page-about .about-value-copy a {
  color: var(--orange-300);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-about .about-value-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.page-about .about-value-list li {
  position: relative;
  padding: 0.75rem 0 0.75rem 1.75rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  font-size: 0.9375rem;
}

.page-about .about-value-symbol {
  position: absolute;
  left: 0.25rem;
  color: var(--orange-500);
  font-weight: 900;
}

.page-about .about-value-figure {
  margin: 0;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--navy-700);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.25);
}

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

.page-about .about-value-figure figcaption {
  padding: 0.6rem 1rem;
  font-size: 0.75rem;
  color: var(--slate-400);
  letter-spacing: 0.03em;
}

.page-about .about-data-grid {
  display: grid;
  gap: 1rem;
}

.page-about .about-data-card {
  background: var(--navy-700);
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.2);
}

.page-about .about-data-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange-500);
  margin-bottom: 0.5rem;
}

.page-about .about-data-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
}

.page-about .about-data-card p {
  font-size: 0.9375rem;
  color: var(--slate-400);
  margin: 0;
}

.page-about .about-pipeline-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-about .about-pipeline-list li {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.4rem 0;
  font-size: 0.9375rem;
  color: var(--slate-100);
}

.page-about .about-pipeline-list span {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--yellow-400);
  min-width: 1.5rem;
}

.page-about .about-timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 0.4375rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(180deg, var(--orange-500) 0%, var(--navy-500) 100%);
}

.page-about .about-timeline-item {
  position: relative;
  padding-left: 2.25rem;
  margin-bottom: 1rem;
}

.page-about .about-timeline-item::before {
  content: "";
  position: absolute;
  left: 0.25rem;
  top: 1.125rem;
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--orange-500);
  border: 2px solid var(--navy-900);
}

.page-about .about-timeline-box {
  background: var(--navy-700);
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: var(--radius);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.2);
  transition: border-color 0.2s ease;
}

.page-about .about-timeline-box[open] {
  border-color: rgba(255, 107, 53, 0.45);
}

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

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

.page-about .about-timeline-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--orange-500);
}

.page-about .about-timeline-box[open] .about-timeline-summary::after {
  content: "−";
}

.page-about .about-timeline-era {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--orange-500);
  background: rgba(255, 107, 53, 0.12);
  padding: 0.15rem 0.5rem;
  border-radius: 0.25rem;
  text-transform: uppercase;
}

.page-about .about-timeline-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--slate-100);
}

.page-about .about-timeline-body {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--slate-400);
}

.page-about .about-timeline-body p {
  margin: 0.25rem 0 0;
}

.page-about .about-timeline-body img {
  display: block;
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: 0.375rem;
  margin-bottom: 0.625rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.page-about .about-ecosystem-grid {
  display: grid;
  gap: 1rem;
}

.page-about .about-eco-card {
  position: relative;
  background: var(--navy-700);
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.2);
}

.page-about .about-eco-award {
  border-top: 4px solid var(--yellow-400);
}

.page-about .about-eco-partner {
  border-top: 4px solid var(--orange-500);
}

.page-about .about-eco-trust {
  border-top: 4px solid var(--green-400);
}

.page-about .about-eco-chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange-500);
  border: 1px solid rgba(255, 107, 53, 0.4);
  padding: 0.125rem 0.5rem;
  border-radius: 0.25rem;
  margin-bottom: 0.75rem;
}

.page-about .about-eco-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.page-about .about-eco-card p {
  font-size: 0.9375rem;
  color: var(--slate-400);
  margin: 0;
}

.page-about .about-eco-award-icon {
  display: block;
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 0.375rem;
  margin: 0 0 0.75rem;
}

.page-about .about-eco-figure {
  margin: 1rem 0 0;
  background: var(--navy-800);
  border-radius: 0.375rem;
  padding: 0.375rem;
}

.page-about .about-eco-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 0.375rem;
}

.page-about .about-eco-figure figcaption {
  padding: 0.5rem;
  font-size: 0.75rem;
  color: var(--slate-400);
  text-align: center;
}

.page-about .about-eco-link {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--orange-300);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 700;
  border-bottom: 1px solid rgba(255, 107, 53, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-eco-link:hover {
  color: var(--orange-500);
  border-color: var(--orange-500);
}

.page-about a:focus-visible,
.page-about .about-timeline-summary:focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: 2px;
}

@media (min-width: 780px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 2.5rem;
    align-items: center;
  }

  .page-about .about-toc {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
  }

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

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

  .page-about .about-ecosystem-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 1.25rem;
  }

  .page-about .about-timeline-body img {
    width: 80px;
    height: 80px;
  }

  .page-about .section-head h2 {
    font-size: 1.75rem;
  }
}