.page-about {
  --tl-node-size: 2.75rem;
  --tl-axis-offset: 1.375rem;
  padding: 2rem 0 4rem;
}

.page-about .breadcrumb {
  font-size: 0.8125rem;
  margin-bottom: 2rem;
}

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

.page-about .section-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  text-transform: uppercase;
}

.page-about .section-label::before {
  content: "//";
  color: var(--accent-purple);
}

.page-about h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.2;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.page-about .about-archive {
  position: relative;
  overflow: hidden;
  padding: 1.5rem 1.25rem 1.75rem;
  background:
    radial-gradient(circle at 90% 10%, rgba(139, 92, 246, 0.12), transparent 40%),
    var(--panel-dark);
  border: 1px solid var(--border-line);
}

.page-about .about-archive::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple));
}

.page-about .archive-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.page-about .archive-code {
  letter-spacing: 0.12em;
}

.page-about .archive-grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .archive-kicker {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--accent-orange);
}

.page-about .archive-head h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.1;
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
}

.page-about .archive-lead {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.75;
  max-width: 34em;
}

.page-about .archive-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  border: 1px solid var(--border-line);
  background: var(--border-line);
}

.page-about .archive-field {
  background: var(--base-dark);
  padding: 0.75rem 0.875rem;
}

.page-about .archive-field dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--accent-blue);
  margin-bottom: 0.25rem;
}

.page-about .archive-field dd {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.page-about .about-intro {
  padding: 1.5rem 1.25rem;
  background: var(--panel-dark);
  border: 1px solid var(--border-line);
}

.page-about .intro-head,
.page-about .journey-head,
.page-about .compliance-head,
.page-about .stats-head {
  margin-bottom: 1.25rem;
}

.page-about .intro-grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .intro-copy p {
  margin: 0 0 0.875rem;
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: 0.9375rem;
}

.page-about .intro-copy p:last-of-type {
  margin-bottom: 1.25rem;
}

.page-about .about-visual {
  border: 1px solid var(--border-line);
  background: var(--base-dark);
  margin: 0;
}

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

.page-about .about-visual img {
  aspect-ratio: 8 / 5;
}

.page-about .journey-lede,
.page-about .stats-lede {
  max-width: 38em;
  margin: 0 0 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-about .timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 2.25rem;
}

.page-about .timeline-list::before {
  content: "";
  position: absolute;
  left: var(--tl-axis-offset);
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-1px);
  background: linear-gradient(180deg, var(--accent-blue), var(--accent-purple), var(--border-line));
}

.page-about .timeline-item {
  display: grid;
  grid-template-columns: var(--tl-node-size) 1fr;
  gap: 0 1rem;
}

.page-about .timeline-node {
  grid-column: 1;
  grid-row: 1 / 3;
  width: var(--tl-node-size);
  height: var(--tl-node-size);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-line);
  background: var(--base-dark);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  transition:
    color var(--ease),
    border-color var(--ease),
    background var(--ease),
    transform var(--ease);
}

.page-about .timeline-node:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(0, 229, 160, 0.07);
  transform: scale(1.08);
}

.page-about .timeline-meta {
  grid-column: 2;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--accent-orange);
}

.page-about .timeline-card {
  grid-column: 2;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-line);
}

.page-about .timeline-card h3 {
  margin: 0.25rem 0 0.375rem;
  font-size: 1.125rem;
  line-height: 1.3;
  color: var(--text-primary);
}

.page-about .timeline-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
}

.page-about .compliance-grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .compliance-visual {
  border: 1px solid var(--border-line);
  background: var(--panel-dark);
  margin: 0;
  transition: background 0.25s ease;
}

.page-about .compliance-visual:hover {
  background: linear-gradient(135deg, rgba(0, 168, 255, 0.12), rgba(139, 92, 246, 0.08));
}

.page-about .compliance-visual img {
  max-width: 320px;
  margin: 0 auto;
  aspect-ratio: 1 / 1;
}

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

.page-about .compliance-card {
  padding: 1.25rem;
  background: var(--panel-dark);
  border: 1px solid var(--border-line);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.page-about .compliance-card:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 1px rgba(0, 168, 255, 0.2), 0 0 30px rgba(0, 168, 255, 0.06);
}

.page-about .compliance-card h3 {
  margin: 0 0 0.375rem;
  font-size: 1rem;
  color: var(--text-primary);
}

.page-about .compliance-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
}

.page-about .stats-grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .stats-chart {
  border: 1px solid var(--border-line);
  background: var(--base-dark);
  margin: 0;
}

.page-about .stats-chart img {
  aspect-ratio: 8 / 5;
}

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

.page-about .stat-card {
  padding: 1.25rem 1rem;
  background: var(--panel-dark);
  border: 1px solid var(--border-line);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.page-about .stat-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 1px rgba(0, 229, 160, 0.15), 0 0 30px rgba(0, 229, 160, 0.06);
}

.page-about .stat-card dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--accent-blue);
}

.page-about .stat-card dd {
  margin: 0.25rem 0 0.25rem;
  font-size: clamp(1.5rem, 6vw, 2.125rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-primary);
}

.page-about .stat-card span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.page-about .about-more {
  padding-top: 0.5rem;
}

.page-about .more-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about .more-link {
  flex: 1 1 9rem;
  min-width: 10rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  background: var(--panel-dark);
  border: 1px solid var(--border-line);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.page-about .more-link::after {
  content: "→";
  color: var(--accent-cyan);
  transition: transform 0.18s ease;
}

.page-about .more-link:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 229, 160, 0.05);
}

.page-about .more-link:hover::after {
  transform: translateX(3px);
}

@media (min-width: 768px) {
  .page-about {
    padding-top: 2.5rem;
  }

  .page-about .archive-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
    gap: 2rem;
  }

  .page-about .archive-fields {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-intro {
    padding: 2rem;
  }

  .page-about .intro-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
    gap: 2rem;
  }

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

  .page-about .compliance-list {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .stats-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 992px) {
  .page-about .compliance-grid {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: start;
    gap: 2rem;
  }

  .page-about .compliance-visual {
    order: -1;
  }

  .page-about .stats-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
    gap: 2rem;
  }

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

  .page-about .timeline-list {
    padding: 0;
  }

  .page-about .timeline-list::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .timeline-item {
    grid-template-columns: 1fr var(--tl-node-size) 1fr;
    gap: 0 1.75rem;
  }

  .page-about .timeline-node {
    grid-column: 2;
    grid-row: 1;
    justify-self: center;
    align-self: center;
  }

  .page-about .timeline-item:nth-child(odd) .timeline-meta {
    grid-column: 1;
    grid-row: 1;
    justify-self: end;
    align-self: center;
  }

  .page-about .timeline-item:nth-child(odd) .timeline-card {
    grid-column: 3;
    grid-row: 1;
  }

  .page-about .timeline-item:nth-child(odd) .timeline-card h3 {
    margin-top: 0;
  }

  .page-about .timeline-item:nth-child(even) .timeline-meta {
    grid-column: 3;
    grid-row: 1;
    justify-self: start;
    align-self: center;
  }

  .page-about .timeline-item:nth-child(even) .timeline-card {
    grid-column: 1;
    grid-row: 1;
    text-align: right;
  }
}