.page-about {
  --about-deck-bg: var(--c-paper);
  --about-rail: 40px;
}

.page-about .breadcrumbs {
  margin: 24px 0 0;
}

.page-about .section {
  scroll-margin-top: 72px;
  padding: var(--space-5) 0;
}

.page-about .section-head {
  margin-bottom: var(--space-4);
}

.page-about .about-hero {
  position: relative;
  padding: 40px 0 36px;
  border-bottom: 2px solid var(--c-ink);
  margin-bottom: 24px;
  overflow: hidden;
}

.page-about .about-hero::after {
  content: '';
  position: absolute;
  right: -12px;
  top: -12px;
  width: 56px;
  height: 56px;
  background: var(--c-brand);
  opacity: 0.16;
  transform: rotate(8deg);
}

.page-about .about-hero-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--c-brand);
  text-transform: uppercase;
}

.page-about .hero-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--c-brand);
  flex: 0 0 auto;
}

.page-about .about-hero h1 {
  margin: 0 0 24px;
  max-width: 880px;
  padding-left: 16px;
  transform: skewX(var(--skew));
  transform-origin: left center;
  font-family: var(--font-heading);
  font-size: clamp(36px, 7vw, 64px);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}

.page-about .about-hero-lead {
  max-width: 680px;
  margin: 0;
  padding-left: 20px;
  border-left: 4px solid var(--c-brand);
  font-size: 17px;
  line-height: 1.8;
  color: var(--c-text);
}

.page-about .about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-aside {
  border-top: 2px solid var(--c-ink);
  padding-top: 16px;
}

.page-about .aside-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--c-muted);
  margin-bottom: 10px;
}

.page-about .aside-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-ink);
  margin-bottom: 12px;
}

.page-about .aside-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

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

.page-about .content-lead {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-ink);
  margin: 0 0 16px;
}

.page-about .about-content > p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text);
  margin: 0 0 16px;
}

.page-about .stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  margin: 28px 0;
}

.page-about .stat-cell {
  background: var(--c-paper);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .stat-cell::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  background: var(--c-brand);
  margin-bottom: 2px;
}

.page-about .stat-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-ink);
}

.page-about .stat-label {
  font-size: 14px;
  color: var(--c-muted);
}

.page-about .profile-media {
  margin-top: 8px;
}

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

.page-about .about-milestones,
.page-about .about-eco {
  background: var(--c-paper);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-about .timeline-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .timeline-years {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.page-about .timeline-year {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--c-muted);
  padding: 6px 14px;
  background: var(--c-paper);
  border: 1px solid var(--c-line);
}

.page-about .timeline-stack {
  position: relative;
  padding-left: 40px;
}

.page-about .timeline-stack::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--c-line);
}

.page-about .timeline-item {
  position: relative;
  padding: 0 0 40px 0;
}

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

.page-about .timeline-item::before {
  content: '';
  position: absolute;
  left: -40px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--c-paper);
  border: 3px solid var(--c-brand);
  box-sizing: border-box;
}

.page-about .timeline-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-bottom: 10px;
}

.page-about .timeline-time {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-brand);
  background: var(--c-brand-light);
  padding: 3px 10px;
  white-space: nowrap;
}

.page-about .timeline-item h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-ink);
}

.page-about .timeline-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text);
  max-width: 640px;
}

.page-about .team-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .team-copy > p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text);
  margin: 0 0 20px;
}

.page-about .team-copy h3 {
  margin: 24px 0 4px;
  font-size: 18px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-about .capability-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 24px;
}

.page-about .capability-list li {
  position: relative;
  padding: 13px 0 13px 26px;
  border-bottom: 1px solid var(--c-line);
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-text);
}

.page-about .capability-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 21px;
  width: 8px;
  height: 8px;
  background: var(--c-brand);
}

.page-about .team-note {
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-muted);
  margin: 0 0 8px;
}

.page-about .eco-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .eco-main > p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text);
  margin: 0 0 24px;
}

.page-about .eco-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.page-about .eco-card {
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-brand);
  background: var(--c-paper);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.page-about .eco-card-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-brand);
  margin-bottom: 12px;
}

.page-about .eco-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-about .eco-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text);
}

.page-about .eco-cta {
  font-size: 15px;
}

.page-about .eco-cta a {
  color: var(--c-brand);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .about-verify {
  background: var(--c-ink);
  color: var(--c-paper);
}

.page-about .about-verify .section-head {
  border-bottom-color: rgba(255, 255, 255, 0.2);
}

.page-about .about-verify .chapter-title {
  color: var(--c-paper);
}

.page-about .about-verify .chapter-note {
  color: rgba(255, 255, 255, 0.55);
}

.page-about .about-verify .chapter-index {
  color: var(--c-brand);
}

.page-about .verify-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-about .verify-main > p {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 32px;
}

.page-about .verify-steps {
  display: grid;
  gap: 20px;
  margin-bottom: 32px;
}

.page-about .verify-step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.page-about .verify-step-num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-brand);
}

.page-about .verify-step h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-paper);
}

.page-about .verify-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
}

.page-about .about-verify-link {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--c-paper);
}

.page-about .about-verify-link:hover {
  border-color: var(--c-brand);
}

.page-about .verify-sidebar {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 32px 24px;
  align-self: start;
}

.page-about .verify-sidebar h3 {
  margin: 0 0 20px;
  font-family: var(--font-heading);
  font-size: 21px;
  font-weight: 900;
  transform: skewX(var(--skew));
  color: var(--c-paper);
}

.page-about .verify-list {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
}

.page-about .verify-list li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
}

.page-about .verify-list li::before {
  content: '◆';
  color: var(--c-brand);
  margin-right: 10px;
  font-size: 10px;
  vertical-align: 1px;
}

.page-about [data-spy-target][data-active] .section-head {
  border-bottom-color: var(--c-brand);
}

@media (min-width: 640px) {
  .page-about .stat-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .page-about .eco-layout {
    gap: 36px;
  }

  .page-about .eco-media {
    width: 100%;
  }
}

@media (min-width: 900px) {
  .page-about .section {
    padding: var(--space-6) 0;
  }

  .page-about .about-hero {
    padding: 56px 0 44px;
  }

  .page-about .about-grid {
    grid-template-columns: 200px 1fr;
    gap: 64px;
  }

  .page-about .about-aside {
    border-top: none;
    border-left: 2px solid var(--c-ink);
    padding: 0 0 0 20px;
  }

  .page-about .aside-value {
    font-size: 44px;
  }

  .page-about .about-content {
    padding-top: 4px;
  }

  .page-about .profile-media {
    margin-top: 16px;
  }

  .page-about .timeline-wrap {
    grid-template-columns: 200px 1fr;
    gap: 0;
  }

  .page-about .timeline-years {
    flex-direction: column;
    border-right: 1px solid var(--c-line);
    padding-right: 24px;
    margin: 0;
    gap: 0;
  }

  .page-about .timeline-year {
    padding: 12px 0;
    text-align: right;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--c-line);
  }

  .page-about .timeline-year:first-child {
    border-top: 1px solid var(--c-line);
  }

  .page-about .timeline-stack {
    padding-left: 40px;
  }

  .page-about .team-layout {
    grid-template-columns: 1.15fr 1fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .team-media {
    margin-top: 8px;
  }

  .page-about .eco-layout {
    grid-template-columns: 1fr;
  }

  .page-about .eco-main {
    max-width: 820px;
  }

  .page-about .eco-media {
    margin-top: 8px;
  }

  .page-about .verify-grid {
    grid-template-columns: 1.8fr 1fr;
    gap: 56px;
  }

  .page-about .verify-sidebar {
    padding: 40px 32px;
  }
}