.page-about {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .about-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 40px;
  padding-bottom: 16px;
}

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

.page-about .about-breadcrumb .separator {
  margin: 0 8px;
  color: var(--text-muted);
}

.page-about .about-breadcrumb-note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}

.page-about .section-label {
  display: inline-block;
  border: var(--border-w) solid var(--border);
  background: var(--bg-secondary);
  color: var(--accent);
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-about .about-hero {
  position: relative;
  padding: 24px 0 48px;
  border-bottom: var(--border-w) solid var(--border);
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.page-about .about-hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}

.page-about .about-hero-est {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--text-secondary);
}

.page-about .about-hero-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-hero h1 {
  font-family: var(--font-headline);
  font-size: clamp(44px, 11vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0;
}

.page-about .about-hero-lead {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 4px solid var(--accent);
  font-size: 18px;
  line-height: 1.5;
  color: var(--text-secondary);
  max-width: 520px;
}

.page-about .about-hero-tile {
  display: inline-block;
  margin-top: 18px;
  background: var(--accent);
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-accent);
  color: #0A192F;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 10px 16px;
  transform: rotate(-2deg);
}

.page-about .about-hero-side {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.page-about .about-vertical-note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.page-about .about-vertical-mark {
  display: none;
}

.page-about .about-hero-strip {
  margin-top: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: var(--border-w) solid var(--border);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-hard);
}

.page-about .about-hero-strip span {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-primary);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero-strip span:nth-child(2n) {
  border-right: none;
}

.page-about .about-hero-strip span:nth-child(n+3) {
  border-bottom: none;
}

.page-about .about-body {
  padding: 40px 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-about .about-toc {
  border: var(--border-w) solid var(--border);
  background: rgba(17, 34, 64, 0.92);
  box-shadow: var(--shadow-hard);
}

.page-about .about-toc-inner {
  padding: 12px;
}

.page-about .about-toc-title {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--text-secondary);
  padding: 4px 8px 10px;
}

.page-about .about-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.page-about .about-toc-list::-webkit-scrollbar {
  display: none;
}

.page-about .about-toc-list li {
  flex: 0 0 auto;
}

.page-about .about-toc-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  font-size: 14px;
  white-space: nowrap;
  color: var(--text-secondary);
  text-decoration: none;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-toc-list a:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.page-about .about-toc-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
}

.page-about .about-chapter {
  padding: 48px 0 64px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-chapter:last-child {
  border-bottom: none;
}

.page-about .about-chapter-head {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 12px;
  align-items: end;
  border-bottom: 4px solid var(--border);
  padding-bottom: 18px;
  margin-bottom: 36px;
}

.page-about .about-chapter-num {
  font-family: var(--font-headline);
  font-size: 40px;
  line-height: 1;
  color: var(--accent);
}

.page-about .about-chapter-title h2 {
  font-family: var(--font-headline);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-about .about-chapter-sub {
  margin-top: 10px;
  font-size: 15px;
  color: var(--text-secondary);
}

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

.page-about .media-frame {
  margin: 0;
  border: var(--border-w) solid var(--border);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-hard);
  padding: 8px;
}

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

.page-about .about-origin-text p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 2;
  color: var(--text-secondary);
}

.page-about .about-origin-text .about-origin-lead {
  font-size: 20px;
  line-height: 1.8;
  color: var(--text-primary);
  font-weight: 600;
}

.page-about .about-origin-lead::first-letter {
  float: left;
  font-family: var(--font-headline);
  font-size: 3.2em;
  line-height: 0.82;
  margin-right: 8px;
  margin-top: 4px;
  color: var(--accent);
}

.page-about .about-origin-quote {
  margin: 28px 0 0;
  padding: 20px 22px 14px;
  border-left: 4px solid var(--accent);
  background: var(--bg-secondary);
}

.page-about .about-origin-quote p {
  font-family: var(--font-headline);
  font-size: 20px;
  line-height: 1.5;
  color: var(--text-primary);
  margin: 0 0 10px;
}

.page-about .about-origin-quote cite {
  font-style: normal;
  font-size: 13px;
  color: var(--text-muted);
}

.page-about .about-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 36px;
}

.page-about .about-metric {
  border: var(--border-w) solid var(--border);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-hard);
  padding: 20px;
}

.page-about .about-metric:last-child {
  grid-column: 1 / -1;
}

.page-about .about-metric-label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
}

.page-about .about-metric-value {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1.2;
  font-weight: 700;
  color: var(--text-primary);
}

.page-about .about-timeline {
  position: relative;
  margin-left: 6px;
  padding: 8px 0 0 32px;
  border-left: 2px solid var(--border);
}

.page-about .timeline-content {
  position: relative;
  padding: 0 0 44px 34px;
}

.page-about .timeline-content::before {
  content: "";
  position: absolute;
  left: -41px;
  top: 6px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--bg-primary);
  transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .timeline-item:hover .timeline-content {
  background: var(--bg-elevated);
}

.page-about .timeline-item:hover .timeline-content::before {
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(255, 107, 53, 0.22);
}

.page-about .timeline-item:hover .timeline-year {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--shadow-accent);
}

.page-about .timeline-content .badge {
  font-size: 12px;
}

.page-about .timeline-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  padding: 4px 12px;
  margin-bottom: 12px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .timeline-content h3 {
  font-family: var(--font-headline);
  font-size: 22px;
  line-height: 1.3;
  margin: 0 0 10px;
}

.page-about .timeline-content p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.page-about .about-capability-intro {
  max-width: 860px;
  margin: 0 0 28px;
  font-size: 17px;
  line-height: 2;
  color: var(--text-primary);
}

.page-about .about-capability-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-capability {
  border: var(--border-w) solid var(--border);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-hard);
  padding: 24px;
  transition: box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-about .about-capability:hover {
  box-shadow: var(--shadow-accent);
  transform: translate(-2px, -2px);
}

.page-about .about-capability-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
  margin-bottom: 14px;
}

.page-about .about-capability h3 {
  font-family: var(--font-headline);
  font-size: 20px;
  margin: 0 0 12px;
}

.page-about .about-capability p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.page-about .about-capability .about-capability-note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-muted);
}

.page-about .about-capability-cta {
  margin-top: 32px;
  padding: 22px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: var(--border-w) dashed var(--border);
}

.page-about .about-capability-cta p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 15px;
}

.page-about .about-honors-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .about-honors-media img {
  max-height: 640px;
  width: 100%;
  object-fit: cover;
}

.page-about .about-honor {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-honor-num {
  font-family: var(--font-headline);
  font-size: 28px;
  line-height: 1.1;
  color: var(--accent);
}

.page-about .about-honor h3 {
  font-family: var(--font-headline);
  font-size: 18px;
  margin: 0 0 8px;
}

.page-about .about-honor p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
}

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

.page-about .about-partners-text > p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-secondary);
}

.page-about .about-partner-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-partner-list li {
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  padding: 16px 18px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .about-partner-list li:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-accent);
}

.page-about .about-partner-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(255, 107, 53, 0.3);
  padding: 4px 10px;
  margin-bottom: 10px;
}

.page-about .about-partner-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-about .about-partners-more {
  font-size: 15px;
  color: var(--text-secondary);
}

.page-about .about-contact-band {
  margin-top: 32px;
  padding: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: var(--border-w) solid var(--accent);
  background: var(--accent-soft);
}

.page-about .about-contact-band p {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.page-about:has(#origin:target) .about-toc-list a[href="#origin"],
.page-about:has(#milestones:target) .about-toc-list a[href="#milestones"],
.page-about:has(#capabilities:target) .about-toc-list a[href="#capabilities"],
.page-about:has(#honors:target) .about-toc-list a[href="#honors"],
.page-about:has(#partners:target) .about-toc-list a[href="#partners"] {
  color: #0A192F;
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

@media (min-width: 768px) {
  .page-about .about-hero-strip {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .about-hero-strip span {
    border-right: 1px solid var(--line);
    border-bottom: none;
  }

  .page-about .about-hero-strip span:nth-child(2n) {
    border-right: 1px solid var(--line);
  }

  .page-about .about-hero-strip span:last-child {
    border-right: none;
  }

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

  .page-about .about-metric:last-child {
    grid-column: auto;
  }

  .page-about .about-chapter-num {
    font-size: 56px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 40px 0 56px;
  }

  .page-about .about-hero-main {
    grid-template-columns: 1fr 180px;
    align-items: start;
  }

  .page-about .about-hero-side {
    flex-direction: column;
    align-items: flex-end;
    justify-content: flex-start;
    gap: 20px;
    padding-top: 8px;
  }

  .page-about .about-vertical-note {
    writing-mode: vertical-rl;
    font-size: 12px;
  }

  .page-about .about-vertical-mark {
    display: block;
    writing-mode: vertical-rl;
    font-family: var(--font-headline);
    font-size: 64px;
    line-height: 0.9;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 107, 53, 0.16);
    margin-top: 24px;
  }

  .page-about .about-body {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    padding: 56px 0 0;
  }

  .page-about .about-toc {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .page-about .about-toc-inner {
    padding: 18px;
  }

  .page-about .about-toc-list {
    flex-direction: column;
    gap: 2px;
  }

  .page-about .about-toc-list li {
    flex: none;
  }

  .page-about .about-toc-list a {
    padding: 11px 12px;
  }

  .page-about .about-origin-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-about .about-origin-media img {
    height: 100%;
    max-height: 460px;
    object-fit: cover;
  }

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

  .page-about .about-honors-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-about .about-partners-layout {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
  }
}