.page-about {
  --about-grid-line: rgba(58, 134, 255, 0.09);
  --about-muted: rgba(255, 255, 255, 0.66);
  --about-line: rgba(255, 255, 255, 0.14);
  position: relative;
  background: linear-gradient(180deg, var(--navy-2) 0%, var(--navy) 100%);
  overflow-x: hidden;
}

.page-about::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
}

.page-about > * {
  position: relative;
  z-index: 1;
}

.page-about .about-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.page-about .about-section-head {
  margin-bottom: 28px;
}

.page-about .about-section-head .section-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.12;
  color: var(--white);
  margin: 8px 0 0;
}

.page-about .about-section-head .section-kicker .coord {
  color: var(--gold);
}

.page-about .display-title {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0 0 20px;
}

.page-about .display-title .title-accent {
  color: var(--orange);
}

.page-about .lead {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--about-muted);
  max-width: 640px;
  margin-bottom: 28px;
}

.page-about .about-cover {
  position: relative;
  padding: 40px 0 56px;
  border-bottom: var(--border-m);
  background:
    linear-gradient(135deg, rgba(255, 107, 0, 0.16) 0%, transparent 46%),
    linear-gradient(315deg, rgba(58, 134, 255, 0.1) 0%, transparent 40%);
}

.page-about .about-cover::after {
  content: "";
  position: absolute;
  top: 0;
  right: -60px;
  width: 340px;
  height: 100%;
  background: linear-gradient(200deg, rgba(255, 107, 0, 0.22) 0%, transparent 72%);
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-about .about-cover-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 28px;
}

.page-about .about-cover-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-cover-meta .coord {
  color: var(--about-muted);
}

.page-about .about-cover-console {
  max-width: 720px;
  border: 2px solid var(--gray-l);
  background: rgba(11, 31, 58, 0.56);
  box-shadow: var(--shadow-hard-sm);
  padding: 14px 18px;
  display: grid;
  gap: 14px;
}

.page-about .about-cover-console .console-line {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.page-about .about-cover-console .console-key {
  color: var(--gold);
  white-space: nowrap;
}

.page-about .about-cover-console .console-value {
  color: var(--about-muted);
}

.page-about .about-cover-console a {
  color: var(--white);
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.35);
  text-underline-offset: 2px;
}

.page-about .about-cover-console a:hover {
  color: var(--orange);
  text-decoration-color: var(--orange);
}

.page-about .about-origin-grid {
  display: grid;
  gap: 28px;
  margin-top: 20px;
}

.page-about .about-origin-copy p {
  color: var(--about-muted);
}

.page-about .about-origin-copy p + p {
  margin-top: 16px;
}

.page-about .about-origin-media,
.page-about .about-tech-media,
.page-about .about-data-media {
  display: block;
  overflow: hidden;
  margin: 0;
}

.page-about .about-origin-media {
  aspect-ratio: 4 / 3;
}

.page-about .about-tech-media {
  aspect-ratio: 3 / 2;
}

.page-about .about-data-media {
  aspect-ratio: 10 / 7;
}

.page-about .about-origin-media img,
.page-about .about-tech-media img,
.page-about .about-data-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.page-about .about-milestones {
  padding-top: 8px;
}

.page-about .about-timeline {
  position: relative;
  border: 2px solid rgba(255, 255, 255, 0.14);
  background: rgba(11, 31, 58, 0.42);
  box-shadow: var(--shadow-hard);
  padding: 28px 20px 24px 40px;
}

.page-about .timeline-item {
  position: relative;
  margin-bottom: 32px;
}

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

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: -34px;
  left: 9px;
  width: 2px;
  background: linear-gradient(180deg, rgba(255, 215, 0, 0.45) 0%, rgba(255, 255, 255, 0.1) 100%);
}

.page-about .timeline-item:last-child::before {
  display: none;
}

.page-about .timeline-dot {
  position: absolute;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 3px solid var(--navy);
  background: linear-gradient(135deg, var(--gold), var(--orange));
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.28), 0 0 14px rgba(255, 107, 0, 0.4);
}

.page-about .timeline-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-about .timeline-year {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-about .timeline-body .panel {
  padding: 18px 20px;
}

.page-about .panel h3 {
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--white);
  margin: 0 0 8px;
}

.page-about .panel p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--about-muted);
}

.page-about .about-tech-grid {
  display: grid;
  gap: 28px;
  margin-top: 20px;
  align-items: center;
}

.page-about .about-tech-copy {
  display: grid;
  gap: 16px;
}

.page-about .about-tech-copy .panel {
  padding: 20px;
}

.page-about .about-tech-copy .panel-accent h3 {
  color: var(--orange);
}

.page-about .about-tech-ops {
  list-style: none;
  padding: 0;
  margin: 6px 0 0;
  display: grid;
  gap: 10px;
}

.page-about .about-tech-ops li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--about-muted);
}

.page-about .about-data-layout {
  display: grid;
  gap: 28px;
  margin-top: 20px;
  align-items: center;
}

.page-about .about-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

.page-about .about-stats-grid .stat {
  background: rgba(255, 255, 255, 0.06);
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-hard-sm);
  padding: 18px 12px;
  text-align: center;
}

.page-about .about-stats-grid .stat-value {
  display: block;
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--white);
}

.page-about .stat-unit {
  font-size: 0.68em;
  margin-left: 2px;
  color: var(--orange);
}

.page-about .about-stats-grid .stat-label {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--about-muted);
  margin-top: 6px;
}

.page-about .about-data-note {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--about-muted);
  border-left: 3px solid var(--orange);
  padding-left: 14px;
  margin: 0;
}

.page-about .about-philosophy-grid {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.page-about .about-philosophy-card {
  padding: 22px 20px;
}

.page-about .about-philosophy-card .coord {
  color: var(--gold);
}

.page-about .about-philosophy-card h3 {
  margin: 12px 0 8px;
  font-size: 1.25rem;
}

.page-about .about-philosophy-note {
  margin-top: 28px;
  padding: 20px;
  border: 2px solid rgba(255, 255, 255, 0.14);
  background: rgba(11, 31, 58, 0.4);
}

.page-about .about-philosophy-note p {
  margin: 0;
  color: var(--about-muted);
}

.page-about .about-philosophy-note p + p {
  margin-top: 12px;
}

.page-about .about-philosophy-note a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-about .about-tech-copy .panel,
.page-about .about-philosophy-card {
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

@media (hover: hover) {
  .page-about .about-tech-copy .panel:hover,
  .page-about .about-philosophy-card:hover {
    transform: translateY(-4px);
    border-color: var(--orange);
  }
}

@supports (animation-timeline: view()) {
  .page-about .timeline-dot {
    background: var(--gray-l);
    box-shadow: none;
    animation: about-dot-glow 0.6s ease both;
    animation-timeline: view();
    animation-range: entry 10% entry 55%;
  }
}

@keyframes about-dot-glow {
  from {
    background: var(--gray-l);
    box-shadow: none;
  }
  to {
    background: linear-gradient(135deg, var(--gold), var(--orange));
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.28), 0 0 18px rgba(255, 107, 0, 0.5);
  }
}

@media (min-width: 768px) {
  .page-about .about-cover {
    padding: 56px 0 64px;
  }

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

  .page-about .about-cover-console .console-line {
    flex-direction: column;
    gap: 6px;
    padding-left: 12px;
    border-left: 2px solid rgba(255, 107, 0, 0.5);
  }

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

@media (min-width: 1024px) {
  .page-about .about-cover {
    padding: 72px 0 80px;
  }

  .page-about .about-origin-grid {
    grid-template-columns: 1fr 400px;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-tech-grid {
    grid-template-columns: 560px 1fr;
    gap: 48px;
  }

  .page-about .about-tech-copy {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-tech-copy .panel:first-child {
    grid-column: 1 / -1;
  }

  .page-about .about-tech-ops {
    grid-column: 1 / -1;
  }

  .page-about .about-data-layout {
    grid-template-columns: 1fr 500px;
    gap: 48px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}