.page-about {
  --page-green: #00C853;
  --page-cyan: #00F0FF;
  --page-carbon: #141A24;
  --page-silver: #C0C0C0;
  background: #0A0E17;
  color: #FFFFFF;
  overflow-x: hidden;
}

.page-about .page-about-breadcrumb {
  padding-top: 72px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.page-about .page-about-breadcrumb .breadcrumb-divider {
  margin: 0 10px;
  color: var(--text-muted);
}

.page-about .page-hero {
  position: relative;
  padding-top: 48px;
  padding-bottom: 80px;
}

.page-about .page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(192, 192, 192, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 192, 192, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.page-about .page-hero-grid {
  display: grid;
  gap: 48px;
  position: relative;
  z-index: 1;
  align-items: center;
}

.page-about .page-hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-about .page-hero-title {
  font-size: clamp(3.25rem, 13vw, 6.5rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 20px 0 24px;
}

.page-about .page-hero-title-main {
  display: block;
  background: linear-gradient(120deg, #FFFFFF 25%, #00F0FF 72%, #00C853 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-about .page-hero-subtitle {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.5;
  color: var(--page-cyan);
  margin-top: 20px;
  padding-left: 14px;
  border-left: 2px solid var(--page-green);
}

.page-about .page-hero .lede {
  font-size: 15px;
  line-height: 1.7;
  color: #B0BEC5;
  max-width: 36em;
  margin-bottom: 32px;
}

.page-about .page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.page-about .page-hero-visual {
  position: relative;
}

.page-about .page-hero-frame {
  border: 1px solid rgba(192, 192, 192, 0.18);
  padding: 8px;
  background: var(--page-carbon);
  position: relative;
  z-index: 1;
}

.page-about .page-hero-map {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .page-chapter-num {
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: 140px;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(192, 192, 192, 0.16);
  position: absolute;
  bottom: -16px;
  right: -4px;
  z-index: 0;
  pointer-events: none;
  user-select: none;
}

.page-about .page-section-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 48px;
  position: relative;
}

.page-about .page-section-head h2 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 12px 0 16px;
}

.page-about .page-section-head .track-line {
  width: 180px;
  max-width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--page-green), transparent);
  position: relative;
}

.page-about .page-data-section {
  position: relative;
  background: var(--page-carbon);
  border-top: 1px solid rgba(192, 192, 192, 0.1);
  border-bottom: 1px solid rgba(192, 192, 192, 0.1);
}

.page-about .page-data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 64px;
}

.page-about .page-data-card {
  background: #0A0E17;
  border: 1px solid rgba(192, 192, 192, 0.14);
  border-left: 3px solid var(--page-green);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  min-height: 150px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.page-about .page-data-card:hover {
  border-color: rgba(0, 240, 255, 0.4);
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.1), 0 8px 24px rgba(0, 0, 0, 0.4);
  transform: translateY(-4px);
}

.page-about .page-data-card--highlight {
  border-left-color: var(--page-cyan);
}

.page-about .page-data-value {
  font-family: var(--font-mono);
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1;
  color: var(--page-green);
  margin-bottom: 12px;
}

.page-about .page-data-card--highlight .page-data-value {
  color: var(--page-cyan);
}

.page-about .page-data-label {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 8px;
}

.page-about .page-data-desc {
  font-size: 13px;
  line-height: 1.6;
  color: #90A4AE;
  margin: 0;
}

.page-about .page-data-visual {
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-about .page-data-map {
  overflow: hidden;
}

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

.page-about .page-data-notes h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.page-about .page-data-notes p {
  font-size: 15px;
  line-height: 1.7;
  color: #B0BEC5;
  margin-bottom: 16px;
}

.page-about .page-data-notes .btn {
  margin-top: 8px;
}

.page-about .page-chapter-num--data {
  right: 8px;
  bottom: 8px;
}

.page-about .page-rule-layout {
  display: grid;
  gap: 48px;
}

.page-about .page-rule-timeline {
  position: relative;
  padding-left: 32px;
}

.page-about .page-rule-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--page-green), var(--page-cyan));
  opacity: 0.6;
}

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

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

.page-about .page-timeline-marker {
  position: absolute;
  left: -30px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--page-green);
  box-shadow: 0 0 0 4px rgba(0, 200, 83, 0.15), 0 0 16px rgba(0, 200, 83, 0.4);
}

.page-about .page-timeline-item--current .page-timeline-marker {
  background: var(--page-cyan);
  box-shadow: 0 0 0 4px rgba(0, 240, 255, 0.15), 0 0 20px rgba(0, 240, 255, 0.5);
}

.page-about .page-timeline-version {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--page-cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.page-about .page-timeline-item h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin: 8px 0 12px;
}

.page-about .page-timeline-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #B0BEC5;
  max-width: 40em;
}

.page-about .page-rule-visual {
  overflow: hidden;
}

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

.page-about .page-eco-section {
  position: relative;
  border-top: 1px solid rgba(192, 192, 192, 0.1);
}

.page-about .page-eco-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 56px;
}

.page-about .page-eco-card {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(192, 192, 192, 0.14);
  background: #0F151E;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about .page-eco-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 240, 255, 0.12);
}

.page-about .page-eco-card .badge {
  align-self: flex-start;
  margin-bottom: 20px;
}

.page-about .page-eco-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.page-about .page-eco-card p {
  font-size: 14px;
  line-height: 1.7;
  color: #B0BEC5;
  flex: 1;
  margin-bottom: 16px;
}

.page-about .page-eco-list {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px solid rgba(192, 192, 192, 0.1);
}

.page-about .page-eco-list li {
  padding: 8px 0 0 18px;
  font-size: 13px;
  color: #90A4AE;
  position: relative;
  font-family: var(--font-mono);
}

.page-about .page-eco-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--page-green);
}

.page-about .page-eco-card .btn {
  margin-top: 20px;
}

.page-about .page-story-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 32px;
  border-top: 1px solid rgba(192, 192, 192, 0.1);
}

@media (min-width: 768px) {
  .page-about .page-hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }

  .page-about .page-data-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

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

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

  .page-about .page-chapter-num {
    font-size: 220px;
    right: -8px;
  }

  .page-about .page-eco-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
}

@media (min-width: 1200px) {
  .page-about .page-hero {
    padding-top: 56px;
    padding-bottom: 120px;
  }

  .page-about .page-hero-title {
    font-size: 7.5rem;
  }

  .page-about .page-hero .lede {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
  }

  .page-about .page-data-card:hover,
  .page-about .page-eco-card:hover {
    transform: none;
  }
}