.page-about {
  --about-paper: #F5F0E6;
  --about-paper-2: #EDE6D9;
  --about-ink: #0B1D3A;
  --about-neon: #C8F135;
  --about-clay: #C67D5C;
  --about-moss: #5A7D6A;
  --about-hero-height: 100vh;
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 480px at 85% 8%, rgba(27, 58, 92, 0.72) 0%, rgba(11, 29, 58, 0) 60%),
    linear-gradient(150deg, #0B1D3A 0%, #0E2444 58%, #060E1A 100%);
  color: var(--color-text-light);
  padding: 32px 0 96px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -140px;
  width: 340px;
  height: 340px;
  border: 2px solid rgba(200, 241, 53, 0.22);
  border-radius: 50%;
  box-shadow:
    0 0 0 28px rgba(200, 241, 53, 0.04),
    0 0 0 58px rgba(200, 241, 53, 0.02);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 72px;
  background: linear-gradient(115deg, transparent 32%, var(--color-background) 32%);
  pointer-events: none;
  z-index: 2;
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 3;
  max-width: var(--container-max);
  margin: 0 auto;
}

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

.page-about .about-hero-meta .breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.82rem;
  color: rgba(245, 240, 230, 0.58);
}

.page-about .about-hero-meta .breadcrumb a {
  color: rgba(245, 240, 230, 0.58);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 240, 230, 0.28);
  transition: color 0.2s, border-color 0.2s;
}

.page-about .about-hero-meta .breadcrumb a:hover {
  color: var(--color-neon);
  border-color: var(--color-neon);
}

.page-about .about-hero-no {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: rgba(245, 240, 230, 0.34);
  letter-spacing: 0.08em;
}

.page-about .about-hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-neon);
  margin-bottom: 14px;
}

.page-about .about-hero-title {
  max-width: 860px;
  font-size: clamp(1.4rem, 2.6vw, 2.1rem);
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: rgba(245, 240, 230, 0.74);
  margin-bottom: 8px;
  font-family: var(--font-heading);
}

.page-about .about-hero-claim {
  font-family: var(--font-display);
  font-size: clamp(4.2rem, 14vw, 9.5rem);
  font-weight: 100;
  line-height: 0.96;
  letter-spacing: 0.02em;
  color: var(--color-text-light);
  margin: 8px 0 18px;
}

.page-about .about-hero-intro {
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(245, 240, 230, 0.82);
  margin-bottom: 0;
}

.page-about .about-preview {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid rgba(245, 240, 230, 0.2);
}

.page-about .about-preview-link {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 16px 0;
  text-decoration: none;
  color: var(--color-text-light);
  border-bottom: 1px solid rgba(245, 240, 230, 0.12);
  font-family: var(--font-heading);
  font-size: 1rem;
  transition: color 0.2s, background-color 0.2s;
}

.page-about .about-preview-link span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--color-neon);
}

.page-about .about-preview-link:hover {
  color: var(--color-neon);
  background: rgba(200, 241, 53, 0.05);
}

.page-about .about-story {
  background: var(--color-background);
  padding: 68px 0 76px;
}

.page-about .about-story .section-header {
  margin-bottom: 36px;
}

.page-about .about-story-layout {
  display: grid;
  gap: 32px;
}

.page-about .about-story-copy {
  border-left: 4px solid var(--color-accent-terracotta);
  padding-left: 24px;
}

.page-about .about-story-lead {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 2.2vw, 1.8rem);
  line-height: 1.5;
  color: var(--color-primary);
  margin-bottom: 22px;
}

.page-about .about-story-copy p {
  color: var(--color-secondary);
  line-height: 1.85;
  font-size: 0.95rem;
  margin-bottom: 14px;
}

.page-about .about-story-copy .tool-link {
  display: inline-block;
  margin-top: 8px;
  color: var(--color-accent-moss);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--color-accent-moss);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.page-about .about-story-copy .tool-link:hover {
  color: var(--color-accent-terracotta);
  border-color: var(--color-accent-terracotta);
}

.page-about .about-story-image {
  border: 2px solid var(--color-primary);
  box-shadow: 14px 14px 0 rgba(11, 29, 58, 0.1);
}

.page-about .about-milestones {
  background: var(--color-background-alt);
  padding: 68px 0 64px;
}

.page-about .about-milestones .section-header {
  margin-bottom: 20px;
}

.page-about .about-timeline {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  margin-top: 32px;
  padding: 20px 4px 28px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-accent-terracotta) rgba(11, 29, 58, 0.1);
  cursor: grab;
}

.page-about .about-timeline-item {
  flex: 0 0 286px;
  scroll-snap-align: start;
  background: var(--color-background);
  border: 2px solid var(--color-primary);
  box-shadow: 8px 8px 0 rgba(11, 29, 58, 0.1);
  padding: 26px 20px 20px;
  position: relative;
}

.page-about .about-timeline-item::before {
  content: "";
  position: absolute;
  top: -2px;
  right: 24px;
  width: 56px;
  height: 4px;
  background: var(--color-neon);
}

.page-about .about-timeline-year {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  border: 3px solid var(--color-accent-terracotta);
  background: var(--color-background);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.page-about .about-timeline h3 {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.page-about .about-timeline-item > p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--color-secondary);
}

.page-about .about-timeline-detail {
  margin-top: 16px;
  border-top: 1px dashed rgba(11, 29, 58, 0.22);
  padding-top: 12px;
}

.page-about .about-timeline-detail summary {
  cursor: pointer;
  list-style: none;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-accent-terracotta);
  font-family: var(--font-heading);
  user-select: none;
}

.page-about .about-timeline-detail summary::-webkit-details-marker {
  display: none;
}

.page-about .about-timeline-detail summary::before {
  content: "＋";
  display: inline-block;
  margin-right: 6px;
  font-family: var(--font-mono);
}

.page-about .about-timeline-detail[open] summary::before {
  content: "－";
}

.page-about .about-timeline-detail p {
  margin-top: 10px;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--color-secondary);
}

.page-about .about-timeline-hint {
  margin-top: 10px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-secondary);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-about .about-data {
  background: var(--color-background);
  padding: 68px 0 76px;
}

.page-about .about-data .section-header {
  margin-bottom: 36px;
}

.page-about .about-data-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

.page-about .about-data-item {
  background: var(--color-background-alt);
  border: 2px solid var(--color-primary);
  box-shadow: 10px 10px 0 rgba(11, 29, 58, 0.08);
  padding: 34px 16px 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-about .about-data-item::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 84px;
  height: 84px;
  background: var(--color-neon);
  opacity: 0.12;
  transform: rotate(45deg);
}

.page-about .about-data-item:nth-child(even) {
  border-top-color: var(--color-accent-terracotta);
}

.page-about .about-data-figure {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.page-about .about-data-value {
  display: block;
  font-size: clamp(3rem, 7vw, 4.8rem);
  line-height: 1;
  color: var(--color-primary);
}

.page-about .about-data-suffix {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-accent-terracotta);
}

.page-about .about-data-label {
  margin-top: 10px;
  font-size: 0.92rem;
  color: var(--color-secondary);
  font-weight: 500;
}

.page-about .about-data-art {
  margin-top: 24px;
  aspect-ratio: 3 / 2;
  border: 3px solid var(--color-primary);
  box-shadow: 18px 18px 0 rgba(11, 29, 58, 0.08);
}

.page-about .about-data-note {
  margin-top: 28px;
  border-left: 3px solid var(--color-accent-moss);
  padding-left: 18px;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--color-secondary);
}

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

.page-about .about-data-note .tool-link {
  color: var(--color-accent-moss);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--color-accent-moss);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.page-about .about-data-note .tool-link:hover {
  color: var(--color-accent-terracotta);
  border-color: var(--color-accent-terracotta);
}

.page-about .about-promise {
  background: var(--color-background-alt);
  padding: 68px 0 76px;
}

.page-about .about-promise .section-header {
  margin-bottom: 36px;
}

.page-about .about-promise-layout {
  display: grid;
  gap: 32px;
}

.page-about .about-promise-lead {
  font-family: var(--font-heading);
  font-size: 1.28rem;
  color: var(--color-primary);
  margin-bottom: 20px;
  line-height: 1.5;
}

.page-about .about-promise-list {
  list-style: none;
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.page-about .about-promise-list li {
  position: relative;
  padding-left: 24px;
  line-height: 1.75;
  font-size: 0.94rem;
  color: var(--color-secondary);
}

.page-about .about-promise-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 12px;
  height: 4px;
  background: var(--color-accent-terracotta);
}

.page-about .about-promise-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-promise-image {
  border: 2px solid var(--color-primary);
  box-shadow: 16px 16px 0 rgba(11, 29, 58, 0.1);
}

.page-about .about-story-image img,
.page-about .about-data-art img,
.page-about .about-promise-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .about-contact {
  background:
    linear-gradient(160deg, transparent 58%, rgba(200, 241, 53, 0.04) 58%),
    var(--color-primary-dark);
  color: var(--color-text-light);
  padding: 68px 0 76px;
}

.page-about .about-contact .section-header {
  margin-bottom: 36px;
}

.page-about .about-contact .section-title {
  color: var(--color-text-light);
}

.page-about .about-contact .section-index {
  color: var(--color-neon);
}

.page-about .about-contact-grid {
  display: grid;
  gap: 14px;
}

.page-about .about-contact-item {
  background: rgba(245, 240, 230, 0.04);
  border: 1px solid rgba(245, 240, 230, 0.16);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .about-contact-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-neon);
}

.page-about .about-contact-value {
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--color-text-light);
  overflow-wrap: break-word;
  word-break: break-word;
}

.page-about .about-contact-note {
  margin-top: 28px;
  max-width: 72ch;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(245, 240, 230, 0.72);
  border-top: 1px solid rgba(245, 240, 230, 0.14);
  padding-top: 20px;
}

.page-about .about-legal-links {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.page-about .about-legal-links a {
  color: var(--color-neon);
  font-size: 0.88rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 241, 53, 0.4);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.page-about .about-legal-links a:hover {
  color: var(--color-text-light);
  border-color: var(--color-text-light);
}

.page-about .about-contact-actions {
  margin-top: 28px;
}

.page-about .about-contact-icp {
  margin-top: 32px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: rgba(245, 240, 230, 0.5);
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 48px 0 128px;
  }

  .page-about .about-hero-meta {
    margin-bottom: 40px;
  }

  .page-about .about-preview {
    grid-template-columns: repeat(5, 1fr);
    margin-top: 56px;
  }

  .page-about .about-preview-link {
    justify-content: center;
    padding: 18px 12px;
    border-bottom: 0;
    border-right: 1px solid rgba(245, 240, 230, 0.16);
  }

  .page-about .about-preview-link:last-child {
    border-right: 0;
  }

  .page-about .about-story {
    padding: 88px 0 96px;
  }

  .page-about .about-story-layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
  }

  .page-about .about-milestones {
    padding: 88px 0 76px;
  }

  .page-about .about-timeline-item {
    flex-basis: 312px;
  }

  .page-about .about-data {
    padding: 88px 0 96px;
  }

  .page-about .about-data-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .page-about .about-data-art {
    margin-top: 36px;
  }

  .page-about .about-promise {
    padding: 88px 0 96px;
  }

  .page-about .about-promise-layout {
    grid-template-columns: 1fr 0.78fr;
    gap: 56px;
    align-items: center;
  }

  .page-about .about-contact {
    padding: 88px 0 96px;
  }

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

@media (min-width: 1080px) {
  .page-about .about-data-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}