.page-about {
  background: var(--c-night);
  color: var(--c-poster);
}

.page-about .about-hero {
  position: relative;
  padding-block: clamp(30px, 5vw, 58px) clamp(38px, 6vw, 76px);
  border-bottom: var(--hair) solid var(--line-soft);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(53, 242, 214, 0.14), transparent 58%),
    linear-gradient(180deg, rgba(21, 74, 102, 0.55), transparent 66%),
    var(--c-night);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 12px;
  background: repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 44px);
  opacity: 0.75;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 12px;
  background: repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 44px);
  opacity: 0.45;
  pointer-events: none;
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-about .about-hero-title {
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.6vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
  color: var(--c-poster);
}

.page-about .about-hero-main .eyebrow {
  color: var(--c-cyan);
  letter-spacing: 0.16em;
}

.page-about .about-lede {
  margin: 20px 0 0;
  max-width: 44ch;
  font-size: clamp(0.98rem, 2.2vw, 1.1rem);
  line-height: 1.85;
  color: var(--c-ice);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero-side {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: var(--line-soft);
  border: var(--hair) solid var(--line-soft);
}

.page-about .about-hero-figure {
  background: var(--c-ink);
}

.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line-soft);
}

.page-about .about-fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 14px 16px;
  background: rgba(13, 42, 68, 0.92);
}

.page-about .about-fact-num {
  order: -1;
  margin: 0;
  font-family: var(--f-mono);
  font-size: clamp(1.3rem, 3.4vw, 1.75rem);
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-fact-label {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--c-ice);
}

.page-about .about-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 48px);
  padding-block: var(--pad-block);
}

.page-about .about-index {
  border-top: var(--hair) solid var(--line-soft);
  padding-top: 16px;
}

.page-about .about-index-eyebrow {
  margin: 0 0 10px;
  color: var(--c-steel);
  letter-spacing: 0.18em;
}

.page-about .about-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-about .about-index-link {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  align-items: baseline;
  padding: 9px 8px 9px 10px;
  border-left: 2px solid transparent;
  color: var(--c-ice);
  font-size: 0.88rem;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-about .about-index-link .mono {
  font-size: 0.74rem;
  color: var(--c-steel);
}

.page-about .about-index-link:hover,
.page-about .about-index-link:focus-visible {
  color: var(--c-poster);
  border-left-color: var(--c-cyan);
  background: rgba(53, 242, 214, 0.07);
}

.page-about .about-index-link:hover .mono,
.page-about .about-index-link:focus-visible .mono {
  color: var(--c-cyan);
}

.page-about .about-index-years {
  margin-top: 22px;
  padding-top: 14px;
  border-top: var(--hair) dashed var(--line-soft);
}

.page-about .about-index-years .eyebrow {
  margin: 0 0 8px;
  color: var(--c-steel);
  letter-spacing: 0.18em;
}

.page-about .about-index-year-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-index-year {
  display: inline-block;
  padding: 4px 10px;
  border: var(--hair) solid var(--line-soft);
  font-family: var(--f-mono);
  font-size: 0.8rem;
  color: var(--c-ice);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-about .about-index-year:hover,
.page-about .about-index-year:focus-visible {
  color: var(--c-night);
  background: var(--c-cyan);
  border-color: var(--c-cyan);
}

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

.page-about .about-section {
  margin-block-end: clamp(46px, 6vw, 84px);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-about .about-section:last-child {
  margin-block-end: 0;
}

.page-about .about-section > .eyebrow {
  color: var(--c-steel);
  letter-spacing: 0.18em;
  margin: 0;
}

.page-about .about-section-title {
  margin: 12px 0 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.6vw, 2.15rem);
  line-height: 1.24;
  letter-spacing: -0.005em;
  color: var(--c-poster);
}

.page-about .about-section-note {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--c-ice);
}

.page-about .about-aside {
  margin-top: 20px;
  padding: 14px 16px;
  background: rgba(221, 247, 244, 0.1);
  border-left: 2px solid var(--c-cyan);
  font-size: 0.88rem;
  line-height: 1.78;
  color: var(--c-poster);
}

.page-about .about-aside-key {
  display: inline-block;
  margin-right: 10px;
  color: var(--c-cyan);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
}

.page-about .about-archive-figure,
.page-about .about-team-figure {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  background: var(--c-ink);
  border: var(--hair) solid var(--line-soft);
}

.page-about .about-timeline {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0 0 0 clamp(18px, 3vw, 30px);
  border-left: var(--hair) solid var(--line-soft);
  display: grid;
  gap: clamp(26px, 3.6vw, 40px);
}

.page-about .about-year {
  position: relative;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-about .about-year::before {
  content: "";
  position: absolute;
  top: 10px;
  left: calc(-1 * clamp(18px, 3vw, 30px) - 5px);
  width: 9px;
  height: 9px;
  background: var(--c-cyan);
  transition: transform var(--t-mid) var(--ease), background-color var(--t-mid) var(--ease);
}

.page-about .about-year:hover::before,
.page-about .about-year:focus-within::before {
  background: var(--c-orange);
  transform: scale(1.35);
}

.page-about .about-year-num {
  margin: 0;
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(2.1rem, 6.4vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--c-poster);
  font-variant-numeric: tabular-nums;
}

.page-about .about-year-title {
  margin: 12px 0 0;
  font-size: 1.04rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-poster);
}

.page-about .about-year-text {
  margin: 10px 0 0;
  max-width: 58ch;
  font-size: 0.94rem;
  line-height: 1.82;
  color: var(--c-ice);
}

.page-about .about-year .about-aside {
  margin-top: 14px;
  background: rgba(21, 74, 102, 0.55);
  border-left-color: var(--c-broadcast);
}

.page-about .about-ratio {
  margin-top: clamp(24px, 3.4vw, 36px);
}

.page-about .about-ratio-bar {
  display: flex;
  height: 58px;
  border: var(--hair) solid var(--line-soft);
  background: var(--c-ink);
  overflow: hidden;
}

.page-about .about-ratio-seg {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.92rem;
  color: var(--c-night);
  border-right: var(--hair) solid var(--c-night);
  transition: filter var(--t-fast) var(--ease), opacity var(--t-fast) var(--ease);
}

.page-about .about-ratio-seg:last-child {
  border-right: 0;
}

.page-about .about-seg-a {
  width: 47%;
  background: var(--c-cyan);
}

.page-about .about-seg-b {
  width: 31%;
  background: var(--c-orange);
}

.page-about .about-seg-c {
  width: 22%;
  background: var(--c-poster);
}

.page-about .about-ratio-seg:hover,
.page-about .about-ratio-seg:focus-visible {
  filter: brightness(1.12);
}

.page-about .about-ratio-list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
}

.page-about .about-ratio-item {
  display: grid;
  grid-template-columns: 10px 1fr auto;
  column-gap: 10px;
  row-gap: 5px;
  align-items: center;
  padding: 15px 0;
  border-bottom: var(--hair) dashed var(--line-soft);
}

.page-about .about-ratio-dot {
  width: 9px;
  height: 9px;
}

.page-about .about-dot-a {
  background: var(--c-cyan);
}

.page-about .about-dot-b {
  background: var(--c-orange);
}

.page-about .about-dot-c {
  background: var(--c-poster);
}

.page-about .about-ratio-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-poster);
}

.page-about .about-ratio-count {
  font-size: 0.82rem;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-ratio-desc {
  grid-column: 2 / -1;
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--c-ice);
}

.page-about .about-team-figure .media-caption,
.page-about .about-archive-figure .media-caption {
  padding: 10px 12px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--c-steel);
  background: var(--c-ink);
}

.page-about .about-steps {
  list-style: none;
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-about .about-step {
  padding-top: 14px;
  border-top: var(--hair) solid var(--line-soft);
  transition: border-color var(--t-fast) var(--ease);
}

.page-about .about-step:hover {
  border-top-color: var(--c-cyan);
}

.page-about .about-step-num {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

.page-about .about-step-title {
  margin: 10px 0 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-poster);
}

.page-about .about-step-text {
  margin: 8px 0 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--c-ice);
}

.page-about .about-scenes {
  list-style: none;
  margin: clamp(22px, 3.2vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: var(--hair) solid var(--line-soft);
}

.page-about .about-scene {
  padding: 18px 16px 20px;
  background: rgba(13, 42, 68, 0.9);
  transition: background-color var(--t-fast) var(--ease);
}

.page-about .about-scene:hover {
  background: rgba(21, 74, 102, 0.9);
}

.page-about .about-scene-tag {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--c-orange);
}

.page-about .about-scene-title {
  margin: 10px 0 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-poster);
}

.page-about .about-scene-text {
  margin: 8px 0 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--c-ice);
}

.page-about .about-cta-section {
  padding-top: clamp(28px, 4vw, 44px);
  border-top: var(--hair) solid var(--line-soft);
}

.page-about .about-cta-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(20px, 3vw, 28px);
  background: var(--line-soft);
  border: var(--hair) solid var(--line-soft);
}

.page-about .about-cta-card {
  display: grid;
  gap: 6px;
  padding: 22px 18px 24px;
  background: rgba(13, 42, 68, 0.9);
  text-decoration: none;
  transition: background-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-about .about-cta-card:hover,
.page-about .about-cta-card:focus-visible {
  background: rgba(21, 74, 102, 0.92);
  transform: translateY(-2px);
}

.page-about .about-cta-num {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--c-cyan);
}

.page-about .about-cta-title {
  font-family: var(--f-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-poster);
}

.page-about .about-cta-text {
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--c-ice);
}

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

@media (min-width: 640px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-about .about-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-cta-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-about .about-body {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--header-h) + 22px);
  }

  .page-about .about-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-about .about-body {
    grid-template-columns: 260px minmax(0, 1fr);
  }

  .page-about .about-cta-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index-link,
  .page-about .about-index-year,
  .page-about .about-year::before,
  .page-about .about-ratio-seg,
  .page-about .about-step,
  .page-about .about-scene,
  .page-about .about-cta-card {
    transition: none;
  }

  .page-about .about-cta-card:hover,
  .page-about .about-cta-card:focus-visible {
    transform: none;
  }
}