.page-about {
  background: var(--ink);
  color: var(--ivory);
  scroll-behavior: smooth;
  overflow-x: hidden;
}

.page-about .about-head {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h) + 40px);
  padding-bottom: 48px;
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(90, 16, 38, 0.58) 0%, rgba(50, 8, 18, 0.22) 42%, transparent 68%),
    var(--ink);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-head__inner {
  display: grid;
  gap: 30px;
  align-items: center;
}

.page-about .about-head__kicker {
  margin: 18px 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--gold);
}

.page-about .about-head__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(34px, 8vw, 74px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--ivory);
}

.page-about .about-head__lead {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.85;
  color: var(--text-soft);
}

.page-about .about-head__meta {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-mute);
}

.page-about .about-head__meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line-gold);
}

.page-about .about-head__meta strong {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--gold);
}

.page-about .about-head__figure {
  margin: 0;
  padding: 6px;
  border: 1px solid var(--line-gold);
  background: var(--glass-soft);
}

.page-about .about-head__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-about .about-stage {
  padding: 56px 0 60px;
}

.page-about .about-stage--ink {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
}

.page-about .about-stage--ivory {
  background: var(--ivory);
  color: var(--ink);
  --text-soft: rgba(11, 11, 13, 0.8);
  --text-mute: rgba(11, 11, 13, 0.58);
  --line-soft: rgba(11, 11, 13, 0.16);
  --line-gold: rgba(155, 122, 63, 0.45);
}

.page-about .about-layout {
  display: grid;
  gap: 30px;
  align-items: start;
}

.page-about .about-rail {
  padding-left: 14px;
  border-left: 1px solid var(--line-gold);
}

.page-about .about-rail__kicker {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--gold-dim);
}

.page-about .about-rail__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
}

.page-about .about-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 0;
  font-size: 14px;
  line-height: 1.4;
  color: var(--text-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  color: var(--gold-dim);
  border-bottom-color: var(--gold);
}

.page-about .about-rail__num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold-dim);
}

.page-about .about-rail__years {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-about .about-rail__year {
  display: inline-block;
  padding: 4px 9px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-mute);
  text-decoration: none;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-about .about-rail__year:hover,
.page-about .about-rail__year:focus-visible {
  color: var(--ivory);
  background: var(--wine);
  border-color: var(--gold);
}

.page-about .about-chapter {
  padding-top: 36px;
  margin-top: 36px;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-about .about-chapter:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-about .about-chapter__num {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--gold-dim);
}

.page-about .about-chapter__title {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(24px, 4.4vw, 34px);
  line-height: 1.32;
  color: inherit;
}

.page-about .about-chapter__lead {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-about .about-text {
  margin: 0 0 16px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-about .about-text strong {
  font-weight: 600;
  color: inherit;
}

.page-about .about-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: 66ch;
}

.page-about .about-points li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-about .about-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 11px;
  height: 1px;
  background: var(--gold);
}

.page-about .about-points li strong {
  font-weight: 600;
  color: inherit;
}

.page-about .about-scenes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-scene {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--line-soft);
  background: var(--glass-soft);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .about-scene:hover {
  border-color: var(--line-gold);
  background: rgba(243, 235, 221, 0.09);
  transform: translateY(-2px);
}

.page-about .about-scene__index {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--gold-dim);
}

.page-about .about-scene__title {
  margin: 8px 0 8px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.45;
  color: inherit;
}

.page-about .about-scene__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  margin: 24px 0 26px;
}

.page-about .about-stat {
  padding: 18px 16px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--gold-dim);
  background: var(--glass-soft);
  outline: none;
  cursor: default;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-stat:hover,
.page-about .about-stat:focus-visible {
  background: rgba(90, 16, 38, 0.36);
  border-color: var(--line-gold);
  border-top-color: var(--gold);
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--serif);
  font-size: clamp(34px, 6vw, 46px);
  font-weight: 400;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-mute);
}

.page-about .about-stat__note {
  display: block;
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-soft);
  transition: max-height 0.28s var(--ease), opacity 0.22s var(--ease), margin-top 0.28s var(--ease);
}

.page-about .about-stat:hover .about-stat__note,
.page-about .about-stat:focus-visible .about-stat__note {
  max-height: 200px;
  margin-top: 12px;
  opacity: 1;
}

.page-about .about-figure {
  margin: 24px 0 0;
  padding: 6px;
  border: 1px solid var(--line-gold);
  background: var(--glass-soft);
}

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

.page-about .about-figure__caption {
  margin: 10px 2px 2px;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--text-mute);
}

.page-about .about-details {
  margin: 22px 0 0;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--gold-dim);
  background: var(--glass-soft);
}

.page-about .about-details summary {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 14px 18px;
  font-size: 14.5px;
  font-weight: 500;
  color: inherit;
  list-style: none;
  cursor: pointer;
}

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

.page-about .about-details summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1;
  color: var(--gold-dim);
}

.page-about .about-details[open] summary::after {
  content: "–";
}

.page-about .about-details summary:focus-visible {
  outline: 1px solid var(--gold);
  outline-offset: -3px;
}

.page-about .about-details__list {
  margin: 0;
  padding: 0 18px 16px;
  list-style: none;
  counter-reset: about-step;
}

.page-about .about-details__list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 9px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-about .about-details__list li:last-child {
  margin-bottom: 0;
}

.page-about .about-details__list li::before {
  counter-increment: about-step;
  content: counter(about-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.15em;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold-dim);
}

.page-about .about-timeline {
  list-style: none;
  margin: 24px 0 0;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--line-gold);
  display: grid;
  gap: 28px;
}

.page-about .about-era {
  position: relative;
  scroll-margin-top: calc(var(--header-h) + 32px);
}

.page-about .about-era::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 9px;
  width: 9px;
  height: 9px;
  background: var(--ivory);
  border: 1px solid var(--gold-dim);
  transform: rotate(45deg);
}

.page-about .about-era[data-state="current"]::before {
  background: var(--celadon);
  border-color: var(--celadon);
}

.page-about .about-era__date {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--gold-dim);
}

.page-about .about-era__title {
  margin: 6px 0 8px;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.45;
  color: inherit;
}

.page-about .about-era__text {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-about .about-facts {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-gold);
}

.page-about .about-facts li {
  display: grid;
  gap: 5px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-facts__key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold-dim);
}

.page-about .about-facts__val {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-about .about-record {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  margin-top: 28px;
  padding: 14px 0;
  border-top: 1px solid var(--line-gold);
  border-bottom: 1px solid var(--line-gold);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--text-mute);
}

.page-about .about-record__key {
  color: var(--gold-dim);
  letter-spacing: 0.26em;
}

.page-about .about-record__note {
  flex-basis: 100%;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0;
  line-height: 1.7;
}

.page-about .about-inline-link {
  color: var(--wine);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-dim);
  padding-bottom: 1px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--gold-dim);
  border-bottom-color: var(--wine);
}

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

.page-about .about-stage--ivory .mgm-btn--ghost {
  border-color: rgba(11, 11, 13, 0.32);
  color: var(--ink);
}

.page-about .about-stage--ivory .mgm-btn--ghost:hover,
.page-about .about-stage--ivory .mgm-btn--ghost:focus-visible {
  border-color: var(--wine);
  color: var(--wine);
}

@media (hover: none) {
  .page-about .about-stat__note {
    max-height: none;
    margin-top: 12px;
    opacity: 1;
  }
}

@media (min-width: 620px) {
  .page-about .about-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-facts li {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-about .about-head {
    padding-top: calc(var(--header-h) + 72px);
    padding-bottom: 72px;
  }

  .page-about .about-head__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-about .about-stage {
    padding: 72px 0 80px;
  }
}

@media (min-width: 960px) {
  .page-about .about-layout {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 84px);
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-about .about-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
    margin-bottom: 26px;
  }

  .page-about .about-rail__link {
    width: 100%;
    padding: 7px 0;
  }

  .page-about .about-chapter {
    padding-top: 44px;
    margin-top: 44px;
  }

  .page-about .about-chapter:first-child {
    padding-top: 0;
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about {
    scroll-behavior: auto;
  }

  .page-about .about-scene,
  .page-about .about-stat,
  .page-about .about-stat__note,
  .page-about .about-rail__link {
    transition: none;
  }

  .page-about .about-scene:hover {
    transform: none;
  }
}