.page-about {
  --about-gap: clamp(1.5rem, 4vw, 3rem);
  --about-rail: 2px;
  --about-dot: 11px;
  color: var(--paper);
  background: var(--ink);
  overflow-x: clip;
}

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

.page-about .about-crumb-wrap {
  padding-top: clamp(1rem, 3vw, 2rem);
}

.page-about .about-hero {
  position: relative;
  padding: clamp(2rem, 5vw, 4rem) 0 clamp(3rem, 7vw, 6rem);
  border-bottom: var(--about-rail) solid var(--line);
  isolation: isolate;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: auto -12% -10% 38%;
  height: 78%;
  background: linear-gradient(140deg, rgba(242, 193, 78, 0.16), rgba(36, 26, 61, 0.5) 55%, transparent 78%);
  clip-path: polygon(18% 0, 100% 0, 100% 100%, 0 100%);
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero__spine {
  display: none;
}

.page-about .about-hero__grid {
  display: grid;
  gap: var(--about-gap);
  align-items: end;
}

.page-about .about-hero__title {
  margin: 0.6rem 0 1rem;
  font-size: clamp(2rem, 6.4vw, 3.9rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-about .about-hero__lede {
  max-width: 56ch;
  color: var(--paper-dim);
}

.page-about .about-hero__note {
  margin: 1rem 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--gold);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 52ch;
}

.page-about .about-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.75rem;
  margin: 1.75rem 0 0;
  padding: 1.1rem 0 0;
  list-style: none;
  border-top: 2px solid var(--line);
}

.page-about .about-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.page-about .about-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-about .about-hero__unit {
  font-size: 0.8125rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-about .about-hero__figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-about .about-hero__figure img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.page-about .about-hero__figure .media-caption {
  padding: 0.7rem 0.9rem;
  border-top: 2px solid var(--line);
  background: var(--ink-deep);
}

.page-about .sec-head {
  display: grid;
  gap: 0.75rem;
  max-width: 62ch;
  margin-bottom: clamp(1.75rem, 4vw, 3rem);
}

.page-about .sec-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.page-about .sec-head h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.05em;
  color: var(--paper);
}

.page-about .about-origin {
  border-bottom: 2px solid var(--line);
}

.page-about .about-origin__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-origin__title {
  margin: 0 0 1rem;
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.page-about .about-origin__main p {
  margin: 0 0 1rem;
  max-width: 60ch;
  color: var(--paper-dim);
  line-height: 1.85;
}

.page-about .about-origin__link,
.page-about .about-eco__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding-bottom: 0.25rem;
  font-weight: 700;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .about-origin__link:hover,
.page-about .about-origin__link:focus-visible,
.page-about .about-eco__link:hover,
.page-about .about-eco__link:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-about .about-origin__panel {
  padding: 1.25rem;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-about .about-origin__panel-label {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-about .about-origin__list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-origin__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.7rem;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--paper-dim);
}

.page-about .about-origin__list .mono {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding-top: 0.2rem;
}

.page-about .about-timeline {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
  border-bottom: 2px solid var(--line);
}

.page-about .about-timeline__layout {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-timeline__aside {
  display: grid;
  gap: 0.9rem;
  align-content: start;
}

.page-about .about-timeline__figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-about .about-timeline__figure img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  opacity: 0.85;
}

.page-about .about-timeline__aside-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-about .about-timeline__list {
  position: relative;
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0 0 0 1.75rem;
  list-style: none;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 0.5rem;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, var(--line) 55%, rgba(18, 59, 82, 0.2) 100%);
}

.page-about .tl-node {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1rem 1.1rem 1.15rem;
  background: var(--panel);
  border: 2px solid var(--line);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .tl-node::before {
  content: "";
  position: absolute;
  left: calc(-1.25rem - 5.5px);
  top: 1.65rem;
  width: var(--about-dot);
  height: var(--about-dot);
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(7, 26, 43, 0.9);
}

.page-about .tl-node:hover,
.page-about .tl-node:focus-within {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: 8px 8px 0 rgba(36, 26, 61, 0.6);
}

.page-about .tl-node__index {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  line-height: 1;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-about .tl-node__years {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-about .tl-node__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.0625rem, 2.4vw, 1.25rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .tl-node__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--paper-dim);
}

.page-about .tl-node__extra {
  margin: 0.65rem 0 0;
  padding-top: 0.65rem;
  border-top: 1px dashed var(--line);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
  transition: color var(--dur) var(--ease);
}

.page-about .tl-node:hover .tl-node__extra,
.page-about .tl-node:focus-within .tl-node__extra {
  color: var(--paper-dim);
}

.page-about .about-team__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-team__figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--panel-2);
}

.page-about .about-team__figure img {
  width: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-about .about-team__figure .media-caption {
  padding: 0.7rem 0.9rem;
  border-top: 2px solid var(--line);
  background: var(--ink-deep);
}

.page-about .about-team__stats {
  display: grid;
  gap: 1rem;
}

.page-about .stat-card {
  padding: 1.05rem 1.15rem 1.15rem;
  background: var(--panel-2);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .stat-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
}

.page-about .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.85rem, 5vw, 2.6rem);
  line-height: 1;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-about .stat-title {
  margin: 0.6rem 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-about .stat-text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-reach {
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.page-about .sec-head--wide {
  max-width: 74ch;
}

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

.page-about .reach-item {
  padding: 1.1rem 1rem 1.2rem;
  background: var(--ink-deep);
}

.page-about .reach-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4.4vw, 2.35rem);
  line-height: 1.05;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-about .reach-item--cyan .reach-num {
  color: var(--cyan);
}

.page-about .reach-label {
  margin: 0.55rem 0 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-reach__note {
  max-width: 66ch;
  margin: 1.5rem 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--cyan);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-about .about-eco {
  background: var(--teal);
  border-bottom: 2px solid var(--line);
}

.page-about .about-eco__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .eyebrow--light {
  color: var(--gold);
}

.page-about .about-eco__main h2 {
  margin: 0.5rem 0 1rem;
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: 0.05em;
  color: var(--paper);
}

.page-about .about-eco__main p {
  margin: 0 0 1rem;
  max-width: 58ch;
  line-height: 1.85;
  color: var(--paper-dim);
}

.page-about .about-eco__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-content: start;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-papers__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-papers__card {
  padding: 1.25rem 1.25rem 1.4rem;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-about .about-papers__card--flat {
  background: transparent;
  box-shadow: none;
  border-style: dashed;
}

.page-about .about-papers__card h2 {
  margin: 0 0 1rem;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-about .about-papers__list {
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.page-about .papers-row {
  display: grid;
  gap: 0.2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.page-about .papers-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .papers-row dt {
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-about .papers-row dd {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-about .about-papers__hint {
  margin: 1rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-principles__list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: principle;
}

.page-about .principle {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.5rem 1rem;
  padding: 1.4rem 0;
  border-top: 2px solid var(--line);
}

.page-about .principle:last-child {
  border-bottom: 2px solid var(--line);
}

.page-about .principle__index {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  padding-top: 0.25rem;
}

.page-about .principle__title {
  margin: 0 0 0.4rem;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--paper);
}

.page-about .principle__body p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--muted);
  max-width: 54ch;
}

.page-about .about-next {
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-about .about-next__title {
  margin: 0 0 clamp(1.25rem, 3vw, 2rem);
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-about .about-next__grid {
  display: grid;
  gap: 1rem;
}

.page-about .next-card {
  display: block;
  padding: 1.25rem;
  background: var(--panel);
  border: 2px solid var(--line);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .next-card--wide {
  background: var(--panel-2);
  border-color: var(--gold);
}

.page-about .next-card:hover,
.page-about .next-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--orange);
  box-shadow: 8px 8px 0 rgba(36, 26, 61, 0.6);
}

.page-about .next-card__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.page-about .next-card h3 {
  margin: 0.5rem 0 0.4rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--paper);
}

.page-about .next-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .next-card__go {
  display: inline-block;
  margin-top: 0.9rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

@media (min-width: 640px) {
  .page-about .about-team__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-timeline__list {
    padding-left: 2rem;
  }

  .page-about .tl-node::before {
    left: calc(-1.5rem - 5.5px);
  }

  .page-about .about-reach__numbers {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .about-timeline__layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    align-items: start;
    gap: clamp(1.75rem, 4vw, 3.5rem);
  }

  .page-about .about-timeline__aside {
    position: sticky;
    top: 2rem;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

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

  .page-about .about-eco__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .about-papers__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

  .page-about .about-principles__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.75rem, 4vw, 3.5rem);
  }

  .page-about .about-next__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 1100px) {
  .page-about .about-hero__spine {
    display: block;
    position: absolute;
    top: 32%;
    left: 0.75rem;
    margin: 0;
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.42em;
    color: var(--muted);
    opacity: 0.8;
  }

  .page-about .about-timeline__list {
    padding-left: 2.25rem;
    gap: 1.15rem;
  }

  .page-about .tl-node {
    padding: 1.15rem 1.35rem 1.3rem;
  }

  .page-about .tl-node:nth-child(even) {
    margin-left: clamp(1.5rem, 4vw, 3.5rem);
  }

  .page-about .tl-node::before {
    left: calc(-1.75rem - 5.5px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-node,
  .page-about .stat-card,
  .page-about .next-card,
  .page-about .tl-node__extra,
  .page-about .about-origin__link,
  .page-about .about-eco__link {
    transition: none;
  }

  .page-about .tl-node:hover,
  .page-about .tl-node:focus-within,
  .page-about .stat-card:hover,
  .page-about .next-card:hover,
  .page-about .next-card:focus-visible {
    transform: none;
  }
}