.page-about {
  --about-cut: 22px;
  --about-rail-w: 208px;
  background:
    radial-gradient(1100px 620px at 88% -6%, rgba(53, 214, 224, 0.12), transparent 62%),
    radial-gradient(760px 520px at -8% 46%, rgba(232, 180, 74, 0.07), transparent 68%),
    var(--ink-deep);
  color: var(--paper);
  overflow-x: clip;
}

.page-about .breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--nebula);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-about .breadcrumb a {
  color: var(--rail-cyan);
  text-decoration: none;
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--cyan-bright);
}

.page-about .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--rail-cyan);
  margin: 0 0 14px;
}

/* ---------- hero ---------- */

.page-about .about-hero {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 6vw, 76px);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--line-strong), var(--line-soft) 46%, transparent);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 5.6vw, 3.4rem);
  line-height: 1.26;
  letter-spacing: 0.01em;
  margin: 0 0 20px;
  max-width: 24ch;
}

.page-about .about-hero .lead {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--paper-dim);
  max-width: 58ch;
  margin: 0 0 clamp(24px, 3vw, 34px);
}

.page-about .about-hero__facts {
  list-style: none;
  margin: 0 0 clamp(24px, 3vw, 34px);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-hero__facts li {
  background: var(--ink-deep);
  padding: 16px 12px 16px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-hero__facts .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  color: var(--gold-soft);
  line-height: 1;
}

.page-about .about-hero__facts span:last-child {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--nebula);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .about-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line-mid);
  border-top-color: var(--gold-line);
}

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

.page-about .media-frame figcaption {
  display: block;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--nebula);
}

/* ---------- .page-about grid ---------- */

.page-about .about-body {
  padding: clamp(44px, 7vw, 96px) 0 clamp(48px, 7vw, 104px);
}

.page-about .about-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
}

.page-about .about-rail {
  position: relative;
}

.page-about .about-rail__title {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--nebula);
  margin: 0 0 18px;
}

.page-about .about-rail__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-rail__nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  font-size: 0.8125rem;
  color: var(--paper-dim);
  text-decoration: none;
  border: 1px solid var(--line-soft);
  clip-path: polygon(9px 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%, 0 9px);
  transition: color 0.35s var(--ease), border-color 0.35s var(--ease), background-color 0.35s var(--ease);
}

.page-about .about-rail__nav a:hover,
.page-about .about-rail__nav a:focus-visible {
  color: var(--cyan-bright);
  border-color: var(--line-strong);
  background: rgba(53, 214, 224, 0.06);
}

.page-about .about-rail__idx {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--star-gold);
  letter-spacing: 0.08em;
}

/* ---------- sections ---------- */

.page-about .about-section + .about-section {
  margin-top: clamp(48px, 7vw, 92px);
}

.page-about .section-head {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-about .section-head h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  line-height: 1.4;
  letter-spacing: 0.01em;
  margin: 0;
  max-width: 30ch;
}

/* ---------- paper card ---------- */

.page-about .paper-card {
  position: relative;
  background: var(--paper);
  color: var(--ink-text);
  padding: clamp(24px, 3.4vw, 44px);
  clip-path: polygon(
    var(--about-cut) 0,
    100% 0,
    100% calc(100% - var(--about-cut)),
    calc(100% - var(--about-cut)) 100%,
    0 100%,
    0 var(--about-cut)
  );
}

.page-about .paper-card p {
  font-size: 1rem;
  line-height: 1.85;
  margin: 0 0 18px;
}

.page-about .paper-card p:last-child {
  margin-bottom: 0;
}

.page-about .paper-card__lead {
  border-left: 3px solid var(--star-gold);
  padding-left: 16px;
  color: #2c333f;
}

.page-about .note-strip {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 12px 0 12px 18px;
  border-left: 1px solid var(--gold-line);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--nebula);
  max-width: 62ch;
}

.page-about .note-strip--alt {
  border-left-color: var(--line-mid);
  margin-top: clamp(22px, 3vw, 32px);
}

/* ---------- team ---------- */

.page-about .team-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
}

.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px 0;
}

.page-about .team-col {
  position: relative;
  padding-left: 20px;
  transition: transform 0.5s var(--ease);
}

.page-about .team-col::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  bottom: 2px;
  width: 1px;
  background: var(--line-mid);
  transform: skewX(-14deg);
  transform-origin: top;
  transition: background-color 0.45s var(--ease);
}

.page-about .team-col:hover::before,
.page-about .team-col:focus-within::before {
  background: var(--gold-line);
}

.page-about .team-col:hover,
.page-about .team-col:focus-within {
  transform: translateY(-4px);
}

.page-about .team-col__name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.125rem;
  letter-spacing: 0.02em;
  margin: 0 0 8px;
  color: var(--paper);
}

.page-about .team-col__line {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--cyan-bright);
  margin: 0 0 12px;
}

.page-about .team-col__duties {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .team-col__duties li {
  position: relative;
  padding-left: 14px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-about .team-col__duties li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 5px;
  height: 1px;
  background: var(--rail-cyan);
}

.page-about .team-figure {
  margin: 0;
  border: 1px solid var(--line-soft);
}

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

/* ---------- bilingual ---------- */

.page-about .bilingual-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: start;
}

.page-about .bilingual-text p {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--paper-dim);
  margin: 0 0 18px;
}

.page-about .bilingual-text p:last-child {
  margin-bottom: 0;
}

.page-about .bilingual-card {
  background: var(--indigo);
  border: 1px solid var(--line-soft);
  border-top-color: var(--gold-line);
  padding: clamp(20px, 2.6vw, 30px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-about .bilingual-card__title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin: 0 0 16px;
}

.page-about .tick-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .tick {
  position: relative;
  padding-left: 20px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-about .tick::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 10px;
  height: 1px;
  background: var(--rail-cyan);
}

/* ---------- timeline ---------- */

.page-about .about-years {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-years__item {
  position: relative;
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 18px;
  padding: 0 0 clamp(24px, 3.4vw, 38px) 22px;
  border-left: 1px solid var(--line-soft);
}

.page-about .about-years__item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-about .about-years__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--star-gold);
  box-shadow: 0 0 0 4px rgba(232, 180, 74, 0.14);
  transition: background-color 0.5s var(--ease), box-shadow 0.5s var(--ease);
}

.page-about .about-years__item:hover::before,
.page-about .about-years__item:focus-within::before {
  background: var(--cyan-bright);
  box-shadow: 0 0 0 6px rgba(127, 231, 238, 0.16);
}

.page-about .about-years__year {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.125rem;
  letter-spacing: 0.06em;
  color: var(--gold-soft);
  margin: 0;
  line-height: 1.4;
}

.page-about .about-years__body h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.0625rem;
  letter-spacing: 0.01em;
  margin: 0 0 8px;
  color: var(--paper);
}

.page-about .about-years__body p {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--nebula);
  margin: 0;
  max-width: 56ch;
}

/* ---------- coverage ---------- */

.page-about .metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}

.page-about .metric {
  border-bottom: 1px solid var(--line-mid);
  padding-bottom: 16px;
}

.page-about .metric__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1;
  color: var(--gold-soft);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.page-about .metric__suffix {
  font-size: 0.45em;
  margin-left: 4px;
  color: var(--star-gold);
}

.page-about .metric__unit {
  font-size: 0.875rem;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-about .metric__note {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--nebula);
  margin: 0;
}

.page-about .coverage-text {
  margin: clamp(24px, 3.2vw, 36px) 0 clamp(24px, 3.2vw, 36px);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--paper-dim);
  max-width: 62ch;
}

.page-about .coverage-figure {
  margin: 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-soft);
}

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

/* ---------- longterm ---------- */

.page-about .longterm-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: start;
}

.page-about .longterm-text p {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--paper-dim);
  margin: 0 0 18px;
}

.page-about .longterm-text p:last-child {
  margin-bottom: 0;
}

.page-about .quarter-list {
  list-style: none;
  margin: 0;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--indigo);
  border-left: 2px solid var(--gold-line);
  display: grid;
  gap: 16px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about .quarter-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  align-items: baseline;
}

.page-about .quarter-item__idx {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--rail-cyan);
}

.page-about .quarter-item__text {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--paper-dim);
}

/* ---------- next step band ---------- */

.page-about .about-next {
  margin-top: clamp(48px, 7vw, 92px);
  padding-top: clamp(26px, 3.4vw, 40px);
  border-top: 1px solid var(--line-strong);
}

.page-about .about-next__title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.625rem);
  color: var(--paper);
  margin: 0 0 clamp(20px, 2.6vw, 28px);
}

.page-about .about-next__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .next-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px;
  text-decoration: none;
  border: 1px solid var(--line-soft);
  background: rgba(16, 26, 51, 0.6);
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}

.page-about .next-link:hover,
.page-about .next-link:focus-visible {
  border-color: var(--gold-line);
  transform: translateY(-3px);
}

.page-about .next-link__label {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  color: var(--gold-soft);
}

.page-about .next-link__desc {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--nebula);
}

/* ---------- responsive ---------- */

@media (min-width: 700px) {
  .page-about .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 32px);
    row-gap: 32px;
  }

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

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

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(40px, 5vw, 80px);
  }

  .page-about .bilingual-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr);
  }

  .page-about .longterm-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-about .about-years__item {
    grid-template-columns: 92px 1fr;
    gap: 26px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-body__grid {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: clamp(36px, 4.5vw, 72px);
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--head-desktop) + 28px);
    align-self: start;
  }

  .page-about .about-rail__title {
    display: block;
  }

  .page-about .about-rail__nav {
    flex-direction: column;
    gap: 2px;
    border-left: 1px solid var(--line-soft);
  }

  .page-about .about-rail__nav a {
    border: 0;
    padding: 10px 0 10px 16px;
    clip-path: none;
    background: transparent;
    position: relative;
  }

  .page-about .about-rail__nav a::before {
    content: "";
    position: absolute;
    left: -3px;
    top: 50%;
    width: 5px;
    height: 5px;
    margin-top: -2.5px;
    border-radius: 50%;
    background: var(--line-strong);
    transition: background-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
  }

  .page-about .about-rail__nav a:hover::before,
  .page-about .about-rail__nav a[aria-current="true"]::before {
    background: var(--star-gold);
    box-shadow: 0 0 0 4px rgba(232, 180, 74, 0.16);
  }

  .page-about .about-rail__nav a:hover,
  .page-about .about-rail__nav a:focus-visible {
    background: transparent;
  }
}

@media (min-width: 1180px) {
  .page-about .team-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }

  .page-about .team-grid {
    column-gap: clamp(22px, 2.6vw, 34px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-col,
  .page-about .next-link,
  .page-about .team-col::before,
  .page-about .about-years__item::before,
  .page-about .about-rail__nav a::before {
    transition-duration: 0.15s;
    transform: none;
  }

  .page-about .team-col:hover,
  .page-about .team-col:focus-within,
  .page-about .next-link:hover,
  .page-about .next-link:focus-visible {
    transform: none;
  }
}