.page-about {
  --about-gap: clamp(1.25rem, 3.5vw, 3rem);
  --about-card-pad: clamp(1rem, 2.4vw, 1.4rem);
  --about-lead: clamp(1rem, 2.2vw, 1.125rem);
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
}

.page-about [id^="chapter-"] {
  scroll-margin-top: calc(var(--header-bar-h) + var(--header-nav-h) + 1rem);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(1rem, 4vw, 2.25rem) 0 clamp(2rem, 5vw, 3.25rem);
  background-image: radial-gradient(circle at 1px 1px, rgba(29, 78, 137, 0.14) 1px, transparent 0);
  background-size: 22px 22px;
  background-position: 0 0;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-about .about-hero__copy .breadcrumbs {
  margin-bottom: clamp(1rem, 3vw, 1.6rem);
}

.page-about .about-hero__copy .eyebrow {
  margin: 0 0 0.6rem;
  color: var(--orange);
  font-weight: 700;
  letter-spacing: 0.14em;
}

.page-about .about-hero h1 {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-size: clamp(1.9rem, 6.2vw, 3.25rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--navy-deep);
}

.page-about .about-hero .lede {
  margin: 0;
  max-width: 34em;
  font-size: var(--about-lead);
  line-height: 1.8;
  color: var(--ink);
}

.page-about .about-hero__stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  margin: 1.6rem 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--line);
}

.page-about .about-hero__num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.3rem, 4vw, 1.6rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--navy);
}

.page-about .about-hero__label {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.8rem;
  color: var(--sage);
}

.page-about .about-hero__figure {
  margin: 0;
}

/* ---------- Split shell ---------- */
.page-about .about-shell {
  display: grid;
  gap: var(--about-gap);
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
}

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

.page-about .about-rail .rail-nav {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: thin;
}

.page-about .about-rail .rail-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  flex: 0 0 auto;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  font-size: 0.88rem;
  color: var(--navy-deep);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-rail .rail-nav__link:hover,
.page-about .about-rail .rail-nav__link.is-current {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.page-about .about-rail .rail-nav__num {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  opacity: 0.72;
}

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

/* ---------- Chapters ---------- */
.page-about .about-chapter {
  padding-top: clamp(1.25rem, 3vw, 1.9rem);
  border-top: 2px solid var(--navy);
}

.page-about .about-chapter + .about-chapter {
  margin-top: clamp(2.25rem, 6vw, 3.75rem);
}

.page-about .about-chapter__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  column-gap: 0.85rem;
  margin-bottom: 1rem;
}

.page-about .about-chapter__num {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(1.5rem, 4.5vw, 2.2rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--navy);
}

.page-about .about-chapter__title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 3.6vw, 1.7rem);
  line-height: 1.35;
  color: var(--navy-deep);
}

.page-about .about-chapter__lead {
  margin: 0 0 1rem;
  font-size: var(--about-lead);
  line-height: 1.8;
  color: var(--ink);
  border-left: 3px solid var(--orange-soft);
  padding-left: 0.85rem;
}

.page-about .about-body p {
  margin: 0 0 1rem;
  line-height: 1.8;
  color: var(--ink);
}

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

.page-about .about-body h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-deep);
}

.page-about .about-body a {
  color: var(--navy);
  text-decoration-color: var(--orange-soft);
  text-underline-offset: 3px;
}

.page-about .about-body a:hover {
  color: var(--orange-dark);
}

/* ---------- Principle cards (glass) ---------- */
.page-about .about-principles {
  list-style: none;
  display: grid;
  gap: 0.8rem;
  margin: 1.5rem 0 0;
  padding: 0;
}

.page-about .about-principle {
  padding: var(--about-card-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(6px);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-about .about-principle:hover,
.page-about .about-principle:focus-within {
  transform: translateY(-2px);
  border-color: var(--orange);
  box-shadow: var(--shadow-soft);
}

.page-about .about-principle p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ink);
}

/* ---------- Timeline ---------- */
.page-about .about-history__figure {
  margin: 0 0 1.5rem;
}

.page-about .about-timeline {
  list-style: none;
  position: relative;
  display: grid;
  gap: 1.2rem;
  margin: 0;
  padding: 0;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(var(--navy), var(--orange-soft));
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 0.9rem;
  align-items: start;
  padding-left: 2rem;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cream);
  border: 3px solid var(--navy);
  box-sizing: border-box;
}

.page-about .about-timeline__item--now::before {
  background: var(--orange);
  border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(232, 112, 42, 0.18);
}

.page-about .about-timeline__year {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--navy);
  padding-top: 0.15rem;
}

.page-about .about-timeline__item--now .about-timeline__year {
  color: var(--orange-dark);
}

.page-about .about-timeline__body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
}

.page-about .about-note {
  margin-top: 1.4rem;
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--sage);
  background: var(--mint);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- Team ---------- */
.page-about .about-team {
  display: grid;
  gap: 1.25rem;
  margin: 1.25rem 0 1.25rem;
}

.page-about .about-team__figure {
  margin: 0;
}

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

.page-about .about-team__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 0.85rem;
  align-items: start;
  padding: 0.9rem 1rem;
  background: var(--mint);
  border-radius: var(--radius);
  border-left: 4px solid var(--sage);
}

.page-about .about-team__n {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--navy);
}

.page-about .about-team__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---------- Checks ---------- */
.page-about .about-checks {
  list-style: none;
  display: grid;
  gap: 0.9rem;
  margin: 1.25rem 0 0;
  padding: 0;
  counter-reset: none;
}

.page-about .about-checks__item {
  padding: var(--about-card-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  border-top: 3px solid var(--navy);
}

.page-about .about-checks__num {
  display: inline-block;
  margin-bottom: 0.4rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-about .about-checks__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-about .about-care__link {
  margin-top: 1.1rem;
  font-size: 0.92rem;
}

/* ---------- Partner & region ---------- */
.page-about .about-partner {
  display: grid;
  gap: 0.9rem;
  margin: 1.25rem 0;
}

.page-about .about-partner__item {
  padding: var(--about-card-pad);
  background: var(--mint);
  border-radius: var(--radius);
  border: 1px solid rgba(90, 125, 107, 0.28);
}

.page-about .about-partner__n {
  display: block;
  font-family: var(--mono);
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  color: var(--navy);
  margin-bottom: 0.3rem;
}

.page-about .about-partner__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-about .about-region {
  padding: var(--about-card-pad);
  border: 1px dashed rgba(29, 78, 137, 0.4);
  border-radius: var(--radius);
  background: var(--cream);
}

.page-about .about-region p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- Actions ---------- */
.page-about .about-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.page-about .about-actions__link {
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--navy);
}

.page-about .about-actions__link:hover {
  color: var(--orange-dark);
}

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

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

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

  .page-about .about-team {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: clamp(1.5rem, 4vw, 3.5rem);
  }
}

@media (min-width: 1000px) {
  .page-about .about-shell {
    grid-template-columns: 210px minmax(0, 1fr);
    align-items: start;
    column-gap: clamp(1.75rem, 4vw, 3.25rem);
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-bar-h) + var(--header-nav-h) + 1.25rem);
  }

  .page-about .about-rail .rail-nav {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    border-left: 2px solid var(--line);
    gap: 0.2rem;
  }

  .page-about .about-rail .rail-nav__link {
    justify-content: flex-start;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: transparent;
    padding: 0.5rem 0.75rem;
    margin-left: -2px;
    white-space: normal;
  }

  .page-about .about-rail .rail-nav__link:hover,
  .page-about .about-rail .rail-nav__link.is-current {
    background: rgba(29, 78, 137, 0.08);
    border-left-color: var(--navy);
    color: var(--navy-deep);
  }

  .page-about .about-timeline {
    gap: 1.4rem;
  }
}
<<<END>>>