.page-about {
  --about-gold-soft: rgba(212, 175, 55, 0.14);
  --about-red-soft: rgba(139, 0, 0, 0.08);
  --about-card-bg: #ffffff;
  --about-line: rgba(11, 61, 46, 0.14);

  background: var(--white);
}

.page-about .section + .section {
  border-top: 1px solid var(--about-line);
}

.page-about .split-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-about .split-layout__aside {
  min-width: 0;
}

.page-about .split-layout__main {
  min-width: 0;
}

.page-about .breadcrumb {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 18px 20px 0;
  font-family: var(--body-font);
  font-size: 13px;
  color: var(--mid-gray);
}

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

.page-about .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--mid-gray);
  opacity: 0.8;
}

.page-about .breadcrumb__item a {
  color: var(--primary-green);
  text-decoration: none;
}

.page-about .breadcrumb__item a:hover {
  color: var(--gold);
}

.page-about .breadcrumb__item[aria-current="page"] {
  color: var(--primary-green);
  font-weight: 700;
}

.page-about .about-hero {
  grid-template-columns: 1fr;
}

.page-about .about-hero__intro {
  padding: 32px 4px 8px;
}

.page-about .about-hero h1 {
  font-family: var(--heading-font);
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--primary-green);
  margin: 12px 0 18px;
  max-width: 12em;
}

.page-about .about-hero__lead {
  font-family: var(--body-font);
  font-size: 17px;
  line-height: 1.75;
  color: var(--dark-gray);
  max-width: 42em;
  margin: 0 0 26px;
}

.page-about .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 18px;
}

.page-about .btn-row .btn {
  text-decoration: none;
  font-family: var(--heading-font);
  font-size: 15px;
  letter-spacing: 0.04em;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.page-about .btn-row .btn:hover {
  transform: translateY(-2px);
}

.page-about .about-hero__note {
  font-family: var(--body-font);
  font-size: 13px;
  color: var(--mid-gray);
  margin: 8px 0 0;
  letter-spacing: 0.02em;
}

.page-about .about-hero__aside {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: stretch;
  padding: 8px 0 28px;
  position: relative;
}

.page-about .about-hero__aside .rotate-note {
  position: absolute;
  top: -6px;
  right: 0;
  font-family: var(--heading-font);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--gold);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  text-transform: uppercase;
}

.page-about .about-hero__aside .stat-card {
  flex: 1 1 160px;
  background: var(--light-gray);
  border-radius: var(--radius-lg);
  padding: 26px 22px 22px;
  border-left: 5px solid var(--gold);
  box-shadow: var(--shadow-soft);
}

.page-about .stat-card__value {
  font-family: var(--heading-font);
  font-size: 44px;
  font-weight: 700;
  color: var(--primary-green);
  display: block;
  line-height: 1;
}

.page-about .stat-card__label {
  display: block;
  font-size: 14px;
  font-family: var(--body-font);
  color: var(--dark-gray);
  margin-top: 10px;
  letter-spacing: 0.06em;
}

.page-about .section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--heading-font);
  font-size: 15px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 14px;
  font-weight: 600;
}

.page-about .section-label::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--gold);
}

.page-about .section-label--on-dark {
  color: var(--gold);
}

.page-about .section-label--on-dark::before {
  background: var(--gold);
}

.page-about .about-toc-wrap {
  position: sticky;
  top: 140px;
  align-self: start;
}

.page-about .editorial-toc {
  background: var(--light-gray);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  box-shadow: var(--shadow-soft);
  border-left: 4px solid var(--gold);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-about .editorial-toc .section-label {
  margin-bottom: 6px;
}

.page-about .editorial-toc__anchor {
  font-family: var(--heading-font);
  font-size: 17px;
  color: var(--primary-green);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.page-about .editorial-toc__anchor:hover {
  background: var(--about-gold-soft);
  color: var(--primary-green);
  transform: translateX(4px);
}

.page-about .editorial-toc__anchor.is-current {
  background: var(--primary-green);
  color: #fff;
}

.page-about h2 {
  font-family: var(--heading-font);
  font-size: clamp(30px, 4.5vw, 42px);
  line-height: 1.18;
  color: var(--primary-green);
  margin: 0 0 20px;
}

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

.page-about .about-identity__text p {
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--dark-gray);
  margin-bottom: 16px;
}

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

.page-about .about-identity__text strong {
  color: var(--primary-green);
}

.page-about .marginal-note {
  background: var(--cream);
  border-radius: var(--radius-md);
  border-left: 5px solid var(--gold);
  padding: 20px 22px;
  font-family: var(--body-font);
}

.page-about .marginal-note__title {
  font-family: var(--heading-font);
  font-size: 16px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary-green);
  margin: 0 0 12px;
}

.page-about .marginal-note ul {
  margin: 0;
  padding: 0 0 0 18px;
  color: var(--dark-gray);
}

.page-about .marginal-note li {
  margin-bottom: 8px;
  line-height: 1.6;
  font-size: 14px;
}

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

.page-about .marginal-note--on-dark {
  background: rgba(255, 255, 255, 0.06);
  border-left-color: var(--gold);
  color: var(--light-gray);
}

.page-about .marginal-note--on-dark p,
.page-about .marginal-note--on-dark li {
  color: var(--light-gray);
}

.page-about .section.bg-dark {
  background: var(--primary-green);
  color: var(--light-gray);
  padding-top: 80px;
  padding-bottom: 80px;
}

.page-about .about-dark-title {
  color: #fff;
}

.page-about .about-dark-desc {
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 26px;
}

.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 26px;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 20px;
  bottom: 20px;
  width: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, var(--gold) 0%, rgba(212, 175, 55, 0.3) 100%);
}

.page-about .timeline__item {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  align-items: start;
}

.page-about .timeline__marker {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary-green);
  border: 3px solid var(--gold);
  color: var(--gold);
  font-family: var(--heading-font);
  font-size: 17px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 6px rgba(212, 175, 55, 0.18);
  position: relative;
  z-index: 1;
}

.page-about .timeline__card {
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  transition: transform 0.2s ease, background 0.2s ease;
}

.page-about .timeline__card:hover {
  background: rgba(255, 255, 255, 0.11);
  transform: translateY(-3px);
}

.page-about .timeline__card h3 {
  font-family: var(--heading-font);
  font-size: 21px;
  color: var(--gold);
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}

.page-about .timeline__card p {
  font-family: var(--body-font);
  font-size: 15px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.88);
  margin: 0;
}

.page-about .about-figure {
  margin: 34px 0 0;
}

.page-about .about-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lift);
  display: block;
}

.page-about .about-figure figcaption {
  font-family: var(--body-font);
  font-size: 13px;
  color: var(--mid-gray);
  text-align: right;
  padding-top: 10px;
  letter-spacing: 0.03em;
}

.page-about .about-section-desc {
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--dark-gray);
  max-width: 36em;
  margin: 0;
}

.page-about .about-culture__intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 30px;
}

.page-about .about-culture__desc p {
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--dark-gray);
  margin-bottom: 14px;
}

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

.page-about .about-culture__motto {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}

.page-about .tag {
  display: inline-block;
  font-family: var(--heading-font);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  font-weight: 600;
}

.page-about .tag--gold {
  background: var(--about-gold-soft);
  color: var(--gold);
  border: 1px solid var(--gold);
}

.page-about .tag--green {
  background: rgba(38, 167, 107, 0.12);
  color: var(--bright-green);
  border: 1px solid rgba(38, 167, 107, 0.4);
}

.page-about .people-tree {
  background: var(--light-gray);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  margin-bottom: 26px;
}

.page-about .people-tree__root {
  font-family: var(--heading-font);
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-green);
  border-left: 6px solid var(--gold);
  padding-left: 16px;
  margin-bottom: 26px;
  letter-spacing: 0.02em;
}

.page-about .people-tree__branches {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .people-tree__group {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-soft);
}

.page-about .people-tree__group h3 {
  font-family: var(--heading-font);
  font-size: 18px;
  color: var(--dark-red);
  margin: 0 0 12px;
  letter-spacing: 0.04em;
}

.page-about .people-tree__group ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .people-tree__group li {
  font-family: var(--body-font);
  font-size: 15px;
  color: var(--dark-gray);
  padding: 8px 0 8px 16px;
  border-left: 2px solid var(--about-line);
  line-height: 1.5;
}

.page-about .credential-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 34px;
}

.page-about .credential-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--about-line);
  border-top: 4px solid var(--gold);
  padding: 24px 24px 22px;
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about .credential-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.page-about .credential-card h3 {
  font-family: var(--heading-font);
  font-size: 20px;
  letter-spacing: 0.03em;
  color: var(--primary-green);
  margin: 0 0 10px;
}

.page-about .credential-card p {
  font-family: var(--body-font);
  font-size: 15px;
  line-height: 1.65;
  color: var(--dark-gray);
  margin: 0;
}

.page-about .about-ecosystem {
  background: var(--light-gray);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
  margin-bottom: 34px;
}

.page-about .about-ecosystem h3 {
  font-family: var(--heading-font);
  font-size: 22px;
  color: var(--primary-green);
  margin: 0 0 14px;
}

.page-about .about-ecosystem p {
  font-family: var(--body-font);
  font-size: 15px;
  line-height: 1.7;
  color: var(--dark-gray);
  margin-bottom: 12px;
}

.page-about .about-ecosystem__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-ecosystem__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--body-font);
  font-size: 15px;
  color: var(--dark-gray);
  line-height: 1.6;
}

.page-about .about-statement {
  background: var(--cream);
  border-radius: calc(var(--radius-lg) + 6px);
  padding: 38px 32px;
  border-left: 8px solid var(--gold);
  margin: 20px 0 40px;
}

.page-about .about-statement .section-label::before {
  background: var(--gold);
}

.page-about .about-statement blockquote {
  margin: 18px 0 26px;
}

.page-about .about-statement blockquote p {
  font-family: var(--body-font);
  font-size: 18px;
  line-height: 1.8;
  color: var(--dark-gray);
  margin: 0;
}

.page-about .about-statement__footer {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-about .about-statement__footer .btn {
  text-decoration: none;
  font-family: var(--heading-font);
  font-size: 14px;
  letter-spacing: 0.04em;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-statement__footer .btn:hover {
  transform: translateY(-2px);
}

.page-about .about-statement__footer .btn--outline {
  border: 2px solid var(--primary-green);
  color: var(--primary-green);
  background: transparent;
}

@media (min-width: 360px) {
  .page-about .people-tree__branches {
    grid-template-columns: 1fr;
  }
}

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

@media (min-width: 820px) {
  .page-about .split-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
    gap: 56px;
  }

  .page-about .content-wide {
    padding-left: 40px;
    padding-right: 40px;
  }

  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 50px;
    align-items: center;
    padding-bottom: 40px;
  }

  .page-about .about-hero__aside {
    flex-direction: column;
    gap: 20px;
    padding: 0 0 0 30px;
    border-left: 2px solid var(--about-line);
  }

  .page-about .about-hero__aside .rotate-note {
    right: -28px;
    top: 8px;
  }

  .page-about .about-identity {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.7fr);
    gap: 40px;
    align-items: start;
  }

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

  .page-about .about-culture__intro {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
    gap: 36px;
  }

  .page-about .people-tree__branches {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1080px) {
  .page-about .split-layout {
    grid-template-columns: minmax(260px, 0.75fr) minmax(0, 1.7fr);
    gap: 72px;
  }
}