.page-about {
  --about-line: rgba(201, 162, 39, 0.32);
  --about-border: rgba(242, 239, 230, 0.1);
  --about-wash: rgba(242, 239, 230, 0.03);
  background: var(--pitch);
  color: var(--paper);
}

.page-about section[id],
.page-about article[id] {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-about .breadcrumb {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 1rem 1.5rem 0;
  font-size: 0.8rem;
  color: var(--sage);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.page-about .breadcrumb__link {
  color: var(--sage);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.page-about .breadcrumb__sep {
  color: var(--sage);
  opacity: 0.6;
}

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

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(242, 239, 230, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 239, 230, 0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  gap: 2rem;
  padding: 3.5rem 1.5rem 3rem;
}

.page-about .about-hero__kicker {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  color: var(--gold);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.page-about .about-hero__title {
  font-size: clamp(1.65rem, 4.5vw, 3.1rem);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  max-width: 12em;
}

.page-about .about-hero__lead {
  color: var(--sage);
  font-size: 1rem;
  line-height: 1.85;
  max-width: 38em;
  margin-bottom: 2rem;
  border-left: 3px solid var(--gold);
  padding-left: 1rem;
}

.page-about .about-hero__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--about-border);
}

.page-about .about-hero__metric {
  display: flex;
  flex-direction: column;
  padding: 0.35rem 0;
}

.page-about .about-hero__number {
  font-family: var(--font-data);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -0.03em;
}

.page-about .about-hero__caption {
  font-size: 0.78rem;
  color: var(--sage);
  letter-spacing: 0.12em;
}

.page-about .about-hero__map {
  position: relative;
  display: none;
  align-items: center;
  justify-content: center;
  min-height: 380px;
}

.page-about .about-hero__svg {
  width: min(100%, 420px);
  height: auto;
  background: rgba(11, 26, 22, 0.55);
  border: 1px solid rgba(201, 162, 39, 0.18);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}

.page-about .about-hero__vnote {
  position: absolute;
  right: 0.25rem;
  bottom: 2.5rem;
  writing-mode: vertical-rl;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  color: var(--sage);
  opacity: 0.7;
}

.page-about .about-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  padding: 1.5rem 1.5rem 0;
}

.page-about .about-jump__link {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--sage);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-jump__link span {
  color: var(--gold);
  font-size: 0.65rem;
}

.page-about .about-jump__link:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-about .about-heading {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  margin-bottom: 2.5rem;
  position: relative;
}

.page-about .about-heading .chapter-no {
  font-family: var(--font-data);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 0.9;
  color: var(--gold);
  letter-spacing: -0.05em;
  min-width: 0.8em;
}

.page-about .about-heading__text h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-about .chapter-label {
  margin: 0.5rem 0 0;
  color: var(--sage);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
}

.page-about .about-heading__vlabel {
  writing-mode: vertical-rl;
  font-family: var(--font-data);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.32em;
  color: var(--sage);
  border-left: 1px solid var(--about-line);
  padding-left: 0.55rem;
  margin-left: auto;
  align-self: stretch;
  min-height: 5rem;
  opacity: 0.75;
}

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

.page-about .about-archive__layout {
  display: grid;
  gap: 1.75rem;
}

.page-about .about-archive__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-about .about-archive__tab {
  font-family: var(--font-data);
  font-size: 0.82rem;
  color: var(--sage);
  text-decoration: none;
  border: 1px solid var(--about-border);
  padding: 0.5rem 1rem;
  transition: all 0.2s ease;
  position: relative;
}

.page-about .about-archive__tab::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--gold);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.page-about .about-archive__tab:hover,
.page-about .about-archive__tab:focus {
  color: var(--gold);
  border-color: var(--about-line);
}

.page-about .about-archive__tab:hover::before,
.page-about .about-archive__tab:focus::before {
  opacity: 1;
}

.page-about .about-archive__body {
  display: grid;
  gap: 1.25rem;
}

.page-about .about-archive__card {
  background: rgba(242, 239, 230, 0.035);
  border: 1px solid var(--about-border);
  border-left: 3px solid var(--gold);
  padding: 1.5rem 1.5rem 1.75rem;
  position: relative;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.page-about .about-archive__card:hover,
.page-about .about-archive__card:target {
  background: rgba(29, 92, 74, 0.18);
  border-color: var(--about-line);
}

.page-about .about-archive__no {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--gold);
  letter-spacing: 0.14em;
  display: block;
  margin-bottom: 0.75rem;
}

.page-about .about-archive__card h3 {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.page-about .about-archive__card p {
  color: var(--sage);
  font-size: 0.95rem;
  line-height: 1.85;
  margin: 0;
}

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

.page-about .about-milestones__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-milestones__list::before {
  content: "";
  position: absolute;
  left: 0.9rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold), var(--teal));
  opacity: 0.5;
}

.page-about .about-milestones__item {
  position: relative;
  padding: 0 0 2rem 2.7rem;
}

.page-about .about-milestones__item::before {
  content: "";
  position: absolute;
  left: 0.55rem;
  top: 0.45rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--pitch);
  border: 2px solid var(--gold);
  z-index: 1;
  transition: background 0.2s ease, transform 0.2s ease;
}

.page-about .about-milestones__item:hover::before,
.page-about .about-milestones__item:focus-within::before {
  background: var(--gold);
  transform: scale(1.15);
}

.page-about .about-milestones__year {
  font-family: var(--font-data);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold);
  display: block;
  margin-bottom: 0.35rem;
}

.page-about .about-milestones__card {
  background: rgba(242, 239, 230, 0.05);
  border: 1px solid var(--about-border);
  border-radius: 0 12px 12px 0;
  padding: 1.1rem 1.25rem;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-about .about-milestones__item:hover .about-milestones__card,
.page-about .about-milestones__item:focus-within .about-milestones__card {
  border-color: var(--about-line);
  background: rgba(29, 92, 74, 0.22);
}

.page-about .about-milestones__card h3 {
  font-size: 1.05rem;
  margin: 0 0 0.4rem;
  font-weight: 700;
}

.page-about .about-milestones__card p {
  color: var(--sage);
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0;
}

.page-about .about-milestones__hint {
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  color: var(--gold);
  font-size: 0.85rem;
  line-height: 1.7;
  transition: max-height 0.35s ease, opacity 0.35s ease, margin 0.35s ease;
}

.page-about .about-milestones__item:hover .about-milestones__hint,
.page-about .about-milestones__item:focus-within .about-milestones__hint {
  max-height: 6em;
  opacity: 1;
  margin-top: 0.55rem;
  padding-top: 0.55rem;
  border-top: 1px dashed var(--about-line);
}

.page-about .about-milestones__item.is-highlight .about-milestones__card {
  border-left: 3px solid var(--gold);
}

.page-about .about-milestones__figure {
  margin-top: 1.5rem;
}

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

.page-about .about-coverage__layout {
  display: grid;
  gap: 2rem;
}

.page-about .about-coverage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-about .about-coverage__stat {
  background: rgba(242, 239, 230, 0.04);
  border: 1px solid var(--about-border);
  padding: 1.4rem 1.4rem 1.2rem;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
  cursor: default;
}

.page-about .about-coverage__stat:hover,
.page-about .about-coverage__stat:focus-within {
  background: rgba(29, 92, 74, 0.2);
  border-color: var(--about-line);
  transform: translateY(-3px);
}

.page-about .about-coverage__num {
  font-family: var(--font-data);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--gold);
  display: block;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.page-about .about-coverage__label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--paper);
  margin-top: 0.35rem;
}

.page-about .about-coverage__detail {
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  color: var(--sage);
  font-size: 0.83rem;
  line-height: 1.7;
  transition: max-height 0.3s ease, opacity 0.3s ease, margin 0.3s ease;
}

.page-about .about-coverage__stat:hover .about-coverage__detail,
.page-about .about-coverage__stat:focus-within .about-coverage__detail {
  max-height: 5em;
  opacity: 1;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--about-line);
}

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

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

.page-about .about-promise__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

.page-about .about-promise__card {
  background: rgba(242, 239, 230, 0.04);
  border: 1px solid var(--about-border);
  padding: 1.4rem 1.5rem;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.page-about .about-promise__card:hover {
  background: rgba(201, 162, 39, 0.08);
  border-color: var(--about-line);
}

.page-about .about-promise__symbol {
  display: block;
  font-family: var(--font-data);
  font-size: 1.35rem;
  color: var(--gold);
  margin-bottom: 0.8rem;
}

.page-about .about-promise__card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.55rem;
  font-weight: 700;
}

.page-about .about-promise__card p {
  color: var(--sage);
  font-size: 0.92rem;
  line-height: 1.8;
  margin: 0;
}

.page-about .about-promise__detail {
  margin-top: 1.75rem;
  border: 1px solid var(--about-border);
  background: rgba(11, 26, 22, 0.3);
}

.page-about .about-promise__detail summary {
  cursor: pointer;
  padding: 1.05rem 1.25rem;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--paper);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.page-about .about-promise__detail summary::after {
  content: "＋";
  font-family: var(--font-data);
  color: var(--gold);
  font-size: 1.1rem;
  transition: transform 0.25s ease;
}

.page-about .about-promise__detail[open] summary::after {
  transform: rotate(45deg);
}

.page-about .about-promise__detail p {
  margin: 0;
  padding: 0 1.25rem 1.25rem;
  color: var(--sage);
  font-size: 0.92rem;
  line-height: 1.85;
}

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

.page-about .about-team__layout {
  display: grid;
  gap: 2rem;
}

.page-about .about-team__lead {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--paper);
  border-left: 3px solid var(--gold);
  padding-left: 1.1rem;
  margin: 0 0 1.4rem;
}

.page-about .about-team__list {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-about .about-team__list li {
  color: var(--sage);
  font-size: 0.94rem;
  line-height: 1.7;
  padding-left: 1.1rem;
  position: relative;
}

.page-about .about-team__list li::before {
  content: "▪";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--gold);
}

.page-about .about-team__list span {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--gold);
}

.page-about .about-team__note {
  font-size: 0.85rem;
  color: var(--sage);
  line-height: 1.75;
  background: rgba(242, 239, 230, 0.035);
  padding: 0.9rem 1rem;
  border: 1px solid var(--about-border);
}

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

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

.page-about .about-cta__inner {
  display: grid;
  gap: 1.5rem;
  padding: 2rem 0;
}

.page-about .about-cta__text h2 {
  font-size: 1.6rem;
  font-weight: 900;
  margin: 0 0 0.6rem;
}

.page-about .about-cta__text p {
  color: var(--sage);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

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

.page-about .figure-frame {
  margin: 0;
}

@media (min-width: 768px) {
  .page-about .about-hero__inner {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    padding: 5rem 2rem 4rem;
  }

  .page-about .about-hero__map {
    display: flex;
  }

  .page-about .about-jump {
    padding-left: 2rem;
    padding-right: 2rem;
    justify-content: flex-end;
  }

  .page-about .about-archive__layout {
    grid-template-columns: 240px 1fr;
    gap: 2.5rem;
  }

  .page-about .about-archive__tabs {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    align-self: start;
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-about .about-archive__tab {
    padding: 0.75rem 1rem;
  }

  .page-about .about-archive__tab::before {
    width: 100%;
    height: 2px;
    top: auto;
    bottom: -1px;
    left: 0;
  }

  .page-about .about-milestones__list::before {
    left: 8rem;
  }

  .page-about .about-milestones__item {
    display: grid;
    grid-template-columns: 7rem 1fr;
    gap: 1.75rem;
    padding: 0 0 2rem 0;
  }

  .page-about .about-milestones__item::before {
    left: 7.56rem;
    top: 0.55rem;
  }

  .page-about .about-milestones__year {
    text-align: right;
    margin: 0;
    padding-top: 0.35rem;
  }

  .page-about .about-coverage__layout {
    grid-template-columns: 1fr 0.9fr;
    align-items: start;
  }

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

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

  .page-about .about-team__layout {
    grid-template-columns: 1fr 0.8fr;
    align-items: start;
  }

  .page-about .about-cta__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 2rem;
    padding: 3rem 0;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero__inner {
    padding: 6rem 2rem 5rem;
  }

  .page-about .about-hero__title {
    font-size: 3.4rem;
  }

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