.page-about {
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-hero {
  display: grid;
  gap: 30px;
  padding: 6px 0 44px;
}

.page-about .hero-copy h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 7vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--ink);
  max-width: 18ch;
}

.page-about .about-lede {
  margin: 18px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.7vw, 1.12rem);
  line-height: 1.9;
  color: var(--ink-70);
  max-width: 46ch;
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--line-soft);
  border: 1px solid var(--line);
  border-top: 3px solid var(--flame);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .hero-facts > div {
  background: var(--paper);
  padding: 16px 18px;
}

.page-about .hero-facts dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--teal-deep);
}

.page-about .hero-facts dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 1.32rem;
  color: var(--ink);
  line-height: 1.2;
}

.page-about .about-map {
  padding-bottom: 64px;
}

.page-about .about-rail {
  margin-bottom: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-about .rail-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--teal-deep);
}

.page-about .about-index {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px 2px 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-index li {
  flex: 0 0 auto;
}

.page-about .about-index .index-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: var(--paper);
  color: var(--ink-70);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .about-index .index-link .y {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--teal-deep);
}

.page-about .about-index .index-link:hover,
.page-about .about-index .index-link:focus-visible {
  border-color: var(--flame);
  color: var(--ink);
  outline: none;
}

.page-about .about-index .index-link[data-active="true"] {
  background: var(--flame-soft);
  border-color: var(--flame);
  color: var(--ink);
}

.page-about .about-index .index-link[data-active="true"] .y {
  color: var(--flame-deep);
}

.page-about .chapter {
  padding: 38px 0 42px;
  border-top: 1px solid var(--line-soft);
}

.page-about .chapter:first-child {
  border-top: 0;
  padding-top: 6px;
}

.page-about .chapter-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.page-about .chapter-num {
  flex: 0 0 auto;
  display: inline-block;
  padding: 4px 8px;
  border-radius: var(--radius-s);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about .chapter-text .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 4.4vw, 1.95rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .chapter-text .section-lede {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-70);
  max-width: 40ch;
}

.page-about .prose {
  max-width: 62ch;
}

.page-about .prose p {
  margin: 0 0 16px;
  font-size: 1rem;
  line-height: 1.92;
  color: var(--ink-70);
}

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

.page-about .media-frame {
  margin: 0 0 24px;
  padding: 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--cold);
}

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

.page-about .media-caption {
  padding: 10px 4px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-60);
}

.page-about .team-bar {
  display: flex;
  gap: 2px;
  height: 14px;
  margin-bottom: 12px;
  border-radius: var(--pill);
  overflow: hidden;
  background: var(--cold);
}

.page-about .team-bar span {
  display: block;
}

.page-about .team-bar .seg-a {
  flex: 9;
  background: var(--flame);
}

.page-about .team-bar .seg-b {
  flex: 5;
  background: var(--teal);
}

.page-about .team-bar .seg-c {
  flex: 8;
  background: var(--ink-2);
}

.page-about .team-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--ink-60);
}

.page-about .team-legend li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.page-about .team-legend .dot {
  width: 9px;
  height: 9px;
  border-radius: 2px;
  display: inline-block;
}

.page-about .team-legend .dot-a {
  background: var(--flame);
}

.page-about .team-legend .dot-b {
  background: var(--teal);
}

.page-about .team-legend .dot-c {
  background: var(--ink-2);
}

.page-about .team-cards {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-about .team-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--paper);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-about .team-card:hover,
.page-about .team-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--flame);
  box-shadow: var(--shadow-1);
}

.page-about .team-card:focus-visible {
  outline: 2px solid var(--flame);
  outline-offset: 3px;
  background: var(--haze);
}

.page-about .team-name {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--flame-deep);
}

.page-about .team-line {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-about .team-more {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-60);
}

.page-about .scale-wrap {
  display: grid;
  gap: 26px;
}

.page-about .stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .stat {
  background: var(--paper);
  padding: 16px;
}

.page-about .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 4.2vw, 1.55rem);
  line-height: 1.2;
  color: var(--ink);
}

.page-about .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-60);
}

.page-about .scale-note {
  margin-top: 22px;
  padding-left: 16px;
  border-left: 2px solid var(--haze);
}

.page-about .ver-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.page-about .ver-card {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--teal);
  border-radius: var(--radius-s) var(--radius-m) var(--radius-m) var(--radius-s);
  background: var(--paper);
  transition: border-color 0.24s var(--ease), box-shadow 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-about .ver-card:hover,
.page-about .ver-card:focus-within {
  border-left-color: var(--flame);
  background: var(--paper);
  box-shadow: var(--shadow-1);
}

.page-about .ver-card:focus-visible {
  outline: 2px solid var(--flame);
  outline-offset: 3px;
  background: var(--haze);
}

.page-about .ver-year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--teal-deep);
  padding-top: 2px;
}

.page-about .ver-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.02rem;
  line-height: 1.4;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.page-about .ver-line {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-70);
}

.page-about .ver-more {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-60);
}

.page-about .eco {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-about .eco-map {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .eco-map .eco-links line {
  stroke: var(--line);
  stroke-width: 1.5;
  stroke-dasharray: 4 5;
}

.page-about .eco-map text {
  font-family: var(--font-body);
  font-size: 13px;
  fill: var(--teal-deep);
  text-anchor: middle;
}

.page-about .eco-map circle {
  fill: var(--haze);
  stroke: var(--teal);
  stroke-width: 1.5;
}

.page-about .eco-map .eco-core {
  fill: var(--flame);
  stroke: var(--flame-deep);
}

.page-about .eco-map .eco-core-label {
  fill: var(--paper);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  text-anchor: middle;
}

.page-about .honor-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-about .honor-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-s);
  background: var(--cold);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-70);
}

.page-about .honor-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--flame-deep);
  background: var(--paper);
  border-radius: var(--pill);
  padding: 3px 9px;
}

.page-about .about-next {
  margin-top: 8px;
  padding: 34px 22px;
  border-radius: var(--radius-l);
  background: linear-gradient(150deg, var(--paper) 0%, var(--haze) 58%, var(--cold) 100%);
  border: 1px solid var(--line);
}

.page-about .about-next .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 4.2vw, 1.8rem);
  line-height: 1.25;
  color: var(--ink);
}

.page-about .next-lede {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-70);
  max-width: 52ch;
}

.page-about .next-links {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .next-links a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius-s);
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .next-links a:hover,
.page-about .next-links a:focus-visible {
  border-color: var(--flame);
  transform: translateX(3px);
  outline: none;
}

.page-about .next-links a:focus-visible {
  outline: 2px solid var(--flame);
  outline-offset: 3px;
}

.page-about .next-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--paper);
  background: var(--teal-deep);
  border-radius: var(--pill);
  padding: 3px 9px;
}

.page-about .next-text {
  font-size: 15px;
  color: var(--ink-70);
}

@media (min-width: 600px) {
  .page-about .stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-about .team-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .team-more,
  .page-about .ver-more {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    margin-top: 0;
    transition: max-height 0.28s var(--ease), opacity 0.2s var(--ease), margin-top 0.28s var(--ease);
  }

  .page-about .team-card:hover .team-more,
  .page-about .team-card:focus-within .team-more,
  .page-about .ver-card:hover .ver-more,
  .page-about .ver-card:focus-within .ver-more {
    max-height: 9em;
    opacity: 1;
    margin-top: 10px;
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: end;
    gap: 48px;
    padding-bottom: 56px;
  }

  .page-about .about-map {
    display: grid;
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-rail {
    position: sticky;
    top: 112px;
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-about .about-index {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-about .about-index .index-link {
    display: flex;
    width: 100%;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius-s) var(--radius-s) 0;
    padding: 9px 12px;
    white-space: normal;
    line-height: 1.5;
  }

  .page-about .about-index .index-link[data-active="true"] {
    border-left-color: var(--flame);
  }

  .page-about .scale-wrap {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: start;
    gap: 32px;
  }

  .page-about .eco {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 40px;
  }

  .page-about .about-next {
    padding: 44px 40px;
  }

  .page-about .chapter {
    padding: 46px 0 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-card,
  .page-about .ver-card,
  .page-about .next-links a,
  .page-about .about-index .index-link {
    transition: none;
  }

  .page-about .team-card:hover,
  .page-about .team-card:focus-within,
  .page-about .next-links a:hover,
  .page-about .next-links a:focus-visible {
    transform: none;
  }
}
<<<END>>>