.page-about {
  --tone-1: #C74E32;
  --tone-2: #2F4A78;
  --tone-3: #7D9A7F;
  --tone-4: #A8752B;
  --tone-5: #8A5A8C;
  --tone-6: #3F6F7C;
  --tone-7: #9B4A38;
  --tone-8: #566A3E;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-about .about-head {
  padding-top: clamp(20px, 4vw, 40px);
}

.page-about .about-hero {
  display: grid;
  gap: clamp(18px, 4vw, 32px);
  padding-block: clamp(22px, 4.5vw, 36px) clamp(28px, 5vw, 48px);
  border-bottom: 2px solid var(--ink-slate);
}

.page-about .hero-main .eyebrow {
  margin: 0;
}

.page-about .hero-main .display-title {
  margin: 10px 0 0;
  color: var(--ink-slate);
}

.page-about .lede {
  margin: 16px 0 0;
  max-width: 40ch;
  color: var(--ink-slate);
}

.page-about .hero-note {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px 14px;
  padding: 18px 18px 20px;
  border-radius: var(--radius-lg);
  background: var(--ink-slate);
  color: var(--paper);
}

.page-about .note-rotated {
  grid-column: 1 / -1;
  margin: 0 0 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-light);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--indigo-soft);
}

.page-about .hero-stat {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin: 0;
}

.page-about .stat-num {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.35rem, 4vw, 1.9rem);
  line-height: 1.05;
  color: var(--paper);
}

.page-about .stat-label {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--indigo-soft);
}

.page-about .about-layout {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  padding-block: clamp(26px, 5vw, 52px) clamp(30px, 5vw, 56px);
}

.page-about .toc-rail {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--sand);
}

.page-about .toc-title {
  margin: 0 0 10px;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--ink-slate);
}

.page-about .toc-list {
  display: grid;
  gap: 3px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .toc-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px;
  border-left: 3px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-size: 0.92rem;
  text-decoration: none;
  transition: background var(--ease), border-color var(--ease), color var(--ease);
}

.page-about .toc-link:hover,
.page-about .toc-link:focus-visible {
  background: var(--paper);
  border-left-color: var(--cinnabar);
}

.page-about .toc-link[aria-current="true"] {
  background: var(--paper);
  border-left-color: var(--indigo);
  color: var(--indigo);
  font-weight: 700;
}

.page-about .toc-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--cinnabar);
}

.page-about .toc-foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-about .chapter {
  scroll-margin-top: 96px;
  padding-block: clamp(26px, 4.5vw, 40px);
  border-top: 1px solid var(--line);
}

.page-about .chapter:first-child {
  padding-top: 0;
  border-top: none;
}

.page-about .chapter-num {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(2.4rem, 7vw, 3.6rem);
  line-height: 1;
  color: var(--cinnabar);
}

.page-about .chapter-title {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.6vw, 2.1rem);
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .chapter-lede {
  margin: 14px 0 0;
  max-width: 44ch;
  font-size: clamp(0.96rem, 1.6vw, 1.04rem);
  line-height: 1.85;
  color: var(--ink-slate);
}

.page-about .chapter-grid {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .chapter-text p {
  margin: 0 0 14px;
  max-width: 42ch;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-about .chapter-figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--mist);
}

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

.page-about .timeline {
  display: grid;
  gap: 0;
  margin: clamp(22px, 3.5vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .tl-item {
  position: relative;
  padding: 0 0 22px 30px;
  border-left: 2px solid var(--mist);
}

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

.page-about .tl-dot {
  position: absolute;
  left: -7px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--cinnabar);
  transition: background var(--ease);
}

.page-about .tl-item:hover .tl-dot,
.page-about .tl-item:focus-within .tl-dot {
  background: var(--cinnabar);
}

.page-about .tl-year {
  margin: 0;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--cinnabar);
}

.page-about .tl-title {
  margin: 4px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--ink);
}

.page-about .tl-note {
  margin: 5px 0 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--stone);
  transition: color var(--ease);
}

.page-about .tl-item:hover .tl-note,
.page-about .tl-item:focus-within .tl-note {
  color: var(--ink);
}

.page-about .tag-board {
  display: grid;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .tag-entry {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 6px 14px;
  align-items: start;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--tone);
  border-radius: var(--radius-md);
  background: var(--paper);
  transition: transform var(--ease), border-color var(--ease), background var(--ease);
}

.page-about .tag-entry:hover,
.page-about .tag-entry:focus-within {
  transform: translateY(-2px);
  background: #fffdf8;
  border-color: var(--tone);
}

.page-about .tag-entry:nth-child(1) { --tone: var(--tone-1); }
.page-about .tag-entry:nth-child(2) { --tone: var(--tone-2); }
.page-about .tag-entry:nth-child(3) { --tone: var(--tone-3); }
.page-about .tag-entry:nth-child(4) { --tone: var(--tone-4); }
.page-about .tag-entry:nth-child(5) { --tone: var(--tone-5); }
.page-about .tag-entry:nth-child(6) { --tone: var(--tone-6); }
.page-about .tag-entry:nth-child(7) { --tone: var(--tone-7); }
.page-about .tag-entry:nth-child(8) { --tone: var(--tone-8); }

.page-about .tag-chip {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--tone);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
}

.page-about .tag-name {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 2px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
}

.page-about .tag-flag {
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--sand);
  color: var(--ink-slate);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.page-about .tag-desc {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--stone);
}

.page-about .team-strip {
  display: grid;
  gap: 10px;
}

.page-about .team-card {
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--mist);
  transition: background var(--ease), transform var(--ease);
}

.page-about .team-card:hover,
.page-about .team-card:focus-within {
  background: #cfd9d6;
  transform: translateY(-2px);
}

.page-about .team-role {
  display: inline-block;
  margin: 0 0 8px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--ink-slate);
  color: var(--paper);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
}

.page-about .team-body {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--ink);
}

.page-about .rhythm {
  display: grid;
  gap: 10px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .rhythm-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  transition: border-color var(--ease), background var(--ease);
}

.page-about .rhythm-item:hover,
.page-about .rhythm-item:focus-within {
  border-color: var(--indigo);
  background: #fbf7ee;
}

.page-about .rhythm-step {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cinnabar);
  line-height: 1.6;
}

.page-about .rhythm-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--ink);
}

.page-about .rhythm-text {
  margin: 4px 0 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--stone);
}

.page-about .reach-grid {
  display: grid;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .reach-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--paper);
  text-decoration: none;
  color: var(--ink);
  transition: border-color var(--ease), transform var(--ease), background var(--ease);
}

.page-about .reach-card:hover,
.page-about .reach-card:focus-visible {
  border-color: var(--cinnabar);
  background: #fffdf8;
  transform: translateY(-2px);
}

.page-about .reach-tag {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--indigo);
}

.page-about .reach-name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.12rem;
  color: var(--ink-slate);
}

.page-about .reach-desc {
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--stone);
}

.page-about .reach-go {
  margin-top: 4px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--cinnabar);
}

.page-about .reach-note {
  margin: clamp(18px, 3vw, 24px) 0 0;
  padding: 14px 16px;
  border-left: 4px solid var(--bamboo);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--mist);
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-about .about-foot {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: clamp(24px, 4vw, 36px);
  border-top: 2px solid var(--ink-slate);
}

.page-about .foot-visual {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-slate);
}

.page-about .foot-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.92;
}

.page-about .foot-copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.page-about .foot-line {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink-slate);
}

.page-about .back-top {
  display: inline-block;
  padding: 9px 18px;
  border: 1px solid var(--ink-slate);
  border-radius: 999px;
  color: var(--ink-slate);
  font-size: 0.82rem;
  text-decoration: none;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.page-about .back-top:hover,
.page-about .back-top:focus-visible {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper);
}

@media (min-width: 760px) {
  .page-about .tag-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .about-foot {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.72fr);
    align-items: end;
  }

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

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

  .page-about .toc-rail {
    position: sticky;
    top: 24px;
  }

  .page-about .chapter-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-about .chapter-grid--rev {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  }

  .page-about .timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 18px;
  }

  .page-about .tl-item {
    padding: 18px 0 0;
    border-left: none;
    border-top: 2px solid var(--mist);
  }

  .page-about .tl-item:last-child {
    border-top-color: var(--mist);
  }

  .page-about .tl-item:hover,
  .page-about .tl-item:focus-within {
    border-top-color: var(--cinnabar);
  }

  .page-about .tl-dot {
    left: 0;
    top: -7px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tag-entry,
  .page-about .team-card,
  .page-about .reach-card,
  .page-about .tl-dot,
  .page-about .tl-note,
  .page-about .toc-link,
  .page-about .back-top {
    transition: color var(--ease), background var(--ease), border-color var(--ease);
  }

  .page-about .tag-entry:hover,
  .page-about .tag-entry:focus-within,
  .page-about .team-card:hover,
  .page-about .team-card:focus-within,
  .page-about .reach-card:hover,
  .page-about .reach-card:focus-visible {
    transform: none;
  }
}
<<<END>>>