.page-about {
  --about-rail-w: 132px;
  --about-gap: clamp(18px, 3.6vw, 44px);
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-crumb {
  padding-top: clamp(12px, 2.4vw, 24px);
}

.page-about .about-hero {
  padding: clamp(18px, 3.6vw, 44px) 0 clamp(26px, 4.6vw, 56px);
}

.page-about .about-hero__title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.95rem, 8vw, 4.9rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0.3em 0 0.36em;
  text-wrap: balance;
}

.page-about .about-hero__lede {
  max-width: 40ch;
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.8;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: clamp(20px, 3.4vw, 34px);
}

.page-about .about-stat {
  border: var(--border);
  background: var(--cream);
  padding: 10px 12px 12px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .about-stat__num {
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
}

.page-about .about-stat:nth-child(2) .about-stat__num {
  color: var(--kiwi);
}

.page-about .about-stat:nth-child(4) .about-stat__num {
  color: var(--sky);
}

.page-about .about-stat__label {
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--muted);
}

.page-about .about-hero__media {
  margin-top: clamp(22px, 4vw, 46px);
}

.page-about .media img {
  border: var(--border);
  box-shadow: var(--shadow);
  background: var(--mist);
}

.page-about .media__caption {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 10px;
}

.page-about .about-chapter {
  border-top: 1px solid var(--line);
  padding: clamp(30px, 5.2vw, 76px) 0;
}

.page-about .about-chapter:first-of-type {
  border-top: 0;
}

.page-about .about-chapter__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
}

.page-about .about-rail {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 4px;
}

.page-about .about-rail__num {
  font-size: clamp(2.4rem, 7vw, 3.2rem);
  font-weight: 700;
  line-height: 0.86;
  color: var(--kiwi);
}

.page-about .about-rail__name {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  border-top: 3px solid var(--ink);
  padding-top: 5px;
}

.page-about .about-content__title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.35rem, 3.6vw, 2.1rem);
  line-height: 1.28;
  margin: 0 0 0.55em;
  text-wrap: balance;
}

.page-about .about-content__lede {
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 44ch;
  margin: 0 0 1.1em;
}

.page-about .about-prose p {
  max-width: 44ch;
  margin: 0 0 1em;
  line-height: 1.9;
}

.page-about .about-inline-link {
  margin-top: 1.2em;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0.4em 0 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 16px;
  bottom: 20px;
  width: 3px;
  background: var(--ink);
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 36px;
  padding-bottom: 14px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 23px;
  height: 23px;
  border: var(--border);
  background: var(--flesh);
}

.page-about .about-timeline__item:nth-child(2)::before {
  background: var(--sky);
}

.page-about .about-timeline__item:nth-child(3)::before {
  background: var(--kiwi);
}

.page-about .about-timeline__item:nth-child(5)::before {
  background: var(--orange);
}

.page-about .about-stage {
  border: var(--border);
  background: var(--cream);
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s var(--ease-sprint), box-shadow 0.18s var(--ease-sprint);
}

.page-about .about-stage[open] {
  box-shadow: var(--shadow);
}

.page-about .about-stage > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  padding: 12px 14px;
}

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

.page-about .about-stage > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.2rem;
  line-height: 1;
  color: var(--orange);
}

.page-about .about-stage[open] > summary::after {
  content: "–";
}

.page-about .about-stage__no {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--sky);
  font-weight: 700;
}

.page-about .about-stage__name {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: 0.01em;
}

.page-about .about-stage__panel {
  padding: 0 14px 14px;
}

.page-about .about-stage__panel p {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-about .about-tree {
  border: var(--border);
  background: var(--mist);
  box-shadow: var(--shadow);
  padding: 10px;
  margin-bottom: clamp(20px, 3.4vw, 34px);
}

.page-about .about-tree svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .tree-box {
  stroke: var(--ink);
  stroke-width: 3;
}

.page-about .tree-box--root { fill: var(--kiwi); }
.page-about .tree-box--sky { fill: var(--sky); }
.page-about .tree-box--flesh { fill: var(--flesh); }
.page-about .tree-box--mist { fill: var(--cream); }
.page-about .tree-box--orange { fill: var(--orange); }

.page-about .tree-label {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  fill: var(--ink);
}

.page-about .tree-label--light {
  fill: var(--cream);
}

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

.page-about .about-node {
  border-left: 3px solid var(--ink);
  padding: 2px 0 2px 14px;
}

.page-about .about-node__tag {
  margin-bottom: 6px;
  display: inline-block;
}

.page-about .about-node__link {
  display: block;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 3px solid var(--orange);
  width: fit-content;
}

.page-about .about-node__link:hover,
.page-about .about-node__link:focus-visible {
  color: var(--lake);
}

.page-about .about-node__text {
  margin: 8px 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 42ch;
}

.page-about .about-roles {
  margin-bottom: clamp(20px, 3.4vw, 34px);
}

.page-about .about-role {
  border: var(--border);
  background: var(--cream);
  padding: 16px 16px 18px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s var(--ease-sprint), box-shadow 0.2s var(--ease-sprint);
}

.page-about .about-role:hover,
.page-about .about-role:focus-within {
  transform: translate(-3px, -3px);
  box-shadow: 11px 11px 0 var(--seed);
}

.page-about .about-role:nth-child(2) {
  background: var(--flesh);
}

.page-about .about-role:nth-child(3) {
  background: var(--mist);
}

.page-about .about-role__no {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--lake);
  border: 2px solid var(--ink);
  padding: 1px 7px;
}

.page-about .about-role__title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.16rem;
  margin: 12px 0 8px;
}

.page-about .about-role__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.82;
  color: var(--ink-soft);
}

.page-about .about-role__hover {
  margin: 10px 0 0;
  padding-top: 8px;
  border-top: 1px dashed var(--line);
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-team-figure {
  max-width: 520px;
}

.page-about .about-eco {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 30px);
  align-items: start;
}

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

.page-about .about-eco__body p {
  margin: 0 0 1em;
  line-height: 1.88;
  max-width: 44ch;
}

.page-about .about-eco__list {
  list-style: none;
  margin: 0 0 1.1em;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-eco__list li {
  border-top: 3px solid var(--ink);
  padding-top: 8px;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-about .about-eco__list strong {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--ink);
  margin-right: 8px;
}

.page-about .about-honor {
  border: var(--border);
  background: var(--flesh);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1em;
}

.page-about .about-honor__badge {
  display: inline-block;
  background: var(--ink);
  color: var(--cream);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  padding: 3px 9px;
  margin-bottom: 8px;
}

.page-about .about-honor p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-about .about-feedback {
  font-size: 0.88rem;
  color: var(--muted);
}

.page-about .about-board {
  border: var(--border);
  background: var(--lake);
  color: var(--cream);
  padding: clamp(16px, 3vw, 26px);
  box-shadow: var(--shadow);
}

.page-about .about-board__label {
  margin: 0 0 14px;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--flesh);
}

.page-about .about-board__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-board__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: baseline;
  border-bottom: 1px solid var(--line-cream);
  padding-bottom: 9px;
}

.page-about .about-board__key {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--flesh);
  min-width: 66px;
}

.page-about .about-board__val {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  word-break: break-word;
}

.page-about .about-board__note {
  margin: 0 0 16px;
  font-size: 0.84rem;
  line-height: 1.8;
  color: rgba(255, 249, 240, 0.78);
}

.page-about .about-board__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-board__ghost {
  border-color: var(--cream);
  color: var(--cream);
}

.page-about .about-board__ghost:hover,
.page-about .about-board__ghost:focus-visible {
  background: var(--cream);
  color: var(--lake);
}

.page-about .about-backhome {
  margin: 1.4em 0 0;
}

.page-about .about-backhome a {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 3px solid var(--kiwi);
}

@media (min-width: 700px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about {
    --about-rail-w: 156px;
  }

  .page-about .about-chapter__grid {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
  }

  .page-about .about-rail {
    position: sticky;
    top: 96px;
    align-self: start;
    flex-direction: column;
    align-items: flex-start;
    gap: 9px;
  }

  .page-about .about-rail__num {
    font-size: clamp(3rem, 5vw, 4.2rem);
  }

  .page-about .about-rail__name {
    writing-mode: vertical-rl;
    letter-spacing: 0.28em;
    padding-top: 0;
    padding-right: 6px;
    border-top: 0;
    border-right: 3px solid var(--ink);
    margin-top: 6px;
  }

  .page-about .about-eco {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }

  .page-about .about-team-figure {
    max-width: 62%;
    margin-left: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stage,
  .page-about .about-role {
    transition: none;
  }

  .page-about .about-role:hover,
  .page-about .about-role:focus-within {
    transform: none;
  }
}
<<<END>>>