.page-about {
  --about-rail: 220px;
  background: var(--paper);
  color: var(--paper-ink);
}

.page-about .breadcrumbs {
  padding: 22px 0 4px;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  padding: 12px 0 44px;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-about .about-hero__copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper-ink);
}

.page-about .about-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(27, 32, 38, 0.78);
}

.page-about .about-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  font-size: 14px;
  color: rgba(27, 32, 38, 0.7);
}

.page-about .about-hero__facts .mono {
  display: inline-block;
  margin-right: 6px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 19px;
  color: var(--grass);
}

.page-about .about-hero__media {
  margin: 0;
  background: var(--night);
  border: 1px solid var(--line-strong);
}

/* ---------- Origin ---------- */
.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-about .about-origin__body h2 {
  margin: 12px 0 16px;
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.3;
  font-weight: 700;
}

.page-about .about-origin__body p {
  margin: 0 0 16px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(27, 32, 38, 0.82);
}

.page-about .anchor-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-about .anchor-list__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .anchor-list__row dt {
  font-size: 13px;
  color: rgba(27, 32, 38, 0.64);
}

.page-about .anchor-list__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 19px;
  color: var(--grass);
}

/* ---------- Teams ---------- */
.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 22px;
}

.page-about .team-card .card__meta {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--grass);
  font-weight: 700;
}

.page-about .team-card .card__meta .mono {
  font-family: var(--font-mono);
  font-size: 17px;
}

.page-about .team-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .team-card li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(27, 32, 38, 0.82);
}

.page-about .team-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grass);
}

.page-about .team-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 22px 0 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--sky);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.6);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(27, 32, 38, 0.72);
}

.page-about .team-flow .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-about .team-flow span[aria-hidden="true"] {
  color: var(--sky);
  font-weight: 700;
}

/* ---------- Rules (dark) ---------- */
.page-about .rule-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-dark);
}

.page-about .rule-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-about .rule-item__idx {
  grid-row: span 2;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--lime);
}

.page-about .rule-item h3 {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.35;
  color: var(--ink-inverse);
}

.page-about .rule-item p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-inverse-dim);
}

/* ---------- History ---------- */
.page-about .about-history__media {
  margin: 4px 0 30px;
}

.page-about .tl__rule {
  display: block;
  width: 100%;
  height: 34px;
}

.page-about .tl__list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-about .tl__item {
  position: relative;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-about .tl__dot {
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--grass);
}

.page-about .tl__item--current .tl__dot {
  box-shadow: 0 0 0 4px rgba(215, 242, 74, 0.75);
}

.page-about .tl__ver {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--sky);
}

.page-about .tl__title {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.35;
}

.page-about .tl__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(27, 32, 38, 0.78);
}

.page-about .tl-ext {
  margin-top: 34px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--mint);
}

.page-about .tl-ext__label {
  margin: 0 0 14px;
  color: var(--grass);
}

.page-about .tl-ext ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .tl-ext li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 12px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(27, 32, 38, 0.84);
}

.page-about .tl-ext__mark {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--grass);
  font-size: 14px;
  line-height: 1.9;
}

/* ---------- Reach ---------- */
.page-about .about-reach__banner {
  margin: 4px 0 26px;
  border: 1px solid var(--line-strong);
}

.page-about .reach-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .reach-stats .stat {
  background: var(--paper);
  padding: 18px 16px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.page-about .reach-stats .stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 28px;
  color: var(--grass);
  margin: 0;
}

.page-about .reach-stats .stat__unit {
  font-size: 13px;
  margin-left: 4px;
  color: rgba(27, 32, 38, 0.6);
}

.page-about .reach-stats .stat__label {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(27, 32, 38, 0.68);
}

.page-about .reach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 22px;
}

.page-about .reach-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.page-about .reach-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(27, 32, 38, 0.78);
}

.page-about .reach-note {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--sky);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(27, 32, 38, 0.74);
  max-width: 40em;
}

/* ---------- Foot ---------- */
.page-about .about-foot__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-about .about-foot__body h2 {
  margin: 12px 0 0;
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.3;
}

.page-about .cred-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .cred-list li {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(27, 32, 38, 0.82);
}

.page-about .cred-list__mark {
  width: 8px;
  height: 8px;
  margin-top: 9px;
  background: var(--lime);
  border: 1px solid var(--grass);
  border-radius: 1px;
}

.page-about .about-foot__cta {
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--night);
  color: var(--ink-inverse);
}

.page-about .about-foot__cta h3 {
  margin: 0 0 16px;
  font-size: 18px;
  color: var(--ink-inverse);
}

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

.page-about .next-list a {
  display: block;
  padding: 12px 14px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  color: var(--ink-inverse);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: border-color 200ms var(--ease), background-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-about .next-list a:hover,
.page-about .next-list a:focus-visible {
  border-color: var(--lime);
  background: var(--night-2);
  transform: translateY(-2px);
}

.page-about .about-foot__hint {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-inverse-dim);
}

.page-about .about-foot__hint a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  .page-about .reach-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 20px 0 60px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 52px;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1fr) var(--about-rail);
    gap: 56px;
  }

  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .rule-item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 6px 20px;
    padding: 26px 0;
  }

  .page-about .tl__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }

  .page-about .tl-ext {
    padding: 26px 28px;
  }

  .page-about .about-foot__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 72px;
  }

  .page-about .reach-stats .stat {
    padding: 22px 20px;
  }
}
<<<END>>>