.page-about {
  background: var(--sand);
  color: var(--indigo);
  font-family: var(--font-sans);
}

.page-about .about-hero {
  position: relative;
  padding: clamp(14px, 2.4vw, 24px) 0 clamp(34px, 5.5vw, 68px);
  background:
    radial-gradient(120% 90% at 92% 0%, rgba(255, 179, 71, .28), rgba(243, 231, 211, 0) 62%),
    linear-gradient(180deg, rgba(255, 249, 240, .55), rgba(243, 231, 211, 0) 55%),
    var(--sand);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--amber) 48%, var(--teal));
  opacity: .9;
}

.page-about .about-hero__inner {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
}

.page-about .about-hero__crumb {
  min-width: 0;
}

.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--orange);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--rock);
  text-transform: uppercase;
}

.page-about .about-hero__title {
  margin: 0 0 18px;
  font-size: clamp(34px, 6.4vw, 60px);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--indigo);
}

.page-about .about-lede {
  max-width: 36em;
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--indigo);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-bottom: 18px;
}

.page-about .about-hero__note {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
}

.page-about .about-hero__figure {
  margin: 0;
  background: var(--cream);
  border: 2px solid var(--line-strong);
  box-shadow: 8px 8px 0 -1px rgba(24, 42, 74, .14), var(--paper-shadow);
  padding: 8px;
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-about .about-hero__caption {
  display: block;
  margin-top: 10px;
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .06em;
  color: var(--rock);
}

.page-about .about-chapter {
  padding: clamp(38px, 6vw, 78px) 0;
  border-top: 1px dashed var(--line-strong);
}

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

.page-about .about-chapter:nth-of-type(even) {
  background: rgba(255, 249, 240, .5);
}

.page-about .about-chapter__head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(20px, 3.2vw, 34px);
}

.page-about .about-chapter__index {
  font-size: clamp(28px, 4.2vw, 44px);
  line-height: 1;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .02em;
}

.page-about .about-chapter__title {
  margin: 0 0 10px;
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.25;
  font-weight: 900;
  letter-spacing: -.01em;
}

.page-about .about-chapter__lede {
  max-width: 40em;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--indigo);
}

.page-about .about-route {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-route__item {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--cream);
  border: 2px solid var(--line-strong);
  box-shadow: 5px 5px 0 -1px rgba(24, 42, 74, .12);
}

.page-about .about-route__no {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-about .about-route__name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
}

.page-about .about-route__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

.page-about .about-inline-note {
  margin: 0;
  padding: 14px 16px;
  border-left: 4px solid var(--amber);
  background: rgba(255, 179, 71, .14);
  font-size: 15px;
  line-height: 1.8;
  color: var(--indigo);
}

.page-about .about-wide-figure {
  margin: 0 0 clamp(24px, 4vw, 40px);
  padding: 8px;
  background: var(--indigo);
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 -1px rgba(24, 42, 74, .18);
}

.page-about .about-wide-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 26px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), var(--amber) 55%, var(--teal));
}

.page-about .about-timeline__item {
  position: relative;
  margin-bottom: 16px;
}

.page-about .about-timeline__dot {
  position: absolute;
  left: 2px;
  top: 22px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cream);
  border: 3px solid var(--orange);
  z-index: 1;
}

.page-about .about-timeline__card {
  margin-left: 34px;
  padding: 16px 18px;
  background: var(--cream);
  border: 2px solid var(--line-strong);
  box-shadow: 5px 5px 0 -1px rgba(24, 42, 74, .1);
}

.page-about .about-timeline__year {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: .16em;
  font-weight: 700;
  color: var(--orange);
}

.page-about .about-timeline__name {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 700;
}

.page-about .about-timeline__desc {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--indigo);
}

.page-about .about-timeline__card .disclosure__toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border: 0;
  background: none;
  color: var(--teal-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  cursor: pointer;
}

.page-about .about-timeline__card .disclosure__toggle::after {
  content: "+";
  display: inline-block;
  width: 16px;
  text-align: center;
  color: var(--rock);
}

.page-about .about-timeline__card .disclosure__toggle[aria-expanded="true"]::after {
  content: "−";
  color: var(--teal);
}

.page-about .about-timeline__card .disclosure__toggle:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-about .about-timeline__card .disclosure__panel {
  display: none;
  margin-top: 10px;
  padding: 12px 14px;
  border-left: 3px solid var(--teal);
  background: rgba(220, 230, 242, .6);
  font-size: 14px;
  line-height: 1.85;
  color: var(--indigo);
}

.page-about .about-timeline__card .disclosure__panel[data-open] {
  display: block;
}

.page-about .about-timeline__card .disclosure__panel p {
  margin: 0;
}

.page-about .about-compare {
  display: grid;
  gap: 14px;
}

.page-about .about-compare__col {
  padding: 18px;
  border: 2px solid var(--line-strong);
}

.page-about .about-compare__col--before {
  background: var(--indigo-soft);
  box-shadow: 5px 5px 0 -1px rgba(24, 42, 74, .1);
}

.page-about .about-compare__col--after {
  background: var(--cream);
  border-color: var(--orange);
  box-shadow: 6px 6px 0 -1px rgba(242, 106, 46, .28);
}

.page-about .about-compare__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--rock);
}

.page-about .about-compare__col--after .about-compare__label {
  color: var(--orange-deep);
}

.page-about .about-paths {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: grid;
  gap: 8px;
  counter-reset: path;
}

.page-about .about-paths li {
  counter-increment: path;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 10px;
  background: rgba(255, 249, 240, .72);
  border: 1px solid var(--line);
  font-size: 15px;
  color: var(--rock);
}

.page-about .about-paths li::before {
  content: counter(path, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--rock);
}

.page-about .about-paths--after li {
  background: #fff;
  border-color: rgba(242, 106, 46, .35);
  color: var(--indigo);
  font-weight: 600;
}

.page-about .about-paths--after li::before {
  color: var(--orange);
}

.page-about .about-compare__result {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--rock);
}

.page-about .about-compare__mid {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-about .about-compare__arrow {
  display: inline-block;
  padding: 6px 14px;
  background: var(--orange);
  color: var(--cream);
  font-size: 16px;
  border-radius: 999px;
  transform: rotate(90deg);
}

.page-about .about-team {
  display: grid;
  gap: clamp(20px, 3.5vw, 36px);
}

.page-about .about-roles {
  margin: 0 0 22px;
  display: grid;
  gap: 12px;
}

.page-about .about-roles__row {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: var(--cream);
  border-left: 4px solid var(--indigo);
  box-shadow: 0 1px 0 rgba(24, 42, 74, .06);
}

.page-about .about-roles__name {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--indigo);
}

.page-about .about-roles__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

.page-about .about-rhythm {
  display: grid;
  gap: 12px;
}

.page-about .about-rhythm__item {
  padding: 14px 16px;
  background: rgba(0, 158, 115, .08);
  border: 1px dashed rgba(0, 158, 115, .5);
  font-size: 15px;
  line-height: 1.75;
  color: var(--indigo);
}

.page-about .about-rhythm__item p {
  margin: 0;
}

.page-about .about-rhythm__tag {
  margin-bottom: 6px !important;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--teal-deep);
}

.page-about .about-team__figure {
  margin: 0;
  padding: 8px;
  background: var(--cream);
  border: 2px solid var(--line-strong);
  box-shadow: 7px 7px 0 -1px rgba(24, 42, 74, .12);
  align-self: start;
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-about .about-team__caption {
  display: block;
  margin-top: 10px;
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .05em;
  color: var(--rock);
}

.page-about .about-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: clamp(24px, 4vw, 38px);
}

.page-about .about-metric {
  padding: 16px 14px;
  background: var(--indigo);
  color: var(--cream);
  border-bottom: 3px solid var(--orange);
}

.page-about .about-metric__value {
  margin: 0 0 6px;
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--amber);
}

.page-about .about-metric__label {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--on-dark);
}

.page-about .about-subtitle {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .01em;
}

.page-about .about-collab {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-collab__item {
  padding: 14px 16px;
  background: var(--cream);
  border: 1px solid var(--line-strong);
}

.page-about .about-collab__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

.page-about .about-chip {
  display: inline-block;
  margin-bottom: 8px !important;
  padding: 3px 10px;
  background: var(--indigo-soft);
  border: 1px solid rgba(24, 42, 74, .25);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--indigo);
}

.page-about .about-promises {
  list-style: none;
  margin: 0 0 clamp(26px, 4vw, 42px);
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-promises__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 6px 14px;
  padding: 16px 18px;
  background: var(--cream);
  border: 2px solid var(--line-strong);
  box-shadow: 5px 5px 0 -1px rgba(24, 42, 74, .1);
}

.page-about .about-promises__no {
  grid-row: span 2;
  font-size: 20px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1.2;
}

.page-about .about-promises__name {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 800;
}

.page-about .about-promises__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

.page-about .about-promises__state {
  grid-column: 2;
  justify-self: start;
  margin-top: 8px;
  padding: 2px 10px;
  background: rgba(0, 158, 115, .12);
  border: 1px solid rgba(0, 158, 115, .45);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--teal-deep);
}

.page-about .about-cta {
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3.4vw, 32px);
  background:
    linear-gradient(120deg, rgba(255, 179, 71, .22), rgba(220, 230, 242, .5)),
    var(--cream);
  border: 2px solid var(--indigo);
  box-shadow: 8px 8px 0 -1px rgba(24, 42, 74, .16);
}

.page-about .about-cta__title {
  margin: 0 0 8px;
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 900;
  line-height: 1.3;
}

.page-about .about-cta__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

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

@media (min-width: 760px) {
  .page-about .about-chapter__head {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: start;
    gap: 22px;
  }

  .page-about .about-route__item {
    grid-template-columns: 54px 172px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 18px;
  }

  .page-about .about-route__desc {
    grid-column: 3;
  }

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

  .page-about .about-collab {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-about .about-collab__item:first-child {
    grid-column: span 2;
  }

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

  .page-about .about-promises__item {
    grid-template-columns: 56px minmax(0, 1fr) 112px;
    align-items: start;
    gap: 4px 18px;
  }

  .page-about .about-promises__no {
    grid-row: auto;
    font-size: 26px;
  }

  .page-about .about-promises__state {
    grid-column: 3;
    justify-self: end;
    margin-top: 2px;
  }

  .page-about .about-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .about-hero__crumb {
    grid-column: 1 / -1;
  }

  .page-about .about-hero__figure {
    margin-top: 6px;
    transform: rotate(-1.1deg);
  }

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

  .page-about .about-compare__arrow {
    transform: none;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: start;
  }

  .page-about .about-team__figure {
    position: sticky;
    top: 96px;
  }

  .page-about .about-timeline__item:nth-child(even) .about-timeline__card {
    margin-left: 58px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__figure {
    transform: none;
  }
}

已在上方输出。