.page-about {
  --about-rule: rgba(14, 42, 34, .16);
  background: var(--cream);
  color: var(--charcoal);
  font-family: var(--font-text);
  overflow-x: hidden;
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0 0;
  font-size: 13px;
  color: var(--moss);
}

.page-about .breadcrumb a {
  color: var(--moss);
  text-decoration: none;
  border-bottom: 1px solid rgba(74, 95, 87, .38);
}

.page-about .breadcrumb a:hover {
  color: var(--ink-green);
  border-bottom-color: var(--ink-green);
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--charcoal);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-bottom: clamp(34px, 5.5vw, 70px);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: -8%;
  width: 58%;
  height: 82%;
  background: var(--mist);
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-about .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--moss);
}

.page-about .eyebrow::before {
  content: "";
  width: 26px;
  height: 3px;
  background: var(--lime);
}

.page-about h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(31px, 6.6vw, 58px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--charcoal);
}

.page-about .about-hero__deck {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--moss);
}

.page-about .about-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--about-rule);
}

.page-about .stat {
  display: flex;
  align-items: baseline;
  gap: 7px;
}

.page-about .stat__num {
  font-family: var(--font-mono);
  font-size: 23px;
  font-weight: 500;
  letter-spacing: -.02em;
  color: var(--ink-green);
}

.page-about .stat__label {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--moss);
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
}

.page-about .about-hero__figure::before {
  content: "";
  position: absolute;
  inset: 16px -14px -14px 16px;
  background: var(--ink-green);
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
  z-index: 0;
}

.page-about .about-hero__figure img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  max-width: 100%;
}

.page-about .about-hero__figure figcaption {
  position: relative;
  z-index: 1;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--moss);
}

/* ---------- 章节通用 ---------- */
.page-about .story {
  padding: clamp(34px, 5.5vw, 74px) 0;
}

.page-about .story + .story {
  border-top: 1px solid var(--about-rule);
}

.page-about .story__head {
  position: relative;
  margin: 0 0 clamp(18px, 3vw, 30px);
  padding-left: 34px;
}

.page-about .story__num {
  position: absolute;
  left: 0;
  top: .45em;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--moss);
}

.page-about .story__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4.2vw, 38px);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--charcoal);
}

.page-about .story__body {
  max-width: 64ch;
}

.page-about .story__body p {
  margin: 0 0 1.05em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--charcoal);
}

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

.page-about .story__intro {
  margin: 0 0 clamp(16px, 2.6vw, 26px);
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--moss);
}

.page-about .split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.8vw, 46px);
}

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

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

.page-about .story__figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--moss);
}

.page-about .story__figure--wide {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

.page-about .story__figure--wide img {
  aspect-ratio: 3 / 2;
}

/* ---------- 规模便签 ---------- */
.page-about .note-card {
  align-self: start;
  padding: 18px 20px;
  background: var(--warm-white);
  border-top: 3px solid var(--lime);
}

.page-about .note-card__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .note-card__row:last-child {
  border-bottom: 0;
}

.page-about .note-card__num {
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 500;
  color: var(--ink-green);
}

.page-about .note-card__label {
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--moss);
  text-align: right;
}

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

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--cool-grey);
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 26px 34px;
  outline: none;
}

.page-about .timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 17px;
  height: 17px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--cream);
  border: 1px solid var(--cool-grey);
  transition: background .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.page-about .timeline__item:hover::before,
.page-about .timeline__item:focus-visible::before,
.page-about .timeline__item:focus-within::before {
  background: var(--lime);
  border-color: var(--ink-green);
  box-shadow: 0 0 0 4px var(--lime-wash);
}

.page-about .timeline__step {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--moss);
  margin-bottom: 6px;
}

.page-about .timeline__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2.4vw, 21px);
  letter-spacing: -.01em;
  color: var(--charcoal);
}

.page-about .timeline__desc {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--charcoal);
}

.page-about .timeline__more {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--moss);
  border-left: 2px solid var(--lime);
  padding-left: 0;
  transition: max-height .2s ease, opacity .2s ease, margin .2s ease, padding .2s ease;
}

.page-about .timeline__item:hover .timeline__more,
.page-about .timeline__item:focus-visible .timeline__more,
.page-about .timeline__item:focus-within .timeline__more {
  max-height: 220px;
  opacity: 1;
  margin-top: 10px;
  padding-left: 12px;
}

/* ---------- 字段矩阵 ---------- */
.page-about .field-wrap {
  min-width: 0;
}

.page-about .field-map {
  display: block;
  width: 100%;
  height: auto;
  margin: 0;
}

.page-about .field-wrap__note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--moss);
}

/* ---------- 四件事 ---------- */
.page-about .looks {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-rule);
}

.page-about .looks__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: clamp(18px, 2.6vw, 28px) 0;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .looks__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--moss);
}

.page-about .looks__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2.2vw, 20px);
  letter-spacing: -.01em;
  color: var(--charcoal);
}

.page-about .looks__desc {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--moss);
}

/* ---------- 引文 ---------- */
.page-about .voices {
  margin: clamp(28px, 5vw, 54px) 0 0;
  width: 100%;
}

.page-about .voices__track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  background: var(--brown-black);
  padding: clamp(20px, 3vw, 34px) 0;
  -webkit-overflow-scrolling: touch;
}

.page-about .voices__item {
  flex: 0 0 min(100%, 440px);
  scroll-snap-align: start;
  margin: 0;
  padding: 0 clamp(20px, 3vw, 34px);
  border-left: 1px solid rgba(251, 248, 241, .16);
}

.page-about .voices__item:first-child {
  border-left: 0;
}

.page-about .voices__item p {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(18px, 2.6vw, 23px);
  line-height: 1.65;
  letter-spacing: -.01em;
  color: var(--warm-white);
}

.page-about .voices__item cite {
  display: block;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--lime);
}

/* ---------- 团队 ---------- */
.page-about .crew {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-self: start;
}

.page-about .crew__cell {
  padding: 16px 18px;
  background: var(--mist);
}

.page-about .crew__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -.02em;
  color: var(--ink-green);
}

.page-about .crew__role {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--moss);
}

/* ---------- 覆盖数据 ---------- */
.page-about .reach {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(22px, 3.4vw, 34px);
  background: var(--about-rule);
  border-top: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
}

.page-about .reach__fig {
  background: var(--cream);
  padding: clamp(16px, 2.4vw, 24px) 0;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-about .reach__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 500;
  letter-spacing: -.03em;
  color: var(--ink-green);
  line-height: 1;
}

.page-about .reach__pct {
  font-size: .6em;
  margin-left: 2px;
}

.page-about .reach__unit {
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--moss);
}

/* ---------- 收尾行动 ---------- */
.page-about .story--cta {
  background: var(--warm-white);
}

.page-about .cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  align-items: end;
}

.page-about .cta__copy h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4.2vw, 36px);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--charcoal);
}

.page-about .cta__copy p {
  margin: 0;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--moss);
}

.page-about .cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
}

.page-about .btn--signal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 26px;
  background: var(--signal);
  color: var(--warm-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .02em;
  text-decoration: none;
  border: 1px solid var(--signal);
  border-radius: var(--radius);
  transition: background .18s ease, color .18s ease;
}

.page-about .btn--signal:hover,
.page-about .btn--signal:focus-visible {
  background: var(--ink-green);
  border-color: var(--ink-green);
  color: var(--warm-white);
}

.page-about .cta__link {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink-green);
  text-decoration: none;
  border-bottom: 2px solid var(--lime);
  padding-bottom: 2px;
}

.page-about .cta__link:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-about .cta__note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--moss);
}

.page-about .cta__note a {
  color: var(--ink-green);
  text-decoration: none;
  border-bottom: 1px solid var(--cool-grey);
}

.page-about .cta__note a:hover {
  border-bottom-color: var(--ink-green);
}

.page-about .btn--signal:focus-visible,
.page-about .cta__link:focus-visible,
.page-about .cta__note a:focus-visible,
.page-about .breadcrumb a:focus-visible,
.page-about .timeline__item:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .reach {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .reach__fig {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: clamp(16px, 2.4vw, 24px);
  }

  .page-about .reach__fig:first-child {
    padding-left: 0;
  }

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

@media (min-width: 880px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .split--wide {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .split--narrow {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-about .looks__item {
    grid-template-columns: 64px minmax(0, 1fr) minmax(0, 1.55fr);
    align-items: start;
    gap: 0 24px;
  }

  .page-about .looks__idx {
    padding-top: .35em;
  }

  .page-about .voices {
    width: 84%;
    margin-left: auto;
  }

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

  .page-about .story__head {
    padding-left: 44px;
  }
}

@media (min-width: 1100px) {
  .page-about .reach__fig:first-child {
    padding-left: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .timeline__more,
  .page-about .timeline__item::before,
  .page-about .btn--signal {
    transition: none;
  }
}
<<<END>>>