.page-about {
  --about-line: rgba(155, 181, 165, .16);
  --about-line-strong: rgba(155, 181, 165, .34);
  --about-soft: rgba(244, 247, 242, .78);
  background: var(--night);
  color: var(--mist);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding: 26px 0 0;
  background:
    radial-gradient(130% 85% at 100% 0%, rgba(20, 107, 58, .52), transparent 60%),
    linear-gradient(168deg, var(--pitch-deep) 0%, var(--night) 42%, var(--night) 100%);
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -16%;
  top: 16%;
  width: 70%;
  height: 48%;
  background: var(--pitch);
  opacity: .16;
  border-radius: 48% 0 0 48%;
  transform: rotate(-10deg);
  pointer-events: none;
}
.page-about .about-hero__grid {
  display: grid;
  gap: 26px;
  align-items: start;
}
.page-about .about-hero__crumbs { margin-bottom: 22px; }
.page-about .about-hero__title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 8.6vw, 72px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--mist);
  text-wrap: balance;
}
.page-about .about-hero__num {
  color: var(--volt);
  font-variant-numeric: tabular-nums;
}
.page-about .about-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--about-soft);
}
.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-about .about-hero__figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--about-line-strong);
  background: var(--stand);
}
.page-about .about-hero__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 12 / 8;
  object-fit: cover;
}
.page-about .about-hero__figcap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 26px 16px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--mist);
  background: linear-gradient(0deg, rgba(4, 16, 26, .88), rgba(4, 16, 26, 0));
}
.page-about .about-hero__stats {
  margin-top: 40px;
  padding-top: 24px;
  padding-bottom: 42px;
  border-top: 1px solid var(--about-line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 16px;
}
.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.page-about .about-stat__value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 46px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}
.page-about .about-stat__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--sage);
}

/* ---------- 主体骨架 ---------- */
.page-about .about-body {
  padding-top: 52px;
  padding-bottom: 84px;
}
.page-about .about-rail { margin-bottom: 34px; }
.page-about .about-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--sage);
}
.page-about .about-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-about .about-rail__list::-webkit-scrollbar { display: none; }
.page-about .about-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 15px;
  border-radius: 999px;
  border: 1px solid var(--about-line);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .2s var(--ease), border-color .2s var(--ease);
}
.page-about .about-rail__link:hover { background: var(--pitch); border-color: var(--pitch-lit); }
.page-about .about-rail__link:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
  background: var(--pitch);
  border-color: var(--pitch-lit);
}
.page-about .about-rail__no { color: var(--pitch-lit); font-size: 11px; }

/* ---------- 区块通用 ---------- */
.page-about .about-section { scroll-margin-top: 92px; }
.page-about .about-section + .about-section {
  margin-top: 56px;
  padding-top: 42px;
  border-top: 1px solid var(--about-line);
}
.page-about .about-section__title {
  margin: 12px 0 0;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 6vw, 42px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--mist);
}
.page-about .about-prose { margin-top: 20px; max-width: 40em; }
.page-about .about-prose p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--about-soft);
}
.page-about .about-prose p:last-child { margin-bottom: 0; }

.page-about .about-pull {
  margin: 26px 0 0;
  padding: 20px 22px;
  border-left: 3px solid var(--pitch-lit);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: linear-gradient(90deg, rgba(20, 107, 58, .3), rgba(20, 107, 58, .02));
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 4.6vw, 28px);
  line-height: 1.4;
  color: var(--mist);
}
.page-about .about-inline-link {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--sage);
}
.page-about .about-inline-link a {
  color: var(--volt);
  text-decoration: none;
  border-bottom: 1px solid rgba(216, 255, 72, .4);
}
.page-about .about-inline-link a:hover { border-bottom-color: var(--volt); }

/* ---------- 方法 ---------- */
.page-about .about-method { display: grid; gap: 24px; }
.page-about .about-method .about-prose { margin-top: 20px; }
.page-about .about-figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--about-line);
  background: var(--stand);
}
.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  max-height: 460px;
  object-fit: cover;
}
.page-about .about-figure--wide { margin-top: 30px; }
.page-about .about-figure--wide img { aspect-ratio: 2 / 1; max-height: 320px; }

.page-about .about-flow {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-about .about-flow__step {
  position: relative;
  overflow: hidden;
  padding: 22px 20px 24px;
  border-radius: var(--radius-md);
  background: var(--stand);
  border: 1px solid var(--about-line);
}
.page-about .about-flow__step::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--pitch), var(--pitch-lit));
}
.page-about .about-flow__step:nth-child(3)::after {
  background: linear-gradient(90deg, var(--pitch-lit), var(--volt));
}
.page-about .about-flow__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--pitch-lit);
}
.page-about .about-flow__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.25;
  color: var(--mist);
}
.page-about .about-flow__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--sage);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: 20px;
  margin-top: 30px;
}
.page-about .about-team__bar { display: grid; gap: 8px; }
.page-about .about-team__bar-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
}
.page-about .about-team__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--mist);
}
.page-about .about-team__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 26px;
  line-height: 1;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.page-about .about-team__track {
  height: 9px;
  border-radius: 999px;
  background: rgba(155, 181, 165, .14);
  overflow: hidden;
}
.page-about .about-team__fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--pitch-deep), var(--pitch-lit));
}
.page-about .about-team__bar:nth-child(1) .about-team__fill {
  width: 42.9%;
  background: linear-gradient(90deg, var(--pitch), var(--pitch-lit) 62%, var(--volt));
}
.page-about .about-team__bar:nth-child(2) .about-team__fill { width: 32.1%; }
.page-about .about-team__bar:nth-child(3) .about-team__fill { width: 14.3%; }
.page-about .about-team__bar:nth-child(4) .about-team__fill { width: 10.7%; }
.page-about .about-team__desc {
  margin: 0;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sage);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  list-style: none;
  position: relative;
  margin: 32px 0 0;
  padding: 0 0 0 24px;
}
.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--pitch-lit), var(--pitch-deep) 62%, rgba(12, 59, 36, 0));
}
.page-about .about-timeline__item {
  position: relative;
  padding-bottom: 30px;
}
.page-about .about-timeline__item:last-child { padding-bottom: 0; }
.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--pitch-lit);
  box-shadow: 0 0 0 4px rgba(47, 163, 95, .18);
}
.page-about .about-timeline__item--note::before {
  background: var(--ember);
  box-shadow: 0 0 0 4px rgba(255, 154, 77, .18);
}
.page-about .about-timeline__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--pitch-lit);
}
.page-about .about-timeline__item--note .about-timeline__year { color: var(--ember); }
.page-about .about-timeline__title {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.28;
  color: var(--mist);
}
.page-about .about-timeline__text {
  margin: 8px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-soft);
}

/* ---------- 合作 ---------- */
.page-about .about-partners__tabs { margin-top: 28px; }
.page-about .about-partners__panel {
  margin-top: 20px;
  padding: 22px 20px;
  border-radius: var(--radius-md);
  background: var(--stand);
  border: 1px solid var(--about-line);
}
.page-about .about-partners__count {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 40px;
  line-height: 1;
  color: var(--volt);
  font-variant-numeric: tabular-nums;
}
.page-about .about-partners__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.3;
  color: var(--mist);
}
.page-about .about-partners__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-soft);
}
.page-about .about-partners__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-about .about-partners__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sage);
}
.page-about .about-partners__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pitch-lit);
}
.page-about .about-honor {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 154, 77, .38);
  background: linear-gradient(90deg, rgba(255, 154, 77, .14), rgba(255, 154, 77, 0));
}
.page-about .about-honor__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ember);
  white-space: nowrap;
}
.page-about .about-honor__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 联系 ---------- */
.page-about .about-contact {
  margin-top: 26px;
  display: grid;
  gap: 22px;
  padding: 22px 20px;
  border-radius: var(--radius-md);
  background: var(--stand);
  border: 1px solid var(--about-line);
}
.page-about .about-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-about .about-contact__item { display: grid; gap: 3px; }
.page-about .about-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--sage);
}
.page-about .about-contact__value {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}
.page-about .about-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero__stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-about .about-flow { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
}

@media (min-width: 860px) {
  .page-about .about-method {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 34px;
    align-items: start;
  }
  .page-about .about-method .about-prose { margin-top: 22px; }
  .page-about .about-contact {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 30px;
    padding: 26px 26px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero { padding-top: 36px; }
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .82fr);
    gap: 48px;
    align-items: end;
    padding-bottom: 8px;
  }
  .page-about .about-hero__figure { align-self: stretch; }
  .page-about .about-hero__img { height: 100%; min-height: 440px; aspect-ratio: auto; object-fit: cover; }
  .page-about .about-hero__stats { margin-top: 48px; padding-bottom: 52px; }
  .page-about .about-section + .about-section { margin-top: 72px; padding-top: 56px; }
}

@media (min-width: 960px) {
  .page-about .about-body {
    display: grid;
    grid-template-columns: 186px minmax(0, 1fr);
    gap: 56px;
    padding-top: 72px;
  }
  .page-about .about-rail {
    position: sticky;
    top: 96px;
    align-self: start;
    margin-bottom: 0;
  }
  .page-about .about-rail__list {
    flex-direction: column;
    overflow: visible;
    gap: 4px;
    padding-bottom: 0;
  }
  .page-about .about-rail__link {
    border-radius: 10px;
    border-color: transparent;
    padding: 10px 12px;
    font-size: 12px;
  }
}
<<<END>>>