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

/* ---------- 首屏封面 ---------- */
.page-about .about-cover {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding-top: calc(var(--header-h) + clamp(36px, 8vh, 84px));
  padding-bottom: clamp(40px, 7vh, 76px);
  background: linear-gradient(180deg, #070C14 0%, #0A1420 100%);
}
.page-about .about-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, rgba(36, 48, 63, 0.5) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(36, 48, 63, 0.32) 0 1px, transparent 1px 64px);
  opacity: 0.55;
}
.page-about .about-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(90% 70% at 86% 4%, rgba(34, 224, 214, 0.16), transparent 62%);
}
.page-about .about-cover__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.page-about .about-cover__crumb {
  margin: 0 0 4px;
}
.page-about .about-cover__crumb a {
  color: var(--fog);
}
.page-about .about-cover__eyebrow {
  margin: 0;
  color: var(--cyan);
}
.page-about .about-cover__title {
  margin: 0;
  font-size: clamp(38px, 7.2vw, 100px);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-about .about-cover__lede {
  margin: 0;
  max-width: 44ch;
  color: var(--paper);
  opacity: 0.85;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.8;
}
.page-about .about-cover__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 20px;
  margin: 14px 0 0;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.page-about .about-cover__stat dt {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--fog);
}
.page-about .about-cover__stat dd {
  margin: 8px 0 0;
  font-size: clamp(22px, 2.6vw, 34px);
  font-weight: 300;
  color: var(--paper);
  line-height: 1.1;
}
.page-about .about-cover__stat dd .mono {
  font-size: clamp(28px, 3.4vw, 46px);
  color: var(--cyan);
  font-weight: 500;
  letter-spacing: -0.02em;
}

/* ---------- 全宽视觉带 ---------- */
.page-about .about-band {
  position: relative;
  margin: 0;
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}
.page-about .about-band img {
  display: block;
  width: 100%;
  height: clamp(200px, 36vw, 500px);
  object-fit: cover;
}
.page-about .about-band::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: clamp(200px, 36vw, 500px);
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(7, 12, 20, 0.35) 0 1px, transparent 1px 4px);
  opacity: 0.5;
}
.page-about .about-band__caption {
  position: relative;
  z-index: 1;
  padding: 12px var(--gutter);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fog);
}

/* ---------- 正文网格 ---------- */
.page-about .about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  padding-block: clamp(44px, 8vh, 92px);
}
.page-about .about-rail {
  align-self: start;
}
.page-about .about-section {
  min-width: 0;
}
.page-about .about-head {
  margin-bottom: 20px;
}
.page-about .about-head__no {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}
.page-about .about-head__title {
  margin: 0;
  font-size: clamp(24px, 3.2vw, 40px);
  font-weight: 300;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-about .about-head__note {
  margin: 12px 0 0;
  max-width: 58ch;
  color: var(--fog);
}
.page-about .about-text p {
  margin: 0 0 18px;
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.88;
}
.page-about .about-text p:last-child {
  margin-bottom: 0;
}
.page-about .about-quote {
  margin: 28px 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--cyan);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

/* ---------- 时间线 ---------- */
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  border-left: 1px solid var(--line);
}
.page-about .timeline__item {
  position: relative;
  padding-bottom: 34px;
}
.page-about .timeline__item:last-child {
  padding-bottom: 0;
}
.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 7px;
  width: 9px;
  height: 9px;
  background: var(--cyan);
}
.page-about .timeline__item--current::before {
  background: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 107, 26, 0.14);
}
.page-about .timeline__ver {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--fog);
}
.page-about .timeline__item--current .timeline__ver {
  color: var(--orange);
}
.page-about .timeline__title {
  margin: 0 0 6px;
  font-size: clamp(17px, 1.8vw, 21px);
  font-weight: 500;
  color: var(--paper);
  line-height: 1.4;
}
.page-about .timeline__text {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

/* ---------- 团队 ---------- */
.page-about .teams-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.page-about .teams {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.page-about .teams__row {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 6px 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.page-about .teams__no {
  grid-row: 1 / 3;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--moss);
  padding-top: 4px;
}
.page-about .teams__name {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
  color: var(--paper);
}
.page-about .teams__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

/* ---------- 合作生态 ---------- */
.page-about .partners-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}
.page-about .partners {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 26px;
}
.page-about .partners__type {
  margin: 0 0 10px;
}
.page-about .partners__name {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 500;
  color: var(--paper);
  line-height: 1.45;
}
.page-about .partners__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: 0;
}
.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
}
.page-about .about-figure figcaption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--fog);
}

/* ---------- 数字一览 ---------- */
.page-about .about-figures {
  border-top: 1px solid var(--line);
  padding-block: clamp(44px, 8vh, 88px);
  background:
    repeating-linear-gradient(90deg, rgba(36, 48, 63, 0.34) 0 1px, transparent 1px 48px),
    linear-gradient(180deg, #0A111C 0%, #070C14 100%);
}
.page-about .about-head--figures {
  margin-bottom: 26px;
}
.page-about .figures {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .figures__item {
  position: relative;
  background: #0A111C;
  padding: 24px 18px 22px;
}
.page-about .figures__item::before {
  content: "";
  position: absolute;
  top: 22px;
  right: 18px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}
.page-about .figures__item--gold::before {
  background: var(--gold);
}
.page-about .figures__num {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--white);
  line-height: 1.1;
}
.page-about .figures__item--gold .figures__num {
  color: var(--gold);
}
.page-about .figures__label {
  margin: 10px 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--fog);
}

/* ---------- 结尾行动 ---------- */
.page-about .about-cta {
  border-top: 1px solid var(--line);
  background: linear-gradient(100deg, rgba(34, 224, 214, 0.09), rgba(255, 107, 26, 0.07) 70%, transparent);
}
.page-about .about-cta__inner {
  padding-block: clamp(40px, 7vh, 76px);
  display: grid;
  gap: 14px;
}
.page-about .about-cta__title {
  margin: 0;
  font-size: clamp(22px, 2.8vw, 34px);
  font-weight: 300;
  line-height: 1.3;
  color: var(--paper);
}
.page-about .about-cta__text {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--fog);
}
.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-about .about-cover__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .teams__row {
    grid-template-columns: 56px 200px 1fr;
    align-items: baseline;
    gap: 0 22px;
  }
  .page-about .teams__no {
    grid-row: auto;
    padding-top: 0;
  }
  .page-about .timeline__item {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 0 24px;
  }
  .page-about .timeline__ver {
    margin-bottom: 0;
    padding-top: 4px;
  }
  .page-about .partners {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 28px;
  }
}

@media (min-width: 981px) {
  .page-about .about-layout {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: clamp(48px, 6vw, 96px) 24px;
  }
  .page-about .about-rail {
    grid-column: 1 / 4;
    grid-row: 1 / span 40;
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }
  .page-about .about-section--narrow {
    grid-column: 4 / 12;
  }
  .page-about .about-section--wide {
    grid-column: 1 / 13;
  }
  .page-about .about-cover__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 20px 24px;
  }
  .page-about .about-cover__crumb {
    grid-column: 1 / 13;
  }
  .page-about .about-cover__eyebrow {
    grid-column: 1 / 7;
  }
  .page-about .about-cover__title {
    grid-column: 1 / 10;
  }
  .page-about .about-cover__lede {
    grid-column: 7 / 13;
    align-self: end;
  }
  .page-about .about-cover__stats {
    grid-column: 1 / 13;
    margin-top: 26px;
  }
  .page-about .about-text {
    max-width: 62ch;
  }
  .page-about .teams-wrap {
    grid-template-columns: 7fr 4fr;
    align-items: start;
    gap: 40px;
  }
  .page-about .partners-wrap {
    grid-template-columns: 4fr 7fr;
    align-items: start;
    gap: 44px;
  }
  .page-about .partners {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-figure--side img {
    aspect-ratio: 4 / 5;
  }
  .page-about .about-cta__inner {
    grid-template-columns: 1fr;
    max-width: 78ch;
  }
}

/* ---------- 窄屏章节索引改为横向滑动 ---------- */
@media (max-width: 980px) {
  .page-about .about-rail {
    position: static;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 14px 0;
  }
  .page-about .about-rail .chapter-rail__list {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }
  .page-about .about-rail .chapter-rail__link {
    white-space: nowrap;
    padding: 6px 12px;
    border: 1px solid var(--line);
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-cover::before,
  .page-about .about-band::after {
    opacity: 0.3;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</｜｜DSML｜｜ invoke>
</output>