.page-about {
  background: var(--ink);
  color: var(--ink-text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  overflow-x: clip;
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-about .about-wrap {
  width: min(1180px, 100% - 32px);
  margin-inline: auto;
}

.page-about .inline-link {
  color: var(--cy);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 200, .45);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-about .inline-link:hover,
.page-about .inline-link:focus-visible {
  color: var(--cy-soft);
  border-bottom-color: var(--cy-soft);
}

/* ---------- 面包屑 ---------- */

.page-about .crumbs {
  width: min(1180px, 100% - 32px);
  margin: 22px auto 0;
  font-size: 13px;
  color: var(--mist);
}

.page-about .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .crumbs__item {
  color: var(--mist);
}

.page-about .crumbs__item + .crumbs__item::before {
  content: "/";
  margin: 0 9px;
  color: var(--line);
}

.page-about .crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--cy);
  border-bottom-color: var(--cy);
}

.page-about .crumbs__item[aria-current="page"] {
  color: var(--paper);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: clamp(32px, 5.5vw, 72px) 0 clamp(40px, 6.5vw, 84px);
  overflow: hidden;
  border-bottom: 1px solid rgba(47, 107, 94, .45);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -14%;
  width: min(860px, 92vw);
  height: min(860px, 92vw);
  background: radial-gradient(closest-side, rgba(56, 242, 200, .17), rgba(56, 242, 200, 0) 72%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  bottom: 4%;
  left: -18%;
  width: min(540px, 72vw);
  height: min(540px, 72vw);
  background: radial-gradient(closest-side, rgba(245, 165, 36, .1), rgba(245, 165, 36, 0) 72%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  width: min(1180px, 100% - 32px);
  margin-inline: auto;
}

.page-about .about-hero__eyebrow {
  display: inline-block;
  margin: 0;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .07em;
  color: var(--cy);
  border: 1px solid var(--line);
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 8vw, 86px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--paper);
  margin: clamp(16px, 2.6vw, 28px) 0 0;
  max-width: min(100%, 11.5em);
  text-wrap: balance;
}

.page-about .about-hero__lead {
  max-width: 64ch;
  margin: clamp(18px, 3vw, 30px) 0 0;
  font-size: clamp(16px, 1.9vw, 18.5px);
  color: var(--ink-text);
}

.page-about .about-hero__facts {
  list-style: none;
  margin: clamp(28px, 4.5vw, 52px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--line);
}

.page-about .about-hero__facts li {
  background: var(--ink-2);
  padding: 16px 16px 18px;
}

.page-about .about-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--gold);
}

.page-about .about-hero__unit {
  display: block;
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 通用章节骨架 ---------- */

.page-about .about-sec {
  padding: clamp(40px, 6vw, 84px) 0;
  border-top: 1px solid rgba(47, 107, 94, .45);
}

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

.page-about .about-sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(18px, 2.8vw, 32px);
}

.page-about .about-sec__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--cy);
  border: 1px solid var(--cy);
  padding: 3px 8px;
  line-height: 1.3;
}

.page-about .about-sec__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 4.2vw, 44px);
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--paper);
  margin: 0;
  text-wrap: balance;
}

.page-about .about-sec__body p {
  max-width: 68ch;
  margin: 0 0 16px;
  color: var(--ink-text);
}

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

.page-about .about-sec__body + .about-flow,
.page-about .about-sec__body + .about-partners,
.page-about .about-sec__body + .about-contact {
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-about .about-partners + .about-sec__body {
  margin-top: clamp(24px, 3.4vw, 40px);
}

/* 浅色章节 */

.page-about .about-sec--light {
  background: var(--paper);
  color: #222a26;
  border-top-color: transparent;
}

.page-about .about-sec--light .about-sec__num {
  color: var(--gold-d);
  border-color: var(--gold-d);
}

.page-about .about-sec--light .about-sec__title {
  color: var(--char);
}

.page-about .about-sec--light .about-sec__body p {
  color: #2a322e;
}

/* ---------- 团队矩阵 ---------- */

.page-about .about-team {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--line);
}

.page-about .about-team__item {
  position: relative;
  background: var(--ink-2);
  padding: 18px 18px 20px;
}

.page-about .about-team__btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin: 0;
  padding: 0;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-about .about-team__btn:focus-visible {
  outline: 2px solid var(--cy);
  outline-offset: 5px;
}

.page-about .about-team__role {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 22px);
  font-weight: 700;
  color: var(--paper);
  line-height: 1.2;
}

.page-about .about-team__count {
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--gold);
}

.page-about .about-team__mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
}

.page-about .about-team__mark::before,
.page-about .about-team__mark::after {
  content: "";
  position: absolute;
  background: var(--cy);
  transition: transform .18s var(--ease);
}

.page-about .about-team__mark::before {
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
}

.page-about .about-team__mark::after {
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
}

.page-about .about-team__btn[aria-expanded="true"] .about-team__mark::after {
  transform: scaleY(0);
}

.page-about .about-team__gist {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.68;
  color: var(--mist);
  max-width: 46ch;
}

.page-about .about-team__panel {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height .26s var(--ease), opacity .2s var(--ease);
}

.page-about .about-team__btn[aria-expanded="true"] ~ .about-team__panel {
  max-height: 460px;
  opacity: 1;
}

.page-about .about-team__panel .expand__body p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-text);
  max-width: 58ch;
  padding-top: 14px;
  border-top: 1px solid rgba(47, 107, 94, .6);
}

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

.page-about .about-team__figure .figure__box {
  border: 2px solid var(--line);
  max-width: 340px;
}

.page-about .about-team__figure .figure__cap {
  font-size: 13px;
  color: var(--mist);
  margin-top: 10px;
  max-width: 340px;
  line-height: 1.6;
}

.page-about .figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 发布流程 ---------- */

.page-about .about-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--line);
}

.page-about .about-flow__step {
  background: var(--ink-2);
  padding: 22px 20px 24px;
}

.page-about .about-flow__step::before {
  content: "";
  display: block;
  width: 26px;
  height: 4px;
  margin-bottom: 14px;
  background: var(--gold);
}

.page-about .about-flow__h {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.3vw, 21px);
  font-weight: 700;
  color: var(--paper);
  margin: 0 0 8px;
  line-height: 1.25;
}

.page-about .about-flow__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-text);
}

/* ---------- 时间轴 ---------- */

.page-about .about-timeline {
  position: relative;
  overflow: hidden;
  padding: clamp(14px, 2.4vw, 26px) 0 clamp(14px, 2.4vw, 26px);
}

.page-about .about-timeline__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .16;
  pointer-events: none;
}

.page-about .about-timeline__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  display: grid;
  gap: clamp(24px, 3.6vw, 42px);
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  transition: transform .24s var(--ease);
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -17px;
  top: 14px;
  bottom: -28px;
  width: 2px;
  background: rgba(56, 242, 200, .28);
}

.page-about .about-timeline__item:last-child::before {
  display: none;
}

.page-about .about-timeline__item::after {
  content: "";
  position: absolute;
  left: -22px;
  top: 9px;
  width: 12px;
  height: 12px;
  background: var(--gold);
  box-shadow: 0 0 0 4px var(--ink), 0 0 0 5px rgba(245, 165, 36, .34);
}

.page-about .about-timeline__item:hover {
  transform: translateX(4px);
}

.page-about .about-timeline__item:hover::after {
  background: var(--cy);
  box-shadow: 0 0 0 4px var(--ink), 0 0 0 5px rgba(56, 242, 200, .38);
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.6vw, 27px);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.15;
  color: var(--cy);
}

.page-about .about-timeline__h {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 700;
  color: var(--paper);
  margin: 0 0 5px;
  line-height: 1.28;
}

.page-about .about-timeline__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
  max-width: 62ch;
}

/* ---------- 覆盖范围（浅色章节） ---------- */

.page-about .about-scope {
  display: grid;
  gap: clamp(24px, 3.6vw, 44px);
}

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

.page-about .about-scope__figure .figure__box {
  border: 2px solid var(--char);
  max-width: 360px;
}

.page-about .about-scope__figure .figure__cap {
  margin-top: 10px;
  font-size: 13px;
  color: #4c5651;
  max-width: 360px;
  line-height: 1.6;
}

.page-about .about-scope__body p {
  max-width: 62ch;
  margin: 0 0 16px;
  color: #2a322e;
}

.page-about .about-scope__stats {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-top: 2px solid var(--char);
}

.page-about .about-scope__stats li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  font-size: 15px;
  color: #2a322e;
  border-bottom: 1px solid rgba(28, 35, 32, .18);
}

.page-about .about-scope__stats .mono {
  flex: none;
  min-width: 108px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--gold-d);
}

/* ---------- 合作生态 ---------- */

.page-about .about-partners {
  display: grid;
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--line);
}

.page-about .about-partners__card {
  background: var(--ink-2);
  padding: 22px 20px 26px;
}

.page-about .about-partners__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.4vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-partners__h {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.3vw, 21px);
  font-weight: 700;
  color: var(--paper);
  margin: 10px 0 8px;
  line-height: 1.28;
}

.page-about .about-partners__card > p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-text);
}

/* ---------- 联系 ---------- */

.page-about .about-contact {
  margin: 0;
  display: grid;
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--line);
}

.page-about .about-contact__row {
  background: var(--ink-2);
  padding: 14px 18px;
  display: grid;
  gap: 3px;
}

.page-about .about-contact dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-about .about-contact dd {
  margin: 0;
  font-size: 16px;
  color: var(--paper);
  word-break: break-word;
}

.page-about .about-contact dd a {
  color: var(--cy);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 200, .45);
}

.page-about .about-contact dd a:hover,
.page-about .about-contact dd a:focus-visible {
  color: var(--cy-soft);
  border-bottom-color: var(--cy-soft);
}

.page-about .about-contact__note {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 68ch;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-about .about-hero__facts li {
    padding: 18px 18px 20px;
  }

  .page-about .about-timeline__list {
    padding-left: 30px;
    gap: clamp(26px, 3.4vw, 44px);
  }

  .page-about .about-timeline__item {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }

  .page-about .about-timeline__item::before {
    left: -25px;
  }

  .page-about .about-timeline__item::after {
    left: -30px;
  }
}

@media (min-width: 760px) {
  .page-about .about-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 880px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, .8fr);
    align-items: start;
  }

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

  .page-about .about-team__figure {
    justify-self: end;
    position: sticky;
    top: calc(var(--hdr-h) + 24px);
  }

  .page-about .about-scope {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    align-items: start;
  }

  .page-about .about-scope__body p:first-child {
    margin-top: 0;
  }
}

@media (min-width: 1080px) {
  .page-about .about-hero__lead {
    max-width: 58ch;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-team__panel,
  .page-about .about-team__mark::before,
  .page-about .about-team__mark::after,
  .page-about .about-timeline__item {
    transition: none;
  }

  .page-about .about-timeline__item:hover {
    transform: none;
  }
}
<<<END>>>