.page-about {
  --ao-pad: clamp(48px, 7vw, 92px);
  --ao-gap: clamp(20px, 3.2vw, 36px);
  --ao-line: var(--line);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.page-about p {
  margin: 0 0 14px;
}

.page-about .ao-crumbs {
  border-bottom: 1px solid var(--ao-line);
  background: var(--ink);
}

.page-about .ao-crumbs .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 11px 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--sage);
}

.page-about .ao-crumbs .crumbs__link {
  color: var(--mint-soft);
  text-decoration: none;
}

.page-about .ao-crumbs .crumbs__item + .crumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-about .ao-crumbs .crumbs__item[aria-current] {
  color: var(--sage);
}

/* ---------- 首屏 ---------- */

.page-about .ao-hero {
  position: relative;
  border-bottom: 1px solid var(--ao-line);
  background:
    radial-gradient(115% 90% at 88% -10%, rgba(57, 255, 182, .16), transparent 62%),
    linear-gradient(180deg, rgba(12, 42, 33, .72), var(--ink) 76%);
}

.page-about .ao-hero__inner {
  display: grid;
  gap: 28px;
  padding-block: clamp(38px, 7vw, 84px);
}

.page-about .ao-hero__eyebrow {
  color: var(--mint);
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
}

.page-about .ao-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 8.4vw, 66px);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-about .ao-hero__title span {
  display: block;
  color: var(--mint);
}

.page-about .ao-hero__lead {
  max-width: 40em;
  font-size: clamp(15px, 3.6vw, 17px);
  color: rgba(244, 241, 232, .82);
}

.page-about .ao-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .ao-hero__meta {
  margin-top: 20px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--sage);
}

.page-about .ao-hero__board {
  align-self: start;
  padding: 22px;
  background: linear-gradient(158deg, var(--panel), var(--panel-deep));
  border: 1px solid var(--ao-line);
  border-left: 3px solid var(--mint);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-about .ao-board__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.page-about .ao-board__head .index-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--sage);
}

.page-about .ao-board__list {
  display: grid;
  gap: 0;
  margin: 0 0 16px;
}

.page-about .ao-board__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-block: 10px;
  border-top: 1px solid var(--ao-line);
}

.page-about .ao-board__item dt {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--sage);
}

.page-about .ao-board__item dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 6vw, 34px);
  line-height: 1;
  color: var(--mint);
}

.page-about .ao-board__note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--ao-line);
  font-size: 12px;
  color: var(--mint-soft);
}

/* ---------- 通用标题 ---------- */

.page-about .ao-section__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 5.6vw, 40px);
  line-height: 1.16;
  letter-spacing: -.01em;
}

.page-about .index-label {
  display: block;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mint);
}

.page-about .mono {
  font-family: var(--font-mono);
}

/* ---------- 服务版图 ---------- */

.page-about .ao-scope {
  padding-block: var(--ao-pad);
  background:
    repeating-linear-gradient(90deg, rgba(31, 74, 60, .35) 0 1px, transparent 1px 96px),
    var(--ink);
}

.page-about .ao-scope__grid {
  display: grid;
  gap: var(--ao-gap);
  align-items: start;
}

.page-about .ao-scope__text p {
  color: rgba(244, 241, 232, .8);
  max-width: 42em;
}

.page-about .ao-scope__points {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-about .ao-scope__points li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  color: var(--paper);
}

.page-about .ao-scope__points .mono {
  font-size: 11px;
  color: var(--mint);
  letter-spacing: .1em;
}

.page-about .ao-figure {
  margin: 0;
  border: 1px solid var(--ao-line);
  background: var(--panel-deep);
}

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

.page-about .ao-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--ao-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--sage);
}

.page-about .ao-scope__figure {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

/* ---------- 数据带 ---------- */

.page-about .ao-band {
  display: flex;
  gap: 0;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  border-top: 1px solid var(--ao-line);
  border-bottom: 1px solid var(--ao-line);
  background: var(--panel);
  scrollbar-width: thin;
}

.page-about .ao-band__item {
  flex: 0 0 auto;
  min-width: 148px;
  padding: 18px 20px;
  border-right: 1px solid var(--ao-line);
}

.page-about .ao-band__num {
  display: block;
  font-size: clamp(24px, 6vw, 32px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--mint);
}

.page-about .ao-band__num em {
  font-style: normal;
  font-size: .55em;
  margin-left: 2px;
  color: var(--mint-soft);
}

.page-about .ao-band__label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--sage);
}

/* ---------- 历程 ---------- */

.page-about .ao-history {
  padding-block: var(--ao-pad);
  background: linear-gradient(180deg, var(--panel-deep), var(--ink) 62%);
  border-top: 1px solid var(--ao-line);
}

.page-about .ao-history__head {
  max-width: 52em;
  margin-bottom: 28px;
}

.page-about .ao-history__intro {
  color: rgba(244, 241, 232, .78);
}

.page-about .ao-history__banner {
  margin: 0 0 34px;
  border: 1px solid var(--ao-line);
  background: var(--panel);
}

.page-about .ao-history__banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: .78;
}

.page-about .ao-timeline {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--ao-line);
}

.page-about .ao-timeline__item {
  position: relative;
  padding-left: 20px;
}

.page-about .ao-timeline__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 26px;
  width: 9px;
  height: 9px;
  background: var(--ink);
  border: 1px solid var(--mint-soft);
}

.page-about .ao-timeline__item--current::before {
  background: var(--mint);
  border-color: var(--mint);
  box-shadow: var(--shadow-glow);
}

.page-about .ao-node {
  border-top: 1px solid var(--ao-line);
}

.page-about .ao-node__sum {
  display: grid;
  grid-template-columns: 66px 1fr 20px;
  align-items: baseline;
  gap: 10px;
  padding-block: 20px;
  cursor: pointer;
  list-style: none;
}

.page-about .ao-node__sum::-webkit-details-marker {
  display: none;
}

.page-about .ao-node__sum:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.page-about .ao-node__year {
  font-size: clamp(20px, 5vw, 28px);
  font-weight: 700;
  line-height: 1;
  color: var(--mint);
}

.page-about .ao-node__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .ao-node__mark {
  position: relative;
  width: 14px;
  height: 14px;
  align-self: center;
  justify-self: end;
  border: 1px solid var(--line);
}

.page-about .ao-node__mark::before,
.page-about .ao-node__mark::after {
  content: "";
  position: absolute;
  background: var(--mint-soft);
}

.page-about .ao-node__mark::before {
  left: 3px;
  right: 3px;
  top: 6px;
  height: 1px;
}

.page-about .ao-node__mark::after {
  top: 3px;
  bottom: 3px;
  left: 6px;
  width: 1px;
  transition: transform .2s var(--ease);
}

.page-about .ao-node[open] .ao-node__mark::after {
  transform: scaleY(0);
}

.page-about .ao-node__body {
  padding: 0 0 22px;
}

.page-about .ao-node__body p {
  margin: 0;
  max-width: 44em;
  font-size: 14px;
  color: rgba(244, 241, 232, .78);
}

/* ---------- 数据质量与团队 ---------- */

.page-about .ao-quality {
  padding-block: var(--ao-pad);
  background: var(--panel-deep);
  border-top: 1px solid var(--ao-line);
  border-bottom: 1px solid var(--ao-line);
}

.page-about .ao-quality__grid {
  display: grid;
  gap: var(--ao-gap);
  align-items: start;
}

.page-about .ao-quality__text p {
  color: rgba(244, 241, 232, .8);
  max-width: 40em;
}

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

.page-about .ao-checks li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 12px;
  padding-block: 14px;
  border-top: 1px solid var(--ao-line);
}

.page-about .ao-checks__no {
  grid-row: span 2;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mint);
}

.page-about .ao-checks strong {
  font-size: 14px;
  color: var(--paper);
}

.page-about .ao-checks span:last-child {
  grid-column: 2;
  font-size: 13px;
  color: var(--sage);
}

.page-about .ao-team {
  display: grid;
  gap: var(--ao-gap);
  margin-top: 44px;
  padding-top: 32px;
  border-top: 1px solid var(--ao-line);
}

.page-about .ao-team__total {
  margin: 0 0 10px;
  font-size: clamp(48px, 13vw, 78px);
  font-weight: 700;
  line-height: 1;
  color: var(--mint);
}

.page-about .ao-team__total em {
  font-style: normal;
  font-size: .28em;
  margin-left: 6px;
  color: var(--sage);
}

.page-about .ao-team__note {
  max-width: 34em;
  font-size: 13px;
  color: var(--sage);
}

.page-about .ao-team__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-about .ao-team__list li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 2px 14px;
  padding-block: 16px;
  border-top: 1px solid var(--ao-line);
}

.page-about .ao-team__num {
  grid-row: span 2;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--mint-soft);
}

.page-about .ao-team__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--paper);
}

.page-about .ao-team__desc {
  grid-column: 2;
  font-size: 13px;
  color: var(--sage);
}

/* ---------- 版本并行 ---------- */

.page-about .ao-versions {
  padding-block: var(--ao-pad);
  background: var(--ink);
}

.page-about .ao-versions__head {
  max-width: 50em;
  margin-bottom: 30px;
}

.page-about .ao-versions__head p {
  color: rgba(244, 241, 232, .78);
}

.page-about .ao-versions__grid {
  display: grid;
  gap: 18px;
}

.page-about .ao-version {
  padding: 24px;
  background: linear-gradient(160deg, var(--panel), var(--panel-deep));
  border: 1px solid var(--ao-line);
  border-top: 2px solid var(--mint);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-about .ao-version--amber {
  border-top-color: var(--amber);
}

.page-about .ao-version__title {
  margin: 14px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 4.4vw, 24px);
  line-height: 1.28;
}

.page-about .ao-version p {
  font-size: 14px;
  color: rgba(244, 241, 232, .8);
}

.page-about .ao-version__foot {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--ao-line);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mint-soft);
}

.page-about .ao-version--amber .ao-version__foot {
  color: var(--amber);
}

/* ---------- 合作生态 ---------- */

.page-about .ao-eco {
  padding-block: var(--ao-pad);
  background: var(--panel);
  border-top: 1px solid var(--ao-line);
}

.page-about .ao-eco__head {
  max-width: 50em;
  margin-bottom: 28px;
}

.page-about .ao-eco__head p {
  color: rgba(244, 241, 232, .8);
}

.page-about .ao-eco__grid {
  display: grid;
  gap: 1px;
  background: var(--ao-line);
  border: 1px solid var(--ao-line);
}

.page-about .ao-eco__card {
  padding: 22px 20px;
  background: var(--ink);
}

.page-about .ao-eco__num {
  margin: 0 0 8px;
  font-size: clamp(26px, 6vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
}

.page-about .ao-eco__num em {
  font-style: normal;
  font-size: .6em;
}

.page-about .ao-eco__card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .ao-eco__card p {
  margin: 0;
  font-size: 13px;
  color: var(--sage);
}

/* ---------- 服务原则 ---------- */

.page-about .ao-principles {
  padding-block: var(--ao-pad);
  background:
    radial-gradient(90% 70% at 10% 0%, rgba(57, 255, 182, .1), transparent 62%),
    var(--ink);
  border-top: 1px solid var(--ao-line);
}

.page-about .ao-principles__head {
  max-width: 46em;
  margin-bottom: 26px;
}

.page-about .ao-principles__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-about .ao-principles__list li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 12px;
  padding-block: 18px;
  border-top: 1px solid var(--ao-line);
}

.page-about .ao-principles__no {
  grid-row: span 2;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mint);
}

.page-about .ao-principles__list strong {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--paper);
}

.page-about .ao-principles__list p {
  grid-column: 2;
  margin: 0;
  font-size: 14px;
  color: rgba(244, 241, 232, .78);
  max-width: 42em;
}

.page-about .ao-principles__list a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 182, .4);
}

.page-about .ao-principles__list a:hover {
  border-bottom-color: var(--mint);
}

.page-about .ao-next {
  margin-top: 34px;
  padding: 22px;
  border: 1px solid var(--ao-line);
  border-left: 3px solid var(--amber);
  background: var(--panel-deep);
}

.page-about .ao-next__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--sage);
}

.page-about .ao-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-about .ao-team__list {
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--ao-line);
  }

  .page-about .ao-team__list li {
    border-top: 0;
    border-left: 1px solid var(--ao-line);
    padding: 16px 16px 16px 18px;
  }

  .page-about .ao-team__list li:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-about .ao-eco__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 860px) {
  .page-about .ao-hero__inner {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .ao-scope__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 48px;
  }

  .page-about .ao-quality__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 48px;
  }

  .page-about .ao-team {
    grid-template-columns: minmax(0, .8fr) minmax(0, 2fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .ao-versions__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

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

  .page-about .ao-node__sum {
    grid-template-columns: 96px 1fr 20px;
    gap: 20px;
  }
}

@media (min-width: 1080px) {
  .page-about {
    font-size: 16px;
  }

  .page-about .ao-timeline__item {
    padding-left: 32px;
  }

  .page-about .ao-band__item {
    flex: 1 1 0;
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ao-node__mark::after {
    transition: none;
  }
}
<<<END>>>