.page-about {
  --about-rail: 84px;
  --about-edge: rgba(255, 90, 31, .14);
  position: relative;
  padding-bottom: 56px;
  background:
    radial-gradient(900px 520px at 86% -10%, var(--about-edge), transparent 62%),
    var(--ink);
  color: var(--fog);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
}

.page-about a {
  color: inherit;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
}

.page-about p {
  margin: 0;
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-about :focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

/* 首屏 */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 20px 0 44px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .16;
  -webkit-mask-image: radial-gradient(70% 70% at 28% 18%, #000 0%, transparent 76%);
  mask-image: radial-gradient(70% 70% at 28% 18%, #000 0%, transparent 76%);
}

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

.page-about .about-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 22px;
}

.page-about .about-hero__title {
  display: flex;
  flex-direction: column;
  margin: 10px 0 18px;
  font-size: clamp(38px, 9vw, 84px);
  line-height: .95;
  letter-spacing: -.03em;
  font-weight: 600;
}

.page-about .about-hero__brand {
  margin-bottom: 12px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .22em;
  line-height: 1.4;
  color: var(--signal);
}

.page-about .about-hero__line--accent {
  color: var(--orange);
}

.page-about .about-hero__intro {
  max-width: 46ch;
  color: var(--mist);
  font-size: clamp(15px, 2.4vw, 18px);
  line-height: 1.75;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* 速览卡 */
.page-about .about-dossier {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--orange);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02) 46%), var(--panel);
}

.page-about .about-dossier__title {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--signal);
}

.page-about .about-dossier__list {
  margin: 12px 0 0;
}

.page-about .about-dossier__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
}

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

.page-about .about-dossier__row dt {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--mist);
}

.page-about .about-dossier__row dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--fog);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.page-about .about-dossier__link {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-micro) var(--ease);
}

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

/* 区块通用头 */
.page-about .about-chronicle,
.page-about .about-capabilities,
.page-about .about-team,
.page-about .about-ecosystem,
.page-about .about-next {
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-next {
  border-bottom: 0;
}

.page-about .about-section__head {
  max-width: 660px;
  margin-bottom: 26px;
}

.page-about .about-section__head .index {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-about .about-section__head h2 {
  margin: 10px 0 10px;
  font-size: clamp(26px, 5.4vw, 44px);
  line-height: 1.04;
  letter-spacing: -.02em;
}

.page-about .about-section__head p {
  color: var(--mist);
  font-size: 15px;
}

/* 编年史 */
.page-about .about-chronicle__grid {
  display: grid;
  gap: 22px;
}

.page-about .about-chronicle__rail-label {
  margin-bottom: 8px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--steel);
}

.page-about .about-years {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 2px 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-color: var(--orange) var(--panel);
  scrollbar-width: thin;
}

.page-about .about-years a {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur-micro) var(--ease), border-color var(--dur-micro) var(--ease);
}

.page-about .about-years a:hover {
  color: var(--fog);
  border-color: var(--orange);
}

.page-about .about-chronicle__body {
  min-width: 0;
}

.page-about .about-chronicle__media {
  margin: 0 0 26px;
}

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 10px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), var(--signal) 55%, transparent);
  opacity: .55;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 28px 34px;
  scroll-margin-top: 96px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--orange);
  transition: background-color var(--dur-panel) var(--ease);
}

.page-about .about-timeline__item:target::before {
  background: var(--orange);
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--signal);
}

.page-about .about-timeline__text h3 {
  margin: 4px 0 8px;
  font-size: clamp(20px, 3.2vw, 26px);
  line-height: 1.15;
  letter-spacing: -.01em;
}

.page-about .about-timeline__text p {
  max-width: 52ch;
  color: var(--mist);
  font-size: 15px;
}

.page-about .about-timeline__meter {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 9px;
  border-radius: 2px;
  background: var(--green);
  color: var(--fog);
  font-size: 12px;
  letter-spacing: .04em;
}

/* 能力矩阵 */
.page-about .about-tabs {
  margin-top: 4px;
}

.page-about .about-tabs .tabs__list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
  scrollbar-color: var(--orange) var(--panel);
}

.page-about .about-tabs .tabs__tab {
  flex: 0 0 auto;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: .06em;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--dur-micro) var(--ease), border-color var(--dur-micro) var(--ease), background-color var(--dur-micro) var(--ease);
}

.page-about .about-tabs .tabs__tab:hover {
  color: var(--fog);
  border-color: var(--line-strong);
}

.page-about .about-tabs .tabs__tab[aria-selected="true"] {
  color: var(--fog);
  background: var(--card);
  border-color: var(--line-strong);
  box-shadow: inset 3px 0 0 var(--orange);
}

.page-about .about-tabs .tabs__panel[hidden] {
  display: none;
}

.page-about .about-panel {
  display: grid;
  gap: 22px;
  padding: 24px 0 0;
}

.page-about .about-panel__main h3 {
  margin-bottom: 10px;
  font-size: clamp(21px, 3.4vw, 28px);
  line-height: 1.15;
}

.page-about .about-panel__main p {
  max-width: 52ch;
  color: var(--mist);
  font-size: 15px;
}

.page-about .about-scenes {
  display: grid;
  gap: 9px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-scenes li {
  position: relative;
  padding-left: 18px;
  color: var(--mist);
  font-size: 14.5px;
}

.page-about .about-scenes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 7px;
  height: 7px;
  background: var(--orange);
}

.page-about .about-panel__cta {
  margin-top: 18px;
}

.page-about .about-panel__cta a {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: border-color var(--dur-micro) var(--ease);
}

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

.page-about .about-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  align-self: start;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--line);
}

.page-about .about-figures > div {
  padding: 14px 12px;
  background: var(--card);
  min-width: 0;
}

.page-about .about-figures dt {
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-about .about-figures dd {
  margin: 6px 0 0;
  font-family: var(--font-data);
  font-size: clamp(17px, 2.8vw, 23px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

/* 团队 */
.page-about .about-team__grid {
  display: grid;
  gap: 26px;
}

.page-about .about-roles {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-roles li {
  padding-top: 12px;
  border-top: 1px solid var(--line);
  min-width: 0;
}

.page-about .about-roles__num {
  display: block;
  font-family: var(--font-data);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-roles h3 {
  margin: 6px 0 4px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
}

.page-about .about-roles p {
  color: var(--mist);
  font-size: 14px;
}

.page-about .about-team__note {
  margin-top: 20px;
  padding: 14px 16px;
  border-left: 3px solid var(--signal);
  background: var(--panel);
  color: var(--mist);
  font-size: 14px;
}

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

/* 生态与资质 */
.page-about .about-ecosystem__grid {
  display: grid;
  gap: 22px;
}

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

.page-about .about-facts {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-facts li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
}

.page-about .about-facts__no {
  padding-top: 3px;
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--signal);
}

.page-about .about-facts h3 {
  margin-bottom: 3px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
}

.page-about .about-facts p {
  color: var(--mist);
  font-size: 14px;
}

.page-about .about-honors {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding: 2px 2px 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--orange) var(--panel);
  scrollbar-width: thin;
}

.page-about .about-honors::-webkit-scrollbar {
  height: 6px;
}

.page-about .about-honors::-webkit-scrollbar-track {
  background: var(--panel);
  border-radius: 99px;
}

.page-about .about-honors::-webkit-scrollbar-thumb {
  background: var(--orange);
  border-radius: 99px;
}

.page-about .about-honor {
  flex: 0 0 246px;
  scroll-snap-align: start;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--card);
}

.page-about .about-honor h3 {
  margin: 10px 0 6px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
}

.page-about .about-honor p {
  color: var(--mist);
  font-size: 13px;
}

/* 下一步 */
.page-about .about-route {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-route a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  text-decoration: none;
  transition: border-color var(--dur-panel) var(--ease), background-color var(--dur-panel) var(--ease);
}

.page-about .about-route a:hover {
  border-color: var(--orange);
  background: var(--card);
}

.page-about .about-route strong {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .01em;
}

.page-about .about-route__arrow {
  font-family: var(--font-data);
  font-size: 16px;
  color: var(--orange);
}

.page-about .about-route small {
  grid-column: 1 / -1;
  color: var(--mist);
  font-size: 13px;
  line-height: 1.6;
}

/* 响应式 */
@media (min-width: 640px) {
  .page-about {
    --about-rail: 92px;
  }

  .page-about .about-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 22px;
  }

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

  .page-about .about-honor {
    flex-basis: 270px;
  }
}

@media (min-width: 880px) {
  .page-about {
    font-size: 17px;
    padding-bottom: 72px;
  }

  .page-about .about-hero {
    padding: 26px 0 60px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .82fr);
    align-items: end;
    gap: 44px;
  }

  .page-about .about-chronicle,
  .page-about .about-capabilities,
  .page-about .about-team,
  .page-about .about-ecosystem,
  .page-about .about-next {
    padding: 60px 0;
  }

  .page-about .about-chronicle__grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 40px;
  }

  .page-about .about-chronicle__rail {
    position: sticky;
    top: 28px;
    align-self: start;
  }

  .page-about .about-years {
    flex-direction: column;
    gap: 2px;
    padding: 0 0 0 16px;
    border-left: 1px solid var(--line-strong);
    overflow: visible;
  }

  .page-about .about-years a {
    padding: 6px 0;
    border: 0;
    border-radius: 0;
    font-size: 15px;
  }

  .page-about .about-years a:hover {
    border: 0;
    color: var(--orange);
  }

  .page-about .about-timeline__item {
    padding-left: 40px;
  }

  .page-about .about-panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .8fr);
    gap: 36px;
    align-items: start;
    padding-top: 28px;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 46px;
    align-items: center;
  }

  .page-about .about-ecosystem__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }
}

@media (min-width: 1120px) {
  .page-about .about-route {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-hero__intro {
    max-width: 44ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}
<<<PAGE_CSS_END>>>