.page-about {
  --about-rail: 172px;
  --about-gap: 32px;
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-h2 {
  font-size: clamp(1.6rem, 4.4vw, 2.6rem);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.015em;
  margin: 10px 0 0;
  transform: skewX(-3deg);
  transform-origin: left center;
}

/* ============ 首屏 ============ */
.page-about .about-intro {
  position: relative;
  padding: calc(var(--header-h) + 56px) 0 0;
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(245, 242, 232, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 242, 232, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--paper);
  overflow: hidden;
}

.page-about .about-intro::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  background: linear-gradient(90deg,
    var(--fluo) 0 18%,
    var(--green) 18% 58%,
    var(--moss) 58% 82%,
    var(--clay) 82% 100%);
}

.page-about .about-intro .crumbs,
.page-about .about-intro .crumbs a {
  color: rgba(245, 242, 232, .68);
}

.page-about .about-intro .crumbs a:hover {
  color: var(--fluo);
}

.page-about .about-intro .idx {
  color: rgba(232, 255, 58, .82);
}

.page-about .about-intro__grid {
  display: grid;
  gap: 36px;
  margin-top: 26px;
}

.page-about .about-intro h1 {
  margin: 12px 0 0;
  font-size: clamp(2rem, 7vw, 3.9rem);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.025em;
  transform: skewX(-3deg);
  transform-origin: left center;
  max-width: 15em;
}

.page-about .about-intro__lede {
  margin: 22px 0 0;
  max-width: 46ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(245, 242, 232, .8);
}

.page-about .about-intro__aside {
  padding: 22px 20px 24px;
  background: rgba(18, 96, 62, .42);
  border-left: 3px solid var(--fluo);
}

.page-about .about-intro__aside .round-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.page-about .about-intro__aside-text {
  margin: 16px 0 0;
  font-size: .9rem;
  line-height: 1.78;
  color: rgba(245, 242, 232, .78);
}

.page-about .about-intro__aside-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-about .about-statline {
  list-style: none;
  margin: 52px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(245, 242, 232, .16);
  border: 1px solid rgba(245, 242, 232, .16);
}

.page-about .about-statline > li {
  background: var(--ink);
  padding: 20px 16px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.page-about .about-statline .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 5vw, 2.9rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--fluo);
}

.page-about .about-statline .stat__label {
  font-size: .82rem;
  line-height: 1.6;
  color: rgba(245, 242, 232, .66);
}

.page-about .about-ruler {
  height: 26px;
  margin-top: 40px;
  background-image: repeating-linear-gradient(90deg,
    rgba(245, 242, 232, .26) 0 1px,
    transparent 1px 26px);
  border-top: 1px solid rgba(245, 242, 232, .14);
}

/* ============ 平台在做的事 ============ */
.page-about .about-mission {
  padding: 80px 0 84px;
  background: var(--paper);
}

.page-about .about-mission .idx {
  color: var(--stone);
}

.page-about .about-mission__grid {
  display: grid;
  gap: 40px;
  margin-top: 8px;
}

.page-about .about-mission__text p {
  margin: 20px 0 0;
  max-width: 44ch;
  line-height: 1.85;
  color: #24313f;
}

.page-about .about-mission__foot {
  padding-left: 16px;
  border-left: 3px solid var(--moss);
  font-size: .92rem;
  color: var(--stone);
}

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

.page-about .about-mission__list > li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 8px;
  padding: 22px 0 24px;
  border-bottom: 1px solid var(--line-soft);
  transition: background .18s var(--ease), padding-left .18s var(--ease);
}

.page-about .about-mission__list > li:hover {
  background: rgba(220, 232, 220, .55);
  padding-left: 12px;
}

.page-about .about-mission__num {
  font-size: .78rem;
  color: var(--stone);
  padding-top: 4px;
}

.page-about .about-mission__list h3 {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .about-mission__list p {
  margin: 10px 0 0;
  font-size: .92rem;
  line-height: 1.78;
  color: #3b4640;
}

/* ============ 赛季覆盖范围 ============ */
.page-about .about-coverage {
  padding: 80px 0 84px;
  background: var(--mist);
}

.page-about .about-head {
  margin-bottom: 34px;
}

.page-about .about-head .idx {
  color: var(--stone);
}

.page-about .about-head__lead {
  margin: 16px 0 0;
  max-width: 52ch;
  line-height: 1.8;
  color: #3b4640;
}

.page-about .cover-layout {
  display: grid;
  gap: 26px;
}

.page-about .cover-matrix__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-about .cover-matrix {
  min-width: 540px;
}

.page-about .cover-matrix__row {
  display: grid;
  grid-template-columns: minmax(120px, 1.5fr) repeat(4, minmax(0, 1fr));
  align-items: stretch;
  border-bottom: 1px solid var(--line-soft);
  transition: background .18s var(--ease);
}

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

.page-about .cover-matrix__row:hover {
  background: rgba(232, 255, 58, .2);
}

.page-about .cover-matrix__name {
  padding: 16px 14px;
  font-size: .9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
}

.page-about .cover-matrix__cell {
  display: grid;
  place-items: center;
  padding: 16px 8px;
  border-left: 1px solid var(--line-soft);
  font-size: .78rem;
  color: var(--stone);
}

.page-about .cover-matrix__cell i {
  width: 11px;
  height: 11px;
  background: var(--moss);
  display: block;
  transition: background .18s var(--ease), transform .18s var(--ease);
}

.page-about .cover-matrix__row:hover .cover-matrix__cell i {
  background: var(--green);
  transform: scale(1.35);
}

.page-about .cover-matrix__row--head {
  background: var(--ink);
  border-bottom: 0;
}

.page-about .cover-matrix__row--head .cover-matrix__name,
.page-about .cover-matrix__row--head .cover-matrix__cell {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  font-weight: 400;
  color: rgba(245, 242, 232, .86);
  padding: 12px 8px;
  border-left: 1px solid rgba(245, 242, 232, .16);
}

.page-about .cover-matrix__row--head .cover-matrix__cell i {
  display: none;
}

.page-about .cover-matrix__row--head .cover-matrix__name {
  border-left: 0;
  padding-left: 14px;
}

.page-about .cover-matrix__row--head:hover {
  background: var(--ink);
}

.page-about .cover-side {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-about .cover-side__card {
  padding: 20px 18px 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--moss);
}

.page-about .cover-side__card--solid {
  background: var(--green);
  border-color: var(--green);
  border-left-color: var(--fluo);
  color: var(--paper);
}

.page-about .cover-side__card--solid .idx {
  color: rgba(232, 255, 58, .84);
}

.page-about .cover-side__big {
  margin: 8px 0 0;
  font-size: clamp(2.4rem, 7vw, 3.4rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--paper);
}

.page-about .cover-side__txt {
  margin: 12px 0 0;
  font-size: .88rem;
  line-height: 1.78;
  color: #3b4640;
}

.page-about .cover-side__card--solid .cover-side__txt {
  color: rgba(245, 242, 232, .82);
}

.page-about .about-band {
  margin: 44px 0 0;
}

/* ============ 发展历程 ============ */
.page-about .about-timeline {
  padding: 80px 0 84px;
  background: var(--paper);
}

.page-about .timeline-grid {
  display: grid;
  gap: 26px;
}

.page-about .timeline-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .timeline-nav a {
  display: block;
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: .84rem;
  color: var(--stone);
  text-decoration: none;
  border-bottom: 2px solid var(--line-soft);
  transition: color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}

.page-about .timeline-nav a:hover,
.page-about .timeline-nav a[aria-current="true"] {
  color: var(--ink);
  border-bottom-color: var(--fluo);
  background: rgba(232, 255, 58, .26);
}

.page-about .timeline-list {
  min-width: 0;
}

.page-about .timeline-item {
  position: relative;
  padding: 0 0 36px 24px;
  border-left: 1px solid var(--line);
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--fluo);
  border: 1px solid var(--ink);
}

.page-about .timeline-item__year {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--green);
}

.page-about .timeline-item h3 {
  margin: 8px 0 0;
  font-size: 1.06rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .timeline-item p {
  margin: 10px 0 0;
  max-width: 52ch;
  font-size: .92rem;
  line-height: 1.82;
  color: #3b4640;
}

.page-about .timeline-figure {
  margin: 6px 0 0 24px;
}

/* ============ 团队与工作方式 ============ */
.page-about .about-team {
  padding: 80px 0 84px;
  background: var(--mist);
}

.page-about .team-flow {
  display: grid;
  gap: 10px;
  margin-bottom: 44px;
}

.page-about .team-node {
  position: relative;
  padding: 18px 16px 20px;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}

.page-about .team-node__role {
  margin: 0;
  font-size: .96rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .team-node__num {
  margin: 6px 0 0;
  font-size: 1.5rem;
  font-weight: 300;
  line-height: 1;
  color: var(--green);
}

.page-about .team-node__desc {
  margin: 10px 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-about .team-node:hover {
  border-color: var(--green);
  background: #ffffff;
  transform: translateY(-3px);
}

.page-about .team-body {
  display: grid;
  gap: 32px;
}

.page-about .team-figure {
  margin: 0;
}

.page-about .team-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .team-steps > li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 8px;
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .team-steps__num {
  font-size: .78rem;
  color: var(--stone);
  padding-top: 4px;
}

.page-about .team-steps h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .team-steps p {
  margin: 9px 0 0;
  font-size: .9rem;
  line-height: 1.78;
  color: #3b4640;
}

/* ============ 合作生态与荣誉 ============ */
.page-about .about-trust {
  padding: 80px 0 84px;
  background: var(--ink);
  color: var(--paper);
}

.page-about .about-head--dark .idx {
  color: rgba(232, 255, 58, .78);
}

.page-about .about-head--dark .about-h2 {
  color: var(--paper);
}

.page-about .trust-grid {
  display: grid;
  gap: 44px;
}

.page-about .trust-partners__big {
  margin: 0;
  font-size: clamp(3rem, 11vw, 4.6rem);
  font-weight: 300;
  line-height: .95;
  letter-spacing: -0.05em;
  font-variant-numeric: tabular-nums;
  color: var(--fluo);
}

.page-about .trust-partners__big--second {
  margin-top: 32px;
  color: var(--moss);
}

.page-about .trust-partners__label {
  margin: 12px 0 0;
  max-width: 34ch;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(245, 242, 232, .76);
}

.page-about .trust-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(245, 242, 232, .18);
}

.page-about .trust-list > li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 8px;
  padding: 18px 0 20px;
  border-bottom: 1px solid rgba(245, 242, 232, .14);
}

.page-about .trust-list__num {
  font-size: .76rem;
  color: rgba(232, 255, 58, .7);
  padding-top: 3px;
}

.page-about .trust-list p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(245, 242, 232, .84);
}

/* ============ 服务与联系 ============ */
.page-about .about-cta {
  padding: 72px 0 88px;
  background: var(--paper);
}

.page-about .about-cta__panel {
  display: grid;
  gap: 32px;
  padding: 36px 26px 40px;
  background: var(--green);
  border-left: 6px solid var(--fluo);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}

.page-about .about-cta__panel::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 200px;
  height: 200px;
  background: rgba(232, 255, 58, .1);
  transform: skewX(-18deg);
  pointer-events: none;
}

.page-about .about-cta__panel .idx {
  color: rgba(232, 255, 58, .84);
}

.page-about .about-cta__panel .about-h2 {
  color: var(--paper);
}

.page-about .about-cta__promises {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: 54ch;
}

.page-about .about-cta__promises li {
  position: relative;
  padding-left: 20px;
  font-size: .92rem;
  line-height: 1.78;
  color: rgba(245, 242, 232, .84);
}

.page-about .about-cta__promises li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 10px;
  height: 2px;
  background: var(--fluo);
}

.page-about .about-cta__action {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  z-index: 1;
}

.page-about .about-cta__contact {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-cta__contact-label {
  color: rgba(232, 255, 58, .8);
}

.page-about .about-cta__contact-value {
  font-size: .96rem;
  letter-spacing: 0.01em;
  color: var(--paper);
  word-break: break-all;
}

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

.page-about .about-cta__btns .btn {
  flex: 1 1 auto;
  text-align: center;
  justify-content: center;
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-about .about-statline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .team-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .page-about .about-cta__panel {
    padding: 44px 40px 48px;
  }
}

@media (min-width: 900px) {
  .page-about .about-intro {
    padding-top: calc(var(--header-h) + 76px);
  }

  .page-about .about-intro__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
  }

  .page-about .about-mission__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .cover-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 28px;
    align-items: start;
  }

  .page-about .timeline-grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 52px;
  }

  .page-about .timeline-nav {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .page-about .timeline-nav a {
    border-bottom: 0;
    border-left: 2px solid var(--line-soft);
    padding: 9px 0 9px 14px;
  }

  .page-about .timeline-nav a:hover,
  .page-about .timeline-nav a[aria-current="true"] {
    border-left-color: var(--fluo);
    border-bottom-color: transparent;
  }

  .page-about .team-flow {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
  }

  .page-about .team-node + .team-node {
    margin-left: 12px;
  }

  .page-about .team-node + .team-node::before {
    content: "";
    position: absolute;
    left: -13px;
    top: 50%;
    width: 12px;
    height: 1px;
    background: var(--line);
    transition: background .2s var(--ease), height .2s var(--ease);
  }

  .page-about .team-node + .team-node:hover::before {
    background: var(--fluo);
    height: 3px;
  }

  .page-about .team-body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .trust-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-cta__panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 40px;
    align-items: end;
  }

  .page-about .about-cta__action {
    justify-self: end;
    align-items: flex-end;
    text-align: right;
  }

  .page-about .about-cta__btns .btn {
    flex: 0 0 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .cover-matrix__cell i,
  .page-about .team-node,
  .page-about .team-node + .team-node::before,
  .page-about .about-mission__list > li,
  .page-about .timeline-nav a {
    transition: none;
  }
}
<<<END>>>