.page-about {
  --about-pad-y: clamp(56px, 7vw, 100px);
  --about-gap: clamp(16px, 2vw, 28px);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
}

/* ---------- 页首 ---------- */
.page-about .about-hero {
  padding: 20px 0 var(--about-pad-y);
}

.page-about .crumbs {
  margin-bottom: 30px;
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(70, 86, 106, .8);
}

.page-about .crumbs ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-about .crumbs a {
  color: var(--navy);
  text-decoration: none;
}

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

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

.page-about .about-hero__copy .index-label {
  margin-bottom: 16px;
}

.page-about .about-hero__copy .t-lede {
  margin-top: 22px;
  max-width: 34em;
}

.page-about .about-hero__media {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--mist);
  aspect-ratio: 3 / 4;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .about-hero__media .media__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 48px 22px 18px;
  background: linear-gradient(to top, rgba(10, 36, 64, .82), rgba(10, 36, 64, 0));
  color: var(--on-dark);
  font-size: 12px;
  letter-spacing: .09em;
  line-height: 1.6;
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: center;
  }

  .page-about .about-hero__media {
    transform: translateY(26px);
    margin-bottom: -26px;
  }
}

/* ---------- 页面索引条 ---------- */
.page-about .about-toc {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.page-about .about-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-about .about-toc__list::-webkit-scrollbar {
  display: none;
}

.page-about .about-toc__list li {
  flex: 0 0 auto;
}

.page-about .about-toc__list a {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 50px;
  padding: 0 14px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--navy);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: border-color 200ms linear, color 200ms linear;
}

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

.page-about .about-toc__list span {
  font-size: 11px;
  letter-spacing: .16em;
  font-weight: 500;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

/* ---------- 窄栏章节 ---------- */
.page-about .about-chapter {
  padding: var(--about-pad-y) 0;
}

.page-about .about-chapter .index-label {
  margin-bottom: 14px;
}

.page-about .about-chapter .t-section {
  margin-bottom: 22px;
}

.page-about .about-chapter .t-body + .t-body {
  margin-top: 16px;
}

/* ---------- 时间线 ---------- */
.page-about .about-tl {
  list-style: none;
  margin: 44px 0 0;
  padding: 0 0 0 28px;
  border-left: 1px solid var(--line);
  display: grid;
  gap: 30px;
}

.page-about .about-tl__item {
  position: relative;
}

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange);
  transform: translateX(-50%);
  box-shadow: 0 0 0 4px var(--paper), 0 0 0 5px var(--line);
}

.page-about .about-tl__year {
  display: block;
  font-size: 12px;
  letter-spacing: .16em;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-tl__text {
  margin: 8px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 复购比例数据带 ---------- */
.page-about .about-focus {
  position: relative;
  overflow: hidden;
  padding: var(--about-pad-y) 0;
  background: var(--navy);
  color: var(--on-dark);
}

.page-about .about-focus::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(60% 72% at 84% 10%, rgba(242, 104, 31, .24), transparent 66%),
    radial-gradient(72% 60% at 4% 94%, rgba(255, 138, 61, .13), transparent 70%);
}

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

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

.page-about .index-label--on-dark {
  color: var(--orange-soft);
}

.page-about .about-focus .t-section {
  color: var(--on-dark);
  margin-bottom: 20px;
}

.page-about .t-body--on-dark {
  color: rgba(241, 245, 249, .82);
}

.page-about .about-focus__num {
  margin: 38px 0 0;
  font-size: clamp(76px, 13vw, 152px);
  line-height: .88;
  font-weight: 700;
  letter-spacing: -.045em;
  color: var(--on-dark);
  font-variant-numeric: tabular-nums;
}

.page-about .about-focus__num span {
  font-size: .38em;
  margin-left: 6px;
  color: var(--orange-soft);
  letter-spacing: 0;
}

.page-about .about-focus__numlabel {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: rgba(241, 245, 249, .62);
}

.page-about .about-chart-figure {
  margin: 0;
  padding: 26px 22px 22px;
  border-radius: var(--r-lg);
  background: rgba(10, 36, 64, .5);
  border: 1px solid rgba(241, 245, 249, .14);
}

.page-about .about-chart {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

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

.page-about .about-chart__cap {
  margin: 20px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(241, 245, 249, .7);
}

@media (min-width: 900px) {
  .page-about .about-focus__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 68px;
    align-items: center;
  }
}

/* ---------- 通用区块标题 ---------- */
.page-about .about-head {
  max-width: 720px;
  margin-bottom: 40px;
}

.page-about .about-head .index-label {
  margin-bottom: 14px;
}

.page-about .about-head .t-section {
  margin-bottom: 18px;
}

/* ---------- 服务标准 ---------- */
.page-about .about-standards {
  padding: var(--about-pad-y) 0;
  background: var(--paper);
}

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

.page-about .about-std {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 30px 26px 34px;
  border-radius: var(--r-md);
  background: var(--mist);
}

.page-about .about-std--sky {
  background: var(--sky);
  border-radius: var(--r-lg) var(--r-sm) var(--r-lg) var(--r-sm);
}

.page-about .about-std--sand {
  background: var(--sand);
  border-radius: var(--r-sm) var(--r-lg) var(--r-sm) var(--r-lg);
}

.page-about .about-std--navy {
  background: var(--midnight);
  color: var(--on-dark);
  border-radius: var(--r-lg);
}

.page-about .about-std__figure {
  margin: 0;
  font-size: clamp(32px, 4.6vw, 50px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -.025em;
  color: var(--navy);
  font-variant-numeric: tabular-nums;
}

.page-about .about-std__figure span {
  font-size: .42em;
  margin-left: 4px;
  letter-spacing: .02em;
  color: var(--orange);
}

.page-about .about-std--navy .about-std__figure {
  color: var(--orange-soft);
}

.page-about .about-std__title {
  margin: 10px 0 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--navy);
}

.page-about .about-std--navy .about-std__title {
  color: var(--on-dark);
}

.page-about .about-std__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink);
}

.page-about .about-std--navy .about-std__desc {
  color: rgba(241, 245, 249, .82);
}

@media (min-width: 680px) {
  .page-about .about-standards__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding: var(--about-pad-y) 0;
  background: var(--mist);
}

.page-about .about-team__grid {
  display: grid;
  gap: 20px;
}

.page-about .about-team-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 30px 26px 32px;
  border-radius: var(--r-lg);
  background: var(--paper);
  border: 1px solid var(--line-soft);
  outline: none;
  transition: transform 240ms ease, border-color 240ms ease;
}

.page-about .about-team-card:hover,
.page-about .about-team-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--orange);
}

.page-about .about-team-card .index-label {
  color: var(--orange);
}

.page-about .about-team-card__title {
  margin: 4px 0 0;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--navy);
}

.page-about .about-team-card__base {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink);
}

.page-about .about-team-card__more {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(70, 86, 106, .86);
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

.page-about .about-team-card__media {
  margin: 0 0 14px;
  border-radius: var(--r-sm);
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--sky);
}

.page-about .about-team-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    align-items: start;
  }

  .page-about .about-team-card--a {
    min-height: 320px;
  }

  .page-about .about-team-card--b {
    min-height: 420px;
  }

  .page-about .about-team-card--c {
    min-height: 520px;
  }

  .page-about .about-team-card__more {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    padding-top: 0;
    border-top-color: transparent;
    transition: max-height 340ms ease, opacity 220ms linear, padding-top 260ms ease;
  }

  .page-about .about-team-card:hover .about-team-card__more,
  .page-about .about-team-card:focus-within .about-team-card__more,
  .page-about .about-team-card:focus-visible .about-team-card__more {
    max-height: 160px;
    opacity: 1;
    padding-top: 10px;
    border-top-color: var(--line);
  }
}

/* ---------- 覆盖网络 ---------- */
.page-about .about-network {
  padding: var(--about-pad-y) 0;
  background: var(--paper);
}

.page-about .about-network__grid {
  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);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-network__cell {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 96px;
  padding: 20px 18px;
  background-color: var(--paper);
  background-image: repeating-linear-gradient(90deg, rgba(18, 54, 95, .05) 0 1px, transparent 1px 44px);
  transition: background-color 220ms linear;
}

.page-about .about-network__cell:hover {
  background-color: var(--sand);
}

.page-about .about-network__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
}

.page-about .about-network__city {
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--navy);
}

.page-about .about-network__note {
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(70, 86, 106, .88);
  max-width: 46em;
}

@media (min-width: 640px) {
  .page-about .about-network__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 协作生态 ---------- */
.page-about .about-eco {
  padding: var(--about-pad-y) 0;
  background: var(--sand);
}

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

.page-about .about-eco__media {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--paper);
  aspect-ratio: 3 / 2;
}

.page-about .about-eco__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .about-eco__copy .index-label {
  margin-bottom: 14px;
}

.page-about .about-eco__copy .t-section {
  margin-bottom: 20px;
}

.page-about .about-eco__copy .t-body + .t-body {
  margin-top: 16px;
}

@media (min-width: 900px) {
  .page-about .about-eco__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 48px;
    align-items: center;
  }
}

/* ---------- 服务报告 ---------- */
.page-about .about-report {
  padding: var(--about-pad-y) 0;
  background: var(--mist);
}

.page-about .about-report__card {
  display: grid;
  gap: 24px;
  padding: 36px 30px;
  border-radius: var(--r-lg);
  background: var(--paper);
  border-left: 6px solid var(--green);
}

.page-about .about-report__lead .index-label {
  margin-bottom: 14px;
}

.page-about .about-report__lead .t-section {
  margin: 0;
}

.page-about .about-report__body .t-body {
  margin-bottom: 24px;
}

@media (min-width: 900px) {
  .page-about .about-report__card {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: start;
    padding: 44px 40px;
  }

  .page-about .about-report__body .t-body {
    margin-top: 4px;
  }
}

/* ---------- 收尾联系卡 ---------- */
.page-about .about-cta {
  padding: var(--about-pad-y) 0 calc(var(--about-pad-y) + 8px);
  background: var(--paper);
}

.page-about .about-cta__card {
  padding: 40px 30px 36px;
  border-radius: var(--r-lg);
  background: var(--midnight);
  color: var(--on-dark);
  position: relative;
  overflow: hidden;
}

.page-about .about-cta__card::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 104, 31, .3), transparent 68%);
  pointer-events: none;
}

.page-about .about-cta__card .t-section {
  color: var(--on-dark);
  margin: 12px 0 18px;
}

.page-about .about-cta__card .t-body {
  max-width: 40em;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
}

.page-about .about-cta__contact {
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(241, 245, 249, .18);
  font-size: 13px;
  letter-spacing: .04em;
  color: rgba(241, 245, 249, .74);
  font-variant-numeric: tabular-nums;
}

@media (min-width: 900px) {
  .page-about .about-cta__card {
    padding: 56px 56px 48px;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-team-card,
  .page-about .about-network__cell,
  .page-about .about-toc__list a,
  .page-about .about-team-card__more {
    transition: none;
  }

  .page-about .about-team-card:hover,
  .page-about .about-team-card:focus-visible {
    transform: none;
  }
}
<<<END>>>