.page-about {
  --about-hair: rgba(108, 124, 140, 0.28);
  --about-hair-soft: rgba(108, 124, 140, 0.16);
  --about-paper-hair: rgba(20, 33, 46, 0.16);
  --about-glow: radial-gradient(120% 90% at 88% -10%, rgba(34, 240, 224, 0.16), transparent 62%);
  display: block;
  padding-bottom: 72px;
}

.page-about .breadcrumbs {
  margin: 20px 0 18px;
}

/* ---------- 首屏 ---------- */
.page-about .about-lead {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-about .lead-paper {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--paper);
  color: var(--paper-ink);
  border-radius: var(--radius-lg);
  padding: 28px 22px 26px;
  box-shadow: 0 26px 54px -34px rgba(0, 0, 0, 0.95);
}

.page-about .lead-paper::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(var(--about-paper-hair) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-paper-hair) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: 0.5;
  -webkit-mask-image: radial-gradient(85% 70% at 100% 0%, #000, transparent 76%);
  mask-image: radial-gradient(85% 70% at 100% 0%, #000, transparent 76%);
}

.page-about .lead-paper .eyebrow {
  color: #0E6E68;
}

.page-about .lead-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 7.2vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--ink-900);
}

.page-about .lead-paper .lede {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: #2A3A4A;
  max-width: 62ch;
}

.page-about .lead-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 12px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--about-paper-hair);
}

.page-about .lead-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-about .lead-stat-num {
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.05;
  color: var(--ink-900);
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
}

.page-about .lead-stat-unit {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: #55677A;
}

.page-about .lead-stat-label {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: #5C6E80;
}

.page-about .lead-side {
  background: var(--ink-700);
  background-image: var(--about-glow);
  border: 1px solid var(--about-hair);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
}

.page-about .lead-side-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel-2);
}

.page-about .lead-side-list {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-about .lead-side-row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--about-hair-soft);
}

.page-about .lead-side-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .lead-side-key {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--steel-2);
}

.page-about .lead-side-val {
  margin: 0;
  font-size: 14.5px;
  color: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-about .lead-side-val .num {
  color: var(--cyan);
  font-size: 17px;
}

.page-about .lead-side-note {
  font-size: 12px;
  color: var(--steel-2);
  line-height: 1.5;
}

/* ---------- 通用小节 ---------- */
.page-about .section {
  margin-top: 60px;
}

.page-about .section-title {
  font-family: var(--font-display);
  font-weight: 800;
}

.page-about .inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 240, 224, 0.42);
  padding-bottom: 1px;
}

.page-about .inline-link:hover,
.page-about .inline-link:focus-visible {
  border-bottom-color: var(--cyan);
  color: #6FF7EC;
}

/* ---------- 时间线 ---------- */
.page-about .timeline-media {
  margin: 22px 0 0;
}

.page-about .tl-jump {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
}

.page-about .tl-jump-link {
  display: inline-block;
  padding: 7px 14px;
  border-radius: var(--pill);
  border: 1px solid var(--about-hair);
  background: rgba(16, 38, 58, 0.7);
  color: var(--steel-2);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-about .tl-jump-link:hover,
.page-about .tl-jump-link:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .filter-bar {
  margin-top: 20px;
}

.page-about .tl-list {
  position: relative;
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
}

.page-about .tl-list::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 12px;
  bottom: 30px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, rgba(34, 240, 224, 0.22) 42%, rgba(255, 107, 44, 0.42) 100%);
}

.page-about .tl-item {
  position: relative;
  padding: 0 0 22px 34px;
}

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

.page-about .tl-node {
  position: absolute;
  left: 0;
  top: 18px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(8, 19, 31, 0.9);
}

.page-about .tl-item:nth-child(even) .tl-node {
  border-color: var(--orange);
}

.page-about .tl-card {
  background: var(--ink-700);
  border: 1px solid var(--about-hair);
  border-radius: var(--radius-md);
  padding: 18px 18px 16px;
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.page-about .tl-card:hover {
  border-color: rgba(34, 240, 224, 0.42);
  transform: translateY(-2px);
  box-shadow: 0 22px 40px -30px rgba(0, 0, 0, 0.95);
}

.page-about .tl-era {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 10px;
}

.page-about .tl-era .num {
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-about .tl-item:nth-child(even) .tl-era .num {
  color: var(--orange);
}

.page-about .tl-era-tag {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel-2);
}

.page-about .tl-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.42;
  color: var(--paper);
}

.page-about .tl-text {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: #A9B9C7;
}

/* ---------- 数据服务 ---------- */
.page-about .service-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 26px;
}

.page-about .service-card {
  background: var(--ink-700);
  border: 1px solid var(--about-hair);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .service-card--wide {
  background:
    linear-gradient(140deg, rgba(255, 107, 44, 0.16), transparent 58%),
    var(--ink-700);
  border-color: rgba(255, 107, 44, 0.34);
}

.page-about .service-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel-2);
}

.page-about .service-value {
  margin: 2px 0 0;
  font-family: var(--font-num);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.04em;
  color: var(--orange);
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.page-about .service-value-unit {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--steel-2);
}

.page-about .service-title {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.45;
  color: var(--paper);
}

.page-about .service-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: #A9B9C7;
}

.page-about .service-footnote {
  margin: 20px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--steel-2);
}

/* ---------- 团队 ---------- */
.page-about .team-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 26px;
}

.page-about .team-figure {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-about .team-count {
  background: var(--ink-700);
  border: 1px solid var(--about-hair);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}

.page-about .team-count-num {
  margin: 0;
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--cyan);
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.page-about .team-count-unit {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--steel-2);
}

.page-about .team-count-label {
  margin: 8px 0 0;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--steel-2);
}

.page-about .team-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .team-card {
  background: var(--paper);
  color: var(--paper-ink);
  border-radius: var(--radius-lg);
  padding: 20px 20px 18px;
  border: 1px solid transparent;
  outline: none;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.page-about .team-card:hover,
.page-about .team-card:focus-within {
  transform: translateY(-3px);
  box-shadow: 0 24px 44px -32px rgba(0, 0, 0, 0.95);
  border-color: rgba(34, 240, 224, 0.4);
}

.page-about .team-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #0E6E68;
}

.page-about .team-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.36;
  color: var(--ink-900);
}

.page-about .team-text {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: #2F3F4E;
}

.page-about .team-detail {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--about-paper-hair);
  font-size: 13.5px;
  line-height: 1.75;
  color: #4B5C6D;
}

.page-about .team-detail .inline-link {
  color: #0B5F5A;
  border-bottom-color: rgba(11, 95, 90, 0.4);
}

.page-about .team-detail .inline-link:hover,
.page-about .team-detail .inline-link:focus-visible {
  color: #083F3C;
  border-bottom-color: #083F3C;
}

/* ---------- 合作生态 ---------- */
.page-about .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 26px;
}

.page-about .partner-card {
  position: relative;
  background: var(--ink-700);
  border: 1px solid var(--about-hair);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  overflow: hidden;
}

.page-about .partner-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), rgba(34, 240, 224, 0));
}

.page-about .partner-index {
  margin: 0;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--steel-2);
}

.page-about .partner-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .partner-text {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: #A9B9C7;
}

/* ---------- 荣誉 ---------- */
.page-about .honor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.page-about .honor-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .honor-item {
  background: var(--ink-700);
  border: 1px solid var(--about-hair);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.page-about .honor-label {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel-2);
}

.page-about .honor-text {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  font-family: var(--font-num);
  letter-spacing: 0.01em;
}

/* ---------- 结尾行动区 ---------- */
.page-about .next-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  background:
    linear-gradient(135deg, rgba(34, 240, 224, 0.14), transparent 56%),
    var(--ink-700);
  border: 1px solid rgba(34, 240, 224, 0.28);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
}

.page-about .next-copy .lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: #A9B9C7;
  max-width: 60ch;
}

.page-about .next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: center;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .lead-paper {
    padding: 34px 30px 30px;
  }

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

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

  .page-about .tl-list {
    padding-left: 4px;
  }
}

@media (min-width: 900px) {
  .page-about .about-lead {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
    gap: 18px;
    align-items: start;
  }

  .page-about .lead-paper {
    padding: 40px 38px 34px;
  }

  .page-about .lead-side {
    position: sticky;
    top: 24px;
  }

  .page-about .timeline-media {
    margin-top: 26px;
  }

  .page-about .tl-item {
    padding-left: 44px;
  }

  .page-about .tl-list::before {
    left: 8px;
  }

  .page-about .tl-card {
    padding: 22px 24px 20px;
  }

  .page-about .service-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .service-card--wide {
    grid-column: span 2;
  }

  .page-about .team-layout {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.62fr);
    gap: 24px;
    align-items: start;
  }

  .page-about .team-cards {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .honor-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

  .page-about .next-panel {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    padding: 32px 30px;
    align-items: center;
  }

  .page-about .next-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) and (hover: hover) and (prefers-reduced-motion: no-preference) {
  .page-about .team-detail {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    transition: max-height 220ms ease, opacity 200ms ease, margin-top 200ms ease, padding-top 200ms ease;
  }

  .page-about .team-card:hover .team-detail,
  .page-about .team-card:focus-within .team-detail {
    max-height: 260px;
    opacity: 1;
    margin-top: 10px;
    padding-top: 10px;
    border-top-color: var(--about-paper-hair);
  }
}

@media (min-width: 1180px) {
  .page-about .lead-paper {
    padding: 46px 44px 38px;
  }

  .page-about .section {
    margin-top: 76px;
  }

  .page-about .tl-list {
    padding-left: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-card,
  .page-about .team-card,
  .page-about .tl-jump-link {
    transition: none;
  }

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