.page-about {
  --about-rail-w: 168px;
  --about-gap: clamp(20px, 3.4vw, 48px);
  background:
    radial-gradient(120% 70% at 8% 0%, rgba(63, 224, 208, .10), transparent 58%),
    radial-gradient(90% 60% at 100% 12%, rgba(255, 138, 60, .09), transparent 62%);
  color: var(--paper);
  padding-bottom: clamp(48px, 8vw, 110px);
}

/* ---------- 面包屑 ---------- */
.page-about .crumbs {
  padding-top: clamp(96px, 13vw, 148px);
}
.page-about .crumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--idx);
}
.page-about .crumbs-list li + li::before {
  content: "/";
  margin-right: 10px;
  color: rgba(63, 224, 208, .55);
}
.page-about .crumbs-list a {
  color: var(--idx);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-about .crumbs-list a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan-deep);
}
.page-about .crumbs-list [aria-current="page"] {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: grid;
  gap: var(--about-gap);
  margin-top: clamp(24px, 4vw, 44px);
}
.page-about .about-hero-copy {
  position: relative;
  border-left: 2px solid var(--cyan-deep);
  padding-left: clamp(16px, 2.6vw, 30px);
}
.page-about .kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 14px;
}
.page-about .about-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 4.6vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--paper);
  max-width: 22ch;
}
.page-about .lede {
  max-width: 46ch;
  margin: 0 0 26px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--rock);
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .fig-about-hero {
  margin: 0;
}
.page-about .fig-about-hero img {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: 0 26px 60px -30px rgba(5, 16, 26, .9);
}
.page-about .figure-caption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--idx);
}

/* ---------- 运行规模 ---------- */
.page-about .about-metrics {
  margin-top: clamp(44px, 7vw, 80px);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(90deg, rgba(19, 38, 58, .72), rgba(10, 22, 34, .35));
}
.page-about .about-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: clamp(20px, 3vw, 30px) 0;
}
.page-about .metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px clamp(10px, 2vw, 24px);
  border-left: 1px solid var(--line-soft);
}
.page-about .metric:first-child {
  border-left-color: transparent;
}
.page-about .metric-num {
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -.02em;
}
.page-about .metric-label {
  font-size: 13px;
  color: var(--rock);
  letter-spacing: .04em;
}

/* ---------- 通用区块头 ---------- */
.page-about .section-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.6vw, 42px);
}
.page-about .section-head h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.1vw, 2.25rem);
  line-height: 1.16;
  color: var(--paper);
}
.page-about .section-lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

/* ---------- 阶段时间轴 ---------- */
.page-about .about-stages {
  margin-top: clamp(52px, 8vw, 96px);
}
.page-about .stages-layout {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}
.page-about .stages-rail {
  position: relative;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(14, 29, 44, .82);
  align-self: start;
}
.page-about .stages-rail-title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--idx);
}
.page-about .stages-rail-list {
  display: flex;
  flex-direction: row;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-about .stages-rail-list li {
  flex: 0 0 auto;
}
.page-about .stages-rail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  font-size: 13px;
  color: var(--rock);
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}
.page-about .stages-rail-link .mono {
  font-size: 11px;
  color: var(--cyan-deep);
}
.page-about .stages-rail-link:hover,
.page-about .stages-rail-link.is-active {
  color: var(--paper);
  border-color: var(--cyan-deep);
  background: rgba(63, 224, 208, .08);
}
.page-about .stages-rail-link.is-active .mono {
  color: var(--cyan);
}

.page-about .stages-list {
  position: relative;
  margin: 0;
  padding: 0 0 0 26px;
  list-style: none;
}
.page-about .stages-list::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--cyan-deep) 55%, rgba(255, 138, 60, .55));
}
.page-about .stage-card {
  position: relative;
  margin-bottom: clamp(22px, 3vw, 34px);
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(19, 38, 58, .92), rgba(10, 22, 34, .82));
  box-shadow: 0 20px 46px -34px rgba(5, 16, 26, .95);
  transition: transform .28s var(--ease), border-color .28s var(--ease);
}
.page-about .stage-card:last-child {
  margin-bottom: 0;
}
.page-about .stage-card::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 34px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(63, 224, 208, .12);
}
.page-about .stage-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan-deep);
}
.page-about .stage-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}
.page-about .stage-no {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1;
  color: rgba(63, 224, 208, .26);
  letter-spacing: -.03em;
}
.page-about .stage-name {
  margin: 0;
  font-size: clamp(1rem, 1.7vw, 1.2rem);
  line-height: 1.45;
  font-weight: 600;
  color: var(--paper);
}
.page-about .stage-body {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
}
.page-about .stage-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-about .stage-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}
.page-about .stage-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 9px;
  height: 1px;
  background: var(--amber);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  margin-top: clamp(56px, 9vw, 108px);
}
.page-about .team-layout {
  display: grid;
  gap: var(--about-gap);
}
.page-about .team-cards {
  display: grid;
  gap: 16px;
}
.page-about .team-card {
  padding: clamp(20px, 2.4vw, 28px);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan-deep);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(14, 29, 44, .76);
  transition: border-left-color .24s var(--ease), background-color .24s var(--ease), transform .24s var(--ease);
}
.page-about .team-card:hover {
  border-left-color: var(--cyan);
  background: rgba(19, 38, 58, .95);
  transform: translateX(4px);
}
.page-about .team-count {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
}
.page-about .team-role {
  margin: 0 0 12px;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--paper);
}
.page-about .team-desc {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}
.page-about .team-duties {
  margin: 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line-soft);
  display: grid;
  gap: 8px;
}
.page-about .team-duties li {
  font-size: 13px;
  line-height: 1.65;
  color: var(--idx);
  padding-left: 14px;
  position: relative;
}
.page-about .team-duties li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--cyan);
}
.page-about .fig-about-team {
  margin: 0;
}
.page-about .fig-about-team img,
.page-about .fig-about-index img {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: 0 24px 54px -34px rgba(5, 16, 26, .95);
}

/* ---------- 索引体系 ---------- */
.page-about .about-index {
  margin-top: clamp(56px, 9vw, 108px);
}
.page-about .index-layout {
  display: grid;
  gap: var(--about-gap);
}
.page-about .fig-about-index {
  margin: 0;
}
.page-about .index-levels {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
}
.page-about .index-level {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: clamp(18px, 2.2vw, 24px);
  background: rgba(14, 29, 44, .9);
}
.page-about .index-level-no {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--cyan);
  padding-top: 3px;
}
.page-about .index-level h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--paper);
}
.page-about .index-level p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}
.page-about .index-note {
  padding: clamp(18px, 2.2vw, 24px);
  border: 1px dashed var(--line);
  border-radius: var(--r-sm);
  background: rgba(19, 38, 58, .55);
}
.page-about .index-note p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}
.page-about .text-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-deep);
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-about .text-link:hover {
  color: var(--paper);
  border-bottom-color: var(--amber);
}

/* ---------- 本地服务 ---------- */
.page-about .about-local {
  margin-top: clamp(56px, 9vw, 108px);
}
.page-about .local-grid {
  display: grid;
  gap: 16px;
}
.page-about .local-card {
  padding: clamp(20px, 2.4vw, 28px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(14, 29, 44, .78);
  transition: border-color .24s var(--ease), transform .24s var(--ease);
}
.page-about .local-card:hover {
  border-color: var(--cyan-deep);
  transform: translateY(-3px);
}
.page-about .local-card h3 {
  margin: 0 0 12px;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--paper);
}
.page-about .local-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}
.page-about .local-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.page-about .local-card-filters {
  background:
    linear-gradient(150deg, rgba(63, 224, 208, .10), rgba(14, 29, 44, .78) 55%);
  border-color: var(--line);
}
.page-about .local-card-cta {
  background: linear-gradient(150deg, rgba(255, 138, 60, .12), rgba(14, 29, 44, .82) 60%);
  border-color: rgba(255, 138, 60, .3);
}
.page-about .local-card-cta .btn {
  margin-top: 18px;
}

/* ---------- 协作生态 ---------- */
.page-about .about-eco {
  margin-top: clamp(56px, 9vw, 108px);
}
.page-about .eco-band {
  display: grid;
  gap: var(--about-gap);
  padding: clamp(26px, 4vw, 48px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(140deg, rgba(19, 38, 58, .95), rgba(10, 22, 34, .9) 60%),
    repeating-linear-gradient(90deg, rgba(124, 138, 153, .06) 0 1px, transparent 1px 48px);
}
.page-about .eco-band-copy h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 2.8vw, 2.05rem);
  line-height: 1.2;
  color: var(--paper);
}
.page-about .eco-band-copy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
  max-width: 58ch;
}
.page-about .eco-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}
.page-about .eco-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: rgba(10, 22, 34, .68);
}
.page-about .eco-no {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--cyan-deep);
  font-size: 12px;
  color: var(--cyan);
}
.page-about .eco-item h3 {
  margin: 0 0 6px;
  font-size: .98rem;
  font-weight: 600;
  color: var(--paper);
}
.page-about .eco-item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--rock);
}

/* ---------- 三个坚持 ---------- */
.page-about .about-belief {
  margin-top: clamp(56px, 9vw, 108px);
}
.page-about .belief-grid {
  display: grid;
  gap: 16px;
}
.page-about .belief-card {
  position: relative;
  padding: clamp(22px, 2.6vw, 32px);
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: var(--paper);
  color: var(--ink);
  overflow: hidden;
}
.page-about .belief-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 4px;
}
.page-about .belief-accurate::after { background: var(--cyan); }
.page-about .belief-timely::after { background: var(--clay); }
.page-about .belief-cover::after  { background: var(--moss); }
.page-about .belief-no {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--cyan-deep);
}
.page-about .belief-timely .belief-no { color: var(--clay); }
.page-about .belief-cover .belief-no  { color: var(--moss); }
.page-about .belief-card h3 {
  margin: 0 0 12px;
  font-size: 1.06rem;
  line-height: 1.5;
  font-weight: 700;
  color: var(--ink);
}
.page-about .belief-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: #2c3a48;
}

.page-about .belief-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: clamp(24px, 3vw, 34px);
  padding: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(100deg, rgba(19, 38, 58, .95), rgba(10, 22, 34, .8));
}
.page-about .belief-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  max-width: 46ch;
}
.page-about .belief-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-about .about-metrics-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .page-about .local-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .belief-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .team-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .team-card:nth-child(3) {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: end;
  }
  .page-about .stages-layout {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    align-items: start;
  }
  .page-about .stages-rail {
    position: sticky;
    top: 108px;
  }
  .page-about .stages-rail-list {
    flex-direction: column;
    overflow: visible;
  }
  .page-about .stages-rail-link {
    width: 100%;
    border-radius: var(--r-sm);
  }
  .page-about .team-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-about .team-cards {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-about .team-card:nth-child(3) {
    grid-column: auto;
  }
  .page-about .fig-about-team {
    position: sticky;
    top: 108px;
  }
  .page-about .index-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }
  .page-about .fig-about-index {
    position: sticky;
    top: 108px;
  }
  .page-about .stage-card {
    margin-left: 18px;
  }
  .page-about .stage-card:nth-child(even) {
    margin-left: 54px;
  }
  .page-about .eco-band {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

@media (min-width: 1200px) {
  .page-about {
    --about-rail-w: 188px;
  }
  .page-about .stages-list {
    padding-left: 34px;
  }
  .page-about .stage-card::before {
    left: -34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .stage-card,
  .page-about .local-card,
  .page-about .team-card {
    transition: opacity .2s linear;
  }
  .page-about .stage-card:hover,
  .page-about .local-card:hover,
  .page-about .team-card:hover {
    transform: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>