.page-about {
  --about-gap: clamp(18px, 3vw, 32px);
  --about-section-pad: clamp(48px, 7vw, 104px);
  background: var(--ink);
  color: var(--silver);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(20px, 3vw, 34px);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-about .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color .18s var(--ease);
}

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

.page-about .breadcrumb span[aria-current="page"] {
  color: var(--cyan);
  font-weight: 500;
}

/* ---------- 首屏窄栏 + 图文错位 ---------- */
.page-about .about-lead {
  position: relative;
  padding: clamp(4px, 1vw, 12px) 0 clamp(48px, 7vw, 88px);
}

.page-about .about-lead::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -12%;
  width: 62%;
  height: 132%;
  background: radial-gradient(circle at 62% 38%, rgba(0, 229, 200, .1), transparent 64%);
  pointer-events: none;
}

.page-about .about-lead__grid {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 44px);
  align-items: start;
  margin-top: clamp(20px, 3.4vw, 40px);
}

.page-about .about-lead h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(27px, 5.4vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-about .about-lead__p {
  max-width: 620px;
  margin: 18px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--silver);
}

.page-about .about-lead__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-lead__meta li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-left: 14px;
  border-left: 2px solid var(--rail-line);
}

.page-about .about-lead__meta .num {
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-about .about-lead__meta span:last-child {
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--muted);
}

.page-about .about-lead__figure {
  position: relative;
  margin: 0;
}

.page-about .about-lead__figure .figure__media {
  border-radius: var(--r-md);
  border: 1px solid var(--rail-line);
  background: var(--graphite);
  overflow: hidden;
}

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

.page-about .about-lead__figure .figure__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .figure__tag {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 9px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(0, 229, 200, .35);
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: .06em;
}

/* ---------- 内容生产时间轴 ---------- */
.page-about .about-flow .section__title {
  max-width: 760px;
}

.page-about .flow-timeline {
  margin: clamp(28px, 4vw, 52px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: clamp(26px, 3.6vw, 42px);
}

.page-about .flow-step::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 60px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--rail-line) 0%, rgba(0, 229, 200, .5) 100%);
}

.page-about .flow-step:last-child::before {
  display: none;
}

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

.page-about .flow-step__index {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid var(--rail-line);
  background: var(--graphite-deep);
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-about .flow-step:hover .flow-step__index {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 200, .1);
}

.page-about .flow-step__body {
  padding-top: 6px;
}

.page-about .flow-step__tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--r-pill);
  background: rgba(0, 229, 200, .1);
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: .08em;
}

.page-about .flow-step__body h3 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.4vw, 23px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .flow-step__body p {
  max-width: 700px;
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--silver);
}

/* ---------- 规模数据条带 ---------- */
.page-about .about-scale {
  position: relative;
  padding-top: var(--about-section-pad);
  padding-bottom: var(--about-section-pad);
}

.page-about .about-scale::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 201, 77, .35), transparent);
  pointer-events: none;
}

.page-about .about-scale__head {
  max-width: 640px;
}

.page-about .about-scale__head .section__lead {
  margin-top: 14px;
}

.page-about .scale-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(28px, 4vw, 46px);
  background: var(--rail-line);
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .scale-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(20px, 3vw, 34px) clamp(16px, 2.4vw, 26px);
  background: var(--graphite-deep);
  transition: background .2s var(--ease);
}

.page-about .scale-item:hover {
  background: var(--graphite);
}

.page-about .scale-item__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(32px, 6.4vw, 54px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold);
}

.page-about .scale-item__label {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--white);
}

.page-about .scale-item__note {
  font-size: 12px;
  line-height: 1.65;
  color: var(--muted);
}

.page-about .about-scale__foot {
  max-width: 720px;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 团队构成 ---------- */
.page-about .about-team .section__lead {
  margin-top: 14px;
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(30px, 4.4vw, 52px);
  align-items: start;
  margin-top: clamp(28px, 4vw, 48px);
}

.page-about .team-bars {
  display: flex;
  flex-direction: column;
  gap: clamp(20px, 2.6vw, 28px);
}

.page-about .team-bar {
  position: relative;
}

.page-about .team-bar__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px 14px;
  margin-bottom: 10px;
}

.page-about .team-bar__name {
  margin: 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 16.5px;
  letter-spacing: .01em;
  color: var(--white);
}

.page-about .team-bar__count {
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  color: var(--cyan);
}

.page-about .team-bar__track {
  height: 10px;
  border-radius: var(--r-pill);
  background: rgba(42, 54, 68, .65);
  overflow: hidden;
}

.page-about .team-bar__fill {
  display: block;
  width: var(--bar-w, 0);
  height: 100%;
  border-radius: var(--r-pill);
  background: var(--grad-path);
  transition: width .5s var(--ease);
}

.page-about .team-bar--edit {
  --bar-w: 47.8%;
}

.page-about .team-bar--media {
  --bar-w: 30.4%;
}

.page-about .team-bar--media .team-bar__fill {
  background: linear-gradient(135deg, #7CFF5A 0%, #00E5C8 100%);
}

.page-about .team-bar--ops {
  --bar-w: 21.7%;
}

.page-about .team-bar--ops .team-bar__fill {
  background: linear-gradient(135deg, #FF8A3D 0%, #FFC94D 100%);
}

.page-about .team-bar__desc {
  margin: 10px 0 0;
  max-width: 660px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-about .team-total {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  margin-top: 4px;
  padding: 16px 18px;
  border: 1px solid var(--rail-line);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(255, 201, 77, .05);
}

.page-about .team-total__num {
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.03em;
}

.page-about .team-total__txt {
  flex: 1 1 200px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
}

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

.page-about .about-team__figure .figure__media {
  border-radius: var(--r-md);
  border: 1px solid var(--rail-line);
  background: var(--graphite-deep);
  overflow: hidden;
}

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

.page-about .about-team__figure .figure__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 合作生态 ---------- */
.page-about .about-eco .section__lead {
  margin-top: 14px;
}

.page-about .eco__grid {
  display: grid;
  gap: clamp(30px, 4.4vw, 52px);
  align-items: center;
  margin-top: clamp(26px, 4vw, 46px);
}

.page-about .eco-orbit {
  display: block;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.page-about .eco-legend {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-about .eco-legend li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
}

.page-about .eco-legend__dot {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-radius: 50%;
}

.page-about .eco-legend__dot--org {
  background: var(--orange);
}

.page-about .eco-legend__dot--data {
  background: var(--green);
}

.page-about .eco-legend__dot--self {
  background: var(--cyan);
}

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

.page-about .eco__figure .figure__media {
  border-radius: var(--r-md);
  border: 1px solid var(--rail-line);
  background: var(--graphite);
  overflow: hidden;
}

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

.page-about .eco__figure .figure__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 长期坚持 ---------- */
.page-about .long-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(28px, 4vw, 46px);
  background: var(--rail-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .long-item {
  padding: clamp(22px, 3vw, 32px) clamp(18px, 2.6vw, 30px);
  background: var(--graphite);
}

.page-about .long-item__num {
  display: block;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-about .long-item h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .long-item p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-about .about-long__note {
  display: flex;
  flex-direction: column;
  gap: clamp(18px, 2.4vw, 24px);
  margin-top: clamp(30px, 4vw, 46px);
  padding-top: clamp(24px, 3vw, 34px);
  border-top: 1px solid var(--rail-line);
}

.page-about .about-long__note p {
  max-width: 640px;
  margin: 0;
  font-family: var(--font-editorial);
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.9;
  color: var(--white);
}

.page-about .about-long__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 尾部通道 ---------- */
.page-about .about-cta {
  padding: clamp(44px, 6vw, 84px) 0 clamp(56px, 7vw, 96px);
}

.page-about .about-cta__box {
  position: relative;
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  padding: clamp(26px, 4vw, 48px);
  border-radius: var(--r-md);
  border: 1px solid rgba(0, 229, 200, .22);
  background:
    radial-gradient(circle at 12% 0%, rgba(0, 229, 200, .14), transparent 58%),
    linear-gradient(140deg, var(--graphite) 0%, var(--graphite-deep) 100%);
  overflow: hidden;
}

.page-about .about-cta__box::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 46%;
  height: 180%;
  background: linear-gradient(120deg, rgba(124, 255, 90, .08), transparent 70%);
  transform: rotate(10deg);
  pointer-events: none;
}

.page-about .about-cta__text h2 {
  position: relative;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 3.4vw, 32px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-about .about-cta__text p {
  position: relative;
  max-width: 620px;
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
}

.page-about .about-cta__actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 滚动显现兜底 ---------- */
.page-about [data-reveal] {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-bar__fill {
    transition: none;
  }
}

/* ---------- 平板以上 ---------- */
@media (min-width: 760px) {
  .page-about .scale-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .about-long__note {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .page-about .about-long__actions {
    flex: 0 0 auto;
  }

  .page-about .about-cta__box {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    align-items: center;
  }

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

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-about .about-lead__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(36px, 5vw, 76px);
  }

  .page-about .flow-step {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 24px;
  }

  .page-about .flow-step::before {
    left: 36px;
    top: 76px;
  }

  .page-about .flow-step__index {
    width: 72px;
    height: 72px;
    font-size: 16px;
  }

  .page-about .eco__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-about .eco-orbit {
    margin: 0;
  }
}

@media (min-width: 1000px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-about .about-team__figure {
    position: sticky;
    top: 80px;
  }
}
<<<END>>>