.page-about {
  --about-panel: rgba(18, 52, 90, 0.52);
  --about-panel-deep: rgba(7, 20, 38, 0.46);
  --about-text: rgba(247, 249, 252, 0.76);
  --about-text-soft: rgba(247, 249, 252, 0.68);
  background:
    radial-gradient(1000px 560px at 88% -8%, rgba(23, 224, 192, 0.13), transparent 62%),
    radial-gradient(760px 520px at 0% 32%, rgba(255, 107, 53, 0.08), transparent 68%),
    var(--ink-800);
  color: var(--paper);
  overflow-x: hidden;
}

.page-about .about-crumbs {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-top: clamp(16px, 4vw, 34px);
  padding-bottom: 0;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 480px;
  background-image:
    linear-gradient(rgba(169, 183, 204, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 183, 204, 0.08) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(72% 88% at 50% 0%, #000 26%, transparent 78%);
  mask-image: radial-gradient(72% 88% at 50% 0%, #000 26%, transparent 78%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-about .about-hero__title {
  margin: 0.35em 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 8vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--paper);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .page-about .about-hero__title {
    background: linear-gradient(104deg, var(--paper) 26%, rgba(23, 224, 192, 0.95) 90%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

.page-about .about-hero__text {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--about-text);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

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

.page-about .about-hero__figure .media-frame__img,
.page-about .about-process__figure .media-frame__img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ---------- 数据条 ---------- */
.page-about .about-stats {
  list-style: none;
  margin: clamp(30px, 5vw, 54px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .about-stat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 16px 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(18, 52, 90, 0.75), rgba(7, 20, 38, 0.6));
  overflow: hidden;
}

.page-about .about-stat::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--aqua), rgba(23, 224, 192, 0));
}

.page-about .about-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 4.6vw, 1.75rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--aqua);
}

.page-about .about-stat__label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--paper);
}

.page-about .about-stat__hint {
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 起点与使命 ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-origin__card {
  padding: 22px 20px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(170deg, var(--about-panel), var(--about-panel-deep));
  transition: border-color var(--ease), transform var(--ease);
}

.page-about .about-origin__card:hover {
  border-color: var(--line-aqua);
  transform: translateY(-3px);
}

.page-about .about-origin__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--flame);
}

.page-about .about-origin__title {
  margin: 10px 0 8px;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .about-origin__text {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--about-text);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline__grid {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

.page-about .about-timeline__index {
  list-style: none;
  margin: 0;
  padding: 2px 2px 8px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-about .about-index-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: rgba(18, 52, 90, 0.45);
  color: rgba(247, 249, 252, 0.82);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--ease), background var(--ease), color var(--ease);
}

.page-about .about-index-link:hover,
.page-about .about-index-link:focus-visible {
  border-color: var(--line-aqua);
  background: rgba(23, 224, 192, 0.12);
  color: var(--paper);
}

.page-about .about-index-link__code {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--aqua);
}

.page-about .about-timeline__track {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 34px;
  display: grid;
  gap: 16px;
}

.page-about .about-timeline__track::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--aqua) 0%, rgba(23, 224, 192, 0.26) 48%, rgba(255, 107, 53, 0.66) 100%);
}

.page-about .about-stage {
  position: relative;
  padding: 20px 20px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--about-panel), var(--about-panel-deep));
  transition: border-color var(--ease), transform var(--ease);
}

.page-about .about-stage:hover {
  border-color: var(--line-aqua);
  transform: translateX(3px);
}

.page-about .about-stage::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 26px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--aqua);
  box-shadow: 0 0 0 4px rgba(23, 224, 192, 0.12);
}

.page-about .about-stage__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-about .about-stage__code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--flame);
}

.page-about .about-stage__title {
  margin: 0;
  font-size: clamp(1.08rem, 3.6vw, 1.4rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-about .about-stage__text {
  margin: 12px 0 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--about-text);
}

.page-about .about-stage__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .about-stage__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.88rem;
  line-height: 1.62;
  color: var(--about-text-soft);
}

.page-about .about-stage__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--aqua);
  opacity: 0.85;
}

/* ---------- 审核流程 ---------- */
.page-about .about-process__grid {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

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

.page-about .about-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.page-about .about-flow__node {
  position: relative;
  padding: 16px 16px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(18, 52, 90, 0.38);
  outline: none;
  transition: border-color var(--ease), transform var(--ease), background var(--ease);
}

.page-about .about-flow__node:hover,
.page-about .about-flow__node:focus-visible {
  border-color: var(--line-aqua);
  background: rgba(23, 224, 192, 0.1);
  transform: translateY(-3px);
}

.page-about .about-flow__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--aqua);
}

.page-about .about-flow__name {
  margin: 8px 0 6px;
  font-size: 1rem;
  font-weight: 800;
}

.page-about .about-flow__desc {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--about-text-soft);
  transition: color var(--ease);
}

.page-about .about-flow__node:hover .about-flow__desc,
.page-about .about-flow__node:focus-visible .about-flow__desc {
  color: var(--paper);
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-about .about-team__main {
  padding: 24px 22px 26px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line-aqua);
  background:
    radial-gradient(420px 220px at 92% 0%, rgba(23, 224, 192, 0.16), transparent 70%),
    linear-gradient(155deg, rgba(18, 52, 90, 0.82), rgba(7, 20, 38, 0.6));
}

.page-about .about-team__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--flame);
}

.page-about .about-team__title {
  margin: 12px 0 10px;
  font-size: clamp(1.2rem, 4vw, 1.55rem);
  font-weight: 800;
  line-height: 1.32;
}

.page-about .about-team__text {
  margin: 0 0 12px;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--about-text);
}

.page-about .about-team__facts {
  list-style: none;
  margin: 16px 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 10px;
}

.page-about .about-team__facts li {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--about-text-soft);
}

.page-about .about-team__facts .mono {
  display: inline-block;
  min-width: 4.6em;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--aqua);
}

.page-about .about-team__side {
  display: grid;
  gap: 10px;
}

.page-about .about-team__item {
  padding: 18px 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--about-panel-deep);
  transition: border-color var(--ease);
}

.page-about .about-team__item:hover {
  border-color: var(--line-aqua);
}

.page-about .about-team__item-title {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
}

.page-about .about-team__item-text {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.72;
  color: var(--about-text-soft);
}

.page-about .about-inline-link {
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 224, 192, 0.45);
}

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

/* ---------- 服务覆盖 ---------- */
.page-about .about-coverage__grid {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

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

.page-about .about-map {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 62% 42%, rgba(23, 224, 192, 0.14), transparent 62%),
    linear-gradient(160deg, rgba(18, 52, 90, 0.7), rgba(7, 20, 38, 0.72));
}

.page-about .about-coverage__caption {
  margin-top: 10px;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-region {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-about .about-region li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 15px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(18, 52, 90, 0.4);
  font-size: 0.87rem;
  color: var(--about-text);
}

.page-about .about-region__val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--aqua);
  text-align: right;
}

/* ---------- 合作与认可 ---------- */
.page-about .about-eco__grid {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-eco__card {
  padding: 22px 20px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(168deg, var(--about-panel), var(--about-panel-deep));
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.page-about .about-eco__card--wide {
  border-color: rgba(255, 107, 53, 0.32);
  background:
    radial-gradient(400px 200px at 96% 6%, rgba(255, 107, 53, 0.14), transparent 72%),
    linear-gradient(168deg, rgba(18, 52, 90, 0.78), rgba(7, 20, 38, 0.58));
}

.page-about .about-eco__tag {
  display: inline-block;
}

.page-about .about-eco__title {
  margin: 0;
  font-size: clamp(1.05rem, 3.6vw, 1.32rem);
  font-weight: 800;
  line-height: 1.34;
}

.page-about .about-eco__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--about-text);
  flex: 1 1 auto;
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  padding-bottom: clamp(48px, 8vw, 88px);
}

.page-about .about-cta__box {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 46px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line-aqua);
  background:
    radial-gradient(520px 240px at 88% 0%, rgba(23, 224, 192, 0.2), transparent 70%),
    linear-gradient(150deg, rgba(18, 52, 90, 0.9), rgba(7, 20, 38, 0.92));
}

.page-about .about-cta__title {
  margin: 0 0 12px;
  font-size: clamp(1.35rem, 5vw, 2rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-about .about-cta__text {
  margin: 0;
  max-width: 56ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--about-text);
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .about-stats {
    gap: 14px;
  }

  .page-about .about-origin__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }

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

  .page-about .about-process__grid {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    align-items: start;
    gap: 26px;
  }

  .page-about .about-process__figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 16px;
  }

  .page-about .about-coverage__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
    gap: 24px;
  }

  .page-about .about-eco__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

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

@media (min-width: 960px) {
  .page-about .about-timeline__grid {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-about .about-timeline__index {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding: 0;
  }

  .page-about .about-index-link {
    justify-content: flex-start;
    border-radius: var(--radius-md);
    padding: 11px 14px;
  }

  .page-about .about-stage {
    padding: 24px 26px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-origin__card,
  .page-about .about-stage,
  .page-about .about-flow__node,
  .page-about .about-index-link,
  .page-about .about-team__item {
    transition: none;
  }

  .page-about .about-origin__card:hover,
  .page-about .about-flow__node:hover,
  .page-about .about-flow__node:focus-visible {
    transform: none;
  }

  .page-about .about-stage:hover {
    transform: none;
  }
}
<<<END>>>