.page-about {
  --ab-node: 14px;
  --ab-track-x: 18px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -12% -20% auto auto;
  width: min(620px, 70vw);
  height: min(620px, 70vw);
  background: radial-gradient(circle at 60% 40%, rgba(53, 240, 208, .16), transparent 62%),
              radial-gradient(circle at 30% 70%, rgba(122, 92, 255, .14), transparent 58%);
  pointer-events: none;
  z-index: 0;
}
.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}
.page-about .about-hero__title {
  margin: 12px 0 20px;
  font-size: clamp(38px, 8.4vw, 92px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--warm);
}
.page-about .about-hero__copy .lede {
  max-width: 60ch;
  color: var(--muted);
}
.page-about .about-hero__stats {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}
.page-about .about-hero__stats > li {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num unit"
    "num cap";
  column-gap: 14px;
  align-items: baseline;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.page-about .about-hero__num {
  grid-area: num;
  font-size: clamp(40px, 7vw, 60px);
  line-height: 1;
  font-weight: 700;
  color: var(--cyan);
}
.page-about .about-hero__num--orange { color: var(--orange); }
.page-about .about-hero__num--violet { color: var(--violet); }
.page-about .about-hero__unit {
  grid-area: unit;
  font-size: var(--step1);
  font-weight: 700;
  color: var(--warm);
}
.page-about .about-hero__cap {
  grid-area: cap;
  font-size: var(--step-1);
  line-height: 1.6;
  color: var(--muted);
}
.page-about .about-hero__aside {
  padding: clamp(20px, 3vw, 28px);
}
.page-about .about-facts {
  margin: 14px 0 20px;
  display: grid;
  gap: 0;
}
.page-about .about-facts__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(42, 59, 92, .9);
}
.page-about .about-facts__row:last-child { border-bottom: 0; }
.page-about .about-facts dt {
  font-size: var(--step-1);
  color: var(--muted);
  letter-spacing: .06em;
}
.page-about .about-facts dd {
  margin: 0;
  font-size: var(--step0);
  color: var(--warm);
  text-align: right;
}
.page-about .about-facts dd .num { color: var(--cyan); font-size: 18px; }
.page-about .about-hero__link { width: 100%; justify-content: center; }

/* ---------- 起点 ---------- */
.page-about .about-origin__body p {
  margin: 0 0 16px;
  color: var(--muted);
  max-width: 66ch;
}
.page-about .about-origin__title {
  margin: 10px 0 20px;
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--warm);
}
.page-about .about-origin__figure {
  margin: 28px 0 0;
  border: 1px solid var(--line);
}
.page-about .about-origin__grid { display: grid; gap: 8px; }

/* ---------- 时间线 ---------- */
.page-about .about-track__head { margin-bottom: clamp(30px, 5vw, 52px); }
.page-about .about-track__title {
  margin: 10px 0 14px;
  font-size: clamp(28px, 4.6vw, 46px);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--warm);
}
.page-about .about-track__lede { color: var(--muted); max-width: 58ch; }

.page-about .about-track {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}
.page-about .about-track::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: var(--ab-track-x);
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--violet) 48%, var(--orange));
  opacity: .55;
}
.page-about .about-track__item {
  position: relative;
  padding-left: calc(var(--ab-track-x) + 26px);
}
.page-about .about-track__dot {
  position: absolute;
  left: calc(var(--ab-track-x) - 5px);
  top: 6px;
  width: var(--ab-node);
  height: var(--ab-node);
  border-radius: 50%;
  background: var(--void);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 240, 208, .12);
}
.page-about .about-track__dot--expand { border-color: var(--cyan); }
.page-about .about-track__dot--tech {
  border-color: var(--violet);
  box-shadow: 0 0 0 4px rgba(122, 92, 255, .16);
}
.page-about .about-track__dot--mobile { border-color: var(--warm); box-shadow: none; }
.page-about .about-track__dot--now {
  border-color: var(--orange);
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 122, 47, .2);
}
.page-about .about-track__index {
  margin: 0 0 6px;
  font-size: var(--step-1);
  letter-spacing: .14em;
  color: var(--cyan);
}
.page-about .about-track__name {
  margin: 0 0 10px;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 800;
  color: var(--warm);
}
.page-about .about-track__body > p {
  margin: 0 0 12px;
  color: var(--muted);
  max-width: 62ch;
}
.page-about .about-track__more {
  border-left: 2px solid var(--line);
  padding-left: 14px;
}
.page-about .about-track__more summary {
  cursor: pointer;
  font-size: var(--step-1);
  letter-spacing: .08em;
  color: var(--cyan);
  list-style: none;
}
.page-about .about-track__more summary::-webkit-details-marker { display: none; }
.page-about .about-track__more summary::after {
  content: " ＋";
  font-size: var(--step0);
}
.page-about .about-track__more[open] summary::after { content: " －"; }
.page-about .about-track__more p {
  margin: 10px 0 0;
  font-size: var(--step0);
  line-height: 1.75;
  color: var(--muted);
  max-width: 58ch;
}

/* ---------- 团队 ---------- */
.page-about .about-team__figure {
  margin: 0 0 clamp(28px, 5vw, 48px);
  border: 1px solid var(--line);
}
.page-about .about-team__title {
  margin: 10px 0 14px;
  font-size: clamp(26px, 4.4vw, 44px);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--warm);
}
.page-about .about-team__lede { color: var(--muted); max-width: 58ch; }
.page-about .about-roles {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-about .about-role {
  position: relative;
  padding: 20px 20px 22px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(14, 26, 51, .95), rgba(6, 11, 24, .95));
  border: 1px solid var(--line);
  border-top-width: 3px;
  transition: transform .28s var(--ease), border-color .28s var(--ease);
}
.page-about .about-role:hover { transform: translateY(-3px); }
.page-about .about-role--annotate { border-top-color: var(--cyan); }
.page-about .about-role--verify { border-top-color: var(--orange); }
.page-about .about-role--edit { border-top-color: var(--warm); }
.page-about .about-role--visual { border-top-color: var(--violet); }
.page-about .about-role__index {
  margin: 0 0 10px;
  font-size: var(--step-1);
  letter-spacing: .16em;
  color: var(--muted);
}
.page-about .about-role__name {
  margin: 0 0 10px;
  font-size: var(--step2);
  font-weight: 800;
  color: var(--warm);
}
.page-about .about-role__desc {
  margin: 0 0 14px;
  font-size: var(--step0);
  line-height: 1.78;
  color: var(--muted);
}
.page-about .about-role__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(42, 59, 92, .9);
  font-size: var(--step-1);
  letter-spacing: .06em;
  color: var(--cyan);
}

/* ---------- 发布链路 ---------- */
.page-about .about-flow__head { margin-bottom: clamp(26px, 4vw, 40px); }
.page-about .about-flow__title {
  margin: 10px 0 14px;
  font-size: clamp(26px, 4.4vw, 44px);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--warm);
}
.page-about .about-flow__lede { color: var(--muted); max-width: 56ch; }
.page-about .about-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: flow;
}
.page-about .about-flow__step {
  position: relative;
  padding: 20px 18px;
  border-radius: var(--radius-sm);
  background: rgba(14, 26, 51, .62);
  border: 1px solid var(--line);
}
.page-about .about-flow__node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: rgba(53, 240, 208, .1);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-size: 15px;
}
.page-about .about-flow__step:nth-child(3) .about-flow__node {
  border-color: var(--violet);
  color: var(--violet);
  background: rgba(122, 92, 255, .12);
}
.page-about .about-flow__step:nth-child(4) .about-flow__node {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 122, 47, .12);
}
.page-about .about-flow__step-name {
  margin: 0 0 8px;
  font-size: var(--step1);
  font-weight: 800;
  color: var(--warm);
}
.page-about .about-flow__step p {
  margin: 0;
  font-size: var(--step0);
  line-height: 1.75;
  color: var(--muted);
}
.page-about .about-flow__bar {
  margin: clamp(22px, 3vw, 32px) 0 12px;
  height: 4px;
  border-radius: 2px;
  background: rgba(42, 59, 92, .7);
  overflow: hidden;
}
.page-about .about-flow__bar-fill {
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 60%, var(--orange));
}
.page-about .about-flow__note {
  margin: 0;
  font-size: var(--step-1);
  letter-spacing: .05em;
  color: var(--muted);
}
.page-about .about-flow__note .num {
  color: var(--orange);
  font-size: 16px;
}

/* ---------- 质量把关 ---------- */
.page-about .about-check__grid { display: grid; gap: clamp(26px, 4vw, 48px); }
.page-about .about-check__title {
  margin: 10px 0 16px;
  font-size: clamp(26px, 4.4vw, 44px);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--warm);
}
.page-about .about-check__body > p {
  margin: 0 0 18px;
  color: var(--muted);
  max-width: 62ch;
}
.page-about .about-check__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-about .about-check__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 16px 16px 16px 14px;
  border-left: 3px solid var(--teal);
  background: rgba(11, 59, 58, .28);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.page-about .about-check__item:nth-child(2) { border-left-color: var(--cyan); }
.page-about .about-check__item:nth-child(3) { border-left-color: var(--orange); }
.page-about .about-check__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  border: 1px solid var(--line);
  color: var(--warm);
  font-size: 14px;
}
.page-about .about-check__item-title {
  margin: 0 0 6px;
  font-size: var(--step1);
  font-weight: 800;
  color: var(--warm);
}
.page-about .about-check__item p {
  margin: 0;
  font-size: var(--step0);
  line-height: 1.75;
  color: var(--muted);
}
.page-about .about-check__figure {
  margin: 0;
  border: 1px solid var(--line);
}

/* ---------- 城市标签与编号 ---------- */
.page-about .about-system__head { margin-bottom: clamp(24px, 4vw, 40px); }
.page-about .about-system__title {
  margin: 10px 0 14px;
  font-size: clamp(26px, 4.4vw, 44px);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--warm);
}
.page-about .about-system__lede { color: var(--muted); max-width: 56ch; }
.page-about .about-system__grid { gap: 16px; }
.page-about .about-system__card { padding: 22px 20px 24px; }
.page-about .about-system__card .card__title {
  margin: 8px 0 14px;
  font-size: var(--step2);
  font-weight: 800;
  color: var(--warm);
}
.page-about .about-system__card p {
  margin: 0 0 16px;
  font-size: var(--step0);
  line-height: 1.78;
  color: var(--muted);
}
.page-about .about-system__tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-about .about-system__hint {
  padding-top: 14px;
  border-top: 1px dashed rgba(42, 59, 92, .9);
  font-size: var(--step-1);
  color: var(--cyan) !important;
  letter-spacing: .04em;
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners__head { margin-bottom: clamp(24px, 4vw, 40px); }
.page-about .about-partners__title {
  margin: 10px 0 14px;
  font-size: clamp(26px, 4.4vw, 44px);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--warm);
}
.page-about .about-partners__lede { color: var(--muted); max-width: 60ch; }
.page-about .about-honors {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-about .about-honor__box {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, rgba(14, 26, 51, .9), rgba(6, 11, 24, .9));
  overflow: hidden;
}
.page-about .about-honor__summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 16px 18px;
  position: relative;
}
.page-about .about-honor__summary::-webkit-details-marker { display: none; }
.page-about .about-honor__summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
}
.page-about .about-honor__label {
  font-size: var(--step1);
  font-weight: 800;
  color: var(--warm);
}
.page-about .about-honor__span {
  font-size: var(--step-1);
  letter-spacing: .1em;
  color: var(--cyan);
}
.page-about .about-honor__box[open] .about-honor__summary::before { background: var(--orange); }
.page-about .about-honor__panel {
  padding: 4px 18px 18px 21px;
  border-top: 1px dashed rgba(42, 59, 92, .9);
}
.page-about .about-honor__panel p {
  margin: 12px 0 0;
  font-size: var(--step0);
  line-height: 1.78;
  color: var(--muted);
  max-width: 66ch;
}
.page-about .about-partners__cta-line {
  margin: clamp(24px, 4vw, 36px) 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-size: var(--step0);
  color: var(--muted);
}

/* ---------- 未来计划 ---------- */
.page-about .about-next__head { margin-bottom: clamp(22px, 3vw, 34px); }
.page-about .about-next__title {
  margin: 10px 0 0;
  font-size: clamp(26px, 4.4vw, 44px);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--warm);
}
.page-about .about-next__row {
  display: grid;
  gap: 16px;
}
.page-about .about-next__card {
  padding: 24px 20px 26px;
}
.page-about .about-next__card .card__meta {
  color: var(--orange);
  letter-spacing: .16em;
}
.page-about .about-next__card .card__title {
  margin: 10px 0 14px;
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 800;
  color: var(--warm);
  line-height: 1.4;
}
.page-about .about-next__card p {
  margin: 0 0 14px;
  font-size: var(--step0);
  line-height: 1.78;
  color: var(--muted);
}
.page-about .about-next__note {
  padding-top: 12px;
  border-top: 1px dashed rgba(42, 59, 92, .9);
  font-size: var(--step-1);
  color: var(--cyan) !important;
}
.page-about .about-next__links {
  margin-top: clamp(24px, 4vw, 36px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
  .page-about .about-hero__stats > li {
    grid-template-columns: 1fr;
    grid-template-areas:
      "num"
      "unit"
      "cap";
    row-gap: 4px;
  }
  .page-about .about-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-flow__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-next__row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-system__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-about { --ab-track-x: 28px; }
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(300px, .95fr);
    gap: clamp(36px, 5vw, 72px);
  }
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }
  .page-about .about-origin__figure { margin-top: 46px; }
  .page-about .about-roles {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-flow__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
  .page-about .about-flow__step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 41px;
    right: -12px;
    width: 14px;
    height: 1px;
    background: var(--line);
  }
  .page-about .about-check__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr);
    align-items: start;
  }
  .page-about .about-check__figure {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
  }
  .page-about .about-track__item {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }
  .page-about .about-track__body {
    max-width: 76ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-role { transition: none; }
  .page-about .about-role:hover { transform: none; }
}
</｜｜DSML｜｜ parameter>
</invoke>
</result>