.page-about {
  background: var(--c-ink-900);
  color: var(--c-text);
  padding-bottom: 40px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  border-bottom: var(--frame-w) solid var(--c-line);
  background:
    radial-gradient(90% 70% at 88% 4%, rgba(34, 224, 255, .18), transparent 62%),
    radial-gradient(80% 60% at 4% 98%, rgba(255, 122, 26, .14), transparent 60%),
    linear-gradient(180deg, var(--c-ink-900) 0%, var(--c-band) 58%, var(--c-ink-900) 100%);
}

.page-about .about-hero__frame {
  padding: 22px var(--pad-x) 38px;
}

.page-about .about-hero__crumb {
  margin-bottom: 22px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 24px;
}

.page-about .about-hero__eyebrow {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-about .about-hero__title {
  margin: 12px 0 0;
  font-size: clamp(30px, 6.4vw, 46px);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--c-white);
}

.page-about .about-hero__lead {
  margin: 16px 0 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-text);
}

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

.page-about .about-hero__claim {
  border: var(--frame-w) solid var(--c-cyan);
  background: linear-gradient(158deg, rgba(34, 224, 255, .14) 0%, rgba(12, 21, 48, .94) 58%);
  box-shadow: var(--shadow-hard);
  padding: 20px 18px 22px;
}

.page-about .about-hero__claim-label {
  display: block;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-about .about-hero__claim-text {
  margin: 10px 0 0;
  font-size: clamp(24px, 5.2vw, 34px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--c-white);
}

.page-about .about-hero__claim-note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-text);
}

/* ---------- 主体两栏 ---------- */
.page-about .about-body {
  display: grid;
  gap: 22px;
  padding: 26px var(--pad-x) 0;
  max-width: var(--layout-max);
  margin-inline: auto;
}

/* ---------- 章节索引 ---------- */
.page-about .about-rail .rail__track {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-rail .rail__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-about .about-rail .rail__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--c-line);
  background: var(--c-ink-800);
  color: var(--c-muted);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .18s ease, color .18s ease, background-color .18s ease;
}

.page-about .about-rail .about-rail__num {
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-cyan);
}

.page-about .about-rail .rail__link[aria-current="true"] {
  border-color: var(--c-cyan);
  background: linear-gradient(120deg, rgba(34, 224, 255, .2), rgba(34, 224, 255, .04));
  color: var(--c-white);
}

.page-about .about-rail .rail__link:hover {
  border-color: var(--c-orange);
  color: var(--c-white);
}

/* ---------- 画板堆叠 ---------- */
.page-about .about-panels {
  display: grid;
  gap: 24px;
  min-width: 0;
}

.page-about .about-panel {
  position: relative;
  border: var(--frame-w) solid var(--c-line);
  background: var(--c-ink-800);
  box-shadow: var(--shadow-hard);
}

.page-about .about-panel + .about-panel::before {
  content: "";
  position: absolute;
  left: 26px;
  top: -24px;
  width: 2px;
  height: 24px;
  background: var(--c-cyan);
  opacity: .45;
}

.page-about .about-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--c-line);
  background: linear-gradient(90deg, var(--c-ink-700) 0%, var(--c-ink-800) 100%);
}

.page-about .about-panel__index {
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.page-about .about-panel__label {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.page-about .about-panel__body {
  padding: 20px 16px 24px;
}

.page-about .about-panel__title {
  margin: 0;
  font-size: clamp(20px, 4.2vw, 28px);
  line-height: 1.34;
  letter-spacing: -.01em;
  color: var(--c-white);
}

.page-about .about-panel__text {
  margin: 14px 0 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.76;
  color: var(--c-text);
}

/* ---------- 卡片组 ---------- */
.page-about .about-cards {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-cards__item {
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-cyan);
  background: var(--c-ink-700);
  padding: 15px 15px 17px;
}

.page-about .about-cards__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 17px;
  line-height: 1.4;
  color: var(--c-white);
}

.page-about .about-cards__title::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 16px;
  background: var(--c-orange);
}

.page-about .about-cards__text {
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--c-text);
}

/* ---------- 团队 ---------- */
.page-about .about-team-grid {
  display: grid;
  gap: 20px;
  margin-top: 22px;
}

.page-about .about-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-roles__item {
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--c-line);
}

.page-about .about-roles__item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .about-roles__name {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-cyan);
}

.page-about .about-roles__text {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--c-text);
}

.page-about .about-note {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.72;
}

/* ---------- 视觉容器 ---------- */
.page-about .about-media {
  margin: 22px 0 0;
}

.page-about .about-media--team {
  margin-top: 0;
}

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

/* ---------- 指标 ---------- */
.page-about .about-metrics {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-about .about-metrics__item {
  background: var(--c-ink-800);
  padding: 14px 12px 16px;
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-about .about-metrics__value {
  font-family: var(--f-mono);
  font-size: clamp(24px, 5.6vw, 38px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--c-white);
  font-variant-numeric: tabular-nums;
}

.page-about .about-metrics__value--cyan {
  color: var(--c-cyan);
}

.page-about .about-metrics__value--orange {
  color: var(--c-orange);
}

.page-about .about-metrics__label {
  font-size: 12px;
  line-height: 1.55;
  letter-spacing: .03em;
  color: var(--c-muted);
}

/* ---------- 版本演进 ---------- */
.page-about .about-versions {
  list-style: none;
  margin: 22px 0 0;
  padding: 0 0 8px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(250px, 84%);
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-versions > li {
  scroll-snap-align: start;
}

.page-about .about-version {
  display: grid;
  gap: 8px;
  align-content: start;
  border: 1px solid var(--c-line);
  background: var(--c-ink-700);
  padding: 16px 15px 18px;
}

.page-about .about-version__code {
  font-family: var(--f-mono);
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--c-orange);
}

.page-about .about-version__title {
  margin: 0;
  font-size: 16px;
  line-height: 1.45;
  color: var(--c-white);
}

.page-about .about-version__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--c-text);
}

/* ---------- 生态 ---------- */
.page-about .about-sources {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-sources li {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-text);
  border: 1px solid var(--c-line);
  background: var(--c-ink-700);
  padding: 8px 12px;
}

.page-about .about-subtitle {
  margin: 26px 0 0;
  font-size: 16px;
  line-height: 1.5;
  color: var(--c-white);
}

.page-about .about-industries {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-industries__item {
  border-left: 3px solid var(--c-orange-soft);
  padding: 2px 0 2px 12px;
}

.page-about .about-industries__name {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-white);
}

.page-about .about-industries__text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-text);
}

.page-about .about-media--eco {
  margin-top: 24px;
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  margin-top: 22px;
  display: grid;
  gap: 14px;
}

.page-about .about-next__card {
  display: grid;
  gap: 12px;
  align-content: start;
  border: var(--frame-w) solid var(--c-line);
  background: linear-gradient(152deg, var(--c-ink-700) 0%, var(--c-ink-800) 100%);
  padding: 18px 16px 20px;
}

.page-about .about-next__card--accent {
  border-color: var(--c-orange);
  background: linear-gradient(152deg, rgba(255, 122, 26, .14) 0%, var(--c-ink-800) 62%);
}

.page-about .about-next__tag {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-about .about-next__card--accent .about-next__tag {
  color: var(--c-orange-soft);
}

.page-about .about-next__title {
  margin: 0;
  font-size: 19px;
  line-height: 1.4;
  color: var(--c-white);
}

.page-about .about-next__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--c-text);
}

.page-about .about-next__card .btn {
  justify-self: start;
}

.page-about .about-next__help {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--c-muted);
}

.page-about .about-next__help a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-next__help a:hover {
  color: var(--c-orange-soft);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 700px) {
  .page-about .about-panel__body {
    padding: 26px 28px 30px;
  }

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

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

  .page-about .about-metrics__item {
    padding: 18px 14px 20px;
  }

  .page-about .about-next {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

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

@media (min-width: 760px) {
  .page-about .about-industries {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__frame {
    padding: 26px var(--pad-x) 48px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: end;
  }

  .page-about .about-hero__claim {
    padding: 24px 22px 26px;
  }

  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-about .about-body {
    grid-template-columns: 192px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
    padding-top: 36px;
  }

  .page-about .about-rail {
    position: sticky;
    top: 92px;
  }

  .page-about .about-rail .rail__track {
    flex-direction: column;
    gap: 6px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-about .about-rail .rail__link {
    white-space: normal;
    padding: 9px 11px;
  }

  .page-about .about-versions {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    overflow: visible;
    padding-bottom: 0;
  }
}

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