.page-about {
  --about-gap: clamp(1.5rem, 4vw, 3.5rem);
  --about-rail-w: 280px;
  background: var(--ink);
  color: var(--white);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: calc(var(--bar-h) + 3.5rem) 0 3rem;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 96px 96px;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: -28%;
  right: -18%;
  width: min(600px, 78vw);
  height: min(600px, 78vw);
  background: radial-gradient(circle, rgba(47, 227, 200, 0.15), transparent 68%);
  pointer-events: none;
}

.page-about .about-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-about .breadcrumb {
  margin-bottom: 1.75rem;
}

.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-about .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--slate);
}

.page-about .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
}

.page-about .breadcrumb a:hover {
  color: var(--mint);
}

.page-about .about-hero h1 {
  margin: 0 0 1.25rem;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 7.5vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: 0.01em;
}

.page-about .about-hero__lede {
  max-width: 40ch;
  margin: 0 0 2.5rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--gray);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-hero__stat {
  background: var(--char);
  padding: 1.15rem 1rem 1.25rem;
  border-left: 2px solid rgba(47, 227, 200, 0.4);
}

.page-about .about-hero__stat dt {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 0.55rem;
}

.page-about .about-hero__stat dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  color: var(--white);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
}

.page-about .about-hero__stat .num {
  color: var(--cyan);
}

.page-about .about-hero__unit {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--gray);
}

/* ---------- 定位 ---------- */
.page-about .about-focus .grid--rail {
  gap: var(--about-gap);
}

.page-about .about-focus__main .section-title {
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
  max-width: 24ch;
  font-size: clamp(1.6rem, 5.4vw, 2.4rem);
  line-height: 1.22;
}

.page-about .about-focus__p {
  max-width: 36ch;
  margin: 0 0 1.15rem;
  font-size: 1rem;
  line-height: 1.9;
  color: rgba(244, 248, 247, 0.82);
}

.page-about .about-focus__p a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 200, 0.45);
}

.page-about .about-focus__p a:hover {
  color: var(--mint);
}

.page-about .about-focus__rail {
  padding-top: 1.5rem;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  background: linear-gradient(180deg, rgba(28, 58, 51, 0.35), transparent 70%);
}

.page-about .about-team__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: start;
}

.page-about .about-team__media {
  border: 1px solid var(--line);
}

.page-about .about-team__media img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-about .about-team__tabs .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.page-about .about-team__tabs .tab {
  flex: 1 1 auto;
  min-width: 8.5rem;
  padding: 0.7rem 0.9rem;
  background: var(--deep);
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--gray);
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 120ms var(--ease), color 120ms var(--ease), border-color 120ms var(--ease);
}

.page-about .about-team__tabs .tab[aria-selected="true"] {
  background: var(--char);
  border-color: var(--cyan);
  color: var(--white);
}

.page-about .about-team__tabs .tab:hover {
  color: var(--mint);
}

.page-about .about-team__tabs .tab-panel {
  background: var(--char);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
}

.page-about .about-team__tabs .tab-panel[hidden] {
  display: none;
}

.page-about .about-team__tabs .tab-panel h3 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--white);
}

.page-about .about-team__tabs .tab-panel p {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(244, 248, 247, 0.8);
}

.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-team__list li {
  position: relative;
  padding: 0.75rem 0 0.75rem 1.15rem;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--gray);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-team__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.35rem;
  width: 8px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 版本线 ---------- */
.page-about .about-versions__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: start;
}

.page-about .timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0.75rem;
  bottom: 1.5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--line), rgba(47, 227, 200, 0.5) 55%, var(--line));
}

.page-about .timeline__node {
  position: relative;
  padding: 0 0 2.25rem 2.25rem;
}

.page-about .timeline__dot {
  position: absolute;
  left: 0;
  top: 0.35rem;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--mint);
}

.page-about .timeline__node--now .timeline__dot {
  background: var(--orange);
  border-color: var(--orange);
  box-shadow: 0 0 0 6px rgba(255, 122, 41, 0.16);
}

.page-about .timeline__ver {
  margin: 0 0 0.25rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-about .timeline__node--now .timeline__ver {
  color: var(--orange);
}

.page-about .timeline__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--white);
}

.page-about .timeline__body {
  margin: 0;
  max-width: 46ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(244, 248, 247, 0.78);
}

.page-about .timeline__link {
  margin: 0.9rem 0 0;
}

.page-about .timeline__link a {
  display: inline-block;
  font-size: 0.86rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 200, 0.45);
}

.page-about .timeline__link a:hover {
  color: var(--mint);
}

.page-about .about-versions__media {
  border: 1px solid var(--line);
}

.page-about .about-versions__media img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.08);
}

/* ---------- 覆盖范围 ---------- */
.page-about .about-scope {
  background: linear-gradient(180deg, rgba(17, 21, 24, 0.9), rgba(11, 30, 26, 0.6));
}

.page-about .about-scope__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-scope__item {
  background: var(--char);
  padding: 1.5rem 1.25rem 1.6rem;
}

.page-about .about-scope__num {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.4rem, 9vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-scope__label {
  margin: 0.5rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-about .about-scope__desc {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--gray);
}

.page-about .about-scope__strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

/* ---------- 纠错 ---------- */
.page-about .about-fix .grid--rail {
  gap: var(--about-gap);
}

.page-about .about-fix__main .section-title {
  margin-top: 0.5rem;
  margin-bottom: 1rem;
  max-width: 18ch;
  font-size: clamp(1.6rem, 5.4vw, 2.4rem);
  line-height: 1.22;
}

.page-about .about-fix__p {
  max-width: 38ch;
  margin: 0 0 1.75rem;
  font-size: 0.98rem;
  line-height: 1.9;
  color: rgba(244, 248, 247, 0.8);
}

.page-about .about-fix__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: fixstep;
}

.page-about .about-fix__steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-fix__steps li:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-fix__idx {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.06em;
  line-height: 1.6;
}

.page-about .about-fix__steps h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-fix__steps p {
  margin: 0;
  max-width: 44ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--gray);
}

.page-about .about-fix__cta {
  margin: 1.75rem 0 0;
}

.page-about .about-fix__rail {
  padding-top: 1.5rem;
}

/* ---------- 合作 ---------- */
.page-about .about-partners__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: center;
}

.page-about .about-partners__text .section-title {
  margin-top: 0.5rem;
  margin-bottom: 1.25rem;
  max-width: 16ch;
  font-size: clamp(1.7rem, 5.8vw, 2.5rem);
  line-height: 1.2;
}

.page-about .about-partners__p {
  max-width: 42ch;
  margin: 0 0 1.1rem;
  font-size: 0.96rem;
  line-height: 1.9;
  color: rgba(244, 248, 247, 0.82);
}

.page-about .about-partners__p a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 200, 0.45);
}

.page-about .about-partners__p a:hover {
  color: var(--mint);
}

.page-about .about-partners__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-about .about-partners__actions .btn {
  display: inline-block;
  padding: 0.8rem 1.4rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  text-decoration: none;
  transition: transform 140ms var(--ease), background 140ms var(--ease), color 140ms var(--ease);
}

.page-about .about-partners__actions .btn--primary {
  background: var(--orange);
  color: var(--ink-on-accent);
  font-weight: 700;
}

.page-about .about-partners__actions .btn--ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--white);
}

.page-about .about-partners__actions .btn:hover {
  transform: translateY(-2px);
}

.page-about .about-partners__media {
  border: 1px solid var(--line);
}

.page-about .about-partners__media img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.06) brightness(0.92);
}

/* ---------- 旁注 ---------- */
.page-about .aside-note {
  margin: 0;
  padding: 0.9rem 1rem;
  background: rgba(28, 58, 51, 0.5);
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--gray);
}

.page-about .media-frame {
  margin: 0;
  background: var(--deep);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .media-frame__cap {
  padding: 0.75rem 1rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--gray);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 动效 ---------- */
.page-about [data-reveal] {
  opacity: 1;
  transform: translateY(8px);
  transition: opacity 240ms var(--ease), transform 240ms var(--ease);
}

.page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    transform: none;
    transition: opacity 240ms var(--ease);
  }
  .page-about .about-partners__actions .btn:hover {
    transform: none;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .about-team__tabs .tab {
    flex: 0 1 auto;
  }

  .page-about .about-fix .grid--rail,
  .page-about .about-focus .grid--rail {
    grid-template-columns: minmax(0, 1fr) var(--about-rail-w);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: calc(var(--bar-h) + 5.5rem) 0 4.5rem;
  }

  .page-about .about-hero__lede {
    font-size: 1.08rem;
  }

  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
  }

  .page-about .about-versions__layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 3.5rem;
  }

  .page-about .about-versions__media {
    position: sticky;
    top: calc(var(--bar-h) + 2rem);
  }

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

  .page-about .about-partners__layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 3.5rem;
  }

  .page-about .about-fix .grid--rail {
    grid-template-columns: minmax(0, 1fr) 320px;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>