.page-about {
  --about-gap: clamp(18px, 2.6vw, 34px);
  --about-track-line: rgba(140, 163, 191, .22);
  display: block;
  background: var(--c-deep);
  color: var(--c-ice);
}

.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: linear-gradient(152deg, var(--c-stand) 0%, var(--c-deep) 48%, #08203c 100%);
  border-bottom: 1px solid var(--c-line);
}

.page-about .about-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(6, 20, 39, .58) 0%, rgba(6, 20, 39, .88) 64%, var(--c-deep) 100%),
    radial-gradient(120% 80% at 88% 8%, rgba(77, 240, 140, .14), transparent 62%);
}

.page-about .about-hero__inner {
  padding-top: clamp(30px, 5vw, 58px);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-about .about-hero__tag {
  color: var(--c-neon-soft);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  color: #fff;
  max-width: 22ch;
}

.page-about .about-hero__lead {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.15vw, 1.12rem);
  line-height: 1.75;
  color: var(--c-ice);
}

.page-about .about-hero__stats {
  margin-top: clamp(28px, 4.4vw, 48px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 14px 16px 16px;
  background: rgba(11, 31, 56, .78);
}

.page-about .about-stat__num {
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
  line-height: 1;
  color: var(--c-amber);
  letter-spacing: -.01em;
}

.page-about .about-stat__label {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-mist);
}

/* ---------- 起点 ---------- */
.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

.page-about .about-origin__head .display-2 {
  margin: 12px 0 0;
  color: #fff;
}

.page-about .about-origin__body p {
  margin: 0 0 1.1em;
  color: var(--c-ice);
}

.page-about .about-origin__mark {
  margin-top: 1.6em !important;
  padding-left: 16px;
  border-left: 2px solid var(--c-neon);
  color: var(--c-neon-soft) !important;
  font-size: .98rem;
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

.page-about .about-team__copy .display-2 {
  margin: 12px 0 0;
  color: #fff;
}

.page-about .about-team__lead {
  margin-top: clamp(16px, 2.4vw, 24px);
  color: var(--c-ice);
}

.page-about .about-team__fig {
  margin: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: rgba(11, 31, 56, .5);
}

.page-about .about-roles {
  list-style: none;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0;
  border-top: 1px solid var(--c-line);
}

.page-about .about-role {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 2px 20px;
  border-bottom: 1px solid var(--c-line);
}

.page-about .about-role__no {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-pulse);
  padding-top: 5px;
}

.page-about .about-role__name {
  margin: 0;
  font-family: var(--ff-display);
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
  font-weight: 500;
  letter-spacing: .01em;
  color: #fff;
}

.page-about .about-role__desc {
  margin: 8px 0 0;
  font-size: .96rem;
  line-height: 1.72;
  color: var(--c-mist);
  max-width: 44ch;
}

/* ---------- 联赛覆盖 ---------- */
.page-about .about-leagues__head .display-2 {
  margin: 12px 0 0;
  color: #fff;
}

.page-about .about-leagues__intro {
  margin-top: clamp(16px, 2.4vw, 24px);
  color: var(--c-ice);
}

.page-about .about-leagues__list {
  list-style: none;
  margin: clamp(30px, 4.6vw, 52px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-league {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 18px 22px;
  background: linear-gradient(168deg, rgba(20, 54, 94, .5), rgba(11, 31, 56, .72));
  transition: background var(--t-mid) var(--ease);
}

.page-about .about-league:hover {
  background: linear-gradient(168deg, rgba(20, 54, 94, .78), rgba(11, 31, 56, .82));
}

.page-about .about-league__no {
  font-size: 13px;
  color: var(--c-neon);
  padding-top: 4px;
}

.page-about .about-league__name {
  margin: 0;
  font-family: var(--ff-display);
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  font-weight: 500;
  color: #fff;
}

.page-about .about-league__desc {
  margin: 8px 0 0;
  font-size: .96rem;
  line-height: 1.72;
  color: var(--c-mist);
  max-width: 52ch;
}

.page-about .about-league__meta {
  grid-column: 2;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-amber);
  margin-top: 12px;
}

/* ---------- 版本演进 ---------- */
.page-about .about-versions__head .display-2 {
  margin: 12px 0 0;
  color: #fff;
}

.page-about .about-versions__intro {
  margin-top: clamp(16px, 2.4vw, 24px);
  color: var(--c-ice);
}

.page-about .about-versions__fig {
  margin: clamp(28px, 4vw, 42px) 0 0;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: rgba(11, 31, 56, .45);
}

.page-about .about-track {
  margin-top: clamp(26px, 3.6vw, 40px);
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scroll-padding-left: 2px;
  padding: 4px 2px 18px;
  border-bottom: 1px solid var(--about-track-line);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--c-rail) transparent;
}

.page-about .about-track::-webkit-scrollbar {
  height: 6px;
}

.page-about .about-track::-webkit-scrollbar-track {
  background: rgba(140, 163, 191, .12);
  border-radius: 999px;
}

.page-about .about-track::-webkit-scrollbar-thumb {
  background: var(--c-rail);
  border-radius: 999px;
}

.page-about .about-v {
  flex: 0 0 clamp(180px, 44vw, 218px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 16px 16px 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: linear-gradient(172deg, rgba(20, 54, 94, .5), rgba(11, 31, 56, .55));
  transition: border-color var(--t-mid) var(--ease), transform var(--t-mid) var(--ease);
}

.page-about .about-v:hover,
.page-about .about-v:focus-within {
  border-color: var(--c-line-neon);
  transform: translateY(-3px);
}

.page-about .about-v__no {
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  line-height: 1;
  color: var(--c-rail);
  letter-spacing: -.02em;
  transition: color var(--t-mid) var(--ease);
}

.page-about .about-v:hover .about-v__no {
  color: var(--c-neon);
}

.page-about .about-v__name {
  margin: 0;
  font-family: var(--ff-display);
  font-size: 1rem;
  font-weight: 500;
  color: #fff;
  letter-spacing: .01em;
}

.page-about .about-v__desc {
  margin: 0;
  font-size: .875rem;
  line-height: 1.68;
  color: var(--c-mist);
}

.page-about .about-v--now {
  border-color: rgba(77, 240, 140, .55);
  background: linear-gradient(172deg, rgba(77, 240, 140, .14), rgba(11, 31, 56, .68));
}

.page-about .about-v--now .about-v__no {
  color: var(--c-neon);
}

.page-about .about-v--now .about-v__name {
  color: var(--c-neon-soft);
}

.page-about .about-track__hint {
  margin: 12px 0 0;
  color: var(--c-mist);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

.page-about .about-partners__copy .display-2 {
  margin: 12px 0 0;
  color: #fff;
}

.page-about .about-partners__copy .prose {
  margin-top: clamp(16px, 2.4vw, 24px);
  color: var(--c-ice);
}

.page-about .about-partners__note {
  color: var(--c-neon-soft) !important;
}

.page-about .about-partners__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-partner {
  padding: 18px 18px 20px;
  background: rgba(11, 31, 56, .72);
  outline: none;
  transition: background var(--t-mid) var(--ease);
}

.page-about .about-partner:hover,
.page-about .about-partner:focus-visible {
  background: rgba(20, 54, 94, .78);
}

.page-about .about-partner:focus-visible {
  box-shadow: inset 0 0 0 2px var(--c-neon);
}

.page-about .about-partner__name {
  margin: 0;
  font-family: var(--ff-display);
  font-size: 1.06rem;
  font-weight: 500;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-about .about-partner__name::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--c-neon);
  flex: none;
  transition: width var(--t-mid) var(--ease);
}

.page-about .about-partner:hover .about-partner__name::before,
.page-about .about-partner:focus-visible .about-partner__name::before {
  width: 32px;
}

.page-about .about-partner__note {
  margin: 10px 0 0 28px;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--c-mist);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height var(--t-mid) var(--ease), opacity var(--t-mid) var(--ease),
              margin-top var(--t-mid) var(--ease);
}

.page-about .about-partner:hover .about-partner__note,
.page-about .about-partner:focus-visible .about-partner__note,
.page-about .about-partner:focus-within .about-partner__note {
  max-height: 12em;
  opacity: 1;
}

/* ---------- 持续投入 ---------- */
.page-about .about-cta__panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-line-2);
  border-radius: var(--r-md);
  padding: clamp(26px, 4.4vw, 54px);
  background:
    radial-gradient(110% 130% at 92% 0%, rgba(255, 107, 61, .16), transparent 58%),
    linear-gradient(154deg, rgba(20, 54, 94, .66), rgba(11, 31, 56, .8));
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-about .about-cta__panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-neon), var(--c-amber) 55%, var(--c-pulse));
}

.page-about .about-cta__copy .display-2 {
  margin: 12px 0 0;
  color: #fff;
}

.page-about .about-cta__copy .prose {
  margin-top: clamp(16px, 2.4vw, 24px);
  color: var(--c-ice);
}

.page-about .about-cta__sub {
  color: var(--c-mist) !important;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-league {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
  }

  .page-about .about-league__meta {
    grid-column: 3;
    margin-top: 4px;
    text-align: right;
    white-space: nowrap;
  }

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

@media (min-width: 860px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(36px, 6vw, 96px);
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(36px, 6vw, 88px);
    align-items: start;
  }

  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(36px, 6vw, 88px);
    align-items: start;
  }

  .page-about .about-cta__panel {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .about-hero__title {
    max-width: 26ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-v,
  .page-about .about-league,
  .page-about .about-partner,
  .page-about .about-partner__note,
  .page-about .about-partner__name::before,
  .page-about .about-v__no {
    transition: none;
  }

  .page-about .about-v:hover,
  .page-about .about-v:focus-within {
    transform: none;
  }
}
```