.page-about {
  --about-rail-w: 72px;
  --about-line: rgba(0, 229, 168, .38);
  --about-line-soft: rgba(74, 102, 117, .5);
}

.page-about .kx-breadcrumb {
  padding: 20px 0 8px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 32px 0 52px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -10% -20% auto -20%;
  height: 420px;
  background: radial-gradient(60% 100% at 28% 0%, rgba(0, 229, 168, .16), transparent 72%),
              radial-gradient(50% 90% at 88% 10%, rgba(255, 122, 26, .1), transparent 70%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-about .about-hero__copy {
  display: grid;
  gap: 16px;
}

.page-about .about-hero__copy .kx-h1 {
  max-width: 14ch;
}

.page-about .about-hero__copy .kx-lede {
  max-width: 36ch;
}

.page-about .about-hero__rail {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--tone-muted);
}

.page-about .about-hero__rail-line {
  display: block;
  width: 44px;
  height: 2px;
  background: linear-gradient(90deg, var(--tone-cyan), transparent);
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--tone-stroke);
  background: var(--tone-panel);
}

.page-about .about-hero__figure .kx-media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.72) contrast(1.04);
}

.page-about .about-hero__caption {
  margin: 0;
  padding: 12px 16px 14px;
  border-top: 1px solid var(--about-line-soft);
}

/* ---------- 起点 ---------- */
.page-about .about-origin {
  position: relative;
  padding-top: 40px;
}

.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-about .about-origin__rail {
  writing-mode: horizontal-tb;
  align-self: start;
  letter-spacing: .3em;
  color: var(--tone-cyan);
  border-left: 2px solid var(--tone-cyan);
  padding-left: 10px;
}

.page-about .about-origin__body {
  max-width: 62ch;
}

.page-about .about-origin__lead {
  font-size: 17px;
  color: var(--tone-ink-soft);
}

.page-about .about-origin__lead::first-letter {
  float: left;
  font-size: 3.1em;
  line-height: .92;
  font-weight: 900;
  margin: 4px 12px 0 0;
  color: var(--tone-cyan);
}

.page-about .about-origin__side {
  display: grid;
  gap: 1px;
  background: var(--about-line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-origin__stat {
  display: grid;
  gap: 4px;
  padding: 18px 20px;
  background: var(--tone-panel);
}

.page-about .about-origin__stat-value {
  font-size: 34px;
  line-height: 1;
  font-weight: 600;
  color: var(--tone-cyan);
}

.page-about .about-origin__stat-label {
  font-size: 13px;
  color: var(--tone-muted);
}

/* ---------- 联赛切换 ---------- */
.page-about .about-league {
  border-top: 1px solid var(--about-line-soft);
  border-bottom: 1px solid var(--about-line-soft);
}

.page-about .about-league__head {
  max-width: 40ch;
  margin-bottom: 28px;
}

.page-about .about-league__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-about .about-league__text {
  display: grid;
  gap: 14px;
  max-width: 58ch;
}

.page-about .about-league__viz {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 22px;
  border: 1px solid var(--tone-stroke);
  border-radius: var(--r-lg);
  background: var(--tone-panel-up);
}

.page-about .about-league__bar {
  display: flex;
  gap: 6px;
  align-items: flex-end;
  height: 58px;
}

.page-about .about-league__seg {
  flex: 1 1 0;
  height: 26px;
  border-radius: var(--r-pill);
  background: rgba(74, 102, 117, .55);
}

.page-about .about-league__seg.is-on {
  height: 58px;
  background: linear-gradient(180deg, var(--tone-cyan), var(--tone-deep));
  box-shadow: 0 0 0 1px rgba(0, 229, 168, .5), 0 0 22px rgba(0, 229, 168, .28);
}

.page-about .about-league__viz-note {
  margin: 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--tone-orange);
}

/* ---------- 团队 ---------- */
.page-about .about-team__head {
  max-width: 44ch;
  margin-bottom: 28px;
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-team__card {
  position: relative;
  padding: 22px 22px 20px;
  border-radius: var(--r-md);
  background: var(--tone-panel);
  border: 1px solid transparent;
  transition: transform .24s ease, border-color .24s ease, background-color .24s ease;
}

.page-about .about-team__card:hover,
.page-about .about-team__card:focus-visible,
.page-about .about-team__card:focus-within {
  transform: translateY(-2px);
  border-color: var(--about-line);
  background: var(--tone-panel-up);
  outline: none;
}

.page-about .about-team__index {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--tone-cyan);
}

.page-about .about-team__card .kx-h3 {
  margin: 0 0 10px;
}

.page-about .about-team__summary {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--tone-ink-soft);
}

.page-about .about-team__more {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.75;
  color: var(--tone-muted);
  transition: max-height .3s ease, opacity .3s ease, margin-top .3s ease, padding-top .3s ease;
}

.page-about .about-team__card:hover .about-team__more,
.page-about .about-team__card:focus-within .about-team__more {
  max-height: 160px;
  opacity: 1;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--about-line-soft);
}

.page-about .about-team__figure {
  margin: 26px 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--tone-stroke);
  background: var(--tone-panel);
}

.page-about .about-team__figure .kx-media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.68) brightness(.92);
}

.page-about .about-team__caption {
  margin: 0;
  padding: 12px 16px 14px;
  border-top: 1px solid var(--about-line-soft);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  padding-top: 56px;
  padding-bottom: 56px;
  background-image: linear-gradient(180deg, rgba(244, 247, 248, 0) 0%, rgba(234, 242, 245, .8) 100%);
}

.page-about .about-timeline__head {
  max-width: 42ch;
  margin-bottom: 30px;
}

.page-about .about-timeline__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-about .about-timeline__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 46px;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(180deg, var(--tone-deep) 0%, rgba(6, 61, 49, .12) 100%);
}

.page-about .about-timeline__item {
  position: relative;
  padding-bottom: 32px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -46px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--tone-light);
  border: 3px solid var(--tone-deep);
  box-sizing: border-box;
}

.page-about .about-timeline__item .kx-h3 {
  margin: 0 0 8px;
}

.page-about .about-timeline__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #3d4c56;
  max-width: 46ch;
}

.page-about .about-timeline__year {
  display: block;
  margin-bottom: 6px;
  font-size: 22px;
  font-weight: 600;
  color: var(--tone-deep);
  letter-spacing: .02em;
}

.page-about .about-timeline__figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid rgba(74, 102, 117, .35);
  background: #dde6ea;
}

.page-about .about-timeline__figure .kx-media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  opacity: .82;
  mix-blend-mode: multiply;
}

.page-about .about-timeline__figure .kx-note {
  padding: 12px 16px 14px;
  border-top: 1px solid rgba(74, 102, 117, .28);
  color: #4b5d68;
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners__head {
  max-width: 42ch;
  margin-bottom: 28px;
}

.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-about .about-partners__card {
  position: relative;
  padding: 24px 22px;
  border-radius: var(--r-md);
  background: linear-gradient(150deg, rgba(18, 37, 58, .96), rgba(11, 22, 34, .96));
  border: 1px solid var(--about-line-soft);
}

.page-about .about-partners__num {
  margin: 0 0 12px;
  font-size: 40px;
  line-height: 1;
  font-weight: 600;
  color: var(--tone-orange);
}

.page-about .about-partners__unit {
  font-size: 20px;
  margin-left: 4px;
}

.page-about .about-partners__card .kx-h3 {
  margin: 0 0 10px;
}

.page-about .about-partners__card .kx-body {
  margin: 0;
  font-size: 15px;
  color: var(--tone-ink-soft);
}

.page-about .about-partners__footnote {
  margin: 22px 0 0;
  font-size: 14px;
  color: var(--tone-muted);
}

.page-about .about-partners__link {
  color: var(--tone-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 168, .4);
}

.page-about .about-partners__link:hover,
.page-about .about-partners__link:focus-visible {
  border-bottom-color: var(--tone-cyan);
}

/* ---------- 下一步 ---------- */
.page-about .about-next__head {
  max-width: 44ch;
  margin-bottom: 26px;
}

.page-about .about-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--about-line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-about .about-next__item {
  padding: 24px 22px;
  background: var(--tone-panel);
  transition: background-color .22s ease;
}

.page-about .about-next__item:hover {
  background: var(--tone-panel-up);
}

.page-about .about-next__index {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--tone-cyan);
}

.page-about .about-next__item .kx-h3 {
  margin: 0 0 8px;
}

.page-about .about-next__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--tone-ink-soft);
}

.page-about .about-next__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 56px 0 72px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 56px;
    align-items: center;
  }

  .page-about .about-hero__copy {
    gap: 20px;
  }

  .page-about .about-origin__grid {
    grid-template-columns: var(--about-rail-w) minmax(0, 7fr) minmax(0, 4fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-origin__rail {
    writing-mode: vertical-rl;
    border-left: 0;
    border-top: 0;
    padding-left: 0;
    border-right: 2px solid var(--tone-cyan);
    padding-right: 10px;
    height: 96px;
    justify-self: start;
  }

  .page-about .about-league__body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: center;
  }

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

  .page-about .about-team__figure {
    margin-top: 34px;
  }

  .page-about .about-timeline__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: start;
  }

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

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

@media (min-width: 1180px) {
  .page-about .about-hero__grid {
    gap: 72px;
  }

  .page-about .about-hero__copy .kx-h1 {
    max-width: 13ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-team__card,
  .page-about .about-team__more,
  .page-about .about-next__item {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>
<<<END>>>