.page-about {
  --about-gap: 32px;
  --about-rail: 176px;
  font-family: var(--f-body);
  color: var(--c-ink);
}

.page-about h2 {
  font-family: var(--f-heading);
  font-weight: 800;
  font-size: clamp(24px, 5.6vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 8px 0 20px;
}

.page-about h3 {
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.5;
  margin: 0 0 8px;
}

.page-about p {
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 16px;
}

.page-about p:last-child {
  margin-bottom: 0;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 32px 0 64px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-hero__lead::before {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  background: var(--c-brand);
  margin-bottom: 20px;
}

.page-about .about-hero h1 {
  font-family: var(--f-heading);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 56px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  margin: 12px 0 18px;
}

.page-about .about-hero__dek {
  max-width: 34em;
  font-size: 17px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 1px;
  margin: 0;
  list-style: none;
  background-color: var(--c-green);
}

.page-about .about-hero__stats li {
  background: var(--c-green);
  color: var(--c-paper);
  padding: 18px 16px;
  min-width: 0;
}

.page-about .about-hero__num {
  display: block;
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.page-about .about-hero__cap {
  display: block;
  margin-top: 6px;
  font-family: var(--f-label);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(247, 245, 241, 0.74);
}

/* ---------- 通用图 ---------- */
.page-about .about-fig {
  margin: 0;
}

.page-about .about-fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--c-line);
}

.page-about .about-fig figcaption {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--c-line);
  font-family: var(--f-label);
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.6;
  color: rgba(16, 24, 21, 0.68);
}

/* ---------- 起源 ---------- */
.page-about .about-origin {
  padding: 8px 0 72px;
}

.page-about .about-origin__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-origin__text p {
  max-width: 36em;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  padding: 64px 0 72px;
  background: var(--c-mist);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-about .about-timeline__layout {
  display: grid;
  gap: 0;
}

.page-about .about-timeline__index {
  margin-bottom: 8px;
}

.page-about .about-timeline__index ol {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-timeline__index li {
  flex: 0 0 auto;
}

.page-about .about-timeline__index a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--c-line);
  background: var(--c-paper);
  color: var(--c-ink);
  text-decoration: none;
  font-family: var(--f-label);
  font-size: 12px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.page-about .about-timeline__index a:hover,
.page-about .about-timeline__index a:focus-visible {
  border-color: var(--c-green);
  background: var(--c-yellow);
}

.page-about .about-timeline__index .data-num {
  font-weight: 600;
}

.page-about .about-stage {
  border-top: 1px solid var(--c-line);
  padding: 28px 0 32px;
}

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

.page-about .about-stage__year {
  font-family: var(--f-heading);
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  font-size: clamp(54px, 15vw, 96px);
  line-height: 0.9;
  letter-spacing: -0.025em;
  color: var(--c-green);
  margin: 0 0 14px;
}

.page-about .about-stage h3 {
  font-family: var(--f-label);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}

.page-about .about-stage p {
  max-width: 38em;
}

.page-about .about-stage__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding: 72px 0;
}

.page-about .about-team__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-team__text p {
  max-width: 36em;
}

/* ---------- 教练履历 ---------- */
.page-about .about-coach {
  padding: 0 0 72px;
}

.page-about .about-coach__panel {
  display: grid;
  gap: 28px;
  padding: 32px 20px;
}

.page-about .about-coach__intro p {
  color: rgba(247, 245, 241, 0.86);
  max-width: 34em;
}

.page-about .about-coach__sample {
  border: 1px solid rgba(247, 245, 241, 0.24);
  padding: 18px 16px;
  align-self: start;
}

.page-about .about-sample__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 8px;
  font-family: var(--f-label);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-yellow);
}

.page-about .about-sample__head .data-num {
  font-size: 14px;
  color: var(--c-paper);
  white-space: nowrap;
}

.page-about .about-record {
  margin: 0;
}

.page-about .about-record__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 4px 16px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(247, 245, 241, 0.16);
}

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

.page-about .about-record dt {
  font-family: var(--f-label);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(247, 245, 241, 0.72);
}

.page-about .about-record dd {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--c-paper);
  white-space: nowrap;
}

.page-about .about-sample__foot {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(247, 245, 241, 0.16);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(247, 245, 241, 0.72);
}

/* ---------- 主客场 ---------- */
.page-about .about-venue {
  padding: 8px 0 72px;
}

.page-about .about-venue__lead {
  max-width: 40em;
}

.page-about .about-venue__sides {
  display: grid;
  gap: 1px;
  margin: 28px 0 32px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-about .about-venue__side {
  background: var(--c-paper);
  padding: 24px 20px;
}

.page-about .about-venue__side--home {
  border-top: 3px solid var(--c-home);
}

.page-about .about-venue__side--away {
  border-top: 3px solid var(--c-away);
}

.page-about .about-venue__side h3 {
  margin-top: 12px;
  font-family: var(--f-heading);
  font-weight: 800;
  font-size: 20px;
}

.page-about .about-venue__side p {
  font-size: 15px;
  max-width: 32em;
}

.page-about .about-venue__note {
  max-width: 44em;
  border-left: 3px solid var(--c-green);
  padding-left: 20px;
}

.page-about .about-venue__note h3 {
  font-family: var(--f-heading);
  font-weight: 800;
  font-size: 20px;
  margin-bottom: 12px;
}

/* ---------- 合作 ---------- */
.page-about .about-partners {
  padding: 64px 0 72px;
  background: var(--c-mist);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-about .about-partners__lead {
  max-width: 42em;
}

.page-about .about-partners__matrix {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 28px 0 32px;
  padding: 0;
  list-style: none;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-about .about-partners__cell {
  background: var(--c-paper);
  padding: 18px 16px;
  display: grid;
  gap: 4px;
}

.page-about .about-partners__num {
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  font-weight: 600;
  color: var(--c-brand);
  white-space: nowrap;
}

.page-about .about-partners__name {
  font-family: var(--f-label);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.page-about .about-partners__desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(16, 24, 21, 0.74);
}

.page-about .about-partners__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 价值 ---------- */
.page-about .about-value__fig {
  margin: 0;
}

.page-about .about-value__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}

.page-about .about-value__body {
  padding-top: 56px;
  padding-bottom: 72px;
}

.page-about .about-value__grid {
  display: grid;
  gap: 1px;
  margin-top: 28px;
  background: var(--c-line);
  border-top: 1px solid var(--c-line);
}

.page-about .about-value__item {
  background: transparent;
  padding: 24px 0 8px;
}

.page-about .about-value__item h3 {
  font-family: var(--f-heading);
  font-weight: 800;
  font-size: 20px;
  margin-bottom: 10px;
}

.page-about .about-value__item p {
  font-size: 15px;
  max-width: 34em;
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  padding: 0 0 88px;
}

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

.page-about .about-next__link {
  display: grid;
  gap: 6px;
  padding: 20px 16px;
  background: var(--c-paper);
  text-decoration: none;
  color: var(--c-ink);
  transition: background 180ms var(--ease), transform 220ms var(--ease);
}

.page-about .about-next__link:hover,
.page-about .about-next__link:focus-visible {
  background: var(--c-yellow);
  transform: translateY(-3px);
}

.page-about .about-next__name {
  font-family: var(--f-heading);
  font-weight: 800;
  font-size: 19px;
}

.page-about .about-next__desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(16, 24, 21, 0.74);
}

/* ---------- 动效 ---------- */
.page-about .about-stage[data-reveal],
.page-about .about-fig[data-reveal],
.page-about .about-coach__panel[data-reveal] {
  transition: opacity 280ms var(--ease), transform 280ms var(--ease);
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stage[data-reveal],
  .page-about .about-fig[data-reveal],
  .page-about .about-coach__panel[data-reveal],
  .page-about .about-next__link {
    transition: opacity 200ms linear;
    transform: none !important;
  }
}

/* ---------- 中屏 ---------- */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 48px 0 88px;
  }

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

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

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

  .page-about .about-value__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 32px;
  }

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

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

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

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

/* ---------- 宽屏 ---------- */
@media (min-width: 1024px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 48px;
  }

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

  .page-about .about-timeline__layout {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .about-timeline__index {
    position: sticky;
    top: 32px;
    margin-bottom: 0;
  }

  .page-about .about-timeline__index ol {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-timeline__index li {
    flex: none;
  }

  .page-about .about-timeline__index a {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: baseline;
    gap: 10px;
    padding: 12px 0;
    border: 0;
    border-top: 1px solid var(--c-line);
    background: transparent;
  }

  .page-about .about-timeline__index a:hover,
  .page-about .about-timeline__index a:focus-visible {
    background: transparent;
    color: var(--c-brand);
  }

  .page-about .about-stage {
    padding: 36px 0 44px;
  }

  .page-about .about-coach__panel {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 48px;
    padding: 48px 40px;
  }

  .page-about .about-origin__grid,
  .page-about .about-team__grid {
    gap: 56px;
  }

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

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