.page-about {
  --about-column: 640px;
  --about-gap: 28px;
  color: var(--silver);
  background: var(--bg);
}

/* ---------- 档案封面 ---------- */
.page-about .about-cover {
  border-bottom: 1px solid var(--line);
  padding: 0 0 48px;
}

.page-about .about-cover__band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0 22px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-cover__stamp {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--grey);
  text-transform: uppercase;
}

.page-about .about-cover__body {
  max-width: var(--about-column);
  padding: 40px 0 8px;
}

.page-about .about-cover__body h1 {
  font-size: 32px;
  line-height: 1.22;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--paper);
  margin: 12px 0 18px;
}

.page-about .about-cover__lead {
  font-size: 17px;
  line-height: 1.78;
  color: var(--silver);
  margin: 0;
}

.page-about .about-cover__figure {
  margin: 36px 0 0;
}

/* ---------- 关键数字 ---------- */
.page-about .about-figures {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 40px 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-figures__item {
  background: var(--panel);
  padding: 22px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background 180ms var(--ease), border-color 180ms var(--ease);
}

.page-about .about-figures__item:hover {
  background: var(--panel-lift);
}

.page-about .about-figures__num {
  font-size: 46px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--paper);
}

.page-about .about-figures__label {
  font-size: 13px;
  font-weight: 700;
  color: var(--silver);
}

.page-about .about-figures__note {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--grey);
}

/* ---------- 数据路径 ---------- */
.page-about .about-path {
  padding: 64px 0 0;
  border-bottom: 1px solid var(--line);
  padding-bottom: 56px;
}

.page-about .about-path__intro {
  max-width: var(--about-column);
  font-size: 16px;
  line-height: 1.8;
  margin: 18px 0 0;
  color: var(--silver);
}

.page-about .about-flow {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-flow__step {
  background: var(--panel);
  padding: 22px 20px;
  transition: transform 180ms var(--ease), background 180ms var(--ease);
}

.page-about .about-flow__step:hover {
  transform: translateY(-2px);
  background: var(--panel-lift);
}

.page-about .about-flow__idx {
  display: inline-block;
  width: 22px;
  height: 22px;
  line-height: 22px;
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--signal);
  border: 1px solid var(--line-hi);
  border-radius: var(--radius);
}

.page-about .about-flow__name {
  font-size: 18px;
  font-weight: 800;
  color: var(--paper);
  margin: 12px 0 4px;
}

.page-about .about-flow__time {
  display: block;
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--cyan);
  margin-bottom: 10px;
}

.page-about .about-flow__step p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
  margin: 0;
}

.page-about .about-path__aside {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 30px;
}

.page-about .about-path__aside .frame {
  max-width: 320px;
}

.page-about .about-path__aside .dossier__title {
  font-size: 15px;
  font-weight: 800;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-about .about-path__aside .dossier__meta {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--grey);
  margin: 0;
}

/* ---------- 赛季档案 ---------- */
.page-about .about-archive {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-archive__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 22px;
}

.page-about .about-archive__text {
  max-width: var(--about-column);
}

.page-about .about-archive__text p {
  font-size: 16px;
  line-height: 1.8;
  margin: 0 0 16px;
  color: var(--silver);
}

.page-about .about-archive__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-archive__list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--silver);
}

.page-about .about-archive__list .mono {
  min-width: 76px;
  color: var(--signal);
  font-weight: 700;
}

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

/* ---------- 团队构成 ---------- */
.page-about .about-team {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-team__intro {
  max-width: var(--about-column);
  font-size: 16px;
  line-height: 1.8;
  margin: 18px 0 0;
  color: var(--silver);
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 32px;
}

.page-about .about-team__chart {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}

.page-about .about-donut {
  width: 200px;
  height: 200px;
  max-width: 100%;
}

.page-about .about-donut__num {
  fill: var(--paper);
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
}

.page-about .about-donut__cap {
  fill: var(--grey);
  font-family: var(--font-sans);
  font-size: 12px;
}

.page-about .about-team__legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13.5px;
  color: var(--silver);
}

.page-about .about-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 8px;
  border-radius: 50%;
}

.page-about .about-dot--signal { background: var(--signal); }
.page-about .about-dot--cyan { background: var(--cyan); }
.page-about .about-dot--violet { background: var(--violet); }

.page-about .about-team__roles {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-role {
  background: var(--panel);
  padding: 20px;
  transition: background 180ms var(--ease);
}

.page-about .about-role:hover {
  background: var(--panel-lift);
}

.page-about .about-role__name {
  font-size: 15.5px;
  font-weight: 800;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-about .about-role p {
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--grey);
  margin: 0;
}

/* ---------- 发展历程 ---------- */
.page-about .about-history {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-history__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 26px;
}

.page-about .about-years {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.page-about .about-years__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 12px;
  font-size: 13px;
  color: var(--silver);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background 160ms var(--ease);
}

.page-about .about-years__link .mono {
  color: var(--grey);
  font-weight: 700;
}

.page-about .about-years__link:hover,
.page-about .about-years__link:focus-visible {
  border-color: var(--line-hi);
  background: var(--panel);
  color: var(--paper);
}

.page-about .about-years__link:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--line);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 30px;
}

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

.page-about .about-timeline__node {
  position: absolute;
  left: -22px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px var(--bg);
}

.page-about .about-timeline__year {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--signal);
  margin-bottom: 6px;
}

.page-about .about-timeline__title {
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-about .about-timeline__item p {
  max-width: var(--about-column);
  font-size: 14px;
  line-height: 1.78;
  color: var(--grey);
  margin: 0;
}

/* ---------- 合作与资质 ---------- */
.page-about .about-credits {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-credits__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 22px;
}

.page-about .about-credits__text {
  max-width: var(--about-column);
}

.page-about .about-credits__text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--silver);
  margin: 0 0 16px;
}

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

.page-about .about-creds {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-creds__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-about .about-creds__item:hover {
  border-color: var(--line-hi);
  transform: translateY(-2px);
}

.page-about .about-creds__num {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-about .about-creds__label {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--grey);
}

.page-about .about-credits__claim {
  margin: 48px 0 6px;
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.1;
  color: var(--paper);
}

.page-about .about-credits__claim-note {
  max-width: var(--about-column);
  font-size: 14px;
  line-height: 1.75;
  color: var(--grey);
  margin: 0;
}

/* ---------- 继续了解 ---------- */
.page-about .about-next {
  padding: 56px 0 72px;
}

.page-about .about-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 24px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-next__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 18px 22px;
  background: var(--panel);
  text-decoration: none;
  color: inherit;
  transition: background 180ms var(--ease), transform 180ms var(--ease);
}

.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  background: var(--panel-lift);
  transform: translateY(-2px);
}

.page-about .about-next__card:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-about .about-next__kicker {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--violet);
}

.page-about .about-next__name {
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
}

.page-about .about-next__desc {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--grey);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .about-cover__body h1 {
    font-size: 40px;
  }

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

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

  .page-about .about-archive__grid,
  .page-about .about-path__aside,
  .page-about .about-team__grid,
  .page-about .about-credits__layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
    gap: 32px;
  }

  .page-about .about-team__grid {
    grid-template-columns: 260px minmax(0, 1fr);
  }

  .page-about .about-history__layout {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 36px;
  }

  .page-about .about-years {
    flex-direction: column;
    flex-wrap: nowrap;
    position: sticky;
    top: calc(var(--bar-h) + 20px);
  }

  .page-about .about-years__link {
    justify-content: flex-start;
    width: 100%;
  }

  .page-about .about-creds {
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
  }

  .page-about .about-creds__item {
    border: 0;
    border-radius: 0;
  }

  .page-about .about-credits__claim {
    font-size: 56px;
  }

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

@media (min-width: 1080px) {
  .page-about .about-cover__body h1 {
    font-size: 48px;
  }

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

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

  .page-about .about-team__grid {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 48px;
  }

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

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

  .page-about .about-credits__claim {
    font-size: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition: none !important;
    animation: none !important;
  }

  .page-about .about-flow__step:hover,
  .page-about .about-creds__item:hover,
  .page-about .about-next__card:hover {
    transform: none;
  }
}
<<<END>>>