.page-about {
  --ab-shell: var(--shell);
  --ab-soft: rgba(34, 49, 79, .5);
  --ab-panel: rgba(14, 35, 80, .62);
  display: block;
  background: var(--navy-900);
  color: var(--on-dark);
  overflow-x: hidden;
}

/* ---------- 通用链接 ---------- */
.page-about .about-link {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 123, 255, .45);
  padding-bottom: 1px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.page-about .about-link:hover,
.page-about .about-link:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding-top: calc(var(--header-h) + 56px);
  padding-bottom: 72px;
  background: var(--navy-900);
  display: flex;
  align-items: flex-end;
  min-height: 70vh;
}
.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.page-about .about-hero__bg img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  display: block;
  opacity: .44;
  filter: saturate(.85) brightness(.72);
}
.page-about .about-hero__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(6, 13, 31, .88) 0%, rgba(6, 13, 31, .38) 46%, rgba(6, 13, 31, .96) 100%),
    linear-gradient(90deg, rgba(6, 13, 31, .9) 0%, rgba(6, 13, 31, .1) 72%);
}
.page-about .about-hero__inner {
  position: relative;
  width: 100%;
}
.page-about .about-hero .breadcrumb {
  margin-bottom: 28px;
}
.page-about .about-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-note);
  font-size: 13px;
  letter-spacing: .06em;
}
.page-about .about-hero .breadcrumb__item::after {
  content: "/";
  margin-left: 8px;
  color: var(--slate);
}
.page-about .about-hero .breadcrumb__link {
  color: var(--on-dark-dim);
  text-decoration: none;
  transition: color .18s var(--ease);
}
.page-about .about-hero .breadcrumb__link:hover,
.page-about .about-hero .breadcrumb__link:focus-visible {
  color: var(--gold);
}
.page-about .about-hero .breadcrumb__current {
  color: var(--gold);
}
.page-about .about-hero .eyebrow {
  color: var(--gold);
  font-family: var(--font-note);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  margin: 0 0 18px;
  padding-left: 34px;
  position: relative;
}
.page-about .about-hero .eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 24px;
  height: 2px;
  background: var(--gold);
  transform: translateY(-50%);
}
.page-about .about-hero__title {
  margin: 0 0 24px;
  max-width: 15ch;
  color: #fff;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 4.5rem);
  line-height: 1.04;
  letter-spacing: -.02em;
}
.page-about .about-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.8;
  color: var(--on-dark);
}

/* ---------- 分区骨架 ---------- */
.page-about .section {
  padding-top: 72px;
  padding-bottom: 72px;
  position: relative;
}

.page-about .about-frame {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.page-about .about-frame__rail {
  display: none;
}
.page-about .about-frame__body > .eyebrow,
.page-about .about-day__head .eyebrow,
.page-about .about-timeline > .container > .eyebrow,
.page-about .about-team__head .eyebrow,
.page-about .about-eco__text .eyebrow,
.page-about .about-next__panel .eyebrow {
  font-family: var(--font-note);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  margin: 0 0 16px;
  padding-left: 34px;
  position: relative;
}
.page-about .about-origin .eyebrow { color: var(--navy-700); }
.page-about .about-day .eyebrow { color: var(--blue); }
.page-about .about-lines .eyebrow { color: var(--navy-700); }
.page-about .about-team .eyebrow { color: var(--gold); }
.page-about .about-timeline > .container > .eyebrow { color: var(--navy-700); }
.page-about .about-eco__text .eyebrow { color: var(--gold); }
.page-about .about-next__panel .eyebrow { color: var(--navy-700); }

.page-about .about-frame__body > .eyebrow::before,
.page-about .about-day__head .eyebrow::before,
.page-about .about-timeline > .container > .eyebrow::before,
.page-about .about-team__head .eyebrow::before,
.page-about .about-eco__text .eyebrow::before,
.page-about .about-next__panel .eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 24px;
  height: 2px;
  background: currentColor;
  transform: translateY(-50%);
}

.page-about .h-lg {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.6rem, 4.4vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -.015em;
}
.page-about .h-md {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.1rem, 2.6vw, 1.5rem);
  line-height: 1.2;
}
.page-about .lede {
  font-size: clamp(1rem, 1.8vw, 1.0625rem);
  line-height: 1.85;
  margin: 0 0 28px;
  max-width: 62ch;
}
.page-about .prose p {
  margin: 0 0 16px;
  line-height: 1.85;
  max-width: 66ch;
}
.page-about .prose p:last-child {
  margin-bottom: 0;
}

/* ---------- 品牌起点（浅色区） ---------- */
.page-about .about-origin {
  background: var(--paper);
  color: var(--ink);
  clip-path: polygon(0 0, 100% 2.6%, 100% 100%, 0 97.4%);
  padding-top: 104px;
  padding-bottom: 104px;
}
.page-about .about-origin .h-lg,
.page-about .about-origin .prose p {
  color: var(--ink);
}
.page-about .about-origin__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 8px;
}
.page-about .about-swatches {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  align-self: start;
}
.page-about .about-swatch {
  background: var(--paper);
  padding: 18px 20px;
  display: grid;
  grid-template-columns: 28px 1fr;
  grid-template-rows: auto auto;
  column-gap: 14px;
  align-items: center;
}
.page-about .about-swatch__chip {
  grid-row: 1 / span 2;
  width: 28px;
  height: 28px;
  display: block;
  border: 1px solid var(--line);
}
.page-about .about-swatch--night .about-swatch__chip {
  background: linear-gradient(140deg, #0E2350, #060D1F);
}
.page-about .about-swatch--gold .about-swatch__chip {
  background: linear-gradient(140deg, #FFD873, #F5B301);
}
.page-about .about-swatch--grid .about-swatch__chip {
  background:
    linear-gradient(#22314F 1px, transparent 1px) 0 0 / 100% 7px,
    linear-gradient(90deg, #22314F 1px, transparent 1px) 0 0 / 7px 100%,
    #F6F8FC;
}
.page-about .about-swatch__name {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 15px;
  color: var(--ink);
}
.page-about .about-swatch__desc {
  margin: 2px 0 0;
  grid-column: 2;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 跟队球迷的一天（深色区） ---------- */
.page-about .about-day {
  background: var(--navy-800);
  color: var(--on-dark);
}
.page-about .about-day__head {
  max-width: 780px;
  margin-bottom: 48px;
}
.page-about .about-day__lede {
  color: var(--on-dark-dim);
}
.page-about .about-day__beats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .about-day__beat {
  background: var(--navy-800);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  transition: background .2s var(--ease);
}
.page-about .about-day__beat:hover {
  background: rgba(27, 63, 160, .28);
}
.page-about .about-day__beat h3 {
  color: #fff;
  margin-bottom: 4px;
}
.page-about .about-day__beat p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--on-dark-dim);
}
.page-about .about-day__stamp {
  font-family: var(--font-note);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}
.page-about .about-day__beat--live .about-day__stamp {
  color: var(--orange);
}
.page-about .about-day__tag {
  margin-top: auto;
  padding-top: 14px;
  font-family: var(--font-note);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--slate);
  border-top: 1px solid var(--line);
}
.page-about .about-day__tag--live {
  color: var(--orange);
}

/* ---------- 三条主线（浅色区） ---------- */
.page-about .about-lines {
  background: var(--paper);
  color: var(--ink);
}
.page-about .about-lines .h-lg,
.page-about .about-lines .h-md {
  color: var(--ink);
}
.page-about .about-lines__lede {
  color: var(--slate);
}
.page-about .about-lines__list {
  list-style: none;
  margin: 8px 0 32px;
  padding: 0;
  counter-reset: abline;
}
.page-about .about-lines__item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  padding: 24px 0;
  border-top: 1px solid rgba(34, 49, 79, .22);
  align-items: start;
}
.page-about .about-lines__item:last-child {
  border-bottom: 1px solid rgba(34, 49, 79, .22);
}
.page-about .about-lines__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 62ch;
}
.page-about .about-lines__no {
  font-family: var(--font-display);
  font-size: 30px;
  line-height: 1;
  color: var(--navy-700);
  font-variant-numeric: tabular-nums;
}
.page-about .about-lines__item:hover .about-lines__no {
  color: var(--gold);
}
.page-about .about-lines__item:hover .about-lines__no,
.page-about .about-lines__no {
  transition: color .2s var(--ease);
}
.page-about .about-lines__outro {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  max-width: 62ch;
}

/* ---------- 数据团队（深色区） ---------- */
.page-about .about-team {
  background: var(--navy-900);
  color: var(--on-dark);
  position: relative;
}
.page-about .about-team::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(34, 49, 79, .55) 1px, transparent 1px) 0 0 / 100% 72px,
    linear-gradient(90deg, rgba(34, 49, 79, .55) 1px, transparent 1px) 0 0 / 72px 100%;
  opacity: .5;
  pointer-events: none;
}
.page-about .about-team > .container {
  position: relative;
}
.page-about .about-team__head {
  max-width: 760px;
  margin-bottom: 40px;
}
.page-about .about-team__head .h-lg {
  color: #fff;
}
.page-about .about-team__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
.page-about .about-team__prose p {
  color: var(--on-dark-dim);
}
.page-about .about-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-content: start;
}
.page-about .about-fact {
  background: var(--ab-panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  padding: 18px 20px;
  transition: border-color .2s var(--ease), background .2s var(--ease);
  outline-offset: 3px;
}
.page-about .about-fact:hover,
.page-about .about-fact:focus-within {
  border-color: var(--gold);
  background: rgba(27, 63, 160, .34);
}
.page-about .about-fact__num {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 3.25rem);
  line-height: .95;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}
.page-about .about-fact__unit {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .34em;
  margin-left: 6px;
  color: var(--gold-soft);
  letter-spacing: 0;
}
.page-about .about-fact__label {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  color: #fff;
}
.page-about .about-fact__note {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.75;
  color: var(--on-dark-dim);
  transition: max-height .28s var(--ease), opacity .28s var(--ease), margin-top .28s var(--ease);
}
.page-about .about-fact:hover .about-fact__note,
.page-about .about-fact:focus-within .about-fact__note {
  max-height: 7em;
  opacity: 1;
  margin-top: 10px;
}
.page-about .about-team__figure {
  margin: 48px 0 0;
}
.page-about .about-team__figure .media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
}
.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-about .about-team__figure .media-frame__caption,
.page-about .about-eco__figure .media-frame__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 版本时间轴（浅色区） ---------- */
.page-about .about-timeline {
  background: var(--paper);
  color: var(--ink);
}
.page-about .about-timeline .h-lg {
  color: var(--ink);
}
.page-about .about-timeline__lede {
  color: var(--slate);
}
.page-about .about-timeline__rail {
  height: 1px;
  margin: 8px 0 0;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold) 12%, rgba(34, 49, 79, .35) 34%, rgba(34, 49, 79, .35) 100%);
  transform-origin: left center;
  animation: about-rail-draw .4s var(--ease) both;
}
@keyframes about-rail-draw {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}
.page-about .about-timeline__strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 32px;
}
.page-about .about-timeline__strip .tabstrip__tab {
  font-family: var(--font-note);
  font-size: 13px;
  letter-spacing: .1em;
  padding: 10px 16px;
  background: transparent;
  border: 1px solid rgba(34, 49, 79, .3);
  color: var(--slate);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}
.page-about .about-timeline__strip .tabstrip__tab:hover {
  border-color: var(--navy-700);
  color: var(--navy-700);
}
.page-about .about-timeline__strip .tabstrip__tab[aria-selected="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
  font-weight: 700;
}
.page-about .about-timeline__panels {
  border-top: 1px solid rgba(34, 49, 79, .22);
  padding-top: 28px;
}
.page-about .about-timeline__panel {
  max-width: 72ch;
  animation: about-panel-in .18s var(--ease) both;
}
@keyframes about-panel-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
.page-about .about-timeline__panel .h-md {
  color: var(--ink);
}
.page-about .about-timeline__panel p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
}
.page-about .about-timeline__year {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  line-height: 1;
  color: var(--navy-700);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
  margin: 0 0 10px;
}
.page-about .about-timeline__from {
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--gold);
  font-size: 14px !important;
  color: var(--ink) !important;
}

/* ---------- 合作生态（深色区） ---------- */
.page-about .about-eco {
  background: var(--navy-800);
  color: var(--on-dark);
}
.page-about .about-eco__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
.page-about .about-eco__text .h-lg {
  color: #fff;
}
.page-about .about-eco__text .prose p {
  color: var(--on-dark-dim);
}
.page-about .about-eco__figure {
  margin: 0;
}
.page-about .about-eco__figure .media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
}
.page-about .about-eco__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(.9) brightness(.86);
}

/* ---------- 下一步（浅色收尾） ---------- */
.page-about .about-next {
  background: var(--paper);
  color: var(--ink);
  padding-bottom: 88px;
}
.page-about .about-next__panel {
  position: relative;
  border-top: 2px solid var(--gold);
  background: #fff;
  border-left: 1px solid rgba(34, 49, 79, .16);
  border-right: 1px solid rgba(34, 49, 79, .16);
  border-bottom: 1px solid rgba(34, 49, 79, .16);
  padding: 32px 22px 36px;
}
.page-about .about-next__panel .h-lg {
  color: var(--ink);
}
.page-about .about-next__list {
  list-style: none;
  margin: 8px 0 32px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
.page-about .about-next__list li {
  padding-left: 18px;
  border-left: 2px solid rgba(34, 49, 79, .18);
  transition: border-color .2s var(--ease);
}
.page-about .about-next__list li:hover {
  border-left-color: var(--gold);
}
.page-about .about-next__list .h-md {
  color: var(--ink);
}
.page-about .about-next__list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
}
.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-next__actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 24px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .04em;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.page-about .about-next__actions .btn--gold {
  background: var(--gold);
  color: var(--ink);
}
.page-about .about-next__actions .btn--gold:hover {
  background: var(--gold-soft);
}
.page-about .about-next__actions .btn--ghost {
  background: transparent;
  border-color: rgba(34, 49, 79, .35);
  color: var(--ink);
}
.page-about .about-next__actions .btn--ghost:hover {
  border-color: var(--navy-700);
  color: var(--navy-700);
}

/* ---------- 焦点可见 ---------- */
.page-about a:focus-visible,
.page-about button:focus-visible,
.page-about [tabindex]:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-about .section {
    padding-top: 96px;
    padding-bottom: 96px;
  }
  .page-about .about-hero {
    padding-top: calc(var(--header-h) + 96px);
    padding-bottom: 96px;
    min-height: 76vh;
  }
  .page-about .about-origin {
    padding-top: 128px;
    padding-bottom: 128px;
  }
  .page-about .about-origin__split {
    grid-template-columns: minmax(0, 1.6fr) minmax(240px, 1fr);
    gap: 40px;
  }
  .page-about .about-day__beats {
    grid-template-columns: 1fr 1.25fr 1fr;
  }
  .page-about .about-day__beat {
    padding: 32px 26px;
  }
  .page-about .about-team__split {
    grid-template-columns: minmax(0, 1.4fr) minmax(260px, .9fr);
    gap: 48px;
  }
  .page-about .about-eco__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 1fr);
    gap: 48px;
    align-items: start;
  }
  .page-about .about-next__panel {
    padding: 48px 44px 52px;
  }
  .page-about .about-next__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-frame {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 32px;
  }
  .page-about .about-frame__rail {
    display: block;
    position: relative;
  }
  .page-about .about-frame__rail .annot-vertical {
    position: sticky;
    top: calc(var(--header-h-compact) + 40px);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: var(--font-note);
    font-size: 12px;
    letter-spacing: .3em;
    text-transform: uppercase;
    color: var(--slate);
    margin: 0;
    padding-top: 4px;
  }
  .page-about .about-hero__title {
    max-width: 18ch;
  }
  .page-about .about-lines__item {
    grid-template-columns: 88px 1fr;
    padding: 30px 0;
  }
  .page-about .about-lines__no {
    font-size: 46px;
  }
  .page-about .about-team__figure {
    margin-top: 64px;
  }
}

@media (min-width: 1280px) {
  .page-about .about-day__beat {
    padding: 40px 32px;
  }
  .page-about .about-next__panel {
    padding: 56px 56px 60px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__rail {
    animation: none;
    transform: none;
  }
  .page-about .about-timeline__panel {
    animation: none;
  }
  .page-about .about-fact__note {
    transition: none;
  }
  .page-about .about-hero__bg img {
    filter: saturate(.7) brightness(.7);
  }
}
</｜｜DSML｜｜ parameter>
</invoke>