.page-about {
  background:
    radial-gradient(circle at 86% 2%, rgba(20, 224, 177, .09), transparent 38%),
    radial-gradient(circle at 2% 26%, rgba(255, 106, 26, .10), transparent 42%),
    var(--c-ink);
  color: var(--c-body);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .aba-crumb {
  padding-top: 18px;
  padding-bottom: 2px;
}

/* ---------- 通用零件 ---------- */
.page-about .aba-head {
  margin-bottom: 26px;
}

.page-about .aba-head__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(23px, 5.6vw, 38px);
  line-height: 1.24;
  color: var(--c-paper);
  margin: 8px 0 10px;
  letter-spacing: .01em;
}

.page-about .aba-head__lede {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-gray);
}

.page-about .data-num {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--c-paper);
}

.page-about .data-num--xl { font-size: clamp(46px, 12vw, 82px); }
.page-about .data-num--lg { font-size: clamp(28px, 7.4vw, 42px); }
.page-about .data-num--md { font-size: clamp(24px, 6vw, 34px); }
.page-about .data-num--orange { color: var(--c-orange); }
.page-about .data-num--mint { color: var(--c-mint); }

.page-about .aba-unit {
  font-size: .42em;
  margin-left: 2px;
  letter-spacing: 0;
}

.page-about .aba-figure {
  margin: 0;
  border: 1px solid var(--c-line);
  background: var(--c-panel);
  padding: 8px;
  position: relative;
}

.page-about .aba-figure::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, transparent 48%, rgba(255, 106, 26, .35) 50%, transparent 54%);
  pointer-events: none;
}

.page-about .aba-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.03);
}

.page-about .aba-figure__cap {
  font-size: 12px;
  line-height: 1.7;
  color: var(--c-gray);
  padding: 10px 4px 4px;
  border-top: 1px solid var(--c-line-soft);
  margin-top: 8px;
}

/* ---------- 首屏 ---------- */
.page-about .aba-hero {
  position: relative;
  padding: 26px 0 54px;
}

.page-about .aba-hero::before {
  content: "";
  position: absolute;
  top: -30px;
  right: -80px;
  width: 240px;
  height: 240px;
  background: linear-gradient(135deg, rgba(255, 106, 26, .18), transparent 72%);
  transform: rotate(18deg);
  pointer-events: none;
}

.page-about .aba-hero__inner {
  position: relative;
  display: grid;
  gap: 32px;
}

.page-about .aba-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 7.6vw, 58px);
  line-height: 1.06;
  letter-spacing: -.015em;
  color: var(--c-paper);
  margin: 10px 0 18px;
  max-width: 18ch;
}

.page-about .aba-hero__title::after {
  content: "";
  display: block;
  width: 78px;
  height: 5px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--c-orange), var(--c-orange-lift));
  transform: skewX(-14deg);
}

.page-about .aba-hero__lede {
  margin: 0 0 14px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--c-body);
}

.page-about .aba-hero__lede--sub {
  font-size: 15px;
  color: var(--c-gray);
}

.page-about .aba-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-about .aba-hero__panel {
  border: 1px solid var(--c-line);
  background: linear-gradient(158deg, rgba(22, 25, 30, .96), rgba(11, 12, 14, .92));
  padding: 24px 20px 20px;
  display: grid;
  justify-items: center;
  gap: 16px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-about .aba-hero__panel-cap {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-mint);
  text-align: center;
}

.page-about .aba-radar {
  position: relative;
  width: 168px;
  height: 168px;
  border-radius: 50%;
  border: 1px solid var(--c-line);
  background: radial-gradient(circle at 50% 50%, rgba(20, 224, 177, .16), rgba(20, 224, 177, 0) 68%);
  overflow: hidden;
}

.page-about .aba-radar__ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid var(--c-line-soft);
  border-radius: 50%;
}

.page-about .aba-radar__ring--1 { width: 34%; height: 34%; }
.page-about .aba-radar__ring--2 { width: 62%; height: 62%; }
.page-about .aba-radar__ring--3 { width: 88%; height: 88%; }

.page-about .aba-radar__sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(20, 224, 177, .55), rgba(20, 224, 177, 0) 30%);
  animation: aba-sweep 6s linear infinite;
}

.page-about .aba-radar__dot {
  position: absolute;
  top: 30%;
  left: 66%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-mint);
  box-shadow: 0 0 0 4px rgba(20, 224, 177, .18), 0 0 12px rgba(20, 224, 177, .9);
  animation: aba-pulse 2.4s ease-in-out infinite;
}

@keyframes aba-sweep {
  to { transform: rotate(360deg); }
}

@keyframes aba-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

.page-about .aba-hero__stats {
  list-style: none;
  margin: 0;
  padding: 18px 0 0;
  width: 100%;
  border-top: 1px solid var(--c-line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 12px;
}

.page-about .aba-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-about .aba-hero__stat-label {
  font-size: 12px;
  line-height: 1.55;
  color: var(--c-gray);
}

/* ---------- 时间轴 ---------- */
.page-about .aba-story {
  padding: 54px 0;
  border-top: 1px solid var(--c-line-soft);
}

.page-about .aba-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.page-about .aba-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 16px;
}

.page-about .aba-timeline__item::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 42px;
  bottom: -24px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-line), rgba(20, 224, 177, .35));
}

.page-about .aba-timeline__item:last-child::before {
  content: none;
}

.page-about .aba-timeline__node {
  justify-self: center;
  margin-top: 26px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-ink);
  border: 2px solid var(--c-orange);
  box-shadow: 0 0 0 4px rgba(255, 106, 26, .12);
}

.page-about .aba-timeline__card {
  border: 1px solid var(--c-line);
  background: linear-gradient(150deg, rgba(22, 25, 30, .95), rgba(11, 12, 14, .9));
  padding: 18px 18px 20px;
  transition: border-color .18s ease;
}

.page-about .aba-timeline__card:hover {
  border-color: var(--c-mint);
}

.page-about .aba-timeline__ver {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-gray);
}

.page-about .aba-timeline__ver b {
  color: var(--c-orange);
  font-size: 15px;
}

.page-about .aba-timeline__card-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.35;
  color: var(--c-paper);
}

.page-about .aba-timeline__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-body);
}

/* ---------- 团队 ---------- */
.page-about .aba-team {
  padding: 54px 0;
  border-top: 1px solid var(--c-line-soft);
}

.page-about .aba-team__grid {
  display: grid;
  gap: 26px;
}

.page-about .aba-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .aba-role {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  border: 1px solid var(--c-line);
  background: var(--c-panel);
  padding: 18px;
  transition: border-color .18s ease;
}

.page-about .aba-role:hover {
  border-color: var(--c-orange);
}

.page-about .aba-role__num {
  flex: 0 0 auto;
  min-width: 42px;
  padding-top: 2px;
}

.page-about .aba-role__body {
  flex: 1 1 auto;
  min-width: 0;
}

.page-about .aba-role__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  color: var(--c-paper);
}

.page-about .aba-role__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-body);
}

.page-about .aba-role__link {
  display: inline-block;
  font-size: 13px;
  color: var(--c-mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(20, 224, 177, .45);
  padding-bottom: 2px;
}

.page-about .aba-role__link:hover {
  color: var(--c-orange);
  border-bottom-color: rgba(255, 106, 26, .6);
}

/* ---------- 联赛覆盖 ---------- */
.page-about .aba-coverage {
  padding: 54px 0;
  border-top: 1px solid var(--c-line-soft);
}

.page-about .aba-coverage__grid {
  display: grid;
  gap: 14px;
}

.page-about .aba-coverage__card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-line);
  background: var(--c-panel);
  padding: 20px 18px 22px;
}

.page-about .aba-coverage__card::after {
  content: "";
  position: absolute;
  right: -46px;
  bottom: -46px;
  width: 124px;
  height: 124px;
  border-radius: 50%;
  border: 1px solid rgba(20, 224, 177, .2);
  pointer-events: none;
}

.page-about .aba-coverage__card--top { border-top: 3px solid var(--c-orange); }
.page-about .aba-coverage__card--cup { border-top: 3px solid var(--c-orange-lift); }
.page-about .aba-coverage__card--youth { border-top: 3px solid var(--c-mint); }

.page-about .aba-coverage__name {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  color: var(--c-paper);
}

.page-about .aba-coverage__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-gray);
}

.page-about .aba-coverage__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-about .aba-coverage__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-body);
}

.page-about .aba-coverage__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--c-mint);
  transform: rotate(45deg);
}

.page-about .aba-figure--board {
  margin-top: 22px;
}

.page-about .aba-browse {
  margin-top: 24px;
  border: 1px solid rgba(20, 224, 177, .3);
  background: rgba(14, 47, 44, .55);
  padding: 20px 18px;
}

.page-about .aba-browse__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  color: var(--c-paper);
}

.page-about .aba-browse__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .aba-browse__list li {
  display: grid;
  gap: 4px;
  padding-left: 14px;
  border-left: 2px solid var(--c-mint);
}

.page-about .aba-browse__list strong {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  color: var(--c-paper);
}

.page-about .aba-browse__list span {
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-body);
}

/* ---------- 协作伙伴 ---------- */
.page-about .aba-partners {
  padding: 54px 0;
  border-top: 1px solid var(--c-line-soft);
}

.page-about .aba-partners__inner {
  display: grid;
  gap: 24px;
}

.page-about .aba-partners__lede {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--c-body);
}

.page-about .aba-partners__text .btn {
  margin-top: 6px;
}

.page-about .aba-partners__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .aba-partners__stats li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--c-line);
  background: linear-gradient(140deg, rgba(255, 106, 26, .12), rgba(11, 12, 14, .92));
  padding: 18px;
}

.page-about .aba-partners__stat-label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-gray);
}

/* ---------- 里程碑 ---------- */
.page-about .aba-milestones {
  padding: 54px 0;
  border-top: 1px solid var(--c-line-soft);
}

.page-about .aba-figure--banner {
  margin-bottom: 22px;
}

.page-about .aba-awards {
  display: grid;
  gap: 12px;
}

.page-about .aba-award {
  border: 1px solid var(--c-line);
  background: var(--c-panel);
  padding: 0 16px;
}

.page-about .aba-award > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 0;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  line-height: 1.5;
  color: var(--c-paper);
  list-style: none;
}

.page-about .aba-award > summary::-webkit-details-marker {
  display: none;
}

.page-about .aba-award > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-mint);
}

.page-about .aba-award[open] > summary::after {
  content: "−";
}

.page-about .aba-award[open] {
  border-color: rgba(20, 224, 177, .45);
}

.page-about .aba-award .disclosure__panel p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.82;
  color: var(--c-body);
}

.page-about .aba-track {
  list-style: none;
  margin: 24px 0 0;
  padding: 0 0 10px;
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-about .aba-track li {
  flex: 0 0 auto;
  min-width: 188px;
  scroll-snap-align: start;
  display: grid;
  gap: 8px;
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-orange);
  background: var(--c-panel);
  padding: 14px 16px;
}

.page-about .aba-track__year {
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: .02em;
  color: var(--c-orange);
}

.page-about .aba-track__label {
  font-size: 13px;
  line-height: 1.62;
  color: var(--c-body);
}

/* ---------- 接下来的赛季 ---------- */
.page-about .aba-next {
  padding: 54px 0 64px;
  border-top: 1px solid var(--c-line-soft);
}

.page-about .aba-next__grid {
  display: grid;
  gap: 14px;
}

.page-about .aba-next__card {
  border: 1px solid var(--c-line);
  background: linear-gradient(160deg, rgba(22, 25, 30, .96), rgba(11, 12, 14, .92));
  padding: 20px 18px;
}

.page-about .aba-next__card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-about .aba-next__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-body);
}

.page-about .aba-next__cta {
  margin-top: 28px;
  border: 1px solid var(--c-line);
  background:
    radial-gradient(circle at 4% 0%, rgba(255, 106, 26, .2), transparent 58%),
    var(--c-panel);
  padding: 22px 18px;
  display: grid;
  gap: 16px;
}

.page-about .aba-next__cta-text {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-paper);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .aba-hero {
    padding: 36px 0 64px;
  }

  .page-about .aba-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

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

  .page-about .aba-coverage__grid > :nth-child(3) {
    grid-column: span 2;
  }

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

  .page-about .aba-award > summary {
    font-size: 16px;
  }
}

@media (min-width: 1000px) {
  .page-about .aba-hero__inner {
    grid-template-columns: minmax(0, 1.24fr) minmax(300px, .86fr);
    align-items: start;
    gap: 44px;
  }

  .page-about .aba-hero__panel {
    padding: 30px 26px 24px;
  }

  .page-about .aba-team__grid {
    grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr);
    gap: 32px;
    align-items: start;
  }

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

  .page-about .aba-coverage__grid > :nth-child(3) {
    grid-column: auto;
  }

  .page-about .aba-partners__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(240px, .5fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .aba-browse__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .aba-track {
    overflow: visible;
    flex-wrap: wrap;
    padding-bottom: 0;
  }

  .page-about .aba-track li {
    flex: 1 1 0;
    min-width: 0;
  }

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

  .page-about .aba-next__cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 26px 24px;
  }

  .page-about .aba-timeline__card {
    padding: 22px 24px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .aba-radar__sweep,
  .page-about .aba-radar__dot {
    animation: none;
  }

  .page-about .aba-timeline__card,
  .page-about .aba-role {
    transition: none;
  }
}