.page-about {
  --ab-rail: 150px;
  --ab-gap: clamp(20px, 3vw, 40px);
  color: var(--bone-50);
}

/* ============ 面包屑 ============ */
.page-about .ab-crumbs { padding-top: 18px; }
.page-about .crumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.page-about .crumb-link {
  color: var(--rock-500);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-about .crumb-link:hover,
.page-about .crumb-link:focus-visible { color: var(--electric-500); border-bottom-color: var(--electric-500); }
.page-about .crumb-link[aria-current="page"] { color: var(--bone-50); }
.page-about .crumb-item + .crumb-item::before { content: "/"; margin-right: 8px; color: var(--line-strong); }

/* ============ 首屏框景 ============ */
.page-about .ab-hero { padding-block: clamp(20px, 3vw, 36px) clamp(36px, 5vw, 64px); }
.page-about .ab-frame {
  position: relative;
  border: 1px solid var(--line-strong);
  padding: clamp(34px, 4.6vw, 58px) clamp(18px, 3.2vw, 46px) clamp(22px, 3vw, 38px);
  background:
    repeating-linear-gradient(90deg, rgba(138, 143, 136, 0.11) 0 1px, transparent 1px 72px),
    linear-gradient(178deg, rgba(15, 36, 26, 0.95), rgba(8, 21, 15, 0.98));
}
.page-about .ab-frame__label {
  position: absolute;
  top: -1px;
  left: -1px;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  background: var(--pitch-950);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--rock-500);
}
.page-about .ab-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ab-gap);
  padding-top: clamp(14px, 2vw, 24px);
}
.page-about .ab-hero .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber-signal);
}
.page-about .ab-hero .page-hero__title {
  margin: 0 0 16px;
  font-size: clamp(30px, 5vw, 62px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 900;
}
.page-about .ab-hero .page-hero__sub {
  margin: 0;
  max-width: 38em;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.9;
  color: rgba(243, 239, 230, 0.86);
}
.page-about .ab-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .ab-stats__value {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--bone-50);
}
.page-about .ab-stats__value--signal { color: var(--amber-signal); }
.page-about .ab-stats__label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--rock-500);
}

/* 章节索引 */
.page-about .ab-toc {
  margin-top: clamp(26px, 3.4vw, 42px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.page-about .ab-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rock-500);
}
.page-about .toc-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .toc-link {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--bone-50);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}
.page-about .toc-link:hover,
.page-about .toc-link:focus-visible {
  border-color: var(--electric-500);
  color: var(--electric-500);
  transform: translateY(-2px);
}
.page-about .toc-link[aria-current="true"] {
  border-color: var(--amber-signal);
  color: var(--amber-signal);
}

/* ============ 章节通用 ============ */
.page-about .section { padding-block: clamp(48px, 6vw, 88px); }
.page-about .section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0 0 clamp(24px, 3.2vw, 40px);
  padding-left: 16px;
  border-left: 1px solid var(--line-strong);
}
.page-about .section-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--rock-500);
}
.page-about .section-title {
  margin: 0 0 10px;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  font-weight: 900;
}
.page-about .section-sub {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(243, 239, 230, 0.72);
}
.page-about .prose p {
  margin: 0 0 16px;
  max-width: 38em;
  font-size: var(--fs-body);
  line-height: 1.9;
  color: rgba(243, 239, 230, 0.88);
}
.page-about .prose p:last-child { margin-bottom: 0; }
.page-about .link {
  color: var(--electric-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 198, 255, 0.45);
}
.page-about .link:hover,
.page-about .link:focus-visible { border-bottom-color: var(--electric-500); }

/* ============ 非对称分栏 ============ */
.page-about .ab-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ab-gap);
}
.page-about .ab-split__media { display: grid; gap: 20px; }

/* ============ 图片容器 ============ */
.page-about .ab-media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--pitch-850);
  overflow: hidden;
}
.page-about .ab-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .ab-media--hero img { aspect-ratio: 3 / 2; }
.page-about .ab-media--portrait img { aspect-ratio: 4 / 3; }
.page-about .ab-media__caption {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--rock-500);
}

/* ============ 赛季时间轴 ============ */
.page-about .ab-timeline__list { margin: 0; padding: 0; list-style: none; }
.page-about .ab-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: clamp(22px, 3vw, 34px) 0;
  border-top: 1px solid var(--line);
}
.page-about .ab-stage:last-child { border-bottom: 1px solid var(--line); }
.page-about .ab-stage::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 52px;
  height: 3px;
  background: linear-gradient(90deg, var(--moss-600), var(--clay-500));
  transform: skewX(-34deg);
  transform-origin: left top;
}
.page-about .ab-stage__year {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--rock-500);
}
.page-about .ab-stage__year b {
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 700;
  color: var(--bone-50);
  font-variant-numeric: tabular-nums;
}
.page-about .ab-stage__title {
  margin: 0 0 8px;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--bone-50);
}
.page-about .ab-stage__text {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(243, 239, 230, 0.82);
}

/* ============ 五条内容主线 ============ */
.page-about .ab-lines {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-about .ab-line {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px 20px;
  padding: 20px 8px;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.page-about .ab-line:hover {
  background: rgba(52, 198, 255, 0.06);
  box-shadow: inset 2px 0 0 var(--electric-500);
}
.page-about .ab-line__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rock-500);
}
.page-about .ab-line__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--bone-50);
}
.page-about .ab-line__desc {
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(243, 239, 230, 0.8);
}
.page-about .ab-line__freq {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--clay-500);
}

/* ============ 数据流程 ============ */
.page-about .ab-flow {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 20px;
}
.page-about .ab-flow__item {
  position: relative;
  padding-left: 38px;
}
.page-about .ab-flow__num {
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border: 1px solid var(--electric-500);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--electric-500);
}
.page-about .ab-flow__item::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 30px;
  bottom: -20px;
  width: 1px;
  background: var(--line);
}
.page-about .ab-flow__item:last-child::after { display: none; }
.page-about .ab-flow__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--bone-50);
}
.page-about .ab-flow__text {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(243, 239, 230, 0.8);
}

/* 数据面板 */
.page-about .ab-panel { border: 1px solid var(--line-strong); background: var(--pitch-850); }
.page-about .ab-panel .data-panel__head {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: baseline;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}
.page-about .ab-panel .data-panel__title { margin: 0; font-size: 15px; font-weight: 700; letter-spacing: 0.02em; }
.page-about .ab-panel .data-panel__stamp {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--amber-signal);
}
.page-about .ab-panel .data-panel__body { padding: 18px 16px; }
.page-about .ab-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .ab-metrics__value {
  display: block;
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--bone-50);
}
.page-about .ab-metrics__label {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--rock-500);
}
.page-about .ab-panel .data-panel__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
}
.page-about .ab-legend {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--rock-500);
}
.page-about .ab-panel .data-panel__source {
  margin: 0;
  padding: 12px 16px 16px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--rock-500);
  border-top: 1px solid var(--line);
}

/* ============ 球队档案 ============ */
.page-about .ab-archive__action { margin: clamp(24px, 3vw, 36px) 0 0; }

/* ============ 认证与合作 ============ */
.page-about .ab-trust {
  background: linear-gradient(102deg, rgba(63, 107, 78, 0.24), rgba(182, 114, 76, 0.16) 58%, rgba(8, 21, 15, 0) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.page-about .ab-facts { margin: 0; border-top: 1px solid var(--line); }
.page-about .ab-fact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.page-about .ab-fact__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--clay-500);
}
.page-about .ab-fact__value {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.88;
  color: rgba(243, 239, 230, 0.88);
}

/* ============ 收束动作 ============ */
.page-about .ab-cta { padding-block: clamp(44px, 5vw, 76px); }
.page-about .ab-cta__box {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: clamp(22px, 3vw, 38px);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--amber-signal);
  background: var(--pitch-800);
}
.page-about .ab-cta__title {
  margin: 0 0 10px;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 900;
  letter-spacing: -0.01em;
}
.page-about .ab-cta__sub {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.88;
  color: rgba(243, 239, 230, 0.82);
}
.page-about .ab-cta__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.page-about .ab-cta__back { margin: 18px 0 0; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; }

/* ============ 滚动显现（渐进增强） ============ */
.has-js .page-about [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}
.has-js .page-about [data-reveal].is-visible { opacity: 1; transform: none; }

/* ============ 响应式 ============ */
@media (min-width: 720px) {
  .page-about .section-head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(16px, 2.6vw, 30px);
    align-items: start;
  }
  .page-about .ab-metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-about .ab-fact {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 8px 28px;
    align-items: baseline;
  }
  .page-about .ab-line {
    grid-template-columns: 56px minmax(0, 0.9fr) minmax(0, 2fr) auto;
    align-items: baseline;
    padding: 22px 12px;
  }
}

@media (min-width: 920px) {
  .page-about .ab-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-about .ab-hero__aside {
    padding-left: var(--ab-gap);
    border-left: 1px solid var(--line);
  }
  .page-about .ab-split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }
  .page-about .ab-split--reverse { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); }
  .page-about .ab-split--reverse .ab-split__media { order: 2; }
  .page-about .ab-stage {
    grid-template-columns: var(--ab-rail) minmax(0, 1fr);
    gap: var(--ab-gap);
    align-items: start;
  }
  .page-about .ab-stage__year { flex-direction: column; gap: 4px; }
  .page-about .ab-cta__box {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: clamp(20px, 3vw, 44px);
  }
}

@media (min-width: 1180px) {
  .page-about .ab-split { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .page-about .ab-split--reverse { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
}

@media (max-width: 600px) {
  .page-about .ab-stats { grid-template-columns: 1fr; }
  .page-about .ab-stage { padding-inline: 0; }
  .page-about .ab-cta__actions .btn { width: 100%; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .toc-link,
  .page-about .ab-line,
  .page-about .ab-media img { transition: none; }
  .page-about .toc-link:hover { transform: none; }
  .has-js .page-about [data-reveal] { opacity: 1; transform: none; transition: none; }
}
<<<END>>>