.page-about {
  padding-bottom: 30px;
}

/* ---------- 通用排版 ---------- */
.page-about .about-h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 5.2vw, 50px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  color: var(--paper);
  max-width: 24ch;
}

.page-about .about-lead {
  margin-top: 18px;
  max-width: 64ch;
}

.page-about .prose {
  max-width: 68ch;
}

.page-about .media__img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 面包屑微调 ---------- */
.page-about .breadcrumb {
  padding-top: 30px;
  padding-bottom: 10px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 20px 0 62px;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: 42%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--grn));
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 9.2vw, 96px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin: 18px 0 0;
  color: var(--paper);
  max-width: 16ch;
}

.page-about .about-hero__hl {
  color: var(--grn);
  text-shadow: 0 0 22px rgba(184, 255, 60, 0.3);
}

.page-about .about-hero__lede {
  margin: 26px 0 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--gray);
}

.page-about .about-stats {
  list-style: none;
  margin: 42px 0 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-about .about-stats__item {
  background: var(--ink);
  padding: 18px 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .about-stats__num {
  font-size: clamp(22px, 4.6vw, 30px);
  line-height: 1;
}

.page-about .about-stats__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--gray-dim);
}

/* ---------- 赛季轨道 ---------- */
.page-about .about-track .about-lead {
  color: var(--gray);
}

.page-about .track {
  list-style: none;
  margin: 46px 0 0;
  padding: 0 0 0 28px;
  position: relative;
  max-width: 900px;
}

.page-about .track::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(184, 255, 60, 0.42) 0 6px,
    transparent 6px 14px
  );
}

.page-about .track__node {
  position: relative;
  margin: 0 0 34px;
  padding: 0;
}

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

.page-about .track__dot {
  position: absolute;
  left: -28px;
  top: 4px;
  width: 12px;
  height: 12px;
  background: var(--ink);
  border: 2px solid var(--grn);
  transform: rotate(45deg);
  transition: background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-about .track__node:hover .track__dot,
.page-about .track__node:focus-within .track__dot {
  background: var(--grn);
  box-shadow: 0 0 14px rgba(184, 255, 60, 0.5);
}

.page-about .track__node--now .track__dot {
  background: var(--grn);
  box-shadow: 0 0 16px rgba(184, 255, 60, 0.55);
}

.page-about .track__year {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--grn);
  margin: 0 0 8px;
  text-transform: uppercase;
}

.page-about .track__title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
  margin: 0;
}

.page-about .track__desc {
  margin: 9px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
  max-width: 60ch;
}

.page-about .track__keys {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
}

.page-about .track__keys .tag {
  font-size: 12px;
}

/* ---------- 内容生产 ---------- */
.page-about .about-flow__grid {
  display: grid;
  gap: 30px;
}

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

.page-about .about-flow__text .prose {
  margin-top: 18px;
  color: var(--gray);
}

.page-about .flow-list {
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .flow-list__item {
  position: relative;
  background: var(--ink);
  padding: 26px 20px 30px;
}

.page-about .flow-list__item::after {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  width: 32px;
  height: 2px;
  background: var(--grn);
}

.page-about .flow-list__idx {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--gray-dim);
}

.page-about .flow-list__title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
  margin: 12px 0 0;
}

.page-about .flow-list__desc {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gray);
}

.page-about .flow-clock {
  margin-top: 34px;
  --cut: 12px;
  --cut-pad: 26px 22px;
  --cut-edge: var(--line);
  --cut-bg: var(--ink-2);
}

.page-about .flow-clock__label {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--grn);
  margin: 0;
}

.page-about .flow-clock__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .flow-clock__list li {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.65;
  color: var(--gray);
}

.page-about .flow-clock__list .num {
  font-size: 20px;
  color: var(--ice);
}

/* ---------- 覆盖版图 ---------- */
.page-about .about-cover .about-lead {
  color: var(--gray);
}

.page-about .cover-grid {
  margin-top: 44px;
  display: grid;
  gap: 28px;
}

.page-about .dotmap {
  position: relative;
  aspect-ratio: 16 / 9;
  min-height: 220px;
  background-color: var(--ink);
  background-image: radial-gradient(circle, rgba(198, 207, 200, 0.22) 1.4px, transparent 1.5px);
  background-size: 20px 20px;
  border: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-about .dotmap__hot {
  position: absolute;
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border-radius: 50%;
  background: var(--grn);
  box-shadow: 0 0 0 5px rgba(184, 255, 60, 0.13);
  cursor: help;
}

.page-about .dotmap__hot:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 4px;
}

.page-about .dotmap__tip {
  position: absolute;
  left: 50%;
  bottom: 150%;
  transform: translateX(-50%);
  width: 190px;
  padding: 10px 12px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--gray);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s var(--ease), visibility 0.18s var(--ease);
  z-index: 4;
}

.page-about .dotmap__hot:hover .dotmap__tip,
.page-about .dotmap__hot:focus-visible .dotmap__tip {
  opacity: 1;
  visibility: visible;
}

.page-about .dotmap__legend {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .dotmap__legend li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--gray-dim);
}

.page-about .dotmap__legend li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--grn);
  transform: rotate(45deg);
}

.page-about .dotmap__legend strong {
  color: var(--gray);
  font-weight: 700;
}

.page-about .cover-facts {
  --cut: 12px;
  --cut-pad: 26px 22px;
  --cut-edge: var(--line);
  --cut-bg: var(--ink);
}

.page-about .cover-facts__title {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--ice);
  margin: 0;
}

.page-about .cover-facts__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .cover-facts__list li {
  display: grid;
  gap: 5px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .cover-facts__list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .cover-facts__num {
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .cover-facts__num em {
  font-style: normal;
  font-size: 13px;
  color: var(--grn);
  margin-left: 2px;
}

.page-about .cover-facts__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--gray-dim);
}

/* ---------- 数据标注（纸白） ---------- */
.page-about .about-data .eyebrow {
  color: var(--grn-deep);
}

.page-about .about-data .about-h2 {
  color: var(--paper-ink);
}

.page-about .data-grid {
  margin-top: 38px;
  display: grid;
  gap: 30px;
}

.page-about .about-data .prose {
  color: #2A3230;
}

.page-about .about-data .data-grid__main .prose + .prose {
  margin-top: 18px;
}

.page-about .data-facts {
  margin: 0;
  display: grid;
  gap: 1px;
  background: rgba(16, 18, 16, 0.14);
  border: 1px solid rgba(16, 18, 16, 0.16);
}

.page-about .data-facts__row {
  background: var(--paper-2);
  padding: 16px 18px 18px;
  display: grid;
  gap: 5px;
}

.page-about .data-facts dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: #55605A;
}

.page-about .data-facts dd {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.65;
  color: var(--paper-ink);
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  list-style: none;
  margin: 40px 0 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-about .team-card {
  background: var(--ink);
  padding: 26px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background 0.18s var(--ease);
}

.page-about .team-card:hover {
  background: var(--ink-2);
}

.page-about .team-card__idx {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--grn);
}

.page-about .team-card__role {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--paper);
  margin: 0;
}

.page-about .team-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

.page-about .team-card__count {
  margin-top: auto;
  padding-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ice);
}

/* ---------- 合作生态 ---------- */
.page-about .eco-grid {
  margin-top: 40px;
  display: grid;
  gap: 30px;
}

.page-about .eco-grid__text .prose {
  color: var(--gray);
}

.page-about .eco-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .eco-list li {
  padding-left: 16px;
  border-left: 2px solid var(--org);
  font-size: 14.8px;
  line-height: 1.8;
  color: var(--gray);
}

.page-about .eco-list strong {
  color: var(--paper);
  font-weight: 800;
}

.page-about .eco-figure {
  margin: 0;
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  padding-bottom: 20px;
}

.page-about .next-grid {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .next-card {
  --cut: 12px;
  --cut-pad: 24px 20px;
  --cut-edge: var(--line);
  --cut-bg: var(--ink-2);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.18s var(--ease), --cut-edge 0.18s var(--ease);
}

.page-about .next-card:hover {
  transform: translateY(-2px);
}

.page-about .next-card__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--paper);
  margin: 0;
}

.page-about .next-card__desc {
  margin: 0;
  flex: 1;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

.page-about .next-card .btn {
  align-self: flex-start;
}

/* ---------- 断点：平板 ---------- */
@media (min-width: 700px) {
  .page-about .flow-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .flow-clock__list {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

  .page-about .dotmap__legend {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 26px;
  }

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

/* ---------- 断点：桌面 ---------- */
@media (min-width: 960px) {
  .page-about .about-hero {
    padding: 32px 0 84px;
  }

  .page-about .about-flow__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-about .about-flow__text {
    padding-top: 12px;
  }

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

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

  .page-about .cover-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .data-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 54px;
  }

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

  .page-about .eco-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
    gap: 50px;
    align-items: end;
  }

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

  .page-about .track {
    padding-left: 34px;
  }

  .page-about .track__dot {
    left: -34px;
  }

  .page-about .track__node {
    padding-left: 96px;
  }

  .page-about .track__year {
    position: absolute;
    left: 0;
    top: 2px;
    width: 84px;
    margin: 0;
  }

  .page-about .track__keys {
    max-height: 0;
    margin-top: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.28s var(--ease), opacity 0.24s var(--ease), margin-top 0.28s var(--ease);
  }

  .page-about .track__node:hover .track__keys,
  .page-about .track__node:focus-within .track__keys {
    max-height: 180px;
    margin-top: 14px;
    opacity: 1;
  }
}

/* ---------- 窄屏：点阵提示收起 ---------- */
@media (max-width: 679px) {
  .page-about .dotmap__tip {
    display: none;
  }

  .page-about .dotmap {
    aspect-ratio: 4 / 3;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .track__keys,
  .page-about .track__dot,
  .page-about .dotmap__tip,
  .page-about .next-card,
  .page-about .team-card {
    transition: none;
  }
}
<<<END>>>