.page-about {
  --about-shadow: 5px 5px 0 var(--ink);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 页头 ---------- */
.page-about .about-head {
  padding-top: clamp(26px, 5vw, 56px);
  padding-bottom: clamp(26px, 4vw, 46px);
}

.page-about .about-head .breadcrumb {
  margin: 0 0 clamp(18px, 3vw, 30px);
}

.page-about .about-head__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--jade-deep);
}

.page-about .about-head__title {
  margin: 0 0 20px;
  font-size: clamp(40px, 8vw, 84px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.03em;
}

.page-about .about-head__lede {
  margin: 0 0 22px;
  max-width: 44ch;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.8;
}

.page-about .about-head__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

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

.page-about .about-head__jump a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border: var(--bd-thin);
  border-radius: var(--pill);
  background: var(--white);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}

.page-about .about-head__jump a:hover,
.page-about .about-head__jump a:focus-visible {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-2px);
}

.page-about .about-head__jump a span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  opacity: .72;
}

/* ---------- 章节外壳 ---------- */
.page-about .sec {
  padding: clamp(40px, 6vw, 76px) 0;
  border-top: var(--bd-thin);
}

.page-about .sec--paper2 {
  background: var(--paper-2);
}

.page-about .sec-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: clamp(12px, 2.5vw, 32px);
  margin-bottom: clamp(24px, 4vw, 42px);
  padding-bottom: clamp(12px, 2vw, 20px);
  border-bottom: var(--bd);
}

.page-about .sec-head__text {
  min-width: 0;
}

.page-about .sec-head__eyebrow {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--jade-deep);
}

.page-about .sec-head__title {
  margin: 0;
  font-size: clamp(23px, 4vw, 42px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.02em;
}

.page-about .sec-head__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(32px, 9vw, 104px);
  font-weight: 700;
  line-height: .78;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 2px var(--ink);
  user-select: none;
}

@supports not (-webkit-text-stroke: 2px black) {
  .page-about .sec-head__num {
    color: var(--ink);
  }
}

/* ---------- 01 展签 ---------- */
.page-about .signboard {
  display: grid;
  border: var(--bd);
  border-radius: var(--radius);
  box-shadow: var(--about-shadow);
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}

.page-about .signboard__body {
  padding: clamp(24px, 4vw, 46px);
}

.page-about .signboard__label {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--sand);
}

.page-about .signboard__row + .signboard__row {
  margin-top: 20px;
  padding-top: 20px;
  border-top: var(--hairline-light);
}

.page-about .signboard__row h3 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .03em;
  color: var(--jade);
}

.page-about .signboard__row p {
  margin: 0;
  max-width: 42ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 239, 230, .85);
}

.page-about .signboard__media {
  position: relative;
  margin: 0;
  min-height: 220px;
  background: var(--night);
}

.page-about .signboard__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .signboard__media .media__caption {
  position: absolute;
  inset: auto 0 0 0;
  margin: 0;
  padding: 10px 14px;
  background: rgba(11, 20, 24, .84);
  color: var(--paper);
  font-size: 12px;
  line-height: 1.55;
}

@media (min-width: 880px) {
  .page-about .signboard {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  }

  .page-about .signboard__media {
    min-height: 100%;
  }
}

/* ---------- 02 时间轴 ---------- */
.page-about .timeline {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .timeline__item {
  position: relative;
  margin-left: 14px;
  padding: 0 0 clamp(22px, 3.5vw, 40px) clamp(24px, 4vw, 52px);
  border-left: var(--bd-thin);
}

.page-about .timeline__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 5px;
  width: 16px;
  height: 16px;
  box-sizing: border-box;
  border: var(--bd-thin);
  border-radius: 50%;
  background: var(--jade);
}

.page-about .timeline__season {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 12px;
  border: 2px solid var(--ink);
  border-radius: var(--pill);
  background: var(--sand-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}

.page-about .timeline__body .accordion__item {
  border: 0;
}

.page-about .timeline__trigger {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.page-about .timeline__title {
  min-width: 0;
  font-size: clamp(17px, 2.4vw, 24px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
}

.page-about .timeline__hint {
  flex: none;
  padding-bottom: 2px;
  border-bottom: 2px solid currentColor;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--jade-deep);
}

.page-about .timeline__trigger[aria-expanded="true"] .timeline__hint {
  color: var(--sand);
}

.page-about .timeline__body .accordion__panel p {
  margin: 0;
  max-width: 58ch;
  padding-top: 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate);
}

/* ---------- 03 团队数据条 ---------- */
.page-about .team {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

@media (min-width: 900px) {
  .page-about .team {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    align-items: start;
  }
}

.page-about .team__big {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 10px;
}

.page-about .team__big .num {
  font-family: var(--font-mono);
  font-size: clamp(56px, 9vw, 88px);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -.04em;
  color: var(--jade-deep);
}

.page-about .team__unit {
  font-size: 18px;
  font-weight: 800;
}

.page-about .team__big-label {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate);
}

.page-about .team__foot {
  margin: 0;
  padding: 14px 16px;
  border: var(--bd-thin);
  border-radius: 12px;
  background: var(--sand-soft);
  font-size: 14px;
  line-height: 1.72;
}

.page-about .team__foot .num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
}

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

.page-about .team__bar {
  padding: 14px 16px;
  border: var(--bd-thin);
  border-radius: 12px;
  background: var(--white);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}

.page-about .team__bar:hover,
.page-about .team__bar:focus-within {
  transform: translateX(4px);
  box-shadow: var(--about-shadow);
}

.page-about .team__bar-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.page-about .team__role {
  font-size: 15px;
  font-weight: 800;
}

.page-about .team__count {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--jade-deep);
}

.page-about .team__bar .data-bar__fill {
  background: var(--jade);
}

.page-about .team__note {
  max-height: 0;
  margin: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
  transition: max-height .26s var(--ease), opacity .26s var(--ease), margin-top .26s var(--ease);
}

.page-about .team__bar:hover .team__note,
.page-about .team__bar:focus-within .team__note {
  max-height: 96px;
  margin-top: 9px;
  opacity: 1;
}

.page-about .team__scope {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding-top: 14px;
  border-top: var(--hairline);
  max-width: 62ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 04 流程 ---------- */
.page-about .steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 760px) {
  .page-about .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .step {
  padding: 20px 18px 22px;
  border: var(--bd-thin);
  border-radius: 12px;
  background: var(--paper-2);
}

.page-about .step__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--jade-deep);
}

.page-about .step__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
}

.page-about .step__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate);
}

.page-about .flow__note {
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding-left: 16px;
  border-left: var(--bd-thin);
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 05 球迷组织网络 ---------- */
.page-about .network {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

@media (min-width: 900px) {
  .page-about .network {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-about .network__map {
  padding: clamp(14px, 2.4vw, 26px);
  border: var(--bd);
  border-radius: var(--radius);
  background: var(--night);
  box-shadow: var(--about-shadow);
}

.page-about .map-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .map-svg__outline {
  fill: rgba(18, 194, 160, .08);
  stroke: rgba(244, 239, 230, .3);
  stroke-width: 2;
  stroke-dasharray: 7 6;
}

.page-about .map-svg__grid circle {
  fill: rgba(244, 239, 230, .3);
}

.page-about .map-dot__pt {
  fill: var(--jade);
  stroke: var(--ink);
  stroke-width: 2;
  transform-box: fill-box;
  transform-origin: center;
  transition: transform .2s var(--ease), fill .2s var(--ease);
}

.page-about .map-dot:hover .map-dot__pt {
  fill: var(--sand);
  transform: scale(1.45);
}

.page-about .map-dot__label {
  fill: rgba(244, 239, 230, .88);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  text-anchor: middle;
}

.page-about .map-dot:hover .map-dot__label {
  fill: var(--sand);
}

.page-about .network__map-note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(244, 239, 230, .65);
}

.page-about .network__text > p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.78;
}

.page-about .network__stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 6px;
}

.page-about .network__stat .num {
  font-family: var(--font-mono);
  font-size: clamp(40px, 7vw, 68px);
  font-weight: 700;
  line-height: .95;
  letter-spacing: -.04em;
  color: var(--jade-deep);
}

.page-about .network__stat-unit {
  font-size: 14px;
  font-weight: 800;
}

.page-about .network__stat-label {
  margin: 0 0 20px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

.page-about .network__cities {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-about .network__cities li {
  padding: 4px 11px;
  border: 1px solid rgba(11, 20, 24, .2);
  border-radius: var(--pill);
  background: var(--paper-2);
  font-size: 13px;
}

.page-about .network__photo {
  position: relative;
  margin: clamp(24px, 4vw, 40px) 0 0;
  border: var(--bd);
  border-radius: var(--radius);
  box-shadow: var(--about-shadow);
  overflow: hidden;
  background: var(--night);
}

.page-about .network__photo img {
  display: block;
  width: 100%;
  height: clamp(180px, 30vw, 380px);
  object-fit: cover;
}

.page-about .network__photo .media__caption {
  margin: 0;
  padding: 10px 14px;
  border-top: var(--bd-thin);
  background: var(--paper-2);
  font-size: 12px;
  line-height: 1.55;
  color: var(--slate);
}

/* ---------- 06 更正与协作 ---------- */
.page-about .fix {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

@media (min-width: 900px) {
  .page-about .fix {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    align-items: start;
  }
}

.page-about .fix__media {
  margin: 0;
  border: var(--bd);
  border-radius: var(--radius);
  box-shadow: var(--about-shadow);
  overflow: hidden;
  background: var(--paper-2);
}

.page-about .fix__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .fix__media .media__caption {
  margin: 0;
  padding: 10px 14px;
  border-top: var(--bd-thin);
  font-size: 12px;
  line-height: 1.55;
  color: var(--slate);
}

.page-about .fix__body > p {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
}

.page-about .fix__body .accordion__trigger {
  font-weight: 700;
}

.page-about .fix__body .accordion__panel p {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--slate);
}

.page-about .fix__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
}

/* ---------- 页尾胶囊 ---------- */
.page-about .about-foot-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: clamp(26px, 4vw, 44px);
  padding-bottom: clamp(48px, 7vw, 88px);
  border-top: var(--bd-thin);
}

/* ---------- 窄屏收束 ---------- */
@media (max-width: 520px) {
  .page-about .sec-head {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
  }

  .page-about .sec-head__title {
    font-size: 22px;
  }

  .page-about .timeline__trigger {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .page-about .network__map {
    padding: 12px;
  }

  .page-about .map-dot__label {
    font-size: 13px;
  }

  .page-about .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team__bar,
  .page-about .team__note,
  .page-about .map-dot__pt,
  .page-about .about-head__jump a {
    transition: none;
  }

  .page-about .team__bar:hover,
  .page-about .team__bar:focus-within {
    transform: none;
  }
}
<<<END>>>