.page-about {
  background: var(--ink-void);
  color: var(--paper);
  padding-block: clamp(20px, 3.5vw, 40px) clamp(48px, 7vw, 96px);
}

.page-about .about-shell {
  min-width: 0;
}

.page-about :focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* 面包屑 */
.page-about .about-crumb {
  margin-bottom: clamp(22px, 3.5vw, 36px);
}

.page-about .about-crumb .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.page-about .about-crumb .breadcrumb__link {
  color: var(--paper-dim);
  text-decoration: none;
}

.page-about .about-crumb .breadcrumb__link:hover {
  color: var(--cyan);
}

.page-about .about-crumb .breadcrumb__link[aria-current="page"] {
  color: var(--paper);
}

.page-about .about-crumb .breadcrumb__sep {
  color: var(--grid-line);
}

/* 首屏 */
.page-about .about-hero {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  padding-bottom: clamp(28px, 4.5vw, 52px);
  border-bottom: 1px solid var(--grid-line);
  position: relative;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: clamp(64px, 14vw, 180px);
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}

.page-about .about-hero__main {
  padding-top: clamp(18px, 3vw, 30px);
  min-width: 0;
}

.page-about .about-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.6vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 22ch;
}

.page-about .about-hero__lead {
  margin: 0 0 26px;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.86;
}

.page-about .about-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

.page-about .about-fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  background: var(--deck-blue);
}

.page-about .about-fact__num {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  letter-spacing: 0.02em;
  color: var(--cyan);
  line-height: 1;
}

.page-about .about-fact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--paper-dim);
}

/* 布局与索引栏 */
.page-about .about-layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(30px, 5vw, 60px);
  min-width: 0;
}

.page-about .about-rail {
  border-top: 1px solid var(--grid-line);
  padding-top: 14px;
  min-width: 0;
}

.page-about .about-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-about .about-rail__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-rail__list::-webkit-scrollbar {
  display: none;
}

.page-about .about-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 10px;
  border-bottom: 2px solid transparent;
  color: var(--paper-dim);
  text-decoration: none;
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--cyan);
}

.page-about .about-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

/* 章节通用 */
.page-about .about-body {
  min-width: 0;
}

.page-about .about-section {
  padding-block: clamp(30px, 4.5vw, 54px);
  border-top: 1px solid var(--grid-line);
}

.page-about .about-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .about-num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-about .about-head__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.35rem, 3.4vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--paper);
  max-width: 26ch;
}

.page-about .about-head__lead {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-about .about-prose {
  max-width: 62ch;
}

.page-about .about-prose p {
  margin: 0 0 1.15em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.88;
}

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

.page-about .about-prose--tail {
  margin-top: clamp(20px, 3vw, 30px);
  padding-left: 14px;
  border-left: 2px solid var(--grid-line);
}

.page-about .about-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 231, 218, 0.4);
  transition: border-color var(--t-fast) var(--ease);
}

.page-about .about-inline-link:hover {
  border-bottom-color: var(--cyan);
}

/* 图片 */
.page-about .about-fig {
  margin: 0;
  border: 1px solid var(--grid-line);
  background: var(--deck-blue);
  min-width: 0;
}

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

.page-about .about-fig figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--grid-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--paper-dim);
}

.page-about .about-fig--wide {
  margin-bottom: clamp(24px, 3.5vw, 36px);
}

/* 时间线 */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  border-left: 1px solid var(--grid-line);
}

.page-about .about-tl {
  position: relative;
  padding-bottom: clamp(18px, 2.6vw, 26px);
}

.page-about .about-tl:last-child {
  padding-bottom: 0;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--ink-void);
  border: 1px solid var(--cyan);
}

.page-about .about-tl__card {
  padding: 14px 16px;
  border: 1px solid var(--grid-line);
  background: var(--deck-blue);
  transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-about .about-tl__card:hover,
.page-about .about-tl__card:focus-within {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-about .about-tl__era {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .about-tl__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-about .about-tl__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-about .about-tl__note {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 220ms var(--ease), opacity 160ms var(--ease);
}

.page-about .about-tl__card:hover .about-tl__note,
.page-about .about-tl__card:focus-within .about-tl__note {
  max-height: 220px;
  opacity: 1;
}

.page-about .about-tl__notebox {
  padding-top: 10px;
}

.page-about .about-tl__notebox p {
  margin: 0;
  padding: 10px 14px;
  border-left: 2px solid var(--cyan);
  background: rgba(5, 11, 24, 0.72);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.82;
}

/* 团队 */
.page-about .about-team {
  display: grid;
  gap: clamp(22px, 3.5vw, 32px);
  min-width: 0;
}

.page-about .about-team__plates {
  min-width: 0;
}

.page-about .about-plate {
  border: 1px solid var(--grid-line);
  background: var(--deck-blue);
  transition: border-color var(--t-fast) var(--ease);
}

.page-about .about-plate + .about-plate {
  margin-top: -1px;
}

.page-about .about-plate:hover {
  border-color: var(--cyan);
}

.page-about .about-plate__sum {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--paper);
}

.page-about .about-plate__sum::-webkit-details-marker {
  display: none;
}

.page-about .about-plate__sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
}

.page-about .about-plate[open] .about-plate__sum::after {
  content: "–";
}

.page-about .about-plate[open] .about-plate__sum {
  border-bottom: 1px solid var(--grid-line);
}

.page-about .about-plate__code {
  flex: none;
  padding: 2px 6px;
  border: 1px solid var(--grid-line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-about .about-plate__body {
  padding: 13px 14px;
}

.page-about .about-plate__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper-dim);
}

/* 覆盖 */
.page-about .about-reach {
  display: grid;
  gap: clamp(22px, 3.5vw, 32px);
  min-width: 0;
}

.page-about .about-reach__body {
  min-width: 0;
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 12px;
  background: var(--ink-void);
}

.page-about .about-stat__label {
  order: 2;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--paper-dim);
}

.page-about .about-stat__num {
  order: 1;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  line-height: 1;
  color: var(--cyan);
}

/* 赛季节奏 */
.page-about .about-rhythm {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-about .about-phase {
  padding: 18px 16px 20px;
  border: 1px solid var(--grid-line);
  border-top-width: 3px;
  background: var(--deck-blue);
  transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-about .about-phase:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
}

.page-about .about-phase--regular {
  border-top-color: var(--cyan);
}

.page-about .about-phase--playoff {
  border-top-color: var(--orange);
}

.page-about .about-phase--offseason {
  border-top-color: var(--lime);
}

.page-about .about-phase__tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--paper-dim);
}

.page-about .about-phase__title {
  margin: 0 0 10px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .about-phase__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper-dim);
}

/* 合作 */
.page-about .about-partners {
  display: grid;
  gap: 1px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

.page-about .about-partner {
  padding: 18px 16px;
  background: var(--ink-void);
}

.page-about .about-partner__num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 2.8vw, 1.7rem);
  line-height: 1;
  color: var(--orange);
}

.page-about .about-partner__title {
  margin: 0 0 8px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-partner__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper-dim);
}

/* 收尾行动区 */
.page-about .about-cta {
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--grid-line);
  background: linear-gradient(135deg, var(--deck-blue) 0%, var(--ink-void) 72%);
  position: relative;
  overflow: hidden;
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -60px;
  width: 200px;
  height: 200px;
  border: 1px solid var(--grid-line);
  transform: rotate(12deg);
  pointer-events: none;
}

.page-about .about-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.3rem, 3.4vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--paper);
  max-width: 24ch;
}

.page-about .about-cta__text {
  margin: 0 0 22px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper-dim);
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  position: relative;
  z-index: 1;
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-team,
  .page-about .about-reach {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-team__plates {
    order: 1;
  }

  .page-about .about-team .about-fig--team {
    order: 2;
  }

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

  .page-about .about-rhythm {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--grid-line);
    border: 1px solid var(--grid-line);
  }

  .page-about .about-phase {
    border: 0;
    border-top-width: 3px;
    border-top-style: solid;
  }

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

@media (min-width: 1000px) {
  .page-about .about-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-about .about-rail {
    position: sticky;
    top: 96px;
    padding-top: 18px;
  }

  .page-about .about-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-rail__link {
    padding: 9px 0 9px 12px;
    border-bottom: 0;
    border-left: 2px solid transparent;
    white-space: normal;
    font-size: 13.5px;
  }

  .page-about .about-rail__link:hover,
  .page-about .about-rail__link:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--cyan);
  }

  .page-about .about-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-about .about-reach {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  }

  .page-about .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
<<<END>>>