.page-about {
  background: var(--coal);
  color: var(--bone);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-about .about-shell {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: clamp(16px, 3vw, 32px) var(--gutter) 0;
  box-sizing: border-box;
}

/* 面包屑 */
.page-about .crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  padding-bottom: 6px;
}
.page-about .crumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.page-about .crumb a:hover,
.page-about .crumb a:focus-visible {
  color: var(--lava);
  border-bottom-color: var(--lava);
  outline: none;
}
.page-about .crumb__sep {
  color: var(--smoke);
}
.page-about .crumb [aria-current="page"] {
  color: var(--bone);
}

/* 首屏 */
.page-about .about-hero {
  position: relative;
  padding: clamp(26px, 5vw, 52px) 0 clamp(24px, 4vw, 40px);
  overflow: hidden;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -34%;
  width: 62%;
  height: 320px;
  background: radial-gradient(closest-side, var(--glow), transparent 72%);
  pointer-events: none;
  z-index: 0;
}
.page-about .about-hero > * {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__title {
  margin: 14px 0 20px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 7.2vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  transform: skewX(-4deg);
  transform-origin: left bottom;
  padding-right: 10px;
}
.page-about .about-hero__title span {
  background: linear-gradient(96deg, var(--lava), var(--ember));
  -webkit-background-clip: text;
  background-clip: text;
  color: var(--lava);
  -webkit-text-fill-color: transparent;
}

.page-about .about-hero__lead {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 2.1vw, 18px);
  line-height: 1.75;
  color: var(--bone);
  opacity: 0.82;
}

/* 数字条 */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  background: var(--smoke);
  border: 1px solid var(--smoke);
  border-radius: 18px 4px 18px 4px;
  overflow: hidden;
}
.page-about .about-stat {
  background: var(--graphite);
  padding: 14px 14px 16px;
}
.page-about .about-stat dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 8px;
}
.page-about .about-stat__num {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 500;
  color: var(--bone);
  white-space: nowrap;
}

/* 主体双栏 */
.page-about .about-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 32px);
  padding-top: clamp(26px, 5vw, 56px);
}

.page-about .about-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}
.page-about .about-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  padding: 6px 0 4px;
  border-top: 1px solid var(--smoke);
  min-width: 118px;
  transition: border-color 160ms var(--ease);
}
.page-about .about-rail__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 500;
  color: var(--violet);
}
.page-about .about-rail__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  transition: color 160ms var(--ease);
}
.page-about .about-rail__link:hover .about-rail__label,
.page-about .about-rail__link:focus-visible .about-rail__label {
  color: var(--bone);
}
.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  border-top-color: var(--lava);
  outline: none;
}
.page-about .about-rail__link:focus-visible .about-rail__label {
  box-shadow: 0 0 0 2px var(--signal);
  border-radius: 3px;
}

/* 章节通用 */
.page-about .about-sec {
  position: relative;
  padding: clamp(26px, 4vw, 42px) 0;
  border-top: 1px solid var(--smoke);
}
.page-about .about-content > .about-sec:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-about .about-sec--band {
  background: linear-gradient(180deg, rgba(42, 42, 42, 0.72), rgba(20, 20, 20, 0) 78%);
  border-top: 0;
  border-radius: 22px 6px 22px 6px;
  padding-left: clamp(14px, 3vw, 26px);
  padding-right: clamp(14px, 3vw, 26px);
  margin-top: 6px;
}

.page-about .section-head {
  margin-bottom: clamp(16px, 2.6vw, 24px);
}
.page-about .eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lava);
  margin: 0 0 10px;
  text-transform: uppercase;
}
.page-about .about-h2 {
  margin: 0;
  font-size: clamp(21px, 3.2vw, 30px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-about .about-p {
  margin: 0 0 1.1em;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(242, 240, 236, 0.82);
}
.page-about .about-p--tail {
  margin-top: 1.4em;
  margin-bottom: 0;
  color: rgba(242, 240, 236, 0.72);
  font-size: 15px;
}
.page-about .about-link {
  color: var(--lava);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 77, 26, 0.5);
  padding-bottom: 1px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.page-about .about-link:hover,
.page-about .about-link:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
  outline: none;
}

.page-about .about-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 62ch;
}

/* 说明牌 */
.page-about .about-plate {
  margin: 18px 0 0;
  padding: 16px 18px 18px;
  border: 1px solid var(--smoke);
  border-radius: 18px 4px 18px 4px;
  background: linear-gradient(158deg, rgba(42, 42, 42, 0.92), rgba(20, 20, 20, 0.55));
  list-style: none;
}
.page-about .about-plate__label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lava);
  margin-bottom: 10px;
}
.page-about .about-plate__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: rgba(242, 240, 236, 0.86);
}

/* 图文分栏 */
.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 28px);
  align-items: start;
  margin-bottom: clamp(16px, 3vw, 24px);
}
.page-about .about-split__text > .about-p:last-child {
  margin-bottom: 0;
}
.page-about .about-figure {
  margin: 0;
  position: relative;
  border-radius: 20px 4px 20px 4px;
  overflow: hidden;
}
.page-about .about-figure .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}
.page-about .about-figure--band {
  margin-bottom: 10px;
}

/* 标签矩阵 */
.page-about .about-matrix {
  margin-top: clamp(18px, 3vw, 26px);
  padding: 14px 14px 10px;
  border: 1px solid var(--smoke);
  border-radius: 20px 4px 20px 4px;
  background: rgba(42, 42, 42, 0.62);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-about .about-matrix:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}
.page-about .about-matrix table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
}
.page-about .about-matrix caption {
  text-align: left;
}
.page-about .about-matrix thead th {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-align: center;
  padding: 6px 4px 12px;
  border-bottom: 1px solid var(--smoke);
  white-space: nowrap;
}
.page-about .about-matrix thead th:first-child {
  text-align: left;
  letter-spacing: 0.06em;
}
.page-about .about-matrix thead th.is-current {
  color: var(--lava);
  box-shadow: inset 0 -1px 0 var(--lava);
}
.page-about .about-matrix tbody th {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--bone);
  text-align: left;
  padding: 7px 12px 7px 0;
  white-space: nowrap;
}
.page-about .about-matrix td {
  text-align: center;
  padding: 7px 4px;
}
.page-about .about-cell {
  display: inline-block;
  width: 20px;
  height: 20px;
  border-radius: 6px 2px 6px 2px;
  background: rgba(58, 58, 58, 0.55);
  border: 1px solid var(--smoke);
  vertical-align: middle;
}
.page-about .about-cell.is-on {
  background: linear-gradient(140deg, var(--lava), var(--ember));
  border-color: transparent;
  box-shadow: 0 0 12px rgba(255, 77, 26, 0.22);
}

/* 团队卡片 */
.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  list-style: none;
}
.page-about .about-team__card {
  margin: 0;
  padding: 18px 18px 20px;
}
.page-about .about-team__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--bone);
}
.page-about .about-team__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(242, 240, 236, 0.76);
}

/* 赛季刻度 */
.page-about .about-time {
  margin: clamp(18px, 3vw, 26px) 0 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
}
.page-about .about-time__track {
  position: relative;
  display: flex;
  align-items: flex-start;
  min-width: 560px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-time__track::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 4%;
  right: 4%;
  height: 1px;
  background: var(--smoke);
}
.page-about .about-time__track > li {
  flex: 1 1 0;
  min-width: 0;
}
.page-about .about-time__node {
  display: block;
  text-align: center;
  text-decoration: none;
  position: relative;
  z-index: 1;
}
.page-about .about-time__dot {
  display: block;
  width: 11px;
  height: 11px;
  margin: 6px auto 10px;
  border-radius: 50%;
  background: var(--graphite);
  border: 2px solid var(--smoke);
  transition: border-color 160ms var(--ease), background 160ms var(--ease);
}
.page-about .about-time__yr {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color 160ms var(--ease);
}
.page-about .about-time__node:hover .about-time__dot,
.page-about .about-time__node:focus-visible .about-time__dot {
  border-color: var(--lava);
}
.page-about .about-time__node:hover .about-time__yr,
.page-about .about-time__node:focus-visible .about-time__yr {
  color: var(--bone);
}
.page-about .about-time__node:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 4px;
  border-radius: 10px;
}
.page-about .about-time__node.is-current .about-time__dot {
  background: var(--lava);
  border-color: var(--lava);
  box-shadow: 0 0 0 4px rgba(255, 77, 26, 0.16);
}
.page-about .about-time__node.is-current .about-time__yr {
  color: var(--lava);
}

/* 赛季条目 */
.page-about .about-seasons {
  margin-top: clamp(16px, 3vw, 24px);
}
.page-about .about-season {
  position: relative;
  padding: 0 0 22px 20px;
  border-left: 2px solid var(--smoke);
}
.page-about .about-season::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 5px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--smoke);
}
.page-about .about-season.is-key::before {
  background: var(--lava);
  box-shadow: 0 0 0 4px rgba(255, 77, 26, 0.16);
}
.page-about .about-season:last-child {
  padding-bottom: 0;
}
.page-about .about-season__yr {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lava);
}
.page-about .about-season h3 {
  margin: 6px 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--bone);
}
.page-about .about-season p {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(242, 240, 236, 0.76);
}

/* 数据要点 */
.page-about .about-facts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: clamp(16px, 3vw, 22px) 0 0;
  padding: 0;
  list-style: none;
}
.page-about .about-facts__item {
  padding: 16px 18px 18px;
  border: 1px solid var(--smoke);
  border-left: 3px solid var(--lava);
  border-radius: 4px 16px 4px 16px;
  background: rgba(42, 42, 42, 0.55);
}
.page-about .about-facts__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  font-weight: 500;
  line-height: 1;
  color: var(--lava);
}
.page-about .about-facts__key {
  display: block;
  margin: 8px 0 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--bone);
}
.page-about .about-facts__text {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 240, 236, 0.74);
}

/* 本地服务 */
.page-about .about-sec--local {
  background:
    linear-gradient(140deg, rgba(255, 77, 26, 0.1), rgba(20, 20, 20, 0) 58%),
    linear-gradient(180deg, rgba(42, 42, 42, 0.6), rgba(20, 20, 20, 0));
  border-top: 0;
  border-radius: 24px 6px 24px 6px;
  padding-left: clamp(16px, 3vw, 30px);
  padding-right: clamp(16px, 3vw, 30px);
  margin-top: clamp(10px, 2vw, 20px);
}
.page-about .about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 24px);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-about .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-team {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }
  .page-about .about-split--reverse {
    grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  }
  .page-about .about-split--reverse .about-figure {
    order: 2;
  }
}

@media (min-width: 980px) {
  .page-about .about-stats {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .page-about .about-body {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }
  .page-about .about-rail {
    position: sticky;
    top: 24px;
    align-self: start;
  }
  .page-about .about-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 14px;
  }
  .page-about .about-rail__link {
    min-width: 0;
    width: 100%;
    padding-top: 9px;
  }
  .page-about .about-rail__num {
    font-size: 24px;
    font-weight: 200;
    line-height: 1;
  }
  .page-about .about-rail__label {
    font-size: 12.5px;
  }
  .page-about .about-team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-time {
    overflow-x: visible;
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero__lead {
    max-width: 56ch;
  }
  .page-about .about-matrix table {
    min-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
  .page-about .about-hero__title {
    transform: none;
  }
}
<<<END>>>