.page-about {
  --about-gap: clamp(30px, 5vw, 62px);
  --about-card: rgba(12, 42, 32, .72);
  --about-edge: rgba(140, 163, 184, .18);
  --about-rail-w: 296px;
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumbs {
  padding-top: 16px;
}

.page-about .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--steel);
}

.page-about .crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(140, 163, 184, .55);
}

.page-about .crumbs a {
  color: var(--grass);
  text-decoration: none;
}

.page-about .crumbs a:hover {
  color: var(--glow);
}

/* ---------- 首屏 ---------- */
.page-about .about-intro {
  padding-block: clamp(20px, 4vw, 38px) clamp(34px, 6vw, 66px);
}

.page-about .about-intro__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 54px);
  line-height: 1.14;
  letter-spacing: -.03em;
  color: var(--lamp);
  max-width: 20ch;
}

.page-about .about-intro__lead {
  margin-top: clamp(14px, 2.6vw, 22px);
  max-width: 62ch;
  color: var(--steel);
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.72;
}

.page-about .about-intro__figure {
  margin: clamp(22px, 4vw, 36px) 0 0;
}

.page-about .about-intro__figure .figure__media {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--about-edge);
  background:
    linear-gradient(140deg, rgba(23, 178, 106, .22), rgba(7, 19, 15, .9) 60%),
    repeating-linear-gradient(115deg, rgba(94, 224, 138, .07) 0 3px, transparent 3px 14px);
}

.page-about .about-intro__figure .figure__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-about .about-intro__figure .figure__cap {
  margin-top: 10px;
  font-family: var(--font-editorial);
  font-size: 13.5px;
  color: var(--steel);
}

/* ---------- 关键数字 ---------- */
.page-about .about-stats {
  list-style: none;
  margin: clamp(26px, 4.4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-edge);
  border: 1px solid var(--about-edge);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-stats__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: rgba(7, 19, 15, .9);
}

.page-about .about-stats__num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(26px, 5.2vw, 38px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--glow);
}

.page-about .about-stats__cap {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--steel);
}

/* ---------- 非对称看台布局 ---------- */
.page-about .about-body {
  padding-bottom: clamp(40px, 7vw, 80px);
}

.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

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

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

.page-about .about-flow > .about-block + .about-block {
  margin-top: var(--about-gap);
}

/* ---------- 面板 ---------- */
.page-about .about-panel {
  padding: clamp(20px, 3.8vw, 38px);
  background: var(--about-card);
  border: 1px solid var(--about-edge);
  border-radius: var(--r-lg);
}

.page-about .about-panel--pledge {
  background:
    radial-gradient(120% 100% at 0% 0%, rgba(255, 77, 28, .16), transparent 58%),
    var(--about-card);
}

.page-about .section__head {
  margin-bottom: clamp(16px, 2.6vw, 24px);
}

.page-about .section__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--lamp);
}

.page-about .eyebrow {
  margin: 0;
  font-family: var(--font-editorial);
  font-size: 13px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--flare);
}

.page-about .prose p {
  margin: 0 0 14px;
  color: var(--stand);
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.76;
}

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

.page-about .about-quote {
  margin: clamp(18px, 3vw, 26px) 0;
  padding: 16px 0 16px 20px;
  border-left: 3px solid var(--flare);
  background: linear-gradient(90deg, rgba(255, 77, 28, .1), transparent 72%);
}

.page-about .about-quote p {
  margin: 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.6;
  color: var(--lamp);
}

/* ---------- 起点要点 ---------- */
.page-about .about-pts {
  list-style: none;
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-pts li {
  position: relative;
  padding: 12px 16px 12px 30px;
  background: rgba(27, 42, 58, .42);
  border-radius: var(--r-sm);
  color: var(--stand);
  font-size: 15px;
  line-height: 1.66;
}

.page-about .about-pts li::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--grass);
}

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

/* ---------- 赛季时间线 ---------- */
.page-about .about-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: about-era;
}

.page-about .about-track__item {
  position: relative;
  padding: clamp(18px, 3vw, 26px) clamp(18px, 3vw, 26px) clamp(18px, 3vw, 26px) clamp(58px, 9vw, 86px);
  background: linear-gradient(150deg, rgba(12, 42, 32, .94), rgba(7, 19, 15, .8));
  border: 1px solid var(--about-edge);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-track__item::before {
  counter-increment: about-era;
  content: "0" counter(about-era);
  position: absolute;
  left: clamp(16px, 2.6vw, 26px);
  top: clamp(18px, 3vw, 26px);
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--flare);
}

.page-about .about-track__item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--flare), rgba(255, 77, 28, 0));
}

.page-about .about-track__era {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--signal);
}

.page-about .about-track__title {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--lamp);
  letter-spacing: -.01em;
}

.page-about .about-track__text {
  margin: 0;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.72;
}

/* ---------- 图表 ---------- */
.page-about .about-chart {
  margin: clamp(20px, 3.4vw, 30px) 0 0;
  padding: clamp(16px, 3vw, 26px);
  background: rgba(27, 42, 58, .5);
  border: 1px solid var(--about-edge);
  border-radius: var(--r-md);
}

.page-about .about-chart__cap {
  font-family: var(--font-editorial);
  font-size: 13.5px;
  letter-spacing: .06em;
  color: var(--steel);
  margin-bottom: 10px;
}

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

.page-about .about-chart__axis {
  stroke: rgba(140, 163, 184, .26);
  stroke-width: 1;
}

.page-about .about-chart__area {
  fill: rgba(23, 178, 106, .16);
  stroke: none;
}

.page-about .about-chart__line {
  fill: none;
  stroke: var(--glow);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-about .about-chart__dot {
  fill: var(--night);
  stroke: var(--grass);
  stroke-width: 2.5;
}

.page-about .about-chart__dot--now {
  fill: var(--flare);
  stroke: var(--flare);
}

.page-about .about-chart text {
  fill: var(--steel);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-about .about-chart text.about-chart__lbl {
  fill: var(--signal);
  font-size: 14px;
  font-weight: 700;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 28px);
}

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

.page-about .about-team__figure .figure__media,
.page-about .about-net__figure .figure__media {
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--about-edge);
  background:
    linear-gradient(160deg, rgba(23, 178, 106, .2), rgba(27, 42, 58, .92)),
    repeating-linear-gradient(70deg, rgba(140, 163, 184, .08) 0 2px, transparent 2px 12px);
}

.page-about .about-team__figure .figure__media img,
.page-about .about-net__figure .figure__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-team__figure .figure__cap,
.page-about .about-net__figure .figure__cap {
  margin-top: 10px;
  font-family: var(--font-editorial);
  font-size: 13px;
  color: var(--steel);
}

.page-about .about-facts {
  margin-top: clamp(20px, 3.2vw, 30px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-edge);
  border: 1px solid var(--about-edge);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-fact {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 16px;
  background: rgba(27, 42, 58, .62);
}

.page-about .about-fact__num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 26px;
  line-height: 1;
  color: var(--signal);
}

.page-about .about-fact__cap {
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--steel);
}

/* ---------- 协作网络 ---------- */
.page-about .about-net {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 28px);
  align-items: start;
}

.page-about .about-net__figure {
  margin: 0;
  max-width: 420px;
}

.page-about .about-net__cta {
  margin-top: 18px;
}

/* ---------- 更新承诺 ---------- */
.page-about .about-pledge {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-edge);
  border: 1px solid var(--about-edge);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-pledge__item {
  display: grid;
  grid-template-columns: minmax(84px, auto) minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 14px 16px;
  background: rgba(7, 19, 15, .78);
}

.page-about .about-pledge__key {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -.01em;
  color: var(--glow);
  white-space: nowrap;
}

.page-about .about-pledge__val {
  color: var(--stand);
  font-size: 14.5px;
  line-height: 1.6;
}

.page-about .about-pledge__note {
  margin: clamp(16px, 2.6vw, 22px) 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--signal);
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

.page-about .about-pledge__cta {
  margin-top: clamp(18px, 3vw, 26px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 侧栏 ---------- */
.page-about .about-rail {
  position: static;
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}

.page-about .about-toc {
  padding: 16px 14px;
  background: rgba(12, 42, 32, .66);
  border: 1px solid var(--about-edge);
  border-radius: var(--r-md);
}

.page-about .about-toc__head {
  margin: 0 0 10px;
  padding-left: 12px;
  font-family: var(--font-editorial);
  font-size: 12.5px;
  letter-spacing: .2em;
  color: var(--flare);
}

.page-about .about-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-toc__list a {
  display: block;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  color: var(--steel);
  font-size: 14px;
  text-decoration: none;
  transition: color .18s ease, background .18s ease, border-color .18s ease;
}

.page-about .about-toc__list a:hover {
  color: var(--lamp);
  background: rgba(23, 178, 106, .1);
}

.page-about .about-toc__list a.is-active {
  color: var(--lamp);
  background: rgba(255, 77, 28, .12);
  border-left-color: var(--flare);
}

.page-about .about-railcard {
  padding: 16px 16px 18px;
  background: rgba(27, 42, 58, .5);
  border: 1px solid var(--about-edge);
  border-radius: var(--r-md);
}

.page-about .about-railcard--flare {
  background:
    radial-gradient(130% 110% at 100% 0%, rgba(255, 77, 28, .24), transparent 62%),
    rgba(12, 42, 32, .8);
  border-color: rgba(255, 77, 28, .34);
}

.page-about .about-railcard__head {
  margin: 0 0 12px;
  font-family: var(--font-editorial);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--lamp);
}

.page-about .about-railcard__text {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--steel);
}

.page-about .about-railcard__dl {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--about-edge);
  border-radius: var(--r-sm);
  overflow: hidden;
}

.page-about .about-railcard__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 9px 11px;
  background: rgba(7, 19, 15, .82);
}

.page-about .about-railcard__row dt {
  font-size: 13.5px;
  color: var(--steel);
}

.page-about .about-railcard__row dd {
  margin: 0;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 16px;
  color: var(--glow);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-team {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-about .about-net {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    align-items: start;
  }

  .page-about .about-net__figure {
    max-width: none;
  }
}

@media (min-width: 1040px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 1fr) var(--about-rail-w);
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }

  .page-about .about-intro__title {
    max-width: 24ch;
  }
}
<<<END>>>