.page-about {
  --about-rail: 180px;
  --about-ink: #0E1626;
  --about-glow: rgba(47, 243, 214, .16);
  display: block;
  overflow-x: clip;
  color: var(--paper);
  background: var(--void);
}

/* ---------- hero ---------- */
.page-about .crumbs {
  padding: 20px 0 6px;
  font-size: 13px;
  color: var(--muted);
}
.page-about .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}
.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}
.page-about .crumbs__sep {
  margin: 0 8px;
  color: var(--steel);
}

.page-about .about-hero {
  padding: 18px 0 44px;
}
.page-about .about-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding: 26px 20px 30px;
  border-radius: var(--radius);
  background:
    radial-gradient(120% 130% at 12% 0%, rgba(27, 42, 74, .78) 0%, rgba(13, 23, 48, .92) 46%, rgba(6, 11, 26, .96) 100%);
  box-shadow: var(--shadow-console);
}
.page-about .about-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-about .about-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--paper);
  max-width: 20ch;
}
.page-about .about-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(242, 245, 250, .8);
}
.page-about .about-hero__actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__aside {
  border-top: 1px solid var(--steel);
  padding-top: 18px;
}
.page-about .about-hero__aside-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}
.page-about .about-facts {
  margin: 0;
  display: grid;
  gap: 12px;
}
.page-about .about-facts__row {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 10px;
  align-items: baseline;
}
.page-about .about-facts dt {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .06em;
}
.page-about .about-facts dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}
.page-about .about-facts dd .num {
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: 17px;
}

.page-about .about-strip {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  background: var(--steel);
  overflow: hidden;
}
.page-about .about-strip__cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 14px;
  background: var(--console);
}
.page-about .about-strip__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--cyan-lt);
}
.page-about .about-strip__label {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-sec {
  padding: 48px 0;
  border-top: 1px solid var(--steel);
}
.page-about .about-sec__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.page-about .about-sec__aside {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.page-about .about-sec__no {
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
  color: var(--cyan);
  opacity: .55;
  transition: opacity .25s var(--ease);
}
.page-about .about-sec__note {
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}
.page-about .about-sec__body h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.24;
  letter-spacing: -.005em;
  color: var(--paper);
}
.page-about .about-sec__body h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--paper);
}
.page-about .about-sec__body p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(242, 245, 250, .8);
}
.page-about .about-sec__body a {
  color: var(--cyan-lt);
  text-decoration: none;
  border-bottom: 1px solid var(--about-glow);
  transition: border-color .16s var(--ease), color .16s var(--ease);
}
.page-about .about-sec__body a:hover,
.page-about .about-sec__body a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 档案卡 ---------- */
.page-about .about-file {
  margin-top: 24px;
  padding: 22px 20px 20px;
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--about-ink);
  box-shadow: 0 22px 48px -30px rgba(0, 0, 0, .95);
}
.page-about .about-file__tab {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: #4A5977;
}
.page-about .about-file__title {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 700;
  color: var(--about-ink);
}
.page-about .about-file__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-about .about-file__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: #2A3консь;
  color: #2A3448;
}
.page-about .about-file__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--flame);
}

/* ---------- 配图 ---------- */
.page-about .about-figure {
  margin: 22px 0 26px;
}
.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  object-fit: cover;
}
.page-about .about-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 数据流示意 ---------- */
.page-about .about-flow {
  margin: 0 0 26px;
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(13, 23, 48, .85), rgba(6, 11, 26, .6));
  padding: 8px 6px;
}
.page-about .about-flow svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 同步节奏 ---------- */
.page-about .about-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .about-split__item {
  padding: 18px 16px;
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  background: var(--console);
  border-left-width: 4px;
}
.page-about .about-split__item--cyan { border-left-color: var(--cyan); }
.page-about .about-split__item--amber { border-left-color: var(--amber); }
.page-about .about-split__kicker {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}
.page-about .about-split__num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1.1;
  color: var(--paper);
}
.page-about .about-split__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(242, 245, 250, .74);
}

/* ---------- 场景 ---------- */
.page-about .about-scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .about-scene {
  padding: 18px 16px;
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(13, 23, 48, .7), rgba(6, 11, 26, .4));
}
.page-about .about-scene:nth-child(2) {
  background: linear-gradient(180deg, rgba(27, 42, 74, .55), rgba(6, 11, 26, .4));
}
.page-about .about-scene__tag {
  display: inline-block;
  margin: 0 0 10px;
}
.page-about .about-scene p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(242, 245, 250, .78);
}
.page-about .about-scene h3 {
  margin: 0 0 6px;
}

/* ---------- 术语表 ---------- */
.page-about .about-terms {
  margin-top: 6px;
  border-top: 1px solid var(--steel);
}
.page-about .about-terms__hint {
  margin: 14px 0 6px;
  font-size: 13px;
  color: var(--muted);
}
.page-about .about-term {
  border-bottom: 1px solid var(--steel);
}
.page-about .about-term > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
  transition: color .16s var(--ease);
}
.page-about .about-term > summary::-webkit-details-marker { display: none; }
.page-about .about-term > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.page-about .about-term__cn {
  font-size: 15.5px;
  color: var(--paper);
}
.page-about .about-term__more {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
}
.page-about .about-term[open] > summary .about-term__cn { color: var(--cyan-lt); }
.page-about .about-term[open] > summary .about-term__more { color: var(--flame); }
.page-about .about-term__pair {
  padding: 0 2px 16px;
}
.page-about .about-term__pair p {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 245, 250, .74);
}
.page-about .about-term__key {
  display: inline-block;
  min-width: 44px;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 8px;
}
.page-about .about-team__item {
  padding: 20px 18px;
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  background: var(--console);
}
.page-about .about-team__item--lead {
  background: linear-gradient(140deg, rgba(27, 42, 74, .85), rgba(13, 23, 48, .9));
  border-color: rgba(47, 243, 214, .34);
}
.page-about .about-team__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-about .about-team__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(242, 245, 250, .78);
}
.page-about .about-team__stat {
  margin-top: 14px !important;
  padding-top: 12px;
  border-top: 1px dashed var(--steel);
  font-size: 13.5px;
  color: var(--muted);
}
.page-about .about-team__stat .num {
  font-family: var(--font-mono);
  font-size: 19px;
  color: var(--flame);
  margin-right: 6px;
}

/* ---------- 赛季时间线 ---------- */
.page-about .about-sec--track {
  background:
    radial-gradient(90% 120% at 80% 0%, rgba(27, 42, 74, .55) 0%, rgba(6, 11, 26, 0) 62%);
}
.page-about .about-track-wrap {
  position: relative;
  margin-top: 10px;
}
.page-about .about-track-wrap::before {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), rgba(47, 243, 214, .12));
}
.page-about .about-track {
  margin: 0;
  padding: 20px 2px 16px;
  list-style: none;
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.page-about .about-stop {
  position: relative;
  flex: 0 0 228px;
  scroll-snap-align: start;
  padding: 18px 16px 14px;
  border: 1px solid var(--steel);
  border-radius: var(--radius-sm);
  background: var(--console);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.page-about .about-stop::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 18px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(47, 243, 214, .16);
  transform: translateY(-50%);
}
.page-about .about-stop:hover,
.page-about .about-stop:focus-within {
  border-color: rgba(47, 243, 214, .5);
  transform: translateY(-2px);
}
.page-about .about-stop:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-about .about-stop__season {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber);
}
.page-about .about-stop__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
}
.page-about .about-stop__more {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
  transition: max-height .28s var(--ease), opacity .28s var(--ease);
}
.page-about .about-stop:hover .about-stop__more,
.page-about .about-stop:focus-within .about-stop__more {
  max-height: 160px;
  opacity: 1;
}

/* ---------- 安全提示 ---------- */
.page-about .about-callout {
  margin-top: 18px;
  padding: 18px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--steel);
  border-left: 4px solid var(--cyan);
  background: rgba(13, 23, 48, .8);
}
.page-about .about-callout__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(242, 245, 250, .78);
}

/* ---------- 后续入口 ---------- */
.page-about .about-next {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .about-next__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  background: var(--console);
  text-decoration: none;
  border-bottom: 1px solid var(--steel);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  border-color: var(--cyan);
  background: rgba(27, 42, 74, .7);
}
.page-about .about-next__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-about .about-next__title {
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .about-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-about .about-scenes { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-about .about-scene--wide { grid-column: span 3; }
  .page-about .about-split { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-about .about-next { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-about .about-hero__inner { padding: 34px 30px 38px; }
  .page-about .about-hero__aside {
    border-top: 0;
    border-left: 1px solid var(--steel);
    padding: 4px 0 0 24px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: 40px;
    align-items: start;
  }
  .page-about .about-sec { padding: 64px 0; }
  .page-about .about-sec__grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 48px;
  }
  .page-about .about-sec__aside {
    display: block;
    position: sticky;
    top: 104px;
    align-self: start;
  }
  .page-about .about-sec__no {
    display: block;
    font-size: 56px;
    opacity: .38;
    margin-bottom: 10px;
  }
  .page-about .about-sec__note {
    display: block;
    line-height: 1.7;
  }
  .page-about .about-sec:hover .about-sec__no,
  .page-about .about-sec.is-current .about-sec__no { opacity: 1; }
  .page-about .about-team { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .page-about .about-team__item--lead { grid-column: span 12; }
  .page-about .about-team__item:nth-child(2) { grid-column: span 7; }
  .page-about .about-team__item:nth-child(3) { grid-column: span 5; }
  .page-about .about-figure--narrow { max-width: 78%; }
  .page-about .about-file { padding: 28px 26px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stop,
  .page-about .about-stop__more,
  .page-about .about-sec__no,
  .page-about .about-next__card {
    transition: none;
  }
  .page-about .about-stop:hover,
  .page-about .about-stop:focus-within { transform: none; }
}
<<<END>>>