.page-about {
  --about-glow-a: rgba(255, 61, 127, 0.15);
  --about-glow-b: rgba(69, 224, 255, 0.11);
  --about-card-bg: linear-gradient(165deg, rgba(18, 39, 30, 0.94), rgba(11, 26, 20, 0.9));
  --about-hairline: rgba(227, 194, 122, 0.34);
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumbs {
  padding: 22px 0 0;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--ash-500);
}
.page-about .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .breadcrumbs a {
  color: var(--ash-300);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.page-about .breadcrumbs a:hover {
  color: var(--gold-400);
}
.page-about .breadcrumbs .crumb-sep {
  color: var(--jade-600);
}
.page-about .breadcrumbs [aria-current="page"] {
  color: var(--gold-400);
}

/* ---------- 通用 ---------- */
.page-about .section {
  position: relative;
  scroll-margin-top: 96px;
}
.page-about .section-head {
  max-width: 66ch;
}
.page-about .about-lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ash-300);
}

/* ---------- 首屏框景 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 26px 0 10px;
  isolation: isolate;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  left: 0;
  right: 0;
  height: 480px;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(52% 70% at 22% 34%, var(--about-glow-a), transparent 72%),
    radial-gradient(46% 64% at 84% 48%, var(--about-glow-b), transparent 74%);
}
.page-about .about-hero__frame {
  padding: 38px 24px 30px;
  background: linear-gradient(158deg, rgba(18, 39, 30, 0.92), rgba(6, 17, 13, 0.97));
}
.page-about .about-hero__stamp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--gold-400);
  border: 1px solid var(--about-hairline);
  background: rgba(6, 17, 13, 0.6);
}
.page-about .about-hero__stamp::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--magenta-500);
  box-shadow: 0 0 10px 1px rgba(255, 61, 127, 0.7);
}
.page-about .about-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.8rem, 6.6vw, 3.35rem);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--gold-200);
}
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .page-about .about-hero__title {
    background: linear-gradient(176deg, var(--gold-200) 0%, var(--gold-400) 52%, #b08f47 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}
.page-about .about-hero__lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 1.02rem;
  line-height: 1.9;
  color: var(--ash-300);
}
.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin: 30px 0 0;
  padding: 1px;
  background: var(--about-hairline);
}
.page-about .about-hero__fact {
  padding: 16px 16px 18px;
  background: rgba(6, 17, 13, 0.86);
}
.page-about .about-hero__fact dt {
  margin: 0 0 8px;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--ash-500);
}
.page-about .about-hero__fact dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ash-300);
}
.page-about .about-hero__fact .num {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  letter-spacing: 0.02em;
  color: var(--cyan-400);
}
.page-about .about-hero__rule {
  margin-top: 30px;
}

/* ---------- 起点 ---------- */
.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}
@media (min-width: 880px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
  }
}
.page-about .about-origin__prose p {
  color: var(--ash-300);
}
.page-about .about-quote {
  margin: 28px 0 0;
  padding: 4px 0 4px 18px;
  border-left: 4px solid var(--gold-400);
  font-family: var(--font-display);
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--gold-200);
}
.page-about .about-origin__media {
  margin: 0;
}
.page-about .about-origin__media img,
.page-about .about-flow__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.86) brightness(0.92);
}

/* ---------- 编年时间轴 ---------- */
.page-about .about-timeline {
  position: relative;
  margin: 42px 0 0;
  padding: 0 0 0 22px;
  list-style: none;
  border-left: 1px solid var(--jade-line);
}
.page-about .about-timeline__item {
  position: relative;
  padding: 22px 0;
  border-bottom: 1px solid var(--jade-line);
  outline: none;
  transition: background-color 0.3s var(--ease);
}
.page-about .about-timeline__item:last-child {
  border-bottom: 0;
}
.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  top: 30px;
  left: -27px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-950);
  border: 1.5px solid var(--gold-400);
  transition: background-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}
.page-about .about-timeline__item:hover::before,
.page-about .about-timeline__item:focus-visible::before {
  background: var(--magenta-500);
  box-shadow: 0 0 0 5px rgba(255, 61, 127, 0.16);
}
.page-about .about-timeline__item:focus-visible {
  outline: 1px dashed var(--gold-line);
  outline-offset: 4px;
}
.page-about .about-timeline__year {
  display: inline-block;
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--gold-400);
}
.page-about .about-timeline__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.24rem;
  font-weight: 700;
  color: var(--gold-200);
}
.page-about .about-timeline__body p {
  margin: 0 0 8px;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ash-300);
}
.page-about .about-timeline__avail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--cyan-400);
}
@media (min-width: 820px) {
  .page-about .about-timeline__item {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 0 36px;
    padding: 30px 0;
  }
  .page-about .about-timeline__item::before {
    top: 38px;
  }
  .page-about .about-timeline__year {
    writing-mode: vertical-rl;
    letter-spacing: 0.36em;
    padding-top: 4px;
    align-self: start;
    margin: 0;
  }
}

/* ---------- 四组分工 ---------- */
.page-about .about-teams {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 40px;
}
@media (min-width: 620px) {
  .page-about .about-teams {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1060px) {
  .page-about .about-teams {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }
}
.page-about .team-card {
  position: relative;
  padding: 32px 20px 24px;
  background: var(--about-card-bg);
  border: 1px solid var(--about-hairline);
  box-shadow: var(--shadow-card);
  transition: transform 0.26s var(--ease), border-color 0.26s var(--ease), box-shadow 0.26s var(--ease);
}
.page-about .team-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold-400);
  box-shadow: 0 24px 44px -22px rgba(0, 0, 0, 0.98), 5px 5px 0 rgba(0, 0, 0, 0.5);
}
.page-about .team-card__idx {
  position: absolute;
  top: 0;
  right: 0;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--ink-950);
  background: var(--gold-400);
}
.page-about .team-card__count {
  display: block;
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--cyan-400);
}
.page-about .team-card__name {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold-200);
}
.page-about .team-card__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ash-300);
}

/* ---------- 班次四步 ---------- */
.page-about .about-flow__media {
  margin: 36px 0 0;
}
.page-about .about-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
}
.page-about .about-flow__step {
  position: relative;
  padding: 20px 0 20px 28px;
  border-left: 1px solid var(--jade-line);
  outline: none;
  transition: background-color 0.28s var(--ease);
}
.page-about .about-flow__step::before {
  content: "";
  position: absolute;
  top: 26px;
  left: -5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-950);
  border: 1.5px solid var(--gold-400);
  transition: background-color 0.26s var(--ease), box-shadow 0.26s var(--ease);
}
.page-about .about-flow__step:hover::before,
.page-about .about-flow__step:focus-visible::before {
  background: var(--magenta-500);
  box-shadow: 0 0 0 5px rgba(255, 61, 127, 0.16);
}
.page-about .about-flow__step:focus-visible {
  outline: 1px dashed var(--gold-line);
  outline-offset: 3px;
}
.page-about .about-flow__no {
  display: block;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--cyan-400);
}
.page-about .about-flow__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gold-200);
}
.page-about .about-flow__step p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--ash-300);
}
@media (min-width: 760px) {
  .page-about .about-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 26px;
  }
  .page-about .about-flow__step {
    padding: 30px 0 0;
    border-left: 0;
  }
  .page-about .about-flow__step::before {
    top: 0;
    left: 0;
    width: 38px;
    height: 2px;
    border: 0;
    border-radius: 0;
    background: var(--gold-400);
    transition: width 0.28s var(--ease), background-color 0.28s var(--ease);
  }
  .page-about .about-flow__step:hover::before,
  .page-about .about-flow__step:focus-visible::before {
    width: 62px;
    background: var(--magenta-500);
    box-shadow: none;
  }
}

/* ---------- 覆盖范围 ---------- */
.page-about .about-chart-wrap {
  margin-top: 38px;
  padding: 24px 18px;
  overflow-x: auto;
  background: linear-gradient(160deg, rgba(18, 39, 30, 0.86), rgba(6, 17, 13, 0.94));
  border: 1px solid var(--about-hairline);
  box-shadow: var(--shadow-card);
  -webkit-overflow-scrolling: touch;
}
.page-about .about-chart {
  display: block;
  width: 100%;
  min-width: 620px;
  height: auto;
}
.page-about .about-chart__label {
  font-family: var(--font-body);
  font-size: 19px;
  fill: var(--ash-300);
}
.page-about .about-chart__value {
  font-family: var(--font-mono);
  font-size: 18px;
  fill: var(--gold-200);
}
.page-about .about-chart__bar {
  transition: filter 0.24s var(--ease);
}
.page-about .about-chart__row:hover .about-chart__bar {
  filter: drop-shadow(0 0 8px rgba(227, 194, 122, 0.55));
}
.page-about .about-chart__row:hover .about-chart__value {
  fill: var(--cyan-400);
}
.page-about .about-chart__note {
  margin: 22px 0 0;
  max-width: 76ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--ash-300);
}
.page-about .about-chart__note a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid var(--jade-line);
  transition: border-color 0.2s var(--ease);
}
.page-about .about-chart__note a:hover {
  border-bottom-color: var(--cyan-400);
}

/* ---------- 互校与盘点 ---------- */
.page-about .about-verify__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}
@media (min-width: 900px) {
  .page-about .about-verify__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 3fr);
    gap: 52px;
  }
}
.page-about .about-ledger {
  padding: 26px 22px;
  background: var(--about-card-bg);
  border: 1px solid var(--about-hairline);
  box-shadow: var(--shadow-card);
}
.page-about .about-ledger__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--gold-200);
}
.page-about .about-ledger__list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-ledger__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--jade-line);
}
.page-about .about-ledger__label {
  font-size: 0.92rem;
  color: var(--ash-300);
}
.page-about .about-ledger__num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--gold-400);
}
.page-about .about-ledger__total {
  margin: 18px 0 0;
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  color: var(--ash-500);
}
.page-about .about-ledger__total .num {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--cyan-400);
}

/* ---------- 现场为准 ---------- */
.page-about .about-live__inner {
  max-width: 74ch;
  padding: 32px 24px 32px 22px;
  background: linear-gradient(150deg, rgba(18, 39, 30, 0.72), rgba(6, 17, 13, 0.9));
  border-left: 4px solid var(--gold-400);
  border-top: 1px solid var(--jade-line);
  border-right: 1px solid var(--jade-line);
  border-bottom: 1px solid var(--jade-line);
}
.page-about .about-live__prose p {
  color: var(--ash-300);
}

/* ---------- 接下来 ---------- */
.page-about .about-next {
  padding: 64px 0 82px;
}
.page-about .about-next__frame {
  padding: 36px 24px 32px;
  background: linear-gradient(160deg, rgba(18, 39, 30, 0.88), rgba(6, 17, 13, 0.96));
}
.page-about .about-next__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold-200);
}
.page-about .about-next__lede {
  margin: 0 0 26px;
  max-width: 60ch;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--ash-300);
}
.page-about .about-next__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 1px;
  list-style: none;
  background: var(--about-hairline);
}
@media (min-width: 720px) {
  .page-about .about-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1060px) {
  .page-about .about-next__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-about .about-next__item {
  padding: 18px 18px 20px;
  background: rgba(6, 17, 13, 0.88);
  transition: background-color 0.24s var(--ease);
}
.page-about .about-next__item:hover {
  background: rgba(18, 39, 30, 0.92);
}
.page-about .about-next__link {
  display: block;
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--gold-200);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-about .about-next__link:hover {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}
.page-about .about-next__hint {
  display: block;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--ash-500);
}
<<<END>>>