.page-about {
  --about-track-gap: clamp(20px, 3vw, 34px);
  display: block;
  background: var(--cream);
  color: var(--soot);
}

.page-about .about-crumbs {
  padding: 0 0 clamp(20px, 3vw, 32px);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--grey);
}

.page-about .about-crumbs a {
  color: var(--cream);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-about .about-crumbs a:hover,
.page-about .about-crumbs a:focus-visible {
  color: var(--turf);
  border-bottom-color: var(--turf);
}

.page-about .about-crumbs [aria-current="page"] {
  color: var(--turf);
}

.page-about .about-marker {
  color: var(--turf);
  margin-bottom: 14px;
}

.page-about .about-marker--soot {
  color: var(--shot);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  padding-bottom: clamp(48px, 7vw, 88px);
  overflow: hidden;
}

.page-about .about-hero__grid {
  align-items: start;
  gap: clamp(28px, 5vw, 56px);
}

.page-about .about-hero__title {
  font-style: italic;
  transform: var(--slant);
  transform-origin: left center;
  color: var(--cream);
  margin-bottom: 22px;
}

.page-about .about-hero__lede {
  color: var(--grey);
  max-width: 58ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

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

.page-about .about-hero__figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-about .about-metrics {
  margin-top: clamp(36px, 5vw, 60px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-metrics .metric-strip__value {
  color: var(--sub);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-about .about-metrics .metric-strip__label {
  color: var(--grey);
}

/* ---------- 看台层说明 ---------- */

.page-about .about-seat__grid {
  align-items: start;
  gap: clamp(28px, 5vw, 56px);
}

.page-about .about-seat__main .prose + .prose {
  margin-top: 18px;
}

.page-about .about-seat__aside {
  align-self: stretch;
  padding: clamp(20px, 3vw, 30px);
  border-radius: 0;
}

.page-about .about-seat__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-about .about-seat__list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.page-about .about-seat__list li:last-child {
  border-bottom: 0;
}

.page-about .about-seat__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--shot);
  letter-spacing: 0.06em;
}

.page-about .about-seat__label {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--soot);
}

/* ---------- 起点 ---------- */

.page-about .about-origin {
  border-top: 1px solid var(--line);
}

.page-about .about-origin__grid {
  align-items: start;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(18px, 3vw, 28px);
}

.page-about .about-origin__copy .prose + .prose {
  margin-top: 18px;
}

.page-about .about-origin__quote {
  border-left: 3px solid var(--shot);
  padding: 6px 0 6px 20px;
}

.page-about .about-origin__quoteText {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-about .about-origin__quoteAttr {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--brown);
  margin: 0;
}

/* ---------- 时间线 ---------- */

.page-about .about-track-section {
  border-top: 1px solid var(--line);
}

.page-about .about-track__lead {
  color: var(--grey);
  max-width: 62ch;
  margin-top: 16px;
}

.page-about .track {
  position: relative;
  list-style: none;
  margin: clamp(34px, 5vw, 54px) 0 0;
  padding: 0;
}

.page-about .track::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 10px;
  bottom: 26px;
  width: 1px;
  background: linear-gradient(180deg, var(--turf) 0%, var(--line) 45%, var(--grey) 100%);
}

.page-about .track__item {
  position: relative;
  padding: 0 0 var(--about-track-gap) 44px;
}

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

.page-about .track__item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 9px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--turf);
  box-shadow: 0 0 0 4px var(--ink);
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.page-about .track__item:hover::before {
  background: var(--shot);
  box-shadow: 0 0 0 4px var(--ink), 0 0 0 6px rgba(240, 83, 45, 0.22);
}

.page-about .track__year {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--sub);
  margin-bottom: 10px;
}

.page-about .track__title {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  font-weight: 700;
  color: var(--cream);
  margin: 0 0 8px;
}

.page-about .track__text {
  max-width: 60ch;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--grey);
  margin: 0;
}

/* ---------- 数据团队 ---------- */

.page-about .about-crew__grid {
  align-items: start;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .about-crew__grid .prose + .prose {
  margin-top: 18px;
}

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

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

.page-about .city-band {
  margin-top: clamp(32px, 5vw, 52px);
  padding-top: clamp(24px, 4vw, 36px);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 20px;
}

.page-about .city-band__figure {
  background: var(--ink);
  padding: clamp(16px, 3vw, 26px);
  border-radius: 0;
}

.page-about .city-dots {
  display: block;
  width: 100%;
  height: auto;
  max-height: 200px;
}

.page-about .city-dots circle {
  fill: var(--turf);
  opacity: 0.85;
  transition: opacity 0.2s ease, fill 0.2s ease;
}

.page-about .city-dots circle:hover {
  fill: var(--sub);
  opacity: 1;
}

.page-about .city-band__caption {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--brown);
  max-width: 52ch;
}

.page-about .city-band__caption .stat-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--shot);
}

/* ---------- 覆盖范围 ---------- */

.page-about .about-scope__lead {
  margin-top: 16px;
  max-width: 64ch;
}

.page-about .about-scope__grid {
  margin-top: clamp(28px, 4vw, 42px);
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-about .about-scope__table {
  width: 100%;
  border-collapse: collapse;
  background: var(--cream);
  font-size: 0.92rem;
}

.page-about .about-scope__table th,
.page-about .about-scope__table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.page-about .about-scope__table thead th {
  background: var(--ink);
  color: var(--turf);
  font-size: 12px;
  letter-spacing: 0.12em;
  font-weight: 600;
  border-bottom: 0;
}

.page-about .about-scope__table tbody th {
  font-weight: 600;
  color: var(--soot);
}

.page-about .about-scope__table .stat-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--shot);
}

.page-about .about-scope__sub {
  margin: 0 0 18px;
  color: var(--ink);
}

.page-about .about-scope__dl {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-about .about-scope__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-scope__row:last-child {
  border-bottom: 0;
}

.page-about .about-scope__row dt {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--shot);
  font-weight: 700;
}

.page-about .about-scope__row dd {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--soot);
}

/* ---------- 国内专区 ---------- */

.page-about .about-zone__grid {
  align-items: start;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .about-zone__text {
  color: var(--grey);
}

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

.page-about .about-zone__panel {
  padding: clamp(22px, 3vw, 32px);
  border-radius: 0;
}

.page-about .about-zone__sub {
  color: var(--turf);
  margin: 0 0 16px;
}

.page-about .about-zone__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-zone__list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--cream);
}

.page-about .about-zone__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--shot);
}

.page-about .about-zone__note {
  margin: 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--grey);
}

/* ---------- 编辑与客服 ---------- */

.page-about .about-editorial__grid {
  margin-top: clamp(24px, 4vw, 38px);
  gap: clamp(20px, 3vw, 32px);
  align-items: stretch;
}

.page-about .about-editorial__card {
  padding: clamp(20px, 3vw, 28px) 0 0;
  border-top: 3px solid var(--ink);
}

.page-about .about-editorial__no {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  font-weight: 800;
  line-height: 1;
  color: var(--shot);
  margin-bottom: 12px;
}

.page-about .about-editorial__sub {
  margin: 0 0 10px;
  color: var(--ink);
}

.page-about .about-editorial__card p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--soot);
}

.page-about .about-editorial__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: clamp(24px, 3vw, 34px) 0 0;
}

.page-about .about-inline {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--turf);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-inline:hover,
.page-about .about-inline:focus-visible {
  color: var(--shot);
  border-bottom-color: var(--shot);
}

/* ---------- 做事方式 ---------- */

.page-about .about-principles {
  border-top: 1px solid var(--line);
}

.page-about .about-principles__grid {
  align-items: start;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .about-principles__item {
  border-bottom: 1px solid var(--line);
}

.page-about .about-principles__item summary {
  cursor: pointer;
  padding: 18px 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.page-about .about-principles__item summary::before {
  content: "";
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  background: var(--turf);
  transition: background 0.2s ease, transform 0.2s ease;
}

.page-about .about-principles__item[open] summary::before {
  background: var(--shot);
  transform: rotate(45deg);
}

.page-about .about-principles__item summary:hover {
  color: var(--shot);
}

.page-about .about-principles__item .disclosure__body {
  padding: 0 0 20px 22px;
}

.page-about .about-principles__item .disclosure__body p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--soot);
}

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

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

/* ---------- 结尾 ---------- */

.page-about .about-cta {
  border-top: 1px solid var(--line);
}

.page-about .about-cta__grid {
  align-items: center;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-cta__title {
  color: var(--cream);
}

.page-about .about-cta__text {
  color: var(--grey);
  margin-top: 14px;
  max-width: 56ch;
}

.page-about .about-cta__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

/* ---------- 出现动效 ---------- */

@media (prefers-reduced-motion: no-preference) {
  @keyframes about-reveal {
    from {
      opacity: 0;
      transform: translateY(14px);
    }
    to {
      opacity: 1;
      transform: none;
    }
  }

  .page-about [data-reveal].is-revealed {
    animation: about-reveal 0.55s ease-out;
  }
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-about .city-band {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: center;
    gap: 32px;
  }

  .page-about .about-scope__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-about .about-crumbs {
    padding-bottom: 36px;
  }

  .page-about .track__item {
    padding-left: 60px;
  }

  .page-about .track::before {
    left: 17px;
  }

  .page-about .track__item::before {
    left: 12px;
    top: 10px;
  }

  .page-about .about-scope__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .city-dots {
    max-height: 230px;
  }

  .page-about .about-cta__actions {
    align-items: stretch;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>