.page-about {
  --about-rail: 4.5rem;
  --about-rule: rgba(11, 42, 30, 0.16);
  --about-soft: rgba(26, 26, 23, 0.68);
  background: var(--paper-warm);
  color: var(--ink-text);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-about .crumbs {
  padding: 1.5rem 0 0;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 1.75rem 0 0;
}

.page-about .about-hero__inner {
  display: grid;
  gap: 2rem;
}

.page-about .about-hero__main .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  color: var(--pitch-green);
  margin: 0;
}

.page-about .about-hero__title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(2.3rem, 8.5vw, 4.6rem);
  line-height: 1.03;
  letter-spacing: -0.025em;
  margin: 0.75rem 0 0;
  max-width: 15ch;
  color: var(--ink-green);
}

.page-about .about-hero__lede {
  font-size: 1.0625rem;
  line-height: 1.8;
  max-width: 34em;
  color: var(--ink-text);
  margin: 1.1rem 0 0;
}

.page-about .about-hero__panel {
  background: var(--ink-green);
  border-radius: var(--radius);
  padding: 1.3rem 1.25rem 1.1rem;
}

.page-about .about-hero__panel-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange-soft);
  margin: 0 0 0.4rem;
}

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

.page-about .about-facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid rgba(245, 239, 227, 0.16);
}

.page-about .about-facts > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-facts dt {
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--on-dark-soft);
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.25rem;
  line-height: 1.1;
  color: var(--white);
}

/* ---------- 章节索引 ---------- */
.page-about .about-index {
  margin-top: 2rem;
  border-top: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-index__list {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0.85rem 0;
  min-width: max-content;
}

.page-about .about-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  color: var(--ink-text);
  text-decoration: none;
  font-size: 0.875rem;
  white-space: nowrap;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  border-bottom-color: var(--signal-orange);
  color: var(--pitch-green);
}

.page-about .about-index__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--green-mid);
}

/* ---------- 章节骨架 ---------- */
.page-about .chapter {
  border-top: 1px solid var(--about-rule);
  padding: 2.5rem 0;
  scroll-margin-top: 1.25rem;
}

.page-about .chapter__grid {
  display: grid;
  gap: 0.75rem;
}

.page-about .chapter__rail {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}

.page-about .chapter__num {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 2.1rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--green-mid);
}

.page-about .chapter__tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--about-soft);
}

.page-about .chapter__title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.8vw, 2.1rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0 0 0.9rem;
  color: var(--ink-green);
}

.page-about .chapter__body > p {
  font-size: 1rem;
  line-height: 1.78;
  margin: 0 0 1rem;
  max-width: 36em;
}

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

.page-about .link-inline {
  color: var(--pitch-green);
  text-decoration: underline;
  text-decoration-color: var(--signal-orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-about .link-inline:hover,
.page-about .link-inline:focus-visible {
  color: var(--signal-orange);
  text-decoration-color: var(--signal-orange);
}

/* ---------- 图片 ---------- */
.page-about .about-fig {
  margin: 1.75rem 0 0;
  aspect-ratio: auto;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

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

/* ---------- 团队卡片 ---------- */
.page-about .about-team {
  display: grid;
  gap: 1rem;
  margin-top: 1.4rem;
}

.page-about .about-team__card {
  background: var(--white);
  border: 1px solid var(--about-rule);
  border-top: 3px solid var(--pitch-green);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.1rem 1.25rem;
}

.page-about .about-team__count {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.9rem;
  line-height: 1;
  margin: 0;
  color: var(--pitch-green);
}

.page-about .about-team__name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.0625rem;
  margin: 0.6rem 0 0.4rem;
  color: var(--ink-green);
}

.page-about .about-team__desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--about-soft);
  margin: 0;
}

/* ---------- 数据节奏 ---------- */
.page-about .about-rhythm {
  margin: 1.5rem 0 1.2rem;
  border-top: 1px solid var(--about-rule);
  max-width: 40rem;
}

.page-about .about-rhythm__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-rhythm dt {
  font-size: 0.9375rem;
  color: var(--ink-text);
}

.page-about .about-rhythm dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1rem;
  color: var(--signal-orange);
  white-space: nowrap;
}

/* ---------- 版本时间线 ---------- */
.page-about .about-timeline {
  margin-top: 1.5rem;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-timeline .accordion__item {
  position: relative;
  padding-left: 1.5rem;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-timeline .accordion__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.45rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--paper-warm);
  border: 2px solid var(--green-mid);
  box-sizing: border-box;
}

.page-about .about-timeline .accordion__item::after {
  content: "";
  position: absolute;
  left: 0.24rem;
  top: 2.15rem;
  bottom: 0;
  width: 1px;
  background: var(--about-rule);
}

.page-about .about-timeline .accordion__item:last-child::after {
  display: none;
}

.page-about .about-timeline .accordion__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.85rem;
  width: 100%;
  padding: 1.1rem 0;
  background: none;
  border: 0;
  border-radius: 0;
  text-align: left;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.page-about .about-tl__ver {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--signal-orange);
  min-width: 3.4rem;
}

.page-about .about-tl__label {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--ink-green);
  transition: color 0.2s ease;
}

.page-about .about-timeline .accordion__trigger:hover .about-tl__label,
.page-about .about-timeline .accordion__trigger:focus-visible .about-tl__label {
  color: var(--pitch-green);
}

.page-about .about-tl__icon {
  position: relative;
  width: 1.15rem;
  height: 1.15rem;
  justify-self: end;
}

.page-about .about-tl__icon::before,
.page-about .about-tl__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--signal-orange);
  transform: translate(-50%, -50%);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-about .about-tl__icon::before {
  width: 12px;
  height: 2px;
}

.page-about .about-tl__icon::after {
  width: 2px;
  height: 12px;
}

.page-about .about-timeline .accordion__trigger[aria-expanded="true"] .about-tl__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-about .about-timeline .accordion__panel {
  padding: 0 0 1.15rem;
}

.page-about .about-timeline .accordion__panel p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--about-soft);
  max-width: 34em;
}

/* ---------- 覆盖 ---------- */
.page-about .about-coverage {
  display: grid;
  gap: 1.25rem;
  margin: 1.5rem 0 1.25rem;
}

.page-about .about-coverage__map {
  position: relative;
  height: 156px;
  border: 1px solid var(--about-rule);
  border-radius: var(--radius-sm);
  background-color: var(--paper-2);
  background-image: radial-gradient(circle, rgba(46, 139, 98, 0.55) 1.6px, transparent 1.9px);
  background-size: 18px 18px;
  background-position: 6px 6px;
  overflow: hidden;
}

.page-about .about-coverage__map::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 46%;
  background: linear-gradient(to top, rgba(20, 87, 58, 0.24), transparent);
}

.page-about .about-coverage__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-about .about-coverage__list li {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--about-rule);
  font-size: 0.9375rem;
  line-height: 1.6;
}

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

.page-about .about-coverage__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.375rem;
  line-height: 1;
  color: var(--pitch-green);
  min-width: 4.2rem;
}

/* ---------- 服务规模（深色带） ---------- */
.page-about .about-scale {
  background: var(--ink-green);
  color: var(--on-dark);
  padding: 2.6rem 0;
}

.page-about .about-scale .chapter {
  border-top: 0;
  padding: 0;
}

.page-about .about-scale .chapter__num {
  color: var(--orange-soft);
}

.page-about .about-scale .chapter__tag {
  color: var(--on-dark-soft);
}

.page-about .about-scale .chapter__title {
  color: var(--paper-warm);
}

.page-about .about-scale .chapter__body > p {
  color: var(--on-dark);
}

.page-about .about-scale__stats {
  list-style: none;
  margin: 1.5rem 0 1.25rem;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-about .about-scale__stats li {
  border: 1px solid rgba(245, 239, 227, 0.22);
  border-radius: var(--radius-sm);
  padding: 0.95rem 1.05rem;
}

.page-about .about-scale__val {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.75rem;
  line-height: 1.1;
  color: var(--white);
}

.page-about .about-scale__key {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--on-dark-soft);
}

/* ---------- 里程碑 ---------- */
.page-about .about-miles {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .about-miles li {
  background: var(--white);
  border: 1px solid var(--about-rule);
  border-left: 3px solid var(--signal-orange);
  border-radius: var(--radius-sm);
  padding: 1.05rem 1.15rem;
}

.page-about .about-miles__name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.0625rem;
  margin: 0 0 0.45rem;
  color: var(--ink-green);
}

.page-about .about-miles p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--about-soft);
  max-width: 34em;
}

/* ---------- 结尾行动区 ---------- */
.page-about .about-next {
  background: var(--blue-deep);
  color: var(--on-dark);
  padding: 2.6rem 0 3rem;
}

.page-about .about-next__title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.8vw, 2.05rem);
  line-height: 1.2;
  margin: 0;
  color: var(--paper-warm);
}

.page-about .about-next__text {
  font-size: 1rem;
  line-height: 1.78;
  max-width: 34em;
  margin: 0.85rem 0 0;
  color: var(--on-dark);
}

.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.page-about .about-next .btn--ghost {
  color: var(--paper-warm);
  border-color: rgba(245, 239, 227, 0.45);
}

.page-about .about-next .btn--ghost:hover,
.page-about .about-next .btn--ghost:focus-visible {
  background: rgba(245, 239, 227, 0.12);
  color: var(--white);
}

/* ---------- 入场动效 ---------- */
.page-about [data-reveal] {
  opacity: 1;
}

@media (prefers-reduced-motion: no-preference) {
  .page-about [data-reveal]:not([data-reveal="shown"]) {
    opacity: 0;
    transform: translateY(14px);
  }

  .page-about [data-reveal] {
    transition: opacity 0.45s ease, transform 0.45s ease;
  }

  .page-about [data-reveal="shown"] {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 640px) {
  .page-about .about-scale__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-about .about-coverage {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 1.75rem;
    align-items: center;
  }

  .page-about .about-coverage__map {
    height: 190px;
  }

  .page-about .about-miles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-about .about-team {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-about .about-team__card--lead {
    grid-column: span 5;
  }

  .page-about .about-team__card--mid {
    grid-column: span 4;
  }

  .page-about .about-team__card--last {
    grid-column: span 3;
  }
}

/* ---------- 桌面端 ---------- */
@media (min-width: 860px) {
  .page-about .chapter {
    padding: 3.25rem 0;
  }

  .page-about .chapter__grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 0 3rem;
  }

  .page-about .chapter__rail {
    display: block;
    padding-top: 0.2rem;
  }

  .page-about .chapter__num {
    display: block;
    font-size: 3.3rem;
  }

  .page-about .chapter__tag {
    display: block;
    margin-top: 0.55rem;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: 2.25rem;
  }

  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.82fr);
    gap: 3.5rem;
    align-items: start;
  }

  .page-about .about-hero__panel {
    padding: 1.5rem 1.4rem 1.25rem;
  }

  .page-about .about-index__list {
    gap: 2.25rem;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</parameter>
</result>