.page-about {
  --ab-rail-w: 168px;
  background: var(--porcelain-50);
  color: var(--ink-900);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  padding-top: 40px;
  padding-bottom: 56px;
}
.page-about .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--ink-400);
  margin-bottom: 40px;
}
.page-about .crumbs a {
  color: var(--ink-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--vermilion-500);
  border-bottom-color: var(--vermilion-500);
}
.page-about .ab-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  border-top: 1px solid var(--line-300);
  padding-top: 32px;
}
.page-about .ab-hero__title {
  font-family: var(--serif);
  font-weight: 900;
  letter-spacing: -.02em;
  font-size: clamp(34px, 6.4vw, 68px);
  line-height: 1.08;
  margin: 0 0 24px;
  max-width: 20ch;
}
.page-about .ab-hero__lead {
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink-600);
  max-width: 60ch;
  margin: 0 0 36px;
}
.page-about .ab-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-300);
}
.page-about .ab-hero__facts li {
  padding: 16px 12px 14px 0;
  border-bottom: 1px solid var(--line-300);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-about .ab-hero__facts .mono {
  font-size: 22px;
  color: var(--ink-900);
}
.page-about .ab-hero__facts li span:last-child {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-400);
}
.page-about .ab-hero__visual {
  background: var(--ink-900);
  border: 1px solid var(--ink-900);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 260px;
}
.page-about .ab-hero__visual svg {
  width: 100%;
  height: auto;
  max-height: 420px;
  color: var(--on-ink-2);
}
.page-about .ab-grid {
  color: var(--hair-dark);
}
.page-about .ab-ridge {
  fill: none;
  stroke: rgba(247, 244, 239, .5);
  stroke-width: 1.2;
}
.page-about .ab-ridge--2 {
  stroke: var(--bronze-600);
  stroke-width: 1.6;
}
.page-about .ab-node {
  fill: var(--vermilion-500);
}
.page-about .ab-node--b {
  fill: var(--bronze-600);
}
.page-about .ab-axis {
  stroke: var(--hair-dark);
  stroke-width: 1;
}
.page-about .ab-svg-label {
  fill: var(--on-ink-1);
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: .18em;
}
.page-about .ab-svg-mono {
  fill: var(--on-ink-3);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
}

/* ---------- 通用章节 ---------- */
.page-about .ab-sec-lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-400);
  max-width: 62ch;
  margin: 12px 0 0;
}

/* ---------- 品牌缘起 ---------- */
.page-about .ab-origin {
  background: var(--porcelain-100);
  border-top: 1px solid var(--line-300);
  border-bottom: 1px solid var(--line-300);
}
.page-about .ab-origin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
.page-about .ab-origin__media {
  margin: 0;
  width: 100%;
}
.page-about .ab-origin__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-about .ab-quote {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-top: 28px;
  padding: 18px 20px;
  background: var(--bronze-100);
  border-left: 2px solid var(--bronze-600);
}
.page-about .ab-quote p {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-800);
}
.page-about .ab-quote .status-dot {
  margin-top: 8px;
  flex: none;
}

/* ---------- 时间线 ---------- */
.page-about .ab-tl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 40px;
}
.page-about .ab-tl__years {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-about .ab-year {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 14px;
  border: 1px solid var(--line-300);
  text-decoration: none;
  color: var(--ink-400);
  background: var(--porcelain-50);
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-about .ab-year .mono {
  font-size: 14px;
  color: var(--ink-900);
  letter-spacing: .06em;
}
.page-about .ab-year span:last-child {
  font-size: 11px;
  letter-spacing: .14em;
}
.page-about .ab-year:hover,
.page-about .ab-year:focus-visible,
.page-about .ab-year.is-active {
  border-color: var(--vermilion-500);
  color: var(--vermilion-500);
}
.page-about .ab-year.is-active .mono {
  color: var(--vermilion-500);
}

.page-about .ab-tl__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line-300);
}
.page-about .ab-tl__item {
  position: relative;
  padding: 0 0 34px 26px;
}
.page-about .ab-tl__item:last-child {
  padding-bottom: 0;
}
.page-about .ab-tl__dot {
  position: absolute;
  left: -5px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bronze-600);
  box-shadow: 0 0 0 4px var(--porcelain-50);
}
.page-about .ab-tl__item:last-child .ab-tl__dot {
  background: var(--vermilion-500);
}
.page-about .ab-tl__h {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.5;
  margin: 0 0 10px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}
.page-about .ab-tl__num {
  font-size: 14px;
  color: var(--bronze-600);
  letter-spacing: .08em;
}
.page-about .ab-tl__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-600);
  max-width: 66ch;
}

/* ---------- 团队 ---------- */
.page-about .ab-team {
  background: var(--porcelain-100);
  border-top: 1px solid var(--line-300);
  border-bottom: 1px solid var(--line-300);
}
.page-about .ab-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}
.page-about .ab-split__media {
  margin: 0;
}
.page-about .ab-split__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-about .ab-roles {
  margin-top: 44px;
  border-top: 1px solid var(--line-300);
  padding-top: 24px;
}
.page-about .ab-roles__h {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--ink-400);
  margin: 0 0 16px;
}
.page-about .ab-roles__acc {
  border-bottom: 1px solid var(--line-300);
}
.page-about .ab-roles__acc .acc__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 4px;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--sans);
  font-size: 16px;
  color: var(--ink-900);
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}
.page-about .ab-roles__acc .acc__trigger:hover,
.page-about .ab-roles__acc .acc__trigger:focus-visible {
  color: var(--vermilion-500);
}
.page-about .ab-roles__acc .acc__mark {
  margin-left: auto;
  font-family: var(--mono);
  color: var(--ink-400);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-about .ab-roles__acc .acc__trigger[aria-expanded="true"] .acc__mark {
  transform: rotate(45deg);
  color: var(--vermilion-500);
}
.page-about .ab-roles__acc .acc__panel p {
  margin: 0 0 18px;
  padding-left: 24px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-600);
  max-width: 68ch;
}
.page-about .ab-roles__acc .status-dot {
  flex: none;
}

/* ---------- 适配与内容 ---------- */
.page-about .ab-fleet__bento {
  margin-top: 36px;
}
.page-about .ab-fleet__lead h3 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 26px;
  line-height: 1.3;
  margin: 14px 0 12px;
}
.page-about .ab-fleet__lead p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--on-ink-2);
}
.page-about .ab-fleet__cell h3 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 18px;
  line-height: 1.4;
  margin: 14px 0 12px;
}
.page-about .ab-fleet__cell p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-600);
}
.page-about .ab-fleet__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.page-about .ab-fleet__list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 15px;
  color: var(--ink-600);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-300);
}
.page-about .ab-fleet__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-about .ab-fleet__list .mono {
  flex: none;
  min-width: 68px;
  color: var(--ink-900);
  font-size: 14px;
}
.page-about .ab-fleet__cell--bronze .ab-fleet__list li {
  border-bottom-color: rgba(46, 107, 94, .22);
}

.page-about .ab-fleet__figure {
  margin: 44px 0 0;
}
.page-about .ab-fleet__cap {
  display: flex;
  gap: 12px;
  align-items: baseline;
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-400);
  letter-spacing: .02em;
}
.page-about .ab-fleet__cap .mono {
  font-size: 12px;
  color: var(--bronze-600);
  letter-spacing: .08em;
  flex: none;
}

/* ---------- 合作生态 ---------- */
.page-about .ab-eco {
  background: var(--ink-900);
  color: var(--on-ink-1);
}
.page-about .ab-eco .stamp {
  color: var(--on-ink-3);
}
.page-about .ab-eco .stamp__no {
  color: var(--bronze-100);
}
.page-about .ab-eco .sec-title {
  color: var(--porcelain-50);
}
.page-about .ab-eco .prose p {
  color: var(--on-ink-2);
}
.page-about .ab-eco__panel {
  border: 1px solid var(--hair-dark);
  background: var(--ink-800);
  padding: 24px 22px;
}
.page-about .ab-eco__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.page-about .ab-eco__list li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--hair-dark);
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--on-ink-1);
}
.page-about .ab-eco__list li:last-child {
  border-bottom: 0;
}
.page-about .ab-eco__list .mono {
  flex: none;
  color: var(--bronze-100);
  font-size: 13px;
  letter-spacing: .1em;
}
.page-about .ab-eco__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--hair-dark);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--on-ink-3);
}

/* ---------- 三个入口 ---------- */
.page-about .ab-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 32px;
  border-top: 1px solid var(--line-300);
}
.page-about .ab-next__card {
  display: block;
  padding: 26px 4px 28px;
  border-bottom: 1px solid var(--line-300);
  text-decoration: none;
  color: inherit;
  transition: background-color var(--dur) var(--ease);
}
.page-about .ab-next__card:hover,
.page-about .ab-next__card:focus-visible {
  background: var(--porcelain-100);
}
.page-about .ab-next__no {
  display: block;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--bronze-600);
  margin-bottom: 12px;
}
.page-about .ab-next__card h3 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.35;
  margin: 0 0 12px;
}
.page-about .ab-next__card p {
  margin: 0 0 18px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-600);
  max-width: 52ch;
}
.page-about .ab-next__cta {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--vermilion-500);
  border-bottom: 1px solid var(--vermilion-500);
  padding-bottom: 2px;
}
.page-about .ab-next__foot {
  margin: 28px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-400);
}
.page-about .ab-next__foot a {
  color: var(--bronze-600);
  border-bottom: 1px solid var(--bronze-600);
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .ab-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .ab-hero__facts li {
    border-right: 1px solid var(--line-300);
    padding-right: 18px;
  }
  .page-about .ab-hero__facts li:last-child {
    border-right: 0;
  }
  .page-about .ab-origin__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: start;
  }
  .page-about .ab-split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 48px;
  }
  .page-about .ab-split--reverse {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }
  .page-about .ab-eco__panel {
    padding: 30px 28px;
  }
  .page-about .ab-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-bottom: 1px solid var(--line-300);
  }
  .page-about .ab-next__card {
    border-bottom: 0;
    border-right: 1px solid var(--line-300);
    padding: 30px 24px 34px;
  }
  .page-about .ab-next__card:last-child {
    border-right: 0;
  }
}

@media (min-width: 1000px) {
  .page-about .ab-hero {
    padding-top: 56px;
    padding-bottom: 72px;
  }
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: 56px;
    align-items: stretch;
  }
  .page-about .ab-tl {
    grid-template-columns: var(--ab-rail-w) minmax(0, 1fr);
    gap: 56px;
  }
  .page-about .ab-tl__rail {
    position: sticky;
    top: calc(var(--bar-h) + 28px);
    align-self: start;
  }
  .page-about .ab-tl__years {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
  }
  .page-about .ab-year {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 14px;
    border: 0;
    border-left: 1px solid var(--line-300);
    background: none;
    padding: 8px 0 8px 14px;
  }
  .page-about .ab-year:hover,
  .page-about .ab-year:focus-visible,
  .page-about .ab-year.is-active {
    border-left-color: var(--vermilion-500);
    border-left-width: 2px;
    padding-left: 13px;
  }
  .page-about .ab-fleet__bento {
    grid-template-columns: minmax(0, 5fr) minmax(0, 3.5fr) minmax(0, 3.5fr);
  }
  .page-about .ab-split__copy.prose {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-year,
  .page-about .crumbs a,
  .page-about .ab-next__card,
  .page-about .ab-roles__acc .acc__mark,
  .page-about .ab-roles__acc .acc__trigger {
    transition: none;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>