.page-about {
  --about-top: 108px;
}

.page-about .about-crumb {
  padding-top: 116px;
}

/* 首屏 */
.page-about .about-hero {
  display: grid;
  gap: 36px;
  padding-top: 28px;
}

.page-about .about-hero__text {
  max-width: 44rem;
}

.page-about .about-hero .eyebrow {
  margin: 0 0 16px;
}

.page-about .about-hero .title-xl {
  margin: 0;
}

.page-about .about-hero .lede {
  margin: 22px 0 0;
}

.page-about .about-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.page-about .about-stats li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 14px 20px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-stats li:nth-child(even) {
  padding-left: 16px;
  border-left: 1px solid var(--line-soft);
}

.page-about .about-stats__num {
  font-family: var(--font-serif);
  font-size: 32px;
  line-height: 1;
  color: var(--rape);
  font-variant-numeric: tabular-nums;
}

.page-about .about-stats__label {
  font-size: 12px;
  line-height: 1.4;
  color: var(--t2);
  letter-spacing: .04em;
}

/* 起点章节：左栏年份 */
.page-about .about-aside {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.page-about .about-year {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 40px;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--jade);
  font-variant-numeric: tabular-nums;
}

.page-about .about-aside__note {
  margin: 0;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--t2);
}

.page-about .about-body .title-lg {
  margin: 0 0 20px;
}

/* 编辑流程 */
.page-about .about-flow__head {
  display: grid;
  gap: 28px;
  margin-bottom: 44px;
}

.page-about .about-flow__head .eyebrow {
  margin: 0 0 14px;
}

.page-about .about-flow__head .title-lg {
  margin: 0;
}

.page-about .about-flow__head .lede {
  margin: 16px 0 0;
}

.page-about .about-flow__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.page-about .flow-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--line);
}

.page-about .flow-step {
  position: relative;
  padding: 26px 0 26px 22px;
  border-left: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  transition: border-color var(--dur) var(--ease);
}

.page-about .flow-step::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 32px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--jade-deep);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .flow-step__time {
  display: block;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--t2);
}

.page-about .flow-step__title {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--t1);
}

.page-about .flow-step__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--t2);
}

.page-about .flow-step__out {
  display: block;
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.45;
  color: var(--jade);
  opacity: .5;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .flow-step:hover::before,
.page-about .flow-step:focus-within::before {
  background: var(--jade);
  border-color: var(--jade);
  transform: scale(1.3);
}

.page-about .flow-step:hover .flow-step__out,
.page-about .flow-step:focus-within .flow-step__out {
  opacity: 1;
  transform: translateY(-2px);
}

/* 团队：整宽信息带 + 岗位卡 */
.page-about .about-band {
  position: relative;
  overflow: hidden;
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-band img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
  opacity: .85;
}

.page-about .about-band::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(10, 18, 48, .25) 0%, rgba(10, 18, 48, .6) 55%, rgba(10, 18, 48, .96) 100%);
}

.page-about .about-band__text {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  z-index: 1;
  width: 100%;
  margin-inline: auto;
  padding-bottom: 26px;
}

.page-about .about-band__text .eyebrow {
  margin: 0;
}

.page-about .about-band__line {
  margin: 12px 0 0;
  max-width: 22em;
  font-size: 20px;
  line-height: 1.45;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--t1);
}

.page-about .about-team__body {
  margin-top: 56px;
}

.page-about .about-team__body .title-lg {
  margin: 0 0 18px;
}

.page-about .role-grid {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .role-card {
  position: relative;
  padding: 22px 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .role-card:hover {
  border-color: var(--jade-deep);
  transform: translateY(-2px);
}

.page-about .role-card__num {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--rape);
  font-variant-numeric: tabular-nums;
}

.page-about .role-card__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--t1);
}

.page-about .role-card__desc {
  margin: 0;
  padding-right: 34px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--t2);
}

/* 发展历程：年份轴 + 叙事 */
.page-about .about-timeline .title-lg {
  margin: 0;
}

.page-about .about-timeline .lede {
  margin: 16px 0 0;
}

.page-about .about-timeline__figure {
  margin: 32px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.page-about .about-timeline__grid {
  margin-top: 40px;
}

.page-about .about-axis ol {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 20px;
  overflow-x: auto;
}

.page-about .about-axis li {
  flex: 0 0 auto;
}

.page-about .about-axis a {
  display: inline-block;
  padding-bottom: 6px;
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--t2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  font-variant-numeric: tabular-nums;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-about .stage {
  scroll-margin-top: 120px;
  padding: 0 0 28px;
  border-bottom: 1px solid var(--line-soft);
  transition: border-color var(--dur) var(--ease);
}

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

.page-about .stage + .stage {
  margin-top: 28px;
}

.page-about .stage__year {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1;
  color: var(--jade);
  font-variant-numeric: tabular-nums;
}

.page-about .stage__title {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--t1);
}

.page-about .stage__text {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.6;
  color: var(--t2);
}

.page-about .stage:target {
  border-color: var(--jade-deep);
}

.page-about .stage:target .stage__title {
  color: var(--jade);
}

/* 合作生态 */
.page-about .about-partners .title-lg {
  margin: 0;
}

.page-about .about-partners .lede {
  margin: 16px 0 0;
}

.page-about .partner-map {
  margin-top: 36px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 16px;
}

.page-about .partner-node {
  position: relative;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .partner-node:hover {
  border-color: var(--jade);
  box-shadow: 0 0 0 1px rgba(31, 200, 180, .18);
}

.page-about .partner-node__num {
  display: block;
  font-family: var(--font-serif);
  font-size: 34px;
  line-height: 1;
  color: var(--jade);
  font-variant-numeric: tabular-nums;
}

.page-about .partner-node__name {
  margin: 12px 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--t1);
}

.page-about .partner-node__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--t2);
}

.page-about .partner-node--core {
  border-color: var(--jade-deep);
  background: linear-gradient(150deg, rgba(31, 200, 180, .18), rgba(10, 18, 48, .25));
}

.page-about .partner-node--core .partner-node__num {
  color: var(--rape);
}

.page-about .about-partners__note {
  margin: 28px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--t2);
  max-width: 34em;
}

.page-about .about-partners__note a {
  color: var(--jade);
}

/* 纠错与联系 */
.page-about .about-contact__grid {
  display: grid;
  gap: 32px;
  padding: 28px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(31, 200, 180, .10), rgba(10, 18, 48, 0) 62%), var(--ink-2);
}

.page-about .about-contact__grid .eyebrow {
  margin: 0 0 14px;
}

.page-about .about-contact__grid .title-lg {
  margin: 0 0 18px;
}

.page-about .about-hours {
  margin: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-about .about-hours__row {
  display: grid;
  gap: 5px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-about .about-hours dt {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--t2);
}

.page-about .about-hours dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--t1);
  word-break: break-word;
}

.page-about .about-contact__actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 响应式 */
@media (min-width: 620px) {
  .page-about .role-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-stats li {
    padding: 24px 22px 24px 0;
    border-bottom: 0;
  }

  .page-about .about-stats li:nth-child(even) {
    padding-left: 22px;
  }

  .page-about .about-stats li + li {
    padding-left: 22px;
    border-left: 1px solid var(--line-soft);
  }

  .page-about .about-stats__num {
    font-size: 40px;
  }
}

@media (min-width: 820px) {
  .page-about .partner-map {
    position: relative;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    align-items: stretch;
  }

  .page-about .partner-map::before {
    content: "";
    position: absolute;
    left: 8%;
    right: 8%;
    top: 50%;
    height: 1px;
    background: var(--line);
  }

  .page-about .partner-node {
    z-index: 1;
  }
}

@media (min-width: 860px) {
  .page-about .flow-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
    border-top: 0;
  }

  .page-about .flow-step {
    padding: 28px 14px 0 0;
    border-left: 0;
    border-bottom: 0;
    border-top: 1px solid var(--line);
  }

  .page-about .flow-step::before {
    left: 0;
    top: -4.5px;
  }

  .page-about .flow-step:hover,
  .page-about .flow-step:focus-within {
    border-top-color: var(--jade);
  }
}

@media (min-width: 900px) {
  .page-about .about-aside {
    position: sticky;
    top: var(--about-top);
    align-self: start;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 0;
  }

  .page-about .about-year {
    font-size: 52px;
  }

  .page-about .about-flow__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 56px;
    align-items: end;
  }

  .page-about .about-band img {
    height: 360px;
  }

  .page-about .about-band__line {
    font-size: 28px;
  }

  .page-about .about-axis {
    position: sticky;
    top: var(--about-top);
    align-self: start;
  }

  .page-about .about-axis ol {
    flex-direction: column;
    gap: 22px;
    overflow: visible;
  }

  .page-about .about-axis a {
    font-size: 40px;
  }

  .page-about .stage__year {
    display: none;
  }

  .page-about .stage__title {
    font-size: 22px;
  }

  .page-about .about-contact__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 48px;
    padding: 40px 36px;
  }
}

@media (min-width: 1000px) {
  .page-about .role-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .flow-step,
  .page-about .flow-step::before,
  .page-about .flow-step__out,
  .page-about .role-card,
  .page-about .partner-node,
  .page-about .about-axis a,
  .page-about .stage {
    transition: none;
  }

  .page-about .role-card:hover {
    transform: none;
  }

  .page-about .flow-step:hover .flow-step__out,
  .page-about .flow-step:focus-within .flow-step__out {
    transform: none;
  }
}
<<<END>>>