.page-about .about-hero__grid {
  display: grid;
  gap: 28px;
  margin-top: 26px;
}

.page-about .about-hero__lead .exhibit {
  margin: 0 0 10px;
}

.page-about .about-hero__lead .h1 {
  margin: 0 0 16px;
}

.page-about .about-hero__lead .lede {
  margin: 0;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  clip-path: var(--cut);
  align-self: end;
}

.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  background: var(--c-snow);
}

.page-about .about-fact__num {
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-deep);
  line-height: 1.1;
}

.page-about .about-fact__label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-rock);
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
    align-items: end;
  }
}

/* 生产基地横幅 */
.page-about .about-banner {
  padding: 8px 0 0;
}

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

/* 章节跳转 */
.page-about .about-jump {
  padding: 40px 0 8px;
}

.page-about .about-jump__title {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-rock);
}

.page-about .about-jump__list {
  list-style: none;
  margin: 0;
  padding: 0 0 12px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-jump__list::-webkit-scrollbar {
  display: none;
}

.page-about .about-jump__link {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--c-ink);
  background: var(--c-snow);
  border: 1px solid var(--line);
  clip-path: var(--cut-sm);
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .about-jump__link:hover,
.page-about .about-jump__link:focus-visible {
  background: var(--c-mist);
  border-color: var(--c-ochre);
  color: var(--c-bark);
}

/* 分屏主体 */
.page-about .about-body {
  padding-top: 24px;
}

.page-about .about-stage {
  display: grid;
  gap: 32px;
}

@media (min-width: 1000px) {
  .page-about .about-stage {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }
}

.page-about .about-timeline {
  padding: 4px 0 0;
}

.page-about .about-timeline__annot {
  position: relative;
  margin: 0 0 6px;
  padding-left: 26px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-bark);
}

.page-about .about-timeline__annot::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 18px;
  height: 1px;
  background: var(--c-ochre);
}

.page-about .about-timeline__title {
  margin: 8px 0 16px;
  padding-left: 26px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-deep);
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: linear-gradient(to bottom, rgba(181, 129, 63, 0.85), rgba(181, 129, 63, 0.08));
}

.page-about .about-node a {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "no label"
    ". year";
  gap: 2px 10px;
  padding: 10px 10px 10px 26px;
  text-decoration: none;
  color: var(--c-ink);
  transition: background-color 0.18s var(--ease);
}

.page-about .about-node a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 9px;
  height: 9px;
  box-sizing: border-box;
  border: 2px solid var(--c-ochre);
  border-radius: 50%;
  background: var(--c-snow);
  transition: background-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-about .about-node a:hover,
.page-about .about-node a:focus-visible {
  background: rgba(214, 228, 233, 0.55);
}

.page-about .about-node a:hover::before,
.page-about .about-node a:focus-visible::before {
  background: var(--c-amber);
  transform: scale(1.15);
}

.page-about .about-node__no {
  grid-area: no;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-ochre);
}

.page-about .about-node__label {
  grid-area: label;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.page-about .about-node__year {
  grid-area: year;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-rock);
}

@media (max-width: 999px) {
  .page-about .about-timeline__list {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(148px, max-content);
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 10px;
    scrollbar-width: thin;
  }

  .page-about .about-timeline__list::before {
    display: none;
  }

  .page-about .about-node a {
    grid-template-areas:
      "no label"
      "year year";
    padding: 10px 14px;
    background: var(--c-snow);
    border: 1px solid var(--line);
    clip-path: var(--cut-sm);
  }

  .page-about .about-node a::before {
    display: none;
  }
}

/* 叙事流 */
.page-about .about-flow {
  display: grid;
  gap: 56px;
}

@media (min-width: 1000px) {
  .page-about .about-flow {
    gap: 84px;
  }
}

.page-about .about-block {
  scroll-margin-top: calc(var(--bar-h) + 24px);
}

.page-about .about-block .exhibit {
  margin: 0 0 8px;
}

.page-about .about-block .h2 {
  margin: 0 0 12px;
}

.page-about .about-block .tick-rule {
  margin: 0 0 22px;
}

.page-about .about-block .prose {
  margin: 0 0 16px;
}

.page-about .about-block .prose:last-child {
  margin-bottom: 0;
}

.page-about .about-figure {
  margin: 26px 0;
}

/* 结果条 */
.page-about .about-outcome {
  display: flex;
  gap: 12px;
  align-items: baseline;
  margin: 24px 0 0;
  padding: 14px 18px;
  background: var(--c-mist);
  clip-path: var(--cut-sm);
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-ink);
}

.page-about .about-outcome__tag {
  flex: none;
  padding: 2px 8px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-deep);
  background: var(--c-amber);
}

/* 旁注折叠 */
.page-about .about-fold {
  margin: 22px 0 0;
  padding: 12px 18px;
  border-left: 2px solid var(--c-ochre);
  background: rgba(214, 228, 233, 0.45);
  clip-path: var(--cut-sm);
}

.page-about .about-fold__summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-bark);
}

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

.page-about .about-fold__summary::after {
  content: "＋";
  margin-left: 8px;
  color: var(--c-ochre);
}

.page-about .about-fold[open] .about-fold__summary::after {
  content: "－";
}

.page-about .about-fold__text {
  margin: 8px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-rock);
}

/* 团队分工标签页 */
.page-about .about-team {
  margin: 28px 0 0;
}

.page-about .about-team .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-team .tab {
  appearance: none;
  padding: 8px 14px;
  font: inherit;
  font-size: 14px;
  color: var(--c-ink);
  background: var(--c-snow);
  border: 1px solid var(--line);
  cursor: pointer;
  clip-path: var(--cut-sm);
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .about-team .tab:hover {
  border-color: var(--c-ochre);
}

.page-about .about-team .tab[aria-selected="true"] {
  background: var(--c-deep);
  border-color: var(--c-deep);
  color: var(--c-snow);
}

.page-about .about-team .tabs__panel {
  padding: 0 0 4px;
}

.page-about .about-team .tabs__panel .prose {
  margin: 0;
  max-width: 52ch;
}

.page-about .about-team__lead {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
}

.page-about .about-team__num {
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-deep);
  line-height: 1;
}

/* 资质卡片 */
.page-about .about-cred {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

@media (min-width: 780px) {
  .page-about .about-cred {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .about-cred__card {
  position: relative;
  padding: 22px 22px 20px;
  background: var(--c-snow);
  border: 1px solid var(--line);
  clip-path: var(--cut);
  outline-offset: 4px;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-about .about-cred__card:hover,
.page-about .about-cred__card:focus-visible {
  background: #ffffff;
  border-color: var(--c-ochre);
}

.page-about .about-cred__id {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-ochre);
}

.page-about .about-cred__card .h3 {
  margin: 0 0 10px;
}

.page-about .about-cred__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-rock);
}

.page-about .about-cred__scene {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-bark);
  transition: max-height 0.28s var(--ease), opacity 0.2s var(--ease), margin-top 0.28s var(--ease);
}

.page-about .about-cred__card:hover .about-cred__scene,
.page-about .about-cred__card:focus-within .about-cred__scene,
.page-about .about-cred__card:focus-visible .about-cred__scene {
  max-height: 240px;
  opacity: 1;
  margin-top: 12px;
}

/* 服务承诺 */
.page-about .about-promise {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-promise li {
  display: grid;
  gap: 6px 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 780px) {
  .page-about .about-promise li {
    grid-template-columns: 72px minmax(0, 1fr);
    align-items: start;
  }
}

.page-about .about-promise__no {
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-ochre);
  line-height: 1;
}

.page-about .about-promise .h3 {
  margin: 0 0 6px;
}

.page-about .about-promise .prose {
  margin: 0;
  max-width: 56ch;
}

/* 收尾 */
.page-about .about-cta__inner {
  max-width: 760px;
}

.page-about .about-cta__inner .exhibit {
  margin: 0 0 10px;
}

.page-about .about-cta__inner .h2 {
  margin: 0 0 12px;
}

.page-about .about-cta__inner .tick-rule {
  margin: 0 0 18px;
}

.page-about .about-cta__inner .prose {
  margin: 0 0 24px;
  max-width: 46ch;
}

.page-about .about-cta__inner .cluster {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
<<<END>>>