.page-about {
  --about-pad: clamp(40px, 6.5vw, 88px);
  --about-gap: clamp(24px, 4vw, 56px);
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-about .breadcrumb {
  padding: clamp(16px, 3vw, 28px) 0 0;
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .1em;
  color: var(--slate);
}

.page-about .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-about .breadcrumb__link {
  color: var(--lime);
  text-decoration: none;
}

.page-about .breadcrumb__link:hover {
  text-decoration: underline;
}

/* ---------- 刊头标题 ---------- */
.about-mast {
  padding: clamp(28px, 5vw, 64px) 0 clamp(20px, 3vw, 36px);
}

.about-mast__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 14px;
}

.about-mast__title {
  margin: 0;
  font-size: var(--fs-display);
  font-weight: 900;
  line-height: .98;
  letter-spacing: -.03em;
  color: var(--paper);
}

.about-mast__title em {
  font-style: normal;
  color: var(--lime);
}

.about-mast__annotation {
  display: none;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .18em;
  color: var(--slate);
}

/* ---------- 导语与首图 ---------- */
.about-intro {
  padding-bottom: var(--about-pad);
}

.about-intro__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: start;
}

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

.about-intro__media .media__frame {
  aspect-ratio: 4 / 3;
}

.about-intro__text {
  display: grid;
  gap: 18px;
}

.about-intro__media + .about-intro__text .lede {
  margin: 0;
}

.about-intro__body {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(242, 239, 230, .86);
  max-width: 62ch;
}

.about-intro__facts {
  margin-top: 4px;
}

/* ---------- 章节骨架 ---------- */
.page-about .about-chapter {
  padding: var(--about-pad) 0;
  border-top: 1px solid var(--rule-soft);
}

.about-chapter__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.about-chapter__index {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .18em;
  color: var(--lime);
  padding-top: .7em;
}

.about-chapter__title {
  margin: 0;
  font-size: var(--fs-xl);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--paper);
}

.about-chapter__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
}

.about-chapter__note {
  margin: 0 0 16px;
  padding-left: 14px;
  border-left: 1px solid var(--copper);
  font-size: var(--fs-xs);
  line-height: 1.8;
  color: var(--slate);
}

.about-chapter__lead {
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(242, 239, 230, .86);
  max-width: 62ch;
}

.about-chapter__text p {
  margin: 0 0 .9em;
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: rgba(242, 239, 230, .9);
  max-width: 62ch;
}

.about-chapter__text p:last-child {
  margin-bottom: 0;
}

/* ---------- 团队条形 ---------- */
.team-bars {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 4px;
}

.team-bar {
  padding: 16px 0;
  border-top: 1px solid var(--rule-soft);
}

.team-bar__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.team-bar__name {
  margin: 0;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.team-bar__count {
  font-size: var(--fs-lg);
  color: var(--lime);
  line-height: 1;
}

.team-bar__track {
  position: relative;
  height: 8px;
  margin-top: 10px;
  background: rgba(59, 90, 80, .5);
}

.team-bar__fill {
  display: block;
  height: 100%;
  background: var(--slate);
  transition: background 180ms var(--ease), filter 180ms var(--ease);
}

.team-bar--edit .team-bar__fill {
  width: 42%;
  background: var(--lime);
}

.team-bar--check .team-bar__fill {
  width: 16%;
  background: var(--copper);
}

.team-bar--tech .team-bar__fill {
  width: 29%;
  background: var(--slate);
}

.team-bar--ops .team-bar__fill {
  width: 13%;
  background: var(--clay);
}

.team-bar:hover .team-bar__fill {
  filter: brightness(1.25);
}

.team-bar__role {
  margin: 12px 0 0;
  font-size: var(--fs-xs);
  line-height: 1.75;
  color: var(--slate);
  max-width: 48ch;
}

/* ---------- 工序流程 ---------- */
.flow-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: start;
}

.stages {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line);
}

.stages__item {
  position: relative;
  padding-left: 22px;
}

.stages__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 20px;
  width: 9px;
  height: 9px;
  background: var(--lime);
}

.stage__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
}

.stage__summary::-webkit-details-marker {
  display: none;
}

.stage__num {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .12em;
  color: var(--copper);
}

.stage__title {
  display: block;
  font-size: var(--fs-md);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
  transition: color 180ms var(--ease);
}

.stage__hint {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .1em;
  color: var(--slate);
}

.stage__summary:hover .stage__title,
.stage__summary:focus-visible .stage__title,
.stage[open] .stage__summary .stage__title {
  color: var(--lime);
}

.stage__body {
  padding: 0 0 22px 0;
}

.stage__body p {
  margin: 0 0 12px;
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: rgba(242, 239, 230, .88);
  max-width: 58ch;
}

.stage__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.stage__list li {
  position: relative;
  padding-left: 16px;
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: var(--slate);
}

.stage__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 1px;
  background: var(--clay);
}

.about-quote {
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: clamp(20px, 3vw, 32px);
  background: var(--sand);
  border-left: 4px solid var(--copper);
  color: var(--ink);
}

.about-quote p {
  margin: 0;
  font-size: var(--fs-md);
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -.01em;
  max-width: 40ch;
}

.about-quote cite {
  display: block;
  margin-top: 14px;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .14em;
  color: var(--clay);
}

.flow-layout__media {
  margin: 0;
}

.flow-layout__media .media__frame {
  aspect-ratio: 1 / 1;
}

/* ---------- 改版标签页 ---------- */
.page-about .gen-tabs {
  margin-top: 4px;
}

.page-about .gen-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  border-bottom: 1px solid var(--rule-soft);
}

.page-about .gen-tabs .tabs__tab {
  padding: 12px 14px;
  font-size: var(--fs-xs);
  letter-spacing: .04em;
}

.page-about .gen-tabs .tabs__panel {
  padding: clamp(20px, 3vw, 32px) 0 0;
}

.gen-panel__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.gen-panel__title {
  margin: 0 0 12px;
  font-size: var(--fs-lg);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-about .gen-tabs .tabs__panel p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(242, 239, 230, .88);
  max-width: 62ch;
}

.gen-panel__list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.gen-panel__list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-top: 1px solid var(--rule-soft);
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: rgba(242, 239, 230, .88);
}

.gen-panel__key {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .14em;
  color: var(--copper);
}

/* ---------- 协作与供应 ---------- */
.supply {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: center;
}

.supply__text p {
  margin: 0 0 .9em;
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: rgba(242, 239, 230, .9);
  max-width: 60ch;
}

.supply__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 24px;
  background: var(--rule-soft);
}

.supply__stat {
  background: var(--ink);
  padding: 16px 14px;
  display: grid;
  gap: 6px;
}

.supply__stat-num {
  font-size: var(--fs-lg);
  color: var(--lime);
  line-height: 1;
}

.supply__stat-label {
  font-size: var(--fs-2xs);
  line-height: 1.6;
  color: var(--slate);
}

.supply__media {
  margin: 0;
}

.supply__media .media__frame {
  aspect-ratio: 14 / 9;
}

/* ---------- 报告清单 ---------- */
.notes-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.notes-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 0;
  border-top: 1px solid var(--rule-soft);
}

.notes-item__meta {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: .14em;
  color: var(--copper);
}

.notes-item__title {
  margin: 0;
  font-size: var(--fs-md);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper);
}

.notes-item__desc {
  margin: 8px 0 0;
  font-size: var(--fs-xs);
  line-height: 1.75;
  color: var(--slate);
  max-width: 58ch;
}

/* ---------- 收尾 ---------- */
.about-next {
  border-top: 1px solid var(--rule-soft);
}

.about-next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: start;
}

.about-next__text .title-xl {
  margin: 10px 0 0;
  font-size: var(--fs-lg);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.02em;
}

.about-next__body {
  margin: 14px 0 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(242, 239, 230, .88);
  max-width: 56ch;
}

.about-next__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.about-next__actions .btn {
  justify-content: space-between;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .about-intro__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .gen-panel__list li {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .notes-item {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
    padding: 22px 0;
  }

  .supply__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .about-next__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .about-next__actions {
    align-self: end;
  }
}

@media (min-width: 900px) {
  .about-mast__grid {
    grid-template-columns: minmax(0, 1fr) 38px;
    align-items: end;
  }

  .about-mast__annotation {
    display: block;
    writing-mode: vertical-rl;
    justify-self: end;
    align-self: end;
    line-height: 1;
  }

  .about-chapter__body {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .about-chapter__aside {
    position: sticky;
    top: 96px;
  }

  .flow-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .flow-layout__aside {
    position: sticky;
    top: 96px;
  }

  .supply {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .team-bar__fill,
  .stage__title {
    transition: none;
  }
}
<<<END>>>