.page-about {
  background: var(--ink);
  color: var(--body-ink);
}

.page-about .display,
.page-about .display--sm {
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px 40px;
  padding: 32px var(--pad) 52px;
  border-bottom: 1px solid var(--line);
}

.page-about .ab-hero__text {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.page-about .ab-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8.4vw, 74px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0;
}

.page-about .ab-hero__lede {
  font-family: var(--font-body);
  font-size: 1.02rem;
  line-height: 1.9;
  color: var(--body-ink);
  max-width: 34em;
  margin: 0;
}

.page-about .ab-hero__prose {
  max-width: 32em;
  font-size: 0.95rem;
  color: var(--mute);
  margin: 0;
}

.page-about .ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.page-about .ab-hero__media {
  min-width: 0;
}

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

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

.page-about .img__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--mute);
}

/* ---------- 数据条 ---------- */
.page-about .ab-facts {
  list-style: none;
  margin: 4px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 18px;
}

.page-about .ab-facts__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
  min-width: 0;
}

.page-about .ab-facts__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mute);
}

.page-about .ab-facts__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  font-size: clamp(26px, 6.4vw, 40px);
  line-height: 1;
  color: var(--mist);
}

.page-about .ab-facts__v--signal {
  color: var(--signal);
}

.page-about .ab-facts__n {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--mute);
}

/* ---------- 路径 ---------- */
.page-about .pathbar {
  margin-top: 18px;
}

/* ---------- 章节头 ---------- */
.page-about .ab-sec-hd {
  max-width: 44rem;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 42px;
}

.page-about .ab-sec-hd .prose {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.9;
  color: var(--body-ink);
  max-width: 34em;
}

/* ---------- 三拨人 ---------- */
.page-about .crew {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-about .crew__col {
  padding: 26px 0 28px;
  border-top: 1px solid var(--line);
  min-width: 0;
  transition: opacity 200ms ease-out;
}

.page-about .crew__col:first-child {
  border-top: 1px solid var(--line);
}

.page-about .crew__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--signal);
  margin: 0;
}

.page-about .crew__h {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 4.6vw, 25px);
  line-height: 1.2;
  color: var(--mist);
  margin: 10px 0 12px;
}

.page-about .crew__p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--body-ink);
  margin: 0;
}

.page-about .crew__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .crew__list li {
  position: relative;
  padding-left: 16px;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-about .crew__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 8px;
  height: 1px;
  background: var(--signal);
}

/* ---------- 校对流程 ---------- */
.page-about .ab-flow {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .ab-flow__wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
}

.page-about .ab-flow__side {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.page-about .ab-flow__side .prose {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.9;
  max-width: 32em;
}

.page-about .ab-flow__figure {
  margin: 8px 0 0;
}

.page-about .ab-flow__steps {
  min-width: 0;
}

.page-about .ab-flow__steps .acc__item {
  border-top: 1px solid var(--line);
}

.page-about .ab-flow__steps .acc__item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-about .ab-flow__steps .acc__idx {
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about .ab-flow__steps .acc__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--mist);
}

.page-about .ab-flow__steps .acc__inner p {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--body-ink);
  margin: 0;
  max-width: 36em;
}

/* ---------- 时间轴 ---------- */
.page-about .tl {
  list-style: none;
  margin: 8px 0 0;
  padding: 0 0 0 26px;
  position: relative;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: var(--line);
}

.page-about .tl__node {
  position: relative;
  padding: 0 0 30px;
}

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

.page-about .tl__node::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
}

.page-about .tl__meta {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.page-about .tl__ver {
  color: var(--signal);
  font-variant-numeric: tabular-nums;
}

.page-about .tl__year {
  color: var(--mute);
}

.page-about .tl__body {
  min-width: 0;
}

.page-about .tl__body .acc__item {
  border-top: 1px solid var(--line-soft);
}

.page-about .tl__body .acc__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mute);
}

.page-about .tl__body .acc__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.96rem;
  color: var(--mist);
}

.page-about .tl__body .acc__inner p {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--body-ink);
  margin: 0;
  max-width: 36em;
}

/* ---------- 看台沙龙 ---------- */
.page-about .ab-salon__wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-about .ab-salon__figure {
  order: 2;
}

.page-about .ab-salon__text {
  order: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.page-about .ab-salon__text .prose {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.9;
  max-width: 32em;
}

.page-about .ab-salon__list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .ab-salon__list li {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--body-ink);
}

.page-about .ab-salon__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mute);
  padding-top: 2px;
}

.page-about .ab-salon__cta {
  margin: 8px 0 0;
}

/* ---------- 返回 ---------- */
.page-about .ab-back__line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-about .ab-back__line a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color 160ms ease-out, border-color 160ms ease-out;
}

.page-about .ab-back__line a:hover,
.page-about .ab-back__line a:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .ab-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .ab-salon__list li {
    grid-template-columns: 88px minmax(0, 1fr);
  }
}

@media (min-width: 860px) {
  .page-about .ab-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
    padding: 48px var(--pad) 64px;
  }

  .page-about .ab-facts {
    grid-column: 1 / -1;
    margin-top: 14px;
  }

  .page-about .crew {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.2fr);
  }

  .page-about .crew__col {
    padding: 6px 26px 10px;
    border-top: none;
    border-left: 1px solid var(--line);
  }

  .page-about .crew__col:first-child {
    border-top: none;
    border-left: none;
    padding-left: 0;
    padding-right: 30px;
  }

  .page-about .crew__col:last-child {
    padding-right: 0;
  }

  .page-about .crew:hover .crew__col {
    opacity: 0.4;
  }

  .page-about .crew:hover .crew__col:hover,
  .page-about .crew__col:focus-within {
    opacity: 1;
  }

  .page-about .ab-flow__wrap {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 54px;
    align-items: start;
  }

  .page-about .ab-flow__side {
    position: sticky;
    top: calc(var(--cmd-h) + 24px);
  }

  .page-about .ab-salon__wrap {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
    align-items: center;
  }

  .page-about .ab-salon__figure {
    order: 1;
  }

  .page-about .ab-salon__text {
    order: 2;
  }

  .page-about .tl {
    padding-left: 34px;
  }

  .page-about .tl__node {
    padding-bottom: 36px;
  }
}

@media (min-width: 1180px) {
  .page-about .ab-hero__title {
    font-size: clamp(56px, 5.6vw, 84px);
  }

  .page-about .ab-hero__lede {
    font-size: 1.08rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .crew__col,
  .page-about .ab-back__line a {
    transition: none;
  }
}
<<<END>>>