.page-about {
  --about-rule: var(--line);
}

/* ── 首屏声明 ── */
.page-about .about-overture {
  padding: clamp(40px, 7vw, 88px) 0 clamp(56px, 9vw, 112px);
}

.page-about .about-overture__title {
  margin: 16px 0 0;
  max-width: 18ch;
}

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

.page-about .about-overture__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--about-rule);
  font-size: 14px;
  color: var(--muted);
}

.page-about .about-overture__fact {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.page-about .about-overture__fact b {
  color: var(--lime);
  font-size: 17px;
  font-weight: 700;
}

/* ── 专注方向 ── */
.page-about .claim-grid {
  display: grid;
  gap: 20px;
}

.page-about .claim-body {
  max-width: 68ch;
}

.page-about .claim-text {
  margin-top: 20px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .claim-text:first-of-type {
  margin-top: 24px;
}

/* ── 运营脉络时间轴 ── */
.page-about .about-line__lede {
  margin-top: 20px;
}

.page-about .tl {
  list-style: none;
  margin: 48px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-about .tl__node {
  position: relative;
  padding: 0 0 32px 32px;
  border-left: 1px solid var(--about-rule);
}

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

.page-about .tl__dot {
  position: absolute;
  left: -4.5px;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--about-rule);
  transition: background-color 160ms ease, transform 160ms ease;
}

.page-about .tl__year {
  display: block;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--lime);
}

.page-about .tl__text {
  margin-top: 8px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
}

.page-about .tl__note {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 34ch;
}

.page-about .tl__node:hover .tl__dot {
  background: var(--lime);
  transform: scale(1.25);
}

/* ── 运营团队 ── */
.page-about .about-team__lede {
  margin-top: 20px;
}

.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 44px;
  border-top: 1px solid var(--about-rule);
  border-left: 1px solid var(--about-rule);
}

.page-about .team-card {
  position: relative;
  padding: 28px 24px 32px;
  border-right: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
  transition: background-color 180ms ease;
}

.page-about .team-card:hover {
  background: var(--ink-2);
}

.page-about .team-card__icon {
  display: block;
  color: var(--muted);
  transition: color 180ms ease;
}

.page-about .team-card:hover .team-card__icon {
  color: var(--lime);
}

.page-about .team-card__num {
  position: absolute;
  top: 28px;
  right: 24px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-about .team-card__name {
  margin: 20px 0 0;
  font-size: 20px;
}

.page-about .team-card__desc {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-team__tail {
  margin-top: 32px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 72ch;
}

/* ── 资料维护 ── */
.page-about .proof-grid {
  display: grid;
  gap: 40px;
}

.page-about .proof-intro {
  margin-top: 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 56ch;
}

.page-about .proof-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .proof-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .proof-list li:last-child {
  border-bottom: 1px solid var(--about-rule);
}

.page-about .proof-list__k {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-about .proof-list__v {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-about .proof-tail {
  margin-top: 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .proof-figure {
  margin: 0;
}

/* ── 内容积累 ── */
.page-about .about-accum__lede {
  margin-top: 20px;
}

.page-about .accum {
  margin-top: 48px;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .accum__row {
  padding: 28px 0 24px;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .accum__num {
  display: block;
  font-size: clamp(52px, 11vw, 108px);
  line-height: .9;
  font-weight: 700;
  letter-spacing: -.035em;
  color: var(--text);
}

.page-about .accum__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  justify-content: flex-start;
  margin: 12px 0 0;
}

.page-about .accum__unit {
  font-size: 15px;
  font-weight: 700;
  color: var(--lime);
}

.page-about .accum__desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 46ch;
}

.page-about .accum__figure {
  margin: 56px 0 0;
}

/* ── 社群共建 ── */
.page-about .comm-grid {
  display: grid;
  gap: 40px;
}

.page-about .comm-figure {
  margin: 0;
}

.page-about .comm-copy p {
  margin-top: 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
  max-width: 60ch;
}

.page-about .comm-stats {
  margin: 36px 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .comm-stat {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .comm-stat__k {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-about .comm-stat__v {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

/* ── 本地运营与联系 ── */
.page-about .about-local__lede {
  margin-top: 20px;
}

.page-about .local-list {
  margin: 44px 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .local-item {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .local-key {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-about .local-val {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  word-break: break-word;
}

.page-about .local-note {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-local__tail {
  margin-top: 36px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 70ch;
}

/* ── 图片容器微调 ── */
.page-about .figure__frame img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ── 响应式 ── */
@media (min-width: 640px) {
  .page-about .accum__meta {
    justify-content: flex-end;
  }

  .page-about .proof-list li {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-about .comm-stat {
    grid-template-columns: minmax(150px, .4fr) minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-about .local-item {
    grid-template-columns: minmax(120px, .28fr) minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-about .claim-grid {
    grid-template-columns: minmax(0, .3fr) minmax(0, 1fr);
    gap: 64px;
  }

  .page-about .tl {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    border-top: 1px solid var(--about-rule);
    padding-top: 0;
    margin-top: 64px;
  }

  .page-about .tl__node {
    border-left: 0;
    border-right: 1px solid var(--about-rule);
    padding: 32px 20px 8px 0;
  }

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

  .page-about .tl__dot {
    left: 0;
    top: -4.5px;
  }

  .page-about .tl__note {
    max-width: none;
  }

  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 56px;
  }

  .page-about .proof-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 72px;
    align-items: start;
  }

  .page-about .comm-grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: 72px;
    align-items: center;
  }

  .page-about .comm-figure {
    position: sticky;
    top: 88px;
  }
}

@media (min-width: 1180px) {
  .page-about .accum__row {
    padding: 36px 0 28px;
  }

  .page-about .accum__meta {
    margin-top: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl__dot,
  .page-about .team-card,
  .page-about .team-card__icon {
    transition: none;
  }
}
<<<END>>>