.page-about {
  --about-line-w: 1px;
  --about-year-col: 96px;
  --about-tl-axis: 112px;
  background: var(--paper-50);
  color: var(--ink-900);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
}

.page-about .shell {
  padding-bottom: 72px;
}

.page-about .crumbs {
  padding-top: 18px;
  font-size: 13px;
}

/* ---------- 档案摘要卡 ---------- */

.page-about .about-hero {
  display: grid;
  gap: 28px;
  padding: 22px 0 40px;
}

.page-about .about-hero__body {
  border-left: 3px solid var(--venetian-700);
  padding-left: 20px;
}

.page-about .about-hero__body .eyebrow {
  color: var(--venetian-700);
  margin: 0 0 12px;
}

.page-about .about-hero h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(2rem, 5.4vw, 3.15rem);
  line-height: 1.22;
  letter-spacing: -.01em;
  margin: 0 0 16px;
}

.page-about .about-hero__lede {
  max-width: 46ch;
  color: var(--ink-500);
  margin: 0 0 22px;
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 0;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-gold);
  padding-top: 14px;
}

.page-about .about-hero__meta li {
  font-size: 12.5px;
  color: var(--ink-500);
  padding: 0 14px;
  border-left: 1px solid var(--line);
}

.page-about .about-hero__meta li:first-child {
  padding-left: 0;
  border-left: 0;
}

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

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line-gold);
}

.page-about .figure__caption {
  font-size: 12px;
  color: var(--ink-500);
  margin-top: 10px;
}

/* ---------- 章节索引条 ---------- */

.page-about .about-index {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 0 16px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-index__label {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold-600);
}

.page-about .about-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--ink-900);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-about .about-index__list a .mono {
  font-size: 11.5px;
  color: var(--venetian-700);
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  border-bottom-color: var(--venetian-700);
}

/* ---------- 章节通用 ---------- */

.page-about .about-section {
  padding: 52px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-section__head {
  max-width: 68ch;
  margin-bottom: 34px;
}

.page-about .about-section__head .eyebrow {
  color: var(--venetian-700);
  margin: 0 0 10px;
}

.page-about .about-section h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.1vw, 2.05rem);
  line-height: 1.34;
  margin: 0 0 14px;
}

.page-about .about-section__intro {
  color: var(--ink-500);
  margin: 0;
}

.page-about a {
  color: var(--venetian-700);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-about a:hover,
.page-about a:focus-visible {
  color: var(--venetian-500);
}

/* ---------- 时间线 ---------- */

.page-about .timeline {
  display: grid;
  gap: 0;
}

.page-about .timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding-bottom: 30px;
}

.page-about .timeline__year {
  font-size: 14px;
  color: var(--venetian-700);
  letter-spacing: .06em;
  margin: 0;
}

.page-about .timeline__body h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.16rem;
  line-height: 1.4;
  margin: 0 0 8px;
}

.page-about .timeline__body p {
  color: var(--ink-500);
  margin: 0;
  max-width: 66ch;
}

.page-about .timeline__figure {
  margin: 4px 0 32px;
}

.page-about .timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line-gold);
}

/* ---------- 团队 ---------- */

.page-about .about-team__figure {
  margin: 0 0 34px;
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line-gold);
}

.page-about .team-cards {
  display: grid;
  gap: 22px;
}

.page-about .team-card {
  position: relative;
  background: var(--paper-100);
  border: 1px solid var(--line);
  border-top: 2px solid var(--venetian-700);
  padding: 22px 20px 24px;
}

.page-about .team-card__no {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold-300);
  background: var(--ink-900);
  padding: 3px 8px;
  margin: 0 0 14px;
}

.page-about .team-card h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.22rem;
  margin: 0 0 10px;
}

.page-about .team-card > p {
  color: var(--ink-500);
  font-size: 15.5px;
  margin: 0 0 16px;
}

.page-about .team-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .team-card__list li {
  position: relative;
  font-size: 15px;
  color: var(--ink-500);
  padding: 10px 0 10px 16px;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .team-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 7px;
  height: 1px;
  background: var(--gold-600);
}

.page-about .team-stats {
  display: grid;
  gap: 0;
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-gold);
}

.page-about .team-stats__item {
  display: grid;
  gap: 2px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .team-stats__num {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 2.4rem;
  line-height: 1.05;
  color: var(--venetian-700);
}

.page-about .team-stats__label {
  font-size: 15px;
  font-weight: 500;
}

.page-about .team-stats__note {
  font-size: 13.5px;
  color: var(--ink-500);
}

/* ---------- 资料与合作 ---------- */

.page-about .about-split {
  display: grid;
  gap: 30px;
}

.page-about .about-split__text p {
  color: var(--ink-500);
  margin: 0 0 16px;
  max-width: 66ch;
}

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

.page-about .about-split__facts {
  background: var(--paper-100);
  border: 1px solid var(--line);
  padding: 20px;
}

.page-about .about-split__facts h3 {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--venetian-700);
  margin: 0 0 12px;
  font-weight: 500;
}

.page-about .fact-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-about .fact-list__row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .fact-list dt {
  font-size: 14px;
  color: var(--ink-500);
}

.page-about .fact-list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--ink-900);
  white-space: nowrap;
}

/* ---------- 索引复核 ---------- */

.page-about .review-grid {
  display: grid;
  gap: 30px;
}

.page-about .review-grid__text p {
  color: var(--ink-500);
  margin: 0 0 16px;
  max-width: 66ch;
}

.page-about .review-grid__text p:last-child {
  margin-bottom: 0;
}

.page-about .review-grid__panel {
  background: var(--ink-900);
  color: var(--paper-50);
  padding: 24px 22px;
}

.page-about .review-grid__big {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(3rem, 8vw, 4.2rem);
  line-height: 1;
  margin: 0 0 12px;
  color: var(--gold-300);
}

.page-about .review-grid__big small {
  font-size: .42em;
  margin-left: 4px;
  color: var(--paper-text);
}

.page-about .review-grid__caption {
  font-size: 14.5px;
  color: var(--paper-text);
  margin: 0 0 18px;
}

.page-about .review-grid__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(245, 240, 230, .22);
}

.page-about .review-grid__list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 14.5px;
  color: var(--paper-text);
  padding: 9px 0;
  border-bottom: 1px solid rgba(245, 240, 230, .12);
}

.page-about .review-grid__list .mono {
  color: var(--gold-300);
  font-size: 12.5px;
  min-width: 64px;
}

/* ---------- 常来的用户 ---------- */

.page-about .audience {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-gold);
}

.page-about .audience__row {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .audience__who {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.1rem;
  margin: 0;
  border-left: 3px solid var(--canal-600);
  padding-left: 12px;
}

.page-about .audience__need {
  font-size: 15px;
  color: var(--ink-500);
  margin: 0;
}

.page-about .audience__how {
  font-size: 15.5px;
  margin: 0;
}

/* ---------- 下一步 ---------- */

.page-about .about-cta {
  margin-top: 52px;
  background: var(--ink-900);
  color: var(--paper-50);
  padding: 36px 24px 38px;
  border-top: 3px solid var(--venetian-700);
}

.page-about .about-cta__eyebrow {
  color: var(--gold-300);
  margin: 0 0 12px;
}

.page-about .about-cta h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  line-height: 1.35;
  margin: 0 0 12px;
}

.page-about .about-cta__text {
  color: var(--paper-text);
  max-width: 60ch;
  margin: 0 0 24px;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-cta .btn--ghost {
  color: var(--paper-50);
  border-color: rgba(245, 240, 230, .38);
}

.page-about .about-cta .btn--ghost:hover,
.page-about .about-cta .btn--ghost:focus-visible {
  color: var(--gold-300);
  border-color: var(--gold-300);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 44px;
    align-items: start;
    padding: 30px 0 52px;
  }

  .page-about .about-hero__body {
    padding-left: 26px;
  }

  .page-about .about-index {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
  }

  .page-about .review-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

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

  .page-about .team-stats__item {
    padding: 20px 20px 20px 0;
    border-bottom: 0;
    border-left: 1px solid var(--line-soft);
    padding-left: 20px;
  }

  .page-about .team-stats__item:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-about .audience__row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr) minmax(0, 1.5fr);
    gap: 24px;
    align-items: start;
    padding: 24px 0;
  }

  .page-about .audience__who {
    padding-left: 14px;
  }

  .page-about .about-cta {
    padding: 44px 40px 46px;
  }
}

@media (min-width: 900px) {
  .page-about .about-section {
    padding: 64px 0;
  }

  .page-about .timeline__item {
    grid-template-columns: var(--about-year-col) minmax(0, 1fr);
    gap: 32px;
    padding-bottom: 40px;
  }

  .page-about .timeline__item::before {
    content: "";
    position: absolute;
    left: var(--about-tl-axis);
    top: 8px;
    bottom: -8px;
    width: var(--about-line-w);
    background: var(--line-gold);
  }

  .page-about .timeline__item::after {
    content: "";
    position: absolute;
    left: calc(var(--about-tl-axis) - 4px);
    top: 6px;
    width: 9px;
    height: 9px;
    background: var(--paper-50);
    border: 1px solid var(--gold-600);
  }

  .page-about .timeline__item:last-child::before {
    bottom: 20px;
  }

  .page-about .timeline__year {
    text-align: right;
    padding-top: 2px;
  }

  .page-about .timeline__figure {
    margin-left: var(--about-tl-axis);
    margin-bottom: 40px;
  }

  .page-about .team-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
    align-items: start;
  }

  .page-about .team-card:nth-child(2) {
    margin-top: 28px;
  }

  .page-about .team-card:nth-child(3) {
    margin-top: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index__list a {
    transition: none;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>