.page-about {
  background: var(--cream-50);
  color: var(--ink-900);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-about .content-wrap {
  max-width: var(--content-max);
  margin: 0 auto;
  padding-left: var(--page-gutter);
  padding-right: var(--page-gutter);
  box-sizing: border-box;
}

.page-about .about-crumb {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 18px var(--page-gutter) 0;
  box-sizing: border-box;
}

/* 首屏 */
.page-about .about-hero {
  padding: 34px 0 46px;
  border-bottom: 1px solid var(--gold-300);
}

.page-about .about-hero__tag {
  color: var(--royal-500);
  margin: 0;
}

.page-about .about-hero__title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(34px, 10vw, 82px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--royal-900);
  margin: 14px 0 0;
}

.page-about .about-hero__lead {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-900);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 32px 0 0;
  background: var(--royal-900);
  border: 2px solid var(--royal-900);
}

.page-about .about-stat {
  background: var(--cream-50);
  padding: 14px 14px 16px;
}

.page-about .about-stat__label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--royal-500);
  margin: 0 0 6px;
}

.page-about .about-stat__num {
  margin: 0;
  font-family: var(--font-numeric);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--royal-900);
  font-variant-numeric: tabular-nums;
}

/* 通用色带 */
.page-about .about-band {
  padding: 50px 0 54px;
}

.page-about .about-band--cream {
  background: var(--cream-50);
}

.page-about .about-band--cream200 {
  background: var(--cream-200);
}

.page-about .about-band--dark {
  background: var(--royal-900);
  color: var(--cream-50);
}

.page-about .about-band--royal {
  background: var(--royal-700);
  color: var(--cream-50);
}

.page-about .about-band--gold {
  background: var(--gold-100);
}

.page-about .about-kicker--gold {
  color: var(--gold-500);
}

.page-about .about-heading--light {
  color: var(--cream-50);
}

.page-about .section-heading {
  color: var(--royal-900);
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(26px, 6.4vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.page-about .about-heading--light {
  color: var(--cream-50);
}

/* 图框 */
.page-about .about-figure {
  margin: 0;
  border: 3px solid var(--royal-900);
  box-shadow: var(--shadow-hard);
  background: var(--cream-200);
}

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

.page-about .about-figure__caption {
  border-top: 1px solid var(--royal-900);
  padding: 9px 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--royal-700);
  background: var(--cream-50);
}

.page-about .about-figure--dark {
  border-color: var(--gold-500);
  box-shadow: 8px 8px 0 rgba(201, 162, 39, 0.35);
  background: var(--royal-900);
}

.page-about .about-figure--dark .about-figure__caption {
  border-top-color: var(--gold-500);
  background: var(--royal-900);
  color: var(--gold-100);
}

/* 起点 */
.page-about .about-origin__grid {
  display: grid;
  gap: 28px;
  margin-top: 26px;
}

.page-about .about-origin__text p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
}

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

.page-about .about-origin__text a {
  color: var(--royal-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-figure--portrait img {
  max-height: 520px;
}

/* 时间线 */
.page-about .about-history__lead {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(251, 247, 238, 0.82);
}

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

.page-about .about-history__grid {
  display: grid;
  gap: 28px;
  margin-top: 34px;
}

.page-about .about-rail {
  border: 2px solid rgba(201, 162, 39, 0.55);
  padding: 12px 14px 14px;
}

.page-about .about-rail__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-300);
}

.page-about .about-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.page-about .about-rail__link {
  display: inline-block;
  font-family: var(--font-numeric);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--cream-50);
  text-decoration: none;
  padding: 6px 10px;
  border: 1px solid rgba(246, 231, 180, 0.35);
  transition: background 160ms var(--ease-out), color 160ms var(--ease-out), border-color 160ms var(--ease-out);
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  background: var(--gold-500);
  border-color: var(--gold-500);
  color: var(--royal-900);
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 30px;
}

.page-about .about-node {
  display: grid;
  gap: 10px;
  scroll-margin-top: 90px;
}

.page-about .about-node__year {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(40px, 11vw, 62px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold-500);
  font-variant-numeric: tabular-nums;
}

.page-about .about-node__card {
  border-left: 3px solid var(--gold-500);
  background: rgba(255, 255, 255, 0.05);
  padding: 16px 18px 18px;
  transition: background 160ms var(--ease-out);
}

.page-about .about-node__card:hover {
  background: rgba(255, 255, 255, 0.1);
}

.page-about .about-node__index {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-300);
}

.page-about .about-node__title {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--cream-50);
}

.page-about .about-node__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(251, 247, 238, 0.82);
  max-width: 32em;
}

/* 团队编制 */
.page-about .about-team__lead {
  margin: 16px 0 0;
  max-width: 32em;
  font-size: 16px;
  line-height: 1.8;
}

.page-about .about-team__grid {
  display: grid;
  gap: 22px;
  margin-top: 30px;
}

.page-about .about-board {
  border: 2px solid var(--royal-900);
  background: var(--cream-50);
  padding: 20px 18px 24px;
  box-shadow: 6px 6px 0 var(--royal-900);
  transition: transform 160ms var(--ease-out), box-shadow 160ms var(--ease-out);
}

.page-about .about-board:hover,
.page-about .about-board:focus-within {
  transform: translate(3px, 3px);
  box-shadow: 3px 3px 0 var(--royal-900);
}

.page-about .about-board__num {
  margin: 0;
  font-family: var(--font-numeric);
  font-variant-numeric: tabular-nums;
  font-size: 46px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold-500);
}

.page-about .about-board__title {
  margin: 12px 0 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--royal-900);
}

.page-about .about-board__body {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
}

.page-about .about-board__list {
  list-style: none;
  margin: 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--gold-300);
}

.page-about .about-board__list li {
  position: relative;
  padding-left: 14px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--royal-700);
}

.page-about .about-board__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 6px;
  height: 6px;
  background: var(--jade-500);
}

.page-about .about-board--dark {
  background: var(--royal-900);
  color: var(--cream-50);
  box-shadow: 6px 6px 0 var(--gold-500);
}

.page-about .about-board--dark:hover,
.page-about .about-board--dark:focus-within {
  box-shadow: 3px 3px 0 var(--gold-500);
}

.page-about .about-board--dark .about-board__title {
  color: var(--cream-50);
}

.page-about .about-board--dark .about-board__body {
  color: rgba(251, 247, 238, 0.85);
}

.page-about .about-board--dark .about-board__list {
  border-top-color: rgba(201, 162, 39, 0.6);
}

.page-about .about-board--dark .about-board__list li {
  color: var(--gold-100);
}

.page-about .about-board--dark .about-board__list li::before {
  background: var(--gold-500);
}

/* 运营方法 */
.page-about .about-methods__lead {
  margin: 16px 0 0;
  max-width: 32em;
  font-size: 16px;
  line-height: 1.8;
}

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

.page-about .about-panel {
  padding: 22px 0 0;
  border-top: 1px solid var(--gold-300);
  margin-top: 20px;
}

.page-about .about-panel__text {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  max-width: 34em;
}

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

.page-about .about-panel__list li {
  border-left: 3px solid var(--gold-500);
  padding: 4px 0 4px 14px;
  font-size: 15px;
  line-height: 1.85;
  max-width: 40em;
}

.page-about .about-panel__list strong {
  color: var(--royal-900);
  font-weight: 700;
}

.page-about .about-panel__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .about-panel__grid li {
  background: var(--jade-100);
  border: 1px solid var(--jade-500);
  padding: 10px 12px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--jade-500);
  font-weight: 700;
}

/* 协作与认可 */
.page-about .about-partners__grid {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.page-about .about-partners__text p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(251, 247, 238, 0.88);
  max-width: 34em;
}

.page-about .about-partners__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(201, 162, 39, 0.6);
  display: grid;
  gap: 12px;
}

.page-about .about-partners__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gold-100);
}

.page-about .about-partners__mark {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 0.55em;
  background: var(--jade-500);
  border: 1px solid var(--gold-300);
}

/* 做事方式 */
.page-about .about-principles__grid {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 26px;
}

.page-about .about-principle {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  column-gap: 16px;
  padding-top: 18px;
  border-top: 1px solid var(--gold-300);
}

.page-about .about-principle__num {
  margin: 0;
  font-family: var(--font-numeric);
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold-500);
}

.page-about .about-principle__title {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  color: var(--royal-900);
  line-height: 1.4;
}

.page-about .about-principle__body {
  margin: 0;
  grid-column: 2;
  font-size: 15px;
  line-height: 1.85;
  max-width: 34em;
}

/* 收尾 */
.page-about .about-cta__inner {
  display: grid;
  gap: 18px;
}

.page-about .about-cta__title {
  margin: 0;
  color: var(--royal-900);
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(26px, 6.4vw, 42px);
  line-height: 1.12;
}

.page-about .about-cta__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  max-width: 36em;
  color: var(--ink-900);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-about .about-cta__actions .btn {
  text-decoration: none;
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-principles__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-band {
    padding: 72px 0 80px;
  }

  .page-about .about-hero {
    padding: 48px 0 64px;
  }

  .page-about .about-hero__lead {
    font-size: 17px;
    margin-top: 26px;
  }

  .page-about .about-origin__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 56px;
    align-items: start;
    margin-top: 34px;
  }

  .page-about .about-figure--portrait {
    margin-top: 8px;
  }

  .page-about .about-history__grid {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 56px;
    margin-top: 44px;
  }

  .page-about .about-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-about .about-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 12px;
  }

  .page-about .about-rail__link {
    width: 100%;
    box-sizing: border-box;
    font-size: 17px;
  }

  .page-about .about-node {
    grid-template-columns: 150px minmax(0, 1fr);
    column-gap: 24px;
    align-items: start;
    gap: 0;
  }

  .page-about .about-node__year {
    padding-top: 4px;
  }

  .page-about .about-team__grid {
    grid-template-columns: 1.1fr 0.85fr 1fr;
    gap: 24px;
    align-items: start;
  }

  .page-about .about-board--dark {
    margin-top: 26px;
  }

  .page-about .about-partners__grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 52px;
    align-items: start;
    margin-top: 36px;
  }

  .page-about .about-principles__grid {
    gap: 34px 40px;
    margin-top: 36px;
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr);
  }
}
<<<END>>>