.page-about {
  --about-rule: rgba(185, 146, 79, 0.28);
  --about-rule-paper: rgba(28, 35, 43, 0.16);
  --about-pad: 56px;
  background: var(--ink-800);
  color: var(--mist);
}

.page-about .container {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-inline: var(--pad-x);
}

/* 面包屑 */
.page-about .about-crumb {
  padding-top: 22px;
  padding-bottom: 10px;
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--celadon);
}

.page-about .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 10px;
  color: var(--gold);
}

.page-about .breadcrumb__link {
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .breadcrumb__link:hover,
.page-about .breadcrumb__link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--cinnabar-bright);
}

.page-about .breadcrumb__current {
  color: var(--paper);
}

/* 首屏 */
.page-about .about-lead {
  padding: 18px 0 64px;
}

.page-about .about-lead__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.page-about .about-lead__kicker {
  margin: 0 0 18px;
  padding-top: 12px;
  border-top: 1px solid var(--about-rule);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-about h1 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--paper-light);
}

.page-about .about-lead__deck {
  max-width: 40ch;
  margin: 0 0 26px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-lead__facts {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--about-rule);
  padding-top: 20px;
}

.page-about .about-lead__facts li {
  position: relative;
  padding-left: 30px;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--paper);
}

.page-about .about-lead__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 16px;
  height: 1px;
  background: var(--gold);
}

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

.page-about .figure__frame {
  overflow: hidden;
  border: 1px solid var(--about-rule);
  background: var(--ink-700);
}

.page-about .about-lead__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.02);
}

.page-about .figure__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--celadon);
}

/* 历程 */
.page-about .about-timeline {
  position: relative;
  overflow: hidden;
  padding: var(--about-pad) 0;
  background: var(--paper);
  color: var(--charcoal);
}

.page-about .about-timeline__wash {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.page-about .about-timeline__wash img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
  filter: grayscale(0.6) contrast(0.9);
}

.page-about .about-timeline__wash::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(241, 232, 216, 0.94), rgba(250, 244, 232, 0.86));
}

.page-about .about-timeline__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-about .about-years {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-about .about-years__note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
  writing-mode: horizontal-tb;
}

.page-about .about-years__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-years__item {
  flex: 0 0 auto;
}

.page-about .about-years__link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 14px;
  border: 1px solid var(--about-rule-paper);
  text-decoration: none;
  color: var(--charcoal);
  background: transparent;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-years__link:hover,
.page-about .about-years__link:focus-visible {
  border-color: var(--cinnabar);
  background: var(--paper-light);
  transform: translateY(-2px);
}

.page-about .about-years__year {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-about .about-years__what {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(28, 35, 43, 0.62);
}

.page-about .about-timeline__head {
  margin-bottom: 28px;
}

.page-about .section-head__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 4.4vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--charcoal);
}

.page-about .section-head__meta {
  margin: 0;
  max-width: 44ch;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(28, 35, 43, 0.66);
}

.page-about .about-era {
  padding: 22px 0 22px 18px;
  border-left: 2px solid var(--about-rule-paper);
  border-top: 1px solid var(--about-rule-paper);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
  scroll-margin-top: 90px;
}

.page-about .about-era:first-of-type {
  border-top: 1px solid var(--about-rule-paper);
}

.page-about .about-era:hover,
.page-about .about-era:target {
  border-left-color: var(--cinnabar);
  background: rgba(250, 244, 232, 0.72);
}

.page-about .about-era__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.page-about .about-era__year {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cinnabar);
}

.page-about .about-era__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.45;
  color: var(--charcoal);
}

.page-about .about-era p {
  margin: 0;
  max-width: 46ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(28, 35, 43, 0.82);
}

/* 团队 */
.page-about .about-team {
  padding: var(--about-pad) 0;
  background: var(--ink-900);
}

.page-about .about-team .section-head__title {
  color: var(--paper-light);
}

.page-about .about-team .section-head__meta {
  color: var(--celadon);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-about .about-team__head {
  margin-bottom: 34px;
  border-top: 1px solid var(--about-rule);
  padding-top: 20px;
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-bottom: 40px;
}

.page-about .about-crew {
  padding-top: 16px;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-crew__no {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .about-crew__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.16rem;
  color: var(--paper-light);
}

.page-about .about-crew__num {
  margin: 0 0 12px;
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  color: var(--cinnabar-bright);
  font-variant-numeric: tabular-nums;
}

.page-about .about-crew__num span {
  margin-left: 4px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--celadon);
}

.page-about .about-crew p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.6) contrast(1.02);
}

/* 更新节奏 */
.page-about .about-rhythm {
  padding: var(--about-pad) 0;
  background: var(--paper-light);
  color: var(--charcoal);
}

.page-about .about-rhythm__head {
  margin-bottom: 28px;
  border-top: 1px solid var(--about-rule-paper);
  padding-top: 20px;
}

.page-about .table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--about-rule-paper);
  background: #fffaf0;
}

.page-about .about-rhythm__table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 0.88rem;
  line-height: 1.7;
}

.page-about .about-rhythm__caption {
  caption-side: top;
  padding: 12px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gold);
  border-bottom: 1px solid var(--about-rule-paper);
}

.page-about .about-rhythm__table th,
.page-about .about-rhythm__table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--about-rule-paper);
}

.page-about .about-rhythm__table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: rgba(28, 35, 43, 0.62);
  background: rgba(152, 167, 161, 0.14);
}

.page-about .about-rhythm__table tbody th {
  font-weight: 600;
  color: var(--charcoal);
  white-space: nowrap;
}

.page-about .about-rhythm__table tbody td {
  color: rgba(28, 35, 43, 0.78);
}

.page-about .about-rhythm__table tbody tr:last-child th,
.page-about .about-rhythm__table tbody tr:last-child td {
  border-bottom: 0;
}

/* 覆盖 */
.page-about .about-coverage {
  padding: var(--about-pad) 0;
  background: var(--ink-700);
}

.page-about .about-coverage .section-head__title {
  color: var(--paper-light);
}

.page-about .about-coverage__head {
  margin-bottom: 28px;
}

.page-about .about-coverage__band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: 28px 0;
  border-top: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-about .about-stat__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 9vw, 3.6rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat__unit {
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-about .about-coverage__cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.page-about .about-coverage__cols p {
  margin: 0;
  max-width: 44ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-coverage__link {
  margin: 26px 0 0;
}

/* 区域协作 */
.page-about .about-partners {
  padding: var(--about-pad) 0 72px;
  background: var(--ink-800);
}

.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

.page-about .about-partners__head {
  margin-bottom: 22px;
  border-top: 1px solid var(--about-rule);
  padding-top: 20px;
}

.page-about .about-partners .section-head__title {
  color: var(--paper-light);
}

.page-about .about-partners__main p {
  margin: 0 0 18px;
  max-width: 46ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-partners__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-partners__aside {
  border-top: 1px solid var(--about-rule);
  padding-top: 20px;
}

.page-about .about-partners__aside-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--paper-light);
}

.page-about .about-partners__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-partners__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-partners__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 8px;
  height: 1px;
  background: var(--cinnabar-bright);
}

/* 焦点态 */
.page-about a:focus-visible,
.page-about button:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-about {
    --about-pad: 72px;
  }

  .page-about .about-team__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }

  .page-about .about-coverage__band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }

  .page-about .about-coverage__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
  }
}

@media (min-width: 960px) {
  .page-about {
    --about-pad: 88px;
  }

  .page-about .about-lead {
    padding: 26px 0 84px;
  }

  .page-about .about-lead__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
  }

  .page-about .about-timeline__grid {
    grid-template-columns: 176px minmax(0, 1fr);
    gap: 56px;
  }

  .page-about .about-years {
    position: sticky;
    top: 32px;
    align-self: start;
  }

  .page-about .about-years__note {
    writing-mode: vertical-rl;
    margin-bottom: 8px;
  }

  .page-about .about-years__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
  }

  .page-about .about-years__link {
    border-color: transparent;
    border-left: 2px solid var(--about-rule-paper);
    padding: 8px 12px;
  }

  .page-about .about-years__link:hover,
  .page-about .about-years__link:focus-visible {
    transform: translateX(2px);
  }

  .page-about .about-team__figure img {
    aspect-ratio: 3 / 1.6;
  }

  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
  }
}
<<<END>>>