.page-about {
  --about-col: 720px;
  --about-axis-w: 172px;
}

.page-about .breadcrumbs {
  padding-block: 20px 0;
}

/* 首屏 */
.page-about .about-hero {
  padding-top: clamp(16px, 3vw, 32px);
}

.page-about .about-hero-grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: end;
}

.page-about .about-hero-body .eyebrow {
  margin-bottom: 14px;
}

.page-about .about-hero-body .display {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.15;
}

.page-about .about-hero-body .lead {
  max-width: 34em;
  margin: 0;
  color: var(--ivory);
  opacity: 0.86;
}

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

.page-about .about-hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--line-soft);
}

.page-about .fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background: var(--ink-2);
}

.page-about .fact-num {
  font-family: var(--font-narrow);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--gold-hi);
  font-variant-numeric: tabular-nums;
}

.page-about .fact-label {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--celadon);
}

.page-about .about-hero-figure {
  margin: clamp(28px, 4.5vw, 48px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

/* 档案主体 */
.page-about .about-archive-grid {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

.page-about .about-axis {
  display: none;
}

.page-about .about-axis .index-axis-note {
  margin: 0 0 14px;
  writing-mode: horizontal-tb;
  color: var(--celadon);
}

.page-about .index-axis-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 14px;
  border-left: 1px solid var(--line);
  display: grid;
  gap: 14px;
}

.page-about .index-axis-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--celadon);
  text-decoration: none;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .axis-num {
  font-family: var(--font-narrow);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--gold-deep);
}

.page-about .index-axis-link:hover,
.page-about .index-axis-link:focus-visible,
.page-about .index-axis-link[aria-current="location"] {
  color: var(--gold-hi);
  transform: translateX(4px);
}

.page-about .about-column {
  display: grid;
  gap: clamp(52px, 8vw, 100px);
  max-width: var(--about-col);
}

.page-about .about-block {
  scroll-margin-top: 110px;
}

.page-about .block-coord {
  margin: 0 0 12px;
  color: var(--gold-deep);
  letter-spacing: 0.18em;
}

.page-about .about-block .h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
}

.page-about .about-block p {
  max-width: 34em;
  margin: 0 0 1.2em;
  color: var(--ivory);
  opacity: 0.85;
}

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

.page-about .about-block a {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-deep);
}

.page-about .about-block a:hover,
.page-about .about-block a:focus-visible {
  border-bottom-color: var(--gold-hi);
}

.page-about .about-filter {
  margin: 24px 0 18px;
}

.page-about .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .is-hidden {
  display: none !important;
}

/* 对照表 */
.page-about .about-cmp {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--ink-2);
}

.page-about .cmp-row {
  display: flex;
  flex-wrap: wrap;
  border-top: 1px solid var(--line-soft);
}

.page-about .cmp-row:first-child {
  border-top: 0;
}

.page-about .about-cmp > .cmp-row:nth-child(even) {
  background: rgba(138, 154, 150, 0.05);
}

.page-about .cmp-head {
  background: rgba(201, 162, 39, 0.08);
}

.page-about .cmp-key {
  flex: 1 1 100%;
  padding: 16px 18px 4px;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--celadon);
}

.page-about .cmp-val {
  flex: 1 1 100%;
  padding: 0 18px 16px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ivory);
}

.page-about .cmp-val::before {
  content: attr(data-mode);
  display: block;
  margin-bottom: 4px;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
}

.page-about .cmp-head .cmp-val {
  padding: 10px 18px 14px;
}

.page-about .cmp-head .cmp-val::before {
  display: none;
}

.page-about .cmp-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--gold-hi);
  background: rgba(201, 162, 39, 0.07);
}

.page-about .cmp-badge--express {
  border-color: rgba(138, 154, 150, 0.45);
  color: var(--celadon);
  background: rgba(138, 154, 150, 0.08);
}

.page-about .about-cmp-side {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-seal {
  max-width: 220px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.page-about .about-cmp-side .annotation {
  max-width: 30em;
  color: var(--celadon);
}

/* 年表 */
.page-about .tl-list {
  position: relative;
  display: grid;
  gap: 26px;
  margin: 26px 0 0;
  padding: 0 0 0 30px;
  list-style: none;
}

.page-about .tl-list::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold-deep), var(--gold), var(--gold-deep));
}

.page-about .tl-item {
  position: relative;
}

.page-about .tl-dot {
  position: absolute;
  left: -30px;
  top: 5px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  background: var(--ink);
}

.page-about .tl-item.is-key .tl-dot {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.14);
}

.page-about .tl-year {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-narrow);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--gold-hi);
  font-variant-numeric: tabular-nums;
}

.page-about .tl-code {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--celadon);
}

.page-about .tl-text {
  margin: 8px 0 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ivory);
  opacity: 0.84;
}

.page-about .about-tail {
  margin-top: 26px !important;
  font-size: 0.95rem;
}

/* 团队 */
.page-about .team-pills {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-about .team-pill {
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(42, 44, 51, 0.62), rgba(20, 21, 26, 0.9));
}

.page-about .pill-count {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--gold-hi);
}

.page-about .team-pill .h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
}

.page-about .team-pill p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--ivory);
  opacity: 0.82;
}

.page-about .about-block .h3 {
  margin: 40px 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
}

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

.page-about .about-checks li {
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ivory);
  opacity: 0.85;
}

.page-about .about-checks strong {
  color: var(--gold-hi);
  font-weight: 600;
}

.page-about .about-team-figure {
  margin: 30px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

/* 伙伴 */
.page-about .partner-list {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.page-about .partner-item {
  padding: 20px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: rgba(20, 21, 26, 0.72);
}

.page-about .partner-item .tag {
  margin-bottom: 10px;
}

.page-about .partner-item p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--ivory);
  opacity: 0.84;
}

/* 服务标准 */
.page-about .service-list {
  margin-top: 24px;
  border-top: 1px solid var(--line);
}

.page-about .service-row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .service-key {
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--celadon);
}

.page-about .service-val {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ivory);
  opacity: 0.88;
}

/* 结尾 */
.page-about .about-cta {
  max-width: var(--about-col);
  padding: clamp(26px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(201, 162, 39, 0.12), rgba(20, 21, 26, 0.92) 62%);
}

.page-about .about-cta .h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
}

.page-about .about-cta p {
  max-width: 34em;
  margin: 0 0 20px;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ivory);
  opacity: 0.85;
}

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

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-about .cmp-row {
    flex-wrap: nowrap;
  }

  .page-about .cmp-key {
    flex: 0 0 168px;
    padding: 18px;
  }

  .page-about .cmp-val {
    flex: 1 1 0;
    padding: 18px;
  }

  .page-about .cmp-head .cmp-val {
    padding: 18px;
  }

  .page-about .cmp-val::before {
    display: none;
  }

  .page-about .about-cmp-side {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: end;
    gap: 20px;
  }

  .page-about .partner-list {
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  }

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

  .page-about .service-row {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
  }

  .page-about .about-archive-grid {
    grid-template-columns: var(--about-axis-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-about .about-axis {
    display: block;
    position: sticky;
    top: 120px;
    align-self: start;
    padding-top: 6px;
  }

  .page-about .tl-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
    padding-left: 0;
  }

  .page-about .tl-list::before {
    left: 0;
    right: 0;
    top: 0;
    bottom: auto;
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, var(--gold-deep), var(--gold), var(--gold-deep));
  }

  .page-about .tl-item {
    padding-top: 24px;
  }

  .page-about .tl-dot {
    left: 0;
    top: -5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .index-axis-link {
    transition: color var(--dur) linear;
  }

  .page-about .index-axis-link:hover,
  .page-about .index-axis-link:focus-visible,
  .page-about .index-axis-link[aria-current="location"] {
    transform: none;
  }
}
<<<END>>>