.page-about {
  --about-line: #D9CDB6;
  background: var(--cream);
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  padding: 20px 0 0;
}
.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}
.page-about .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--cream-2);
}
.page-about .breadcrumb a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-about .breadcrumb a:hover {
  color: var(--gold-deep);
  border-bottom-color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 40px 0 56px;
  background:
    linear-gradient(180deg, rgba(233, 162, 27, 0.10), rgba(233, 162, 27, 0) 62%),
    repeating-linear-gradient(0deg, transparent 0 23px, rgba(217, 205, 182, 0.5) 23px 24px),
    repeating-linear-gradient(90deg, transparent 0 23px, rgba(217, 205, 182, 0.5) 23px 24px);
  background-color: var(--cream);
}
.page-about .about-hero__inner {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.page-about .about-hero__copy {
  position: relative;
  padding: 28px 24px 28px 26px;
  background: var(--white);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
  border-left: 3px solid var(--gold);
}
.page-about .about-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--navy);
}
.page-about .about-hero .lead {
  max-width: 34em;
  margin: 18px 0 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}
.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: 26px 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--cream-2);
}
.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-about .fact-k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  text-transform: uppercase;
}
.page-about .fact-v {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.01em;
}
.page-about .about-hero__mark {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-left: 6px;
}
.page-about .mark-line {
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold-deep) 100%);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}
.page-about .mark-line:nth-child(1) { width: 34%; opacity: 0.35; }
.page-about .mark-line:nth-child(2) { width: 52%; opacity: 0.5; }
.page-about .mark-line:nth-child(3) { width: 70%; opacity: 0.68; }
.page-about .mark-line:nth-child(4) { width: 88%; opacity: 0.85; }
.page-about .mark-line:nth-child(5) { width: 100%; }

/* ---------- 通用章节头 ---------- */
.page-about .section-head {
  max-width: 44em;
  margin: 0 0 32px;
}
.page-about .section-head h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--navy);
}
.page-about .section-head p {
  margin: 14px 0 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}
.page-about .section-head--dark h2 {
  color: var(--white);
}
.page-about .section-head--dark p {
  color: rgba(248, 242, 231, 0.72);
}
.page-about .index-chip--dark {
  color: var(--gold);
  border-color: rgba(233, 162, 27, 0.5);
}

/* ---------- 三块业务 ---------- */
.page-about .about-business {
  padding: 8px 0 64px;
}
.page-about .biz-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-about .biz-card {
  position: relative;
  padding: 26px 24px 28px;
  background: var(--white);
  border-top: 2px solid var(--navy);
  border-right: 1px solid var(--cream-2);
  border-bottom: 1px solid var(--cream-2);
  border-left: 1px solid var(--cream-2);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-about .biz-card:hover {
  border-top-color: var(--gold);
  background: var(--gold-mist);
  transform: translateY(-3px);
}
.page-about .biz-card--accent {
  border-top-color: var(--gold);
  background: linear-gradient(180deg, rgba(251, 231, 196, 0.55), rgba(255, 255, 255, 0) 46%);
  background-color: var(--white);
}
.page-about .biz-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
  border: 1px solid var(--gold);
  padding: 3px 9px;
}
.page-about .biz-card h3 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--navy);
}
.page-about .biz-card p {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}
.page-about .biz-list {
  margin: 18px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px dashed var(--about-line);
}
.page-about .biz-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 9px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-soft);
}
.page-about .biz-list li:last-child {
  margin-bottom: 0;
}
.page-about .biz-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 2px;
  background: var(--gold);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  padding: 0 0 64px;
}
.page-about .about-banner {
  margin: 0 0 44px;
}
.page-about .timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 4px 0 0 30px;
}
.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--navy-2) 0%, var(--gold) 100%);
}
.page-about .tl-item {
  position: relative;
  margin-bottom: 24px;
}
.page-about .tl-item:last-child {
  margin-bottom: 0;
}
.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 26px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cream);
  border: 2px solid var(--navy-2);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.page-about .tl-item:hover::before,
.page-about .tl-item:focus-within::before {
  background: var(--gold);
  border-color: var(--gold-deep);
  box-shadow: 0 0 0 5px rgba(233, 162, 27, 0.18);
}
.page-about .tl-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
  margin-bottom: 8px;
}
.page-about .tl-card {
  position: relative;
  padding: 22px 22px 24px;
  background: var(--white);
  border-left: 2px solid var(--cream-2);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-about .tl-item:hover .tl-card {
  border-left-color: var(--gold);
  background: var(--gold-mist);
}
.page-about .tl-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.42;
  color: var(--navy);
}
.page-about .tl-card p {
  margin: 11px 0 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}
.page-about .tl-card--now {
  background: var(--navy);
  border-left-color: var(--gold);
}
.page-about .tl-card--now h3 {
  color: var(--white);
}
.page-about .tl-card--now p {
  color: rgba(248, 242, 231, 0.82);
}
.page-about .tl-item:hover .tl-card--now {
  background: var(--navy-2);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding: 56px 0 60px;
  background: var(--navy);
  color: var(--white);
}
.page-about .team-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.page-about .team-figure {
  margin: 0;
}
.page-about .team-body {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.page-about .team-intro {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(248, 242, 231, 0.82);
  max-width: 34em;
}
.page-about .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(233, 162, 27, 0.22);
  border: 1px solid rgba(233, 162, 27, 0.22);
}
.page-about .flow-step {
  padding: 18px 18px 20px;
  background: var(--navy-2);
  transition: background var(--dur) var(--ease);
}
.page-about .flow-step:hover {
  background: #234067;
}
.page-about .flow-idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}
.page-about .flow-step h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--white);
}
.page-about .flow-step p {
  margin: 8px 0 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.78;
  color: rgba(248, 242, 231, 0.72);
}

/* ---------- 覆盖与节点 ---------- */
.page-about .about-reach {
  padding: 60px 0 64px;
}
.page-about .reach-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.page-about .reach-copy h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--navy);
}
.page-about .reach-copy p {
  margin: 16px 0 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  max-width: 36em;
}
.page-about .reach-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 30px 0 0;
  padding: 0;
  background: var(--cream-2);
  border: 1px solid var(--cream-2);
}
.page-about .reach-stat {
  padding: 18px 16px 20px;
  background: var(--white);
  transition: background var(--dur) var(--ease);
}
.page-about .reach-stat:hover {
  background: var(--gold-mist);
}
.page-about .reach-stat dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}
.page-about .reach-stat dd {
  margin: 8px 0 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.page-about .stat-num {
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold-deep);
}
.page-about .stat-unit {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--ink-soft);
}
.page-about .reach-figure {
  margin: 0;
}

/* ---------- 内容沉淀 ---------- */
.page-about .about-scale {
  padding: 0 0 64px;
}
.page-about .scale-panel {
  padding: 36px 24px 32px;
  background: var(--navy);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 40px), calc(100% - 40px) 100%, 0 100%);
}
.page-about .scale-head h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--white);
}
.page-about .scale-head p {
  margin: 14px 0 0;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(248, 242, 231, 0.72);
}
.page-about .scale-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 32px;
  background: rgba(233, 162, 27, 0.24);
  border: 1px solid rgba(233, 162, 27, 0.24);
}
.page-about .scale-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 20px 24px;
  background: var(--navy-2);
  transition: background var(--dur) var(--ease);
}
.page-about .scale-item:hover {
  background: #234067;
}
.page-about .scale-cap {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
}
.page-about .scale-num {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--white);
}
.page-about .scale-desc {
  margin-top: 6px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.78;
  color: rgba(248, 242, 231, 0.7);
}

/* ---------- 后续导航 ---------- */
.page-about .about-next {
  padding: 56px 0 72px;
}
.page-about .next-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-about .next-copy h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--navy);
}
.page-about .next-copy p {
  margin: 14px 0 0;
  max-width: 34em;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}
.page-about .next-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--cream-2);
  border: 1px solid var(--cream-2);
}
.page-about .next-link {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "tag arrow"
    "title arrow";
  align-items: center;
  gap: 4px 14px;
  padding: 18px 20px 20px;
  background: var(--white);
  text-decoration: none;
  transition: background var(--dur) var(--ease);
}
.page-about .next-link:hover,
.page-about .next-link:focus-visible {
  background: var(--gold-mist);
}
.page-about .next-link__tag {
  grid-area: tag;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
}
.page-about .next-link__title {
  grid-area: title;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--navy);
}
.page-about .next-link__arrow {
  grid-area: arrow;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cream-2);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-about .next-link:hover .next-link__arrow,
.page-about .next-link:focus-visible .next-link__arrow {
  color: var(--gold);
  transform: translateX(4px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .biz-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .biz-grid .biz-card:last-child {
    grid-column: 1 / -1;
  }
  .page-about .flow-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .reach-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .scale-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .next-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-about .about-hero {
    padding: 56px 0 76px;
  }
  .page-about .about-hero__inner {
    flex-direction: row;
    align-items: stretch;
    gap: 48px;
  }
  .page-about .about-hero__copy {
    flex: 1 1 auto;
    padding: 40px 44px 44px 46px;
  }
  .page-about .about-hero h1 {
    font-size: 46px;
  }
  .page-about .about-hero .lead {
    font-size: 17px;
  }
  .page-about .about-hero__mark {
    flex: 0 0 180px;
    justify-content: center;
    gap: 14px;
  }

  .page-about .section-head h2 {
    font-size: 34px;
  }

  .page-about .biz-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    background: var(--about-line);
    border: 1px solid var(--about-line);
  }
  .page-about .biz-grid .biz-card:last-child {
    grid-column: auto;
  }
  .page-about .biz-card {
    border: 1px solid transparent;
    border-top-width: 2px;
  }
  .page-about .biz-card:hover {
    transform: none;
  }

  .page-about .timeline {
    padding-left: 40px;
  }
  .page-about .timeline::before {
    left: 11px;
  }
  .page-about .tl-item::before {
    left: -36px;
    top: 30px;
    width: 16px;
    height: 16px;
  }
  .page-about .tl-item {
    margin-bottom: 30px;
  }
  .page-about .tl-card {
    padding: 26px 30px 28px;
  }
  .page-about .tl-card h3 {
    font-size: 20px;
  }
  .page-about .tl-item:nth-child(even) .tl-card {
    margin-left: 9%;
  }
  .page-about .tl-item:nth-child(3) .tl-card {
    margin-left: 0;
    margin-right: 9%;
  }
  .page-about .tl-item:nth-child(5) .tl-card {
    margin-left: 9%;
  }

  .page-about .about-team {
    padding: 76px 0 80px;
  }
  .page-about .team-layout {
    grid-template-columns: 1fr 1.15fr;
    gap: 44px;
    align-items: start;
  }
  .page-about .flow-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .reach-layout {
    grid-template-columns: 1.3fr 1fr;
    gap: 48px;
    align-items: start;
  }
  .page-about .reach-copy h2 {
    font-size: 34px;
  }
  .page-about .stat-num {
    font-size: 38px;
  }

  .page-about .scale-panel {
    padding: 48px 48px 44px;
  }
  .page-about .scale-head h2 {
    font-size: 34px;
  }
  .page-about .scale-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .scale-num {
    font-size: 50px;
  }

  .page-about .next-layout {
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
    align-items: start;
  }
  .page-about .next-copy h2 {
    font-size: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .biz-card:hover,
  .page-about .next-link:hover .next-link__arrow,
  .page-about .next-link:focus-visible .next-link__arrow {
    transform: none;
  }
  .page-about .tl-item:hover::before,
  .page-about .tl-item:focus-within::before {
    box-shadow: none;
  }
}
<<<END>>>