/* ============ 品牌档案页 专属样式 ============ */
.page-about {
  --about-rule: rgba(138, 151, 166, .18);
  --about-rule-strong: rgba(0, 229, 255, .30);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(20px, 3vw, 40px) 0 clamp(40px, 6vw, 84px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -30% -25% auto -25%;
  height: 165%;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(142deg, rgba(0, 229, 255, .14) 0%, rgba(0, 229, 255, 0) 44%),
    linear-gradient(322deg, rgba(255, 179, 0, .11) 0%, rgba(255, 179, 0, 0) 46%),
    linear-gradient(180deg, rgba(10, 22, 40, 0) 62%, rgba(0, 0, 0, .28) 100%);
}

.page-about .about-hero .breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  font-size: 13px;
}

.page-about .about-hero .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--gray);
}

.page-about .about-hero .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-about .about-hero .breadcrumb a:hover,
.page-about .about-hero .breadcrumb a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-size: clamp(27px, 4.3vw, 50px);
  line-height: 1.16;
  letter-spacing: -.022em;
  color: var(--panel);
  max-width: 20ch;
}

.page-about .about-hero__desc {
  margin: 20px 0 0;
  max-width: 68ch;
  line-height: 1.78;
  color: var(--text);
  font-size: clamp(15px, 1.3vw, 16.5px);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero__stats {
  padding: 22px 22px 24px;
  border: 2px solid var(--about-rule-strong);
  box-shadow: var(--shadow-hard);
  background: var(--carbon);
}

.page-about .about-hero__stats-title {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
  text-transform: uppercase;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(0, 229, 255, .22);
}

.page-about .about-hero__stat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 16px;
}

.page-about .about-hero__stat-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 10px;
  border-left: 2px solid var(--steel);
}

.page-about .about-hero__num {
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1;
  font-weight: 700;
  color: var(--panel);
  letter-spacing: -.02em;
}

.page-about .about-hero__num--amber {
  color: var(--amber);
}

.page-about .about-hero__label {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--gray);
}

/* ---------- 通用区块骨架 ---------- */
.page-about .about-block {
  padding: clamp(40px, 6vw, 80px) 0;
  border-top: 2px solid var(--about-rule);
}

.page-about .about-block--last {
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-about .about-block .section-head {
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

/* ---------- 定位 ---------- */
.page-about .about-position {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-about .about-position__body {
  max-width: 74ch;
}

.page-about .about-position__mark {
  padding: 20px 22px 22px;
  border: 2px solid var(--cyan);
  box-shadow: var(--shadow-soft);
  background: linear-gradient(160deg, rgba(0, 229, 255, .10), rgba(17, 20, 24, .9));
}

.page-about .about-position__mark-k {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-about .about-position__mark-v {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--panel);
}

.page-about .about-position__mark-note {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 三块内容：横向主题带 ---------- */
.page-about .topic-strip {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .topic-card {
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border: 2px solid var(--about-rule);
  box-shadow: var(--shadow-soft);
  background: var(--carbon);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .topic-card:hover,
.page-about .topic-card:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lift);
  border-color: var(--about-rule-strong);
}

.page-about .topic-card.panel--amber {
  border-color: rgba(255, 179, 0, .55);
}

.page-about .topic-card__idx {
  margin: 0;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-about .topic-card.panel--amber .topic-card__idx {
  color: var(--amber);
}

.page-about .topic-card__title {
  margin: 0;
  font-size: clamp(18px, 1.9vw, 21px);
  letter-spacing: -.01em;
  color: var(--panel);
  line-height: 1.4;
}

.page-about .topic-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
}

.page-about .topic-card__meta {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--about-rule);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gray);
  text-transform: uppercase;
}

.page-about .about-linkline {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

.page-about .about-linkline a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .4);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .about-linkline a:hover,
.page-about .about-linkline a:focus-visible {
  color: var(--panel);
  border-bottom-color: var(--panel);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

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

.page-about .about-team__caption {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

.page-about .about-team__cards {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .team-card {
  padding: 18px 20px 20px;
  border: 2px solid var(--about-rule);
  box-shadow: var(--shadow-soft);
  background: var(--carbon);
  cursor: default;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .team-card:hover,
.page-about .team-card:focus-visible,
.page-about .team-card:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lift);
  border-color: var(--amber);
  outline: none;
}

.page-about .team-card__name {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--panel);
}

.page-about .team-card__line {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--amber);
}

.page-about .team-card__detail {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--text);
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease), margin var(--dur) var(--ease);
}

.page-about .team-card:hover .team-card__detail,
.page-about .team-card:focus-visible .team-card__detail,
.page-about .team-card:focus-within .team-card__detail {
  max-height: 300px;
  opacity: 1;
  margin-top: 12px;
}

/* ---------- 流程 SVG ---------- */
.page-about .about-flowwrap {
  margin-top: clamp(24px, 3.4vw, 40px);
  padding: 20px 22px 22px;
  border: 2px solid var(--about-rule);
  background: linear-gradient(120deg, rgba(42, 52, 65, .55), rgba(17, 20, 24, .85));
}

.page-about .about-flow {
  display: block;
  width: 100%;
  max-width: 640px;
  height: auto;
}

.page-about .about-flow__dot--a { fill: var(--cyan); }
.page-about .about-flow__dot--b { fill: var(--amber); }
.page-about .about-flow__dot--c { fill: var(--lime); }

.page-about .about-flow__label {
  fill: var(--gray);
  font-size: 13px;
  font-family: var(--font-sans);
}

.page-about .about-flow__note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--text);
  max-width: 72ch;
}

/* ---------- 区域服务 ---------- */
.page-about .region-grid {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-about .region-grid__figure {
  margin: 0;
}

.page-about .region-grid__body .prose {
  margin: 0;
}

.page-about .region-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--about-rule);
}

.page-about .region-list li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .region-list__k {
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -.02em;
}

.page-about .region-list__v {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 发展节点 ---------- */
.page-about .history-grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-about .history-grid__figure {
  margin: 0;
}

.page-about .tl {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 30px;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--amber) 52%, rgba(0, 229, 255, .12) 100%);
}

.page-about .tl-item {
  position: relative;
  padding: 14px 0 18px;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .tl-item:last-child {
  border-bottom: none;
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 22px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .tl-item:focus-visible,
.page-about .tl-item:hover {
  outline: none;
}

.page-about .tl-item:focus-visible::before,
.page-about .tl-item:hover::before {
  border-color: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 179, 0, .18);
}

.page-about .tl-year {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--amber);
}

.page-about .tl-title {
  margin: 8px 0 0;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--panel);
  line-height: 1.45;
}

.page-about .tl-sum {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--text);
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease), margin var(--dur) var(--ease);
}

.page-about .tl-item:hover .tl-sum,
.page-about .tl-item:focus-visible .tl-sum,
.page-about .tl-item:focus-within .tl-sum {
  max-height: 260px;
  opacity: 1;
  margin-top: 10px;
}

/* ---------- 备案 / 收尾面板 ---------- */
.page-about .about-legal {
  margin-top: clamp(28px, 4vw, 46px);
  padding: 24px 24px 26px;
  border: 2px solid rgba(124, 77, 255, .5);
  box-shadow: var(--shadow-soft);
  background: linear-gradient(150deg, rgba(124, 77, 255, .14), rgba(17, 20, 24, .92));
  display: grid;
  gap: 8px;
}

.page-about .about-legal__k {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--violet);
  text-transform: uppercase;
}

.page-about .about-legal__v {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  color: var(--panel);
  letter-spacing: .02em;
}

.page-about .about-legal__note {
  margin: 8px 0 0;
  max-width: 74ch;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--text);
}

.page-about .about-legal__links {
  margin: 14px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.page-about .about-legal__links a {
  font-size: 13.5px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .38);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-legal__links a:hover,
.page-about .about-legal__links a:focus-visible {
  color: var(--panel);
  border-bottom-color: var(--panel);
}

/* ---------- 通用图片处理 ---------- */
.page-about .img-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .about-hero__stat-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-about .topic-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-about .about-position {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .region-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }

  .page-about .history-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-about .about-hero__stat-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 20px;
  }
}

@media (max-width: 480px) {
  .page-about .region-list li {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 10px;
  }

  .page-about .about-hero__actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .topic-card,
  .page-about .team-card,
  .page-about .team-card__detail,
  .page-about .tl-sum,
  .page-about .tl-item::before {
    transition: none;
  }

  .page-about .team-card__detail,
  .page-about .tl-sum {
    max-height: none;
    opacity: 1;
  }
}
<<<END>>>