.page-about{
  --about-warm:var(--orange);
  --about-bar-h:14px;
  position:relative;
  padding-bottom:104px;
}

.page-about .about-crumbs{
  padding-top:18px;
  padding-bottom:4px;
}
.page-about .breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-dim);
}
.page-about .breadcrumbs a{
  color:var(--text-dim);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.page-about .breadcrumbs a:hover,
.page-about .breadcrumbs a:focus-visible{
  color:var(--cyan);
  border-bottom-color:var(--cyan);
}
.page-about .breadcrumbs [aria-current]{
  color:var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero{
  padding-top:clamp(20px,4vw,36px);
  padding-bottom:clamp(44px,7vw,84px);
}
.page-about .about-hero-grid{
  display:grid;
  gap:clamp(28px,5vw,56px);
  align-items:center;
}
.page-about .about-hero-title{
  margin:12px 0 18px;
  max-width:16ch;
}
.page-about .about-hero-lede{
  max-width:56ch;
}
.page-about .about-hero-actions{
  margin-top:26px;
}
.page-about .about-hero-visual{
  position:relative;
  border:2px solid var(--edge);
  background:linear-gradient(150deg,rgba(14,42,71,.96),rgba(7,26,47,.92));
  box-shadow:var(--shadow-hard);
  overflow:hidden;
}
.page-about .about-viz{
  display:block;
  width:100%;
  height:auto;
}
.page-about .about-hero-badge{
  position:absolute;
  left:14px;
  bottom:14px;
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:8px 14px;
  background:var(--space-blue);
  border:2px solid var(--cyan);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--text-dim);
}
.page-about .about-hero-badge strong{
  font-family:var(--font-mono);
  font-size:20px;
  font-weight:800;
  color:var(--cyan);
  letter-spacing:0;
}

/* ---------- 通用章节抬头 ---------- */
.page-about .about-head{
  margin-bottom:clamp(26px,4vw,44px);
}
.page-about .about-head-note{
  margin-top:12px;
  max-width:60ch;
  color:var(--text-dim);
  font-size:16px;
  line-height:1.75;
}

/* ---------- 品牌故事 ---------- */
.page-about .about-story-grid{
  display:grid;
  gap:clamp(26px,4vw,48px);
}
.page-about .about-story-copy h2{
  margin:10px 0 18px;
}
.page-about .about-story-copy p{
  margin-bottom:16px;
}
.page-about .about-story-figure{
  order:-1;
}
.page-about .about-story-figure img,
.page-about .about-team-figure img,
.page-about .about-principles-figure img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
}
.page-about .about-scenes{
  list-style:none;
  margin:24px 0 0;
  padding:0;
  display:grid;
  gap:0;
  border-top:2px solid var(--edge);
}
.page-about .about-scene{
  display:grid;
  gap:4px;
  padding:14px 0;
  border-bottom:1px solid var(--edge);
}
.page-about .about-scene-key{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--cyan);
}
.page-about .about-scene-text{
  font-size:15px;
  line-height:1.7;
  color:var(--text);
}

/* ---------- 时间轴 ---------- */
.page-about .about-tl{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:0;
}
.page-about .about-tl-item{
  position:relative;
  display:grid;
  gap:8px;
  margin-left:6px;
  padding:0 0 34px 26px;
  border-left:2px solid var(--edge);
}
.page-about .about-tl-item::before{
  content:"";
  position:absolute;
  left:-8px;
  top:12px;
  width:12px;
  height:12px;
  background:var(--cyan);
  border:3px solid var(--bg);
  box-shadow:0 0 0 2px var(--cyan);
}
.page-about .about-tl-item:last-child{
  padding-bottom:0;
}
.page-about .about-tl-year{
  display:flex;
  align-items:center;
  gap:10px;
}
.page-about .about-tl-num{
  font-family:var(--font-mono);
  font-size:clamp(32px,7vw,50px);
  font-weight:800;
  line-height:.95;
  letter-spacing:-.03em;
  color:var(--cyan);
}
.page-about .about-tl-title{
  margin:0 0 8px;
  font-size:clamp(19px,2.4vw,24px);
  font-weight:800;
  letter-spacing:-.01em;
}
.page-about .about-tl-body p{
  margin:0;
  max-width:64ch;
  color:var(--text-dim);
  font-size:16px;
  line-height:1.78;
}

/* ---------- 团队 ---------- */
.page-about .about-team-grid{
  display:grid;
  gap:clamp(26px,4vw,44px);
}
.page-about .about-team-body .prose{
  margin-top:0;
}
.page-about .about-team-bar{
  display:flex;
  height:var(--about-bar-h);
  margin:24px 0 22px;
  border:2px solid var(--edge);
  background:var(--space-blue);
  overflow:hidden;
}
.page-about .about-seg{
  display:block;
  height:100%;
}
.page-about .about-seg--dev{width:47.06%;background:var(--cyan);}
.page-about .about-seg--data{width:23.53%;background:var(--teal);}
.page-about .about-seg--cs{width:17.65%;background:var(--orange);}
.page-about .about-seg--ops{width:11.76%;background:var(--lime);}

.page-about .about-legend{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:0;
}
.page-about .about-legend-item{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 10px;
  padding:12px 0;
  border-bottom:1px solid var(--edge);
}
.page-about .about-legend-item:last-child{
  border-bottom:none;
}
.page-about .about-dot{
  width:10px;
  height:10px;
  flex:0 0 10px;
  border-radius:50%;
}
.page-about .about-dot--dev{background:var(--cyan);}
.page-about .about-dot--data{background:var(--teal);}
.page-about .about-dot--cs{background:var(--orange);}
.page-about .about-dot--ops{background:var(--lime);}
.page-about .about-legend-name{
  font-weight:800;
  font-size:16px;
}
.page-about .about-legend-num{
  color:var(--cyan);
  font-size:14px;
}
.page-about .about-legend-desc{
  flex-basis:100%;
  margin:0;
  padding-left:20px;
  color:var(--text-dim);
  font-size:14px;
  line-height:1.65;
}

/* ---------- 服务原则 ---------- */
.page-about .about-principles-grid{
  display:grid;
  gap:clamp(26px,4vw,48px);
  align-items:start;
}
.page-about .about-principles-body h2{
  margin:10px 0 22px;
}
.page-about .about-rules{
  list-style:none;
  margin:0;
  padding:0;
}
.page-about .about-rule{
  margin:0 0 22px;
  padding:2px 0 2px 18px;
  border-left:3px solid var(--cyan);
}
.page-about .about-rule:last-child{
  margin-bottom:0;
}
.page-about .about-rule h3{
  margin:0 0 6px;
  font-size:18px;
  font-weight:800;
  letter-spacing:-.01em;
}
.page-about .about-rule p{
  margin:0;
  max-width:60ch;
  color:var(--text-dim);
  font-size:15px;
  line-height:1.78;
}
.page-about .about-certs{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
  padding-top:22px;
  border-top:2px solid var(--edge);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners-grid{
  display:grid;
  gap:clamp(26px,4vw,48px);
  align-items:center;
}
.page-about .about-ring{
  display:flex;
  justify-content:center;
  padding:10px;
  border:2px solid var(--edge);
  background:radial-gradient(circle at 50% 45%,rgba(24,224,255,.10),rgba(7,26,47,0) 70%);
}
.page-about .about-ring svg{
  display:block;
  width:100%;
  max-width:340px;
  height:auto;
}
.page-about .about-partners-body .prose{
  margin-top:0;
}
.page-about .about-partner-list{
  list-style:none;
  margin:22px 0 24px;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.page-about .about-partner-list li{
  padding:8px 14px;
  border:1px solid var(--edge);
  background:var(--surface);
  font-size:14px;
  color:var(--text);
}
.page-about .about-honors{
  border:2px solid var(--edge);
  background:var(--surface);
}
.page-about .about-honors summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 18px;
  font-weight:800;
  font-size:16px;
  cursor:pointer;
  list-style:none;
}
.page-about .about-honors summary::-webkit-details-marker{
  display:none;
}
.page-about .about-honors summary::after{
  content:"+";
  font-family:var(--font-mono);
  font-size:20px;
  line-height:1;
  color:var(--cyan);
}
.page-about .about-honors[open] summary::after{
  content:"–";
}
.page-about .about-honors-list{
  list-style:none;
  margin:0;
  padding:0 18px 16px;
  display:grid;
  gap:10px;
}
.page-about .about-honors-list li{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  font-size:15px;
  line-height:1.7;
  color:var(--text-dim);
  border-top:1px solid var(--edge);
  padding-top:10px;
}
.page-about .about-honors-list .u-mono{
  color:var(--lime);
}

/* ---------- 收尾 CTA ---------- */
.page-about .about-cta-inner{
  display:grid;
  gap:24px;
  padding:clamp(24px,4vw,44px);
  border:2px solid var(--cyan);
  background:linear-gradient(135deg,rgba(24,224,255,.14),rgba(255,106,42,.10));
  box-shadow:var(--shadow-hard);
}
.page-about .about-cta-inner h2{
  margin:0 0 10px;
}
.page-about .about-cta-inner p{
  margin:0;
  max-width:56ch;
  color:var(--text-dim);
  font-size:16px;
  line-height:1.75;
}

/* ---------- 悬浮快捷入口 ---------- */
.page-about .about-dock{
  position:fixed;
  left:12px;
  right:12px;
  bottom:12px;
  z-index:20;
  display:flex;
  gap:8px;
  overflow-x:auto;
  padding:8px;
  background:rgba(14,42,71,.94);
  border:2px solid var(--edge);
  border-radius:999px;
  box-shadow:4px 4px 0 0 #040F1D;
}
.page-about .about-dock-link{
  flex:0 0 auto;
  padding:8px 14px;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  color:var(--mist);
  text-decoration:none;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.page-about .about-dock-link:hover,
.page-about .about-dock-link:focus-visible{
  background:var(--cyan);
  color:var(--space-blue);
}

/* ---------- 断点 ---------- */
@media (min-width:760px){
  .page-about .about-scenes{
    grid-template-columns:1fr 1fr;
    column-gap:28px;
  }
  .page-about .about-scene{
    padding:16px 0;
  }
  .page-about .about-dock{
    left:auto;
    right:20px;
    bottom:auto;
    top:50%;
    transform:translateY(-50%);
    flex-direction:column;
    overflow:visible;
    padding:10px;
  }
  .page-about .about-dock-link{
    text-align:center;
    padding:8px 12px;
  }
  .page-about{
    padding-bottom:0;
  }
}

@media (min-width:900px){
  .page-about .about-hero-grid{
    grid-template-columns:1.02fr .98fr;
  }
  .page-about .about-story-grid{
    grid-template-columns:1.1fr .9fr;
    align-items:start;
  }
  .page-about .about-story-figure{
    order:0;
    position:sticky;
    top:calc(var(--header-h) + 24px);
  }
  .page-about .about-team-grid{
    grid-template-columns:.85fr 1.15fr;
    align-items:start;
  }
  .page-about .about-principles-grid{
    grid-template-columns:.9fr 1.1fr;
  }
  .page-about .about-principles-figure{
    position:sticky;
    top:calc(var(--header-h) + 24px);
  }
  .page-about .about-partners-grid{
    grid-template-columns:.8fr 1.2fr;
  }
  .page-about .about-cta-inner{
    grid-template-columns:1fr auto;
    align-items:center;
  }
  .page-about .about-tl-item{
    grid-template-columns:220px 1fr;
    gap:28px;
    padding-left:34px;
  }
  .page-about .about-tl-year{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }
  .page-about .about-tl-item::before{
    top:14px;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-about .about-dock-link,
  .page-about .breadcrumbs a{
    transition:none;
  }
}
<<<END>>>