.page-about .about-crumb-row{
  padding-top:clamp(16px,2.6vw,26px);
}

/* 首屏 */
.page-about .about-hero{
  padding:clamp(18px,2.8vw,32px) 0 clamp(28px,4vw,48px);
}

.page-about .about-hero-split{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(22px,3.2vw,40px);
}

.page-about .about-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin:0 0 16px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--teal);
}

.page-about .about-kicker::before{
  content:"";
  width:26px;
  height:2px;
  background:var(--orange);
}

.page-about .about-hero h1{
  margin:0 0 18px;
  font-weight:800;
  font-size:clamp(29px,5.2vw,54px);
  line-height:1.1;
  letter-spacing:-.012em;
  color:var(--ink);
  max-width:15em;
}

.page-about .about-lead{
  margin:0;
  max-width:36em;
  font-size:clamp(15px,1.15vw,17px);
  line-height:1.85;
  color:var(--ink-soft);
}

.page-about .about-hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:clamp(20px,3vw,28px);
}

.page-about .about-hero-panel{
  position:relative;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:clamp(20px,3vw,30px);
  min-height:clamp(250px,34vw,340px);
  padding:clamp(22px,3vw,32px);
  border-radius:var(--r-lg);
  background:
    radial-gradient(125% 130% at 88% -12%, #175247 0%, rgba(8,59,53,.92) 44%, var(--ink) 100%);
  color:var(--paper-light);
  box-shadow:var(--shadow-float);
}

.page-about .about-hero-panel::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right, rgba(247,241,230,.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(247,241,230,.07) 1px, transparent 1px);
  background-size:46px 46px;
  pointer-events:none;
}

.page-about .about-hero-panel > *{
  position:relative;
}

.page-about .about-hero-big{
  display:flex;
  align-items:baseline;
  flex-wrap:wrap;
  gap:10px 14px;
}

.page-about .about-hero-num{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(56px,9vw,102px);
  line-height:.86;
  letter-spacing:-.02em;
  color:var(--cyan);
}

.page-about .about-hero-unit{
  font-size:14px;
  letter-spacing:.06em;
  color:rgba(247,241,230,.76);
}

.page-about .about-hero-mini{
  list-style:none;
  margin:0;
  padding:16px 0 0;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  border-top:1px solid var(--line-invert);
}

.page-about .about-hero-mini li{
  display:flex;
  align-items:baseline;
  gap:8px;
  font-size:13px;
  color:rgba(247,241,230,.7);
}

.page-about .about-hero-mini b{
  font-family:var(--font-mono);
  font-size:20px;
  font-weight:700;
  color:var(--paper-light);
}

/* 章节索引胶囊 */
.page-about .about-index{
  display:flex;
  gap:10px;
  overflow-x:auto;
  margin-top:clamp(24px,3.6vw,40px);
  padding:clamp(16px,2.4vw,22px) 0 4px;
  border-top:1px solid var(--line);
  scrollbar-width:thin;
}

.page-about .about-index-link{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  padding:9px 16px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  background:var(--paper-light);
  color:var(--ink);
  font-size:14px;
  white-space:nowrap;
  text-decoration:none;
  transition:transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-about .about-index-link:hover{
  transform:translateY(-2px);
  background:var(--ink);
  border-color:var(--ink);
  color:var(--paper-light);
}

.page-about .about-index-link:focus-visible{
  outline:2px solid var(--orange);
  outline-offset:3px;
}

/* 章节骨架 */
.page-about .about-block{
  padding:clamp(40px,5.6vw,78px) 0;
}

.page-about .about-block--paper{
  background:var(--paper);
}

.page-about .about-block--light{
  background:var(--paper-light);
}

.page-about .about-block--ink{
  background:var(--deep);
  color:var(--paper-light);
}

.page-about .about-block-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(16px,2.6vw,28px);
}

.page-about .about-mark{
  display:flex;
  align-items:baseline;
  gap:12px;
}

.page-about .about-mark-idx{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(28px,3.6vw,40px);
  line-height:1;
  color:var(--orange);
}

.page-about .about-mark-label{
  font-size:12.5px;
  letter-spacing:.2em;
  color:var(--muted);
}

.page-about .about-block--ink .about-mark-idx{
  color:var(--cyan);
}

.page-about .about-block--ink .about-mark-label{
  color:rgba(247,241,230,.62);
}

.page-about .about-main{
  min-width:0;
}

.page-about .about-h2{
  margin:0 0 12px;
  font-weight:800;
  font-size:clamp(23px,3vw,33px);
  line-height:1.22;
  letter-spacing:-.01em;
  color:var(--ink);
}

.page-about .about-block--ink .about-h2{
  color:var(--paper-light);
}

.page-about .about-sub{
  margin:0 0 clamp(22px,3vw,32px);
  max-width:40em;
  font-size:15.5px;
  line-height:1.85;
  color:var(--ink-soft);
}

.page-about .about-block--ink .about-sub{
  color:rgba(247,241,230,.78);
}

.page-about .about-main a{
  color:var(--teal);
  text-underline-offset:3px;
}

.page-about .about-main a:focus-visible{
  outline:2px solid var(--orange);
  outline-offset:2px;
}

/* 历程 */
.page-about .about-banner{
  margin:0 0 clamp(24px,3.6vw,38px);
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--ink-soft);
  box-shadow:var(--shadow-card);
}

.page-about .about-banner img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}

.page-about .about-banner-cap{
  padding:11px 16px 13px;
  font-size:12.5px;
  letter-spacing:.05em;
  color:rgba(247,241,230,.72);
  background:var(--ink-soft);
}

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

.page-about .about-timeline::before{
  content:"";
  position:absolute;
  left:7px;
  top:10px;
  bottom:14px;
  width:2px;
  background:linear-gradient(180deg,var(--teal) 0%,var(--orange) 100%);
  opacity:.42;
}

.page-about .about-tl-item{
  position:relative;
  padding:0 0 clamp(20px,3vw,30px) clamp(28px,3vw,36px);
}

.page-about .about-tl-item:last-child{
  padding-bottom:0;
}

.page-about .about-tl-item::before{
  content:"";
  position:absolute;
  left:0;
  top:5px;
  width:16px;
  height:16px;
  border-radius:50%;
  background:var(--paper-light);
  border:2px solid var(--teal);
  transition:transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-about .about-tl-item:hover::before{
  transform:scale(1.18);
  border-color:var(--orange);
  background:var(--orange);
}

.page-about .about-tl-year{
  display:inline-block;
  margin-bottom:6px;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:15px;
  letter-spacing:.08em;
  color:var(--teal);
}

.page-about .about-tl-body h3{
  margin:0 0 6px;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
}

.page-about .about-tl-body p{
  margin:0;
  max-width:38em;
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-soft);
}

/* 团队 */
.page-about .about-team-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(20px,3vw,32px);
}

.page-about .about-stats{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:12px;
}

.page-about .about-stat{
  padding:clamp(14px,2vw,20px);
  border:1px solid var(--line-invert);
  border-radius:var(--r-md);
  background:rgba(247,241,230,.04);
  transition:transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-about .about-stat:hover{
  transform:translateY(-3px);
  border-color:rgba(45,212,191,.55);
  background:rgba(45,212,191,.08);
}

.page-about .about-stat-num{
  display:block;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(30px,4.2vw,44px);
  line-height:1;
  color:var(--cyan);
}

.page-about .about-stat-label{
  display:block;
  margin-top:6px;
  font-size:14px;
  font-weight:600;
  color:var(--paper-light);
}

.page-about .about-stat-text{
  margin:8px 0 0;
  font-size:13px;
  line-height:1.7;
  color:rgba(247,241,230,.68);
}

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

.page-about .about-team-figure img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}

/* 流程 */
.page-about .about-flow{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:12px;
}

.page-about .about-flow li{
  padding:clamp(16px,2vw,22px);
  border:1px solid var(--line-strong);
  border-radius:var(--r-md);
  background:var(--paper);
  transition:transform .2s var(--ease), border-color .2s var(--ease);
}

.page-about .about-flow li:hover{
  transform:translateY(-3px);
  border-color:var(--teal);
}

.page-about .about-flow-idx{
  display:inline-block;
  margin-bottom:8px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--teal);
}

.page-about .about-flow h3{
  margin:0 0 6px;
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
}

.page-about .about-flow p{
  margin:0;
  font-size:14px;
  line-height:1.75;
  color:var(--ink-soft);
}

.page-about .about-qa{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:clamp(16px,2.6vw,26px);
  margin-top:clamp(20px,3vw,28px);
  padding:clamp(16px,2.4vw,24px);
  border-radius:var(--r-md);
  background:var(--ink);
  color:var(--paper-light);
}

.page-about .about-qa-ring{
  flex:0 0 auto;
  position:relative;
  display:grid;
  place-items:center;
  width:96px;
  height:96px;
  border-radius:50%;
  background:conic-gradient(var(--cyan) 0 15%, rgba(247,241,230,.13) 15% 100%);
}

.page-about .about-qa-ring::after{
  content:"";
  position:absolute;
  inset:9px;
  border-radius:50%;
  background:var(--ink);
}

.page-about .about-qa-pct{
  position:relative;
  z-index:1;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:21px;
  color:var(--cyan);
}

.page-about .about-qa-text{
  flex:1 1 240px;
  min-width:0;
}

.page-about .about-qa-text h3{
  margin:0 0 6px;
  font-size:16px;
  font-weight:700;
  color:var(--paper-light);
}

.page-about .about-qa-text p{
  margin:0;
  font-size:14px;
  line-height:1.78;
  color:rgba(247,241,230,.76);
}

.page-about .about-qa-text a{
  color:var(--cyan);
}

/* 合作生态 */
.page-about .about-partners{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(18px,3vw,30px);
}

.page-about .about-partner-figure{
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--ink-soft);
  box-shadow:var(--shadow-card);
}

.page-about .about-partner-figure img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  aspect-ratio:3/2;
  object-fit:cover;
}

.page-about .about-partner-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:10px;
}

.page-about .about-partner-list li{
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--paper-light);
  transition:transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-about .about-partner-list li:hover{
  transform:translateY(-2px);
  border-color:var(--teal);
  box-shadow:var(--shadow-card);
}

.page-about .about-partner-list .tag{
  transition:transform .2s var(--ease);
}

.page-about .about-partner-list li:hover .tag{
  transform:translateX(3px);
}

.page-about .about-partner-list h3{
  margin:8px 0 5px;
  font-size:15.5px;
  font-weight:700;
  color:var(--ink);
}

.page-about .about-partner-list p{
  margin:0;
  font-size:13.5px;
  line-height:1.72;
  color:var(--ink-soft);
}

/* 服务原则 */
.page-about .about-principles{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:12px;
}

.page-about .about-principles li{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:14px;
  padding:clamp(14px,2vw,20px);
  border-left:2px solid var(--orange);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:var(--paper);
  transition:background .2s var(--ease), transform .2s var(--ease);
}

.page-about .about-principles li:hover{
  transform:translateX(3px);
  background:rgba(232,220,200,.82);
}

.page-about .about-p-idx{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--muted);
  padding-top:3px;
}

.page-about .about-principles h3{
  margin:0 0 5px;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
}

.page-about .about-principles p{
  margin:0;
  max-width:38em;
  font-size:14px;
  line-height:1.78;
  color:var(--ink-soft);
}

.page-about .about-cta{
  margin-top:clamp(24px,3.6vw,36px);
  padding:clamp(20px,3vw,30px);
  border-radius:var(--r-lg);
  background:
    radial-gradient(120% 150% at 92% 0%, rgba(15,107,92,.85) 0%, rgba(8,59,53,.92) 52%, var(--ink) 100%);
  color:var(--paper-light);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:clamp(16px,2.6vw,24px);
}

.page-about .about-cta-text{
  margin:0;
  flex:1 1 280px;
  min-width:0;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(247,241,230,.84);
}

.page-about .about-cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

/* 响应式 */
@media (min-width:560px){
  .page-about .about-stats,
  .page-about .about-partner-list,
  .page-about .about-principles{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (min-width:760px){
  .page-about .about-flow{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
}

@media (min-width:900px){
  .page-about .about-hero-split{
    grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
    align-items:end;
  }

  .page-about .about-team-layout{
    grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
    align-items:start;
    gap:clamp(26px,4vw,44px);
  }

  .page-about .about-partners{
    grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
    align-items:start;
    gap:clamp(24px,3.6vw,40px);
  }
}

@media (min-width:960px){
  .page-about .about-block-grid{
    grid-template-columns:minmax(0,168px) minmax(0,1fr);
    gap:clamp(24px,4vw,56px);
    align-items:start;
  }

  .page-about .about-mark{
    flex-direction:column;
    align-items:flex-start;
    gap:12px;
    position:sticky;
    top:108px;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-about .about-index-link,
  .page-about .about-stat,
  .page-about .about-flow li,
  .page-about .about-partner-list li,
  .page-about .about-principles li,
  .page-about .about-tl-item::before{
    transition:none;
  }

  .page-about .about-index-link:hover,
  .page-about .about-stat:hover,
  .page-about .about-flow li:hover,
  .page-about .about-partner-list li:hover,
  .page-about .about-principles li:hover{
    transform:none;
  }
}
<<<END>>>