.page-about{
  --about-line: rgba(245,182,47,.16);
  --about-card-border: 2px solid var(--color-border-strong);
  --about-node-size: 46px;
  position:relative;
  background:
    linear-gradient(var(--about-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-line) 1px, transparent 1px),
    var(--color-bg-deep);
  background-size:32px 32px;
  color:var(--color-text);
  font-family:var(--font-body);
  line-height:1.7;
  overflow-x:hidden;
}
.page-about,.page-about *{box-sizing:border-box}
.page-about img{
  max-width:100%;
  height:auto;
  display:block;
}
.page-about h1,.page-about h2,.page-about h3{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.25;
}
.page-about h1{
  font-size:clamp(2rem,6vw,3.4rem);
  color:transparent;
  background:linear-gradient(135deg,var(--color-gold-bright),var(--color-gold),var(--color-gold-dim));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  margin:0 0 14px;
}
.page-about h2{
  font-size:clamp(1.5rem,3.4vw,2.3rem);
  color:var(--color-text);
  margin:6px 0 10px;
}
.page-about h3{
  font-size:1.05rem;
  color:var(--color-gold);
  margin:0 0 8px;
}
.page-about .section-label{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-data);
  font-size:.78rem;
  letter-spacing:.14em;
  color:var(--color-cyan);
  text-transform:uppercase;
  margin-bottom:10px;
}
.page-about .section-label::before{
  content:"";
  width:26px;
  height:1px;
  background:var(--color-gold);
  display:inline-block;
}
.page-about .breadcrumb{
  margin-bottom:24px;
  color:var(--color-text-muted);
}
.page-about .content-container{
  width:min(1180px,100% - 40px);
  margin-inline:auto;
  position:relative;
}
.page-about .media-frame{
  background:var(--color-bg-card);
  border:2px solid var(--color-border-strong);
  border-radius:var(--radius);
  box-shadow:var(--shadow-panel);
}
.page-about .media-frame img{width:100%}
.page-about .media-frame figcaption{
  font-family:var(--font-data);
  font-size:.78rem;
  color:var(--color-text-muted);
  padding:10px 12px;
  border-top:1px solid var(--color-border);
  letter-spacing:.05em;
}

/* 首屏 */
.page-about .about-hero{
  padding:clamp(2.4rem,7vw,5rem) 0 3rem;
  border-bottom:2px solid var(--color-border);
  position:relative;
}
.page-about .about-hero__grid{
  display:grid;
  gap:2rem;
  align-items:center;
}
.page-about .about-hero__text{position:relative;z-index:1}
.page-about .about-hero__lead{
  font-size:1.05rem;
  color:var(--color-text-dim);
  max-width:640px;
  margin:0 0 24px;
}
.page-about .about-hero__stats{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
}
.page-about .about-stat{
  background:var(--color-bg-card);
  border:var(--about-card-border);
  border-radius:var(--radius);
  padding:14px 16px;
  box-shadow:var(--shadow-gold);
  min-width:0;
}
.page-about .about-stat .data-number{
  display:block;
  font-size:1.7rem;
  color:var(--color-gold-bright);
  line-height:1.1;
  white-space:nowrap;
}
.page-about .about-stat__label{
  display:block;
  font-size:.82rem;
  color:var(--color-text-muted);
  margin-top:4px;
  letter-spacing:.04em;
}
.page-about .about-hero__visual .media-frame{
  transform:rotate(-2deg);
  margin-left:auto;
  max-width:600px;
}

/* 品牌故事 */
.page-about .about-story{
  padding:3.2rem 0;
  border-bottom:2px solid var(--color-border);
  position:relative;
}
.page-about .about-story::after{
  content:"";
  position:absolute;
  right:8%;
  top:0;
  width:2px;
  height:100%;
  background:linear-gradient(180deg,transparent,var(--color-gold),var(--color-purple),transparent);
  opacity:.35;
  pointer-events:none;
}
.page-about .about-story__grid{
  display:grid;
  gap:2rem;
}
.page-about .about-story__intro{
  border-left:4px solid var(--color-gold);
  padding-left:18px;
}
.page-about .about-story__lead{
  color:var(--color-text);
  font-size:1.08rem;
  margin:12px 0 0;
}
.page-about .about-story__body{
  color:var(--color-text-muted);
  display:grid;
  gap:14px;
}
.page-about .about-story__body p{
  margin:0;
  max-width:72ch;
}

/* 时间线 */
.page-about .about-timeline{
  padding:3.2rem 0;
  scroll-margin-top:80px;
}
.page-about .about-timeline__head{
  margin-bottom:28px;
}
.page-about .about-timeline__head>p{
  color:var(--color-text-muted);
  max-width:640px;
  margin-top:6px;
}
.page-about .about-timeline__list{
  list-style:none;
  margin:0;
  padding:0 0 0 24px;
  border-left:2px solid rgba(245,182,47,.5);
  display:grid;
  gap:28px;
  position:relative;
}
.page-about .about-timeline__item{
  position:relative;
  padding-left:20px;
}
.page-about .about-timeline__item::before{
  content:"";
  position:absolute;
  left:-31px;
  top:6px;
  width:14px;
  height:14px;
  border-radius:50%;
  background:var(--color-bg-deep);
  border:3px solid var(--color-gold);
  box-shadow:0 0 0 4px rgba(245,182,47,.15),0 0 16px rgba(245,182,47,.35);
}
.page-about .about-timeline__item time{
  font-family:var(--font-data);
  font-size:1rem;
  color:var(--color-cyan);
  letter-spacing:.1em;
  font-weight:700;
}
.page-about .about-timeline__card{
  margin-top:6px;
}
.page-about .about-timeline__card p{
  color:var(--color-text-muted);
  font-size:.95rem;
  margin:0;
  max-width:60ch;
}

/* 团队与校正流程 */
.page-about .about-team{
  padding:3.2rem 0;
  background:var(--color-bg-panel);
  border-top:2px solid var(--color-border);
  border-bottom:2px solid var(--color-border);
}
.page-about .about-team__head{
  margin-bottom:20px;
}
.page-about .about-team__head>p{
  color:var(--color-text-muted);
  max-width:680px;
  margin-top:6px;
}
.page-about .about-team__body{
  display:grid;
  gap:2rem;
}
.page-about .about-team__structure{
  background:var(--color-bg-card);
  border:2px solid var(--color-border-strong);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow-panel);
}
.page-about .about-team__structure h3{
  color:var(--color-gold-bright);
}
.page-about .about-team__structure ul{
  list-style:none;
  margin:16px 0 0;
  padding:0;
  display:grid;
  gap:14px;
  position:relative;
}
.page-about .about-team__structure li{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:12px;
  align-items:start;
  background:var(--color-bg-panel);
  border:1px solid var(--color-border);
  border-radius:var(--radius);
  padding:12px;
  position:relative;
}
.page-about .about-team__node{
  width:var(--about-node-size);
  height:var(--about-node-size);
  border-radius:50%;
  border:2px solid var(--color-gold);
  background:var(--color-bg-deep);
  color:var(--color-cyan);
  font-family:var(--font-data);
  font-size:.6rem;
  font-weight:700;
  letter-spacing:.08em;
  display:grid;
  place-items:center;
  box-shadow:var(--shadow-gold);
  z-index:1;
}
.page-about .about-team__structure li strong{
  color:var(--color-text);
  font-size:.98rem;
  display:block;
  margin-bottom:4px;
}
.page-about .about-team__structure li p{
  color:var(--color-text-muted);
  font-size:.88rem;
  margin:0;
}
.page-about .about-team__note{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--color-border);
  color:var(--color-text-muted);
  font-size:.86rem;
}
.page-about .about-team__visual{
  display:grid;
  gap:18px;
  align-content:start;
}
.page-about .about-team__visual .media-frame{
  border-color:var(--color-border-strong);
}
.page-about .about-team__process{
  background:var(--color-bg-card);
  border:2px dashed var(--color-border-strong);
  border-radius:var(--radius);
  padding:18px 20px;
}
.page-about .about-team__process h3{
  color:var(--color-cyan);
}
.page-about .about-team__process ol{
  list-style:none;
  margin:12px 0 0;
  padding:0;
  display:grid;
  gap:8px;
}
.page-about .about-team__process li{
  display:flex;
  gap:10px;
  align-items:baseline;
  color:var(--color-text-muted);
  font-size:.92rem;
}
.page-about .about-team__process li span{
  font-family:var(--font-data);
  color:var(--color-gold);
  font-size:.8rem;
  min-width:24px;
}

/* 资质认证 */
.page-about .about-cert{
  padding:3.2rem 0;
}
.page-about .about-cert__head{
  margin-bottom:24px;
}
.page-about .about-cert__head>p{
  color:var(--color-text-muted);
  max-width:680px;
  margin-top:6px;
}
.page-about .about-cert-card{
  background:var(--color-bg-card);
  border:2px solid var(--color-border);
  border-radius:var(--radius);
  padding:22px 20px;
  box-shadow:var(--shadow-gold);
  transition:border-color .2s ease,transform .2s ease;
  display:flex;
  flex-direction:column;
  gap:8px;
  min-width:0;
}
.page-about .about-cert-card:hover{
  border-color:var(--color-gold);
  transform:translateY(-2px);
}
.page-about .about-cert-card__icon{
  font-family:var(--font-data);
  font-weight:700;
  font-size:.85rem;
  letter-spacing:.1em;
  color:var(--color-bg-deep);
  background:linear-gradient(135deg,var(--color-gold-bright),var(--color-gold));
  display:inline-block;
  padding:6px 12px;
  border-radius:var(--radius);
  align-self:flex-start;
  box-shadow:0 2px 12px rgba(245,182,47,.3);
}
.page-about .about-cert-card p{
  color:var(--color-text-muted);
  font-size:.92rem;
  margin:0;
  flex:1;
}
.page-about .about-cert-card__link{
  color:var(--color-cyan);
  font-size:.86rem;
  text-decoration:underline;
  text-underline-offset:4px;
}
.page-about .about-cert__bottom{
  margin-top:26px;
  display:grid;
  gap:22px;
  align-items:center;
  background:var(--color-bg-panel);
  border-left:4px solid var(--color-gold);
  padding:22px 20px;
  border-radius:var(--radius);
  box-shadow:var(--shadow-panel);
}
.page-about .about-cert__text h3{
  color:var(--color-gold-bright);
}
.page-about .about-cert__text p{
  color:var(--color-text-muted);
  font-size:.92rem;
  margin:6px 0;
}
.page-about .about-cert__note{
  font-family:var(--font-data);
  font-size:.8rem !important;
  color:var(--color-text-muted);
  border-top:1px solid var(--color-border);
  padding-top:12px;
  margin-top:14px !important;
  letter-spacing:.02em;
}
.page-about .about-cert__image{
  max-width:360px;
  margin:0 auto;
  width:100%;
}

/* CTA */
.page-about .about-cta{
  padding:2.8rem 0 4rem;
}
.page-about .about-cta__panel{
  background:linear-gradient(135deg,var(--color-bg-card),var(--color-bg-panel));
  border:2px solid var(--color-border-strong);
  border-radius:var(--radius);
  padding:32px 22px;
  text-align:center;
  box-shadow:var(--shadow-panel);
}
.page-about .about-cta__panel h2{
  margin-top:4px;
}
.page-about .about-cta__panel p{
  color:var(--color-text-muted);
  max-width:560px;
  margin:0 auto 20px;
}
.page-about .about-cta__actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:center;
}
.page-about .about-cta__actions .btn{
  margin:0;
}

@media (min-width:768px){
  .page-about .about-hero__grid{
    grid-template-columns:1.15fr .85fr;
    gap:3rem;
  }
  .page-about .about-hero__stats{
    grid-template-columns:repeat(4,1fr);
  }
  .page-about .about-story__grid{
    grid-template-columns:.9fr 1.1fr;
    gap:3rem;
  }
  .page-about .about-story__intro{
    position:sticky;
    top:calc(var(--header-height) + 24px);
    align-self:start;
  }
  .page-about .about-team__body{
    grid-template-columns:1fr 1fr;
    align-items:start;
  }
  .page-about .about-cert__bottom{
    grid-template-columns:1fr auto;
    gap:2.5rem;
    padding:28px 30px;
  }
  .page-about .about-cert__image{
    margin:0;
  }
}

@media (min-width:1024px){
  .page-about .about-timeline__list{
    gap:34px;
  }
  .page-about .about-team__structure{
    padding:28px;
  }
  .page-about .about-team__process{
    padding:22px 26px;
  }
  .page-about .about-cert-card{
    padding:26px 24px;
  }
  .page-about .about-cta__panel{
    padding:44px 48px;
  }
}