/* 二级页面：复用首页商务蓝配色与组件 */
.sub-hero{background:linear-gradient(135deg,#003d91,#0061ff);color:#fff;padding:72px 0}
.sub-hero .crumb{font-size:.84rem;color:rgba(255,255,255,.72);margin-bottom:14px}
.sub-hero h1{font-size:clamp(2rem,4vw,3rem);line-height:1.25;margin:0 0 12px}
.sub-hero p{max-width:650px;color:rgba(255,255,255,.82);margin:0;font-size:1rem}
.sub-section{padding:72px 0;background:var(--surface)}
.sub-section.alt{background:var(--bg)}
.sub-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:30px}
.sub-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px}
.sub-card h2{font-size:1.2rem;margin:0 0 8px;color:var(--text)}
.sub-card p,.sub-card li{font-size:.88rem;color:var(--text-mid);line-height:1.8}
.sub-card ul{list-style:disc;padding-left:20px;margin:14px 0 0}
.sub-photo{width:100%;height:100%;min-height:330px;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.sub-contact{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:start}
.sub-contact-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}
.sub-contact-item{padding:20px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-lg)}
.sub-contact-item b{display:block;color:var(--text-soft);font-size:.8rem;margin-bottom:5px}
.sub-contact-item strong{font-size:.98rem;color:var(--text)}
.sub-contact-item strong a{color:var(--blue)}
.sub-qr{padding:30px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-lg);text-align:center}
.sub-qr img{width:170px;margin:0 auto 14px;border:1px solid var(--line)}
.sub-qr h2{font-size:1.05rem;margin:0 0 4px}
.sub-qr p{font-size:.84rem;color:var(--text-mid);margin:0 0 18px}
.sub-case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.sub-case{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface)}
.sub-case img{height:220px;width:100%;object-fit:cover}
.sub-case div{padding:18px}
.sub-case span{font-size:.75rem;color:var(--blue);font-weight:700}
.sub-case h2{font-size:1.05rem;margin:5px 0}
.sub-case p{font-size:.84rem;color:var(--text-mid);margin:0}
.sub-cta{margin-top:36px;padding:32px;background:var(--blue);border-radius:var(--radius-lg);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:22px}
.sub-cta h2{font-size:1.35rem;margin:0}
.sub-cta p{margin:5px 0 0;color:rgba(255,255,255,.78);font-size:.88rem}
.sub-cta .btn{background:#fff;color:var(--blue);white-space:nowrap}
@media(max-width:760px){.sub-grid,.sub-contact,.sub-case-grid{grid-template-columns:1fr}
.sub-contact-list{grid-template-columns:1fr}
.sub-cta{display:block}
.sub-cta .btn{margin-top:16px}
.sub-section{padding:54px 0}
}

.sub-service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 30px;
}

.sub-service-card {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--text);
  transition: transform var(--trans), border-color var(--trans), box-shadow var(--trans);
}

.sub-service-card:hover,
.sub-case:hover {
  transform: translateY(-4px);
  border-color: var(--blue);
  box-shadow: var(--shadow);
}

.sub-service-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.sub-service-card div {
  padding: 20px;
}

.sub-service-card span {
  color: var(--blue);
  font-size: .74rem;
  font-weight: 700;
}

.sub-service-card h2 {
  margin: 6px 0 8px;
  font-size: 1.08rem;
}

.sub-service-card p {
  min-height: 72px;
  margin: 0 0 14px;
  color: var(--text-mid);
  font-size: .85rem;
  line-height: 1.75;
}

.sub-service-card strong {
  color: var(--blue);
  font-size: .82rem;
}

.sub-case {
  display: block;
  color: var(--text);
  transition: transform var(--trans), border-color var(--trans), box-shadow var(--trans);
}

.sub-case strong {
  display: inline-block;
  margin-top: 12px;
  color: var(--blue);
  font-size: .8rem;
}

@media(max-width:900px) {
  .sub-service-grid { grid-template-columns: repeat(2, 1fr); }
}

@media(max-width:760px) {
  .sub-service-grid { grid-template-columns: 1fr; }
  .sub-service-card p { min-height: 0; }
}