/* 产品与解决方案 - 满屏下拉菜单 */
@media only screen and (min-width:1025px){
.page-nav .item-mega{position:relative}
.page-nav .item-mega .page-mega{
  position:fixed;
  left:0;
  right:0;
  top:80px;
  width:100%;
  margin:0;
  min-height:520px;
  max-height:600px;
  z-index:998;
  background:linear-gradient(180deg, #f4f9fc 0%, #fff 42%, #fff 100%);
  border-top:3px solid #1E7BC1;
  box-shadow:0 16px 48px rgba(10,60,120,.14);
  padding:0;
  overflow-x:hidden;
  overflow-y:auto;
  opacity:0;
  visibility:hidden;
  transform:scaleY(0);
  transform-origin:center top;
  transition:transform .3s, opacity .3s, visibility .3s;
  pointer-events:none;
}
.page-nav .item-mega.is-open .page-mega,
.page-nav .item-mega:hover .page-mega{
  opacity:1;
  visibility:visible;
  transform:scaleY(1) !important;
  pointer-events:auto;
}
.mega-inner{
  display:flex;
  gap:36px;
  align-items:stretch;
  padding:44px 0 40px;
  min-height:520px;
  box-sizing:border-box;
  margin-left:auto;
  margin-right:auto;
  max-width:1430px;
}
.mega-intro{
  flex:0 0 240px;
  display:flex;
  flex-direction:column;
  padding-top:8px;
}
.mega-label{
  font-size:13px;
  letter-spacing:2px;
  color:#1E7BC1;
  font-weight:600;
  margin:0 0 12px;
  font-family:Bahnschrift,Arial,Helvetica,sans-serif;
}
.mega-title{
  font-size:26px;
  font-weight:700;
  color:#1a2b3c;
  line-height:1.35;
  margin:0 0 16px;
}
.mega-desc{
  font-size:14px;
  line-height:1.85;
  color:#5a6b7d;
  margin:0 0 18px;
}
.mega-tags{
  list-style:none;
  margin:0 0 20px;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.mega-tags li{
  padding:4px 12px;
  border-radius:20px;
  border:1px solid #d4e8f5;
  background:#fff;
  font-size:12px;
  color:#1E7BC1;
}
.mega-all{
  display:inline-flex;
  align-items:center;
  gap:8px;
  align-self:flex-start;
  padding:10px 22px;
  border-radius:30px;
  background:#1E7BC1;
  color:#fff !important;
  font-size:14px;
  font-weight:500;
  margin-top:auto;
  transition:background .3s, transform .3s, box-shadow .3s;
}
.mega-all .iconfont{ font-size:12px; transition:transform .3s;}
.mega-all:hover{
  background:#0066cc;
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(30,123,193,.35);
}
.mega-all:hover .iconfont{ transform:translateX(4px);}
.mega-products{
  flex:1;
  min-width:0;
  display:grid;
  grid-template-columns:repeat(5, minmax(0, 1fr));
  gap:16px;
  align-content:start;
}
.mega-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border-radius:12px;
  overflow:hidden;
  border:1px solid #e8eef4;
  transition:transform .3s, box-shadow .3s, border-color .3s;
  text-decoration:none;
  height:100%;
}
.mega-card:hover{
  transform:translateY(-6px);
  border-color:#1E7BC1;
  box-shadow:0 12px 32px rgba(30,123,193,.15);
}
.mega-card-img{
  height:140px;
  background-size:cover;
  background-position:center;
  background-color:#f0f6fa;
  transition:transform .5s ease;
}
.mega-card:hover .mega-card-img{ transform:scale(1.05);}
.mega-card-body{
  padding:16px 14px 18px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.mega-card-tit{
  font-size:16px;
  font-weight:600;
  color:#1a2b3c;
  margin:0 0 12px;
  line-height:1.4;
}
.mega-card-more{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:12px;
  color:#1E7BC1;
  font-weight:500;
  margin-top:auto;
}
.mega-card-more .iconfont{ font-size:11px; transition:transform .3s;}
.mega-card:hover .mega-card-more .iconfont{ transform:translateX(3px);}
.mega-aside{
  flex:0 0 220px;
}
.mega-aside-box{
  height:100%;
  padding:28px 22px;
  border-radius:12px;
  background:linear-gradient(160deg, #0a3058 0%, #1a6fad 55%, #1E7BC1 100%);
  color:#fff;
  display:flex;
  flex-direction:column;
  position:relative;
  overflow:hidden;
}
.mega-aside-box:before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(ellipse 80% 60% at 100% 0%, rgba(255,255,255,.12) 0%, transparent 60%);
  pointer-events:none;
}
.mega-aside-tit{
  font-size:18px;
  font-weight:600;
  margin:0 0 20px;
  position:relative;
  line-height:1.4;
}
.mega-aside-list{
  list-style:none;
  margin:0;
  padding:0;
  flex:1;
  position:relative;
}
.mega-aside-list li{
  display:flex;
  align-items:flex-start;
  gap:8px;
  font-size:13px;
  line-height:1.65;
  color:rgba(255,255,255,.88);
  margin-bottom:14px;
}
.mega-aside-list li i{
  flex-shrink:0;
  font-size:14px;
  color:#8fd4ff;
  margin-top:3px;
}
.mega-aside-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  margin-top:auto;
  padding:10px 16px;
  border-radius:30px;
  background:#fff;
  color:#1E7BC1 !important;
  font-size:13px;
  font-weight:600;
  transition:transform .3s, box-shadow .3s;
  position:relative;
}
.mega-aside-btn .iconfont{ font-size:11px; transition:transform .3s;}
.mega-aside-btn:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(0,0,0,.2);
}
.mega-aside-btn:hover .iconfont{ transform:translateX(3px);}
}

@media only screen and (min-width:1025px) and (max-width:1440px){
.mega-inner{ gap:24px; padding:36px 0 32px; max-width:1300px;}
.mega-intro{ flex:0 0 200px;}
.mega-title{ font-size:22px;}
.mega-products{ grid-template-columns:repeat(3, minmax(0, 1fr)); gap:14px;}
.mega-aside{ flex:0 0 200px;}
.mega-card-img{ height:120px;}
}

@media only screen and (min-width:1025px) and (max-width:1280px){
.mega-inner{
  flex-wrap:wrap;
  min-height:auto;
  max-height:600px;
  overflow-y:auto;
}
.mega-intro{ flex:1 1 100%; flex-direction:row; flex-wrap:wrap; align-items:center; gap:12px 24px; padding-top:0;}
.mega-desc{ flex:1 1 100%; margin-bottom:12px;}
.mega-tags{ margin-top:0; width:100%;}
.mega-products{ flex:1 1 100%; grid-template-columns:repeat(5, minmax(0, 1fr));}
.mega-aside{ flex:1 1 100%;}
.mega-aside-box{ flex-direction:row; flex-wrap:wrap; align-items:center; gap:16px; padding:20px 24px;}
.mega-aside-tit{ width:100%; margin-bottom:8px;}
.mega-aside-list{ display:flex; flex-wrap:wrap; gap:8px 24px; flex:none;}
.mega-aside-list li{ margin-bottom:0;}
.mega-aside-btn{ margin-top:0; margin-left:auto;}
}