.banner {
  height:270px;
}
.nav-tab-panel {
  padding:100px 0 140px 0;
}
.pd-list {
  margin-top:60px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.pd-list li {
  width:384px;
  height:200px;
  margin-bottom:24px;
}
.pd-list li dl {
  width:100%;
  height:100%;
  padding:40px;
  position: relative;
  background-color: #fff;
  transition: all .3s ease;
  box-shadow: 0 0 6px rgba(6,11,255, .1);
}
.pd-list li dl dt {
  position: relative;
  top:0;
  width:90px;
  float:left;
  transition: all .3s ease;
}

.pd-list dl dd {
  margin-left:90px;
  transition: all .3s ease;
}
.pd-list dl dd h4 {
  margin:0;
  font-size:18px;
  line-height: 30px;
}
.pd-list dl dd p {
  margin:0;
  color:#333;
  transition: all .3s ease;
}
.pd-list dl dd p.desc {
  font-size:14px;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
}
.pd-list dl dd p.desc-detail {
  font-size:12px;
  display: none;
}
.pd-list li:hover dl dd p.desc {
  display: none;
}
.pd-list li:hover dl dd p.desc-detail {
  display: block;
}
.pd-list li:hover dl {
  padding:20px;
}
.pd-list li:hover dl dt {
  position: absolute;
  top:-24px;
  /* width:0; */
  /* height:4px; */
  /* background-color: #2c68ff; */
  border-bottom:4px solid #2c68ff;
}
.pd-list li:hover dl dt img {
  height:0;
}
.pd-list li:hover dl dd {
  margin-left:0;
  position: relative;
}


.pd-title {
  font-size:32px;
  text-align: center;
  margin:0;
  line-height: 42px;
}
.pd-desc {
  font-size:16px;
  color:#333;
  text-align: center;
}
.svg-border {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.svg-border path {
  stroke-width: 2px;
  fill: transparent;
  stroke: #2c68ff;
  stroke-dashoffset: 0;
  stroke-dasharray: 0,384,0,200,0,384,0,200;
  transition: all .3s ease;
}
.pd-list li:hover .svg-border path {
  stroke-dasharray: 384,0,200,0,384,0,200,0
}

.mh-box {
  min-height:800px;
  background:#eff0f3 url(../imgs/product/mh-box-bg.png) center 60px no-repeat;
}