/*产品中心*/
.product2 { width: 100%; background: url(../image/product.jpg)no-repeat center top; padding: 0px 0px 100px 0px;}

.product2 .ptit{margin:0 auto;width:100%;height:auto;padding:50px 0px;}
.product2 .ptit a{display:block;width:100%;height:100%;text-align:center;line-height:60px;color:#fff;font-size:2.4rem;width:240px;clear:both;height:70px;margin:0 auto;background:url(../image/tit.png) no-repeat center top;}
.product2 .ptit p{margin-top:2rem;width:100%;height:auto;clear:both;color:#fff;font-size:1.8rem;line-height:2;text-align:center;}


.product2 .pmm{margin:0 auto;width:100%;height:auto;clear:both;margin-top:6rem;}

.p1{width:23%;height:auto;float:left;position:relative;margin-left:1%;margin-right:1%;}
.p1 img{max-width:100%;height:auto;}

.p1 h3{position:absolute;left:5%;bottom:40px;color:#fff;font-size:2rem;width:90%;font-weight:normal;letter-spacing:1px;line-height:2;text-align: left;}
.p1 h4{position:absolute;left:5%;bottom:20px;color:#fff;font-size:1.2rem;width:90%;font-weight:normal;letter-spacing:1px;clear:both;text-align: left;}
.p1 .info{width:90%;position:absolute;left:5%;top:5%;height:90%;}



.card h1{margin-top:20%;color:#fff;font-size:2rem;font-weight:normal;letter-spacing:1px;text-align:left;line-height:2;}
.card h2{clear:both;color:#fff;font-size:1.2rem;font-weight:normal;letter-spacing:1px;text-align:left;clear:both;line-height:2;}
.card p{clear:both;margin-top:2rem;color:#fff;font-size:1.2rem;font-weight:normal;letter-spacing:1px;text-align:left;line-height:2;clear:both;}
.card span{clear:both;margin-top:2rem;color:#fff;font-size:1.2rem;display:block;width:30%;height:3rem;line-height:3rem;text-align:center;font-weight:normal;letter-spacing:1px;float:left;border:solid #fff 1px;}



.content {
  display: flex;
  margin: 0 auto;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  width: 100%;
}

.heading {
  width: 100%;
  margin-left: 1rem;
  font-weight: 900;
  font-size: 1.618rem;
  text-transform: uppercase;
  letter-spacing: .1ch;
  line-height: 1;
  padding-bottom: .5em;
  margin-bottom: 1rem;
  position: relative;
}
.heading:after {
  display: block;
  content: '';
  position: absolute;
  width: 60px;
  height: 4px;
  background: linear-gradient(135deg, #1a9be6, #1a57e6);
  bottom: 0;
}

.description {
  width: 100%;
  margin-top: 0;
  margin-left: 1rem;
  margin-bottom: 3rem;
}

.card {
  color: inherit;
  cursor: pointer;
  width: 92%;
   height:92%;
 position:absolute;
 top:4%;
 left:4%;
  perspective: 1000px;
  position:absolute;
  display: block;
}



@media (max-width:438px){
.p1{width:43% !important;height:auto;float:left;position:relative;margin-left:1%;margin-right:1%;margin-top:2rem;}
.p1:last-child{display:block !important;}

.p1 h3{position:absolute;left:5%;bottom:40px;color:#fff;font-size:2rem;width:90%;font-weight:normal;letter-spacing:1px;}
.p1 h4{position:absolute;left:5%;bottom:20px;color:#fff;font-size:1.4rem;width:90%;font-weight:normal;letter-spacing:1px;}
.card p{display:block;}
.card span{width:50%;margin-top:1rem !important;}
}

@media (max-width:768px){
.p1{width:43% !important;height:auto;float:left;position:relative;margin-left:1%;margin-right:1%;margin-top:2rem;}
.p1:last-child{display:block !important;}

.p1 h3{position:absolute;left:5%;bottom:40px;color:#fff;font-size:2rem;width:90%;font-weight:normal;letter-spacing:1px;}
.p1 h4{position:absolute;left:5%;bottom:20px;color:#fff;font-size:1.4rem;width:90%;font-weight:normal;letter-spacing:1px;}
.card p{display:block;}
.card span{width:50%;margin-top:1rem !important;}
}
@media (max-width:990px){
.p1{width:31.333%;height:auto;float:left;position:relative;margin-left:1%;margin-right:1%;margin-top:2rem;}
.p1:last-child{display:none;}

.p1 h3{position:absolute;left:5%;bottom:40px;color:#fff;font-size:2rem;width:90%;font-weight:normal;letter-spacing:1px;}
.p1 h4{position:absolute;left:5%;bottom:20px;color:#fff;font-size:1.4rem;width:90%;font-weight:normal;letter-spacing:1px;}
.card span{width:50%;}
.product2 .ptit{padding:20px 0px;}
}

@media (max-width:1200px){
.card p{display:none;}


.p1 h3{font-size:2rem;}
.p1 h4{font-size:1.4rem;}

.card h1{font-size:2rem;}
.card h2{font-size:1.4rem;top:20%;}

}
@media (max-width:1440px){
.card p{display:none;}


.p1 h3{font-size:2rem;}
.p1 h4{font-size:1.4rem;}

.card h1{font-size:2rem;top:10% !important;}
.card h2{font-size:1.4rem;top:40%;}
.card span{width:50%;margin-top:5rem;}
}










.front,
.back {
  display: flex;
  background-position: center;
  background-size: cover;
  text-align: center;
  justify-content: center;
  align-items: center;
  position: absolute;
  height: 100%;
  width: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  transform-style: preserve-3d;
  transition: ease-in-out 600ms;
}

.front {
  background-size: cover;
  padding: 2rem;
  font-size: 1.618rem;
  font-weight: 600;
  color: #fff;
  overflow: hidden;
  font-family: Poppins, sans-serif;
}
.front:before {
  position: absolute;
  display: block;
  content: '';
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;

  z-index: -1;
}
.card:hover .front {
  transform: rotateY(180deg);
}
.card:nth-child(even):hover .front {
  transform: rotateY(-180deg);
}

.back {
  background: #fff;
  transform: rotateY(-180deg);
  padding: 0 2em;
}
.card:hover .back {
  transform: rotateY(0deg);
}
.card:nth-child(even) .back {
  transform: rotateY(180deg);
    background-color:rgba(44,131,53,0.7);
}
.card:nth-child(even):hover .back {
  transform: rotateY(0deg);
}

.button {
  transform: translateZ(40px);
  cursor: pointer;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  font-weight: bold;
  color: #fff;
  padding: .5em 1em;
  font: inherit;
  background: linear-gradient(135deg, #1a9be6, #1a57e6);
  border: none;
  position: relative;
  transform-style: preserve-3d;
  transition: 300ms ease;
}
.button:before {
  transition: 300ms ease;
  position: absolute;
  display: block;
  content: '';
  transform: translateZ(-40px);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  height: calc(100% - 20px);
  width: calc(100% - 20px);

  left: 10px;
  top: 16px;
  box-shadow: 0 0 10px 10px rgba(26, 87, 230, 0.25);
  background-color: rgba(26, 87, 230, 0.25);
}
.button:hover {
  transform: translateZ(55px);
}
.button:hover:before {
  transform: translateZ(-55px);
}
.button:active {
  transform: translateZ(20px);
}
.button:active:before {
  transform: translateZ(-20px);
  top: 12px;
}




















@media (max-width:468px) {
.product2 .ptit {text-align:center;}

.ainfo .article {  width: 50%; float: right;  padding:25px 0px;}
.ainfo {background:none;}
.ainfo .article{width:95%;margin:0 auto;}
.ainfo .article p{color:#fff;width:95%;}
.ainfo .article .more{display:none;}
.zh{width:90%;margin:0 auto;}
.advantage{padding:0px;}
}
@media (max-width:768px) {
.product2 .ptit {text-align:center;}


}
@media (max-width:990px) {
.product2 .ptit { text-align: center;  margin: 0 auto;  float: none;}

}
@media (min-width:991px) and (max-width:1080px) {

}
@media (min-width:1081px) and (max-width:1320px) {

}
@media (min-width:1321px) and (max-width:1600px) {

}