
.nav ul li:nth-child(5) a{
    color:#288ece;}
    .nav ul li:nth-child(5) {
        border-bottom: 1px solid #288ece;
    }
.nav ul li a {
    color: #c5c6c5;
    font-size: 16px;

}
/* .nav ul li:hover a {
    color:#288ece;
} */
.nav ul li {
    height:38px ;
}
/* .nav ul li:hover{

    border-bottom: 1px solid #288ece;

} */
.nav ul li:nth-last-child(1){
   
    font-weight: 700;
    margin-right: 0;
}
.nav ul li:nth-last-child(1) a {
    color: #288ece;
}
.product-d{
    padding-top: 114px;
   margin: auto;
    width: 1200px;
    height: 540px;

    /* background-color: teal; */

}
.product-d>p{
    font-size: 38px;
    text-align: center;
    position: relative;
}
.product-d>p::after{
    display: block;
    content: "";
    width: 32px;
    height: 2px;
    position: absolute;
    left: 50%;
    top: 65px;
    margin-left: -16px;
    /* color: tomato; */
    border-bottom: 2px solid #288ece;
}

.product-d-left {
    float: left;
    height: 318px;
    width: 678px;
    margin-top: 70px;
    border: 1px solid #e6e6e6;
    /* background-color: #288ece; */
    margin-right: 50px;
}

.product-d-left>img {
    width: 100%;
    height: 100%;
}
.product-d-right {
    width: 460px; 
}
.product-d-right>ul {
    margin-top: 70px;
   }
   .product-d-right>ul>li:nth-child(1){
       margin-top: 70px;
   }
.product-d-right>ul>li{
    font-size: 14px;
    line-height: 54px;
    height: 54px;
    width: 460px; 
    float: left;
    border-bottom: 1px dashed #d9d9d9;
    color: #999;
}
.product-d-right>ul>li>span{
    color: #6b6b6b;
}
.details{
    margin: 0 auto;
    width: 1200px;
   
    /* background-color: #288ece; */
   
}
.details>p{
    height: 40px;
    font-size: 20px;


}
.details-one{
    padding:40px 50px 10px 50px;
    background-color: #f5f5f5;
  
    /* background-color: aqua; */
 }
 .details-one>p {
     text-align: center;
     height: 50px;
     line-height: 50px;
     background-color: #288ece;
     color: #fff;
     width: 1100px;
  
 }
 .details-one>ul {
 
     background-color: #fff;
 }
 .details-one>ul>li{
     height:49px;
     border-bottom: 1px solid #e6e6e6;
     border-right: 1px solid #e6e6e6;
     border-left: 1px solid #e6e6e6;
 }
 .details-one>ul>li a {
 
     padding-left: 50px;
     display: inline-block;
     width: 348px;
     height: 49px;
     /* text-align: center; */
     line-height: 49px;
     border-right: 1px solid #e6e6e6;
     color: #5d5d5d;
  
 }
 .details-one>ul{
     margin-bottom: 30px;
 }

 .details-one>ul>li span {
     padding-left: 50px;
     color: #5d5d5d;
     
 }
 .details-one>ul:nth-child(1){
     margin-bottom: 30px;
 }
 .details-one .details-one-content:nth-child(2){
     margin-top: 30px;
 }

 .return-one {
    height: 60px;
    width: 1200px;
    color: #288ece;
    margin: 0 auto;
    padding-top: 60px;
 }
 .return-button {
     float: right;
    height: 60px;

    text-align: center;
    line-height: 50px;
  
 }
 .return-button span {
     color: #9a9a9a;
     font-size: 16px;

 }
 .return-button .btn{
     
     float: right;
     height: 50px;
     width: 50px;
     background-color: #288ece;
     margin-left: 20px;
     font-size: 20px;
     color: #fff;

 }
 .carousel {
     width: 1200px;
     margin: 0 auto;
     padding-top: 40px;
     height: 290px;
 }
 .carousel>p {
     font-size: 20px;
     font-weight: 400;
 }
 .carousel-main {
     position: relative;
     margin-top: 20px;
     width: 1200px;
     height: 190px;
     overflow: hidden;
 }
 .carousel-main ul {
     position: absolute;
   
     width: 3000px;
    
 }
 .carousel-main li {
    float: left;
     width: 284px;
     height: 170px;
     margin-left: 20px;
 }
 .carousel-main li:nth-child(1){
     margin-left: 0;
 }
 .carousel-main li img {
    border: 1px solid #e6e6e6;
 }
 .carousel-main li>p {
     margin-top: 20px;
     font-size: 14px;
     text-align: center;
     color: #bfbfbf;
     
 }
 .c-btn-left,.c-btn-right {
     position: absolute;
     width: 20px;
     height: 40px;
     
     background-color: #b2b2b2;
     line-height: 40px;
     top: 50%;
     margin-top: -45px;
     text-align: center;
     
 }
 .c-btn-left {
     left: 0;
  
 }
 .c-btn-right{
    right: 3px;
 }