.promain .main {
    width: 100%;
    display: flex;
    justify-content: space-between;
}
.promain .left {
    padding-top: 60px;
    padding-bottom: 100px;
    overflow-y: auto;
    width: 361px;
    border-right: 1px solid #e5e5e5;
    padding-right: 60px;
}
.promain .left .leftmenu {

    border-bottom: 1px solid #e5e5e5;
}
.promain .left .leftmenu .menutop {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    line-height: 70px;
    font-size: 20px;
    color: #000000;
}
.promain .left .leftmenu .menutop .ext{
    cursor: pointer;
    font-size: 14px;
    color: #23438c;
    padding: 0 15px;
}
.promain .left .leftmenu.active .menutop{
    color: #23438c;
}
.promain .left .leftmenu .downmenu {
    height: auto;
    padding-bottom: 30px;
}
.promain .left .leftmenu .downmenu a {
    position: relative;
    display: flex;
    align-items: center;
    height: 45px;
    padding-left: 30px;
    border-left: 1px solid #e6e6e6;
}

.promain .left .leftmenu .downmenu a::before {
    position: absolute;
    content: '';
    left: 0;
    width: 10px;
    height: 1px;
    background-color: #e6e6e6;
}
.promain .left .leftmenu .downmenu a:hover {
    color: #23438c;
}

.promain .left .leftmenu .downmenu a.active {
    color: #23438c;
}

.promain .right {
    margin-left: 60px;
    padding-top: 60px;
    padding-bottom: 100px;
    flex: 1;
}
.promain .right .prolist {
    display: flex;
    flex-wrap: wrap;
}   
.promain .right .proitem {
    width: calc((100% - 60px)/3);
    margin-right: 30px;
    height: 326px;
    background-color: #f8f8f8;
    overflow: hidden;
    margin-bottom: 30px;
}
.promain .right .proitem:nth-child(3n) {
    margin-right: 0;
}

.promain .right .proitem .pic {
    width: 100%;
    height: calc(100% - 60px);
}
.promain .right .proitem .pic img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.promain .right .proitem  h3 {
    height: 60px;
    line-height: 60px;
    text-align: center;
    font-size: 20px;
    color: #000000;
}  

.promain .right .proitem:hover h3 {
    background-color: #23438c;
    color: #fff;
}
/* 产品详情 */
.prodetailtop {
    padding-top: 50px;
    padding-bottom: 60px;
    display: flex;
    justify-content: space-between;
}
.prodetailtop .pic {
    width: 700px;
    height: 500px;
    padding: 60px;
    background-color: #f7f7f7;
}
.prodetailtop .pic img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.prodetailtop .cont {
    flex: 1;
    margin-left: 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.prodetailtop .cont h3 {
    padding-bottom: 40px;
    font-size: 40px;
    font-weight: bold;
    color: #000;
    border-bottom: 1px solid #e5e5e5;
}
.prodetailtop .cont p {
    font-size: 18px;
    line-height: 38px;
    color: #444;
    padding: 30px 0;
}
.prodetailtop .cont a {
    width: 160px;
    height: 54px;
    background-color: #23438c;
    line-height: 54px;
    color: #fff;
    text-align: center;
    font-size: 16px;
}
.prodetailnav {
    display: flex;
    width: 100%;
    background-color: #f7f7f7;
    padding: 0 2.6%;
}
.prodetailnav a {
    width: 224px;
    height: 85px;
    line-height: 85px;
    font-size: 22px;
    color: #000;
    text-align: center;
}   
.prodetailnav a.active {
    background-color: #23438c;
    color: #fff;
}
.prodetailcont {
    display: none;
    background-color: #fff;
    padding: 40px 2.6%;
}


.recomdtop {
    padding: 0 2.5%;
    width: 100%;
    border-bottom: 1px solid #f7f7f7;
}
.recomdtop span {
    display: inline-block;
    position: relative;
    padding-bottom: 30px;
    font-size: 40px;
    font-weight: bold;
}
.recomdtop span::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;    
    height: 3px;
    background-color: #23438c;
}
.recommain {
    padding-top: 40px;
    padding-bottom: 100px;
}
.recommain .w {
    display: flex;
    flex-wrap: wrap;
}
.recomitem {
    width: calc((100% - 120px)/4);
    height: 330px;
    margin-right: 40px;
    background-color: #f8f8f8;
}
.recomitem:nth-child(4n){
    margin-right: 0;
}
.recomitem .pic {
    padding: 40px;
    height: calc(100% - 60px);
}
.recomitem .pic img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.recomitem h5 {
    height: 60px;
    line-height: 60px;
    text-align: center;
    font-size: 20px;
    color: #000;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.recomitem:hover h5 {
    background-color: #23438c;
    color: #fff;
}

.prophonenav {
    display: none;
    padding: 0 15px;
    height: 60px;
    overflow: hidden;
    background-color: #f7f7f7;
}
.prophonenav .promainnav{
    width: 100%;
    overflow-x: auto;
    white-space: nowrap;
}
.prophonenav a {
    position: relative;
    display: inline-block;
    padding: 0 15px;
    height: 60px;
    line-height: 60px;
    font-size: 16px;
}
.prophonenav a.active::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    height: 3px;
    background-color: #23438c;
    width: 100%;
}



@media only screen and (max-width: 600px) {
 
    .promain .left {
        display: none;
    }
    .promain .right {
        width: 100%;
        margin-left: 0;
        padding-top: 30px;
        padding-bottom: 50px;
    }
    .promain .right .proitem {
        width: calc((100% - 15px) / 2);
        height: 164px;
        margin-right: 15px;
        margin-bottom: 15px;
    }
    .promain .right .proitem:nth-child(3n) {
        margin-right: 15px;
    }
    .promain .right .proitem:nth-child(2n) {
        margin-right: 0;
    }
    .promain .right .proitem .pic {
        height: calc(100% - 34px);
    }
    .promain .right .proitem h3 {
        height: 34px;
        line-height: 34px;
        font-size: 16px;
    }
    .prodetailtop {
        flex-direction: column;
        padding-top: 30px;
        padding-bottom: 30px;
    }
    .prodetailtop .pic {
        width: 100%;
        height: 350px;
    }
    .prodetailtop .cont {
        margin-top: 30px;
        margin-left: 0; 
    }
    .prodetailtop .cont h3 {
        font-size: 20px;
        padding-bottom: 20px;
    }
    .prodetailtop .cont p {
        font-size: 14px;
    }
    .prodetailnav {
        padding: 0;
    }
    .prodetailnav a {
        height: 60px;
        line-height: 60px;
        font-size: 18px;
    }
    .prodetailcont {
        padding: 20px 15px;
    }

    .recomdtop span {
        font-size: 25px;
        padding-bottom: 15px;
    }

    .recommain {
        padding-top: 40px;
        padding-bottom: 50px;
    }
    .recomitem {
        width: calc((100% - 15px)/2);
        height: 300px;
        margin-bottom: 15px;
        margin-right: 15px;
    }
    .recomitem:nth-child(4n){
        margin-right: 15px;
    }
    .recomitem:nth-child(2n){
        margin-right: 0;
    }
    .recomitem .pic {
        padding: 15px;
    }

    .prophonenav {
        display: block;
    }
    

}
@media only screen and (min-width: 601px) and (max-width: 1199px) {

    .promain .left {
        display: none;
    }
    .promain .right {
        width: 100%;
        margin-left: 0;
        padding-top: 30px;
        padding-bottom: 50px;
    }
    .promain .right .proitem {
        width: calc((100% - 15px) / 2);
        height: 164px;
        margin-right:  15px;
        margin-bottom: 15px;
    }
    .promain .right .proitem:nth-child(3n) {
        margin-right: 15px;
    }
    .promain .right .proitem:nth-child(2n) {
        margin-right: 0;
    }
    .promain .right .proitem .pic {
        height: calc(100% - 34px);
    }
    .promain .right .proitem h3 {
        height: 34px;
        line-height: 34px;
        font-size: 16px;
    }

    .prodetailtop {
        flex-direction: column;
        padding-top: 30px;
        padding-bottom: 30px;
    }
    .prodetailtop .pic {
        width: 100%;
        height: 350px;
    }
    .prodetailtop .cont {
        margin-top: 30px;
        margin-left: 0; 
    }
    .prodetailtop .cont h3 {
        font-size: 20px;
        padding-bottom: 20px;
    }
    .prodetailtop .cont p {
        font-size: 14px;
    }
    .prodetailnav {
        padding: 0;
    }
    .prodetailnav a {
        height: 60px;
        line-height: 60px;
        font-size: 18px;
    }

    .prodetailcont {
        padding: 20px 15px;
    }


    .recommain {
        padding-top: 40px;
        padding-bottom: 50px;
    }
    .recomitem {
        width: calc((100% - 15px)/2);
        height: 300px;
        margin-bottom: 15px;
        margin-right: 15px;
    }
    .recomitem:nth-child(4n){
        margin-right: 15px;
    }
    .recomitem:nth-child(2n){
        margin-right: 0;
    }
    .recomitem .pic {
        padding: 15px;
    }

    .prophonenav {
        display: block;
    }

}