*{
    margin: 0;
    padding: 0;
}
.ih-item{           
    position: relative;
    width: 239px;
    height: 303px;
    } 
.ih-item .img img{
    position: relative;
    width: 239px;
    height: 303px;
    max-width: 100%;
    } 
.ih-item .info {
position: absolute;
color: aliceblue;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    -webkit-backface-visibility: hidden;/* 隐藏旋转元素的背面*/
    backface-visibility: hidden;
    background: rgba(0, 0, 0, 0.6);   /*后面这个0.6是指的背景的透明度*/
    opacity: 0;
    /* -webkit-transition: all 0.35s ease-in-out;   
    -moz-transition: all 0.35s ease-in-out;
    transition: all 0.35s ease-in-out; */
}
.ih-item a:hover .info {
    opacity: 1;    /*有opacity有0变成1*/            
}
.zt01{
    margin-top: 100px;
}
.zz01{
    display: flex;
    justify-content: center;
}
.footer{
    width: 1920px;
    height: 128px;
    background: #1C1F21;

}
.foot1{
    display: flex;
    justify-content: center;
    font-size: 17px;
    font-family: PingFang SC;
    font-weight: 400;
    color: #FFFFFF;
}
.foot1>a{
    display: block;
    margin-left: 25px;
    margin-top: 39px;
}
.foot2{
    display: flex;
    justify-content: center;
}
.foot2>a{
    display: block;
    margin-top: 5px;
    width: 395px;
    height: 14px;
    font-size: 14px;
    font-family: PingFang SC;
    font-weight: 400;
    color: #949699;
    margin-left: 68px;
}
.zt001{
    width: 700px;
    height: 45px;
    font-size: 46px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    color: #34363B;
    margin: 0 auto;
    padding-top:10px;

}
.zt002{
    width: 600px;
    height: 18px;
    font-size: 18px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #939CAC;
    margin: 0 auto;
    padding-top: 34px;
    margin-bottom: 64px;
}
.zhuti{
    width: 1920px;
}
.zhuti002{
    width: 1920px;
    height: 754px;
    background: linear-gradient(180deg, #FAFCFF 0%, #FFFFFF 100%);
}
.zhuti002_1{
    width: 800px;
    height: 44px;
    font-size: 46px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #34363B;
    margin: 0 auto;
    margin-top: 79px;
}
.zhuti002_2{
   height: 167px;
   display: flex;
   justify-content: center;
   margin-top: 67px;
}
.zhuti002_3{
    width: 1380px;
    height: 254px;
    background: linear-gradient(180deg, #F5F6F9, #FFFFFF);
    border-radius: 3px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 50px;
    margin-left: 277px;
 }
 .zhuti002_4{
    margin-left: 1521px;
 }