#cases .section{
    padding-top: 1px;
}
#cases .ul1 li{
    float: left;
    text-align: center;
}
#cases .ul1 li:first-child{
    border: 1px solid #cccccc;
}
#cases .ul2{
    margin: auto;
}
#cases .ul2 li{
    float: left;
    background: url("../img/99.png");
    background-size: 100% 100%;
    position: relative;
    text-align: center;
}
#cases .ul2 li:nth-child(4){
    margin-right: 0;
}
#cases .ul2 li:nth-child(8){
    margin-right: 0;
}
#cases .ul2 li .img1{
    margin: auto;
    display: block;
}
#cases .ul2 li .img2{
    position: absolute;
    left: 0;
    right: 0;
    width: 40px;
    margin: auto;
}
#cases .ul2 li .p1{
    color: #aaaaaa;
}
#cases .ul2 li .p2{
    font-size: 12px;
    color: #cccccc;
    word-break: break-all;
}
#cases .footer{
    width: 100%;
    margin: 0;
    background: black;
    height: 150px;
    padding-top: 1px;
}
#cases .footer .footer_middle{
    position: relative;
}

@media (min-width: 768px) {
    #cases .head{
        height: 600px;
        background: url('../img/224.png');
        background-size: 100% 600px
    }
    #cases .ul1{
        width: 1000px;
        margin: 50px auto 40px;
        font-size: 14px;
        color: #aaaaaa;
    }
    #cases .ul1 li:first-child{
        width: 80px;
        margin-right: 20px;
        border-radius: 15px;
    }
    #cases .ul1 li{
        width: 60px;
        height: 30px;
        line-height: 30px;
        cursor: pointer;
    }
    #cases .ul1 li:hover{
        color: #fe422a;
    }
    #cases .ul1 li:first-child{
        color: #aaaaaa;
    }
    #cases .ul2{
        width: 1000px;
    }
    #cases .ul2 li{
        width: 240px;
        margin-right: 13px;
        height: 300px;
        margin-bottom: 50px;
    }
    #cases .ul2 li .img1{
        width: 96%;
        height: 130px;
    }
    #cases .ul2 li .img2{
        top:45px;
        width: 40px;
        height: 40px;
        overflow: hidden;
        border-radius: 6px;
    }
    #cases .ul2 li .img2 img{
        width: 100%;
    }
    #cases .ul2 li .p1{
        margin-top: 30px;
        font-size: 16px;
    }
    #cases .ul2 li .p2{
        margin: 20px auto 0;
        width: 82%;
    }
    #cases .footer .footer_middle{
        width: 1000px;
        margin: 40px auto;
    }
    #cases .li_head{
        width: 100%;
        height: 130px;
        position: relative;
    }
    #cases .li_head .back{
        width: 97%;
        height: 100%;
        position: absolute;
        left: 0;
        top:0;
        right: 0;
        margin: auto;
        background: black;
        opacity: .4;
    }
    #cases .li_head .code_img{
        position: absolute;
        width: 80px;
        height: 80px;
        top:25px;
        left: 0;
        right: 0;
        margin: auto;
        opacity: 0;
        z-index: 999;
    }
    #cases .ul2 .li_head:hover .code_img{
        opacity: 1;
    }
}

@media (max-width: 768px) {
    #cases .head{
        height: 250px;
        background: url('../img/98.png');
        background-size: 100% 250px
    }
    #cases .head .head_words{
        top:120px;
    }
    #cases .ul1{
        width: 96%;
        margin: 30px auto 20px;
        font-size: 12px;
        color: #aaaaaa;
    }
    #cases .ul1 li:first-child{
        width: 60px;
        margin-right: 10px;
        line-height: 24px;
        height: 24px;
        border-radius: 12px;
    }
    #cases .ul1 li{
        width: 30px;
        height: 24px;
        line-height: 24px;
    }
    #cases .ul2{
        width: 96%;
    }
    #cases .ul2 li{
        width: 48%;
        margin: 0 1% 30px;
        height: 200px;
    }
    #cases .ul2 li .img1{
        width: 100%;
    }
    #cases .ul2 li .img2{
        top:30px;
    }
    #cases .ul2 li .p1{
        margin-top: 12px;
        font-size: 13px;
    }
    #cases .ul2 li .p2{
        margin: 8px auto 0;
        width: 100%;
        transform: scale(.9);
    }
    #cases .footer .footer_middle{
        width: 90%;
        margin: 30px auto;
    }
    #cases .footer .footer_middle .p2{
        width: auto;
    }
}