.dd-case-main{
    width: 13.50rem;
    margin: 0 auto;
}
.dd-page-container{
    width: 100%;
    /*padding-top: 1.72rem;*/
    padding-top: 1.00rem;
}
.dd-case-item{
    width: 3.70rem;
    height: 3.90rem;
    float: left;
    margin-right: 0.44rem;
    box-shadow:0px 4px 4px #eeeeee;
    background: #ffffff;
    position: relative;
    margin-bottom: 0.89rem;
}
.dd-case-item:nth-child(3n){
    margin-right: 0;
}
.dd-case-item-tidy-content{
    width: 100%;
    height: 100%;
    position: relative;
}
.dd-case-item img{
    width: 3.70rem;
    height: 3.90rem;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}
.dd-case-item-tidy-title-box{
    width: 100%;
    height: 0.86rem;
    position: absolute;
    bottom: 0;
    left: 0;
    overflow: hidden;
}
.dd-case-item-tidy-title-bg{
    width: 100%;
    height: 0.86rem;
    background-color: #ffffff;
    opacity: 1;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}
.dd-case-item-tidy-title{
    font-size: 0.32rem;
    color: #000000;
    width: 100%;
    height: 0.86rem;
    line-height: 0.86rem;
    text-align: center;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
}
.dd-case-item-full-title-box{
    width: 4.20rem;
    height: 4.40rem;
    position: absolute;
    top: 0;
    left: 0;
    display: none;
}
.dd-case-item-full-title-bg{
    width: 4.20rem;
    height: 4.40rem;
    background-color: #3288c5;
    -moz-opacity: .6;
    -webkit-opacity: .6;
    opacity: .6;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}
.dd-case-item-full-title-content{
    width: 4.20rem;
    height: 4.40rem;
    padding: 0.30rem 0.20rem ;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
}
.dd-case-item-full-title-content2{
    width: 100%;
    height: 100%;
    border: 2px solid #ffffff;
    position: relative;
    padding-top: 1.45rem;
}

.dd-case-item:hover .dd-case-item-tidy-title-box{
    display: none;
}
.dd-case-item:hover .dd-case-item-full-title-box{
    display: block;
}

.dd-cif-title-cn{
    font-size: 0.32rem;
    color: #ffffff;
    height: 0.34rem;
    line-height: 0.34rem;
    text-align: center;
}
.dd-cif-btn{
    font-size: 0.18rem;
    color: #ffffff;
    width: 1.36rem;
    height: 0.58rem;
    line-height: 0.58rem;
    border: 2px solid #ffffff;
    text-align: center;
    position: absolute;
    bottom: 0.87rem;
    left: 50%;
    margin-left: -0.68rem;
    cursor: pointer;
}
.dd-cif-btn a{
    color: #ffffff;
}

@media screen and (max-width:640px) {
    .dd-case-main{
        width: 6.90rem;
        margin: 0 auto;
    }
    .dd-page-container{
        width: 100%;
        /*padding-top: 1.72rem;*/
        padding-top: 1.00rem;
    }
    .dd-case-item{
        width: 4.20rem;
        height: 4.40rem;
        float: left;
        margin-right: 0.44rem;
        box-shadow:0px 4px 4px #eeeeee;
        background: #ffffff;
        position: relative;
        margin-bottom: 0.89rem;
        margin-left: 1.35rem;
    }
    .dd-case-item:nth-child(3n){
        margin-right: 0;
    }
    .dd-case-item-tidy-content{
        width: 100%;
        height: 100%;
        position: relative;
    }
    .dd-case-item img{
        width: 4.20rem;
        height: 4.40rem;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
    }
    .dd-case-item-tidy-title-box{
        width: 100%;
        height: 0.86rem;
        position: absolute;
        bottom: 0;
        left: 0;
    }
    .dd-case-item-tidy-title-bg{
        width: 100%;
        height: 0.86rem;
        background-color: #ffffff;
        opacity: 1;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
    }
    .dd-case-item-tidy-title{
        font-size: 0.32rem;
        color: #000000;
        width: 100%;
        height: 0.86rem;
        line-height: 0.86rem;
        text-align: center;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 2;
    }
    .dd-case-item-full-title-box{
        width: 4.20rem;
        height: 4.40rem;
        position: absolute;
        top: 0;
        left: 0;
        display: none;
    }
    .dd-case-item-full-title-bg{
        width: 4.20rem;
        height: 4.40rem;
        background-color: #3288c5;
        -moz-opacity: .6;
        -webkit-opacity: .6;
        opacity: .6;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
    }
    .dd-case-item-full-title-content{
        width: 4.20rem;
        height: 4.40rem;
        padding: 0.30rem 0.20rem ;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 2;
    }
    .dd-case-item-full-title-content2{
        width: 100%;
        height: 100%;
        border: 2px solid #ffffff;
        position: relative;
        padding-top: 1.45rem;
    }

    .dd-case-item:hover .dd-case-item-tidy-title-box{
        display: none;
    }
    .dd-case-item:hover .dd-case-item-full-title-box{
        display: block;
    }

    .dd-cif-title-cn{
        font-size: 0.32rem;
        color: #ffffff;
        height: 0.34rem;
        line-height: 0.34rem;
        text-align: center;
    }
    .dd-cif-btn{
        font-size: 0.18rem;
        color: #ffffff;
        width: 1.36rem;
        height: 0.58rem;
        line-height: 0.58rem;
        border: 2px solid #ffffff;
        text-align: center;
        position: absolute;
        bottom: 0.87rem;
        left: 50%;
        margin-left: -0.68rem;
        cursor: pointer;
    }
    .dd-cif-btn a{
        color: #ffffff;
    }
}