.bigtits{
    display: block!important;
    font-size: 30px!important;
    color: #00adec;
    text-align: center!important;
    line-height: 88px!important;
    margin-bottom: 34px;
    font-weight: bold;
}
.cases{
    width: 100%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    
}
.cases>li{
    display: block;
    width: 308px;
    height: 200px;
    margin-bottom: 20px;
    border-radius: 3px;
    overflow: hidden;
}
.cases>li>a{
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
}

.cases1{
    position: relative;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.2);
}
.cases1>img{
    display: block;
    width: 100%;
    height: 100%;
}
.cases1>span{
    position: absolute;
    display: inline-block;
    width: 250px;
    left: 21px;
    top: 50%;
    transform: translate(0, -50%);
    font-size: 17px;
    color: #fff;
    font-weight: bold;
    line-height: 31px;
}
.cases1>.xuhaox{
    width: 100px;
    height: 100px;
    background-color: #00adec;

    /* Rotate div */
    transform:rotate(45deg);
    -ms-transform:rotate(45deg); /* Internet Explorer */
    -moz-transform:rotate(45deg); /* Firefox */
    -webkit-transform:rotate(45deg); /* Safari 和 Chrome */
    -o-transform:rotate(45deg); /* Opera */

    position: absolute;
    right: -50px;
    top: -50px;
    display: block;
    left: unset;
    z-index: 1000;

}
.xuhao{
    position: absolute;
    top: 0;
    right: 0;
    width:43px;
    font-size: 21px;
    text-align: center;
    line-height: 50px;
    color: #fff;
    z-index: 1000;
}

.cases2{
    position: absolute;
    width: 100%;
    height: 100%;
    padding: 0 24px;
    padding-top: 50px;
    line-height:24px ;
    color: #fff;
    font-size: 20px;
    text-align: left;
    background: rgba(0, 173, 236,0.7);
    left: 0;
    top: 100%;
    z-index: 999;
    transition: all 0.3s;

}
.cases2>span{
    display: block;
    font-size: 16px;
}
.cases2>span:nth-child(2){
    text-align: right;
    margin-top: 6px;
}
.cases>li>a:hover .cases2{
    top: 0;
}

.cases>li>a:hover .cases1>span{
    opacity: 0;
}


.casecon{
    width: 100%;
    padding: 0 50px;
}
.casecon>span{
    display: block;
    position: relative;
    z-index: 9999;
}
.casecon>span:nth-child(2){
    width: 342px;
    height: 229px;
    display: block;
    margin: 0 auto;
    margin-bottom: 40px;
}
.casecon>span:nth-child(2)>img{
    display: block;
    width: 100%;
    height: 100%;

}
.casecon>span{
    font-size: 16px;
    line-height: 24px;
}
.casecon>span:nth-child(3){
    color: #666;
    font-size: 16px;
}
.advices{
    color: #00adec;
    margin-top: 30px;
    margin-bottom: 12px;
    font-weight: bold;
}

.prevnew>span{
    font-weight: bold;
    font-size: 16px!important;
}
.prevnew>span>a{
    width: 100%;
    padding: 0 20px;
    border-right: 1px solid #666;
}
.xian1>a>span{
    display: inline-block;
}
.prevnew a:hover span{
    color: #666;
}
.prevnew a:hover .next{
    color: #00adec!important;
}
.prevnew a:hover .prev{
    color: #00adec!important;
}
.prev{
    margin-right: 10px;
}
.next{
    margin-left: 10px;
}
.prevnew>span:last-child>a{
    border-right: none!important;
}
.prevnew{
    display: inline-block;
    position: absolute;
    left: 0;
    right: 0;
    bottom: 60px;
    margin: 0 auto;
}