.cloud_page1 {
    width: 100%;
    height: 100%;
    background: url("../../imgs/cloud/bg1.jpg") center top / cover no-repeat;
}

.cloud_page2 {
    width: 100%;
    height: 100%;
    background: url("../../imgs/cloud/bg2.jpg") center top / cover no-repeat;
}

.cloud_page3 {
    width: 100%;
    height: 100%;
    background: url("../../imgs/cloud/bg3.jpg") center top / cover no-repeat;
}

.cloud_title {
    font-size: 25px;
    text-align: center;
    line-height: 50px;
    color: white;
    margin: auto;
    margin-bottom: 50px;
}
.cloud_page_title{
    color:white;
    font-size: 39px;
    text-align: center;
}
.cloud_page_xb{
    text-align: center;
    color: #D9EAF0;
    font-size: 16px;
    margin: 0;
}
.cloud_js{
    width: auto;
    margin: 30px;
    color: #D9EAF0;
    font-size: 14px;
    text-indent: 2em;
    line-height: 24px;
}
.cloud_list{
    text-align: center;
    margin-top: 80px;
}
.cloud_list li{
    display: inline-block;
    width: 288px;
    height: 375px;
}
.cloud_list li:first-child{
    background: url(../../imgs/cloud/buju1.png);
    background-size: 100% 100%;
}
.cloud_list li:first-child:hover{
    background: url(../../imgs/cloud/buju2.png);
    background-size: 100% 100%;
}
.cloud_list li:nth-child(2){
    background: url(../../imgs/cloud/wending1.png);
    background-size: 100% 100%;
}
.cloud_list li:nth-child(2):hover{
    background: url(../../imgs/cloud/wending2.png);
    background-size: 100% 100%;
}
.cloud_list li:nth-child(3){
    background: url(../../imgs/cloud/linghuo1.png);
    background-size: 100% 100%;
}
.cloud_list li:nth-child(3):hover{
    background: url(../../imgs/cloud/linghuo2.png);
    background-size: 100% 100%;
}
.cloud_list li:last-child{
    background: url(../../imgs/cloud/chuanshu1.png);
    background-size: 100% 100%;
}
.cloud_list li:last-child:hover{
    background: url(../../imgs/cloud/chuanshu2.png);
    background-size: 100% 100%;
}


/*css动效*/
.cloudTitleMove{
    position: relative;
    animation:bottomTo 2s;
    -webkit-animation: bottomTo 2s;
    -moz-animation: bottomTo 2s;
}
.titleTopTo{
    position: relative;
    animation:topTo 2s;
    -webkit-animation: topTo 2s;
    -moz-animation: topTo 2s;
}
.jsMove{
    position: relative;
    animation:bottomTo 2500ms;
    -webkit-animation: bottomTo 2500ms;
    -moz-animation: bottomTo 2500ms;
}
.listMove{
    position: relative;
    animation:rightTo 2000ms;
    -webkit-animation: rightTo 2000ms;
    -moz-animation: rightTo 2000ms;
}
.page4ulMove{
    position: relative;
    animation:bottomTo 1000ms;
    -webkit-animation: bottomTo 1000ms;
    -moz-animation: bottomTo 1000ms;
}
.page4TabMove{
    position: relative;
    animation:bottomTo 1500ms;
    -webkit-animation: bottomTo 1500ms;
    -moz-animation: bottomTo 1500ms;
}
.tabImgMove{
    position: relative;
    animation:bottomTo 2000ms;
    -webkit-animation: bottomTo 2000ms;
    -moz-animation: bottomTo 2000ms;
}
@keyframes bottomTo {
    0%{top:200px;opacity: 0}
    100%{top:0;opacity: 1}
}
@keyframes topTo {
    0%{bottom:100px;opacity: 0}
    100%{bottom:0;opacity: 1}
}
@keyframes rightTo {
    0%{left:200px;opacity: 0}
    100%{left:0;opacity: 1}
}


@media screen and (max-width:480px){
    .cloud_title {
        font-size: 30px;
        text-align: center;
        line-height: 50px;
        color: white;
        margin: auto;
        margin-bottom: 50px;
    }
    .cloud_list li{
        display: inline-block;
        width: 130px;
        height: 170px;
        margin:10px;
    }
}
@media screen and (min-width:480px){
    .cloud_title {
        font-size: 30px;
        text-align: center;
        line-height: 50px;
        color: white;
        margin: auto;
        margin-bottom: 50px;
    }
    .cloud_list li{
        display: inline-block;
        width: 144px;
        height: 188px;
        margin:10px;
    }
}
@media screen and (min-width: 768px) {
    .cloud_title {
        font-size: 40px;
        text-align: center;
        line-height: 90px;
        color: white;
        margin: auto;
        margin-bottom: 50px;
    }
    .cloud_list li{
        display: inline-block;
        width: 144px;
        height: 188px;
        margin:10px;
    }
}
@media screen and (min-width: 992px) {
    .cloud_title {
        font-size: 50px;
        text-align: center;
        line-height: 50px;
        color: white;
        margin: auto;
        margin-bottom: 120px;
    }
    .cloud_js{
        text-indent: 2em;
        margin: 50px 80px 0 80px;
        color: #D9EAF0;
        font-size: 18px;
        line-height: 30px;
    }
    .cloud_list li{
        display: inline-block;
        width: 230px;
        height: 304px;
    }
}
@media screen and (min-width: 1200px) {
    .cloud_title {
        font-size: 72px;
        text-align: center;
        line-height: 50px;
        color: white;
        margin: auto;
        margin-bottom: 150px;
    }
    .cloud_js{
        text-indent: 2em;
        width: 1185px;
        margin: 70px auto 0 auto;
        color: #D9EAF0;
        font-size: 20px;
        line-height: 36px;
    }
    .cloud_list li{
        display: inline-block;
        width: 288px;
        height: 375px;
    }
}