.feature-img-container{
    height: 450px;
    padding-top: 80px;
    box-sizing: border-box;
}
.feature-img-container .content{
    height: 320px;
    display: flex;
}
.feature-img-container .content>li{
    flex: 1;
    height: 100%;
    transition: all 0.5s;
}
.feature-img-container .content>li:hover{
    box-shadow: 1px 2px 2px 2px rgba(0,0,0,.1)
}
.feature-img-container .img-wrapper{
    height: 170px;
    width: 100%;
    line-height: 170px;
    text-align: center;
}
.feature-img-container .img-wrapper>img{
    margin: 0 auto;
}
.feature-img-container .title{
    font-size:20px;
    text-align: center;
    margin: 20px 0;
    font-size: 20px;
    color: #323232;
    margin-bottom: 10px;
}
.feature-img-container .instructions{
    width: 196px;
    margin: 0 auto;
    font-size: 13px;
    color: #555;
    line-height: 20px;
    text-align: justify;
    line-height: 24px;
}




.connection-WeChat{
    height: 814px;
}
.connection-WeChat .paper{
    height: 174px;
    text-align: center;
    padding-top: 40px;
}
.connection-WeChat .paper>.title{
    height: 34px;
    line-height: 34px;
    font-size: 34px;
    color: rgba(54,54,54,1);
    letter-spacing: 3px;
    font-weight: bold;
    margin-bottom: 22px;
}
.connection-WeChat .paper>.describe{
    height: 18px;
    font-size: 18px;
    color: rgba(54,54,54,0.65);
    line-height: 18px;
    letter-spacing: 2px;
    margin-bottom: 44px;
    font-weight: 300;
}
.connection-container{
    height: 600px;
    position: relative;
}
.connection-container> li{
    height: 150px;
    width: 508px;
    padding: 20px 50px;
    box-sizing: border-box;
    cursor: pointer;
    transition: all 0.5s;
}
.connection-container> li:first-child{
    padding-top: 5px;
}
.connection-container> li.active{
    box-shadow: 1px 1px 15px 2px rgba(0,0,0,.1);
}

.connection-container> li>.title{
    font-size: 22px;
    line-height: 42px;
    color: #2B2B2B;
}
.connection-container> li>.instructions{
    font-size: 15px;
    line-height: 26px;
    margin-top: 12px;
    margin-bottom: 15px;
    color: #2B2B2B;
    margin-top: 12px;
}

.connection-container> li>.right-img{
    height: 600px;
    width: 612px;
    position: absolute;
    left: 608px;
    top: 0;
    text-align: center;
    line-height: 600px;
    opacity: 0;
    transition: all 0.5s;
    z-index: -1;
}

.connection-container> li.active>.right-img{
    opacity: 1;
    left: 508px;
    z-index: 1;
}
.connection-container> li.active>.right-img>img{
    box-shadow: 1px 7px 25px 2px rgba(0,0,0,.1);
}


.solution{
    height: 630px;
}
.solution .paper{
    height: 140px;
    text-align: center;
    padding-top: 60px;
}
.solution .paper>.title{
    font-size:34px;
    font-weight:bold;
    color:rgba(0,0,0,1);
    margin-bottom: 20px;
}
.solution .paper>.describe{
    font-size:18px;
    font-weight:500;
    color:rgba(100,100,100,1);
}
.solution .displayBox{
    height: 260px;
    display: flex;
}
.solution .displayBox>li{
    box-sizing: border-box;
    border: 1px solid;
    margin: 0 23px;
    flex: 1;
    padding: 20px;
}
.solution .displayBox>li:first-child{
    border-color: #C0C026;
}
.solution .displayBox>li:nth-child(2){
    border-color: #54CDA9;
}
.solution .displayBox>li:nth-child(3){
    border-color: #F86196;
}
.solution .displayBox>li:nth-child(4){
    border-color: #1296DB;
}
.solution .displayBox .title{
    font-size:24px;
    font-weight:500;
    color:rgba(50,50,50,1);
    margin-top: 10px;
    margin-bottom: 40px;
}
.solution .displayBox .num{
    font-size:40px;
    font-weight:800;
    color:rgba(50,50,50,1);
    margin-bottom: 50px;
}
.solution .displayBox .describe{
    font-size:14px;
    font-weight:500;
    color:rgba(50,50,50,1);
}