.features{
    margin-top: 40px;
    background:rgba(255,255,255,1);
    box-shadow:1px 2px 5px 0px rgba(100,100,100,0.75);
    opacity:0.8;
}
.features_content img{
    display: block;
    margin: 0 auto;
    padding: 40px 0;
}
.features_tip{
    height: 80px;
}
.features_tip ul li:first-child{
    float: left;
    width: 280px;
    height: 40px;
    border-bottom: 3px dashed rgba(196,80,62,1);
    margin-right: 20px;
    margin-left: 20px;
    box-sizing: border-box;
}
.features_tip ul li:nth-child(2){
    position: relative;
    float: left;
    width:560px;
    height:80px;
    border:3px solid rgba(196,80,62,1);
    text-align: center;
    line-height: 74px;
    font-weight:400;
    color:rgba(196,80,62,1);
    font-size:26px;
    font-family:Microsoft YaHei;
    margin-right: 20px;
    box-sizing: border-box;
}
.features_tip ul li:nth-child(2) span{
    position: absolute;
    display: block;
    top: 2px;
    left: 2px;
    width:550px;
    height:70px;
    border:3px solid rgba(196,80,62,1);
    box-sizing: border-box;
}
.features_tip ul li:last-child{
    float: left;
    width: 280px;
    height: 40px;
    border-bottom: 3px dashed rgba(196,80,62,1);
    box-sizing: border-box;
}
.features_button_content{
    padding: 40px 80px;
    box-sizing: border-box;
    font-size: 16px;
    line-height: 30px;
}