main{
    background-color: RGBA(250, 250, 250, 1);
}
.banner1 .bannerBox{
    text-align: left;
}
.case{
    position: relative;
    padding: 80px 0 140px;
}
.case .caseLine{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    width: 3px;
    height: 0;
    background: #1F64B0;
    border-radius: 2px;
    pointer-events: none;
    transition: all .1s;
}
.case .box1{
    margin-top: 100px;
    position: relative;
    z-index: 3;
}
.case .box1 .box-c li{
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}
.case .box1 .box-c li .circle{
    align-self: center;
    width: 60px;
    height: 60px;
    background: rgba(31, 100, 176, .2);
    /* border: 22px solid rgba(31, 100, 176, .2); */
    box-shadow: 5px 9px 30px 0px rgba(31,100,176,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}
.case .box1 .box-c li .circle span{
    border-radius: 50%;
    width: 15px;
    height: 15px;
    background: rgba(31, 100, 176, 1);
    transition: all .3s;
}
.case .box1 .box-c li:nth-child(even){
    flex-direction: row-reverse;
}
.case .box1 .box-c li:not(:last-child){
    margin-bottom: 161px;
}
.case .box1 .box-c li .pic{
    border-radius: 5px;
}
.case .box1 .box-c li .text-box,
.case .box1 .box-c li .pic{
    width: 42.85%;
}
.case .box1 .box-c li .text-box{
    padding-top: 45px;
}
.case .box1 .box-c li .text-title{
    font-family: Microsoft YaHei;
    font-weight: 300;
    color: #222222;
    line-height: 1.25;
}
.case .box1 .box-c li .text-title span{
    font-family: Rany-Light;
}
.case .box1 .box-c li .text{
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 30px;
    margin-top: 37px;
}
.case .box1 .box-c li .text-des{
    font-weight: bold;
    font-size: 24px;
    color: #222222;
    line-height: 1.5;
    margin-top: 49px;
}
@media (max-width: 1440px) {
    .case .box1 .box-c li:not(:last-child){
        margin-bottom: 90px;
    }
}
@media (max-width:1280px) {
    .case .box1 .box-c li .text-box{
        padding-top: 20px;
    }
}
@media (max-width:1199px) {
    .case .box1 .box-c li .text-box{
        padding-top: 0px;
    }
    .case{
        padding: 80px 0;
    }
    .case .box1{
        margin-top: 45px;
    }
    .case .box1 .box-c li:not(:last-child){
        margin-bottom: 45px;
    }
    .case .box1 .box-c li .text{
        margin-top: 15px;
    }
    .case .box1 .box-c li .text-des{
        margin-top: 20px;
        font-size: 20px;
    }
    .case .box1 .box-c li .circle{
        width: 40px;
        height: 40px;
    }
    .case .box1 .box-c li .circle span{
        width: 10px;
        height: 10px;
    }
    .case .box1 .box-c li .text-box, .case .box1 .box-c li .pic{
        width: 45%;
    }
}
@media (max-width:1024px) {
    .case .box1 .box-c li .text{
        font-size: 14px;
        line-height: 24px;
    }
    .case{
        padding: 70px 0;
    }
    .case .box1{
        margin-top: 40px;
    }
    .case .box1 .box-c li:not(:last-child){
        margin-bottom: 40px;
    }
    .case .box1 .box-c li .text-des{
        font-size: 18px;
    }
    .case .box1 .box-c li .text-title{
        font-size: 22px;
    }
}
@media (max-width: 768px) {
    .case .box1 .box-c li .text-des{
        margin-top: 10px;
    }
    .case .box1 .box-c li .text{
        margin-top: 10px;
    }
    .case .box1 .box-c li .text-title{
        font-size: 20px;
    }
    .case .box1 .box-c li .text-box{
        margin-top: 20px;
    }
    .case .box1 .box-c li:nth-child(even),
    .case .box1 .box-c li{
        flex-direction: column;
    }
    .case .box1 .box-c li .text-box, .case .box1 .box-c li .pic{
        width: 100%;
    }
    .case .caseLine,
    .case .box1 .box-c li .circle{
        display: none;
    }
    .case{
        padding: 60px 0;
    }
    .case .box1{
        margin-top: 30px;
    }
    .case .box1 .box-c li:not(:last-child){
        margin-bottom: 30px;
    }
}
@media (max-width: 500px) {
    .case .box1 .box-c li .text-title{
        font-size: 18px;
    }
    .case .box1 .box-c li .text-box{
        margin-top: 15px;
    }
    .case .box1 .box-c li .text-des{
        font-size: 16px;
    }
    .case{
        padding: 50px 0;
    }
    .case .box1{
        margin-top: 25px;
    }
}