.title h4{
    position: relative;
}

.title h4::before{
    content: url(../images/tit_lef.png);
    position: absolute;
    top: -6px;
    left: -30px;
}

.title h4::after{
    content: url(../images/tit_rig.png);
    position: absolute;
    top: 18px;
    right: -30px;
}


.part1-content{
    justify-content: space-between;
}

.part1-content p{
    width: 550px;
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #666666;
    line-height: 34px;
    text-align: justify;
}

.part1-content img{
    width: 501px;
}

.part2-step1{
    height: 454px;
    position: relative;
}

.step1-left{
    position: absolute;
    width: 600px;
    height: 454px;
    background: #F5F7FA;
    border-radius: 4px;
    top: 0;
    left: 0;
    padding: 28px;
}

.step1-left>p:nth-child(1){
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #333333;
    line-height: 30px;
}

.step1-left>p:nth-child(2){
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #666666;
    line-height: 30px;
}

.step1-right{
    position: absolute;
    width: 634px;
    height: 416px;
    background: #FFFFFF;
    border: 1px solid #F0F3F7;
    box-shadow: 0px 0px 14px 2px rgba(222, 236, 255, 0.6);
    border-radius: 4px;  
    top: 50%;
    right: 0;
    transform: translateY(-50%);
}

.book-icos{
    position: absolute;
    height: 100%;
    top: 0;
    left: -3px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
    margin-bottom: 0;
}

.book-icos li{
    width: 10px;
    height: 10px;
    background: #588AFD;
    border-radius: 50%;
    box-shadow: 0px 2px 10px 1px rgba(183, 214, 255, 0.8);
}

.step1-right .pages{
    padding: 30px 40px;
}

.pages>:nth-child(1){
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #333333;
    line-height: 30px;
}

.pages>:nth-child(2){
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #666666;
    line-height: 32px;
}

.pages a, .a-style{
    color: #588AFD;
}

.img-list{
    padding-top: 50px;
    justify-content: space-between;
    flex-wrap: wrap;
}

.img-item{
    width:580px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.img-item img{
    width: 100%;
    height: 400px;
}

.img-item-tit{
    font-size: 22px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #333333;
    line-height: 60px;
    position: relative;
}

.img-item-tit::after{
    position: absolute;
    content: url(../images/break_line.png);
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
}

.img-item p{
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #666666;
    line-height: 32px;
    margin-top: 20px;
    margin-bottom: 20px;
}

.view-list{
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.view-item{
    width: 33.33%;
    height: 240px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.view-item img{
    width: 84px;
    height: 84px;
    margin-bottom: 30px;
}

.view-item p{
    font-size: 18px;
    font-family: Source Han Sans SC;
    font-weight: 400;
    color: #666666;
    line-height: 32px;
    width: 320px;
}