.box-case .headline{
    padding-top: 0;
}

.case-nav li{
    float: left;
    width: 380px;
    height: 260px;
    margin-bottom: 20px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: all 0.6s;
}
.case-nav li:hover{
    transform: scale(1.05);
}
.case-nav li.center{
    margin-left: 20px;
    margin-right: 20px;
}
.case-nav li a{
    display: block;
    width: 100%;
    height: 100%;
    color: #fff;
    padding-top: 110px;
    text-align: center;
}
.case-nav li i{
    font-size: 28px;
    line-height: 30px;
}
.case-nav li h3{
    font-size: 18px;
    line-height: 24px;
    font-weight: normal;
}

.case-box .case-item{
    position: relative;
    width: 100%;
    height: 420px;
    margin-top: 130px;
    color: #fff;
    background: url("../../../statics/images/hcr/case-item-bg.png") center no-repeat;
}
.case-item .case-title{
    position: absolute;
    width: 200px;
    height: 200px;
    left: 40px;
    top: -100px;
    background-color: #fff;
    border-radius: 50%;
    box-shadow:0 0 20px rgba(0, 0, 0, .2);;
}
.case-item .case-title .case-icon{
    width: 42px;
    height: 42px;
    margin: 20px auto 12px;
    background: url("../../../statics/images/hcr/case-icon.png") center no-repeat;
}
.case-item .case-title h3{
    width: 156px;
    margin: 0 auto;
    font-size: 22px;
    line-height: 26px;
    text-align: center;
    color: #203864;
    font-weight: normal;
}
.case-item .left-con{
    width: 520px;
    padding-left: 25px;
    padding-right: 25px;
    padding-top: 140px;
}
.case-item .right-con{
    width: 660px;
    padding-left: 35px;
    padding-right: 35px;
    padding-top: 140px;
}
.case-item h4{
    font-size: 20px;
    text-align: center;
    font-weight: normal;
}
.case-item p{
    margin-top: 20px;
    font-size: 16px;
    line-height: 24px;
}