.rpo-txt {
    width: 80%;
    margin: 50px auto;
    /* margin-bottom: 85px; */
    font-size: 24px;
    line-height: 36px;
    color: #020202;
}

.rpo-txt>span {
    color: red;
}

.case {
    background: #FFEFEF;
    padding: 60px 0;
}

.case-box {
    display: flex;
    justify-content: space-between;
}

.case-box>li {
    width: 32.5%;
    background: #FFFFFF;
    padding: 30px;
    box-sizing: border-box;
}

.case-box-top {
    display: flex;
    justify-content: space-between;
}

.case-top-img {
    width: 30%;
}

.case-top-img>img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
}

.case-top-tit {
    width: 70%;
}

.case-top-tit1 {
    font-weight: bold;
    font-size: 24px;
    line-height: 36px;
    margin-top: 6px;
}

.case-top-tit2 {
    font-size: 20px;
    line-height: 36px;
    margin-top: 4px;
}

.case-bottom {
    margin-top: 30px;
    font-size: 14px;
    line-height: 20px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 12;
    overflow: hidden;
}

.case-footer {
    position: relative;
    overflow: hidden;
    padding: 100px 0;
}

.case-footerimg {
    opacity: .1;
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
    width: 612px;
    height: 100%;
}

.case-footerimg>img {
    width: 100%;
    height: 100%;
}

.case-footersub {
    padding: 120px 0 0 0;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    box-sizing: border-box;
    /* position: relative; */
}

.casesub-footerimg {
    width: 62%;
    overflow: hidden;
}

.casesub-footerimg:hover img {
    transform: scale(1.1);
}

.casesub-footerimg img {
    width: 100%;
    transition: all .8s;
}

img {
    cursor: pointer;
}

.casesub-footerimg2 {
    z-index: 3;
    width: 48%;
    margin-left: -10%;
    margin-top: 50px;
    line-height: 32px;
    height: 400px;
    box-sizing: border-box;
    background: #fff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .16);
    padding: 136px 56px;
}

.casesub-footerimg3 {
    margin-left: 0;
}

.casesub-footerimg4 {
    margin-left: -10%;
}

.case-footersub>li {
    margin-bottom: 100px;
}

.index>div {
    margin-bottom: 100px;
}

.index-aboutsub {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.index-aboutsub>li {
    width: 33.33333%;
    box-sizing: border-box;
    height: 300px;
    overflow: hidden;
    transition: all .8s;
    cursor: pointer;
}

.index-aboutsub>li:nth-of-type(2n) {
    background: rgb(154, 0, 0);
    color: #fff;
    text-align: center;
}

.index-aboutsub-tit {
    font-size: 28px;
}

.index-aboutsub-txt {
    margin-top: 20px;
}

.index-aboutsub>li>div {
    margin-top: 100px;
}

.index-inline {
    width: 40px;
    height: 4px;
    background: #fff;
    margin: 0 auto;
    margin-top: 10px;
}

.index-aboutsub>li:nth-of-type(2n):hover {
    background: #00144D;
}

.index-aboutsub img {
    transition: all .6s;
}

.index-aboutsub>li:nth-of-type(2n-1):hover img {
    transform: scale(1.1);
}

.index-content {
    display: flex;
    justify-content: space-between;
}

.index-content>li {
    width: 22%;
    background: #fff;
    padding: 30px;
    width: 310px;
    height: 270px;
    box-sizing: border-box;
    box-shadow: 0 4px 20px rgba(0, 0, 0, .16);
}

.index-content>li:first-of-type {
    background: url("../images/rpo-content1.jpg") no-repeat;
}

.index-content>li:nth-of-type(2) {
    background: url("../images/rpo-content2.jpg") no-repeat;
}

.index-content>li:nth-of-type(3) {
    background: url("../images/rpo-content3.jpg") no-repeat;
}

.index-content>li:nth-of-type(4) {
    background: url("../images/rpo-content4.jpg") no-repeat;
}

.index-content-tit {
    font-weight: bold;
}

.index-content-lin {
    width: 32px;
    height: 4px;
    background: red;
    margin-top: 16px;
}

.index-content-txt {
    line-height: 20px;
    font-size: 14px;
    margin-top: 20px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 5;
    overflow: hidden;
}

.index-se {
    z-index: 99;
    /* background: #fff; */
}

.index-advan {
    background: url("../images/index-bg.jpg") no-repeat center;
    background-size: cover;
    padding: 80px 0;
    padding-bottom: 134px;
    z-index: -1;
    margin-top: -135px;
    color: #fff;
    margin-bottom: 0 !important;
    position: relative;
}

.index-advanbox {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    background: rgb(7, 7, 7);
    opacity: .3;
    z-index: -1;
}

.index-advan .module-tit {
    margin-top: 90px;
    color: #fff;
    border-left: 12px solid #fff;
}

.index-advan-ma {
    color: #fff;
    margin-top: -10px;
}

.index-advan-main {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.index-advan-main>li {
    padding: 0 20px;
    box-sizing: border-box;
    margin-top: 20px;
    width: 48%;
    background: #3F3D56;
    border-left: 12px solid #050041;
    height: 200px;
    overflow: hidden;
}

.index-main-tit {
    font-size: 20px;
    /* line-height: 33px; */
    font-weight: bold;
    padding: 20px 0;
    color: #D3CCFF;
}

.index-main-txt {
    font-size: 14px;
    line-height: 20px;
    padding-bottom: 40px;
}

.index-main-txt>span {
    color: #FFFF50;
}

.case-footerbox {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.case-introimg {
    width: 50%;
}
.case-introbox{
    width: 42%;
    margin: auto;
    background: #F5F5F5;
    line-height: 32px;
    font-size: 22px;
    padding: 42px 23px;
    box-sizing: border-box;
    border-radius: 12px;
    color: #3F3D56;
}

.case-introimg>img {
    width: 100%;
}