.banner {
    width: 100%;
    height: 100%;
    padding: 10% 0 25%;
    background: url("../img/home_top@1x.png") no-repeat center;
    background-size: cover;
}
.banner h1,.banner p{
    width:100%;
    color:#fff;
    text-align:center;
}
.banner h1{
    padding-top:90px;
    font-size:52px;
}
.banner p{
    margin-top:25px;
    font-size:18px;
}
.cts_a h3 {
    margin-bottom: 40px;
    padding-top: 80px;
    font-family: PingFangSC-Semibold;
    font-size: 48px;
    color: #333333;
    letter-spacing: 0.95px;
    text-align: center;
    line-height: 85px;
}

.cts_a_a {
    width: 1200px;
    margin: 0 auto;
    height:auto;
    padding-bottom: 80px;
    display:flex;
    flex-wrap:wrap;
}

.cts_a_a div img {
    display: block;
    height: 140px;
}

.cts_a_a div span {
    display: block;
    font-family: PingFangSC-Regular;
    font-size: 20px;
    color: #999999;
    letter-spacing: 1.38px;
    text-align: center;
}

.cts_a_a div {
    margin: 40px 0;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 24%;
    height: 196px;
    margin-left:1%;
    text-align: center;
}
.cts_b {
    width:100%;
    margin:0 auto;
    display: flex;
    flex-direction: column;
    background: #eaeaea;
    align-items: center;
}

.cts_b img {
    width: 670px;
    height: 470px;
    margin-top: 100px;
}

.cts_b>h3 {
    font-family: PingFangSC-Semibold;
    font-size: 48px;
    color: #333333;
    letter-spacing: 0.95px;
    text-align: center;
    line-height: 85px;
    margin-top: 120px;
}

.cts_b>p {
    font-family: PingFangSC-Light;
    font-size: 22px;
    color: #333333;
    letter-spacing: 0;
    text-align: center;
    margin-top: 10px;
}

.cts_b_b {
    width: 1200px;
    margin: 120px auto;
    display: flex;
    justify-content: space-around;
    flex-wrap:wrap;
}

.cts_b_b h6 {
    font-weight: normal;
    font-family: PingFangSC-Light;
    font-size: 48px;
    color: #333333;
    letter-spacing: 0;
    text-align: left;
}

.cts_b_b p {
    font-family: PingFangSC-Light;
    font-size: 16px;
    color: #333333;
    letter-spacing: 0;
    text-align: left;
    margin-top: 10px;
    line-height: 2;
}

.cts_b_b div {
    width: 380px;
    height: auto;
    text-align:center;
}

.cts_c h3 {
    text-align: center;
    font-size: 48px;
    margin: 120px 0 80px;
}

.cts_c_c {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
}

.cts_c_c div {
    width: 27%;
    margin: 0 0 20px 20px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    font-size: 28px;
    border: 1px solid #E7E8EA;
    border-radius: 4px;
    padding: 20px;
}

.cts_c_c div span {
    margin-left: 30px;
    font-family: PingFangSC-Regular;
    font-size: 28px;
    color: #999999;
}

.cts_c_c div:last-child span {
    display: block;
    width: 100%;
    text-align: center;
}

.cts_c_c div img {
    width: 92px;
    height: 92px;
    margin-left: 20px;
}

.cts_d {
    height: 870px;
    text-align: center;
    overflow: hidden;
}

.cts_d h3 {
    font-size: 48px;
    margin-top: 120px;
    margin-bottom: 30px;
}

.cts_d ul {
    width: 100%;
    margin: 0 35%;
    margin-bottom: 40px;
    overflow: hidden;
}

.cts_d ul li:first-child,
.cts_d ul li:hover {
    font-family: PingFangSC-Regular;
    font-size: 22px;
    color: #E62D2A;
    letter-spacing: 0;
    text-align: center;
    cursor: pointer;
}

.cts_d ul li {
    float: left;
    font-family: PingFangSC-Regular;
    font-size: 22px;
    color: #666666;
    letter-spacing: 0;
    text-align: center;
    margin-right: 57px;
}

.cts_d_d {
    box-sizing: content-box;
    padding: 0px 180px;
    
}

.cts_d_d .tc {
    float: left;
    width: 18%;
    margin-left: 2%;
    height: 288px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.cts_d_d .tc:hover {
    background: #FFFFFF;
    box-shadow: 0 3px 11px 0 rgba(0, 0, 0, 0.11);
}

.cts_d_d .tc div {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 1px solid #ccc;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.code {
    width: 140px;
    height: 140px;
}

.cts_d_d .tc span {
    font-family: PingFangSC-Regular;
    font-size: 16px;
    color: #999999;
    letter-spacing: 0;
    text-align: center;
    margin-top: 22px;
}

.fot {
    width: 100%;
    height: 390px;
    background: url("../img/home_mianfeitiyan_background.png");
    background-size: 100% 100%;
}
  
.fot_t {
    height: auto;
}

.fot_t h3 {
    margin: 0;
    padding-top: 80px;
    font-weight: normal;
    font-family: PingFangSC-Thin;
    font-size: 48px;
    color: #FFFFFF;
    letter-spacing: 0.95px;
    text-align: center;
    line-height: 85px;
}
.fot_t .btn{
    position:relative;
    width:100%;
    margin:0 auto;
}
.fot_t .btn .prompt{
    color:#fff;
    position:absolute;
    left:38%;
    top:100%;
}
.fot_t > div {
    text-align: center;
}

.fot_t > div > a {
    display: inline-block;
    margin-top: 50px;
    padding: 9px 60px;
    border-radius: 2px;
    opacity: 0.8;
    background: #E62D2A;
    color: #fff;
    text-align: center;
    letter-spacing: 1.38px;
    font-size: 20px;
}

.fot_t > div > a:first-child {
    margin-right: 50px;
}
@media screen and (max-width:750px){
    .cts_a h3{
        font-size:36px;
    }
    .cts_a_a div{
       margin:20px 0;
        width:50%;
        text-align:center;
        transform:scale(0.6);
    }
    .cts_b>h3{
        font-size:36px;
    }
    .cts_b>p{
        font-size:16px;
    }
    .cts_b_b h6{
        font-size:36px;
    }
    .fot_t h3{
        font-size:36px;
        margin-top:0;
    }
}
@media screen and (max-width:420px){
    .cts_a_a{
        width:auto;
    }
    .cts_a h3{
        padding: 0;
        font-size:24px;
        margin-bottom:0;
    }
    .cts_a_a div{
        margin:-20px 0;
        width:50%;
        text-align:center;
        transform:scale(0.6);
    }
    .cts_b{
        margin:-46px auto 0 auto;
    }
    .cts_b img {
        padding: 0 10px 0 20px;
    margin-top: 50px;
    }
    .cts_b>p {
     font-size: 14px;
     margin-top:-31px;
    }   
    .cts_b>h3{
        font-size:24px;
        margin-top:24px;
        line-height:85px;
    }
    .cts_b img{
        padding:0 20px;
        width:100%;
        height:auto;
    }
    .cts_b_b{
        width: 100%;
        display:flex;
        margin:0 auto;
        justify-content:center;
        align-items:center;
    }
    .cts_b_b div{
        width:42%;
        margin: 20px 4%;
        padding:0 10px;
    }
    .cts_b_b div h6{
        font-size:30px;
    }
    .cts_b_b div p{
        font-size:12px;
        line-height:1.5;
    }
    .fot_t > div > a {
        padding: 9px 40px;
        font-size:14px;
    }
    .fot{
        height:auto;
    }
    .fot_t h3{
        padding:55px 0 95px 0;
        line-height:0;
    }
    .fot_t .btn {
        margin-top: -110px;
    }
    .banner{
        width:100%;
        background:url("../img/home_top@1x.png") no-repeat;
        background-size:100% 100%;
        padding-top:60px;  
        padding-bottom:100px;
    }
    .banner h1{
        font-size:20px;
        padding-top:17px;
    }
    .banner p{
        margin-top:10px;
        font-size:10px;
    }
    .fot_t .btn .prompt{
    color:#fff;
    left:10%;
    top:95%;
}
}