html,body{
    color:#333;
    height: 100%;
    position:relative;
    background-color:#FFF;
    overflow-x: hidden;
}
html{
    font-size: 62.5%;
}
body{
    min-width:320px;
    font-size: 1.6rem;
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: 100vh;
}
.conn_box1{
    width: 100%;
    height: 41.58vw;
    min-height: 320px;
    background: url('../images/conn_1.jpg') no-repeat;
    background-size: cover;
    color:#F2F2F2;
    position: relative;
    text-align: center;
}
.conn_box1_main{
    width:1150px;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}
.conn_box1_title{
    font-weight: bold;
    font-size: 48px;
}
.conn_box1_text1{
    font-size: 20px;
    padding-top: 24px;
}
.conn_box1_text2{
    font-size: 24px;
    color: #F2F2F2;
    padding-top: 30px;
}
.conn_box1_text3{
    width: 375px;
    margin: 0 auto;
    margin-top: 70px;
    border-radius: 27px;
    border: 1px solid #FFFFFF;
    padding: 15px 12px;
    font-size: 18px;
}
.conn_box1_img{
    width: 372px;
    margin: 0 auto;
    padding-top: 60px;
}
.conn_box1_img img{
    width: 100%;
    display: block;
}
.conn_box2{
    width: 100%;
    padding:100px 0;
}
.conn_box2_all{
    width:1150px;
    margin:0 auto;
    text-align:center;
    color: #262626;
}
.conn_box2_title{
    font-weight: bold;
    font-size: 48px;
}
.conn_box2_text1{
    font-size: 24px;
    padding-top: 29px;
}
.conn_box2_main{
    width:100%;
    padding-top: 100px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.conn_box2_main_left{
    width:50%;
    position: relative;
}
.conn_box2_main_left_img{
    width:61%;
    margin-left:11%;
}
.conn_box2_main_left_img img{
    width: 100%;
    display: block;
}
.conn_box2_main_left_text1{
    font-size: 18px;
    position: absolute;
    top: 5%;
    left: 0;
}
.conn_box2_main_left_text2{
    font-size: 18px;
    position: absolute;
    bottom: 12%;
    left: 0;
}
.conn_box2_main_left_text3{
    position: absolute;
    font-size: 18px;
    top: 52%;
    left: 73%;
}
.conn_box2_main_right{
    width:40%;
}
.conn_box2_main_right li{
    list-style: none;
    background: linear-gradient(90deg, #184FA8 0%, #4D80D3 50%, #184FA8 100%);
    border-radius: 28px;
    padding: 15px 12px;
    font-size: 18px;
    color: #FFFFFF;
    margin-bottom: 30px;
}
.conn_box3{
    width: 100%;
    height: 45.26vw;
    min-height: 320px;
    background: url('../images/conn_4.jpg') no-repeat;
    background-size: cover;
    color:#fff;
    display: flex;
    align-items: center;
}
.conn_box3_main{
    width:1180px;
    margin:0 auto;
    display: flex;
    align-items: center;
    justify-content: space-around;
}
.conn_box3_left{
    width: 45%;
}
.conn_box3_left_title{
    font-weight: bold;
    font-size: 48px;
}
.conn_box3_left_text{
    font-size: 24px;
    padding-top: 58px;
    line-height: 36px;
}
.conn_box3_right{
    width:45%;
}
.conn_box3_right img{
    width: 100%;
}
.conn_box3_img{
    display: block;
}
.mconn_box3_img{
    display: none;
}
.conn_box4{
    width: 1180px;
    margin: 0 auto;
    text-align: center;
    color: #262626;
    padding:100px 0;
}
.conn_box4_title{
    font-weight: bold;
    font-size: 48px;
}
.conn_box4_text1{
    font-size: 24px;
    padding-top: 30px;
}
.conn_box4_img{
    width: 1076px;
    margin: 0 auto;
    padding-top: 60px;
}
.conn_box4_img img{
    width: 100%;
}
.conn_box5{
    width: 100%;
    height: 45.26vw;
    min-height: 320px;
    background: url('../images/conn_10.png') no-repeat;
    background-size: cover;
    color:#fff;
    display: flex;
    align-items: center;
    text-align:center;
}
.conn_box5_all{
    width:1180px;
    margin:0 auto;
}
.conn_box5_title{
    font-weight: bold;
    font-size: 48px;
}
.conn_box5_text{
    font-size: 24px;
    padding-top: 28px;
}
.conn_box5_main{
    width: 100%;
    padding-top: 100px;
    display: flex;
    justify-content: space-around;
}
.conn_box5_main li{
    width: 27%;
    list-style: none;
}
.conn_box5_main li img{
    width: 150px;
    margin: 0 auto;
}
.conn_box5_main_title{
    font-weight: bold;
    font-size: 24px;
    padding-top: 35px;
}
.conn_box5_main_text1{
    font-size: 18px;
    padding-top: 15px;
}
.conn_box5_main_text2{
    font-size: 18px;
    padding-top: 10px;
}
/*1200px以下导航栏和页脚的样式切换*/
@media (max-width: 1200px) {
    .conn_box1_main{
        width:96%;
    }
    .conn_box1_title{
        font-size: 4.6rem;
    }
    .conn_box1_text1{
        padding-top: 2rem;
    }
    .conn_box1_text2{
        font-size: 2.2rem;
        padding-top: 1.5rem;
    }
    .conn_box1_text3{
        margin-top: 3rem;
        font-size: 1.6rem;
    }
    .conn_box1_img{
        width:29.6rem;
        padding-top: 2.5rem;
    }
    .conn_box2_all{
        width:98%;
    }
    .conn_box2_title{
        font-size: 4.6rem;
    }
    .conn_box2_text1{
        font-size: 2.2rem;
        padding-top: 2rem;
    }
    .conn_box2_main{
        padding-top: 5rem;
    }
    .conn_box2_main_left{
        width:55%;
        position: relative;
    }
    .conn_box2_main_left_img{
        width:70%;
        max-width: 35.2rem;
        margin-left:12%;
    }
    .conn_box2_main_left_text1{
        font-size: 1.6rem;
    }
    .conn_box2_main_left_text2{
        font-size: 1.6rem;
    }
    .conn_box2_main_left_text3{
        font-size: 1.6rem;
        top: 67%;
        left: 63%;
    }
    .conn_box2_main_right{
        width:45%;
        max-width:45rem;
    }
    .conn_box2_main_right li{
        border-radius: 2.4rem;
        padding: 1.2rem 0.8rem;
        font-size: 1.6rem;
        margin-bottom: 2.5rem;
    }
    .conn_box3_main{
        width:100%;
    }
    .conn_box3_left{
        width: 54%;
    }
    .conn_box3_left_title{
        font-size: 4.6rem;
    }
    .conn_box3_left_text{
        font-size: 2.2rem;
        padding-top: 3rem;
        line-height: 2.8rem;
    }
    .conn_box4{
        width: 96%;
        margin: 0 auto;
    }
    .conn_box4_title{
        font-size: 4.6rem;
    }
    .conn_box4_text1{
        font-size: 2.2rem;
        padding-top: 2.4rem;
    }
    .conn_box4_img{
        width: 90%;
        margin: 0 auto;
        padding-top: 5rem;
    }
    .conn_box5_all{
        width:96%;
        margin:0 auto;
    }
    .conn_box5_title{
        font-size: 4.6rem;
    }
    .conn_box5_text{
        font-size: 2.2rem;
        padding-top: 2.2rem;
    }
    .conn_box5_main{
        padding-top: 5rem;
    }
    .conn_box5_main li{
        width: 29%;
    }
    .conn_box5_main li img{
        width: 27%;
        margin: 0 auto;
    }
    .conn_box5_main_title{
        font-size: 2rem;
        padding-top: 2rem;
    }
    .conn_box5_main_text1{
        font-size: 1.6rem;
        padding-top: 1rem;
    }
    .conn_box5_main_text2{
        font-size: 1.6rem;
        padding-top: 0.8rem;
    }
}
@media (min-width: 769px) and (max-width: 1200px) {

}
/* 媒体查询 - 平板设备 */
/*使用rem作单位*/
@media (max-width: 768px) {
    .conn_box1{
        width: 100%;
        height: 76vw;
        min-height:20rem;
        background: url('../images/mconn_1.jpg') no-repeat;
        background-size: cover;
    }
    .conn_box1_title{
        font-size: 4rem;
    }
    .conn_box1_text1{
        font-size: 1.6rem;
        padding-top: 1.6rem;
    }
    .conn_box1_text2{
        font-size: 2rem;
        padding-top: 2rem;
    }
    .conn_box1_text3{
        width: 62%;
        margin-top: 3rem;
        border-radius: 2rem;
        padding: 1.2rem 1rem;
        font-size: 1.4rem;
    }
    .conn_box1_img{
        width: 40%;
        padding-top: 3rem;
    }
    .conn_box2{
        padding:8rem 0;
    }
    .conn_box2_all{
        width:96%;
    }
    .conn_box2_title{
        font-size: 4rem;
    }
    .conn_box2_text1{
        font-size: 2rem;
        padding-top: 1.8rem;
    }
    .conn_box2_main{
        padding-top: 4rem;
        display: flex;
        flex-wrap: wrap;
    }
    .conn_box2_main_left{
        width:100%;
        position: relative;
        max-width: 40rem;
        margin:0 auto;
    }
    .conn_box2_main_left_img{
        width:91%;
        max-width: 35.2rem;
    }
    .conn_box2_main_left_text1{
        font-size: 1.4rem;
    }
    .conn_box2_main_left_text2{
        font-size: 1.4rem;
    }
    .conn_box2_main_left_text3{
        font-size: 1.4rem;
        left: 84%;
    }
    .conn_box2_main_right{
        width:100%;
        max-width:45rem;
        margin:0 auto;
        margin-top:4rem;
    }
    .conn_box2_main_right li{
        border-radius: 2rem;
        padding: 1.2rem 0.8rem;
        font-size: 1.4rem;
        margin-bottom: 2rem;
    }
    .conn_box3{
        width: 100%;
        height: 140vw;
        min-height: 30rem;
        background: url('../images/mconn_4.jpg') no-repeat;
        background-size: cover;
    }
    .conn_box3_main{
        width:98%;
        text-align:center;
        display: flex;
        flex-wrap: wrap;
    }
    .conn_box3_left{
        width: 100%;
        margin-bottom:2rem;
    }
    .conn_box3_left_title{
        font-size: 4rem;
    }
    .conn_box3_left_text{
        font-size: 2rem;
        padding-top: 2rem;
        line-height: 2.4rem;
    }
    .conn_box3_right{
        width:75%;
    }
    .conn_box3_img{
        display: none;
    }
    .mconn_box3_img{
        display: block;
    }
    .conn_box4{
        padding:8rem 0;
    }
    .conn_box4_title{
        font-size: 4rem;
    }
    .conn_box4_text1{
        font-size: 2rem;
        padding-top: 1.8rem;
    }
    .conn_box4_img{
        padding-top: 4rem;
    }
    .conn_box5{
        width: 100%;
        height: 197.33vw;
        min-height: 60rem;
        background: url('../images/mconn_5.png') no-repeat;
        background-size: cover;
    }
    .conn_box5_title{
        font-size: 4rem;
    }
    .conn_box5_text{
        font-size: 2rem;
        padding-top: 1.8rem;
    }
    .conn_box5_main{
        padding-top: 4rem;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .conn_box5_main li{
        width: 100%;
        margin-bottom:4rem;
    }
    .conn_box5_main li img{
        width: 20%;
        margin: 0 auto;
    }
    .conn_box5_main li:last-child{
        margin-bottom: 0;
    }
    .conn_box5_main_title{
        font-size: 1.8rem;
        padding-top: 1.6rem;
    }
    .conn_box5_main_text1{
        font-size: 1.4rem;
        padding-top: 0.8rem;
    }
    .conn_box5_main_text2{
        font-size: 1.4rem;
        padding-top: 0.6rem;
    }
}
/* 媒体查询 - 移动设备 */
/*使用rem作单位*/
@media (max-width: 480px) {
    .conn_box1_title{
        font-size: 3rem;
    }
    .conn_box1_text1{
        font-size: 1.4rem;
        padding-top: 1rem;
    }
    .conn_box1_text2{
        font-size: 1.6rem;
        line-height:1.8rem;
        padding-top: 1rem;
    }
    .conn_box1_text3{
        width: 70%;
        margin-top: 1rem;
        border-radius: 2rem;
        padding: 1rem 0.8rem;
        font-size: 1.2rem;
    }
    .conn_box1_img{
        width: 52%;
        padding-top: 1.5rem;
    }
    .conn_box2{
        padding:6rem 0;
    }
    .conn_box2_title{
        font-size: 3rem;
    }
    .conn_box2_text1{
        font-size: 1.4rem;
        padding-top: 1rem;
    }
    .conn_box2_main{
        padding-top: 4rem;
    }
    .conn_box2_main_left{
        width:100%;
        max-width:25rem;
    }
    .conn_box2_main_left_img{
        width:90%;
        margin:0 auto;
    }
    .conn_box2_main_left_text1{
        font-size: 1.2rem;
        top: -8%;
        left: 8%;
    }
    .conn_box2_main_left_text2{
        font-size: 1.2rem;
        bottom: -8%;
        left: 12%;
    }
    .conn_box2_main_left_text3{
        font-size: 1.2rem;
        top: 67%;
        left: 76%;
    }
    .conn_box2_main_right{
        width:100%;
        max-width:28rem;
        margin:0 auto;
        margin-top:4rem;
    }
    .conn_box2_main_right li{
        border-radius: 2rem;
        padding: 1.2rem 0.8rem;
        font-size: 1.2rem;
        margin-bottom: 2rem;
    }
    .conn_box3_left_title{
        font-size: 3rem;
    }
    .conn_box3_left_text{
        font-size: 1.4rem;
        padding-top: 1.5rem;
        line-height: 1.8rem;
    }
    .conn_box3_right{
        width:90%;
    }
    .conn_box4{
        padding:6rem 0;
    }
    .conn_box4_title{
        font-size: 3rem;
    }
    .conn_box4_text1{
        font-size: 1.4rem;
        padding-top: 1rem;
    }
    .conn_box4_img{
        width:100%;
        padding-top: 2rem;
    }
    .conn_box5_title{
        font-size: 3rem;
    }
    .conn_box5_text{
        font-size: 1.4rem;
        padding-top: 1rem;
    }
    .conn_box5_main{
        padding-top: 3rem;
    }
    .conn_box5_main li{
        margin-bottom:2rem;
    }
    .conn_box5_main li img{
        width: 25%;
    }
    .conn_box5_main_title{
        font-size: 1.6rem;
        padding-top: 1rem;
    }
    .conn_box5_main_text1{
        font-size: 1.2rem;
        padding-top: 0.6rem;
    }
    .conn_box5_main_text2{
        font-size: 1.2rem;
        padding-top: 0.5rem;
    }
}