*{
    margin: 0;
    padding: 0;
}
/* 取消网页光标展示 */
div, span, p ,textarea{
    caret-color: transparent;
    cursor:pointer
}
a{
    text-decoration:none;
    color:#333
}
/* img{
    width: 100%;
} */
/* 设置整体宽高 */
body{
    width: 100vw;
    height: 100vh;
    overflow-x: hidden;
    background-color: #F1F4F5;
}
/* 头部 */
.header{
    width: 100vw;
    height: 85px;
    display: flex;
}
.header>.tabImg{
    width: 34%;
    background-color: #408CE0;
}
.header>.tabImg img{
    position: relative;
    top: 10px;
    left: 260px;
}
.header>.tabs{
    width: 66%;
    line-height: 85px;
    display: flex;
    justify-content: space-evenly;
}
.header>.tabs .spanTab{
    cursor:pointer
}
.header>.tabs .spanTab:hover{
    color: #408CE0;
    border-bottom: solid 3px #408CE0;
}

/* 背景图 */
.backG{
    width: 100vw;
    height: 420px;
    background: url(../img/back.png) center center/cover no-repeat fixed;
}
.backBox{
    width: 640px;
    height: 200px;
    /* background-color: aqua; */
    margin: 0 auto;
    position: relative;
    top: 80px;
}
.backBox>.title{
    display: block;
    width: 100%;
    font-size: 43px;
    text-align: center;
    color: #fff;
}
.backBox>.subtitle{
    width: 100%;
    font-size: 20px;
    text-align: center;
    margin-top: 20px;
    color: #fff;
}
.backBox>.learnMore{
    width: 100%;
    text-align: center;
    margin-top: 30px;
}
.backBox>.learnMore .learnMoreBtn{
    display: inline-block;
    width: 100px;
    height: 30px;
    background-color: #fff;
    color: #408CE0;
    font-size: 14px;
    line-height: 29px;
}
.backBox>.learnMore .learnMoreBtn:hover{
    color: #fff;
    background-color: #408CE0;
    opacity:0.7;
}

/* 主体 */
.main>.imgs{
    position: relative;
    top: -80px;
}
.main>.imgs .imgsBox{
    width: 80%;
    margin: 0 auto;
    display: flex;
    justify-content: space-evenly;
}
/* 企业定位 */
.corporate>.corporateBack{
    width: 100vw;
    height: 440px;
    background-image: url(../img/corporatePositioning.png);
    background-size: 100% 100%;
}
.corporateTitle{
    width: 80%;
    margin: 0 auto;
    text-align: center;
    padding-top: 40px;
    color: #fff;
}
.corporateText{
    width: 80%;
    margin: 0 auto;
    color: #fff;
}
/* 宗旨理念 */
.corporate>.missionConcept{
    width: 100vw;
    height: 440px;
    background-color: #3B8AE3;
}
/* 合作理念 */
.corporate>.cooperationConce{
    width: 100vw;
    height: 400px;
}
.cooperationConceTitle{
    width: 80%;
    margin: 0 auto;
    text-align: center;
    padding-top: 40px;
    color: #333;
    font-weight: normal;
}
.cooperationConce .img{
    width: 300px;
    height: 80px;
    margin-top:20px;
    margin-left:20px
}
/* 底部 */
footer{
    width: 100vw;
    height: 300px;
    background-color: #3B8AE3;
    display: flex;
}
footer>.logo,.us{
    width: 50%;
}

/* 备案编号 */
.filingNumber{
    width: 100vw;
    height: 60px;
    background-color: #306EDB;
    text-align: center;
    line-height: 60px;
    color: #fff;
}

/* 服务项目 业务范围 */
.businessScope{
    width: 100vw;
    height: 490px;
    /* background-color: #306EDB; */
}
.businessScopeTitle{
    width: 80%;
    margin:0 auto;
    text-align: center;
    color:#333;
    padding-top: 40px;
}

.businessScopeBox{
    display: flex;
    justify-content: center;
    margin-top: 40px;
    color: #033333;
}

/* 服务支持 */
.serviceSupport{
    width: 100vw;
    height: 500px;
    background-image: url(../img/serviceSupport.png);
    background-size: 100% 100%;
}
.serviceSupportBox{
    display: flex;
    margin-top: 50px;
}

/* 服务项目 */
.serviceItems{
    width: 100vw;
    /* height: 500px; */
}
.serviceItemsBox{
    width: 70%;
    margin: 40px auto
}
.serviceItemsBox_content{
    display: flex;
    align-items: center;
    
}

/* 项目案例 */
.projectExample{
    width: 100vw;
    /* height: 450px; */
    /* background-color: #306EDB; */
}
.projectExampleImgs{
    width: 100%;
    height: 380px;
    margin-top:40px;
    display: flex;
    justify-content: space-between;
}
.projectExampleImgs_img{
    width: 34%;
    position: relative;
    /* background-color: #408CE0; */
}
.projectExampleImgs_text{
    position: absolute;
    top: 44%;
    left: 33%;
    font-size: 22px;
    color: #fff;
}

/* 愿景 */
.visionPlanning{
    width: 100vw;
    height: 480px;
    margin-top: 80px;
}
.visionPlanning_text{
    width: 80%;
    height: 100%;
    background-color: #408CE0;
}
.visionPlanning_text .visionPlanningTitle{
    padding-top: 70px;
    padding-left: 220px;
    color: #fff;
    font-size: 22px;
}
.visionPlanning_text .visionPlanningSpan{
    width: 60%;
    margin: 60px auto;
    line-height: 35px;
    color: #fff;
}
/* .visionPlanning_img{
    width: 300px;
    height: 200px;
    background-color: aqua;
} */

/* 联系我们 */
.contactUs{
    width: 100vw;
    /* height: 460px; */
}
.contactUsImg{
    width: 80%;
    height: 340px;
    /* background-color: aquamarine; */
    margin:40px auto;
    border: dashed 2px #ccc;
}
.formBox{
    width: 80%;
    margin:20px auto;
    display: flex;
    /* background-color: #f8f8f8; */
}
.formBox_contactUs{
    width: 50%;
}
.formBox_form{
    width: 50%;
}
.btn{
    width: 80px;
    height: 40px;
    border: none;
    color: #fff;
    margin-top: 30px;
}
.submit{
    background-color: #3B8AE3;
}
.reset{
    background-color: #bbb;
}
.input{
    width: 290px;
    height: 40px;
    margin-top: 20px;
    border: none;
    outline:medium;
    caret-color: #3B8AE3;
    text-indent: 1rem;
    background-color: #fff;
    color: #333;
    
}
.textarea{
    padding-top:10px;
    resize:none
}
.douyinLogo{
    width: 100vw;
    height: 200px;
    background-color: #fff;
}