body, html {
    height: 100%;
    margin: 0;
    padding: 0;
}
 .header_title{
    list-style-type:none;
 }

 .header_title li{
    display: inline;
    margin-left: 8%;
    line-height: 70px;
 }
 .header_title li a{
    font-size: 18px;
    color: white;
    font-weight: bold;
    text-decoration: none;
 }
 .header_title li a:hover{
    text-decoration: underline;
    color: #20DAA9;
 }

 .header_logo{
    width: 30%;
 }
 .header_logo img{
    float: right;
    display: block;
    margin-top: 5px;
 }

 .header{
    display: flex;
    height: 92px;
    background-color: rgb(169 66 185);
 }

.banner{
   height: 600px;
   width: 100%;
   background-image: url('../img/service/1.jpeg');
   background-size: 100%;
   background-position: 50% 50%;
}
.banner div{
   font-size: 70px;
   color: #FFF;
   text-align: center;
   line-height: 600px;
}
.header_left{
   width: 30%;
   margin-left: 10%;
}
.header_left_info{
   margin-top: 20px;
   width: 457px;
   height: 105px;
   color:#CCC;
   display: flex;
}

.header_left_info_num{
   line-height: 100px;
    width: 20%;
    font-size: 67px;
    margin-left: 26px;
}
.header_left_info_word{
   font-weight: bold;
    width: 40%;
    line-height: 101px;
    font-size: 30px;
    margin-left: 20px
}
.header_left_info_circle{
   margin-left: 39px;
   text-align: center;
   width: 12%;
   height: 52%;
   background-color: #fff;
   border-radius: 50%;
   margin-top: 24px;
   background-image: url('https://student-server.oss-cn-beijing.aliyuncs.com/app_new_h5/static/6.png');
   background-repeat: no-repeat;
   background-size: 62%;
   background-position: 50% 50%;
}

.header_left .header_left_info:nth-child(1){
   background-color:rgb(169 66 185) ;
   color:#FFF;
}
/*
.header_left .header_left_info:nth-child(2):hover{
   background-color:#0A22EB ;
   color:#FFF;
}
.header_left .header_left_info:nth-child(3):hover{
   background-color:#0A22EB ;
   color:#FFF;
}
.header_left .header_left_info:nth-child(4):hover{
   background-color:#0A22EB ;
   color:#FFF;
}*/

.header_right{
   width: 70%;
   padding-left: 6%;
}
.header_right_box1{
   transition: all 1s;
   margin-top: -50px;
}
.header_right_box2{
   transition: all 1s;
   margin-top: -50px;
   display: none;
}
.header_right_box3{
   transition: all 1s;
   margin-top: -50px;
   display: none;
}
.header_right_box4{
   transition: all 1s;
   margin-top: -50px;
   display: none;
}
.header_right_box_title{
   font-size: 36px;
   font-weight: bold;
   margin-top: 50px;
}
.header_right_box_content{
   width: 90%;
   font-size: 22px;
   font-weight: 300;
   line-height: 36px;
}
.header_button{
   width: 100%;
}
.header_button button{
   width: 188px;
   height: 53px;
   margin-top: 20px;
   text-align: center;
   background-color: #20DAA9;
   border-radius: 10px;
   border: none;
   font-size: 16px;
   color:#fff;
   font-weight: bold;
}

.tab1{
   width: 361px;
   height: 80px;
   background-color: rgb(169 66 185);
   color: #FFF;
   font-size: 40px;
   font-weight: bold;
   line-height: 75px;
   border-radius: 50px 0 0 50px;
   text-align: center;
}
.tab2{
   width: 361px;
   height: 80px;
   background-color: #20DAA9;
   color: #FFF;
   font-size: 40px;
   font-weight: bold;
   line-height: 75px;
   text-align: center;
   margin-left: 1%;
}
.tab3{
   width: 361px;
   height: 80px;
   background-color: #20DAA9;
   color: #FFF;
   font-size: 40px;
   font-weight: bold;
   line-height: 75px;
   border-radius: 0 50px 50px 0;
   text-align: center;
   margin-left: 1%;
}
.tab4{
   width: 361px;
   height: 80px;
   background-color: rgb(169 66 185);
   color: #FFF;
   font-size: 40px;
   font-weight: bold;
   line-height: 75px;
   border-radius: 50px 0 0 50px;
   text-align: center;
}
.tab5{
   width: 361px;
   height: 80px;
   background-color: #20DAA9;
   color: #FFF;
   font-size: 40px;
   font-weight: bold;
   line-height: 75px;
   text-align: center;
   margin-left: 1%;
}
.tab6{
   width: 361px;
   height: 80px;
   background-color: #20DAA9;
   color: #FFF;
   font-size: 40px;
   font-weight: bold;
   line-height: 75px;
   border-radius: 0 50px 50px 0;
   text-align: center;
   margin-left: 1%;
}
.items_tab{
   display: flex;
   margin-top: 50px;
   margin-left: 20%;
}
.items_img2{
   display: none;
}
.items_img3{
   display: none;
}
.items_img5{
   display: none;
}
.items_img6{
   display: none;
}
.item_button{
   text-align: center;
   margin-top: 70px;
   margin-bottom: 70px;
}
.item_button button{
   border: none;
   width: 376px;
   height: 95px;
   background-color: rgb(169 66 185);
   border-radius: 10px;
   color:#fff;
   font-size: 32px;
   text-align: center;
   font-weight: bold;
}
.choose{
   height: 839px;
   width: 100%;
   background-color: #F7F8FC;
}
.choose_content{
   display: flex;
   margin-top: 100px;
}
.choose_content_info{
   width: 20%;
   text-align: -webkit-center;
}
.choose_content_info_circle{
   border-radius: 50%;
   background-color: rgb(169 66 185);
   width: 160px;
   height: 160px;
   transition: all 1s;
   background-size: 100%;
    background-position: 50% 50%;
}
.c1{
   background-image: url('../img/service/6.png');
}
.c2{
   background-image: url('../img/service/5.png');
}
.c3{
   background-image: url('../img/service/6.png');
}
.c4{
   background-image: url('../img/service/5.png');
}
.c1:hover{
   background-size: 120%;
}
.c2:hover{
   background-size: 120%;
}
.c3:hover{
   background-size: 120%;
}
.c4:hover{
   background-size: 120%;
}
.choose_content_info_circle_2{
   border-radius: 50%;
   background-color: #20DAA9;
   width: 160px;
   height: 160px;
   transition: all 1s;
   background-size: 100%;
    background-position: 50% 50%;
}

.choose_content_info_title{
   font-size: 40px;
   font-weight: bold;
   margin-top: 50px;
}
.choose_content_info_word{
   font-size: 20px;
    margin-top: 50px;
    width: 76%;
}
.contact{
   width: 100%;
}
.contact table{
   margin-left: 13%;
}
.contact tr td{
   font-size: 22px;
    padding-left: 37px;
    width: 12%;
    height: 100px;
}
.case_button{
   text-align: -webkit-center;
   margin-top: 50px;
}

.case_button button{
   border: none;
   color: #fff;
   background-color: rgb(169 66 185);
   width: 376px;
   height: 96px;
   font-size: 36px;
   font-weight: bold;
   border-radius: 15px;
}