*{
    margin: 0 ;
    padding: 0;
}
html,body,.container{
    height: 100% ;
}
.container{
    padding-top: 40px;
    background: url("../img/login_bg.png") no-repeat;
    background-size: 100% 100% ;
    box-sizing: border-box;
}
.title{
    margin-left: 10px;
    font-size: 52px ;
    color: #fff;
}
.header{
    margin-top: 4%;
    display: flex ;
    justify-content: center ;
    align-items: center ;
}
.main{
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0 ;
    margin: auto auto;
    height: 450px;
    display: flex;
    align-items: center;
}
.left_img{
    position: absolute;
    left: 14%;
}
.left_img img{
    transform: scale(0.8, 0.8);
}
.right_login_k{
    margin: auto auto;
    right: 10% ;
    height: 450px;
    width: 432px;
    background-color: #fff;
    border-radius: 10px;
}
.right_login_k_header{
    border-radius: 10px 10px 0 0;
    height: 70px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 26px;
    color: #4974bd ;
    border: 1px solid #d2d2d2;
    letter-spacing: 2px;
}
.welcome_login{
    display: flex;
    align-items: center;
    height: 100% ;
    border-bottom: 2px solid #4974bd ;
    padding: 0 5px;
}
.login_form{
    padding: 50px 40px;
    box-sizing: border-box;
}
.admin{
    height: 46px;
    border-radius: 23px;
    background-color: #EEEEEE;
    display: flex;
    margin-bottom: 30px;
}
.admin_pic{
    width: 70px;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.icon-admin,.icon-suo1{
    color: #4974BD;
    font-size: 18px;
}
.username,.user_pwd{
    height: 100%;
    width: calc(100% - 70px) ;
    border: 0;
    outline: none;
    background-color: #eee;
    border-radius: 0 23px 23px 0;
}
.code_box{
    height: 46px;
    display: flex;
    margin-bottom: 30px;
    justify-content: space-between;
}
.code{
    width: 50%;
    border: 0;
    outline: none;
    background-color: #eee;
    border-radius: 23px;
    text-align: center;
}
.code_yz{
    display: flex;
    align-items: center;
    font-size: 26px ;
    color: #4974bd ;
}
.change_pic{
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #4974bd ;
}
.login_box{
    display: flex;
    justify-content: center;
}
.btn_login {
    width: 70%;
    height: 46px;
    background-color:  #4D84E6 ;
    font-size:  24px;
    letter-spacing: 5px;
    color: #fff;
    border-radius: 23px;
    outline: none;
    border: 0;
    cursor: pointer;
}
/*底部*/
.footer{
    position: absolute;
    bottom: 40px;
    font-size: 14px;
    color: #fff ;
    width: 100%;
    text-align: center;
    letter-spacing: 1px;
}

@media screen and (max-width: 1500px) {
    .left_img{
        left: 12%;
    }
    .right_login_k{
        right: 8%;
    }
}
@media screen and (max-width: 1440px) {
    .left_img{
        left: 9%;
    }
    .right_login_k{
        right: 7%;
    }
    .header,.left_img,.right_login_k{
        transform: scale(0.95,0.95);
    }
}
@media screen and (max-width: 1366px) {
    .left_img{
        left: 8%;
    }
    .right_login_k{
        right: 6%;
    }
    .container{
        padding-top: 30px;
    }
    .header,.left_img,.right_login_k{
        transform: scale(0.90,0.90);
    }
}
@media screen and (max-width: 1280px) {
    .left_img{
        left: 7%;
    }
    .right_login_k{
        right: 5%;
    }
    .container{
        padding-top: 20px;
    }
    .header,.left_img,.right_login_k{
        transform: scale(0.85,0.85);
    }
}
@media screen and (max-width: 1200px) {
    .left_img{
        left: 6%;
    }
    .right_login_k{
        right: 4%;
    }
    .header,.left_img,.right_login_k{
        transform: scale(0.80,0.80);
    }
}
@media screen and (max-width: 1120px) {
    .header,.left_img,.right_login_k{
        transform: scale(0.75,0.75);
    }
}