.bj_img{
    width: 100%;
    height: 600px;
    background: url("../img/banner.png")  no-repeat center top;
    background-size: 100% 600px;
    overflow: hidden;
}
.search{
    width: 802px;
    height: 80px;
    background: #F0F4F7;
    margin: 300px auto 0 auto;
    opacity: 0.8;
    display: flex;
   
    align-items:center;
}
.search .search_input{
    width: 560px;
    height: 48px;
    margin-left: 34px;
    border:1px solid #999999  
}
.search_input input{
    width: 540px;
    height: 46px;
    border: none;
    margin-left: 20px;
    outline:none;
    font-size: 16px;
}
.search .search_btn{
    width: 140px;
    height: 48px;
    margin-left: 42px;

}
.search_btn input{
    display: inline-block;
    width: 140px;
    height: 48px;
    line-height: 48px;
    text-align: center;
    font-size: 16px;
    color: #ffffff;
    background: #E70044;
    border: none;
    outline: none;
    z-index: 999;
}