.yuyue_main{background:url(../images/yuyue/O02.jpg) no-repeat;background-size:100% 100%;height:890px;width:100%;display:flex; justify-content: center; align-items: center;}
.yuyue_content{width:675px;margin:0 auto;overflow:hidden;background:#fff;padding-top:45px;padding-bottom:45px;}
.yuyue_title{text-align:center;color:#000000;font-size:38px;font-family:"SourceHanSerifCN"}
.yuyue_title::after{display:block;width:58px;height:3px;background:#000000;content:"";margin:0 auto;margin-top:19px;}
.yuyue_name{width:530px;margin:0 auto;overflow:hidden;}
.yuyue_input_name input{width:100%;border:0px;border-bottom:2px solid #b2b2b2;height:40px;line-height:40px;font-size:18px;color:#acacac;margin-top:30px;}
.yuyue_input_name input::placeholder{color:#acacac;font-family:Alibaba;}
.yuyue_textbox_title{color:#acacac;font-size:18px;padding-top:30px;}
.yuyue_textbox_content{padding-top:10px;}
.yuyue_textbox_content textarea{width:504px;height:77px;border:2px solid #c0c0c0;padding:10px;}
.yuyue_submit{margin-top:30px;overflow:hidden;width:100%;}
.yuyue_submit input{height:60px;border:0px;background:#00adef;color:#ffffff;width:100%;font-size:18px;cursor:pointer;}
.yuyue_dibu_title{color:#acacac;font-size:13px;line-height:1.6;text-align:center;padding-top:30px;}

@media only screen and (min-height:850px)
{
    .yuyue_main{height:calc(100vh - 126px);}
}
@media (max-width: 640px)
{
    .yuyue_main{height:700px;}
    .yuyue_content{width:95%;}
    .yuyue_title{font-size:24px;}
    .yuyue_name{width:78.5%}
    .yuyue_textbox_content textarea{width:calc(100% - 24px)}
    .yuyue_dibu_title br{display:none;}
    .yuyue_title::after{height:1px;margin-top:10px;}
    .yuyue_input_name input{font-size:14px;height: 30px;line-height: 30px;}
    .yuyue_textbox_title{font-size:14px;}
    .yuyue_submit input{height:40px;font-size:14px;}
    .yuyue_dibu_title{padding-top:10px;}
}