@charset "utf-8";
/*==========@@HTML默认 开始@@==========*/
/*基本*/
body, div, dl, dt, dd, ul, ol, li,h1, h2, h3, h4, h5, h6, pre, code,form,fieldset, 
legend, input, button,textarea, p, blockquote, th, td { margin: 0; padding: 0;}
body{ color:#000; font-family: "Microsoft YaHei",BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif,"Segoe UI Symbol"; font-size:14px; background:#fff; -webkit-text-size-adjust:none; /*这个必须加上，在苹果手机上维持正常字体大小*/ }
div{ margin:0; padding:0; border:0; }
img{ margin:0; padding:0; border:0; }
img{ max-width:100%; vertical-align:middle; }
body{ background:url(../images/dnbj.png) no-repeat top center ; display:flex; width:100%; height:100vh; background-size:100% 100%; align-items: center; justify-content:center;align-content:center;} 
.wrap{ overflow:hidden; position:relative; width:100%; max-width:750px; margin:0 auto; background:url(../images/bjsj.png) no-repeat top center ; flex-direction:column ; display:flex; height:100%; align-items: center;}
.top {
	margin: 200px auto;
	height: 23%;
	display: flex;
	justify-content: center;
	width: 100%;
	}

.banner { display:flex; flex-direction:row ; align-items: center; height:54%;   }

.btn {
	margin: -630px auto;
	height: 8%;
	display: flex;
	justify-content: center;
	width: 100%;
	}