body {
	font-family: "Microsoft YaHei";
	min-width: 1200px;
	max-width: 1920px;
	margin: 0 auto;
	background: url("/front/zt/2021/jd100/image/fm.jpg") top center
		no-repeat;
}

.bt-bg {
	min-width: 1200px;
	max-width: 1920px;
	margin-top: 700px;
	padding-top: 30px;
	min-height: 100px;
	padding-bottom:30px;
	background-color: #DA0000;
	text-align: center;
	min-height: calc(100vh - 760px);
}

.bt {
	font-size: 30px;
	background-color: eccc54;
	padding: 10px 20px;
	color: #e70000;
	font-weight: bold;
	text-decoration: none;
	box-shadow: 0 12px 16px 0 rgba(0, 0, 0, 0.24), 0 17px 50px 0
		rgba(0, 0, 0, 0.19);
	border-radius: 5px;
}