/*头部 */
.boday_top_1 {

	/*background: #1682d4;*/
	background: url(../img/banner_header_bj-all-zx-blue.png);
	line-height: 72px;
	border-bottom: solid #f3f3f3 1px;
	color: #fff;
	font-size: 14px;
	font-weight: bolder;
	padding:0px;



}

.boday_top_2 {
	line-height: 72px;
	color: #4d4446;
}

.today_top_btn {
	background-color: #0480d7;
	border-radius: 10px;
	font-size: 1.5em;
}

 
#main_center{
	flex-grow: 1;
}
.boday_top_2 h2{
	font-size: 26px;
	text-align: left;
	font-weight: normal;
}

@media only screen and (max-width : 750px) {
	.boday_top_1 h1 {
		font-size: 24px;
	}
	.boday_top_2 h2 {
		font-size: 20px;
	}
	.boday_top_2 button {
		font-size: 16px;
	}
	 
	#main_center  {
		width: 100%;
		
	}
 
}

/*主体 */
.body_main{
	background: url(../img/banner_system_bj-all-zx-blue.png) ;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	min-height: 100vh;
}

/*尾部 */
.footer {
	background: #1682d4;
	border-top: #818180;
	color: #fff;
	margin-top: 30px;
	width: 100%;
	box-sizing: border-box;
	-webkit-box-sizing: border-box;
  }



.boday_top_1::after {
	content: '';
	height: 6px;
	width: 100%;
	background: url(../img/banner_header_line_bj-all-zx-blue.png) top center;
	display: block;
}