.banner_bg{
	height: 419px;
	margin-bottom: 40px;
	background: url(../images/2021top_bg.jpg) no-repeat center;
}
.banner_bg img{
	/* float: right; */
	padding-top: 3%;
}
/* 18年的 */
.ndbb_18{
	height: 419px;
	margin-bottom: 40px;
	background: url(../images/2018nb_top.jpg) no-repeat center;
	position: relative;
}
.ndbb_18 a{
	position: absolute;
	top: 5%;
	left: 17%;
}
.ndbb_18 p{
	/* position: absolute;
	    top: 41%;
	    left: 19%; */
		padding-top: 10%;
}
.ndbb_17{
	height: 419px;
	margin-bottom: 40px;
	background: url(../images/2017_top.jpg) no-repeat center;
	position: relative;
}
.ndbb_17 a{
	position: absolute;
	top: 5%;
	left: 17%;
}
.ndbb_17 p{
	/* position: absolute;
	    top: 41%;
	    left: 19%; */
		padding-top: 10%;
}
/* 18年的 */
.tab-brief .hd{
	border-bottom: none;
}
.tab-brief .hd li:after{
	background: none;
}
.jczw_li li{
	width: 50%;
	margin-right: 0px!important;
}


.tab-brief .hd li a{
	    text-align: center;
	    display: block;
		font-size: 48px;
	    background: #f0f0f0;
	    color: #a5a5a5;
	    line-height: 1.9
}
.tab-brief .hd li.on a{
	text-align: center;
	display: block;
	font-size: 48px;
	background: #175eb8;
	color: #fff;
	line-height: 1.9
}
.banner_nb{float: left;margin-bottom: 20px;width: 100%;}
.banner_nb .li01{float: left;width: 49%;}
.banner_nb .li02{float: right;width: 49%;}
.bmbb {
    margin-bottom: 40px;
}

.nb{
	height: 57px;
	background: #dadada;
}
.ndbb_list li{width: 33.333%;margin-right: 0px!important;}
.ndbb_list li a{
	text-align: center;
	display: block;
	font-size: 24px!important;
	background: #f0f0f0;
	color: #a5a5a5;
	line-height: 2.4!important;
}
.ndbb_list li.on a{
	font-size: 24px!important;
	text-align: center;
	display: block;
	background: #175eb8;
	color: #fff;
	line-height: 2.4!important;
}
.ndbb_li li{
	padding-top: 6px;
	padding-bottom: 6px;
	overflow: hidden;
	float: left;
	margin-right: 10px;
	width: 19.3%;
	line-height: 2.87;
}
.ndbb_li li:nth-child(5n+0){margin-right: 0px;}
.ndbb_li li a{
	text-align: center;
	display: block;
	background: #f0f0f0;
}



@media (max-width: 1199px) {
	.ndbb_li li{width: 19.18%;}
	.banner_bg img{height: 6rem;}
	
}
@media (max-width: 992px) {
	.banner_bg{
			height: 11em;
			width: 100%;
			background-size: 100%;
			margin-bottom: 4%;
		}
		.banner_bg img{height: 2rem; margin-left: 9em;    padding-top: 0.5%;}
   
		.ndbb_list li{
			/* width: 52%; */
			width: auto;
		}
		.tab-brief .hd li.on a{
			font-size: 1.67em!important;
			    padding: 0 10px
		}
		.ndbb_list li.on a{
			font-size: 1.67em!important;
			padding: 0 10px
		}
		
		.ndbb_li li{
			width: 30%;
			margin: 0 1.5%;
		}
	
}

@media (max-width: 768px) {
	.banner_bg{
		height: 11em;
		width: 100%;
		background-size: 100%;
		margin-bottom: 4%;
	}
	.banner_bg img{    height: 2rem;
	margin-left: 6em;    padding-top: 1%;}
	.ndbb_list li{
		width: auto;
	}
	.tab-brief .hd li.on a{
		font-size: 1.67em!important;
		    padding: 0 10px
	}
	.ndbb_list li.on a{
		font-size: 1.67em!important;
		padding: 0 10px
	}
	
	.ndbb_li li{
		width: 30%;
		margin: 0 1.5%;
	}
}
@media (max-width: 640px) {
	.banner_bg{
		height: 6em;
		width: 100%;
		background-size: 100%;
		margin-bottom: 4%;
	}
	.banner_bg img{height: 4rem;}
	.ndbb_18{
		height: 14em;
		width: 100%;
		margin-bottom: 1rem;
		background: url(../images/2018nb_top.jpg) no-repeat right 38% bottom;
	}
	.ndbb_18 a{left: 7%;}
	.ndbb_18 a img{
		width: 12rem;
	}
	.ndbb_18 p{
		padding-top: 14%;
		width: 86%;
	}
	.ndbb_17{
		height: 17em;
		width: 100%;
		margin-bottom: 1rem;
		background: url(../images/2017_top.jpg) no-repeat right 38% bottom;
	}
	.ndbb_17 a{left: 7%;}
	.ndbb_17 a img{
		width: 12rem;
	}
	.ndbb_17 p{
		padding-top: 14%;
		width: 86%;
	}
	.ndbb_list li{
		/* width: 52%; */
		width: auto;
	}
	.tab-brief .hd li.on a{
		font-size: 1.67em!important;
		    padding: 0 10px
	}
	.ndbb_list li.on a{
		font-size: 1.67em!important;
		padding: 0 10px
	}
	/* .ndbb_li li{
		width: 22%;
	}
	.ndbb_li li:nth-child(4n+1){
		margin-left: 9px;
	}
	.ndbb_li li:nth-child(4n+0){
		margin-right: 0px;
	}
	.ndbb_li li:nth-child(5n+0){margin-right:14px} */
	.ndbb_li li{
		width: 30%;
		margin: 0 1.5%;
	}
}
@media (max-width: 480px) {
	.banner_bg{
		height: 6em;
		width: 100%;
		background-size: 100%;
		margin-bottom: 4%;
	}
	.banner_bg img{height: 1.5rem;
    margin-left: 2em;padding-top: 0%;}
	.ndbb_18{
		height: 10em;
		width: 100%;
		margin-bottom: 1rem;
		background: url(../images/2018nb_top.jpg) no-repeat right 38% bottom;
	}
	.ndbb_18 a{left: 7%;}
	.ndbb_18 a img{
		width: 8rem;
	}
	.ndbb_18 p{
		padding-top: 14%;
		width: 86%;
	}
	.ndbb_17{
		height: 11em;
		width: 100%;
		margin-bottom: 1rem;
		background: url(../images/2017_top.jpg) no-repeat right 38% bottom;
	}
	.ndbb_17 a{left: 7%;}
	.ndbb_17 a img{
		width: 8rem;
	}
	.ndbb_17 p{
		padding-top: 14%;
		width: 86%;
	}
	.ndbb_list li{
		/* width: 52%; */
		width: auto;
	}
	.tab-brief .hd li.on a{
		font-size: 1.67em!important;
		    padding: 0 10px
	}
	.ndbb_list li.on a{
		font-size: 1.67em!important;
		padding: 0 10px
	}
	/* .ndbb_li li{
		width: 21%;
	}
	.ndbb_li li:nth-child(4n+1){
		margin-left: 9px;
	}
	.ndbb_li li:nth-child(4n+0){
		margin-right: 0px;
	} */
	/* .ndbb_li li:nth-child(5n+0){margin-right:14px} */
	.banner_nb .li01{width: 100%;}
	.banner_nb .li02{width: 100%;}
	.ndbb_li li{
		width: 30%;
		margin: 0 1.5%;
	}
	.ndbb_li li:nth-child(5n+0){
		margin-right: 1.5%;
	}
	    
	.ndbb_li li a{
		font-size: 93%;
	}
	.yqkf li{
		width: 48%;
	}
	.yqkf li:nth-child(odd){
		float: left;
		margin-left: 1%;
		margin-right: 0px;
	}/* 奇数 */
	.yqkf li:nth-child(even){
		float: right;
		margin-right: 1%;
	}/* 偶数 */
}