body{
	    background-color: #f5f9ff;
}
.banner_bg {
    height: 470px;
    margin-bottom: 40px;
    background: url(../images/2021nb_bg.jpg) no-repeat center;
}
.nbcon {
	margin-bottom: 10px;
}
.nbli_con{
	width: 1195px;
	background-color: #fff;
	margin-top: -25px;
}
.title{
	 background: url(../images/2021nb_title.png) no-repeat center;
	 height: 99px;
}
.title a{
	    text-align: center;
	    display: block;
	    line-height: 71px;
	    font-size: 36px;
	    font-weight: bold;
	    color: #fff;
}

.nb {
       margin-top: 15px;
overflow:hidden
}
.mb {
    margin-bottom: 20px;
}
.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;
}

.footer {
    background: #1f6be1;
}
@media (max-width: 1199px) {
	.banner_bg {
	    height: 18rem;
		margin-bottom: 0.4rem;
		background-size: 100%;
	}
	.title{height: 4rem;}
	.title a{
		line-height: 2.3rem;
		font-size: 1rem;
	}	 
	.module-main, .module-box{margin-right: 2%;margin-left: 2%;}
	.nbli_con{width: 100%;}
	.ndbb_li li{
		width: 18.8%;
		margin-right: 1%;
	}
	.ndbb_li li:nth-child(5n+0){margin-right: 2%;}
}
@media (max-width: 992px) {
	.banner_bg {
	    height: 12rem;
		margin-bottom: 0.4rem;
		background-size: 100%;
	}
	.title{height: 4rem;}
	.title a{
		line-height: 2.3rem;
		font-size: 1rem;
	}	 
	.module-main, .module-box{margin-right: 2%;margin-left: 2%;}
	.nbli_con{width: 100%;}
	.ndbb_li li{
		width: 31.3%;
		margin-right: 2%;
	}
	.ndbb_li li:nth-child(5n+0){margin-right: 2%;}
}
@media (max-width: 768px) {
	.banner_bg {
		height: 11rem;
		margin-bottom: 0.4rem;
		background-size: 100%;
	}
	.title{height: 4rem;}
	.title a{
		line-height: 2.3rem;
		font-size: 1rem;
	}	 
	.module-main, .module-box{margin-right: 2%;margin-left: 2%;}
	.nbli_con{width: 100%;}
	.ndbb_li li{
		width: 31.3%;
		margin-right: 2%;
	}
	.ndbb_li li:nth-child(5n+0){margin-right: 2%;}
}
@media (max-width: 640px) {
	
}
@media (max-width: 480px) {
	.banner_bg {
	    height: 6rem;
	    margin-bottom: 0.4rem;
	    background-size: 100%;
	}
	.title{height: 4rem;}
	.title a{
		line-height: 2.3rem;
		font-size: 1rem;
	}	    
	
		
	.module-main, .module-box{margin-right: 2%;margin-left: 2%;}
	
	.nbli_con{width: 100%;}
	.ndbb_li li{
		width: 48%;
		margin-right: 2%;
	}
	.ndbb_li li:nth-child(5n+0){margin-right: 2%;}
}