@charset "utf-8";
.b_title{
	line-height: 30px;
	font-size: 30px;
	padding-top: 55px;
	margin-bottom: 65px;
	font-weight: bold;
	text-align: center;
	position: relative;
}
.b_title:after{
	position: absolute;
	bottom: -10px;
	width: 20px;
	height: 2px;
	background: #b7282c;
	left: 50%;
	-ms-transform: translateX(-50%);
	-o-transform: translateX(-50%);
	-moz-transform: translateX(-50%);
	-webkit-transform: translateX(-50%);
	transform: translateX(-50%);
	content: "";
}
.b1_box{
	padding-bottom: 20px;
}
.b1_box .b1_nav{
	margin-bottom: 50px;
	overflow: hidden;
	position: relative;
	width: 100%;
	color:#fff;
}
.b1_box .b1_nav .b1_nav_left{
	float: left;
	position: relative;
	width: 40%;
}
.b1_box .b1_nav .b1_nav_right{
	float: right;
	position: relative;
	width: 57%;
}
.b1_box .b1_nav:nth-child(2n) .b1_nav_left{
	float: right;
}
.b1_box .b1_nav:nth-child(2n) .b1_nav_right{
	float: left;
}
.b1_box .b1_nav .b1_img{
	width: 100%;
	border-radius: 15px;
}
.b1_box .b1_nav .b1_icon{
	position: absolute;
	top: 20px;
	left: 40px;
	z-index: 1;
	width: 78px;
	height: 78px;
	background: #fff;
	border-radius: 50%;
}
.b1_box .b1_nav .b1_txt{
	position: absolute;
	bottom: 40px;
	left: 40px;
	z-index: 1;
	right: 40px;
}
.b1_box .b1_nav .b1_nav_title{
	font-size: 30px;
	line-height: 30px;
}
.b1_box .b1_nav .b1_nav_content{
	width: 68%;
	margin-top: 20px;
}
.b1_box .b1_nav .b1_nav_left .b1_nav_content{
	width: 80% !important;
}

.b1_box .b1_nav .b1_nav_right .b1_nav_content{
	width: 54% !important;
}
.b1_box .b1_nav .b1_nav_btn{
	font-size: 16px;
	line-height: 50px;
	width: 150px;
	height: 50px;
	text-align: center;
	color: #fff;
	border:1px solid #fff;
	box-sizing: border-box;
	display: block;
	border-radius: 40px;
	margin-top: 35px;
}
.b1_box .b1_nav .b1_nav_btn:hover{
    background-color:#b7282c;
	/*color:#b7282c;*/
	border:1px solid #b7282c;
}
/*响应式适配*/
@media screen and (max-width: 1861px) {
	
}
@media screen and (max-width: 1681px) {
	
}
@media screen and (max-width: 1450px) {
	.b1_box .b1_nav{
		margin-bottom: 40px;
	}
}
@media screen and (max-width: 1335px) {
	.b1_box .b1_nav{
		margin-bottom: 32px;
	}
}
@media screen and (max-width: 1200px) {
	
}
@media screen and (max-width: 1100px) {

}
@media screen and (max-width: 1000px) {

}
@media screen and (max-width: 768px) {
	.b_title {
	    line-height: 24px;
	    font-size: 24px;
		padding-top: 20px;
		margin-bottom: 25px;
	}
	.b1_box{
		padding-bottom: 0;
	}
	.b1_box .b1_nav{
		margin-bottom: 0 ;
	}
	.b1_box .b1_nav:first-child{
		margin-bottom: 30px;
	}
	.b1_box .b1_nav .b1_nav_btn {
	    font-size: 12px;
	    line-height: 30px;
	    width: 80px;
	    height: 30px;
	    margin-top: 16px;
	    color: #333;
    	border: 1px solid #333;
	}
	.b1_box .b1_nav .b1_txt {
	    bottom: 10px;
	    left: 20px;
	    right: 20px;
	    position: initial;
	    color:#333;
	}
	.b1_box .b1_nav .b1_icon {
	    top: 20px;
	    left: 20px;
	    width: 30px;
	    height: 30px;
	}
	.b1_box .b1_nav .b1_icon .icon{
		max-height: 60%;
		max-width: 60%;
	}
	.b1_box .b1_nav .b1_nav_title {
	    font-size: 20px;
	    line-height: 20px;
	    padding-top: 16px;
	}
	.b1_box .b1_nav .b1_nav_content {
	    width: 100%;
	    margin-top: 16px;
	    font-size: 14px;
	    line-height: 24px;
	}
	.b1_box .b1_nav .b1_nav_left{
		float: initial !important;
		width: 100% !important;
		margin-bottom: 30px;
	}
	.b1_box .b1_nav .b1_nav_right{
		float: initial !important;
		width: 100% !important;
		margin-bottom: 30px;
	}
	.b1_box .b1_nav .b1_nav_left .b1_nav_content {
	    width: 100% !important;
	}
	.b1_box .b1_nav .b1_nav_right .b1_nav_content {
	    width: 100% !important;
	}
}
@media screen and (max-width: 414px) {
	
}