@charset "utf-8";
.base_title{
	text-align: center;
	font-size: 48px;
	font-weight: bold;
	color: #000;
	line-height: 48px;
}
.sb1_box{
	width: 100%;
	padding-top: 70px;
	padding-bottom: 90px;
}
.sb1_box .sb1_inner{
	position: relative;
	margin-top: 60px;
}
.sb1_box .sb1_content{
	right: 9%;
	position: absolute;
	top: 50%;
	-webkit-transform: translateY(-50%);
	transform: translateY(-50%);
	z-index: 10;
	color:#000;
}
.sb1_box .img{
	border-radius: 10px;
	width: 100%;
}
.sb1_box .sb1_title{
	font-size: 24px;
	line-height: 24px;
	font-weight: bold;
}
.sb1_box .sb1_txt{
	margin-top: 30px;
	font-size: 16px;
	line-height: 30px;
}
.sb1_box .sb1_txt b{
	font-size: 24px;
}
.sb2_box{
	width: 100%;
	padding-top: 70px;
	padding-bottom: 70px;
	background: #fafafa;
}
.sb2_box .sb2_inner{
	margin-top: 75px;
}
.sb2_box .sb2_nav{
	width: calc((100% - 120px) / 4);
	background: #fff;
	border-radius: 50px;
	height: 330px;
	text-align: center;
	margin-right: 40px;
	margin-bottom: 40px;
}
.sb2_box .sb2_nav:nth-child(4n){
	margin-right: 0;
}
.sb2_box .sb2_nav .sb2_nav_img{
	height: 112px;
}
.sb2_box .sb2_nav .sb2_nav_img .img{
	margin: auto;
}
.sb2_box .sb2_nav .sb2_nav_title{
	color:#000;
	font-size: 24px;
	line-height: 24px;
}
.sb2_box .sb2_nav:hover .sb2_nav_title{
	color:#c30d23;
}
.sb2_box .sb2_nav .sb2_nav_subtitle{
	color:#666666;
	font-size: 16px;
	line-height: 16px;
	margin-top: 10px;
}
.sb3_box{
	width: 100%;
	padding-top: 90px;
	padding-bottom: 90px;
}
.sb3_box .img{
	border-radius: 20px;
	width: 100%;
}
.sb3_box .sb3_inner{
	position: relative;
}
.sb3_box .sb3_content{
	width: 100%;
	position: absolute;
	text-align: center;
	top: 20%;
	z-index: 10;
	color:#fff;
}
.sb3_box .sb3_title{
	font-size: 24px;
	line-height: 24px;
}
.sb3_box .sb3_subtitle{
	margin-top: 20px;
	font-size: 36px;
	line-height: 36px;
}
.sb3_box .sb3_btn{
	width: 166px;
	height: 54px;
	text-align: center;
	line-height: 54px;
	color:#fff;
	background: #bc192e;
	border-radius: 8px;
	display: block;
	margin: auto;
	margin-top: 40px;
}
.sb3_box .sb3_btn:hover{
	background: #e2253e;
}
/*响应式适配*/

@media screen and (max-width: 1861px) {
	
}
@media screen and (max-width: 1681px) {
	
}
@media screen and (max-width: 1450px) {
	.base_title,
	.sb3_box .sb3_subtitle{
		font-size: 30px;
		line-height: 30px;
	}
	.sb1_box .sb1_txt{
		margin-top: 20px;
		font-size: 14px;
		line-height: 26px;
	}
	.sb1_box .sb1_title ,
	.sb1_box .sb1_txt b,
	.sb2_box .sb2_nav .sb2_nav_title,
	.sb3_box .sb3_title{
	    font-size: 20px;
	    line-height: 20px;
	}
	.sb2_box .sb2_nav .sb2_nav_img .img{
		width: 50px;
	}
	.sb2_box .sb2_nav {
	    width: calc((100% - 60px) / 4);
	    border-radius: 20px;
	    height: 300px;
	    margin-right: 20px;
	    margin-bottom: 20px;
	}
	.sb2_box .sb2_nav .sb2_nav_subtitle{
		font-size: 14px;
		line-height: 14px;
	}
}
@media screen and (max-width: 1335px) {
	
}
@media screen and (max-width: 1200px) {
	
}
@media screen and (max-width: 1100px) {

}
@media screen and (max-width: 1000px) {
	
}
@media screen and (max-width: 768px) {
	
}
@media screen and (max-width: 500px) {
	.sb1_box {
	    padding-top: 20px;
	    padding-bottom: 20px;
	}
	.sb1_box .sb1_inner{
		margin-top: 10px;
	}
	.base_title, .sb3_box .sb3_subtitle {
	    font-size: 18px;
	    line-height: 18px;
	}
	.sb1_box .sb1_content{
		position: initial;
		-webkit-transform: initial;
		transform: initial;
		margin-top: 10px;
	}
	.sb1_box .sb1_title, .sb1_box .sb1_txt b, .sb2_box .sb2_nav .sb2_nav_title, .sb3_box .sb3_title {
	    font-size: 16px;
	    line-height: 16px;
	}
	.sb1_box .sb1_txt {
	    margin-top: 10px;
	    font-size: 12px;
	    line-height: 18px;
	}
	.sb1_box .sb1_txt b {
	    font-size: 14px;
	}
	.sb2_box {
	    width: 100%;
	    padding-top: 20px;
	    padding-bottom: 20px;
	}
	.sb2_box .sb2_inner {
	    margin-top: 10px;
	}
	
	.sb2_box .sb2_nav {
	    width: calc((100% - 30px) / 4);
	    border-radius: 10px;
	    height: auto;
	    margin-right: 10px;
	    margin-bottom: 10px;
        -o-align-items:initial;
	    -moz-align-items: initial;
	    -webkit-align-items: initial;
	    -ms-align-items: initial;
	    align-items:initial;
	    padding: 20px 0;
	}
	
	.sb2_box .sb2_nav .sb2_nav_img{
		height: 26px;
		width: 26px;
		margin: auto;
		margin-bottom: 16px;
	}
	.sb2_box .sb2_nav .sb2_nav_img .img {
	    max-width: 100%;
	    max-height: 100%;
	    width: auto;
	}
	.sb2_box .sb2_nav .sb2_nav_title {
	    font-size: 14px;
	    line-height: 14px;
	}
	.sb2_box .sb2_nav .sb2_nav_subtitle {
	    line-height: 18px;
	    font-size: 12px;
	}
	.sb3_box .sb3_title {
	    font-size: 12px;
	    line-height: 18px;
	}
	.sb3_box .sb3_subtitle {
	    font-size: 16px;
	    line-height: 16px;
	    margin-top: 10px;
	}
	.sb3_box {
	    padding-top: 20px;
	    padding-bottom: 20px;
	}
	.sb3_box .sb3_btn {
	    width: 82px;
	    height: 30px;
	    line-height: 30px;
	    margin-top: 10px;
	    font-size: 12px;
	}
	.sb3_box .sb3_content{
		top: 50%;
		-webkit-transform: translateY(-50%);
		transform: translateY(-50%);
	}
}