/*内页内容开始*/
.bnews{background-image:url(../images/krbnews.jpg);}
.bproduct .content{background-image:url(../images/krbproduct01.png);}
.babout .content{background-image:url(../images/krbabout01.png);}
.bvideo .content{background-image:url(../images/krbvideo01.png);}
.bstrength .content{background-image:url(../images/krbstrength01.png);}
.bcertificate .content{background-image:url(../images/krbcertificate01.png);}
.bbrand .content{background-image:url(../images/krbbrand01.png);}
.bnews .content{background-image:url(../images/krbnews01.png);}
.bcontact .content{background-image:url(../images/krbcontact01.png);}


/*电脑版*/
@media screen and (min-width:768px){
.header .nav{font-size:18px;}
.header .nav a{margin-right:60px;}
}

@media screen and (max-width:1250px){
.header .nav{font-size:16px;}
.header .nav a{margin-right:50px;}
}



/*移动端*/
@media screen and (max-width: 767px){
.bproduct .content{background-image:url(../images/krbproduct02.png);background-position:35% center;}
.babout .content{background-image:url(../images/krbabout02.png);}
.bvideo .content{background-image:url(../images/krbvideo02.png);}
.bstrength .content{background-image:url(../images/krbstrength02.png);}
.bcertificate .content{background-image:url(../images/krbcertificate02.png);}
.bbrand .content{background-image:url(../images/krbbrand02.png);}
.bnews .content{background-image:url(../images/krbnews02.png);}
.bcontact .content{background-image:url(../images/krbcontact02.png);}
		
	
}