.index_aboutbj{background: url(../images/index_aboutbj.png) center top no-repeat;padding-bottom: 1rem;}


/*--------------------------about------------------------*/



.about_headtop{width: 55%;padding:2rem;}
.about_headtop h1{font-size: 2.4rem;color: #fff;}
.about_headtop p{color: #afb8c0;line-height: 32px;margin:2rem 0;}
.about_headtop b{color: #fff;font-size: 3rem;display: block;}
.about_headtop span{display: inline-block;color: #fff;font-size: 1rem;}

.about_headtop ul li{float: left;width: 31%;margin:1rem 0;padding:0 1%;}

.about_shijie{text-align: center;margin-top:6rem;background: #fff;}
.about_shijie p img{margin:1rem 0;}
.about_shijie h2{font-size: 2rem;margin:1rem 0;}
.about_shijie .h2_p{font-size: 1rem;padding: 0 1rem;}
.about_shijie p{}

@media screen and (max-width:1400px){
	.about_headtop{padding: 1rem 2rem;}
	.about_headtop p{margin:1rem 0;}
}
@media screen and (max-width:1200px){
	.about_headtop h1{font-size: 2rem;}
	.about_headtop p,.about_headtop span,.about_shijie .h2_p{font-size: 0.9rem;}
	.about_headtop b{font-size: 2.2rem;}
	.about_shijie{margin-top:3rem;}
	.about_shijie h2{font-size: 1.8rem;}
}
@media screen and (max-width:999px){
	.about_headtop h1{font-size: 1.8rem;}
	.about_headtop p,.about_headtop span,.about_shijie .h2_p{font-size: 0.85rem;}
	.about_headtop b{font-size: 2rem;}
	.about_shijie{margin-top:2rem;}
	.about_shijie h2{font-size: 1.6rem;}
}
@media screen and (max-width:768px){
	.index_aboutbj{padding-top: 1rem;}
	.about_headtop{width: 96%;padding:2%;}
	.about_tit h2{font-size:24px;}
	.about_tit{background-size:180px;padding-bottom:16px;margin: 10px 0;}
	.about_jd p,.about_text,.about_nr p{text-indent: 0;margin: 5px auto;line-height:24px;}
}
@media screen and (max-width:650px){
	.about_shijie{margin-top:0;}
	.about_headtop h1{font-size: 1.4rem;}
	.about_headtop b{font-size: 1.6rem;}
	.about_headtop p{}
}