.content_bt{
	float: left;
	width: 40%;
}
.bt_left{
	float: none;
}
.bt_eg{
	float: none;
	margin-top: 80px;
}
.bt_left_img img{
	width:60% ;
	margin-top: 80px;
}

/*服务内容*/
.servicebox{
	float: right;
	width: 55%;
}
.service_list{
	margin-top: 80px;
}
.service_list h3{
	font-weight: 100;
	font-family: myFont;
	margin-bottom: 40px;
	color: #333;
}
.service_line{
	width: 200px;
	height: 1px;
	background: #666;
	margin-bottom: 40px;
}
.service_list p{
	color: #555;
	line-height: 1.6em;
	margin-top: 10px;
}
@media screen and (max-width: 960px){
	.bt_left_img img{
		width: 80%;
		transition: all ease 0.6s;
	}
}
@media screen and (max-width: 540px){
	.content_bt{
		float: none;
		width: 100%;
	}
	.bt_left_img img{
		width: 60%;
	}
	.servicebox{
		width: 100%;
	}
}