.section_bg{
	width: 100%;
	height: 216px;
	background: url(../images/manual/section_bg.jpg) no-repeat center;
}

.sec_content{
	width: 1510px;
	padding: 50px 0;
}

.version_list{
	width: 700px;
	margin-top: 60px;
	margin-bottom: 60px;
}
.version{
	margin-bottom: 30px;
}
.version_cover{
	width: 248px;
	height: 337px;
	border: 6px solid #b4b4b4;
	border-radius: 6px;
}
.version_cover img{
	width: 100%;
	height: 100%;
}
.manual_info{
	width: 260px;
	height: 337px;
	overflow: auto;
}
.manual_info h4{
	font-size: 16px;
	margin: 12px 0;
}
.manual_info p{
	font-size: 14px;
	font-weight: bold;
}
.manual_list li{
	margin-top: 12px;
}
.manual_list li a{
	display: block;
	font-size: 14px;
	font-weight: bold;
	color: #434343;
	line-height: 16px;
}
.manual_list li a:hover{
	color: #b2b2b2;
}
.manual_list li i{
	display: block;
	font-weight: normal;
}
/*自定义滚动条样式*/
.manual_info::-webkit-scrollbar { /*滚动条整体部分*/
	width: 10px;
}
.manual_info::-webkit-scrollbar-thumb{ /*滚动条滑块*/
	border-radius: 5px;
	background: linear-gradient(to right,#9b9b9b 0%,#eee 60%,#9b9b9b 100%);
}
.manual_info::-webkit-scrollbar-track{ /*滚动条滑动轨道*/
	border-radius: 5px;
	background-color: #eee;
	box-shadow: 3px 3px 3px #ccc inset;
}
.manual_info::-webkit-scrollbar-button{ /*滚动条两端按钮*/
	display: none;
}


@media only screen and (max-width: 1600px){

.sec_content{
	width: 1180px;
	padding: 40px 0;
}

}