.product_header {
	margin: 0 auto;
	width:1100px;
}
.product_header .title {
	text-align: left;
	margin-top:30px;
	margin-bottom:15px;

	font-size:34px;
	
	line-height: 60px;
	position: relative;
}
.product_header .text {
	text-align: left;
	width:900px;

	font-size:20px;
	line-height: 30px;
}

.product_content {
	margin: 40px auto 10px auto;
	width:1000px;
	font-size:16px;
	line-height:30px;
	color:#666;
	font-family:"΢ÈíÑźÚ"
}
.product_content p {
	font-size:16px;
	line-height:28px;
	padding-bottom:12px;
}
.product_content .title {
	font-size:24px;
	line-height:38px;
	padding-top: 15px;
}
.product_content img {
	margin:10px auto 10px auto; 
	display:block;
}

.bottom_nav {
	margin: 70px 0 0 0;
	padding: 30px 0 40px;
	width:100%;
	background:#f6fafd;
}
.bottom_nav .btitle {
	margin: 0 auto 22px auto;
	color:#666;
	font-size:14px;
	line-height:28px;
	border-bottom: 1px solid #ccc;
	width:1000px;
	text-indent:4px;
}
.bottom_nav ul {
	margin:0 auto;
	padding:0;
	list-style-type:none;
	width:1000px;
}
.bottom_nav ul li {
	float:left;
	width:333px;
	line-height:46px;
	font-size:18px;
	text-indent:40px;
	color:#a00;
}

.banner1 {
    background: url(img/sb2.png) no-repeat center;
}

.fixed_nav {
	position:fixed;
	width:150px;
	height:342px;
	background:#f2f2f2;
	top:320px;
	left:100px;
}

.fixed_nav ul {
	padding:0;
	list-style-type:none;
	margin:15px;
}
.fixed_nav ul li {
	font-size:16px;
	line-height:38px;
	color:#a00;
}

.plookvideo {
	display:block;
	position: absolute;
	width:80px;
	height:24px;
	line-height: 24px;
	background:#f2f2f2;
	border-radius: 3px;
	font-size:14px;
	left: 230px;
	top: 22px;
	text-align:center;
	display:none;
}