/* CSS Document */
body {
	background: #313131;
	color: #fff;
}
#header{
	width:900px;
	margin:38px auto 40px;
}
#logo{
	float:left;
}
#online{
	position:fixed;
	top:100px;
	right:0;
}
#header_title {
	float:left;
	font-size:36px;
	margin-left:40px;
}
#contact{
	float:right;
}
#contact p{
	line-height:24px;
	font-size:12px;
}
#none{
	height: 55px;
	border-top: 1px solid #000;
	border-bottom: 1px solid #000;
	margin-bottom: 25px;
}
#nav{
	width: 900px;
	margin: 0 auto;
}
#nav li{
	float:left;
}
#nav a{
	display: block;
	font-size: 18px;
	padding: 16px 38px;
	
}
#nav a:hover{
	background:#000;
}
#black{
	background:#000;
}
#banner{
	width:900px;
	height:400px;
	margin:0 auto;
	margin-bottom:23px;
}
#video {
	position: relative;
	margin: 0 40px 30px 200px;
}
#video img {
	cursor: pointer;
}
#video_text {
	width:600px;
	height:30px;
	line-height:30px;
	text-align:center;
	background:#000;
	display:block;
	position:absolute;
	left:0;
	bottom:0;
	filter: alpha(opacity=50);   /**兼容IE**/
	-moz-opacity: 0.5;           /**旧版谷歌**/
	-khtml-opacity: 0.5;         /**khtml使用者**/
	opacity: 0.5;
}
#profile, #video {
	float: left;
}
#profile {
	width: 285px;
}
#profile p {
	line-height: 24px;
	text-indent: 2em;
}
#profile_text p{
	text-indent:2em;
	font-size:14px;
	line-height:24px;
}
#video a:hover,#notice_text a:hover{
	text-decoration: underline;
	color: #b59857;
}

#notice_board{
	width:300px;
	height:175px;
	margin: 0 40px 30px 200px;
	float: left;
}

#notice_text a {
	line-height: 24px;
	margin-right:40px;
}
#notice_text li {
	height: 24px;
	line-height:24px;
}
#notice_text span {
	float: right;
	line-height: 24px;
}
#site{
	float: left;
	height:175px;
	margin-bottom:30px;
}
#site img{
	border: 1px #fff solid;
	margin-left:15px;
	float:left;
}
#site a:hover,#teacher a:hover{
	filter: alpha(opacity=50);
	-moz-opacity: 0.5;
	-khtml-opacity: 0.5;
	opacity: 0.5;	
}
#teacher {
	width: 870px;
	margin: 0 auto 85px;
}
#teacher img {
	margin-right: 20px;
}
#teacher a {
	position: relative;
}
#teacher a:hover .teacher_text {
	display: block;
}
#copright{
	text-align:center;
	padding-top:45px;
	margin-bottom:55px;
	border-top:#000 1px solid;
}
#copright p{
	font-size:12px;
	line-height:24px;
	color:#9c9c9c;
}
.title {
	font-size: 18px;
	background: url(../images/icon.png) no-repeat top left;
	text-indent: 2em;
	padding-bottom: 20px;
}
.teacher_text {
	position: absolute;
	top:0px;
	left:8px;
	text-indent: 2em;
	line-height: 24px;
	width: 260px;
	display: none;
}
.teacher_title {
	text-align: center;
}

