*{
	margin:0px;
	padding:0px;
	}
body{
	font-family:"宋体";
	font-size:12px;
	background-color:#dfecf0;
	color:#000000;
	}

a{
	text-decoration:none;
	color:#000000;
}
.clear{
	clear:both;
	}
.font_y{
	color:#deff00;
	font-weight:bold;
	}
.left{
	float:left;
	}
.right{
	float:right;
	}
/*头部*/
#banner{
	width:100%;
	height:73px;
	background-image:url(banner_bg_02.jpg);
	background-repeat:repeat-x;
	}
#logo{
	height:73px;
	width:385px;
	float:left;
	background-image:url(student_logo_01.jpg);
	}
#banner_right{
	height:73px;
	width:414px;
	background-image:url(student_logo_R_03.jpg);
	float:right;
	}
#nav{
	width:100%;
	height:36px;
	background-image:url(nav_bg_12.jpg);
	color:#d0edff;
	}
#nav .text{
	float:left;
	padding:12px 0px 0px 15px;
	}
#nav .inp{
	float:left;
	padding:8px 0px 0px 10px;
	}
#nav .inp input{
	height:15px;
	width:150px;
	}
#nav .bt{
	float:left;
	padding:8px 0 0 10px;
	}
.botton{
	height:22px;
	width:60px;
	background-image:url(nav_bt_18.jpg);
	color:#FFFFFF;
	cursor:pointer;
	text-align:center;
	line-height:22px;
	}
#nav_right{
	float:right;
	width:200px;
	}
.mode{
	padding:7px 0 0 10px;
	float:left;
	}
/*left_menu*/
#left_menu{
	width:207px;
	float:left;
	}
.menu_bg{
	background-color:#add2f2;
	float:left;
	width:199px;
	height:100%;
	padding:4px;
	}
.menu_content{
	width:187px;
	height:100%;
	border-left:solid #278abe 1px;
	border-bottom:solid #278abe 1px;
	border-right:solid #278abe 1px;
	background-color:#dfecf0;
	padding:5px 0px 5px 10px;
	margin-bottom:10px;
	}
.student_menu_content{
	width:197px;
	height:400px;
	border-left:solid #278abe 1px;
	border-bottom:solid #278abe 1px;
	border-right:solid #278abe 1px;
	background-color:#dfecf0;
	padding:10px 0px 5px 0px;
	}
.menu_Rb{
	width:6px;
	background-color:#278abe;
	float:right;
	height:506px;
	}
.R_tab{
	background-image:url(b_tab_37.jpg);
	height:84px;
	width:6px;
	margin-top:100px;
	cursor:pointer;
	}
.menu_title{
	background-image:url(menu_title_33.jpg);
	height:22px;
	width:149px;
	color:#fffefe;
	font-weight:bold;
	padding:12px 0px 0px 50px;
	}
.student_menu_bt{
	background-image:url(menu_bt_07.gif);
	width:167px;
	height:19px;
	margin:5px auto 0 auto;
	text-align:center;
	padding-top:8px;
	cursor:pointer;
	}
.student_menu_bt_M{
	background-image:url(menu_bt_M_07.gif);
	width:167px;
	height:19px;
	margin:5px auto 0 auto;
	text-align:center;
	padding-top:8px;
	cursor:pointer;
	}
.menu_tz{
	background-image:url(menu_51.jpg);
	height:20px;
	width:137px;
	padding:14px 0 0 25px;
	cursor:pointer;
	}
.menu_noclick{
	background-image:url(menu_m_58.jpg);
	height:20px;
	width:137px;
	padding:14px 0 0 25px;
	cursor:pointer;
	}
.menu_click{
	background-image:url(menu_58.jpg);
	height:20px;
	width:137px;
	padding:14px 0 0 25px;
	cursor:pointer;
	}
.menu_2_content{
	width:162px;
	}
.menu_2_dq{
	background-image:url(menu1_62.jpg);
	height:17px;
	width:122px;
	margin-top:5px;
	padding:7px 0 0 40px;
	cursor:pointer;
	}
.menu_2_bc{
	background-image:url(menu_2_62.jpg);
	height:17px;
	width:122px;
	margin-top:5px;
	padding:7px 0 0 40px;
	cursor:pointer;
	}
/*内容区*/
#main_content{
	background-color:#dfecf0;
	float:none!important;
	float:left;
	}
#tab_bg{
	background-image:url(big_menu_bg_03.jpg);
	background-repeat:repeat-x;
	height:91px;
	padding:18px 20px 0 20px
	}
.admin_tab{
	height:31px;
	margin-right:2px;
	float:left;
	}
.tab_dc_L{
	height:31px;
	background-image:url(tab_b_39.jpg);
	width:18px;
	float:left;
	cursor:pointer;
	}
.tab_dc_Mid{
	height:21px;
	background-image:url(tab_b_40.jpg);
	background-repeat:repeat-x;
	float:left;
	color:#0b538e;
	cursor:pointer;
	padding:10px 10px 0px 10px;
	}
.tab_dc_R{
	height:31px;
	background-image:url(tab_b_42.jpg);
	width:5px;
	float:left;
	cursor:pointer;
	}
.tab_ndc_L{
	height:31px;
	background-image:url(tab_b_44.jpg);
	width:5px;
	float:left;
	cursor:pointer;
	}
.tab_ndc_Mid{
	height:21px;
	background-image:url(tab_b_45.jpg);
	background-repeat:repeat-x;
	float:left;
	color:#4b7ca3;
	cursor:pointer;
	padding:10px 10px 0px 10px;
	}
.tab_ndc_R{
	height:31px;
	background-image:url(tab_b_47.jpg);
	width:5px;
	float:left;
	cursor:pointer;
	}
.content_title{
	background-image:url(content_title_bg_55.jpg);
	height:27px;
	background-repeat:repeat-x;
	border:solid #8bbedc 1px;
	margin:10px 5px 0px 5px;
	color:#034983;
	line-height:27px;
	padding-left:10px;
	}
.cntent_k{
	background-color:#e3f1f6;
	padding:10px;
	border-left:solid #8bbedc 1px;
	border-bottom:solid #8bbedc 1px;
	border-right:solid #8bbedc 1px;
	margin:0px 5px 0px 5px;
	min-height:480px;
	}
.student_cntent_k{
	background-color:#e3f1f6;
	padding:10px;
	border-left:solid #8bbedc 1px;
	border-bottom:solid #8bbedc 1px;
	border-right:solid #8bbedc 1px;
	margin:0px 5px 0px 5px;
	width: 100%;
	}
.k_cc{
	width:95%;
	margin:0 auto;
	}
.k_cc ul li{
	list-style-type:none;
	margin-bottom:5px;
	}
.k_cc ul li input{
	height:15px;
	width:40%;
	border:solid #a2b3be 1px;
	}
.content_bt{
	background-image:url(bt_bg_65.jpg);
	background-repeat:repeat-x;
	border:solid #a6c1d9 1px;
	text-align:center;
	color:#004176;
	width:60px;	
	float:left;
	cursor:pointer;
	}
#footer{
	background-image:url(footer_bg_72.jpg);
	background-repeat:repeat-x;
	height:25px;
	width:100%;
	color:#FFFFFF;
	text-align:center;
	padding-top:13px;
	}
.k_cc table{
	border-top:solid #afbec6 1px;
	border-left:solid #afbec6 1px;
	}
.k_cc table td{
	border-bottom:solid #afbec6 1px;
	border-right:solid #afbec6 1px;
	text-align:center;
	height:25px;
	line-height:25px;
	}
.table_bg1{
	background-color:#cfe1ef;
	color:#02498c;
	}
.table_bg2{
	background-color:#dfe7ed;
	}
.study_bt{
	background-image:url(xbt_07.jpg);
	height:15px;
	width:85px;
	cursor:pointer;
	line-height:12px;
	padding-top:4px;
	margin:0 auto;
	}
.study_bt_M{
	background-image:url(xbt_M_13.jpg);
	height:15px;
	width:85px;
	cursor:pointer;
	line-height:12px;
	padding-top:4px;
	margin:0 auto;
	}
.page_bt{
	background-image:url(page_bt_17.jpg);
	height:14px;
	width:48px;
	cursor:pointer;
	text-align:center;
	line-height:12px;
	padding-top:4px;
	margin:0 auto;
	}
.table_bg1 table,.table_bg1 table td{
	border:none;
	text-align:center;
	}
.go{
	background-image:url(go_20.jpg);
	width:21px;
	height:16px;
	cursor:pointer;
	margin-right:50px;
	}
/*课程*/
#lesson_title{
	background-image:url(lesson_title_03.jpg);
	width:199px;
	height:18px;
	text-align:center;
	color:#000;
	padding-top:10px;
	}
.big_bt{
	width:87px;
	height:80px;
	float:left;
	margin-right:10px;
	background-image:url(big_bt_06.jpg);
	cursor:pointer;
	}
.big_bt_M{
	width:87px;
	height:80px;
	float:left;
	margin-right:10px;
	background-image:url(big_bt_M_06.jpg);
	cursor:pointer;
	}
.study_bt1{
	background-image:url(xbt_07.jpg);
	height:20px;
	width:32px;
	cursor:pointer;
	line-height:12px;
	padding-top:4px;
	margin:0 auto;
	}
.study_bt1_M{
	background-image:url(xbt_M_13.jpg);
	height:20px;
	width:32px;
	cursor:pointer;
	line-height:12px;
	padding-top:4px;
	margin:0 auto;
	}
.ico{
	padding-left:24px;
	padding-top:10px;
	}
.ico_text{
	text-align:center;
	padding-top:7px;
	}