@charset "gb2312";
/* CSS Document */
body{font-family:"宋体";}
/*头部*/
.header_top{ width:100%; height:110px; background:url(../images/header_bg.jpg) repeat-x center 0;}
.top_nav{ width:950px; height:110px;overflow:hidden; font-size:0}
/*广告图*/
.banner_01{ width:100%; height:120px; background:url(../images/banner_01.jpg) no-repeat center 0; }
.banner_02{ width:100%; height:194px; background:url(../images/banner_02.jpg) no-repeat center 0;}
.banner_03{ width:100%; height:188px; background:url(../images/banner_03.jpg) no-repeat center 0;}
/*主体*/
.main{ width:950px; margin-top:58px;}
/*切换*/
.change_one{ width:950px; height:318px; position:relative}
.qie_one { position:absolute; top:0; left:0; margin-left:260px;}
.qie_one ul li{ float:left; margin-right:7px; display:inline}
.qie_nr dl dt{ float:left; width:245px; height:212px; position:absolute; left:0; top:0;margin-top: 2px;
margin-left: 1px;}
.qie_nr dl dd.dd_a{ float:right; width:688px;border-right: 1px solid #cdcbce;
height: 105px; overflow:hidden}
.qie_nr dl dd{ float:right; width:688px;}
.qie_height{ height:90px;}
.qie_nr dl dd p{ width:503px; font-family:"微软雅黑"; font-size:16px; line-height:28px; float:left; color:#4b414d}
.qie_nr dl dd img{ float:right; display:inline;  margin-right:-1px;}
/*视频*/
.one_ju{ margin-bottom:30px; display:inline-block}
.video_one { height:auto; display:inline-block;}
.video_one li{ width:205px; float:left; margin-right:43px; display:inline}
.video_one dl dt{ width:205px; height:132px; background:url(../images/pic1.jpg) no-repeat; padding-top:16px;}
.video_one dl dd{ text-align:center; width:205px; font-size:16px; color:#71547b; font-family:"微软雅黑"; padding-top:8px;}
.video_one dl dd a{color:#71547b; }
.one_bor{ background:url(../images/pic2.gif) no-repeat center bottom; height:1px; padding-bottom:49px; 
margin-bottom:45px;}
/*举一反三*/
.bg_one{ width:950px; height:304px; background:url(../images/pic3.jpg) no-repeat; padding-bottom:20px; clear:both}
.one_li{ float:left;width:508px;}
.one_txt{ float:left; width:438px; }
.one_txt p,.bg_two p{ font-size:16px;font-family:"微软雅黑"; color:#4b414d; line-height:26px; padding-top:125px;margin-left:10px; 
 }
.one_li img{ margin:240px 0 0 355px;}
.one_txt a,.bg_two a{ font-size:16px; color:#a071af;font-family:"微软雅黑"; background:url(../images/pic3.gif) no-repeat center left; padding-left:10px; float:right; padding-right:15px;}
/*直播交流课堂*/
.bg_two{ width:950px; height:296px; background:url(../images/pic5.jpg) no-repeat}
.bg_two p{ width:493px;}
/*赠送教程*/
.bg_three{ border-bottom:1px solid #cac8cb;height: auto;
display: inline-block;}
.left_top{ width:476px; height:510px; background:url(../images/pic6.jpg) no-repeat; float:left}
.left_bot{ width:474px; height:510px; background:url(../images/pic7.jpg) no-repeat; float:left}
.left_top p{ font-family:"微软雅黑"; font-size:16px; color:#b693c1; text-align:center; line-height:26px; width:430px;}
.left_top p span{ color:#4b414d}
.top_height{ height:336px;}
.left_bot dl { width:415px; padding-left:38px;}
.left_bot dl dd{ font-family:"微软雅黑"; font-size:16px; color:#4b414d; line-height:26px; clear:both}
.left_bot dl dd a{ color:#a579b3; float:right}
.left_bot dl dd p{ float:left}