.content{width: 1280px; height: auto; margin: 0 auto;}
.content .content_l{float: left; width: 730px;}
.content_l .navtree{padding: 15px 0 30px 0;}
.content_l .navtree li{float: left; padding-right: 10px; color: #433d3d;}
.content_l .navtree a{color: #433d3d;}
.content_l .navtree a:hover{text-decoration: underline;}

.content_l .con{padding-bottom: 100px;}
.con h2{padding: 10px 0; font-size: 30px; font-weight: normal;}
.con h3{padding: 10px 0; font-size: 24px; color: #212121;}
.con .video{display: block; width: 600px; height: 350px; margin: 0 auto;}
.con p{font-size: 16px; line-height: 26px; padding: 10px 0;}
.con img{display: block; margin: 10px auto; border: 1px solid #ccc;}
.con span.jc{font-weight: bold; color: #000;}
.con span.xt{font-style: oblique;}
.con ol{padding: 10px 0; padding-left: 10px; list-style: none;}
.con ol li{padding: 5px 0; line-height: 26px;}
.con ul{padding: 10px 0; padding-left: 20px; list-style: disc;}
.con ul li{padding: 5px 0; line-height: 26px;}
.con li.li_img{list-style: none;}
.con a.getbtn{display: block; width: 396px; height: 60px; background: url(../images/getbtn.png) no-repeat; background-position: -396px 0; margin: 30px auto; font-size: 22px; font-weight: bold; color: #fff; line-height: 60px; text-align: center;}
.con a.getbtn:hover{background: url(../images/getbtn.png) no-repeat; background-position: 0 0;}

.content_l .form{padding: 90px 40px; height: 36px; width: 650px;}
.content_l .form h3{float: left; padding-left: 30px; background: url(../images/search_ico.png) no-repeat left center; font-size: 20px; font-weight: bold; color: #4b4d4e; line-height: 36px; height: 36px;}
.content_l .form form{float: right; width: 396px; height: 36px; border-radius: 18px; background: #e5e8ec;}
.content_l .form form #form_txt{height: 36px; width: 335px; background: #e5e8ec; border-radius: 18px; padding-left: 18px;}
.content_l .form form #form_btn{width: 35px; height: 35px; background: url(../images/seach_btn.png) no-repeat; cursor: pointer;}

.bottom{min-width: 1280px; height: 388px; background: url(../images/bottom_bg.png) repeat-x;}
.bottom dl{width: 1280px; height: 388px; margin: 0 auto; background: url(../images/cate_bottom_bg.png) no-repeat;}
.bottom dl dt{float: left; width: 575px; height: 388px; background: url(../images/bottom_bu.png) no-repeat;}
.bottom dl dd{float: right; width: 705px; height: 188px; padding-top: 200px;}
.bottom dd p{font-size: 18px; color: #393939; text-align: center;}
.bottom dd a.getbtn{display: block; width: 396px; height: 60px; background: url(../images/getbtn1.png) no-repeat; margin: 30px auto; font-size: 22px; font-weight: bold; color: #fff; line-height: 60px; text-align: center;}