/* CSS Document */
.content{width:918px; margin:46px auto 0;}
.kv_tab{ height:527px; width:918px; overflow:hidden; position:relative;}
.kv_tab .kv_pic{margin-top:66px; width:100%; height:333px; display:block; overflow:hidden;}
.kv_tab h2{width:918px; height:128px; position:relative; overflow:hidden;}
.kv{ height:527px; width:918px; overflow:hidden;}
.kv_bg{ float:left; position:absolute; left:0; top:194px; z-index:5; display:none; width:918px; height:333px; overflow:hidden; background:url(#);}
/*.kv1 h2{ background:url(../images/kv_1.png) no-repeat 0 0;}
.kv2 h2{ background:url(../images/kv_2.png) no-repeat 0 0;}
.kv3 h2{ background:url(../images/kv_3.png) no-repeat 0 0;}*/
/*.kv1 a{ background:url(../images/kv_pic_1.jpg) no-repeat 0 0;}
.kv1 a:hover{ background-position:0 -333px;}
.kv2 a{ background:url(../images/kv_pic_2.jpg) no-repeat 0 0;}
.kv2 a:hover{ background-position:0 -333px;}
.kv3 a{ background:url(../images/kv_pic_3.jpg) no-repeat 0 0;}
.kv3 a:hover{ background-position:0 -333px;}*/
.kv_tab_nav{ position:absolute; width:100px; height:18px; left:0; top:145px;}
.kv_tab_nav div{ float:left; margin-right:5px; width:18px; height:18px; background:url(../images/tab_nav.png) no-repeat 0 0; cursor:pointer;}
.kv_tab_nav div.on{ width:18px; height:18px; background:url(../images/tab_nav.png) no-repeat 0 -18px;}

.choose_us h2{margin:17px 0;  background:url(../images/h2_bg.png) repeat 0 0;}
.choose_us h2 a{ padding:44px 0 41px 30px; height:30px; display:block; background:url(../images/choose_h2.png) no-repeat 30px 40px;}
.choose_img{ position:relative;}


.img_1{width:452px;}
.img_1 a{width:452px; height:460px; display:block; background:url(../images/choose_pic_1.jpg) no-repeat 0 0;}
.img_1 a:hover{ background-position:0 -460px;}
.img_2{width:452px; position:absolute; left:467px; top:0;}
.img_2 a{width:452px; height:227px; display:block; background:url(../images/choose_pic_2.jpg) no-repeat 0 0;}
.img_2 a:hover{ background-position:0 -227px;}
.img_3{width:217px; position:absolute; left:467px; top:240px;}
.img_3 a{width:217px; height:220px; display:block; background:url(../images/choose_pic_3.jpg) no-repeat 0 0;}
.img_3 a:hover{ background-position:0 -220px;}
.img_4{width:217px; position:absolute; left:702px; top:240px;}
.img_4 a{width:217px; height:220px; display:block; background:url(../images/choose_pic_4.jpg) no-repeat 0 0;}
.img_4 a:hover{ background-position:0 -220px;}