.tab {height:30px;margin-top:-20px;border-bottom:1px solid #c4f0ff;}
.tab li {float:right; list-style:none; font-family:Verdana, Arial, Helvetica, sans-serif;}
.tab li a {display:block;width:116px;height:30px; text-align:center;line-height:30px;color:#333333;text-decoration:none;font-size:12px;cursor:pointer;}
.tab li a:hover {color:#0078a5;}
.tab li a:visited {text-decoration:none;}
.tab li a.sel {background:url(../images/arrow.png) no-repeat; color:#0078a5;font-weight:bold;}
.tab li.guide {background:url(../images/clickhere.jpg) no-repeat right; float:right;width:124px; }

.btn {float:right; padding:15px 0 0 0;}
.btn .dd{display:block;font-weight:bold;color: #FFFFFF;padding:35px 0 0 53px;}
.btn a.free,.btn a.buy{display:block;width:195px;height:61px;text-decoration:none;margin-right:10px; float:left;}
.btn a.free{background: url(../images/btn.png);}
.btn a.buy{background:url(../images/btn.png) no-repeat 0px -61px;}

.btn-mac {float:right; padding:15px 0 0 0;}
.btn-mac .dd{display:block;font-weight:bold;color: #FFFFFF;padding:35px 0 0 48px;}
.btn-mac a.free,.btn-mac a.buy{display:block;width:195px;height:61px;text-decoration:none; float:left; margin:0px 10px 0 0;}
.btn-mac a.free{background: url(../images/btn-mac.png);}
.btn-mac a.buy{background:url(../images/btn-mac.png) no-repeat 0px -61px;}

.products_bottom_text{ float:left; width:190px;}
.products_bottom_text h3{ font-size:12px; display:block; font-weight:bold; line-height:18px; padding-bottom:5px;}
.products_bottom_text p{ line-height:18px; display:block; font-size:12px; color:#777;}
.products_bottom_text2{ float:right; width:190px;}
.products_bottom_text2 h3{ font-size:12px; font-weight:bold; line-height:18px; padding-bottom:5px; display:block;}
.products_bottom_text2 p{ line-height:18px; font-size:12px; display:block; color:#777;}
.productsxiang_bottom_imgtext{ float:left; width:340px; overflow:hidden; zoom:1;}
.productsxiang_bottom_imgtext img{ float:left; padding-top:10px;}
.productsxiang_bottom_imgtext2{ float:right; width:320px; margin-right:15px; overflow:hidden; zoom:1;}
.productsxiang_bottom_imgtext2 img{ float:left; padding-top:10px;}

.upgrade {font-weight:bold;}
.upgrade span{padding:0 0 0 20px;}
