/*
author:chenlijian;
design:guowenquan;
update:2015-08-12;
*/
.header {
    background: #fff;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
+ zoom: 1;
    z-index: 10;
    height: 70px;
}

.header a:hover {
    text-decoration: none;
}

.header .logo {
    float: left;
    width: 100px;
    height: 45px;
    position: relative;
    top: 12px;
}

.header .logo a {
    display: block;
    width: 100%;
    height: 100%;
}

.header .logo a img {
    display: block;
    width: 100%;
}

.header .nav_list {
    position: absolute;
    top: 0;
    right: 0;
}

.header .nav_list > li {
    float: left;
    position: relative;
    padding: 0 14px;
}

.header .nav_list li {
    _float: left;
    position: relative;
    _padding: 0 14px;
}

.header .btn_nav {
    display: block;
    font-size: 16px;
    line-height: 67px;
    color: #666;
}

.header .btn_nav:hover {
    color: #00a7ea;
    border-bottom: 3px solid #26afea;
}

.header .sub_nav {
    position: absolute;
    top: 70px;
    left: 50%;
    width: 90px;
    margin-left: -45px;
    text-align: center;
    font-size: 15px;
    line-height: 29px;
}

.header .sub_nav ul {
    position: relative;
    overflow: hidden;
+ zoom: 1;
}

.header .sub_nav li {
    height: 29px;
    border-top: 1px solid #f4f4f4;
    background: #fff;
    position: relative;
    top: -1px;
    _padding: 0;
    _float: none;
}

.header .sub_nav .opc_bg {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: #fff;
    filter: alpha(opacity=50);
}

.header .sub_nav a {
    display: block;
    color: #666;
    position: relative;
    z-index: 5;
}

.header .sub_nav a:hover {
    color: #00a7ea;
}

.footer {
    background: #f5f5f5;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.footer .foot {
    width: 1100px;
    margin: 0 auto;
    padding-bottom: 70px;
    position: relative;
}

.footer .link_box {
    padding-top: 70px;
    font-size: 14px;
    line-height: 32px;
}

.footer .links a {
    color: #565656;
    margin-right: 16px;
}

.footer .other_link {
    color: #565656;
}

.footer .other_link a {
    color: #999;
    margin: 0 7px;
}

.footer .info_box {
    margin-top: 20px;
}

.footer .txt_info {
    color: #666;
}

.footer .txt_info a {
    color: #666;
    line-height: 24px;
    margin-right: 6px;
}

.footer .txt_copyright {
    float: right;
    color: #999;
}

.footer .follow_box {
    position: absolute;
    top: 70px;
    right: 0;
}

.footer .follow_box li {
    float: right;
    margin-left: 18px;
    _display: inline;
    position: relative;
}

.footer .follow_box a {
    display: block;
    width: 30px;
    height: 25px;
    background-image: url("../img/ico_footer.png") /*tpa=http://www.xunlei.com/img/ico_footer.png*/;
}

.footer .follow_wechat {
    background-position: 0 0;
}

.footer .follow_sina {
    background-position: -48px 0;
}

.footer .follow_box .code {
    position: absolute;
    top: 100%;
    left: -9999px;
    margin-left: -90px;
    width: 180px;
    height: 180px;
    opacity: 0;
    transition: opacity .4s;
    -webkit-transition: opacity .4s;
}

.footer .follow_wechat:hover {
+ zoom: 1;
}

.footer .follow_wechat:hover .code {
    left: 50%;
    opacity: 1;
}