/*导航栏*/
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 0 60px;
    z-index: 9;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -ms-transition: all 0.3s ease;
    transition: all 0.3s ease;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.bglogo{
    height: 104px;
    margin: 0 auto;
}
.header .logo {
    left: 60px;
    top: 50%;
    z-index: 3;
    width: 528px;
    height: 100px;
    background: url(../logo.png) no-repeat center center;
}


.nav .center {
    display: block;
    height: 104px;
    position: absolute;
    top: 0px;
    right: 150px;
    cursor: pointer;
    opacity: 1;
    transition: opacity 0.3s linear;
    transform: translate(0px,0);
    width: 832px;
}
.nav .center .tab {
    display: inline-block;
    height: 104px;
    float: left;
    margin-left: 30px;
    position: relative;
}
.submenu_show .nav .center .tab .txt, .head_white .nav .center .tab .txt {
    color: #2b2e2e;
}


.nav .center .tab .txt {
    display: block;
    height: 104px;
    line-height: 104px;
    font-size: 16px;
    font-weight: bold;
    opacity: 0.95;
    -webkit-transition: color 0.3s linear;
    position: relative;
    z-index: 2;
}
.nav .center .tab .txt:after {
    display: block;
    content: "";
    height: 4px;
    width: 100%;
    position: absolute;
    bottom: 19px;
    left: 0px;
    background: #194ac3;
    opacity: 0;
    -webkit-transition: transform 0.2s ease-out,opacity 0.2s ease-out;
    transform-origin: 50% 0%;
    transform: scale(0.01,1);
}
.nav .center .tab .txt:hover {
    opacity: 1;
}

.submenu_show .logo h1,.head_white .logo h1{ background-image: url(../img/index/menu_logo_hover.png);background-size: 100% 100%;}
.submenu_show .nav .center .tab .txt,.head_white .nav .center .tab .txt{ color: #2b2e2e;}
.submenu_show.search_area_show .search_area,.head_white.search_area_show .search_area{ width: 676px; background: #f6f6f6; }
.submenu_show.search_area_show .search_area .search_icon,.head_white.search_area_show .search_area .search_icon{ opacity: 0.3; }
.submenu_show.search_area_show .search_area .ipt_search,.head_white.search_area_show .search_area .ipt_search{ color: #2b2e2e;}
.submenu_show .search_area .search_icon,.head_white .search_area .search_icon{ background-image:url(../img/index/icon_search_hover.png);}
.submenu_show .lang_area a,.head_white .lang_area a{ color: #2b2e2e;}
.submenu_show .lang_area .s_line,.head_white .lang_area .s_line{ color: #2b2e2e;}
.submenu_show .bg_hover{ display:block !important; width: 100%; height: 445px; background:rgba(255,255,255,1); z-index: 1; position: absolute; top: 0px; left: 0px; -webkit-animation:a_bg_hover_show 0.2s ease-out both; -webkit-transform-origin:50% 0%;}
.submenu_show .nav .center .tab.sublist_show .downTab,.head_white .nav .center .tab.sublist_show .downTab{ -webkit-animation:a_menu_item_show 0.2s ease-out both;}
.submenu_show .nav .center .tab.sublist_hide .downTab,.head_white .nav .center .tab.sublist_hide .downTab{ -webkit-animation:a_menu_item_hide 0.15s ease-out both;}
.submenu_show .nav .center .tab .menu_hook{ display:block;}
.submenu_hide,.sublist_hide{ pointer-events:none;} /*避免鼠标快速移动触发鼠标对菜单收回动画延迟 一进多出显示bug*/
.submenu_hide .bg_hover{ -webkit-animation:a_bg_hover_hide 0.15s ease-out both; -webkit-transform-origin:50% 0%;}

.nav .center .tab:hover .txt:after {
    transform: scale(1,1);
    opacity: 1;
}
.nav .center .tab li{
    text-align: center;
}
.downTab li a {
    display: block;
    font-size: 16px;
    color: #2b2e2e;
    opacity: 0.7;
    padding: 13px 0;
}
.downTab li a:hover{
    opacity: 1;
}
.downTab {
    display: none;
    position: absolute;
    width: 160px;
    left: 50%;
    margin-left: -80px;
    text-align: center;
    z-index: 2;
    background-color: white;
}

.bg{
    margin-top: 107px;
}
.bg