/**图片小变大**/
.item{ width:100%; height:100%; float:left; margin:15px; margin:0 auto; text-align:center; overflow:hidden;}
.item ul li.big-photo{ margin-bottom:5px; }
.big-photo img{ width:100%; height:100%; opacity:1; -webkit-transition:opacity 0.6s cubic-bezier(0.25,0.46,0.45,0.94); -o-transition:opacity 0.6s cubic-bezier(0.25,0.46,0.45,0.94); transition:opacity 0.6s cubic-bezier(0.25,0.46,0.45,0.94); animation-duration:0.6s; }
.item ul li.des-small{ display:inline-block; margin:5px 2px;}
.des-small img{ width:40px; height:40px; border:1px solid #ccc; border-radius:5px; overflow:hidden; -webkit-transition:all 0.5s ease;-moz-transition:all 0.5s ease;-o-transition:all 0.5s ease;-ms-transition:all 0.5s ease;transition:all 0.5s ease; }
.des-small img:hover{ border:1px solid #000;}
.clear{clear:both}
 
 
/**tab选项卡**/
.tab{ width:100%; float:left; }
.tab .tab_Bg{ width:100%; height:70px; float:left; background-color:#FFF; box-sizing:border-box;}
.tab .tab_Bg .nav-tabs{ width:100%; box-sizing:border-box; position:relative; border:none; height:80px; }
.tab .tab_Bg .nav-tabs li{ width:25%; float:left; z-index:1; }
.tab .tab_Bg .nav-tabs li a{ display:block; height:80px; line-height:80px; text-align:center; background-color:#fff; font-size:24px; color:#000; position:relative; overflow:hidden; z-index:1; transition:all 0.3s ease; margin:0; border-radius:0; padding:0; border:none; }
.tab .tab_Bg .nav-tabs li.active a,.tab .tab_Bg .nav-tabs li a:hover{ color:#d90000; }
.tab .tab_Bg .nav-tabs li a:after{ content:""; display:block; width:100%; height:0px; position:absolute; top:0; left:0; z-index:-1; transition:all 0.3s ease;  margin:0; border-radius:0; padding:0;border:none; }
.tab .tab_Bg .nav-tabs li.active a:after,.tab .tab_Bg .nav-tabs li a:hover:after{ height:100%; background-color:#f4f4f4; color:#fff; margin:0; border-radius:0; padding:0;border:none; }
.tab .tab-content{ width:100%; float:left; padding:100px 0; margin-top:0; border:none; }



@media (max-width: 479px) {
/**图片小变大**/
.item ul li.big-photo{ padding:5px;}

/**tab选项卡**/
.tab{ }
.tab .tab_Bg{ height:50px; }
.tab .tab_Bg .nav-tabs{ height:50px; }
.tab .tab_Bg .nav-tabs li{ width:33%; margin:0 1px 0 0; }
.tab .tab_Bg .nav-tabs li a{ height:50px; line-height:50px; font-size:14px;}
.tab .tab-content{ padding:50px 10px;}
}

@media (min-width: 480px) and (max-width: 639px) {
/**图片小变大**/
.item ul li.big-photo{ padding:5px;}

/**tab选项卡**/
.tab{ }
.tab .tab_Bg{ height:40px;}
.tab .tab_Bg .nav-tabs{ height:40px; }
.tab .tab_Bg .nav-tabs li{ width:33%; margin:0 1px 0 0;}
.tab .tab_Bg .nav-tabs li a{ height:40px; line-height:40px; font-size:14px;}
.tab .tab-content{ padding:50px 10px;}

}

@media (min-width: 640px) and (max-width:1023px ) {
/**tab选项卡**/
.tab{ }
.tab .tab_Bg{ height:55px; }
.tab .tab_Bg .nav-tabs{ height:55px; padding:0 5%; }
.tab .tab_Bg .nav-tabs li{ width:25%; margin:0 1px 0 0 }
.tab .tab_Bg .nav-tabs li a{ height:55px; line-height:55px; font-size:15px;}
.tab .tab-content{ padding:60px 15px;}

}


@media (min-width: 1024px) and (max-width:1199px ) {
/**tab选项卡**/
.tab{ }
.tab .tab_Bg{ height:60px; }
.tab .tab_Bg .nav-tabs{ height:60px; padding:0 5%; }
.tab .tab_Bg .nav-tabs li{ width:20%; margin:0 1px 0 0 }
.tab .tab_Bg .nav-tabs li a{ height:60px; line-height:60px; font-size:15px;}
.tab .tab-content{ padding:80px 0;}

}


@media (min-width: 1200px) and (max-width:1439px ){
/**tab选项卡**/
.tab{ }
.tab .tab_Bg{ height:70px; }
.tab .tab_Bg .nav-tabs{ height:70px; padding:0 5%; }
.tab .tab_Bg .nav-tabs li{ width:16%; margin:0 1px 0 0}
.tab .tab_Bg .nav-tabs li a{ height:70px; line-height:70px; font-size:16px;}
.tab .tab-content{ padding:80px 0;}

}

@media (min-width: 1440px) and (max-width:1680px ){
/**tab选项卡**/
.tab{ }
.tab .tab_Bg{ height:80px;}
.tab .tab_Bg .nav-tabs{ height:80px; }
.tab .tab_Bg .nav-tabs li{ width:15%; margin:0 1px 0 0 }
.tab .tab_Bg .nav-tabs li a{ height:80px; line-height:80px; font-size:16px;}
.tab .tab-content{ padding:100px 0;}
	

}

@media (min-width: 1681px) and (max-width:1920px ){
/**tab选项卡**/
.tab{ }
.tab .tab_Bg{ height:80px;}
.tab .tab_Bg .nav-tabs{ height:80px; }
.tab .tab_Bg .nav-tabs li{ width:25%; margin:0 1px 0 0 }
.tab .tab_Bg .nav-tabs li a{ height:80px; line-height:80px; font-size:24px;}
.tab .tab-content{ padding:100px 0;}
	
}

@media (min-width: 1921px) and (max-width:2440px ){
/**tab选项卡**/
.tab{ }
.tab .tab_Bg{ height:70px; padding:5px;}
.tab .tab_Bg .nav-tabs{ height:60px; }
.tab .tab_Bg .nav-tabs li{ width:25%; margin:0 1px 0 0 }
.tab .tab_Bg .nav-tabs li a{ height:60px; line-height:60px; font-size:16px;}
.tab .tab-content{ padding:100px 0;}
	
}

@media (min-width: 2441px) and (max-width:2880px ){
/**tab选项卡**/
.tab{ }
.tab .tab_Bg{ height:70px; padding:5px;}
.tab .tab_Bg .nav-tabs{ height:60px; }
.tab .tab_Bg .nav-tabs li{ width:15%; margin:0 1px 0 0; }
.tab .tab_Bg .nav-tabs li a{ height:60px; line-height:60px; font-size:16px;}
.tab .tab-content{ padding:100px 0;}

}