.ad{background:#fff;overflow:hidden;clear:both;border-radius: 6px;}
.ad a{margin:5px;display:block;border-radius:3px;}
.ad img{max-width:100%;}
.ad li{float:left;width:50%;list-style:none;}
@media(max-width:999px) {
.ad{margin: 0 0 10px 0;}
.ad li{width:100%;}
}
/**新增文字广告**/
.txtguanggao{
    width: 100%;
    overflow: hidden;
    display: block;
    box-shadow: 0 1px 2px 0 rgba(0,0,0,.05);
}
.txtguanggao a{
    width: calc((100% - 20px) / 4);
    float: left;
    border-radius: 2px;
    line-height: 35.35px;
    height: 35.35px;
    text-align: center;
    font-size: 14px;
    color: #fff;
    display: inline-block;
    background-color: rgb(255, 153, 159);
    margin: 2.5px;
		
    transition-duration: .3s;
}
.txtguanggao a:nth-child(1) {
    background-color: #dc3545;
}
.txtguanggao a:nth-child(2) {
    background-color: #007bff;
}
.txtguanggao a:nth-child(3) {
    background-color: #28a745;
}
.txtguanggao a:nth-child(4) {
    background-color: #ffc107;
}
.txtguanggao a:nth-child(5) {
    background-color: #28a745;
}
.txtguanggao a:nth-child(6) {
    background-color: #ffc107;
}
.txtguanggao a:nth-child(7) {
    background-color: #dc3545;
}
.txtguanggao a:nth-child(8){
    background-color: #007bff;
}
.txtguanggao a:hover{
background:#FF2805;color:#FFF
}
@media screen and (max-width: 1000px) {
.txtguanggao a{
   width: calc((100% - 10px) / 2);
    float: left;
    border-radius: 2px;
    line-height: 35.35px;
    height: 35.35px;
    text-align: center;
    font-size: 14px;
    color: #fff;
    display: inline-block;
    background-color: rgb(255, 153, 159);
    margin: 2.5px;
    transition-duration: .3s;
}
}
	@media screen and (min-width: 1000px) {
		.txtguanggao a{
		width: calc((100% - 20px) / 4);
		}}