.categorylist3 .itembox{border-top:1px solid #eee;}
.categorylist3 .itembox .listbox{}
.categorylist3 .item{ float:left;  text-align:center; border-bottom:1px solid #eee; border-right:1px solid #eee;box-sizing: border-box;}
.categorylist3 .item .name{ margin-top:10px;}

.categorylist3 .item.hide{ display:none;}
.categorylist3 .itembox.open .item.hide{ display:block;}
.categorylist3 .item .img{ padding-bottom:10px;}
.categorylist3 .item img{ width:120px; height:120px; display:block; margin:0 auto;}
.categorylist3 .openbox { padding: 10px 0; text-align: center; line-height: 1.5em; width: 49%; margin: 30px auto 0px; cursor: pointer;background: #ffdc00;}
.categorylist3 .openbox a{ color: #1a1a1a;}
.categorylist3 .openbox .openbtn::after{content:"展开>>"}
.categorylist3 .openbox .openbtn.open::after{content:"收起>>"}

.categorylist3.col5 .item{width:20%;}
.categorylist3.col5 .item:nth-child(5n){ border-right:0px;}

.categorylist3.col4 .item{width:25%;}
.categorylist3.col4 .item:nth-child(4n){ border-right:0px;}