.page-cate{float: left;width: 315px;}
.page-cate li{border-bottom: 1px solid #ccc;position: relative;overflow: hidden;}
.page-cate li:nth-child(1){border-top: 1px solid #ccc;}
.page-cate li>a{display: inline-block;padding:20px 0;}
.page-cate li a b{display: block;font-size: 18px;line-height: 22px;}
.page-cate li i{position: absolute;top: 20px;right:5px;font-size: 20px;}
.page-cate .child-box{border-top: 1px solid #aaa;padding:20px 10px;display: none;background-color: #f2f2f2;}
.page-cate .child-box.active{display: block;}
.page-cate .child-box a{font-size: 16px;line-height: 20px;margin-top: 20px;padding-left: 20px;color: #666;position: relative;display: block;}
.page-cate .child-box a::before{content:"";position: absolute;top:8px;left: 0;width: 10px;height:1px; background-color:#666;}
.page-cate .child-box a:nth-child(1){margin-top: 0;}