header {
    width: 100%;
    height: 2rem;
    max-width: 600px;
    position: fixed;
    z-index: 999;
    padding: 0 .4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #eee;
    background-color: #fff;
}
header .back{
    width: 1rem;
    height: 1rem;
    background-size: 100% 100%;
    background-image: url(../img/back.png);
}
header .icon{
    width: 1rem;
    height: 1rem;
    background-size: 100% 100%;
    background-image: url(../img/search.png);
}
.cate-list {
    width: 5rem;
    position: fixed;
    z-index: 90;
    top: 2rem;
    bottom: 2.4rem;
    border-right: 1px solid #eee;
    background-color: #fff;
    overflow: hidden;
}
.cate-list ul li.active {
    border-left: 3px solid #B4282D;
}
.cate-list ul li.active a {
    color: #B4282D;
}
.cate-list ul li {
    width: 100%;
    height: 1.5rem;
    line-height: 1.5rem;
    margin: 1rem 0;
}
.cate-list ul li a {
    width: 100%;
    text-align: center;
    display: inline-block;
}
.cate-menu {
    padding: 2.5rem .5rem .5rem;
    margin-left: 5rem;
    background-color: #fff;
}
.cate-menu .cate-top{
    width: 100%;
    height: 6rem;
}
.cate-menu .cate-item{
    padding-top: 2.2rem;
}
.cate-menu .cate-item .cate-item-title {
    text-align: center;
    padding: .4rem 0;
    font-size: .8rem;
}
.cate-item .cate-item-title .cate-text {
    position: relative;
}
.cate-item-title .cate-text:after,
.cate-item-title .cate-text:before {
    position: absolute;
    content: '';
    top: 0;
    bottom: 0;
    margin: auto;
    height: 1px;
    width: 1rem;
    background-color: #666;
    -webkit-transform-origin: 50% 100% 0;
    transform-origin: 50% 100% 0;
}
.cate-item-title .cate-text:before {
    right: -1.4rem;
}
.cate-item-title .cate-text:after {
    left: -1.4rem;
}
.cate-item ul{
    display: flex;
    flex-wrap:wrap;
}
.cate-item ul li {
    width: 33.33%;
    height: 4.2rem;
    font-size: .65rem;
    text-align: center;
    padding: 10px;
    margin-bottom: 10px;
}
.cate-item ul li img{
    display: block;
    margin: 0 auto;
}