body{
    padding-top: 88px;
}
.block-category {
    background: #ffffff;
    z-index: 500;
    position: fixed;
    left: 0px;
    right: 0px;
    top: 44px;
}

.block-category .class-nav-tab {
    position: relative;
    background: #e53737;
}

.block-category .class-nav-tab::after {
    content: "";
    display: block;
    position: absolute;
    right: 0px;
    top: 0px;
    bottom: 0px;
    width: 50px;
    background: linear-gradient(to right, rgba(229, 55, 55, 0), rgba(229, 55, 55, 1));
    background: -webkit-linear-gradient(to right, rgba(229, 55, 55, 0), rgba(229, 55, 55, 1));
}

.block-category .class-nav-tab-inner {
    overflow: auto;
    white-space: nowrap;
    font-size: 0px;
    position: relative;
    -webkit-overflow-scrolling: touch;
    padding-right: 60px;
}

.block-category .class-nav-title {
    display: inline-block;
    font-size: 16px;
    vertical-align: middle;
    position: relative;
    color: rgba(255, 255, 255, 0.7);
}

.block-category .class-nav-tab .selected {
    color: #ffffff;
}

.block-category .class-nav-tab .selected::after {
    content: "";
    display: block;
    position: absolute;
    left: 20px;
    right: 30px;
    bottom: 4px;
    height: 3px;
    background: #ffffff;
    border-radius: 5px;
}

.block-category .class-nav-tab .name {
    display: block;
    padding: 10px 20px 10px 10px;
    position: relative;
}
.block-category .class-nav-tab .name::after{
    content: "";
    display: block;
    border:5px solid transparent;
    border-top: 5px solid #ffffff;
    position: absolute;
    top: 50%;
    right: 6px;
    margin-top: -3px;
}
.block-category .class-nav-item {
    position: fixed;
    left: 0px;
    right: 0px;
    top: 88px;
    bottom: 0px;
    background: rgba(0, 0, 0, 0.75);
    display: none;
}

.block-category .class-nav-content {
    padding: 10px;
    max-height: 100%;
    overflow: auto;
    background: #ffffff;
    border-radius: 0px 0px 12px 12px;
}

.block-category .class-nav-content::after {
    content: "";
    display: block;
    clear: both;
}

.block-category .class-nav-content li {
    float: left;
    width: 33.3%;
    padding: 2px;
    box-sizing: border-box;
}

.block-category .class-nav-content .li-hot {
    width: 66.6%;
}

.block-category .class-nav-content .li-count {
    display: none;
}

.block-category .class-nav-content li a {
    white-space: nowrap;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
    text-align: center;
    padding: 5px 5px;
    border-radius: 4px;
    background: #f7f7f7;
    position: relative;
    color: rgba(0, 0, 0, 0.9);
}

.block-category .class-nav-content li.selected a {
    color: #e53737;
    background: #ffe3e3;
}
/* 
.block-category .class-nav-content li.selected a::after {
    content: "";
    display: block;
    position: absolute;
    top: 0px;
    right: 0px;
    bottom: 0px;
    left: 0px;
    border: 1px solid #e53737;
    border-radius: 2px;
} */


.product-list {
    padding: 8px;
    transition: all 0.3s;
}
.product-list .product-waterfall-title {
    padding: 8px;
    background: url(https://wx.100xuexi.com/images/Mobile_bg0377_1.png) right 5px center no-repeat;
    background-size: 20px auto;
}
.product-list .product-waterfall-title .title-text{
    font-weight: bold;
    color: #e53737;
    padding-right: 5px;
}
.product-list .product-waterfall {
    position: relative;
    width: 100%;
}

.product-list .product-waterfall::after {
    content: "";
    display: block;
    clear: both;
}

.product-list .product-waterfall .product-item {
    width: 50%;
    position: relative;
    float: left;
}

.product-list .product-waterfall .product-item .item-inner {
    display: block;
    background: #ffffff;
    border-radius: 8px;
    margin: 8px;
    overflow: hidden;
    box-shadow: 1px 1px 5px 0px rgba(0, 0, 0, 0.05);
}

.product-list .product-waterfall .product-item .item-inner .item-imgbox {
    position: relative;
    overflow: hidden;
    margin: 8px;
    overflow: hidden;
    border-radius: 8px;
}
.product-list .product-waterfall .product-item .item-inner .item-imgbox-bg {
    background: #2f92f0;
    background-size: cover;
    filter: blur(50px);
    position: absolute;
    top: 0px;
    right: 0px;
    left: 0px;
    bottom: 0px;
    transform: scale(1.2);
    -webkit-transform: scale(1.2);
}
.product-list .product-waterfall .product-item .item-inner .item-imgbox-placeholder {
    display: block;
    background: url(https://wx.100xuexi.com/images/img_loading.png) center center no-repeat;
    background-size: contain;
    padding-top: 100%;
    position: relative;
    border-radius: 8px;
}

.product-list .product-waterfall .product-item .item-inner .item-imgbox img {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0px;
    top: 0px;
    opacity: 0;
}

.product-list .product-waterfall .product-item .item-inner .item-imgbox .vip-tag {
    position: absolute;
    right: 0px;
    top: 0px;
    color: #ffffff;
    border-radius: 0px 0px 0px 8px;
    font-size: 0;
    overflow: hidden;
    border-left: 1px solid rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.product-list .product-waterfall .product-item .item-inner .item-imgbox .vip-tag .vip-tag-text1 {
    padding: 4px;
    background: linear-gradient(to right, #f2debb, #e4b96a);
    color: #4d320e;
    line-height: 1;
    display: inline-block;
    vertical-align: middle;
    font-size: 12px;
}

.product-list .product-waterfall .product-item .item-inner .item-imgbox .vip-tag .vip-tag-text2 {
    padding: 4px;
    background: #4d320e;
    color: #ffffff;
    line-height: 1;
    display: inline-block;
    vertical-align: middle;
    font-size: 12px;
}

.product-list .product-waterfall .product-item .item-inner .item-link-box {
    position: relative;
}

.product-list .product-waterfall .product-item .item-inner .item-link-placeholder {
    display: block;
    background: #ffffff;
    padding-top: 80%;
}

.product-list .product-waterfall .product-item .item-inner .item-link-category {
    position: absolute;
    left: 0px;
    right: 0px;
    top: 50%;
    line-height: 30px;
    text-align: center;
    margin-top: -32px;
}

.product-list .product-waterfall .product-item .item-inner .item-link-category::before {
    content: "";
    display: block;
    width: 30px;
    height: 30px;
    background: url(https://wx.100xuexi.com/images/Mobile_bg0693.png) center center no-repeat;
    background-size: 30px 30px;
    margin: 0px auto 5px auto;
}

.product-list .product-waterfall .product-item .item-des {
    padding: 0px 12px 12px 12px;
}

.product-list .product-waterfall .product-item .item-title {
    margin-bottom: 5px;
    min-height: 4.5em;
    max-height: 4.5em;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    line-height: 1.5;
}

.product-list .product-waterfall .product-item .item-type {
    border-radius: 3px;
    border: 1px solid #888888;
    font-size: 12px;
    line-height: 14px;
    padding: 0px 2px;
    margin-right: 3px;
}

.product-list .product-waterfall .product-item .item-other {
    overflow: hidden;
    zoom: 1;
    line-height: 24px;
    height: 24px;
}

.product-list .product-waterfall .product-item .item-price {
    color: #e53737;
    font-family: 'Roboto', sans-serif;
    float: left;
    font-size: 12px;
}

.product-list .product-waterfall .product-item .rmb {
    color: #e53737;
    font-family: 'Roboto', sans-serif;
}

.product-list .product-waterfall .product-item .price-int {
    color: #e53737;
    font-family: 'Roboto', sans-serif;
    font-size: 20px;
}

.product-list .product-waterfall .product-item .price-decimal {
    color: #e53737;
    font-family: 'Roboto', sans-serif;
}

.product-list .product-waterfall .product-item .item-hot {
    float: right;
    font-size: 12px;
    background: url(https://wx.100xuexi.com/images/Mobile_bg0690.png) left center no-repeat;
    background-size: 12px 12px;
    padding-left: 16px;
    color: #888888;
    padding-top: 5px;
    line-height: 18px;
}

.product-list .load-status {
    padding: 16px 8px;
}

.product-list .load-status .btn-load-more {
    background: #ffffff;
    border-radius: 8px;
    text-align: center;
    display: block;
    line-height: 48px;
    color: #336699;
}

.product-list .load-status .is-loading {
    text-align: center;
    display: block;
    line-height: 48px;
    color: #888888;
}

.product-list .load-status .is-loading::before {
    content: "";
    display: inline-block;
    margin-right: 5px;
    background: url(https://wx.100xuexi.com/images/loading-1.gif) center center no-repeat;
    background-size: 16px;
    width: 16px;
    height: 16px;
    vertical-align: middle;
}

.product-list .load-status .has-loaded-all {
    text-align: center;
    display: block;
    line-height: 48px;
    color: #888888;
}

.product-list .empty-tips {
    text-align: center;
    font-size: 14px;
    padding: 16px;
    background: url(https://wx.100xuexi.com/images/Mobile_bg0328.png) center top 30px no-repeat;
    background-size: 86px 86px;
    padding: 120px 0px 30px 0px;
    position: relative;
}