.product{
    padding: 90px 0 60px;
}
.product-wrap{
    margin-top: 30px;
}
.product-nav{
    width: 100%;
    border: 1px solid #E8E8E8;
}
.product-nav li{
    border-bottom: 1px solid #E8E8E8;
    position: relative;
}

.product-nav>ul>li>a{
    background-color: #fff;
    border-bottom: 1px solid #E8E8E8;
}

.product-nav>ul>li:last-child>a{
    border-bottom: none;
}

.product-nav>ul>li a{
    padding-top: 12px;
    height: 51px;
    padding-bottom: 12px;
    padding-left: 20px;
    display: block;
    width: 100%;
    font-size: 18px;
    line-height: 27px;
    color: #333;
}

.product-nav>ul>li.active>a,
.product-nav>ul>li:hover>a{
    color: #fff;
    background-color: #241F9D;
}

.product-nav>ul>li ul.active{
    display: block;
}

.product-nav li ul{
    background-color: #f9f9f9;
    display: none;
}

.product-nav>ul ul li:last-child{
    border-bottom: none;
}

.product-nav>ul>li.active a.active{
    color: #241F9D;
    background-color: #D8D7FF;
}

.product-nav>ul>li i{
    width: 100%;
    height: 51px;
    font-style: normal;
    font-size: 20px;
    line-height: 40px;
    text-align: right;
    color: #fff;
    position: absolute;
    background-image: url(../img/icon_22.png);
    top: 0;
    right: 0;
    content: '';
    cursor: pointer;
    display: block;
    opacity: 1;
    z-index: 10;
    background-position: right 16px center;
    background-repeat: no-repeat;
}

.product-nav>ul>li.active i,
.product-nav>ul>li:hover i{
    background-image: url(../img/icon_23.png);
}

.product-picture {
    text-align: center;
    margin-top: 30px;
}

@media (max-width: 992px) {
    .product{
        padding: 30px 0;
    }
    
    .list-mobile .action-sheet {
            border-top-left-radius: 30px;
            border-top-right-radius: 30px;
            display: none;
            background: #fff;
            width: 100%;
            position: fixed;
            bottom: 0;
            z-index: 11111;
            left: 0;
            padding: 15px 0;
        }
    
        .list-mobile .action-sheet ul li {
            margin: 0 20px;
            color: #333;
            font-weight: 700;
            font-size: 18px;
            height: 42px;
            text-align: center;
            line-height: 42px;
            border-top: 1px solid #eee;
            overflow: hidden;
        }
    
        .list-mobile .action-sheet ul li.active a {
            color: #BC2121;
        }
    
        .list-mobile .action-sheet ul li:first-child {
            border-top: none;
        }
    
        .list-mobile .scroll-mask {
            height: 100%;
            overflow: scroll;
            overflow-y: hidden;
        }
    
        .list-mobile .mask {
            position: absolute;
            top: 0;
            display: none;
            height: 100vh;
            background: rgba(0, 0, 0, 0.4);
            z-index: 9999;
            width: 100%;
            left: 0;
        }
        
        .scroll-mask {
            height: 100%;
            overflow: scroll;
            overflow-y: hidden;
        }
}