.nav_top{
    font-size: 13px;
}
.nav_name{
    color: #999;
}
.product_box{
    display: flex;
    justify-content: space-between;
    margin: 20px 0;
}
.product_info{
    width: 100%;
}
.product_img{
    width: 480px;
    min-width: 480px;
    height: 480px;
    background: #f6f6f6;
    border-radius: 23px;
    position: relative;
    margin-right: 40px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: -2px -2px 5px #fff, 2px 2px 5px #babecc;
    border-color: transparent;
}
.product_img img{
    max-width: 366px;
    max-height: 480px;
    margin: 0 auto;
    -o-object-fit: contain;
    object-fit: contain;
    display: block;
}
.product_title{
    font-size: 24px;
    font-weight: 600;
    color: #222;
    line-height: 36px;
    margin-bottom: 16px;
}
.product_store{
    font-size: 16px;
    font-weight: 400;
    color: #1273eb;
    line-height: 25px;
    margin-bottom: 20px;
}

.product_btn {
    margin-bottom: 25px;
    border-radius: 12px;
    background: #1373eb;
    width: 280px;
    padding: 14px 0;
    text-align: center;
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    line-height: 40px;
    cursor: pointer;
    margin-top: 30px;
}
.product_btn:hover {
    box-shadow: -2px -2px 5px #fff, 2px 2px 5px #babecc;
}
.product_btn:active {
    box-shadow: inset 1px 1px 2px #babecc, inset -1px -1px 2px #fff;
}
.product_tip{
    background: #f6f6f6;
    border-radius: 12px;
    padding: 16px;
    box-shadow: inset 2px 2px 5px #babecc, inset -5px -5px 10px #fff;
}
.tip_t{
    font-size: 14px;
    font-weight: 500;
    color: #222;
    line-height: 21px;
    margin-bottom: 8px;
}
.tip_c{
    font-size: 14px;
    font-weight: 400;
    color: #666;
    line-height: 21px;
}
#mobile_btn{
    display: none;
}
@media (max-width:880px) {
    .product_box{
        flex-wrap: wrap;
    }
    .product_img{
        width: 100%;
        margin-right: 0;
        min-width: auto;
        height: auto;
    }
    .product_info{
        margin-top: 5px;
        padding: 15px;
    }
    .product_btn{
        display: none;
    }
    #mobile_btn{
        display: block;
        background-color: #ffffff;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        padding: 10px 0;
        z-index: 99;
        border-top: 1px solid #e5e5e5;
    }
    #mobile_btn .product_btn{
        display: block;
        width: 95%;
        font-size: 16px;
        margin: 0 auto;
        padding: 11px 0;
        line-height: 25px;
    }
}
@media (max-width:750px) {
    .product_title{
        font-size: 14px;
        line-height: 21px;
        margin-bottom: 6px;
        font-weight: 400;
    }
    .product_img{
        width: 100%;
        min-width: 100%;
        height: 375px;
        border-radius: 0;
        margin-right: 0;
        margin-bottom: 12px;
        background: #f6f6f6;
    }
    .product_img img{
        max-width: 286px;
        max-height: 375px;
        border-radius: 10px;
    }
    .nav_top{
        background-color: #ffffff;
        padding: 10px;
    }
    .index_bottom .container{
        padding: 0;
    }
    .product_store{
        margin-bottom: 0;
        font-size: 12px;
    }
    .product_info .product_price .zk{
        display: block;
        padding: 4px 10px;
        background: #D3EBFD;
    }
    .product_info .product_price .price{
        font-size: 24px;
        margin-left: 10px;
    }
    .product_info{
        padding: 15px 5px;
    }
    .product_price{
        border-bottom: 0;
        padding-bottom: 5px;
    }
    .index_bottom{
        padding: 5px;
    }
}
@media (max-height:890px) {
    .product_img{
        min-width: 406px;
        height: 350px;
    }
    .product_btn{
        margin-top: 10px;
        margin-bottom: 10px;
    }
    .product_title{
        margin-bottom: 5px;
    }
}