footer {
            text-align: center;
            padding: 40px 0 40px;
        }

        .footer-list {
            margin-bottom: 40px;
            list-style: none;
        }

        .footer-list__item {
            text-align: center;
            padding: 8px;
        }

        .footer-list__item a {
            color: #979797;
            font-weight: bold;
            font-size: 13px;
        }

        @media (min-width: 980px) {
            .footer-list {
                display: flex;
                justify-content: center;
            }
        }

        .footer-list__item {
            text-align: center;
            padding: 8px;
        }

        @media (min-width: 980px) {
            .footer-list__item {
                padding: 0 16px;
            }
        }

        .footer-list__item a {
            color: #979797;
            font-weight: bold;
            font-size: 13px;
        }

        .footer-list__item a:hover {
            text-decoration: underline;
        }
        
        
               * {
    margin: 0;
    padding: 0;
}
.box {
    width: 100%;
    max-width: 700px;
    margin: auto;
}
.img {
    width: 100%;
    display: flex;
}
img {
    width: 100%;
    display: block;
}
p {
    font-size: 18px;
    line-height: 40px;
    margin: 15px 0;
}
.chanpin {
    width: 160px;
    height: 170px;
    background-color: red;
    overflow: hidden;
}
.chanpin img {
    width: 90%;
    display: block;
    margin: 10px auto;
}
li {
    list-style: none;
}
.ulist {
    display: flex;
    flex-wrap: wrap;
}
.ulist li {
    width: 100%;
    float: left;
    padding: 0.2rem;
    font-size: 1rem;
    color: #666;
    background-color: #fff;
    border: 2px solid #ccc;
    margin-right: 4px;
    margin-bottom: 4px;
    text-decoration: none;
    transition: all 0.3s linear 0s;
    border-radius: 0.4rem;
    cursor: pointer;
}
.active {
    background-color: #f00 !important;
    color: #fff !important;
}
.input {
    display: flex;
}
.input div:nth-child(1) {
    width: 40px;
    height: 35px;
    text-align: center;
    line-height: 35px;
    border: 1px solid #ccc;
    border-right: none;
}
.input div:nth-child(2) {
    width: 65px;
    height: 35px;
    border: 1px solid #ccc;
    line-height: 35px;
    text-align: center;
}
.input div:nth-child(3) {
    width: 40px;
    height: 35px;
    text-align: center;
    line-height: 35px;
    border: 1px solid #ccc;
    border-left: none;
}