.gallery img {
    transition: -webkit-filter .4s,filter .4s;
    filter: grayscale(0);
    -webkit-filter: grayscale(0);
    max-width: 100%
}

.gallery img:hover {
    filter: grayscale(100%);
    -webkit-filter: grayscale(100%)
}

.gallery.gallery2 a {
    width: 23%
}

.gallery a {
    width: 48%;
    display: inline-block;
    overflow: hidden;
    margin: .5%;
    box-shadow: 0 0 4px -1px #000;
    text-align: center
}

.richtext, .richtext * {
    font-display:swap;
    font-family: 'Lucida Grande', 'Microsoft Yahei';
    font-size: 16px;
    line-height: 1.6em;
}
.product-detail{
    text-align:center;
}
.richtext h1, .richtext h2, .richtext h3, .richtext h4, .richtext h5, .richtext h6 {
    font-weight: bold;
}
.richtext img {
    max-width: 100%;
    height: initial;
}
.richtext table {
    width: 100%;
}
.richtext table tr td {
    padding: 3px 10px;
    border: solid 1px #ddd;
    word-break:break-all;
    font-size: 13px;
}
.richtext table tr td:nth-child(2){
    text-align:left;
}
.richtext table tr {
    background: #fff;
}
.richtext strong {
    font-weight: bold;
}
.richtext em {
    font-style: italic;
}
.richtext p {
    margin: 0;
    padding: 0;
    margin-bottom: 15px;
}
.richtext a {
    text-decoration: underline;
}