/*------------ article ------------*/
.article-list {
    margin: 0 -3.5px;
}
.article-list .item {
    position: relative;
    box-sizing: border-box;
    width: calc(100% / 4);
    padding: 0 3.5px;
    margin-bottom: 40px;
}
.article-list .item:nth-child(4n+1) {
    clear: left;
}
.article-list .box {
    position: relative;
    box-sizing: border-box;
    margin: 0 auto;
    padding: 0;
}
.article-list .box .cover{
    font-size: 0;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    z-index: 30;
}
.article-list .pic {
    position: relative;
    overflow: hidden;
}
.article-list .txt {
    position: relative;
    box-sizing: border-box;
    padding: 15px 13px 0;
}
.article-list .name {
    position: relative;
    box-sizing: border-box;
    margin: 0 0 10px;
    color: #333333;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 1px;
    height: 28px;
    line-height: 28px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: 'Noto Serif TC', serif;
    transition: all .5s ease;
}
.article-list .description {
    position: relative;
    box-sizing: border-box;
    color: #878787;
    font-size: 16px;
    letter-spacing: 2px;
    line-height: 24px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 24px;
}
/*keyword*/
.keyword_box{
    position: relative;
    margin: 10px 0 0;
    padding: 0 13px;
    z-index: 35;
}
.article-list .keyword_box li a,
.keyword_box li a{
    display: inline;
    margin-bottom: 4px;
    margin-right: 2px;
    padding-bottom: 3px;
    color: #AAAAAA;
    line-height: 1;
    font-size: 14px;
    letter-spacing: 1px;
    transition: all .5s ease;
}
.keyword_box li:last-child a:after{
    display: none;
}
.keyword_box li a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: 0;
    height: 1px;
    background: #aaa;
    transition: all .5s ease;
}
.keyword_box li:hover a::before {
    width: 100%;
}
.keyword_box.detail{
    margin: 16px auto 0;
}   
.article_detail .pic{
    margin-bottom: 15px;
}
/*/keyword*/
/*------------ /article ------------*/
/*------------ content ------------*/
.article-intro {
    position: relative;
    box-sizing: border-box;
    display: flex;
    flex-wrap: wrap;
}
.ar-intro {
    box-sizing: border-box;
    margin: 0 auto 0 0;
    flex: 1 1 890px; 
}
.article-header {
    position: relative;
    box-sizing: border-box;
    margin: 0 0 50px;
}
.article-header .title {
    position: relative;
    box-sizing: border-box;
    text-align: left;
    margin: 0 0 20px;
    padding-bottom: 20px;
    color: #333333;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 2px;
    line-height: 1.4;
    font-family: 'Noto Serif TC', serif;
}
.article-header .title::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 1px;
    background: #CCCCCC;
}
.gallery {
    display: none;
}
.article-detail  {
    position: relative;
    box-sizing: border-box;
    padding: 0;
}
.ar-intro .keyword_box {
    margin: 120px 0 0;
}
.related-box {
    position: relative;
    box-sizing: border-box;
    margin: 90px 0 0 90px;
    flex: 0 0 320px;
}
.related-box .item a.cover {
    font-size: 0;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    z-index: 30;
}
.related-box .pic-box {
    position: relative;
}
.related-box .pic-box img{
    width: 100%;
}
.related-box .pic {
    display: block;
    position: relative;
    overflow: hidden;
}
.related-box .txt {
    position: relative;
    box-sizing: border-box;
    padding: 15px 13px 0;
}
.related-box .name {
    position: relative;
    box-sizing: border-box;
    margin: 0 0 10px;
    color: #333333;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 1px;
    height: 28px;
    line-height: 28px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: 'Noto Serif TC', serif;
    transition: all .5s ease;
}
.related-box .description {
    position: relative;
    box-sizing: border-box;
    color: #878787;
    font-size: 16px;
    letter-spacing: 2px;
    line-height: 24px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 24px;
}
.related-box .keyword_box {
    margin: 10px 0 0;
}
/*------------ /content ------------*/
/*------------ rwd ------------*/
@media screen and (max-width: 1280px) {
    .article-list .item {
        width: calc(100% / 3);
    }
    .article-list .item:nth-child(4n+1) {
        clear: none;
    }
    .article-list .item:nth-child(3n+1) {
        clear: left;
    }
    .article-list .name,
    .related-box .name {
        font-size: 18px;
    }
}
@media screen and (max-width: 1000px) {
    .article-list .item {
        width: calc(100% / 2);
    }
    .article-list .item:nth-child(3n+1) {
        clear: none;
    }
    .article-list .item:nth-child(2n+1) {
        clear: left;
    }
    .article-list .name,
    .related-box .name {
        font-size: 16px;
    }
    .article-list .description,
    .related-box .description {
        font-size: 15px;
    }
    .related-box {
        margin: 30px 0 0 0;
    }
    .article-header {
        margin: 0 0 30px;
    }
    .article-header .title {
        margin: 0 0 15px;
        padding-bottom: 20px;
        font-size: 18px;
    }
    .ar-intro .keyword_box {
        margin: 30px 0 0;
        padding: 0;
    }
    .article-detail {
        padding: 15px 0 0;
    }
}
@media screen and (max-width: 600px) {
    .article-list .item {
        width: 100%;
    }
    .article-list .item:nth-child(2n+1) {
        clear: none;
    }
    .article-list .item:nth-child(n+1) {
        clear: left;
    }
    .related-box {
        width: 100%;
        max-width: unset;
        padding: 0;
        margin: 0;
        display: block;
    }
}