/* pc/article/article-about.html · style block 1 */
.cai2 .btn{
        color: white;!important;
    }
    /* 关于页页面级标题：为 AI 与搜索引擎提供明确主题 */
    .about-head{
        padding: 56px 0 0;
    }
    .about-h1{
        font-size: 32px !important;
        font-weight: 700 !important;
        color: #111f2c !important;
        margin: 0 0 24px !important;
        line-height: 1.3 !important;
    }
    /* 区块标题由 div 升级为 h2 后，抵消浏览器默认上边距 */
    .jshao .bt{
        margin-top: 0;
    }
    .jshao .sanx .sanx_bt{
        font-weight: 700;
    }