/* 通配符选择所有元素，!important 强制覆盖 */
    * {
        font-family: "Microsoft YaHei", "微软雅黑", sans-serif !important;
    }

    /* 单独强化表单元素（部分浏览器表单元素默认不继承字体） */
    input, textarea, select, button, optgroup, p {
        font-family: "Microsoft YaHei", "微软雅黑", sans-serif !important;
    }
    
    h1, h2, h3, h4, h5, h6, p, div, span, a, ul, li, ol, dl, dt, dd,
    input, textarea, select, button, label, table, tr, td, th {
        font-family: "Microsoft YaHei", "微软雅黑", sans-serif !important;
    }