document.writeln("<style>li {    float: right;    color: #666;    font-size:16px;    line-height:30px;    list-style:none;}li:first-child {    float: left;}li a {    color: #666;}li a:hover {    color: #0157b3;}</style>  <li>上一篇：<a href=\"http://www.tianyuan.gov.cn/c16332/20220131/i1823582.html\">用气安全</a></li>  <li>下一篇：<a href=\"http://www.tianyuan.gov.cn/c16332/20220131/i1823580.html\">冬季安全贴士</a></li>");