// 未登录：登录注册按钮
document.write('<div style="display:flex;gap:12px;align-items:center;">');
document.write('  <a href="javascript:void(0)" onclick="ajaxlogin()" style="padding:5px 14px; background:#1677ff; color:#fff; border-radius:4px; font-size:14px; text-decoration:none; line-height:1;">登录</a>');
document.write('  <a href="javascript:void(0)" onclick="ajaxlogin()" style="padding:5px 14px; background:#fff; color:#1677ff; border:1px solid #1677ff; border-radius:4px; font-size:14px; text-decoration:none; line-height:1;">注册</a>');
document.write('</div>');