Router.register('/login', async () => {
  setTimeout(() => {
    const btn = document.getElementById('login-btn');
    btn?.addEventListener('click', async () => {
      const u = document.getElementById('login-username').value;
      const p = document.getElementById('login-password').value;
      try {
        await API.login(u, p);
        await API.me().then(user => {
          const info = document.getElementById('user-info');
          if (info) info.textContent = user?.username || '未登录';
        }).catch(()=>{});
        location.href = '#/dashboard';
      } catch(e) {}
    });
  }, 0);
  return `<div class="grid cols-2">
    <div class="card">
      <div style="font-weight:600;margin-bottom:8px">管理员登录</div>
      <div class="field"><label>用户名</label><input id="login-username" class="input" /></div>
      <div class="field"><label>密码</label><input id="login-password" type="password" class="input" /></div>
      <div class="actions"><button id="login-btn" class="btn">登录</button></div>
    </div>
  </div>`;
});