diff --git a/src/index.css b/src/index.css
index adc51c4..1b351bf 100644
--- a/src/index.css
+++ b/src/index.css
@@ -183,3 +183,21 @@ dd { font-size: .9rem; }
 .setup-done { text-align: center; }
 .setup-done h2 { color: var(--success); margin-bottom: 12px; }
 @keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
+
+
+/* Monitor */
+.monitor-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; margin-top: 12px; }
+.monitor-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; }
+.monitor-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 8px; }
+.monitor-metrics { margin: 8px 0; font-size: .9rem; }
+.monitor-admin { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
+
+.status-ok { background: var(--success); }
+.status-error { background: var(--danger); }
+.status-pending { background: var(--warning); }
+.status-online { background: var(--success); }
+.status-offline { background: var(--danger); }
+
+.btn-secondary { background: none; border: 1px solid var(--border); color: var(--text); padding: 6px 12px; border-radius: 6px; cursor: pointer; }
+.btn-danger { background: var(--danger); color: #fff; border: none; padding: 6px 12px; border-radius: 6px; cursor: pointer; }
+.btn-danger:hover { opacity: .9; }
diff --git a/src/pages/MonitorPage.tsx b/src/pages/MonitorPage.tsx
index b739ab2..8c00785 100644
--- a/src/pages/MonitorPage.tsx
+++ b/src/pages/MonitorPage.tsx
@@ -11,6 +11,8 @@ interface ProviderRow {
   fetched_at?: string | null
   reset_at?: string | null
   window?: string | null
+  used?: number | null
+  limit?: number | null
 }
 
 interface ServerRow {
@@ -144,102 +146,139 @@ export default function MonitorPage() {
 
   const createChallenge = async (id: number) => {
     const r = await api.post<{ identifier: string; challenge_uuid: string; expires_at: string }>('/monitor/admin/servers/' + id + '/challenge')
-    alert('identifier=' + r.data.identifier + '\nchallenge_uuid=' + r.data.challenge_uuid + '\nexpires_at=' + r.data.expires_at)
+    alert('identifier=' + r.data.identifier + ' | challenge_uuid=' + r.data.challenge_uuid + ' | expires_at=' + r.data.expires_at)
   }
 
-  if (loading) return <div className='loading'>Monitor loading...</div>
-  if (!data) return <div className='loading'>Monitor load failed</div>
+  if (loading) return <div className="loading">Monitor loading...</div>
+  if (!data) return <div className="loading">Monitor load failed</div>
 
   return (
-    <div>
+    <div className="dashboard monitor-page">
       <h2>📡 Monitor</h2>
 
-      <section>
-        <h3>Issue 概览（24小时窗口）</h3>
-        <ul>
-          <li>所有项目总 Issue：{data.issues.total_issues}</li>
-          <li>24小时新增：{data.issues.new_issues_24h}</li>
-          <li>24小时已处理（resolved/closed）：{data.issues.processed_issues_24h}</li>
-        </ul>
-      </section>
+      <div className="stats-grid">
+        <div className="stat-card total">
+          <span className="stat-number">{data.issues.total_issues}</span>
+          <span className="stat-label">总 Issues</span>
+        </div>
+        <div className="stat-card" style={{ borderLeftColor: 'var(--accent)' }}>
+          <span className="stat-number">{data.issues.new_issues_24h}</span>
+          <span className="stat-label">24小时新增</span>
+        </div>
+        <div className="stat-card" style={{ borderLeftColor: 'var(--success)' }}>
+          <span className="stat-number">{data.issues.processed_issues_24h}</span>
+          <span className="stat-label">24小时已处理</span>
+        </div>
+      </div>
 
-      <section>
-        <h3>Provider Usage</h3>
-        {data.providers.length === 0 ? <p>暂无 provider 账号</p> : (
-          <ul>
-            {data.providers.map((p) => (
-              <li key={p.account_id}>
-                <strong>{p.provider}</strong> / {p.label} · status: {p.status}
-                {p.usage_pct !== null ? (' · usage: ' + p.usage_pct + '%') : ''}
-                {p.reset_at ? (' · reset: ' + p.reset_at) : ''}
-                {p.window ? (' · window: ' + p.window) : ''}
-                {p.fetched_at ? (' · updated: ' + p.fetched_at) : ''}
-                {p.error ? (' · error: ' + p.error) : ''}
-              </li>
-            ))}
-          </ul>
+      <div className="section">
+        <div className="page-header">
+          <h3>Provider Usage</h3>
+          <span className="text-dim">更新于 {data.generated_at}</span>
+        </div>
+        {data.providers.length === 0 ? <p className="empty">暂无 provider 账号</p> : (
+          <table>
+            <thead>
+              <tr>
+                <th>Provider</th>
+                <th>Label</th>
+                <th>Usage</th>
+                <th>Window</th>
+                <th>Reset</th>
+                <th>Status</th>
+                <th>Updated</th>
+              </tr>
+            </thead>
+            <tbody>
+              {data.providers.map((p) => (
+                <tr key={p.account_id}>
+                  <td>{p.provider}</td>
+                  <td>{p.label}</td>
+                  <td>{p.usage_pct !== null ? p.usage_pct + '%' : '-'}</td>
+                  <td>{p.window || '-'}</td>
+                  <td>{p.reset_at || '-'}</td>
+                  <td><span className={
+                    'badge ' + (p.status === 'ok' ? 'status-ok' : p.status === 'error' ? 'status-error' : 'status-pending')
+                  }>{p.status}</span></td>
+                  <td>{p.fetched_at || '-'}</td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
         )}
-      </section>
+      </div>
 
-      <section>
+      <div className="section">
         <h3>服务器监测</h3>
-        {data.servers.length === 0 ? <p>暂无监测服务器</p> : (
-          <div>
+        {data.servers.length === 0 ? <p className="empty">暂无监测服务器</p> : (
+          <div className="monitor-grid">
             {data.servers.map((s) => (
-              <div key={s.server_id} style={{ marginBottom: 12, padding: 12, border: '1px solid #ddd', borderRadius: 8 }}>
-                <div>
-                  <strong>{s.display_name}</strong> ({s.identifier}) · {s.online ? '🟢 在线' : '🔴 离线'}
+              <div key={s.server_id} className="monitor-card">
+                <div className="monitor-card-header">
+                  <div>
+                    <strong>{s.display_name}</strong>
+                    <div className="text-dim">{s.identifier}</div>
+                  </div>
+                  <span className={'badge ' + (s.online ? 'status-online' : 'status-offline')}>{s.online ? 'online' : 'offline'}</span>
                 </div>
-                <div>
-                  CPU: {s.cpu_pct ?? '-'}% · MEM: {s.mem_pct ?? '-'}% · DISK: {s.disk_pct ?? '-'}% · SWAP: {s.swap_pct ?? '-'}%
+                <div className="monitor-metrics">
+                  CPU {s.cpu_pct ?? '-'}% · MEM {s.mem_pct ?? '-'}% · DISK {s.disk_pct ?? '-'}% · SWAP {s.swap_pct ?? '-'}%
                 </div>
-                <div>OpenClaw: {s.openclaw_version || '-'}</div>
-                <div>Agents: {s.agents?.length || 0}</div>
+                <div className="text-dim">OpenClaw: {s.openclaw_version || '-'}</div>
+                <div className="text-dim">Agents: {s.agents?.length || 0}</div>
               </div>
             ))}
           </div>
         )}
-      </section>
+      </div>
 
       {canAdmin && (
-        <section style={{ marginTop: 24 }}>
-          <h3>Admin: Provider 管理</h3>
-          <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
-            <select value={providerForm.provider} onChange={(e) => setProviderForm({ ...providerForm, provider: e.target.value })}>
-              <option value='openai'>openai</option>
-              <option value='anthropic'>anthropic</option>
-              <option value='minimax'>minimax</option>
-              <option value='kimi'>kimi</option>
-              <option value='qwen'>qwen</option>
-            </select>
-            <input placeholder='label' value={providerForm.label} onChange={(e) => setProviderForm({ ...providerForm, label: e.target.value })} />
-            <input placeholder='credential' value={providerForm.credential} onChange={(e) => setProviderForm({ ...providerForm, credential: e.target.value })} />
-            <button onClick={testProvider}>测试连接</button>
-            <button onClick={addProvider}>添加账号</button>
-          </div>
-          {providerTestMsg && <p>{providerTestMsg}</p>}
-          <ul>
-            {providerAccounts.map((p) => (
-              <li key={p.id}>{p.provider} / {p.label} / {p.credential_masked} <button onClick={() => deleteProvider(p.id)}>删除</button></li>
-            ))}
-          </ul>
+        <div className="section">
+          <h3>Admin 管理</h3>
 
-          <h3>Admin: 服务器管理</h3>
-          <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
-            <input placeholder='identifier' value={serverForm.identifier} onChange={(e) => setServerForm({ ...serverForm, identifier: e.target.value })} />
-            <input placeholder='display_name' value={serverForm.display_name} onChange={(e) => setServerForm({ ...serverForm, display_name: e.target.value })} />
-            <button onClick={addServer}>添加服务器</button>
+          <div className="monitor-admin">
+            <div className="monitor-card">
+              <h4>Provider 账号</h4>
+              <div className="inline-form">
+                <select value={providerForm.provider} onChange={(e) => setProviderForm({ ...providerForm, provider: e.target.value })}>
+                  <option value='openai'>openai</option>
+                  <option value='anthropic'>anthropic</option>
+                  <option value='minimax'>minimax</option>
+                  <option value='kimi'>kimi</option>
+                  <option value='qwen'>qwen</option>
+                </select>
+                <input placeholder='label' value={providerForm.label} onChange={(e) => setProviderForm({ ...providerForm, label: e.target.value })} />
+                <input placeholder='credential' value={providerForm.credential} onChange={(e) => setProviderForm({ ...providerForm, credential: e.target.value })} />
+                <button className="btn-primary" onClick={testProvider}>测试连接</button>
+                <button className="btn-primary" onClick={addProvider}>添加账号</button>
+              </div>
+              {providerTestMsg && <p className="text-dim">{providerTestMsg}</p>}
+              <ul>
+                {providerAccounts.map((p) => (
+                  <li key={p.id}>{p.provider} / {p.label} / {p.credential_masked} <button className="btn-danger" onClick={() => deleteProvider(p.id)}>删除</button></li>
+                ))}
+              </ul>
+            </div>
+
+            <div className="monitor-card">
+              <h4>服务器</h4>
+              <div className="inline-form">
+                <input placeholder='identifier' value={serverForm.identifier} onChange={(e) => setServerForm({ ...serverForm, identifier: e.target.value })} />
+                <input placeholder='display_name' value={serverForm.display_name} onChange={(e) => setServerForm({ ...serverForm, display_name: e.target.value })} />
+                <button className="btn-primary" onClick={addServer}>添加服务器</button>
+              </div>
+              <ul>
+                {servers.map((s) => (
+                  <li key={s.server_id}>
+                    {s.display_name} ({s.identifier})
+                    <button className="btn-secondary" onClick={() => createChallenge(s.server_id)} style={{ marginLeft: 8 }}>生成挑战</button>
+                    <button className="btn-danger" onClick={() => deleteServer(s.server_id)} style={{ marginLeft: 8 }}>删除</button>
+                  </li>
+                ))}
+              </ul>
+            </div>
           </div>
-          <ul>
-            {servers.map((s) => (
-              <li key={s.server_id}>
-                {s.display_name} ({s.identifier})
-                <button onClick={() => createChallenge(s.server_id)} style={{ marginLeft: 8 }}>生成挑战</button>
-                <button onClick={() => deleteServer(s.server_id)} style={{ marginLeft: 8 }}>删除</button>
-              </li>
-            ))}
-          </ul>
-        </section>
+        </div>
       )}
     </div>
   )