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+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>测试页面 - TKMind</title>
+  <style>
+    *, *::before, *::after {
+      box-sizing: border-box;
+      margin: 0;
+      padding: 0;
+    }
+    body {
+      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
+      background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
+      min-height: 100vh;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      padding: 1rem;
+    }
+    .card {
+      background: #ffffff;
+      border-radius: 16px;
+      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
+      max-width: 480px;
+      width: 100%;
+      padding: 2.5rem 2rem;
+      text-align: center;
+      transition: transform 0.2s ease;
+    }
+    .card:hover {
+      transform: translateY(-2px);
+    }
+    h1 {
+      font-size: 1.75rem;
+      font-weight: 600;
+      color: #1a1a2e;
+      margin-bottom: 0.5rem;
+    }
+    .subheading {
+      font-size: 1rem;
+      color: #6b7280;
+      margin-bottom: 1.5rem;
+    }
+    p {
+      font-size: 0.95rem;
+      line-height: 1.6;
+      color: #374151;
+      margin-bottom: 2rem;
+    }
+    .btn {
+      display: inline-block;
+      background: #4f46e5;
+      color: #ffffff;
+      border: none;
+      border-radius: 8px;
+      padding: 0.75rem 2rem;
+      font-size: 1rem;
+      font-weight: 500;
+      cursor: pointer;
+      transition: background 0.2s ease, box-shadow 0.2s ease;
+    }
+    .btn:hover {
+      background: #4338ca;
+      box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
+    }
+    .btn:active {
+      transform: scale(0.97);
+    }
+    .footer {
+      margin-top: 2rem;
+      font-size: 0.8rem;
+      color: #9ca3af;
+    }
+    @media (max-width: 480px) {
+      .card {
+        padding: 1.5rem 1rem;
+      }
+      h1 {
+        font-size: 1.4rem;
+      }
+    }
+  </style>
+</head>
+<body>
+  <div class="card">
+    <h1>Hello, John! 👋</h1>
+    <div class="subheading">欢迎来到 TKMind 测试页面</div>
+    <p>
+      这是一个简洁的测试页面，用于验证 TKMind 平台的基本渲染能力。
+      您可以点击下方按钮触发一个简单的 JavaScript 弹窗，确认页面交互功能正常。
+    </p>
+    <button class="btn" onclick="alert('测试成功！')">点击测试</button>
+    <div class="footer" id="dateFooter"></div>
+  </div>
+  <script>
+    (function() {
+      const now = new Date();
+      const year = now.getFullYear();
+      const month = String(now.getMonth() + 1).padStart(2, '0');
+      const day = String(now.getDate()).padStart(2, '0');
+      document.getElementById('dateFooter').textContent = year + '-' + month + '-' + day;
+    })();
+  </script>
+</body>
+</html>
