<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>not found</title>
  <style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      background-color: #fff;
    }
    
    .container {
      padding-inline: 16px;
      margin-inline: auto;
      max-width: 1440px;
    }
    
    .flex {
      display: flex;
    }
    
    .flex-col {
      flex-direction: column;
    }
    
    .items-center {
      align-items: center;
    }
    
    .justify-center {
      justify-content: center;
    }
    
    .h-screen {
      height: 100vh;
    }
    
    .text-4xl {
      font-size: 2.25rem;
      line-height: 2.5rem;
    }
    
    .font-bold {
      font-weight: 700;
    }
    
    .text-2xl {
      font-size: 1.5rem;
      line-height: 2rem;
    }
    
    .btn-black {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 1px solid #181819;
      padding: 10px 32px;
      font-size: 14px;
      color: #181819;
      text-decoration: none;
      transition: all 0.3s ease;
      cursor: pointer;
      background: transparent;
    }
    
    .btn-black:hover {
      background-color: #181819;
      color: #fff;
    }
    
    h1 {
      display: none;
    }
    
    img {
      max-width: 100%;
      height: auto;
      margin-bottom: 24px;
    }
    
    .text-2xl {
      color: #484A4D;
      margin-bottom: 32px;
    }
    
    @media (min-width: 768px) {
      .container {
        padding-inline: 24px;
      }
      
      .text-4xl {
        font-size: 2.5rem;
        line-height: 2.75rem;
      }
      
      .text-2xl {
        font-size: 1.75rem;
        line-height: 2.25rem;
      }
    }
    
    @media (min-width: 1024px) {
      .container {
        padding-inline: 32px;
      }
    }
    
    @media (min-width: 1280px) {
      .container {
        padding-inline: 32px;
      }
    }
    
    @media (min-width: 1536px) {
      .container {
        max-width: 1440px;
        padding-inline: 0;
      }
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="flex flex-col items-center justify-center h-screen">
      <h1 class="text-4xl font-bold">404</h1>
      <img src="https://fe-assets-test.oss-cn-beijing.aliyuncs.com/img/2025/08/27/1756277398914_0XMolC1j_ic_404.6443250c.png" alt="404">
      <a href="/" class="btn-black">返回首页</a>
    </div>
  </div>
</body>
</html>