<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>404 Not Found</title>
    <style>
        /* 全局样式 */
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
        }

        /* 容器样式 */
        .container {
            text-align: center;
            animation: fadeInUp 1s ease-out;
        }

        /* 标题样式 */
        h1 {
            font-size: 48px;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }

        /* 副标题样式 */
        p {
            font-size: 24px;
            margin-bottom: 40px;
        }

        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
    </style>
</head>

<body>
    <div class="container">
        <h1>404 Not Found</h1>
        <p>感谢您的耐心等待，我们正在全力以赴进行最后的准备工作。</p>
    </div>
</body>
</html>