<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title></title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            overflow: hidden;
            background: #000;
        }
        
        iframe {
            width: 100%;
            height: 100vh;
            border: none;
        }
    </style>
</head>
<body>
    <iframe id="random-page"></iframe>

    <script>
        // 页面列表
        const pages = [
            { url: "/web/static/200.html" },
            { url: "/web/static/404.html" },
            { url: "/web/static/502.html" }
        ];

        // 获取iframe元素
        const iframe = document.getElementById('random-page');
        
        // 加载随机页面
        function loadRandomPage() {
            // 随机选择一个页面
            const randomIndex = Math.floor(Math.random() * pages.length);
            const currentPage = pages[randomIndex];
            
            // 设置iframe的src
            iframe.src = currentPage.url;
        }
        
        // 页面加载完成后初始化
        window.addEventListener('load', loadRandomPage);
    </script>
</body>
</html>