<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>系统维护中...</title>
    <style>
        /* 基础样式 */
        body {
            font-family: 'Helvetica Neue', Arial, sans-serif;
            background: #f5f7fa;
            color: #333;
            line-height: 1.6;
            margin: 0;
            padding: 0;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            text-align: center;
        }
        
        .maintenance-container {
            width: 600px;
            padding: 2rem;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            animation: fadeIn 0.8s ease-out;
        }
        
        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        /* 图标样式 */
        .maintenance-icon {
            font-size: 4rem;
            color: #3498db;
            margin-bottom: 1rem;
            display: inline-block;
            animation: spin 2s linear infinite;
        }
        
        /* 文字样式 */
        h1 {
            color: #2c3e50;
            margin-top: 0;
            font-size: 2.2rem;
        }
        
        p {
            margin-bottom: 1.5rem;
            color: #7f8c8d;
        }
        
        .highlight {
            color: #e74c3c;
            font-weight: bold;
        }
        
        /* 进度条样式 */
        .progress-container {
            width: 100%;
            background: #ecf0f1;
            border-radius: 5px;
            margin: 2rem 0;
            height: 10px;
        }
        
        .progress-bar {
            height: 100%;
            width: 65%;
            background: #3498db;
            border-radius: 5px;
            animation: progress 2s ease-in-out infinite;
        }
        
        @keyframes progress {
            0% { width: 65%; }
            50% { width: 75%; }
            100% { width: 65%; }
        }
        
        /* 响应式设计 */
        @media (max-width: 480px) {
            .maintenance-container {
                padding: 1.5rem;
                margin: 1rem;
            }
            
            h1 {
                font-size: 1.8rem;
            }
        }
    </style>
</head>
<body>
    <div class="maintenance-container">
        <!-- 维护图标 -->
        <div class="maintenance-icon">⚙️</div>
        
        <!-- 主标题 -->
        <h1>系统维护中</h1>
        
        <!-- 说明文字 -->
        <p>非常抱歉，暂时无法提供服务</p>
        <!-- <p>预计恢复时间：<span class="highlight">2024年4月10日 18:00</span></p> -->
        
        <!-- 进度条动画 -->
        <div class="progress-container">
            <div class="progress-bar"></div>
        </div>
        
        <!-- 联系信息 -->
        <!-- <p>如有紧急问题，请联系：<br>
        <a href="mailto:support@example.com">support@example.com</a></p> -->
        
        <!-- 可选：倒计时脚本 -->
        <!-- <div id="countdown"></div> -->
    </div>

    <!-- 如果需要倒计时功能，可以取消注释这段脚本 -->
    <!--
    <script>
        // 示例倒计时功能（需根据实际维护时间调整）
        const countdownDate = new Date("April 10, 2024 18:00:00").getTime();
        
        const updateCountdown = () => {
            const now = new Date().getTime();
            const distance = countdownDate - now;
            
            const hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
            const minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
            
            document.getElementById("countdown").innerHTML = 
                `剩余时间: ${Math.floor(hours)}小时${Math.floor(minutes)}分钟`;
        };
        
        updateCountdown();
        setInterval(updateCountdown, 60000);
    </script>
    -->
</body>
</html>
