<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>页面未找到 - 404错误</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 20px;
            color: #333;
        }
        
        .container {
            max-width: 800px;
            width: 100%;
            text-align: center;
            padding: 40px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 20px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            position: relative;
            overflow: hidden;
        }
        
        .error-code {
            font-size: 120px;
            font-weight: 800;
            color: #4a6cf7;
            line-height: 1;
            margin-bottom: 10px;
            text-shadow: 3px 3px 0 rgba(74, 108, 247, 0.1);
        }
        
        .error-title {
            font-size: 32px;
            margin-bottom: 20px;
            color: #333;
        }
        
        .error-message {
            font-size: 18px;
            line-height: 1.6;
            margin-bottom: 30px;
            color: #666;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .animation-container {
            position: relative;
            height: 200px;
            margin: 40px 0;
        }
        
        .lost-illustration {
            width: 150px;
            height: 150px;
            background: #4a6cf7;
            border-radius: 50%;
            margin: 0 auto 20px;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            animation: float 3s ease-in-out infinite;
        }
        
        .lost-illustration::before {
            content: "?";
            font-size: 70px;
            color: white;
            font-weight: bold;
        }
        
        .search-icon {
            position: absolute;
            width: 40px;
            height: 40px;
            background: white;
            border-radius: 50%;
            top: 30px;
            right: 30px;
            animation: search 4s linear infinite;
        }
        
        .search-icon::before {
            content: "";
            position: absolute;
            width: 20px;
            height: 20px;
            border: 3px solid #4a6cf7;
            border-radius: 50%;
            top: 8px;
            left: 8px;
        }
        
        .search-icon::after {
            content: "";
            position: absolute;
            width: 10px;
            height: 3px;
            background: #4a6cf7;
            transform: rotate(45deg);
            top: 25px;
            left: 25px;
        }
        
        .action-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        
        .btn {
            padding: 14px 30px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        
        .btn-primary {
            background: #4a6cf7;
            color: white;
            box-shadow: 0 5px 15px rgba(74, 108, 247, 0.3);
        }
        
        .btn-primary:hover {
            background: #3a5ce5;
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(74, 108, 247, 0.4);
        }
        
        .btn-secondary {
            background: transparent;
            color: #4a6cf7;
            border: 2px solid #4a6cf7;
        }
        
        .btn-secondary:hover {
            background: rgba(74, 108, 247, 0.1);
            transform: translateY(-3px);
        }
        
        .suggestions {
            margin-top: 40px;
            text-align: left;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .suggestions h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #333;
            text-align: center;
        }
        
        .suggestions ul {
            list-style-type: none;
            padding: 0;
        }
        
        .suggestions li {
            padding: 10px 15px;
            margin-bottom: 10px;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 10px;
            transition: all 0.3s ease;
            border-left: 4px solid #4a6cf7;
        }
        
        .suggestions li:hover {
            background: rgba(255, 255, 255, 1);
            transform: translateX(5px);
        }
        
        .suggestions a {
            text-decoration: none;
            color: #333;
            display: block;
        }
        
        @keyframes float {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-15px);
            }
        }
        
        @keyframes search {
            0%, 100% {
                transform: translate(0, 0) rotate(0);
            }
            25% {
                transform: translate(30px, -20px) rotate(90deg);
            }
            50% {
                transform: translate(0, -40px) rotate(180deg);
            }
            75% {
                transform: translate(-30px, -20px) rotate(270deg);
            }
        }
        
        @media (max-width: 600px) {
            .error-code {
                font-size: 80px;
            }
            
            .error-title {
                font-size: 24px;
            }
            
            .error-message {
                font-size: 16px;
            }
            
            .action-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .btn {
                width: 100%;
                max-width: 250px;
            }
        }
    </style>
</head>
<body>
    <div class="container">
        <h1 class="error-code">404</h1>
        <h2 class="error-title">哎呀！页面找不到了</h2>
        <p class="error-message">
            您要查找的页面可能已被移动、删除或暂时不可用。请检查URL是否正确，或使用下面的导航返回网站。
        </p>
        
        <div class="animation-container">
            <div class="lost-illustration"></div>
            <div class="search-icon"></div>
        </div>
        
        <div class="action-buttons">
            <a href="/" class="btn btn-primary">返回首页</a>
            <a href="javascript:history.back()" class="btn btn-secondary">返回上一页</a>

        </div>
        
       
    </div>

    <script>
        // 添加一些简单的交互效果
        document.addEventListener('DOMContentLoaded', function() {
            const buttons = document.querySelectorAll('.btn');
            
            buttons.forEach(button => {
                button.addEventListener('mouseenter', function() {
                    this.style.transform = 'translateY(-3px)';
                });
                
                button.addEventListener('mouseleave', function() {
                    this.style.transform = 'translateY(0)';
                });
            });
            
            // 为建议链接添加点击效果
            const suggestionLinks = document.querySelectorAll('.suggestions a');
            suggestionLinks.forEach(link => {
                link.addEventListener('click', function(e) {
                    e.preventDefault();
                    // 在实际使用中，这里应该是真实的页面跳转
                    alert('在实际网站中，这将导航到: ' + this.getAttribute('href'));
                });
            });
        });
    </script>
</body>
</html>