<html>
<head>
    <meta charset="UTF-8">
    <title>404 Not Found</title>
    <meta name="robots" content="noindex,nofollow">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        p {
            color: #666;
            font-size: 16px;
        }
        #countdown {
            color: red;
            font-size: 1.2em;
            font-weight: bold;
        }
        .container {
            padding: 20px;
            text-align: center;
        }
        button {
            border: none;
            color: white;
            cursor: pointer;
            font-size: 16px;
            margin-top: 20px;
            padding: 10px 20px;
            border-radius: 50px;
            background: #1d7179;
            transition: all 0.3s ease;
            animation: slideDown 0.5s ease-out 0.3s both;
        }
        h1 span {
            color: #1d7179;
            display: inline-block;
            transform: translateZ(0);
            backface-visibility: hidden;
            animation: wave-text 1s ease-in-out infinite;
        }
        h1 span:nth-of-type(1) { animation-delay: 0.0s; }
        h1 span:nth-of-type(2) { animation-delay: 0.1s; }
        h1 span:nth-of-type(3) { animation-delay: 0.2s; }
        h1 span:nth-of-type(4) { animation-delay: 0.3s; }
        h1 span:nth-of-type(5) { animation-delay: 0.4s; }
        h1 span:nth-of-type(6) { animation-delay: 0.5s; }
        h1 span:nth-of-type(7) { animation-delay: 0.6s; }
        h1 span:nth-of-type(8) { animation-delay: 0.7s; }
        h1 span:nth-of-type(9) { animation-delay: 0.8s; }
        h1 span:nth-of-type(10) { animation-delay: 0.9s; }
        h1 span:nth-of-type(11) { animation-delay: 1.0s; }
        h1 span:nth-of-type(12) { animation-delay: 1.1s; }
        h1 span:nth-of-type(13) { animation-delay: 1.2s; }
        @keyframes wave-text {
            0% { 
                transform: translateY(0);
            }
            20% {
                transform: translateY(-15px);
            }
            40% {
                transform: translateY(0);
            }
        }
        img {
            width: 80%;
            max-width: 100%;
            animation: float 6s ease-in-out infinite;
        }
        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(29, 113, 121, 0.2);
        }
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
            100% { transform: translateY(0px); }
        }
        @keyframes slideDown {
            from { 
                opacity: 0;
                transform: translateY(-20px);
            }
            to { 
                opacity: 1;
                transform: translateY(0);
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        body {
            margin: 0;
            color: #333;
            display: flex;
            min-height: 100vh;
            align-items: center;
            justify-content: center;
            background-color: #f6f8f9;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }
    </style>
</head>
<body>
    <div class="container">
        <img alt="404 Not Found" title="404 Not Found" src="//static.szkoxian.com/assets/images/404.png">
        <h1>
            <span>4</span>
            <span>0</span>
            <span>4</span>
            &nbsp;
            <span>N</span>
            <span>O</span>
            <span>T</span>
            &nbsp;
            <span>F</span>
            <span>O</span>
            <span>U</span>
            <span>N</span>
            <span>D</span>
        </h1>
        <p style="animation: fadeIn 0.5s ease-out 0.3s both;">将在 <span id="countdown">15</span> 秒后跳转到首页...</p>
        <button onclick="window.location.href = '/';">立即跳转</button>
    </div>
    <script>
        var count = 15;
        var countdown = document.getElementById('countdown');
        var timer = setInterval(function() {
            count--;
            countdown.textContent = count;
            if (count <= 0) {
                clearInterval(timer);
                window.location.href = '/';
            }
        }, 1000);
    </script>
</body>
</html>