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<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>123导航</title>
   
</head>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>留言板</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #f4f4f4;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
        }
        .container {
            background-color: #fff;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            width: 300px;
            text-align: center;
        }
        textarea {
            width: 100%;
            height: 100px;
            margin-bottom: 10px;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            resize: none;
        }
        button {
            padding: 10px 20px;
            background-color: #28a745;
            color: #fff;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }
        button:hover {
            background-color: #218838;
        }
        .message {
            margin-top: 20px;
            font-size: 14px;
            color: #333;
        }
    </style>
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<body>


   
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