<?php
/**
 * 紫鸟超级浏览器下载跳转页面
 * 根据 platform 参数跳转到对应的下载链接
 */

// 获取平台参数
$platform = isset($_GET['platform']) ? $_GET['platform'] : '';

// 各平台的下载链接（示例链接，请替换为实际下载链接）
$downloadLinks = [
    'windows' => [
        'url' => 'https://download.example.com/super-browser-windows.exe',
        'name' => '紫鸟超级浏览器 Windows 版'
    ],
    'mac' => [
        'url' => 'https://download.example.com/super-browser-mac.dmg',
        'name' => '紫鸟超级浏览器 macOS 版'
    ],
    'linux' => [
        'url' => 'https://download.example.com/super-browser-linux.deb',
        'name' => '紫鸟超级浏览器 Linux 版'
    ],
    'android' => [
        'url' => 'https://download.example.com/super-browser-android.apk',
        'name' => '紫鸟超级浏览器 Android 版 (64位)'
    ],
    'android32' => [
        'url' => 'https://download.example.com/super-browser-android32.apk',
        'name' => '紫鸟超级浏览器 Android 版 (32位)'
    ],
    'ios' => [
        'url' => 'https://apps.apple.com/app/ziniao/id123456789',
        'name' => '紫鸟超级浏览器 iOS 版'
    ],
    'harmonyos' => [
        'url' => 'https://download.example.com/super-browser-harmonyos.apk',
        'name' => '紫鸟超级浏览器 HarmonyOS 版'
    ],
    'vps32' => [
        'url' => 'https://download.example.com/vps-import-32.exe',
        'name' => '紫鸟 VPS 导入工具 32位'
    ],
    'vps64' => [
        'url' => 'https://download.example.com/vps-import-64.exe',
        'name' => '紫鸟 VPS 导入工具 64位'
    ],
    'windows11' => [
        'url' => 'https://download.example.com/super-browser-windows.exe',
        'name' => '紫鸟超级浏览器 Windows 11 版'
    ]
];

// 默认回退页面
$fallbackPage = 'download.html';

// 检查平台是否有效
if (empty($platform) || !isset($downloadLinks[$platform])) {
    // 无参数或无效参数，跳转回下载页面
    header('Location: ' . $fallbackPage);
    exit;
}

// 获取下载信息
$downloadInfo = $downloadLinks[$platform];
?>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <meta http-equiv="refresh" content="3;url=<?php echo htmlspecialchars($downloadInfo['url']); ?>">
    <title>正在跳转下载 - <?php echo htmlspecialchars($downloadInfo['name']); ?></title>
    <style>
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(135deg, #F0F7FF 0%, #E5EFFF 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .container {
            text-align: center;
            padding: 40px;
            background: white;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0, 102, 255, 0.15);
            max-width: 500px;
            margin: 20px;
        }
        
        .icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 24px;
            background: linear-gradient(135deg, #0066FF 0%, #4D9FFF 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 40px;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }
        
        h1 {
            font-size: 24px;
            color: #1A1A2E;
            margin-bottom: 12px;
        }
        
        p {
            font-size: 16px;
            color: #5A6B7D;
            margin-bottom: 24px;
        }
        
        .product-name {
            font-weight: 600;
            color: #0066FF;
        }
        
        .btn {
            display: inline-block;
            padding: 14px 32px;
            background: linear-gradient(135deg, #0066FF 0%, #0052CC 100%);
            color: white;
            text-decoration: none;
            border-radius: 10px;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(0, 102, 255, 0.4);
        }
        
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 102, 255, 0.5);
        }
        
        .countdown {
            margin-top: 20px;
            font-size: 14px;
            color: #8A99AA;
        }
        
        .spinner {
            width: 40px;
            height: 40px;
            border: 3px solid #E4EBF3;
            border-top-color: #0066FF;
            border-radius: 50%;
            margin: 24px auto;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        .fallback-link {
            display: block;
            margin-top: 20px;
            color: #5A6B7D;
            font-size: 14px;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .fallback-link:hover {
            color: #0066FF;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="icon">⬇️</div>
        <h1>准备开始下载</h1>
        <p>即将下载：<span class="product-name"><?php echo htmlspecialchars($downloadInfo['name']); ?></span></p>
        
        <div class="spinner"></div>
        
        <a href="<?php echo htmlspecialchars($downloadInfo['url']); ?>" class="btn">
            立即下载
        </a>
        
        <p class="countdown" id="countdown">页面将在 3 秒后自动跳转...</p>
        
        <a href="<?php echo $fallbackPage; ?>" class="fallback-link">
            如果没有自动跳转，请点击这里
        </a>
    </div>
    
    <script>
        // 倒计时提示
        let seconds = 3;
        const countdownEl = document.getElementById('countdown');
        
        const timer = setInterval(() => {
            seconds--;
            if (seconds > 0) {
                countdownEl.textContent = '页面将在 ' + seconds + ' 秒后自动跳转...';
            } else {
                clearInterval(timer);
                countdownEl.textContent = '正在跳转...';
            }
        }, 1000);
        
        // 直接触发下载（作为备用）
        // window.location.href = '<?php echo htmlspecialchars($downloadInfo['url']); ?>';
    </script>
</body>
</html>
