    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            padding: 20px;
            background-image: linear-gradient(to bottom, #e3f2fd, #f8f9fa);
            min-height: 100vh;
        }
        
        .container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 20px;
        }
        
        header {
            text-align: center;
            margin-bottom: 40px;
            padding: 30px 0;
            border-bottom: 1px solid #e0e0e0;
        }
        
        h1 {
            color: #007bff;
            font-size: 2.8rem;
            margin-bottom: 15px;
            font-weight: 700;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
        }
        
        .subtitle {
            font-size: 1.2rem;
            color: #6c757d;
            max-width: 700px;
            margin: 0 auto;
        }
        
        .download-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-bottom: 40px;
        }
        
        .download-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 123, 255, 0.12);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .download-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0, 123, 255, 0.2);
        }
        
        .card-header {
            background: #007bff;
            color: white;
            padding: 25px 20px;
            text-align: center;
        }
        
        .card-header i {
            font-size: 2.5rem;
            margin-bottom: 15px;
            display: block;
        }
        
        .card-content {
            padding: 25px 20px;
            flex-grow: 1;
        }
        
        .card-footer {
            padding: 0 20px 25px;
            text-align: center;
        }
        
        .btn-download {
            display: inline-block;
            background: #007bff;
            color: white;
            padding: 12px 25px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 2px solid #007bff;
            box-shadow: 0 4px 8px rgba(0, 123, 255, 0.2);
        }
        
        .btn-download:hover {
            background: white;
            color: #007bff;
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0, 123, 255, 0.3);
        }
        
        .card-header.alt1 { background: linear-gradient(135deg, #007bff, #00bfff); }
        .card-header.alt2 { background: linear-gradient(135deg, #00bfff, #00ced1); }
        .card-header.alt3 { background: linear-gradient(135deg, #00ced1, #1e90ff); }
        .card-header.alt4 { background: linear-gradient(135deg, #1e90ff, #007bff); }
        
        .btn-download.alt1 { background: linear-gradient(135deg, #007bff, #00bfff); border: none; }
        .btn-download.alt2 { background: linear-gradient(135deg, #00bfff, #00ced1); border: none; }
        .btn-download.alt3 { background: linear-gradient(135deg, #00ced1, #1e90ff); border: none; }
        .btn-download.alt4 { background: linear-gradient(135deg, #1e90ff, #007bff); border: none; }
        
        .btn-download.alt1:hover { background: white; color: #007bff; border: 2px solid #007bff; }
        .btn-download.alt2:hover { background: white; color: #00bfff; border: 2px solid #00bfff; }
        .btn-download.alt3:hover { background: white; color: #00ced1; border: 2px solid #00ced1; }
        .btn-download.alt4:hover { background: white; color: #1e90ff; border: 2px solid #1e90ff; }
        
        .stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        
        .stat-item {
            text-align: center;
            background: white;
            padding: 20px;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            min-width: 180px;
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: #007bff;
            margin-bottom: 5px;
        }
        
        footer {
            text-align: center;
            margin-top: 50px;
            padding: 25px 0;
            color: #6c757d;
            border-top: 1px solid #e0e0e0;
        }
        
        @media (max-width: 768px) {
            .download-grid {
                grid-template-columns: 1fr;
            }
            
            h1 {
                font-size: 2.2rem;
            }
        }
    </style>