.container background: white; border-radius: 20px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); max-width: 500px; width: 100%; padding: 40px; text-align: center; transition: transform 0.3s ease;
.features margin-top: 30px; text-align: left; border-top: 1px solid #e0e0e0; padding-top: 20px; download .net framework 4.5 offline installer
.features li:before content: "✓"; color: #667eea; position: absolute; left: 0; font-weight: bold; .container background: white
h1 color: #333; margin-bottom: 10px; font-size: 28px; box-shadow: 0 20px 60px rgba(0
.container:hover transform: translateY(-5px);
.info-box p color: #555; font-size: 14px; line-height: 1.6; margin: 5px 0;
.download-btn:hover:not(:disabled) transform: scale(1.05); box-shadow: 0 10px 20px rgba(102,126,234,0.4);