body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .mobile-nav { display: none; background: #ff6b6b; color: white; padding: 10px; text-align: center; cursor: pointer; }
        @media (max-width: 768px) { .desktop-nav { display: none; } .mobile-nav { display: block; } }
        .logo { font-size: 28px; font-weight: bold; color: #ff4757; text-shadow: 1px 1px 2px #ccc; }
        nav a { margin: 0 10px; text-decoration: none; color: #ff4757; font-weight: 600; }
        h1 { color: #ff4757; border-bottom: 2px solid #ff9f43; padding-bottom: 10px; }
        h2 { color: #2ed573; }
        h3 { color: #5f27cd; }
        .download-btn { background: #ff9f43; color: white; padding: 10px 20px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 10px 0; }
        .login-btn { background: #1dd1a1; color: white; padding: 10px 20px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 10px 0; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tag { background: #dfe6e9; padding: 5px 10px; border-radius: 20px; margin: 5px; display: inline-block; }
        footer { margin-top: 40px; padding: 20px; background: #f1f2f6; }