body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 28px; font-weight: bold; color: #FF4500; text-shadow: 1px 1px 2px rgba(0,0,0,0.2); }
        nav { background: #FFD700; padding: 10px; border-radius: 5px; margin-bottom: 20px; }
        nav a { margin: 0 15px; text-decoration: none; color: #000; font-weight: bold; }
        .mobile-toggle { display: none; }
        h1 { color: #8B0000; border-bottom: 2px solid #FF4500; padding-bottom: 10px; }
        h2 { color: #B22222; margin-top: 30px; }
        h3 { color: #CD5C5C; }
        .download-btn, .login-btn { display: inline-block; background: #008000; color: white; padding: 10px 20px; margin: 15px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .login-btn { background: #4169E1; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .gallery { display: flex; gap: 15px; flex-wrap: wrap; }
        .gallery img { width: 30%; }
        footer { margin-top: 40px; padding: 20px; background: #333; color: white; border-radius: 5px; }
        @media (max-width: 768px) {
            .mobile-toggle { display: block; background: #FF4500; color: white; padding: 10px; text-align: center; cursor: pointer; }
            nav { display: none; }
            nav.active { display: block; }
            .gallery img { width: 100%; }
        }