body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; }
        header { background: linear-gradient(135deg, #FF6B35, #FF8E53); color: white; padding: 1rem; text-align: center; position: relative; }
        .logo { font-size: 2rem; font-weight: bold; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); }
        nav { display: flex; justify-content: center; gap: 1.5rem; margin: 1rem 0; }
        nav a { color: white; text-decoration: none; font-weight: 500; }
        .mobile-menu-btn { display: none; position: absolute; top: 1rem; right: 1rem; background: none; border: none; color: white; font-size: 1.5rem; }
        .container { max-width: 1200px; margin: 0 auto; padding: 1rem; }
        h1 { color: #2C3E50; border-bottom: 3px solid #FF6B35; padding-bottom: 0.5rem; }
        h2 { color: #34495E; margin-top: 2rem; }
        h3 { color: #7F8C8D; }
        .download-btn, .login-btn { display: inline-block; padding: 0.8rem 1.5rem; margin: 1rem 0; background: #FF6B35; color: white; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .img-container { text-align: center; margin: 2rem 0; }
        img { max-width: 100%; height: auto; border-radius: 8px; }
        footer { background: #2C3E50; color: white; text-align: center; padding: 2rem; margin-top: 2rem; }
        .tags { margin: 1rem 0; }
        .tag { background: #34495E; color: white; padding: 0.3rem 0.6rem; border-radius: 15px; margin: 0.2rem; display: inline-block; }
        @media (max-width: 768px) {
            nav { flex-direction: column; align-items: center; display: none; }
            nav.active { display: flex; }
            .mobile-menu-btn { display: block; }
            .logo { font-size: 1.5rem; }
        }