body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; background-color: #f5f5f5; margin: 0; padding: 0; }
        header { background-color: #ff9900; color: white; padding: 1rem; text-align: center; position: relative; }
        header h1 { margin: 0; font-size: 2rem; }
        nav { display: flex; justify-content: center; gap: 1rem; margin: 1rem 0; }
        nav a { color: white; text-decoration: none; }
        .mobile-nav-toggle { display: none; position: absolute; right: 1rem; top: 1rem; background: none; border: none; color: white; font-size: 1.5rem; cursor: pointer; }
        @media (max-width: 768px) {
            nav { flex-direction: column; display: none; }
            .mobile-nav-toggle { display: block; }
            nav.active { display: flex; }
        }
        main { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; }
        section { margin-bottom: 2rem; background-color: white; padding: 1.5rem; border-radius: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
        h1 { color: #ff6600; font-size: 2.2rem; }
        h2 { color: #333; border-bottom: 2px solid #ff9900; padding-bottom: 0.5rem; margin-top: 1.5rem; }
        h3 { color: #666; margin-top: 1rem; }
        .download-btn, .login-btn { display: inline-block; padding: 0.8rem 1.5rem; background-color: #ff6600; color: white; text-decoration: none; border-radius: 5px; margin: 0.5rem 0; font-weight: bold; }
        .download-btn:hover, .login-btn:hover { background-color: #e05500; }
        img { max-width: 100%; height: auto; display: block; margin: 1rem auto; border-radius: 5px; }
        footer { background-color: #333; color: white; text-align: center; padding: 1.5rem; }
        footer a { color: #ff9900; text-decoration: none; }
        .tag { display: inline-block; background-color: #eee; color: #333; padding: 0.3rem 0.8rem; border-radius: 15px; margin: 0.2rem; }
        .tag a { color: inherit; text-decoration: none; }