body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 2px solid #FF6B35; }
        .logo { font-size: 28px; font-weight: bold; color: #FF6B35; }
        nav ul { display: flex; list-style: none; gap: 20px; }
        nav a { text-decoration: none; color: #333; }
        .mobile-menu-btn { display: none; background: #FF6B35; color: white; border: none; padding: 8px 12px; border-radius: 4px; }
        h1 { color: #FF6B35; font-size: 32px; margin-bottom: 20px; }
        h2 { color: #4A90E2; font-size: 24px; margin: 25px 0 15px; }
        h3 { color: #2E8B57; font-size: 20px; margin: 20px 0 10px; }
        .download-btn, .login-btn { display: inline-block; background: #FF6B35; color: white; padding: 12px 25px; margin: 15px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .img-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; border-radius: 8px; }
        footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid #ddd; }
        .tags { margin: 15px 0; }
        .tag { display: inline-block; background: #f0f0f0; padding: 5px 10px; margin-right: 8px; border-radius: 15px; text-decoration: none; color: #333; }
        @media (max-width: 768px) {
            nav { display: none; }
            .mobile-menu-btn { display: block; }
            .active-nav { display: block; position: absolute; top: 70px; left: 0; right: 0; background: white; padding: 15px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
            .active-nav ul { flex-direction: column; gap: 10px; }
        }