3D Model: Design A Large, Wide-bodied Autonomous Delivery Drone For Near-future Use. It Should Have A Low-profile, Rugged Industrial Design With Four Visible Heavy-duty Rotors Mounted On Solid Arms At The Corners. The Drone Should Feature Solar Panels On The Top Surface Or Rotor Arms, And A Wide, Secure Cargo Bay In The Center That Looks Like A Real-world Delivery Box. All Tech Like Facial Recognition, Voice Authentication, And Thermal Sensing Must Be Fully Integrated Inside The Drone Body — No Visible Sensors Or Cameras. Use A Matte Carbon-fiber Texture With Dark Grey And Electric Blue Accents. Include A Smart Landing Pad With Wireless Charging And A GPS Beacon. The Overall Design Should Feel Grounded And Realistic, Similar To Commercial Drones