Create an image depicting a cutting-edge petrol station located on the sea. The station features a single, futuristic gas tank designed specifically for fueling speedboats. The tank stands on a small platform jutting out from the water, providing a stable base despite its compact size. Above the tank, a striking shading structure composed of thin, sleek lines casts dynamic patterns of light and shadow. The structure exudes a sense of modernity and minimalism, with clean lines and geometric shapes defining its aesthetic. Illuminate the scene with subtle lights, enhancing the station's futuristic ambiance while seamlessly blending into the surrounding seascape.