巨型机甲对战巨龙

Subject: a towering humanoid mech and a massive scaled dragon. Action: the mech fires charged energy beams from its forearms; the dragon dodges with agile aerial flips, then closes for a clawed strike; the mech twists at the waist to block, sparks fly; lightning crackles as their powers clash. Scene: a crumbling city, columns of smoke rising. Light: stormy overcast key, harsh lightning bursts on every clash. Camera: angles switch between wide establishing of the duel, intense close-ups of the mech's targeting visor and the dragon's eyes, and a low hero shot on the final clash. Style: photoreal blockbuster cinematic, anamorphic feel. Audio: deep mech servo, dragon roar, lightning crack, orchestral hit. Constraints: no watermark, no text, no Logo, no extra limbs, no twin dragons.