One Sword Breaks Dawn Video Prompt for Seedance 2.0 (Fantasy Action)

16:9 landscape, cinematic Chinese animation visuals, golden-white holy light color palette.
0-3 seconds: Above the cliff, dark clouds gather. A young swordsman kneels on the ground, both hands gripping an ancient sword embedded in the rock. He has a baby face with round eyes and single eyelids, his messy black hair soaked with sweat. Runes flow around the ancient sword, emitting a humming sound. The camera slowly rotates and descends from an overhead view.
4-7 seconds: In the sky, a demon army bears down. The leading demon general holds a black battle halberd. He has a square face with a full beard, green ghost fire burning in his eye sockets. He waves his hand to signal the army to attack. Countless black arrows shoot toward the young swordsman like locusts. The camera rapidly pushes in.
8-12 seconds: The young swordsman suddenly pulls out the ancient sword. Golden-white light surges into the sky and disperses the dark clouds. The dragon patterns on the blade awaken, emitting a dragon roar. The young swordsman swings his sword, sending out golden sword energy that turns all arrows to dust. The camera follows the trajectory of the sword energy, advancing at high speed.
13-15 seconds: The young swordsman steps into the air and rises. Behind him, a golden giant dragon phantom appears. He strikes at the demon general with one sword. The demon general raises his halberd to block, but his weapon is severed by the sword, and he is split open from shoulder to lower body. Golden light covers the entire battlefield. The demon army retreats in terror. The image freezes on the silhouette of the young swordsman holding his sword and looking down, with sunlight piercing through the clouds behind him.
Sound effects: sword hum, earth-shaking dragon roar, arrows shattering, demon clan's shocked cries.
Prohibited: any text, subtitles, LOGO, or watermarks.