Seedance 1.5 Pro Video Action: 3D Parallax. The camera Orbits slowly around the mine to reveal the spikes. The spectral hand materialises (opacity fade in) and grabs the chain. The chain pulls tight with tension. Camera Movement: Orbit / Arc Shot (Slow) Audio Prompt (NO MUSIC): [SFX ONLY] Underwater groaning. The sharp, metallic creak of a rusty chain under tension. A singular, ominous sonar 'ping' or metallic clang.