Deep Sea Sci-Fi Anime Movie Poster

Cinematic sci-fi anime movie poster featuring a heavily armored cylindrical deep-sea submarine resting on a rugged ocean floor. The submarine features an industrial mecha design with a glowing cyan central viewport, a ring of secondary lights, two powerful downward spotlights, and the text "[NEREIS-01]" painted on its hull. Looming behind it is a [colossal bioluminescent anemone-like entity] with radiating tentacles tipped with glowing cyan light points. The surrounding dark teal abyss is dotted with glowing seabed flora under dramatic deep-sea lighting. In the top-left corner, typography includes the Japanese title "[深淵の地平線]", the subtitle "[ABYSS HORIZON]", and the tagline "[暗黒は、終わりじゃない。人類の新しい始まりだ。]". Small technical footer text at the bottom reads "INTERNATIONAL DEEP SEA TREATY ORGANIZATION" on the left and "IDTO-AB-013300-ALPHA" on the right.