[Quality and Technical Specs] Generate a 15s, 9:16 refs_generate AI video template for Xianxia Sci-Fi Gold Mecha. Style: xianxia science-fiction fusion with thunder, spirit energy, and heavy gold mecha assembly. The video must be polished, stable, rhythm-driven, visually coherent, and suitable for reusable template generation. [Hard Settings] 내 요소 1 is th
