Sora提示词："The smooth waters of

"The smooth waters of Lake Michigan, early morning light shining over the surface, soft ripples gently moving toward the shore, the horizon stretching into the distance." 根据前面文字描述生成9:16竖屏视频，视频不要出现文字或人物，视频风格以治愈为主，配上简单的背景声音，可以是风声、海浪或鸟叫等自然声音或舒缓温暖的纯音乐。