available-light-photography

用户想在不添加闪光灯/摄影灯的情况下拍摄、问"室内不用闪光灯怎么拍"、 或追求真实感/氛围感时调用。不适用于人造光布光（应调用 three-point-lighting） 或自然光户外拍摄（应调用 natural-light-direction）。 Invoke when the user wants to shoot without adding flash or studio lights, asks "how to shoot indoors without flash," or seeks authenticity / atmosphere in their photos. Not for artificial light setup (use three-point-lighting) or outdoor natural light shooting (use natural-light-direction). 关键 trigger / Key triggers: "现场光"、"不用闪光灯"、"available light"、 "indoor photography without flash"、"ambient light"、 "low light photography"、"natural atmosphere photo"、 "how to shoot in d