未来 科技背景渐变风科技感光线星空背景素材

abstract futuristic background, deep blue gradient transitioning to purple-blue, multiple thin curved light beams radiating from bottom to top, white light dots scattered between beams simulating stars or data particles, high-tech digital art style, dynamic and flowing, strong sense of motion and technology, dark background with bright contrasting lines, suitable for tech presentations or digital product interfaces