科技背景渐变风彩色线条光影背景素材

abstract futuristic artwork, black background, horizontal soundwave light band in the center, rainbow gradient colors from left to right (red, orange, yellow, green, cyan, blue, purple), vertical stripes with varying heights forming an audio waveform effect, dynamic blur transitions between stripes, high contrast, smooth gradients and soft edges, modern and futuristic design, strong visual impact, vibrant colors with rhythm, conveying themes of technology, music, energy flow or digital information, evoking curiosity, excitement and modernity