亚特兰蒂斯警报

A 12-second alarm sound from the lost underwater city of Atlantis. Begin with a deep, gentle oceanic resonance, like a distant whale call awakening beneath ancient ruins. Three bright crystal chimes then ring in an ascending pattern, each note refracted and shimmering through water. Follow with rhythmic sonar pulses, streams of rising bubbles, resonant bronze architecture, and a subtle ethereal underwater choir with