Abyssal Bioluminescence

Below roughly 1000 metres the ocean enters the aphotic zone — water so deep that no sunlight survives and the only illumination is cold biological light. Marine bioluminescence peaks at 470–490 nm because blue-green travels farthest through seawater, so the abyss reads as electric cyan glow against a near-black field.

This system borrows the language of submersible instruments and ROV camera feeds: emitted light, never reflected; sparse pinpoints and soft halos rising from depth; sonar and depth-gauge readouts. Glow is precious and rationed, the dark is the dominant material, and every surface behaves like something seen through cold water.

约一千米以下，海洋进入无光的深渊带（aphotic zone）——海水深到阳光彻底消失， 唯一的光来自生物体发出的冷光。海洋生物发光的波长集中在 470–490 纳米，因为蓝绿光 在海水里传得最远，于是整个深渊呈现出近乎黑色背景上浮现的电青色辉光。

这套系统借用潜航器仪表与 ROV 摄像信号的视觉语言：光是被发射的，而非反射的； 稀疏的光点与柔和的光晕从深处升起，辅以声呐与深度刻度的读数。辉光珍贵而克制， 黑暗才是主体材料，所有界面都像隔着冰冷海水被注视。