Firefly Bioluminescence

The common eastern firefly (Photinus pyralis) emits a startlingly efficient yellow-green light at ~557 nm — a cold flame that warms toward orange with heat. This system frames that flash as a pre-1900 naturalist plate: classical entomological annotation set against a deep summer-night sky.

Warm point-lights scatter like a low constellation across near-black indigo, captioned in period serif. The mood is meadow-at-dusk: refined, scientific, and quietly luminous — never neon, never cold.

北美东部常见的萤火虫（Photinus pyralis）在约 557 纳米处发出效率惊人的黄绿色冷光，受热时偏向橙黄。本设计系统将这一闪光置于 1900 年前的博物学图版语境中——深邃的夏夜靛蓝天空之上，是古典昆虫学的手写注解。

暖色的点光如低垂的星座般散落在近乎墨黑的靛蓝之中，配以时代感十足的衬线注解。整体氛围如黄昏草甸：精致、科学而静谧地发光——绝不霓虹，绝不冷调。