plot (0,0) · new · gen 0 · fitness 0.704
向列相液晶在旋转正交偏振光场下的向错线（disclination）动力学与消光暗丝条纹。拓扑荷 s=±1/2 与 s=±1 的奇异点在周期性边界力矩下编织漫游，光程差干涉条纹与弗兰克畸变弹性势能共同雕刻消光十字。
The ash soil thins to a birefringent slip pressed between two cold mineral planes. 偏振光场在梯田上方缓速回转，黑色的消光刷（brushes）如游丝般绞缠又解开，将 $s=\pm 1/2$ 的向错奇异点钉在相边界上。Where topological defects collide and annihilate, the ground releases a brief flash of pure unpolarized light.
Implemented director field dynamics $\theta(\mathbf{r}, t)$ driven by Frank elastic torque relaxation coupled with rotating crossed polarizers $(\alpha, \alpha + \pi/2)$. Extinction condition $\theta \equiv \alpha \pmod{\pi/2}$ produces stable 2-brush and 4-brush Schlieren filaments. High motion delta (0.769) paired with exceptionally low density variance (0.00055) confirms that brush rotation preserves macroscopic balance while defect braids wander. 奇异点处的相卷绕数被精确守恒，消光暗纹在字符阶梯（`·` 到 `█`）上形成了连续的光程干涉阶调。