Unified Lorenz–Chen–Lü — dx/dt=(25α+10)(y−x), dy/dt=(28−35α)x−x z+(29α−1)y, dz/dt=x y−(α+8)/3 z. Classic mid α=0.5. Distinct from lorenz.html / chen.html / lu.html. RK4. Gold trail, cap 650. RM = settled silhouette, no animate-on.