Li–Meng — ẋ=a(y−x), ẏ=35 x−xz−0.5 y, ż=xy−3z+0.2 y. Classic a=30. 35x−0.5y+0.2y fold. Distinct from meng-li.html / li-qi.html. RK4. Gold trail, cap 650. RM = settled silhouette, no animate-on.