Four-wing — dx/dt = a·x + y·z, dy/dt = b·x + c·y − x·z, dz/dt = −z − x·y. Qi / Chen–Lee family continuous ODE with four symmetric lobes. RK4, not Dadras multi-scroll, not Sprott Case A, not Halvorsen cyclic quadratic, not Chua circuit, not Aizawa sphere, not Thomas cyclic sin, not Rössler fold, not Lorenz butterfly. Gold low-alpha trail, cap 650. RM = settled silhouette, no animate-on.