已知抛物线\(C:{{y}^{2}}=2x\)的焦点为\(F\),平行于\(x\)轴的两条直线\(l\)\({\,\!}_{1}\),\(l\)\({\,\!}_{2}\)分别交\(C\)于\(A,B\)两点,交\(C\)的准线于\(P,Q\)两点.
\((I)\)若\(F\)在线段\(AB\)上,\(R\)是\(PQ\)的中点,证明:\(AR\)\(‖\)\(FQ\)
\((II)\)若\(\triangle PQF\)的面积是\(\triangle ABF\)的面积的两倍,求\(AB\)中点的轨迹方程.