7.
已知椭圆\(M\):\( \dfrac{x^{2}}{a^{2}}+ \dfrac{y^{2}}{b^{2}}=1(\)\(a\)\( > \)\(b\)\( > 0)\)的右焦点\(F\)的坐标为\((1,0)\),\(P\),\(Q\)为椭圆上位于\(y\)轴右侧的两个动点,\(PF\)\(⊥\)\(QF\),\(C\)为\(PQ\)中点,线段\(PQ\)的垂直平分线交\(x\)轴,\(y\)轴于点\(A\),\(B\)两点\((\)线段\(PQ\)不垂直\(x\)轴\()\),当\(Q\)运动到椭圆的右顶点时,\(PF\)\(= \dfrac{ \sqrt{2}}{2}\).
\((1)\)求椭圆\(M\)的标准方程;
\((2)\)记\(\triangle \)\(ABO\)、\(\triangle \)\(BCF\)的面积分别为\(S\)\({\,\!}_{1}\),\(S\)\({\,\!}_{2}\),若\(S\)\({\,\!}_{1}∶\)\(S\)\({\,\!}_{2}=3∶5\),求直线\(PQ\)的方程.