function ft_articletoptg_scrollto(){ let ft_tg_el = document.getElementById('app-qihuo-kaihu-qr'); if(ft_tg_el){ let ft_tg_el_offtop = ft_tg_el.offsetTop - 100; window.scrollTo({ top: ft_tg_el_offtop, behavior: 'smooth' }); } }

来源：准达资讯