One day visit to Nanluo Guxiang Hutong and Lugou bridge

Hello, How can make a one day visit to nanluo guxiang hutong and lugou(Marco polo bridge) from Qinhuangdao without making a night-stay in the city.I want to go to the capital city early morning from Qinhuangdao, so I can have a full day for the excursion and return back in the evening. I didn't find an early D-train in the internet. Please guide!