HO 1260 then EU 6678 at Pudong
Beijing Daxing → Shanghai → Chengdu
Timetable, Shanghai time
19:25HO 1260 from Beijing Daxing at the gate
12:55EU 6678 to Chengdu leaves the gate
17 h 30 apart on the timetable, overnight
EU 6678 leaves 17 h 30 after HO 1260 arrives on the timetable: more than half a day, so not a connection we count.