In the night everything is closed. Food and drinks...

In the night everything is closed. Food and drinks vending machines mostly not working and if works, only accepts 5 and 10CNY banknotes. So no chance to buy any food or drink, except some liquers from duty free.
Smoking is prohibited, no smoking area available (in China, where people smokes even when eating dinner??). And to make it perfect, they steal all lighters they finds at security check, to make sure you can't light up your cigarette even in next destination.