Deep Chinese Drama?

 TeaBear:

Good acting / good dialogues:

Prince of Lan Ling

Love Me If You Dare 

Lucky days

Sound of Colors 

Romance in the rain

sparrow

Le Jun Kai

Nothing gold can stay ( warning about the ending!)

Good story / good effecs:

Wu Xin: The Monster Killer 

The mystic nine

Medical Examiner Dr. Qin

le jun kai...ermmm idk

Not sure about your definition of "deep"

But Crystal Boy talk about serious issues and with good actors.

But it's not Blockbuster like ... so not sure if it's what you are looking for !

Hope you'll find something you like !

NIRVANA IN FIRE 2

SOUND OF THE DESERT