You have 4.3 on your mac, 6.1.3 on your iphone/ipad. Signed into the same icloud account on all devices. System prefs icloud: docs and data enabled on all devices. I trashed Pages on both of my macs and reinstalled. When I reopened pages the option to open docs from icloud or on this computer was available. If you have an exsisting doc open on your computer be sure it is saved to icloud.
I hope this solves your Syncing problem