strategically speaking
china only needs to land and fortify.
they can land a substantial before any allied response time.
can one ACC do it?
they sent the reagan.
what are any of the 90 aircrafts going tod o when their carrier is pummeled to shit.
Your thinking about a battle, not a war.
The aim is to win the war, not fight one battle.
There is the sticky situation where Taiwan has been given protection from the US. This means you risk nuclear retaliation if going against Taiwan. Sink an American air-craft carrier, and its free for all. The US has subs probably right in the middle of the Port of Tianjin.
China can certainly sink an ACC group. They have some decent hypersonic missiles (allegedly)
The US has multiple air force bases in Japan and S Korea. The closes one is Kadena Air Force base about 600km from Taiwan. China's air-force is mainly made of of Russian SU-27's and their own variant of it. At best, the SU-27 is comparable to the F-16, but im not even sure if this is true.
Chinas 400-500 Air Combat units may sound like a lot, but they wont stand a chance against what is just stationed in Japan. From Japan they can launch what ever they need to sink every single ship moving between Taiwan in China
Chinas Navy is mostly made up of old ships and small patrol boats.
But China's biggest issue will be what Russia learnt. When you invade a nation, its not your army against their army. Its your army against their entire population. Once China lands on Taiwan's shores, they are up against 7+ million male adults being consistently armed by the UN. With another 15 million women and children supporting them.
The PLA technically has over 2 million people. But most of them are support (like most militaries) and no country will send all of your soldiers to fight a war, especially when you have angered all the other nations too. So China will be sending at most a few 100 000 (How do they get so many of them to Taiwan?) scared soldiers to fight against 7 million men, fighting for their lives.
This is not a can of worms China will want to open.