Wǎngyè de zìtǐ wǒ yìbān shèchéng Píngfāng huòzhě Wēiruǎn Yǎhēi.
For web pages I usually set the font to PingFang or Microsoft YaHei.
Tips
memory
苹 comes from 苹果, Apple's Chinese name, and 方 'square' suits the square shape of Chinese characters.
usage
Introduced with iOS 9 in 2015, it is the Mac and iPhone counterpart of 微软雅黑 on Windows. In CSS it is named PingFang SC (simplified), PingFang TC (traditional) and PingFang HK.