I understand you're looking for the font, but I must advise caution: Lantinghei TC is a proprietary typeface (specifically, a Traditional Chinese font from the "Lanting Black" family, designed by Foundry Type and commonly bundled with Adobe products or macOS). It is not legally available for free download from unofficial sources. Downloading it from unauthorized websites would violate copyright law and could expose you to malware or counterfeit files.
Lantinghei TC (蘭亭黑體) is a widely respected Traditional Chinese sans-serif typeface known for its clean, modern strokes and high legibility on screens. Originally developed by Founder Electronics (Beijing) and licensed through Adobe Creative Cloud or Apple’s system fonts (as part of macOS and iOS), it is not freeware . lantinghei tc font free download
Respect font licenses. Use free, legal alternatives for your design needs. I understand you're looking for the font, but
Instead, here’s a legitimate short piece you can use for reference or to inform your readers: Understanding Lantinghei TC: A Professional Traditional Chinese Typeface Use free, legal alternatives for your design needs