This should be the problem of font spacing in the default format before the word document itself. You can select these two lines of text titles after input, and set them according to the typesetting requirements, that is, select the place to be modified, right-click to select a paragraph, or select a paragraph on the function bar of the document to set line spacing, then select font settings, and set the font size and font style as needed. This can be solved theoretically.

In fact, before writing a paper, it is more convenient to set the margins, title style and advanced text style of the document according to the requirements of the paper format given by the school before writing a new word document, so that there is no need to modify the format after writing the paper, and the whole article will not be in a mess. Finally, set the header and footer after writing, so that the format of the whole paper can be basically done, and only a little adjustment is needed later.