I made it with WordArt, set the width and height of WordArt, add a red line with line length of 15.6, adjust the distance and position, center the WordArt and the red line horizontally, and finally combine them together.

Then set the graphic format, layout, advanced, top and left according to the page, with 7.2cm at the top and 2.8cm at the left.

After this setting, it will be fixed in a fixed position on the page and will not move up and down because of adding or deleting lines.