Producing different styles within one paragraph (and Markdown)

In the compiling options, how can I make Pandoc interpret those character styles as different styles in the output document (odt)? I learned here how to produce an ODT template with customs styles for metadata, but I am confused about how to do this with character styles.

This is a reasonable workaround. I still would like to explore an option within Scrivener to reduce time at “post-processing” and allow for last-minute changes.

This is how I used to work before: one project for the oral version, another project for the written one. But changes made in one are not automatically reflected in the other, and in this specific situation, the oral and written versions are essentially the same; the only difference is what I will read aloud this time, which may differ from what I choose to read on the next occasion. And between these two occasions, lots of things will change in the paper.