Inconsistent vertical spacing in nested lists

Problem

The vertical spacing is inconsistent in nested lists. A blank line is left at the beginning of the second level, but no blank line when we return to the first level.

Reproducible Project

From the RTD theme documentation itself:

- I kept saying that, "deeper down the rabbit hole". `yahoo <http://www.yahoo.com>`_

  - I cackle at night `yahoo <http://www.yahoo.com>`_.
- I'm so lonely here in GZ ``guangzhou``

Note: Adding additional blank lines doesn't help

Error Logs/Results

Expected Results

Either

• No space before "I cackle at night yahoo"
• Also space after "I cackle at night yahoo"

Sepculation

The relevant CSS code is

.rst-content .section ul p {
    margin-bottom: 12px;
}


.rst-content .section ul li p:last-child {
    margin-bottom: 0;
}