Add to https://github.com/yozhic/GoldenDict-Full-Dark-Theme/blob/main/GoldenDict/styles/Dark/article-style.css

article-style_user.css

@font-face {
  font-family: "Sarasa Term SC Nerd Regular";
  src:
    local('Sarasa Term SC Nerd Regular') format('truetype');
  font-weight: normal;
  font-style:  normal;
}

body
{
  font-family: "Sarasa Term SC Nerd Regular", NotoSans;
  font-size:   10pt;
}

.dsl_t
{
  font-family: "Sarasa Term SC Nerd Regular", NotoSerif;
}

.gdarticle
{
  border-radius: 0;
}

.programs_plaintext, .programs_html {
  margin-top: 20px;
}

.gdactivearticle .gddictname {
  border: none;
}

.gddictname {
  border: none;
  border-radius: 0;
}

.voiceengines_play {
  margin-top: 22.5px;
}