#tool-body .tool-card { max-width: 800px; margin: 0 auto; border-radius: 4px; }
#tool-body .result-box { background-color: #f0f9eb; color: #333; font-family: monospace; font-size: 18px; font-weight: bold; border-color: #c2e7b0;min-height: 40px; }
#tool-body .format-select-group { max-width: 450px; }
.theme-dark-mode #tool-body hr {border-bottom: 1px solid #333;}
.theme-dark-mode #tool-body .result-box {
  background-color: #333;
  color: inherit;
}