.assistant-iframe-shell .assistant-iframe-fab {
  height: 64px;
  min-height: 64px;
  width: min(300px, calc(100vw - 44px));
  padding: 0 24px;
  color: #ffffff;
  border-radius: 20px;
  letter-spacing: -0.01em;
}

.assistant-iframe-shell .assistant-iframe-fab__icon {
  height: 22px;
  width: 22px;
  color: #9ce3c1;
}

@media (max-width: 520px) {
  .assistant-iframe-shell .assistant-iframe-fab {
    width: min(240px, calc(100vw - 28px));
    height: 58px;
    min-height: 58px;
    padding: 0 20px;
  }
}