<label class="radikalwp-fm-terms"><input type="checkbox" checked /><i><//i><span><b class="radikalwp-fm-terms-ok">قوانین را خواندم و می‌پذیرم<//b><b class="radikalwp-fm-terms-no">با قوانین موافقم<//b><//span><//label>

.radikalwp-fm-terms { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; }
.radikalwp-fm-terms input { display: none; }
.radikalwp-fm-terms i {
  width: 22px;
  height: 22px;
  border: 2px solid #cbd5e1;
  border-radius: 7px;
  position: relative;
  transition: all .22s ease;
  flex-shrink: 0;
}
.radikalwp-fm-terms input:checked + i { background: #10b981; border-color: #10b981; }
.radikalwp-fm-terms input:checked + i::after {
  content: '✓';
  position: absolute;
  inset: 0;
  color: #fff;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.radikalwp-fm-terms span { font-size: 12.5px; }
.radikalwp-fm-terms-ok { display: none; color: #059669; }
.radikalwp-fm-terms-no { color: #64748b; }
.radikalwp-fm-terms input:checked ~ span .radikalwp-fm-terms-ok { display: inline; }
.radikalwp-fm-terms input:checked ~ span .radikalwp-fm-terms-no { display: none; }