<label class="radikalwp-cb-task"><input type="checkbox" checked /><i><//i><span>تماس با تیم پشتیبانی<//span><//label>

.radikalwp-cb-task { display: flex; align-items: center; gap: 10px; cursor: pointer; width: fit-content; }
.radikalwp-cb-task input { display: none; }
.radikalwp-cb-task i {
  width: 20px;
  height: 20px;
  border: 2px solid #cbd5e1;
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
  transition: all .22s ease;
}
.radikalwp-cb-task input:checked + i { background: #6366f1; border-color: #6366f1; }
.radikalwp-cb-task input:checked + i::after {
  content: '';
  position: absolute;
  top: 4px;
  right: 5px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.radikalwp-cb-task span { font-size: 13.5px; color: #0f172a; transition: all .25s ease; }
.radikalwp-cb-task input:checked ~ span { color: #94a3b8; text-decoration: line-through; }