<button class="radikalwp-btn-ring"><span>شروع کنید<//span><//button>

.radikalwp-btn-ring {
  position: relative;
  padding: 3px;
  border: none;
  background: transparent;
  border-radius: 14px;
  cursor: pointer;
  overflow: hidden;
}
.radikalwp-btn-ring::before {
  content: '';
  position: absolute;
  inset: -120%;
  background: conic-gradient(#6366f1, #ec4899, #f59e0b, #6366f1);
  animation: radikalwp-ring-spin 3s linear infinite;
}
.radikalwp-btn-ring span {
  position: relative;
  display: inline-block;
  padding: 12px 30px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  background: #0f172a;
  border-radius: 12px;
}
@keyframes radikalwp-ring-spin { to { transform: rotate(360deg); } }