<button class="radikalwp-btn-gradient-anim"><span>کاوش کن<//span><//button>

.radikalwp-btn-gradient-anim {
  padding: 3px;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  background: linear-gradient(90deg, #6366f1, #ec4899, #f59e0b, #10b981, #6366f1);
  background-size: 300% 100%;
  animation: radikalwp-grad-slide 5s linear infinite;
}
.radikalwp-btn-gradient-anim span {
  display: inline-block;
  padding: 12px 32px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  background: #0f172acc;
  border-radius: 999px;
}
@keyframes radikalwp-grad-slide { to { background-position: 300% 0; } }