Borda de tubo neon

.card-092 {
  width: 270px;
  padding: 24px;
  background: #050510;
  border: 1px solid #f0abfc;
  border-radius: 14px;
  font-family: system-ui,sans-serif;
  color: #fdf4ff;
  box-shadow: 0 0 6px #e879f9,0 0 18px rgba(232,121,249,.5),inset 0 0 12px rgba(232,121,249,.25);
  transition: box-shadow .25s,border-color .25s
}
.card-092:hover {
  border-color: #fff;
  box-shadow: 0 0 10px #e879f9,0 0 32px rgba(232,121,249,.7),0 0 64px rgba(232,121,249,.35),inset 0 0 18px rgba(232,121,249,.35)
}
.card-092 span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #f0abfc
}
.card-092 span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #f0abfc;
  box-shadow: 0 0 8px #f0abfc;
  animation: card-092-blink 1.4s infinite
}
.card-092 h3 {
  margin: 10px 0 6px;
  font-size: 22px;
  text-shadow: 0 0 10px rgba(240,171,252,.8)
}
.card-092 p {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: #d8b4fe
}
@keyframes card-092-blink {
  50% {
    opacity: .3
  }
}
@media (prefers-reduced-motion: reduce) {
  .card-092, .card-092 * { animation: none; transition: none; }
}

<article class="card-092">
  <span>Live</span>
  <h3>Neon edge</h3>
  <p>Layered box-shadows fake a glowing tube around the border.</p>
</article>