:root{
  --blue-rgb: 15, 98, 254;
  --teal-rgb: 8, 189, 186;
  --purple-rgb: 190, 149, 255;
}

/* применяем ко всем блокам, где есть класс qdev-grad */
.uc-qdev-grad{
  position: relative;
  overflow: hidden;
  background-color: #05070C;
}

.uc-qdev-grad::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1100px 650px at 12% 8%,  rgba(var(--blue-rgb),   .16) 0%, transparent 58%),
    radial-gradient(980px 560px  at 86% 10%, rgba(var(--purple-rgb), .12) 0%, transparent 58%),
    radial-gradient(920px 520px  at 78% 72%, rgba(var(--teal-rgb),   .10) 0%, transparent 62%),
    radial-gradient(980px 720px  at 50% 112%, rgba(var(--blue-rgb),  .10) 0%, transparent 62%);
  background-repeat:no-repeat;
}

.uc-qdev-grad > *{
  position: relative;
  z-index: 1;
}