/* دکمهٔ بازگشت مرکز پشتیبانی؛ هم‌سبک با بخش چت ناشناس */
.support-header button[data-support="back"] {
  width: 44px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid #c7dcff;
  border-radius: 13px;
  color: #1d68e9;
  background: linear-gradient(145deg, #fff, #edf5ff);
  box-shadow: 0 8px 18px rgba(35, 103, 232, .16);
}

.support-header button[data-support="back"] svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.25;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.support-recent:has(article) { min-height: 0; }