/* Comment fallback initials. No effect on regular images or registered users. */
.mt-initial-avatar {
  display: inline-flex !important;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  border-radius: 8px;
  background: #1581be;
  color: #fff;
  font-family: Arial, sans-serif;
  font-size: clamp(12px, 1.2em, 18px);
  font-weight: 700;
  line-height: 1 !important;
  vertical-align: middle;
  text-align: center;
  overflow: hidden;
}

/* 記事内コメント：イニシャルアバター表示 */
#comments span.avatar.mt-initial-avatar {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  box-sizing: border-box !important;
  background-color: #1581be !important;
  color: #ffffff !important;
  width: 35px !important;
  height: 35px !important;
  border-radius: 8px !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  line-height: 1 !important;
  opacity: 1 !important;
  visibility: visible !important;
}