.tdbc-grid {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 18px 0;
}
.tdbc-item {
  width: 220px;
  text-align: center;
  background: transparent;
}
.tdbc-thumb-link img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.12);
}
.tdbc-caption {
  margin-top: 8px;
  font-weight: 600;
  color: #333;
}
.tdbc-no-thumb {
  width: 100%;
  height: 140px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#f5f5f5;
  border-radius:8px;
  color:#666;
  padding:8px;
}
.tdbc-empty { color:#666; font-style:italic; }
@media (max-width:600px) {
  .tdbc-item { width: 45%; }
}