.na-proa-ad-block {
  display: block;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  border-radius: 0;
  overflow: hidden;
  text-decoration: none;
  line-height: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

a.na-proa-ad-block:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

.na-proa-ad-block img {
  display: block;
  width: 100%;
  height: auto;
}

.na-proa-ad-empty {
  padding: 12px 16px;
  border-left: 4px solid #f49a18;
  background: #fff8ec;
  color: #2c2f33;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

.na-proa-ad-empty code {
  padding: 2px 6px;
  border-radius: 3px;
  background: #f0f0f0;
  font-size: 13px;
}

@media (max-width: 640px) {
  .na-proa-ad-block {
    margin: 0 auto;
  }
}