.artdtl .rewrite-intro .summary-preview { display: flow-root; }
.artdtl .rewrite-intro .summary-preview > :first-child { margin-top: 0; }
.artdtl .rewrite-intro .summary-preview > :last-child { margin-bottom: 0; }
.artdtl .rewrite-intro.summary-collapsible:not(.summary-expanded) .summary-preview {
  max-height: var(--summary-preview-height);
  overflow: hidden;
}
.artdtl .rewrite-intro .summary-toggle {
  display: block; margin: 10px auto 0; padding: 4px 14px;
  border: 0; border-radius: 20px; background: #dff3eb;
  color: #087c59; font: inherit; font-size: 14px; line-height: 1.6;
  cursor: pointer;
}
.artdtl .rewrite-intro .summary-toggle[hidden] { display: none; }