.external-source-library{border-top:1px solid var(--border,#e9e4dd);margin-top:48px;padding-top:32px}.external-source-domain{margin-top:24px}.external-source-reader{--dept-accent:#62676b}.external-source-reader .breadcrumb{flex-wrap:wrap}.external-source-overview .course-toc-module{background:#fff;border:1px solid #e9e4dd;border-radius:14px;padding:22px 24px}.external-source-overview .course-toc-module>header{flex-wrap:wrap}.external-source-overview .course-toc-module>header h3{min-width:0}@media (max-width:640px){.external-source-overview .course-toc-module{padding:18px 16px}}.external-source-overview .course-toc li>a,.external-source-overview .course-toc-pending{grid-template-columns:32px minmax(0,1fr) 44px;gap:12px}