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.course-pdf-reader{border:1px solid #e4eaf2;border-radius:8px;overflow:hidden;background:#fff}.course-pdf-toolbar{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;padding:12px;border-bottom:1px solid #e4eaf2}.course-pdf-toolbar [role=status]{color:#52627a;min-width:110px;text-align:center}.course-pdf-stage{padding:12px;background:#f3f5f8;overflow:auto;max-height:78vh}.course-pdf-stage canvas{display:block;max-width:100%;margin:auto;background:#fff;box-shadow:0 2px 12px #17243b12}