.homework-core{max-width:760px;margin:0 auto}.homework-core .homework-cover{display:block;max-width:100%;width:100%;height:260px;object-fit:contain;background:var(--soft,#eaf0e6);border-radius:12px;margin:20px 0}.homework-core video{display:block;width:100%;max-height:400px;margin:20px 0}.homework-core .reader-context{font-size:14px;color:#596b61}.homework-core .playback-section{margin:24px 0}.homework-core .playback-section audio{width:100%}.homework-progress{padding:16px;background:#eaf0e6;color:#285c49;border-radius:12px;width:100%;text-align:center}.homework-other{margin-top:24px;border-top:1px solid #dde3da;padding-top:12px}.homework-other summary{min-height:44px;padding:10px 0;color:#596b61;cursor:pointer}.homework-core .report-actions{flex-wrap:wrap}.homework-core .report-actions>*{min-height:48px}@media(max-width:480px){.homework-core{padding:20px}.homework-core .homework-cover{height:180px}}