.learning-app.workbook-page{display:block;min-height:0}.workbook-document{max-width:900px;margin:0 auto;padding:28px}.workbook-section-links{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}.workbook-section{scroll-margin-top:24px;margin-bottom:36px}.workbook-cards{display:grid;grid-gap:18px;gap:18px}.workbook-card{min-width:0;overflow-wrap:anywhere}.workbook-card-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px}.workbook-card-head h3{margin:0;font-size:1rem}.workbook-card .source-image{display:block;max-width:100%;max-height:340px;object-fit:contain;margin:16px auto}.workbook-card .hanzi,.workbook-card .pinyin,.workbook-value{white-space:pre-wrap}.workbook-card .workbook-prompt{font-size:1.4rem;line-height:1.8}.workbook-data{display:grid;grid-gap:8px;gap:8px;margin:12px 0}.workbook-values{display:flex;flex-wrap:wrap;gap:8px 20px;padding-left:20px;margin:8px 0}.workbook-table-scroll{overflow-x:auto;max-width:100%}.workbook-table{border-collapse:collapse;margin:8px 0}.workbook-table td{padding:10px 16px;border:1px solid var(--border)}.workbook-data-number{color:var(--text-secondary)}.workbook-answer,.workbook-speech{margin-top:18px}.workbook-answer h4{font-size:1rem;margin-bottom:8px}.workbook-answer-value{border-top:1px solid var(--border);margin-top:16px}.workbook-options .option{align-items:start;text-align:left}.workbook-options .pinyin,.workbook-turn{display:block}.workbook-options-static{display:grid;grid-gap:10px;gap:10px;padding-left:20px}.workbook-translation-note{margin-top:36px}@media (max-width:640px){.workbook-document{padding:20px 12px}.workbook-card{padding:18px}}.workbook-audio{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:8px 0}.workbook-audio audio{width:min(100%,360px)}