.chapter-unit-list[data-v-cc612c7f]{display:flex;flex-direction:column;gap:10px}.unit-row[data-v-cc612c7f]{display:flex;align-items:center;gap:12px;padding:16px 18px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:border-color var(--transition-base),box-shadow var(--transition-base),transform var(--transition-fast)}.unit-row[data-v-cc612c7f]:hover{border-color:var(--border-hover);box-shadow:var(--shadow-sm);transform:translate(2px)}.chapter-row[data-v-cc612c7f]{border-bottom-left-radius:0;border-bottom-right-radius:0}.chapter-group .chapter-row[data-v-cc612c7f]{margin-bottom:0}.subsection-list[data-v-cc612c7f]{border:1px solid var(--border);border-top:none;border-radius:0 0 var(--radius) var(--radius);overflow:hidden;background:var(--card-bg)}.subsection-row[data-v-cc612c7f]{border:none;border-radius:0;border-top:1px solid var(--border);padding-left:48px;background:#fafbfc}.subsection-row[data-v-cc612c7f]:first-child{border-top:none}.toggle-btn[data-v-cc612c7f]{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:1px solid var(--border);border-radius:8px;background:var(--bg-subtle);color:var(--text-secondary);cursor:pointer;transition:color var(--transition-fast),border-color var(--transition-fast),background var(--transition-fast)}.toggle-btn[data-v-cc612c7f]:hover{color:var(--primary);border-color:var(--border-hover);background:var(--primary-light)}.unit-main[data-v-cc612c7f]{flex:1;min-width:0}.unit-title[data-v-cc612c7f]{font-weight:600;font-size:15px;margin-bottom:6px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.unit-meta[data-v-cc612c7f]{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--text-secondary)}.row-arrow[data-v-cc612c7f]{flex-shrink:0;color:var(--text-muted);transition:color var(--transition-fast),transform var(--transition-base)}.unit-row:hover .row-arrow[data-v-cc612c7f]{color:var(--primary);transform:translate(3px)}