/* 例句录音条 */
(function(){if(window.__lessonRecorder)return;window.__lessonRecorder=1;
var signedIn=false,pending={},seq=0;
function css(){var s=document.createElement('style');s.textContent='.rec-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:8px}.rec-btn{border:1px solid var(--primary,#1a5c2a);background:#fff;color:var(--primary,#1a5c2a);border-radius:10px;padding:5px 12px;font-size:.85em;cursor:pointer}.rec-btn:hover{background:var(--bg2,#eaf6ec)}.rec-btn[disabled]{opacity:.45;cursor:not-allowed}.rec-btn.on{background:#c0392b;border-color:#c0392b;color:#fff}.rec-tip{font-size:.78em;color:#6b7280}';document.head.appendChild(s)}
function pick(box,list){for(var i=0;i