/* 教材维护弹层用原后台配色，窄屏保持单列；目录调整和资料选择分别滚动。 */
.hq-library-dialog{width:min(660px,calc(100vw - 40px));max-height:88vh;box-sizing:border-box;overflow:auto;border:1px solid #d9e4ed;border-radius:16px;padding:24px;color:#263e55}
.hq-library-dialog::backdrop{background:#20385066}.hq-library-dialog h2{font-size:20px;margin:0 0 12px}.hq-library-dialog h3{font-size:14px}.hq-library-dialog p{font-size:12px;line-height:1.7;color:#728597}
.hq-library-dialog label{display:flex;flex-direction:column;gap:6px;font-size:12px;margin:12px 0}.hq-library-dialog input:not([type=checkbox]),.hq-library-dialog select,.hq-library-dialog textarea{box-sizing:border-box;width:100%;border:1px solid #d9e4ed;border-radius:8px;padding:9px;font:inherit;color:inherit;background:#fff}.hq-fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}
#hqSelected{padding:0;list-style:none;max-height:220px;overflow:auto}#hqSelected li{display:flex;align-items:center;gap:6px;padding:7px 0;border-bottom:1px solid #eef3f7;font-size:12px}#hqSelected li span{flex:1;min-width:0;overflow-wrap:anywhere}
.hq-library-dialog button{min-height:32px;border:1px solid #d9e4ed;border-radius:7px;background:white;color:inherit;padding:5px 10px;cursor:pointer}.hq-library-dialog button:disabled{opacity:.4;cursor:default}#hqAvailable{max-height:240px;overflow:auto;border:1px solid #eef3f7;padding:10px;border-radius:8px}#hqAvailable label{flex-direction:row;align-items:center;font-size:13px;margin:0;padding:8px;gap:8px}#hqAvailable input{width:16px;height:16px}
.hq-actions{display:flex;justify-content:flex-end;gap:10px;padding-top:14px}#hqSave{background:#4d91d8;border-color:#4d91d8;color:#fff}#hqError{color:#a54839;white-space:pre-wrap}
@media(max-width:500px){.hq-library-dialog{padding:16px}.hq-fields{grid-template-columns:1fr;gap:0}}