.tqthc-app{--tqthc-blue:#2457a7;max-width:100%;margin:24px auto;color:#202938;font:16px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;box-sizing:border-box}
.tqthc-app *{box-sizing:border-box}
.tqthc-app .tqthc-card,.tqthc-app .tqthc-preview-wrap{background:#fff;border:1px solid #e2e7ef;border-radius:14px;padding:22px;box-shadow:0 5px 20px rgba(20,35,60,.06);margin-bottom:18px}
.tqthc-app .tqthc-heading h2{margin:0 0 6px;font-size:clamp(22px,3vw,30px);line-height:1.25;color:#17233a}
.tqthc-app .tqthc-heading p{margin:0 0 20px;color:#5c6678}
.tqthc-app .tqthc-label{display:block;font-size:14px;font-weight:650;margin:0 0 6px;color:#344054}
.tqthc-app .tqthc-input,.tqthc-app .tqthc-select{width:100%;max-width:100%;border:1px solid #ccd4e0;border-radius:8px;background:#fff;color:#172033;padding:10px 12px;font:inherit;min-height:42px}
.tqthc-app .tqthc-input{resize:vertical;min-height:150px;margin-bottom:16px}
.tqthc-app .tqthc-controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:6px 0 18px}
.tqthc-app .tqthc-range{width:100%;accent-color:var(--tqthc-blue)}
.tqthc-app .tqthc-actions{display:flex;flex-wrap:wrap;gap:9px}
.tqthc-app .tqthc-btn{border:1px solid #cbd4e1;border-radius:8px;padding:10px 15px;background:#fff;color:#25334a;font:600 14px/1.2 inherit;cursor:pointer}
.tqthc-app .tqthc-btn:hover{filter:brightness(.97)}
.tqthc-app .tqthc-primary{background:var(--tqthc-blue);border-color:var(--tqthc-blue);color:#fff}
.tqthc-app .tqthc-muted{background:#f4f6f9}
.tqthc-app .tqthc-status{font-size:13px;color:#596579;margin-top:12px;min-height:20px}
.tqthc-app .tqthc-preview-title{font-weight:750;font-size:19px;margin-bottom:12px}
.tqthc-app .tqthc-canvas-scroll{width:100%;overflow:auto;background:#edf0f4;padding:12px;border-radius:8px;text-align:center}
.tqthc-app .tqthc-canvas{display:block;width:min(100%,794px);height:auto;margin:0 auto;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.12)}
.tqthc-app .tqthc-note{font-size:12px;color:#6c7687;margin:12px 0 0}
@media(max-width:680px){.tqthc-app .tqthc-card,.tqthc-app .tqthc-preview-wrap{padding:15px}.tqthc-app .tqthc-controls{grid-template-columns:repeat(2,minmax(0,1fr))}.tqthc-app .tqthc-actions .tqthc-btn{flex:1 1 44%}}
@media(max-width:420px){.tqthc-app .tqthc-controls{grid-template-columns:1fr}}