.qnb-form { max-width: 680px; padding: 12px; border: 1px solid #ddd; border-radius: 8px; }
.qnb-field { margin-bottom: 12px; }
.qnb-field label { display:block; font-weight: 600; margin-bottom:4px; }
.qnb-field input, .qnb-field select { width:100%; padding:8px; }
.qnb-result { white-space: pre-wrap; background: #fafafa; padding: 8px; border:1px dashed #ccc; margin-top: 12px; }