:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: 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#0000001a}.box-label{margin-top:12px;font-weight:600;color:#333}.qr-actions{display:flex;gap:12px;margin-bottom:24px}.action-btn{flex:1;padding:12px;border:none;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s}.print-btn{background:#007aff;color:#fff}.download-btn{background:#28a745;color:#fff}.print-tips{border-top:1px solid #e1e5e9;padding-top:20px;text-align:left}.print-tips h4{margin-bottom:12px;color:#333}.print-tips ul{color:#666;font-size:.9rem;line-height:1.5}.print-tips li{margin-bottom:8px}.description-section{background:#fff;border-radius:12px;padding:16px;margin:16px 20px;box-shadow:0 2px 8px #0000001a}.description-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.description-header label{font-weight:600;color:#333;font-size:1rem}.edit-description-btn{background:none;border:none;font-size:1.2rem;padding:4px 8px;border-radius:6px;cursor:pointer;transition:background-color 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#fcc;border-radius:6px;color:#c33}.description-error p{margin:0 0 8px;font-size:.9rem;word-break:break-word}.error-dismiss{background:#c33;color:#fff;border:none;padding:6px 12px;border-radius:4px;font-size:.8rem;cursor:pointer}.error-dismiss:hover{background:#a22}.box-contents-container{flex:1;display:flex;flex-direction:column;padding:20px;max-width:480px;margin:0 auto}.box-header{display:flex;align-items:center;margin-bottom:24px}.box-info{flex:1;text-align:center}.box-info h2{margin:0 0 4px;color:#333;font-size:1.5rem}.item-count{color:#666;font-size:.9rem}.add-item-section{background:#fff;border-radius:16px;padding:20px;box-shadow:0 2px 8px #0000001a;margin-bottom:20px}.add-item-form{display:flex;gap:12px}.item-input{flex:1;padding:16px;border:2px solid #e1e5e9;border-radius:12px;font-size:1rem}.item-input:focus{outline:none;border-color:#007aff}.add-btn{padding:16px 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