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20px;font-family:inherit;font-size:.875rem;font-weight:500;transition:all .18s}.tab-btn:hover{color:#6366f1}.tab-btn.active{color:#6366f1;border-bottom-color:#6366f1}.tc-card{background:#fff;border:1px solid #e5e7eb;border-radius:14px;margin-bottom:1.25rem;padding:1.5rem;box-shadow:0 1px 4px #0000000a}.card-section-title{color:#111827;margin:0 0 1.25rem;font-size:1rem;font-weight:700}.qr-main-grid{grid-template-columns:1fr 380px;align-items:start;gap:1.25rem;display:grid}.qr-config-col{flex-direction:column;display:flex}.qr-preview-col{flex-direction:column;display:flex;position:sticky;top:80px}.qr-preview-card{margin-bottom:1.25rem}.form-group{margin-bottom:1.125rem}.form-label{color:#374151;margin-bottom:6px;font-size:.8rem;font-weight:600;display:block}.form-input{color:#111827;box-sizing:border-box;border:1.5px solid #e5e7eb;border-radius:8px;outline:none;width:100%;padding:10px 14px;font-family:inherit;font-size:.9rem;transition:border-color .18s,box-shadow .18s}.form-input:focus{border-color:#6366f1;box-shadow:0 0 0 3px #6366f11a}.qr-textarea{resize:vertical;min-height:80px}.field-hint{color:#9ca3af;margin:5px 0 0;font-size:.78rem}.optional-tag{color:#9ca3af;background:#f3f4f6;border-radius:4px;margin-left:6px;padding:2px 6px;font-size:.7rem;font-weight:500}.qr-field-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.qr-type-grid{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.qr-type-btn{cursor:pointer;background:#f9fafb;border:1.5px solid #e5e7eb;border-radius:10px;flex-direction:column;align-items:center;gap:4px;padding:10px 6px;font-family:inherit;transition:all .18s;display:flex}.qr-type-btn:hover{background:#f5f3ff;border-color:#6366f1}.qr-type-btn.active{background:#eef2ff;border-color:#6366f1}.qr-type-icon{font-size:1.25rem;line-height:1}.qr-type-label{color:#374151;text-align:center;font-size:.7rem;font-weight:600;line-height:1.3}.qr-type-btn.active .qr-type-label{color:#6366f1}.qr-content-preview{background:#f9fafb;border:1px solid #e5e7eb;border-radius:8px;margin-top:4px;padding:10px 12px}.qr-content-preview-label{color:#9ca3af;text-transform:uppercase;letter-spacing:.04em;margin-bottom:4px;font-size:.72rem;font-weight:600;display:block}.qr-content-preview-code{color:#6366f1;word-break:break-all;font-family:Courier New,Courier,monospace;font-size:.78rem;line-height:1.5}.qr-preset-colors{flex-wrap:wrap;gap:8px;display:flex}.qr-color-preset{cursor:pointer;border-radius:8px;justify-content:center;align-items:center;width:36px;height:36px;transition:transform .15s,box-shadow .15s;display:flex}.qr-color-preset:hover{transform:scale(1.12)}.qr-color-preset.active{transform:scale(1.12);box-shadow:0 0 0 3px #6366f1}.qr-color-row{align-items:center;gap:8px;display:flex}.qr-color-input{cursor:pointer;background:0 0;border:1.5px solid #e5e7eb;border-radius:8px;flex-shrink:0;width:44px;height:38px;padding:2px}.qr-color-text{flex:1;font-family:Courier New,Courier,monospace;font-size:.875rem}.qr-range{accent-color:#6366f1;cursor:pointer;width:100%;height:4px;margin:4px 0 2px}.qr-range-labels{color:#9ca3af;justify-content:space-between;margin-top:2px;font-size:.72rem;display:flex}.qr-radio-group{flex-wrap:wrap;gap:6px;display:flex}.qr-radio-btn{color:#374151;cursor:pointer;background:#f9fafb;border:1.5px solid #e5e7eb;border-radius:6px;padding:6px 14px;font-family:inherit;font-size:.82rem;font-weight:600;transition:all .18s}.qr-radio-btn:hover{color:#6366f1;border-color:#6366f1}.qr-radio-btn.active{color:#6366f1;background:#eef2ff;border-color:#6366f1}.qr-upload-area{cursor:pointer;background:#f9fafb;border:2px dashed #e5e7eb;border-radius:10px;flex-direction:column;align-items:center;gap:6px;padding:1.25rem;transition:all .18s;display:flex}.qr-upload-area:hover{background:#f5f3ff;border-color:#6366f1}.qr-upload-icon{font-size:1.5rem}.qr-upload-text{color:#374151;font-size:.875rem;font-weight:600}.qr-upload-hint{color:#9ca3af;text-align:center;font-size:.75rem}.qr-logo-preview{background:#f9fafb;border:1px solid #e5e7eb;border-radius:8px;align-items:center;gap:12px;padding:10px;display:flex}.qr-logo-thumb{object-fit:contain;border:1px solid #e5e7eb;border-radius:6px;width:48px;height:48px}.qr-logo-name{color:#374151;margin:0 0 4px;font-size:.82rem;font-weight:500}.qr-logo-remove{color:#ef4444;cursor:pointer;background:0 0;border:none;padding:0;font-family:inherit;font-size:.78rem;font-weight:600}.qr-logo-remove:hover{text-decoration:underline}.qr-canvas-wrap{border:1px solid #e5e7eb;border-radius:12px;justify-content:center;align-items:center;margin-bottom:4px;padding:16px;display:flex}.qr-canvas-wrap canvas{border-radius:4px}.action-buttons{flex-wrap:wrap;gap:8px;display:flex}.btn-download{color:#fff;cursor:pointer;background:#6366f1;border:1.5px solid #6366f1;border-radius:8px;padding:10px 18px;font-family:inherit;font-size:.875rem;font-weight:700;transition:background .18s}.btn-download:hover{background:#4f46e5;border-color:#4f46e5}.btn-copy{color:#374151;cursor:pointer;background:#fff;border:1.5px solid #e5e7eb;border-radius:8px;padding:9px 16px;font-family:inherit;font-size:.875rem;font-weight:600;transition:all .18s}.btn-copy:hover{color:#6366f1;border-color:#6366f1}.btn-save{color:#15803d;cursor:pointer;background:#f0fdf4;border:1.5px solid #bbf7d0;border-radius:8px;padding:9px 16px;font-family:inherit;font-size:.875rem;font-weight:600;transition:all .18s}.btn-save:hover{background:#dcfce7}.btn-reset{color:#6b7280;cursor:pointer;background:#fff;border:1.5px solid #e5e7eb;border-radius:8px;padding:9px 16px;font-family:inherit;font-size:.875rem;font-weight:500;transition:all .18s}.btn-reset:hover{color:#6366f1;border-color:#6366f1}.btn-toggle{color:#6b7280;cursor:pointer;background:#fff;border:1.5px solid #e5e7eb;border-radius:8px;padding:7px 14px;font-family:inherit;font-size:.825rem;font-weight:500;transition:all .18s}.btn-toggle:hover{color:#6366f1;border-color:#6366f1}.stats-grid-2{grid-template-columns:1fr 1fr;gap:10px;display:grid}.stat-box{background:#f9fafb;border:1px solid #f3f4f6;border-radius:8px;flex-direction:column;gap:3px;padding:10px 12px;display:flex}.stat-box-label{color:#9ca3af;text-transform:uppercase;letter-spacing:.04em;font-size:.72rem;font-weight:600}.stat-box-value{color:#111827;font-size:.9rem;font-weight:700}.highlight-box{background:#eef2ff;border-color:#e0e7ff}.highlight-box .stat-box-value{color:#6366f1}.empty-state{color:#9ca3af;text-align:center;flex-direction:column;align-items:center;gap:12px;padding:2.5rem 1rem;display:flex}.empty-icon{font-size:2.5rem}.empty-state p{max-width:240px;font-size:.9rem;line-height:1.5}.qr-tips-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.qr-tips-list li{color:#4b5563;background:#f9fafb;border-left:3px solid #6366f1;border-radius:8px;padding:9px 12px;font-size:.85rem;line-height:1.6}.qr-tips-list li strong{color:#111827}.history-header{justify-content:space-between;align-items:center;margin-bottom:1rem;display:flex}.history-table-wrap{overflow-x:auto}.history-table{border-collapse:collapse;width:100%;font-size:.875rem}.history-table th{text-align:left;color:#6b7280;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap;background:#f9fafb;border-bottom:1px solid #e5e7eb;padding:9px 12px;font-size:.775rem;font-weight:600}.history-table td{color:#374151;border-bottom:1px solid #f3f4f6;padding:10px 12px}.history-table tbody tr:hover td{background:#f9fafb}.history-table tbody tr:last-child td{border-bottom:none}.info-tab-card{margin-bottom:1.25rem}.info-heading{color:#111827;margin:1.5rem 0 .6rem;font-size:1.1rem;font-weight:700}.info-heading:first-child{margin-top:0}.info-para{color:#4b5563;margin:0;font-size:.9rem;line-height:1.7}.group-cards{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-top:6px;display:grid}.group-card{background:#f9fafb;border:1px solid #e5e7eb;border-radius:10px;flex-direction:column;gap:4px;padding:14px;display:flex}.group-icon{margin-bottom:4px;font-size:1.35rem}.group-card strong{color:#111827;font-size:.875rem}.group-card p{color:#6b7280;margin:0;font-size:.78rem;line-height:1.5}.formula-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin-top:4px;display:grid}.formula-box{background:#f9fafb;border:1px solid #e5e7eb;border-radius:8px;flex-direction:column;gap:6px;padding:12px;display:flex}.formula-title{color:#6b7280;text-transform:uppercase;letter-spacing:.04em;font-size:.75rem;font-weight:700}.formula-code{color:#6366f1;background:#ede9fe;border-radius:6px;padding:6px 10px;font-family:Courier New,Courier,monospace;font-size:.82rem;line-height:1.5;display:block}.info-list{flex-direction:column;gap:8px;margin:4px 0 0;padding:0;list-style:none;display:flex}.info-list li{color:#4b5563;background:#f9fafb;border:1px solid #f3f4f6;border-radius:8px;padding:10px 14px;font-size:.875rem;line-height:1.6}.seo-section{background:#fff;border:1px solid #e5e7eb;border-radius:14px;margin-top:1.25rem;padding:1.75rem}.seo-section h2{color:#111827;margin:1.5rem 0 .5rem;font-size:1.1rem;font-weight:700}.seo-section h2:first-child{margin-top:0}.seo-section p{color:#4b5563;margin:0;font-size:.9rem;line-height:1.7}@media (width<=820px){.qr-main-grid{grid-template-columns:1fr}.qr-preview-col{position:static}}@media (width<=600px){.qr-page{padding:1rem 1rem 3rem}.tool-title{font-size:1.35rem}.qr-type-grid{grid-template-columns:repeat(2,1fr)}.qr-field-row,.formula-grid{grid-template-columns:1fr}.stats-grid-2{grid-template-columns:1fr 1fr}.action-buttons{flex-direction:column}.btn-download,.btn-copy,.btn-save,.btn-reset{text-align:center;width:100%}.tc-card{padding:1.125rem}.seo-section{padding:1.25rem}}