:root{--primary-color:#2563eb;--primary-light:#3b82f6;--primary-dark:#1d4ed8;--primary-darker:#1e40af;--primary-glow:#2563eb66;--primary-bg:#2563eb14;--primary-border:#2563eb4d;--bg-white:#fff;--bg-gray:#f8fafc;--bg-slate:#f1f5f9;--bg-hover:#eff6ff;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--border-color:#e2e8f0;--border-light:#f1f5f9;--shadow-sm:0 1px 3px #2563eb14;--shadow-md:0 4px 12px #2563eb1f;--shadow-lg:0 8px 24px #2563eb2e;--shadow-glow:0 0 20px #2563eb4d;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.35s ease}*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-gray);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Microsoft 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var(--transition-slow);background:linear-gradient(90deg,#0000,#fff3,#0000);position:absolute;top:0;left:-100%}.btn-primary:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.btn-primary:hover:before{left:100%}.btn-primary:active{transform:translateY(0)}.usage-badge{color:#999;pointer-events:none;background:0 0;align-items:center;gap:3px;font-size:12px;font-weight:400;display:inline-flex;position:absolute;top:8px;right:12px}.btn-secondary{background:var(--bg-white);color:var(--primary-color);border:1px solid var(--primary-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-normal);padding:16px 28px;font-size:16px;font-weight:500}.btn-secondary:hover{background:var(--primary-bg);border-color:var(--primary-color);box-shadow:var(--shadow-sm)}.btn-disabled{color:var(--text-muted)!important;border:1px dashed var(--border-color)!important;box-shadow:none!important;cursor:not-allowed!important;background:0 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.overlay-image-wrapper{cursor:move;display:inline-block;position:relative}.preview-canvas-item .overlay-image-wrapper.drag-active{outline:2px dashed var(--primary-color)}.preview-canvas-item .overlay-image{z-index:1;width:100%;height:auto;display:block;position:relative}.preview-subtitle{margin:0 auto 16px;display:block;position:relative;overflow:visible}.preview-subtitle .overlay-image-wrapper{cursor:move;display:inline-block;position:relative}.preview-subtitle .overlay-image-wrapper.drag-active{outline:2px dashed var(--primary-color)}.preview-subtitle .overlay-image{display:block}.preview-subtitle-text{white-space:nowrap;font-size:18px;font-weight:600;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.preview-item{border-radius:var(--radius-md);background:#6a5acd08;gap:16px;margin-bottom:16px;padding:16px;display:flex}.preview-images{flex-wrap:wrap;gap:8px;display:flex}.preview-images img{object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--border-light);width:80px;height:80px}.preview-item-info{flex-direction:column;flex:1;gap:8px;display:flex}.preview-item-row{align-items:center;gap:8px;display:flex}.preview-item-index{min-width:24px;color:var(--primary-color);font-size:14px;font-weight:600}.preview-item-name{font-size:14px}.preview-item-spec{color:var(--text-muted);font-size:12px}.preview-item-author,.preview-item-price{font-size:12px}.cut-preview-panel{z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#1a1a2ef7;flex-direction:column;display:flex;position:fixed;inset:0}.cut-preview-header{color:#fff;background:#1a1a2ee6;border-bottom:1px solid #6a5acd33;flex-wrap:wrap;flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:16px 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#ffa5004d}.cut-preview-image{cursor:crosshair;box-sizing:border-box;flex:1;justify-content:center;align-items:flex-start;padding:20px;display:flex;overflow:auto}.cut-image-wrapper{transform-origin:top;border-radius:var(--radius-sm);flex-shrink:0;line-height:0;display:inline-block;position:relative;overflow:hidden;box-shadow:0 4px 20px #0000004d}.cut-image-wrapper img{width:auto;height:auto;display:block}.cut-line{pointer-events:auto;cursor:row-resize;height:2px;transition:all var(--transition-fast);background:#ef4444;position:absolute;left:0;right:0;box-shadow:0 0 8px #ef444499}.cut-line:hover{height:4px;box-shadow:0 0 12px #ef4444cc}.preview-canvas-with-cuts{flex-direction:row;align-items:flex-start;gap:15px;display:flex}.cut-results{flex-direction:column;gap:10px;display:flex}.cut-results-header{color:var(--text-muted);text-align:center;cursor:pointer;border-radius:var(--radius-sm);transition:all var(--transition-fast);-webkit-user-select:none;user-select:none;padding:8px 12px;font-size:12px;font-weight:500}.cut-results-header:hover{background:var(--primary-bg);color:var(--primary-color)}.cut-results-edit{opacity:.7;margin-left:6px;font-size:11px}.cut-results-images{flex-direction:column;gap:10px;display:flex}.cut-result-img{border:1px solid var(--border-color);border-radius:var(--radius-sm);width:auto;max-width:200px;height:auto;box-shadow:var(--shadow-sm);transition:all var(--transition-fast)}.cut-result-img:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.admin-wrench-btn{color:#fff;cursor:pointer;width:52px;height:52px;transition:all var(--transition-normal);z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:linear-gradient(135deg,#6a5acdcc,#7b68eecc);border:none;border-radius:50%;justify-content:center;align-items:center;display:flex;position:fixed;bottom:24px;right:24px;box-shadow:0 4px 16px #6a5acd66}.admin-wrench-btn:hover{background:linear-gradient(135deg, var(--primary-color), var(--primary-light));transform:rotate(45deg)scale(1.1);box-shadow:0 6px 24px #6a5acd99}.admin-overlay{z-index:2000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);animation:fadeIn var(--transition-normal) ease;background:#1a1a2eb3;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.admin-panel{background:var(--bg-white);border-radius:var(--radius-lg);width:90%;max-width:700px;max-height:80vh;animation:slideUp var(--transition-normal) ease;overflow:hidden;box-shadow:0 20px 60px #0000004d}.admin-login{text-align:center;padding:32px}.admin-login h3{color:var(--text-primary);margin-bottom:8px;font-size:22px;font-weight:600}.admin-login>p{color:var(--text-muted);margin-bottom:24px;font-size:14px}.admin-password-input{border:2px solid var(--border-color);border-radius:var(--radius-md);text-align:center;width:100%;transition:all var(--transition-fast);outline:none;margin-bottom:20px;padding:12px 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var(--border-color)}.admin-btn.cancel:hover{background:var(--border-light)}.admin-btn.export-excel{color:#fff;box-shadow:var(--shadow-sm);background:linear-gradient(135deg,#10b981,#059669)}.admin-btn.export-excel:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.admin-logs{flex-direction:column;max-height:80vh;display:flex}.admin-logs-header{border-bottom:1px solid var(--border-color);background:var(--bg-white);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.admin-logs-header h3{color:var(--text-primary);font-size:18px;font-weight:600}.admin-logs-actions{gap:10px;display:flex}.admin-logs-table-wrapper{flex:1;padding:0 24px 24px;overflow:auto}.admin-logs-table{border-collapse:collapse;width:100%;margin-top:16px}.admin-logs-table th{background:var(--bg-gray);text-align:left;color:var(--text-secondary);border-bottom:2px solid var(--border-color);padding:12px 14px;font-size:13px;font-weight:600;position:sticky;top:0}.admin-logs-table 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var(--transition-fast);background:var(--bg-gray);position:relative;overflow:hidden}.remove-bg-variant-item:hover{border-color:var(--primary-color);box-shadow:var(--shadow-md);transform:translateY(-2px)}.remove-bg-variant-item.selected{border-color:var(--primary-color);box-shadow:0 0 0 3px var(--primary-bg)}.remove-bg-variant-item img{background:repeating-conic-gradient(#e5e7eb 0% 25%,#0000 0% 50%) 50%/20px 20px;width:100%;height:auto;display:block}.remove-bg-variant-label{color:var(--text-primary);background:var(--bg-white);text-align:center;border-top:1px solid var(--border-light);padding:8px 12px;font-size:13px;font-weight:500}.remove-bg-variant-check{background:var(--primary-color);color:#fff;width:24px;height:24px;box-shadow:var(--shadow-sm);border-radius:50%;justify-content:center;align-items:center;font-size:14px;font-weight:600;display:flex;position:absolute;top:8px;right:8px}.preview-canvas-item.drag-active{position:relative}.image-drag-overlay{pointer-events:none;z-index:10;opacity:0;transition:opacity .1s;position:absolute;inset:0}.image-drag-overlay.overlay-visible{opacity:1}.image-drag-border{border:2px dashed var(--primary-color);border-radius:var(--radius-sm);pointer-events:none;animation:1s linear infinite dashMove;position:absolute;inset:0}@keyframes dashMove{0%{stroke-dashoffset:0}to{stroke-dashoffset:20px}}.image-resize-handle{background:var(--primary-color);cursor:nwse-resize;pointer-events:auto;width:14px;height:14px;box-shadow:var(--shadow-sm);transition:all var(--transition-fast);z-index:20;border:2px solid #fff;border-radius:50%;position:absolute}.image-resize-handle:hover{box-shadow:var(--shadow-md);transform:scale(1.2)}.image-resize-handle-tl{cursor:nwse-resize;top:-6px;left:-6px}.image-resize-handle-tr{cursor:nesw-resize;top:-6px;right:-6px}.image-resize-handle-bl{cursor:nesw-resize;bottom:-6px;left:-6px}.image-resize-handle-br{cursor:nwse-resize;bottom:-6px;right:-6px}.image-drag-info{color:#fff;border-radius:var(--radius-sm);white-space:nowrap;pointer-events:none;box-shadow:var(--shadow-md);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#2563ebf2;padding:6px 12px;font-size:12px;position:absolute;bottom:-32px;left:50%;transform:translate(-50%)}.image-drag-info:before{content:"";border-bottom:4px solid #2563ebf2;border-left:4px solid #0000;border-right:4px solid #0000;width:0;height:0;position:absolute;top:-4px;left:50%;transform:translate(-50%)}.remove-bg-variant-edit{border:1px solid var(--border-color);cursor:pointer;width:28px;height:28px;color:var(--text-secondary);transition:all var(--transition-fast);z-index:2;opacity:0;background:#fffffff2;border-radius:50%;justify-content:center;align-items:center;font-size:14px;display:flex;position:absolute;bottom:32px;right:8px}.remove-bg-variant-item:hover .remove-bg-variant-edit{opacity:1}.remove-bg-variant-edit:hover{background:var(--primary-color);color:#fff;border-color:var(--primary-color);transform:scale(1.1)}.eraser-editor-overlay{z-index:3000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);animation:fadeIn var(--transition-normal) ease;background:#0f172acc;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.eraser-editor-panel{background:var(--bg-white);border-radius:var(--radius-lg);width:90%;max-width:700px;max-height:85vh;animation:slideUp var(--transition-normal) ease;flex-direction:column;display:flex;overflow:hidden;box-shadow:0 20px 60px #0006}.eraser-editor-header{border-bottom:1px solid var(--border-color);background:var(--bg-white);justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.eraser-editor-header h3{color:var(--text-primary);margin:0;font-size:16px;font-weight:600}.eraser-editor-toolbar{border-bottom:1px solid var(--border-light);background:var(--bg-gray);align-items:center;gap:12px;padding:12px 24px;display:flex}.eraser-editor-toolbar label{color:var(--text-secondary);white-space:nowrap;font-size:13px;font-weight:500}.eraser-editor-toolbar input[type=range]{appearance:none;background:var(--border-color);cursor:pointer;border-radius:2px;outline:none;flex:1;max-width:200px;height:4px}.eraser-editor-toolbar input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--primary-color);cursor:pointer;width:16px;height:16px;box-shadow:var(--shadow-sm);border-radius:50%}.eraser-editor-toolbar span{color:var(--text-primary);min-width:40px;font-size:13px;font-weight:500}.eraser-btn-save{background:linear-gradient(135deg, var(--primary-color), var(--primary-light));color:#fff;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);border:none;margin-left:auto;padding:6px 16px;font-size:13px;font-weight:500}.eraser-btn-save:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.eraser-btn-cancel{background:var(--bg-white);color:var(--text-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);padding:6px 16px;font-size:13px;font-weight:500}.eraser-btn-cancel:hover{background:var(--bg-gray);border-color:var(--text-muted)}.eraser-editor-canvas-wrapper{background:var(--bg-gray);flex:1;justify-content:center;align-items:center;min-height:400px;padding:24px;display:flex;overflow:auto}.eraser-editor-canvas-wrapper canvas{cursor:crosshair;border-radius:var(--radius-md);box-shadow:var(--shadow-md);background:repeating-conic-gradient(#e5e7eb 0% 25%,#0000 0% 50%) 50%/20px 20px}.batch-cut-page{background:var(--bg-gray);flex-direction:column;min-height:100vh;display:flex}.batch-cut-header{background:var(--bg-white);z-index:100;align-items:center;gap:20px;padding:16px 24px;display:flex;position:sticky;top:0;box-shadow:0 2px 8px #0000000f}.back-btn{border:1px solid var(--border-light);background:var(--bg-white);border-radius:var(--radius-md);cursor:pointer;color:var(--text-secondary);transition:all var(--transition-fast);padding:8px 16px;font-size:14px}.back-btn:hover{border-color:var(--primary-color);color:var(--primary-color);background:var(--primary-bg)}.batch-cut-header h1{color:var(--text-primary);flex:1;margin:0;font-size:20px;font-weight:600}.header-stats{color:var(--text-secondary);gap:20px;font-size:14px;display:flex}.header-stats span{background:var(--primary-bg);border-radius:var(--radius-md);color:var(--primary-color);padding:6px 12px;font-weight:500}.batch-cut-content{flex:1;display:flex;overflow:hidden}.batch-cut-panel{background:var(--bg-white);border-right:1px solid var(--border-light);flex-direction:column;width:320px;display:flex;overflow-y:auto}.panel-section{border-bottom:1px solid var(--border-light);padding:16px}.panel-section h3{color:var(--text-primary);margin:0 0 12px;font-size:14px;font-weight:600}.btn-primary.add-btn{border-radius:var(--radius-md);cursor:pointer;width:100%;height:42px;transition:all var(--transition-fast);color:#0a0a0a;background:#2563eb73;border:none;font-size:14px;font-weight:500;position:relative;overflow:hidden}.btn-primary.add-btn:hover{background:#2563eb8c;transform:translateY(-1px);box-shadow:0 4px 12px #2563eb33}.image-list{flex-direction:column;flex:1;gap:10px;padding:12px;display:flex;overflow-y:auto}.empty-tip{text-align:center;color:var(--text-muted);padding:40px 20px}.empty-tip p{margin:0 0 8px;font-size:14px}.empty-tip .tip-text{color:var(--text-muted);opacity:.7;font-size:12px}.image-item{background:var(--bg-gray);border-radius:var(--radius-md);transition:all var(--transition-fast);border:1px solid #0000;align-items:center;gap:10px;padding:10px;display:flex}.image-item:hover{border-color:var(--primary-color);background:var(--primary-bg)}.image-thumb{border-radius:var(--radius-sm);flex-shrink:0;width:48px;height:48px;position:relative;overflow:hidden}.image-thumb img{object-fit:cover;width:100%;height:100%}.cut-badge{background:var(--primary-color);color:#fff;border-radius:8px;padding:1px 4px;font-size:10px;font-weight:500;position:absolute;top:2px;right:2px}.image-info{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.image-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500;overflow:hidden}.image-size{color:var(--text-muted);font-size:11px}.image-delete{width:24px;height:24px;color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:16px;line-height:1;display:flex}.image-delete:hover{background:var(--error-color);color:#fff;transform:scale(1.1)}.panel-actions{border-top:1px solid var(--border-light);flex-direction:column;gap:10px;padding:16px;display:flex}.btn-primary.cut-btn,.btn-primary.export-btn{border-radius:var(--radius-md);cursor:pointer;width:100%;height:44px;transition:all var(--transition-fast);border:none;font-size:14px;font-weight:600}.btn-primary.cut-btn{color:#0a0a0a;background:#2563eb73}.btn-primary.cut-btn:hover{background:#2563eb8c;transform:translateY(-1px);box-shadow:0 4px 12px #2563eb33}.btn-primary.export-btn{background:linear-gradient(135deg, var(--primary-color), var(--primary-light));color:#fff;box-shadow:0 2px 8px var(--primary-shadow)}.btn-primary.export-btn:hover:not(:disabled){box-shadow:0 4px 12px var(--primary-shadow);transform:translateY(-1px)}.btn-primary.export-btn:disabled{opacity:.5;cursor:not-allowed}.batch-cut-preview{flex-direction:column;flex:1;padding:20px;display:flex;overflow:hidden}.preview-header{margin-bottom:16px}.preview-header h3{color:var(--text-primary);margin:0;font-size:16px;font-weight:600}.preview-content{background:var(--bg-white);border-radius:var(--radius-lg);flex:1;padding:20px;overflow-y:auto;box-shadow:0 2px 8px #0000000a}.preview-empty{height:100%;color:var(--text-muted);justify-content:center;align-items:center;font-size:14px;display:flex}.cut-results-list{flex-direction:column;gap:24px;display:flex}.cut-result-group{flex-direction:column;gap:12px;display:flex}.cut-result-title{color:var(--text-primary);border-bottom:1px solid var(--border-light);padding-bottom:8px;font-size:14px;font-weight:600}.cut-result-images{flex-wrap:wrap;gap:12px;display:flex}.cut-slice-thumb{border-radius:var(--radius-sm);max-width:150px;height:auto;transition:all var(--transition-fast);background:var(--bg-gray);box-shadow:0 2px 6px #0000001a}.cut-slice-thumb:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.cut-modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0f172ad9;flex-direction:column;display:flex;position:fixed;inset:0}.cut-modal-panel{flex-direction:column;height:100%;display:flex}.cut-modal-header{background:var(--bg-white);z-index:1;align-items:center;gap:20px;padding:12px 24px;display:flex;box-shadow:0 2px 8px #0000001a}.cut-modal-header>span{color:var(--text-primary);flex:1;font-size:14px;font-weight:600}.cut-modal-actions{align-items:center;gap:12px;display:flex}.cut-image-nav{gap:8px;display:flex}.cut-nav-btn{border:1px solid var(--border-light);background:var(--bg-white);border-radius:var(--radius-md);cursor:pointer;color:var(--text-secondary);transition:all var(--transition-fast);padding:8px 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var(--transition-fast);box-shadow:0 2px 6px var(--primary-shadow);border-radius:50%}.cut-zoom-slider::-webkit-slider-thumb:hover{box-shadow:0 0 10px var(--primary-glow);transform:scale(1.2)}.cut-zoom-label{color:var(--text-muted);text-align:center;min-width:40px;font-size:12px}.cut-btn{border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);border:none;padding:8px 16px;font-size:13px;font-weight:500}.cut-btn.undo{background:var(--bg-gray);color:var(--text-secondary)}.cut-btn.undo:hover{background:var(--border-light)}.cut-btn.confirm{background:linear-gradient(135deg, var(--primary-color), var(--primary-light));color:#fff;box-shadow:0 2px 6px var(--primary-shadow)}.cut-btn.confirm:hover{box-shadow:0 4px 10px var(--primary-shadow);transform:translateY(-1px)}.cut-btn.apply-all{color:#fff;background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 2px 6px #10b9814d}.cut-btn.apply-all:hover{transform:translateY(-1px);box-shadow:0 4px 10px 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