: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:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.pixel-canvas-wrapper{width:fit-content;height:fit-content;background-color:transparent;overflow:visible;padding:0;box-sizing:border-box;position:relative;pointer-events:none}.pixel-canvas-wrapper canvas{position:relative;top:0;left:0;pointer-events:all}.pixel-canvas{cursor:crosshair;border:2px solid #007bff;background-color:transparent;box-shadow:0 4px 8px #0000001a}.pixel-canvas:hover{border-color:#666}.canvas-loading{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#6c757d;font-size:16px;background:#ffffffe6;padding:20px;border-radius:8px;z-index:10}.loading-spinner{width:40px;height:40px;border:3px solid #f3f3f3;border-top:3px solid #007bff;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:16px}.drawing-board-container{width:100%;height:100%;display:flex;justify-content:center;align-items:center;position:relative;overflow:auto}.canvas-wrapper{display:inline-block;transition:transform .3s ease;position:relative;max-width:none;max-height:none;overflow:visible}.drawing-board-container.pointer-mode{cursor:grab}.drawing-board-container.pointer-mode:active{cursor:grabbing}.drawing-board-container.pointer-mode .canvas-wrapper{transition:none}.drag-mode-indicator{position:fixed;top:20px;left:50%;transform:translate(-50%);background:#000c;color:#fff;padding:8px 16px;border-radius:20px;font-size:14px;font-weight:500;z-index:10000;pointer-events:none;display:flex;align-items:center;gap:8px;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%) translateY(-10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.independent-panel{position:fixed;background:#fffffff2;border:1px solid rgba(0,0,0,.1);border-radius:12px;box-shadow:0 4px 20px #00000026;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);overflow:hidden;-webkit-user-select:none;user-select:none;transition:box-shadow .2s ease}.independent-panel:hover{box-shadow:0 6px 30px #0003}.independent-panel.dragging{transform:scale(1.02);box-shadow:0 8px 40px #0000004d;opacity:.9}.independent-panel.resizing{border-color:#007bff}.panel-header{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background:linear-gradient(135deg,#f0f8ffe6,#e6f0fae6);border-bottom:1px solid rgba(0,0,0,.05);cursor:move;font-size:13px;font-weight:600;color:#333}.panel-header:hover{background:linear-gradient(135deg,#f0f8ff,#e6f0fa)}.panel-title{display:flex;align-items:center;gap:6px}.panel-icon{font-size:14px}.panel-name{font-weight:600}.panel-controls{display:flex;gap:4px}.panel-control-btn{width:20px;height:20px;border:none;border-radius:4px;background:#ffffffb3;color:#666;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;transition:all .15s ease}.panel-control-btn:hover{background:#fff;transform:scale(1.1)}.minimize-btn:hover{color:orange;background:#ffa5001a}.close-btn:hover{color:#f44;background:#ff44441a}.panel-content{padding:12px;max-height:calc(90vh - 60px);overflow-y:auto}.panel-content::-webkit-scrollbar{width:6px}.panel-content::-webkit-scrollbar-track{background:#0000000d;border-radius:3px}.panel-content::-webkit-scrollbar-thumb{background:#0003;border-radius:3px}.panel-content::-webkit-scrollbar-thumb:hover{background:#0000004d}.resize-handle{position:absolute;bottom:0;right:0;width:16px;height:16px;cursor:nw-resize;color:#999;display:flex;align-items:center;justify-content:center;font-size:12px;background:linear-gradient(135deg,transparent 50%,rgba(0,0,0,.05) 50%);border-top-left-radius:4px}.resize-handle:hover{color:#007bff;background:linear-gradient(135deg,transparent 50%,rgba(0,123,255,.1) 50%)}.panel-manager{position:relative;width:100%;height:100%}.panel-control-toggle{position:fixed;top:20px;right:20px;z-index:9999;background:#ffffffe6;border:1px solid rgba(0,0,0,.1);border-radius:8px;padding:8px 12px;cursor:pointer;font-size:13px;font-weight:500;color:#333;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 2px 8px #0000001a;transition:all .2s ease}.panel-control-toggle:hover{background:#fff;transform:translateY(-1px);box-shadow:0 4px 12px #00000026}.panel-control-menu{position:fixed;top:60px;right:20px;z-index:9998;background:#fff;border:1px solid rgba(0,0,0,.1);border-radius:12px;box-shadow:0 8px 32px #0003;min-width:200px;overflow:hidden;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);animation:menuAppear .2s ease-out}.panel-menu-section{padding:8px}.panel-menu-divider{height:1px;background:#e0e0e0;margin:4px 12px}.panel-menu-item{width:100%;background:none;border:none;padding:10px 12px;cursor:pointer;display:flex;align-items:center;gap:12px;border-radius:8px;transition:all .15s ease;font-size:14px;text-align:left}.panel-menu-item:hover{background:#f0f8ff;color:#007bff}.panel-menu-item.active{background:#007bff1a;color:#007bff}.panel-menu-checkbox{width:16px;height:16px;display:flex;align-items:center;justify-content:center;font-size:12px}.snap-line{position:fixed;background:#007bff;pointer-events:none;z-index:9999;opacity:.7}.snap-line.vertical{width:1px;height:100vh;top:0}.snap-line.horizontal{height:1px;width:100vw;left:0}.tools-panel .tool-buttons{display:flex;gap:8px;flex-wrap:wrap}.tools-panel .tool-btn{padding:12px;border:2px solid rgba(0,0,0,.1);border-radius:8px;background:#ffffffe6;cursor:pointer;font-size:18px;transition:all .2s ease;min-width:50px;min-height:50px;display:flex;align-items:center;justify-content:center}.tools-panel .tool-btn:hover{background:#f0f8ff;border-color:#007bff;transform:translateY(-1px)}.tools-panel .tool-btn.active{background:#007bff1a;border-color:#007bff;color:#007bff}.zoom-panel .zoom-controls{display:flex;align-items:center;gap:12px;margin-bottom:16px}.zoom-panel .zoom-btn{width:36px;height:36px;border:1px solid rgba(0,0,0,.2);border-radius:6px;background:#ffffffe6;cursor:pointer;font-size:18px;font-weight:700;transition:all .2s ease}.zoom-panel .zoom-btn:hover:not(:disabled){background:#007bff1a;border-color:#007bff}.zoom-panel .zoom-btn:disabled{opacity:.5;cursor:not-allowed}.zoom-panel .zoom-display{font-weight:600;font-size:14px;min-width:50px;text-align:center}.zoom-panel .zoom-presets{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-bottom:12px}.zoom-panel .zoom-preset{padding:6px;border:1px solid rgba(0,0,0,.1);border-radius:4px;background:#ffffffe6;cursor:pointer;font-size:11px;transition:all .2s ease;text-align:center}.zoom-panel .zoom-preset:hover{background:#007bff1a;border-color:#007bff}.zoom-panel .zoom-preset.active{background:#007bff33;border-color:#007bff;color:#007bff;font-weight:700}.zoom-panel .zoom-reset{width:100%;padding:8px;border:1px solid rgba(0,0,0,.2);border-radius:6px;background:#ffffffe6;cursor:pointer;font-size:13px;font-weight:500;transition:all .2s ease}.zoom-panel .zoom-reset:hover{background:#007bff1a;border-color:#007bff}@media(max-width:768px){.independent-panel{min-width:280px;max-width:calc(100vw - 20px)}.panel-content{max-height:calc(100vh - 120px)}.panel-control-toggle{top:10px;right:10px;padding:6px 10px;font-size:12px}.panel-control-menu{top:50px;right:10px;min-width:180px}.tools-panel .tool-buttons{gap:6px}.tools-panel .tool-btn{min-width:44px;min-height:44px;font-size:16px}.zoom-panel .zoom-presets{grid-template-columns:repeat(3,1fr)}}.file-manager,.file-menu-container{position:relative}.file-menu-btn{background:#ffffffe6;border:1px solid rgba(0,0,0,.1);border-radius:8px;padding:8px 16px;cursor:pointer;font-size:14px;font-weight:500;color:#333;display:flex;align-items:center;gap:6px;transition:all .2s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 2px 8px #0000001a;-webkit-user-select:none;user-select:none}.file-menu-btn:hover{background:#fff;border-color:#007bff;transform:translateY(-1px);box-shadow:0 4px 12px #00000026}.file-menu{position:fixed;background:#fff;border:1px solid rgba(0,0,0,.1);border-radius:12px;box-shadow:0 8px 32px #0003;min-width:240px;z-index:10000;overflow:hidden;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);animation:menuAppear .2s ease-out}@keyframes menuAppear{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.file-menu-section{padding:8px}.file-menu-divider{height:1px;background:#e0e0e0;margin:4px 12px}.file-menu-item{width:100%;background:none;border:none;padding:10px 12px;cursor:pointer;display:flex;align-items:center;gap:12px;border-radius:8px;transition:all .15s ease;font-size:14px;text-align:left}.file-menu-item:hover:not(:disabled){background:#f0f8ff;color:#007bff}.file-menu-item:disabled{opacity:.5;cursor:not-allowed}.menu-icon{font-size:16px;width:20px;text-align:center}.menu-text{flex:1;font-weight:500}@media(max-width:768px){.file-menu{min-width:180px;font-size:13px}}.color-picker-tool{display:flex;flex-direction:column;gap:12px}.current-color-display{display:flex;align-items:center;gap:8px}.current-color-label{font-size:12px;color:#666;min-width:50px}.current-color-swatch{width:40px;height:24px;border:2px solid #ddd;border-radius:4px;cursor:pointer;box-shadow:inset 0 0 0 1px #0000001a}.quick-colors,.custom-colors{display:flex;flex-direction:column;gap:6px}.colors-label{font-size:12px;color:#666;font-weight:500}.color-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:4px}.color-item{position:relative;display:inline-block}.color-swatch{width:24px;height:24px;border:2px solid #ddd;border-radius:4px;cursor:pointer;transition:all .2s ease;box-shadow:inset 0 0 0 1px #0000001a}.color-swatch:hover{transform:scale(1.1);border-color:#007bff}.color-swatch.selected{border-color:#007bff;border-width:3px;transform:scale(1.1);box-shadow:0 0 8px #007bff4d}.color-remove{position:absolute;top:-4px;right:-4px;width:16px;height:16px;border-radius:50%;border:none;background:#f44;color:#fff;font-size:12px;line-height:1;cursor:pointer;display:none;align-items:center;justify-content:center}.color-item:hover .color-remove{display:flex}.color-remove:hover{background:#c00}.add-color{margin-top:4px}.add-color-btn{width:100%;padding:6px 12px;border:1px dashed #ccc;border-radius:4px;background:transparent;color:#666;font-size:12px;cursor:pointer;transition:all .2s ease}.add-color-btn:hover{border-color:#007bff;color:#007bff;background:#007bff0d}.color-input-group{display:flex;gap:4px;align-items:center}.color-input{width:32px;height:24px;border:none;border-radius:4px;cursor:pointer}.hex-input{flex:1;padding:4px 6px;border:1px solid #ddd;border-radius:4px;font-size:12px;font-family:monospace}.confirm-btn,.cancel-btn{width:24px;height:24px;border:none;border-radius:4px;cursor:pointer;font-size:12px;display:flex;align-items:center;justify-content:center}.confirm-btn{background:#28a745;color:#fff}.confirm-btn:hover{background:#218838}.cancel-btn{background:#dc3545;color:#fff}.cancel-btn:hover{background:#c82333}.custom-color-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.custom-color-item{display:flex;align-items:center;gap:8px;padding:6px;border-radius:6px;border:1px solid transparent;transition:all .2s ease}.custom-color-item:hover{background:#007bff0d;border-color:#007bff33}.custom-color-item .color-swatch{width:28px;height:28px;flex-shrink:0}.color-info{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}.hex-code{font-size:10px;font-family:monospace;color:#666;font-weight:500;text-transform:uppercase}.custom-color-item .color-remove{position:static;width:14px;height:14px;font-size:10px;margin-left:auto;opacity:0;transition:opacity .2s ease}.custom-color-item:hover .color-remove{opacity:1;display:flex}.empty-color-slot{display:flex;align-items:center;gap:8px}.empty-swatch{width:28px;height:28px;border:2px dashed #ccc;border-radius:4px;background:#f9f9f9;flex-shrink:0}.empty-color-slot .hex-code{color:#ccc;font-style:italic}.thumbnail-size{font-size:11px;color:#666;background:#f5f5f5;padding:3px 8px;border-radius:4px;font-weight:500;text-align:center;margin-bottom:8px;display:block}.thumbnail-container{display:flex;justify-content:center;align-items:center;min-height:80px;background:#fafafa;border-radius:6px;border:1px solid #eee;padding:8px}.thumbnail-canvas{max-width:100%;max-height:120px;border:1px solid #ddd;background:#fff;border-radius:3px;image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges}.thumbnail-container:empty:after{content:"暂无内容";color:#999;font-size:12px}.stats-dimensions{background:#f0f0f0;padding:4px 8px;border-radius:4px;font-size:12px;color:#666;font-weight:700;text-align:center;margin-bottom:12px}.color-list{max-height:300px;overflow-y:auto;margin-bottom:12px}.color-list::-webkit-scrollbar{width:6px}.color-list::-webkit-scrollbar-track{background:#f1f1f1;border-radius:3px}.color-list::-webkit-scrollbar-thumb{background:#888;border-radius:3px}.color-list::-webkit-scrollbar-thumb:hover{background:#555}.color-item{display:flex;align-items:center;gap:8px;padding:6px;margin-bottom:6px;background:#f8f8f8;border-radius:4px;transition:all .2s ease}.color-item:hover{background:#f0f0f0;transform:translate(2px)}.color-block{width:24px;height:24px;border:1px solid #333;border-radius:3px;box-shadow:0 1px 2px #0000001a;flex-shrink:0}.color-info{display:flex;align-items:center;gap:8px;flex:1}.color-hex{font-family:Courier New,monospace;font-size:11px;font-weight:700;color:#333;background:#fff;padding:1px 4px;border-radius:2px;border:1px solid #ddd}.color-count{font-size:11px;color:#666;font-weight:700;margin-left:auto}.no-data{text-align:center;padding:40px 20px;color:#999;font-size:14px}.stats-footer{border-top:2px solid #e0e0e0;padding-top:8px;display:flex;justify-content:space-between}.total-info{display:flex;flex-direction:column;align-items:center}.total-info .label{font-size:10px;color:#666;margin-bottom:2px}.total-info .value{font-size:14px;font-weight:700;color:#333}@media(max-width:768px){.stats-dimensions{font-size:11px}}@media(prefers-color-scheme:dark){.stats-dimensions{background:#333;color:#aaa}.color-item{background:#333}.color-item:hover{background:#3a3a3a}.color-hex{background:#444;color:#f0f0f0;border-color:#555}.color-count{color:#aaa}.stats-footer{border-top-color:#444}.total-info .label{color:#aaa}.total-info .value{color:#f0f0f0}.no-data{color:#666}}.new-file-dialog-overlay{position:fixed;inset:0;background:#0009;display:flex;justify-content:center;align-items:center;z-index:2000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.new-file-dialog{background:#fff;border-radius:16px;box-shadow:0 20px 60px #0000004d;min-width:500px;max-width:600px;max-height:90vh;overflow:hidden;animation:dialogAppear .3s ease-out}@keyframes dialogAppear{0%{opacity:0;transform:scale(.9) translateY(-20px)}to{opacity:1;transform:scale(1) translateY(0)}}.new-file-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid #e0e0e0;background:#f8f9fa}.new-file-header h3{margin:0;color:#333;font-size:18px;font-weight:600}.close-btn{background:none;border:none;font-size:24px;cursor:pointer;color:#666;width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.close-btn:hover{background:#e9ecef;color:#333}.new-file-content{padding:24px;max-height:60vh;overflow-y:auto}.size-selection h4{margin:0 0 8px;color:#333;font-size:16px}.size-note{margin:0 0 20px;color:#f56565;font-size:14px;padding:8px 12px;background:#fed7d7;border-radius:6px;border-left:3px solid #f56565}.preset-sizes{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:20px}.size-option{border:2px solid #e0e0e0;border-radius:10px;padding:16px;cursor:pointer;transition:all .2s ease;text-align:center;position:relative}.size-option:hover{border-color:#007bff;transform:translateY(-2px);box-shadow:0 4px 12px #007bff33}.size-option.selected{border-color:#007bff;background:#f0f8ff}.size-label{font-weight:600;color:#333;margin-bottom:4px}.size-desc{font-size:12px;color:#666;margin-bottom:10px}.preview-grid{margin:0 auto;background:#ddd;border-radius:2px;background-image:linear-gradient(45deg,#ccc 25%,transparent 25%),linear-gradient(-45deg,#ccc 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ccc 75%),linear-gradient(-45deg,transparent 75%,#ccc 75%);background-size:4px 4px;background-position:0 0,0 2px,2px -2px,-2px 0px}.custom-size-section{border-top:1px solid #e0e0e0;padding-top:20px}.custom-checkbox{display:flex;align-items:center;cursor:pointer;font-weight:500;margin-bottom:12px}.custom-checkbox input{margin-right:8px;scale:1.2}.custom-inputs{display:flex;align-items:center;gap:12px;padding:16px;background:#f8f9fa;border-radius:8px;border:1px solid #e0e0e0}.input-group{display:flex;flex-direction:column;gap:4px}.input-group label{font-size:12px;color:#666;font-weight:500}.input-group input{width:60px;padding:6px 8px;border:1px solid #ccc;border-radius:4px;text-align:center;font-size:14px}.separator{font-size:18px;color:#666;margin:0 4px}.selected-info{margin-top:20px;padding:16px;background:#e6f3ff;border-radius:8px;border-left:3px solid #007bff}.selected-info strong{display:block;color:#333;font-size:16px;margin-bottom:8px}.info-details{display:flex;gap:20px;font-size:12px;color:#666}.new-file-actions{display:flex;gap:12px;padding:16px 24px;border-top:1px solid #e0e0e0;background:#f8f9fa;justify-content:flex-end}.new-file-actions button{padding:10px 20px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;min-width:80px}.cancel-btn{background:#fff;border:1px solid #ccc;color:#666}.cancel-btn:hover{background:#f5f5f5;border-color:#999}.create-btn{background:#007bff;border:1px solid #007bff;color:#fff}.create-btn:hover{background:#0056b3;border-color:#0056b3}@media(max-width:600px){.new-file-dialog{min-width:90vw;margin:20px}.preset-sizes{grid-template-columns:1fr}.custom-inputs{flex-direction:column;gap:8px}.info-details{flex-direction:column;gap:4px}}.pixelator-container{padding:10px 15px 15px;max-width:100%;margin:0 auto;height:100%;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;position:relative}.pixelator-header{text-align:center;margin-bottom:20px}.pixelator-header h2{font-size:20px;color:#333;margin-bottom:5px}.pixelator-subtitle{color:#666;font-size:12px}.pixelator-upload{display:flex;gap:10px;justify-content:center;margin-bottom:20px}.upload-btn,.download-btn,.pindou-btn,.import-btn,.reset-btn{padding:8px 16px;font-size:14px;border:none;border-radius:6px;cursor:pointer;transition:all .3s ease}.upload-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.upload-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px #667eea66}.download-btn{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff}.download-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px 15px #f5576c66}.download-btn:disabled,.pindou-btn:disabled,.import-btn:disabled{opacity:.5;cursor:not-allowed}.pindou-btn{background:linear-gradient(135deg,#4facfe,#00f2fe);color:#fff}.pindou-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px 15px #4facfe66}.import-btn{background:linear-gradient(135deg,#11998e,#38ef7d);color:#fff}.import-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px 15px #11998e66}.reset-btn{background:linear-gradient(135deg,#fa709a,#fee140);color:#fff}.reset-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px #fa709a66}.pixelator-main{display:flex;gap:20px;margin-bottom:20px;align-items:flex-start}.pixelator-left{flex:0 0 320px;display:flex;flex-direction:column;gap:15px}.pixelator-controls,.original-preview{background:#fff;border-radius:8px;padding:15px;box-shadow:0 2px 8px #00000014}.original-preview h3{margin-bottom:12px;color:#333;font-size:14px;text-align:center}.pixelator-result{flex:1;background:#fff;border-radius:8px;padding:15px;box-shadow:0 2px 8px #00000014;height:fit-content}.pixelator-result h3{margin-bottom:15px;color:#333;font-size:16px;text-align:center}.result-canvas-wrapper{position:relative;display:flex;justify-content:center;align-items:center;min-height:300px;background:#f8f8f8;border-radius:8px;overflow:hidden}.result-canvas-wrapper canvas{max-width:100%;max-height:600px;height:auto;display:block;image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges}.pixelator-controls h3{margin-bottom:15px;color:#333;font-size:16px}.control-group{margin-bottom:18px}.control-group label{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:14px;color:#555}.label-text{font-weight:500}.label-value{background:#f0f0f0;padding:2px 8px;border-radius:4px;font-family:monospace;color:#667eea;font-weight:700}.control-group input[type=range]{width:50%;height:6px;border-radius:3px;background:linear-gradient(to right,#e0e0e0,#667eea);outline:none;-webkit-appearance:none}.control-group input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:#667eea;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 5px #0003}.control-group input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2);box-shadow:0 3px 8px #667eea66}.control-group input[type=range]:disabled{opacity:.5;cursor:not-allowed}.control-hint{font-size:12px;color:#999;margin-top:5px;font-style:italic}.canvas-wrapper{position:relative;display:flex;justify-content:center;align-items:center;min-height:120px;max-height:200px;background:#f8f8f8;border-radius:6px;overflow:hidden}.canvas-wrapper canvas{max-width:100%;max-height:180px;height:auto;display:block;image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges}.image-info{position:absolute;bottom:10px;right:10px;background:#000000b3;color:#fff;padding:4px 8px;border-radius:4px;font-size:12px;font-family:monospace}.processing-overlay{position:absolute;inset:0;background:#ffffffe6;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:10px;border-radius:6px}.spinner{width:40px;height:40px;border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.processing-overlay span{color:#667eea;font-weight:500}.pixelator-placeholder{background:#fff;border-radius:8px;padding:40px 20px;box-shadow:0 2px 8px #00000014;text-align:center}.placeholder-content{max-width:400px;margin:0 auto}.placeholder-icon{font-size:48px;margin-bottom:15px}.placeholder-content p{color:#666;margin-bottom:10px}.placeholder-hint{font-size:14px;color:#999}@media(max-width:768px){.pixelator-main{flex-direction:column;gap:15px}.pixelator-left{flex:none;width:100%}.control-group input[type=range]{width:70%}.result-canvas-wrapper{min-height:250px}.result-canvas-wrapper canvas{max-height:400px}.pixelator-upload{flex-direction:column;align-items:center}.upload-btn,.download-btn,.pindou-btn,.import-btn,.reset-btn{width:200px}}.welcome-container{position:fixed;inset:0;width:100vw;height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px;overflow:auto}.welcome-header{text-align:center;margin-bottom:40px;color:#fff}.app-main-title{font-size:48px;font-weight:800;margin:0 0 12px;color:#fff;text-shadow:0 2px 20px rgba(0,0,0,.1)}.app-subtitle{font-size:18px;margin:0;opacity:.95;color:#fff;font-weight:400}.welcome-tools{display:flex;gap:16px;margin-bottom:20px;justify-content:center}.tool-button{background:#fff3;color:#fff;border:2px solid rgba(255,255,255,.3);padding:12px 24px;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;gap:8px}.tool-button:hover{background:#ffffff4d;border-color:#ffffff80;transform:translateY(-2px);box-shadow:0 4px 20px #0003}.pixel-recognition-btn{animation:pulse 2s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.welcome-content{display:flex;gap:40px;background:#fff;border-radius:24px;padding:40px;box-shadow:0 20px 60px #0003;max-width:900px;width:100%;align-items:stretch}.welcome-section{flex:1;display:flex;flex-direction:column}.section-header{text-align:center;margin-bottom:24px}.section-title{font-size:24px;font-weight:700;color:#2d3748;margin:0 0 8px}.section-desc{font-size:14px;color:#718096;margin:0}.import-drop-zone{flex:1;background:#f7fafc;border:2px dashed #cbd5e0;border-radius:16px;padding:40px 30px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease;min-height:200px}.import-drop-zone:hover{background:#edf2f7;border-color:#667eea;transform:translateY(-2px)}.import-drop-zone.dragging{background:#e9d8fd;border-color:#764ba2;transform:scale(1.02)}.drop-icon{font-size:48px;margin-bottom:16px}.drop-text{font-size:16px;color:#4a5568;text-align:center;margin:0 0 12px;line-height:1.5}.drop-hint{font-size:13px;color:#a0aec0;margin:0}.welcome-divider{display:flex;align-items:center;justify-content:center;position:relative;width:40px}.divider-text{background:#fff;padding:8px 0;color:#a0aec0;font-size:14px;font-weight:500;position:relative;z-index:1}.welcome-divider:before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:#e2e8f0;transform:translate(-50%)}.size-options{display:flex;flex-direction:column;gap:12px;flex:1}.size-option{background:#fff;border:2px solid #e2e8f0;border-radius:12px;padding:16px;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:16px}.size-option:hover{border-color:#667eea;transform:translate(4px);box-shadow:0 4px 12px #667eea26}.size-option.hovered{background:linear-gradient(135deg,#667eea0d,#764ba20d)}.size-preview{width:48px;height:48px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.preview-dots{display:grid;gap:1px;width:40px;height:40px}.preview-dot{background:#e2e8f0;border-radius:1px;transition:background .3s ease}.size-option:hover .preview-dot{background:linear-gradient(135deg,#9f7aea,#667eea)}.size-info{display:flex;flex-direction:column;gap:4px;text-align:left}.size-label{font-size:18px;font-weight:600;color:#2d3748}.size-desc{font-size:13px;color:#718096}@media(max-width:768px){.app-main-title{font-size:36px}.app-subtitle{font-size:16px}.welcome-content{flex-direction:column;padding:30px;gap:30px}.welcome-divider{width:100%;height:40px}.welcome-divider:before{left:0;right:0;top:50%;width:100%;height:1px;transform:translateY(-50%)}.divider-text{padding:0 16px}}@media(max-width:480px){.welcome-container{padding:16px}.welcome-header{margin-bottom:24px}.app-main-title{font-size:28px}.app-subtitle{font-size:14px}.welcome-content{padding:20px;gap:20px}.section-title{font-size:20px}.import-drop-zone{padding:30px 20px;min-height:160px}.drop-icon{font-size:36px}.drop-text{font-size:14px}.size-option{padding:12px}.size-preview{width:40px;height:40px}.preview-dots{width:32px;height:32px}.size-label{font-size:16px}}.pixelator-modal{position:fixed;inset:0;background:#000c;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);z-index:10000;display:flex;flex-direction:column;overflow:hidden}.pixelator-modal-header{position:relative;height:50px;display:flex;justify-content:flex-end;align-items:center;padding:0 20px}.pixelator-modal .close-btn{width:40px;height:40px;border-radius:50%;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;font-size:24px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;border:none}.pixelator-modal .close-btn:hover{background:#fff3;transform:rotate(90deg)}.pixelator-modal .pixelator-container{background:#fff;border-radius:12px 12px 0 0;margin:0 auto;width:90%;max-width:1200px;height:calc(100vh - 60px);overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch}@media(max-width:768px){.pixelator-modal .pixelator-container{width:100%;border-radius:0;height:calc(100vh - 50px)}.pixelator-modal-header{height:50px;padding:0 15px}}.reference-layer-controls{background:#fff;border-radius:8px;padding:16px;box-shadow:0 2px 8px #0000001a;border:1px solid #dee2e6;margin-bottom:16px;max-width:320px}.reference-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid #e9ecef}.reference-header h4{margin:0;font-size:16px;color:#333}.visibility-toggle{background:none;border:none;font-size:20px;cursor:pointer;padding:4px;transition:all .2s ease}.visibility-toggle:hover{transform:scale(1.1)}.visibility-toggle.hidden{opacity:.5}.reference-controls{display:flex;flex-direction:column;gap:12px}.upload-section{text-align:center}.upload-button{display:inline-block;padding:10px 20px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500;transition:all .3s ease;box-shadow:0 2px 4px #0000001a}.upload-button:hover{transform:translateY(-2px);box-shadow:0 4px 8px #0003}.image-info{display:flex;justify-content:space-between;align-items:center;padding:8px;background:#f8f9fa;border-radius:4px}.image-name{font-size:13px;color:#495057;font-weight:500}.clear-button{background:#dc3545;color:#fff;border:none;border-radius:50%;width:20px;height:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:12px;transition:all .2s ease}.opacity-control{display:flex;align-items:center;gap:8px}.opacity-control label{font-size:13px;color:#495057;font-weight:500;min-width:60px}.opacity-control input[type=range]{flex:1;cursor:pointer}.opacity-control input[type=range]:disabled{opacity:.5;cursor:not-allowed}.opacity-value{font-size:13px;color:#333;font-weight:600;min-width:40px;text-align:right}.scale-control{display:flex;align-items:center;gap:8px}.scale-control label{font-size:13px;color:#495057;font-weight:500;min-width:60px}.scale-control button{padding:4px 12px;background:#f8f9fa;border:1px solid #dee2e6;border-radius:4px;cursor:pointer;font-size:14px;transition:all .2s ease}.scale-value{font-size:13px;color:#333;font-weight:600;min-width:50px;text-align:center}.position-hint{font-size:12px;color:#6c757d;background:#f8f9fa;padding:8px;border-radius:4px;line-height:1.4}.reference-image-layer{position:absolute;top:0;left:0;pointer-events:none;transition:opacity .3s ease}.reference-image-layer img{display:block;image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges}.layer-manager{background:#fff;border-radius:8px;padding:16px;box-shadow:0 2px 8px #0000001a;border:1px solid #dee2e6;max-width:320px}.layer-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid #e9ecef}.layer-header h4{margin:0;font-size:16px;color:#333}.expand-indicator{font-size:12px;color:#999;margin-left:4px;transition:all .2s ease}.layer-list{display:flex;flex-direction:column;gap:8px}.layer-item{background:#f8f9fa;border-radius:6px;padding:12px;cursor:pointer;transition:all .2s ease;border:2px solid transparent}.layer-item:hover{background:#e9ecef;transform:translate(2px)}.layer-item.active{background:#e3f2fd;border-color:#007bff}.layer-item.expanded{border-radius:6px 6px 0 0;border-bottom:none}.layer-item.locked{opacity:.7}.layer-info{display:flex;align-items:center;gap:8px;margin-bottom:8px}.layer-icon{font-size:18px}.layer-name{font-size:14px;font-weight:500;color:#333;flex:1}.layer-controls{display:flex;gap:8px;float:right;margin-top:-28px}.visibility-btn,.lock-btn{background:none;border:none;font-size:16px;cursor:pointer;padding:4px;transition:all .2s ease}.visibility-btn:hover,.lock-btn:hover{transform:scale(1.1)}.visibility-btn.hidden,.lock-btn.unlocked{opacity:.5}.lock-btn:disabled{cursor:not-allowed;opacity:.3}.layer-opacity{display:flex;align-items:center;gap:8px;margin-top:8px}.layer-opacity label{font-size:12px;color:#6c757d;min-width:45px}.layer-opacity input[type=range]{flex:1;cursor:pointer}.layer-opacity span{font-size:12px;color:#333;min-width:35px;text-align:right;font-weight:600}.transform-panel-inline{padding:12px;background:#f8f9fa;border-radius:0 0 6px 6px;margin-top:-2px;border:2px solid #007bff;border-top:none;animation:slideDown .3s ease}@keyframes slideDown{0%{opacity:0;max-height:0;overflow:hidden}to{opacity:1;max-height:500px}}.transform-panel h5{margin:0 0 12px;font-size:14px;color:#495057}.transform-group{margin-bottom:12px}.transform-group label{display:block;font-size:12px;color:#6c757d;margin-bottom:4px;font-weight:500}.position-inputs{display:flex;gap:12px}.input-group{display:flex;align-items:center;gap:4px;flex:1}.input-group span{font-size:12px;color:#495057;min-width:20px}.input-group input[type=number]{flex:1;padding:4px 8px;border:1px solid #dee2e6;border-radius:4px;font-size:12px}.scale-control{display:flex;gap:8px;align-items:center}.scale-control button{width:28px;height:28px;border:1px solid #dee2e6;background:#f8f9fa;border-radius:4px;cursor:pointer;font-size:16px;transition:all .2s ease}.scale-control button:hover{background:#e9ecef;border-color:#adb5bd}.scale-control input[type=number]{width:80px;padding:4px 8px;border:1px solid #dee2e6;border-radius:4px;font-size:12px;text-align:center}.rotation-control{display:flex;align-items:center;gap:8px}.rotation-control input[type=range]{flex:1}.rotation-control span{font-size:12px;color:#333;min-width:35px;text-align:right;font-weight:600}.transform-actions{display:flex;gap:8px;margin-top:16px}.transform-actions button{flex:1;padding:6px 12px;background:#f8f9fa;border:1px solid #dee2e6;border-radius:4px;cursor:pointer;font-size:12px;transition:all .2s ease}.transform-actions button:hover{background:#e9ecef;border-color:#adb5bd;transform:translateY(-1px)}.transform-hint{margin-top:12px;padding:8px;background:#fff3cd;border-radius:4px;font-size:12px;color:#856404;line-height:1.4}.upload-section{text-align:center;margin-bottom:12px}.upload-button{display:inline-block;padding:8px 16px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:4px;cursor:pointer;font-size:12px;font-weight:500;transition:all .3s ease}.upload-button:hover{transform:translateY(-1px);box-shadow:0 2px 4px #0003}.image-info{display:flex;justify-content:space-between;align-items:center;padding:6px 8px;background:#f8f9fa;border-radius:4px;margin-bottom:12px;font-size:12px;color:#495057}.clear-button{background:#dc3545;color:#fff;border:none;border-radius:50%;width:18px;height:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:10px;transition:all .2s ease}.clear-button:hover{background:#c82333;transform:scale(1.1)}@font-face{font-family:Zpix;src:url(/assets/zpix-BzS3V1VT.ttf) format("truetype");font-weight:400;font-style:normal;font-display:swap}.pixel-font{font-family:Zpix,PingFang SC,Microsoft YaHei,monospace;font-size:12px;line-height:1.2;font-weight:400;-webkit-font-smoothing:none;-moz-osx-font-smoothing:grayscale;image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges}.pixel-font-small{font-family:Zpix,PingFang SC,Microsoft YaHei,monospace;font-size:10px;line-height:1.1;-webkit-font-smoothing:none;-moz-osx-font-smoothing:grayscale}.pixel-font-medium{font-family:Zpix,PingFang SC,Microsoft YaHei,monospace;font-size:12px;line-height:1.2;-webkit-font-smoothing:none;-moz-osx-font-smoothing:grayscale}.pixel-font-large{font-family:Zpix,PingFang SC,Microsoft YaHei,monospace;font-size:14px;line-height:1.3;-webkit-font-smoothing:none;-moz-osx-font-smoothing:grayscale}@media(-webkit-min-device-pixel-ratio:2),(min-resolution:192dpi){.pixel-font,.pixel-font-small,.pixel-font-medium,.pixel-font-large{-webkit-font-smoothing:none;-moz-osx-font-smoothing:grayscale;text-rendering:geometricPrecision}}*{box-sizing:border-box}html,body{margin:0;padding:0;width:100%;height:100%;font-family:Zpix,PingFang SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,monospace;font-size:12px;line-height:1.2;-webkit-font-smoothing:none;-moz-osx-font-smoothing:grayscale;overflow:hidden}.app{height:100vh;width:100vw;background:#f0f0f0;position:relative;overflow:hidden;touch-action:none;-webkit-touch-callout:none;-webkit-user-select:none;-khtml-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-webkit-user-drag:none;-khtml-user-drag:none;-moz-user-drag:none;-o-user-drag:none;user-drag:none}.left-sidebar{position:fixed;top:20px;left:20px;width:min(250px,calc(50vw - 40px));max-width:280px;max-height:calc(100vh - 40px);background:#fffffffa;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(0,0,0,.1);border-radius:12px;padding:16px;box-shadow:0 8px 32px #00000026;overflow-y:auto;z-index:1000;transition:all .3s ease;pointer-events:auto}.right-sidebar{position:fixed;top:20px;right:20px;width:min(250px,calc(50vw - 40px));max-width:280px;max-height:calc(100vh - 40px);background:#fffffffa;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(0,0,0,.1);border-radius:12px;padding:16px;box-shadow:0 8px 32px #00000026;overflow-y:auto;z-index:1000;transition:all .3s ease;pointer-events:auto}.mode-switcher{position:fixed;top:20px;left:50%;transform:translate(-50%);z-index:1001;display:flex;gap:5px;background:#fffffff2;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);padding:5px;border-radius:10px;box-shadow:0 4px 20px #00000026;border:1px solid rgba(0,0,0,.1)}.mode-btn{padding:8px 16px;font-size:14px;font-weight:500;border:none;border-radius:6px;background:transparent;color:#666;cursor:pointer;transition:all .3s ease}.mode-btn:hover{background:#0000000d}.mode-btn.active{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 2px 10px #667eea4d}.global-file-manager{position:fixed;top:70px;left:50%;transform:translate(-50%);z-index:1001;pointer-events:auto}.global-file-manager .file-manager{background:#fffffff2;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(0,0,0,.1);border-radius:8px;box-shadow:0 4px 20px #00000026;transition:all .3s ease}.global-file-manager .file-menu-btn{padding:8px 16px;font-size:14px;font-weight:500;color:#495057;background:transparent;border:none;border-radius:6px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;gap:6px}.global-file-manager .file-menu-btn:hover{background:#0000000d;color:#212529}.canvas-container{position:absolute;top:0;left:0;width:100vw;height:100vh;background:#f0f0f0;z-index:1;pointer-events:none;overflow:auto;padding:50px;box-sizing:border-box}.canvas-container .drawing-board-container{pointer-events:auto}@media(max-width:1024px){.left-sidebar{width:min(220px,calc(45vw - 20px));top:10px;left:10px}.right-sidebar{width:min(220px,calc(45vw - 20px));top:10px;right:10px}.global-file-manager{top:10px}}@media(max-width:768px){.left-sidebar,.right-sidebar{width:min(180px,calc(40vw - 15px));max-height:calc(50vh - 20px);font-size:12px;padding:12px}.global-file-manager{top:5px}.global-file-manager .file-menu-btn{padding:6px 12px;font-size:12px}}@media(max-width:480px){.left-sidebar{top:10px;left:5px;width:min(150px,calc(35vw - 10px));max-height:40vh;padding:8px}.right-sidebar{bottom:10px;top:auto;right:5px;width:min(150px,calc(35vw - 10px));max-height:40vh;padding:8px}.global-file-manager{top:50px}}.save-dialog-overlay{position:fixed;inset:0;width:100vw;height:100vh;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:9999;overflow-y:auto;padding:20px;box-sizing:border-box;pointer-events:auto}.save-dialog{background:#fff;border-radius:8px;box-shadow:0 4px 12px #0003;min-width:420px;max-width:550px;width:90%;max-height:90vh;overflow:auto;position:relative;margin:auto;pointer-events:auto}.save-dialog-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #dee2e6}.save-dialog-header h3{margin:0;color:#495057;font-size:16px}.close-btn{background:none;border:none;font-size:20px;cursor:pointer;color:#6c757d;padding:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:4px}.close-btn:hover{background:#f8f9fa;color:#495057}.save-dialog-content{padding:20px}.save-dialog-content p{margin:0 0 8px;color:#495057;line-height:1.4}.save-dialog-content p:last-child{margin-bottom:0;font-weight:500}.save-dialog-actions{display:flex;gap:8px;padding:16px 20px;border-top:1px solid #dee2e6;justify-content:flex-end}.save-dialog-actions button{padding:8px 20px;border:1px solid;border-radius:4px;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s ease;min-width:100px;white-space:nowrap;box-sizing:border-box;height:40px;display:flex;align-items:center;justify-content:center}.save-btn{background:#28a745;border-color:#28a745;color:#fff}.save-btn:hover{background:#218838;border-color:#1e7e34}.discard-btn{background:#dc3545;border-color:#dc3545;color:#fff}.discard-btn:hover{background:#c82333;border-color:#bd2130}.cancel-btn{background:#fff;border-color:#6c757d;color:#6c757d}.cancel-btn:hover{background:#f8f9fa;border-color:#5a6268;color:#5a6268}.save-dialog-actions .save-btn,.save-dialog-actions .discard-btn,.save-dialog-actions .cancel-btn{height:40px;line-height:1;vertical-align:middle}@media(max-width:480px){.save-dialog{min-width:300px;max-width:95%;margin:10px}.save-dialog-actions{flex-direction:column;gap:8px}.save-dialog-actions button{width:100%;min-width:auto}}