/* 拼豆图纸 — 全局样式(从 index.html <style> 拆出,逻辑与呈现分离)。
   选择器与顺序原样保留,层叠关系不变。修改样式后请同步给 index.html 里的 <link href="app.css?v=N"> 递增 N 作废缓存。 */
  :root{--accent:#c86a1e;--bg:#f7f5f2;--line:#e6e1e6;}
  *{box-sizing:border-box}
  body{font-family:system-ui,"Microsoft YaHei",sans-serif;background:var(--bg);margin:0;color:#222;touch-action:manipulation;overscroll-behavior:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}
  html,body{height:100%;overflow:hidden}
  header{background:#fff;border-bottom:1px solid var(--line);height:44px;display:flex;align-items:center;padding:0 12px;gap:4px}
  .menu{position:relative}
  .menu>summary{list-style:none;cursor:pointer;padding:7px 11px;border-radius:6px;font-size:15px;user-select:none}
  .menu>summary:hover{background:#f1eee9}.menu>summary::-webkit-details-marker{display:none}
  .menu-title-btn{background:none;border:none;font-size:15px;cursor:pointer;padding:7px 11px;border-radius:6px;color:#222;font-family:inherit;user-select:none}
  .menu-title-btn:hover{background:#f1eee9}
  .menu[open]>summary{background:#eae5df}
  .menu .drop{position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 4px 16px rgba(0,0,0,.1);padding:10px;min-width:230px;z-index:30;max-height:calc(100vh - 60px);overflow-y:auto;overscroll-behavior:contain}
  .menu .drop .sec{font-size:11px;color:#999;margin:8px 0 3px;font-weight:600}
  .menu .drop label{display:flex;align-items:center;gap:8px;font-size:13px;color:#444;margin:5px 0}
  .menu .drop input[type=number]{width:56px;padding:4px 6px;border:1px solid #ccc;border-radius:6px}
  .menu .drop input[type=text]{flex:1;padding:4px 8px;border:1px solid #ccc;border-radius:6px}
  .menu .drop .btn{width:100%;margin-top:3px}
  .btn{background:#fff;border:1px solid #ccc;border-radius:7px;padding:6px 10px;font-size:13px;cursor:pointer}
  .btn:hover{background:#f1eee9}.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
  .ic{width:34px;height:34px;border:1px solid transparent;background:none;border-radius:7px;font-size:17px;cursor:pointer;color:#444;display:flex;align-items:center;justify-content:center;position:relative}
  .ic:hover{background:#f1eee9;border-color:#ddd}
  .main{display:flex;gap:8px;padding:8px;height:calc(100vh - 52px);height:calc(100dvh - 52px);overflow:hidden}
  .top-row{flex:1 1 auto;min-width:0;min-height:0;display:flex;gap:8px;position:relative}
  .tools{flex:0 0 44px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 5px;display:flex;flex-direction:column;gap:5px;align-items:center;position:relative}
  .tools .ic.on{background:#fdeede;color:var(--accent);border-color:var(--accent)}
  .tg{display:flex;flex-direction:column;gap:5px;align-items:center;border-top:1px solid var(--line);padding-top:5px;margin-top:3px;width:100%}
  .tg:first-child{border-top:none;padding-top:0;margin-top:0}
  .tri{position:absolute;right:1px;bottom:1px;font-size:9px;color:#999;line-height:1;padding:0 2px;border-radius:3px}
  .tri:hover{color:var(--accent)}
  .pop{position:fixed;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 4px 16px rgba(0,0,0,.12);padding:8px 10px;z-index:60;display:none}
  .pop.show{display:block}
  .devRow{display:none!important}
  body.dev .devRow{display:flex!important}
  body.dev .devRow[data-inline]{display:inline-flex!important}
  .canvas-wrap{flex:1 1 auto;min-width:260px;min-height:0;position:relative;background:#fff}
  .canvas-column{flex:1 1 auto;min-width:260px;min-height:0;display:flex;flex-direction:column}
  #filledBar{flex:0 0 auto;background:#fff;border:1px solid var(--line);border-radius:10px;margin-top:8px;padding:6px 10px;display:flex;flex-direction:column;gap:4px}  #filledBar .fb-head{display:flex;align-items:center;gap:10px}
  #filledBar .fb-title{font-size:12px;font-weight:700;color:#555;white-space:nowrap}
  #filledBar .fb-lab{font-size:11px;color:#666;display:inline-flex;align-items:center;gap:3px;cursor:pointer;margin:0;white-space:nowrap}
  #filledBar #histSwatches{display:flex;flex-wrap:wrap;gap:3px;margin:0;max-height:74px;overflow-y:hidden;padding:2px;position:relative}
  #filledBar #histSwatches.expanded{max-height:none;overflow-y:visible}
  .fsw-more{width:32px;height:32px;flex:0 0 auto;border-radius:5px;border:2px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.08);background:#f4f1ec;color:#777;font-size:8px;font-weight:700;line-height:1.1;display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0;user-select:none}
  .fsw-more:hover{background:#ece7df;color:#555}
  #editor{display:block;width:100%;height:100%;border-radius:10px;cursor:crosshair;touch-action:none}
  .stats{position:absolute;left:10px;bottom:22px;font-size:12px;color:#666;background:rgba(255,255,255,.86);padding:3px 8px;border-radius:6px}
  .scrollbar{position:absolute;background:rgba(0,0,0,.10);border-radius:8px;z-index:10;display:none}
  .hsb{left:8px;right:8px;bottom:6px;height:10px}.vsb{right:6px;top:8px;bottom:22px;width:10px}
  .sbthumb{position:absolute;background:rgba(120,120,120,.55);border-radius:8px;cursor:pointer}.sbthumb:hover{background:rgba(120,120,120,.85)}
  .hsb .sbthumb{top:1px;bottom:1px;left:0}.vsb .sbthumb{left:1px;right:1px;top:0}
  .right{flex:0 0 300px;display:flex;flex-direction:column;gap:8px;overflow:hidden}
  #mobileTabs{display:none;gap:4px}
  .panel{background:#fff;border:1px solid var(--line);border-radius:10px}
  .layers{flex:0 0 auto;padding:10px;display:flex;flex-direction:column;max-height:48%;min-height:0;overflow:hidden}
  .palette-panel{flex:1;min-height:0;padding:10px;display:flex;flex-direction:column;overflow-y:auto}
  .ltitle{font-size:13px;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:8px}
  .palette-gear{background:none;border:none;cursor:pointer;font-size:14px;color:#999;padding:2px 3px;border-radius:5px;display:inline-flex;align-items:center;justify-content:center;user-select:none;transition:transform .15s}
  .palette-gear:hover{background:#f1eee9;color:#555}
  .palette-gear.on{color:var(--accent);transform:rotate(45deg)}
  .pal-tab{padding:3px 8px;border:1px solid #ccc;border-radius:6px;background:#fff;cursor:pointer;font-size:12px;color:#444;user-select:none}
  .pal-tab.on{background:#fdeede;color:var(--accent);border-color:var(--accent);font-weight:600}
  #layerList{overflow:auto;flex:1;min-height:60px}
  .layerrow{display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:6px;cursor:pointer;font-size:13px;margin-bottom:2px}
  .layerrow:hover{background:#f4f1ec}.layerrow.active{background:#fdeede;color:var(--accent)}.layerrow.seld{background:#e8f1fb}
  .layerrow .ico{width:16px;text-align:center}.layerrow .nm{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .layerrow .thumb{width:44px;height:44px;flex:0 0 auto;border:1px solid rgba(0,0,0,.10);border-radius:6px;background:#fff;display:block}
  .layerrow .eye{cursor:pointer;opacity:.6}.layerrow .eye:hover{opacity:1}
  .layerrow .more{cursor:pointer;opacity:.6;font-weight:700;font-size:15px;line-height:1}.layerrow .more:hover{opacity:1;color:var(--accent)}
  .lr-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:9px}
  .lr-top{display:flex;align-items:center;gap:6px;min-width:0}
  .lr-op{display:flex;align-items:center;min-width:0;padding:2px 2px 0}
  .lr-op input[type=range]{flex:1;min-width:0;height:4px;margin:0;cursor:pointer}
  .lr-op input[type=range]::-webkit-slider-thumb{width:10px;height:10px;border-radius:50%;background:var(--accent);border:none}
  .lr-op input[type=range]::-moz-range-thumb{width:10px;height:10px;border-radius:50%;background:var(--accent);border:none}
  #undoRedo{position:absolute;left:10px;bottom:52px;z-index:13;display:flex;gap:5px}
  #undoRedo .ic{width:40px;height:40px;font-size:22px;background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:8px}
  #undoRedo .ic:hover{background:#f1eee9}
  #undoRedo .ic:disabled{opacity:.35;cursor:default}
  .layer-more{position:fixed;z-index:70;background:#fff;border:1px solid var(--line);border-radius:9px;box-shadow:0 4px 16px rgba(0,0,0,.15);padding:6px 5px;min-width:150px}
  .layer-more .lm-btn{display:flex;align-items:center;gap:7px;width:100%;padding:7px 10px;border:none;background:none;font-size:13px;color:#444;cursor:pointer;border-radius:6px;text-align:left;user-select:none}
  .layer-more .lm-btn:hover{background:#f1eee9}
  /* 图纸处理(二级页面) */
  .pp-header{height:48px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;padding:0 12px}
  .pp-back{width:36px;height:36px;border:none;background:none;font-size:26px;line-height:1;color:#3b82f6;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:8px;user-select:none}
  .pp-back:hover{background:#eef4fb}
  .pp-h-title{font-size:16px;font-weight:700;color:#222}
  .pp-body{flex:1;display:flex;gap:8px;padding:8px;min-height:0;min-width:0}
  .pp-left{flex:1 1 auto;display:flex;flex-direction:column;min-width:0;min-height:0}
  .pp-canvas-wrap{flex:1 1 auto;min-height:0;position:relative;background:#fff;border:1px solid var(--line);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}
  #ppCanvas,#exportCanvas{display:block;max-width:100%;max-height:100%}
  .pp-next{position:absolute;right:10px;top:50%;transform:translateY(-50%);width:34px;height:34px;border:1px solid #ccc;border-radius:50%;background:rgba(255,255,255,.92);cursor:pointer;font-size:22px;line-height:1;color:#444;display:flex;align-items:center;justify-content:center;user-select:none;box-shadow:0 1px 4px rgba(0,0,0,.14)}
  .pp-next:hover{background:#eef4fb;color:#3b82f6}
  .pp-undo-redo{position:absolute;left:10px;bottom:10px;z-index:13;display:flex;gap:5px}
  .pp-undo-redo .ic{width:40px;height:40px;font-size:22px;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:8px;cursor:pointer;color:#444;display:flex;align-items:center;justify-content:center;line-height:1}
  .pp-undo-redo .ic:hover{background:#f1eee9}
  .pp-undo-redo .ic:disabled{opacity:.35;cursor:default}
  .pp-thumbs{flex:0 0 auto;height:76px;margin-top:8px;display:flex;gap:8px;align-items:center;overflow-x:auto;padding:4px;position:relative}
  .pp-thumbs::after{content:'';position:absolute;right:0;top:0;bottom:0;width:44px;background:linear-gradient(to right,rgba(247,245,242,0),rgba(247,245,242,1));pointer-events:none}
  .pp-thumb{flex:0 0 64px;height:64px;border:2px solid transparent;border-radius:8px;cursor:pointer;object-fit:contain;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.12)}
  .pp-thumb.on{border-color:#3b82f6}
  .pp-right{flex:0 0 270px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px;overflow:auto}
  .pp-tabs{display:flex;gap:4px;margin-bottom:8px}
  .exp-opt-hdr{font-size:14px;font-weight:700;color:#333;padding:4px 2px 8px}
  .exp-sec{font-size:12px;font-weight:700;color:#999;margin:10px 0 4px;padding-bottom:3px;border-bottom:1px solid #eee}
  .pp-tab{flex:1;padding:7px;border:1px solid #ccc;border-radius:6px;background:#fff;cursor:pointer;font-size:13px;color:#444;user-select:none}
  .pp-tab.on{background:var(--accent);color:#fff;border-color:var(--accent)}
  .pp-panel{display:flex;flex-direction:column;gap:8px}
  .pp-lab{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#444;gap:8px}
  .pp-lab input[type=range]{flex:1}
  .pp-lab input[type=color]{width:34px;height:24px;border:none;padding:0;background:none;cursor:pointer}
  .pp-note{font-size:12px;color:#999;line-height:1.5}
  .layerrow{touch-action:pan-y}   /* 触摸端:垂直滑动=滚动列表;长按(见 JS)才进入拖拽调序。pan-y 允许浏览器滚动手势,同时仍收 pointer 事件 */
  .layerrow.drag{opacity:.35;touch-action:none}   /* 拖拽中:接管手势 */
  .layerrow.dragover{background:#e8f1fb;outline:3px solid #c86a1e}
  .layerrow.ghost{position:fixed;z-index:60;pointer-events:none;opacity:.85;box-shadow:0 8px 22px rgba(0,0,0,.28);border:1px solid #c86a1e;border-radius:6px;background:#fff}
  #layerList{position:relative}
  .insertline{position:absolute;left:0;right:0;height:3px;background:#c86a1e;border-radius:2px;pointer-events:none;z-index:5}
  .layctrl{display:flex;gap:4px;margin-top:6px;flex-wrap:wrap}
  .show-opts{border-top:1px solid var(--line);padding-top:8px;margin-top:6px}
  .show-title{font-size:11px;font-weight:600;color:#999;margin-bottom:6px}
  .show-row{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-bottom:6px}
  .vopt{border:1px solid var(--line);background:#fff;color:#333;border-radius:6px;padding:4px 10px;font-size:12px;cursor:pointer}
  .vopt.on{background:#3b82f6;border-color:#3b82f6;color:#fff}
  .mini-ic.on{background:#f0ede8;color:var(--accent)}
  .lg-pop{position:fixed;z-index:70;background:#fff;border:1px solid var(--line);border-radius:9px;box-shadow:0 4px 16px rgba(0,0,0,.15);padding:10px;min-width:224px;display:none}
  .lg-pop.show{display:block}
  .lg-row{display:flex;align-items:center;gap:8px;white-space:nowrap;margin:0 0 9px}
  .lg-row:last-child{margin-bottom:0}
  .lg-lab{font-size:12px;font-weight:600;color:#555;min-width:68px}
  #viewIcons{position:absolute;top:158px;right:8px;display:flex;gap:4px;z-index:12}
  .vicon{width:28px;height:28px;border:1px solid #ccc;border-radius:6px;background:#fff;cursor:pointer;color:#999;display:flex;align-items:center;justify-content:center;padding:0}
  .vicon.on{color:#3b82f6;border-color:#3b82f6}
  .vicon.on-all{color:#1d4ed8;border-color:#1d4ed8}
  .vicon:hover{background:#f1eee9}
  .edgeOuter{stroke:currentColor}
  .edgeInner{stroke:#b0b0b0}
  .vicon.on .edgeInner{stroke:#b0b0b0}      /* outer:外蓝内灰 */
  .vicon.on-all .edgeInner{stroke:currentColor}   /* all:内边界也蓝(全蓝) */
  .vlab{font-size:12px;color:#666;display:inline-flex;align-items:center;gap:3px;cursor:pointer;margin:0}  .mini-ic{width:28px;height:28px;border:none;background:none;border-radius:6px;cursor:pointer;font-size:15px;font-weight:700;color:#444;display:flex;align-items:center;justify-content:center;line-height:1;padding:0}
  .mini-ic:hover{background:#f0ede8}
  .ptr{margin-bottom:6px}
  .pmodes{display:flex;gap:4px;margin-bottom:6px}
  .sec-hdr{font-size:12px;color:#999;margin:8px 0 4px;font-weight:700;border-bottom:1px solid #eee;padding-bottom:2px}
  .fullgrid{display:grid;grid-template-columns:repeat(8,26px);gap:3px;margin-bottom:6px}
  .swrow{display:flex;flex-wrap:wrap;gap:3px;margin-bottom:6px}
  .search{width:100%;padding:5px 8px;border:1px solid #ccc;border-radius:6px;margin-bottom:6px}
  .palette{display:flex;flex-wrap:wrap;gap:2px;align-content:flex-start}
  .sw{width:25px;height:25px;border-radius:5px;border:2px solid #fff;cursor:pointer;box-shadow:0 0 0 1px rgba(0,0,0,.08);display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700}
  .sw.fsw{width:32px;height:32px;flex-direction:column;font-size:8px;line-height:1.1;font-weight:600;gap:0}
  .sw.sel{outline:3px solid var(--accent)}
  .near-hdr{width:100%;font-size:11px;color:#c86a1e;font-weight:700;margin:2px 0;padding-top:3px;border-top:1px solid #eee}
  .fullpal{display:grid;grid-template-columns:repeat(8,25px);gap:3px;margin-bottom:8px}
  .hint{font-size:11px;color:#999;line-height:1.5}
  .drop-zone{display:none;position:fixed;inset:0;background:rgba(200,106,30,.12);border:3px dashed var(--accent);z-index:50;pointer-events:none}
  body.drag .drop-zone{display:block}
  input[type=number]{-moz-appearance:textfield;appearance:textfield}
  input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
  .combobox{position:relative;display:block;width:100%}
  .combobox>input{width:100%;padding:6px 28px 6px 7px;border:1px solid #ccc;border-radius:6px;-moz-appearance:textfield;appearance:textfield;margin:0}
  .combobox>button{position:absolute;right:2px;top:0;bottom:0;width:24px;border:none;background:none;cursor:pointer;color:#888;font-size:11px;padding:0}
  .combobox .cbmenu{display:none;position:absolute;left:0;right:0;top:calc(100% + 3px);background:#fff;border:1px solid #ccc;border-radius:7px;box-shadow:0 4px 14px rgba(0,0,0,.16);z-index:45;max-height:200px;overflow:auto}
  .combobox .cbrow{padding:6px 10px;font-size:13px;cursor:pointer}.combobox .cbrow:hover{background:#f1eee9}
  #toast{position:fixed;top:60px;left:50%;transform:translateX(-50%);background:#fff7d6;border:1px solid #e0c56f;color:#5a4a00;padding:10px 16px;border-radius:8px;font-size:14px;z-index:9999;box-shadow:0 4px 14px rgba(0,0,0,.15);opacity:0;transition:opacity .2s;pointer-events:none}
  #pickTip{position:fixed;width:120px;height:120px;border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.3),0 2px 8px rgba(0,0,0,.28);z-index:9000;display:none;pointer-events:none;align-items:center;justify-content:center;overflow:hidden}
  #pickTipCv{display:block;width:100%;height:100%;border-radius:50%;background:transparent}
  #toast.show{opacity:1}
  #cpOverlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:10000;align-items:center;justify-content:center}
  .cp-slider{display:flex;align-items:center;gap:8px;margin:11px 0}
  .cp-label{width:86px;font-size:12px;color:#666;letter-spacing:.3px;white-space:nowrap}
  .cp-track{flex:1;height:20px;border-radius:10px;position:relative;cursor:pointer;box-shadow:inset 0 0 0 1px rgba(0,0,0,.08);touch-action:none}
  .cp-thumb{position:absolute;top:-3px;width:26px;height:26px;border-radius:50%;border:3px solid #fff;box-shadow:0 1px 5px rgba(0,0,0,.4);transform:translateX(-50%);pointer-events:none;background:rgba(255,255,255,.85)}
  .cp-val{width:48px;text-align:right;font-family:Consolas,Menlo,monospace;font-size:13px;color:#333}
  /* 旋转标尺(移动工具下显示;绕当前视窗中心旋转图层) */
  #rotRuler{position:absolute;left:50%;bottom:8px;transform:translateX(-50%);width:min(560px,calc(100% - 40px));height:60px;background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:10px;box-shadow:0 3px 14px rgba(0,0,0,.16);z-index:20;display:none;user-select:none;touch-action:none}
  #rotRuler.drag{cursor:grabbing}
  .rr-ticks{position:absolute;top:0;left:0;right:0;height:26px}
  .rr-tick{position:absolute;top:0;width:1px;height:8px;background:#a6a6a6;transform:translateX(-.5px)}
  .rr-tick.mid{height:12px;background:#888}
  .rr-tick.long{height:16px;background:#555}
  .rr-tick-num{position:absolute;top:17px;font-size:9px;color:#777;transform:translateX(-50%);white-space:nowrap}
  .rr-arrow{position:absolute;top:2px;width:2px;height:24px;background:var(--accent);transform:translateX(-1px);border-radius:1px}
  .rr-center{position:absolute;bottom:3px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:8px}
  .rr-btn{width:22px;height:22px;border:1px solid #ccc;border-radius:6px;background:#fff;cursor:pointer;font-size:15px;line-height:1;color:#444;display:flex;align-items:center;justify-content:center;user-select:none}
  .rr-btn:hover{background:#f1eee9}
  .rr-ctick{width:3px;height:16px;background:var(--accent);border-radius:2px}
  .rr-val{position:absolute;bottom:4px;right:8px;font-family:Consolas,Menlo,monospace;font-size:12px;color:#333;padding:2px 6px;background:#f4f1ec;border-radius:5px}
  /* 导出面板:逐张缩略图,点击保存;zip 作为可选项 */
  #exportPanelBody .exp-item{display:flex;flex-direction:column;align-items:center;gap:2px;background:#faf9f7;border:1px solid #e6e1e6;border-radius:10px;padding:8px}
  #exportPanelBody .exp-item a{display:block;line-height:0}
  #exportPanelBody .exp-item img{display:block;max-width:230px;max-height:230px;border-radius:6px;border:1px solid #ddd;background:#fff;cursor:pointer;object-fit:contain}
  #exportPanelBody .exp-item img:hover{border-color:var(--accent)}
  #exportPanelBody .exp-cap{font-size:12px;color:#555;white-space:nowrap}
  /* 选区模式:普通/布尔加/布尔减(选区工具激活时在工具栏右方竖直显示) */
  #selModeBar{position:absolute;left:54px;top:10px;z-index:15;display:none;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:6px 5px;box-shadow:0 3px 12px rgba(0,0,0,.14)}
  #selModeBar .sm-btn{width:30px;height:30px;border:1px solid transparent;background:none;border-radius:7px;cursor:pointer;color:#444;display:flex;align-items:center;justify-content:center;user-select:none;touch-action:none}
  #selModeBar .sm-btn:hover{background:#f1eee9;border-color:#ddd}
  #selModeBar .sm-btn.on{background:#fdeede;color:var(--accent);border-color:var(--accent)}
  /* 窄屏/手机:改为上下两段——上=工具栏+画布,下=可切换的 图层/已填色/调色板 底部面板 */
  @media (max-width:700px){
    .main{flex-direction:column;gap:6px}
    .top-row{flex:1 1 auto;min-height:0;min-width:0}
    #selModeBar{left:50px}
    .tools{flex:0 0 40px;overflow-y:auto;min-height:0}   /* 工具栏超高时滚动,不侵入底部面板 */
    .tools .ic{width:30px;height:30px;font-size:15px}
    .tools .tri{font-size:8px}
    .layerrow .thumb{width:34px;height:34px}
    .canvas-column{min-width:0}
    .right{flex:0 0 46%;min-height:0;overflow:hidden;display:flex;flex-direction:column;gap:6px;padding:6px 8px}
    #mobileTabs{display:flex;gap:4px;flex:0 0 auto}
    #mobileTabs .mtab{flex:1;padding:8px 6px;border:1px solid #ccc;border-radius:7px;background:#fff;cursor:pointer;font-size:13px;text-align:center;color:#444}
    #mobileTabs .mtab.on{background:var(--accent);color:#fff;border-color:var(--accent)}
    .right .panel{max-height:none;overflow:auto;flex:1;min-height:0}   /* 面板在底部区域内填满并可滚动 */
    #filledBar{border:none;border-radius:0;margin-top:0;padding:6px 0;overflow:auto}
  }
  /* 绘图库主页(独立全屏首页) */
  #homeScreen{position:fixed;inset:0;z-index:9000;background:var(--bg);display:none;flex-direction:column;overflow:auto}
  body.home-open #homeScreen{display:flex}
  body.home-open header,body.home-open .main{display:none}
  .home-head{padding:18px 26px 8px;display:flex;align-items:center;gap:10px}
  .home-head b{font-size:20px}
  .home-head .home-sub{font-size:13px;color:#999}
  .home-body{flex:1;display:flex;gap:20px;padding:12px 26px 26px;min-height:0}
  .home-col{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;box-shadow:0 4px 16px rgba(0,0,0,.05);display:flex;flex-direction:column;min-height:0}
  .home-col-start{flex:0 0 300px}
  .home-col-recent{flex:1 1 auto;min-width:0}
  .home-col-title{font-size:14px;font-weight:700;color:#333;margin-bottom:12px;display:flex;align-items:center;gap:8px}
  .home-start-btns{display:flex;flex-direction:column;gap:10px}
  .home-start-btns .btn{display:flex;align-items:center;gap:10px;padding:13px 14px;font-size:15px;border-radius:10px;text-align:left;justify-content:flex-start}
  .home-start-btns .btn .home-btn-ic{font-size:19px;line-height:1}
  .home-start-btns .btn.primary{color:#fff}
  .home-listwrap{flex:1;overflow:auto;min-height:0}
  .home-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
  .home-item{background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px;cursor:pointer;display:flex;flex-direction:column;gap:6px;position:relative}
  .home-item:hover{border-color:var(--accent)}
  .home-item .home-check{position:absolute;right:8px;bottom:8px;width:24px;height:24px;border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.2);background:#fff;color:transparent;display:none;align-items:center;justify-content:center;font-size:15px;font-weight:700;line-height:1;pointer-events:none}
  .home-item.item-multi .home-check{display:flex}
  .home-item.item-sel{border-color:#3b82f6;box-shadow:0 0 0 2px rgba(59,130,246,.25)}
  .home-item.item-sel .home-check{background:#3b82f6;border-color:#3b82f6;color:#fff}
  .home-thumb{width:100%;aspect-ratio:1/1;border-radius:6px;overflow:hidden;display:flex;align-items:center;justify-content:center;border:1px solid #eee;background:#fff}
  .home-thumb img{max-width:100%;max-height:100%;object-fit:contain}
  .home-info{flex:1}
  .home-name{font-size:13px;color:#333;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .home-date{font-size:11px;color:#999;margin-top:2px}
  .home-del{position:absolute;top:6px;right:6px;padding:2px 5px;font-size:11px;opacity:.5}
  .home-del:hover{opacity:1}
  .home-fork{position:absolute;top:6px;right:40px;padding:2px 5px;font-size:12px;opacity:.5;line-height:1}
  .home-fork:hover{opacity:1;color:var(--accent)}
  .home-fork svg{width:15px;height:15px;vertical-align:-2px}
  @media (max-width:760px){
    .home-body{flex-direction:column}
    .home-col-start{flex:0 0 auto}
    .home-body{gap:12px;padding:10px 14px 20px}
    .home-head{padding:14px 16px 6px}
    .home-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}
  }
  /* 新建画布页(开始页与编辑器之间) */
  #newCanvasScreen{position:fixed;inset:0;z-index:9001;background:var(--bg);display:none;flex-direction:column;overflow:auto}
  #newCanvasScreen.nc-open{display:flex}
  body.nc-open header,body.nc-open .main{display:none}
  body.nc-open #homeScreen{display:none}
  .nc-body{flex:1;width:100%;max-width:640px;margin:0 auto;padding:4px 20px 40px;display:flex;flex-direction:column;gap:14px}
  .nc-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}
  .nc-sec{font-size:15px;font-weight:700;color:#333;margin-bottom:10px}
  .nc-sizer{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
  .nc-sizer label{font-size:13px;font-weight:600;color:#555}
  .nc-sizer .combobox{display:inline-flex;align-items:stretch;flex:0 0 auto;width:auto}
  .nc-sizer .combobox>input{width:80px;padding:5px 6px;border:1px solid #ccc;border-radius:6px 0 0 6px;border-right:none;position:static}
  .nc-sizer .combobox>button{width:26px;position:static;border:1px solid #ccc;border-radius:0 6px 6px 0;background:#fff;cursor:pointer;font-size:12px;color:#666}
  .nc-chips{display:flex;flex-wrap:wrap;gap:8px}
  .nc-chip{border:1px solid var(--line);border-radius:8px;background:#fff;padding:7px 12px;font-size:13px;font-weight:600;color:#333;cursor:pointer}
  .nc-chip:hover{border-color:var(--accent);color:var(--accent)}
  .nc-open{display:flex;flex-direction:column;gap:6px}
  .nc-open-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:9px;cursor:pointer;border:1px solid var(--line);background:#fff}
  .nc-open-item:hover{border-color:var(--accent)}
  .nc-open-thumb{width:44px;height:44px;flex:0 0 auto;border:1px solid rgba(0,0,0,.08);border-radius:6px;background:#fff;overflow:hidden;display:flex;align-items:center;justify-content:center}
  .nc-open-thumb img{max-width:100%;max-height:100%;object-fit:contain}
  .nc-open-item .nm{font-size:13px;font-weight:600;color:#333;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .nc-open-item .dt{font-size:11px;color:#999;margin-top:2px}