/* 图层分层 tab 样式 · 画板本体版（2026-09-14）
   分层 tab 工作区 = 画板：左栏（新建分层表单 + 历史列表）/ 中间无限画布 / 右栏图层面板
   命名：.layer-container 外壳 + .ls-* 画板工作台 */

.layer-container{display:flex;flex-direction:column;height:100%;min-height:0;}

/* ============ 顶栏 ============ */
.ls-topbar{display:flex;align-items:center;gap:12px;padding:8px 14px;flex-shrink:0;
  background:var(--bg-base);border-bottom:1px solid var(--border);}
.ls-title{display:flex;align-items:center;gap:7px;font-size:13.5px;flex-shrink:0;}
.ls-title-icon{display:inline-flex;color:var(--primary);}
.ls-title b{font-weight:700;}
.ls-job-state{display:flex;align-items:center;gap:7px;min-width:0;font-size:12px;color:var(--text-muted);
  background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:5px 11px;}
.ls-job-state .ls-state-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text);}
.ls-job-state .ls-state-text.muted{color:var(--text-muted);}
.ls-job-state .layer-spinner{flex-shrink:0;}
.ls-narrow-toggle{display:none;}
.ls-top-actions{display:flex;align-items:center;gap:7px;margin-left:auto;}
.ls-btn{display:inline-flex;align-items:center;gap:5px;padding:6px 11px;border-radius:8px;border:1px solid var(--border);
  background:var(--bg-card);color:var(--text);font-size:12px;font-weight:600;cursor:pointer;text-decoration:none;transition:border-color .12s,color .12s,background .12s;white-space:nowrap;}
.ls-btn:hover{border-color:var(--primary);color:var(--primary);}
.ls-btn.on{border-color:var(--primary);color:var(--primary);background:var(--primary-bg);}

/* ============ 主体三栏 ============ */
.ls-body{display:flex;flex:1;min-height:0;position:relative;}

/* ---- 左栏：新建分层 + 历史 ---- */
.ls-side{width:236px;flex-shrink:0;display:flex;flex-direction:column;min-height:0;
  background:var(--bg-base);border-right:1px solid var(--border);}
.ls-side-sec{display:flex;flex-direction:column;gap:8px;padding:12px 12px 10px;border-bottom:1px solid var(--border);}
.ls-side-title{font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;}
.ls-history-sec{flex:1;min-height:0;padding-bottom:6px;border-bottom:none;}
.ls-form-row{display:flex;align-items:center;gap:8px;}
.ls-form-row label{font-size:12px;color:var(--text-muted);flex-shrink:0;width:52px;}
.layer-n{flex:1;min-width:0;padding:6px 8px;border-radius:7px;border:1px solid var(--border);background:var(--bg-deep);color:var(--text);font-size:12px;outline:none;}
.ls-form-row input[data-role="layer-prompt"]{flex:1;min-width:0;padding:6px 8px;border-radius:7px;border:1px solid var(--border);background:var(--bg-deep);color:var(--text);font-size:12px;outline:none;}
.ls-form-row input[data-role="layer-prompt"]:focus,.layer-n:focus{border-color:var(--primary);}

/* 上传框（紧凑：空态 = 虚线加号；有图 = 缩略图铺满） */
.layer-upload-box{position:relative;border:1.5px dashed var(--border-light);border-radius:9px;overflow:hidden;cursor:pointer;
  transition:border-color .15s,background .15s;height:88px;
  background:repeating-conic-gradient(rgba(127,127,127,.14) 0% 25%, transparent 0% 50%) 50%/12px 12px,var(--bg-deep);}
.layer-upload-box:hover,.layer-upload-box.dragover{border-color:var(--primary);background-color:var(--primary-bg);}
.ls-upload-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--text-muted);}
.ls-upload-plus{font-size:22px;line-height:1;color:var(--primary);}
.ls-upload-empty span:nth-child(2){font-size:11.5px;}
.ls-upload-hint{font-size:10px;color:var(--text-dim);}
.ls-upload-thumb{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;display:block;}
.ls-upload-del{position:absolute;top:4px;right:4px;width:20px;height:20px;border-radius:50%;border:none;background:rgba(0,0,0,.65);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;z-index:2;}
.ls-upload-del:hover{background:var(--red);}

.layer-submit-btn{padding:9px 14px;border:none;border-radius:8px;background:var(--primary);color:#fff;font-size:13px;font-weight:700;cursor:pointer;transition:opacity .15s,transform .1s;letter-spacing:.5px;}
.layer-submit-btn:hover{opacity:.9;}
.layer-submit-btn:active{transform:translateY(1px);}
.layer-submit-btn:disabled{opacity:.5;cursor:not-allowed;}
.layer-cost-tip{font-size:10.5px;color:var(--text-muted);text-align:center;margin-top:-3px;}

/* 任务队列（运行中任务 + 阶段 + 预估进度） */
.ls-queue-sec{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:10px 10px 8px;margin:2px 0;}
.ls-queue-list{display:flex;flex-direction:column;gap:8px;}
.ls-queue-item{display:flex;gap:8px;align-items:center;}
.ls-queue-thumb{width:40px;height:40px;flex-shrink:0;border-radius:7px;object-fit:cover;display:block;
  background:repeating-conic-gradient(rgba(127,127,127,.22) 0% 25%, transparent 0% 50%) 50%/8px 8px,var(--bg-deep);}
.ls-queue-thumb-empty{display:flex;align-items:center;justify-content:center;color:var(--text-dim);}
.ls-queue-thumb-empty svg{width:16px;height:16px;}
.ls-queue-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px;}
.ls-queue-line1{display:flex;align-items:baseline;gap:7px;}
.ls-queue-line1 b{font-size:12px;color:var(--text);font-weight:600;}
.ls-queue-phase{font-size:10.5px;color:var(--primary);}
.ls-queue-elapsed{font-size:10.5px;color:var(--text-dim);margin-left:auto;font-variant-numeric:tabular-nums;}
.ls-queue-bar{height:4px;border-radius:2px;background:var(--bg-deep);overflow:hidden;}
.ls-queue-bar-fill{height:100%;border-radius:2px;background:linear-gradient(90deg,var(--primary),#3fb950);transition:width .6s linear;}
.ls-queue-pct{font-size:10px;color:var(--text-dim);font-variant-numeric:tabular-nums;}

/* 历史列表 */
.ls-hist-list{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:2px;margin:0 -4px;padding:0 4px;}
.ls-hist-list::-webkit-scrollbar{width:8px;}
.ls-hist-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px;}
.ls-hist-empty,.ls-hist-loading{font-size:12px;color:var(--text-dim);padding:8px 2px;}
.ls-hist-item{display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:8px;cursor:pointer;border:1px solid transparent;transition:background .1s,border-color .1s;}
.ls-hist-item:hover{background:var(--bg-hover);}
.ls-hist-item.active{background:var(--primary-bg);border-color:var(--primary);}
.ls-hist-status{width:18px;height:18px;flex-shrink:0;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:10.5px;font-weight:700;}
.ls-hist-status.ok{background:var(--green-bg);color:var(--green);}
.ls-hist-status.error{background:rgba(248,81,73,.15);color:var(--red);}
.ls-hist-status.timeout{background:rgba(210,153,34,.18);color:#c9a227;}
.ls-hist-status.running{background:transparent;color:var(--primary);}
.ls-hist-status .layer-spinner{width:11px;height:11px;border-width:2px;}
.ls-hist-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px;}
.ls-hist-line1{display:flex;align-items:baseline;gap:6px;}
.ls-hist-line1 b{font-size:12px;font-weight:600;color:var(--text);}
.ls-hist-time{font-size:10.5px;color:var(--text-dim);margin-left:auto;font-variant-numeric:tabular-nums;}
.ls-hist-line2{font-size:11px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.ls-hist-item.error .ls-hist-line2{color:var(--red);}
.ls-hist-item.timeout .ls-hist-line2{color:#c9a227;}
.ls-hist-elapsed{font-size:10.5px;color:var(--text-muted);flex-shrink:0;font-variant-numeric:tabular-nums;}

/* ---- 中间视口（无限画布）---- */
.ls-viewport{position:relative;flex:1;min-width:0;overflow:hidden;outline:none;cursor:grab;
  background:radial-gradient(circle at 1px 1px, rgba(127,127,127,.28) 1px, transparent 1.5px) 0 0/22px 22px, var(--bg-deep);}
.ls-viewport.panning{cursor:grabbing;}
.ls-viewport.moving{cursor:move;}
.ls-viewport.spacepan,.ls-viewport.spacepan .ls-layer{cursor:grab;}
.ls-viewport.spacepan.panning{cursor:grabbing;}

.ls-world{position:absolute;left:0;top:0;transform-origin:0 0;will-change:transform;}

/* 画板（= 上游画布尺寸）：棋盘格表示透明区 */
.ls-artboard{position:absolute;left:0;top:0;background:
  repeating-conic-gradient(rgba(127,127,127,.25) 0% 25%, transparent 0% 50%) 50%/16px 16px, var(--bg-card);
  box-shadow:0 0 0 1px var(--border-light),0 8px 40px rgba(0,0,0,.45);}
.ls-composite{position:absolute;left:0;top:0;width:100%;height:100%;visibility:hidden;pointer-events:none;}
.ls-artboard.compare .ls-composite{visibility:visible;}
.ls-artboard.compare .ls-layer{visibility:hidden;}

/* 图层对象 */
.ls-layer{position:absolute;display:block;user-select:none;-webkit-user-drag:none;cursor:move;}
.ls-layer:hover{outline:1px dashed rgba(35,134,54,.55);outline-color:color-mix(in srgb,var(--primary) 55%,transparent);outline-offset:0;}

/* 选框（随缩放补偿描边宽度）*/
.ls-selbox{position:absolute;pointer-events:none;border:1.5px solid var(--primary);
  box-shadow:0 0 0 1px rgba(0,0,0,.35), inset 0 0 0 1px rgba(0,0,0,.35);}
.ls-selbox::before,.ls-selbox::after{content:'';position:absolute;background:var(--primary);}
.ls-selbox::before{left:50%;top:-4px;width:1px;height:calc(100% + 8px);margin-left:-0.5px;opacity:.35;}
.ls-selbox::after{top:50%;left:-4px;height:1px;width:calc(100% + 8px);margin-top:-0.5px;opacity:.35;}

/* 空态提示（画布中央）*/
.ls-empty-hint{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);text-align:center;
  color:var(--text-muted);pointer-events:none;padding:36px 48px;border:1.5px dashed var(--border);border-radius:16px;}
.ls-empty-icon{color:var(--primary);opacity:.5;}
.ls-empty-icon svg{width:38px;height:38px;}
.ls-empty-text{font-size:14px;color:var(--text);margin-top:12px;line-height:1.8;}
.ls-empty-text span{font-size:12px;color:var(--text-muted);}

/* 悬浮缩放条 */
.ls-zoombar{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:flex;align-items:center;gap:2px;
  padding:4px;border-radius:10px;background:var(--bg-card);border:1px solid var(--border);box-shadow:0 4px 18px rgba(0,0,0,.35);}
.ls-zbtn{min-width:30px;height:28px;padding:0 8px;border:none;border-radius:7px;background:transparent;color:var(--text);
  font-size:14px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:background .12s,color .12s;}
.ls-zbtn:hover{background:var(--bg-hover);color:var(--primary);}
.ls-zoom-val{font-size:12px;min-width:52px;font-variant-numeric:tabular-nums;}

/* 属性条（选中图层时）*/
.ls-props{position:absolute;top:12px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:10px;max-width:calc(100% - 24px);
  padding:6px 12px;border-radius:10px;background:var(--bg-card);border:1px solid var(--border);box-shadow:0 4px 18px rgba(0,0,0,.35);font-size:12px;}
.ls-props:empty{display:none;}
.ls-props.active{border-color:var(--primary);}
.ls-props-name{font-weight:700;color:var(--text);max-width:180px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.ls-props-op{display:inline-flex;align-items:center;gap:7px;color:var(--text-muted);white-space:nowrap;}
.ls-props-op input[type=range]{width:110px;accent-color:var(--primary);}
.ls-props-op b{color:var(--text);font-weight:600;min-width:34px;font-variant-numeric:tabular-nums;}
.ls-mini-btn{padding:4px 9px;border-radius:7px;border:1px solid var(--border);background:transparent;color:var(--text);
  font-size:11.5px;cursor:pointer;display:inline-flex;align-items:center;gap:3px;transition:border-color .12s,color .12s;white-space:nowrap;}
.ls-mini-btn:hover{border-color:var(--primary);color:var(--primary);}

/* 加载层 */
.ls-loading{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:rgba(0,0,0,.55);backdrop-filter:blur(3px);z-index:50;font-size:13px;color:var(--text);}
.ls-loading .layer-spinner{width:22px;height:22px;border-width:3px;color:var(--primary);}
.ls-loading-text{text-align:center;line-height:1.7;padding:0 20px;}
.ls-loading-hint{color:var(--text-muted);font-size:12px;}
.ls-loading.error .layer-spinner{display:none;}
.ls-retry{margin-top:2px;}

/* ---- 右栏：图层面板 ---- */
.ls-panel{width:264px;flex-shrink:0;display:flex;flex-direction:column;min-height:0;
  background:var(--bg-base);border-left:1px solid var(--border);}
.ls-panel-head{padding:10px 14px 8px;font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;flex-shrink:0;}
.ls-panel-count{margin-left:5px;font-weight:400;letter-spacing:0;}
.ls-panel-list{flex:1;min-height:0;overflow-y:auto;padding:0 8px 8px;display:flex;flex-direction:column;gap:3px;}
.ls-panel-list::-webkit-scrollbar{width:8px;}
.ls-panel-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px;}

.ls-row{display:flex;align-items:center;gap:8px;padding:5px 7px;border-radius:8px;cursor:pointer;border:1px solid transparent;transition:background .1s,border-color .1s;}
.ls-row:hover{background:var(--bg-hover);}
.ls-row.selected{background:var(--primary-bg);border-color:var(--primary);}
.ls-row.hidden{opacity:.42;}
.ls-row-idx{font-size:9.5px;color:var(--text-dim);width:16px;flex-shrink:0;text-align:right;font-variant-numeric:tabular-nums;}
.ls-row-thumb{width:38px;height:38px;flex-shrink:0;border-radius:6px;overflow:hidden;
  background:repeating-conic-gradient(rgba(127,127,127,.22) 0% 25%, transparent 0% 50%) 50%/9px 9px,var(--bg-card);display:flex;align-items:center;justify-content:center;}
.ls-row-thumb img{max-width:100%;max-height:100%;object-fit:contain;display:block;pointer-events:none;}
.ls-row-name{flex:1;min-width:0;font-size:12px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.ls-row-tools{display:none;align-items:center;gap:2px;flex-shrink:0;}
.ls-row:hover .ls-row-tools,.ls-row.selected .ls-row-tools{display:inline-flex;}
.ls-row-btn{width:20px;height:20px;padding:0;border:none;border-radius:5px;background:transparent;color:var(--text-muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;}
.ls-row-btn:hover{background:var(--bg-card);color:var(--primary);}
.ls-row-eye{width:24px;height:24px;flex-shrink:0;padding:0;border:none;border-radius:6px;background:transparent;color:var(--text-muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;}
.ls-row-eye:hover{color:var(--primary);background:var(--bg-card);}
.ls-row.hidden .ls-row-eye{color:var(--primary);}
.ls-panel-tip{padding:9px 14px 12px;font-size:10.5px;line-height:1.7;color:var(--text-dim);flex-shrink:0;border-top:1px solid var(--border);}

/* ===== 状态徽标（历史/状态用）===== */
.layer-spinner{width:10px;height:10px;border:2px solid currentColor;border-top-color:transparent;border-radius:50%;display:inline-block;animation:layerSpin 1s linear infinite;}
@keyframes layerSpin{to{transform:rotate(360deg);}}

/* ===== 窄屏：左右栏改为抽屉 ===== */
@media (max-width:1100px){
  .ls-side{position:absolute;left:0;top:0;bottom:0;z-index:30;transform:translateX(-100%);transition:transform .18s ease;
    box-shadow:6px 0 24px rgba(0,0,0,.35);width:250px;}
  .ls-root.side-open .ls-side{transform:translateX(0);}
  .ls-narrow-toggle{display:inline-flex;}
  .ls-job-state{max-width:180px;}
  .ls-btn{padding:6px 8px;font-size:11.5px;}
  .ls-props-hint{display:none;}
}
@media (max-width:760px){
  .ls-title b{display:none;}
  .ls-btn{padding:5px 7px;}
  .ls-props{top:8px;}
}

/* ===== 文字分层引擎（2026-09-19）：引擎选择 + 可编辑文字清单面板 ===== */
.ls-root{position:relative;}
.ls-engine-seg{flex:1;display:flex;border:1px solid var(--border);border-radius:7px;overflow:hidden;}
.ls-engine-opt{flex:1;padding:6px 2px;border:none;background:var(--bg-deep);color:var(--text-muted);font-size:12px;cursor:pointer;transition:background .15s,color .15s;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;}
.ls-engine-opt+.ls-engine-opt{border-left:1px solid var(--border);}
.ls-engine-opt:hover{color:var(--text);}
.ls-engine-opt.on{background:var(--primary);color:#fff;font-weight:700;}
.ls-textlist{position:absolute;top:54px;right:12px;z-index:60;width:360px;max-width:calc(100vw - 24px);max-height:62vh;display:flex;flex-direction:column;
  background:var(--bg-card);border:1px solid var(--border);border-radius:10px;box-shadow:0 8px 28px rgba(0,0,0,.35);overflow:hidden;}
.ls-textlist-head{display:flex;align-items:center;gap:8px;padding:9px 12px;border-bottom:1px solid var(--border);font-size:12.5px;}
.ls-textlist-hint{color:var(--text-muted);font-size:10.5px;margin-left:auto;}
.ls-textlist-body{overflow:auto;padding:4px 0;}
.ls-textlist-item{display:flex;gap:8px;align-items:baseline;padding:6px 12px;border-bottom:1px dashed var(--border);font-size:12px;}
.ls-textlist-item:last-child{border-bottom:none;}
.ls-textlist-idx{color:var(--text-dim);flex-shrink:0;min-width:18px;text-align:right;}
.ls-textlist-text{color:var(--text);word-break:break-all;}
.ls-textlist-meta{color:var(--text-muted);font-size:10.5px;flex-shrink:0;margin-left:auto;text-align:right;}

/* ===== 历史记录：手动刷新 + 删除（2026-09-19）===== */
.ls-hist-title{display:flex;align-items:center;cursor:pointer;}
.ls-hist-refresh{margin-left:auto;background:none;border:none;color:var(--text-muted);cursor:pointer;padding:2px;display:inline-flex;align-items:center;justify-content:center;}
.ls-hist-refresh:hover{color:var(--primary);}
.ls-hist-del{flex-shrink:0;width:20px;height:20px;border:none;border-radius:6px;background:transparent;color:var(--text-dim);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0;opacity:0;transition:opacity .15s,background .15s,color .15s;}
.ls-hist-item:hover .ls-hist-del,.ls-hist-del:focus{opacity:1;}
.ls-hist-del:hover{background:rgba(243,139,168,.15);color:var(--red);}

/* 文字独立图层（MCP 新包）：每条文字一个框级小画布，挂载定位由 js 内联控制；不可交互（拖拽/框选仅限普通图层） */
.ls-textlayer{pointer-events:none;}
.ls-row-thumb-t{display:inline-flex;align-items:center;justify-content:center;width:100%;height:100%;font-size:10px;font-weight:700;color:var(--text-muted,#a6adc8);background:rgba(148,163,184,.12);border-radius:4px;}