feat(mapcanvas): 田字格2x2布局+拖拽辅助(合法高亮/灰显/吸附)+连接管理面板+zoom transform缩放+连线rAF节流

frontend/src/components/map-canvas/ConnectionManagerDialog.vue

@@ -0,0 +1,166 @@
+<template>
+  <MyDialog :model-value="modelValue" @update:model-value="$emit('update:modelValue', $event)" title="连接管理" :width="780">
+    <!-- 新增连线（非拖拽方式） -->
+    <div class="cm-add-row">
+      <el-select v-model="form.from" placeholder="源目标" filterable style="width:230px;" @change="form.to = ''">
+        <el-option-group v-for="g in groupedOptions" :key="g.label" :label="g.label">
+          <el-option v-for="o in g.items" :key="o.key" :label="o.name" :value="o.key" />
+        </el-option-group>
+      </el-select>
+      <span class="cm-arrow">→</span>
+      <el-select v-model="form.to" placeholder="目标目标" filterable style="width:230px;">
+        <el-option-group v-for="g in groupedOptions" :key="g.label" :label="g.label">
+          <el-option v-for="o in g.items" :key="o.key" :label="o.name" :value="o.key" />
+        </el-option-group>
+      </el-select>
+      <el-select v-model="form.effect" style="width:96px;">
+        <el-option label="正向" value="positive" />
+        <el-option label="负向" value="negative" />
+      </el-select>
+      <el-button type="primary" :disabled="!form.from || !form.to" @click="onAdd">添加连线</el-button>
+    </div>
+
+    <div v-if="connections.length === 0" class="cm-empty">
+      暂无连线，请通过上方表单或画布拖拽（下层→上层）创建
+    </div>
+    <table v-else class="cm-table">
+      <thead>
+        <tr><th>#</th><th>源目标</th><th>方向</th><th>目标目标</th><th>强度</th><th>操作</th></tr>
+      </thead>
+      <tbody>
+        <tr v-for="(conn, idx) in connections" :key="idx">
+          <td class="cm-idx">{{ idx + 1 }}</td>
+          <td :title="conn.from">{{ nodeLabel(conn.from) }}</td>
+          <td class="cm-dir">→</td>
+          <td :title="conn.to">{{ nodeLabel(conn.to) }}</td>
+          <td>
+            <el-tag
+              :type="conn.effect === 'negative' ? 'danger' : 'success'"
+              size="small"
+              style="cursor:pointer;"
+              @click="toggleEffect(idx)"
+              title="点击切换正/负向"
+            >{{ conn.effect === 'negative' ? '负向' : '正向' }} ↻</el-tag>
+          </td>
+          <td>
+            <el-button size="small" type="danger" text @click="$emit('delete-connection', idx)">删除</el-button>
+          </td>
+        </tr>
+      </tbody>
+    </table>
+    <div class="cm-hint">
+      提示：拖拽连线按 BSC 支撑方向（下层→上层 或 同层）自动校验；本面板可维护任意方向连线。
+    </div>
+  </MyDialog>
+</template>
+
+<script setup lang="ts">
+import { ref, computed } from 'vue'
+import MyDialog from '../MyDialog.vue'
+
+const props = defineProps<{
+  modelValue: boolean
+  connections: any[]
+  nodeOptions: { key: string; name: string; layerName: string }[]
+  layerLabels?: Record<string, string>
+}>()
+
+const emit = defineEmits<{
+  (e: 'update:modelValue', v: boolean): void
+  (e: 'add-connection', payload: { from: string; to: string; effect?: string }): void
+  (e: 'delete-connection', idx: number): void
+  (e: 'update-connection', idx: number, patch: any): void
+}>()
+
+const form = ref<{ from: string; to: string; effect: string }>({ from: '', to: '', effect: 'positive' })
+
+/** 按层分组的节点选项 */
+const groupedOptions = computed(() => {
+  const groups: { label: string; items: { key: string; name: string }[] }[] = []
+  const byLayer: Record<string, { key: string; name: string }[]> = {}
+  for (const o of props.nodeOptions) {
+    const ln = o.layerName || '其他'
+    if (!byLayer[ln]) byLayer[ln] = []
+    byLayer[ln].push({ key: o.key, name: o.name })
+  }
+  for (const label of Object.keys(byLayer)) {
+    groups.push({ label, items: byLayer[label] })
+  }
+  return groups
+})
+
+function nodeLabel(key: string): string {
+  const o = props.nodeOptions.find(n => n.key === key)
+  return o ? `${o.layerName} · ${o.name}` : key
+}
+
+function toggleEffect(idx: number) {
+  const conn = props.connections[idx]
+  if (!conn) return
+  emit('update-connection', idx, { effect: conn.effect === 'negative' ? 'positive' : 'negative' })
+}
+
+function onAdd() {
+  if (!form.value.from || !form.value.to) return
+  emit('add-connection', { from: form.value.from, to: form.value.to, effect: form.value.effect })
+  form.value = { from: '', to: '', effect: 'positive' }
+}
+</script>
+
+<style scoped>
+.cm-add-row {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 10px 0 14px;
+  border-bottom: 1px dashed #e4e7ed;
+  margin-bottom: 12px;
+  flex-wrap: wrap;
+}
+.cm-arrow {
+  color: #909399;
+  font-size: 16px;
+  flex-shrink: 0;
+}
+.cm-empty {
+  text-align: center;
+  color: #909399;
+  padding: 32px 0;
+  font-size: 13px;
+}
+.cm-table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 13px;
+}
+.cm-table th {
+  text-align: left;
+  padding: 8px 10px;
+  background: #f5f7fa;
+  color: #606266;
+  font-weight: 600;
+  border-bottom: 1px solid #e4e7ed;
+}
+.cm-table td {
+  padding: 8px 10px;
+  border-bottom: 1px solid #f0f0f0;
+  color: #303133;
+  max-width: 240px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+.cm-table tr:hover td {
+  background: #f8faff;
+}
+.cm-idx { color: #909399; width: 32px; }
+.cm-dir { color: #409eff; text-align: center; width: 36px; }
+.cm-hint {
+  margin-top: 12px;
+  font-size: 12px;
+  color: #909399;
+  background: #f8f9fb;
+  padding: 8px 12px;
+  border-radius: 6px;
+}
+</style>

frontend/src/components/map-canvas/MapCanvasToolbar.vue

@@ -30,6 +30,7 @@
         title="点击节点可聚焦查看其相关因果链，其余自动变淡"
       >🔍 因果链查看{{ chainMode ? '中' : '' }}</el-button>
       <el-button @click="$emit('show-causality')">🔗 因果链推荐</el-button>
+      <el-button @click="$emit('show-connection-manager')" title="以表格方式查看/创建/维护连线">🔗 连接管理</el-button>
       <el-button type="primary" @click="$emit('save-canvas')">保存</el-button>
       <el-button type="success" @click="$emit('publish-map')" v-if="currentMap?.status === 'draft'">发布</el-button>
       <el-button @click="$emit('show-versions')">版本历史</el-button>
@@ -72,6 +73,7 @@ const emit = defineEmits<{
   (e: 'zoom-fit'): void
   (e: 'export-image'): void
   (e: 'show-causality'): void
+  (e: 'show-connection-manager'): void
   (e: 'save-canvas'): void
   (e: 'publish-map'): void
   (e: 'show-versions'): void

frontend/src/components/strategy-map/MapNode.vue

@@ -6,6 +6,8 @@
       'linking-target': isLinkingTarget,
       'drag-over-connect': isDragConnectTarget,
       'drag-over': isDragOver,
+      'link-valid-target': linkEligibility === 'valid',
+      'link-forbidden': linkEligibility === 'forbidden',
       'node-level-red': level === 'red',
       'node-level-yellow': level === 'yellow',
       'node-level-green': level === 'green',
@@ -154,6 +156,8 @@ const props = defineProps<{
   isLinkingTarget?: boolean
   isDragConnectTarget?: boolean
   isDragOver?: boolean
+  /** 拖拽连线目标合法性：valid=合法高亮 / forbidden=反方向灰显不可连 */
+  linkEligibility?: 'valid' | 'forbidden' | null
   iconMap?: Record<string, string>
   kpiNameMap?: Record<string, string>
   allKpis?: any[]
@@ -292,6 +296,22 @@ function getKrProgressText(kr: any): string {
   border-color: #409eff !important; box-shadow: 0 0 0 2px rgba(64,158,255,0.3) !important;
   transform: scale(1.02);
 }
+/* 拖拽连线：合法目标高亮（绿色呼吸） */
+.map-node.link-valid-target {
+  border-color: #67c23a !important;
+  box-shadow: 0 0 0 2px rgba(103,194,58,0.45), 0 0 8px rgba(103,194,58,0.35);
+  animation: link-valid-pulse 1.2s ease-in-out infinite;
+}
+@keyframes link-valid-pulse {
+  0%, 100% { box-shadow: 0 0 0 2px rgba(103,194,58,0.45), 0 0 8px rgba(103,194,58,0.3); }
+  50% { box-shadow: 0 0 0 3px rgba(103,194,58,0.7), 0 0 14px rgba(103,194,58,0.5); }
+}
+/* 拖拽连线：反方向目标灰显不可连 */
+.map-node.link-forbidden {
+  opacity: 0.38;
+  filter: grayscale(0.7);
+  cursor: not-allowed;
+}
 .node-level-red { border-left: 3px solid #f56c6c !important; background: #fef0f0; }
 .node-level-yellow { border-left: 3px solid #e6a23c !important; background: #fdf6ec; }
 .node-level-green { border-left: 3px solid #67c23a !important; background: #f0f9eb; }

frontend/src/components/strategy-map/StrategyLayer.vue

@@ -40,6 +40,7 @@
               :is-linking-source="linkingFromKey === `${layerKey}-${index}`"
               :is-linking-target="!!linkingFromKey && linkingFromKey !== `${layerKey}-${index}`"
               :is-drag-connect-target="dragConnectTarget === `${layerKey}-${index}`"
+              :link-eligibility="linkEligibilityMap?.[`${layerKey}-${index}`] ?? null"
               :icon-map="iconMap"
               :kpi-name-map="kpiNameMap"
               :all-kpis="allKpis"
@@ -89,6 +90,8 @@ const props = defineProps<{
   objectives: any[]
   linkingFromKey?: string | null
   dragConnectTarget?: string | null
+  /** 拖拽连线时的目标合法性：valid=合法高亮 / forbidden=反方向灰显 */
+  linkEligibilityMap?: Record<string, 'valid' | 'forbidden'>
   iconMap?: Record<string, string>
   kpiNameMap?: Record<string, string>
   allKpis?: any[]

frontend/src/components/strategy/ConnectionLines.vue

@@ -152,6 +152,8 @@ const props = defineProps({
   containerKey: { type: Number, default: 0 },
   /** 视角方向：cascade(级联,上层→下层) / causal(因果,下层→上层) */
   viewDirection: { type: String, default: 'cascade' },
+  /** 田字格 2×2 模式：跨层箭头只画同列上下层对（财务↔流程、客户↔学习） */
+  gridMode: { type: Boolean, default: false },
   /** 因果链查看模式是否开启 */
   chainMode: { type: Boolean, default: false },
   /** 因果链查看模式下聚焦的节点 key（点击节点触发） */
@@ -285,7 +287,7 @@ function editLabel(idx) {
   }).catch(() => { /* 取消 */ })
 }
 
-// ── 跨层箭头：贝塞尔曲线 ──
+// ── 跨层箭头：贝塞尔曲线（田字格模式只画同列上下层对） ──
 function calcCrossLayerLines() {
   const lines = []
   const keys = props.layerKeys
@@ -293,16 +295,22 @@ function calcCrossLayerLines() {
   const svg = svgRef.value
   if (!svg) return
   const svgRect = svg.getBoundingClientRect()
-  for (let i = 0; i < keys.length - 1; i++) {
-    const upperEl = props.layerRefs[keys[i]]
-    const lowerEl = props.layerRefs[keys[i + 1]]
-    if (!upperEl || !lowerEl) continue
+  // 田字格 2×2：财务(0)↔流程(2)、客户(1)↔学习(3) 同列上下；纵向泳道：相邻层全画
+  const pairs = props.gridMode
+    ? [[0, 2], [1, 3]]
+    : keys.map((_, i) => [i, i + 1]).slice(0, -1)
+  for (const [ai, bi] of pairs) {
+    const aEl = props.layerRefs[keys[ai]]
+    const bEl = props.layerRefs[keys[bi]]
+    if (!aEl || !bEl) continue
 
-    const ur = upperEl.getBoundingClientRect()
-    const lr = lowerEl.getBoundingClientRect()
-    const cx = (ur.left + ur.width / 2 - svgRect.left + lr.left + lr.width / 2 - svgRect.left) / 2
-    const y1 = (isCausal ? lr.top : ur.bottom) - svgRect.top
-    const y2 = (isCausal ? ur.bottom : lr.top) - svgRect.top
+    const ar = aEl.getBoundingClientRect()
+    const br = bEl.getBoundingClientRect()
+    const upper = ar.top <= br.top ? ar : br
+    const lower = ar.top <= br.top ? br : ar
+    const cx = (upper.left + upper.width / 2 - svgRect.left + lower.left + lower.width / 2 - svgRect.left) / 2
+    const y1 = (isCausal ? lower.top : upper.bottom) - svgRect.top
+    const y2 = (isCausal ? upper.bottom : lower.top) - svgRect.top
     const bend = 28 // 曲线横向弯曲幅度
     // 三次贝塞尔：垂直方向柔和 S 曲线
     const path = `M ${cx} ${y1} C ${cx + bend} ${y1}, ${cx + bend} ${y2}, ${cx} ${y2}`
@@ -311,26 +319,41 @@ function calcCrossLayerLines() {
   crossLayerLines.value = lines
 }
 
-// ── 同层用户连线：贝塞尔曲线 ──
+// ── 同层用户连线：贝塞尔曲线（节点坐标缓存：同一节点只读一次 rect） ──
 function calcLayerConnections() {
   const result = []
   const svg = svgRef.value
   if (!svg) return
   const svgRect = svg.getBoundingClientRect()
 
-  for (const conn of props.connections) {
-    const fromEl = props.nodeRefs[conn.from]
-    const toEl = props.nodeRefs[conn.to]
-    if (!fromEl || !toEl) continue
+  // 节点坐标缓存（相对 svg）：同一节点被多条连线引用时只 getBoundingClientRect 一次
+  const rectCache = {}
+  const getRect = (key) => {
+    if (rectCache[key]) return rectCache[key]
+    const el = props.nodeRefs[key]
+    if (!el) return null
+    const r = el.getBoundingClientRect()
+    rectCache[key] = {
+      left: r.left - svgRect.left,
+      top: r.top - svgRect.top,
+      right: r.right - svgRect.left,
+      bottom: r.bottom - svgRect.top,
+      width: r.width,
+      height: r.height,
+    }
+    return rectCache[key]
+  }
 
-    const fr = fromEl.getBoundingClientRect()
-    const tr = toEl.getBoundingClientRect()
+  for (const conn of props.connections) {
+    const fr = getRect(conn.from)
+    const tr = getRect(conn.to)
+    if (!fr || !tr) continue
 
     // 源节点右侧中点 → 目标节点左侧中点
-    const x1 = fr.right - svgRect.left
-    const y1 = fr.top + fr.height / 2 - svgRect.top
-    const x2 = tr.left - svgRect.left
-    const y2 = tr.top + tr.height / 2 - svgRect.top
+    const x1 = fr.right
+    const y1 = fr.top + fr.height / 2
+    const x2 = tr.left
+    const y2 = tr.top + tr.height / 2
 
     // 贝塞尔曲线控制点（水平拖拽，曲线柔和）
     const dx = Math.max(Math.abs(x2 - x1) * 0.5, 40)
@@ -367,9 +390,21 @@ function recalcAll() {
   calcLayerConnections()
 }
 
-watch(() => props.containerKey, () => recalcAll())
-watch(() => props.viewDirection, () => recalcAll())
-watch(() => props.connections, () => recalcAll(), { deep: true })
+// ── 重绘节流：rAF 合并连续触发（拖拽/缩放/滚动时每帧只重算一次） ──
+let rafPending = false
+function scheduleRecalc() {
+  if (rafPending) return
+  rafPending = true
+  requestAnimationFrame(() => {
+    rafPending = false
+    recalcAll()
+  })
+}
+
+watch(() => props.containerKey, () => scheduleRecalc())
+watch(() => props.viewDirection, () => scheduleRecalc())
+watch(() => props.gridMode, () => scheduleRecalc())
+watch(() => props.connections, () => scheduleRecalc(), { deep: true })
 
 // 暴露给父组件调用
 defineExpose({ recalcAll })

frontend/src/views/MapCanvas.vue

@@ -16,6 +16,7 @@
       @zoom-fit="zoomFit"
       @export-image="exportImage"
       @show-causality="showCausalityRecommendations"
+      @show-connection-manager="showConnManager = true"
       @save-canvas="saveCanvas(false)"
       @publish-map="publishMap"
       @show-versions="showVersions = true; loadVersions()"
@@ -50,9 +51,10 @@
       </el-empty>
     </div>
 
-    <!-- 画布主体（纵向泳道布局，CSS zoom缩放） -->
-    <div class="canvas-scroll-wrap" ref="scrollWrapRef" :style="{ zoom: zoomLevel }">
-      <div class="canvas-body" ref="bodyRef">
+    <!-- 画布主体（田字格2×2布局，transform: scale 缩放） -->
+    <div class="canvas-scroll-wrap" ref="scrollWrapRef">
+      <div class="canvas-zoom-wrap" :style="{ width: zoomWrapWidth, height: zoomWrapHeight }">
+      <div class="canvas-body" :class="{ 'grid-mode': gridMode }" ref="bodyRef" :style="bodyZoomStyle">
         <!-- 四层泳道（纵向排列，固定顺序：财务→客户→流程→学习） -->
         <div
           v-for="(cfg, idx) in orderedLayerConfigs"
@@ -70,6 +72,7 @@
             :objectives="getLayerNodes(cfg.key)"
             :linking-from-key="linkingFrom?.key ?? null"
             :drag-connect-target="dragConnectTarget"
+            :link-eligibility-map="linkEligibilityMap"
             :icon-map="iconMap"
             :kpi-name-map="kpiNameMap"
             :all-kpis="allKpis"
@@ -89,8 +92,8 @@
             @add-kr="(p: any) => onAddKr(p.dimKey, p.idx, p.obj)"
           />
 
-          <!-- 跨层箭头指示器（根据视角切换方向） -->
-          <div v-if="idx < orderedLayerConfigs.length - 1" class="cross-layer-arrow">
+          <!-- 跨层箭头指示器（田字格模式下由连线层绘制同列箭头，此处隐藏） -->
+          <div v-if="!gridMode && idx < orderedLayerConfigs.length - 1" class="cross-layer-arrow">
             <svg width="24" height="32" viewBox="0 0 24 32">
               <line x1="12" y1="0" x2="12" y2="24" stroke="#909399" stroke-width="2" stroke-dasharray="4,3" />
               <polygon v-if="viewDirection === 'cascade'" points="4,22 12,30 20,22" fill="#909399" />
@@ -99,6 +102,7 @@
           </div>
         </div>
       </div><!-- end canvas-body -->
+      </div><!-- end canvas-zoom-wrap -->
     </div><!-- end canvas-scroll-wrap -->
 
     <!-- SVG 连线层（覆盖整个画布，绘制跨层+同层箭头） -->
@@ -111,6 +115,7 @@
       :temp-line="tempLine"
       :container-key="recalcTrigger"
       :view-direction="viewDirection"
+      :grid-mode="gridMode"
       :chain-mode="chainMode"
       :chain-focus-key="chainFocusKey"
       @select-connection="onSelectConnection"
@@ -151,6 +156,17 @@
       @edit-kpi-obj="editKpiDetailObj"
       @quick-create-plan="quickCreatePlan"
     />
+
+    <!-- 连接管理面板（非拖拽方式创建/维护连线） -->
+    <ConnectionManagerDialog
+      v-model="showConnManager"
+      :connections="connections"
+      :node-options="connectionNodeOptions"
+      :layer-labels="layerLabelMap"
+      @add-connection="onManagerAddConnection"
+      @delete-connection="onManagerDeleteConnection"
+      @update-connection="onManagerUpdateConnection"
+    />
   </div>
   <!-- P1-3: 关联知识点 -->
   <div style="margin-top:12px;">
@@ -170,6 +186,7 @@ import StrategyLayer from "../components/strategy-map/StrategyLayer.vue"
 import ConnectionLines from "../components/strategy/ConnectionLines.vue"
 import MapCanvasToolbar from "../components/map-canvas/MapCanvasToolbar.vue"
 import MapCanvasDialogs from "../components/map-canvas/MapCanvasDialogs.vue"
+import ConnectionManagerDialog from "../components/map-canvas/ConnectionManagerDialog.vue"
 import html2canvas from "html2canvas"
 
 // ── 四层泳道配置 ──
@@ -229,10 +246,46 @@ function onUpdateConnection(idx: number, patch: any) {
   saveConnections()
 }
 
-// 缩放
+// 缩放（transform: scale + 滚动容器宽度补偿）
 const zoomLevel = ref(1)
 const scrollWrapRef = ref<HTMLElement | null>(null)
 
+/** 田字格 2×2 模式（滚动容器宽度 >= 900px 时启用；<900 降级纵向） */
+const gridMode = ref(true)
+
+/** canvas-body 缩放样式：transform 只影响视觉（GPU合成），不触发整页重排 */
+const bodyZoomStyle = computed(() => ({
+  transform: `scale(${zoomLevel.value})`,
+  transformOrigin: 'top left',
+  transition: 'transform 0.18s ease',
+}))
+
+/** 缩放包裹层宽度：body 布局宽度 = 容器宽 / zoom，缩放后视觉宽度恒等于容器宽 */
+const zoomWrapWidth = computed(() => `calc(100% / ${zoomLevel.value})`)
+
+/** 缩放包裹层高度：动态补偿，使滚动区域恰好覆盖缩放后的视觉内容 */
+const zoomWrapHeight = ref('auto')
+
+/** 更新缩放包裹层高度（zoom/内容/窗口变化后调用） */
+function updateZoomWrapHeight() {
+  nextTick(() => {
+    const body = bodyRef.value
+    if (!body) return
+    const h = body.scrollHeight
+    zoomWrapHeight.value = h > 0 ? `${Math.round(h * zoomLevel.value) + 24}px` : 'auto'
+  })
+}
+
+/** 根据滚动容器实际宽度判断是否启用田字格（>1200 及 800-1200 用田字格，<800 降级纵向；以 900 为阈值保底） */
+function updateGridMode() {
+  const w = scrollWrapRef.value?.clientWidth ?? window.innerWidth
+  gridMode.value = w >= 900
+  nextTick(() => {
+    recalcTrigger.value++
+    connectionLinesRef.value?.recalcAll()
+  })
+}
+
 // 节点状态（红黄绿灯）
 const objectiveLevels = reactive<Record<string, string>>({})
 
@@ -373,18 +426,32 @@ function onSelectMap(id: number) {
 }
 
 // ── 缩放 ──
-function zoomIn() { zoomLevel.value = Math.min(1.5, Math.round((zoomLevel.value + 0.1) * 10) / 10) }
-function zoomOut() { zoomLevel.value = Math.max(0.5, Math.round((zoomLevel.value - 0.1) * 10) / 10) }
-function zoomReset() { zoomLevel.value = 1 }
+function zoomIn() {
+  zoomLevel.value = Math.min(1.5, Math.round((zoomLevel.value + 0.1) * 10) / 10)
+  updateZoomWrapHeight()
+}
+function zoomOut() {
+  zoomLevel.value = Math.max(0.5, Math.round((zoomLevel.value - 0.1) * 10) / 10)
+  updateZoomWrapHeight()
+}
+function zoomReset() {
+  zoomLevel.value = 1
+  updateZoomWrapHeight()
+}
 function zoomFit() {
-  // 自适应缩放：大致按视口高度计算
-  if (!scrollWrapRef.value) return
+  // 自适应缩放：按画布视觉高度与视口高度比计算
+  if (!scrollWrapRef.value || !bodyRef.value) return
   const wrapH = scrollWrapRef.value.clientHeight
-  const contentH = scrollWrapRef.value.scrollHeight
+  const contentH = bodyRef.value.scrollHeight * zoomLevel.value
   if (contentH > 0 && wrapH > 0) {
     zoomLevel.value = Math.max(0.5, Math.min(1.5, Math.round((wrapH / contentH) * 10) / 10))
   }
+  updateZoomWrapHeight()
 }
+watch(zoomLevel, () => {
+  updateZoomWrapHeight()
+  nextTick(() => connectionLinesRef.value?.recalcAll())
+})
 
 // ── 画布加载 ──
 function loadCanvas() {
@@ -422,6 +489,8 @@ function loadCanvas() {
     loading.value = false
     nextTick(() => {
       triggerRecalc()
+      updateGridMode()
+      updateZoomWrapHeight()
       loadObjectiveLevels()
     })
   }).catch(() => {
@@ -516,32 +585,87 @@ function goKPI(kpiCode: string) {
   window.location.href = found ? '/kpis/' + found.id : '/kpis'
 }
 
-// ── 拖拽连线的鼠标跟踪 ──
+// ── 拖拽连线的鼠标跟踪（增强：实时高亮 + BSC方向合法性 + 吸附） ──
+/** 获取节点 key 对应的层顺序 index（finance=0 … learning=3，越大越下层） */
+function layerIndexOf(key: string): number {
+  const dim = key.split('-')[0]
+  const idx = LAYER_KEYS.indexOf(dim)
+  return idx >= 0 ? idx : -1
+}
+
+/** 拖起时的合法目标映射：BSC 支撑方向（下层→上层 或 同层）为 valid，反方向 forbidden（灰显） */
+const linkEligibilityMap = computed<Record<string, 'valid' | 'forbidden'>>(() => {
+  const map: Record<string, 'valid' | 'forbidden'> = {}
+  if (!linkingFrom.value) return map
+  const srcIdx = layerIndexOf(linkingFrom.value.key)
+  if (srcIdx < 0) return map
+  for (const key of Object.keys(nodeRefs)) {
+    if (key === linkingFrom.value.key) continue
+    const tIdx = layerIndexOf(key)
+    map[key] = tIdx >= 0 && tIdx <= srcIdx ? 'valid' : 'forbidden'
+  }
+  return map
+})
+
 function onLinkDragStart(e: MouseEvent, dimKey: string, oi: number, obj: any) {
   const startX = e.clientX
   const startY = e.clientY
   startLink(dimKey, oi, obj)
+  const onMove = (mv: MouseEvent) => {
+    // 实时高亮 hover 节点（合法/非法样式由 linkEligibilityMap 决定）
+    let hoverKey: string | null = null
+    for (const key of Object.keys(nodeRefs)) {
+      if (key === linkingFrom.value?.key) continue
+      const el = nodeRefs[key]
+      if (!el) continue
+      const rect = el.getBoundingClientRect()
+      if (mv.clientX >= rect.left && mv.clientX <= rect.right &&
+          mv.clientY >= rect.top && mv.clientY <= rect.bottom) {
+        hoverKey = key; break
+      }
+    }
+    dragConnectTarget.value = hoverKey
+  }
   const onUp = (up: MouseEvent) => {
     document.removeEventListener('mouseup', onUp)
+    document.removeEventListener('mousemove', onMove)
     const dist = Math.hypot(up.clientX - startX, up.clientY - startY)
     if (dist >= 5 && linkingFrom.value) {
       let targetKey: string | null = null
-      for (const key of Object.keys(nodeRefs)) {
-        if (key === linkingFrom.value.key) continue
-        const el = nodeRefs[key]
-        if (!el) continue
-        const rect = el.getBoundingClientRect()
-        if (up.clientX >= rect.left && up.clientX <= rect.right &&
-            up.clientY >= rect.top && up.clientY <= rect.bottom) {
-          targetKey = key; break
+      // 1) 精确命中 hover 节点
+      if (dragConnectTarget.value) {
+        targetKey = dragConnectTarget.value
+      } else {
+        // 2) 吸附：最近节点中心距离 < 48px 自动贴合
+        let best: string | null = null
+        let bestDist = 48
+        for (const key of Object.keys(nodeRefs)) {
+          if (key === linkingFrom.value.key) continue
+          const el = nodeRefs[key]
+          if (!el) continue
+          const rect = el.getBoundingClientRect()
+          const cx = rect.left + rect.width / 2
+          const cy = rect.top + rect.height / 2
+          const d = Math.hypot(up.clientX - cx, up.clientY - cy)
+          if (d < bestDist) { bestDist = d; best = key }
         }
+        targetKey = best
       }
       if (targetKey) {
+        // BSC 方向合法性：下层→上层 或 同层；反方向拒绝（灰显）
+        const srcIdx = layerIndexOf(linkingFrom.value.key)
+        const tIdx = layerIndexOf(targetKey)
+        if (srcIdx >= 0 && tIdx >= 0 && tIdx > srcIdx) {
+          ElMessage.warning('因果方向应为「下层支撑上层」（如 学习层→流程层），已取消连线')
+          cancelLink()
+          dragConnectTarget.value = null
+          return
+        }
         const parts = targetKey.split('-')
         const tDim = parts[0]
-        const tIdx = parseInt(parts[1])
+        const tIdxNum = parseInt(parts[1])
         const dim = dimensions.find((d: any) => d.key === tDim)
-        if (dim && dim.objectives[tIdx]) {
+        if (dim && dim.objectives[tIdxNum]) {
           completeConnection(linkingFrom.value.key, targetKey)
         }
       }
@@ -550,6 +674,65 @@ function onLinkDragStart(e: MouseEvent, dimKey: string, oi: number, obj: any) {
     dragConnectTarget.value = null
   }
   document.addEventListener('mouseup', onUp)
+  document.addEventListener('mousemove', onMove)
+}
+
+// ── 连接管理面板（非拖拽方式维护连线） ──
+const showConnManager = ref(false)
+const layerLabelMap = computed<Record<string, string>>(() => {
+  const m: Record<string, string> = {}
+  for (const cfg of orderedLayerConfigs) m[cfg.key] = cfg.label
+  return m
+})
+const connectionNodeOptions = computed(() => {
+  const opts: { key: string; name: string; layerName: string }[] = []
+  for (const dim of dimensions) {
+    const layerName = layerLabelMap.value[dim.key] || dim.key
+    ;(dim.objectives || []).forEach((obj: any, oi: number) => {
+      opts.push({ key: `${dim.key}-${oi}`, name: obj.name || `目标${oi + 1}`, layerName })
+    })
+  }
+  return opts
+})
+function connLabel(key: string): string {
+  const o = connectionNodeOptions.value.find((n: any) => n.key === key)
+  return o ? `${o.layerName} · ${o.name}` : key
+}
+async function onManagerAddConnection(payload: { from: string; to: string; effect?: string }) {
+  if (!selectedMap.value) return
+  if (payload.from === payload.to) { ElMessage.warning('源目标与目标目标不能相同'); return }
+  if (connections.value.some((c: any) => c.from === payload.from && c.to === payload.to)) {
+    ElMessage.warning('已存在相同连线'); return
+  }
+  try {
+    await api.post(`/maps/${selectedMap.value}/connections`, { from: payload.from, to: payload.to })
+    connections.value.push({ from: payload.from, to: payload.to, style: 'solid', effect: payload.effect || 'positive', label: '' })
+    markDirty()
+    ElMessage.success('连线已添加')
+    nextTick(() => { triggerRecalc(); saveConnections() })
+  } catch (e: any) {
+    if (e?.response?.status === 400) {
+      ElMessage.warning(e?.response?.data?.detail || '连线失败')
+    } else {
+      connections.value.push({ from: payload.from, to: payload.to, style: 'solid', effect: payload.effect || 'positive', label: '' })
+      markDirty()
+      ElMessage.success('连线已添加（本地）')
+      nextTick(triggerRecalc)
+    }
+  }
+}
+function onManagerDeleteConnection(idx: number) {
+  const conn = connections.value[idx]
+  if (!conn) return
+  api.delete(`/maps/${selectedMap.value}/connections`, { data: { from: conn.from, to: conn.to } })
+    .then(() => { connections.value.splice(idx, 1); nextTick(triggerRecalc) })
+    .catch(() => { connections.value.splice(idx, 1); nextTick(triggerRecalc) })
+}
+function onManagerUpdateConnection(idx: number, patch: any) {
+  if (!connections.value[idx]) return
+  Object.assign(connections.value[idx], patch)
+  markDirty()
+  saveConnections()
 }
 
 function onSelectConnection(idx: number) {
@@ -977,10 +1160,17 @@ function goAlignment() {
   window.location.href = url
 }
 
-/** 导出画布为PNG图片 */
+/** 导出画布为PNG图片（transform缩放下截图不完整：临时回100%导出） */
 async function exportImage() {
   const el = document.querySelector('.canvas-scroll-wrap') as HTMLElement
   if (!el) { ElMessage.warning('画布尚未加载'); return }
+  const prevZoom = zoomLevel.value
+  if (prevZoom !== 1) {
+    zoomLevel.value = 1
+    updateZoomWrapHeight()
+    await nextTick()
+    await new Promise(r => setTimeout(r, 250))
+  }
   try {
     const canvas = await html2canvas(el, {
       useCORS: true,
@@ -995,6 +1185,11 @@ async function exportImage() {
   } catch (e) {
     console.error('exportImage error:', e)
     ElMessage.error('导出失败')
+  } finally {
+    if (prevZoom !== 1) {
+      zoomLevel.value = prevZoom
+      updateZoomWrapHeight()
+    }
   }
 }
 
@@ -1036,6 +1231,21 @@ async function applyAllCausality() {
   loadCanvas()
 }
 
+// 滚动触发连线重算（rAF节流，避免滚动/拖拽时卡顿）
+let scrollRaf = 0
+function onCanvasScroll() {
+  if (scrollRaf) return
+  scrollRaf = requestAnimationFrame(() => {
+    scrollRaf = 0
+    triggerRecalc()
+  })
+}
+function onWindowResize() {
+  updateGridMode()
+  updateZoomWrapHeight()
+  triggerRecalc()
+}
+
 onMounted(async () => {
   const r: any = await mapApi.list()
   maps.value = r.data || []
@@ -1055,11 +1265,17 @@ onMounted(async () => {
   autoSaveTimer = setInterval(() => {
     if (currentMap.value?.status === 'draft') saveCanvas(true)
   }, 30000)
-  window.addEventListener('resize', triggerRecalc)
+  nextTick(() => {
+    updateGridMode()
+    updateZoomWrapHeight()
+  })
+  scrollWrapRef.value?.addEventListener('scroll', onCanvasScroll, { passive: true })
+  window.addEventListener('resize', onWindowResize)
 })
 
 onUnmounted(() => {
-  window.removeEventListener('resize', triggerRecalc)
+  scrollWrapRef.value?.removeEventListener('scroll', onCanvasScroll)
+  window.removeEventListener('resize', onWindowResize)
   if (saveTimer) clearTimeout(saveTimer)
   if (autoSaveTimer) clearInterval(autoSaveTimer)
 })
@@ -1093,10 +1309,43 @@ onUnmounted(() => {
   position: relative; width: 100%;
 }
 
+/* transform 缩放的布局补偿层：宽度 = 容器/zoom（视觉宽度恒等于容器宽），高度由 JS 动态设置 */
+.canvas-zoom-wrap {
+  position: relative;
+  min-width: 100%;
+}
+
 .canvas-body {
   display: flex; flex-direction: column; gap: 0;
   position: relative; isolation: isolate;
   width: 100%; padding: 8px 0;
+  will-change: transform;
+}
+
+/* 田字格 2×2 布局：财务/客户 上排，流程/学习 下排（grid 自动流序，保留 BSC 顺序） */
+.canvas-body.grid-mode {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  grid-auto-rows: auto;
+  gap: 10px;
+  align-items: stretch;
+}
+
+/* 田字格下每层泳道等宽、行内等高 */
+.canvas-body.grid-mode .layer-swimlane-wrapper {
+  margin-bottom: 0;
+  min-width: 0;
+}
+
+/* 响应式降级：视口 <800px 时强制纵向（JS gridMode 兜底） */
+@media (max-width: 800px) {
+  .canvas-body.grid-mode {
+    display: flex;
+    flex-direction: column;
+  }
+  .canvas-body.grid-mode .layer-swimlane-wrapper {
+    margin-bottom: 4px;
+  }
 }
 
 /* ── 泳道外层包装 ── */