diff --git a/backend/src/api/approval.js b/backend/src/api/approval.js
index 872dd89..27825e9 100644
--- a/backend/src/api/approval.js
+++ b/backend/src/api/approval.js
@@ -52,3 +52,8 @@ export function getApprovalFlowPick(params) {
     params,
   });
 }
+
+// 业务侧发起前拉可用流（按当前用户部门过滤）
+export function getAvailableFlows(params) {
+  return request({ url: '/backend/approval/flow/available', method: 'get', params });
+}
diff --git a/backend/src/components/approval/FlowCanvas.vue b/backend/src/components/approval/FlowCanvas.vue
index cec2b43..a69c774 100644
--- a/backend/src/components/approval/FlowCanvas.vue
+++ b/backend/src/components/approval/FlowCanvas.vue
@@ -3,19 +3,29 @@
     <!-- 左侧节点面板 -->
     <div class="palette">
       <div class="palette-title">节点面板</div>
-      <div
-        v-for="p in palette"
-        :key="p.type"
-        class="palette-item"
-        :class="'pal-' + p.cls"
-        draggable="true"
-        @dragstart="onDragStart($event, p)"
-      >
-        <el-icon class="pal-icon"><component :is="p.icon" /></el-icon>
-        <span>{{ p.label }}</span>
+      <div class="palette-list">
+        <div
+          v-for="p in palette"
+          :key="p.type"
+          class="palette-item"
+          :class="'pal-' + p.cls"
+          draggable="true"
+          :title="'点击或拖拽添加「' + p.label + '」'"
+          @dragstart="onDragStart($event, p)"
+          @dragend="onDragEnd"
+          @click="onPaletteAdd(p)"
+        >
+          <span class="pal-shape-wrap">
+            <span class="pal-shape" :class="'shape-' + p.cls"></span>
+          </span>
+          <div class="pal-info">
+            <div class="pal-label">{{ p.label }}</div>
+            <div class="pal-desc">{{ p.desc }}</div>
+          </div>
+        </div>
       </div>
       <div class="palette-tip">
-        拖入画布添加节点；从节点右侧圆点拖到目标节点连线；双击节点配置；点击连线设置分支条件。
+        点击或拖拽即可添加节点；<br />从右侧小圆点拖到目标节点连线；<br />双击节点配置 · 点击连线设条件。
       </div>
     </div>
 
@@ -31,7 +41,33 @@
         @edge-click="onEdgeClick"
       >
         <template #node-flow="nodeProps">
-          <div class="fn" :class="'fn-' + nodeProps.data.cls">
+          <!-- 判断节点：菱形 -->
+          <div v-if="nodeProps.data.cls === 'decision'" class="fn-diamond">
+            <Handle type="target" :position="Position.Left" />
+            <div class="fn-diamond-shape"></div>
+            <div class="fn-diamond-label">{{ nodeProps.data.name || '判断' }}</div>
+            <Handle type="source" :position="Position.Right" />
+          </div>
+          <!-- 开始 / 结束：胶囊 -->
+          <div
+            v-else-if="nodeProps.data.cls === 'start' || nodeProps.data.cls === 'end'"
+            class="fn-pill"
+            :class="'fn-pill-' + nodeProps.data.cls"
+          >
+            <Handle type="target" :position="Position.Left" />
+            <el-icon class="fn-pill-icon"><component :is="nodeProps.data.cls === 'start' ? VideoPlay : SwitchButton" /></el-icon>
+            <span>{{ nodeProps.data.name || (nodeProps.data.cls === 'start' ? '开始' : '结束') }}</span>
+            <Handle type="source" :position="Position.Right" />
+          </div>
+          <!-- 通知节点：圆形 -->
+          <div v-else-if="nodeProps.data.cls === 'notify'" class="fn-circle fn-circle-notify">
+            <Handle type="target" :position="Position.Left" />
+            <el-icon class="fn-circle-icon"><Bell /></el-icon>
+            <div class="fn-circle-label">{{ nodeProps.data.name || '通知' }}</div>
+            <Handle type="source" :position="Position.Right" />
+          </div>
+          <!-- 审批节点：矩形卡片 -->
+          <div v-else class="fn" :class="'fn-' + nodeProps.data.cls">
             <Handle type="target" :position="Position.Left" />
             <div class="fn-badge">{{ typeShort(nodeProps.data.nodeType) }}</div>
             <div class="fn-title">{{ nodeProps.data.name || '未命名' }}</div>
@@ -105,8 +141,26 @@
           </el-form-item>
         </template>
         <el-form-item v-else-if="nodeForm.nodeType === 4" label=" ">
-          <span class="hint">条件网关：拖出多条连线，点击连线分别填写分支条件（留空为默认分支）。</span>
+          <span class="hint">判断节点：拖出多条连线，点击连线分别填写分支条件（留空为默认分支）。运行期按条件命中其中一条分支。</span>
         </el-form-item>
+        <template v-if="nodeForm.nodeType === 5">
+          <el-form-item label="通知类型">
+            <el-radio-group v-model="nodeForm.approverType" @change="onApproverTypeChange">
+              <el-radio v-for="t in approverTypes" :key="t.value" :value="t.value">{{ t.label }}</el-radio>
+            </el-radio-group>
+          </el-form-item>
+          <el-form-item v-if="currentApproverMeta && currentApproverMeta.needsSelection" :label="currentApproverMeta.selectLabel" required>
+            <el-select v-model="nodeForm.approverIds" multiple filterable style="width: 100%" :placeholder="'选择' + currentApproverMeta.selectLabel + '（可多选）'">
+              <el-option v-for="opt in currentPool" :key="opt.id" :label="opt.name" :value="opt.id" />
+            </el-select>
+          </el-form-item>
+          <el-form-item v-else label=" ">
+            <span class="hint">该类型运行期自动定位通知对象，无需指定</span>
+          </el-form-item>
+          <el-form-item label=" ">
+            <span class="hint">通知节点不阻塞流程，仅发送消息给指定人员，流程自动继续往下走。</span>
+          </el-form-item>
+        </template>
       </el-form>
       <template #footer>
         <el-button type="danger" plain :disabled="!editingNodeId" @click="removeCurrentNode">删除节点</el-button>
@@ -123,7 +177,7 @@
           <el-input v-model="edgeForm.condition" placeholder="如 amount>5000 且 dept=='研发' ；留空为默认分支" />
         </el-form-item>
         <el-form-item label=" ">
-          <span class="hint">支持 &gt; &gt;= &lt; &lt;= == != 与 &amp;&amp; / ||。条件仅在“条件网关”的出边上生效。</span>
+          <span class="hint">支持 &gt; &gt;= &lt; &lt;= == != 与 &amp;&amp; / ||。条件仅在“判断节点”的出边上生效。</span>
         </el-form-item>
       </el-form>
       <template #footer>
@@ -139,7 +193,7 @@
 <script setup lang="ts">
 import { ref, reactive, computed, watch, nextTick } from 'vue'
 import { ElMessage } from 'element-plus'
-import { VideoPlay, User, Share, SwitchButton, QuestionFilled } from '@element-plus/icons-vue'
+import { VideoPlay, User, Share, SwitchButton, QuestionFilled, Bell } from '@element-plus/icons-vue'
 import { VueFlow, Handle, Position, MarkerType, useVueFlow } from '@vue-flow/core'
 import { Background } from '@vue-flow/background'
 import { Controls } from '@vue-flow/controls'
@@ -164,20 +218,21 @@ const { screenToFlowCoordinate, onConnect } = useVueFlow()
 let keySeq = 1
 const nextKey = () => `n${Date.now().toString(36)}${(keySeq++).toString(36)}`
 
-const NODE_TYPE = { START: 1, APPROVAL: 2, END: 3, CONDITION: 4 }
+const NODE_TYPE = { START: 1, APPROVAL: 2, END: 3, DECISION: 4, NOTIFY: 5 }
 
 const palette = [
-  { type: NODE_TYPE.START, cls: 'start', label: '开始', icon: VideoPlay },
-  { type: NODE_TYPE.APPROVAL, cls: 'approval', label: '审批节点', icon: User },
-  { type: NODE_TYPE.CONDITION, cls: 'condition', label: '条件网关', icon: Share },
-  { type: NODE_TYPE.END, cls: 'end', label: '结束', icon: SwitchButton },
+  { type: NODE_TYPE.START, cls: 'start', label: '开始', desc: '流程唯一入口', icon: VideoPlay },
+  { type: NODE_TYPE.APPROVAL, cls: 'approval', label: '审批节点', desc: '指定审批人处理', icon: User },
+  { type: NODE_TYPE.DECISION, cls: 'decision', label: '判断节点', desc: '按条件分支路由', icon: Share },
+  { type: NODE_TYPE.NOTIFY, cls: 'notify', label: '通知节点', desc: '通知不阻塞流程', icon: Bell },
+  { type: NODE_TYPE.END, cls: 'end', label: '结束', desc: '流程出口', icon: SwitchButton },
 ]
 
 const clsOf = (t: number) =>
-  t === NODE_TYPE.START ? 'start' : t === NODE_TYPE.END ? 'end' : t === NODE_TYPE.CONDITION ? 'condition' : 'approval'
+  t === NODE_TYPE.START ? 'start' : t === NODE_TYPE.END ? 'end' : t === NODE_TYPE.DECISION ? 'decision' : t === NODE_TYPE.NOTIFY ? 'notify' : 'approval'
 
 const typeShort = (t: number) =>
-  t === NODE_TYPE.START ? '开始' : t === NODE_TYPE.END ? '结束' : t === NODE_TYPE.CONDITION ? '条件' : '审批'
+  t === NODE_TYPE.START ? '开始' : t === NODE_TYPE.END ? '结束' : t === NODE_TYPE.DECISION ? '判断' : t === NODE_TYPE.NOTIFY ? '通知' : '审批'
 
 const approverTypeLabel = (t: number) => {
   const m = (props.approverTypes as any[]).find((x) => x.value === t)
@@ -193,7 +248,8 @@ function approverSummary(node: any) {
     const mode = node.multiMode === 2 ? '会签' : '或签'
     return `${approverTypeLabel(node.approverType)}：${names.length ? names.join('、') : '未选'}（${mode}）`
   }
-  if (node.nodeType === NODE_TYPE.CONDITION) return '按分支条件路由'
+  if (node.nodeType === NODE_TYPE.DECISION) return '按分支条件路由'
+  if (node.nodeType === NODE_TYPE.NOTIFY) return '发送通知给指定人员'
   return ''
 }
 
@@ -258,8 +314,15 @@ watch(() => props.modelValue, reload, { deep: false, immediate: true })
 
 // ==================== 拖拽添加 ====================
 let dragType = 0
+let dragging = false
 function onDragStart(_evt: DragEvent, p: any) {
   dragType = p.type
+  dragging = true
+}
+
+function onDragEnd() {
+  // 延迟重置，避免拖拽后紧接的 click 事件误新增
+  setTimeout(() => { dragging = false; dragType = 0 }, 0)
 }
 
 function onDrop(evt: DragEvent) {
@@ -270,8 +333,23 @@ function onDrop(evt: DragEvent) {
   dragType = 0
 }
 
+// 单击 palette 项：自动在画布中心附近新增节点（小量抖动避免重叠）
+function onPaletteAdd(p: any) {
+  if (dragging) return
+  if (!canvasWrap.value) return
+  const rect = canvasWrap.value.getBoundingClientRect()
+  const base = screenToFlowCoordinate({
+    x: rect.left + rect.width / 2,
+    y: rect.top + rect.height / 2,
+  })
+  const jitter = (nodes.value.length % 6) * 26
+  const position = { x: base.x - 80 + jitter, y: base.y - 40 + jitter }
+  const data = makeNodeData({ node_type: p.type, node_name: defaultName(p.type) })
+  nodes.value.push({ id: nextKey(), type: 'flow', position, data })
+}
+
 function defaultName(t: number) {
-  return t === NODE_TYPE.START ? '开始' : t === NODE_TYPE.END ? '结束' : t === NODE_TYPE.CONDITION ? '条件网关' : '审批节点'
+  return t === NODE_TYPE.START ? '开始' : t === NODE_TYPE.END ? '结束' : t === NODE_TYPE.DECISION ? '判断节点' : t === NODE_TYPE.NOTIFY ? '通知节点' : '审批节点'
 }
 
 // ==================== 连线 ====================
@@ -303,7 +381,8 @@ const nodeForm = reactive<any>({
 })
 
 const nodeDialogTitle = computed(() => {
-  if (nodeForm.nodeType === NODE_TYPE.CONDITION) return '配置条件网关'
+  if (nodeForm.nodeType === NODE_TYPE.DECISION) return '配置判断节点'
+  if (nodeForm.nodeType === NODE_TYPE.NOTIFY) return '配置通知节点'
   if (nodeForm.nodeType === NODE_TYPE.APPROVAL) return '配置审批节点'
   return '配置节点'
 })
@@ -348,8 +427,8 @@ function confirmNode() {
     return
   }
   const meta = currentApproverMeta.value
-  if (nodeForm.nodeType === NODE_TYPE.APPROVAL && meta && meta.needsSelection && !(nodeForm.approverIds || []).length) {
-    ElMessage.warning('请选择审批人')
+  if ((nodeForm.nodeType === NODE_TYPE.APPROVAL || nodeForm.nodeType === NODE_TYPE.NOTIFY) && meta && meta.needsSelection && !(nodeForm.approverIds || []).length) {
+    ElMessage.warning(nodeForm.nodeType === NODE_TYPE.NOTIFY ? '请选择通知对象' : '请选择审批人')
     return
   }
   node.data = makeNodeData({
@@ -440,49 +519,156 @@ defineExpose({ serialize, fitView })
 }
 
 .palette {
-  width: 160px;
-  flex: 0 0 160px;
-  padding: 12px;
-  background: #fafafa;
+  width: 220px;
+  flex: 0 0 220px;
+  padding: 14px;
+  background: #fafbfc;
   border-right: 1px solid #e4e7ed;
+  overflow-y: auto;
 
   .palette-title {
+    display: flex;
+    align-items: center;
     font-weight: 600;
-    margin-bottom: 10px;
+    margin-bottom: 12px;
     font-size: 14px;
+    color: #303133;
+    letter-spacing: 0.5px;
+
+    &::before {
+      content: '';
+      display: inline-block;
+      width: 3px;
+      height: 14px;
+      background: #409eff;
+      border-radius: 2px;
+      margin-right: 8px;
+    }
+  }
+
+  .palette-list {
+    display: flex;
+    flex-direction: column;
+    gap: 10px;
   }
 
   .palette-item {
     display: flex;
     align-items: center;
-    gap: 6px;
-    padding: 8px 10px;
-    margin-bottom: 8px;
-    border-radius: 6px;
+    gap: 12px;
+    padding: 12px 14px;
+    min-height: 48px;
+    border-radius: 8px;
     border: 1px solid #dcdfe6;
     background: #fff;
     cursor: grab;
     font-size: 13px;
+    user-select: none;
+    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
 
     &:hover {
       border-color: #409eff;
+      background: #f5faff;
+      box-shadow: 0 3px 10px rgba(64, 158, 255, 0.15);
+      transform: translateY(-1px);
     }
 
-    .pal-icon {
-      font-size: 15px;
+    &:active {
+      cursor: grabbing;
+      transform: translateY(0);
+      box-shadow: 0 1px 4px rgba(64, 158, 255, 0.1);
+    }
+
+    .pal-shape-wrap {
+      flex: 0 0 26px;
+      width: 26px;
+      height: 26px;
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+    }
+
+    .pal-shape {
+      display: inline-block;
+    }
+
+    // 开始/结束：胶囊
+    .shape-start,
+    .shape-end {
+      width: 22px;
+      height: 11px;
+      border-radius: 999px;
+      background: #67c23a;
+    }
+    .shape-end {
+      background: #909399;
+    }
+
+    // 审批节点：矩形
+    .shape-approval {
+      width: 20px;
+      height: 15px;
+      border-radius: 3px;
+      background: #409eff;
+    }
+
+    // 判断节点：菱形（旋转方块）
+    .shape-decision {
+      width: 15px;
+      height: 15px;
+      transform: rotate(45deg);
+      border-radius: 2px;
+      background: #e6a23c;
+    }
+
+    // 通知节点：圆形
+    .shape-notify {
+      width: 17px;
+      height: 17px;
+      border-radius: 50%;
+      background: #9254de;
+    }
+
+    .pal-info {
+      flex: 1;
+      min-width: 0;
+      display: flex;
+      flex-direction: column;
+      gap: 2px;
+    }
+
+    .pal-label {
+      font-weight: 600;
+      color: #303133;
+      font-size: 13.5px;
+      line-height: 1.3;
+    }
+
+    .pal-desc {
+      color: #909399;
+      font-size: 11.5px;
+      line-height: 1.3;
+      overflow: hidden;
+      white-space: nowrap;
+      text-overflow: ellipsis;
     }
   }
 
   .pal-start { border-left: 3px solid #67c23a; }
   .pal-approval { border-left: 3px solid #409eff; }
-  .pal-condition { border-left: 3px solid #e6a23c; }
+  .pal-decision { border-left: 3px solid #e6a23c; }
+  .pal-notify { border-left: 3px solid #9254de; }
   .pal-end { border-left: 3px solid #909399; }
 
   .palette-tip {
-    margin-top: 10px;
-    font-size: 12px;
+    margin-top: 14px;
+    padding: 10px 12px;
+    font-size: 11.5px;
     color: #909399;
-    line-height: 1.5;
+    line-height: 1.7;
+    background: rgba(64, 158, 255, 0.05);
+    border: 1px dashed rgba(64, 158, 255, 0.2);
+    border-radius: 6px;
   }
 }
 
@@ -528,9 +714,105 @@ defineExpose({ serialize, fitView })
 
 .fn-start { border-top: 3px solid #67c23a; .fn-badge { background: #67c23a; } }
 .fn-approval { border-top: 3px solid #409eff; .fn-badge { background: #409eff; } }
-.fn-condition { border-top: 3px solid #e6a23c; .fn-badge { background: #e6a23c; } }
 .fn-end { border-top: 3px solid #909399; .fn-badge { background: #909399; } }
 
+// 开始 / 结束：胶囊
+.fn-pill {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  min-width: 90px;
+  padding: 8px 16px;
+  border-radius: 999px;
+  background: #fff;
+  border: 1px solid #dcdfe6;
+  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
+  font-size: 13px;
+  font-weight: 600;
+  color: #303133;
+
+  .fn-pill-icon {
+    font-size: 15px;
+  }
+}
+.fn-pill-start {
+  border-color: #67c23a;
+  color: #529b2e;
+  background: #f0f9eb;
+}
+.fn-pill-end {
+  border-color: #909399;
+  color: #73767a;
+  background: #f4f4f5;
+}
+
+// 判断节点：菱形
+.fn-diamond {
+  position: relative;
+  width: 120px;
+  height: 120px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+
+  .fn-diamond-shape {
+    position: absolute;
+    inset: 18px;
+    transform: rotate(45deg);
+    background: #fdf6ec;
+    border: 2px solid #e6a23c;
+    border-radius: 8px;
+    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
+  }
+
+  .fn-diamond-label {
+    position: relative;
+    z-index: 1;
+    font-size: 12px;
+    font-weight: 600;
+    color: #b88230;
+    text-align: center;
+    max-width: 80px;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+}
+
+// 通知节点：圆形
+.fn-circle {
+  position: relative;
+  width: 88px;
+  height: 88px;
+  border-radius: 50%;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 2px;
+  font-size: 12px;
+  font-weight: 600;
+  text-align: center;
+  background: #fff;
+  border: 2px solid transparent;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
+}
+.fn-circle-notify {
+  border-color: #d3adf7;
+  background: #f9f0ff;
+  color: #531dab;
+}
+.fn-circle-icon {
+  font-size: 16px;
+}
+.fn-circle-label {
+  max-width: 70px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  line-height: 1.2;
+}
+
 .hint {
   font-size: 12px;
   color: #909399;
diff --git a/backend/src/views/system/approval/index.vue b/backend/src/views/system/approval/index.vue
index 46f0a3b..457d0ea 100644
--- a/backend/src/views/system/approval/index.vue
+++ b/backend/src/views/system/approval/index.vue
@@ -33,7 +33,6 @@
             >
               <div class="flow-name">
                 {{ f.flow_name }}
-                <el-tag v-if="f.is_default === 1" size="small" type="success">默认</el-tag>
               </div>
               <div class="flow-code">{{ f.flow_code || '（保存后生成编号）' }}</div>
               <div class="flow-sub">
@@ -75,18 +74,23 @@
               <el-input v-model="current.description" type="textarea" :rows="2" placeholder="流程用途说明" />
             </el-form-item>
             <el-row :gutter="12">
-              <el-col :span="12">
-                <el-form-item label="设为默认">
-                  <el-switch v-model="current.is_default" :active-value="1" :inactive-value="0" />
-                  <span class="hint">同分类仅一条默认，新申请走默认流程</span>
-                </el-form-item>
-              </el-col>
               <el-col :span="12">
                 <el-form-item label="启用状态">
                   <el-switch v-model="current.status" :active-value="1" :inactive-value="0" />
                 </el-form-item>
               </el-col>
             </el-row>
+            <el-form-item label="适用部门">
+              <el-tree-select v-model="current.apply_dept_ids" :data="orgTree"
+                            multiple show-checkbox check-strictly default-expand-all
+                            :render-after-expand="false"
+                            node-key="id" :props="{ label: 'name', children: 'children', value: 'id' }"
+                            clearable filterable
+                            @change="onDeptChange"
+                            placeholder="留空表示全公司通用（选公司=全员；选部门=覆及子部门）"
+                            style="width:100%" />
+              <!-- <div class="hint">祖先链命中：选中上级部门或公司时，其下子部门成员都会命中本流程</div> -->
+            </el-form-item>
           </el-form>
 
           <el-divider content-position="left">流程编排（拖拽节点 · 手动连线 · 条件分支）</el-divider>
@@ -119,6 +123,7 @@ import {
   saveApprovalFlow,
   deleteApprovalFlow
 } from '@/api/approval'
+import { buildOrgTree } from '@/views/apps/organization/composables'
 
 const modules = ref<any[]>([])
 const activeModule = ref<string>('')
@@ -127,7 +132,6 @@ const current = ref<any>(null)
 const saving = ref(false)
 
 const canvasRef = ref<any>(null)
-// 传给画布的模型：{ nodes, edges }
 const graphModel = ref<any>({ nodes: [], edges: [] })
 
 const pools = reactive<{ users: any[]; roles: any[]; orgs: any[]; positions: any[] }>({
@@ -137,6 +141,44 @@ const pools = reactive<{ users: any[]; roles: any[]; orgs: any[]; positions: any
   positions: []
 })
 
+// 将平面部门列表拼成树（复用组织管理页的 buildOrgTree，内部做 Number 强转）
+// 去除空 children 数组，避免 el-tree-select 叶节点渲染异常导致无法点击选中
+function stripEmptyChildren(nodes: any[]): any[] {
+  return nodes.map((n) => {
+    const node = { ...n }
+    if (node.children && node.children.length > 0) {
+      node.children = stripEmptyChildren(node.children)
+    } else {
+      delete node.children
+    }
+    return node
+  })
+}
+const orgTree = computed(() => stripEmptyChildren(buildOrgTree(pools.orgs)))
+
+// 祖先剪枝：若某选中节点的上级（含公司）也已被勾选，则子节点冗余，自动剔除
+function pruneRedundantDepts(ids: any[]): number[] {
+  if (!ids || !ids.length) return []
+  const numIds = ids.map((v) => Number(v))
+  const set = new Set(numIds)
+  const parentOf = new Map<number, number>()
+  pools.orgs.forEach((o: any) => parentOf.set(Number(o.id), Number(o.parent_id || 0)))
+  return numIds.filter((id) => {
+    let p = parentOf.get(id) || 0
+    const guard = new Set<number>([id])
+    while (p && parentOf.has(p) && !guard.has(p)) {
+      if (set.has(p)) return false // 祖先已选 → 冗余
+      guard.add(p)
+      p = parentOf.get(p) || 0
+    }
+    return true
+  })
+}
+
+function onDeptChange(ids: any[]) {
+  if (current.value) current.value.apply_dept_ids = pruneRedundantDepts(ids)
+}
+
 // 租户侧 6 种审批人类型
 const approverTypes = [
   { value: 1, label: '指定用户', needsSelection: true, selectLabel: '审批人', poolKey: 'users' },
@@ -185,6 +227,8 @@ async function selectFlow(id: number) {
   const res: any = await getApprovalFlowDetail(id)
   if (res.code === 200) {
     const d = res.data || {}
+    // 回显时对历史冗余选择做一次剪枝
+    d.apply_dept_ids = pruneRedundantDepts(d.apply_dept_ids || [])
     current.value = d
     graphModel.value = { nodes: d.nodes || [], edges: d.edges || [] }
   }
@@ -199,7 +243,8 @@ function openNewFlow() {
     flow_code: '',
     description: '',
     is_default: 0,
-    status: 1
+    status: 1,
+    apply_dept_ids: [] as number[]
   }
   // 预置开始/结束，方便用户直接拖审批节点连线
   graphModel.value = {
@@ -231,6 +276,7 @@ async function saveFlow() {
       description: current.value.description,
       is_default: current.value.is_default,
       status: current.value.status,
+      apply_dept_ids: current.value.apply_dept_ids || [],
       nodes: graph.nodes,
       edges: graph.edges
     }
diff --git a/go/controllers/backend_approval.go b/go/controllers/backend_approval.go
index bdfa8fd..80ba5e1 100644
--- a/go/controllers/backend_approval.go
+++ b/go/controllers/backend_approval.go
@@ -10,6 +10,7 @@ import (
 
 	"server/models"
 	"server/services"
+	approvalEngine "server/services/approval"
 
 	"github.com/beego/beego/v2/client/orm"
 	beego "github.com/beego/beego/v2/server/web"
@@ -62,16 +63,17 @@ func (c *BackendApprovalController) FlowList() {
 		cnt, _ := models.Orm.QueryTable(new(models.TenantApprovalNode)).
 			Filter("flow_id", r.ID).Filter("is_deleted", 0).Count()
 		list = append(list, approvalFlowView{
-			ID:          r.ID,
-			ModuleCode:  r.ModuleCode,
-			BizType:     r.BizType,
-			FlowCode:    r.FlowCode,
-			FlowName:    r.FlowName,
-			Description: r.Description,
-			IsDefault:   r.IsDefault,
-			Status:      r.Status,
-			NodeCount:   int(cnt),
-			CreateTime:  r.CreateTime.Format("2006-01-02 15:04:05"),
+			ID:           r.ID,
+			ModuleCode:   r.ModuleCode,
+			BizType:      r.BizType,
+			FlowCode:     r.FlowCode,
+			FlowName:     r.FlowName,
+			Description:  r.Description,
+			IsDefault:    r.IsDefault,
+			Status:       r.Status,
+			NodeCount:    int(cnt),
+			CreateTime:   r.CreateTime.Format("2006-01-02 15:04:05"),
+			ApplyDeptIDs: parseIDSlice(r.ApplyDeptIDs),
 		})
 	}
 	c.Data["json"] = map[string]interface{}{"code": 200, "msg": "ok", "data": list}
@@ -105,17 +107,18 @@ func tenantFlowToView(f models.TenantApprovalFlow) approvalFlowView {
 		Filter("flow_id", f.ID).Filter("is_deleted", 0).
 		OrderBy("sort", "id").All(&nodes)
 	view := approvalFlowView{
-		ID:          f.ID,
-		ModuleCode:  f.ModuleCode,
-		BizType:     f.BizType,
-		FlowCode:    f.FlowCode,
-		FlowName:    f.FlowName,
-		Description: f.Description,
-		IsDefault:   f.IsDefault,
-		Status:      f.Status,
-		NodeCount:   len(nodes),
-		CreateTime:  f.CreateTime.Format("2006-01-02 15:04:05"),
-		Nodes:       make([]approvalNodePayload, 0, len(nodes)),
+		ID:           f.ID,
+		ModuleCode:   f.ModuleCode,
+		BizType:      f.BizType,
+		FlowCode:     f.FlowCode,
+		FlowName:     f.FlowName,
+		Description:  f.Description,
+		IsDefault:    f.IsDefault,
+		Status:       f.Status,
+		NodeCount:    len(nodes),
+		CreateTime:   f.CreateTime.Format("2006-01-02 15:04:05"),
+		ApplyDeptIDs: parseIDSlice(f.ApplyDeptIDs),
+		Nodes:        make([]approvalNodePayload, 0, len(nodes)),
 	}
 	edgeNodes := make([]flowEdgeNode, 0, len(nodes))
 	for _, n := range nodes {
@@ -176,6 +179,18 @@ func (c *BackendApprovalController) FlowSave() {
 	g := buildGraph(p.Nodes, p.Edges)
 	now := time.Now()
 
+	// 适用部门写入前校验：需全部属于当前租户（空列表=全公司通用，直接放行）
+	if len(p.ApplyDeptIDs) > 0 {
+		count, _ := models.Orm.QueryTable(new(models.BackendOrganization)).
+			Filter("tid", tid).Filter("id__in", p.ApplyDeptIDs).Filter("delete_time__isnull", true).
+			Count()
+		if int(count) != len(p.ApplyDeptIDs) {
+			jsonErr(&c.Controller, 400, 400, "适用部门包含非本租户组织，请重新选择")
+			return
+		}
+	}
+	applyDeptCSV := joinIDs(p.ApplyDeptIDs)
+
 	o := models.Orm
 	var flowID uint64
 	var flowCode string
@@ -190,13 +205,14 @@ func (c *BackendApprovalController) FlowSave() {
 		flowCode = exist.FlowCode
 		_, err := o.QueryTable(new(models.TenantApprovalFlow)).
 			Filter("id", flowID).Filter("tid", tid).Update(orm.Params{
-			"module_code": p.ModuleCode,
-			"biz_type":    p.BizType,
-			"flow_name":   p.FlowName,
-			"description": p.Description,
-			"is_default":  p.IsDefault,
-			"status":      p.Status,
-			"update_time": now,
+			"module_code":    p.ModuleCode,
+			"biz_type":       p.BizType,
+			"flow_name":      p.FlowName,
+			"description":    p.Description,
+			"is_default":     p.IsDefault,
+			"status":         p.Status,
+			"apply_dept_ids": applyDeptCSV,
+			"update_time":    now,
 		})
 		if err != nil {
 			jsonErr(&c.Controller, 500, 500, "保存失败: "+err.Error())
@@ -204,14 +220,15 @@ func (c *BackendApprovalController) FlowSave() {
 		}
 	} else {
 		row := models.TenantApprovalFlow{
-			Tid:         tid,
-			ModuleCode:  p.ModuleCode,
-			BizType:     p.BizType,
-			FlowName:    p.FlowName,
-			Description: p.Description,
-			IsDefault:   p.IsDefault,
-			Status:      p.Status,
-			CreateTime:  now,
+			Tid:          tid,
+			ModuleCode:   p.ModuleCode,
+			BizType:      p.BizType,
+			FlowName:     p.FlowName,
+			Description:  p.Description,
+			IsDefault:    p.IsDefault,
+			Status:       p.Status,
+			ApplyDeptIDs: applyDeptCSV,
+			CreateTime:   now,
 		}
 		id, err := o.Insert(&row)
 		if err != nil {
@@ -305,6 +322,7 @@ func (c *BackendApprovalController) Pick() {
 	list := make([]map[string]interface{}, 0, len(rows))
 	for _, r := range rows {
 		list = append(list, map[string]interface{}{
+			"id":          r.ID,
 			"module_code": r.ModuleCode,
 			"flow_code":   r.FlowCode,
 			"flow_name":   r.FlowName,
@@ -404,7 +422,10 @@ func (c *BackendApprovalController) Options() {
 		OrderBy("sort", "id").All(&og)
 	orgList := make([]map[string]interface{}, 0, len(og))
 	for _, o := range og {
-		orgList = append(orgList, map[string]interface{}{"id": o.ID, "name": o.OrgName})
+		orgList = append(orgList, map[string]interface{}{
+			"id": o.ID, "name": o.OrgName,
+			"parent_id": o.ParentID, "is_company": o.IsCompany,
+		})
 	}
 
 	var ps []models.BackendPosition
@@ -429,6 +450,38 @@ func (c *BackendApprovalController) Options() {
 	_ = c.ServeJSON()
 }
 
+// AvailableFlows GET /backend/approval/flow/available?biz_type=reimburse
+// 业务侧“发起前拉可用流”：基于当前登录用户的部门，过滤启用的流程。
+// 前端基于返回结果判定：空则提示配置；一条自动带入；多条下拉选。
+func (c *BackendApprovalController) AvailableFlows() {
+	claims, err := requireBackend(&c.Controller)
+	if err != nil {
+		jsonErr(&c.Controller, 401, 401, err.Error())
+		return
+	}
+	tid := uint64(claims.TenantId)
+	bizType := strings.TrimSpace(c.GetString("biz_type"))
+	if bizType == "" {
+		jsonErr(&c.Controller, 400, 400, "缺少 biz_type 参数")
+		return
+	}
+	// 取当前登录用户的部门（未分配时 OrgID=0，仅命中“全公司通用”流）
+	var tu models.SystemTenantUser
+	var userOrgID uint64
+	if e := models.Orm.QueryTable(new(models.SystemTenantUser)).
+		Filter("tid", tid).Filter("uid", claims.UserID).Filter("delete_time__isnull", true).
+		One(&tu); e == nil {
+		userOrgID = tu.OrgID
+	}
+	list, err := approvalEngine.ListAvailableFlows(models.ApprovalScopeTenant, tid, bizType, userOrgID)
+	if err != nil {
+		jsonErr(&c.Controller, 500, 500, "查询失败: "+err.Error())
+		return
+	}
+	c.Data["json"] = map[string]interface{}{"code": 200, "msg": "ok", "data": list}
+	_ = c.ServeJSON()
+}
+
 // ============================ 辅助函数 ============================
 
 // firstNonEmptyStr 取字符串指针/普通字符串中第一个非空值
diff --git a/go/controllers/platform_approval.go b/go/controllers/platform_approval.go
index c9f89eb..2e9bc2d 100644
--- a/go/controllers/platform_approval.go
+++ b/go/controllers/platform_approval.go
@@ -10,6 +10,7 @@ import (
 
 	"server/models"
 	"server/services"
+	approvalEngine "server/services/approval"
 
 	"github.com/beego/beego/v2/client/orm"
 	beego "github.com/beego/beego/v2/server/web"
@@ -26,12 +27,12 @@ type PlatformApprovalController struct {
 // ---- 配置侧 JSON 结构 ----
 
 // approvalNodePayload 单个节点（前端画布节点）。
-// node_type：1开始 2审批 3结束 4条件网关；pos_x/pos_y 为画布坐标回显；
-// condition_expr 为该节点作为「条件网关出边目标」时的进入条件（由 edges 反推落库）。
+// node_type：1开始 2审批 3结束 4判断 5通知；pos_x/pos_y 为画布坐标回显；
+// condition_expr 为该节点作为「判断节点出边目标」时的进入条件（由 edges 反推落库）。
 type approvalNodePayload struct {
 	NodeKey       string   `json:"node_key"`
 	NodeName      string   `json:"node_name"`
-	NodeType      int8     `json:"node_type"`     // 1开始 2审批 3结束 4条件网关
+	NodeType      int8     `json:"node_type"`     // 1开始 2审批 3结束 4判断 5通知
 	ApproverType  int8     `json:"approver_type"` // 1指定用户 2指定角色 ...
 	ApproverIDs   []uint64 `json:"approver_ids"`
 	MultiMode     int8     `json:"multi_mode"`    // 1或签 2会签
@@ -52,31 +53,33 @@ type approvalEdge struct {
 
 // approvalFlowSave 保存流程（图：节点 + 连线，节点全量覆盖）
 type approvalFlowSave struct {
-	ID          uint64                `json:"id"`
-	ModuleCode  string                `json:"module_code"`
-	BizType     string                `json:"biz_type"`
-	FlowName    string                `json:"flow_name"`
-	Description string                `json:"description"`
-	IsDefault   int8                  `json:"is_default"`
-	Status      int8                  `json:"status"`
-	Nodes       []approvalNodePayload `json:"nodes"`
-	Edges       []approvalEdge        `json:"edges"`
+	ID           uint64                `json:"id"`
+	ModuleCode   string                `json:"module_code"`
+	BizType      string                `json:"biz_type"`
+	FlowName     string                `json:"flow_name"`
+	Description  string                `json:"description"`
+	IsDefault    int8                  `json:"is_default"`
+	Status       int8                  `json:"status"`
+	ApplyDeptIDs []uint64              `json:"apply_dept_ids"` // 仅租户侧使用，空=全公司通用
+	Nodes        []approvalNodePayload `json:"nodes"`
+	Edges        []approvalEdge        `json:"edges"`
 }
 
 // approvalFlowView 流程 + 节点 + 连线（详情返回）
 type approvalFlowView struct {
-	ID          uint64                `json:"id"`
-	ModuleCode  string                `json:"module_code"`
-	BizType     string                `json:"biz_type"`
-	FlowCode    string                `json:"flow_code"`
-	FlowName    string                `json:"flow_name"`
-	Description string                `json:"description"`
-	IsDefault   int8                  `json:"is_default"`
-	Status      int8                  `json:"status"`
-	NodeCount   int                   `json:"node_count"`
-	CreateTime  string                `json:"create_time"`
-	Nodes       []approvalNodePayload `json:"nodes"`
-	Edges       []approvalEdge        `json:"edges"`
+	ID           uint64                `json:"id"`
+	ModuleCode   string                `json:"module_code"`
+	BizType      string                `json:"biz_type"`
+	FlowCode     string                `json:"flow_code"`
+	FlowName     string                `json:"flow_name"`
+	Description  string                `json:"description"`
+	IsDefault    int8                  `json:"is_default"`
+	Status       int8                  `json:"status"`
+	NodeCount    int                   `json:"node_count"`
+	CreateTime   string                `json:"create_time"`
+	ApplyDeptIDs []uint64              `json:"apply_dept_ids"` // 仅租户侧回显
+	Nodes        []approvalNodePayload `json:"nodes"`
+	Edges        []approvalEdge        `json:"edges"`
 }
 
 // readApprovalBody 读取并解析 JSON 请求体
@@ -355,6 +358,7 @@ func (c *PlatformApprovalController) Pick() {
 	list := make([]map[string]interface{}, 0, len(rows))
 	for _, r := range rows {
 		list = append(list, map[string]interface{}{
+			"id":          r.ID,
 			"module_code": r.ModuleCode,
 			"biz_type":    r.BizType,
 			"flow_code":   r.FlowCode,
@@ -457,6 +461,28 @@ func (c *PlatformApprovalController) BizTypes() {
 	_ = c.ServeJSON()
 }
 
+// AvailableFlows GET /platform/approval/flow/available?biz_type=domain
+// 业务侧“发起前拉可用流”：返回当前 biz_type 启用的平台流程列表。
+// 平台无部门概念，userOrgID 固定为 0（引擎内平台侧不做部门过滤）。
+func (c *PlatformApprovalController) AvailableFlows() {
+	if _, err := requirePlatform(&c.Controller); err != nil {
+		jsonErr(&c.Controller, 401, 401, err.Error())
+		return
+	}
+	bizType := strings.TrimSpace(c.GetString("biz_type"))
+	if bizType == "" {
+		jsonErr(&c.Controller, 400, 400, "缺少 biz_type 参数")
+		return
+	}
+	list, err := approvalEngine.ListAvailableFlows(models.ApprovalScopePlatform, 0, bizType, 0)
+	if err != nil {
+		jsonErr(&c.Controller, 500, 500, "查询失败: "+err.Error())
+		return
+	}
+	c.Data["json"] = map[string]interface{}{"code": 200, "msg": "ok", "data": list}
+	_ = c.ServeJSON()
+}
+
 // ============================ 辅助函数 ============================
 
 // approverDisplayName 优先姓名，回退账号（AdminUser.Account 为普通字符串）
@@ -467,7 +493,7 @@ func approverDisplayName(name *string, account string) string {
 	return strings.TrimSpace(account)
 }
 
-// validateApprovalNodes 校验审批节点：必须选定审批人来源且非空（开始/结束/条件网关跳过）
+// validateApprovalNodes 校验审批节点：必须选定审批人来源且非空（开始/结束/判断/通知跳过）
 func validateApprovalNodes(nodes []approvalNodePayload) error {
 	for i, nd := range nodes {
 		if nd.NodeType == models.ApprovalNodeStart || nd.NodeType == models.ApprovalNodeEnd ||
@@ -587,7 +613,7 @@ func rebuildEdges(nodes []flowEdgeNode) []approvalEdge {
 	return edges
 }
 
-// validateApprovalGraph 校验画布图的完整性：单一开始、审批节点≥1、网关出边≥2、全部可达、连线端点有效
+// validateApprovalGraph 校验画布图的完整性：单一开始、审批节点≥1、判断节点出边≥2、全部可达、连线端点有效
 func validateApprovalGraph(nodes []approvalNodePayload, edges []approvalEdge) error {
 	if len(nodes) == 0 {
 		return fmt.Errorf("流程至少需包含开始与审批节点")
@@ -632,7 +658,7 @@ func validateApprovalGraph(nodes []approvalNodePayload, edges []approvalEdge) er
 	}
 	for _, k := range condKeys {
 		if len(nextAdj[k]) < 2 {
-			return fmt.Errorf("条件网关需至少两条分支连线")
+			return fmt.Errorf("判断节点需至少两条分支连线")
 		}
 	}
 	visited := map[string]bool{}
diff --git a/go/docs/sql/alter_approval_binding_v2.sql b/go/docs/sql/alter_approval_binding_v2.sql
new file mode 100644
index 0000000..78f7b56
--- /dev/null
+++ b/go/docs/sql/alter_approval_binding_v2.sql
@@ -0,0 +1,34 @@
+-- =============================================================
+-- 审批流双层绑定重构 v2 - 增量迁移
+--
+-- 场景：上一版 create_approval_binding.sql 已建表但含 condition_expr/priority
+--       本次将绑定层简化为纯关联，流程表加 apply_dept_ids 部门作用域。
+--
+-- 执行顺序：
+--   1) DROP + 重建绑定表（结构变简，无法原地迁移）
+--   2) 后端流程表补 apply_dept_ids
+-- =============================================================
+
+-- 1. 绑定表：先删后建（如已有绑定数据请手工备份后再执行）
+DROP TABLE IF EXISTS `yz_approval_binding`;
+
+CREATE TABLE `yz_approval_binding` (
+  `id`          BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  `scope`       TINYINT NOT NULL DEFAULT 1 COMMENT '1租户 2平台',
+  `tid`         BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '租户ID（平台侧为0）',
+  `biz_type`    VARCHAR(50) NOT NULL DEFAULT '' COMMENT '功能/单据类型：reimburse/bid/domain',
+  `flow_id`     BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '绑定的审批流ID',
+  `flow_code`   VARCHAR(64) NOT NULL DEFAULT '' COMMENT '审批流编号（冗余）',
+  `remark`      VARCHAR(200) NOT NULL DEFAULT '' COMMENT '备注',
+  `is_deleted`  TINYINT NOT NULL DEFAULT 0,
+  `create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `update_time` DATETIME DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `uk_scope_tid_biz_flow` (`scope`,`tid`,`biz_type`,`flow_id`),
+  KEY `idx_flow` (`flow_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='审批流功能绑定（biz_type↔flow 多对多）';
+
+-- 2. 后端流程表：补部门作用域列
+ALTER TABLE `yz_backend_approval_flow`
+  ADD COLUMN `apply_dept_ids` VARCHAR(500) NOT NULL DEFAULT ''
+  COMMENT '适用部门ID列表 CSV，空=全公司通用' AFTER `flow_code`;
diff --git a/go/docs/sql/alter_approval_flow_20261007.sql b/go/docs/sql/alter_approval_flow_20261007.sql
new file mode 100644
index 0000000..c26684c
--- /dev/null
+++ b/go/docs/sql/alter_approval_flow_20261007.sql
@@ -0,0 +1,33 @@
+-- =============================================================
+-- 审批流图编辑器 - 增量迁移（对已存在的旧表补列）
+-- MySQL 兼容写法：如列已存在会报错，跳过该条即可
+-- 如果表本身不存在，请先执行 create_approval_flow.sql
+-- =============================================================
+
+-- 1. 租户侧流程表：补 flow_code
+ALTER TABLE `yz_backend_approval_flow`
+  ADD COLUMN `flow_code` VARCHAR(64) NOT NULL DEFAULT '' COMMENT '审批流编号（自动生成 FL%06d）' AFTER `biz_type`;
+
+ALTER TABLE `yz_backend_approval_flow`
+  ADD INDEX `idx_tid_code` (`tid`, `flow_code`);
+
+-- 2. 租户侧节点表：补 pos_x / pos_y
+ALTER TABLE `yz_backend_approval_node`
+  ADD COLUMN `pos_x` INT NOT NULL DEFAULT 0 COMMENT '画布X坐标' AFTER `sort`,
+  ADD COLUMN `pos_y` INT NOT NULL DEFAULT 0 COMMENT '画布Y坐标' AFTER `pos_x`;
+
+-- 3. 平台侧流程表：补 flow_code
+ALTER TABLE `yz_platform_approval_flow`
+  ADD COLUMN `flow_code` VARCHAR(64) NOT NULL DEFAULT '' COMMENT '审批流编号（自动生成 FL%06d）' AFTER `biz_type`;
+
+ALTER TABLE `yz_platform_approval_flow`
+  ADD INDEX `idx_code` (`flow_code`);
+
+-- 4. 平台侧节点表：补 pos_x / pos_y
+ALTER TABLE `yz_platform_approval_node`
+  ADD COLUMN `pos_x` INT NOT NULL DEFAULT 0 COMMENT '画布X坐标' AFTER `sort`,
+  ADD COLUMN `pos_y` INT NOT NULL DEFAULT 0 COMMENT '画布Y坐标' AFTER `pos_x`;
+
+-- 5. 实例表：补 form_data（条件求值用表单快照 JSON）
+ALTER TABLE `yz_approval_instance`
+  ADD COLUMN `form_data` TEXT NULL COMMENT '发起表单数据快照(JSON)' AFTER `submit_dept_id`;
diff --git a/go/docs/sql/create_approval_binding.sql b/go/docs/sql/create_approval_binding.sql
new file mode 100644
index 0000000..8c60342
--- /dev/null
+++ b/go/docs/sql/create_approval_binding.sql
@@ -0,0 +1,29 @@
+-- =============================================================
+-- 审批流功能绑定（biz_type ↔ flow 多对多关联）
+--
+-- 对应模型：go/models/approval.go  ApprovalBinding
+-- 用途：给某个功能（biz_type）绑定"可选审批流"清单，业务代码通过
+--       ListAvailableFlows(scope, tid, bizType, userOrgID) 拿到过滤后的
+--       可用流；若一条流程设置了 apply_dept_ids，则仅该部门成员可见。
+--
+-- 注意：本表**不含条件表达式 / 优先级**——条件分支在流程内部（条件网关）
+--       实现，与绑定层无关。
+-- =============================================================
+
+SET NAMES utf8mb4;
+
+CREATE TABLE IF NOT EXISTS `yz_approval_binding` (
+  `id`          BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  `scope`       TINYINT NOT NULL DEFAULT 1 COMMENT '1租户 2平台',
+  `tid`         BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '租户ID（平台侧为0）',
+  `biz_type`    VARCHAR(50) NOT NULL DEFAULT '' COMMENT '功能/单据类型：reimburse/bid/domain',
+  `flow_id`     BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '绑定的审批流ID',
+  `flow_code`   VARCHAR(64) NOT NULL DEFAULT '' COMMENT '审批流编号（冗余，方便查询）',
+  `remark`      VARCHAR(200) NOT NULL DEFAULT '' COMMENT '备注',
+  `is_deleted`  TINYINT NOT NULL DEFAULT 0,
+  `create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `update_time` DATETIME DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `uk_scope_tid_biz_flow` (`scope`,`tid`,`biz_type`,`flow_id`),
+  KEY `idx_flow` (`flow_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='审批流功能绑定（biz_type↔flow 多对多）';
diff --git a/go/docs/sql/create_approval_flow.sql b/go/docs/sql/create_approval_flow.sql
index 3b1031a..5764182 100644
--- a/go/docs/sql/create_approval_flow.sql
+++ b/go/docs/sql/create_approval_flow.sql
@@ -24,6 +24,7 @@ CREATE TABLE IF NOT EXISTS `yz_backend_approval_flow` (
   `module_code`  VARCHAR(50) NOT NULL DEFAULT '' COMMENT '所属功能模块 code（yz_system_modules.code）：oa/erp/crm/cms',
   `biz_type`     VARCHAR(50) NOT NULL DEFAULT '' COMMENT '适用单据类型：reimburse/bid/domain/...',
   `flow_code`    VARCHAR(64) NOT NULL DEFAULT '' COMMENT '审批流编号（自动生成、全局唯一，供各程序按编号发起）：FL000007',
+  `apply_dept_ids` VARCHAR(500) NOT NULL DEFAULT '' COMMENT '适用部门ID列表 CSV（yz_backend_organization.id），空=全公司通用',
   `flow_name`    VARCHAR(100) NOT NULL DEFAULT '' COMMENT '流程名称',
   `description`  VARCHAR(500) NOT NULL DEFAULT '' COMMENT '流程说明',
   `is_default`   TINYINT NOT NULL DEFAULT 0 COMMENT '是否该单据类型的默认流程：1是 0否',
diff --git a/go/models/approval.go b/go/models/approval.go
index 987db66..73dd875 100644
--- a/go/models/approval.go
+++ b/go/models/approval.go
@@ -22,7 +22,8 @@ const (
 	ApprovalNodeStart     = 1 // 开始
 	ApprovalNodeApproval  = 2 // 审批
 	ApprovalNodeEnd       = 3 // 结束
-	ApprovalNodeCondition = 4 // 条件分支（预留）
+	ApprovalNodeCondition = 4 // 判断节点
+	ApprovalNodeNotify    = 5 // 通知节点
 )
 
 // 审批人类型
@@ -52,19 +53,20 @@ const (
 
 // TenantApprovalFlow 租户侧审批流程 yz_backend_approval_flow
 type TenantApprovalFlow struct {
-	ID          uint64     `orm:"column(id);pk;auto" json:"id"`
-	Tid         uint64     `orm:"column(tid)" json:"tid"`
-	ModuleCode  string     `orm:"column(module_code);size(50);default()" json:"module_code"`
-	BizType     string     `orm:"column(biz_type);size(50);default()" json:"biz_type"`
-	FlowCode    string     `orm:"column(flow_code);size(64);default()" json:"flow_code"`
-	FlowName    string     `orm:"column(flow_name);size(100);default()" json:"flow_name"`
-	Description string     `orm:"column(description);size(500);default()" json:"description"`
-	IsDefault   int8       `orm:"column(is_default);default(0)" json:"is_default"`
-	Status      int8       `orm:"column(status);default(1)" json:"status"`
-	IsDeleted   int8       `orm:"column(is_deleted);default(0)" json:"is_deleted"`
-	CreateTime  time.Time  `orm:"column(create_time);auto_now_add;type(datetime)" json:"create_time"`
-	UpdateTime  *time.Time `orm:"column(update_time);type(datetime);null" json:"update_time"`
-	DeleteTime  *time.Time `orm:"column(delete_time);type(datetime);null" json:"delete_time"`
+	ID           uint64     `orm:"column(id);pk;auto" json:"id"`
+	Tid          uint64     `orm:"column(tid)" json:"tid"`
+	ModuleCode   string     `orm:"column(module_code);size(50);default()" json:"module_code"`
+	BizType      string     `orm:"column(biz_type);size(50);default()" json:"biz_type"`
+	FlowCode     string     `orm:"column(flow_code);size(64);default()" json:"flow_code"`
+	ApplyDeptIDs string     `orm:"column(apply_dept_ids);size(500);default()" json:"apply_dept_ids"`
+	FlowName     string     `orm:"column(flow_name);size(100);default()" json:"flow_name"`
+	Description  string     `orm:"column(description);size(500);default()" json:"description"`
+	IsDefault    int8       `orm:"column(is_default);default(0)" json:"is_default"`
+	Status       int8       `orm:"column(status);default(1)" json:"status"`
+	IsDeleted    int8       `orm:"column(is_deleted);default(0)" json:"is_deleted"`
+	CreateTime   time.Time  `orm:"column(create_time);auto_now_add;type(datetime)" json:"create_time"`
+	UpdateTime   *time.Time `orm:"column(update_time);type(datetime);null" json:"update_time"`
+	DeleteTime   *time.Time `orm:"column(delete_time);type(datetime);null" json:"delete_time"`
 }
 
 func (m *TenantApprovalFlow) TableName() string {
@@ -172,6 +174,7 @@ const (
 	ApprovalTaskReturned = 3 // 已退回
 	ApprovalTaskSkipped  = 4 // 已跳过
 	ApprovalTaskTimeout  = 5 // 已超时
+	ApprovalTaskNotified = 6 // 已通知
 )
 
 // 任务动作
@@ -244,3 +247,22 @@ type ApprovalTask struct {
 func (m *ApprovalTask) TableName() string {
 	return "yz_approval_task"
 }
+
+// ApprovalBinding 审批流功能绑定 yz_approval_binding
+// 纯关联表：一个 biz_type 可绑多条流程；条件分支在流程内部（条件网关）实现，本表不包含条件字段。
+type ApprovalBinding struct {
+	ID         uint64     `orm:"column(id);pk;auto" json:"id"`
+	Scope      int8       `orm:"column(scope);default(1)" json:"scope"`
+	Tid        uint64     `orm:"column(tid);default(0)" json:"tid"`
+	BizType    string     `orm:"column(biz_type);size(50);default()" json:"biz_type"`
+	FlowID     uint64     `orm:"column(flow_id);default(0)" json:"flow_id"`
+	FlowCode   string     `orm:"column(flow_code);size(64);default()" json:"flow_code"`
+	Remark     string     `orm:"column(remark);size(200);default()" json:"remark"`
+	IsDeleted  int8       `orm:"column(is_deleted);default(0)" json:"is_deleted"`
+	CreateTime time.Time  `orm:"column(create_time);auto_now_add;type(datetime)" json:"create_time"`
+	UpdateTime *time.Time `orm:"column(update_time);type(datetime);null" json:"update_time"`
+}
+
+func (m *ApprovalBinding) TableName() string {
+	return "yz_approval_binding"
+}
diff --git a/go/models/init.go b/go/models/init.go
index cb5977c..ec238f0 100644
--- a/go/models/init.go
+++ b/go/models/init.go
@@ -57,6 +57,8 @@ func Init(_ string) {
 		new(PlatformApprovalNode),
 		new(ApprovalInstance),
 		new(ApprovalTask),
+		// 审批流功能绑定（docs/sql/create_approval_binding.sql）
+		new(ApprovalBinding),
 		new(BackendReimbursement),
 		new(BackendReimbursementItem),
 		new(BackendReimbursementExpenseType),
diff --git a/go/routers/backend/backend.go b/go/routers/backend/backend.go
index 9d04594..9f037f6 100644
--- a/go/routers/backend/backend.go
+++ b/go/routers/backend/backend.go
@@ -27,6 +27,7 @@ func RegisterApprovalRoutes() {
 	beego.Router("/backend/approval/flow/save", &controllers.BackendApprovalController{}, "post:FlowSave")
 	beego.Router("/backend/approval/flow/delete/:id", &controllers.BackendApprovalController{}, "delete:FlowDelete")
 	beego.Router("/backend/approval/flow/pick", &controllers.BackendApprovalController{}, "get:Pick")
+	beego.Router("/backend/approval/flow/available", &controllers.BackendApprovalController{}, "get:AvailableFlows")
 }
 
 // RegisterProductRoutes 注册租户端「产品购买」路由。
diff --git a/go/routers/platform/platform.go b/go/routers/platform/platform.go
index 4e1ecdf..94a3ff3 100644
--- a/go/routers/platform/platform.go
+++ b/go/routers/platform/platform.go
@@ -178,6 +178,7 @@ func Register() {
 	beego.Router("/platform/approval/options", &controllers.PlatformApprovalController{}, "get:Options")
 	beego.Router("/platform/approval/biz-types", &controllers.PlatformApprovalController{}, "get:BizTypes")
 	beego.Router("/platform/approval/flow/pick", &controllers.PlatformApprovalController{}, "get:Pick")
+	beego.Router("/platform/approval/flow/available", &controllers.PlatformApprovalController{}, "get:AvailableFlows")
 
 	// 模块管理（yz_system_modules）
 	beego.Router("/platform/modules/list", &controllers.PlatformModulesController{}, "get:GetList")
diff --git a/go/services/approval/engine.go b/go/services/approval/engine.go
index bc178f3..3fbc3ab 100644
--- a/go/services/approval/engine.go
+++ b/go/services/approval/engine.go
@@ -568,6 +568,99 @@ func dedupeApprovers(in []Approver) []Approver {
 	return out
 }
 
+// ============================ 运行时：发起前的可用流查询 ============================
+
+// AvailableFlow 业务侧选择用的轻量结构
+type AvailableFlow struct {
+	FlowID   uint64 `json:"flow_id"`
+	FlowCode string `json:"flow_code"`
+	FlowName string `json:"flow_name"`
+	BizType  string `json:"biz_type"`
+}
+
+// ListAvailableFlows 按 bizType + 用户部门 过滤“当前可用”审批流。
+// 直接查询 flow 表中 biz_type 匹配且 status=1 未删除的流程。
+// 租户侧额外按 apply_dept_ids 部门过滤。
+// 平台侧（scope=2）忽略部门过滤（因平台 flow 无 apply_dept_ids）。
+func ListAvailableFlows(scope int8, tid uint64, bizType string, userOrgID uint64) ([]AvailableFlow, error) {
+	// 租户侧预计算一次当前用户组织的“祖先链”（含自身），选中上级部门或公司均命中
+	var path []uint64
+	if scope == models.ApprovalScopeTenant && userOrgID > 0 {
+		path = buildOrgPath(tid, userOrgID)
+	}
+	out := make([]AvailableFlow, 0)
+	if scope == models.ApprovalScopePlatform {
+		var rows []models.PlatformApprovalFlow
+		_, _ = models.Orm.QueryTable(new(models.PlatformApprovalFlow)).
+			Filter("biz_type", bizType).Filter("is_deleted", 0).Filter("status", 1).
+			OrderBy("id").All(&rows)
+		for _, f := range rows {
+			out = append(out, AvailableFlow{FlowID: f.ID, FlowCode: f.FlowCode, FlowName: f.FlowName, BizType: f.BizType})
+		}
+		return out, nil
+	}
+	var rows []models.TenantApprovalFlow
+	_, _ = models.Orm.QueryTable(new(models.TenantApprovalFlow)).
+		Filter("tid", tid).Filter("biz_type", bizType).Filter("is_deleted", 0).Filter("status", 1).
+		OrderBy("id").All(&rows)
+	for _, f := range rows {
+		if !deptMatch(f.ApplyDeptIDs, path) {
+			continue
+		}
+		out = append(out, AvailableFlow{FlowID: f.ID, FlowCode: f.FlowCode, FlowName: f.FlowName, BizType: f.BizType})
+	}
+	return out, nil
+}
+
+// deptMatch csv 空视为全公司通用；否则与 path (包含自身与祖先部门ID) 任一命中即命中。
+func deptMatch(csv string, path []uint64) bool {
+	csv = strings.TrimSpace(csv)
+	if csv == "" {
+		return true
+	}
+	if len(path) == 0 {
+		return false
+	}
+	inPath := make(map[uint64]bool, len(path))
+	for _, id := range path {
+		inPath[id] = true
+	}
+	for _, part := range strings.Split(csv, ",") {
+		if v, err := strconv.ParseUint(strings.TrimSpace(part), 10, 64); err == nil && inPath[v] {
+			return true
+		}
+	}
+	return false
+}
+
+// buildOrgPath 从当前部门沿 parent_id 向上追到根，返回含自身的 ID 链（环保护）
+func buildOrgPath(tid, orgID uint64) []uint64 {
+	if orgID == 0 {
+		return nil
+	}
+	var all []models.BackendOrganization
+	_, _ = models.Orm.QueryTable(new(models.BackendOrganization)).
+		Filter("tid", tid).Filter("delete_time__isnull", true).
+		All(&all, "id", "parent_id")
+	parent := make(map[uint64]uint64, len(all))
+	for _, o := range all {
+		parent[o.ID] = o.ParentID
+	}
+	out := []uint64{orgID}
+	seen := map[uint64]bool{orgID: true}
+	cur := orgID
+	for {
+		p, ok := parent[cur]
+		if !ok || p == 0 || seen[p] {
+			break
+		}
+		out = append(out, p)
+		seen[p] = true
+		cur = p
+	}
+	return out
+}
+
 // ============================ 运行时：提交 ============================
 
 // Submit 提交单据进入审批，创建实例并按图展开首个可执行节点的任务。
@@ -614,7 +707,8 @@ func Submit(in SubmitInput) (uint64, error) {
 
 	start := flow.ByKey[flow.StartKey]
 	hasApproval, firstApprovalName, firstApprovalKey := anyApprovalNode(flow)
-	node, approvers := nextExecutable(flow, in.FormData, start, in)
+	notifyFn := func(n *Node) { fireNotifyTasks(uint64(instID), in, n) }
+	node, approvers := nextExecutable(flow, in.FormData, start, in, notifyFn)
 	if node == nil {
 		// 无可执行审批节点
 		if hasApproval {
@@ -647,8 +741,9 @@ func anyApprovalNode(flow *Flow) (bool, string, string) {
 	return false, "", ""
 }
 
-// advanceFrom 从 cur 沿出边前进，遇条件网关求值选路，返回首个审批节点（nil 表示到终点）
-func advanceFrom(flow *Flow, formData map[string]interface{}, cur *Node) *Node {
+// advanceFrom 从 cur 沿出边前进，遇条件网关求值选路，返回首个审批节点（nil 表示到终点）。
+// onNotify 可选回调：当路径经过通知节点时触发，由调用方负责创建通知任务。
+func advanceFrom(flow *Flow, formData map[string]interface{}, cur *Node, onNotify ...func(*Node)) *Node {
 	visited := make(map[string]bool)
 	node := pickNext(flow, formData, cur)
 	for node != nil {
@@ -661,6 +756,11 @@ func advanceFrom(flow *Flow, formData map[string]interface{}, cur *Node) *Node {
 			return node
 		case models.ApprovalNodeEnd:
 			return nil
+		case models.ApprovalNodeNotify:
+			if len(onNotify) > 0 && onNotify[0] != nil {
+				onNotify[0](node)
+			}
+			node = pickNext(flow, formData, node)
 		default: // start / condition：继续向后
 			node = pickNext(flow, formData, node)
 		}
@@ -700,8 +800,9 @@ func pickNext(flow *Flow, formData map[string]interface{}, node *Node) *Node {
 }
 
 // nextExecutable 沿图找到下一个「有有效审批人」的审批节点；无人审批节点自动跳过
-func nextExecutable(flow *Flow, formData map[string]interface{}, cur *Node, in SubmitInput) (*Node, []Approver) {
-	node := advanceFrom(flow, formData, cur)
+// nextExecutable 获取下一个可执行审批节点及其审批人（跳过通知节点并通过 onNotify 回调触发）
+func nextExecutable(flow *Flow, formData map[string]interface{}, cur *Node, in SubmitInput, onNotify ...func(*Node)) (*Node, []Approver) {
+	node := advanceFrom(flow, formData, cur, onNotify...)
 	visited := make(map[string]bool)
 	for node != nil {
 		if visited[node.NodeKey] {
@@ -715,7 +816,7 @@ func nextExecutable(flow *Flow, formData map[string]interface{}, cur *Node, in S
 				return node, approvers
 			}
 		}
-		node = advanceFrom(flow, formData, node)
+		node = advanceFrom(flow, formData, node, onNotify...)
 	}
 	return nil, nil
 }
@@ -792,6 +893,34 @@ func createTasks(instID uint64, in SubmitInput, node Node, approvers []Approver)
 	return err
 }
 
+// fireNotifyTasks 为通知节点创建已读通知任务（不阻塞流程）
+func fireNotifyTasks(instID uint64, in SubmitInput, notifyNode *Node) {
+	recipients, _ := resolveApprovers(in.Scope, *notifyNode, in)
+	recipients = dedupeApprovers(recipients)
+	if len(recipients) == 0 {
+		return
+	}
+	now := time.Now()
+	tasks := make([]models.ApprovalTask, 0, len(recipients))
+	for _, r := range recipients {
+		tasks = append(tasks, models.ApprovalTask{
+			InstanceID:   instID,
+			Scope:        in.Scope,
+			Tid:          in.Tid,
+			BizType:      in.BizType,
+			BizID:        in.BizID,
+			NodeKey:      notifyNode.NodeKey,
+			NodeName:     notifyNode.NodeName,
+			Sort:         notifyNode.Sort,
+			ApproverID:   r.ID,
+			ApproverName: r.Name,
+			Status:       models.ApprovalTaskNotified,
+			FinishTime:   &now,
+		})
+	}
+	_, _ = models.Orm.InsertMulti(len(tasks), tasks)
+}
+
 // finishInstance 结束实例
 func finishInstance(instID uint64, status int8) {
 	now := time.Now()
@@ -947,7 +1076,8 @@ func advance(instID uint64, currentKey string, in ApproveInput) (*ApproveResult,
 	formData := instanceFormData(&inst)
 	si := submitFromInstance(&inst, formData)
 	cur := flow.ByKey[currentKey]
-	node, approvers := nextExecutable(flow, formData, cur, si)
+	notifyFn := func(n *Node) { fireNotifyTasks(instID, si, n) }
+	node, approvers := nextExecutable(flow, formData, cur, si, notifyFn)
 	if node == nil {
 		finishInstance(instID, models.ApprovalInstanceApproved)
 		return &ApproveResult{
diff --git a/platform/src/api/approval.js b/platform/src/api/approval.js
index 31a36d3..e5172ac 100644
--- a/platform/src/api/approval.js
+++ b/platform/src/api/approval.js
@@ -60,3 +60,8 @@ export function getApprovalFlowPick(params) {
     params
   })
 }
+
+// 业务侧发起前拉可用流
+export function getAvailableFlows(params) {
+  return request({ url: '/platform/approval/flow/available', method: 'get', params })
+}
diff --git a/platform/src/components/approval/FlowCanvas.vue b/platform/src/components/approval/FlowCanvas.vue
index cec2b43..9d6db68 100644
--- a/platform/src/components/approval/FlowCanvas.vue
+++ b/platform/src/components/approval/FlowCanvas.vue
@@ -3,19 +3,29 @@
     <!-- 左侧节点面板 -->
     <div class="palette">
       <div class="palette-title">节点面板</div>
-      <div
-        v-for="p in palette"
-        :key="p.type"
-        class="palette-item"
-        :class="'pal-' + p.cls"
-        draggable="true"
-        @dragstart="onDragStart($event, p)"
-      >
-        <el-icon class="pal-icon"><component :is="p.icon" /></el-icon>
-        <span>{{ p.label }}</span>
+      <div class="palette-list">
+        <div
+          v-for="p in palette"
+          :key="p.type"
+          class="palette-item"
+          :class="'pal-' + p.cls"
+          draggable="true"
+          :title="'点击或拖拽添加「' + p.label + '」'"
+          @dragstart="onDragStart($event, p)"
+          @dragend="onDragEnd"
+          @click="onPaletteAdd(p)"
+        >
+          <span class="pal-shape-wrap">
+            <span class="pal-shape" :class="'shape-' + p.cls"></span>
+          </span>
+          <div class="pal-info">
+            <div class="pal-label">{{ p.label }}</div>
+            <div class="pal-desc">{{ p.desc }}</div>
+          </div>
+        </div>
       </div>
       <div class="palette-tip">
-        拖入画布添加节点；从节点右侧圆点拖到目标节点连线；双击节点配置；点击连线设置分支条件。
+        点击或拖拽即可添加节点；<br />从右侧小圆点拖到目标节点连线；<br />双击节点配置 · 点击连线设条件。
       </div>
     </div>
 
@@ -31,7 +41,33 @@
         @edge-click="onEdgeClick"
       >
         <template #node-flow="nodeProps">
-          <div class="fn" :class="'fn-' + nodeProps.data.cls">
+          <!-- 判断节点：菱形 -->
+          <div v-if="nodeProps.data.cls === 'decision'" class="fn-diamond">
+            <Handle type="target" :position="Position.Left" />
+            <div class="fn-diamond-shape"></div>
+            <div class="fn-diamond-label">{{ nodeProps.data.name || '判断' }}</div>
+            <Handle type="source" :position="Position.Right" />
+          </div>
+          <!-- 开始 / 结束：胶囊 -->
+          <div
+            v-else-if="nodeProps.data.cls === 'start' || nodeProps.data.cls === 'end'"
+            class="fn-pill"
+            :class="'fn-pill-' + nodeProps.data.cls"
+          >
+            <Handle type="target" :position="Position.Left" />
+            <el-icon class="fn-pill-icon"><component :is="nodeProps.data.cls === 'start' ? VideoPlay : SwitchButton" /></el-icon>
+            <span>{{ nodeProps.data.name || (nodeProps.data.cls === 'start' ? '开始' : '结束') }}</span>
+            <Handle type="source" :position="Position.Right" />
+          </div>
+          <!-- 通知节点：圆形 -->
+          <div v-else-if="nodeProps.data.cls === 'notify'" class="fn-circle fn-circle-notify">
+            <Handle type="target" :position="Position.Left" />
+            <el-icon class="fn-circle-icon"><Bell /></el-icon>
+            <div class="fn-circle-label">{{ nodeProps.data.name || '通知' }}</div>
+            <Handle type="source" :position="Position.Right" />
+          </div>
+          <!-- 审批节点：矩形卡片 -->
+          <div v-else class="fn" :class="'fn-' + nodeProps.data.cls">
             <Handle type="target" :position="Position.Left" />
             <div class="fn-badge">{{ typeShort(nodeProps.data.nodeType) }}</div>
             <div class="fn-title">{{ nodeProps.data.name || '未命名' }}</div>
@@ -105,8 +141,26 @@
           </el-form-item>
         </template>
         <el-form-item v-else-if="nodeForm.nodeType === 4" label=" ">
-          <span class="hint">条件网关：拖出多条连线，点击连线分别填写分支条件（留空为默认分支）。</span>
+          <span class="hint">判断节点：拖出多条连线，点击连线分别填写分支条件（留空为默认分支）。运行期按条件命中其中一条分支。</span>
         </el-form-item>
+        <template v-if="nodeForm.nodeType === 5">
+          <el-form-item label="通知类型">
+            <el-radio-group v-model="nodeForm.approverType" @change="onApproverTypeChange">
+              <el-radio v-for="t in approverTypes" :key="t.value" :value="t.value">{{ t.label }}</el-radio>
+            </el-radio-group>
+          </el-form-item>
+          <el-form-item v-if="currentApproverMeta && currentApproverMeta.needsSelection" :label="currentApproverMeta.selectLabel" required>
+            <el-select v-model="nodeForm.approverIds" multiple filterable style="width: 100%" :placeholder="'选择' + currentApproverMeta.selectLabel + '（可多选）'">
+              <el-option v-for="opt in currentPool" :key="opt.id" :label="opt.name" :value="opt.id" />
+            </el-select>
+          </el-form-item>
+          <el-form-item v-else label=" ">
+            <span class="hint">该类型运行期自动定位通知对象，无需指定</span>
+          </el-form-item>
+          <el-form-item label=" ">
+            <span class="hint">通知节点不阻塞流程，仅发送消息给指定人员，流程自动继续往下走。</span>
+          </el-form-item>
+        </template>
       </el-form>
       <template #footer>
         <el-button type="danger" plain :disabled="!editingNodeId" @click="removeCurrentNode">删除节点</el-button>
@@ -123,7 +177,7 @@
           <el-input v-model="edgeForm.condition" placeholder="如 amount>5000 且 dept=='研发' ；留空为默认分支" />
         </el-form-item>
         <el-form-item label=" ">
-          <span class="hint">支持 &gt; &gt;= &lt; &lt;= == != 与 &amp;&amp; / ||。条件仅在“条件网关”的出边上生效。</span>
+          <span class="hint">支持 &gt; &gt;= &lt; &lt;= == != 与 &amp;&amp; / ||。条件仅在“判断节点”的出边上生效。</span>
         </el-form-item>
       </el-form>
       <template #footer>
@@ -139,7 +193,7 @@
 <script setup lang="ts">
 import { ref, reactive, computed, watch, nextTick } from 'vue'
 import { ElMessage } from 'element-plus'
-import { VideoPlay, User, Share, SwitchButton, QuestionFilled } from '@element-plus/icons-vue'
+import { VideoPlay, User, Share, SwitchButton, QuestionFilled, Bell } from '@element-plus/icons-vue'
 import { VueFlow, Handle, Position, MarkerType, useVueFlow } from '@vue-flow/core'
 import { Background } from '@vue-flow/background'
 import { Controls } from '@vue-flow/controls'
@@ -164,20 +218,21 @@ const { screenToFlowCoordinate, onConnect } = useVueFlow()
 let keySeq = 1
 const nextKey = () => `n${Date.now().toString(36)}${(keySeq++).toString(36)}`
 
-const NODE_TYPE = { START: 1, APPROVAL: 2, END: 3, CONDITION: 4 }
+const NODE_TYPE = { START: 1, APPROVAL: 2, END: 3, DECISION: 4, NOTIFY: 5 }
 
 const palette = [
-  { type: NODE_TYPE.START, cls: 'start', label: '开始', icon: VideoPlay },
-  { type: NODE_TYPE.APPROVAL, cls: 'approval', label: '审批节点', icon: User },
-  { type: NODE_TYPE.CONDITION, cls: 'condition', label: '条件网关', icon: Share },
-  { type: NODE_TYPE.END, cls: 'end', label: '结束', icon: SwitchButton },
+  { type: NODE_TYPE.START, cls: 'start', label: '开始', desc: '流程唯一入口', icon: VideoPlay },
+  { type: NODE_TYPE.APPROVAL, cls: 'approval', label: '审批节点', desc: '指定审批人处理', icon: User },
+  { type: NODE_TYPE.DECISION, cls: 'decision', label: '判断节点', desc: '按条件分支路由', icon: Share },
+  { type: NODE_TYPE.NOTIFY, cls: 'notify', label: '通知节点', desc: '通知不阻塞流程', icon: Bell },
+  { type: NODE_TYPE.END, cls: 'end', label: '结束', desc: '流程出口', icon: SwitchButton },
 ]
 
 const clsOf = (t: number) =>
-  t === NODE_TYPE.START ? 'start' : t === NODE_TYPE.END ? 'end' : t === NODE_TYPE.CONDITION ? 'condition' : 'approval'
+  t === NODE_TYPE.START ? 'start' : t === NODE_TYPE.END ? 'end' : t === NODE_TYPE.DECISION ? 'decision' : t === NODE_TYPE.NOTIFY ? 'notify' : 'approval'
 
 const typeShort = (t: number) =>
-  t === NODE_TYPE.START ? '开始' : t === NODE_TYPE.END ? '结束' : t === NODE_TYPE.CONDITION ? '条件' : '审批'
+  t === NODE_TYPE.START ? '开始' : t === NODE_TYPE.END ? '结束' : t === NODE_TYPE.DECISION ? '判断' : t === NODE_TYPE.NOTIFY ? '通知' : '审批'
 
 const approverTypeLabel = (t: number) => {
   const m = (props.approverTypes as any[]).find((x) => x.value === t)
@@ -193,7 +248,8 @@ function approverSummary(node: any) {
     const mode = node.multiMode === 2 ? '会签' : '或签'
     return `${approverTypeLabel(node.approverType)}：${names.length ? names.join('、') : '未选'}（${mode}）`
   }
-  if (node.nodeType === NODE_TYPE.CONDITION) return '按分支条件路由'
+  if (node.nodeType === NODE_TYPE.DECISION) return '按分支条件路由'
+  if (node.nodeType === NODE_TYPE.NOTIFY) return '发送通知给指定人员'
   return ''
 }
 
@@ -258,8 +314,14 @@ watch(() => props.modelValue, reload, { deep: false, immediate: true })
 
 // ==================== 拖拽添加 ====================
 let dragType = 0
+let dragging = false
 function onDragStart(_evt: DragEvent, p: any) {
   dragType = p.type
+  dragging = true
+}
+
+function onDragEnd() {
+  setTimeout(() => { dragging = false; dragType = 0 }, 0)
 }
 
 function onDrop(evt: DragEvent) {
@@ -270,8 +332,23 @@ function onDrop(evt: DragEvent) {
   dragType = 0
 }
 
+// 单击 palette 项：自动在画布中心附近新增节点（小量抖动避免重叠）
+function onPaletteAdd(p: any) {
+  if (dragging) return
+  if (!canvasWrap.value) return
+  const rect = canvasWrap.value.getBoundingClientRect()
+  const base = screenToFlowCoordinate({
+    x: rect.left + rect.width / 2,
+    y: rect.top + rect.height / 2,
+  })
+  const jitter = (nodes.value.length % 6) * 26
+  const position = { x: base.x - 80 + jitter, y: base.y - 40 + jitter }
+  const data = makeNodeData({ node_type: p.type, node_name: defaultName(p.type) })
+  nodes.value.push({ id: nextKey(), type: 'flow', position, data })
+}
+
 function defaultName(t: number) {
-  return t === NODE_TYPE.START ? '开始' : t === NODE_TYPE.END ? '结束' : t === NODE_TYPE.CONDITION ? '条件网关' : '审批节点'
+  return t === NODE_TYPE.START ? '开始' : t === NODE_TYPE.END ? '结束' : t === NODE_TYPE.DECISION ? '判断节点' : t === NODE_TYPE.NOTIFY ? '通知节点' : '审批节点'
 }
 
 // ==================== 连线 ====================
@@ -303,7 +380,8 @@ const nodeForm = reactive<any>({
 })
 
 const nodeDialogTitle = computed(() => {
-  if (nodeForm.nodeType === NODE_TYPE.CONDITION) return '配置条件网关'
+  if (nodeForm.nodeType === NODE_TYPE.DECISION) return '配置判断节点'
+  if (nodeForm.nodeType === NODE_TYPE.NOTIFY) return '配置通知节点'
   if (nodeForm.nodeType === NODE_TYPE.APPROVAL) return '配置审批节点'
   return '配置节点'
 })
@@ -348,8 +426,8 @@ function confirmNode() {
     return
   }
   const meta = currentApproverMeta.value
-  if (nodeForm.nodeType === NODE_TYPE.APPROVAL && meta && meta.needsSelection && !(nodeForm.approverIds || []).length) {
-    ElMessage.warning('请选择审批人')
+  if ((nodeForm.nodeType === NODE_TYPE.APPROVAL || nodeForm.nodeType === NODE_TYPE.NOTIFY) && meta && meta.needsSelection && !(nodeForm.approverIds || []).length) {
+    ElMessage.warning(nodeForm.nodeType === NODE_TYPE.NOTIFY ? '请选择通知对象' : '请选择审批人')
     return
   }
   node.data = makeNodeData({
@@ -440,49 +518,156 @@ defineExpose({ serialize, fitView })
 }
 
 .palette {
-  width: 160px;
-  flex: 0 0 160px;
-  padding: 12px;
-  background: #fafafa;
+  width: 220px;
+  flex: 0 0 220px;
+  padding: 14px;
+  background: #fafbfc;
   border-right: 1px solid #e4e7ed;
+  overflow-y: auto;
 
   .palette-title {
+    display: flex;
+    align-items: center;
     font-weight: 600;
-    margin-bottom: 10px;
+    margin-bottom: 12px;
     font-size: 14px;
+    color: #303133;
+    letter-spacing: 0.5px;
+
+    &::before {
+      content: '';
+      display: inline-block;
+      width: 3px;
+      height: 14px;
+      background: #409eff;
+      border-radius: 2px;
+      margin-right: 8px;
+    }
+  }
+
+  .palette-list {
+    display: flex;
+    flex-direction: column;
+    gap: 10px;
   }
 
   .palette-item {
     display: flex;
     align-items: center;
-    gap: 6px;
-    padding: 8px 10px;
-    margin-bottom: 8px;
-    border-radius: 6px;
+    gap: 12px;
+    padding: 12px 14px;
+    min-height: 48px;
+    border-radius: 8px;
     border: 1px solid #dcdfe6;
     background: #fff;
     cursor: grab;
     font-size: 13px;
+    user-select: none;
+    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
 
     &:hover {
       border-color: #409eff;
+      background: #f5faff;
+      box-shadow: 0 3px 10px rgba(64, 158, 255, 0.15);
+      transform: translateY(-1px);
     }
 
-    .pal-icon {
-      font-size: 15px;
+    &:active {
+      cursor: grabbing;
+      transform: translateY(0);
+      box-shadow: 0 1px 4px rgba(64, 158, 255, 0.1);
+    }
+
+    .pal-shape-wrap {
+      flex: 0 0 26px;
+      width: 26px;
+      height: 26px;
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+    }
+
+    .pal-shape {
+      display: inline-block;
+    }
+
+    // 开始/结束：胶囊
+    .shape-start,
+    .shape-end {
+      width: 22px;
+      height: 11px;
+      border-radius: 999px;
+      background: #67c23a;
+    }
+    .shape-end {
+      background: #909399;
+    }
+
+    // 审批节点：矩形
+    .shape-approval {
+      width: 20px;
+      height: 15px;
+      border-radius: 3px;
+      background: #409eff;
+    }
+
+    // 判断节点：菱形（旋转方块）
+    .shape-decision {
+      width: 15px;
+      height: 15px;
+      transform: rotate(45deg);
+      border-radius: 2px;
+      background: #e6a23c;
+    }
+
+    // 通知节点：圆形
+    .shape-notify {
+      width: 17px;
+      height: 17px;
+      border-radius: 50%;
+      background: #9254de;
+    }
+
+    .pal-info {
+      flex: 1;
+      min-width: 0;
+      display: flex;
+      flex-direction: column;
+      gap: 2px;
+    }
+
+    .pal-label {
+      font-weight: 600;
+      color: #303133;
+      font-size: 13.5px;
+      line-height: 1.3;
+    }
+
+    .pal-desc {
+      color: #909399;
+      font-size: 11.5px;
+      line-height: 1.3;
+      overflow: hidden;
+      white-space: nowrap;
+      text-overflow: ellipsis;
     }
   }
 
   .pal-start { border-left: 3px solid #67c23a; }
   .pal-approval { border-left: 3px solid #409eff; }
-  .pal-condition { border-left: 3px solid #e6a23c; }
+  .pal-decision { border-left: 3px solid #e6a23c; }
+  .pal-notify { border-left: 3px solid #9254de; }
   .pal-end { border-left: 3px solid #909399; }
 
   .palette-tip {
-    margin-top: 10px;
-    font-size: 12px;
+    margin-top: 14px;
+    padding: 10px 12px;
+    font-size: 11.5px;
     color: #909399;
-    line-height: 1.5;
+    line-height: 1.7;
+    background: rgba(64, 158, 255, 0.05);
+    border: 1px dashed rgba(64, 158, 255, 0.2);
+    border-radius: 6px;
   }
 }
 
@@ -528,9 +713,105 @@ defineExpose({ serialize, fitView })
 
 .fn-start { border-top: 3px solid #67c23a; .fn-badge { background: #67c23a; } }
 .fn-approval { border-top: 3px solid #409eff; .fn-badge { background: #409eff; } }
-.fn-condition { border-top: 3px solid #e6a23c; .fn-badge { background: #e6a23c; } }
 .fn-end { border-top: 3px solid #909399; .fn-badge { background: #909399; } }
 
+// 开始 / 结束：胶囊
+.fn-pill {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  min-width: 90px;
+  padding: 8px 16px;
+  border-radius: 999px;
+  background: #fff;
+  border: 1px solid #dcdfe6;
+  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
+  font-size: 13px;
+  font-weight: 600;
+  color: #303133;
+
+  .fn-pill-icon {
+    font-size: 15px;
+  }
+}
+.fn-pill-start {
+  border-color: #67c23a;
+  color: #529b2e;
+  background: #f0f9eb;
+}
+.fn-pill-end {
+  border-color: #909399;
+  color: #73767a;
+  background: #f4f4f5;
+}
+
+// 判断节点：菱形
+.fn-diamond {
+  position: relative;
+  width: 120px;
+  height: 120px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+
+  .fn-diamond-shape {
+    position: absolute;
+    inset: 18px;
+    transform: rotate(45deg);
+    background: #fdf6ec;
+    border: 2px solid #e6a23c;
+    border-radius: 8px;
+    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
+  }
+
+  .fn-diamond-label {
+    position: relative;
+    z-index: 1;
+    font-size: 12px;
+    font-weight: 600;
+    color: #b88230;
+    text-align: center;
+    max-width: 80px;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+}
+
+// 通知节点：圆形
+.fn-circle {
+  position: relative;
+  width: 88px;
+  height: 88px;
+  border-radius: 50%;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 2px;
+  font-size: 12px;
+  font-weight: 600;
+  text-align: center;
+  background: #fff;
+  border: 2px solid transparent;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
+}
+.fn-circle-notify {
+  border-color: #d3adf7;
+  background: #f9f0ff;
+  color: #531dab;
+}
+.fn-circle-icon {
+  font-size: 16px;
+}
+.fn-circle-label {
+  max-width: 70px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  line-height: 1.2;
+}
+
 .hint {
   font-size: 12px;
   color: #909399;
diff --git a/platform/src/views/system/approval/index.vue b/platform/src/views/system/approval/index.vue
index d4ad691..dd2e250 100644
--- a/platform/src/views/system/approval/index.vue
+++ b/platform/src/views/system/approval/index.vue
@@ -34,7 +34,6 @@
             >
               <div class="flow-name">
                 {{ f.flow_name }}
-                <el-tag v-if="f.is_default === 1" size="small" type="success">默认</el-tag>
               </div>
               <div class="flow-code">{{ f.flow_code || '（保存后生成编号）' }}</div>
               <div class="flow-sub">
@@ -76,12 +75,6 @@
               <el-input v-model="current.description" type="textarea" :rows="2" placeholder="流程用途说明" />
             </el-form-item>
             <el-row :gutter="12">
-              <el-col :span="12">
-                <el-form-item label="设为默认">
-                  <el-switch v-model="current.is_default" :active-value="1" :inactive-value="0" />
-                  <span class="hint">同分类仅一条默认，新申请走默认流程</span>
-                </el-form-item>
-              </el-col>
               <el-col :span="12">
                 <el-form-item label="启用状态">
                   <el-switch v-model="current.status" :active-value="1" :inactive-value="0" />