diff --git a/src/views/modules/sampleTracking/projectProofTracking.vue b/src/views/modules/sampleTracking/projectProofTracking.vue
index d8a8f4f..e4fd410 100644
--- a/src/views/modules/sampleTracking/projectProofTracking.vue
+++ b/src/views/modules/sampleTracking/projectProofTracking.vue
@@ -66,6 +66,11 @@
           <el-button type="success" plain :loading="syncProofLoading" @click="syncProofToNpi()">同步打样到NPI</el-button>
           <el-button type="info" v-if="isAuth('833001005:set')" plain @click="openBuProcessConfigDialog">事业部进度设置</el-button>
           <el-button type="info" v-if="isAuth('833001005:set2')" plain @click="openDefaultProcessConfigDialog">默认进度设置</el-button>
+          <el-tooltip style="margin-top: 2px;margin-left: 10px"
+            content="已完成后，双击日期选择框可回退为未完成"
+            placement="top">
+            <i class="el-icon-question default-process-tip-icon"></i>
+          </el-tooltip>
         </el-row>
       </el-form-item>
     </el-form>
@@ -118,6 +123,9 @@
           <span v-else-if="item.columnProp === 'projectManager'">
             {{ getTrackingRoleDisplayValue(scope.row, 'projectManagerName', 'projectManager') }}
           </span>
+          <span v-else-if="item.columnProp === 'pic'">
+            {{ getTrackingRoleDisplayValue(scope.row, 'projectOwnerName', 'pic') }}
+          </span>
           <span v-else>{{ getTrackingColumnDisplayValue(scope.row, item.columnProp) }}</span>
         </template>
       </el-table-column>
@@ -159,15 +167,17 @@
                 placeholder=""
                 style="width: 122px"
                 @change="handleProcessDateChange(scope.row, item, $event)"
+                @dblclick.native.stop="handleProcessDateDoubleClick(scope.row, item)"
               />
               <el-button
+                v-if="!isProcessStatusComplete(scope.row, item)"
                 class="process-complete-btn"
                 type="success"
                 size="mini"
-                plain v-show="!isProcessStatusComplete(scope.row, item)"
-                :disabled="isProcessStatusComplete(scope.row, item)"
+                plain
+                title="标记为已完成"
                 @click.stop="markProcessComplete(scope.row, item)"
-              >√</el-button>
+              >✓</el-button>
             </div>
           </div>
           <div v-else class="process-cell process-cell--masked"></div>
@@ -1299,6 +1309,7 @@ export default {
         proofingStatus: ''
       },
       trackingColumnList: cloneDefaultTrackingColumns(),
+      hasUserTrackingColumnConfig: false,
       processColumns: cloneDefaultProcessColumns(),
       processCodeLabelMap: buildProcessCodeLabelMapByRows(cloneDefaultProcessColumns()),
       buProcessConfigDialogVisible: false,
@@ -1483,9 +1494,11 @@ export default {
   },
   computed: {
     visibleTrackingColumns () {
-      const sourceColumns = Array.isArray(this.trackingColumnList) && this.trackingColumnList.length > 0
-        ? this.trackingColumnList
-        : this.buildDefaultTrackingColumns()
+      const sourceColumns = this.hasUserTrackingColumnConfig
+        ? (Array.isArray(this.trackingColumnList) ? this.trackingColumnList : [])
+        : ((Array.isArray(this.trackingColumnList) && this.trackingColumnList.length > 0)
+            ? this.trackingColumnList
+            : this.buildDefaultTrackingColumns())
       return sourceColumns.filter(item => this.isTrackingColumnVisible(item))
     },
     visibleProcessColumns () {
@@ -1571,7 +1584,8 @@ export default {
     normalizeTrackingColumnItem (item, fallbackItem) {
       const defaultItem = fallbackItem || {}
       const mergedItem = Object.assign({}, defaultItem, item || {})
-      const columnProp = mergedItem.columnProp == null ? '' : String(mergedItem.columnProp).trim()
+      const rawColumnProp = mergedItem.columnProp == null ? '' : String(mergedItem.columnProp).trim()
+      const columnProp = rawColumnProp.toLowerCase() === 'pic' ? 'pic' : rawColumnProp
       const normalizedLabel = mergedItem.columnLabel == null ? '' : String(mergedItem.columnLabel).trim()
       return Object.assign({}, mergedItem, {
         columnProp: columnProp,
@@ -1585,7 +1599,7 @@ export default {
         columnHidden: this.normalizeTrackingColumnBoolean(mergedItem.columnHidden, false)
       })
     },
-    normalizeTrackingColumns (rows) {
+    normalizeTrackingColumns (rows, appendDefaultColumns) {
       const defaultColumns = this.buildDefaultTrackingColumns()
       const defaultColumnMap = {}
       defaultColumns.forEach(item => {
@@ -1603,6 +1617,9 @@ export default {
           mergedRows.push(this.normalizeTrackingColumnItem(item, defaultColumnMap[columnProp]))
         })
       }
+      if (appendDefaultColumns !== true) {
+        return mergedRows
+      }
       // 用户旧配置可能缺少新加列，这里按系统默认顺序补齐，避免新增列永远看不到。
       defaultColumns.forEach((defaultItem, defaultIndex) => {
         if (usedColumnPropMap[defaultItem.columnProp]) {
@@ -1640,12 +1657,14 @@ export default {
       }
       return getTableDefaultListLanguage(queryTable).then(({ data }) => {
         const rows = data && Array.isArray(data.rows) ? data.rows : []
+        this.hasUserTrackingColumnConfig = false
         this.trackingColumnList = rows.length > 0
-          ? this.normalizeTrackingColumns(rows)
+          ? this.normalizeTrackingColumns(rows, true)
           : this.buildDefaultTrackingColumns()
         this.refreshTrackingTableLayout()
         return this.trackingColumnList
       }).catch(() => {
+        this.hasUserTrackingColumnConfig = false
         this.trackingColumnList = this.buildDefaultTrackingColumns()
         this.refreshTrackingTableLayout()
         return this.trackingColumnList
@@ -1663,12 +1682,14 @@ export default {
       return getTableUserListLanguage(queryTableUser).then(({ data }) => {
         const rows = data && Array.isArray(data.rows) ? data.rows : []
         if (rows.length > 0) {
-          this.trackingColumnList = this.normalizeTrackingColumns(rows)
+          this.hasUserTrackingColumnConfig = true
+          this.trackingColumnList = this.normalizeTrackingColumns(rows, false)
           this.refreshTrackingTableLayout()
           return this.trackingColumnList
         }
         return this.loadTrackingDefaultColumns(tableId)
       }).catch(() => {
+        this.hasUserTrackingColumnConfig = false
         this.trackingColumnList = this.buildDefaultTrackingColumns()
         this.refreshTrackingTableLayout()
         return this.trackingColumnList
@@ -4484,6 +4505,31 @@ export default {
         remark: '表格一键完成'
       }, false, '工序已标记为完成')
     },
+    handleProcessDateDoubleClick (row, processCol) {
+      if (!row || !processCol || !this.isProcessStatusComplete(row, processCol)) {
+        return
+      }
+      // 按页面交互约定：已完成工序允许双击日期输入框进行回退。
+      this.rollbackProcessComplete(row, processCol)
+    },
+    rollbackProcessComplete (row, processCol) {
+      if (!row || !processCol || !this.isProcessStatusComplete(row, processCol)) {
+        return
+      }
+      const currentActualDate = this.formatDate(row[processCol.actualField])
+      this.$confirm('确定回退该工序状态为“未完成”吗？', '提示', {
+        confirmButtonText: '确定',
+        cancelButtonText: '取消',
+        type: 'warning'
+      }).then(() => {
+        // 仅回退状态，保留当前实际完成日期，避免误回退时丢失用户已维护的日期信息。
+        this.updateProcessFromTable(row, processCol, {
+          status: '未完成',
+          actualDate: currentActualDate,
+          remark: '表格一键回退为未完成'
+        }, false, '工序状态已回退为未完成')
+      }).catch(() => {})
+    },
     updateProcessFromTable (row, processCol, processData, silentSuccess, successMsg) {
       if (!row || !processCol || !row.trackingId) {
         this.$message.error('工序参数缺失')