diff --git a/web-admin/scripts/issue-26-fold-icon-and-archive-plan-no.test.ts b/web-admin/scripts/issue-26-fold-icon-and-archive-plan-no.test.ts
new file mode 100644
index 000000000..2858c7909
--- /dev/null
+++ b/web-admin/scripts/issue-26-fold-icon-and-archive-plan-no.test.ts
@@ -0,0 +1,36 @@
+/**
+ * #26 回归：
+ * 1) ArtSvgIcon 的 el-icon 不得带 Tailwind `inline`（生产 CSS 会覆盖 display）
+ * 2) 运输归档列展示含 planNo，且表格列受 isColumnVisible 控制
+ */
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readFileSync } from 'node:fs'
+import { dirname, join } from 'node:path'
+import { fileURLToPath } from 'node:url'
+import { parse } from '@vue/compiler-sfc'
+
+const root = join(dirname(fileURLToPath(import.meta.url)), '..')
+
+test('ArtSvgIcon: el-icon branch must not use Tailwind inline class', () => {
+  const src = readFileSync(join(root, 'src/components/core/base/art-svg-icon/index.vue'), 'utf8')
+  const { descriptor } = parse(src)
+  const template = descriptor.template?.content || ''
+  assert.match(template, /<el-icon\b[^>]*class="[^"]*art-svg-icon/)
+  assert.doesNotMatch(
+    template,
+    /<el-icon\b[^>]*class="[^"]*\binline\b/,
+    'el-icon must not include Tailwind inline (breaks display:inline-flex in prod CSS order)'
+  )
+})
+
+test('plan-archive: planNo is in column defs and table visibility gate', () => {
+  const src = readFileSync(join(root, 'src/views/pl/plan-archive/index.vue'), 'utf8')
+  assert.match(src, /prop:\s*'planNo',\s*label:\s*'计划编号'/)
+  assert.match(src, /pl-plan-archive-list-columns-v17/)
+  assert.match(
+    src,
+    /v-if="isColumnVisible\('planNo'\)"[\s\S]*?prop="planNo"/,
+    'planNo table column must be gated by isColumnVisible'
+  )
+})
diff --git a/web-admin/src/components/core/base/art-svg-icon/index.vue b/web-admin/src/components/core/base/art-svg-icon/index.vue
index 685d661dc..8241d3c65 100644
--- a/web-admin/src/components/core/base/art-svg-icon/index.vue
+++ b/web-admin/src/components/core/base/art-svg-icon/index.vue
@@ -1,6 +1,8 @@
 <!-- 图标组件：支持 Element Plus 图标（无 : 前缀）与 Iconify 图标（含 : 前缀） -->
 <template>
-  <el-icon v-if="epIcon" v-bind="iconAttrs" class="art-svg-icon inline">
+  <!-- el-icon 勿加 Tailwind `inline`：生产 CSS 中 `.inline{display:inline}` 会覆盖
+       `.el-icon{display:inline-flex}`，导致 Fold 等图标在打包后不可见 -->
+  <el-icon v-if="epIcon" v-bind="iconAttrs" class="art-svg-icon">
     <component :is="epIcon" />
   </el-icon>
   <Icon v-else-if="icon" :icon="icon" v-bind="iconAttrs" class="art-svg-icon inline" />
diff --git a/web-admin/src/views/pl/plan-archive/index.vue b/web-admin/src/views/pl/plan-archive/index.vue
index c49e9f885..3d6f49836 100644
--- a/web-admin/src/views/pl/plan-archive/index.vue
+++ b/web-admin/src/views/pl/plan-archive/index.vue
@@ -86,7 +86,13 @@
               header-align="center"
               :index="getDisplayRowIndex"
             />
-            <el-table-column prop="planNo" label="计划编号" min-width="180" show-overflow-tooltip>
+            <el-table-column
+              v-if="isColumnVisible('planNo')"
+              prop="planNo"
+              label="计划编号"
+              min-width="180"
+              show-overflow-tooltip
+            >
             <template #header>
               <div class="col-header-with-filter">
                 <span class="col-header-with-filter__label">计划编号</span>
@@ -1075,6 +1081,7 @@ const planList = ref<Plan[]>([])
 const PRICE_COLUMN_PROPS = new Set(['unitPrice', 'amount'])
 
 const allListColumnDefs = [
+  { prop: 'planNo', label: '计划编号' },
   { prop: 'planDate', label: '计划日期' },
   { prop: 'deliveryTimes', label: '送货时间' },
   { prop: 'archiveStatus', label: '归档状态' },
@@ -1116,7 +1123,7 @@ const {
   isIndeterminate,
   isColumnVisible,
   resetToDefault
-} = usePersistedListColumns('pl-plan-archive-list-columns-v16', allListColumnDefs)
+} = usePersistedListColumns('pl-plan-archive-list-columns-v17', allListColumnDefs)
 
 const {
   filters,
@@ -1165,7 +1172,7 @@ function enumOptionsFor(prop: string) {
 }
 
 const visibleFilterProps = computed(() => {
-  const props: string[] = ['planNo']
+  const props: string[] = []
   for (const def of listColumnDefs.value) {
     if (isColumnVisible(def.prop)) props.push(def.prop)
   }
@@ -1475,10 +1482,10 @@ const planArchiveExportColumns = computed(() => {
     const field = PLAN_ARCHIVE_EXPORT_COLUMN_FIELD_MAP[col] || col
     if (!cols.includes(field)) cols.push(field)
   }
-  if (!cols.includes('planNo')) cols.unshift('planNo')
+  if (isColumnVisible('planNo') && !cols.includes('planNo')) cols.unshift('planNo')
   const planNoIdx = cols.indexOf('planNo')
   if (!cols.includes('stopSegment')) {
-    cols.splice(planNoIdx + 1, 0, 'stopSegment')
+    cols.splice((planNoIdx >= 0 ? planNoIdx : -1) + 1, 0, 'stopSegment')
   }
   if (!cols.includes('rowNo')) cols.unshift('rowNo')
   const modelIdx = cols.indexOf('model')