diff --git a/frontend/src/composables/useColumnPreferences.js b/frontend/src/composables/useColumnPreferences.js
new file mode 100644
index 0000000..760e06e
--- /dev/null
+++ b/frontend/src/composables/useColumnPreferences.js
@@ -0,0 +1,54 @@
+import { ref } from 'vue'
+
+export function useColumnPreferences(storageKey) {
+  const hidden = ref([])
+
+  const load = () => {
+    try {
+      const raw = localStorage.getItem(storageKey)
+      if (!raw) return
+      const parsed = JSON.parse(raw)
+      if (Array.isArray(parsed)) {
+        hidden.value = parsed.filter((x) => typeof x === 'string')
+      }
+    } catch {
+      hidden.value = []
+    }
+  }
+
+  const save = () => {
+    try {
+      localStorage.setItem(storageKey, JSON.stringify(hidden.value))
+    } catch {
+      /* quota / private mode — ignore */
+    }
+  }
+
+  const isVisible = (key) => !hidden.value.includes(key)
+
+  const toggle = (key) => {
+    const i = hidden.value.indexOf(key)
+    if (i >= 0) hidden.value.splice(i, 1)
+    else hidden.value.push(key)
+    save()
+  }
+
+  const setGroupVisible = (groupKeys, visible) => {
+    if (visible) {
+      hidden.value = hidden.value.filter((k) => !groupKeys.includes(k))
+    } else {
+      const set = new Set(hidden.value)
+      groupKeys.forEach((k) => set.add(k))
+      hidden.value = [...set]
+    }
+    save()
+  }
+
+  const reset = () => {
+    hidden.value = []
+    save()
+  }
+
+  load()
+  return { hidden, isVisible, toggle, setGroupVisible, reset }
+}
diff --git a/frontend/src/views/material/materialColumns.js b/frontend/src/views/material/materialColumns.js
new file mode 100644
index 0000000..4b67a4b
--- /dev/null
+++ b/frontend/src/views/material/materialColumns.js
@@ -0,0 +1,52 @@
+export const COLUMN_GROUPS = [
+  { key: 'material', label: '材料信息' },
+  { key: 'supplier', label: '品牌与供应商' },
+  { key: 'case', label: '案例信息' },
+]
+
+const fmt = (v) => (v === null || v === undefined || v === '' ? '-' : v)
+
+export const MATERIAL_COLUMNS = [
+  // ==== A. 材料信息 ====
+  { group: 'material', key: 'name', label: '材料名称', minWidth: 180, showOverflowTooltip: true },
+  { group: 'material', key: 'major_category_display', label: '材料大类', width: 100 },
+  { group: 'material', key: 'material_category', label: '细分种类', minWidth: 140, showOverflowTooltip: true },
+  { group: 'material', key: 'material_subcategory', label: '材料子类', minWidth: 140, showOverflowTooltip: true },
+  { group: 'material', key: 'stage_display', label: '阶段', width: 130, showOverflowTooltip: true },
+  { group: 'material', key: 'importance_level_display', label: '重要等级', width: 110 },
+  { group: 'material', key: 'status_display', label: '状态', width: 100 },
+  { group: 'material', key: 'cost_compare', label: '成本比较(%)', width: 120, formatter: (r) => fmt(r.cost_compare) },
+  { group: 'material', key: 'cost_desc', label: '成本说明', minWidth: 160, showOverflowTooltip: true },
+  { group: 'material', key: 'advantage', label: '优势', minWidth: 200, slot: 'tags' },
+  { group: 'material', key: 'advantage_desc', label: '优势说明', minWidth: 160, showOverflowTooltip: true },
+  { group: 'material', key: 'application_scene', label: '应用场景', minWidth: 200, slot: 'tags' },
+  { group: 'material', key: 'application_desc', label: '应用说明', minWidth: 160, showOverflowTooltip: true },
+  { group: 'material', key: 'replace_type_display', label: '替代类型', width: 120, showOverflowTooltip: true },
+  { group: 'material', key: 'connection_method', label: '连接方式', width: 120, showOverflowTooltip: true },
+  { group: 'material', key: 'construction_method', label: '施工方式', width: 120, showOverflowTooltip: true },
+  { group: 'material', key: 'limit_condition', label: '使用限制', minWidth: 140, showOverflowTooltip: true },
+  { group: 'material', key: 'spec', label: '规格', width: 120, showOverflowTooltip: true },
+  { group: 'material', key: 'standard', label: '执行标准', width: 120, showOverflowTooltip: true },
+  { group: 'material', key: 'quality_level', label: '质量', width: 90, slot: 'stars' },
+  { group: 'material', key: 'durability_level', label: '耐久', width: 90, slot: 'stars' },
+  { group: 'material', key: 'eco_level', label: '环保', width: 90, slot: 'stars' },
+  { group: 'material', key: 'carbon_level', label: '碳', width: 90, slot: 'stars' },
+  { group: 'material', key: 'score_level', label: '综合评分', width: 110, slot: 'stars' },
+
+  // ==== B. 品牌与供应商 ====
+  { group: 'supplier', key: 'brand_name', label: '品牌', minWidth: 140, showOverflowTooltip: true },
+  { group: 'supplier', key: 'factory_short_name', label: '供应商简称', minWidth: 140, showOverflowTooltip: true },
+  { group: 'supplier', key: 'factory_name', label: '供应商全称', minWidth: 180, showOverflowTooltip: true },
+  { group: 'supplier', key: 'factory_cooperation_mode_display', label: '合作模式', width: 110 },
+  { group: 'supplier', key: 'factory_location', label: '省-市', width: 140, formatter: (r) => [r.factory_province, r.factory_city].filter(Boolean).join('-') || '-' },
+  { group: 'supplier', key: 'contact_person', label: '对接人', width: 100, showOverflowTooltip: true },
+  { group: 'supplier', key: 'contact_phone', label: '对接电话', width: 150, showOverflowTooltip: true },
+
+  // ==== C. 案例信息 ====
+  { group: 'case', key: 'landing_project', label: '落地项目', minWidth: 140, showOverflowTooltip: true },
+  { group: 'case', key: 'cases', label: '案例', minWidth: 200, showOverflowTooltip: true },
+  { group: 'case', key: 'handler', label: '经办人', width: 100, showOverflowTooltip: true },
+  { group: 'case', key: 'remark', label: '备注', minWidth: 160, showOverflowTooltip: true },
+]
+
+export const ALL_COLUMN_KEYS = MATERIAL_COLUMNS.map((c) => c.key)