diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..6241e72
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,6 @@
+# Database connection for Warehouse Query System
+DB_SERVER=192.168.110.114
+DB_PORT=1433
+DB_DATABASE=CompanyDB
+DB_USER=
+DB_PASSWORD=
diff --git a/.gitignore b/.gitignore
index 5ef6a52..7b8da95 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,6 +32,7 @@ yarn-error.log*
 
 # env files (can opt-in for committing if needed)
 .env*
+!.env.example
 
 # vercel
 .vercel
diff --git a/app/api/warehouse/route.ts b/app/api/warehouse/route.ts
index ddecab2..46ec2fa 100644
--- a/app/api/warehouse/route.ts
+++ b/app/api/warehouse/route.ts
@@ -147,8 +147,12 @@ export async function GET(request: NextRequest) {
     const total = countResult.recordset[0].total;
 
     // --- Data query with sorting & pagination ---
-    const sortCol = SORT_MAP[params.sortKey || ""] || "c.总排号";
-    const sortDir = params.sortDir === "desc" ? "DESC" : "ASC";
+    const userSortCol = SORT_MAP[params.sortKey || ""];
+    const userSortDir = params.sortDir === "desc" ? "DESC" : "ASC";
+    // Default multi-column sort: 排产号(车间号) ASC, 总排号 ASC, 箱号 ASC (FR-3)
+    const orderBy = userSortCol
+      ? `${userSortCol} ${userSortDir}`
+      : "c.车间号 ASC, c.总排号 ASC, b.box_no ASC";
     const page = Math.max(1, params.page || 1);
     const pageSize = params.pageSize || 20;
     const offset = (page - 1) * pageSize;
@@ -170,7 +174,7 @@ export async function GET(request: NextRequest) {
           ISNULL(c.经办人, '') AS 经办人,
           ISNULL(c.订单号, '') AS 订单号,
           wh.日期 AS 入库日期,
-          ROW_NUMBER() OVER (ORDER BY ${sortCol} ${sortDir}) AS _rownum
+          ROW_NUMBER() OVER (ORDER BY ${orderBy}) AS _rownum
         ${mainFrom}
         ${where}
       ) numbered
diff --git a/app/page.tsx b/app/page.tsx
index 7cb9def..f3b2ba9 100644
--- a/app/page.tsx
+++ b/app/page.tsx
@@ -19,7 +19,7 @@ const COLUMNS = [
   { key: "paichan",   label: "排产号",   mono: true,  align: "left"  },
   { key: "zongpai",   label: "总排号",   mono: true,  align: "left"  },
   { key: "workshop",  label: "车间",                  align: "left"  },
-  { key: "model",     label: "产品型号",               align: "left"  },
+  { key: "model",     label: "产品型号", strong: true,  align: "left"  },
   { key: "range",     label: "量程",                  align: "left"  },
   { key: "qty",       label: "数量",     num: true,   align: "right" },
   { key: "boxNo",     label: "箱号",     mono: true,  align: "left"  },
@@ -374,7 +374,9 @@ export default function WarehouseDashboard() {
                           const align = col.align === "right" ? "text-right" : "text-left";
                           const font = col.mono ? "font-mono" : "";
                           const num = col.num ? "tabular-nums" : "";
-                          const color = col.mono ? "text-slate-600" : "text-slate-700";
+                          const color = col.strong
+                            ? "font-medium text-slate-900"
+                            : col.mono ? "text-slate-600" : "text-slate-700";
                           return (
                             <td key={col.key} className={`whitespace-nowrap border-b border-slate-100 px-4 py-2.5 ${align} ${font} ${num} ${color}`}>
                               {empty ? <span className="text-slate-300">—</span> : String(raw)}