diff --git a/tests/routes/hicad-manufacturing-extension.test.ts b/tests/routes/hicad-manufacturing-extension.test.ts
index f86ab885d..72cc4508e 100644
--- a/tests/routes/hicad-manufacturing-extension.test.ts
+++ b/tests/routes/hicad-manufacturing-extension.test.ts
@@ -90,6 +90,8 @@ test.describe('HiCAD manufacturing extension', () => {
       projectName: '<工作台>',
       generatedAt: '2026-07-27 20:00',
       overallDimensions: { x: 120, y: 60, z: 92 },
+      brandName: '由壹点AI',
+      brandLogoUrl: '/api/favicon?surface=hicad',
       snapshotDataUrl: 'data:image/png;base64,abc',
       bomRows: rows,
     })
@@ -101,6 +103,8 @@ test.describe('HiCAD manufacturing extension', () => {
     expect(html).toContain('右视图')
     expect(html).toContain('120 mm')
     expect(html).toContain('配件明细表（BOM）')
+    expect(html).toContain('由壹点AI')
+    expect(html).toContain('/api/favicon?surface=hicad')
     expect(html).toContain('@page { size: A3 landscape;')
   })
 
@@ -112,6 +116,9 @@ test.describe('HiCAD manufacturing extension', () => {
       projectName: '工作台生产图',
       generatedAt: '2026-07-27 20:00',
       overallDimensions: { x: 120, y: 60, z: 92 },
+      brandName: '由壹点AI',
+      brandLogoUrl:
+        'data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="80" height="80"%3E%3Crect width="80" height="80" fill="%23111827"/%3E%3Cpath d="M20 20h40v40H20z" fill="white"/%3E%3C/svg%3E',
       bomRows: rows,
       notes:
         '材料、表面处理、公差、连接方式和检验标准须在投产前由工程人员复核。',
@@ -125,11 +132,13 @@ test.describe('HiCAD manufacturing extension', () => {
       clientWidth: document.documentElement.clientWidth,
       tableCount: document.querySelectorAll('table').length,
       dimensionViewCount: document.querySelectorAll('.dimension-view').length,
+      brandCount: document.querySelectorAll('.brand-name').length,
     }))
 
     expect(layout.scrollWidth).toBeLessThanOrEqual(layout.clientWidth)
     expect(layout.tableCount).toBe(1)
     expect(layout.dimensionViewCount).toBe(3)
+    expect(layout.brandCount).toBe(1)
     await page.screenshot({
       path: testInfo.outputPath('engineering-sheet.png'),
       fullPage: true,
diff --git a/vendor/zoo-modeling-app/HicadManufacturingPanel.tsx b/vendor/zoo-modeling-app/HicadManufacturingPanel.tsx
index 84bc0b044..c10b8b65a 100644
--- a/vendor/zoo-modeling-app/HicadManufacturingPanel.tsx
+++ b/vendor/zoo-modeling-app/HicadManufacturingPanel.tsx
@@ -5,7 +5,7 @@ import { useSingletons } from '@src/lib/boot'
 import { isModelingResponse } from '@src/lib/kcSdkGuards'
 import { engineStreamZoomToFit, engineViewIsometric } from '@src/lib/utils'
 import { uuidv4 } from '@src/lib/utils'
-import { useMemo, useRef, useState } from 'react'
+import { useEffect, useMemo, useRef, useState } from 'react'
 import toast from 'react-hot-toast'
 import {
   buildExplodeOffsets,
@@ -31,6 +31,11 @@ type BomOverrides = Record<
   }
 >
 
+type BrandSettings = {
+  name: string
+  logoUrl: string
+}
+
 function downloadText(filename: string, text: string, type: string) {
   const blob = new Blob([text], { type })
   const url = URL.createObjectURL(blob)
@@ -116,12 +121,48 @@ export function HicadManufacturingPanel({
   const [snapshot, setSnapshot] = useState<string>()
   const [exploded, setExploded] = useState(false)
   const [overrides, setOverrides] = useState<BomOverrides>({})
+  const [brand, setBrand] = useState<BrandSettings>({
+    name: '由壹点AI',
+    logoUrl: '/api/favicon?surface=hicad',
+  })
   const [notes, setNotes] = useState(
     '材料、表面处理、公差、连接方式和检验标准须在投产前由工程人员复核。'
   )
   const explodeOffsetsRef = useRef<ExplodeOffset[]>([])
   const resolvedProjectName = projectName || 'HiCAD 模型'
 
+  useEffect(() => {
+    let active = true
+    void fetch('/api/site-settings?scope=chat', {
+      credentials: 'same-origin',
+    })
+      .then((response) => {
+        if (!response.ok) throw new Error('Unable to load site settings')
+        return response.json() as Promise<Record<string, unknown>>
+      })
+      .then((settings) => {
+        if (!active) return
+        const name =
+          typeof settings.siteName === 'string' && settings.siteName.trim()
+            ? settings.siteName.trim()
+            : '由壹点AI'
+        const configuredLogo =
+          typeof settings.siteLogo === 'string' && settings.siteLogo.trim()
+            ? settings.siteLogo.trim()
+            : typeof settings.siteLogoDark === 'string' &&
+                settings.siteLogoDark.trim()
+              ? settings.siteLogoDark.trim()
+              : '/api/favicon?surface=hicad'
+        setBrand({ name, logoUrl: configuredLogo })
+      })
+      .catch(() => {
+        // Keep the built-in website branding when settings are unavailable.
+      })
+    return () => {
+      active = false
+    }
+  }, [])
+
   const sendModelingCommand = async (cmd: ModelingCmd) => {
     const response = await kclManager.engineCommandManager.sendSceneCommand({
       type: 'modeling_cmd_req',
@@ -387,6 +428,8 @@ export function HicadManufacturingPanel({
         projectName: resolvedProjectName,
         generatedAt: new Date().toLocaleString('zh-CN'),
         overallDimensions: overall.dimensions,
+        brandName: brand.name,
+        brandLogoUrl: brand.logoUrl,
         snapshotDataUrl: snapshot,
         bomRows,
         notes,
diff --git a/vendor/zoo-modeling-app/manufacturing.ts b/vendor/zoo-modeling-app/manufacturing.ts
index 09b6f683e..e15c3d27d 100644
--- a/vendor/zoo-modeling-app/manufacturing.ts
+++ b/vendor/zoo-modeling-app/manufacturing.ts
@@ -35,6 +35,8 @@ export type EngineeringSheetInput = {
   projectName: string
   generatedAt: string
   overallDimensions: Point3d
+  brandName?: string
+  brandLogoUrl?: string
   snapshotDataUrl?: string
   bomRows: BomRow[]
   notes?: string
@@ -328,6 +330,10 @@ export function createEngineeringSheetHtml(input: EngineeringSheetInput) {
   const snapshot = input.snapshotDataUrl
     ? `<img class="snapshot" src="${escapeHtml(input.snapshotDataUrl)}" alt="爆炸图"/>`
     : '<div class="snapshot-empty">暂无爆炸图快照</div>'
+  const brandName = escapeHtml(input.brandName || '由壹点AI')
+  const brandLogo = input.brandLogoUrl
+    ? `<img class="brand-logo" src="${escapeHtml(input.brandLogoUrl)}" alt="${brandName}"/>`
+    : ''
 
   return `<!doctype html>
 <html lang="zh-CN">
@@ -338,13 +344,20 @@ export function createEngineeringSheetHtml(input: EngineeringSheetInput) {
     @page { size: A3 landscape; margin: 12mm; }
     * { box-sizing: border-box; }
     body { margin: 0; color: #111827; font-family: Arial, "Microsoft YaHei", sans-serif; }
-    header { display: flex; align-items: end; justify-content: space-between; border-bottom: 2px solid #111827; padding-bottom: 8px; }
+    header { display: flex; align-items: end; justify-content: space-between; gap: 24px; border-bottom: 2px solid #111827; padding-bottom: 8px; }
+    .brand { display: flex; align-items: center; gap: 10px; min-width: 170px; }
+    .brand-logo { width: 38px; height: 38px; object-fit: contain; }
+    .brand-name { font-size: 18px; font-weight: 700; white-space: nowrap; }
+    .title { flex: 1; }
     h1 { margin: 0; font-size: 24px; }
     h2 { margin: 0 0 8px; font-size: 16px; }
     p { margin: 4px 0; }
     .meta { color: #4b5563; font-size: 12px; text-align: right; }
     .sheet-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 16px; margin-top: 14px; }
     section { break-inside: avoid; }
+    .snapshot-wrap { position: relative; }
+    .snapshot-brand { position: absolute; left: 10px; top: 10px; z-index: 1; display: flex; align-items: center; gap: 6px; padding: 5px 8px; background: rgba(255,255,255,.9); border: 1px solid #d1d5db; font-size: 11px; font-weight: 700; }
+    .snapshot-brand img { width: 20px; height: 20px; object-fit: contain; }
     .snapshot { width: 100%; height: 310px; object-fit: contain; border: 1px solid #9ca3af; }
     .snapshot-empty { height: 310px; display: grid; place-items: center; border: 1px dashed #9ca3af; color: #6b7280; }
     .views { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
@@ -362,7 +375,11 @@ export function createEngineeringSheetHtml(input: EngineeringSheetInput) {
 </head>
 <body>
   <header>
-    <div>
+    <div class="brand">
+      ${brandLogo}
+      <span class="brand-name">${brandName}</span>
+    </div>
+    <div class="title">
       <h1>${escapeHtml(input.projectName)} · 生产工艺图</h1>
       <p>总体尺寸：${formatDimension(dimensions.x)} × ${formatDimension(dimensions.y)} × ${formatDimension(dimensions.z)}</p>
     </div>
@@ -371,7 +388,10 @@ export function createEngineeringSheetHtml(input: EngineeringSheetInput) {
   <main class="sheet-grid">
     <section>
       <h2>装配爆炸图</h2>
-      ${snapshot}
+      <div class="snapshot-wrap">
+        <div class="snapshot-brand">${brandLogo}<span>${brandName}</span></div>
+        ${snapshot}
+      </div>
     </section>
     <section>
       <h2>总体三视图与尺寸</h2>