diff --git a/src/components/SignatureOverlay.tsx b/src/components/SignatureOverlay.tsx
index ec53a14..c6a3b04 100644
--- a/src/components/SignatureOverlay.tsx
+++ b/src/components/SignatureOverlay.tsx
@@ -5,11 +5,12 @@ import './SignatureOverlay.css';
 
 interface SignatureOverlayProps {
   open: boolean;
+  title?: string;
   onCancel: () => void;
   onConfirm: (dataUrl: string) => void;
 }
 
-function SignatureOverlay({ open, onCancel, onConfirm }: SignatureOverlayProps) {
+function SignatureOverlay({ open, title = '请在框内签名', onCancel, onConfirm }: SignatureOverlayProps) {
   const padRef = useRef<SignaturePadHandle>(null);
   const [, setData] = useState('');
 
@@ -44,7 +45,7 @@ function SignatureOverlay({ open, onCancel, onConfirm }: SignatureOverlayProps)
           <Button type="text" onClick={onCancel}>
             取消
           </Button>
-          <span className="signature-overlay-title">请在框内签名</span>
+          <span className="signature-overlay-title">{title}</span>
           <Button type="text" onClick={handleClear}>
             清除
           </Button>
diff --git a/src/pages/AftersalesConfirm.tsx b/src/pages/AftersalesConfirm.tsx
index 744afc3..ead6fbf 100644
--- a/src/pages/AftersalesConfirm.tsx
+++ b/src/pages/AftersalesConfirm.tsx
@@ -29,8 +29,11 @@ function AftersalesConfirmPage() {
   const [submitting, setSubmitting] = useState(false);
   const [rejectReason, setRejectReason] = useState('');
   const [showRejectDialog, setShowRejectDialog] = useState(false);
-  const [signatureData, setSignatureData] = useState('');
-  const [showSignatureOverlay, setShowSignatureOverlay] = useState(false);
+  const [customerSignatureData, setCustomerSignatureData] = useState('');
+  const [responsibleSignatureData, setResponsibleSignatureData] = useState('');
+  const [activeSignatureRole, setActiveSignatureRole] = useState<'customer' | 'responsible' | null>(
+    null,
+  );
 
   const loadOrder = async () => {
     setLoading(true);
@@ -53,15 +56,20 @@ function AftersalesConfirmPage() {
   }, [serialNumber]);
 
   const handleAuthorize = async () => {
-    if (!signatureData) {
-      message.error('请先签名');
+    if (!customerSignatureData) {
+      message.error('请先完成客户签名');
+      return;
+    }
+    if (!responsibleSignatureData) {
+      message.error('请先完成负责人签名');
       return;
     }
     setSubmitting(true);
     try {
       const updated = await aftersalesApi.customerConfirm(serialNumber, {
         action: 'authorize',
-        signature: signatureData,
+        signature: customerSignatureData,
+        responsibleSignature: responsibleSignatureData,
       });
       setOrder(updated);
       message.success('感谢您的确认，工单已完成');
@@ -99,8 +107,16 @@ function AftersalesConfirmPage() {
     }
   };
 
-  const handleClearSignature = () => {
-    setSignatureData('');
+  const handleClearSignature = (role: 'customer' | 'responsible') => {
+    if (role === 'customer') {
+      setCustomerSignatureData('');
+      return;
+    }
+    setResponsibleSignatureData('');
+  };
+
+  const openSignatureOverlay = (role: 'customer' | 'responsible') => {
+    setActiveSignatureRole(role);
   };
 
   if (loading) {
@@ -220,48 +236,103 @@ function AftersalesConfirmPage() {
           </div>
         </div>
 
-        {isClosed && order.signature && (
+        {isClosed && (order.signature || order.responsibleSignature) && (
           <div className="aftersales-signature-archived">
-            <p className="aftersales-signature-tip">客户确认签名</p>
-            <img
-              src={order.signature}
-              alt="客户确认签名"
-              className="aftersales-signature-archived-img"
-            />
+            <div className="aftersales-signature-grid">
+              {order.signature && (
+                <div className="aftersales-signature-archived-item">
+                  <p className="aftersales-signature-tip">客户签名</p>
+                  <img
+                    src={order.signature}
+                    alt="客户签名"
+                    className="aftersales-signature-archived-img"
+                  />
+                </div>
+              )}
+              {order.responsibleSignature && (
+                <div className="aftersales-signature-archived-item">
+                  <p className="aftersales-signature-tip">负责人签名</p>
+                  <img
+                    src={order.responsibleSignature}
+                    alt="负责人签名"
+                    className="aftersales-signature-archived-img"
+                  />
+                </div>
+              )}
+            </div>
           </div>
         )}
 
         {isPending && (
           <>
             <div className="aftersales-signature-section">
-              <div className="aftersales-signature-header">
-                <p className="aftersales-signature-tip">请签名确认维修结果</p>
-                {signatureData && (
-                  <Button size="small" type="link" onClick={handleClearSignature}>
-                    清除签名
-                  </Button>
-                )}
+              <p className="aftersales-signature-section-title">请签名确认维修结果</p>
+              <div className="aftersales-signature-grid">
+                <div className="aftersales-signature-item">
+                  <div className="aftersales-signature-header">
+                    <p className="aftersales-signature-tip">客户签名</p>
+                    {customerSignatureData && (
+                      <Button size="small" type="link" onClick={() => handleClearSignature('customer')}>
+                        清除
+                      </Button>
+                    )}
+                  </div>
+                  {customerSignatureData ? (
+                    <button
+                      type="button"
+                      className="aftersales-signature-preview"
+                      onClick={() => openSignatureOverlay('customer')}
+                    >
+                      <img src={customerSignatureData} alt="客户签名" />
+                      <span className="aftersales-signature-preview-hint">点击可重新签名</span>
+                    </button>
+                  ) : (
+                    <button
+                      type="button"
+                      className="aftersales-signature-trigger"
+                      onClick={() => openSignatureOverlay('customer')}
+                    >
+                      <EditOutlined />
+                      <span>客户签名</span>
+                      <small>将进入签名页</small>
+                    </button>
+                  )}
+                </div>
+                <div className="aftersales-signature-item">
+                  <div className="aftersales-signature-header">
+                    <p className="aftersales-signature-tip">负责人签名</p>
+                    {responsibleSignatureData && (
+                      <Button
+                        size="small"
+                        type="link"
+                        onClick={() => handleClearSignature('responsible')}
+                      >
+                        清除
+                      </Button>
+                    )}
+                  </div>
+                  {responsibleSignatureData ? (
+                    <button
+                      type="button"
+                      className="aftersales-signature-preview"
+                      onClick={() => openSignatureOverlay('responsible')}
+                    >
+                      <img src={responsibleSignatureData} alt="负责人签名" />
+                      <span className="aftersales-signature-preview-hint">点击可重新签名</span>
+                    </button>
+                  ) : (
+                    <button
+                      type="button"
+                      className="aftersales-signature-trigger"
+                      onClick={() => openSignatureOverlay('responsible')}
+                    >
+                      <EditOutlined />
+                      <span>负责人签名</span>
+                      <small>将进入签名页</small>
+                    </button>
+                  )}
+                </div>
               </div>
-              {signatureData ? (
-                <button
-                  type="button"
-                  className="aftersales-signature-preview"
-                  onClick={() => setShowSignatureOverlay(true)}
-                >
-                  <img src={signatureData} alt="客户确认签名" />
-                  <span className="aftersales-signature-preview-hint">点击可重新签名</span>
-                </button>
-              ) : (
-                <button
-                  type="button"
-                  className="aftersales-signature-trigger"
-                  onClick={() => setShowSignatureOverlay(true)}
-                >
-                  <EditOutlined />
-                  <span>点击此处签名</span>
-                  <small>将进入签名页</small>
-                </button>
-              )}
             </div>
             <div className="aftersales-actions">
               <Button
@@ -288,11 +359,16 @@ function AftersalesConfirmPage() {
       </Card>
 
       <SignatureOverlay
-        open={showSignatureOverlay}
-        onCancel={() => setShowSignatureOverlay(false)}
+        open={activeSignatureRole !== null}
+        title={activeSignatureRole === 'responsible' ? '负责人签名' : '客户签名'}
+        onCancel={() => setActiveSignatureRole(null)}
         onConfirm={(url) => {
-          setSignatureData(url);
-          setShowSignatureOverlay(false);
+          if (activeSignatureRole === 'responsible') {
+            setResponsibleSignatureData(url);
+          } else {
+            setCustomerSignatureData(url);
+          }
+          setActiveSignatureRole(null);
         }}
       />
 
diff --git a/src/pages/AftersalesDetail.tsx b/src/pages/AftersalesDetail.tsx
index c289cd4..16715c2 100644
--- a/src/pages/AftersalesDetail.tsx
+++ b/src/pages/AftersalesDetail.tsx
@@ -241,11 +241,11 @@ function AftersalesDetailPage() {
             .electronic-form-table td { min-height: 24px; }
             .electronic-form-table .electronic-form-code { color: #165dff; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 16px; font-weight: 700; }
             .electronic-form-text { min-height: 72px; white-space: pre-wrap; }
-            .electronic-form-signature { display: flex; justify-content: flex-end; margin-top: 18px; }
-            .electronic-form-signature-box { width: 240px; text-align: center; }
+            .electronic-form-signatures { display: flex; justify-content: space-between; gap: 40px; margin-top: 22px; }
+            .electronic-form-signature-box { flex: 1; max-width: 300px; text-align: center; }
             .electronic-form-signature-title { margin: 0 0 8px; font-weight: 600; }
-            .electronic-form-signature-img { max-width: 220px; max-height: 90px; object-fit: contain; }
-            .electronic-form-signature-line { height: 64px; border-bottom: 1px solid #1f2937; }
+            .electronic-form-signature-stage { height: 96px; display: flex; align-items: center; justify-content: center; border-bottom: 1px solid #1f2937; }
+            .electronic-form-signature-img { max-width: 240px; max-height: 90px; object-fit: contain; }
           </style>
         </head>
         <body>${formNode.outerHTML}</body>
@@ -611,18 +611,30 @@ function AftersalesDetailPage() {
               </tr>
             </tbody>
           </table>
-          <div className="electronic-form-signature">
+          <div className="electronic-form-signatures">
+            <div className="electronic-form-signature-box">
+              <p className="electronic-form-signature-title">负责人签名</p>
+              <div className="electronic-form-signature-stage">
+                {order.responsibleSignature ? (
+                  <img
+                    src={order.responsibleSignature}
+                    alt="负责人签名"
+                    className="electronic-form-signature-img"
+                  />
+                ) : null}
+              </div>
+            </div>
             <div className="electronic-form-signature-box">
               <p className="electronic-form-signature-title">客户签名</p>
-              {order.signature ? (
-                <img
-                  src={order.signature}
-                  alt="客户签名"
-                  className="electronic-form-signature-img"
-                />
-              ) : (
-                <div className="electronic-form-signature-line" />
-              )}
+              <div className="electronic-form-signature-stage">
+                {order.signature ? (
+                  <img
+                    src={order.signature}
+                    alt="客户签名"
+                    className="electronic-form-signature-img"
+                  />
+                ) : null}
+              </div>
             </div>
           </div>
         </div>
diff --git a/src/pages/styles/AftersalesConfirm.css b/src/pages/styles/AftersalesConfirm.css
index b891612..0564137 100644
--- a/src/pages/styles/AftersalesConfirm.css
+++ b/src/pages/styles/AftersalesConfirm.css
@@ -37,6 +37,23 @@
   border-top: 1px solid rgba(0, 0, 0, 0.06);
 }
 
+.aftersales-signature-section-title {
+  margin: 0 0 14px;
+  color: #111827;
+  font-size: 15px;
+  font-weight: 600;
+}
+
+.aftersales-signature-grid {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 14px;
+}
+
+.aftersales-signature-item {
+  min-width: 0;
+}
+
 .aftersales-signature-header {
   display: flex;
   align-items: center;
@@ -53,6 +70,7 @@
 
 .aftersales-signature-trigger {
   width: 100%;
+  min-height: 132px;
   display: flex;
   flex-direction: column;
   align-items: center;
@@ -88,6 +106,7 @@
 
 .aftersales-signature-preview {
   width: 100%;
+  min-height: 132px;
   padding: 8px;
   border: 1px solid #e5e7eb;
   border-radius: 10px;
@@ -102,8 +121,9 @@
 
 .aftersales-signature-preview img {
   max-width: 100%;
-  max-height: 160px;
+  max-height: 120px;
   display: block;
+  object-fit: contain;
 }
 
 .aftersales-signature-preview-hint {
@@ -115,12 +135,16 @@
   margin-top: 24px;
   padding-top: 24px;
   border-top: 1px solid rgba(0, 0, 0, 0.06);
+}
+
+.aftersales-signature-archived-item {
+  min-width: 0;
   text-align: center;
 }
 
 .aftersales-signature-archived-img {
   max-width: 100%;
-  max-height: 220px;
+  max-height: 160px;
   margin-top: 8px;
   border: 1px solid #e5e7eb;
   border-radius: 8px;
@@ -137,3 +161,9 @@
 .aftersales-actions > button {
   flex: 1;
 }
+
+@media (max-width: 520px) {
+  .aftersales-signature-grid {
+    grid-template-columns: 1fr;
+  }
+}
diff --git a/src/pages/styles/AftersalesDetail.css b/src/pages/styles/AftersalesDetail.css
index ed47ed3..c32f748 100644
--- a/src/pages/styles/AftersalesDetail.css
+++ b/src/pages/styles/AftersalesDetail.css
@@ -78,14 +78,16 @@
   white-space: pre-wrap;
 }
 
-.electronic-form-signature {
+.electronic-form-signatures {
   display: flex;
-  justify-content: flex-end;
-  margin-top: 18px;
+  justify-content: space-between;
+  gap: 40px;
+  margin-top: 22px;
 }
 
 .electronic-form-signature-box {
-  width: 240px;
+  flex: 1;
+  max-width: 300px;
   text-align: center;
 }
 
@@ -94,15 +96,18 @@
   font-weight: 600;
 }
 
-.electronic-form-signature-img {
-  max-width: 220px;
-  max-height: 90px;
-  object-fit: contain;
+.electronic-form-signature-stage {
+  height: 96px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-bottom: 1px solid #1f2937;
 }
 
-.electronic-form-signature-line {
-  height: 64px;
-  border-bottom: 1px solid #1f2937;
+.electronic-form-signature-img {
+  max-width: 240px;
+  max-height: 90px;
+  object-fit: contain;
 }
 
 @media (max-width: 720px) {
@@ -131,4 +136,8 @@
   .electronic-form-table td {
     padding: 8px;
   }
+
+  .electronic-form-signatures {
+    gap: 16px;
+  }
 }
diff --git a/src/types/index.ts b/src/types/index.ts
index 33bd082..333dfe4 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -197,6 +197,7 @@ export interface AftersalesOrder {
   confirmedAt?: string;
   rejectCount: number;
   signature?: string;
+  responsibleSignature?: string;
   createdAt: string;
   updatedAt: string;
   technician?: User;
@@ -217,6 +218,7 @@ export interface AftersalesPublicView {
   createdAt: string;
   confirmedAt?: string;
   signature?: string;
+  responsibleSignature?: string;
 }
 
 export interface CreateAftersalesRequest {
@@ -257,5 +259,6 @@ export interface AftersalesListResponse {
 export interface CustomerConfirmRequest {
   action: 'authorize' | 'reject';
   signature?: string;
+  responsibleSignature?: string;
   rejectReason?: string;
 }