diff --git a/backend/services/trading-service/src/application/services/payment-proof.service.ts b/backend/services/trading-service/src/application/services/payment-proof.service.ts
index db990164..924d54ea 100644
--- a/backend/services/trading-service/src/application/services/payment-proof.service.ts
+++ b/backend/services/trading-service/src/application/services/payment-proof.service.ts
@@ -41,22 +41,16 @@ export class PaymentProofService {
 
   private buildSvg(data: ProofData): string {
     const time = data.completedAt.toISOString().replace('T', ' ').slice(0, 19);
-    const shortTx = data.txHash.length > 20
-      ? `${data.txHash.slice(0, 10)}...${data.txHash.slice(-10)}`
-      : data.txHash;
-    const shortAddr = data.sellerAddress.length > 20
-      ? `${data.sellerAddress.slice(0, 10)}...${data.sellerAddress.slice(-10)}`
-      : data.sellerAddress;
 
-    return `<svg xmlns="http://www.w3.org/2000/svg" width="600" height="480">
+    return `<svg xmlns="http://www.w3.org/2000/svg" width="600" height="420">
   <defs>
     <linearGradient id="bg" x1="0" y1="0" x2="0" y2="1">
       <stop offset="0%" stop-color="#f8fafc"/>
       <stop offset="100%" stop-color="#e2e8f0"/>
     </linearGradient>
   </defs>
-  <rect width="600" height="480" rx="16" fill="url(#bg)"/>
-  <rect x="20" y="20" width="560" height="440" rx="12" fill="white" stroke="#cbd5e1" stroke-width="1"/>
+  <rect width="600" height="420" rx="16" fill="url(#bg)"/>
+  <rect x="20" y="20" width="560" height="380" rx="12" fill="white" stroke="#cbd5e1" stroke-width="1"/>
 
   <!-- Header -->
   <rect x="20" y="20" width="560" height="70" rx="12" fill="#1e40af"/>
@@ -79,21 +73,16 @@ export class PaymentProofService {
 
   <line x1="60" y1="248" x2="540" y2="248" stroke="#e2e8f0" stroke-width="1"/>
 
-  <text x="60" y="275" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="13" fill="#64748b">交易哈希</text>
-  <text x="60" y="298" font-family="monospace,Noto Sans CJK SC,sans-serif" font-size="14" fill="#1e293b">${this.esc(shortTx)}</text>
+  <text x="60" y="275" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="13" fill="#64748b">对方ID</text>
+  <text x="60" y="298" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="16" font-weight="bold" fill="#1e293b">${this.esc(data.sellerId)}</text>
 
   <line x1="60" y1="315" x2="540" y2="315" stroke="#e2e8f0" stroke-width="1"/>
 
-  <text x="60" y="340" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="13" fill="#64748b">对方ID</text>
-  <text x="60" y="363" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="16" font-weight="bold" fill="#1e293b">${this.esc(data.sellerId)}</text>
-
-  <line x1="60" y1="380" x2="540" y2="380" stroke="#e2e8f0" stroke-width="1"/>
-
-  <text x="60" y="405" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="13" fill="#64748b">完成时间</text>
-  <text x="60" y="428" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="15" fill="#1e293b">${this.esc(time)}</text>
+  <text x="60" y="340" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="13" fill="#64748b">完成时间</text>
+  <text x="60" y="363" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="15" fill="#1e293b">${this.esc(time)}</text>
 
   <!-- Footer -->
-  <text x="300" y="458" text-anchor="middle" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="11" fill="#94a3b8">由系统自动生成 · RWAdurian C2C Bot</text>
+  <text x="300" y="395" text-anchor="middle" font-family="Noto Sans CJK SC,Noto Sans SC,sans-serif" font-size="11" fill="#94a3b8">由系统自动生成 · RWAdurian C2C Bot</text>
 </svg>`;
   }