diff --git a/components/OTPBindUI.tsx b/components/OTPBindUI.tsx
index 1531f47..8ae6d16 100644
--- a/components/OTPBindUI.tsx
+++ b/components/OTPBindUI.tsx
@@ -87,10 +87,33 @@ export const OTPBindUI: React.FC<OTPBindUIProps> = ({
 
                 {showOtp && (
                     <>
-                        <Text style={styles.hint}>验证码已发送至 {state.mobile}</Text>
+                        <Text style={styles.hint}>
+                            {state.needPassword
+                                ? `验证码已发送至 ${state.mobile}，该账号需输入密码`
+                                : `验证码已发送至 ${state.mobile}`}
+                        </Text>
                         {!!state.errorMessage && (
                             <Text style={styles.errorText}>{state.errorMessage}</Text>
                         )}
+                        {state.needPassword && (
+                            <>
+                                <Text style={styles.label}>Amazon 密码</Text>
+                                <TextInput
+                                    style={[styles.input, !!state.errorMessage && styles.inputError]}
+                                    placeholder="请输入账号密码"
+                                    placeholderTextColor="#aaa"
+                                    secureTextEntry
+                                    autoCapitalize="none"
+                                    autoCorrect={false}
+                                    value={state.password}
+                                    onChangeText={t => {
+                                        actions.setPassword(t);
+                                        if (state.errorMessage) actions.clearError();
+                                    }}
+                                    editable={!isLoading}
+                                />
+                            </>
+                        )}
                         <Text style={styles.label}>验证码</Text>
                         <TextInput
                             style={[styles.input, !!state.errorMessage && styles.inputError]}
diff --git a/docs/流程图.mmd b/docs/流程图.mmd
new file mode 100644
index 0000000..cb622aa
--- /dev/null
+++ b/docs/流程图.mmd
@@ -0,0 +1,20 @@
+graph TD
+    A[开始: 订单状态未支付] --> B{最后一次查单结果<br/>是否成功?}
+    B -- 失败 --> C[标记: 接口异常/待重试]
+    B -- 成功 --> D{系统内是否有<br/>匹配记录?}
+    
+    D -- 有记录 --> E[按正常流程处理]
+    D -- 无记录 --> F[查询当天整天流水]
+    
+    F --> G{当天是否有<br/>其它成功流水?}
+    G -- 有流水 --> H[结论: 没付<br/>原因: 流水正常/该单未付]
+    G -- 无流水 --> I[查询前1-2天流水]
+    
+    I --> J{前1-2天是否有<br/>成功流水?}
+    J -- 有流水 --> H
+    J -- 无流水 --> K[结论: 判定为异常或死卡<br/>原因: 持续无数据,需检查通道]
+
+    %% 样式定义
+    style H fill:#f96,stroke:#333,stroke-width:2px
+    style K fill:#ff9,stroke:#333,stroke-width:2px
+    style C fill:#ccc,stroke:#333
\ No newline at end of file
diff --git a/docs/流程图.png b/docs/流程图.png
new file mode 100644
index 0000000..e7540e4
Binary files /dev/null and b/docs/流程图.png differ
diff --git a/测试结果.md b/docs/测试结果.md
similarity index 100%
rename from 测试结果.md
rename to docs/测试结果.md
diff --git a/说明.txt b/docs/说明.txt
similarity index 100%
rename from 说明.txt
rename to docs/说明.txt
diff --git a/hooks/useOTPBind.ts b/hooks/useOTPBind.ts
index 04bb842..2ed3918 100644
--- a/hooks/useOTPBind.ts
+++ b/hooks/useOTPBind.ts
@@ -12,6 +12,8 @@ export interface OTPBindCallbacks {
 export interface OTPBindState {
     mobile: string;
     otp: string;
+    password: string;
+    needPassword: boolean;
     step: 'mobile' | 'otp' | 'processing';
     loading: boolean;
     otpData: any;
@@ -21,6 +23,7 @@ export interface OTPBindState {
 export interface OTPBindActions {
     setMobile: (mobile: string) => void;
     setOtp: (otp: string) => void;
+    setPassword: (password: string) => void;
     requestOTP: () => Promise<void>;
     verifyOTP: () => Promise<void>;
     resetToMobile: () => void;
@@ -39,6 +42,8 @@ export function useOTPBind(
 ): [OTPBindState, OTPBindActions] {
     const [mobile, setMobile] = useState('');
     const [otp, setOtp] = useState('');
+    const [password, setPassword] = useState('');
+    const [needPassword, setNeedPassword] = useState(false);
     const [step, setStep] = useState<'mobile' | 'otp' | 'processing'>('mobile');
     const [loading, setLoading] = useState(false);
     const [otpData, setOtpData] = useState<any>(null);
@@ -82,6 +87,7 @@ export function useOTPBind(
 
             if (response.success) {
                 setOtpData(response.data);
+                setNeedPassword(!!response.data?.needPassword);
                 setStep('otp');
                 setErrorMessage('');
             } else {
@@ -107,6 +113,12 @@ export function useOTPBind(
             onError(msg);
             return;
         }
+        if (needPassword && !password.trim()) {
+            const msg = '请输入 Amazon 账号密码';
+            setErrorMessage(msg);
+            onError(msg);
+            return;
+        }
 
         setLoading(true);
         setErrorMessage('');
@@ -117,6 +129,7 @@ export function useOTPBind(
             const response = await onVerifyOTP(walletType, {
                 mobile,
                 otp,
+                password: needPassword ? password : undefined,
                 ...additionalParams,
                 ...(otpData || {}),
             });
@@ -144,11 +157,13 @@ export function useOTPBind(
     const resetToMobile = () => {
         setStep('mobile');
         setOtp('');
+        setPassword('');
+        setNeedPassword(false);
         setErrorMessage('');
     };
 
     return [
-        { mobile, otp, step, loading, otpData, errorMessage },
-        { setMobile, setOtp, requestOTP, verifyOTP, resetToMobile, clearError },
+        { mobile, otp, password, needPassword, step, loading, otpData, errorMessage },
+        { setMobile, setOtp, setPassword, requestOTP, verifyOTP, resetToMobile, clearError },
     ];
 }
diff --git a/screens/HomeScreen.tsx b/screens/HomeScreen.tsx
index 6d90dd2..a626440 100644
--- a/screens/HomeScreen.tsx
+++ b/screens/HomeScreen.tsx
@@ -801,7 +801,10 @@ export default class HomeScreen extends Component<any, HomeScreenState> {
                             return this.wrapOtpCall(() => Api.instance.requestOTP(wt, p.mobile, {}));
                         }}
                         onVerifyOTP={async (wt, p) => {
-                            return this.wrapOtpCall(() => Api.instance.verifyOTP(wt, p.mobile, p.otp, { sessionId: p.sessionId }));
+                            return this.wrapOtpCall(() => Api.instance.verifyOTP(wt, p.mobile, p.otp, {
+                                sessionId: p.sessionId,
+                                ...(p.password ? { password: p.password } : {}),
+                            }));
                         }}
                         onSuccess={this.onOtpBindSuccess('showAmazonPayPersonalBind', 'Amazon Pay bound successfully')}
                         onError={() => {}}
@@ -1054,10 +1057,6 @@ export default class HomeScreen extends Component<any, HomeScreenState> {
                 bounces={false}
             >
                 {groups.map(({ walletType, items }) => {
-                    if (items.length === 1) {
-                        return this.renderWalletItem(items[0]);
-                    }
-
                     const expanded = !!expandedBoundWalletGroups[walletType];
                     const color = WALLET_TYPE_COLORS[walletType] ?? '#888';
 
@@ -1079,7 +1078,7 @@ export default class HomeScreen extends Component<any, HomeScreenState> {
                                 </View>
                                 <View style={{ flex: 1, marginLeft: 12 }}>
                                     <Text style={s.boundWalletGroupTitle}>{formatWalletTypeLabel(walletType)}</Text>
-                                    <Text style={s.boundWalletGroupSub}>{items.length} accounts</Text>
+                                    <Text style={s.boundWalletGroupSub}>{items.length} account{items.length > 1 ? 's' : ''}</Text>
                                 </View>
                                 <Text style={s.walletGroupChevron}>{expanded ? '▼' : '▶'}</Text>
                             </TouchableOpacity>
diff --git a/screens/TestScreen.tsx b/screens/TestScreen.tsx
index 26edf44..e206908 100644
--- a/screens/TestScreen.tsx
+++ b/screens/TestScreen.tsx
@@ -7,6 +7,7 @@ import {
     openMobikwikPayToBank,
     openPhonePePayToBank,
     openFreechargePayToBank,
+    openAmazonPayPayToBank,
 } from 'rnwalletman';
 
 export default function TestScreen() {
@@ -51,6 +52,12 @@ export default function TestScreen() {
             .catch((err: unknown) => Alert.alert('Error', String(err)));
     };
 
+    const handleAmazonPayPayToBank = () => {
+        openAmazonPayPayToBank()
+            .then((result: boolean) => console.log('Amazon Pay To Bank', result ? 'Success' : 'Failed'))
+            .catch((err: unknown) => Alert.alert('Error', String(err)));
+    };
+
     return (
         <View style={styles.container}>
             <Text style={styles.sectionTitle}>Test Tools</Text>
@@ -67,6 +74,9 @@ export default function TestScreen() {
             <TouchableOpacity style={[styles.btn, { backgroundColor: '#5468db' }]} onPress={handleFreechargePayToBank}>
                 <Text style={styles.btnText}>Freecharge Pay To Bank Test</Text>
             </TouchableOpacity>
+            <TouchableOpacity style={[styles.btn, { backgroundColor: '#ff9900' }]} onPress={handleAmazonPayPayToBank}>
+                <Text style={styles.btnText}>Amazon Pay To Bank Test</Text>
+            </TouchableOpacity>
             <TouchableOpacity style={[styles.btn, { backgroundColor: '#3498db' }]} onPress={handleEcho}>
                 <Text style={styles.btnText}>Echo Test</Text>
             </TouchableOpacity>