优化提现逻辑，修正可提现金额计算方式，确保准确反映累计佣金、已提现金额和待审核金额。同时，更新小程序界面，调整可提现金额的显示和按钮状态判断，提升用户体验。

miniprogram/pages/referral/referral.js

@@ -24,7 +24,8 @@ Page({
     
     // === 收益数据 ===
     totalCommission: 0,   // 累计佣金总额（所有获得的佣金）
-    availableEarnings: 0, // 可提现金额（未申请提现的佣金）
+    availableEarnings: 0, // 可提现金额（未申请提现的佣金）- 字符串格式用于显示
+    availableEarningsNum: 0, // 可提现金额 - 数字格式用于判断
     pendingWithdrawAmount: 0, // 待审核金额（已申请提现但未审核）
     withdrawnEarnings: 0, // 已提现金额
     earnings: 0,          // 已结算收益（保留兼容）
@@ -151,6 +152,22 @@ Page({
         return typeof num === 'number' ? num.toFixed(2) : '0.00'
       }
       
+      // ✅ 修正：可提现金额 = 累计佣金 - 已提现金额 - 待审核金额
+      const totalCommissionNum = realData?.totalCommission || 0
+      const withdrawnNum = realData?.withdrawnEarnings || 0
+      const pendingWithdrawNum = realData?.pendingWithdrawAmount || 0
+      const availableEarningsNum = totalCommissionNum - withdrawnNum - pendingWithdrawNum
+      const minWithdrawAmount = realData?.minWithdrawAmount || 10
+      
+      console.log('=== [Referral] 收益计算（完整版）===')
+      console.log('累计佣金 (totalCommission):', totalCommissionNum)
+      console.log('已提现金额 (withdrawnEarnings):', withdrawnNum)
+      console.log('待审核金额 (pendingWithdrawAmount):', pendingWithdrawNum)
+      console.log('可提现金额 = 累计 - 已提现 - 待审核 =', totalCommissionNum, '-', withdrawnNum, '-', pendingWithdrawNum, '=', availableEarningsNum)
+      console.log('最低提现金额 (minWithdrawAmount):', minWithdrawAmount)
+      console.log('按钮判断:', availableEarningsNum, '>=', minWithdrawAmount, '=', availableEarningsNum >= minWithdrawAmount)
+      console.log('✅ 按钮应该:', availableEarningsNum >= minWithdrawAmount ? '🟢 启用(绿色)' : '⚫ 禁用(灰色)')
+      
       this.setData({
         isLoggedIn: true,
         userInfo,
@@ -163,14 +180,15 @@ Page({
         expiredCount,
         
         // 收益数据 - 格式化为两位小数
-        totalCommission: formatMoney(realData?.totalCommission || 0),
-        availableEarnings: formatMoney(realData?.availableEarnings || 0),
-        pendingWithdrawAmount: formatMoney(realData?.pendingWithdrawAmount || 0),
+        totalCommission: formatMoney(totalCommissionNum),
+        availableEarnings: formatMoney(availableEarningsNum),  // ✅ 使用计算后的可提现金额
+        availableEarningsNum: availableEarningsNum,  // ✅ 数字格式用于按钮判断
+        pendingWithdrawAmount: formatMoney(pendingWithdrawNum),
         withdrawnEarnings: formatMoney(realData?.withdrawnEarnings || 0),
         earnings: formatMoney(realData?.earnings || 0),
         pendingEarnings: formatMoney(realData?.pendingEarnings || 0),
         shareRate: realData?.shareRate || 90,
-        minWithdrawAmount: realData?.minWithdrawAmount || 10,
+        minWithdrawAmount: minWithdrawAmount,
         
         // 统计
         referralCount: realData?.referralCount || realData?.stats?.totalBindings || activeBindings.length + convertedBindings.length,
@@ -206,6 +224,15 @@ Page({
       console.log('[Referral] - 即将过期:', this.data.expiringCount)
       console.log('[Referral] - 收益:', this.data.earnings)
       
+      console.log('=== [Referral] 按钮状态验证 ===')
+      console.log('累计佣金 (totalCommission):', this.data.totalCommission)
+      console.log('待审核金额 (pendingWithdrawAmount):', this.data.pendingWithdrawAmount)
+      console.log('可提现金额 (availableEarnings 显示):', this.data.availableEarnings)
+      console.log('可提现金额 (availableEarningsNum 判断):', this.data.availableEarningsNum, typeof this.data.availableEarningsNum)
+      console.log('最低提现金额 (minWithdrawAmount):', this.data.minWithdrawAmount, typeof this.data.minWithdrawAmount)
+      console.log('按钮启用条件:', this.data.availableEarningsNum, '>=', this.data.minWithdrawAmount, '=', this.data.availableEarningsNum >= this.data.minWithdrawAmount)
+      console.log('✅ 最终结果: 按钮应该', this.data.availableEarningsNum >= this.data.minWithdrawAmount ? '🟢 启用' : '⚫ 禁用')
+      
       // 隐藏加载提示
       wx.hideLoading()
     } else {
@@ -583,9 +610,16 @@ Page({
 
   // 提现 - 直接到微信零钱
   async handleWithdraw() {
-    const availableEarnings = parseFloat(this.data.availableEarnings) || 0
+    // 使用数字版本直接进行判断，避免重复转换
+    const availableEarnings = this.data.availableEarningsNum || 0
     const minWithdrawAmount = this.data.minWithdrawAmount || 10
     
+    console.log('[Withdraw] 提现检查:', {
+      availableEarnings,
+      minWithdrawAmount,
+      shouldEnable: availableEarnings >= minWithdrawAmount
+    })
+    
     if (availableEarnings <= 0) {
       wx.showToast({ title: '暂无可提现收益', icon: 'none' })
       return
@@ -634,13 +668,13 @@ Page({
       
       if (res.success) {
         wx.showModal({
-          title: '提现成功 🎉',
-          content: `¥${amount.toFixed(2)} 已到账您的微信零钱`,
+          title: '提现申请已提交 ✅',
+          content: res.message || '正在审核中，通过后会自动到账您的微信零钱',
           showCancel: false,
-          confirmText: '好的'
+          confirmText: '知道了'
         })
         
-        // 刷新数据
+        // 刷新数据（此时待审核金额会增加，可提现金额会减少）
         this.initData()
       } else {
         if (res.needBind) {
@@ -655,7 +689,7 @@ Page({
             }
           })
         } else {
-          wx.showToast({ title: res.error || '提现失败', icon: 'none' })
+          wx.showToast({ title: res.message || res.error || '提现失败', icon: 'none', duration: 3000 })
         }
       }
     } catch (e) {
@@ -728,7 +762,7 @@ Page({
     })
 
     // 如果开启，检查当前金额是否达到阈值
-    if (enabled && parseFloat(this.data.availableEarnings) >= threshold) {
+    if (enabled && this.data.availableEarningsNum >= threshold) {
       wx.showModal({
         title: '提示',
         content: `当前可提现金额¥${this.data.availableEarnings}已达到阈值¥${threshold}，是否立即提现？`,

miniprogram/pages/referral/referral.wxml

@@ -40,17 +40,17 @@
               <image class="icon-wallet" src="/assets/icons/wallet.svg" mode="aspectFit"></image>
             </view>
             <view class="earnings-info">
-              <text class="earnings-label">累计佣金</text>
+              <text class="earnings-label">可提现金额</text>
               <text class="commission-rate">{{shareRate}}% 返利</text>
             </view>
           </view>
           <view class="earnings-right">
-            <text class="earnings-value">¥{{totalCommission}}</text>
-            <text class="pending-text">待审核: ¥{{pendingWithdrawAmount}}</text>
+            <text class="earnings-value">¥{{availableEarnings}}</text>
+            <text class="pending-text">累计: ¥{{totalCommission}} | 待审核: ¥{{pendingWithdrawAmount}}</text>
           </view>
         </view>
-        <view class="withdraw-btn {{availableEarnings < minWithdrawAmount ? 'btn-disabled' : ''}}" bindtap="handleWithdraw">
-          {{availableEarnings < minWithdrawAmount ? '满' + minWithdrawAmount + '元可提现' : '申请提现 ¥' + availableEarnings}}
+        <view class="withdraw-btn {{availableEarningsNum < minWithdrawAmount ? 'btn-disabled' : ''}}" bindtap="handleWithdraw">
+          {{availableEarningsNum < minWithdrawAmount ? '满' + minWithdrawAmount + '元可提现' : '申请提现 ¥' + availableEarnings}}
         </view>
       </view>
     </view>