diff --git a/assets/img/home/home7.png b/assets/img/home/home7.png
new file mode 100644
index 0000000..71d16c1
Binary files /dev/null and b/assets/img/home/home7.png differ
diff --git a/pages/base/home.vue b/pages/base/home.vue
index 434904d..fe8a14e 100644
--- a/pages/base/home.vue
+++ b/pages/base/home.vue
@@ -314,7 +314,7 @@
 						<view class="currency" style="text-align: center;font-size: 60rpx;">{{$t("homeNewText.a20")}}</view>
 						<view class="currency" style="text-align: center;font-size: 26rpx;margin-top: 10px;">{{$t("homeNewText.a21")}}</view>
 						<view style="display: flex;width: 100%;justify-content: center;margin-top: 40px;">
-							<image src="@/assets/img/home/home4.png" mode="aspectFit" style="width: 670rpx;height: 400rpx;"></image>
+							<image src="@/assets/img/home/home7.png" mode="aspectFit" style="width: 670rpx;height: 400rpx;"></image>
 						</view>
 						<a href="https://app.btcoinmt.com/download/BTCoinmt.html" style="display: block;width: 100%;text-decoration: none;">
 						<view class="store_view">
diff --git a/pages/exchange/contract-history.vue b/pages/exchange/contract-history.vue
index 030e16c..c8f3014 100644
--- a/pages/exchange/contract-history.vue
+++ b/pages/exchange/contract-history.vue
@@ -47,7 +47,7 @@
           </div>
           <div class="row d-flex m-y-mini justify-between">
             <div class="label fn-sm">{{$t('contract.c7')}}</div>
-            <div class="color-light">{{item.profit*1||'--'}}</div>
+            <div :class="profitColor(item)" >{{item.profit*1||'--'}}</div>
           </div>
           <div class="row d-flex m-y-mini justify-between">
             <div class="label fn-sm">{{$t('contract.b3')}}</div>
@@ -360,7 +360,15 @@ export default {
         myCanvas.width=0
         myCanvas.height=0
     },
-
+	profitColor(item){
+		if (item&&item.profit&&item.profit.startsWith('-')) {
+			return 'red';
+		}else if(item.profit==null){
+			return 'white';
+		}else{
+			return 'green';
+		}
+	}
   },
     mounted() {
       // this.generalizeInfo()
@@ -404,4 +412,13 @@ export default {
   /deep/ .share.vant-popup-index{
       z-index: 100;
   }
+  .red{
+  	color: red;
+  }
+  .green{
+  	color: green;
+  }
+  .white{
+  	color: white;
+  }
 </style>
diff --git a/pages/reg/index.vue b/pages/reg/index.vue
index a148ed4..909ce06 100644
--- a/pages/reg/index.vue
+++ b/pages/reg/index.vue
@@ -210,10 +210,10 @@ export default {
         }
         return;
       }
-			if (!this.form.invite_code) {
-				this.$toast(this.$t('reg.c7'));
-				return;
-			}
+			// if (!this.form.invite_code) {
+			// 	this.$toast(this.$t('reg.c7'));
+			// 	return;
+			// }
       this.form.type=this.form.type
       this.form.country_code = this.country_code || 86;