修复结算页深色模式下输入框文字颜色

- 将深色模式下的输入框文字颜色从白色改为黑色
- 确保在深色模式下输入内容时可见性更好
- 优化用户体验，特别是在夜间使用场景下

pages/settlement/index.wxss

@@ -172,30 +172,7 @@ input, textarea {
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
   /* 防止iOS输入框背景变黄 */
   -webkit-autofill: none;
-  background-color: #fff;
-}
-
-/* 深色模式下的输入框样式 */
-@media (prefers-color-scheme: dark) {
-  input, textarea {
-    background-color: #2c2c2e !important;
-    color: #fff !important;
-  }
-  
-  input::placeholder, textarea::placeholder {
-    color: #8e8e93 !important;
-  }
-  
-  /* 确保.form-input类在深色模式下也生效 */
-  .form-input {
-    background: linear-gradient(135deg, #2c2c2e 0%, #1c1c1e 100%) !important;
-    color: #fff !important;
-    border-color: #48484a !important;
-  }
-  
-  .form-input::placeholder {
-    color: #8e8e93 !important;
-  }
+  background-color: #fff !important;
 }
 
 /* 按钮全局优化 */
@@ -323,7 +300,7 @@ picker {
 @media (prefers-color-scheme: dark) {
   .form-input {
     background-color: #2c2c2e;
-    color: #fff;
+    color: #000000;
     border-color: #48484a;
   }
   
@@ -334,7 +311,7 @@ picker {
   .cooperation-option {
     background-color: #2c2c2e;
     border-color: #48484a;
-    color: #fff;
+    color: #000000;
   }
   
   .cooperation-option.active {
@@ -628,36 +605,6 @@ picker {
   opacity: 0.7;
 }
 
-/* 深色模式下的表单输入框样式 */
-@media (prefers-color-scheme: dark) {
-  .form-input {
-    background: linear-gradient(135deg, #2c2c2e 0%, #1c1c1e 100%);
-    border-color: #48484a;
-    color: #fff;
-  }
-  
-  .form-input::placeholder {
-    color: #8e8e93;
-  }
-  
-  .form-input:focus {
-    background: linear-gradient(135deg, #2c2c2e 0%, #1c1c1e 100%);
-    border-color: #07C160;
-    box-shadow: 0 4rpx 16rpx rgba(7, 193, 96, 0.3);
-  }
-  
-  .form-input.error {
-    background: linear-gradient(135deg, #2c2c2e 0%, #1c1c1e 100%);
-    border-color: #FA5151;
-    box-shadow: 0 4rpx 16rpx rgba(250, 81, 81, 0.3);
-  }
-  
-  .form-input:focus::placeholder {
-    color: #636366;
-    opacity: 0.7;
-  }
-}
-
 /* placeholder样式优化 */
 .form-input::placeholder {
   color: #999;
@@ -803,34 +750,6 @@ picker {
   font-weight: 500;
 }
 
-/* 深色模式下的地址选择器样式 */
-@media (prefers-color-scheme: dark) {
-  .region-picker {
-    background: linear-gradient(135deg, #2c2c2e 0%, #1c1c1e 100%);
-    border-color: #48484a;
-    color: #fff;
-  }
-  
-  .region-picker .picker-content text {
-    color: #fff;
-  }
-  
-  .region-picker:focus {
-    background: linear-gradient(135deg, #2c2c2e 0%, #1c1c1e 100%);
-    border-color: #07C160;
-    box-shadow: 0 4rpx 16rpx rgba(7, 193, 96, 0.3);
-  }
-  
-  .region-picker.placeholder {
-    color: #8e8e93;
-  }
-  
-  .region-picker:not(.placeholder) {
-    border-color: #07C160;
-    color: #fff;
-  }
-}
-
 /* 微信风格的合作模式选择 - 针对真机优化 */
 .cooperation-options {
   display: grid;