Button: fix disabled color wrong when has bottomAction prop

docs/examples-docs/button.md

@@ -74,7 +74,8 @@ Vue.component(Button.name, Button);
 
 :::demo 加载状态
 ```html 
-<van-button loading />
+<van-button loading></van-button>
+<van-button loading type="primary"></van-button>
 ```
 :::
 

packages/coupon-cell/index.vue

@@ -3,8 +3,8 @@
     <van-cell-group>
       <van-cell :title="title" :isLink="editable" @click="$emit('click')">
         <div v-if="coupons[chosenCoupon]">
-          <h2>{{ amount }}</h2>
-          <span>{{ coupons[chosenCoupon].condition }}</span>
+          <div>{{ amount }}</div>
+          <div>{{ coupons[chosenCoupon].condition }}</div>
         </div>
         <template v-else>{{ guide }}</template>
       </van-cell>

packages/vant-css/src/button.css

@@ -36,10 +36,6 @@
     color: $button-default-color;
     background-color: $button-default-background-color;
     border: 1px solid $button-default-border-color;
-
-    &:active {
-      color: $gray-dark;
-    }
   }
 
   &--primary {
@@ -91,12 +87,6 @@
     }
   }
 
-  &--disabled {
-    color: $button-disabled-color;
-    background-color: $button-disabled-background-color;
-    border: 1px solid $button-disabled-border-color;
-  }
-
   &--block {
     width: 100%;
     display: block;
@@ -112,13 +102,14 @@
     color: $bottom-action-button-default-color;
     background-color: $bottom-action-button-default-background-color;
 
-    &:active {
-      color: $white;
-    }
-
     &.van-button--primary {
-      color: $bottom-action-button-primary-color;
       background-color: $bottom-action-button-primary-background-color;
     }
   }
+
+  &--disabled {
+    color: $button-disabled-color;
+    background-color: $button-disabled-background-color;
+    border: 1px solid $button-disabled-border-color;
+  }
 }

packages/vant-css/src/search.css

@@ -32,8 +32,12 @@
     width: 100%;
     height: 14px;
     font-size: 14px;
-    color: $gray-dark;
+    color: $gray-darker;
     border: none;
+
+    &::placeholder {
+      color: $gray-dark;
+    }
   }
 
   &__cancel {