Improve card variables

components/card/style/index.less

@@ -2,8 +2,7 @@
 @import "../../style/mixins/index";
 
 @card-prefix-cls: ~"@{ant-prefix}-card";
-@card-padding-base: 24px;
-@card-padding-wider: 32px;
+@card-head-height: 48px;
 
 .@{card-prefix-cls} {
   .reset-component;
@@ -31,6 +30,7 @@
     border-radius: @border-radius-sm @border-radius-sm 0 0;
     .clearfix;
     margin-bottom: -1px; // Fix card grid overflow bug: https://gw.alipayobjects.com/zos/rmsportal/XonYxBikwpgbqIQBeuhk.png
+    min-height: @card-head-height;
 
     &-wrapper {
       display: flex;
@@ -38,7 +38,6 @@
 
     &-title {
       font-size: @font-size-lg;
-      min-height: @card-head-height;
       padding: @card-head-padding 0;
       text-overflow: ellipsis;
       overflow: hidden;
@@ -195,7 +194,6 @@
     background: @background-color-base;
 
     &-title {
-      min-height: @card-inner-head-height;
       padding: @card-inner-head-padding 0;
     }
   }

components/style/themes/default.less

@@ -331,12 +331,12 @@
 
 // Card
 // ---
-@card-head-height: 48px;
-@card-inner-head-height: 46px;
 @card-head-color: @heading-color;
 @card-head-background: @component-background;
 @card-head-padding: 16px;
 @card-inner-head-padding: 12px;
+@card-padding-base: 24px;
+@card-padding-wider: 32px;
 @card-actions-background: @background-color-base;
 
 // Tabs