fix(ecard): 样式修改

src/packages/__VUE/ecard/index.scss

@@ -89,7 +89,7 @@
         input {
           caret-color: $primary-color; //光标颜色
           text-align: right;
-          background: $ecard-bg-color;
+          background: transparent;
           margin-right: 10px;
           outline: 0 none;
           border: 0;
@@ -99,7 +99,7 @@
         .nut-ecard-input {
           caret-color: $primary-color; //光标颜色
           text-align: right;
-          background: $ecard-bg-color;
+          background: transparent;
           margin-right: 10px;
           outline: 0 none;
           border: 0;