style: 1. (ve-dropdown-dt-selected) hover 后颜色不使用 primary 颜色

2. (ve-dropdown-items-li) a 标签去除下划线
3. (ve-dropdown-items) 边框颜色自定义

Author: Aruelius

packages/style/ve-dropdown.less

@@ -25,8 +25,8 @@
         line-height: 32px;
 
         &:hover {
-            color: @ve-primary-color;
-            border-color: @ve-primary-color;
+            color: @ve-dropdown-item-hover-text-color;
+            border-color: @ve-dropdown-item-hover-text-color;
         }
 
         .ve-dropdown-dt-selected-span {
@@ -85,7 +85,7 @@
             background-color: @ve-dropdown-background-color;
             box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12),
                 0 0 6px rgba(0, 0, 0, 0.04);
-            border: 1px solid #d1dbe5;
+            border: 1px solid @ve-dropdown-item-border-color;
 
             padding: 5px 0px;
             width: auto;
@@ -95,6 +95,9 @@
 
                 /* 单选 */
                 .ve-dropdown-items-li {
+                    a {
+                        text-decoration: none;
+                    }
                     white-space: nowrap;
                     font-size: 14px;
                     height: 32px;