style(web): 统一辣椒红主色与菜单层级

src/views/Login/Login.vue

@@ -129,7 +129,7 @@ const themeChange = () => {
   font-size: 13px;
   font-weight: 600;
   letter-spacing: 0.08em;
-  color: #d9ecff !important;
+  color: var(--el-color-primary-light-8) !important;
 }
 
 .login-panel {