Merge branch 'feature/detail-op' into gray

@@ -253,7 +253,9 @@ module.exports = class extends global.yoho.BaseModel {
     // 根据small_sort从redis获取分类下的关键词
     _getRecommendKeywords(smallSort, skn) { // eslint-disable-line
         return redis.all([['get', `global:yoho:seo:keywords:sortId:${smallSort}:page`]]).then(res => {
-            return redis.all([['get', `global:yoho:seo:keywords:sortId:${smallSort}:page:${res[0] || 1}`]]);
+            return redis.all([
+                ['get', `global:yoho:seo:keywords:sortId:${smallSort}:page:${ _.random(1, res[0]) || 1}`]
+            ]);
         }).then(res => {
             return this._getKeywordsInfo(JSON.parse(res[0] || '[]'));
         });