很多站长在给 Discourse 添加自定义表情之后，会发现表情选择器里依然充满了系统自带的分类（比如「笑脸和情感」「人物」「动物和自然」等等），显得冗余。
本文分享一个简单的办法，通过 CSS 就能 隐藏系统自带的分类，只保留常用和你上传的自定义表情包。
操作步骤
1. 打开主题自定义
进入：
管理后台 → 自定义 → 主题 → 编辑 → CSS
2. 粘贴以下 CSS
/* 1) 侧栏按钮隐藏 */
.emoji-picker__section-btn[data-section="smileys_&_emotion"],
.emoji-picker__section-btn[data-section="people_&_body"],
.emoji-picker__section-btn[data-section="animals_&_nature"],
.emoji-picker__section-btn[data-section="food_&_drink"],
.emoji-picker__section-btn[data-section="travel_&_places"],
.emoji-picker__section-btn[data-section="activities"],
.emoji-picker__section-btn[data-section="objects"],
.emoji-picker__section-btn[data-section="symbols"],
.emoji-picker__section-btn[data-section="flags"] { display: none !important; }
/* 2) 内容区隐藏 —— 兼容你这版的 .emoji-picker__section，以及老版的 .emoji-picker__category / .emoji-category */
.emoji-picker__section[data-section="smileys_&_emotion"],
.emoji-picker__section[data-section="people_&_body"],
.emoji-picker__section[data-section="animals_&_nature"],
.emoji-picker__section[data-section="food_&_drink"],
.emoji-picker__section[data-section="travel_&_places"],
.emoji-picker__section[data-section="activities"],
.emoji-picker__section[data-section="objects"],
.emoji-picker__section[data-section="symbols"],
.emoji-picker__section[data-section="flags"],
.emoji-picker__category[data-section="smileys_&_emotion"],
.emoji-picker__category[data-section="people_&_body"],
.emoji-picker__category[data-section="animals_&_nature"],
.emoji-picker__category[data-section="food_&_drink"],
.emoji-picker__category[data-section="travel_&_places"],
.emoji-picker__category[data-section="activities"],
.emoji-picker__category[data-section="objects"],
.emoji-picker__category[data-section="symbols"],
.emoji-picker__category[data-section="flags"],
.emoji-category[data-section="smileys_&_emotion"],
.emoji-category[data-section="people_&_body"],
.emoji-category[data-section="animals_&_nature"],
.emoji-category[data-section="food_&_drink"],
.emoji-category[data-section="travel_&_places"],
.emoji-category[data-section="activities"],
.emoji-category[data-section="objects"],
.emoji-category[data-section="symbols"],
.emoji-category[data-section="flags"] { display: none !important; }
/* 3) 兜底：确保“常用”可见（可保留/可删） */
.emoji-picker__section-btn[data-section="favorites"],
.emoji-picker__section[data-section="favorites"],
.emoji-picker__category[data-section="favorites"],
.emoji-category[data-section="favorites"] { display: block !important; }
效果展示
隐藏前：
一堆系统分类 + 你的自定义表情在最下面
隐藏后：
只剩下「常用」和你上传的表情，更清爽简洁
这就是全部操作，非常简单，只需几行 CSS！