diff --git a/resources/views/chat/partials/input-bar.blade.php b/resources/views/chat/partials/input-bar.blade.php
index 7ea215b..95fd341 100644
--- a/resources/views/chat/partials/input-bar.blade.php
+++ b/resources/views/chat/partials/input-bar.blade.php
@@ -90,6 +90,9 @@
             <button type="button" id="fishing-btn" onclick="startFishing()"
                 style="font-size: 11px; padding: 1px 6px; background: #2563eb; color: #fff; border: none; border-radius: 2px; cursor: pointer;">🎣
                 钓鱼</button>
+            <button type="button" onclick="location.reload()"
+                style="font-size: 11px; padding: 1px 6px; background: #64748b; color: #fff; border: none; border-radius: 2px; cursor: pointer;">🔄
+                清屏</button>
         </div>
 
         {{-- 第二行：输入框 + 发送 --}}
diff --git a/resources/views/chat/partials/scripts.blade.php b/resources/views/chat/partials/scripts.blade.php
index 4bcf3bc..0b89c6d 100644
--- a/resources/views/chat/partials/scripts.blade.php
+++ b/resources/views/chat/partials/scripts.blade.php
@@ -263,9 +263,15 @@
 
         const timeStr = msg.sent_at || '';
 
-        // 用户名（单击切换发言对象，双击查看资料）
-        const clickableUser = (uName, color) =>
-            `<span class="msg-user" style="color: ${color}; cursor: pointer;" onclick="switchTarget('${uName}')" ondblclick="showUserInfoInSay2('${uName}')">${uName}</span>`;
+        // 系统用户名列表（不可被选为聊天对象）
+        const systemUsers = ['钓鱼播报', '星海小博士', '系统传音', '系统公告'];
+        // 用户名（单击切换发言对象，双击查看资料；系统用户仅显示文本）
+        const clickableUser = (uName, color) => {
+            if (systemUsers.includes(uName)) {
+                return `<span class="msg-user" style="color: ${color};">${uName}</span>`;
+            }
+            return `<span class="msg-user" style="color: ${color}; cursor: pointer;" onclick="switchTarget('${uName}')" ondblclick="showUserInfoInSay2('${uName}')">${uName}</span>`;
+        };
 
         // 获取发言者头像
         const senderInfo = onlineUsers[msg.from_user];
@@ -275,7 +281,11 @@
 
         let html = '';
 
-        if (msg.is_secret) {
+        // 系统用户消息直接显示为公告（不显示「对大家说：」）
+        if (systemUsers.includes(msg.from_user)) {
+            html =
+                `${headImg}<span class="msg-user" style="color: ${fontColor}; font-weight: bold;">${msg.from_user}：</span><span class="msg-content" style="color: ${fontColor}">${msg.content}</span>`;
+        } else if (msg.is_secret) {
             // 悄悄话样式（原版：紫色斜体）
             html =
                 `<span class="msg-secret">${headImg}${clickableUser(msg.from_user, '#cc00cc')}对${clickableUser(msg.to_user, '#cc00cc')}`;