diff --git a/public/css/chat.css b/public/css/chat.css
index 28fbe2d..1cf691a 100644
--- a/public/css/chat.css
+++ b/public/css/chat.css
@@ -452,14 +452,10 @@ a:hover {
     line-height: 1;
 }
 
-.user-badge-icon::after {
-    content: attr(data-instant-tooltip);
-    position: absolute;
-    left: calc(100% + 8px);
-    top: 50%;
+.chat-hover-tooltip {
+    position: fixed;
     z-index: 10030;
-    min-width: max-content;
-    max-width: 200px;
+    max-width: min(220px, calc(100vw - 20px));
     padding: 4px 8px;
     border: 1px solid #244d77;
     border-radius: 4px;
@@ -469,33 +465,29 @@ a:hover {
     line-height: 1.35;
     white-space: nowrap;
     box-shadow: 0 6px 18px rgba(17, 34, 51, 0.24);
-    transform: translateY(-50%);
-    opacity: 0;
-    visibility: hidden;
     pointer-events: none;
 }
 
-.user-badge-icon::before {
+.chat-hover-tooltip::after {
     content: '';
     position: absolute;
-    left: calc(100% + 4px);
     top: 50%;
-    z-index: 10031;
     width: 6px;
     height: 6px;
-    border-left: 1px solid #244d77;
-    border-bottom: 1px solid #244d77;
     background: #fff9d8;
     transform: translateY(-50%) rotate(45deg);
-    opacity: 0;
-    visibility: hidden;
-    pointer-events: none;
 }
 
-.user-badge-icon:hover::after,
-.user-badge-icon:hover::before {
-    opacity: 1;
-    visibility: visible;
+.chat-hover-tooltip[data-side="right"]::after {
+    left: -4px;
+    border-left: 1px solid #244d77;
+    border-bottom: 1px solid #244d77;
+}
+
+.chat-hover-tooltip[data-side="left"]::after {
+    right: -4px;
+    border-top: 1px solid #244d77;
+    border-right: 1px solid #244d77;
 }
 
 /* 在线人数统计 */
diff --git a/resources/views/chat/partials/layout/right-panel.blade.php b/resources/views/chat/partials/layout/right-panel.blade.php
index 4baf970..76ace94 100644
--- a/resources/views/chat/partials/layout/right-panel.blade.php
+++ b/resources/views/chat/partials/layout/right-panel.blade.php
@@ -72,3 +72,6 @@
         在线: <strong id="online-count-footer">0</strong> 人
     </div>
 </div>
+
+{{-- 图标悬浮文字提示：脱离滚动容器渲染，避免被右侧名单区域裁切 --}}
+<div id="chat-hover-tooltip" class="chat-hover-tooltip" style="display:none;"></div>
diff --git a/resources/views/chat/partials/scripts.blade.php b/resources/views/chat/partials/scripts.blade.php
index c6d2ddd..70d45e6 100644
--- a/resources/views/chat/partials/scripts.blade.php
+++ b/resources/views/chat/partials/scripts.blade.php
@@ -40,6 +40,8 @@
     const BLOCKED_SYSTEM_SENDERS_STORAGE_KEY = 'chat_blocked_system_senders';
     const CHAT_SOUND_MUTED_STORAGE_KEY = 'chat_sound_muted';
     const BLOCKABLE_SYSTEM_SENDERS = ['钓鱼播报', '星海小博士', '百家乐', '跑马', '神秘箱子'];
+    const hoverTooltip = document.getElementById('chat-hover-tooltip');
+    let activeTooltipTrigger = null;
 
     // ── 消息区：手机端双触发打开用户名片（PC 端靠 ondblclick 内联属性）──
     // span[data-u] 由 clickableUser() 生成，touchend 委托至容器避免每条消息单独绑定
@@ -833,6 +835,105 @@
         }
     }
 
+    /**
+     * 把小气泡提示定位到图标旁边，不侵入右侧名单结构。
+     *
+     * @param {HTMLElement} trigger 当前悬浮的图标元素
+     */
+    function positionHoverTooltip(trigger) {
+        if (!hoverTooltip || !trigger) {
+            return;
+        }
+
+        const offset = 10;
+        const rect = trigger.getBoundingClientRect();
+        const tooltipWidth = hoverTooltip.offsetWidth;
+        const tooltipHeight = hoverTooltip.offsetHeight;
+        const fitsRight = rect.right + offset + tooltipWidth <= window.innerWidth - 8;
+        const side = fitsRight ? 'right' : 'left';
+        const nextLeft = fitsRight
+            ? rect.right + offset
+            : Math.max(8, rect.left - tooltipWidth - offset);
+        const nextTop = Math.min(
+            Math.max(8, rect.top + (rect.height - tooltipHeight) / 2),
+            window.innerHeight - tooltipHeight - 8
+        );
+
+        hoverTooltip.dataset.side = side;
+        hoverTooltip.style.left = `${nextLeft}px`;
+        hoverTooltip.style.top = `${nextTop}px`;
+    }
+
+    /**
+     * 显示图标旁边的小气泡文字提示。
+     *
+     * @param {HTMLElement|null} trigger 当前悬浮的图标元素
+     */
+    function showHoverTooltip(trigger) {
+        if (!hoverTooltip || !trigger) {
+            return;
+        }
+
+        const tooltipText = trigger.dataset.instantTooltip || '';
+        if (!tooltipText) {
+            return;
+        }
+
+        activeTooltipTrigger = trigger;
+        hoverTooltip.textContent = tooltipText;
+        hoverTooltip.style.display = 'block';
+        positionHoverTooltip(trigger);
+    }
+
+    /**
+     * 隐藏图标提示气泡。
+     */
+    function hideHoverTooltip() {
+        if (!hoverTooltip) {
+            return;
+        }
+
+        activeTooltipTrigger = null;
+        hoverTooltip.style.display = 'none';
+        hoverTooltip.textContent = '';
+        delete hoverTooltip.dataset.side;
+    }
+
+    // 通过事件委托处理动态生成的徽章提示，确保 hover 后立刻显示。
+    document.addEventListener('mouseover', (event) => {
+        const trigger = event.target.closest('.user-badge-icon[data-instant-tooltip]');
+        if (!trigger) {
+            return;
+        }
+
+        showHoverTooltip(trigger);
+    });
+
+    document.addEventListener('mouseout', (event) => {
+        const trigger = event.target.closest('.user-badge-icon[data-instant-tooltip]');
+        if (!trigger || trigger !== activeTooltipTrigger) {
+            return;
+        }
+
+        if (event.relatedTarget && trigger.contains(event.relatedTarget)) {
+            return;
+        }
+
+        hideHoverTooltip();
+    });
+
+    window.addEventListener('scroll', () => {
+        if (activeTooltipTrigger) {
+            positionHoverTooltip(activeTooltipTrigger);
+        }
+    }, true);
+
+    window.addEventListener('resize', () => {
+        if (activeTooltipTrigger) {
+            positionHoverTooltip(activeTooltipTrigger);
+        }
+    });
+
     // ── 渲染在线人员列表（支持排序） ──────────────────
     /**
      * 核心渲染函数：将在线用户渲染到指定容器（桌面端名单区和手机端抽屉共用）