diff --git a/src/pages/ChatPage.scss b/src/pages/ChatPage.scss
index 0c30aa2..4ccdd2b 100644
--- a/src/pages/ChatPage.scss
+++ b/src/pages/ChatPage.scss
@@ -4137,55 +4137,51 @@
 // 消息信息弹窗
 .message-info-overlay {
   position: fixed;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  background: rgba(0, 0, 0, 0.6);
+  inset: 0;
+  background: rgba(0, 0, 0, 0.4);
   backdrop-filter: blur(4px);
+  z-index: 2000;
   display: flex;
   align-items: center;
   justify-content: center;
-  z-index: 2000;
-  padding: 20px;
 }
 
 .message-info-modal {
-  width: 520px;
+  width: 360px;
   max-width: 90vw;
   max-height: 80vh;
   background: var(--card-bg);
+  border: 1px solid var(--border-color);
   border-radius: 12px;
-  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
   display: flex;
   flex-direction: column;
+  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
   overflow: hidden;
 
-  .modal-header {
+  .detail-header {
     display: flex;
     align-items: center;
     justify-content: space-between;
-    padding: 16px 20px;
+    padding: 16px;
     border-bottom: 1px solid var(--border-color);
 
-    h3 {
-      font-size: 16px;
+    h4 {
+      font-size: 15px;
       font-weight: 600;
       color: var(--text-primary);
+      margin: 0;
     }
 
     .close-btn {
-      width: 28px;
-      height: 28px;
+      background: none;
       border: none;
-      background: transparent;
-      border-radius: 6px;
+      padding: 4px;
       cursor: pointer;
+      color: var(--text-secondary);
+      border-radius: 6px;
       display: flex;
       align-items: center;
       justify-content: center;
-      color: var(--text-tertiary);
-      transition: all 0.2s;
 
       &:hover {
         background: var(--bg-hover);
@@ -4194,56 +4190,98 @@
     }
   }
 
-  .modal-body {
+  .detail-content {
     flex: 1;
     overflow-y: auto;
-    padding: 16px 20px;
+    padding: 16px;
+
+    &::-webkit-scrollbar { width: 4px; }
+    &::-webkit-scrollbar-thumb { background: var(--text-tertiary); border-radius: 2px; }
   }
 
-  .info-section {
-    margin-bottom: 16px;
+  .detail-section {
+    margin-bottom: 20px;
+    &:last-child { margin-bottom: 0; }
 
-    h4 {
-      font-size: 13px;
+    .section-title {
+      display: flex;
+      align-items: center;
+      gap: 6px;
+      font-size: 12px;
       font-weight: 600;
       color: var(--text-secondary);
-      margin: 0 0 8px 0;
-    }
-  }
+      margin-bottom: 12px;
+      letter-spacing: 0.5px;
 
-  .info-grid {
-    display: flex;
-    flex-direction: column;
-    gap: 6px;
-  }
+      svg { opacity: 0.7; }
 
-  .info-item {
-    display: flex;
-    align-items: baseline;
-    gap: 8px;
-    font-size: 13px;
-
-    .label {
-      color: var(--text-tertiary);
-      min-width: 80px;
-      flex-shrink: 0;
-    }
-
-    .value {
-      color: var(--text-primary);
-      word-break: break-all;
-
-      &.code {
-        font-family: monospace;
-        font-size: 12px;
-        background: var(--bg-tertiary);
-        padding: 2px 6px;
+      .copy-btn {
+        margin-left: auto;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        width: 22px;
+        height: 22px;
+        padding: 0;
+        border: none;
         border-radius: 4px;
+        background: transparent;
+        color: var(--text-tertiary);
+        cursor: pointer;
+        &:hover { background: var(--bg-secondary); color: var(--text-primary); }
       }
     }
   }
 
-  .raw-content-container {
+  .detail-item {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    padding: 8px 0;
+    border-bottom: 1px solid var(--border-color);
+    font-size: 13px;
+
+    &:last-child { border-bottom: none; }
+
+    svg { color: var(--text-tertiary); flex-shrink: 0; }
+
+    .label { color: var(--text-secondary); flex-shrink: 0; }
+
+    .value {
+      flex: 1;
+      text-align: right;
+      color: var(--text-primary);
+      word-break: break-all;
+      user-select: text;
+
+      &.highlight { color: var(--primary); font-weight: 600; }
+      &.mono { font-family: 'Consolas', 'Monaco', monospace; font-size: 12px; }
+    }
+
+    .copy-btn {
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      width: 22px;
+      height: 22px;
+      padding: 0;
+      border: none;
+      border-radius: 4px;
+      background: transparent;
+      color: var(--text-tertiary);
+      cursor: pointer;
+      flex-shrink: 0;
+      opacity: 0;
+      transition: opacity 0.15s, color 0.15s, background 0.15s;
+
+      &:hover { background: var(--bg-secondary); color: var(--text-primary); }
+      svg { color: inherit; }
+    }
+
+    &:hover .copy-btn { opacity: 1; }
+  }
+
+  .raw-content-box {
     background: var(--bg-tertiary);
     border-radius: 8px;
     padding: 12px;
@@ -4252,15 +4290,12 @@
 
     pre {
       margin: 0;
-      font-size: 12px;
-      font-family: monospace;
-      color: var(--text-primary);
       white-space: pre-wrap;
       word-break: break-all;
+      font-family: 'Consolas', 'Monaco', monospace;
+      font-size: 12px;
+      color: var(--text-primary);
+      user-select: text;
     }
   }
-
-  .select-text {
-    user-select: text;
-  }
 }
\ No newline at end of file
diff --git a/src/pages/ChatPage.tsx b/src/pages/ChatPage.tsx
index 05fddde..b795fe4 100644
--- a/src/pages/ChatPage.tsx
+++ b/src/pages/ChatPage.tsx
@@ -2749,71 +2749,121 @@ function ChatPage(_props: ChatPageProps) {
       {showMessageInfo && createPortal(
         <div className="message-info-overlay" onClick={() => setShowMessageInfo(null)}>
           <div className="message-info-modal" onClick={(e) => e.stopPropagation()}>
-            <div className="modal-header">
-              <div style={{ display: 'flex', alignItems: 'center', gap: '8px' }}>
-                <Info size={18} />
-                <h3 style={{ margin: 0 }}>消息详细信息</h3>
-              </div>
+            <div className="detail-header">
+              <h4>消息详情</h4>
               <button className="close-btn" onClick={() => setShowMessageInfo(null)}>
-                <X size={18} />
+                <X size={16} />
               </button>
             </div>
-            <div className="modal-body">
-              <div className="info-section">
-                <h4>基础字段</h4>
-                <div className="info-grid">
-                  <div className="info-item"><span className="label">Local ID</span><span className="value select-text">{showMessageInfo.localId}</span></div>
-                  <div className="info-item"><span className="label">Server ID</span><span className="value select-text">{showMessageInfo.serverId}</span></div>
-                  <div className="info-item"><span className="label">Local Type</span><span className="value select-text">{showMessageInfo.localType}</span></div>
-                  <div className="info-item"><span className="label">发送者</span><span className="value select-text">{showMessageInfo.senderUsername || '-'}</span></div>
-                  <div className="info-item"><span className="label">创建时间</span><span className="value select-text">{new Date(showMessageInfo.createTime * 1000).toLocaleString()} ({showMessageInfo.createTime})</span></div>
-                  <div className="info-item"><span className="label">发送状态</span><span className="value select-text">{showMessageInfo.isSend === 1 ? '发送' : '接收'}</span></div>
+            <div className="detail-content">
+              <div className="detail-section">
+                <div className="detail-item">
+                  <Hash size={14} />
+                  <span className="label">Local ID</span>
+                  <span className="value">{showMessageInfo.localId}</span>
+                  <button className="copy-btn" title="复制" onClick={() => handleCopyField(String(showMessageInfo.localId), 'msgLocalId')}>
+                    {copiedField === 'msgLocalId' ? <Check size={12} /> : <Copy size={12} />}
+                  </button>
+                </div>
+                <div className="detail-item">
+                  <Hash size={14} />
+                  <span className="label">Server ID</span>
+                  <span className="value">{showMessageInfo.serverId}</span>
+                </div>
+                <div className="detail-item">
+                  <span className="label">消息类型</span>
+                  <span className="value highlight">{showMessageInfo.localType}</span>
+                </div>
+                <div className="detail-item">
+                  <span className="label">发送者</span>
+                  <span className="value">{showMessageInfo.senderUsername || '-'}</span>
+                  {showMessageInfo.senderUsername && (
+                    <button className="copy-btn" title="复制" onClick={() => handleCopyField(showMessageInfo.senderUsername!, 'msgSender')}>
+                      {copiedField === 'msgSender' ? <Check size={12} /> : <Copy size={12} />}
+                    </button>
+                  )}
+                </div>
+                <div className="detail-item">
+                  <Calendar size={14} />
+                  <span className="label">创建时间</span>
+                  <span className="value">{new Date(showMessageInfo.createTime * 1000).toLocaleString()}</span>
+                </div>
+                <div className="detail-item">
+                  <span className="label">发送状态</span>
+                  <span className="value">{showMessageInfo.isSend === 1 ? '发送' : '接收'}</span>
                 </div>
               </div>
 
-              {showMessageInfo.imageMd5 && (
-                <div className="info-section">
-                  <h4>图片信息</h4>
-                  <div className="info-grid">
-                    <div className="info-item"><span className="label">Image MD5</span><span className="value select-text code">{showMessageInfo.imageMd5}</span></div>
-                    {showMessageInfo.imageDatName && <div className="info-item"><span className="label">DAT 文件名</span><span className="value select-text code">{showMessageInfo.imageDatName}</span></div>}
-                  </div>
-                </div>
-              )}
-
-              {showMessageInfo.videoMd5 && (
-                <div className="info-section">
-                  <h4>视频信息</h4>
-                  <div className="info-grid">
-                    <div className="info-item"><span className="label">Video MD5</span><span className="value select-text code">{showMessageInfo.videoMd5}</span></div>
-                  </div>
-                </div>
-              )}
-
-              {showMessageInfo.voiceDurationSeconds != null && (
-                <div className="info-section">
-                  <h4>语音信息</h4>
-                  <div className="info-grid">
-                    <div className="info-item"><span className="label">时长</span><span className="value select-text">{showMessageInfo.voiceDurationSeconds}秒</span></div>
+              {(showMessageInfo.imageMd5 || showMessageInfo.videoMd5 || showMessageInfo.voiceDurationSeconds != null) && (
+                <div className="detail-section">
+                  <div className="section-title">
+                    <ImageIcon size={14} />
+                    <span>媒体信息</span>
                   </div>
+                  {showMessageInfo.imageMd5 && (
+                    <div className="detail-item">
+                      <span className="label">Image MD5</span>
+                      <span className="value mono">{showMessageInfo.imageMd5}</span>
+                      <button className="copy-btn" title="复制" onClick={() => handleCopyField(showMessageInfo.imageMd5!, 'imgMd5')}>
+                        {copiedField === 'imgMd5' ? <Check size={12} /> : <Copy size={12} />}
+                      </button>
+                    </div>
+                  )}
+                  {showMessageInfo.imageDatName && (
+                    <div className="detail-item">
+                      <span className="label">DAT 文件</span>
+                      <span className="value mono">{showMessageInfo.imageDatName}</span>
+                    </div>
+                  )}
+                  {showMessageInfo.videoMd5 && (
+                    <div className="detail-item">
+                      <span className="label">Video MD5</span>
+                      <span className="value mono">{showMessageInfo.videoMd5}</span>
+                      <button className="copy-btn" title="复制" onClick={() => handleCopyField(showMessageInfo.videoMd5!, 'vidMd5')}>
+                        {copiedField === 'vidMd5' ? <Check size={12} /> : <Copy size={12} />}
+                      </button>
+                    </div>
+                  )}
+                  {showMessageInfo.voiceDurationSeconds != null && (
+                    <div className="detail-item">
+                      <Mic size={14} />
+                      <span className="label">语音时长</span>
+                      <span className="value">{showMessageInfo.voiceDurationSeconds}秒</span>
+                    </div>
+                  )}
                 </div>
               )}
 
               {(showMessageInfo.emojiMd5 || showMessageInfo.emojiCdnUrl) && (
-                <div className="info-section">
-                  <h4>表情包信息</h4>
-                  <div className="info-grid">
-                    {showMessageInfo.emojiMd5 && <div className="info-item"><span className="label">MD5</span><span className="value select-text code">{showMessageInfo.emojiMd5}</span></div>}
-                    {showMessageInfo.emojiCdnUrl && <div className="info-item"><span className="label">CDN URL</span><span className="value select-text code break-all">{showMessageInfo.emojiCdnUrl}</span></div>}
+                <div className="detail-section">
+                  <div className="section-title">
+                    <span>表情包信息</span>
                   </div>
+                  {showMessageInfo.emojiMd5 && (
+                    <div className="detail-item">
+                      <span className="label">MD5</span>
+                      <span className="value mono">{showMessageInfo.emojiMd5}</span>
+                    </div>
+                  )}
+                  {showMessageInfo.emojiCdnUrl && (
+                    <div className="detail-item">
+                      <span className="label">CDN URL</span>
+                      <span className="value mono">{showMessageInfo.emojiCdnUrl}</span>
+                    </div>
+                  )}
                 </div>
               )}
 
-              {(showMessageInfo.rawContent || showMessageInfo.content) && (
-                <div className="info-section">
-                  <h4>原始消息内容</h4>
-                  <div className="raw-content-container">
-                    <pre className="select-text">{showMessageInfo.rawContent || showMessageInfo.content}</pre>
+              {showMessageInfo.localType !== 1 && (showMessageInfo.rawContent || showMessageInfo.content) && (
+                <div className="detail-section">
+                  <div className="section-title">
+                    <span>原始消息内容</span>
+                    <button className="copy-btn" title="复制" onClick={() => handleCopyField(showMessageInfo.rawContent || showMessageInfo.content || '', 'rawContent')}>
+                      {copiedField === 'rawContent' ? <Check size={12} /> : <Copy size={12} />}
+                    </button>
+                  </div>
+                  <div className="raw-content-box">
+                    <pre>{showMessageInfo.rawContent || showMessageInfo.content}</pre>
                   </div>
                 </div>
               )}