diff --git a/sync.py b/sync.py
index db7023e..0140e24 100644
--- a/sync.py
+++ b/sync.py
@@ -296,7 +296,7 @@ def search_chinese_page(title):
     return None
 
 def create_diff_html(title, en_diff, en_old_lines, en_new_lines, cn_content=None):
-    """创建双语对比的HTML页面 - 使用精确的行号映射"""
+    """创建双语对比的HTML页面 - Word批注风格，英文变更直接显示在对应中文行右侧"""
     # 准备中文内容行
     cn_lines = []
     if cn_content:
@@ -305,6 +305,126 @@ def create_diff_html(title, en_diff, en_old_lines, en_new_lines, cn_content=None
     # 解析diff并获取行号信息
     parsed_diff = parse_diff_with_line_numbers(en_diff) if en_diff else []
 
+    # 构建行号到diff内容的映射 - 科学处理连续diff块
+    en_changes_by_line = {}
+    blank_lines_to_insert = {}  # 记录需要在某行前插入的空白行及其对应的新增内容
+
+    if parsed_diff:
+        i = 0
+        while i < len(parsed_diff):
+            # 收集连续的diff块
+            diff_block = []
+            start_index = i
+
+            # 收集连续的添加/删除操作（跳过hunk和header）
+            while i < len(parsed_diff):
+                item = parsed_diff[i]
+                if item['type'] in ['added', 'removed']:
+                    diff_block.append(item)
+                elif item['type'] in ['hunk', 'header'] or item['type'] == 'context':
+                    if diff_block:  # 如果已经有diff块，就停止
+                        break
+                i += 1
+
+            # 处理连续的diff块
+            if diff_block:
+                # 计算行数平衡
+                line_balance = 0
+                for item in diff_block:
+                    if item['type'] == 'added':
+                        line_balance += 1
+                    elif item['type'] == 'removed':
+                        line_balance -= 1
+
+                # 如果平衡为正数，需要在中文侧添加空白行
+                if line_balance > 0:
+                    # 找到基准行号（第一个操作的行号）
+                    base_line = None
+                    for item in diff_block:
+                        if item['old_line']:  # 优先使用删除行的行号
+                            base_line = item['old_line']
+                            break
+                        elif item['new_line'] and base_line is None:
+                            base_line = item['new_line']
+
+                    if base_line:
+                        # 收集需要分配到空白行的新增内容
+                        additions_for_blank_lines = []
+                        remaining_additions = []
+
+                        for item in diff_block:
+                            if item['type'] == 'added':
+                                additions_for_blank_lines.append(item['content'])
+
+                        # 记录需要插入的空白行和对应的内容
+                        blank_lines_to_insert[base_line] = additions_for_blank_lines
+
+                # 处理具体的diff项
+                j = 0
+                while j < len(diff_block):
+                    item = diff_block[j]
+
+                    # 检查是否是替换操作（删除后紧跟新增）
+                    if (item['type'] == 'removed' and j + 1 < len(diff_block) and
+                        diff_block[j + 1]['type'] == 'added'):
+                        next_item = diff_block[j + 1]
+
+                        # 这是同一行的替换操作
+                        target_line = item['old_line']  # 使用删除行的行号作为目标行号
+
+                        if target_line not in en_changes_by_line:
+                            en_changes_by_line[target_line] = []
+
+                        en_changes_by_line[target_line].append({
+                            'type': 'replaced',
+                            'old_content': item['content'],
+                            'new_content': next_item['content']
+                        })
+
+                        j += 2  # 跳过下一个项目，因为已经处理了
+
+                    # 处理普通的添加操作（不包括需要分配到空白行的）
+                    elif item['type'] == 'added' and item['new_line']:
+                        # 如果这个新增内容已经被分配到空白行，就跳过
+                        if line_balance > 0 and item['content'] in blank_lines_to_insert.get(base_line, []):
+                            j += 1
+                            continue
+
+                        if item['new_line'] not in en_changes_by_line:
+                            en_changes_by_line[item['new_line']] = []
+                        en_changes_by_line[item['new_line']].append({
+                            'type': 'added',
+                            'content': item['content']
+                        })
+                        j += 1
+
+                    # 处理普通的删除操作（没有对应的新增）
+                    elif item['type'] == 'removed' and item['old_line']:
+                        if item['old_line'] not in en_changes_by_line:
+                            en_changes_by_line[item['old_line']] = []
+                        en_changes_by_line[item['old_line']].append({
+                            'type': 'removed',
+                            'content': item['content']
+                        })
+                        j += 1
+                    else:
+                        j += 1
+
+            # 继续处理剩余项
+            else:
+                i += 1
+
+    # HTML转义函数
+    def html_escape(text):
+        if not text:
+            return ""
+        return (str(text)
+                .replace("&", "&amp;")
+                .replace("<", "&lt;")
+                .replace(">", "&gt;")
+                .replace('"', "&quot;")
+                .replace("'", "&#39;"))
+
     # 生成HTML
     html = f'''<!DOCTYPE html>
 <html lang="zh-CN">
@@ -323,6 +443,7 @@ def create_diff_html(title, en_diff, en_old_lines, en_new_lines, cn_content=None
             font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
             background-color: #f5f5f5;
             line-height: 1.6;
+            padding: 20px;
         }}
 
         .header {{
@@ -330,6 +451,7 @@ def create_diff_html(title, en_diff, en_old_lines, en_new_lines, cn_content=None
             padding: 20px;
             box-shadow: 0 2px 4px rgba(0,0,0,0.1);
             margin-bottom: 20px;
+            border-radius: 8px;
         }}
 
         .header h1 {{
@@ -343,165 +465,149 @@ def create_diff_html(title, en_diff, en_old_lines, en_new_lines, cn_content=None
             font-size: 14px;
         }}
 
-        .container {{
-            display: flex;
-            max-width: 100%;
+        .content-container {{
+            max-width: 1200px;
             margin: 0 auto;
             background-color: #fff;
-            min-height: calc(100vh - 100px);
-        }}
-
-        .column {{
-            flex: 1;
+            border-radius: 8px;
+            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
             overflow: hidden;
-            display: flex;
-            flex-direction: column;
         }}
 
-        .column-header {{
+        .content-header {{
             background-color: #e9ecef;
-            padding: 12px 20px;
+            padding: 15px 20px;
             font-weight: bold;
             color: #495057;
             border-bottom: 1px solid #dee2e6;
         }}
 
         .diff-content {{
-            flex: 1;
-            overflow-y: auto;
-            font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
-            font-size: 13px;
-            line-height: 1.4;
+            padding: 0;
         }}
 
-        .line {{
+        .line-wrapper {{
             display: flex;
-            min-height: 20px;
+            border-bottom: 1px solid #f0f0f0;
             position: relative;
         }}
 
+        .line-wrapper:hover {{
+            background-color: rgba(0, 123, 255, 0.02);
+        }}
+
+        .line-wrapper.has-changes {{
+            background-color: rgba(255, 193, 7, 0.05);
+        }}
+
+        .main-line {{
+            display: flex;
+            flex: 1;
+            min-height: 24px;
+            align-items: center;
+        }}
+
         .line-number {{
             width: 60px;
             text-align: right;
-            padding: 0 10px;
+            padding: 8px 12px;
             background-color: #f8f9fa;
             color: #6c757d;
-            border-right: 1px solid #dee2e6;
+            font-size: 12px;
             user-select: none;
             flex-shrink: 0;
-        }}
-
-        .line.highlight {{
-            background-color: rgba(255, 235, 59, 0.3) !important;
-            animation: highlight 2s ease-in-out;
-        }}
-
-        @keyframes highlight {{
-            0% {{ background-color: rgba(255, 235, 59, 0.8); }}
-            100% {{ background-color: rgba(255, 235, 59, 0.3); }}
+            border-right: 1px solid #e9ecef;
         }}
 
         .line-content {{
             flex: 1;
-            padding: 0 10px;
+            padding: 8px 12px;
+            font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
+            font-size: 13px;
+            line-height: 1.5;
             white-space: pre-wrap;
             word-break: break-word;
+            color: #333;
         }}
 
-        /* Diff specific styles */
-        .line.diff-added {{
+        /* 批注样式 */
+        .annotation {{
+            width: 400px;
+            background-color: #f8f9fa;
+            border-left: 1px solid #dee2e6;
+            padding: 8px 12px;
+            font-size: 12px;
+            display: none;
+        }}
+
+        .line-wrapper.has-changes .annotation {{
+            display: block;
+        }}
+
+        .annotation-item {{
+            margin-bottom: 6px;
+            padding: 6px 8px;
+            border-radius: 4px;
+            font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
+            font-size: 11px;
+            line-height: 1.4;
+        }}
+
+        .annotation-item:last-child {{
+            margin-bottom: 0;
+        }}
+
+        .annotation-item.added {{
             background-color: #e6ffec;
-        }}
-
-        .line.diff-added .line-content {{
-            background-color: #cdffd8;
             border-left: 3px solid #28a745;
+            color: #155724;
         }}
 
-        .line.diff-removed {{
+        .annotation-item.removed {{
             background-color: #ffeef0;
-        }}
-
-        .line.diff-removed .line-content {{
-            background-color: #fdb8c0;
             border-left: 3px solid #dc3545;
+            color: #721c24;
             text-decoration: line-through;
         }}
 
-        .line.diff-context {{
-            background-color: #ffffff;
+        .annotation-item.replaced {{
+            margin-bottom: 8px;
         }}
 
-        .line.diff-context .line-content {{
-            background-color: #ffffff;
+        .annotation-item.replaced .old-content {{
+            background-color: #ffeef0;
+            border-left: 3px solid #dc3545;
+            color: #721c24;
+            text-decoration: line-through;
+            padding: 4px 6px;
+            border-radius: 3px;
+            margin-bottom: 4px;
         }}
 
-        .line.diff-hunk {{
-            background-color: #f8f9fa;
+        .annotation-item.replaced .new-content {{
+            background-color: #e6ffec;
+            border-left: 3px solid #28a745;
+            color: #155724;
+            padding: 4px 6px;
+            border-radius: 3px;
+        }}
+
+        .annotation-header {{
+            font-size: 10px;
             color: #6c757d;
-            font-style: italic;
+            margin-bottom: 4px;
+            font-weight: bold;
+            text-transform: uppercase;
+            letter-spacing: 0.5px;
         }}
 
-        .line.diff-hunk .line-content {{
-            background-color: #f1f3f4;
-        }}
-
-        .line.diff-header {{
-            background-color: #e9ecef;
-            color: #495057;
-            font-style: italic;
-        }}
-
-        .line.diff-header .line-content {{
-            background-color: #e9ecef;
-        }}
-
-        /* Separator between columns */
-        .separator {{
-            width: 1px;
-            background-color: #dee2e6;
-            box-shadow: 0 0 5px rgba(0,0,0,0.1);
-            position: relative;
-            z-index: 10;
-        }}
-
-        /* Scrollbar styling */
-        .diff-content::-webkit-scrollbar {{
-            width: 8px;
-            height: 8px;
-        }}
-
-        .diff-content::-webkit-scrollbar-track {{
-            background: #f1f1f1;
-        }}
-
-        .diff-content::-webkit-scrollbar-thumb {{
-            background: #888;
-            border-radius: 4px;
-        }}
-
-        .diff-content::-webkit-scrollbar-thumb:hover {{
-            background: #555;
-        }}
-
-        /* Responsive design */
-        @media (max-width: 768px) {{
-            .container {{
-                flex-direction: column;
-            }}
-
-            .separator {{
-                width: 100%;
-                height: 1px;
-            }}
-        }}
-
-        /* Special styling for new page */
+        /* 新页面提示 */
         .new-page-notice {{
             background-color: #d4edda;
             color: #155724;
             padding: 15px 20px;
-            margin-bottom: 20px;
+            margin: 15px;
+            border-radius: 4px;
             border-left: 4px solid #28a745;
         }}
 
@@ -509,17 +615,126 @@ def create_diff_html(title, en_diff, en_old_lines, en_new_lines, cn_content=None
             background-color: #fff3cd;
             color: #856404;
             padding: 15px 20px;
-            margin-bottom: 20px;
+            margin: 15px;
+            border-radius: 4px;
             border-left: 4px solid #ffc107;
         }}
 
-        /* Line linking styles */
-        .line[data-cn-line] {{
-            cursor: pointer;
+        /* 响应式设计 */
+        @media (max-width: 1024px) {{
+            .annotation {{
+                width: 300px;
+            }}
         }}
 
-        .line:hover {{
-            background-color: rgba(0, 123, 255, 0.05);
+        @media (max-width: 768px) {{
+            body {{
+                padding: 10px;
+            }}
+
+            .annotation {{
+                width: 100%;
+                display: block !important;
+                border-left: none;
+                border-top: 1px solid #dee2e6;
+            }}
+
+            .line-wrapper {{
+                flex-direction: column;
+            }}
+
+            .main-line {{
+                border-bottom: none;
+            }}
+        }}
+
+        /* 高亮效果 */
+        .line-wrapper.highlight {{
+            background-color: rgba(255, 235, 59, 0.3) !important;
+            animation: highlight 2s ease-in-out;
+        }}
+
+        @keyframes highlight {{
+            0% {{ background-color: rgba(255, 235, 59, 0.6); }}
+            100% {{ background-color: rgba(255, 235, 59, 0.3); }}
+        }}
+
+        /* 空行样式 */
+        .line-wrapper.empty-line .line-content {{
+            min-height: 24px;
+            color: #999;
+            font-style: italic;
+        }}
+
+        /* 空白占位行样式 */
+        .line-wrapper.blank-placeholder {{
+            background-color: #fafafa;
+            border-bottom: 1px solid #e9ecef;
+            display: flex;
+        }}
+
+        .line-wrapper.blank-placeholder .main-line {{
+            min-height: 24px;
+            flex: 1;
+            display: flex;
+        }}
+
+        .line-wrapper.blank-placeholder .line-number {{
+            color: #dee2e6;
+        }}
+
+        .line-wrapper.blank-placeholder .line-content {{
+            color: #dee2e6;
+            font-style: italic;
+            min-height: 24px;
+            display: flex;
+            align-items: center;
+        }}
+
+        /* 空白占位行的批注样式 */
+        .line-wrapper.blank-placeholder .annotation {{
+            width: 400px;
+            background-color: #f8f9fa;
+            border-left: 1px solid #dee2e6;
+            padding: 8px 12px;
+            font-size: 12px;
+            display: block;
+        }}
+
+        .line-wrapper.blank-placeholder .annotation .annotation-item {{
+            margin-bottom: 6px;
+            padding: 6px 8px;
+            border-radius: 4px;
+            font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
+            font-size: 11px;
+            line-height: 1.4;
+        }}
+
+        .line-wrapper.blank-placeholder .annotation .annotation-item:last-child {{
+            margin-bottom: 0;
+        }}
+
+        .line-wrapper.blank-placeholder .annotation .annotation-item.added {{
+            background-color: #e6ffec;
+            border-left: 3px solid #28a745;
+            color: #155724;
+        }}
+
+        .line-wrapper.blank-placeholder .annotation .annotation-header {{
+            font-size: 10px;
+            color: #6c757d;
+            margin-bottom: 4px;
+            font-weight: bold;
+            text-transform: uppercase;
+            letter-spacing: 0.5px;
+        }}
+
+        .line-wrapper.blank-placeholder:hover {{
+            background-color: #f8f9fa;
+        }}
+
+        .line-wrapper.blank-placeholder:hover .main-line {{
+            background-color: rgba(0, 123, 255, 0.02);
         }}
     </style>
 </head>
@@ -532,139 +747,90 @@ def create_diff_html(title, en_diff, en_old_lines, en_new_lines, cn_content=None
         </div>
     </div>
 
-    <div class="container">
-        <div class="column">
-            <div class="column-header">English Diff</div>
-            <div class="diff-content" id="en-diff">
+    <div class="content-container">
+        <div class="content-header">中文翻译（含英文变更批注）</div>
+        <div class="diff-content">
 '''
 
-    # 生成英文diff内容
-    if parsed_diff:
-        for item in parsed_diff:
-            if item['type'] == 'hunk':
-                html += f'<div class="line diff-hunk"><span class="line-content">{item["content"]}</span></div>'
-            elif item['type'] == 'header':
-                html += f'<div class="line diff-header"><span class="line-content">{item["content"]}</span></div>'
-            elif item['type'] == 'added':
-                cn_line_attr = f'data-cn-line="{item["new_line"]}"' if item["new_line"] and cn_lines and item["new_line"] <= len(cn_lines) else ''
-                cn_title = f'中文第{item["new_line"]}行' if item["new_line"] and cn_lines and item["new_line"] <= len(cn_lines) else ''
-                html += f'<div class="line diff-added" {cn_line_attr} title="{cn_title}"><span class="line-number">{item["new_line"] or ""}</span><span class="line-content">{item["content"]}</span></div>'
-            elif item['type'] == 'removed':
-                html += f'<div class="line diff-removed" title="已删除"><span class="line-number">{item["old_line"] or ""}</span><span class="line-content">{item["content"]}</span></div>'
-            elif item['type'] == 'context':
-                cn_line_attr = f'data-cn-line="{item["new_line"]}"' if item["new_line"] and cn_lines and item["new_line"] <= len(cn_lines) else ''
-                cn_title = f'中文第{item["new_line"]}行' if item["new_line"] and cn_lines and item["new_line"] <= len(cn_lines) else ''
-                html += f'<div class="line diff-context" {cn_line_attr} title="{cn_title}"><span class="line-number">{item["new_line"]}</span><span class="line-content">{item["content"]}</span></div>'
-            else:
-                html += f'<div class="line"><span class="line-content">{item["content"]}</span></div>'
-    else:
-        # 新页面或无diff
-        if en_diff and en_diff.startswith("新创建页面"):
-            html += '<div class="new-page-notice">新创建页面</div>'
-
-        # 显示完整内容（新页面或无diff时）
-        for i, line in enumerate(en_new_lines or [], 1):
-            cn_line_attr = f'data-cn-line="{i}"' if cn_lines and i <= len(cn_lines) else ''
-            cn_title = f'中文第{i}行' if cn_lines and i <= len(cn_lines) else ''
-            html += f'<div class="line diff-context" {cn_line_attr} title="{cn_title}"><span class="line-number">{i}</span><span class="line-content">{line}</span></div>'
-
-    html += '''
-            </div>
-        </div>
-
-        <div class="separator"></div>
-
-        <div class="column">
-            <div class="column-header">中文翻译</div>
-            <div class="diff-content" id="cn-content">
-'''
-
-    # 添加中文内容
+    # 添加中文内容和英文变更批注
     if cn_content:
-        html += '<div id="cn-lines">'
         for i, line in enumerate(cn_lines, 1):
-            html += f'<div class="line diff-context" id="cn-line-{i}"><span class="line-number">{i}</span><span class="line-content">{line}</span></div>'
-        html += '</div>'
+            # 检查是否需要在此行之前插入空白行
+            if i in blank_lines_to_insert:
+                additions_list = blank_lines_to_insert[i]
+                for addition_content in additions_list:
+                    html += f'<div class="line-wrapper blank-placeholder">'
+                    html += '<div class="main-line">'
+                    html += '<span class="line-number">&nbsp;</span>'  # 不显示行号
+                    html += f'<span class="line-content">（新增英文内容占位）</span>'
+                    html += '</div>'
+
+                    # 为空白行添加对应的新增批注
+                    escaped_addition = html_escape(addition_content)
+                    html += '<div class="annotation">'
+                    html += f'<div class="annotation-item added">'
+                    html += f'<div class="annotation-header">新增</div>'
+                    html += f'<div>{escaped_addition}</div>'
+                    html += '</div>'
+                    html += '</div>'
+
+                    html += '</div>'
+
+            escaped_line = html_escape(line)
+            has_changes = i in en_changes_by_line
+            changes = en_changes_by_line.get(i, [])
+
+            # 判断是否为空行
+            is_empty = not line.strip()
+
+            html += f'<div class="line-wrapper {"has-changes" if has_changes else ""} {"empty-line" if is_empty else ""}">'
+            html += f'<div class="main-line">'
+            html += f'<span class="line-number">{i}</span>'
+            html += f'<span class="line-content">{escaped_line if not is_empty else "（空行）"}</span>'
+            html += '</div>'
+
+            # 添加英文变更批注（只显示替换和删除操作，新增操作已经在空白行中显示）
+            if has_changes:
+                html += '<div class="annotation">'
+                for change in changes:
+                    if change['type'] == 'added':
+                        # 新增内容已经在空白行中显示，这里跳过
+                        continue
+                    elif change['type'] == 'removed':
+                        escaped_change = html_escape(change['content'])
+                        html += f'<div class="annotation-item removed">'
+                        html += f'<div class="annotation-header">删除</div>'
+                        html += f'<div>{escaped_change}</div>'
+                        html += '</div>'
+                    elif change['type'] == 'replaced':
+                        escaped_old = html_escape(change['old_content'])
+                        escaped_new = html_escape(change['new_content'])
+                        html += f'<div class="annotation-item replaced">'
+                        html += f'<div class="annotation-header">替换</div>'
+                        html += f'<div class="old-content">{escaped_old}</div>'
+                        html += f'<div class="new-content">{escaped_new}</div>'
+                        html += '</div>'
+                html += '</div>'
+
+            html += '</div>'
     else:
         html += '<div class="no-translation">未找到对应的中文翻译页面</div>'
 
     html += '''
-            </div>
         </div>
     </div>
 
     <script>
-        // 同步滚动功能
-        const enDiff = document.querySelector('#en-diff');
-        const cnContent = document.querySelector('#cn-content');
-        const cnLines = {};
+        // 点击有变更的行时高亮
+        document.querySelectorAll('.line-wrapper.has-changes').forEach(lineWrapper => {{
+            lineWrapper.addEventListener('click', () => {{
+                // 移除所有高亮
+                document.querySelectorAll('.line-wrapper.highlight').forEach(line => {{
+                    line.classList.remove('highlight');
+                }});
 
-        // 构建中文行的位置映射
-        if (document.getElementById('cn-lines')) {{
-            document.querySelectorAll('#cn-lines .line').forEach(line => {{
-                const lineNum = line.querySelector('.line-number').textContent;
-                if (lineNum) {{
-                    cnLines[lineNum] = line.offsetTop;
-                }}
-            }});
-        }}
-
-        // 同步滚动
-        if (enDiff && cnContent) {{
-            enDiff.addEventListener('scroll', () => {{
-                cnContent.scrollTop = enDiff.scrollTop;
-            }});
-
-            cnContent.addEventListener('scroll', () => {{
-                enDiff.scrollTop = cnContent.scrollTop;
-            }});
-        }}
-
-        // 点击英文行时，高亮对应的中文行
-        document.querySelectorAll('[data-cn-line]').forEach(enLine => {{
-            enLine.addEventListener('click', () => {{
-                const cnLineNum = enLine.getAttribute('data-cn-line');
-                if (cnLineNum) {{
-                    const cnLine = document.getElementById(`cn-line-${cnLineNum}`);
-                    if (cnLine) {{
-                        // 移除所有高亮
-                        document.querySelectorAll('.line.highlight').forEach(line => {{
-                            line.classList.remove('highlight');
-                        }});
-
-                        // 高亮英文行和中文行
-                        enLine.classList.add('highlight');
-                        cnLine.classList.add('highlight');
-
-                        // 滚动到中文行的位置
-                        cnLine.scrollIntoView({{ behavior: 'smooth', block: 'center' }});
-                    }}
-                }}
-            }});
-
-            // 鼠标悬停时显示预览
-            enLine.addEventListener('mouseenter', () => {{
-                const cnLineNum = enLine.getAttribute('data-cn-line');
-                if (cnLineNum) {{
-                    const cnLine = document.getElementById(`cn-line-${cnLineNum}`);
-                    if (cnLine) {{
-                        enLine.style.backgroundColor = 'rgba(0, 123, 255, 0.1)';
-                        cnLine.style.backgroundColor = 'rgba(0, 123, 255, 0.1)';
-                    }}
-                }}
-            }});
-
-            enLine.addEventListener('mouseleave', () => {{
-                if (!enLine.classList.contains('highlight')) {{
-                    enLine.style.backgroundColor = '';
-                }}
-                const cnLineNum = enLine.getAttribute('data-cn-line');
-                if (cnLineNum) {{
-                    const cnLine = document.getElementById(`cn-line-${cnLineNum}`);
-                    if (cnLine && !cnLine.classList.contains('highlight')) {{
-                        cnLine.style.backgroundColor = '';
-                    }}
-                }}
+                // 高亮当前行
+                lineWrapper.classList.add('highlight');
             }});
         }});
     </script>