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diff --git a/app/templates/index.html b/app/templates/index.html
index 97d067c..ef8dd38 100644
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -1,150 +1,156 @@
 <!DOCTYPE html>
 <html lang="zh-CN">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>词性标注工具</title>
     <style>
-        /* 全局样式 */
-        body {
-            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans", Arial, sans-serif;
-            margin: 0;
-            padding: 0;
-            background-color: #f9f9f9;
-        }
+      /* 全局样式 */
+      body {
+        font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans", Arial,
+          sans-serif;
+        margin: 0;
+        padding: 0;
+        background-color: #f9f9f9;
+      }
 
-        /* 页面容器 */
-        .container {
-            max-width: 800px;
-            margin: 50px auto;
-            padding: 20px;
-            background-color: #fff;
-            border-radius: 10px;
-            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
-        }
+      /* 页面容器 */
+      .container {
+        max-width: 800px;
+        margin: 50px auto;
+        padding: 20px;
+        background-color: #fff;
+        border-radius: 10px;
+        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+      }
 
-        /* 标题样式 */
-        h1 {
-            text-align: center;
-            color: #333;
-            margin-bottom: 20px;
-        }
+      /* 标题样式 */
+      h1 {
+        text-align: center;
+        color: #333;
+        margin-bottom: 20px;
+      }
 
-        /* 切换按钮样式 */
-        .switch-buttons {
-            text-align: center;
-            margin-bottom: 20px;
-        }
+      /* 切换按钮样式 */
+      .switch-buttons {
+        text-align: center;
+        margin-bottom: 20px;
+      }
 
-        .switch-buttons button {
-            background-color: #007bff;
-            color: #fff;
-            border: none;
-            padding: 10px 20px;
-            font-size: 14px;
-            cursor: pointer;
-            margin: 0 10px;
-            border-radius: 5px;
-            transition: background-color 0.3s ease;
-        }
+      .switch-buttons button {
+        background-color: #007bff;
+        color: #fff;
+        border: none;
+        padding: 10px 20px;
+        font-size: 14px;
+        cursor: pointer;
+        margin: 0 10px;
+        border-radius: 5px;
+        transition: background-color 0.3s ease;
+      }
 
-        .switch-buttons button:hover {
-            background-color: #0056b3;
-        }
+      .switch-buttons button:hover {
+        background-color: #0056b3;
+      }
 
-        /* 输入框容器 */
-        .input-container {
-            display: none;
-        }
+      /* 输入框容器 */
+      .input-container {
+        display: none;
+      }
 
-        .input-container.active {
-            display: block !important;
-        }
+      .input-container.active {
+        display: block !important;
+      }
 
-        /* 表单元素 */
-        label {
-            font-size: 14px;
-            color: #555;
-            margin-bottom: 8px;
-            display: block;
-        }
+      /* 表单元素 */
+      label {
+        font-size: 14px;
+        color: #555;
+        margin-bottom: 8px;
+        display: block;
+      }
 
-        input[type="file"],
-        textarea {
-            width: 97%;
-            padding: 10px;
-            font-size: 14px;
-            border: 1px solid #ddd;
-            border-radius: 5px;
-            margin-bottom: 20px;
-        }
+      input[type="file"],
+      textarea {
+        width: 97%;
+        padding: 10px;
+        font-size: 14px;
+        border: 1px solid #ddd;
+        border-radius: 5px;
+        margin-bottom: 20px;
+      }
 
-        /* 提交按钮右对齐 */
-        .form-actions {
-            text-align: right;
-        }
+      /* 提交按钮右对齐 */
+      .form-actions {
+        text-align: right;
+      }
 
-        button[type="submit"] {
-            background-color: #28a745;
-            color: #fff;
-            border: none;
-            padding: 10px 20px;
-            font-size: 14px;
-            cursor: pointer;
-            border-radius: 5px;
-            transition: background-color 0.3s ease;
-        }
+      button[type="submit"] {
+        background-color: #28a745;
+        color: #fff;
+        border: none;
+        padding: 10px 20px;
+        font-size: 14px;
+        cursor: pointer;
+        border-radius: 5px;
+        transition: background-color 0.3s ease;
+      }
 
-        button[type="submit"]:hover {
-            background-color: #218838;
-        }
+      button[type="submit"]:hover {
+        background-color: #218838;
+      }
     </style>
-</head>
-<body>
+  </head>
+  <body>
     <div class="container">
-        <h1>词性标注工具</h1>
+      <h1>词性标注工具</h1>
 
-        <!-- 切换方式 -->
-        <div class="switch-buttons">
-            <button onclick="toggleInputMethod('file')">上传文件</button>
-            <button onclick="toggleInputMethod('text')">粘贴文本</button>
-        </div>
+      <!-- 切换方式 -->
+      <div class="switch-buttons">
+        <button onclick="toggleInputMethod('file')">上传文件</button>
+        <button onclick="toggleInputMethod('text')">粘贴文本</button>
+      </div>
 
-        <!-- 文件上传 -->
-        <div id="file-upload-container" class="input-container active">
-            <form action="/process" method="post" enctype="multipart/form-data">
-                <label for="file">选择文件：</label>
-                <input type="file" name="file" id="file">
-                <div class="form-actions">
-                    <button type="submit">提交文本</button>
-                </div>
-            </form>
-        </div>
+      <!-- 文件上传 -->
+      <div id="file-upload-container" class="input-container active">
+        <form action="/process" method="post" enctype="multipart/form-data">
+          <label for="file">选择文件：</label>
+          <input type="file" name="file" id="file" />
+          <div class="form-actions">
+            <button type="submit">提交文本</button>
+          </div>
+        </form>
+      </div>
 
-        <!-- 粘贴文本 -->
-        <div id="text-paste-container" class="input-container">
-            <form action="/process" method="post">
-                <label for="text">粘贴文本：</label>
-                <textarea name="text" id="text" rows="10" placeholder="在这里粘贴要处理的文本"></textarea>
-                <div class="form-actions">
-                    <button type="submit">提交文本</button>
-                </div>
-            </form>
-        </div>
+      <!-- 粘贴文本 -->
+      <div id="text-paste-container" class="input-container">
+        <form action="/process" method="post">
+          <label for="text">粘贴文本：</label>
+          <textarea
+            name="text"
+            id="text"
+            rows="10"
+            placeholder="在这里粘贴要处理的文本"
+          ></textarea>
+          <div class="form-actions">
+            <button type="submit">提交文本</button>
+          </div>
+        </form>
+      </div>
     </div>
 
     <script>
-        function toggleInputMethod(method) {
-            const fileContainer = document.getElementById("file-upload-container");
-            const textContainer = document.getElementById("text-paste-container");
-            if (method === "file") {
-                fileContainer.classList.add("active");
-                textContainer.classList.remove("active");
-            } else {
-                textContainer.classList.add("active");
-                fileContainer.classList.remove("active");
-            }
+      function toggleInputMethod(method) {
+        const fileContainer = document.getElementById("file-upload-container");
+        const textContainer = document.getElementById("text-paste-container");
+        if (method === "file") {
+          fileContainer.classList.add("active");
+          textContainer.classList.remove("active");
+        } else {
+          textContainer.classList.add("active");
+          fileContainer.classList.remove("active");
         }
+      }
     </script>
-</body>
+  </body>
 </html>
diff --git a/app/templates/result.html b/app/templates/result.html
index 15a5c1d..b67b313 100644
--- a/app/templates/result.html
+++ b/app/templates/result.html
@@ -1,107 +1,128 @@
 <!DOCTYPE html>
 <html lang="zh-CN">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>标注结果</title>
     <style>
-        body {
-            background-color: #fafafa;
-            margin: 0;
-            padding: 0;
-            display: flex;
-            flex-direction: column;
-            align-items: center;
-        }
+      body {
+        background-color: #fafafa;
+        margin: 0;
+        padding: 0;
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+      }
 
-        #result {
-            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans", "Noto Sans CJK SC", Arial, sans-serif;
-            font-size: 16px;
-            color: #333;
-            line-height: 1.8;
-            background-color: #f9f9f9;
-            border: 1px solid #ddd;
-            padding: 15px;
-            border-radius: 5px;
-            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
-            max-width: 800px;
-            width: 90%;
-            margin-top: 20px;
-        }
+      #result {
+        font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans",
+          "Noto Sans CJK SC", Arial, sans-serif;
+        font-size: 16px;
+        color: #333;
+        line-height: 1.8;
+        background-color: #f9f9f9;
+        border: 1px solid #ddd;
+        padding: 15px;
+        border-radius: 5px;
+        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+        max-width: 800px;
+        width: 90%;
+        margin-top: 20px;
+      }
 
-        #return {
-            position: absolute; /* 固定在页面的左上角 */
-            top: 10px;
-            left: 10px;
-            text-decoration: none;
-            font-size: 14px;
-            color: #007bff; /* 蓝色字体 */
-            background: #f1f1f1; /* 浅灰背景 */
-            padding: 8px 12px;
-            border-radius: 5px;
-            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
-        }
+      #return {
+        position: absolute; /* 固定在页面的左上角 */
+        top: 10px;
+        left: 10px;
+        text-decoration: none;
+        font-size: 14px;
+        color: #007bff; /* 蓝色字体 */
+        background: #f1f1f1; /* 浅灰背景 */
+        padding: 8px 12px;
+        border-radius: 5px;
+        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+      }
 
-        #return:hover {
-            background: #e2e6ea; /* 鼠标悬停时背景变化 */
-        }
+      #return:hover {
+        background: #e2e6ea; /* 鼠标悬停时背景变化 */
+      }
 
-        p {
-            margin: 10px 0;
-            text-align: justify;
-        }
+      p {
+        margin: 10px 0;
+        text-align: justify;
+      }
 
-        .word.n { color: red; }
-        .word.v { color: blue; }
-        .word.a { color: green; }
-        .word.d { color: orange; }
+      .word.n {
+        color: red;
+      }
+      .word.v {
+        color: blue;
+      }
+      .word.a {
+        color: green;
+      }
+      .word.d {
+        color: orange;
+      }
 
-        .word.hidden { color: inherit !important; }
+      .word.hidden {
+        color: inherit !important;
+      }
     </style>
-</head>
-<body>
+  </head>
+  <body>
     <h1>标注结果</h1>
 
     <!-- 返回按钮 -->
     <a href="/" id="return">返回</a>
 
     <!-- 词性说明与控制 -->
-    <div style="margin-bottom: 10px;">
-        <strong>词性显示控制：</strong>
-        <label><input type="checkbox" id="toggle-n" checked> <span style="color: red;">名词</span></label>
-        <label><input type="checkbox" id="toggle-a" checked> <span style="color: green;">形容词</span></label>
+    <div style="margin-bottom: 10px">
+      <strong>词性显示控制：</strong>
+      <label
+        ><input type="checkbox" id="toggle-n" checked />
+        <span style="color: red">名词</span></label
+      >
+      <label
+        ><input type="checkbox" id="toggle-a" checked />
+        <span style="color: green">形容词</span></label
+      >
 
-        <label><input type="checkbox" id="toggle-v"> <span style="color: blue;">动词</span></label>
-        <label><input type="checkbox" id="toggle-d"> <span style="color: orange;">副词</span></label>
+      <label
+        ><input type="checkbox" id="toggle-v" />
+        <span style="color: blue">动词</span></label
+      >
+      <label
+        ><input type="checkbox" id="toggle-d" />
+        <span style="color: orange">副词</span></label
+      >
     </div>
 
     <!-- 标注结果 -->
-    <div id="result">
-        {{ content | safe }}
-    </div>
+    <div id="result">{{ content | safe }}</div>
 
     <div>
-    <strong>导出结果：</strong>
-    <button onclick="exportFile('html')">导出为 HTML</button>
-    <button onclick="exportFile('pdf')">导出为 PDF</button>
-    <button onclick="exportFile('rtf')">导出为富文本（RTF）</button>
+      <strong>导出结果：</strong>
+      <button onclick="exportFile('html')">导出为 HTML</button>
+      <button onclick="exportFile('pdf')">导出为 PDF</button>
+      <button onclick="exportFile('rtf')">导出为富文本（RTF）</button>
     </div>
 
     <script>
-        function exportFile(format) {
-    const content = document.getElementById("result").innerHTML; // 获取结果内容
-    fetch("/export", {
-        method: "POST",
-        headers: {
-            "Content-Type": "application/json"
-        },
-        body: JSON.stringify({ format: format, content: content }) // 确保键名正确
-    })
-        .then(response => {
+      function exportFile(format) {
+        const content = document.getElementById("result").innerHTML; // 获取结果内容
+        fetch("/export", {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json",
+          },
+          body: JSON.stringify({ format: format, content: content }), // 确保键名正确
+        })
+          .then((response) => {
             if (response.ok) return response.blob();
             throw new Error("导出失败");
-        })
-        .then(blob => {
+          })
+          .then((blob) => {
             const url = window.URL.createObjectURL(blob);
             const a = document.createElement("a");
             a.style.display = "none";
@@ -110,34 +131,34 @@
             document.body.appendChild(a);
             a.click();
             window.URL.revokeObjectURL(url);
-        })
-        .catch(err => alert(err.message));
-}
+          })
+          .catch((err) => alert(err.message));
+      }
     </script>
 
     <script>
-        // 获取复选框和结果区域
-        const toggles = {
-            n: document.getElementById("toggle-n"),
-            v: document.getElementById("toggle-v"),
-            a: document.getElementById("toggle-a"),
-            d: document.getElementById("toggle-d"),
-        };
-        const resultDiv = document.getElementById("result");
+      // 获取复选框和结果区域
+      const toggles = {
+        n: document.getElementById("toggle-n"),
+        v: document.getElementById("toggle-v"),
+        a: document.getElementById("toggle-a"),
+        d: document.getElementById("toggle-d"),
+      };
+      const resultDiv = document.getElementById("result");
 
-        // 监听复选框的切换事件
-        Object.entries(toggles).forEach(([tag, checkbox]) => {
-            checkbox.addEventListener("change", () => {
-                const words = resultDiv.querySelectorAll(`.word.${tag}`);
-                words.forEach(word => {
-                    if (checkbox.checked) {
-                        word.classList.remove("hidden"); // 恢复颜色
-                    } else {
-                        word.classList.add("hidden"); // 移除颜色
-                    }
-                });
-            });
+      // 监听复选框的切换事件
+      Object.entries(toggles).forEach(([tag, checkbox]) => {
+        checkbox.addEventListener("change", () => {
+          const words = resultDiv.querySelectorAll(`.word.${tag}`);
+          words.forEach((word) => {
+            if (checkbox.checked) {
+              word.classList.remove("hidden"); // 恢复颜色
+            } else {
+              word.classList.add("hidden"); // 移除颜色
+            }
+          });
         });
+      });
     </script>
-</body>
+  </body>
 </html>
