diff --git a/src/app/page.tsx b/src/app/page.tsx
index b0255bb..dd657e5 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -232,7 +232,7 @@ export default function Home() {
   // ++ 新增：处理确认按钮点击的函数 ++
   const handleConfirmGranularity = () => {
     const minGranularity = 10;
-    const maxGranularity = 100;
+    const maxGranularity = 300;
     let newGranularity = parseInt(granularityInput, 10);
 
     if (isNaN(newGranularity) || newGranularity < minGranularity) {
@@ -1129,7 +1129,7 @@ export default function Home() {
                 {/* Granularity Input */}
                 <div className="flex-1">
                   <label htmlFor="granularityInput" className="block text-xs sm:text-sm font-medium text-gray-700 mb-1 sm:mb-1.5">
-                    横轴格子 (10-1k):
+                    横轴格子 (10-300):
                   </label>
                   <div className="flex items-center gap-2">
                     <input
@@ -1139,7 +1139,7 @@ export default function Home() {
                       onChange={handleGranularityInputChange}
                       className="w-full p-1.5 border border-gray-300 rounded-md text-sm focus:ring-blue-500 focus:border-blue-500 h-9"
                       min="10"
-                      max="1000"
+                      max="300"
                     />
                     <button 
                       onClick={handleConfirmGranularity}