diff --git a/web/pages/model-dimension-create.html b/web/pages/model-dimension-create.html
index 82a0da2..b8de1ae 100644
--- a/web/pages/model-dimension-create.html
+++ b/web/pages/model-dimension-create.html
@@ -133,7 +133,7 @@
         }
         .markdown-editor {
             width: 100%;
-            height: 250px;
+            height: 350px;
             font-family: 'Consolas', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
             font-size: 14px;
             line-height: 1.6;
@@ -462,8 +462,8 @@
                     // 更新默认 Prompt
                     const method = this.dataset.method;
                     const promptEditor = document.getElementById('evalPromptEditor');
-                    if (promptEditor && EVAL_METHOD_PROMPTS[method]) {
-                        promptEditor.innerText = EVAL_METHOD_PROMPTS[method] || '';
+                    if (promptEditor && EVAL_METHOD_PROMPTS.hasOwnProperty(method)) {
+                        promptEditor.innerText = EVAL_METHOD_PROMPTS[method];
                         updateMarkdownHighlight();
                         syncEditorContent();
                     }
@@ -472,8 +472,8 @@
 
             // 初始化默认 Prompt
             const promptEditor = document.getElementById('evalPromptEditor');
-            if (promptEditor && EVAL_METHOD_PROMPTS[firstMethod]) {
-                promptEditor.innerText = EVAL_METHOD_PROMPTS[firstMethod] || '';
+            if (promptEditor && EVAL_METHOD_PROMPTS.hasOwnProperty(firstMethod)) {
+                promptEditor.innerText = EVAL_METHOD_PROMPTS[firstMethod];
                 updateMarkdownHighlight();
                 syncEditorContent();
             }
@@ -509,7 +509,7 @@
             const promptEditor = document.getElementById('evalPromptEditor');
             const selectedMethod = document.querySelector('.radio-option.selected input[name="eval_method"]');
             const method = selectedMethod ? selectedMethod.value : 'standard';
-            if (promptEditor && EVAL_METHOD_PROMPTS[method]) {
+            if (promptEditor && EVAL_METHOD_PROMPTS.hasOwnProperty(method)) {
                 promptEditor.innerText = EVAL_METHOD_PROMPTS[method];
                 updateMarkdownHighlight();
                 syncEditorContent();