diff --git a/src/App.vue b/src/App.vue
index d82e9cd..401e078 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -5,15 +5,13 @@ import { useProjects } from "./composables/useProjects"
 
 const { projects, fetchProjects } = useProjects()
 
-const getApiBase = () => {
+function getApiBase() {
   if (window.location.hostname !== "localhost") {
-    return "/api"
+    return `${window.location.protocol}//${window.location.host}/api`
   }
   return "http://localhost:3000/api"
 }
 
-const API_BASE = getApiBase()
-
 onMounted(() => {
   fetchProjects()
 })
@@ -23,7 +21,7 @@ onMounted(() => {
   <div class="app">
     <ProjectManager
       :projects="projects"
-      :api-base="API_BASE"
+      :api-base="getApiBase()"
       @project-uploaded="fetchProjects"
     />
   </div>
diff --git a/src/components/ProjectManager.vue b/src/components/ProjectManager.vue
index 45de134..f641c3b 100644
--- a/src/components/ProjectManager.vue
+++ b/src/components/ProjectManager.vue
@@ -24,11 +24,27 @@ const fileInput = ref<HTMLInputElement>()
 
 const handleFileSelect = () => {
   const file = fileInput.value?.files?.[0]
-  if (file && file.name.endsWith(".html")) {
-    uploadProject(file)
-  } else {
+  if (!file) return
+  
+  // 文件类型验证
+  if (!file.name.endsWith(".html")) {
     showMessage("请选择HTML文件", "error")
+    return
   }
+  
+  // 文件大小验证 (5MB)
+  const maxSize = 5 * 1024 * 1024
+  if (file.size > maxSize) {
+    showMessage("文件大小不能超过5MB", "error")
+    return
+  }
+  
+  if (file.size === 0) {
+    showMessage("文件不能为空", "error")
+    return
+  }
+  
+  uploadProject(file)
 }
 
 const uploadProject = async (file: File) => {
@@ -36,6 +52,11 @@ const uploadProject = async (file: File) => {
     showMessage("请输入项目名称", "error")
     return
   }
+  
+  if (projectName.value.length > 50) {
+    showMessage("项目名称不能超过50个字符", "error")
+    return
+  }
 
   isUploading.value = true
 
@@ -129,7 +150,10 @@ const deleteProject = async (projectSlug: string, projectName: string) => {
             id="projectName"
             placeholder="请输入项目名称"
             class="form-input"
+            maxlength="50"
+            :disabled="isUploading"
           />
+          <small class="input-hint">最多50个字符</small>
         </div>
 
         <div class="file-upload">
@@ -139,6 +163,7 @@ const deleteProject = async (projectSlug: string, projectName: string) => {
             accept=".html"
             @change="handleFileSelect"
             style="display: none"
+            :disabled="isUploading"
           />
           <button
             @click="fileInput?.click()"
@@ -294,13 +319,25 @@ const deleteProject = async (projectSlug: string, projectName: string) => {
   box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
 }
 
+.form-input:disabled {
+  background-color: #f5f5f5;
+  cursor: not-allowed;
+}
+
+.input-hint {
+  color: #666;
+  font-size: 12px;
+  margin-top: 4px;
+  display: block;
+}
+
 .upload-button {
   background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
   color: white;
   border: none;
-  padding: 15px 30px;
-  font-size: 16px;
-  border-radius: 25px;
+  padding: 10px 20px;
+  font-size: 14px;
+  border-radius: 20px;
   cursor: pointer;
   transition: all 0.3s ease;
   font-weight: 500;
@@ -468,11 +505,12 @@ const deleteProject = async (projectSlug: string, projectName: string) => {
   background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
   color: white;
   text-decoration: none;
-  padding: 10px 15px;
+  padding: 8px 12px;
   border-radius: 6px;
   text-align: center;
   font-weight: 500;
   transition: all 0.3s ease;
+  font-size: 13px;
 }
 
 .visit-button:hover {
@@ -484,11 +522,12 @@ const deleteProject = async (projectSlug: string, projectName: string) => {
 .delete-button {
   color: white;
   border: none;
-  padding: 10px 15px;
+  padding: 8px 12px;
   border-radius: 6px;
   cursor: pointer;
   font-weight: 500;
   transition: all 0.3s ease;
+  font-size: 13px;
 }
 
 .copy-button {
@@ -514,11 +553,12 @@ const deleteProject = async (projectSlug: string, projectName: string) => {
 .deactivate-button {
   color: white;
   border: none;
-  padding: 10px 15px;
+  padding: 8px 12px;
   border-radius: 6px;
   cursor: pointer;
   font-weight: 500;
   transition: all 0.3s ease;
+  font-size: 13px;
 }
 
 .activate-button {
diff --git a/src/services/api.ts b/src/services/api.ts
index d36608c..59a5009 100644
--- a/src/services/api.ts
+++ b/src/services/api.ts
@@ -1,10 +1,8 @@
-import type { Project, UploadResponse, ToggleResponse } from '../types'
+import type { Project, UploadResponse, ToggleResponse } from "../types"
 
-// 动态获取API基础URL
 const getApiBase = () => {
-  // 在Docker环境中，前端通过Caddy代理访问后端
   if (window.location.hostname !== 'localhost') {
-    return '/api'
+    return `${window.location.protocol}//${window.location.host}/api`
   }
   // 开发环境直接访问后端
   return 'http://localhost:3000/api'
@@ -15,7 +13,7 @@ async function request<T>(url: string, options: RequestInit = {}): Promise<T> {
   const API_BASE = getApiBase()
   const response = await fetch(`${API_BASE}${url}`, {
     headers: {
-      'Content-Type': 'application/json',
+      "Content-Type": "application/json",
       ...options.headers,
     },
     ...options,
@@ -24,7 +22,7 @@ async function request<T>(url: string, options: RequestInit = {}): Promise<T> {
   const data = await response.json()
 
   if (!response.ok) {
-    throw new Error(data.error || '请求失败')
+    throw new Error(data.error || "请求失败")
   }
 
   return data
@@ -33,25 +31,32 @@ async function request<T>(url: string, options: RequestInit = {}): Promise<T> {
 // API方法
 export const api = {
   // 获取项目列表
-  getProjects: (): Promise<Project[]> => request<Project[]>('/projects'),
+  getProjects: (): Promise<Project[]> => request<Project[]>("/projects"),
 
   // 上传项目
-  uploadProject: (formData: FormData): Promise<UploadResponse> => 
-    request<UploadResponse>('/upload', {
-      method: 'POST',
+  uploadProject: (formData: FormData): Promise<UploadResponse> => {
+    const API_BASE = getApiBase()
+    return fetch(`${API_BASE}/upload`, {
+      method: "POST",
       body: formData,
-      headers: {}, // 让浏览器自动设置Content-Type
-    }),
+    }).then(async (response) => {
+      const data = await response.json()
+      if (!response.ok) {
+        throw new Error(data.error || "请求失败")
+      }
+      return data
+    })
+  },
 
   // 切换项目状态
-  toggleProject: (slug: string): Promise<ToggleResponse> => 
+  toggleProject: (slug: string): Promise<ToggleResponse> =>
     request<ToggleResponse>(`/projects/${slug}/toggle`, {
-      method: 'PATCH',
+      method: "PATCH",
     }),
 
   // 删除项目
-  deleteProject: (slug: string): Promise<{ message: string }> => 
+  deleteProject: (slug: string): Promise<{ message: string }> =>
     request<{ message: string }>(`/projects/${slug}`, {
-      method: 'DELETE',
+      method: "DELETE",
     }),
 }