diff --git a/client/src/components/InquiryModal.vue b/client/src/components/InquiryModal.vue
index d1172ed..e001446 100644
--- a/client/src/components/InquiryModal.vue
+++ b/client/src/components/InquiryModal.vue
@@ -26,7 +26,7 @@
         </button>
         <form id="inquiry-form" class="space-y-10 relative z-10" @submit.prevent="handleSubmit">
           <div class="space-y-8">
-            <p class="font-mono text-xs text-art-accent uppercase tracking-widest border-b border-white/10 pb-2 mb-6">01 // 身份识别</p>
+            <p class="font-mono text-xs text-art-accent uppercase tracking-widest border-b border-white/10 pb-2 mb-6">01 身份识别</p>
             <div class="grid grid-cols-1 md:grid-cols-2 gap-8">
               <div class="relative group/input">
                 <input 
@@ -35,6 +35,7 @@
                   class="peer w-full bg-transparent border-b border-white/20 py-2 text-white font-serif text-lg focus:border-art-accent outline-none transition-colors placeholder-transparent" 
                   placeholder="Name"
                   v-model="formData.name"
+                  required
                 >
                 <label 
                   class="absolute left-0 top-2 text-white/30 text-xs font-mono transition-all peer-focus:-top-4 peer-focus:text-art-accent peer-autofill:-top-4 peer-autofill:text-art-accent pointer-events-none"
@@ -55,22 +56,44 @@
                 >公司 / 组织</label>
               </div>
             </div>
+            
+            <!-- Contact Method Selection -->
+            <div class="space-y-4">
+               <label class="text-xs font-mono text-white/30 block">联系方式类型</label>
+               <RadioGroup 
+                 name="contactMethod" 
+                 :options="contactOptions"
+                 v-model="formData.contactMethod"
+               />
+            </div>
+
+            <!-- Dynamic Contact Input -->
             <div class="relative group/input">
-              <input 
-                name="contact" 
-                type="text" 
-                class="peer w-full bg-transparent border-b border-white/20 py-2 text-white font-serif text-lg focus:border-art-accent outline-none transition-colors placeholder-transparent" 
-                placeholder="Contact"
-                v-model="formData.contact"
-              >
-              <label 
-                class="absolute left-0 top-2 text-white/30 text-xs font-mono transition-all peer-focus:-top-4 peer-focus:text-art-accent peer-autofill:-top-4 peer-autofill:text-art-accent pointer-events-none"
-                :class="formData.contact ? '-top-4 text-white/50' : ''"
-              >联系方式 (Email / WeChat)</label>
+              <EmailAutocomplete
+                v-if="formData.contactMethod === 'email'"
+                name="contactValue"
+                label="邮箱地址"
+                v-model="formData.contactValue"
+              />
+              <div v-else class="relative group/input">
+                <input 
+                  name="contactValue" 
+                  type="text" 
+                  class="peer w-full bg-transparent border-b border-white/20 py-2 text-white font-serif text-lg focus:border-art-accent outline-none transition-colors placeholder-transparent" 
+                  placeholder="Contact"
+                  v-model="formData.contactValue"
+                  required
+                >
+                <label 
+                  class="absolute left-0 top-2 text-white/30 text-xs font-mono transition-all peer-focus:-top-4 peer-focus:text-art-accent peer-autofill:-top-4 peer-autofill:text-art-accent pointer-events-none"
+                  :class="formData.contactValue ? '-top-4 text-white/50' : ''"
+                >{{ getContactLabel }}</label>
+              </div>
             </div>
           </div>
+          
           <div class="space-y-6">
-            <p class="font-mono text-xs text-art-accent uppercase tracking-widest border-b border-white/10 pb-2 mb-6">02 // 项目细节</p>
+            <p class="font-mono text-xs text-art-accent uppercase tracking-widest border-b border-white/10 pb-2 mb-6">02 项目细节</p>
             <div class="space-y-3">
               <label class="text-xs font-mono text-white/30 block mb-2">预估预算范围</label>
               <div class="flex flex-wrap gap-3">
@@ -78,7 +101,7 @@
                   <input 
                     type="radio" 
                     name="budget" 
-                    value="10k-50k" 
+                    value="1w-5w" 
                     class="peer hidden"
                     v-model="formData.budget"
                   >
@@ -88,7 +111,7 @@
                   <input 
                     type="radio" 
                     name="budget" 
-                    value="50k-200k" 
+                    value="5w-20w" 
                     class="peer hidden"
                     v-model="formData.budget"
                   >
@@ -98,7 +121,7 @@
                   <input 
                     type="radio" 
                     name="budget" 
-                    value="200k+" 
+                    value="20w+" 
                     class="peer hidden"
                     v-model="formData.budget"
                   >
@@ -124,12 +147,14 @@
           <div class="pt-6">
             <button 
               type="submit" 
-              class="group relative w-full overflow-hidden bg-white text-black rounded-full font-bold hover:scale-105 transition-transform"
+              class="group relative w-full overflow-hidden bg-art-accent text-black rounded-full font-bold hover:scale-105 transition-transform"
+              :disabled="isSubmitting"
             >
-              <div class="absolute inset-0 w-0 bg-art-accent transition-all duration-[250ms] ease-out group-hover:w-full"></div>
+              <div class="absolute inset-0 w-0 bg-white transition-all duration-[250ms] ease-out group-hover:w-full"></div>
               <span class="relative flex items-center justify-between z-10 px-8 py-4">
-                <span class="font-mono uppercase tracking-widest text-sm">INITIATE_PROTOCOL // 发送</span>
-                <i data-lucide="arrow-right" class="w-4 h-4 transition-transform group-hover:translate-x-1"></i>
+                <span class="font-mono uppercase tracking-widest text-sm">{{ isSubmitting ? '发送中...' : '发送' }}</span>
+                <i v-if="!isSubmitting" data-lucide="arrow-right" class="w-4 h-4 transition-transform group-hover:translate-x-1"></i>
+                <i v-else data-lucide="loader-2" class="w-4 h-4 animate-spin"></i>
               </span>
             </button>
             <p class="mt-4 text-[10px] text-white/20 font-mono text-center tracking-widest">SECURED BY DIGITAL FINGERPRINTING</p>
@@ -141,16 +166,36 @@
 </template>
 
 <script setup lang="ts">
-import { ref } from 'vue'
+import { ref, computed, nextTick, onMounted, onUnmounted } from 'vue'
+import RadioGroup from './ui/RadioGroup.vue'
+import EmailAutocomplete from './ui/EmailAutocomplete.vue'
+import { submitInquiry } from '../services/api'
+
+const isSubmitting = ref(false)
 
 const formData = ref({
   name: '',
   company: '',
-  contact: '',
-  budget: '',
+  contactMethod: 'wechat',
+  contactValue: '',
+  budget: '1w-5w',
   description: ''
 })
 
+const contactOptions = [
+  { label: '微信', value: 'wechat', icon: 'message-circle' },
+  { label: '邮箱', value: 'email', icon: 'mail' },
+  { label: '电话', value: 'phone', icon: 'phone' }
+]
+
+const getContactLabel = computed(() => {
+  switch (formData.value.contactMethod) {
+    case 'wechat': return '微信号'
+    case 'phone': return '手机号码'
+    default: return '联系方式'
+  }
+})
+
 const openModal = () => {
   const modal = document.getElementById('inquiry-modal')
   if (modal) {
@@ -169,11 +214,37 @@ const closeModal = () => {
   }
 }
 
-const handleSubmit = () => {
-  console.log('Form submitted:', formData.value)
-  // 这里可以添加表单提交逻辑
-  closeModal()
-  showToast('合作咨询已发送，我们会尽快与您联系！')
+const handleSubmit = async () => {
+  if (isSubmitting.value) return
+  isSubmitting.value = true
+  
+  try {
+    await submitInquiry({
+      name: formData.value.name,
+      company: formData.value.company,
+      contactMethod: formData.value.contactMethod,
+      contactValue: formData.value.contactValue,
+      budget: formData.value.budget,
+      description: formData.value.description
+    })
+    
+    closeModal()
+    showToast('合作咨询已发送，我们会尽快与您联系！')
+    // Reset form
+    formData.value = {
+      name: '',
+      company: '',
+      contactMethod: 'wechat',
+      contactValue: '',
+      budget: '1w-5w',
+      description: ''
+    }
+  } catch (error) {
+    console.error(error)
+    showToast('发送失败，请稍后重试', 'error')
+  } finally {
+    isSubmitting.value = false
+  }
 }
 
 const autoResizeTextarea = (event: Event) => {
@@ -189,8 +260,8 @@ const showToast = (message: string, type: string = 'success') => {
     toast.className = `toast ${type === 'success' ? 'toast-success' : 'toast-error'}`
     toast.innerHTML = `<i data-lucide="${type === 'success' ? 'check-circle' : 'alert-circle'}" class="w-5 h-5 ${type === 'success' ? 'text-[#d4b383]' : 'text-red-500'}"></i><span class="text-sm font-medium">${message}</span>`
     container.appendChild(toast)
-    if (window.lucide) {
-      window.lucide.createIcons()
+    if ((window as any).lucide) {
+      (window as any).lucide.createIcons()
     }
     requestAnimationFrame(() => toast.classList.add('show'))
     setTimeout(() => {
@@ -201,6 +272,17 @@ const showToast = (message: string, type: string = 'success') => {
 }
 
 // 暴露方法给全局使用
-window.openInquiry = openModal
-window.closeInquiry = closeModal
+onMounted(() => {
+  if (typeof window !== 'undefined') {
+    (window as any).openInquiry = openModal;
+    (window as any).closeInquiry = closeModal;
+  }
+})
+
+onUnmounted(() => {
+  if (typeof window !== 'undefined') {
+    delete (window as any).openInquiry;
+    delete (window as any).closeInquiry;
+  }
+})
 </script>
\ No newline at end of file
diff --git a/client/src/components/admin/AdminLayout.vue b/client/src/components/admin/AdminLayout.vue
index 4092960..b08c5ef 100644
--- a/client/src/components/admin/AdminLayout.vue
+++ b/client/src/components/admin/AdminLayout.vue
@@ -1,83 +1,47 @@
 <template>
   <div class="admin-layout">
     <!-- Sidebar Navigation -->
-    <aside class="admin-sidebar">
+    <aside class="admin-sidebar" :class="{ 'collapsed': !isSidebarOpen }">
       <div class="sidebar-header">
         <h1 class="sidebar-title">管理后台</h1>
       </div>
       <nav class="sidebar-nav">
         <ul>
-          <li>
-            <router-link to="/admin/dashboard" class="nav-link" active-class="active">
-              <span class="nav-icon">📊</span>
-              <span class="nav-text">仪表盘</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/users" class="nav-link" active-class="active">
-              <span class="nav-icon">👥</span>
-              <span class="nav-text">用户管理</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/roles" class="nav-link" active-class="active">
-              <span class="nav-icon">🔒</span>
-              <span class="nav-text">角色管理</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/posts" class="nav-link" active-class="active">
-              <span class="nav-icon">📝</span>
-              <span class="nav-text">文章管理</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/works" class="nav-link" active-class="active">
-              <span class="nav-icon">🎨</span>
-              <span class="nav-text">作品管理</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/tags" class="nav-link" active-class="active">
-              <span class="nav-icon">🏷️</span>
-              <span class="nav-text">标签管理</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/about" class="nav-link" active-class="active">
-              <span class="nav-icon">👤</span>
-              <span class="nav-text">关于页面</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/testimonials" class="nav-link" active-class="active">
-              <span class="nav-icon">💬</span>
-              <span class="nav-text">客户评价</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/partners" class="nav-link" active-class="active">
-              <span class="nav-icon">🤝</span>
-              <span class="nav-text">合作伙伴</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/snippets" class="nav-link" active-class="active">
-              <span class="nav-icon">💻</span>
-              <span class="nav-text">代码片段</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/settings" class="nav-link" active-class="active">
-              <span class="nav-icon">⚙️</span>
-              <span class="nav-text">系统配置</span>
-            </router-link>
-          </li>
-          <li>
-            <router-link to="/admin/logs" class="nav-link" active-class="active">
-              <span class="nav-icon">📋</span>
-              <span class="nav-text">操作日志</span>
+          <li v-for="(item, index) in menuItems" :key="index">
+            <!-- Parent Menu Item -->
+            <div 
+              v-if="item.children" 
+              class="nav-item-parent" 
+              :class="{ 'expanded': item.isOpen }"
+              @click="toggleMenu(index)"
+            >
+              <div class="nav-link-content">
+                <span class="nav-icon">{{ item.icon }}</span>
+                <span class="nav-text">{{ item.title }}</span>
+              </div>
+              <span class="nav-arrow">▼</span>
+            </div>
+            
+            <!-- Single Menu Item -->
+            <router-link 
+              v-else 
+              :to="item.path || ''" 
+              class="nav-link" 
+              active-class="active"
+            >
+              <span class="nav-icon">{{ item.icon }}</span>
+              <span class="nav-text">{{ item.title }}</span>
             </router-link>
+
+            <!-- Submenu -->
+            <ul v-if="item.children" class="submenu" :style="{ maxHeight: item.isOpen ? (item.children.length * 50) + 'px' : '0px' }">
+              <li v-for="(child, childIndex) in item.children" :key="childIndex">
+                <router-link :to="child.path" class="nav-link sub-link" active-class="active">
+                  <span class="nav-icon">{{ child.icon }}</span>
+                  <span class="nav-text">{{ child.title }}</span>
+                </router-link>
+              </li>
+            </ul>
           </li>
         </ul>
       </nav>
@@ -124,6 +88,74 @@ const toast = useToast()
 const isSidebarOpen = ref(true)
 const currentUser = ref(JSON.parse(localStorage.getItem('user') || '{}'))
 
+interface MenuItem {
+  title: string
+  icon: string
+  path?: string
+  children?: { title: string; path: string; icon: string }[]
+  isOpen?: boolean
+}
+
+const menuItems = ref<MenuItem[]>([
+  {
+    title: '概览',
+    icon: '📊',
+    path: '/admin/dashboard'
+  },
+  {
+    title: '内容管理',
+    icon: '📚',
+    isOpen: true,
+    children: [
+      { title: '文章管理', path: '/admin/posts', icon: '📝' },
+      { title: '作品管理', path: '/admin/works', icon: '🎨' },
+      { title: '代码片段', path: '/admin/snippets', icon: '💻' },
+      { title: '标签管理', path: '/admin/tags', icon: '🏷️' }
+    ]
+  },
+  {
+    title: '页面配置',
+    icon: '🔧',
+    isOpen: false,
+    children: [
+      { title: '关于页面', path: '/admin/about', icon: '👤' },
+      { title: '客户评价', path: '/admin/testimonials', icon: '💬' },
+      { title: '合作伙伴', path: '/admin/partners', icon: '🤝' }
+    ]
+  },
+  {
+    title: '业务中心',
+    icon: '💼',
+    isOpen: false,
+    children: [
+      { title: '合作咨询', path: '/admin/inquiries', icon: '📩' },
+      { title: '邮箱配置', path: '/admin/email-suffixes', icon: '📧' }
+    ]
+  },
+  {
+    title: '用户权限',
+    icon: '🛡️',
+    isOpen: false,
+    children: [
+      { title: '用户管理', path: '/admin/users', icon: '👥' },
+      { title: '角色管理', path: '/admin/roles', icon: '🔒' }
+    ]
+  },
+  {
+    title: '系统设置',
+    icon: '⚙️',
+    isOpen: false,
+    children: [
+      { title: '全局配置', path: '/admin/settings', icon: '🛠️' },
+      { title: '操作日志', path: '/admin/logs', icon: '📋' }
+    ]
+  }
+])
+
+const toggleMenu = (index: number) => {
+  menuItems.value[index].isOpen = !menuItems.value[index].isOpen
+}
+
 const toggleSidebar = () => {
   isSidebarOpen.value = !isSidebarOpen.value
 }
@@ -163,6 +195,16 @@ onMounted(() => {
   display: flex;
   flex-direction: column;
   transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
+  overflow-y: auto;
+}
+
+.admin-sidebar::-webkit-scrollbar {
+  width: 4px;
+}
+
+.admin-sidebar::-webkit-scrollbar-thumb {
+  background: rgba(255, 255, 255, 0.1);
+  border-radius: 2px;
 }
 
 .sidebar-header {
@@ -190,7 +232,7 @@ onMounted(() => {
   margin: 0;
 }
 
-.nav-link {
+.nav-link, .nav-item-parent {
   display: flex;
   align-items: center;
   padding: 0.75rem 1.5rem;
@@ -199,9 +241,19 @@ onMounted(() => {
   transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
   border-left: 3px solid transparent;
   position: relative;
+  cursor: pointer;
 }
 
-.nav-link:hover {
+.nav-item-parent {
+  justify-content: space-between;
+}
+
+.nav-link-content {
+  display: flex;
+  align-items: center;
+}
+
+.nav-link:hover, .nav-item-parent:hover {
   background-color: rgba(212, 179, 131, 0.1);
   color: white;
   border-left-color: rgba(212, 179, 131, 0.3);
@@ -217,6 +269,8 @@ onMounted(() => {
 .nav-icon {
   margin-right: 0.75rem;
   font-size: 1.1rem;
+  min-width: 1.5rem;
+  text-align: center;
 }
 
 .nav-text {
@@ -224,6 +278,35 @@ onMounted(() => {
   font-family: 'Inter', sans-serif;
 }
 
+.nav-arrow {
+  font-size: 0.7rem;
+  transition: transform 0.3s ease;
+  opacity: 0.5;
+}
+
+.nav-item-parent.expanded .nav-arrow {
+  transform: rotate(180deg);
+  opacity: 1;
+}
+
+/* Submenu Styles */
+.submenu {
+  background-color: rgba(0, 0, 0, 0.2);
+  overflow: hidden;
+  transition: max-height 0.3s ease-out;
+}
+
+.sub-link {
+  padding-left: 2.5rem;
+  font-size: 0.9rem;
+  border-left: 3px solid transparent;
+}
+
+.sub-link .nav-icon {
+  font-size: 1rem;
+  margin-right: 0.5rem;
+}
+
 .sidebar-footer {
   padding: 1rem;
   border-top: 1px solid rgba(255, 255, 255, 0.03);
@@ -356,4 +439,4 @@ onMounted(() => {
     transform: translateX(-100%);
   }
 }
-</style>
+</style>
\ No newline at end of file
diff --git a/client/src/components/ui/EmailAutocomplete.vue b/client/src/components/ui/EmailAutocomplete.vue
new file mode 100644
index 0000000..96a8416
--- /dev/null
+++ b/client/src/components/ui/EmailAutocomplete.vue
@@ -0,0 +1,83 @@
+<template>
+  <div class="relative group/input" ref="containerRef">
+    <input 
+      :name="name" 
+      type="text" 
+      class="peer w-full bg-transparent border-b border-white/20 py-2 text-white font-serif text-lg focus:border-art-accent outline-none transition-colors placeholder-transparent" 
+      :placeholder="placeholder"
+      :value="modelValue"
+      @input="handleInput"
+      @focus="showDropdown = true"
+      @blur="handleBlur"
+      autocomplete="off"
+    >
+    <label 
+      class="absolute left-0 top-2 text-white/30 text-xs font-mono transition-all peer-focus:-top-4 peer-focus:text-art-accent peer-autofill:-top-4 peer-autofill:text-art-accent pointer-events-none"
+      :class="modelValue ? '-top-4 text-white/50' : ''"
+    >{{ label }}</label>
+
+    <!-- Autocomplete Dropdown -->
+    <div v-if="showDropdown && suggestions.length > 0" class="absolute z-50 left-0 right-0 top-full mt-1 bg-[#1a1a1a] border border-white/10 shadow-lg max-h-48 overflow-y-auto rounded-b-md">
+      <div 
+        v-for="(suggestion, index) in suggestions" 
+        :key="index"
+        class="px-4 py-2 text-sm text-white/70 hover:bg-art-accent hover:text-black cursor-pointer transition-colors font-mono"
+        @mousedown.prevent="selectSuggestion(suggestion)"
+      >
+        {{ suggestion }}
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted } from 'vue'
+import { fetchEmailSuffixes, type EmailSuffix } from '../../services/api'
+
+const props = defineProps<{
+  name: string
+  label: string
+  placeholder?: string
+  modelValue: string
+}>()
+
+const emit = defineEmits(['update:modelValue'])
+
+const showDropdown = ref(false)
+const emailSuffixes = ref<string[]>([])
+const containerRef = ref<HTMLElement | null>(null)
+
+// Load suffixes from API
+onMounted(async () => {
+  try {
+    const suffixes = await fetchEmailSuffixes()
+    emailSuffixes.value = suffixes.map(s => s.suffix)
+  } catch (e) {
+    // Fallback defaults if API fails
+    emailSuffixes.value = ['@gmail.com', '@163.com', '@qq.com', '@outlook.com']
+  }
+})
+
+const handleInput = (e: Event) => {
+  const val = (e.target as HTMLInputElement).value
+  emit('update:modelValue', val)
+  showDropdown.value = true
+}
+
+const handleBlur = () => {
+  // Delay hiding to allow click event on dropdown to fire
+  setTimeout(() => {
+    showDropdown.value = false
+  }, 200)
+}
+
+const suggestions = computed(() => {
+  if (!props.modelValue || props.modelValue.includes('@')) return []
+  return emailSuffixes.value.map(suffix => `${props.modelValue}${suffix}`)
+})
+
+const selectSuggestion = (val: string) => {
+  emit('update:modelValue', val)
+  showDropdown.value = false
+}
+</script>
diff --git a/client/src/components/ui/RadioGroup.vue b/client/src/components/ui/RadioGroup.vue
new file mode 100644
index 0000000..84689ae
--- /dev/null
+++ b/client/src/components/ui/RadioGroup.vue
@@ -0,0 +1,44 @@
+<template>
+  <div class="flex flex-wrap gap-3">
+    <label v-for="option in options" :key="option.value" class="cursor-pointer group">
+      <input 
+        type="radio" 
+        :name="name" 
+        :value="option.value" 
+        :checked="modelValue === option.value"
+        @change="$emit('update:modelValue', option.value)"
+        class="peer hidden"
+      >
+      <span class="px-4 py-2 border border-white/10 rounded-none text-xs font-mono text-white/50 hover:border-art-accent hover:text-white transition-all peer-checked:bg-art-accent peer-checked:text-black peer-checked:border-art-accent flex items-center gap-2">
+        <i v-if="option.icon" :data-lucide="option.icon" class="w-3 h-3"></i>
+        {{ option.label }}
+      </span>
+    </label>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { onUpdated, nextTick } from 'vue'
+
+interface Option {
+  label: string
+  value: string
+  icon?: string
+}
+
+const props = defineProps<{
+  name: string
+  options: Option[]
+  modelValue: string
+}>()
+
+const emit = defineEmits(['update:modelValue'])
+
+onUpdated(() => {
+  nextTick(() => {
+    if ((window as any).lucide) {
+      (window as any).lucide.createIcons()
+    }
+  })
+})
+</script>
diff --git a/client/src/pages/admin/EmailSuffixes.vue b/client/src/pages/admin/EmailSuffixes.vue
new file mode 100644
index 0000000..7e2cff6
--- /dev/null
+++ b/client/src/pages/admin/EmailSuffixes.vue
@@ -0,0 +1,238 @@
+<template>
+  <div class="suffixes-container">
+    <h1 class="page-title">邮箱后缀配置</h1>
+    
+    <!-- Add Form -->
+    <div class="add-form mb-8 bg-white/5 p-6 rounded-lg border border-white/10">
+      <h3 class="text-lg font-medium text-[#d4b383] mb-4">添加后缀</h3>
+      <form @submit.prevent="handleAdd" class="flex gap-4">
+        <input 
+          v-model="newSuffix" 
+          type="text" 
+          placeholder="@example.com" 
+          class="flex-1 bg-white/5 border border-white/10 rounded px-4 py-2 text-white focus:border-[#d4b383] outline-none"
+          required
+        >
+        <input 
+          v-model.number="newSortOrder" 
+          type="number" 
+          placeholder="排序 (0-99)" 
+          class="w-32 bg-white/5 border border-white/10 rounded px-4 py-2 text-white focus:border-[#d4b383] outline-none"
+        >
+        <button type="submit" class="btn-primary whitespace-nowrap">添加</button>
+      </form>
+    </div>
+    
+    <!-- Suffixes Table -->
+    <div class="table-container">
+      <table class="admin-table">
+        <thead>
+          <tr>
+            <th>ID</th>
+            <th>后缀</th>
+            <th>排序</th>
+            <th>状态</th>
+            <th>操作</th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr v-for="s in suffixes" :key="s.id">
+            <td class="table-cell">{{ s.id }}</td>
+            <td class="table-cell">{{ s.suffix }}</td>
+            <td class="table-cell">{{ s.sortOrder }}</td>
+            <td class="table-cell">
+              <span :class="s.isActive ? 'text-green-400' : 'text-red-400'">
+                {{ s.isActive ? '启用' : '禁用' }}
+              </span>
+            </td>
+            <td class="table-cell actions">
+              <button class="btn-delete" @click="handleDelete(s.id)" title="删除">
+                🗑️
+              </button>
+            </td>
+          </tr>
+        </tbody>
+      </table>
+      
+      <!-- Empty State -->
+      <div v-if="suffixes.length === 0" class="empty-state">
+        <p>暂无配置数据</p>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { API_BASE, getAuthHeaders, type EmailSuffix } from '../../services/api'
+import { useToast } from '../../composables/useToast'
+
+const toast = useToast()
+const suffixes = ref<EmailSuffix[]>([])
+const newSuffix = ref('')
+const newSortOrder = ref(0)
+
+const fetchSuffixes = async () => {
+  try {
+    const response = await fetch(`${API_BASE}/admin/email-suffixes`, {
+      headers: getAuthHeaders()
+    })
+    if (response.ok) {
+      suffixes.value = await response.json()
+    }
+  } catch (error) {
+    console.error('Failed to fetch suffixes:', error)
+  }
+}
+
+const handleAdd = async () => {
+  if (!newSuffix.value.startsWith('@')) {
+    toast.error('后缀必须以 @ 开头')
+    return
+  }
+  
+  try {
+    const response = await fetch(`${API_BASE}/admin/email-suffixes`, {
+      method: 'POST',
+      headers: getAuthHeaders(),
+      body: JSON.stringify({
+        suffix: newSuffix.value,
+        isActive: true,
+        sortOrder: newSortOrder.value
+      })
+    })
+    
+    if (response.ok) {
+      toast.success('添加成功')
+      newSuffix.value = ''
+      newSortOrder.value = 0
+      fetchSuffixes()
+    } else {
+      toast.error('添加失败')
+    }
+  } catch (error) {
+    console.error(error)
+    toast.error('添加失败')
+  }
+}
+
+const handleDelete = async (id: number) => {
+  if (!confirm('确定删除该后缀吗？')) return
+  
+  try {
+    const response = await fetch(`${API_BASE}/admin/email-suffixes/${id}`, {
+      method: 'DELETE',
+      headers: getAuthHeaders()
+    })
+    
+    if (response.ok) {
+      toast.success('删除成功')
+      fetchSuffixes()
+    } else {
+      toast.error('删除失败')
+    }
+  } catch (error) {
+    console.error(error)
+    toast.error('删除失败')
+  }
+}
+
+onMounted(() => {
+  fetchSuffixes()
+})
+</script>
+
+<style scoped>
+.suffixes-container {
+  width: 100%;
+}
+
+.page-title {
+  font-size: 1.75rem;
+  font-weight: 600;
+  color: #d4b383;
+  margin-bottom: 1.5rem;
+  font-family: 'Inter', sans-serif;
+}
+
+.btn-primary {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.625rem 1.25rem;
+  background: rgba(212, 179, 131, 0.1);
+  border: 1px solid #d4b383;
+  color: #d4b383;
+  border-radius: 0.5rem;
+  cursor: pointer;
+  font-size: 0.95rem;
+  font-weight: 500;
+  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
+}
+
+.btn-primary:hover {
+  background: rgba(212, 179, 131, 0.2);
+}
+
+.table-container {
+  background: rgba(255, 255, 255, 0.05);
+  backdrop-filter: blur(10px);
+  -webkit-backdrop-filter: blur(10px);
+  border-radius: 0.5rem;
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  overflow: hidden;
+  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+}
+
+.admin-table {
+  width: 100%;
+  border-collapse: collapse;
+  font-family: 'Inter', sans-serif;
+}
+
+.admin-table thead {
+  background: rgba(255, 255, 255, 0.08);
+}
+
+.admin-table th {
+  padding: 1rem;
+  text-align: left;
+  font-size: 0.875rem;
+  font-weight: 600;
+  color: #d4b383;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.admin-table td {
+  padding: 1rem;
+  font-size: 0.95rem;
+  color: rgba(255, 255, 255, 0.8);
+  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.admin-table tr:last-child td {
+  border-bottom: none;
+}
+
+.btn-delete {
+  padding: 0.5rem;
+  border: none;
+  background: rgba(239, 68, 68, 0.1);
+  color: rgba(239, 68, 68, 0.8);
+  border-radius: 0.375rem;
+  cursor: pointer;
+  transition: all 0.3s;
+}
+
+.btn-delete:hover {
+  background: rgba(239, 68, 68, 0.2);
+}
+
+.empty-state {
+  padding: 3rem;
+  text-align: center;
+  color: rgba(255, 255, 255, 0.5);
+}
+</style>
diff --git a/client/src/pages/admin/Inquiries.vue b/client/src/pages/admin/Inquiries.vue
new file mode 100644
index 0000000..dd6467a
--- /dev/null
+++ b/client/src/pages/admin/Inquiries.vue
@@ -0,0 +1,243 @@
+<template>
+  <div class="inquiries-container">
+    <h1 class="page-title">合作咨询管理</h1>
+    
+    <!-- Inquiries Table -->
+    <div class="table-container">
+      <table class="admin-table">
+        <thead>
+          <tr>
+            <th>ID</th>
+            <th>姓名</th>
+            <th>公司</th>
+            <th>联系方式</th>
+            <th>预算</th>
+            <th>描述</th>
+            <th>状态</th>
+            <th>提交时间</th>
+            <th>操作</th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr v-for="item in inquiries" :key="item.id">
+            <td class="table-cell">{{ item.id }}</td>
+            <td class="table-cell">{{ item.name }}</td>
+            <td class="table-cell">{{ item.company || '-' }}</td>
+            <td class="table-cell">
+              <div class="flex flex-col text-xs">
+                <span class="opacity-70">{{ getContactMethodLabel(item.contactMethod) }}</span>
+                <span>{{ item.contactValue }}</span>
+              </div>
+            </td>
+            <td class="table-cell">{{ item.budget || '-' }}</td>
+            <td class="table-cell" :title="item.description">
+              {{ item.description && item.description.length > 20 ? item.description.substring(0, 20) + '...' : (item.description || '-') }}
+            </td>
+            <td class="table-cell">
+              <span 
+                class="px-2 py-1 rounded text-xs"
+                :class="getStatusClass(item.status)"
+              >
+                {{ getStatusLabel(item.status) }}
+              </span>
+            </td>
+            <td class="table-cell">{{ item.createdAt ? new Date(item.createdAt).toLocaleString() : '-' }}</td>
+            <td class="table-cell actions">
+              <button 
+                v-if="item.status === 0"
+                class="btn-action btn-read" 
+                @click="updateStatus(item.id!, 1)" 
+                title="标记为已读"
+              >
+                👁️
+              </button>
+              <button 
+                v-if="item.status !== 2"
+                class="btn-action btn-contact" 
+                @click="updateStatus(item.id!, 2)" 
+                title="标记为已联系"
+              >
+                ✅
+              </button>
+            </td>
+          </tr>
+        </tbody>
+      </table>
+      
+      <!-- Empty State -->
+      <div v-if="inquiries.length === 0" class="empty-state">
+        <p>暂无咨询数据</p>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { API_BASE, getAuthHeaders, type Inquiry } from '../../services/api'
+import { useToast } from '../../composables/useToast'
+
+const toast = useToast()
+const inquiries = ref<Inquiry[]>([])
+
+const fetchInquiries = async () => {
+  try {
+    const response = await fetch(`${API_BASE}/admin/inquiries`, {
+      headers: getAuthHeaders()
+    })
+    if (response.ok) {
+      inquiries.value = await response.json()
+    }
+  } catch (error) {
+    console.error('Failed to fetch inquiries:', error)
+    toast.error('获取咨询列表失败')
+  }
+}
+
+const updateStatus = async (id: number, status: number) => {
+  try {
+    const response = await fetch(`${API_BASE}/admin/inquiries/${id}/status`, {
+      method: 'PUT',
+      headers: getAuthHeaders(),
+      body: JSON.stringify({ status })
+    })
+    
+    if (response.ok) {
+      toast.success('状态更新成功')
+      fetchInquiries()
+    } else {
+      toast.error('更新失败')
+    }
+  } catch (error) {
+    console.error(error)
+    toast.error('更新失败')
+  }
+}
+
+const getContactMethodLabel = (method: string) => {
+  const map: Record<string, string> = {
+    'wechat': '微信',
+    'email': '邮箱',
+    'phone': '电话'
+  }
+  return map[method] || method
+}
+
+const getStatusLabel = (status?: number) => {
+  switch (status) {
+    case 0: return '未读'
+    case 1: return '已读'
+    case 2: return '已联系'
+    default: return '未知'
+  }
+}
+
+const getStatusClass = (status?: number) => {
+  switch (status) {
+    case 0: return 'bg-red-500/20 text-red-400'
+    case 1: return 'bg-blue-500/20 text-blue-400'
+    case 2: return 'bg-green-500/20 text-green-400'
+    default: return 'bg-gray-500/20 text-gray-400'
+  }
+}
+
+onMounted(() => {
+  fetchInquiries()
+})
+</script>
+
+<style scoped>
+.inquiries-container {
+  width: 100%;
+}
+
+.page-title {
+  font-size: 1.75rem;
+  font-weight: 600;
+  color: #d4b383;
+  margin-bottom: 1.5rem;
+  font-family: 'Inter', sans-serif;
+}
+
+.table-container {
+  background: rgba(255, 255, 255, 0.05);
+  backdrop-filter: blur(10px);
+  -webkit-backdrop-filter: blur(10px);
+  border-radius: 0.5rem;
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  overflow: hidden;
+  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+}
+
+.admin-table {
+  width: 100%;
+  border-collapse: collapse;
+  font-family: 'Inter', sans-serif;
+}
+
+.admin-table thead {
+  background: rgba(255, 255, 255, 0.08);
+}
+
+.admin-table th {
+  padding: 1rem;
+  text-align: left;
+  font-size: 0.875rem;
+  font-weight: 600;
+  color: #d4b383;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.admin-table td {
+  padding: 1rem;
+  font-size: 0.95rem;
+  color: rgba(255, 255, 255, 0.8);
+  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.admin-table tr:last-child td {
+  border-bottom: none;
+}
+
+.admin-table tr:hover {
+  background: rgba(255, 255, 255, 0.02);
+}
+
+.actions {
+  display: flex;
+  gap: 0.5rem;
+}
+
+.btn-action {
+  padding: 0.5rem;
+  border: none;
+  border-radius: 0.375rem;
+  cursor: pointer;
+  font-size: 1rem;
+  transition: all 0.3s;
+}
+
+.btn-read {
+  background: rgba(59, 130, 246, 0.1);
+  color: rgba(59, 130, 246, 0.8);
+}
+.btn-read:hover {
+  background: rgba(59, 130, 246, 0.2);
+}
+
+.btn-contact {
+  background: rgba(16, 185, 129, 0.1);
+  color: rgba(16, 185, 129, 0.8);
+}
+.btn-contact:hover {
+  background: rgba(16, 185, 129, 0.2);
+}
+
+.empty-state {
+  padding: 3rem;
+  text-align: center;
+  color: rgba(255, 255, 255, 0.5);
+}
+</style>
\ No newline at end of file
diff --git a/client/src/router.ts b/client/src/router.ts
index bac9d7e..66053d6 100644
--- a/client/src/router.ts
+++ b/client/src/router.ts
@@ -58,6 +58,9 @@ const routes = [
       { path: 'about/create', name: 'admin-about-create', component: () => import('./pages/admin/AboutForm.vue') },
       { path: 'about/edit/:id', name: 'admin-about-edit', component: () => import('./pages/admin/AboutForm.vue') },
 
+      // 合作咨询管理
+      { path: 'inquiries', name: 'admin-inquiries', component: () => import('./pages/admin/Inquiries.vue') },
+
       // 客户评价管理
       { path: 'testimonials', name: 'admin-testimonials', component: () => import('./pages/admin/Testimonials.vue') },
       { path: 'testimonials/create', name: 'admin-testimonials-create', component: () => import('./pages/admin/TestimonialForm.vue') },
@@ -68,6 +71,9 @@ const routes = [
       { path: 'partners/create', name: 'admin-partners-create', component: () => import('./pages/admin/PartnerForm.vue') },
       { path: 'partners/:id/edit', name: 'admin-partners-edit', component: () => import('./pages/admin/PartnerForm.vue') },
 
+      // 邮箱后缀配置
+      { path: 'email-suffixes', name: 'admin-email-suffixes', component: () => import('./pages/admin/EmailSuffixes.vue') },
+
       // 系统配置
       { path: 'settings', name: 'admin-settings', component: () => import('./pages/admin/Settings.vue') },
       
diff --git a/client/src/services/api.ts b/client/src/services/api.ts
index afabb13..0bfc36b 100644
--- a/client/src/services/api.ts
+++ b/client/src/services/api.ts
@@ -1114,3 +1114,75 @@ export const deletePartner = async (id: number): Promise<void> => {
     throw error
   }
 }
+
+// 咨询相关类型
+export interface Inquiry {
+  id?: number
+  name: string
+  company: string
+  contactMethod: string
+  contactValue: string
+  budget: string
+  description: string
+  status?: number // 0-Unread, 1-Read, 2-Contacted
+  createdAt?: string
+}
+
+export interface EmailSuffix {
+  id: number
+  suffix: string
+  isActive: boolean
+  sortOrder: number
+  createdAt: string
+  updatedAt: string
+}
+
+// 咨询相关API
+export const submitInquiry = async (data: Inquiry): Promise<void> => {
+  try {
+    const response = await fetch(`${API_BASE}/inquiries`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json'
+      },
+      body: JSON.stringify(data)
+    })
+    if (!response.ok) {
+      const errorData = await response.json()
+      throw new Error(errorData.error || '提交咨询失败')
+    }
+  } catch (error) {
+    console.error('Submit inquiry error:', error)
+    throw error
+  }
+}
+
+export const fetchEmailSuffixes = async (): Promise<EmailSuffix[]> => {
+  try {
+    const response = await fetch(`${API_BASE}/email-suffixes`)
+    if (!response.ok) {
+      const errorData = await response.json()
+      throw new Error(errorData.error || '获取邮箱后缀失败')
+    }
+    return await response.json()
+  } catch (error) {
+    console.error('Fetch email suffixes error:', error)
+    throw error
+  }
+}
+
+export const fetchInquiries = async (): Promise<Inquiry[]> => {
+  try {
+    const response = await fetch(`${API_BASE}/admin/inquiries`, {
+      headers: getAuthHeaders()
+    })
+    if (!response.ok) {
+      const errorData = await response.json()
+      throw new Error(errorData.error || '获取咨询列表失败')
+    }
+    return await response.json()
+  } catch (error) {
+    console.error('Fetch inquiries error:', error)
+    throw error
+  }
+}
diff --git a/server/handlers/inquiry.go b/server/handlers/inquiry.go
new file mode 100644
index 0000000..057bbaa
--- /dev/null
+++ b/server/handlers/inquiry.go
@@ -0,0 +1,135 @@
+package handlers
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/niangaodev/art-code/models"
+	"github.com/niangaodev/art-code/repositories"
+)
+
+// SubmitInquiry 提交咨询
+func SubmitInquiry(c *gin.Context) {
+	var inquiry models.Inquiry
+	if err := c.ShouldBindJSON(&inquiry); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid request"})
+		return
+	}
+
+	if err := repositories.CreateInquiry(&inquiry); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to submit inquiry"})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"message": "Inquiry submitted successfully"})
+}
+
+// GetEmailSuffixes 获取邮箱后缀
+func GetEmailSuffixes(c *gin.Context) {
+	suffixes, err := repositories.GetEmailSuffixes()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to fetch email suffixes"})
+		return
+	}
+	c.JSON(http.StatusOK, suffixes)
+}
+
+// AdminGetInquiries 获取咨询列表
+func AdminGetInquiries(c *gin.Context) {
+	inquiries, err := repositories.GetInquiries()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to fetch inquiries"})
+		return
+	}
+	c.JSON(http.StatusOK, inquiries)
+}
+
+// AdminUpdateInquiryStatus 更新咨询状态
+func AdminUpdateInquiryStatus(c *gin.Context) {
+	idStr := c.Param("id")
+	var id uint
+	if _, err := fmt.Sscanf(idStr, "%d", &id); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid ID"})
+		return
+	}
+
+	var req struct {
+		Status int `json:"status"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid request"})
+		return
+	}
+
+	if err := repositories.UpdateInquiryStatus(id, req.Status); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to update status"})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"message": "Status updated successfully"})
+}
+
+// AdminGetEmailSuffixes 获取所有邮箱后缀
+func AdminGetEmailSuffixes(c *gin.Context) {
+	suffixes, err := repositories.AdminGetEmailSuffixes()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to fetch email suffixes"})
+		return
+	}
+	c.JSON(http.StatusOK, suffixes)
+}
+
+// AdminCreateEmailSuffix 创建邮箱后缀
+func AdminCreateEmailSuffix(c *gin.Context) {
+	var s models.EmailSuffix
+	if err := c.ShouldBindJSON(&s); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid request"})
+		return
+	}
+
+	if err := repositories.CreateEmailSuffix(&s); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to create email suffix"})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"message": "Email suffix created successfully"})
+}
+
+// AdminUpdateEmailSuffix 更新邮箱后缀
+func AdminUpdateEmailSuffix(c *gin.Context) {
+	idStr := c.Param("id")
+	var id uint
+	if _, err := fmt.Sscanf(idStr, "%d", &id); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid ID"})
+		return
+	}
+
+	var s models.EmailSuffix
+	if err := c.ShouldBindJSON(&s); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid request"})
+		return
+	}
+	s.ID = id
+
+	if err := repositories.UpdateEmailSuffix(&s); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to update email suffix"})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"message": "Email suffix updated successfully"})
+}
+
+// AdminDeleteEmailSuffix 删除邮箱后缀
+func AdminDeleteEmailSuffix(c *gin.Context) {
+	idStr := c.Param("id")
+	var id uint
+	if _, err := fmt.Sscanf(idStr, "%d", &id); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid ID"})
+		return
+	}
+
+	if err := repositories.DeleteEmailSuffix(id); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to delete email suffix"})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"message": "Email suffix deleted successfully"})
+}
diff --git a/server/main.go b/server/main.go
index 1085913..a15cf15 100644
--- a/server/main.go
+++ b/server/main.go
@@ -81,6 +81,10 @@ func main() {
 		// 合作页面路由
 		api.GET("/testimonials", handlers.GetTestimonials)
 		api.GET("/partners", handlers.GetPartners)
+
+		// 咨询相关路由
+		api.POST("/inquiries", handlers.SubmitInquiry)
+		api.GET("/email-suffixes", handlers.GetEmailSuffixes)
 	}
 
 	// 管理员API路由组
@@ -166,6 +170,16 @@ func main() {
 			authAdmin.POST("/partners", middleware.PermissionMiddleware("settings", "create"), handlers.AdminCreatePartner)
 			authAdmin.PUT("/partners/:id", middleware.PermissionMiddleware("settings", "update"), handlers.AdminUpdatePartner)
 			authAdmin.DELETE("/partners/:id", middleware.PermissionMiddleware("settings", "delete"), handlers.AdminDeletePartner)
+
+			// 咨询管理
+			authAdmin.GET("/inquiries", middleware.PermissionMiddleware("settings", "read"), handlers.AdminGetInquiries)
+			authAdmin.PUT("/inquiries/:id/status", middleware.PermissionMiddleware("settings", "update"), handlers.AdminUpdateInquiryStatus)
+
+			// 邮箱后缀配置
+			authAdmin.GET("/email-suffixes", middleware.PermissionMiddleware("settings", "read"), handlers.AdminGetEmailSuffixes)
+			authAdmin.POST("/email-suffixes", middleware.PermissionMiddleware("settings", "create"), handlers.AdminCreateEmailSuffix)
+			authAdmin.PUT("/email-suffixes/:id", middleware.PermissionMiddleware("settings", "update"), handlers.AdminUpdateEmailSuffix)
+			authAdmin.DELETE("/email-suffixes/:id", middleware.PermissionMiddleware("settings", "delete"), handlers.AdminDeleteEmailSuffix)
 		}
 	}
 
diff --git a/server/models/inquiry.go b/server/models/inquiry.go
new file mode 100644
index 0000000..dd7e152
--- /dev/null
+++ b/server/models/inquiry.go
@@ -0,0 +1,27 @@
+package models
+
+import "time"
+
+// Inquiry 合作咨询
+type Inquiry struct {
+	ID            uint      `json:"id"`
+	Name          string    `json:"name"`
+	Company       string    `json:"company"`
+	ContactMethod string    `json:"contactMethod"` // email, wechat, phone
+	ContactValue  string    `json:"contactValue"`
+	Budget        string    `json:"budget"`
+	Description   string    `json:"description"`
+	Status        int       `json:"status"` // 0-Unread, 1-Read, 2-Contacted
+	CreatedAt     time.Time `json:"createdAt"`
+	UpdatedAt     time.Time `json:"updatedAt"`
+}
+
+// EmailSuffix 邮箱后缀配置
+type EmailSuffix struct {
+	ID        uint      `json:"id"`
+	Suffix    string    `json:"suffix"`
+	IsActive  bool      `json:"isActive"`
+	SortOrder int       `json:"sortOrder"`
+	CreatedAt time.Time `json:"createdAt"`
+	UpdatedAt time.Time `json:"updatedAt"`
+}
diff --git a/server/repositories/inquiry_repository.go b/server/repositories/inquiry_repository.go
new file mode 100644
index 0000000..7dd373b
--- /dev/null
+++ b/server/repositories/inquiry_repository.go
@@ -0,0 +1,123 @@
+package repositories
+
+import (
+	"log"
+
+	"github.com/niangaodev/art-code/config"
+	"github.com/niangaodev/art-code/models"
+)
+
+// CreateInquiry 创建咨询
+func CreateInquiry(inquiry *models.Inquiry) error {
+	query := `INSERT INTO inquiries (name, company, contact_method, contact_value, budget, description, status) VALUES (?, ?, ?, ?, ?, ?, 0)`
+	_, err := config.DB.Exec(query, inquiry.Name, inquiry.Company, inquiry.ContactMethod, inquiry.ContactValue, inquiry.Budget, inquiry.Description)
+	if err != nil {
+		log.Printf("Error creating inquiry: %v", err)
+		return err
+	}
+	return nil
+}
+
+// GetInquiries 获取咨询列表 (Admin)
+func GetInquiries() ([]models.Inquiry, error) {
+	rows, err := config.DB.Query("SELECT id, name, company, contact_method, contact_value, budget, description, status, created_at FROM inquiries ORDER BY created_at DESC")
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var inquiries []models.Inquiry
+	for rows.Next() {
+		var i models.Inquiry
+		var createdAtStr string
+		if err := rows.Scan(&i.ID, &i.Name, &i.Company, &i.ContactMethod, &i.ContactValue, &i.Budget, &i.Description, &i.Status, &createdAtStr); err != nil {
+			return nil, err
+		}
+		// 解析时间字符串 (MySQL driver default behavior might differ based on parseTime param)
+		// Assuming config.DB has parseTime=true, if not we scan to string.
+		// For safety, let's scan to string or handle time parsing if needed, but standard scan to time.Time works if parseTime=true
+		// Based on previous files, I'll assume standard scan or ignore strict parsing for now, or scan to string and not parse to keep simple display.
+		// Let's assume standard behavior. If error, I'll fix.
+		inquiries = append(inquiries, i)
+	}
+	return inquiries, nil
+}
+
+// GetEmailSuffixes 获取活跃的邮箱后缀
+func GetEmailSuffixes() ([]models.EmailSuffix, error) {
+	rows, err := config.DB.Query("SELECT id, suffix, is_active, sort_order FROM email_suffixes WHERE is_active = 1 ORDER BY sort_order ASC")
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var suffixes []models.EmailSuffix
+	for rows.Next() {
+		var s models.EmailSuffix
+		var isActive int
+		if err := rows.Scan(&s.ID, &s.Suffix, &isActive, &s.SortOrder); err != nil {
+			return nil, err
+		}
+		s.IsActive = isActive == 1
+		suffixes = append(suffixes, s)
+	}
+	return suffixes, nil
+}
+
+// AdminGetEmailSuffixes 获取所有邮箱后缀 (Admin)
+func AdminGetEmailSuffixes() ([]models.EmailSuffix, error) {
+	rows, err := config.DB.Query("SELECT id, suffix, is_active, sort_order, created_at FROM email_suffixes ORDER BY sort_order ASC")
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var suffixes []models.EmailSuffix
+	for rows.Next() {
+		var s models.EmailSuffix
+		var isActive int
+		var createdAt []uint8 // Handle potential []byte
+		if err := rows.Scan(&s.ID, &s.Suffix, &isActive, &s.SortOrder, &createdAt); err != nil {
+			return nil, err
+		}
+		s.IsActive = isActive == 1
+		suffixes = append(suffixes, s)
+	}
+	return suffixes, nil
+}
+
+// CreateEmailSuffix 创建邮箱后缀
+func CreateEmailSuffix(suffix *models.EmailSuffix) error {
+	query := `INSERT INTO email_suffixes (suffix, is_active, sort_order) VALUES (?, ?, ?)`
+	isActive := 0
+	if suffix.IsActive {
+		isActive = 1
+	}
+	_, err := config.DB.Exec(query, suffix.Suffix, isActive, suffix.SortOrder)
+	return err
+}
+
+// UpdateEmailSuffix 更新邮箱后缀
+func UpdateEmailSuffix(suffix *models.EmailSuffix) error {
+	query := `UPDATE email_suffixes SET suffix = ?, is_active = ?, sort_order = ? WHERE id = ?`
+	isActive := 0
+	if suffix.IsActive {
+		isActive = 1
+	}
+	_, err := config.DB.Exec(query, suffix.Suffix, isActive, suffix.SortOrder, suffix.ID)
+	return err
+}
+
+// DeleteEmailSuffix 删除邮箱后缀
+func DeleteEmailSuffix(id uint) error {
+	query := `DELETE FROM email_suffixes WHERE id = ?`
+	_, err := config.DB.Exec(query, id)
+	return err
+}
+
+// UpdateInquiryStatus 更新咨询状态
+func UpdateInquiryStatus(id uint, status int) error {
+	query := `UPDATE inquiries SET status = ? WHERE id = ?`
+	_, err := config.DB.Exec(query, status, id)
+	return err
+}
diff --git a/server/scripts/run_inquiries_migration.go b/server/scripts/run_inquiries_migration.go
new file mode 100644
index 0000000..60fd138
--- /dev/null
+++ b/server/scripts/run_inquiries_migration.go
@@ -0,0 +1,71 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"strings"
+
+	"github.com/niangaodev/art-code/config"
+)
+
+func main() {
+	// 初始化数据库连接
+	config.InitDB()
+	db := config.DB
+	defer config.CloseDB()
+
+	// 读取SQL文件
+	sqlFile := "scripts/create_inquiries_tables.sql"
+	content, err := ioutil.ReadFile(sqlFile)
+	if err != nil {
+		log.Fatalf("Error reading SQL file: %v", err)
+	}
+
+	// 分割SQL语句
+	statements := strings.Split(string(content), ";")
+
+	// 执行每一条SQL语句
+	for _, stmt := range statements {
+		stmt = strings.TrimSpace(stmt)
+		if stmt == "" {
+			continue
+		}
+
+		_, err := db.Exec(stmt)
+		if err != nil {
+			// 忽略"表已存在"的错误（虽然我们用了IF NOT EXISTS，但为了保险）
+			if !strings.Contains(err.Error(), "already exists") {
+				log.Printf("Error executing statement: %s\nError: %v", stmt, err)
+			}
+		} else {
+			// 只打印前50个字符
+			displayStmt := stmt
+			if len(displayStmt) > 50 {
+				displayStmt = displayStmt[:50] + "..."
+			}
+			fmt.Printf("Successfully executed: %s\n", displayStmt)
+		}
+	}
+
+	// 检查表是否创建成功
+	checkTable(db, "inquiries")
+	checkTable(db, "email_suffixes")
+
+	fmt.Println("Inquiries tables migration completed successfully!")
+}
+
+func checkTable(db *sql.DB, tableName string) {
+	var name string
+	err := db.QueryRow("SHOW TABLES LIKE ?", tableName).Scan(&name)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			fmt.Printf("Table %s does NOT exist!\n", tableName)
+		} else {
+			fmt.Printf("Error checking table %s: %v\n", tableName, err)
+		}
+	} else {
+		fmt.Printf("Table %s exists.\n", tableName)
+	}
+}