diff --git a/logs/app.log b/logs/app.log
index a1aad73..21fe9dd 100644
--- a/logs/app.log
+++ b/logs/app.log
@@ -13,4 +13,3 @@ WARNING: This is a development server. Do not use it in a production deployment.
  * Running on http://127.0.0.1:16041
  * Running on http://192.168.0.101:16041
 Press CTRL+C to quit
-127.0.0.1 - - [11/Jul/2026 00:34:38] "GET /api/models/export HTTP/1.1" 200 -
diff --git a/templates/compare.html b/templates/compare.html
index 0ea2067..b11fb16 100644
--- a/templates/compare.html
+++ b/templates/compare.html
@@ -6,7 +6,12 @@
     <title>ParamHub - 参数百科</title>
     <link rel="icon" type="image/svg+xml" href="/static/favicon.svg">
     <script src="https://cdn.tailwindcss.com"></script>
-    <link href="https://cdn.jsdelivr.net/npm/remixicon@3.5.0/fonts/remixicon.css" rel="stylesheet">
+    <link href="https://cdn.jsdelivr.net/npm/remixicon@3.5.0/fonts/remixicon@3.5.0/fonts/remixicon.css" rel="stylesheet">
+    <style>
+        .compare-card { transition: all 0.2s; }
+        .compare-card:hover { transform: translateY(-2px); }
+        .compare-card.selected { border-color: #4f46e5; background: #f5f3ff; }
+    </style>
 </head>
 <body class="bg-gray-50 min-h-screen">
     <!-- 导航栏 -->
@@ -16,9 +21,7 @@
                 <i class="ri-dashboard-3-line text-2xl text-indigo-600"></i>
                 <span class="text-xl font-bold text-gray-800">ParamHub</span>
             </a>
-            <div class="flex gap-4 text-sm" id="topNav">
-                <!-- 动态加载 -->
-            </div>
+            <div class="flex gap-4 text-sm" id="topNav"></div>
         </div>
     </nav>
 
@@ -28,49 +31,60 @@
                 <i class="ri-git-merge-line text-purple-600"></i>
                 对比工具
             </h1>
-            <p class="text-gray-500 mt-1">多维度对比模型或硬件参数</p>
+            <p class="text-gray-500 mt-1">选择类别，对比最多5个产品的参数</p>
         </div>
 
-        <!-- 对比类型选择 -->
+        <!-- 类别选择 -->
         <div class="bg-white rounded-xl shadow-sm p-4 mb-6">
-            <div class="flex gap-4">
-                <button onclick="setCompareType('model')" id="btnModel" class="px-4 py-2 bg-indigo-600 text-white rounded-lg">
-                    <i class="ri-robot-line mr-2"></i>模型对比
-                </button>
-                <button onclick="setCompareType('gpu')" id="btnGpu" class="px-4 py-2 bg-gray-200 text-gray-600 rounded-lg hover:bg-gray-300">
-                    <i class="ri-cpu-line mr-2"></i>GPU对比
-                </button>
-                <button onclick="setCompareType('cpu')" id="btnCpu" class="px-4 py-2 bg-gray-200 text-gray-600 rounded-lg hover:bg-gray-300">
-                    <i class="ri-cpu-line mr-2"></i>CPU对比
-                </button>
+            <label class="text-sm font-medium text-gray-600 mb-3 block">选择对比类别</label>
+            <div id="categoryButtons" class="flex flex-wrap gap-2">
+                <span class="text-gray-400">加载中...</span>
             </div>
         </div>
 
-        <!-- 选择列表 -->
-        <div class="grid grid-cols-2 gap-4 mb-6">
-            <div class="bg-white rounded-xl shadow-sm p-4">
-                <label class="text-sm font-medium text-gray-600 mb-2 block">选择第一项</label>
-                <select id="select1" class="w-full px-4 py-2 border border-gray-200 rounded-lg" onchange="compare()">
-                    <option value="">请选择...</option>
-                </select>
+        <!-- 已选择的产品 -->
+        <div id="selectedArea" class="bg-white rounded-xl shadow-sm p-4 mb-6 hidden">
+            <div class="flex justify-between items-center mb-3">
+                <label class="text-sm font-medium text-gray-600">
+                    已选择 <span id="selectedCount">0</span>/5 个产品
+                </label>
+                <button onclick="clearSelection()" class="text-sm text-red-600 hover:text-red-700">
+                    <i class="ri-close-line mr-1"></i>清空选择
+                </button>
             </div>
-            <div class="bg-white rounded-xl shadow-sm p-4">
-                <label class="text-sm font-medium text-gray-600 mb-2 block">选择第二项</label>
-                <select id="select2" class="w-full px-4 py-2 border border-gray-200 rounded-lg" onchange="compare()">
-                    <option value="">请选择...</option>
-                </select>
+            <div id="selectedProducts" class="flex flex-wrap gap-2"></div>
+        </div>
+
+        <!-- 产品列表 -->
+        <div id="productListArea" class="mb-6 hidden">
+            <div class="bg-white rounded-xl shadow-sm p-4 mb-4">
+                <div class="flex justify-between items-center">
+                    <label class="text-sm font-medium text-gray-600">
+                        点击选择要对比的产品（最多5个）
+                    </label>
+                    <input type="text" id="searchInput" placeholder="搜索产品..." 
+                        class="px-3 py-1 border rounded-lg text-sm w-48"
+                        oninput="filterProducts()">
+                </div>
             </div>
+            <div id="productList" class="grid grid-cols-2 md:grid-cols-3 lg:grid-cols-4 gap-3"></div>
         </div>
 
         <!-- 对比结果 -->
         <div id="compareResult" class="bg-white rounded-xl shadow-sm p-6 hidden">
-            <h2 class="text-lg font-semibold text-gray-800 mb-4">对比结果</h2>
-            <div id="compareTable"></div>
+            <h2 class="text-lg font-semibold text-gray-800 mb-4">
+                <i class="ri-bar-chart-line mr-2 text-purple-600"></i>对比结果
+            </h2>
+            <div id="compareTable" class="overflow-x-auto"></div>
         </div>
-    </main>
+    </div>
 
     <script>
         let categories = [];
+        let currentCategory = null;
+        let categoryData = {};
+        let selectedIds = [];
+        const MAX_COMPARE = 5;
 
         // 加载导航栏
         async function loadNav() {
@@ -104,135 +118,311 @@
 
             document.getElementById('topNav').innerHTML = navHtml;
         }
-let compareType = 'model';
-        let allData = [];
 
-        async function setCompareType(type) {
-            compareType = type;
-            
-            // 更新按钮样式
-            document.getElementById('btnModel').className = type === 'model' 
-                ? 'px-4 py-2 bg-indigo-600 text-white rounded-lg' 
-                : 'px-4 py-2 bg-gray-200 text-gray-600 rounded-lg hover:bg-gray-300';
-            document.getElementById('btnGpu').className = type === 'gpu' 
-                ? 'px-4 py-2 bg-green-600 text-white rounded-lg' 
-                : 'px-4 py-2 bg-gray-200 text-gray-600 rounded-lg hover:bg-gray-300';
-            document.getElementById('btnCpu').className = type === 'cpu' 
-                ? 'px-4 py-2 bg-purple-600 text-white rounded-lg' 
-                : 'px-4 py-2 bg-gray-200 text-gray-600 rounded-lg hover:bg-gray-300';
-            
-            // 加载数据
-            const res = await fetch(`/api/${type}s`);
-            allData = await res.json();
-            
-            // 填充下拉框
-            const select1 = document.getElementById('select1');
-            const select2 = document.getElementById('select2');
-            
-            select1.innerHTML = '<option value="">请选择...</option>' + 
-                allData.map(d => `<option value="${d.id}">${d.name}</option>`).join('');
-            select2.innerHTML = '<option value="">请选择...</option>' + 
-                allData.map(d => `<option value="${d.id}">${d.name}</option>`).join('');
-            
+        // 渲染类别按钮
+        function renderCategoryButtons() {
+            const colorMap = {
+                blue: 'bg-blue-100 text-blue-700 hover:bg-blue-200',
+                green: 'bg-green-100 text-green-700 hover:bg-green-200',
+                purple: 'bg-purple-100 text-purple-700 hover:bg-purple-200',
+                orange: 'bg-orange-100 text-orange-700 hover:bg-orange-200',
+                teal: 'bg-teal-100 text-teal-700 hover:bg-teal-200',
+                red: 'bg-red-100 text-red-700 hover:bg-red-200',
+                indigo: 'bg-indigo-100 text-indigo-700 hover:bg-indigo-200'
+            };
+
+            const html = categories.map(cat => {
+                const colorClass = colorMap[cat.color] || 'bg-gray-100 text-gray-700 hover:bg-gray-200';
+                const activeClass = currentCategory?.id === cat.id ? 'ring-2 ring-indigo-500 ring-offset-2' : '';
+                return `<button onclick="selectCategory('${cat.id}')" 
+                    class="px-4 py-2 rounded-lg ${colorClass} ${activeClass} transition">
+                    <i class="${cat.icon} mr-1"></i>${cat.name}
+                </button>`;
+            }).join('');
+
+            document.getElementById('categoryButtons').innerHTML = html;
+        }
+
+        // 选择类别
+        async function selectCategory(categoryId) {
+            currentCategory = categories.find(c => c.id === categoryId);
+            if (!currentCategory) return;
+
+            // 更新按钮状态
+            renderCategoryButtons();
+
+            // 清空之前的选择
+            selectedIds = [];
+            updateSelectedArea();
+
+            // 加载该类别数据
+            const endpoint = getEndpoint(categoryId);
+            const res = await fetch(endpoint);
+            categoryData[categoryId] = await res.json();
+
+            // 显示产品列表
+            document.getElementById('productListArea').classList.remove('hidden');
+            renderProductList();
             document.getElementById('compareResult').classList.add('hidden');
         }
 
-        async function compare() {
-            const id1 = document.getElementById('select1').value;
-            const id2 = document.getElementById('select2').value;
-            
-            if (!id1 || !id2) {
-                document.getElementById('compareResult').classList.add('hidden');
+        // 获取API端点
+        function getEndpoint(categoryId) {
+            const builtinMap = {
+                'ai-models': '/api/models',
+                'gpus': '/api/gpus',
+                'cpus': '/api/cpus'
+            };
+            return builtinMap[categoryId] || `/api/items/${categoryId}`;
+        }
+
+        // 渲染产品列表
+        function renderProductList() {
+            if (!currentCategory) return;
+
+            const products = categoryData[currentCategory.id] || [];
+            const searchTerm = document.getElementById('searchInput').value.toLowerCase();
+
+            const filtered = products.filter(p => 
+                (p.name || '').toLowerCase().includes(searchTerm) ||
+                (p.organization || p.manufacturer || p.brand || '').toLowerCase().includes(searchTerm)
+            );
+
+            const colorMap = {
+                blue: 'bg-blue-50 border-blue-200',
+                green: 'bg-green-50 border-green-200',
+                purple: 'bg-purple-50 border-purple-200',
+                orange: 'bg-orange-50 border-orange-200',
+                teal: 'bg-teal-50 border-teal-200'
+            };
+            const bgColor = colorMap[currentCategory.color] || 'bg-gray-50 border-gray-200';
+
+            if (filtered.length === 0) {
+                document.getElementById('productList').innerHTML = `
+                    <div class="col-span-full text-center text-gray-400 py-8">暂无数据</div>
+                `;
                 return;
             }
-            
-            const res1 = await fetch(`/api/${compareType}s/${id1}`);
-            const res2 = await fetch(`/api/${compareType}s/${id2}`);
-            
-            const item1 = await res1.json();
-            const item2 = await res2.json();
-            
-            let fields = [];
-            if (compareType === 'model') {
-                fields = [
-                    { key: 'name', label: '名称' },
-                    { key: 'organization', label: '厂商' },
-                    { key: 'parameters', label: '参数量(B)', unit: 'B' },
-                    { key: 'context_length', label: '上下文长度' },
-                    { key: 'mmlu', label: 'MMLU分数', unit: '%' },
-                    { key: 'humaneval', label: 'HumanEval', unit: '%' },
-                    { key: 'is_open_source', label: '类型', format: v => v ? '开源' : '商业' },
-                    { key: 'input_price', label: '输入价格', unit: '$/1K' },
-                    { key: 'output_price', label: '输出价格', unit: '$/1K' },
-                ];
-            } else if (compareType === 'gpu') {
-                fields = [
-                    { key: 'name', label: '名称' },
-                    { key: 'manufacturer', label: '厂商' },
-                    { key: 'architecture', label: '架构' },
-                    { key: 'memory_gb', label: '显存', unit: 'GB' },
-                    { key: 'cuda_cores', label: 'CUDA核心' },
-                    { key: 'fp16_tflops', label: 'FP16性能', unit: 'TF' },
-                    { key: 'price_usd', label: '价格', unit: '$' },
-                ];
+
+            const html = filtered.map(p => {
+                const isSelected = selectedIds.includes(p.id);
+                const selectedClass = isSelected ? 'ring-2 ring-indigo-500 bg-indigo-50' : '';
+                return `
+                    <div onclick="toggleProduct('${p.id}')" 
+                        class="compare-card p-3 rounded-lg border cursor-pointer ${bgColor} ${selectedClass}">
+                        <div class="font-medium text-gray-800">${p.name || '-'}</div>
+                        <div class="text-sm text-gray-500">${p.organization || p.manufacturer || p.brand || ''}</div>
+                        ${isSelected ? '<div class="mt-2 text-xs text-indigo-600"><i class="ri-check-line mr-1"></i>已选择</div>' : ''}
+                    </div>
+                `;
+            }).join('');
+
+            document.getElementById('productList').innerHTML = html;
+        }
+
+        // 切换产品选择
+        function toggleProduct(productId) {
+            const idx = selectedIds.indexOf(productId);
+            if (idx >= 0) {
+                selectedIds.splice(idx, 1);
+            } else if (selectedIds.length < MAX_COMPARE) {
+                selectedIds.push(productId);
             } else {
-                fields = [
-                    { key: 'name', label: '名称' },
-                    { key: 'manufacturer', label: '厂商' },
-                    { key: 'cores', label: '核心数' },
-                    { key: 'threads', label: '线程数' },
-                    { key: 'base_clock_ghz', label: '基础频率', unit: 'GHz' },
-                    { key: 'boost_clock_ghz', label: '加速频率', unit: 'GHz' },
-                    { key: 'l3_cache_mb', label: 'L3缓存', unit: 'MB' },
-                    { key: 'tdp_watts', label: 'TDP', unit: 'W' },
-                    { key: 'price_usd', label: '价格', unit: '$' },
-                ];
+                alert(`最多只能对比${MAX_COMPARE}个产品`);
+                return;
             }
+
+            updateSelectedArea();
+            renderProductList();
             
-            const html = `
+            if (selectedIds.length >= 2) {
+                showCompareResult();
+            } else {
+                document.getElementById('compareResult').classList.add('hidden');
+            }
+        }
+
+        // 更新已选择区域
+        function updateSelectedArea() {
+            const area = document.getElementById('selectedArea');
+            const container = document.getElementById('selectedProducts');
+            const count = document.getElementById('selectedCount');
+
+            if (selectedIds.length === 0) {
+                area.classList.add('hidden');
+                return;
+            }
+
+            area.classList.remove('hidden');
+            count.textContent = selectedIds.length;
+
+            const products = categoryData[currentCategory.id] || [];
+            const html = selectedIds.map(id => {
+                const p = products.find(x => x.id === id);
+                if (!p) return '';
+                return `
+                    <div class="px-3 py-1 bg-indigo-100 text-indigo-700 rounded-full text-sm flex items-center gap-2">
+                        <span>${p.name}</span>
+                        <button onclick="event.stopPropagation(); toggleProduct('${id}')" class="hover:text-indigo-900">
+                            <i class="ri-close-line"></i>
+                        </button>
+                    </div>
+                `;
+            }).join('');
+
+            container.innerHTML = html;
+        }
+
+        // 清空选择
+        function clearSelection() {
+            selectedIds = [];
+            updateSelectedArea();
+            renderProductList();
+            document.getElementById('compareResult').classList.add('hidden');
+        }
+
+        // 搜索过滤
+        function filterProducts() {
+            renderProductList();
+        }
+
+        // 显示对比结果
+        async function showCompareResult() {
+            if (selectedIds.length < 2) return;
+
+            const products = categoryData[currentCategory.id] || [];
+            const selected = selectedIds.map(id => products.find(p => p.id === id)).filter(Boolean);
+
+            // 获取对比字段
+            const fields = getCompareFields();
+
+            // 生成对比表格
+            let html = `
                 <table class="w-full">
                     <thead class="bg-gray-50">
                         <tr>
-                            <th class="px-4 py-2 text-left text-sm font-medium text-gray-600">参数</th>
-                            <th class="px-4 py-2 text-center text-sm font-medium text-gray-600">${item1.name}</th>
-                            <th class="px-4 py-2 text-center text-sm font-medium text-gray-600">${item2.name}</th>
-                            <th class="px-4 py-2 text-center text-sm font-medium text-gray-600">差异</th>
+                            <th class="px-4 py-3 text-left text-sm font-medium text-gray-600 sticky left-0 bg-gray-50">参数</th>
+                            ${selected.map(p => `<th class="px-4 py-3 text-center text-sm font-medium text-gray-800 min-w-[150px]">${p.name}</th>`).join('')}
+                            <th class="px-4 py-3 text-center text-sm font-medium text-gray-600 min-w-[100px]">差异范围</th>
                         </tr>
                     </thead>
                     <tbody class="divide-y">
-                        ${fields.map(f => {
-                            const v1 = item1[f.key] || '-';
-                            const v2 = item2[f.key] || '-';
-                            const fv1 = f.format ? f.format(v1) : (v1 + (f.unit && typeof v1 === 'number' ? f.unit : ''));
-                            const fv2 = f.format ? f.format(v2) : (v2 + (f.unit && typeof v2 === 'number' ? f.unit : ''));
-                            
-                            let diff = '';
-                            if (typeof v1 === 'number' && typeof v2 === 'number') {
-                                const d = v2 - v1;
-                                diff = d > 0 ? `<span class="text-green-600">+${d}${f.unit || ''}</span>` : 
-                                       d < 0 ? `<span class="text-red-600">${d}${f.unit || ''}</span>` : '-';
-                            }
-                            
-                            return `
-                                <tr>
-                                    <td class="px-4 py-2 text-gray-600">${f.label}</td>
-                                    <td class="px-4 py-2 text-center font-medium">${fv1}</td>
-                                    <td class="px-4 py-2 text-center font-medium">${fv2}</td>
-                                    <td class="px-4 py-2 text-center">${diff}</td>
-                                </tr>
-                            `;
-                        }).join('')}
-                    </tbody>
-                </table>
             `;
-            
+
+            fields.forEach(f => {
+                const values = selected.map(p => p[f.key]);
+                const hasNumber = values.some(v => typeof v === 'number' && v !== null);
+                
+                let minVal = null, maxVal = null;
+                if (hasNumber) {
+                    const nums = values.filter(v => typeof v === 'number' && v !== null);
+                    if (nums.length > 0) {
+                        minVal = Math.min(...nums);
+                        maxVal = Math.max(...nums);
+                    }
+                }
+
+                html += `<tr class="hover:bg-gray-50">
+                    <td class="px-4 py-3 text-gray-600 sticky left-0 bg-white">${f.label}</td>`;
+
+                values.forEach(v => {
+                    let display = '-';
+                    if (v !== null && v !== undefined && v !== '') {
+                        if (f.type === 'boolean') {
+                            display = v ? '<span class="text-green-600">是</span>' : '<span class="text-gray-400">否</span>';
+                        } else if (f.type === 'number') {
+                            display = v;
+                        } else if (f.type === 'json' && typeof v === 'object') {
+                            display = `<span class="text-xs text-gray-500">${JSON.stringify(v).substring(0, 30)}...</span>`;
+                        } else {
+                            display = String(v);
+                        }
+                    }
+                    html += `<td class="px-4 py-3 text-center font-medium">${display}</td>`;
+                });
+
+                // 差异范围
+                let diffRange = '-';
+                if (minVal !== null && maxVal !== null && minVal !== maxVal) {
+                    diffRange = `<span class="text-orange-600">${minVal} ~ ${maxVal}</span>`;
+                    if (f.unit) diffRange += `<span class="text-gray-400 text-xs ml-1">${f.unit}</span>`;
+                } else if (minVal !== null) {
+                    diffRange = '<span class="text-gray-400">相同</span>';
+                }
+
+                html += `<td class="px-4 py-3 text-center text-sm">${diffRange}</td>`;
+                html += '</tr>';
+            });
+
+            html += '</tbody></table>';
             document.getElementById('compareTable').innerHTML = html;
             document.getElementById('compareResult').classList.remove('hidden');
         }
 
+        // 获取对比字段
+        function getCompareFields() {
+            if (!currentCategory) return [];
+
+            // 使用类别的 fields 配置
+            const categoryFields = currentCategory.fields || [];
+            
+            if (categoryFields.length > 0) {
+                return categoryFields
+                    .filter(f => !['id', 'created_at', 'updated_at', 'visible', 'raw_text', 'images', 'is_pinned'].includes(f.key))
+                    .slice(0, 15)  // 最多显示15个字段
+                    .map(f => ({
+                        key: f.key,
+                        label: f.label,
+                        type: f.type,
+                        unit: f.unit || null
+                    }));
+            }
+
+            // 兼容旧的内置类别（无 fields 配置时）
+            const builtinFields = {
+                'ai-models': [
+                    { key: 'name', label: '名称', type: 'text' },
+                    { key: 'organization', label: '厂商', type: 'text' },
+                    { key: 'parameters', label: '参数量', type: 'number', unit: 'B' },
+                    { key: 'context_length', label: '上下文长度', type: 'number' },
+                    { key: 'mmlu', label: 'MMLU', type: 'number', unit: '%' },
+                    { key: 'humaneval', label: 'HumanEval', type: 'number', unit: '%' },
+                    { key: 'is_open_source', label: '开源', type: 'boolean' },
+                    { key: 'input_price', label: '输入价格', type: 'number', unit: '$/1K' },
+                    { key: 'output_price', label: '输出价格', type: 'number', unit: '$/1K' },
+                ],
+                'gpus': [
+                    { key: 'name', label: '名称', type: 'text' },
+                    { key: 'manufacturer', label: '厂商', type: 'text' },
+                    { key: 'architecture', label: '架构', type: 'text' },
+                    { key: 'memory_gb', label: '显存', type: 'number', unit: 'GB' },
+                    { key: 'cuda_cores', label: 'CUDA核心', type: 'number' },
+                    { key: 'fp16_tflops', label: 'FP16性能', type: 'number', unit: 'TF' },
+                    { key: 'price_usd', label: '价格', type: 'number', unit: '$' },
+                ],
+                'cpus': [
+                    { key: 'name', label: '名称', type: 'text' },
+                    { key: 'manufacturer', label: '厂商', type: 'text' },
+                    { key: 'cores', label: '核心数', type: 'number' },
+                    { key: 'threads', label: '线程数', type: 'number' },
+                    { key: 'base_clock_ghz', label: '基础频率', type: 'number', unit: 'GHz' },
+                    { key: 'boost_clock_ghz', label: '加速频率', type: 'number', unit: 'GHz' },
+                    { key: 'l3_cache_mb', label: 'L3缓存', type: 'number', unit: 'MB' },
+                    { key: 'tdp_watts', label: 'TDP', type: 'number', unit: 'W' },
+                    { key: 'price_usd', label: '价格', type: 'number', unit: '$' },
+                ]
+            };
+
+            return builtinFields[currentCategory.id] || [];
+        }
+
         // 初始化
-        loadNav();
-        setCompareType('model');
+        async function init() {
+            await loadNav();
+            renderCategoryButtons();
+        }
+
+        init();
     </script>
 </body>
 </html>
\ No newline at end of file
