diff --git a/web/static/i18n/en-US.json b/web/static/i18n/en-US.json
index 3720484a..a477b1ef 100644
--- a/web/static/i18n/en-US.json
+++ b/web/static/i18n/en-US.json
@@ -595,7 +595,11 @@
       "knowledge": "Knowledge base",
       "robots": "Bots",
       "terminal": "Terminal",
-      "security": "Security"
+      "security": "Security",
+      "infocollect": "Recon"
+    },
+    "infocollect": {
+      "title": "Reconnaissance"
     },
     "knowledge": {
       "title": "Knowledge base"
@@ -1256,6 +1260,9 @@
     "openaiBaseUrlPlaceholder": "https://api.openai.com/v1",
     "openaiApiKeyPlaceholder": "Enter OpenAI API Key",
     "modelPlaceholder": "gpt-4",
+    "maxTotalTokens": "Max Context Tokens",
+    "maxTotalTokensPlaceholder": "120000",
+    "maxTotalTokensHint": "Shared by memory compression and attack chain building. Default: 120000",
     "fofaBaseUrlPlaceholder": "https://fofa.info/api/v1/search/all (optional)",
     "fofaBaseUrlHint": "Leave empty for default.",
     "email": "Email",
diff --git a/web/static/i18n/zh-CN.json b/web/static/i18n/zh-CN.json
index 22c0586f..6d448740 100644
--- a/web/static/i18n/zh-CN.json
+++ b/web/static/i18n/zh-CN.json
@@ -595,7 +595,11 @@
       "knowledge": "知识库",
       "robots": "机器人设置",
       "terminal": "终端",
-      "security": "安全设置"
+      "security": "安全设置",
+      "infocollect": "信息收集"
+    },
+    "infocollect": {
+      "title": "信息收集"
     },
     "knowledge": {
       "title": "知识库设置"
@@ -1256,6 +1260,9 @@
     "openaiBaseUrlPlaceholder": "https://api.openai.com/v1",
     "openaiApiKeyPlaceholder": "输入OpenAI API Key",
     "modelPlaceholder": "gpt-4",
+    "maxTotalTokens": "最大上下文 Token 数",
+    "maxTotalTokensPlaceholder": "120000",
+    "maxTotalTokensHint": "内存压缩和攻击链构建共用此配置，默认 120000",
     "fofaBaseUrlPlaceholder": "https://fofa.info/api/v1/search/all（可选）",
     "fofaBaseUrlHint": "留空则使用默认地址。",
     "email": "Email",
diff --git a/web/static/js/settings.js b/web/static/js/settings.js
index 70d4cb8c..0428b9da 100644
--- a/web/static/js/settings.js
+++ b/web/static/js/settings.js
@@ -109,6 +109,10 @@ async function loadConfig(loadTools = true) {
         document.getElementById('openai-api-key').value = currentConfig.openai.api_key || '';
         document.getElementById('openai-base-url').value = currentConfig.openai.base_url || '';
         document.getElementById('openai-model').value = currentConfig.openai.model || '';
+        const maxTokensEl = document.getElementById('openai-max-total-tokens');
+        if (maxTokensEl) {
+            maxTokensEl.value = currentConfig.openai.max_total_tokens || 120000;
+        }
 
         // 填充FOFA配置
         const fofa = currentConfig.fofa || {};
@@ -829,7 +833,8 @@ async function applySettings() {
                 provider: provider,
                 api_key: apiKey,
                 base_url: baseUrl,
-                model: model
+                model: model,
+                max_total_tokens: parseInt(document.getElementById('openai-max-total-tokens')?.value) || 120000
             },
             fofa: {
                 email: document.getElementById('fofa-email')?.value.trim() || '',
diff --git a/web/templates/index.html b/web/templates/index.html
index 7f5825a5..a9eddc2e 100644
--- a/web/templates/index.html
+++ b/web/templates/index.html
@@ -1338,6 +1338,9 @@
                                 <div class="settings-nav-item active" data-section="basic" onclick="switchSettingsSection('basic')">
                                     <span data-i18n="settings.nav.basic">基本设置</span>
                                 </div>
+                                <div class="settings-nav-item" data-section="infocollect" onclick="switchSettingsSection('infocollect')">
+                                    <span data-i18n="settings.nav.infocollect">信息收集</span>
+                                </div>
                                 <div class="settings-nav-item" data-section="knowledge" onclick="switchSettingsSection('knowledge')">
                                     <span data-i18n="settings.nav.knowledge">知识库</span>
                                 </div>
@@ -1384,6 +1387,11 @@
                                             <label for="openai-model"><span data-i18n="settingsBasic.model">模型</span> <span style="color: red;">*</span></label>
                                             <input type="text" id="openai-model" data-i18n="settingsBasic.modelPlaceholder" data-i18n-attr="placeholder" placeholder="gpt-4" required />
                                         </div>
+                                        <div class="form-group">
+                                            <label for="openai-max-total-tokens"><span data-i18n="settingsBasic.maxTotalTokens">最大上下文 Token 数</span></label>
+                                            <input type="number" id="openai-max-total-tokens" data-i18n="settingsBasic.maxTotalTokensPlaceholder" data-i18n-attr="placeholder" placeholder="120000" min="1000" step="1000" />
+                                            <small style="color: var(--text-muted, #718096); font-size: 0.75rem;" data-i18n="settingsBasic.maxTotalTokensHint">内存压缩和攻击链构建共用此配置，默认 120000</small>
+                                        </div>
                                         <div style="display: flex; align-items: center; gap: 8px; margin-top: 2px;">
                                             <a href="javascript:void(0)" id="test-openai-btn" onclick="testOpenAIConnection()" style="font-size: 0.8125rem; color: var(--accent-color, #3182ce); text-decoration: none; cursor: pointer; user-select: none;" data-i18n="settingsBasic.testConnection">测试连接</a>
                                             <span id="test-openai-result" style="font-size: 0.8125rem;"></span>
@@ -1391,27 +1399,6 @@
                                     </div>
                                 </div>
 
-                                <!-- FOFA配置 -->
-                                <div class="settings-subsection">
-                                    <h4 data-i18n="settingsBasic.fofaConfig">FOFA 配置</h4>
-                                    <div class="settings-form">
-                                        <div class="form-group">
-                                            <label for="fofa-base-url">Base URL</label>
-                                            <input type="text" id="fofa-base-url" data-i18n="settingsBasic.fofaBaseUrlPlaceholder" data-i18n-attr="placeholder" placeholder="https://fofa.info/api/v1/search/all（可选）" />
-                                            <small class="form-hint" data-i18n="settingsBasic.fofaBaseUrlHint">留空则使用默认地址。</small>
-                                        </div>
-                                        <div class="form-group">
-                                            <label for="fofa-email" data-i18n="settingsBasic.email">Email</label>
-                                            <input type="text" id="fofa-email" data-i18n="settingsBasic.fofaEmailPlaceholder" data-i18n-attr="placeholder" placeholder="输入 FOFA 账号邮箱" autocomplete="off" />
-                                        </div>
-                                        <div class="form-group">
-                                            <label for="fofa-api-key">API Key</label>
-                                            <input type="password" id="fofa-api-key" data-i18n="settingsBasic.fofaApiKeyPlaceholder" data-i18n-attr="placeholder" placeholder="输入 FOFA API Key" autocomplete="off" />
-                                            <small class="form-hint" data-i18n="settingsBasic.fofaApiKeyHint">仅保存在服务器配置中（`config.yaml`）。</small>
-                                        </div>
-                                    </div>
-                                </div>
-
                                 <!-- Agent配置 -->
                                 <div class="settings-subsection">
                                     <h4 data-i18n="settingsBasic.agentConfig">Agent 配置</h4>
@@ -1451,6 +1438,34 @@
                                 </div>
                             </div>
 
+                            <!-- 信息收集设置 -->
+                            <div id="settings-section-infocollect" class="settings-section-content">
+                                <div class="settings-section-header">
+                                    <h3 data-i18n="settings.infocollect.title">信息收集</h3>
+                                </div>
+
+                                <!-- FOFA配置 -->
+                                <div class="settings-subsection">
+                                    <h4 data-i18n="settingsBasic.fofaConfig">FOFA 配置</h4>
+                                    <div class="settings-form">
+                                        <div class="form-group">
+                                            <label for="fofa-base-url">Base URL</label>
+                                            <input type="text" id="fofa-base-url" data-i18n="settingsBasic.fofaBaseUrlPlaceholder" data-i18n-attr="placeholder" placeholder="https://fofa.info/api/v1/search/all（可选）" />
+                                            <small class="form-hint" data-i18n="settingsBasic.fofaBaseUrlHint">留空则使用默认地址。</small>
+                                        </div>
+                                        <div class="form-group">
+                                            <label for="fofa-email" data-i18n="settingsBasic.email">Email</label>
+                                            <input type="text" id="fofa-email" data-i18n="settingsBasic.fofaEmailPlaceholder" data-i18n-attr="placeholder" placeholder="输入 FOFA 账号邮箱" autocomplete="off" />
+                                        </div>
+                                        <div class="form-group">
+                                            <label for="fofa-api-key">API Key</label>
+                                            <input type="password" id="fofa-api-key" data-i18n="settingsBasic.fofaApiKeyPlaceholder" data-i18n-attr="placeholder" placeholder="输入 FOFA API Key" autocomplete="off" />
+                                            <small class="form-hint" data-i18n="settingsBasic.fofaApiKeyHint">仅保存在服务器配置中（`config.yaml`）。</small>
+                                        </div>
+                                    </div>
+                                </div>
+                            </div>
+
                             <!-- 知识库设置 -->
                             <div id="settings-section-knowledge" class="settings-section-content">
                                 <div class="settings-section-header">