diff --git a/src/App.tsx b/src/App.tsx
index 0660b00..184eaf1 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -11,7 +11,6 @@ import MarketplacePage from './pages/MarketplacePage';
 import TeamsPage from './pages/TeamsPage';
 import PromptLibraryPage from './pages/PromptLibraryPage';
 import StatsPage from './pages/StatsPage';
-import LLMProvidersPage from './pages/LLMProvidersPage';
 import SharedSessionPage from './pages/SharedSessionPage';
 import WorkflowsPage from './pages/WorkflowsPage';
 import { useAuth } from './store/auth';
@@ -52,7 +51,6 @@ export default function App() {
       <Route path="/teams" element={<TeamsPage />} />
       <Route path="/prompts" element={<PromptLibraryPage />} />
       <Route path="/stats" element={<StatsPage />} />
-      <Route path="/llm-providers" element={<LLMProvidersPage />} />
       <Route path="/workflows" element={<WorkflowsPage />} />
       <Route path="*" element={<Navigate to="/" replace />} />
     </Routes>
diff --git a/src/api.ts b/src/api.ts
index 493d518..d88558b 100644
--- a/src/api.ts
+++ b/src/api.ts
@@ -486,9 +486,45 @@ export interface AgentStats {
   daily: { day: string; count: number }[];
 }
 
+export interface AgentTokenStatsByModel {
+  providerKind: string;
+  model: string;
+  calls: number;
+  promptTokens: number;
+  completionTokens: number;
+  totalTokens: number;
+  costUSD: number;
+}
+
+export interface AgentTokenStatsDaily {
+  day: string;
+  calls: number;
+  promptTokens: number;
+  completionTokens: number;
+  totalTokens: number;
+  costUSD: number;
+}
+
+export interface AgentTokenStats {
+  agentId: string;
+  days: number;
+  promptTokens: number;
+  completionTokens: number;
+  totalTokens: number;
+  costUSD: number;
+  byModel: AgentTokenStatsByModel[];
+  daily: AgentTokenStatsDaily[];
+}
+
 export const StatsAPI = {
   overview: () => api.get<StatsOverview>('/stats/overview').then((r) => r.data),
-  agent: (id: string) => api.get<AgentStats>(`/stats/agents/${id}`).then((r) => r.data)
+  agent: (id: string) => api.get<AgentStats>(`/stats/agents/${id}`).then((r) => r.data),
+  agentTokens: (id: string, opts: { days?: number; limit?: number } = {}) =>
+    api
+      .get<AgentTokenStats>(`/stats/agents/${id}/tokens`, {
+        params: { days: opts.days ?? 30, limit: opts.limit ?? 10 }
+      })
+      .then((r) => r.data)
 };
 
 // ============== 流式（手写 SSE，不用 EventSource，因为它不能 POST） ==============
diff --git a/src/components/Sidebar.tsx b/src/components/Sidebar.tsx
index 25bddc5..64027fb 100644
--- a/src/components/Sidebar.tsx
+++ b/src/components/Sidebar.tsx
@@ -8,7 +8,6 @@ import {
   BookOutlined,
   ApartmentOutlined,
   BarChartOutlined,
-  ApiOutlined,
   TeamOutlined,
   SunOutlined,
   MoonOutlined,
@@ -44,7 +43,6 @@ const NAV_GROUPS: Array<{
     label: '管理',
     items: [
       { to: '/stats', icon: <BarChartOutlined />, label: '调用统计' },
-      { to: '/llm-providers', icon: <ApiOutlined />, label: 'LLM 提供商' },
       { to: '/teams', icon: <TeamOutlined />, label: '团队' }
     ]
   }
diff --git a/src/pages/ChatPage.tsx b/src/pages/ChatPage.tsx
index e42fbb9..4e38f61 100644
--- a/src/pages/ChatPage.tsx
+++ b/src/pages/ChatPage.tsx
@@ -74,6 +74,10 @@ export default function ChatPage() {
   const abortRef = useRef<AbortController | null>(null);
   const autoScrollRef = useRef(true);
   const initialScrollDoneRef = useRef(false);
+  const scrollRafRef = useRef<number | null>(null);
+  const scrollProgrammaticRef = useRef(false);
+  const lastScrollTopRef = useRef(0);
+  const userScrollLockRef = useRef(false);
 
   // URL 参数 ?session=xxx&msg=yyy
   useEffect(() => {
@@ -91,9 +95,21 @@ export default function ChatPage() {
   }, [searchParams]);
 
   const scrollBottom = (force = false) => {
-    if (!force && !autoScrollRef.current) return;
-    requestAnimationFrame(() => {
-      bodyRef.current?.scrollTo({ top: bodyRef.current.scrollHeight, behavior: 'smooth' });
+    if (force) {
+      userScrollLockRef.current = false;
+      autoScrollRef.current = true;
+    }
+    if (!force && (!autoScrollRef.current || userScrollLockRef.current)) return;
+    if (scrollRafRef.current) {
+      cancelAnimationFrame(scrollRafRef.current);
+      scrollRafRef.current = null;
+    }
+    scrollRafRef.current = requestAnimationFrame(() => {
+      scrollRafRef.current = null;
+      const el = bodyRef.current;
+      if (!el) return;
+      scrollProgrammaticRef.current = true;
+      el.scrollTop = el.scrollHeight;
     });
   };
 
@@ -101,8 +117,24 @@ export default function ChatPage() {
     const el = bodyRef.current;
     if (!el) return;
     const onScroll = () => {
+      if (scrollProgrammaticRef.current) {
+        scrollProgrammaticRef.current = false;
+        lastScrollTopRef.current = el.scrollTop;
+      } else {
+        const nextTop = el.scrollTop;
+        const lastTop = lastScrollTopRef.current;
+        if (nextTop < lastTop - 2) {
+          userScrollLockRef.current = true;
+        }
+        lastScrollTopRef.current = nextTop;
+      }
       const distance = el.scrollHeight - el.scrollTop - el.clientHeight;
-      autoScrollRef.current = distance < 32;
+      if (distance < 8) userScrollLockRef.current = false;
+      autoScrollRef.current = distance < 32 && !userScrollLockRef.current;
+      if ((!autoScrollRef.current || userScrollLockRef.current) && scrollRafRef.current) {
+        cancelAnimationFrame(scrollRafRef.current);
+        scrollRafRef.current = null;
+      }
     };
     el.addEventListener('scroll', onScroll, { passive: true });
     onScroll();
@@ -294,7 +326,7 @@ export default function ChatPage() {
             setSessionRefresh((t) => t + 1);
             setAttachments([]); // 用完即清
             setImageUrls([]);
-            scrollBottom(true);
+            scrollBottom();
           },
           onAborted: (data) => {
             // 已停止：保留已生成内容；user 消息也留下（用 tempUser 占位）
diff --git a/src/pages/PromptLibraryPage.tsx b/src/pages/PromptLibraryPage.tsx
index 0d50b45..82d3541 100644
--- a/src/pages/PromptLibraryPage.tsx
+++ b/src/pages/PromptLibraryPage.tsx
@@ -125,7 +125,8 @@ export default function PromptLibraryPage({
     });
 
   return (
-    <div className="page-container">
+    <div className="feature-cover-container">
+      <div className="page-container">
       <div
         style={{
           borderRadius: 24,
@@ -489,6 +490,10 @@ export default function PromptLibraryPage({
           </Form.Item>
         </Form>
       </Modal>
+      </div>
+      <div className="feature-cover">
+        <Empty description="功能规划中，本期不支持" />
+      </div>
     </div>
   );
 }
diff --git a/src/pages/StatsPage.tsx b/src/pages/StatsPage.tsx
index d0598b6..728b0f1 100644
--- a/src/pages/StatsPage.tsx
+++ b/src/pages/StatsPage.tsx
@@ -1,23 +1,43 @@
 import { useEffect, useState } from 'react';
 import { BarChartOutlined, LineChartOutlined, MessageOutlined, RobotOutlined } from '@ant-design/icons';
-import { Card, Empty, App as AntApp, Spin, Tag } from 'antd';
+import { Card, Empty, App as AntApp, Spin, Tag, Select, Space, Table } from 'antd';
 import { Link } from 'react-router-dom';
-import { StatsAPI, StatsOverview } from '../api';
+import { AgentTokenStats, StatsAPI, StatsOverview } from '../api';
 
 export default function StatsPage() {
   const { message } = AntApp.useApp();
   const [data, setData] = useState<StatsOverview | null>(null);
   const [loading, setLoading] = useState(false);
+  const [tokenLoading, setTokenLoading] = useState(false);
+  const [tokenData, setTokenData] = useState<AgentTokenStats | null>(null);
+  const [tokenAgentId, setTokenAgentId] = useState<string>('');
+  const [tokenDays, setTokenDays] = useState<number>(30);
+  const [tokenLimit, setTokenLimit] = useState<number>(10);
 
   useEffect(() => {
     setLoading(true);
     StatsAPI.overview()
-      .then(setData)
+      .then((res) => {
+        setData(res);
+        if (!tokenAgentId && res.topAgents?.[0]?.id) {
+          setTokenAgentId(res.topAgents[0].id);
+        }
+      })
       .catch((e) => message.error('加载失败：' + (e?.message ?? e)))
       .finally(() => setLoading(false));
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
+  useEffect(() => {
+    if (!tokenAgentId) return;
+    setTokenLoading(true);
+    StatsAPI.agentTokens(tokenAgentId, { days: tokenDays, limit: tokenLimit })
+      .then(setTokenData)
+      .catch((e) => message.error('Token 统计加载失败：' + (e?.message ?? e)))
+      .finally(() => setTokenLoading(false));
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [tokenAgentId, tokenDays, tokenLimit]);
+
   if (loading) return <Spin style={{ marginTop: 80, display: 'block' }} />;
   if (!data) return <Empty description="暂无数据" style={{ marginTop: 80 }} />;
 
@@ -25,6 +45,8 @@ export default function StatsPage() {
   const maxAgent = Math.max(1, ...data.topAgents.map((a) => a.messageCount));
   const last7Days = data.daily.slice(-7).reduce((sum, item) => sum + item.total, 0);
   const avgSessionMessages = data.sessionCount > 0 ? (data.messageCount / data.sessionCount).toFixed(1) : '0.0';
+  const formatUSD = (v?: number | null) =>
+    `$${Number(v || 0).toLocaleString(undefined, { minimumFractionDigits: 4, maximumFractionDigits: 4 })}`;
 
   return (
     <div className="page-container">
@@ -250,6 +272,176 @@ export default function StatsPage() {
             )}
         </Card>
       </div>
+
+      <div style={{ marginTop: 18 }}>
+        <Card
+          title="Token 使用量"
+          extra={
+            <Space size={10} wrap>
+              <Select
+                size="small"
+                value={tokenAgentId || undefined}
+                style={{ minWidth: 220 }}
+                placeholder="选择智能体"
+                onChange={setTokenAgentId}
+                options={data.topAgents.map((a) => ({ value: a.id, label: a.name }))}
+              />
+              <Select
+                size="small"
+                value={tokenDays}
+                style={{ width: 120 }}
+                onChange={setTokenDays}
+                options={[
+                  { value: 7, label: '近 7 天' },
+                  { value: 30, label: '近 30 天' },
+                  { value: 90, label: '近 90 天' }
+                ]}
+              />
+              <Select
+                size="small"
+                value={tokenLimit}
+                style={{ width: 120 }}
+                onChange={setTokenLimit}
+                options={[
+                  { value: 5, label: 'Top 5' },
+                  { value: 10, label: 'Top 10' },
+                  { value: 20, label: 'Top 20' }
+                ]}
+              />
+            </Space>
+          }
+          style={{ borderRadius: 22, boxShadow: '0 12px 28px rgba(15, 23, 42, 0.045)' }}
+        >
+          {tokenLoading ? (
+            <Spin style={{ marginTop: 20, display: 'block' }} />
+          ) : !tokenAgentId ? (
+            <Empty description="暂无可统计的智能体" style={{ marginTop: 20 }} />
+          ) : !tokenData ? (
+            <Empty description="暂无 Token 统计数据" style={{ marginTop: 20 }} />
+          ) : (
+            <>
+              <div style={{ display: 'grid', gridTemplateColumns: 'repeat(4, minmax(0, 1fr))', gap: 14, marginBottom: 16 }}>
+                {[
+                  { label: '总 Token', value: tokenData.totalTokens, tone: 'rgba(8, 145, 178, 0.10)', color: 'var(--color-brand)' },
+                  { label: '输入 Token', value: tokenData.promptTokens, tone: 'rgba(14, 165, 233, 0.10)', color: 'var(--color-info)' },
+                  { label: '输出 Token', value: tokenData.completionTokens, tone: 'rgba(34, 197, 94, 0.10)', color: 'var(--color-success)' },
+                  { label: '费用 (USD)', value: formatUSD(tokenData.costUSD), tone: 'rgba(249, 115, 22, 0.10)', color: 'var(--color-warning)' }
+                ].map((item) => (
+                  <div
+                    key={item.label}
+                    style={{
+                      borderRadius: 18,
+                      padding: '16px 18px',
+                      background: 'rgba(255,255,255,0.72)',
+                      border: '1px solid rgba(255,255,255,0.7)'
+                    }}
+                  >
+                    <div style={{ fontSize: 12.5, color: 'var(--color-text-secondary)', marginBottom: 10 }}>
+                      <span
+                        style={{
+                          display: 'inline-block',
+                          width: 10,
+                          height: 10,
+                          borderRadius: 999,
+                          background: item.color,
+                          marginRight: 6,
+                          verticalAlign: 'middle'
+                        }}
+                      />
+                      {item.label}
+                    </div>
+                    <div style={{ fontSize: 26, fontWeight: 700, color: 'var(--color-text)' }}>
+                      {typeof item.value === 'number' ? item.value.toLocaleString() : item.value}
+                    </div>
+                  </div>
+                ))}
+              </div>
+
+              <div style={{ display: 'grid', gridTemplateColumns: 'minmax(0, 1fr) minmax(0, 1fr)', gap: 18 }}>
+                <Card
+                  size="small"
+                  title="近 N 天趋势（总 Token）"
+                  extra={
+                    <Tag bordered={false} style={{ borderRadius: 999, background: 'var(--color-surface-2)', color: 'var(--color-text-secondary)' }}>
+                      days={tokenData.days}
+                    </Tag>
+                  }
+                  style={{ borderRadius: 18, boxShadow: 'none' }}
+                >
+                  {tokenData.daily.length === 0 ? (
+                    <Empty description="暂无" />
+                  ) : (
+                    <div style={{ display: 'flex', alignItems: 'flex-end', gap: 6, height: 220, padding: '18px 12px 10px' }}>
+                      {(() => {
+                        const maxTokenDaily = Math.max(1, ...tokenData.daily.map((d) => d.totalTokens));
+                        return tokenData.daily.map((d) => {
+                          const h = (d.totalTokens / maxTokenDaily) * 170;
+                          return (
+                            <div
+                              key={d.day}
+                              style={{
+                                flex: 1,
+                                display: 'flex',
+                                flexDirection: 'column',
+                                alignItems: 'center',
+                                position: 'relative',
+                                minWidth: 0
+                              }}
+                              title={`${d.day}\nCalls ${d.calls}\nTotalTokens ${d.totalTokens}\nCost ${formatUSD(d.costUSD)}`}
+                            >
+                              <div
+                                style={{
+                                  width: 12,
+                                  height: h,
+                                  background: 'var(--gradient-brand)',
+                                  borderRadius: '6px 6px 0 0'
+                                }}
+                              />
+                              <div style={{ fontSize: 10, color: 'var(--color-text-tertiary)', marginTop: 6, transform: 'rotate(-45deg)' }}>
+                                {d.day.slice(5)}
+                              </div>
+                            </div>
+                          );
+                        });
+                      })()}
+                    </div>
+                  )}
+                </Card>
+
+                <Card
+                  size="small"
+                  title="模型消耗排行"
+                  style={{ borderRadius: 18, boxShadow: 'none' }}
+                >
+                  <Table
+                    size="small"
+                    pagination={false}
+                    rowKey={(r) => `${r.providerKind}:${r.model}`}
+                    dataSource={tokenData.byModel || []}
+                    columns={[
+                      { title: 'Provider', dataIndex: 'providerKind', width: 110 },
+                      { title: 'Model', dataIndex: 'model' },
+                      { title: 'Calls', dataIndex: 'calls', width: 80 },
+                      {
+                        title: 'Tokens',
+                        dataIndex: 'totalTokens',
+                        width: 110,
+                        render: (v) => Number(v || 0).toLocaleString()
+                      },
+                      {
+                        title: 'Cost',
+                        dataIndex: 'costUSD',
+                        width: 110,
+                        render: (v) => formatUSD(v)
+                      }
+                    ]}
+                  />
+                </Card>
+              </div>
+            </>
+          )}
+        </Card>
+      </div>
     </div>
   );
 }
diff --git a/src/pages/TeamsPage.tsx b/src/pages/TeamsPage.tsx
index 1f37345..c41dc2c 100644
--- a/src/pages/TeamsPage.tsx
+++ b/src/pages/TeamsPage.tsx
@@ -47,7 +47,8 @@ export default function TeamsPage() {
   };
 
   return (
-    <div className="page-container" style={{ maxWidth: 1080 }}>
+    <div className="feature-cover-container">
+      <div className="page-container" style={{ maxWidth: 1080 }}>
       <div
         style={{
           borderRadius: 24,
@@ -390,6 +391,10 @@ export default function TeamsPage() {
           </Form>
         )}
       </Modal>
-    </div>
+      </div>
+      <div className="feature-cover">
+        <Empty description="功能规划中，本期不支持" />
+      </div>
+    </div>
   );
 }
diff --git a/src/pages/WorkflowsPage.tsx b/src/pages/WorkflowsPage.tsx
index 1687dbd..fc8ca61 100644
--- a/src/pages/WorkflowsPage.tsx
+++ b/src/pages/WorkflowsPage.tsx
@@ -135,7 +135,8 @@ export default function WorkflowsPage() {
   };
 
   return (
-    <div className="page-container" style={{ maxWidth: 1400 }}>
+    <div className="feature-cover-container">
+      <div className="page-container" style={{ maxWidth: 1400 }}>
       <div
         style={{
           borderRadius: 24,
@@ -358,6 +359,10 @@ export default function WorkflowsPage() {
           onClose={() => setRunsOpen(false)}
         />
       )}
+      </div>
+      <div className="feature-cover">
+        <Empty description="功能规划中，本期不支持" />
+      </div>
     </div>
   );
 }
diff --git a/src/styles.css b/src/styles.css
index 93ed966..f218bb2 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -1004,6 +1004,29 @@ body {
   padding: 40px 32px 60px;
 }
 
+.feature-cover-container {
+  position: relative;
+}
+
+.feature-cover {
+  position: absolute;
+  inset: 0;
+  z-index: 20;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: rgba(255, 255, 255, 0.74);
+  backdrop-filter: blur(2px);
+}
+
+.feature-cover .ant-empty {
+  padding: 26px 30px;
+  border-radius: 16px;
+  background: rgba(255, 255, 255, 0.92);
+  border: 1px solid var(--color-border);
+  box-shadow: var(--shadow-md);
+}
+
 .page-header {
   margin-bottom: 32px;
 }