diff --git a/frontend-web/src/roundtable-planning/pages/BusinessChainEditorPage.tsx b/frontend-web/src/roundtable-planning/pages/BusinessChainEditorPage.tsx
index e28c07e5..5587e1fa 100644
--- a/frontend-web/src/roundtable-planning/pages/BusinessChainEditorPage.tsx
+++ b/frontend-web/src/roundtable-planning/pages/BusinessChainEditorPage.tsx
@@ -63,12 +63,6 @@ import {
 import { CSS } from "@dnd-kit/utilities";
 
 import { cn } from "@/lib/utils";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-} from "@/components/ui/dialog";
 import { TagSearchBar } from "@/components/workspace/tags/tag-search-bar";
 import { listAgents } from "@/core/agents";
 
@@ -112,7 +106,6 @@ import {
   type StageGroups,
 } from "@/roundtable-planning/lib/chain-stages";
 import { getAvatarTypeFor } from "@/roundtable-planning/lib/roundtable-constants";
-import { DagFlowChart } from "@/roundtable-planning/components/DagFlowChart";
 import { ChainFlowDiagram } from "@/roundtable-planning/components/ChainFlowDiagram";
 import { AgentDetailSheet } from "@/roundtable-planning/components/AgentDetailSheet";
 
@@ -166,8 +159,7 @@ export default function BusinessChainEditorPage() {
 
   const [activeDrag, setActiveDrag] = useState<ActiveDrag>(null);
   const [dropdownOpen, setDropdownOpen] = useState(false);
-  const [flowOpen, setFlowOpen] = useState(false);
-  // 两步向导：1=基本信息（标题/描述/总控提示词），2=链条编排（双栏拖拽编辑器）。
+  // 两步向导：1=链条编排（双栏拖拽编辑器），2=基本信息（标题/描述/总控提示词 + 流程图预览）。
   const [step, setStep] = useState<1 | 2>(1);
   // 详情抽屉：左栏点卡片本体、右栏点「查看详情」都打开它，展示该智能体详情。
   const [detailAgent, setDetailAgent] = useState<{ id: string; name?: string } | null>(null);
@@ -207,29 +199,7 @@ export default function BusinessChainEditorPage() {
   );
 
   // ─── Phase 7 只读流程图预览（§2.2 底部 / §7）──────────────────────────────
-  // 把当前分层（去掉空 stage）映射成 DagFlowChart 的 stages，并提供席位名/配色解析。
-  const previewStages = useMemo(
-    () =>
-      stageGroups
-        .filter((g) => g.seats.length > 0)
-        .map((g, i) => ({ id: `stage-${i}`, agentIds: g.seats.map((s) => s.agent_id) })),
-    [stageGroups],
-  );
-  const seatNameById = useMemo(() => {
-    const m = new Map<string, string>();
-    for (const g of displayStageGroups)
-      for (const s of g.seats) m.set(s.agent_id.toLowerCase(), s.name || s.agent_id);
-    return m;
-  }, [displayStageGroups]);
-  const resolvePreviewSeat = useCallback(
-    (agentId: string, order: number) => ({
-      name: seatNameById.get(agentId.toLowerCase()) ?? agentId,
-      avatarType: getAvatarTypeFor(agentId, order),
-    }),
-    [seatNameById],
-  );
-
-  // 步骤一右侧「精美流程图」的数据源：过滤空 stage，带上各阶段目标作为依赖标签。
+  // 步骤二右侧「精美流程图」的数据源：过滤空 stage，带上各阶段目标作为依赖标签。
   const flowStages = useMemo(
     () =>
       displayStageGroups
@@ -1129,8 +1099,8 @@ export default function BusinessChainEditorPage() {
       )}
 
       {/* Phase 7：分层 DAG 只读流程图预览（§2.2 底部）。空编排时不渲染。
-          改为弹窗查看：底栏一个入口按钮，点击后在 Dialog 内展示完整流程图。 */}
-      {step === 1 && previewStages.length > 0 && (
+          底栏入口按钮直接进入第二步「基本信息」，右侧展示完整流程图。 */}
+      {step === 1 && hasFlowContent && (
         <section className="shrink-0 flex items-center justify-between gap-2 border-t border-border bg-card px-6 py-2">
           <span className="flex items-center gap-2 text-[11px] font-semibold text-muted-foreground">
             <span>编排预览</span>
@@ -1140,7 +1110,7 @@ export default function BusinessChainEditorPage() {
           </span>
           <button
             type="button"
-            onClick={() => setFlowOpen(true)}
+            onClick={() => setStep(2)}
             className="inline-flex items-center gap-1.5 rounded-lg border border-primary/30 bg-primary/5 px-2.5 py-1 text-xs font-semibold text-primary transition hover:bg-primary/10"
           >
             <Network className="size-3.5" />
@@ -1149,27 +1119,6 @@ export default function BusinessChainEditorPage() {
         </section>
       )}
 
-      {/* 编排流程图弹窗 */}
-      {previewStages.length > 0 && (
-        <Dialog open={flowOpen} onOpenChange={setFlowOpen}>
-          <DialogContent className="flex max-h-[88vh] w-[94vw] flex-col gap-0 sm:max-w-[1100px]">
-            <DialogHeader className="shrink-0">
-              <DialogTitle className="flex items-center gap-2">
-                <Network className="size-5 text-primary" />
-                编排流程图
-              </DialogTitle>
-            </DialogHeader>
-            <div className="min-h-0 flex-1 overflow-auto pt-2">
-              <DagFlowChart
-                stages={previewStages}
-                resolveSeat={resolvePreviewSeat}
-                showReportMilestone={false}
-              />
-            </div>
-          </DialogContent>
-        </Dialog>
-      )}
-
       {/* 智能体详情抽屉（左栏卡片 / 右栏席位共用） */}
       <AgentDetailSheet
         agentId={detailAgent?.id ?? null}