diff --git a/src/app/page.tsx b/src/app/page.tsx
index 5d2ed6e..bfa2af4 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -22,92 +22,6 @@ import type {
 } from '@/lib/types';
 import type { VIDEO_TEMPLATES } from '@/lib/templates';
 
-function sessionModeLabel(mode?: GenSession['inputMode']) {
-  if (mode === 'remix') return '二创';
-  if (mode === 'replicate') return '复刻';
-  if (mode === 'extend') return '补全';
-  return '想法';
-}
-
-function sessionReferenceImages(session: GenSession) {
-  const uploaded = session.uploadedImages?.map(image => ({
-    url: image.url,
-    label: image.role === 'subject' ? '主体图' : image.role === 'reference' ? '参考图' : image.accessoryName || image.role,
-  })) ?? [];
-  if (uploaded.length) return uploaded;
-  return session.refImages.map((url, index) => ({ url, label: `参考 ${index + 1}` }));
-}
-
-function CurrentSessionRail({ session }: { session: GenSession }) {
-  const refs = sessionReferenceImages(session);
-  const selectedCount = session.images.filter(image => image.status === 'selected').length;
-  const packCount = session.packs?.length ?? 0;
-
-  return (
-    <aside className="border-b border-[#8cb478]/12 bg-black/16 p-5 lg:border-b-0 lg:border-r">
-      <div className="space-y-1.5">
-        <span className="section-eyebrow">Step · 02 · Session</span>
-        <div className="text-[10px] text-white/34">当前项目信息放在这里</div>
-      </div>
-
-      <div className="mt-5 rounded-[8px] border border-[#e6f578]/45 bg-[#e6f578]/10 p-3">
-        <div className="flex items-center justify-between gap-2">
-          <div className="text-[10px] uppercase tracking-[0.14em] text-[#e6f578]/65">已选项目</div>
-          <span className="rounded-full border border-white/10 bg-black/28 px-2 py-0.5 text-[10px] text-white/50">
-            {sessionModeLabel(session.inputMode)}
-          </span>
-        </div>
-        <div className="mt-3 line-clamp-5 text-sm font-semibold leading-relaxed text-white">
-          {session.characterSpec?.name || session.prompt || '未填写'}
-        </div>
-        <div className="mt-3 text-[10px] text-white/38">
-          {new Date(session.createdAt).toLocaleString('zh-CN', { month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit' })}
-        </div>
-      </div>
-
-      <div className="mt-5 grid grid-cols-3 gap-2 text-[10px] text-white/42">
-        <div className="rounded-[8px] border border-[#8cb478]/14 bg-black/22 p-2">
-          <div>图片</div>
-          <b className="mt-1 block text-[13px] text-white">{session.images.length}</b>
-        </div>
-        <div className="rounded-[8px] border border-[#8cb478]/14 bg-black/22 p-2">
-          <div>选中</div>
-          <b className="mt-1 block text-[13px] text-[#e6f578]">{selectedCount}</b>
-        </div>
-        <div className="rounded-[8px] border border-[#8cb478]/14 bg-black/22 p-2">
-          <div>素材包</div>
-          <b className="mt-1 block text-[13px] text-white">{packCount}</b>
-        </div>
-      </div>
-
-      <div className="mt-5">
-        <div className="mb-2 text-[10px] uppercase tracking-[0.14em] text-white/38">Reference</div>
-        {refs.length ? (
-          <div className="grid grid-cols-2 gap-2">
-            {refs.slice(0, 6).map((ref, index) => (
-              <div key={`${ref.url}-${index}`} className="relative aspect-square overflow-hidden rounded-[8px] bg-white ring-1 ring-white/10">
-                <img src={ref.url} alt={ref.label} className="h-full w-full object-contain" />
-                <span className="absolute bottom-1 left-1 rounded bg-black/70 px-1.5 py-0.5 text-[9px] text-white/70">
-                  {ref.label}
-                </span>
-              </div>
-            ))}
-          </div>
-        ) : (
-          <div className="rounded-[8px] border border-dashed border-[#8cb478]/18 bg-black/18 px-3 py-4 text-xs text-white/34">
-            没有参考图
-          </div>
-        )}
-      </div>
-
-      <div className="mt-5 rounded-[8px] border border-[#8cb478]/14 bg-black/22 p-3">
-        <div className="text-[10px] uppercase tracking-[0.14em] text-white/38">Session ID</div>
-        <div className="mt-2 break-all font-mono text-[10px] text-white/42">{session.id}</div>
-      </div>
-    </aside>
-  );
-}
-
 export default function Home() {
   const [sessions, setSessions] = useState<GenSession[]>([]);
   const [current, setCurrent] = useState<GenSession | null>(null);
@@ -439,35 +353,30 @@ export default function Home() {
               />
             )}
             {current && (
-              <section className="card overflow-hidden">
-                <div className="grid lg:grid-cols-[268px_minmax(0,1fr)]">
-                  <CurrentSessionRail session={current} />
-                  <div className="space-y-5 p-7">
-                    <div className="flex items-end justify-between gap-4">
-                      <div>
-                        <span className="section-eyebrow">Step · 03 · Quick Screen</span>
-                        <h2 className="mt-2 text-lg font-semibold text-white">本次生成</h2>
-                        <p className="text-xs text-white/40 mt-1">
-                          {new Date(current.createdAt).toLocaleString('zh-CN')}
-                        </p>
-                      </div>
-                      <code className="max-w-[220px] truncate text-[11px] text-white/30 font-mono">{current.id}</code>
-                    </div>
-                    <ResultGrid images={current.images} onAction={handleAction} />
-                    <PackPanel
-                      session={current}
-                      loadingKind={loadingKind}
-                      allLoading={allLoading}
-                      characterLoading={characterLoading}
-                      videoLoading={videoLoading}
-                      onGenerate={handleGeneratePack}
-                      onGenerateAll={handleGenerateAll}
-                      onLockCharacter={handleLockCharacter}
-                      onRegenerateAsset={handleRegenerateAsset}
-                      onGenerateVideo={handleGenerateVideo}
-                    />
+              <section className="space-y-5">
+                <div className="flex items-end justify-between gap-4">
+                  <div>
+                    <span className="section-eyebrow">Step · 02 · Quick Screen</span>
+                    <h2 className="mt-2 text-lg font-semibold text-white">本次生成</h2>
+                    <p className="text-xs text-white/40 mt-1">
+                      {new Date(current.createdAt).toLocaleString('zh-CN')}
+                    </p>
                   </div>
+                  <code className="max-w-[220px] truncate text-[11px] text-white/30 font-mono">{current.id}</code>
                 </div>
+                <ResultGrid images={current.images} onAction={handleAction} />
+                <PackPanel
+                  session={current}
+                  loadingKind={loadingKind}
+                  allLoading={allLoading}
+                  characterLoading={characterLoading}
+                  videoLoading={videoLoading}
+                  onGenerate={handleGeneratePack}
+                  onGenerateAll={handleGenerateAll}
+                  onLockCharacter={handleLockCharacter}
+                  onRegenerateAsset={handleRegenerateAsset}
+                  onGenerateVideo={handleGenerateVideo}
+                />
               </section>
             )}
           </div>
diff --git a/src/components/Sidebar.tsx b/src/components/Sidebar.tsx
index 7bf3901..555a225 100644
--- a/src/components/Sidebar.tsx
+++ b/src/components/Sidebar.tsx
@@ -2,6 +2,76 @@
 
 import type { GenSession } from '@/lib/types';
 
+function modeLabel(mode?: GenSession['inputMode']) {
+  if (mode === 'remix') return '二创';
+  if (mode === 'replicate') return '复刻';
+  if (mode === 'extend') return '补全';
+  return '想法';
+}
+
+function imageSourcesForSession(session: GenSession) {
+  const uploaded = session.uploadedImages?.map(image => ({
+    url: image.url,
+    label: image.role === 'subject' ? '主体图' : image.role === 'reference' ? '参考图' : image.accessoryName || image.role,
+  })) ?? [];
+  if (uploaded.length) return uploaded;
+  return session.refImages.map((url, index) => ({ url, label: `参考 ${index + 1}` }));
+}
+
+function ActiveSessionDetail({ session }: { session: GenSession }) {
+  const refs = imageSourcesForSession(session);
+  const selectedCount = session.images.filter(image => image.status === 'selected').length;
+  const packCount = session.packs?.length ?? 0;
+
+  return (
+    <div className="ml-3 mt-2 rounded-[8px] border border-[#e6f578]/24 bg-[#e6f578]/[0.055] p-3 shadow-[0_18px_52px_-38px_rgba(230,245,120,0.82)]">
+      <div className="flex items-center justify-between gap-2">
+        <div className="text-[9px] uppercase tracking-[0.16em] text-[#e6f578]/65">下级信息</div>
+        <span className="rounded-full border border-white/10 bg-black/28 px-2 py-0.5 text-[9px] text-white/48">
+          {modeLabel(session.inputMode)}
+        </span>
+      </div>
+
+      <div className="mt-2 line-clamp-4 text-[11px] font-medium leading-relaxed text-white/80">
+        {session.characterSpec?.name || session.prompt || '未填写'}
+      </div>
+
+      <div className="mt-3 grid grid-cols-3 gap-1.5 text-[9px] text-white/44">
+        <div className="rounded-[6px] bg-black/22 px-2 py-1.5">
+          <div>图片</div>
+          <b className="mt-0.5 block text-[11px] text-white/78">{session.images.length}</b>
+        </div>
+        <div className="rounded-[6px] bg-black/22 px-2 py-1.5">
+          <div>选中</div>
+          <b className="mt-0.5 block text-[11px] text-[#e6f578]">{selectedCount}</b>
+        </div>
+        <div className="rounded-[6px] bg-black/22 px-2 py-1.5">
+          <div>包</div>
+          <b className="mt-0.5 block text-[11px] text-white/78">{packCount}</b>
+        </div>
+      </div>
+
+      {refs.length > 0 && (
+        <div className="mt-3">
+          <div className="mb-1.5 text-[9px] uppercase tracking-[0.14em] text-white/34">Reference</div>
+          <div className="grid grid-cols-4 gap-1.5">
+            {refs.slice(0, 4).map((ref, index) => (
+              <div key={`${ref.url}-${index}`} className="relative aspect-square overflow-hidden rounded-[6px] bg-white ring-1 ring-white/10">
+                <img src={ref.url} alt={ref.label} className="h-full w-full object-contain" />
+              </div>
+            ))}
+          </div>
+        </div>
+      )}
+
+      <div className="mt-3 flex items-center justify-between gap-2 text-[9px] text-white/36">
+        <span>{new Date(session.createdAt).toLocaleString('zh-CN', { month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit' })}</span>
+        <span className="font-mono">{session.id.slice(0, 10)}</span>
+      </div>
+    </div>
+  );
+}
+
 export default function Sidebar({
   open,
   onToggle,
@@ -109,6 +179,7 @@ export default function Sidebar({
                     </span>
                   </div>
                 </button>
+                {active && <ActiveSessionDetail session={s} />}
               </div>
             );
           })}