diff --git a/src/App.tsx b/src/App.tsx
index a31d3bf..2ef5b9f 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -161,11 +161,13 @@ export default function App() {
   const [expandedRegionCities, setExpandedRegionCities] = useState<Set<string>>(new Set());
   const [regionFilters, setRegionFilters] = useState({ region: '', city: '', customer: '' });
   const [isRegionFilterOpen, setIsRegionFilterOpen] = useState(false);
+  const [draftRegionFilters, setDraftRegionFilters] = useState({ region: '', city: '', customer: '' });
 
   // Customer section state
   const [expandedCustomers, setExpandedCustomers] = useState<Set<string>>(new Set());
   const [customerFilters, setCustomerFilters] = useState({ customer: '', brand: '', department: '', manager: '', region: '' });
   const [isCustomerFilterOpen, setIsCustomerFilterOpen] = useState(false);
+  const [draftCustomerFilters, setDraftCustomerFilters] = useState({ customer: '', brand: '', department: '', manager: '', region: '' });
 
   // Inventory statistics section state
   const [inventoryData, setInventoryData] = useState<RegionalInventoryStats[]>([]);
@@ -174,6 +176,7 @@ export default function App() {
   const [expandedInventoryTypes, setExpandedInventoryTypes] = useState<Set<string>>(new Set(['4.5T普货']));
   const [inventoryFilters, setInventoryFilters] = useState({ region: '', city: '', brand: '', type: '', model: '' });
   const [isInventoryFilterOpen, setIsInventoryFilterOpen] = useState(false);
+  const [draftInventoryFilters, setDraftInventoryFilters] = useState({ region: '', city: '', brand: '', type: '', model: '' });
 
   // Chart view states
   const [customerChartView, setCustomerChartView] = useState<'region' | 'city'>('region');
@@ -377,9 +380,10 @@ export default function App() {
     return types.sort((a, b) => INVENTORY_TYPE_ORDER_LIST.indexOf(a) - INVENTORY_TYPE_ORDER_LIST.indexOf(b));
   }, [inventoryData]);
   const uniqueInventoryModelsForType = useMemo(() => {
-    const source = inventoryFilters.type ? inventoryData.filter((s) => s.type === inventoryFilters.type) : inventoryData;
+    const typeFilter = isInventoryFilterOpen ? draftInventoryFilters.type : inventoryFilters.type;
+    const source = typeFilter ? inventoryData.filter((s) => s.type === typeFilter) : inventoryData;
     return Array.from(new Set(source.map((s) => s.model).filter(Boolean)));
-  }, [inventoryData, inventoryFilters.type]);
+  }, [inventoryData, inventoryFilters.type, draftInventoryFilters.type, isInventoryFilterOpen]);
 
   const inventoryByRegion = useMemo(() => {
     const result: Record<string, Record<string, RegionalInventoryStats[]>> = {};
@@ -1023,7 +1027,7 @@ export default function App() {
 
               <div className="relative">
                 <button
-                  onClick={() => setIsInventoryFilterOpen(!isInventoryFilterOpen)}
+                  onClick={() => { if (!isInventoryFilterOpen) setDraftInventoryFilters({...inventoryFilters}); setIsInventoryFilterOpen(!isInventoryFilterOpen); }}
                   className={`flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs font-bold transition-all ${
                     isInventoryFilterOpen || (inventoryFilters.region || inventoryFilters.city || inventoryFilters.brand || inventoryFilters.type || inventoryFilters.model)
                       ? 'bg-blue-600 text-white shadow-md'
@@ -1040,7 +1044,7 @@ export default function App() {
                 <AnimatePresence>
                   {isInventoryFilterOpen && (
                     <>
-                      <div className="fixed inset-0 z-40" onClick={() => setIsInventoryFilterOpen(false)} />
+                      <div className="fixed inset-0 z-40" />
                       <motion.div
                         initial={{ opacity: 0, y: 10, scale: 0.95 }}
                         animate={{ opacity: 1, y: 0, scale: 1 }}
@@ -1049,52 +1053,47 @@ export default function App() {
                       >
                         <div className="flex justify-between items-center mb-4">
                           <h3 className="text-xs font-bold text-slate-800">库存统计 - 数据筛选</h3>
-                          <button
-                            onClick={() => setInventoryFilters({ region: '', city: '', brand: '', type: '', model: '' })}
-                            className="text-[10px] text-blue-500 hover:underline"
-                          >
-                            重置所有
-                          </button>
+                          <button onClick={() => setDraftInventoryFilters({ region: '', city: '', brand: '', type: '', model: '' })} className="text-[10px] text-blue-500 hover:underline">重置所有</button>
                         </div>
 
                         <div className="space-y-3 text-left">
                           <div>
                             <label className="text-[10px] text-slate-400 block mb-1">区域</label>
-                            <select value={inventoryFilters.region} onChange={(e) => setInventoryFilters({...inventoryFilters, region: e.target.value})} className="w-full text-xs bg-white border border-slate-200 rounded-lg px-2 py-1.5 focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm cursor-pointer">
+                            <select value={draftInventoryFilters.region} onChange={(e) => setDraftInventoryFilters({...draftInventoryFilters, region: e.target.value})} className="w-full text-xs bg-white border border-slate-200 rounded-lg px-2 py-1.5 focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm cursor-pointer">
                               <option value="">全部区域</option>
                               {uniqueInventoryRegions.map(r => <option key={r} value={r}>{r}</option>)}
                             </select>
                           </div>
                           <div>
                             <label className="text-[10px] text-slate-400 block mb-1">城市</label>
-                            <select value={inventoryFilters.city} onChange={(e) => setInventoryFilters({...inventoryFilters, city: e.target.value})} className="w-full text-xs bg-white border border-slate-200 rounded-lg px-2 py-1.5 focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm cursor-pointer">
+                            <select value={draftInventoryFilters.city} onChange={(e) => setDraftInventoryFilters({...draftInventoryFilters, city: e.target.value})} className="w-full text-xs bg-white border border-slate-200 rounded-lg px-2 py-1.5 focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm cursor-pointer">
                               <option value="">全部城市</option>
                               {uniqueInventoryCities.map(c => <option key={c} value={c}>{c}</option>)}
                             </select>
                           </div>
                           <div>
                             <label className="text-[10px] text-slate-400 block mb-1">品牌</label>
-                            <select value={inventoryFilters.brand} onChange={(e) => setInventoryFilters({...inventoryFilters, brand: e.target.value})} className="w-full text-xs bg-white border border-slate-200 rounded-lg px-2 py-1.5 focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm cursor-pointer">
+                            <select value={draftInventoryFilters.brand} onChange={(e) => setDraftInventoryFilters({...draftInventoryFilters, brand: e.target.value})} className="w-full text-xs bg-white border border-slate-200 rounded-lg px-2 py-1.5 focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm cursor-pointer">
                               <option value="">全部品牌</option>
                               {uniqueInventoryBrands.map(b => <option key={b} value={b}>{b}</option>)}
                             </select>
                           </div>
                           <div>
                             <label className="text-[10px] text-slate-400 block mb-1">车型</label>
-                            <select value={inventoryFilters.type} onChange={(e) => setInventoryFilters({...inventoryFilters, type: e.target.value, model: ''})} className="w-full text-xs bg-white border border-slate-200 rounded-lg px-2 py-1.5 focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm cursor-pointer">
+                            <select value={draftInventoryFilters.type} onChange={(e) => setDraftInventoryFilters({...draftInventoryFilters, type: e.target.value, model: ''})} className="w-full text-xs bg-white border border-slate-200 rounded-lg px-2 py-1.5 focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm cursor-pointer">
                               <option value="">全部车型</option>
                               {uniqueInventoryTypes.map(t => <option key={t} value={t}>{t}</option>)}
                             </select>
                           </div>
                           <div>
                             <label className="text-[10px] text-slate-400 block mb-1">批次</label>
-                            <select value={inventoryFilters.model} onChange={(e) => setInventoryFilters({...inventoryFilters, model: e.target.value})} className="w-full text-xs bg-white border border-slate-200 rounded-lg px-2 py-1.5 focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm cursor-pointer">
+                            <select value={draftInventoryFilters.model} onChange={(e) => setDraftInventoryFilters({...draftInventoryFilters, model: e.target.value})} className="w-full text-xs bg-white border border-slate-200 rounded-lg px-2 py-1.5 focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm cursor-pointer">
                               <option value="">全部批次</option>
                               {uniqueInventoryModelsForType.map(m => <option key={m} value={m}>{m}</option>)}
                             </select>
                           </div>
                         </div>
-                        <button onClick={() => setIsInventoryFilterOpen(false)} className="w-full mt-4 py-2 bg-blue-600 text-white rounded-lg text-xs font-bold hover:bg-blue-700 transition-colors">确认</button>
+                        <button onClick={() => { setInventoryFilters({...draftInventoryFilters}); setIsInventoryFilterOpen(false); }} className="w-full mt-4 py-2 bg-blue-600 text-white rounded-lg text-xs font-bold hover:bg-blue-700 transition-colors">确认</button>
                       </motion.div>
                     </>
                   )}
@@ -1447,7 +1446,7 @@ export default function App() {
                       className="w-full pl-9 pr-8 py-1.5 bg-white border border-gray-200 rounded-lg text-xs focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500 transition-all shadow-sm appearance-none cursor-pointer font-bold text-gray-700"
                     >
                       <option value="All">所有业务负责人</option>
-                      {managersGroupedByDept.map(g => (
+                      {managersGroupedByDept.filter(g => g.department !== '公务车').map(g => (
                         <optgroup key={g.department} label={g.department}>
                           {g.managers.map(m => <option key={m} value={m}>{m}</option>)}
                         </optgroup>
@@ -1954,7 +1953,7 @@ export default function App() {
 
             <div className="flex items-center gap-2">
               <button 
-                onClick={() => setIsRegionFilterOpen(!isRegionFilterOpen)}
+                onClick={() => { if (!isRegionFilterOpen) setDraftRegionFilters({...regionFilters}); setIsRegionFilterOpen(!isRegionFilterOpen); }}
                 className={`flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs font-medium transition-all ${
                   isRegionFilterOpen || Object.values(regionFilters).some(v => v !== '')
                     ? 'bg-slate-200 text-slate-900 shadow-sm' 
@@ -1971,7 +1970,7 @@ export default function App() {
               <AnimatePresence>
                 {isRegionFilterOpen && (
                   <>
-                    <div className="fixed inset-0 z-40" onClick={() => setIsRegionFilterOpen(false)} />
+                    <div className="fixed inset-0 z-40" />
                     <motion.div 
                       initial={{ opacity: 0, y: 10, scale: 0.95 }}
                       animate={{ opacity: 1, y: 0, scale: 1 }}
@@ -1980,38 +1979,33 @@ export default function App() {
                     >
                       <div className="flex items-center justify-between mb-4">
                         <h3 className="text-sm font-bold text-gray-900">区域筛选</h3>
-                        <button
-                          onClick={() => setRegionFilters({ region: '', city: '', customer: '' })}
-                          className="text-[10px] text-slate-600 hover:text-slate-700 font-medium"
-                        >
-                          重置所有
-                        </button>
+                        <button onClick={() => setDraftRegionFilters({ region: '', city: '', customer: '' })} className="text-[10px] text-slate-600 hover:text-slate-700 font-medium">重置所有</button>
                       </div>
 
                       <div className="space-y-4">
                         <div className="space-y-1.5">
                           <label className="text-[10px] font-bold text-gray-400 uppercase tracking-wider">客户名称</label>
-                          <SearchSelect value={regionFilters.customer} onChange={(v) => setRegionFilters(prev => ({ ...prev, customer: v }))} options={uniqueCustomerNames} placeholder="所有客户" className="text-xs py-2 px-2" />
+                          <SearchSelect value={draftRegionFilters.customer} onChange={(v) => setDraftRegionFilters(prev => ({ ...prev, customer: v }))} options={uniqueCustomerNames} placeholder="所有客户" className="text-xs py-2 px-2" />
                         </div>
 
                         <div className="grid grid-cols-2 gap-3">
                           <div className="space-y-1.5">
                             <label className="text-[10px] font-bold text-gray-400 uppercase tracking-wider">区域</label>
-                            <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-slate-500/20 focus:border-slate-500 outline-none transition-all cursor-pointer shadow-sm" value={regionFilters.region} onChange={(e) => setRegionFilters(prev => ({ ...prev, region: e.target.value }))}>
+                            <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-slate-500/20 focus:border-slate-500 outline-none transition-all cursor-pointer shadow-sm" value={draftRegionFilters.region} onChange={(e) => setDraftRegionFilters(prev => ({ ...prev, region: e.target.value }))}>
                               <option value="">所有区域</option>
                               {uniqueRegions.map(r => <option key={r} value={r}>{r}</option>)}
                             </select>
                           </div>
                           <div className="space-y-1.5">
                             <label className="text-[10px] font-bold text-gray-400 uppercase tracking-wider">城市</label>
-                            <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-slate-500/20 focus:border-slate-500 outline-none transition-all cursor-pointer shadow-sm" value={regionFilters.city} onChange={(e) => setRegionFilters(prev => ({ ...prev, city: e.target.value }))}>
+                            <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-slate-500/20 focus:border-slate-500 outline-none transition-all cursor-pointer shadow-sm" value={draftRegionFilters.city} onChange={(e) => setDraftRegionFilters(prev => ({ ...prev, city: e.target.value }))}>
                               <option value="">所有城市</option>
                               {uniqueCities.map(c => <option key={c} value={c}>{c}</option>)}
                             </select>
                           </div>
                         </div>
                       </div>
-                      <button onClick={() => setIsRegionFilterOpen(false)} className="w-full mt-4 py-2 bg-slate-800 text-white rounded-lg text-xs font-bold hover:bg-slate-900 transition-colors">确认</button>
+                      <button onClick={() => { setRegionFilters({...draftRegionFilters}); setIsRegionFilterOpen(false); }} className="w-full mt-4 py-2 bg-slate-800 text-white rounded-lg text-xs font-bold hover:bg-slate-900 transition-colors">确认</button>
                     </motion.div>
                   </>
                 )}
@@ -2248,7 +2242,7 @@ export default function App() {
 
             <div className="flex items-center gap-2">
               <button 
-                onClick={() => setIsCustomerFilterOpen(!isCustomerFilterOpen)}
+                onClick={() => { if (!isCustomerFilterOpen) setDraftCustomerFilters({...customerFilters}); setIsCustomerFilterOpen(!isCustomerFilterOpen); }}
                 className={`flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs font-medium transition-all ${
                   isCustomerFilterOpen || Object.values(customerFilters).some(v => v !== '')
                     ? 'bg-emerald-400 text-emerald-900 shadow-lg shadow-emerald-900/20' 
@@ -2266,7 +2260,7 @@ export default function App() {
                 {isCustomerFilterOpen && (
                   <>
                     {/* Backdrop */}
-                    <div className="fixed inset-0 z-40" onClick={() => setIsCustomerFilterOpen(false)} />
+                    <div className="fixed inset-0 z-40" />
                     
                     {/* Popover Content */}
                     <motion.div
@@ -2278,26 +2272,21 @@ export default function App() {
                       <div className="flex items-center justify-between mb-4">
                         <h3 className="text-sm font-bold text-gray-900">数据筛选</h3>
                         <div className="flex items-center gap-2">
-                          <button
-                            onClick={() => setCustomerFilters({ customer: '', brand: '', department: '', manager: '', region: '' })}
-                            className="text-[10px] text-emerald-600 hover:text-emerald-700 font-medium"
-                          >
-                            重置所有
-                          </button>
+                          <button onClick={() => setDraftCustomerFilters({ customer: '', brand: '', department: '', manager: '', region: '' })} className="text-[10px] text-emerald-600 hover:text-emerald-700 font-medium">重置所有</button>
                         </div>
                       </div>
 
                       <div className="space-y-4">
                         <div className="space-y-1.5">
                           <label className="text-[10px] font-bold text-gray-400 uppercase tracking-wider">客户名称</label>
-                          <SearchSelect value={customerFilters.customer} onChange={(v) => setCustomerFilters(prev => ({ ...prev, customer: v }))} options={uniqueCustomerNames} placeholder="所有客户" className="text-xs py-2 px-2" />
+                          <SearchSelect value={draftCustomerFilters.customer} onChange={(v) => setDraftCustomerFilters(prev => ({ ...prev, customer: v }))} options={uniqueCustomerNames} placeholder="所有客户" className="text-xs py-2 px-2" />
                         </div>
 
                         <div className="space-y-1.5">
                           <label className="text-[10px] font-bold text-gray-400 uppercase tracking-wider">业务负责人</label>
-                          <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-emerald-500/20 focus:border-emerald-500 outline-none transition-all cursor-pointer shadow-sm" value={customerFilters.manager} onChange={(e) => setCustomerFilters(prev => ({ ...prev, manager: e.target.value }))}>
+                          <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-emerald-500/20 focus:border-emerald-500 outline-none transition-all cursor-pointer shadow-sm" value={draftCustomerFilters.manager} onChange={(e) => setDraftCustomerFilters(prev => ({ ...prev, manager: e.target.value }))}>
                             <option value="">所有负责人</option>
-                            {customerManagersGroupedByDept.map(g => (
+                            {customerManagersGroupedByDept.filter(g => g.department !== '公务车').map(g => (
                               <optgroup key={g.department} label={g.department}>
                                 {g.managers.map(m => <option key={m} value={m}>{m}</option>)}
                               </optgroup>
@@ -2308,28 +2297,28 @@ export default function App() {
                         <div className="grid grid-cols-2 gap-3">
                           <div className="space-y-1.5">
                             <label className="text-[10px] font-bold text-gray-400 uppercase tracking-wider">品牌</label>
-                            <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-emerald-500/20 focus:border-emerald-500 outline-none transition-all cursor-pointer shadow-sm" value={customerFilters.brand} onChange={(e) => setCustomerFilters(prev => ({ ...prev, brand: e.target.value }))}>
+                            <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-emerald-500/20 focus:border-emerald-500 outline-none transition-all cursor-pointer shadow-sm" value={draftCustomerFilters.brand} onChange={(e) => setDraftCustomerFilters(prev => ({ ...prev, brand: e.target.value }))}>
                               <option value="">所有品牌</option>
                               {uniqueBrands.map(b => <option key={b} value={b}>{b}</option>)}
                             </select>
                           </div>
                           <div className="space-y-1.5">
                             <label className="text-[10px] font-bold text-gray-400 uppercase tracking-wider">部门</label>
-                            <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-emerald-500/20 focus:border-emerald-500 outline-none transition-all cursor-pointer shadow-sm" value={customerFilters.department} onChange={(e) => setCustomerFilters(prev => ({ ...prev, department: e.target.value }))}>
+                            <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-emerald-500/20 focus:border-emerald-500 outline-none transition-all cursor-pointer shadow-sm" value={draftCustomerFilters.department} onChange={(e) => setDraftCustomerFilters(prev => ({ ...prev, department: e.target.value }))}>
                               <option value="">所有部门</option>
                               {uniqueDepts.map(d => <option key={d} value={d}>{d}</option>)}
                             </select>
                           </div>
                           <div className="space-y-1.5">
                             <label className="text-[10px] font-bold text-gray-400 uppercase tracking-wider">区域</label>
-                            <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-emerald-500/20 focus:border-emerald-500 outline-none transition-all cursor-pointer shadow-sm" value={customerFilters.region} onChange={(e) => setCustomerFilters(prev => ({ ...prev, region: e.target.value }))}>
+                            <select className="w-full bg-white border border-gray-200 rounded-lg py-2 px-2 text-xs focus:ring-2 focus:ring-emerald-500/20 focus:border-emerald-500 outline-none transition-all cursor-pointer shadow-sm" value={draftCustomerFilters.region} onChange={(e) => setDraftCustomerFilters(prev => ({ ...prev, region: e.target.value }))}>
                               <option value="">所有区域</option>
                               {uniqueRegions.map(r => <option key={r} value={r}>{r}</option>)}
                             </select>
                           </div>
                         </div>
                       </div>
-                      <button onClick={() => setIsCustomerFilterOpen(false)} className="w-full mt-4 py-2 bg-emerald-600 text-white rounded-lg text-xs font-bold hover:bg-emerald-700 transition-colors">确认</button>
+                      <button onClick={() => { setCustomerFilters({...draftCustomerFilters}); setIsCustomerFilterOpen(false); }} className="w-full mt-4 py-2 bg-emerald-600 text-white rounded-lg text-xs font-bold hover:bg-emerald-700 transition-colors">确认</button>
                     </motion.div>
                   </>
                 )}