diff --git a/src/components/Export/ExportDefaultsSettingsForm.scss b/src/components/Export/ExportDefaultsSettingsForm.scss
index 4dd6575..ccfa2bd 100644
--- a/src/components/Export/ExportDefaultsSettingsForm.scss
+++ b/src/components/Export/ExportDefaultsSettingsForm.scss
@@ -225,6 +225,37 @@
     color: var(--text-secondary);
   }
 
+  .concurrency-inline-options {
+    width: 100%;
+    display: grid;
+    grid-template-columns: repeat(6, minmax(0, 1fr));
+    gap: 6px;
+    margin-bottom: 10px;
+  }
+
+  .concurrency-option {
+    border: 1px solid var(--border-color);
+    border-radius: 10px;
+    min-height: 38px;
+    padding: 0;
+    background: var(--bg-primary);
+    color: var(--text-primary);
+    font-size: 14px;
+    font-weight: 600;
+    cursor: pointer;
+    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
+
+    &:hover {
+      border-color: var(--text-tertiary);
+    }
+
+    &.active {
+      border-color: var(--primary);
+      background: rgba(var(--primary-rgb), 0.08);
+      color: var(--primary);
+    }
+  }
+
   .switch {
     position: relative;
     display: inline-flex;
@@ -323,6 +354,11 @@
       margin-bottom: 0;
     }
 
+    .concurrency-inline-options {
+      max-width: 360px;
+      margin-bottom: 0;
+    }
+
     .format-grid {
       max-width: 360px;
       margin-bottom: 0;
@@ -344,6 +380,7 @@
     .select-field,
     .settings-time-range-field,
     .log-toggle-line,
+    .concurrency-inline-options,
     .format-grid {
       max-width: none;
     }
diff --git a/src/components/Export/ExportDefaultsSettingsForm.tsx b/src/components/Export/ExportDefaultsSettingsForm.tsx
index 2a13304..437a4fe 100644
--- a/src/components/Export/ExportDefaultsSettingsForm.tsx
+++ b/src/components/Export/ExportDefaultsSettingsForm.tsx
@@ -55,10 +55,8 @@ export function ExportDefaultsSettingsForm({
   layout = 'stacked'
 }: ExportDefaultsSettingsFormProps) {
   const [showExportExcelColumnsSelect, setShowExportExcelColumnsSelect] = useState(false)
-  const [showExportConcurrencySelect, setShowExportConcurrencySelect] = useState(false)
   const [isExportDateRangeDialogOpen, setIsExportDateRangeDialogOpen] = useState(false)
   const exportExcelColumnsDropdownRef = useRef<HTMLDivElement>(null)
-  const exportConcurrencyDropdownRef = useRef<HTMLDivElement>(null)
 
   const [exportDefaultFormat, setExportDefaultFormat] = useState('excel')
   const [exportDefaultDateRange, setExportDefaultDateRange] = useState<ExportDateRangeSelection>(() => createDefaultExportDateRangeSelection())
@@ -100,19 +98,15 @@ export function ExportDefaultsSettingsForm({
       if (showExportExcelColumnsSelect && exportExcelColumnsDropdownRef.current && !exportExcelColumnsDropdownRef.current.contains(target)) {
         setShowExportExcelColumnsSelect(false)
       }
-      if (showExportConcurrencySelect && exportConcurrencyDropdownRef.current && !exportConcurrencyDropdownRef.current.contains(target)) {
-        setShowExportConcurrencySelect(false)
-      }
     }
 
     document.addEventListener('mousedown', handleClickOutside)
     return () => document.removeEventListener('mousedown', handleClickOutside)
-  }, [showExportExcelColumnsSelect, showExportConcurrencySelect])
+  }, [showExportExcelColumnsSelect])
 
   const exportExcelColumnsValue = exportDefaultExcelCompactColumns ? 'compact' : 'full'
   const exportDateRangeLabel = useMemo(() => getExportDateRangeLabel(exportDefaultDateRange), [exportDefaultDateRange])
   const exportExcelColumnsLabel = useMemo(() => getOptionLabel(exportExcelColumnOptions, exportExcelColumnsValue), [exportExcelColumnsValue])
-  const exportConcurrencyLabel = String(exportDefaultConcurrency)
 
   const notify = (text: string, success = true) => {
     onNotify?.(text, success)
@@ -126,39 +120,23 @@ export function ExportDefaultsSettingsForm({
           <span className="form-hint">导出多个会话时的最大并发（1~6）</span>
         </div>
         <div className="form-control">
-          <div className="select-field" ref={exportConcurrencyDropdownRef}>
-            <button
-              type="button"
-              className={`select-trigger ${showExportConcurrencySelect ? 'open' : ''}`}
-              onClick={() => {
-                setShowExportConcurrencySelect(!showExportConcurrencySelect)
-                setIsExportDateRangeDialogOpen(false)
-                setShowExportExcelColumnsSelect(false)
-              }}
-            >
-              <span className="select-value">{exportConcurrencyLabel}</span>
-              <ChevronDown size={16} />
-            </button>
-            {showExportConcurrencySelect && (
-              <div className="select-dropdown">
-                {exportConcurrencyOptions.map((option) => (
-                  <button
-                    key={option}
-                    type="button"
-                    className={`select-option ${exportDefaultConcurrency === option ? 'active' : ''}`}
-                    onClick={async () => {
-                      setExportDefaultConcurrency(option)
-                      await configService.setExportDefaultConcurrency(option)
-                      onDefaultsChanged?.({ concurrency: option })
-                      notify(`已将导出并发数设为 ${option}`, true)
-                      setShowExportConcurrencySelect(false)
-                    }}
-                  >
-                    <span className="option-label">{option}</span>
-                  </button>
-                ))}
-              </div>
-            )}
+          <div className="concurrency-inline-options" role="radiogroup" aria-label="导出并发数">
+            {exportConcurrencyOptions.map((option) => (
+              <button
+                key={option}
+                type="button"
+                className={`concurrency-option ${exportDefaultConcurrency === option ? 'active' : ''}`}
+                aria-pressed={exportDefaultConcurrency === option}
+                onClick={async () => {
+                  setExportDefaultConcurrency(option)
+                  await configService.setExportDefaultConcurrency(option)
+                  onDefaultsChanged?.({ concurrency: option })
+                  notify(`已将导出并发数设为 ${option}`, true)
+                }}
+              >
+                {option}
+              </button>
+            ))}
           </div>
         </div>
       </div>
@@ -202,7 +180,6 @@ export function ExportDefaultsSettingsForm({
               className={`settings-time-range-trigger ${isExportDateRangeDialogOpen ? 'open' : ''}`}
               onClick={() => {
                 setShowExportExcelColumnsSelect(false)
-                setShowExportConcurrencySelect(false)
                 setIsExportDateRangeDialogOpen(true)
               }}
             >
@@ -267,7 +244,6 @@ export function ExportDefaultsSettingsForm({
               onClick={() => {
                 setShowExportExcelColumnsSelect(!showExportExcelColumnsSelect)
                 setIsExportDateRangeDialogOpen(false)
-                setShowExportConcurrencySelect(false)
               }}
             >
               <span className="select-value">{exportExcelColumnsLabel}</span>