feat(export): expand defaults format options

src/components/Export/ExportDefaultsSettingsForm.scss

@@ -112,6 +112,53 @@
     color: var(--text-tertiary);
   }
 
+  .format-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(156px, 1fr));
+    gap: 6px;
+    width: 100%;
+    margin-bottom: 10px;
+  }
+
+  .format-card {
+    width: 100%;
+    min-height: 0;
+    border: 1px solid var(--border-color);
+    border-radius: 10px;
+    padding: 8px 10px;
+    text-align: left;
+    background: var(--bg-primary);
+    cursor: pointer;
+    display: flex;
+    flex-direction: column;
+    align-items: flex-start;
+    justify-content: flex-start;
+    transition: border-color 0.2s ease, background 0.2s ease;
+
+    &:hover {
+      border-color: var(--text-tertiary);
+    }
+
+    &.active {
+      border-color: var(--primary);
+      background: rgba(var(--primary-rgb), 0.08);
+    }
+  }
+
+  .format-label {
+    font-size: 13px;
+    font-weight: 600;
+    color: var(--text-primary);
+    line-height: 1.35;
+  }
+
+  .format-desc {
+    margin-top: 1px;
+    font-size: 11px;
+    color: var(--text-tertiary);
+    line-height: 1.35;
+  }
+
   .select-option.active .option-desc {
     color: var(--primary);
   }
@@ -275,6 +322,11 @@
       max-width: 360px;
       margin-bottom: 0;
     }
+
+    .format-grid {
+      max-width: 360px;
+      margin-bottom: 0;
+    }
   }
 }
 
@@ -291,7 +343,8 @@
 
     .select-field,
     .settings-time-range-field,
-    .log-toggle-line {
+    .log-toggle-line,
+    .format-grid {
       max-width: none;
     }
   }

src/components/Export/ExportDefaultsSettingsForm.tsx

@@ -54,11 +54,9 @@ export function ExportDefaultsSettingsForm({
   onDefaultsChanged,
   layout = 'stacked'
 }: ExportDefaultsSettingsFormProps) {
-  const [showExportFormatSelect, setShowExportFormatSelect] = useState(false)
   const [showExportExcelColumnsSelect, setShowExportExcelColumnsSelect] = useState(false)
   const [showExportConcurrencySelect, setShowExportConcurrencySelect] = useState(false)
   const [isExportDateRangeDialogOpen, setIsExportDateRangeDialogOpen] = useState(false)
-  const exportFormatDropdownRef = useRef<HTMLDivElement>(null)
   const exportExcelColumnsDropdownRef = useRef<HTMLDivElement>(null)
   const exportConcurrencyDropdownRef = useRef<HTMLDivElement>(null)
 
@@ -99,9 +97,6 @@ export function ExportDefaultsSettingsForm({
   useEffect(() => {
     const handleClickOutside = (e: MouseEvent) => {
       const target = e.target as Node
-      if (showExportFormatSelect && exportFormatDropdownRef.current && !exportFormatDropdownRef.current.contains(target)) {
-        setShowExportFormatSelect(false)
-      }
       if (showExportExcelColumnsSelect && exportExcelColumnsDropdownRef.current && !exportExcelColumnsDropdownRef.current.contains(target)) {
         setShowExportExcelColumnsSelect(false)
       }
@@ -112,10 +107,9 @@ export function ExportDefaultsSettingsForm({
 
     document.addEventListener('mousedown', handleClickOutside)
     return () => document.removeEventListener('mousedown', handleClickOutside)
-  }, [showExportFormatSelect, showExportExcelColumnsSelect, showExportConcurrencySelect])
+  }, [showExportExcelColumnsSelect, showExportConcurrencySelect])
 
   const exportExcelColumnsValue = exportDefaultExcelCompactColumns ? 'compact' : 'full'
-  const exportFormatLabel = useMemo(() => getOptionLabel(exportFormatOptions, exportDefaultFormat), [exportDefaultFormat])
   const exportDateRangeLabel = useMemo(() => getExportDateRangeLabel(exportDefaultDateRange), [exportDefaultDateRange])
   const exportExcelColumnsLabel = useMemo(() => getOptionLabel(exportExcelColumnOptions, exportExcelColumnsValue), [exportExcelColumnsValue])
   const exportConcurrencyLabel = String(exportDefaultConcurrency)
@@ -138,7 +132,6 @@ export function ExportDefaultsSettingsForm({
               className={`select-trigger ${showExportConcurrencySelect ? 'open' : ''}`}
               onClick={() => {
                 setShowExportConcurrencySelect(!showExportConcurrencySelect)
-                setShowExportFormatSelect(false)
                 setIsExportDateRangeDialogOpen(false)
                 setShowExportExcelColumnsSelect(false)
               }}
@@ -172,46 +165,28 @@ export function ExportDefaultsSettingsForm({
 
       <div className="form-group">
         <div className="form-copy">
-          <label>默认导出格式</label>
+          <label>聊天消息默认导出格式</label>
           <span className="form-hint">导出页面默认选中的格式</span>
         </div>
         <div className="form-control">
-          <div className="select-field" ref={exportFormatDropdownRef}>
+          <div className="format-grid">
-            <button
-              type="button"
-              className={`select-trigger ${showExportFormatSelect ? 'open' : ''}`}
-              onClick={() => {
-                setShowExportFormatSelect(!showExportFormatSelect)
-                setIsExportDateRangeDialogOpen(false)
-                setShowExportExcelColumnsSelect(false)
-                setShowExportConcurrencySelect(false)
-              }}
-            >
-              <span className="select-value">{exportFormatLabel}</span>
-              <ChevronDown size={16} />
-            </button>
-            {showExportFormatSelect && (
-              <div className="select-dropdown">
             {exportFormatOptions.map((option) => (
               <button
                 key={option.value}
                 type="button"
-                    className={`select-option ${exportDefaultFormat === option.value ? 'active' : ''}`}
+                className={`format-card ${exportDefaultFormat === option.value ? 'active' : ''}`}
                 onClick={async () => {
                   setExportDefaultFormat(option.value)
                   await configService.setExportDefaultFormat(option.value)
                   onDefaultsChanged?.({ format: option.value })
                   notify('已更新导出格式默认值', true)
-                      setShowExportFormatSelect(false)
                 }}
               >
-                    <span className="option-label">{option.label}</span>
+                <span className="format-label">{option.label}</span>
-                    <span className="option-desc">{option.desc}</span>
+                <span className="format-desc">{option.desc}</span>
               </button>
             ))}
           </div>
-            )}
-          </div>
         </div>
       </div>
 
@@ -226,7 +201,6 @@ export function ExportDefaultsSettingsForm({
               type="button"
               className={`settings-time-range-trigger ${isExportDateRangeDialogOpen ? 'open' : ''}`}
               onClick={() => {
-                setShowExportFormatSelect(false)
                 setShowExportExcelColumnsSelect(false)
                 setShowExportConcurrencySelect(false)
                 setIsExportDateRangeDialogOpen(true)
@@ -292,7 +266,6 @@ export function ExportDefaultsSettingsForm({
               className={`select-trigger ${showExportExcelColumnsSelect ? 'open' : ''}`}
               onClick={() => {
                 setShowExportExcelColumnsSelect(!showExportExcelColumnsSelect)
-                setShowExportFormatSelect(false)
                 setIsExportDateRangeDialogOpen(false)
                 setShowExportConcurrencySelect(false)
               }}