diff --git a/src/components/mcp/McpFormModal.tsx b/src/components/mcp/McpFormModal.tsx
index eb80282..81871f5 100644
--- a/src/components/mcp/McpFormModal.tsx
+++ b/src/components/mcp/McpFormModal.tsx
@@ -32,6 +32,7 @@ import {
   extractIdFromToml,
   mcpServerToToml,
 } from "@/utils/tomlUtils";
+import { normalizeTomlText } from "@/utils/textNormalization";
 import { useMcpValidation } from "./useMcpValidation";
 
 interface McpFormModalProps {
@@ -228,19 +229,21 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
   };
 
   const handleConfigChange = (value: string) => {
-    setFormConfig(value);
+    // 若为 TOML 模式，先做引号归一化，避免中文输入法导致的格式错误
+    const nextValue = useToml ? normalizeTomlText(value) : value;
+    setFormConfig(nextValue);
 
     if (useToml) {
       // TOML validation (use hook's complete validation)
-      const err = validateTomlConfig(value);
+      const err = validateTomlConfig(nextValue);
       if (err) {
         setConfigError(err);
         return;
       }
 
       // Try to extract ID (if user hasn't filled it yet)
-      if (value.trim() && !formId.trim()) {
-        const extractedId = extractIdFromToml(value);
+      if (nextValue.trim() && !formId.trim()) {
+        const extractedId = extractIdFromToml(nextValue);
         if (extractedId) {
           setFormId(extractedId);
         }
diff --git a/src/components/providers/forms/hooks/useCodexConfigState.ts b/src/components/providers/forms/hooks/useCodexConfigState.ts
index 056ddbb..5f2823e 100644
--- a/src/components/providers/forms/hooks/useCodexConfigState.ts
+++ b/src/components/providers/forms/hooks/useCodexConfigState.ts
@@ -3,6 +3,7 @@ import {
   extractCodexBaseUrl,
   setCodexBaseUrl as setCodexBaseUrlInConfig,
 } from "@/utils/providerConfigUtils";
+import { normalizeTomlText } from "@/utils/textNormalization";
 
 interface UseCodexConfigStateProps {
   initialData?: {
@@ -159,10 +160,12 @@ export function useCodexConfigState({ initialData }: UseCodexConfigStateProps) {
   // 处理 config 变化（同步 Base URL）
   const handleCodexConfigChange = useCallback(
     (value: string) => {
-      setCodexConfig(value);
+      // 归一化中文/全角/弯引号，避免 TOML 解析报错
+      const normalized = normalizeTomlText(value);
+      setCodexConfig(normalized);
 
       if (!isUpdatingCodexBaseUrlRef.current) {
-        const extracted = extractCodexBaseUrl(value) || "";
+        const extracted = extractCodexBaseUrl(normalized) || "";
         if (extracted !== codexBaseUrl) {
           setCodexBaseUrl(extracted);
         }
diff --git a/src/components/ui/textarea.tsx b/src/components/ui/textarea.tsx
index cb10801..e7041b1 100644
--- a/src/components/ui/textarea.tsx
+++ b/src/components/ui/textarea.tsx
@@ -11,6 +11,10 @@ const Textarea = React.forwardRef<HTMLTextAreaElement, TextareaProps>(
           "flex min-h-[80px] w-full rounded-md border border-border-default bg-background px-3 py-2 text-sm shadow-sm placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-blue-500/20 dark:focus:ring-blue-400/20 disabled:cursor-not-allowed disabled:opacity-50",
           className,
         )}
+        autoComplete="off"
+        autoCorrect="off"
+        autoCapitalize="none"
+        spellCheck={false}
         ref={ref}
         {...props}
       />
diff --git a/src/utils/providerConfigUtils.ts b/src/utils/providerConfigUtils.ts
index db22342..bf6d24b 100644
--- a/src/utils/providerConfigUtils.ts
+++ b/src/utils/providerConfigUtils.ts
@@ -1,6 +1,7 @@
 // 供应商配置处理工具函数
 
 import type { TemplateValueConfig } from "../config/claudeProviderPresets";
+import { normalizeQuotes } from "@/utils/textNormalization";
 
 const isPlainObject = (value: unknown): value is Record<string, any> => {
   return Object.prototype.toString.call(value) === "[object Object]";
@@ -357,7 +358,9 @@ export const extractCodexBaseUrl = (
   configText: string | undefined | null,
 ): string | undefined => {
   try {
-    const text = typeof configText === "string" ? configText : "";
+    const raw = typeof configText === "string" ? configText : "";
+    // 归一化中文/全角引号，避免正则提取失败
+    const text = normalizeQuotes(raw);
     if (!text) return undefined;
     const m = text.match(/base_url\s*=\s*(['"])([^'\"]+)\1/);
     return m && m[2] ? m[2] : undefined;
@@ -390,16 +393,20 @@ export const setCodexBaseUrl = (
   if (!trimmed) {
     return configText;
   }
+  // 归一化原文本中的引号（既能匹配，也能输出稳定格式）
+  const normalizedText = normalizeQuotes(configText);
 
   const normalizedUrl = trimmed.replace(/\s+/g, "").replace(/\/+$/, "");
   const replacementLine = `base_url = "${normalizedUrl}"`;
   const pattern = /base_url\s*=\s*(["'])([^"']+)\1/;
 
-  if (pattern.test(configText)) {
-    return configText.replace(pattern, replacementLine);
+  if (pattern.test(normalizedText)) {
+    return normalizedText.replace(pattern, replacementLine);
   }
 
   const prefix =
-    configText && !configText.endsWith("\n") ? `${configText}\n` : configText;
+    normalizedText && !normalizedText.endsWith("\n")
+      ? `${normalizedText}\n`
+      : normalizedText;
   return `${prefix}${replacementLine}\n`;
 };
diff --git a/src/utils/textNormalization.ts b/src/utils/textNormalization.ts
new file mode 100644
index 0000000..218338f
--- /dev/null
+++ b/src/utils/textNormalization.ts
@@ -0,0 +1,20 @@
+/**
+ * 将常见的中文/全角/弯引号统一为 ASCII 引号，以避免 TOML 解析失败。
+ * - 双引号：” “ „ ‟ ＂ → "
+ * - 单引号：’ ‘ ＇ → '
+ * 保守起见，不替换书名号/角引号（《》、「」等），避免误伤内容语义。
+ */
+export const normalizeQuotes = (text: string): string => {
+  if (!text) return text;
+  return text
+    // 双引号族 → "
+    .replace(/[“”„‟＂]/g, '"')
+    // 单引号族 → '
+    .replace(/[‘’＇]/g, "'");
+};
+
+/**
+ * 专用于 TOML 文本的归一化；目前等同于 normalizeQuotes，后续可扩展（如空白、行尾等）。
+ */
+export const normalizeTomlText = (text: string): string => normalizeQuotes(text);
+
diff --git a/src/utils/tomlUtils.ts b/src/utils/tomlUtils.ts
index 47a711b..90e87b5 100644
--- a/src/utils/tomlUtils.ts
+++ b/src/utils/tomlUtils.ts
@@ -1,4 +1,5 @@
 import { parse as parseToml, stringify as stringifyToml } from "smol-toml";
+import { normalizeTomlText } from "@/utils/textNormalization";
 import { McpServerSpec } from "../types";
 
 /**
@@ -9,7 +10,8 @@ import { McpServerSpec } from "../types";
 export const validateToml = (text: string): string => {
   if (!text.trim()) return "";
   try {
-    const parsed = parseToml(text);
+    const normalized = normalizeTomlText(text);
+    const parsed = parseToml(normalized);
     if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) {
       return "mustBeObject";
     }
@@ -52,7 +54,7 @@ export const tomlToMcpServer = (tomlText: string): McpServerSpec => {
     throw new Error("TOML 内容不能为空");
   }
 
-  const parsed = parseToml(tomlText);
+  const parsed = parseToml(normalizeTomlText(tomlText));
 
   // 情况 1: 直接是服务器配置（包含 type/command/url 等字段）
   if (
@@ -185,7 +187,7 @@ function normalizeServerConfig(config: any): McpServerSpec {
  */
 export const extractIdFromToml = (tomlText: string): string => {
   try {
-    const parsed = parseToml(tomlText);
+    const parsed = parseToml(normalizeTomlText(tomlText));
 
     // 尝试从 [mcp.servers.<id>] 或 [mcp_servers.<id>] 中提取 ID
     if (parsed.mcp && typeof parsed.mcp === "object") {