我正在尝试匹配日语字符的Unicode范围，但它抛出了一个PatternSyntaxException

import java.util.regex.*;

public class Main {
    public static void main(String[] args) {
        String input = "日本語";
        String pattern = "[\\u3040-\\u309F\\u30A0-\\u30FF]+";

        try {
            Pattern regex = Pattern.compile(pattern);
            Matcher matcher = regex.matcher(input);

            if (matcher.find()) {
                System.out.println("匹配成功");
            } else {
                System.out.println("未找到匹配");
            }
        } catch (PatternSyntaxException e) {
            System.out.println("正则表达式语法错误：" + e.getMessage());
        }
    }
}