C#中运用wkhtmltopdf插件导出PDF中的目录样式问题

运用wkhtmltopdf导出pdf,导是可以导出来,目录显示出来了,但是现在的问题是不知道如何设置目录的样式,求教。代码如下:

                string output = "";
            string Lan = "CN";

            string str = HttpContext.Current.Server.MapPath("../../wkhtml2pdf/wkhtmltopdf.exe");
            string url = "http://localhost:32133/web/lawyer/tlawer/indexCV.aspx?Lan=" + Lan + "&l_id=" + curEmpID + "&D=" + new Random().NextDouble();
            string _curpath = "../../wkhtml2pdf/" + Lan + "/" + curEmpID + ".pdf";
            string path = HttpContext.Current.Server.MapPath(_curpath);
            string switches = "  --header-right \"" + dt_FILED2 .Rows[0][0].ToString()+ "\"  --header-line  --header-spacing 10 --margin-top 20   --footer-center [page]  --toc --outline --outline-depth 4  --toc-header-text 目录  ";
            Process p = new Process();
            Boolean result = false;
            ProcessStartInfo psi = new ProcessStartInfo(str, String.Format(" {0} {1} {2}", switches, url, path));
            p.StartInfo.FileName = str;
            p.StartInfo = psi;
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.CreateNoWindow = true;
            p.Start();
            p.WaitForExit();
            result = true;

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