ddEventListener('click', e => {
        const dnsInfo = DNS_PROVIDERS[e.target.value];
        const $dnsID = document.getElementById("DnsID");
        // idLabel 为空时隐藏 DnsID
        if (dnsInfo.idLabel) {
          $dnsID.style.display = "block";
        } else {
          $dnsID.style.display = "none";
        }
        document.getElementById("dnsIdLabel").innerHTML = dnsInfo.idLabel;
        document.getElementById("dnsSecretLabel").innerHTML = dnsInfo.secretLabel;
        document.getElementB