fix(frontend): 余额充值弹窗 1:1 对齐 Zibll

- credits-wallet.php：弹窗重写为 Zibll refresh_modal 壳（.modal.flex.jc.fade > .modal-dialog.modal-mini.full-sm）+ zibpay_get_balance_charge_modal 同构内容（balance-charge-form / vip-product.product-box / payment-method-radio hollow-radio / but jb-red initiate-pay），档位与支付方式改为 data-for/data-value 选中模型
- credits.js：initBalanceCharge 改由 Bootstrap modal 运行时驱动（modal('show') + data-dismiss + hidden.bs.modal 中止轮询）；选中为程序赋值 hidden input，selectProduct/selectMethod 内显式 resetOperationKey 保证幂等键随选中内容刷新；提交契约不变
- credits.css：删除 uc-charge-* 全部死样式；新增 .balance-charge-form 作用域内 .zib-widget 基础卡与 .vip-product/.vip-tag 的 Zibll 原值回位（vip-modal.css 全局同名覆盖需在此回位）

验证：php -l 通过；toast-contract + card-pass-universal-redeem + card-pass-order-numbers 契约 26/26；uc-charge/balance_package/data-aksrt-charge-close/旧弹窗 id 引用清零

assets/js/credits.js

@@ -393,19 +393,63 @@
 		modal.dataset.aksrtChargeInitialized = '1';
 		var form = modal.querySelector('[data-aksrt-charge-form]');
 		var busy = false;
+		var jq = window.jQuery;
+
 		document.querySelectorAll('[data-aksrt-charge-open]').forEach(function (btn) {
-			btn.addEventListener('click', function () { openModal(modal); });
-		});
-		modal.querySelectorAll('[data-aksrt-charge-close]').forEach(function (btn) {
 			btn.addEventListener('click', function () {
-				closeModal(modal);
+				// Zibll 弹窗壳（.modal.fade）走 Bootstrap modal 运行时（zibll 的 refresh_modal 同源行为）。
+				if (jq && jq.fn && jq.fn.modal) {
+					jq(modal).modal('show');
+				} else {
+					modal.style.display = 'block';
+					modal.classList.add('in');
+				}
 			});
 		});
-		modal.querySelectorAll('.uc-charge-package input').forEach(function (inp) {
-			inp.addEventListener('change', function () {
-				modal.querySelectorAll('.uc-charge-package').forEach(function (el) {
-					el.classList.toggle('is-active', el.contains(inp) && inp.checked);
-				});
+		if (jq && jq.fn && jq.fn.modal) {
+			jq(modal).on('hidden.bs.modal', function () {
+				if (activePoll && typeof activePoll.abort === 'function') {
+					activePoll.abort();
+					notyf('已停止查询支付状态', 'warning', 3, 'aksrt-balance-charge-payment-toast');
+				}
+				activePoll = null;
+			});
+		}
+		// Zibll data-for/data-value 选中模型：余额档位（.vip-product.product-box）
+		// 选中变化不产生 change 事件（隐藏 input 由程序赋值），需显式重置幂等键。
+		function selectProduct(value) {
+			modal.querySelectorAll('[data-for="balance_product"]').forEach(function (el) {
+				el.classList.toggle('active', el.getAttribute('data-value') === value);
+			});
+			var hidden = modal.querySelector('input[name="balance_product"]');
+			if (hidden) hidden.value = value;
+			if (form) resetOperationKey(form);
+		}
+		modal.querySelectorAll('[data-for="balance_product"]').forEach(function (el) {
+			el.addEventListener('click', function () {
+				selectProduct(el.getAttribute('data-value'));
+			});
+		});
+		var customInput = modal.querySelector('input[name="custom_price"]');
+		if (customInput) {
+			customInput.addEventListener('input', function () {
+				if (String(customInput.value || '').trim() !== '') {
+					selectProduct('custom');
+				}
+			});
+		}
+		// 支付方式（.payment-method-radio）
+		function selectMethod(value) {
+			modal.querySelectorAll('[data-for="payment_method"]').forEach(function (el) {
+				el.classList.toggle('active', el.getAttribute('data-value') === value);
+			});
+			var hidden = modal.querySelector('input[name="payment_method"]');
+			if (hidden) hidden.value = value;
+			if (form) resetOperationKey(form);
+		}
+		modal.querySelectorAll('[data-for="payment_method"]').forEach(function (el) {
+			el.addEventListener('click', function () {
+				selectMethod(el.getAttribute('data-value'));
 			});
 		});
 		if (!form) return;
@@ -413,24 +457,25 @@
 		form.addEventListener('submit', function (e) {
 			e.preventDefault();
 			if (busy) return;
-			var pkgInput = form.querySelector('input[name="balance_package"]:checked') || form.querySelector('input[name="balance_package"]');
+			var pkgInput = form.querySelector('input[name="balance_product"]');
 			var pkg = pkgInput ? pkgInput.value : 'custom';
 			var customEl = form.querySelector('input[name="custom_price"]');
 			var custom = customEl ? String(customEl.value || '').trim() : '';
 			var validCustom = /^(0|[1-9]\d*)(?:\.\d{1,2})?$/.test(custom) && custom !== '0' && custom !== '0.0' && custom !== '0.00';
 			if (validCustom) {
 				pkg = 'custom';
+				selectProduct('custom');
 			}
-			if ((!pkg || pkg === 'custom') && !validCustom && !pkgInput) {
+			if ((!pkg || pkg === 'custom') && !validCustom) {
 				notyf('请选择或输入充值金额', 'danger');
 				return;
 			}
-			if (pkg === 'custom' && !validCustom) {
-				notyf('请输入有效充值金额', 'danger');
+			var methodEl = form.querySelector('input[name="payment_method"]');
+			var method = methodEl ? methodEl.value : '';
+			if (!method) {
+				notyf('暂无可用支付方式', 'danger');
 				return;
 			}
-			var methodEl = form.querySelector('input[name="payment_method"]:checked');
-			var method = methodEl ? methodEl.value : 'alipay';
 			busy = true;
 			notyf('正在创建充值订单…', 'load', '', 'aksrt-balance-charge-toast');
 			api('/pay/balance/charge', {