diff --git a/src/main/java/com/org/flashsalesystem/service/ProductService.java b/src/main/java/com/org/flashsalesystem/service/ProductService.java
index 8af1ed0..a772e95 100644
--- a/src/main/java/com/org/flashsalesystem/service/ProductService.java
+++ b/src/main/java/com/org/flashsalesystem/service/ProductService.java
@@ -261,7 +261,22 @@ public class ProductService {
                 productRepository.increaseStock(productId, quantity);
             } else if ("decrease".equals(operation)) {
                 // 减少库存
-                Long currentStock = (Long) redisService.get(stockKey);
+                Object stockObj = redisService.get(stockKey);
+                Long currentStock = null;
+                if (stockObj != null) {
+                    if (stockObj instanceof Integer) {
+                        currentStock = ((Integer) stockObj).longValue();
+                    } else if (stockObj instanceof Long) {
+                        currentStock = (Long) stockObj;
+                    } else if (stockObj instanceof String) {
+                        try {
+                            currentStock = Long.parseLong((String) stockObj);
+                        } catch (NumberFormatException e) {
+                            log.error("库存数据格式错误: 商品ID={}, 数据={}", productId, stockObj);
+                            return false;
+                        }
+                    }
+                }
                 if (currentStock == null || currentStock < quantity) {
                     log.warn("库存不足: 商品ID={}, 当前库存={}, 需要扣减={}", productId, currentStock, quantity);
                     return false;
diff --git a/src/main/webapp/WEB-INF/views/cart.jsp b/src/main/webapp/WEB-INF/views/cart.jsp
index f6623e8..3d0cb02 100644
--- a/src/main/webapp/WEB-INF/views/cart.jsp
+++ b/src/main/webapp/WEB-INF/views/cart.jsp
@@ -419,13 +419,60 @@
             productIds.push(parseInt($(this).val()));
         });
 
-        // 跳转到结算页面
-        const form = $('<form method="post" action="${pageContext.request.contextPath}/checkout">');
-        productIds.forEach(function (productId) {
-            form.append('<input type="hidden" name="productIds" value="' + productId + '">');
+        // 显示确认对话框
+        if (!confirm('确定要结算选中的 ' + selectedItems.length + ' 个商品吗？\n\n结算后将生成订单，请及时支付。')) {
+            return;
+        }
+
+        // 禁用结算按钮防止重复点击
+        const checkoutBtn = $('#checkoutBtn');
+        const originalText = checkoutBtn.html();
+        checkoutBtn.prop('disabled', true).html('<i class="fas fa-spinner fa-spin"></i> 结算中...');
+
+        // 通过AJAX调用购物车结算接口
+        $.ajax({
+            url: '${pageContext.request.contextPath}/api/cart/checkout',
+            type: 'POST',
+            contentType: 'application/json',
+            data: JSON.stringify({
+                productIds: productIds
+            }),
+            success: function (response) {
+                if (response.success) {
+                    showMessage('✅ 订单生成成功！订单号：' + response.data.orderNo, 'success');
+
+                    // 清空购物车显示
+                    loadCart();
+
+                    // 3秒后跳转到订单详情页面
+                    setTimeout(() => {
+                        window.location.href = '${pageContext.request.contextPath}/order/' + response.data.id;
+                    }, 2000);
+                } else {
+                    showMessage('❌ 下单失败：' + response.message, 'error');
+
+                    // 恢复按钮状态
+                    checkoutBtn.prop('disabled', false).html(originalText);
+                }
+            },
+            error: function (xhr, status, error) {
+                let errorMessage = '网络异常，请重试';
+
+                if (xhr.status === 401) {
+                    errorMessage = '登录已过期，请重新登录';
+                    setTimeout(() => {
+                        window.location.href = '${pageContext.request.contextPath}/login?returnUrl=' + encodeURIComponent(window.location.pathname);
+                    }, 1500);
+                } else if (xhr.status === 400 && xhr.responseJSON) {
+                    errorMessage = xhr.responseJSON.message || '请求参数错误';
+                }
+
+                showMessage('❌ 结算失败：' + errorMessage, 'error');
+
+                // 恢复按钮状态
+                checkoutBtn.prop('disabled', false).html(originalText);
+            }
         });
-        $('body').append(form);
-        form.submit();
     }
 
     // 加载推荐商品
diff --git a/src/main/webapp/WEB-INF/views/products.jsp b/src/main/webapp/WEB-INF/views/products.jsp
index 6133448..120cc14 100644
--- a/src/main/webapp/WEB-INF/views/products.jsp
+++ b/src/main/webapp/WEB-INF/views/products.jsp
@@ -29,12 +29,6 @@
         font-size: 1.2rem;
     }
 
-    .original-price {
-        color: #999;
-        text-decoration: line-through;
-        font-size: 0.9rem;
-    }
-
     .stock-badge {
         position: absolute;
         top: 10px;
@@ -58,6 +52,20 @@
         text-align: center;
         padding: 40px;
     }
+
+    .btn:hover {
+        transform: translateY(-1px);
+    }
+
+    /* 卡片悬停效果 */
+    .card:hover .card-img-top {
+        transform: scale(1.05);
+        transition: transform 0.3s ease;
+    }
+
+    .card-img-top {
+        transition: transform 0.3s ease;
+    }
 </style>
 
 <div class="container my-4">
@@ -96,7 +104,6 @@
                     <option value="id,desc">最新上架</option>
                     <option value="price,asc">价格从低到高</option>
                     <option value="price,desc">价格从高到低</option>
-                    <option value="sales,desc">销量最高</option>
                 </select>
             </div>
             <div class="col-md-2">
@@ -172,6 +179,11 @@
                 searchProducts();
             }
         });
+
+        // 更新购物车数量（如果用户已登录）
+        <c:if test="${not empty sessionScope.user}">
+        updateCartCount();
+        </c:if>
     });
 
     // 加载商品列表
@@ -195,7 +207,7 @@
             params.append('sortDirection', sortValue[1]);
         }
 
-        $.get('/api/product/list?' + params.toString())
+        $.get('${pageContext.request.contextPath}/api/product/list?' + params.toString())
             .done(function (response) {
                 if (response.success) {
                     displayProducts(response.data.content);
@@ -235,54 +247,46 @@
         });
     }
 
-    // 创建商品卡片
+    // 创建商品卡片（参考热门商品样式）
     function createProductCard(product) {
-        const stockBadge = product.stock > 0 ?
-            `<span class="stock-badge bg-success">库存 ${product.stock}</span>` :
-            `<span class="stock-badge bg-danger">无库存</span>`;
+        const imageUrl = product.imageUrl || '${pageContext.request.contextPath}/images/default-product.svg';
+        const productName = product.name;
+        const productDescription = product.description || '暂无描述';
+        const price = product.price ? product.price.toFixed(2) : '0.00';
+        const stock = product.stock || 0;
 
-        const originalPrice = product.originalPrice && product.originalPrice > product.price ?
-            `<span class="original-price">¥${product.originalPrice}</span>` : '';
+        var cardHtml = '<div class="col-lg-3 col-md-4 col-sm-6 mb-4">' +
+            '<div class="card product-card h-100">' +
+            '<div class="position-relative">' +
+            '<img src="' + imageUrl + '" class="card-img-top product-image" alt="' + productName + '" ' +
+            'onerror="this.src=\'${pageContext.request.contextPath}/images/default-product.svg\'; this.onerror=null;">' +
+            '<span class="stock-badge ' + (stock > 0 ? 'bg-success' : 'bg-danger') + '">' +
+            (stock > 0 ? '库存 ' + stock : '无库存') +
+            '</span>' +
+            '</div>' +
+            '<div class="card-body d-flex flex-column">' +
+            '<h6 class="card-title text-truncate" title="' + productName + '">' + productName + '</h6>' +
+            '<p class="card-text text-muted small flex-grow-1 text-truncate" title="' + productDescription + '">' +
+            productDescription +
+            '</p>' +
+            '<div class="d-flex justify-content-between align-items-center mb-2">' +
+            '<span class="text-primary fw-bold">¥' + price + '</span>' +
+            '<small class="text-muted">库存: ' + stock + '</small>' +
+            '</div>' +
+            '<div class="d-flex gap-2">' +
+            (stock > 0 ?
+                    '<button class="btn btn-primary btn-sm flex-grow-1" onclick="addToCart(' + product.id + ')"><i class="fas fa-cart-plus"></i> 加入购物车</button>' :
+                    '<button class="btn btn-secondary btn-sm flex-grow-1" disabled><i class="fas fa-ban"></i> 暂时缺货</button>'
+            ) +
+            '<button class="btn btn-outline-secondary btn-sm" onclick="viewProductDetail(' + product.id + ')" title="查看详情">' +
+            '<i class="fas fa-eye"></i>' +
+            '</button>' +
+            '</div>' +
+            '</div>' +
+            '</div>' +
+            '</div>';
 
-        const addToCartBtn = product.stock > 0 ?
-            `<button class="btn btn-primary btn-sm" onclick="addToCart(${product.id})">
-            <i class="fas fa-cart-plus"></i> 加入购物车
-        </button>` :
-            `<button class="btn btn-secondary btn-sm" disabled>
-            <i class="fas fa-ban"></i> 暂时缺货
-        </button>`;
-
-        return `
-        <div class="col-lg-3 col-md-4 col-sm-6 mb-4">
-            <div class="card product-card h-100">
-                <div class="position-relative">
-                    <img src="${product.imageUrl || '/static/images/default-product.svg'}" 
-                         class="card-img-top product-image" alt="${product.name}">
-                    ${stockBadge}
-                </div>
-                <div class="card-body d-flex flex-column">
-                    <h6 class="card-title" title="${product.name}">
-                        ${product.name.length > 30 ? product.name.substring(0, 30) + '...' : product.name}
-                    </h6>
-                    <p class="card-text text-muted small flex-grow-1">
-                        ${product.description ? 
-                          (product.description.length > 50 ? product.description.substring(0, 50) + '...' : product.description) : 
-                          '暂无描述'}
-                    </p>
-                    <div class="price-section mb-2">
-                        <span class="price">¥${product.price}</span>
-                        ${originalPrice}
-                    </div>
-                    <div class="d-flex justify-content-between align-items-center">
-                        ${addToCartBtn}
-                        <button class="btn btn-outline-secondary btn-sm" onclick="viewProductDetail(${product.id})">
-                            <i class="fas fa-eye"></i> 详情
-                        </button>
-                    </div>
-                </div>
-            </div>
-        </div>
-    `;
+        return cardHtml;
     }
 
     // 更新分页
@@ -296,36 +300,36 @@
         // 上一页
         const prevDisabled = currentPage === 0 ? 'disabled' : '';
         pagination.append(`
-        <li class="page-item ${prevDisabled}">
-            <a class="page-link" onclick="loadProducts(${currentPage - 1})" href="javascript:void(0)">
-                <i class="fas fa-chevron-left"></i>
-            </a>
-        </li>
-    `);
+            <li class="page-item ${prevDisabled}">
+                <a class="page-link" onclick="loadProducts(${currentPage - 1})" href="javascript:void(0)">
+                    <i class="fas fa-chevron-left"></i>
+                </a>
+            </li>
+        `);
 
         // 页码
         let startPage = Math.max(0, currentPage - 2);
         let endPage = Math.min(totalPages - 1, currentPage + 2);
 
         if (startPage > 0) {
-            pagination.append(`<li class="page-item"><a class="page-link" onclick="loadProducts(0)" href="javascript:void(0)">1</a></li>`);
+            pagination.append('<li class="page-item"><a class="page-link" onclick="loadProducts(0)" href="javascript:void(0)">1</a></li>');
             if (startPage > 1) {
-                pagination.append(`<li class="page-item disabled"><span class="page-link">...</span></li>`);
+                pagination.append('<li class="page-item disabled"><span class="page-link">...</span></li>');
             }
         }
 
         for (let i = startPage; i <= endPage; i++) {
             const active = i === currentPage ? 'active' : '';
             pagination.append(`
-            <li class="page-item ${active}">
-                <a class="page-link" onclick="loadProducts(${i})" href="javascript:void(0)">${i + 1}</a>
-            </li>
-        `);
+                <li class="page-item ${active}">
+                    <a class="page-link" onclick="loadProducts(${i})" href="javascript:void(0)">${i + 1}</a>
+                </li>
+            `);
         }
 
         if (endPage < totalPages - 1) {
             if (endPage < totalPages - 2) {
-                pagination.append(`<li class="page-item disabled"><span class="page-link">...</span></li>`);
+                pagination.append('<li class="page-item disabled"><span class="page-link">...</span></li>');
             }
             pagination.append(`<li class="page-item"><a class="page-link" onclick="loadProducts(${totalPages - 1})" href="javascript:void(0)">${totalPages}</a></li>`);
         }
@@ -333,19 +337,19 @@
         // 下一页
         const nextDisabled = currentPage === totalPages - 1 ? 'disabled' : '';
         pagination.append(`
-        <li class="page-item ${nextDisabled}">
-            <a class="page-link" onclick="loadProducts(${currentPage + 1})" href="javascript:void(0)">
-                <i class="fas fa-chevron-right"></i>
-            </a>
-        </li>
-    `);
+            <li class="page-item ${nextDisabled}">
+                <a class="page-link" onclick="loadProducts(${currentPage + 1})" href="javascript:void(0)">
+                    <i class="fas fa-chevron-right"></i>
+                </a>
+            </li>
+        `);
     }
 
     // 查看商品详情
     function viewProductDetail(productId) {
         currentProductId = productId;
 
-        $.get(`/api/product/${productId}`)
+        $.get('${pageContext.request.contextPath}/api/product/' + productId)
             .done(function (response) {
                 if (response.success) {
                     displayProductDetail(response.data);
@@ -362,91 +366,80 @@
     // 显示商品详情
     function displayProductDetail(product) {
         const modalBody = $('#productModalBody');
-        modalBody.html(`
-        <div class="row">
-            <div class="col-md-6">
-                <img src="${product.imageUrl || '/static/images/default-product.svg'}" 
-                     class="img-fluid rounded" alt="${product.name}">
-            </div>
-            <div class="col-md-6">
-                <h4>${product.name}</h4>
-                <p class="text-muted">${product.description || '暂无详细描述'}</p>
-                <div class="mb-3">
-                    <span class="price h4">¥${product.price}</span>
-                    ${product.originalPrice && product.originalPrice > product.price ? 
-                      '<span class="original-price ms-2">¥' + product.originalPrice + '</span>' : ''}
-                </div>
-                <div class="mb-3">
-                    <span class="badge ${product.stock > 0 ? 'bg-success' : 'bg-danger'}">
-                        <c:choose>
-                            <c:when test="${product.stock > 0}">
-                                库存 ${product.stock}
-                            </c:when>
-                            <c:otherwise>
-                                暂时缺货
-                            </c:otherwise>
-                        </c:choose>
-                    </span>
-                </div>
-                <div class="mb-3">
-                    <strong>商品类别：</strong> ${product.category || '未分类'}
-                </div>
-                <div class="mb-3">
-                    <strong>商品状态：</strong> 
-                        <span class="badge">
-                            <c:choose>
-                                <c:when test="${product.status == 1}">
-                                    <span class="bg-success">上架中</span>
-                                </c:when>
-                                <c:otherwise>
-                                    <span class="bg-secondary">已下架</span>
-                                </c:otherwise>
-                            </c:choose>
-                        </span>
-                </div>
-            </div>
-        </div>
-    `);
+        const imageUrl = product.imageUrl || '${pageContext.request.contextPath}/images/default-product.svg';
+        const stock = product.stock || 0;
+        const price = product.price ? product.price.toFixed(2) : '0.00';
+
+        var modalHtml = '<div class="row">' +
+            '<div class="col-md-6">' +
+            '<img src="' + imageUrl + '" class="img-fluid rounded" alt="' + product.name + '" ' +
+            'onerror="this.src=\'${pageContext.request.contextPath}/images/default-product.svg\'; this.onerror=null;">' +
+            '</div>' +
+            '<div class="col-md-6">' +
+            '<h4>' + product.name + '</h4>' +
+            '<p class="text-muted">' + (product.description || '暂无详细描述') + '</p>' +
+            '<div class="mb-3">' +
+            '<span class="text-primary fw-bold h4">¥' + price + '</span>' +
+            '</div>' +
+            '<div class="mb-3">' +
+            '<span class="badge ' + (stock > 0 ? 'bg-success' : 'bg-danger') + '">' +
+            (stock > 0 ? '库存 ' + stock : '暂时缺货') +
+            '</span>' +
+            '</div>' +
+            '<div class="mb-3">' +
+            '<strong>商品状态：</strong> ' +
+            '<span class="badge ' + (product.status === 1 ? 'bg-success' : 'bg-secondary') + '">' +
+            (product.status === 1 ? '上架中' : '已下架') +
+            '</span>' +
+            '</div>' +
+            '</div>' +
+            '</div>';
+
+        modalBody.html(modalHtml);
 
         // 更新加入购物车按钮状态
         const addToCartBtn = $('#addToCartBtn');
-        if (product.stock > 0 && product.status === 1) {
+        if (stock > 0 && product.status === 1) {
             addToCartBtn.prop('disabled', false).html('<i class="fas fa-cart-plus"></i> 加入购物车');
         } else {
             addToCartBtn.prop('disabled', true).html('<i class="fas fa-ban"></i> 暂时无法购买');
         }
     }
 
-    // 添加到购物车
+    // 添加到购物车（参考首页实现）
     function addToCart(productId) {
-        if (!isUserLoggedIn()) {
-            showLoginPrompt();
-            return;
-        }
-
-        const data = {
-            productId: productId,
-            quantity: 1
-        };
-
+        <c:choose>
+        <c:when test="${not empty sessionScope.user}">
         $.ajax({
-            url: '/api/cart/add',
-            method: 'POST',
+            url: '${pageContext.request.contextPath}/api/cart/add',
+            type: 'POST',
             contentType: 'application/json',
-            data: JSON.stringify(data)
-        })
-            .done(function (response) {
+            data: JSON.stringify({
+                productId: productId,
+                quantity: 1
+            }),
+            success: function (response) {
                 if (response.success) {
-                    showSuccess('商品已添加到购物车');
+                    showMessage('商品已添加到购物车', 'success');
                     updateCartCount();
+                    // 如果是从模态框添加的，关闭模态框
                     $('#productModal').modal('hide');
                 } else {
-                    showError('添加失败：' + response.message);
+                    showMessage(response.message, 'error');
                 }
-            })
-            .fail(function () {
-                showError('网络错误，请稍后重试');
-            });
+            },
+            error: function () {
+                showMessage('添加失败，请重试', 'error');
+            }
+        });
+        </c:when>
+        <c:otherwise>
+        showMessage('请先登录', 'warning');
+        setTimeout(() => {
+            window.location.href = '${pageContext.request.contextPath}/login?returnUrl=' + encodeURIComponent(window.location.pathname);
+        }, 1500);
+        </c:otherwise>
+        </c:choose>
     }
 
     // 显示加载状态
@@ -461,40 +454,51 @@
         }
     }
 
-    // 检查用户是否登录
-    function isUserLoggedIn() {
-        // 这里需要根据实际的登录状态检查逻辑来实现
-        return sessionStorage.getItem('userToken') ||
-            document.cookie.includes('JSESSIONID');
+    // 显示消息（参考首页实现）
+    function showMessage(message, type = 'info') {
+        // 创建消息元素
+        const alertDiv = document.createElement('div');
+        alertDiv.className = `alert alert-${type == 'error' ? 'danger' : type} alert-dismissible fade show position-fixed`;
+        alertDiv.style.cssText = 'top: 20px; right: 20px; z-index: 9999; min-width: 300px;';
+
+        alertDiv.innerHTML = `
+            ${message}
+            <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+        `;
+
+        document.body.appendChild(alertDiv);
+
+        // 3秒后自动消失
+        setTimeout(() => {
+            if (alertDiv.parentNode) {
+                alertDiv.remove();
+            }
+        }, 3000);
     }
 
-    // 显示登录提示
-    function showLoginPrompt() {
-        if (confirm('请先登录后再进行购物，是否前往登录页面？')) {
-            window.location.href = '/login?returnUrl=' + encodeURIComponent(window.location.pathname);
-        }
-    }
-
-    // 更新购物车数量
+    // 更新购物车数量（参考首页实现）
     function updateCartCount() {
-        if (!isUserLoggedIn()) return;
-
-        $.get('/api/cart/count')
+        $.get('${pageContext.request.contextPath}/api/cart/count')
             .done(function (response) {
-                if (response.success && response.data.count > 0) {
-                    $('.cart-count').text(response.data.count).show();
+                if (response.success) {
+                    const cartBadge = document.querySelector('.cart-count');
+                    if (cartBadge) {
+                        const count = response.data.count || 0;
+                        cartBadge.textContent = count;
+                        cartBadge.style.display = count > 0 ? 'inline' : 'none';
+                    }
                 }
             });
     }
 
     // 错误提示
     function showError(message) {
-        alert('错误：' + message);
+        showMessage(message, 'error');
     }
 
     // 成功提示
     function showSuccess(message) {
-        alert('成功：' + message);
+        showMessage(message, 'success');
     }
 </script>