/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Microsoft YaHei', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f5f5f5;
}

/* 导航栏样式 */
nav {
  background-color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
}

.logo {
  display: flex;
  align-items: baseline;
  font-weight: bold;
  color: #e63946;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.03);
}

.logo-main {
  font-size: 1.8rem;
  font-weight: 800;
  color: #e63946;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.logo-sub {
  font-size: 1.2rem;
  color: #1d3557;
  margin-left: 0.3rem;
  font-weight: 500;
  font-style: italic;
  position: relative;
}

.logo-sub::before,
.logo-sub::after {
  content: '';
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent, #1d3557, transparent);
  left: -15px;
  right: -15px;
}

.logo-sub::before {
  top: -5px;
}

.logo-sub::after {
  bottom: -5px;
}

@media (max-width: 768px) {
  .logo-main {
    font-size: 1.5rem;
  }
  
  .logo-sub {
    font-size: 1rem;
  }
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: #e63946;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* 主要内容区域 */
.container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
}

/* 文章卡片样式 */
.article-card {
  background-color: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
  transition: transform 0.3s, box-shadow 0.3s;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.article-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.product-image {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.article-content {
  padding: 1.5rem;
}

.article-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #333;
}

.article-title a {
  text-decoration: none;
  color: inherit;
}

.article-excerpt {
  color: #666;
  margin-bottom: 1rem;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: #999;
}

.article-category {
  background-color: #f1faee;
  color: #1d3557;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
}

/* 商品卡片样式 */
.product-card {
  background-color: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s;
}

.product-card:hover {
  transform: translateY(-5px);
}

.product-image {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.product-info {
  padding: 1rem;
}

.product-title {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: #333;
}

.product-price {
  color: #e63946;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.buy-button {
  display: inline-block;
  background-color: #e63946;
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.3s;
}

.buy-button:hover {
  background-color: #c1121f;
}

/* 页脚样式 */
footer {
  background-color: #1d3557;
  color: white;
  padding: 3rem 0;
  margin-top: 3rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.footer-column h3 {
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 0.5rem;
}

.footer-column a {
  text-decoration: none;
  color: #f1faee;
  transition: color 0.3s;
}

.footer-column a:hover {
  color: #a8dadc;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #457b9d;
  margin-top: 2rem;
}

/* 内容页样式 */
.article-full {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.article-full h1 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  color: #333;
}

.article-full-image {
  width: 398px;
  height: auto;
  margin: 0 auto 2rem;
  border-radius: 8px;
  border: 2px solid #e0e0e0;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  display: block;
}

.article-full-content {
  margin-bottom: 2rem;
}

.article-full-content p {
  margin-bottom: 1rem;
  line-height: 1.8;
}

/* 商品信息块 */
.product-info-block {
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 1.5rem;
  margin: 2rem 0;
  background-color: #f8f9fa;
}

.product-info-block h3 {
  margin-bottom: 1rem;
  color: #333;
}

/* 评论区样式 */
.comments-section {
  margin-top: 3rem;
}

.comments-section h3 {
  margin-bottom: 1.5rem;
  color: #333;
}

.comment {
  background-color: #f8f9fa;
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.comment-author {
  font-weight: bold;
  margin-bottom: 0.5rem;
  color: #333;
}

.comment-date {
  font-size: 0.8rem;
  color: #999;
  margin-bottom: 0.5rem;
}

/* 分类页面样式 */
.category-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 2rem;
}

.sidebar {
  background-color: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  height: fit-content;
  position: sticky;
  top: 80px;
}

.category-list {
  list-style: none;
  margin-bottom: 2rem;
}

.category-list li {
  margin-bottom: 0.5rem;
}

.category-list .main-category {
  font-weight: bold;
  margin-top: 1rem;
  color: #333;
}

.category-list .sub-category {
  margin-left: 1rem;
  font-size: 0.9rem;
  color: #666;
}

.category-list .sub-category.active {
  color: #e63946;
  font-weight: bold;
}

.category-list .article-count {
  color: #999;
  font-size: 0.8rem;
  margin-left: 0.5rem;
}

/* 标签云 */
.tags-cloud {
  margin-bottom: 2rem;
}

.tags-cloud h4 {
  margin-bottom: 1rem;
  color: #333;
}

.tag {
  display: inline-block;
  background-color: #f1faee;
  color: #1d3557;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  text-decoration: none;
  transition: all 0.3s;
}

.tag:hover {
  background-color: #a8dadc;
}

/* 促销信息 */
.promotion-section {
  background-color: #fff3cd;
  border: 1px solid #ffeaa7;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 2rem;
}

.promotion-section h4 {
  color: #856404;
  margin-bottom: 0.5rem;
}

.promotion-section p {
  color: #856404;
  font-size: 0.9rem;
}

/* 排序和分页 */
.sorting-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.sort-select {
  padding: 0.5rem;
  border: 1px solid #ddd;
  border-radius: 4px;
}
/* 分页导航样式 - 支持ul结构 */
.pagination {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
  padding: 0;
  list-style: none;
}

.pagination li {
  display: inline-block;
  margin: 0 2px;
}

.pagination li a,
.pagination li span {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  text-decoration: none;
  color: #333;
  background-color: #fff;
  transition: all 0.3s ease;
  min-width: 40px;
  text-align: center;
  font-weight: 500;
}

.pagination li a:hover {
  background-color: #f1f1f1;
  border-color: #e63946;
  color: #e63946;
  transform: translateY(-1px);
}

.pagination li.active span {
  background-color: #e63946;
  color: white;
  border-color: #e63946;
  font-weight: bold;
}

.pagination li.disabled span {
  background-color: #f8f9fa;
  color: #6c757d;
  border-color: #dee2e6;
  cursor: not-allowed;
}

@media (max-width: 768px) {
  .pagination {
    flex-wrap: wrap;
    gap: 0.3rem;
  }
  
  .pagination li a,
  .pagination li span {
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
    min-width: 35px;
  }
  
  .pagination li:not(:first-child):not(:last-child):not(:nth-child(2)):not(:nth-last-child(2)):not(.active):not(.disabled) {
    display: none;
  }
}

@media (max-width: 480px) {
  .pagination {
    margin-top: 1.5rem;
  }
  
  .pagination li a,
  .pagination li span {
    padding: 0.3rem 0.6rem;
    font-size: 0.85rem;
    min-width: 30px;
  }
}

/* 404/500页面样式 */
.error-page {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
  text-align: center;
}

.error-page h1 {
  font-size: 5rem;
  color: #e63946;
  margin-bottom: 1rem;
}

.error-page h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #333;
}

.error-page p {
  color: #666;
  margin-bottom: 2rem;
}

/* 关于我们/联系我们页面 */
.about-page, .contact-page {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.about-page h1, .contact-page h1 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  color: #333;
}

.about-page p, .contact-page p {
  margin-bottom: 1rem;
  line-height: 1.8;
  color: #666;
}

/* 联系表单 */
.contact-form {
  margin-top: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #333;
  font-weight: 500;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.submit-button {
  background-color: #e63946;
  color: white;
  padding: 0.8rem 2rem;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s;
}

.submit-button:hover {
  background-color: #c1121f;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-container {
    padding: 1rem;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background-color: white;
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    transition: right 0.3s;
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-links li {
    margin: 1rem 0;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .category-layout {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    position: static;
  }
  
  .article-full h1 {
    font-size: 1.8rem;
  }
  
  .footer-container {
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .article-card {
    margin-bottom: 1.5rem;
  }
  
  .article-title {
    font-size: 1.3rem;
  }
  
  .article-full h1 {
    font-size: 1.5rem;
  }
  
  .error-page h1 {
    font-size: 3rem;
  }
  
  .error-page h2 {
    font-size: 1.5rem;
  }
}