/**
 * 汽车测评企业站主题样式
 * QicheLa Auto Review Theme
 * 基于 qichela 风格重写
 */

/* 全局变量 */
:root {
  --primary-color: #1e3a8a;
  --secondary-color: #3b82f6;
  --accent-color: #f59e0b;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 懒加载图片占位 */
.lazy-img {
    background-color: #f0f0f0;
    background-image: linear-gradient(45deg, #f0f0f0 25%, transparent 25%), 
                      linear-gradient(-45deg, #f0f0f0 25%, transparent 25%), 
                      linear-gradient(45deg, transparent 75%, #f0f0f0 75%), 
                      linear-gradient(-45deg, transparent 75%, #f0f0f0 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    min-height: 200px;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.wrap {
  background: var(--bg-white);
}

/* 内容包装器 - 主内容+侧边栏布局 */
.content-wrapper {
  display: flex;
  gap: 30px;
  align-items: flex-start;
}

/* 主内容容器布局 */
.main-content {
  display: flex;
  gap: 30px;
  align-items: flex-start;
  flex: 1;
  min-width: 0; /* 防止内容溢出 */
}

/* 标签页主内容区域 - 与.main-content保持一致 */
.main {
  flex: 1;
  min-width: 0; /* 防止内容溢出 */
}

/* 内容页主内容区域 - 确保占据剩余空间 */
.main-area {
  flex: 1;
  min-width: 0; /* 防止内容溢出 */
}

/* 首页主内容纵向排列 */
.content-wrapper .main-content {
  flex-direction: column;
  gap: 40px; /* 增加section之间的间距 */
}

/* 兼容auto-theme的布局 */
.container.wrap {
  display: flex;
  gap: 30px;
  align-items: flex-start;
}

.container.wrap .main-content {
  flex: 1;
  min-width: 0;
}

.sidebar {
  width: 350px;
  flex-shrink: 0;
}

/* 头部样式 */
.header {
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo img {
  display: block;
  width: 190px;
  height: 80px;
  object-fit: contain;
}

.logo span {
  color: var(--accent-color);
}

/* 导航菜单 */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
  align-items: center;
}

.nav-menu a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: var(--transition);
  padding: 8px 0;
  position: relative;
}

.nav-menu a:hover {
  color: var(--secondary-color);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary-color);
  transition: var(--transition);
}

.nav-menu a:hover::after {
  width: 100%;
}

/* Hero Banner */
.hero-banner {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
  height: 400px;
  text-align: center;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 20"><defs><radialGradient id="a" cx="50%" cy="40%"><stop offset="0%" stop-color="white" stop-opacity="0.1"/><stop offset="100%" stop-color="white" stop-opacity="0"/></radialGradient></defs><rect width="100" height="20" fill="url(%23a)"/></svg>') repeat;
  opacity: 0.1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  height: 80px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
}

.hero-description {
  font-size: 20px;
  margin-bottom: 40px;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  height: 60px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  margin-right: auto;
}

.hero-btn {
  display: inline-block;
  background: var(--accent-color);
  color: white;
  padding: 15px 30px;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.hero-btn:hover {
  background: #d97706;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.hero-background {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-background::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(rgba(30, 58, 138, 0.8), rgba(59, 130, 246, 0.8));
  z-index: 1;
}

/* 特色服务区域 */
.features-section {
  padding: 80px 0;
  background: var(--bg-light);
}

.section-title {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 50px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.feature-card {
  background: var(--bg-white);
  padding: 40px 30px;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  font-size: 48px;
  color: var(--secondary-color);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.6;
}

/* 数据统计区域 */
.stats-section {
  padding: 80px 0;
  background: var(--primary-color);
  color: white;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  text-align: center;
}

.stat-item {
  padding: 20px;
}

.stat-icon {
  font-size: 36px;
  margin-bottom: 15px;
  color: var(--accent-color);
}

.stat-number {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 10px;
  display: block;
}

.stat-label {
  font-size: 16px;
  opacity: 0.9;
}

/* 分类导航 */
.category-section {
  padding: 80px 0;
  background: var(--bg-white);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 20px;
  margin-top: 30px;
  width: 100%;
}

.category-card {
  background: var(--bg-light);
  padding: 20px 15px;
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
  text-decoration: none;
  color: var(--text-dark);
  border: 1px solid var(--border-color);
}

.category-card:hover {
  background: var(--secondary-color);
  color: white;
  transform: translateY(-2px);
}

.category-icon {
  font-size: 24px;
  margin-bottom: 10px;
  display: block;
}

.category-name {
  font-weight: 500;
  font-size: 14px;
}

/* section tabs样式 */
.section-header {
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.section-tabs {
  display: flex;
  gap: 15px;
  margin-top: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.section-tabs .tab {
  padding: 8px 16px;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.section-tabs .tab:hover {
  background: var(--secondary-color);
  color: white;
  border-color: var(--secondary-color);
}

.section-tabs .tab.active {
  background: var(--secondary-color);
  color: white;
  border-color: var(--secondary-color);
}

.article-list {
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.article-item {
  display: flex;
  flex-direction: row;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
  align-items: top;
  background: var(--bg-white);
  vertical-align: top;
}

.article-image,
.article-content {
  vertical-align: top;
  margin-top: 0 !important;
  padding-top: 0 !important;
}

.article-title {
  margin-top: 0 !important;
}

.article-item:hover {
  background: var(--bg-light);
}

.article-image {
  width: 100px;
  height: 70px;
  border-radius: var(--border-radius);
  overflow: hidden;
  flex-shrink: 0;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
  margin: 0;
  padding: 0;
  display: block;
}

.article-item:hover .article-image img {
  transform: scale(1.05);
}

.article-content {
  flex: 1;
  min-width: 0;
  margin-top: 0;
}

.article-content > *:first-child {
  margin-top: 0;
}

.article-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.article-title a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

.article-title a:hover {
  color: var(--secondary-color);
}

.article-excerpt {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.article-meta {
  display: flex;
  gap: 15px;
  font-size: 12px;
  color: var(--text-light);
  flex-wrap: wrap;
  align-items: center;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

/* 侧边栏 */
.sidebar {
  background: var(--bg-white);
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.sidebar-section {
  margin-bottom: 30px;
}

.sidebar-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--secondary-color);
}

/* 搜索框 */
.search-box {
  position: relative;
  margin-bottom: 20px;
}

.search-input {
  width: 100%;
  padding: 10px 40px 10px 15px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 13px;
  transition: var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-btn {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--secondary-color);
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
}

.search-btn:hover {
  background: var(--primary-color);
}

/* 热门文章 */
.hot-articles {
  list-style: none;
}

.hot-article-item {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
  align-items: center;
}

.hot-article-item:last-child {
  border-bottom: none;
}

.hot-article-rank {
  width: 20px;
  height: 20px;
  background: var(--secondary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
}

.hot-article-title {
  flex: 1;
  font-size: 13px;
  line-height: 1.3;
}

.hot-article-title a {
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
}

.hot-article-title a:hover {
  color: var(--secondary-color);
}

/* 标签云 */
.tag-cloud,
.tagcloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-item,
.tagcloud a {
  display: inline-block;
  padding: 4px 10px;
  background: var(--bg-light);
  color: var(--text-dark);
  text-decoration: none;
  border-radius: 15px;
  font-size: 11px;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.tag-item:hover,
.tagcloud a:hover {
  background: var(--secondary-color);
  color: white;
  border-color: var(--secondary-color);
}

/* 扁平页面侧边栏样式 */
.widget {
  background: var(--bg-white);
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  margin-bottom: 25px;
}

.widget-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--secondary-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-form {
  position: relative;
}

.search-input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.search-form .search-input {
  width: 100%;
  padding: 10px 40px 10px 15px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 13px;
  transition: var(--transition);
}

.search-form .search-input:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-form .search-btn {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--secondary-color);
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
}

.search-form .search-btn:hover {
  background: var(--primary-color);
}

.hot-posts-list {
  list-style: none;
}

.hot-post-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  align-items: flex-start;
}

.hot-post-item:last-child {
  border-bottom: none;
}

.post-rank {
  width: 24px;
  height: 24px;
  background: var(--secondary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 2px;
}

.post-content {
  flex: 1;
}

.post-title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  line-height: 1.4;
}

.post-title a {
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
}

.post-title a:hover {
  color: var(--secondary-color);
}

.post-meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--text-light);
}

.post-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-link {
  display: inline-block;
  padding: 5px 12px;
  background: var(--bg-light);
  color: var(--text-dark);
  text-decoration: none;
  border-radius: 20px;
  font-size: 12px;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.tag-link:hover {
  background: var(--secondary-color);
  color: white;
  border-color: var(--secondary-color);
  transform: translateY(-1px);
}

.services-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.service-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px;
  background: var(--bg-light);
  color: var(--text-dark);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-size: 13px;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.service-item:hover {
  background: var(--secondary-color);
  color: white;
  border-color: var(--secondary-color);
  transform: translateY(-1px);
}

.service-item i {
  font-size: 14px;
}

/* 最新文章区域 */
.latest-posts {
  margin-bottom: 40px;
}

.latest-posts .section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 30px;
}

.latest-posts .section-title {
  margin-bottom: 0;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
  margin-top: 20px;
}

.posts-grid .item {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.posts-grid .item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.posts-grid .item-img {
  position: relative;
  overflow: hidden;
  height: 100px;
}

.posts-grid .item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.posts-grid .item:hover .item-img img {
  transform: scale(1.05);
}

.posts-grid .item-category {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--secondary-color);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  text-decoration: none;
  z-index: 2;
}

.posts-grid .item-content {
  padding: 12px;
}

.latest-posts .item-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.3;
}
.posts-grid .item-title a {
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
}

.posts-grid .item-title a:hover {
  color: var(--secondary-color);
}

.posts-grid .sticky-post {
  background: var(--accent-color);
  color: white;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
  margin-right: 5px;
}

.posts-grid .item-excerpt {
  color: var(--text-light);
  font-size: 13px;
  line-height: 1.5;
  margin-bottom: 12px;
}

.posts-grid .item-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  color: var(--text-light);
}

.posts-grid .item-meta-li {
  display: flex;
  align-items: center;
  gap: 5px;
}

.posts-grid .item-meta-right {
  margin-left: auto;
  display: flex;
  gap: 10px;
}

/* 企业站专用样式 */
.enterprise-hero {
  position: relative;
  height: 600px;
  overflow: hidden;
}

.hero-slider {
  height: 100%;
}

.hero-slide {
  height: 100%;
  position: relative;
}

.hero-background {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
}

.hero-text {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 24px;
  margin-bottom: 40px;
  opacity: 0.9;
}

.hero-features {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
}

.feature-icon {
  font-size: 24px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: var(--accent-color);
  color: white;
}

.btn-primary:hover {
  background: #d97706;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--secondary-color);
  color: white;
}

.btn-secondary:hover {
  background: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-outline:hover {
  background: white;
  color: var(--primary-color);
  transform: translateY(-2px);
}

.enterprise-services {
  padding: 80px 0;
  background: var(--bg-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.service-card {
  background: var(--bg-white);
  padding: 40px 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.service-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--text-dark);
}

.service-card p {
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.6;
}

.service-features {
  list-style: none;
  margin-bottom: 25px;
  text-align: left;
}

.service-features li {
  padding: 5px 0;
  color: var(--text-light);
  font-size: 14px;
}

.service-link {
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.service-link:hover {
  color: var(--primary-color);
  text-decoration: underline;
}

.enterprise-cases {
  padding: 60px 0;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.case-card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.case-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.case-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.case-card:hover .case-image img {
  transform: scale(1.05);
}

.case-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--accent-color);
  color: white;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.case-content {
  padding: 25px;
}

.case-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.case-title a {
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
}

.case-title a:hover {
  color: var(--secondary-color);
}

.case-excerpt {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 15px;
}

.case-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-light);
}

.technical-articles {
  padding: 60px 0;
  background: var(--bg-light);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  margin-top: 40px;
}

.article-card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-image {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.article-card:hover .card-image img {
  transform: scale(1.05);
}

.card-category {
  position: absolute;
  top: 15px;
  left: 15px;
  background: var(--secondary-color);
  color: white;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.card-content {
  padding: 25px;
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.card-title a {
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
}

.card-title a:hover {
  color: var(--secondary-color);
}

.card-description {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 15px;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-light);
}

.enterprise-credentials {
  padding: 60px 0;
}

.credentials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.credential-card {
  background: var(--bg-white);
  padding: 40px 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.credential-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.credential-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.credential-card h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--text-dark);
}

.credential-card p {
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.6;
}

.credential-number {
  font-size: 14px;
  color: var(--secondary-color);
  font-weight: 500;
  background: var(--bg-light);
  padding: 8px 15px;
  border-radius: 20px;
  display: inline-block;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 15px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-light);
}

.view-more {
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.view-more:hover {
  color: var(--primary-color);
  text-decoration: underline;
}

/* 页脚 */
.footer {
  background: var(--text-dark);
  color: white;
  padding: 40px 0 20px;
  margin-top: 60px;
  position: relative;
  z-index: 1;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 30px;
}

.footer-section h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
  color: white;
}

.footer-section p,
.footer-section li {
  color: #d1d5db;
  line-height: 1.6;
  margin-bottom: 10px;
}

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

.footer-section a {
  color: #d1d5db;
  text-decoration: none;
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #374151;
  color: #9ca3af;
  font-size: 14px;
}

/* 页脚详细样式 */
.footer-main {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-logo h3 {
  font-size: 24px;
  font-weight: 700;
  color: white;
  margin-bottom: 8px;
}

.footer-tagline {
  color: var(--accent-color);
  font-size: 14px;
  margin-bottom: 20px;
}

.footer-description {
  color: #d1d5db;
  line-height: 1.6;
  margin-bottom: 25px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: var(--transition);
  font-size: 16px;
}

.social-link:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
}

.footer-title {
  font-size: 18px;
  font-weight: 600;
  color: white;
  margin-bottom: 20px;
}

.nav-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.nav-column h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 15px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-list {
  list-style: none;
}

.nav-list li {
  margin-bottom: 8px;
}

.nav-list a {
  color: #d1d5db;
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.nav-list a:hover {
  color: var(--accent-color);
  padding-left: 5px;
}

.contact-info {
  margin-bottom: 25px;
}

.contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 15px;
}

.contact-item i {
  width: 20px;
  color: var(--accent-color);
  font-size: 16px;
  margin-top: 2px;
}

.contact-text {
  flex: 1;
}

.contact-label {
  display: block;
  font-size: 12px;
  color: #9ca3af;
  margin-bottom: 2px;
}

.contact-value {
  display: block;
  color: #d1d5db;
  font-size: 14px;
}

.contact-actions {
  margin-top: 20px;
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--secondary-color);
  color: white;
  padding: 10px 20px;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

.contact-btn:hover {
  background: var(--primary-color);
  transform: translateY(-1px);
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: #9ca3af;
  text-decoration: none;
  font-size: 13px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent-color);
}

.footer-stats {
  display: flex;
  gap: 20px;
}

.stat-item {
  text-align: center;
}

.stat-label {
  display: block;
  font-size: 12px;
  color: #9ca3af;
  margin-bottom: 2px;
}

.stat-value {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--accent-color);
}

.footer-copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #374151;
}

.footer-copyright p {
  color: #9ca3af;
  font-size: 13px;
  margin: 0;
}

.footer-copyright a {
  color: #d1d5db;
  text-decoration: none;
  transition: var(--transition);
}

.footer-copyright a:hover {
  color: var(--accent-color);
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--secondary-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  box-shadow: var(--shadow-md);
  z-index: 100;
}

/* 登录弹窗样式 */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1050;
  display: none;
}

.modal.show {
  display: flex !important;
  align-items: center;
  justify-content: center;
}

.modal-dialog {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  max-width: 400px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 0;
}

.close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-light);
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close:hover {
  color: var(--text-dark);
}

.modal-body {
  padding: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-dark);
}

.form-control {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 14px;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: var(--secondary-color);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-color);
}

.btn-block {
  width: 100%;
}

.form-links {
  text-align: center;
  margin-top: 15px;
  font-size: 14px;
}

.form-links a {
  color: var(--secondary-color);
  text-decoration: none;
}

.form-links a:hover {
  text-decoration: underline;
}

.divider {
  margin: 0 10px;
  color: var(--text-light);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-color);
  transform: translateY(-2px);
}

/* 响应式导航按钮 */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-dark);
  cursor: pointer;
  padding: 5px;
}

/* 面包屑导航 */
.breadcrumb {
  padding: 20px 0;
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb-list {
  display: flex;
  list-style: none;
  gap: 10px;
  align-items: center;
  font-size: 14px;
}

.breadcrumb-item {
  color: var(--text-light);
}

.breadcrumb-item a {
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb-item a:hover {
  color: var(--secondary-color);
}

.breadcrumb-separator {
  color: var(--text-light);
  margin: 0 5px;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 40px 0;
}

.page-item {
  list-style: none;
}

.page-link {
  display: block;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
  min-width: 36px;
  text-align: center;
}

.page-link:hover,
.page-item.active .page-link {
  background: var(--secondary-color);
  color: white;
  border-color: var(--secondary-color);
}

.page-item.disabled .page-link {
  color: var(--text-light);
  cursor: not-allowed;
  background: var(--bg-light);
}

/* 标签页切换 */
.tab-nav {
  display: flex;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 30px;
}

.tab-item {
  padding: 12px 24px;
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.tab-item.active {
  color: var(--secondary-color);
}

.tab-item.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--secondary-color);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* 合作伙伴 */
.partners-section {
  padding: 40px 0;
  background: var(--bg-light);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 20px;
  align-items: center;
  margin-top: 30px;
}

.partner-item {
  text-align: center;
  opacity: 0.7;
  transition: var(--transition);
}

.partner-item:hover {
  opacity: 1;
}

.partner-logo {
  max-width: 100px;
  height: 40px;
  object-fit: contain;
  filter: grayscale(100%);
  transition: var(--transition);
}

.partner-item:hover .partner-logo {
  filter: grayscale(0%);
}

/* 内容页详细样式 */
.article-detail {
  background: var(--bg-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.article-header {
  padding: 40px 40px 0;
  border-bottom: 1px solid var(--border-color);
}

.article-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  font-size: 14px;
  color: var(--text-light);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.meta-item i {
  font-size: 14px;
}

.article-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--bg-light);
  color: var(--secondary-color);
  border-radius: var(--border-radius);
  font-size: 12px;
  text-decoration: none;
  margin-right: 8px;
  transition: var(--transition);
}

.article-tag:hover {
  background: var(--secondary-color);
  color: white;
}

.article-content {
  padding: 40px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dark);
}

.article-content h2,
.article-content h3,
.article-content h4 {
  margin: 30px 0 20px;
  color: var(--text-dark);
  font-weight: 600;
}

.article-content h2 {
  font-size: 24px;
  border-left: 4px solid var(--secondary-color);
  padding-left: 16px;
}

.article-content h3 {
  font-size: 20px;
}

.article-content p {
  margin-bottom: 20px;
}



/* 文章内容图片统一尺寸控制 - 宽度固定500px，高度自适应 */
.article-content img {
  width: 500px !important;
  height: auto !important;
  max-width: 100% !important;
  max-height: none !important;
  object-fit: contain !important;
  object-position: center !important;
  border-radius: var(--border-radius);
  margin: 20px auto !important;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: block !important;
  opacity: 1 !important;
}

/* 强制统一图片尺寸 - 宽度500px固定 */
.article-content img:not([align]):not([class*="img-"]) {
  width: 500px !important;
  height: auto !important;
  max-width: 100% !important;
  max-height: none !important;
  object-fit: contain !important;
  display: block !important;
  margin: 20px auto !important;
}

/* 小图片统一处理 - 宽度500px */
.article-content img[src*="small"],
.article-content img[width*="200"],
.article-content img[width*="300"],
.article-content img[width*="400"] {
  width: 500px !important;
  height: auto !important;
  max-width: 100% !important;
  max-height: none !important;
  margin: 20px auto !important;
  display: block !important;
}

/* 大图片统一处理 - 宽度500px */
.article-content img[src*="large"],
.article-content img[width*="800"],
.article-content img[width*="900"],
.article-content img[width*="1000"] {
  width: 500px !important;
  height: auto !important;
  max-width: 100% !important;
  max-height: none !important;
}

/* 超高图片处理 */
.article-content img[style*="height"][style*="800"],
.article-content img[style*="height"][style*="900"],
.article-content img[style*="height"][style*="1000"] {
  max-height: 600px !important;
  object-fit: contain !important;
}

/* 通用图片统一规则 - 宽度500px固定 */
.article-content * img {
  width: 500px !important;
  height: auto !important;
  max-width: 100% !important;
  max-height: none !important;
  object-fit: contain !important;
  display: block !important;
  margin: 20px auto !important;
  box-sizing: border-box !important;
}

/* 特殊图片覆盖规则 */
.article-content img[src*="avatar"],
.article-content img[src*="icon"],
.article-content img[src*="logo"] {
  max-height: 100px !important;
  max-width: 100px !important;
}

/* 小图片居中显示 */
.article-content img[src*="small"] {
  max-width: 400px;
  margin: 20px auto;
  display: block;
}

/* 大图片限制 */
.article-content img[src*="large"] {
  max-height: 800px;
}

/* 图片悬停效果 */
.article-content img:hover {
  box-shadow: var(--shadow-md);
  transform: scale(1.01);
}

/* 图片容器 */
.article-content figure {
  margin: 25px 0;
  text-align: center;
}

.article-content figure img {
  margin: 0 auto;
}

/* 图片说明文字 */
.article-content figcaption {
  font-size: 14px;
  color: var(--text-light);
  margin-top: 10px;
  font-style: italic;
}

/* 响应式图片统一控制 - 保持宽度500px */
@media screen and (max-width: 768px) {
  .article-content img {
    width: 500px !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: none !important;
    margin: 15px auto !important;
  }
  
  .article-content img:not([align]):not([class*="img-"]) {
    width: 500px !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: none !important;
  }
  
  .article-content img[src*="small"],
  .article-content img[width*="200"],
  .article-content img[width*="300"],
  .article-content img[width*="400"] {
    width: 500px !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: none !important;
  }
  
  .article-content img[align*="left"],
  .article-content img[align*="right"] {
    width: 500px !important;
    height: auto !important;
    max-width: 100% !important;
    margin: 10px auto !important;
    float: none !important;
    display: block !important;
  }
}

@media screen and (max-width: 480px) {
  .article-content img {
    width: 500px !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: none !important;
    margin: 10px auto !important;
  }
  
  .article-content img:not([align]):not([class*="img-"]) {
    width: 500px !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: none !important;
  }
  
  .article-content img[src*="small"],
  .article-content img[width*="200"],
  .article-content img[width*="300"],
  .article-content img[width*="400"] {
    width: 500px !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: none !important;
  }
  
  .article-content img[align*="left"],
  .article-content img[align*="right"] {
    width: 500px !important;
    height: auto !important;
    max-width: 100% !important;
    margin: 10px auto !important;
    float: none !important;
    display: block !important;
  }
}

/* 图片模态框样式 */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease-in-out;
}

.image-modal img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    animation: scaleIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* 图片对齐方式 */
.article-content img[align="left"] {
  float: left;
  margin: 10px 20px 10px 0;
  max-width: 50%;
}

.article-content img[align="right"] {
  float: right;
  margin: 10px 0 10px 20px;
  max-width: 50%;
}

.article-content img[align="center"] {
  display: block;
  margin: 20px auto;
}

/* 清除浮动 */
.article-content::after {
  content: "";
  display: table;
  clear: both;
}

/* 图片加载动画 - 仅针对延迟加载图片 */
.article-content img[data-src]:not([src]) {
  opacity: 0;
}

.article-content img[loaded] {
  opacity: 1;
}

/* 图片边框样式 */
.article-content img.bordered {
  border: 2px solid var(--border-color);
  padding: 5px;
}

.article-content img.shadow {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.article-content ul,
.article-content ol {
  margin: 20px 0;
  padding-left: 30px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  background: var(--bg-light);
  border-left: 4px solid var(--secondary-color);
  padding: 20px;
  margin: 20px 0;
  font-style: italic;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.article-content code {
  background: var(--bg-light);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 14px;
}

.article-content pre {
  background: var(--bg-dark);
  color: var(--text-light);
  padding: 20px;
  border-radius: var(--border-radius);
  overflow-x: auto;
  margin: 20px 0;
}

.article-content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.article-footer {
  padding: 0 40px 40px;
}

.article-copyright {
  background: var(--bg-light);
  padding: 25px;
  border-radius: var(--border-radius);
  border-left: 4px solid var(--accent-color);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-light);
}

.article-copyright p {
  margin-bottom: 10px;
}

.article-copyright p:last-child {
  margin-bottom: 0;
}

.article-copyright a {
  color: var(--secondary-color);
  text-decoration: none;
}

.article-copyright a:hover {
  text-decoration: underline;
}

/* 相关推荐 */
.related-articles {
  margin-top: 40px;
  background: var(--bg-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 30px;
}

.related-list {
  display: grid;
  gap: 15px;
}

.related-item a {
  display: block;
  padding: 15px 20px;
  background: var(--bg-light);
  border-radius: var(--border-radius);
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
  border-left: 3px solid transparent;
}

.related-item a:hover {
  background: var(--bg-white);
  border-left-color: var(--secondary-color);
  transform: translateX(5px);
}

/* 文章导航 */
.article-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
}

.nav-item {
  background: var(--bg-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}

.nav-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.nav-link {
  display: block;
  padding: 25px;
  text-decoration: none;
  color: inherit;
}

.nav-label {
  display: block;
  font-size: 12px;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.nav-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.4;
}

.nav-prev .nav-label::before {
  content: "← ";
}

.nav-next .nav-label::after {
  content: " →";
}

.nav-next {
  text-align: right;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow-md);
    gap: 0;
  }
  
  .nav-menu.show {
    display: flex;
  }
  
  .nav-menu a {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
  }
  
  .nav-menu a:last-child {
    border-bottom: none;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-description {
    font-size: 16px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .category-grid {
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  }
  
  .article-item {
    flex-direction: row;
  }
  
  .article-image {
    width: 80px;
    height: 60px;
    flex-shrink: 0;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .partners-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* 企业站响应式 */
  .enterprise-hero {
    height: 500px;
  }
  
  .hero-title {
    font-size: 36px;
  }
  
  .hero-subtitle {
    font-size: 18px;
  }
  
  .hero-features {
    gap: 20px;
    margin-bottom: 30px;
  }
  
  .feature-item {
    font-size: 14px;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 15px;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .service-card {
    padding: 30px 20px;
  }
  
  .cases-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .credentials-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .credential-card {
    padding: 30px 20px;
  }
}

@media screen and (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  .hero-title {
    font-size: 24px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .category-grid {
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  }
  
  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .section-title {
    font-size: 28px;
  }
  
  /* 企业站移动端 */
  .enterprise-hero {
    height: 400px;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .hero-features {
    flex-direction: column;
    gap: 15px;
  }
  
  .feature-item {
    font-size: 13px;
  }
  
  .section-title {
    font-size: 24px;
  }
  
  .section-subtitle {
    font-size: 16px;
  }
  
  .credentials-grid {
    grid-template-columns: 1fr;
  }
}

/* 搜索页和标签页专用样式 */
.cols-0 {
  display: block;
  margin: 0;
  padding: 0;
}

.cols-0 .item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
  align-items: flex-start;
}

.cols-0 .item:last-child {
  border-bottom: none;
}

.cols-0 .item-img {
  width: 120px;
  height: 80px;
  border-radius: var(--border-radius);
  overflow: hidden;
  flex-shrink: 0;
}

.cols-0 .item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.cols-0 .item:hover .item-img img {
  transform: scale(1.05);
}

.cols-0 .item-content {
  flex: 1;
  min-width: 0;
}

.cols-0 .item-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.cols-0 .item-title a {
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
}

.cols-0 .item-title a:hover {
  color: var(--secondary-color);
}

.cols-0 .item-excerpt {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 10px;
}

.cols-0 .item-meta {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 12px;
  color: var(--text-light);
}

.cols-0 .item-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.cols-0 .item-category {
  display: inline-block;
  background: var(--secondary-color);
  color: white;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  text-decoration: none;
  margin-right: 8px;
}

.cols-0 .item-category:hover {
  background: var(--primary-color);
}

/* 搜索页和标签页专用样式 */
.sec-panel {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  overflow: hidden;
  margin-bottom: 30px;
}

.sec-panel-head {
  background: var(--bg-light);
  padding: 20px 25px;
  border-bottom: 1px solid var(--border-color);
}

.sec-panel-head h1 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 0;
}

.sec-panel-head h1 span {
  color: var(--secondary-color);
}

.post-loop {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-loop-default {
  padding: 25px;
}

.post-loop .item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
  align-items: flex-start;
}

.post-loop .item:last-child {
  border-bottom: none;
}

.post-loop .item-img {
  width: 120px;
  height: 80px;
  border-radius: var(--border-radius);
  overflow: hidden;
  flex-shrink: 0;
}

.post-loop .item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.post-loop .item:hover .item-img img {
  transform: scale(1.05);
}

.post-loop .item-content {
  flex: 1;
  min-width: 0;
}

.post-loop .item-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.post-loop .item-title a {
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
}

.post-loop .item-title a:hover {
  color: var(--secondary-color);
}

.post-loop .item-excerpt {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 10px;
}

.post-loop .item-meta {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 12px;
  color: var(--text-light);
}

.post-loop .item-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.post-loop .item-category {
  display: inline-block;
  background: var(--secondary-color);
  color: white;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  text-decoration: none;
  margin-right: 8px;
}

.post-loop .item-category:hover {
  background: var(--primary-color);
}

/* 分页样式 */
.pagination {
  padding: 25px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-light);
}

.pagination nav {
  margin: 0;
}

.pagination .pagination {
  display: flex;
  justify-content: center;
  gap: 5px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* 响应式调整 */
@media screen and (max-width: 768px) {
  .post-loop .item {
    flex-direction: column;
    gap: 15px;
  }
  
  .post-loop .item-img {
    width: 100%;
    height: 200px;
  }
  
  .sec-panel-head {
    padding: 15px 20px;
  }
  
  .sec-panel-head h1 {
    font-size: 20px;
  }
  
  .post-loop-default {
    padding: 20px;
  }
}

@media screen and (max-width: 480px) {
  .post-loop .item-img {
    height: 150px;
  }
  
  .post-loop .item-title {
    font-size: 15px;
  }
  
  .post-loop .item-excerpt {
    font-size: 13px;
  }
  
  .sec-panel-head h1 {
    font-size: 18px;
  }
}

/* 标签页面侧边栏widget_post_thumb缩略图样式修复 */
.widget.widget_post_thumb .item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  align-items: flex-start;
}

.widget.widget_post_thumb .item:last-child {
  border-bottom: none;
}

.widget.widget_post_thumb .item-img {
  width: 60px;
  height: 45px;
  border-radius: var(--border-radius);
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
}

.widget.widget_post_thumb .item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.widget.widget_post_thumb .item-content {
  flex: 1;
  min-width: 0;
}

.widget.widget_post_thumb .item-title {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  line-height: 1.3;
}

.widget.widget_post_thumb .item-title a {
  color: var(--text-dark);
  text-decoration: none;
  transition: var(--transition);
}

.widget.widget_post_thumb .item-title a:hover {
  color: var(--secondary-color);
}

.widget.widget_post_thumb .item-date {
  font-size: 11px;
  color: var(--text-light);
}

/* 侧边栏响应式调整 */
@media screen and (max-width: 768px) {
  .widget.widget_post_thumb .item-img {
    width: 80px;
    height: 60px;
  }
  
  .widget.widget_post_thumb .item-title {
    font-size: 14px;
  }
  
  /* cols-0 响应式调整 */
  .cols-0 .item {
    flex-direction: column;
    gap: 15px;
  }
  
  .cols-0 .item-img {
    width: 100%;
    height: 200px;
  }
}

@media screen and (max-width: 480px) {
  .widget.widget_post_thumb .item-img {
    width: 70px;
    height: 52px;
  }
  
  /* cols-0 移动端调整 */
  .cols-0 .item-img {
    height: 150px;
  }
  
  .cols-0 .item-title {
    font-size: 15px;
  }
  
  .cols-0 .item-excerpt {
    font-size: 13px;
  }
}

/* 轮播相关样式 */
.carousel-container {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
}

.carousel-item {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: opacity 0.5s ease-in-out;
}

.carousel-item.active {
    display: block;
    position: relative;
}

/* 轮播控制按钮 */
.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
}

.carousel-control:hover {
    background-color: rgba(0, 0, 0, 0.7);
}

.carousel-control.prev {
    left: 20px;
}

.carousel-control.next {
    right: 20px;
}

/* 轮播指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.indicator:hover,
.indicator.active {
    background-color: white;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .carousel-control {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .carousel-control.prev {
        left: 10px;
    }
    
    .carousel-control.next {
        right: 10px;
    }
    
    .carousel-indicators {
        bottom: 10px;
    }
    
    .indicator {
        width: 10px;
        height: 10px;
    }
}

/* 幻灯片相关样式 - 新增 */
.carousel-slide-wrapper {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  /* 让缩略图撑满hero区域高度 */
  display: flex;
  flex-direction: column;
  justify-content: center; /* 垂直居中 */
  align-items: center; /* 水平居中 */
  height: 400px; /* 撑满hero高度 */
}

.carousel-slide-container {
  position: relative;
  width: 800px;
  height: 100%; /* 撑满父容器高度 */
  overflow: hidden;
  margin: 0 auto;
  /* 撑满高度，移除底部边距 */
}

.carousel-image-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.carousel-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.carousel-title-overlay {
  position: absolute;
  top: 50%; /* 垂直居中 */
  left: 50%; /* 水平居中 */
  transform: translate(-50%, -50%); /* 完全居中 */
  color: white;
  padding: 0;
  z-index: 10;
  box-sizing: border-box;
  text-align: center; /* 文字居中 */
  max-width: 80%; /* 最大宽度限制 */
}

.carousel-title-overlay h3 {
  margin: 0;
  font-size: 24px;
  font-weight: bold;
  color: white;
}

/* 按钮和描述区域已移除 */

/* 响应式调整 */
@media (max-width: 768px) {
  .carousel-slide-wrapper {
    height: 350px; /* 平板设备高度 */
  }
  
  .carousel-slide-container {
    width: 100%;
    max-width: 600px;
    height: 100%; /* 撑满父容器 */
  }
  
  .carousel-title-overlay h3 {
    font-size: 20px;
  }
}

@media (max-width: 576px) {
  .carousel-slide-wrapper {
    height: 300px; /* 手机设备高度 */
  }
  
  .carousel-slide-container {
    width: 100%;
    max-width: 400px;
    height: 100%; /* 撑满父容器 */
  }
  
  .carousel-title-overlay h3 {
    font-size: 18px;
  }
  
  .hero-description {
    font-size: 14px;
  }
  
  .hero-btn {
    padding: 10px 25px;
    font-size: 14px;
  }
}