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

body {
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue',
    Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f5f7fa;
}

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

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-primary {
  background-color: #409eff;
  color: white;
}

.btn-primary:hover {
  background-color: #66b1ff;
}

.btn-secondary {
  background-color: white;
  color: #409eff;
  border: 1px solid #409eff;
}

.btn-secondary:hover {
  background-color: #ecf5ff;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 18px;
}

/* 导航栏 */
.header {
  background-color: #3758f9;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-logo {
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-logo h1 {
  font-size: 24px;
  font-weight: 600;
  color: white;
}

.nav-logo img {
  height: 60px;
  display: block;
}

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

.nav-item {
  margin-left: 30px;
}

.nav-link {
  text-decoration: none;
  color: white;
  font-size: 16px;
  transition: all 0.3s ease;
  position: relative;
  display: flex;
  align-items: center;
}

.nav-link:hover,
.nav-link.active {
  color: white;
  opacity: 0.9;
}

.nav-buttons {
  margin-left: 30px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-buttons .btn-primary {
  background-color: white;
  color: #3758f9;
}

.nav-buttons .btn-primary:hover {
  background-color: #f0f0f0;
  color: #3758f9;
}

.login-link {
  color: white;
  text-decoration: none;
  font-size: 16px;
  transition: opacity 0.3s ease;
}

.login-link:hover {
  opacity: 0.8;
}

.login-link.active {
  color: white;
  font-weight: 500;
}

/* 下拉菜单样式 */
.nav-item.dropdown {
  position: relative;
}

/* 下拉箭头 */
.dropdown-toggle::after {
  content: '\25BC';
  font-size: 10px;
  margin-left: 6px;
  color: white;
  opacity: 0.8;
  transition: transform 0.3s ease;
}


.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: white;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  border-radius: 8px;
  padding: 12px 0;
  min-width: 280px;
  z-index: 1001;
  list-style: none;
  border-top: 4px solid transparent;
}

.nav-item.dropdown .dropdown-menu {
  display: none;
  opacity: 0;
  animation: fadeIn 0.3s ease;
}
.nav-item.dropdown .dropdown-menu.show {
  display: block !important;
  opacity: 1 !important;
  visibility: visible !important;
  will-change: opacity;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-item {
  display: block;
  padding: 12px 20px;
  text-decoration: none;
  color: #303133;
  font-size: 14px;
  transition: all 0.3s ease;
  white-space: nowrap;
  line-height: 1.5;
}

.dropdown-item:hover {
  background-color: #ecf5ff;
  color: #409eff;
}

/* 英雄区 */
.hero {
  background: linear-gradient(135deg, #0066ff 0%, #0044cc 100%);
  color: white;
  padding: 120px 0;
  text-align: center;
}

/* 价格页面样式 */
.pricing {
  padding: 80px 0;
  background-color: #f5f7fa;
}

/* 关于我们页面样式 */
.about {
  padding: 80px 0;
  background-color: #f5f7fa;
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-content p {
  font-size: 18px;
  line-height: 1.8;
  margin-bottom: 24px;
  color: #555;
}

/* 博客页面样式 */
.blog {
  padding: 80px 0;
  background-color: #f5f7fa;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 60px;
}

.blog-post {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.blog-post:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.blog-post-meta {
  font-size: 14px;
  color: #999;
  margin-bottom: 16px;
}

.blog-post h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #333;
  line-height: 1.4;
}

.blog-post p {
  font-size: 16px;
  color: #666;
  line-height: 1.6;
}

.blog-post-image {
  margin: -24px -24px 20px -24px;
  border-radius: 12px 12px 0 0;
  overflow: hidden;
}

.blog-post-image img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}

.blog-post-content {
  padding: 24px;
}

/* AI知识库页面样式 */
.knowledgeBase {
  padding: 80px 0;
  background-color: #f5f7fa;
}

.value-propositions,
.application-scenarios,
.why-choose {
  margin-bottom: 80px;
}

.value-grid,
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.value-item,
.scenario-item {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 30px;
  transition: all 0.3s ease;
}

.value-item:hover,
.scenario-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.value-item h4,
.scenario-item h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #333;
}

.value-item p,
.scenario-item p {
  color: #666;
  margin-bottom: 16px;
}

.comparison {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 40px;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  margin-top: 30px;
}

.comparison-column h5 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #333;
}

.comparison-column ul {
  list-style: none;
  margin-top: 20px;
}

.comparison-column li {
  padding: 12px 0;
  padding-left: 24px;
  position: relative;
  color: #666;
  line-height: 1.6;
}

.comparison-column li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #3758f9;
  font-weight: bold;
}

.contact-section {
  text-align: center;
  margin-top: 60px;
}

/* Chat2DB页面样式 */
.chat2db {
  padding: 80px 0;
  background-color: #f5f7fa;
}

.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.features-list .feature-item {
  text-align: center;
  padding: 30px;
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.features-list .feature-item strong {
  display: block;
  font-size: 28px;
  font-weight: 600;
  color: #3758f9;
  margin-bottom: 12px;
}

.features-list .feature-item p {
  color: #666;
  line-height: 1.6;
}

.cta-section {
  text-align: center;
  margin-top: 80px;
  padding: 60px;
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.cta-section h3 {
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #333;
}

.cta-section p {
  font-size: 18px;
  color: #666;
  margin-bottom: 32px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 60px;
}

.pricing-card {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: all 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.pricing-card.popular {
  border: none;
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.pricing-card.active {
  border: 2px solid #3758f9 !important;
  box-shadow: none !important;
}

.popular-badge {
  background-color: #3758f9;
  color: white;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 14px;
  font-weight: 500;
  display: inline-block;
  margin-bottom: 16px;
}

.pricing-card-header {
  padding: 30px;
  text-align: center;
  background-color: #f8f9fa;
}

.pricing-card-header h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #333;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin-bottom: 8px;
}

.price {
  font-size: 48px;
  font-weight: 600;
  color: #333;
}

.period {
  font-size: 18px;
  color: #666;
  margin-left: 8px;
}

.pricing-card-body {
  padding: 30px;
}

.pricing-features h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #333;
}

.pricing-features p {
  margin-bottom: 24px;
  color: #666;
}

.pricing-features ul {
  list-style: none;
}

.pricing-features li {
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
  color: #666;
}

.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #3758f9;
  font-weight: bold;
}

.pricing-card-footer {
  padding: 0 30px 30px;
  text-align: center;
}

.hero-content h2 {
  font-size: 48px;
  font-weight: 600;
  margin-bottom: 20px;
  line-height: 1.3;
}

.hero-content p {
  font-size: 20px;
  margin-bottom: 40px;
  opacity: 0.9;
}

.hero-buttons .btn {
  margin: 0 10px;
}

/* 首页品牌展示 */
.brand-strip {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  margin-top: 48px;
}
.brand-strip img {
  height: 40px;
  object-fit: contain;
  filter: none;
  opacity: 0.95;
  transition: transform 0.2s ease, opacity 0.2s ease, filter 0.2s ease;
}
.brand-strip img:hover {
  transform: translateY(-2px);
  opacity: 1;
}

/* 品牌区（白底） */
.brands {
  background-color: white;
  padding: 32px 0;
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-top: 16px;
}
.showcase-card {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  padding: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.showcase-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}
.showcase-image {
  width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
  margin-bottom: 14px;
  border: 1px solid #e4e7ed;
}
.showcase-card h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #303133;
}
.showcase-card p {
  font-size: 14px;
  color: #606266;
  line-height: 1.7;
}

@media (max-width: 768px) {
  .showcase-grid {
    grid-template-columns: 1fr;
  }
}
/* 区块标题 */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #303133;
}

.section-header p {
  font-size: 16px;
  color: #606266;
}

/* 核心功能 */
.features {
  padding: 100px 0;
  background-color: white;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(300px, 1fr));
  gap: 30px;
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

.feature-item {
  background-color: #f5f7fa;
  padding: 40px 30px;
  border-radius: 8px;
  text-align: center;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

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

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

.feature-item h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #303133;
}

.feature-item p {
  color: #606266;
  font-size: 14px;
}

/* 私有化部署 */
.private-deployment {
  padding: 100px 0;
  background-color: #f5f7fa;
}

.private-content {
  display: flex;
  align-items: center;
  gap: 60px;
}

.private-text h3 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 20px;
  color: #303133;
}

.private-text p {
  font-size: 16px;
  color: #606266;
  margin-bottom: 20px;
}

.private-text ul {
  list-style: none;
}

.private-text li {
  font-size: 16px;
  color: #606266;
  margin-bottom: 10px;
  padding-left: 20px;
  position: relative;
}

.private-text li::before {
  content: '✓';
  color: #67c23a;
  position: absolute;
  left: 0;
}

/* 产品版本 */
.versions {
  padding: 100px 0;
  background-color: white;
}

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

.version-item {
  background-color: #f5f7fa;
  padding: 40px 30px;
  border-radius: 8px;
  border: 1px solid #e4e7ed;
  transition: all 0.3s ease;
}

.version-item:hover {
  border-color: #409eff;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.version-item h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #303133;
}

.version-item p {
  color: #606266;
  font-size: 14px;
}

/* 常见问题 */
.faq {
  padding: 100px 0;
  background-color: #f5f7fa;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background-color: white;
  margin-bottom: 20px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.faq-question {
  padding: 20px 30px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  border-bottom: 1px solid #f0f0f0;
}

.faq-question:hover {
  background-color: #f5f7fa;
}

.faq-answer {
  padding: 20px 30px;
  font-size: 14px;
  color: #606266;
  background-color: #fafafa;
}

/* 联系我们 */
.contact {
  padding: 100px 0;
  background-color: white;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  text-align: center;
}

.contact-item h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #303133;
}

.contact-item p {
  color: #606266;
  font-size: 14px;
  margin-bottom: 8px;
}

/* 页面标题 */
.page-header {
  background: linear-gradient(135deg, #0066ff 0%, #0044cc 100%);
  color: white;
  padding: 60px 0;
  text-align: center;
}

.page-header h2 {
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 16px;
}

.page-header p {
  font-size: 18px;
  opacity: 0.9;
}

/* 功能详情页面 */
.features-detail {
  padding: 80px 0;
  background-color: white;
}

.feature-detail-item {
  margin-bottom: 50px;
  padding: 30px;
  background-color: #f5f7fa;
  border-radius: 8px;
}

.feature-detail-content h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #303133;
}

.feature-detail-content p {
  font-size: 16px;
  color: #606266;
  line-height: 1.8;
}

/* 私有化部署详情页面 */
.private-detail {
  padding: 80px 0;
  background-color: white;
}

.private-detail-content h3 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 20px;
  color: #303133;
}

.private-detail-content p {
  font-size: 16px;
  color: #606266;
  margin-bottom: 30px;
  line-height: 1.8;
}

.private-features h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #303133;
}

.private-features p {
  font-size: 16px;
  color: #606266;
  margin-bottom: 20px;
  line-height: 1.8;
}

/* 版本详情页面 */
.versions-detail {
  padding: 80px 0;
  background-color: white;
}

.version-detail-item {
  background-color: #f5f7fa;
  padding: 40px 30px;
  border-radius: 8px;
  border: 1px solid #e4e7ed;
  transition: all 0.3s ease;
}

.version-detail-item:hover {
  border-color: #409eff;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.version-detail-item h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 20px;
  color: #303133;
  text-align: center;
}

.version-features h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #303133;
}

.version-features ul {
  list-style: none;
  margin-bottom: 20px;
}

.version-features li {
  font-size: 14px;
  color: #606266;
  margin-bottom: 10px;
  padding-left: 20px;
  position: relative;
}

.version-features li::before {
  content: '✓';
  color: #67c23a;
  position: absolute;
  left: 0;
}

.version-price {
  text-align: center;
  margin-bottom: 20px;
}

.version-price p {
  font-size: 18px;
  font-weight: 600;
  color: #e6a23c;
}

.version-detail-item .btn {
  width: 100%;
}

/* FAQ详情页面 */
.faq-detail {
  padding: 80px 0;
  background-color: white;
}

/* 联系我们详情页面 */
.contact-detail {
  padding: 80px 0;
  background-color: white;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 30px;
  color: #303133;
}

.contact-info-items {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.contact-info-item h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: #303133;
}

.contact-info-item p {
  font-size: 16px;
  color: #606266;
  line-height: 1.8;
}

.contact-form h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 30px;
  color: #303133;
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: #303133;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  font-size: 14px;
  color: #606266;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #409eff;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* 行动召唤 */
.cta {
  padding: 80px 0;
  background-color: #f5f7fa;
  text-align: center;
}

.cta-content h3 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #303133;
}

.cta-content p {
  font-size: 18px;
  color: #606266;
  margin-bottom: 30px;
}

/* 页脚 */
.footer {
  background-color: #303133;
  color: #909399;
  padding: 60px 0 20px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
}

.footer-logo h2 {
  font-size: 24px;
  font-weight: 600;
  color: white;
  margin-bottom: 16px;
}

.footer-links ul {
  display: flex;
  list-style: none;
  gap: 30px;
}

.footer-links a {
  text-decoration: none;
  color: #909399;
  font-size: 14px;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #404244;
  font-size: 12px;
}
.footer-bottom a.icp-link {
  color: inherit;
  text-decoration: none;
}
.footer-bottom a.icp-link:hover {
  text-decoration: underline;
}

/* 登录页面样式 */
.login {
  padding: 80px 0;
  background-color: #f5f7fa;
}

.login-card {
  max-width: 400px;
  margin: 0 auto;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  padding: 40px;
}

.login-logo {
  text-align: center;
  margin-bottom: 30px;
}

.login-logo h2 {
  font-size: 24px;
  font-weight: 600;
  color: #303133;
  margin-bottom: 8px;
}

.login-logo p {
  font-size: 14px;
  color: #606266;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  margin-bottom: 0;
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #dcdfe6;
  border-radius: 6px;
  font-size: 16px;
  transition: border-color 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: #3758f9;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-checkbox {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.form-label {
  font-size: 14px;
  color: #606266;
  cursor: pointer;
}

.login-btn {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  background-color: #3758f9;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.login-btn:hover {
  background-color: #409eff;
}

.login-footer {
  text-align: center;
  margin-top: 10px;
}

.free-trial {
  color: #3758f9;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
}

.free-trial:hover {
  color: #409eff;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav {
    height: 56px;
  }
  .nav-menu {
    display: none;
    background-color: #3758f9 !important;
  }
  .nav-item.dropdown .dropdown-toggle::after {
    transition: transform 0.2s ease;
  }
  .nav-item.dropdown.open .dropdown-toggle::after {
    transform: rotate(180deg);
  }
  .nav-logo img {
    height: 28px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
  }
  .nav-item.dropdown .dropdown-menu {
    background-color: transparent !important;
    box-shadow: none !important;
    display: none;
    position: static;
    padding: 8px 0;
    min-width: 100%;
  }
  .nav-item.dropdown.open .dropdown-menu {
    display: block;
  }
  .nav-item.dropdown .dropdown-menu a {
    color: white !important;
  }

  .contact-content {
    display: grid;
    grid-template-columns: 1fr;
  }

  .private-content {
    flex-direction: column;
  }

  .version-detail-item {
    margin-bottom: 30px;
  }

  .footer-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 30px;
  }

  .footer-links ul {
    flex-direction: column;
    gap: 15px;
  }

  .hero-content h2 {
    font-size: 32px;
  }

  .hero-content p {
    font-size: 16px;
  }

  .hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  .hero-buttons .btn {
    margin: 0;
  }

  .features-grid,
  .versions-grid,
  .contact-info {
    display: grid;
    grid-template-columns: 1fr;
  }

  .private-content {
    flex-direction: column;
    text-align: center;
  }
}

/* 智能体对话框样式 */
.agent-dialog {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 400px;
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  display: none;
  flex-direction: column;
  z-index: 1000;
  max-height: 600px;
}

.agent-dialog.show {
  display: flex;
}

/* 对话框头部 */
.agent-dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background-color: #f5f7fa;
  border-radius: 12px 12px 0 0;
  border-bottom: 1px solid #e4e7ed;
}

.agent-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.agent-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.agent-details {
  display: flex;
  flex-direction: column;
}

.agent-name {
  font-size: 16px;
  font-weight: 600;
  color: #303133;
}

.agent-brand {
  font-size: 12px;
  color: #909399;
}

.agent-close-btn {
  background: none;
  border: none;
  font-size: 24px;
  color: #909399;
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.agent-close-btn:hover {
  background-color: #ecf5ff;
  color: #409eff;
}

/* 对话框主体 */
.agent-dialog-body {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.agent-greeting {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.agent-greeting-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  margin-top: 4px;
}

.agent-greeting-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.agent-greeting-text {
  font-size: 14px;
  font-weight: 500;
  color: #303133;
}

.agent-greeting-subtext {
  font-size: 12px;
  color: #606266;
}

.agent-greeting-desc {
  font-size: 12px;
  color: #909399;
  margin-top: 4px;
}

.agent-quick-questions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.agent-quick-question {
  background-color: #f5f7fa;
  border: 1px solid #e4e7ed;
  border-radius: 8px;
  padding: 12px 16px;
  text-align: left;
  cursor: pointer;
  font-size: 14px;
  color: #606266;
  transition: all 0.3s ease;
}

.agent-quick-question:hover {
  background-color: #ecf5ff;
  border-color: #c6e2ff;
  color: #409eff;
}

/* 对话框底部 */
.agent-dialog-footer {
  padding: 20px;
  border-top: 1px solid #e4e7ed;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.agent-input-container {
  display: flex;
  gap: 8px;
  align-items: center;
}

.agent-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid #dcdfe6;
  border-radius: 24px;
  font-size: 14px;
  transition: border-color 0.3s ease;
}

.agent-input:focus {
  outline: none;
  border-color: #409eff;
}

.agent-send-btn {
  background-color: #409eff;
  color: white;
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.3s ease;
}

.agent-send-btn:hover {
  background-color: #66b1ff;
}

.agent-version {
  font-size: 12px;
  color: #909399;
  text-align: center;
}

/* 对话框切换按钮 */
.agent-toggle-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background-color: #3758f9;
  color: white;
  border: none;
  border-radius: 28px;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  z-index: 999;
}

.agent-toggle-btn:hover {
  background-color: #409eff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.agent-toggle-btn img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

/* =========================
   博客卡片视觉优化
   ========================= */

/* 博客列表布局微调 */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

/* 单个博客卡片 */
.blog-post {
  padding: 0;
  background: #ffffff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

/* 悬浮效果 */
.blog-post:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

/* 图片容器 */
.blog-post-image {
  display: flex;
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #f5f7fa;
}

/* 图片裁切 */
.blog-post-image img {
  flex: 1;
  object-fit: cover;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

/* 悬浮时图片微放大 */
.blog-post:hover .blog-post-image img {
  transform: scale(1.05);
}

/* 内容区 */
.blog-post-content {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

/* 日期信息 */
.blog-post-meta {
  font-size: 13px;
  color: #909399;
  margin-bottom: 10px;
}

/* 标题 */
.blog-post-content h3 {
  font-size: 18px;
  line-height: 1.5;
  margin: 0 0 12px;
  font-weight: 600;
}

.blog-post-content h3 a {
  color: #303133;
  text-decoration: none;
  transition: color 0.2s ease;
}

.blog-post-content h3 a:hover {
  color: #409eff;
}

/* 摘要文本 */
.blog-post-content p {
  font-size: 14px;
  line-height: 1.7;
  color: #606266;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3; /* 最多显示3行 */
  -webkit-box-orient: vertical;
  overflow: hidden;
}