* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

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

header {
  background: linear-gradient(135deg, #0a192f, #172a45);
  color: #fff;
  padding: 20px 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
  font-size: 24px;
  font-weight: bold;
  text-decoration: none;
  color: #64ffda;
}

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

.nav-links li {
  margin-left: 30px;
}

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

.nav-links a:hover {
  color: #64ffda;
}

.cta-buttons {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 5px;
  font-weight: bold;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, #64ffda, #4fd1c5);
  color: #0a192f;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(100, 255, 218, 0.3);
}

.btn-secondary {
  background: transparent;
  color: #64ffda;
  border: 2px solid #64ffda;
}

.btn-secondary:hover {
  background: #64ffda;
  color: #0a192f;
}

.breadcrumb {
  background: #f8f9fa;
  padding: 15px 0;
  font-size: 14px;
  border-bottom: 1px solid #e9ecef;
}

.breadcrumb a {
  color: #64ffda;
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.hero {
  background: linear-gradient(135deg, #0a192f, #172a45);
  color: #fff;
  padding: 100px 0;
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero p {
  font-size: 18px;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.features {
  padding: 80px 0;
  background: #fff;
}

.section-title {
  text-align: center;
  font-size: 36px;
  margin-bottom: 60px;
  color: #0a192f;
}

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

.feature-card {
  background: #f8f9fa;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.feature-card h3 {
  font-size: 24px;
  margin-bottom: 20px;
  color: #0a192f;
}

.news-section {
  padding: 80px 0;
  background: #f5f5f5;
}

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

.news-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.news-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.news-content {
  padding: 20px;
}

.news-date {
  font-size: 14px;
  color: #6c757d;
  margin-bottom: 10px;
}

.news-card h3 {
  font-size: 20px;
  margin-bottom: 15px;
  color: #0a192f;
}

.news-card p {
  margin-bottom: 20px;
  color: #6c757d;
}

.news-card a {
  color: #64ffda;
  text-decoration: none;
  font-weight: 500;
  display: inline-block;
  margin-top: 10px;
}

.news-card a:hover {
  text-decoration: underline;
}

.products-section {
  padding: 80px 0;
  background: #fff;
}

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

.product-card {
  background: #f8f9fa;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.product-card h3 {
  font-size: 24px;
  margin-bottom: 20px;
  color: #0a192f;
}

.about-section {
  padding: 80px 0;
  background: #f5f5f5;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 36px;
  margin-bottom: 30px;
  color: #0a192f;
}

.about-text p {
  margin-bottom: 20px;
  line-height: 1.8;
}

.contact-section {
  padding: 80px 0;
  background: #fff;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: #f8f9fa;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #0a192f;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ced4da;
  border-radius: 5px;
  font-size: 16px;
}

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

footer {
  background: #0a192f;
  color: #fff;
  padding: 60px 0 30px;
}

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

.footer-column h3 {
  font-size: 18px;
  margin-bottom: 20px;
  color: #64ffda;
}

.footer-column p,
.footer-column li {
  margin-bottom: 10px;
  color: #a8b2d1;
}

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

.footer-column a {
  color: #a8b2d1;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-column a:hover {
  color: #64ffda;
}

.footer-bottom {
  border-top: 1px solid #172a45;
  padding-top: 30px;
  text-align: center;
  color: #a8b2d1;
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }
  
  .nav-links {
    margin-top: 20px;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .nav-links li {
    margin: 0 15px;
  }
  
  .hero h1 {
    font-size: 36px;
  }
  
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 200px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 28px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .feature-card,
  .product-card {
    padding: 30px;
  }
  
  .contact-form {
    padding: 30px;
  }
}

/* 新闻详情页样式 */
.news-detail {
  padding: 60px 0;
  background: #fff;
}

.news-detail-content {
  max-width: 800px;
  margin: 0 auto;
}

.news-detail h1 {
  font-size: 36px;
  margin-bottom: 30px;
  color: #0a192f;
}

.news-detail-meta {
  font-size: 14px;
  color: #6c757d;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid #e9ecef;
}

.news-detail-content p {
  margin-bottom: 20px;
  line-height: 1.8;
}

.news-detail-content img {
  max-width: 100%;
  height: auto;
  margin: 30px 0;
  border-radius: 10px;
}

/* 网站地图样式 */
.sitemap {
  padding: 60px 0;
  background: #f5f5f5;
}

.sitemap-content {
  max-width: 800px;
  margin: 0 auto;
}

.sitemap h1 {
  font-size: 36px;
  margin-bottom: 40px;
  color: #0a192f;
  text-align: center;
}

.sitemap ul {
  list-style: none;
  margin-bottom: 30px;
}

.sitemap li {
  margin-bottom: 10px;
}

.sitemap a {
  color: #64ffda;
  text-decoration: none;
  font-size: 16px;
}

.sitemap a:hover {
  text-decoration: underline;
}

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(100, 255, 218, 0.3);
  border-radius: 50%;
  border-top-color: #64ffda;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: #64ffda;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #4fd1c5;
}

/* 高亮效果 */
.highlight {
  color: #64ffda;
  font-weight: 500;
}

/* 卡片阴影效果 */
.card-shadow {
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.card-shadow:hover {
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}