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

body {
  font-family: 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

/* 导航栏样式 */
nav {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 15px 5%;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 40px;
  width: auto;
}

.main-menu {
  display: flex;
  list-style: none;
  gap: 40px;
  align-items: center;
}

.main-menu a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s ease;
}

.main-menu a:hover {
  color: #4CAF50;
}

.dropdown {
  position: relative;
}

.dropdown-content {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: white;
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  padding: 30px;
  display: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  min-width: 900px;
}

.dropdown:hover .dropdown-content {
  display: grid;
}

.submenu h4 {
  color: #4CAF50;
  margin-bottom: 15px;
  font-size: 1.1em;
}

.submenu ul {
  list-style: none;
}

.submenu li {
  margin-bottom: 8px;
}

.submenu a {
  color: #666;
  font-size: 0.95em;
}

.submenu a:hover {
  color: #4CAF50;
}

.divider {
  width: 1px;
  background: #e0e0e0;
}

/* 封面样式 */
.page-content {
  padding-top: 70px;
}

.cover-container {
  position: relative;
  height: 500px;
  overflow: hidden;
}

.cover-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7);
}

.banner-title {
  position: absolute;
  top: 50%;
  left: 10%;
  transform: translateY(-50%);
  color: white;
  font-size: 3.5em;
  font-weight: 700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
  z-index: 2;
}

/* 新闻内容样式 */
.news-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  background: white;
  margin-top: 20px;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.news-title {
  font-size: 2.2em;
  font-weight: 700;
  color: #333;
  margin-bottom: 30px;
  line-height: 1.4;
  border-left: 4px solid #ff4757;
  padding-left: 20px;
}

.news-body {
  font-size: 1.1em;
  line-height: 1.8;
  color: #444;
}

.news-body p {
  margin-bottom: 20px;
  text-align: justify;
}

.news-body h3 {
  font-size: 1.5em;
  font-weight: 600;
  color: #ff4757;
  margin: 35px 0 20px 0;
  padding-bottom: 8px;
  border-bottom: 2px solid #ffe8e8;
}

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

.news-body li {
  margin-bottom: 12px;
  line-height: 1.7;
}

.news-body strong {
  color: #333;
  font-weight: 600;
}

.source {
  color: #888;
  font-size: 0.95em;
  font-style: italic;
  margin: 10px 0;
  text-align: right;
}

.news-image {
  margin: 25px 0;
  text-align: center;
}

.content-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  margin-bottom: 10px;
}

.image-caption {
  font-size: 0.9em;
  color: #666;
  font-style: italic;
  margin-top: 8px;
}

.news-gallery {
  margin: 35px 0;
}

.news-gallery h4 {
  color: #333;
  margin-bottom: 15px;
  font-size: 1.2em;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
  margin-top: 15px;
}

.gallery-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 6px;
  transition: transform 0.3s ease;
}

.gallery-image:hover {
  transform: scale(1.05);
}

.disclaimer {
  margin-top: 40px;
  padding: 25px;
  background: #fff3cd;
  border: 1px solid #ffeaa7;
  border-radius: 6px;
  font-size: 0.95em;
  color: #856404;
}

.disclaimer p {
  margin-bottom: 8px;
}

.disclaimer strong {
  color: #856404;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .news-content {
    margin: 10px;
    padding: 30px 15px;
  }
  
  .news-title {
    font-size: 1.8em;
    padding-left: 15px;
  }
  
  .news-body {
    font-size: 1em;
  }
  
  .news-body h3 {
    font-size: 1.3em;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
}