:root {
  --primary: #2c3e50;
  --secondary: #f39c12;
  --light: #ecf0f1;
  --dark: #2c3e50;
}

/* 学术风格主容器 */
body {
  font-family: '思源宋体', 'Noto Serif SC', serif;
  line-height: 1.8;
  color: var(--dark);
}

/* 导航栏样式 */
.navbar {
  background: var(--primary)!important;
  border-bottom: 3px solid var(--secondary);
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 1px;
}

/* 时间线样式 */
.timeline {
  position: relative;
  padding-left: 2rem;
  margin: 2rem 0;
}

.timeline-item {
  position: relative;
  padding: 1.5rem;
  margin-bottom: 2rem;
  background: var(--light);
  border-left: 3px solid var(--secondary);
}

/* 荣誉徽章 */
.badge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.honor-badge {
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar-collapse {
    background: var(--primary);
  }
  
  .timeline {
    padding-left: 1rem;
  }
}

/* 打印优化 */
@media print {
  .navbar {
    display: none;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.6;
  }
}