/* 基础样式 */
body {
  font-family: 'Lato', sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

/* 标题样式 */
h1, h2, h3 {
  color: #2c3e50;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}

/* 导航栏 */
.navbar {
  background-color: #2c3e50;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 卡片样式 */
.panel {
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

/* 时间线样式 */
.timeline {
  border-left: 4px solid #2c3e50;
  padding-left: 2rem;
  margin-left: 1rem;
}

/* 联系表单 */
.form input, .form textarea {
  width: 100%;
  padding: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.form button {
  background-color: #2c3e50;
  color: white;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .columns {
    flex-direction: column;
  }
}