:root{
  --brand:#0b5eb8;
  --brand-900:#0a4590;
  --gold:#c8a86b;
}
.container{
  max-width: 1100px;
}
.pattern-bg{
  background-image: radial-gradient(rgba(12,69,150,0.06) 1px, transparent 1px);
  background-size: 18px 18px;
}
.herb-bg{
  background-image: url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
}

/* 平滑滚动 */
html{
  scroll-behavior: smooth;
}

/* 导航链接样式 */
.nav-link{
  position: relative;
  transition: color 0.3s ease;
}
.nav-link::after{
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--brand);
  transition: width 0.3s ease;
}
.nav-link:hover::after,
.nav-link.active::after{
  width: 100%;
}

/* 移动端优化 */
@media (max-width: 640px) {
  /* 确保容器内边距 */
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  /* 新闻卡片标题行高优化 */
  .line-clamp-2 {
    line-height: 1.4;
  }
  
  /* 防止长文本溢出 */
  h1, h2, h3 {
    word-break: break-word;
  }
}