/* 移动端字体优化 */
@media (max-width: 768px) {
  /* 优化字体渲染 */
  body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: "liga" 1, "kern" 1;
  }
  
  /* 移动端字体大小优化 */
  .nav-link {
    font-size: 14px !important;
  }
  
  .hero-title {
    font-size: 2.5rem !important;
    line-height: 1.2 !important;
  }
  
  .hero-subtitle {
    font-size: 1.1rem !important;
    line-height: 1.4 !important;
  }
  
  .section-title {
    font-size: 1.8rem !important;
    line-height: 1.3 !important;
  }
  
  .section-subtitle {
    font-size: 1rem !important;
    line-height: 1.5 !important;
  }
  
  .product-title {
    font-size: 14px !important;
    line-height: 1.35 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    height: 32px !important;
    padding: 0 0px !important;
  }
  
  .news-title {
    font-size: 1rem !important;
    line-height: 1.4 !important;
  }
  
  .contact-btn {
    font-size: 13px !important;
  }
  
  .lang-btn {
    font-size: 12px !important;
  }
}

/* 超小屏幕字体优化 */
@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem !important;
  }
  
  .hero-subtitle {
    font-size: 1rem !important;
  }
  
  .section-title {
    font-size: 1.5rem !important;
  }
  
  .nav-link {
    font-size: 13px !important;
  }
  
  .contact-btn {
    font-size: 12px !important;
  }
}

/* 平板端字体优化 */
@media (min-width: 769px) and (max-width: 1024px) {
  .hero-title {
    font-size: 3rem !important;
  }
  
  .hero-subtitle {
    font-size: 1.2rem !important;
  }
  
  .section-title {
    font-size: 2rem !important;
  }
  
  .nav-link {
    font-size: 15px !important;
  }
}