/* 通用顶部导航 */
.header {background: #fff; padding: 12px 15px;display: flex;align-items: center;position: sticky;top: 0;z-index: 100;border-bottom: 1px solid #f2f2f2;background-image: url(/template/fuyang/IHC/png2024.png);
  background-size: cover;background-repeat: no-repeat;background-color: rgba(0, 0, 0, 0.5);}
  .back-btn {display: flex;align-items: center;text-decoration: none;margin-right: 10px;padding: 5px 0;}
  .header-title {font-size: 18px; font-weight: 600; color: #ffffff;}
  .news-b {max-width: 800px;margin: 0 auto;min-height: 100vh;}
/* 通用顶部导航结束 */