/* 导航下部 */
.desc-left-nav-down {
  display: flex;
  padding: 20px;
  gap: 25px;
  margin-left: 30px;
  width: calc(100% - 50px);
}


.desc-left-nav-content {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-top: -50px;
  flex: 1;
  min-width: 0; /* 允许flex项目收缩 */
}

/* 子导航标题样式 - 放大一号并加粗 */
.desc-left-content-item[href*="content2-"],
.desc-left-content-item[href*="content3-"] {
  font-size: 16px;
  font-weight: bold;
}