/* 顶部横向导航 - 桌面端 */
@media (min-width: 992px) {
  .tonav,
  .header .menu {
    display: none !important;
  }

  body.has-top-nav .menu-box,
  body.has-top-nav .menu-pop {
    display: none !important;
  }

  .myheader.has-top-nav,
  .header.has-top-nav {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
  }

  .myheader.has-top-nav {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .myheader.has-top-nav .title {
    margin: 0 24px 0 0;
    padding-left: 0;
    flex: 0 0 auto;
  }

  .myheader.has-top-nav .title img {
    height: 80px;
  }

  .myheader.has-top-nav .top-nav {
    flex: 1 1 auto;
    min-width: 0;
  }

  .myheader.has-top-nav .search,
  .myheader.has-top-nav .language {
    position: static;
    flex: 0 0 auto;
    margin: 0;
    transform: none;
    top: auto;
    right: auto;
  }

  .myheader.has-top-nav .search {
    margin-right: 20px;
    width: 30px;
    height: 30px;
  }

  .myheader.has-top-nav .search a {
    display: block;
    width: 30px;
    height: 30px;
    line-height: 0;
  }

  .myheader.has-top-nav .search img {
    width: 30px;
    height: 30px;
    display: block;
  }

  .header.has-top-nav {
    padding: 20px 30px 20px 0;
    background: #fff;
  }

  .header.has-top-nav .container {
    flex: 0 0 auto;
    width: auto;
    text-align: left;
    margin: 0;
    padding: 0 24px 0 8.3%;
  }

  .header.has-top-nav .container .logo {
    margin: 0;
    height: 80px;
  }

  .header.has-top-nav .top-nav {
    flex: 1 1 auto;
    min-width: 0;
  }

  .header.has-top-nav .search,
  .header.has-top-nav .language {
    position: static;
    flex: 0 0 auto;
    margin: 0;
    top: auto;
    right: auto;
    transform: none;
  }

  .header.has-top-nav .search {
    margin-right: 20px;
    width: auto;
    height: auto;
  }

  .header.has-top-nav .search a {
    display: block;
    line-height: 0;
  }

  .header.has-top-nav .search img {
    width: 30px;
    height: 30px;
    display: block;
  }

  /* 子页面白底头部：导航深色文字 */
  .header.has-top-nav .top-nav > ul > li > a,
  .header.has-top-nav .top-nav > ul > li > span.nav-label {
    color: #03030b;
  }

  .header.has-top-nav .top-nav > ul > li > a:hover,
  .header.has-top-nav .top-nav > ul > li:hover > span.nav-label {
    color: #17a2ea;
    opacity: 1;
  }

  .header.has-top-nav .language {
    color: #03030b;
  }

  .header.has-top-nav.brandHeader {
    background: #040410;
  }

  .header.has-top-nav.brandHeader .top-nav > ul > li > a,
  .header.has-top-nav.brandHeader .top-nav > ul > li > span.nav-label,
  .header.has-top-nav.brandHeader .language {
    color: #fff;
  }

  .header.has-top-nav.fix {
    background: rgba(3, 3, 11, 0.92);
  }

  .header.has-top-nav.fix .top-nav > ul > li > a,
  .header.has-top-nav.fix .top-nav > ul > li > span.nav-label,
  .header.has-top-nav.fix .language {
    color: #fff;
  }

  .top-nav > ul {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    list-style: none;
    margin: 0;
    padding: 0;
    justify-content: center;
    gap: 1rem;
  }

  .top-nav > ul > li {
    position: relative;
  }

  .myheader.has-top-nav .top-nav > ul > li > a,
  .myheader.has-top-nav .top-nav > ul > li > span.nav-label {
    color: #fff;
  }

  .top-nav > ul > li > a,
  .top-nav > ul > li > span.nav-label {
    display: block;
    position: relative;
    padding: 0 14px;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    line-height: 80px;
    white-space: nowrap;
    cursor: pointer;
  }

  /* 参照小鹏：父级悬停下划线 */
  .top-nav > ul > li > a::after,
  .top-nav > ul > li > span.nav-label::after {
    content: '';
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 22px;
    height: 2px;
    background: #17a2ea;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.2s ease;
  }

  .top-nav > ul > li:hover > a::after,
  .top-nav > ul > li:hover > span.nav-label::after {
    transform: scaleX(1);
  }

  .top-nav > ul > li > a:hover,
  .top-nav > ul > li:hover > span.nav-label {
    opacity: 1;
  }

  /* 参照小鹏：白底圆角下拉 + 阴影 */
  .top-nav .sub-menu {
    position: absolute;
    top: calc(100% - 8px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 180px;
    background: #fff;
    border-radius: 4px;
    display: none;
    z-index: 1002;
    padding: 12px 0;
    list-style: none;
    margin: 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  }

  .top-nav > ul > li:hover .sub-menu {
    display: block;
  }

  .top-nav > ul > li:hover .sub-menu.sub-menu-cols {
    display: flex;
  }

  .top-nav .sub-menu.sub-menu-cols {
    min-width: 360px;
    padding: 12px 8px;
  }

  .top-nav .sub-menu-cols > .sub-menu-col {
    flex: 1 1 50%;
    min-width: 160px;
    list-style: none;
    margin: 0;
    padding: 0 4px;
  }

  .top-nav .sub-menu-cols .sub-menu-col > ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .top-nav .sub-menu-cols .sub-menu-col > ul > li {
    padding: 0;
  }

  .top-nav .sub-menu li {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .top-nav .sub-menu a {
    display: block;
    color: #333;
    background: transparent;
    font-size: 14px;
    font-weight: normal;
    line-height: 1.4;
    padding: 10px 24px;
    margin: 0;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.2s ease;
  }

  .top-nav .sub-menu a.tit {
    background: transparent;
    color: #03030b;
    font-weight: bold;
    padding: 10px 24px;
    margin: 0;
  }

  .top-nav .sub-menu a:hover {
    color: #17a2ea;
    background: transparent;
    opacity: 1;
  }

  /* 白底头/品牌头下，下划线与文字色保持协调 */
  .header.has-top-nav .top-nav > ul > li > a::after,
  .header.has-top-nav .top-nav > ul > li > span.nav-label::after {
    background: #17a2ea;
  }
}

@media (max-width: 991px) {
  .top-nav {
    display: none !important;
  }
}

/* 移动端折叠菜单内容 */
@media (max-width: 991px) {
  body.has-top-nav .menu-box .menu-aside {
    display: none !important;
  }

  body.has-top-nav .menu-box .menu-con ul li {
    display: block !important;
  }

  body.has-top-nav .menu-box .menu-con ul li .col {
    width: 100%;
    float: none;
  }

  body.has-top-nav .menu-box .menu-con ul li .col.hidden-lg,
  body.has-top-nav .menu-box .menu-con ul li .col.hidden-md {
    display: block !important;
  }
}