header {
  position: fixed;
  left: 0;
  top: 0;

  width: 100%;
  padding: 0 5%;
  box-sizing: border-box;
  height: 0.4688rem;
  z-index: 999;
  color: #fff;
}

.header {
  width: 100%;
}

.logo img {
  max-width: 100%;
  height: 0.1458rem;
}

.dropDown .item p {
  border-left: 1px solid #dcdcdc;
  padding: 0.0104rem 0.0781rem 0.1042rem 0.0781rem;
  color: #333;
}

@media (min-width: 1200px) {
  .nav li {
    padding: 0 1.5vw;
    height: 0.4688rem;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav li:nth-child(2) .a1,
  .nav li:nth-child(3) .a1 {
    cursor: text;
  }

  .nav li.cur .a1,
  .nav li:hover .a1 {
    color: #21989f;
  }

  header .a1 {
    color: #fff;
  }

  header:hover,
  header.on1,
  header.on {
    background: #fff;
    color: #333;
  }

  .logo2,
  header:hover .logo1,
  header.on1 .logo1,
  header.on .logo1 {
    display: none;
  }

  header:hover .logo2,
  header.on1 .logo2,
  header.on .logo2 {
    display: block;
  }

  header:hover .a1,
  header.on1 .a1,
  header.on .a1 {
    color: #333;
  }

  .dropDown {
    position: absolute;
    left: 0;
    width: 100%;
    top: 0.4688rem;
    background: #fcfcfb;
    box-sizing: border-box;
    height: 0;
    overflow: hidden;
    pointer-events: none;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    padding: 0 6%;
    transition:
      height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
      padding 0.35s ease;
  }

  .dropDown.on {
    pointer-events: auto;
    padding: 5% 6% 0 6%;
  }

  /* 悬停桥梁 — 防止鼠标从导航项移动到下拉菜单时出现间隙闪烁 */
  .dropDown::before {
    content: "";
    position: absolute;
    left: 0;
    top: -10px;
    width: 100%;
    height: 10px;
    background: transparent;
  }

  .dropDown .a2 {
    width: 33.3333%;
    border-left: 1px solid #dcdcdc;
    padding: 0.0104rem 0.0417rem;
    box-sizing: border-box;
    margin-bottom: 0.2344rem;
  }

  .dropDown .a2:hover {
    color: #21989f;
  }

  .dropDown .item {
    width: 33.333%;
    box-sizing: border-box;
    margin-bottom: 0.2344rem;
  }

  .dropDown .item .a3 {
    border-left: 1px solid #dcdcdc;
    width: 100%;
    margin: 0;
    font-size: .0833rem;
    background: url(../images/cr.png) no-repeat 0.0781rem center;
    background-size: 0.026rem 0.026rem;
    padding-left: 0.1823rem;
    line-height: 2.25;
  }

  .dropDown .item .a3:hover {
    background: url(../images/cr-atv.png) no-repeat 0.0781rem center;
    background-size: 0.026rem 0.026rem;
  }

  .nav-tabs {
    border-bottom: 1px solid #ddd;
    margin-bottom: 0.2083rem;
  }

  .nav-tabs .tit {
    padding: 0 0.1563rem;
    line-height: 3;
    cursor: pointer;
    position: relative;
  }

  .nav-tabs .tit::after {
    position: absolute;
    left: 50%;
    bottom: 0;
    content: "";
    width: 0;
    height: 0.0156rem;
    background: #21989f;
    transform: translateX(-50%);
  }

  .nav-tabs .tit.cur::after {
    width: 0.1615rem;
  }

  /* tab 内容面板：默认隐藏，选中项显示 */
  .tabs-item .con {
    display: none;
  }
  .tabs-item .con.cur {
    display: block;
  }
}

.icon-sousuo {
  font-size: 0.1146rem !important;
  margin-right: 0.1563rem;
  cursor: pointer;
}

.lang {
  width: 0.7552rem;
  height: 0.2083rem;
  background: transparent;
  border-radius: 0.2604rem;
  transition: 0.5s;
}

.lang:hover {
  background: #21989f;
  color: #fff !important;
}

.lang-qh {
  line-height: 0.2083rem;
  padding: 0 0.0521rem;
  cursor: pointer;
  box-sizing: border-box;
}

.icon-duoyuyan {
  font-size: 0.125rem !important;
}

.icon-right-arrow {
  font-size: 0.1042rem !important;
  transition: 0.5s;
}

.lang:hover .icon-right-arrow {
  transform: rotate(90deg);
}

.subLan {
  position: absolute;
  left: 0;
  top: 0.3125rem;
  width: 100%;
  padding: 0.0521rem;
  color: #fff;
  border-radius: 0.0521rem;
  background: #21989f;
  visibility: hidden;
  transition: 0.2s;
  box-sizing: border-box;
}

.subLan a {
  display: block;
  line-height: 0.1875rem;
  text-align: center;
  color: #fff;
}

.subLan a:hover {
  background: #fff;
  color: #000;
}

.lang:hover .subLan {
  top: 0.2604rem;
  visibility: visible;
}

.searchBox {
  position: absolute;
  height: 100%;
  width: 100%;
  background: #fff;
  left: 0;
  top: -100%;
  z-index: 1000;
  transition: 0.5s;
}

.searchBox.on {
  top: 0;
}

.search-wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.search-input {
  border: 1px solid #d8d8d9;
  width: calc(100% - 60px);
  border-radius: 0.0521rem;
  padding: 8px 0 8px 8px;
  box-sizing: border-box;
}

.search-input input {
  height: 25px;
  width: calc(100% - 60px);
  font-size: 16px;
}

.search-input a {
  width: 50px;
  border-radius: 10px;
}

.search-input a img {
  margin: 0 auto;
  max-width: 100%;
  height: 23px;
}

.search-close {
  width: 40px;
}

.search-close a img {
  margin: 0 auto;
  max-width: 100%;
  height: 24px;
}

@media (max-width: 1200px) {
  header {
    background: #fff;
    height: 60px;
    padding: 2%;
    border-bottom: 1px solid #eaeaea;
  }

  .mob-nav {
    display: block;
  }

  .logo img {
    height: 16px;
  }

  .navList {
    position: absolute;
    left: 0;
    top: 60px;
    background: #fcfcfb;
    height: calc(100vh - 60px);
    width: 100%;
    padding: 8px 15px;
    box-sizing: border-box;
    overflow-y: auto;
    display: none;
  }

  .logo1 {
    display: none;
  }

  .nav {
    display: block;
  }

  .nav .a1 {
    font-size: 18px;
    line-height: 48px;
  }

  .lang {
    display: none;
  }

  .icon-sousuo {
    color: #333;
  }

  .nav li {
    border-bottom: 1px solid #d8d7d7;
  }

  .navList.on {
    display: block;
  }

  .search-icon {
    margin-right: 10px;
  }

  .search-wrap {
    max-width: 94%;
  }

  .search-input {
    padding: 3px 10px;
  }

  .search-input input {
    height: 26px;
  }

  .icon-sousuo {
    font-size: 24px !important;
  }

  .search-close a img {
    height: 18px;
  }

  .nav-tabs {
    flex-wrap: wrap;
  }

  .nav-tabs .tit {
    font-weight: bold;
    font-family: "SquareBold";
    padding: 0;
    border: none;
    color: #21989f;
    margin-right: 20px;
    margin-bottom: 20px;
  }

  .tabs-item .con {
    padding: 3% 0;
  }

  .dropDown .item .link,
  .dropDown {
    padding: 8px 0;
  }

  .dropDown .item p {
    font-family: "SquareBold";
    padding: 0;
    margin: 0;
    border: none;
  }

  .dropDown .a3,
  .dropDown .a2 {
    margin-right: 20px;
    line-height: 42px;
  }

  .dropDown .item {
    width: 100%;
  }

  .dropDown .item .link {
    display: flex;
    flex-wrap: wrap;
  }
}