/* 小于 1400 的适配 */
@media screen and (max-width: 1537px) {
  .header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 99;
    height: calc(80px * 0.857);
    transition: all .5s;
  }

  .header:hover {
    background: rgba(0,0,0,.8);
  }

  .header .header-wrap { /* 修正原拼写错误 heaer-wrap → header-wrap */
    position: relative;
    margin: 0 auto;
    width: 100%;
    max-width: calc(1400px * 0.857);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .header .cowain-icon {
    position: absolute;
    left: 0;
    top: calc(24px * 0.857);
    width: calc(131px * 0.857);
    height: calc(34px * 0.857);
  }

  .header .cowain-icon img {
    width: 100%;
    height: 100%;
  }

  .header .header-wrap .navigation {
    padding-left: calc(270px * 0.857);
    height: calc(80px * 0.857);
    display: flex;
    justify-content: flex-start;
    align-items: center;
  }

  .header .header-wrap .navigation .nav-item {
    position: relative;
    margin-right: calc(60px * 0.857);
    font-size: calc(18px * 0.857);
    cursor: pointer;
    height: 100%;
    display: flex;
    align-items: center;
  }

  .header .header-wrap .navigation .nav-item .sub-list {
    padding: calc(10px * 0.857) 0;
    overflow: hidden;
    position: fixed;
    top: calc(80px * 0.857);
    left: 50%;
    transform: translate(-50%);
    transition: all .5s;
    width: 140vw; /* 注意：vw单位也按同样比例计算 */
    background: rgba(0,0,0,.8);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    visibility: hidden;
    opacity: 0
  }
  .header .header-wrap .navigation .nav-item .sub-list-children{
    padding-top:  calc(10px * 0.857);
  }

  .header .header-wrap .navigation .nav-item li {
    min-width: calc(100px * 0.857);
    padding: 0 calc(10px * 0.857);
  }

  .header .header-wrap .navigation .nav-item a{
    padding: calc(10px * 0.857);
    display: block;
    color: #ffff;
  }
  .header .header-wrap .navigation .nav-item.active::before {
    position: absolute;
    left: 0;
    bottom: calc(10px * 0.857);
    content: '';
    width: 100%;
    height: calc(2px * 0.857);
    background: #1f85e3;
  }


  .header .header-wrap .navigation .nav-item .sub-list .sub-list-item {
    font-size: calc(14px * 0.857);
    font-weight: bold;
    display: block;
    padding: calc(10px * 0.857);
    color: white;
    /* color: #1f85e3; */
    /* border-bottom: calc(2px * 0.857) solid #fff; */
  }

  .header .header-wrap .navigation .nav-item .sub-list .sub-list-children li {
    position: relative;
  }

  .header .header-wrap .navigation .nav-item .sub-list .sub-list-children li::before {
    position: absolute;
    content: '';
    width: calc(4px * 0.857);
    height: calc(4px * 0.857);
    border-radius: 50%;
    background: #1f85e3;
    left: 0;
    top: 50%;
    transform: translate(0, -50%);
  }

  .header .header-wrap .navigation .nav-item .sub-list .sub-list-children-item {
    padding: calc(10px * 0.857) 0;
    font-size: calc(12px * 0.857);
    color:#ddd;
  }

  .header .header-wrap .navigation .nav-item .sub-list .sub-list-children-item:hover {
    color: #50b3eb;
    transition: all .3s;
    letter-spacing: calc(1px * 0.857);
  }

  .header .header-wrap .navigation .nav-item:hover .sub-list {
    visibility: visible;
    opacity: 1;
    background: rgba(0,0,0,.8);
  }


  .header .header-wrap a {
    white-space: nowrap;
  }

  .header .header-wrap .right {
    display: flex;
    justify-content: flex-end;
    align-items: center;
  }

  .header .header-wrap .right .lang {
    display: flex;
    justify-content: center;
    align-items: center;

  }
  .header .header-wrap .right .lang img {
    margin-right: calc(17px * 0.857);
    width: calc(32px * 0.857);
    height: calc(32px * 0.857);
    cursor: pointer;
  }

  .header .header-wrap .right .search {
    margin-right: calc(42px * 0.857);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .header .header-wrap .right .search input {
    margin-right: calc(5px * 0.857);
    padding: 0 calc(10px * 0.857);
    outline: none;
    border: none;
    width: calc(149px * 0.857);
    height: calc(30px * 0.857);
    background: #ebebeb;
    border-radius: calc(20px * 0.857);
  }

  .header .header-wrap .right .search .icon {
    width: calc(15px * 0.857);
    height: calc(15px * 0.857);
    vertical-align: top;
    cursor: pointer;
  }
}

/** 大于1400 的适配 **/
@media screen and (min-width: 1537px) {
  .header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 99;
    height: 80px;
    transition: all .5s
  }

  .header:hover {
    background: rgba(0,0,0,.8);
  }

  .header .header-wrap {
    position: relative;
    margin: 0 auto;
    width: 100%;
    max-width: 1400px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .header .cowain-icon {
    position: absolute;
    left: 0;
    top: 24px;
    width: 131px;
    height: 34px;
  }

  .header .cowain-icon img {
    width: 100%;
    height: 100%;
  }

  .header .header-wrap .navigation {
    padding-left: 270px;
    height: 80px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
  }

  .header .header-wrap .navigation .nav-item {
    position: relative;
    margin-right: 60px;
    font-size: 18px;
    cursor: pointer;
    height: 100%;
    display: flex;
    align-items: center;
  }

  .header .header-wrap .navigation .nav-item .sub-list {
    padding: 10px 0;
    overflow: hidden;
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translate(-50%);
    transition: all .5s;
    width: 140vw;
    background: rgba(0,0,0,.8);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    visibility: hidden;
    opacity: 0
  }

  .header .header-wrap .navigation .nav-item .sub-list-children{
    padding-top: 10px;
  }
  .header .header-wrap .navigation .nav-item li {
    min-width: 100px;
    padding: 0 10px;
  }

  .header .header-wrap .navigation .nav-item a{
    padding: 10px;
    display: block;
    color: #ffff;
  }
  .header .header-wrap .navigation .nav-item.active::before {
    position: absolute;
    left: 0;
    bottom: 10px;
    content: '';
    width: 100%;
    height: 2px;
    background: #1f85e3;
  }


  .header .header-wrap .navigation .nav-item .sub-list .sub-list-item {
    font-size: 14px;
    font-weight: bold;
    display: block;
    padding: 10px;
    /* color: #1f85e3; */
    color:white;
    /* border-bottom: 2px solid #fff; */
    /* border-bottom: 2px solid #1f85e3; */
  }

  .header .header-wrap .navigation .nav-item .sub-list .sub-list-children li {
    position: relative;
  }

  .header .header-wrap .navigation .nav-item .sub-list .sub-list-children li::before {
    position: absolute;
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #1f85e3;
    left: 0;
    top: 50%;
    transform: translate(0, -50%);
  }

  .header .header-wrap .navigation .nav-item .sub-list .sub-list-children-item {
    padding: 10px 0;
    font-size: 12px;
    color:#ddd;
  }

  .header .header-wrap .navigation .nav-item .sub-list .sub-list-children-item:hover {
    color: #50b3eb;
    transition: all .3s;
    letter-spacing: 1px;
  }

  .header .header-wrap .navigation .nav-item:hover .sub-list {
    visibility: visible;
    opacity: 1;
    background: rgba(0,0,0,.8);
  }


  .header .header-wrap a {
    white-space: nowrap;
  }

  .header .header-wrap .right {
    display: flex;
    justify-content: flex-end;
    align-items: center;
  }

  .header .header-wrap .right .lang {
    display: flex;
    justify-content: center;
    align-items: center;

  }
  .header .header-wrap .right .lang img {
    margin-right: 17px;
    width: 32px;
    height: 32px;
    cursor: pointer;
  }

  .header .header-wrap .right .search {
    margin-right: 42px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .header .header-wrap .right .search input {
    margin-right: 5px;
    padding: 0 10px;
    outline: none;
    border: none;
    width: 149px;
    height: 30px;
    background: #ebebeb;
    border-radius: 20px;
  }

  .header .header-wrap .right .search .icon {
    width: 15px;
    height: 15px;
    vertical-align: top;
    cursor: pointer;
  }
}