.default-layout {
  min-height: 100vh;
  width: 100%;
  background: url('/res/images/ist/bottom.png') no-repeat;
  background-position: bottom center;
  background-size: 100% auto;
}

.header {
  position: sticky;
  top: -111px;
  width: 100%;
  height: 160px;
  z-index: 99;
  background-size: 100% 100%;
  background-color: #fff;
  background-image: url(/res/images/ist/head_back2.png);
  display: flex;
  flex-direction: column;
}

.header .header_top {
  width: 100%;
  height: 50%;
  flex: 1;
  display: flex;
  justify-content: space-between;
}

.header .header_cont {
  margin: 0 auto;
  width: 1200px;
}

.header .flex_btw {
  height: 69px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 15px;
}

.nav_tools {
  display: flex;
  align-items: center;
}

.nav_tools .user_box {
  display: flex;
  align-items: center;
  padding: 0 19px 0 14px;
  height: 32px;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.5);
  line-height: 32px;
  color: #666;
  font-size: 14px;
}

.nav_tools .user_box.login:hover {
  color: #2584ff;
  cursor: pointer;
}

.nav_tools .user_box.login:hover .user_icon {
  background-image: url("/res/images/ist/user_on.png");
}

.nav_tools .user_box .user_box_left {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.nav_tools .user_box .user_box_left:hover {
  color: #2584ff;
}

.nav_tools .user_box .user_box_left:hover .user_icon {
  background-image: url("/res/images/ist/user_on.png");
}

.nav_tools .user_box .user_icon {
  cursor: pointer;
  width: 21px;
  height: 21px;
  background-image: url("/res/images/ist/user.png");
  background-size: 100% 100%;
}

.nav_tools .user_box .user_name {
  cursor: pointer;
  line-height: 32px;
  margin-left: 8px;
}

.nav_tools .user_box .user_line {
  margin: 0 6px;
  line-height: 32px;
  margin-top: -2px;
}

.nav_tools .user_box .user_logout {
  cursor: pointer;
  line-height: 32px;
}

.nav_tools .user_box .user_logout:hover {
  color: #2584ff;
}

.nav_tools .search_btn {
  width: 74px;
  height: 32px;
  line-height: 32px;
  border-radius: 32px;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #2584ff;
  color: #fff;
  cursor: pointer;
  margin-left: 18px;
}

.nav_tools .search_btn .search_btn_icon {
  margin-right: 3px;
  width: 16px;
  height: 15px;
  background-image: url("/res/images/ist/search.png");
  background-size: 100% 100%;
}

.header_bottom {
  width: 100%;
  height: 47px;
  background: rgba(37, 132, 255, .86);
  border-bottom: 1px solid #28c1ff;
  box-sizing: content-box;
}

.header_bottom .header_cont {
  height: 100%;
}

.nav_icon {
  display: none;
  width: 32px;
  height: 32px;
  background-image: url("/res/images/ist/logo_white.png");
  background-size: 100% 100%;
  position: absolute;
  left: -32px;
  top: 8px;
}

.is_scroll .nav_icon {
  display: block;
}

.nav {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: space-between;
  box-sizing: border-box;
  align-items: center;
  position: relative;
}

.nav_item {
  height: 100%;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.nav_item .nav_btn {
  height: 32px;
  line-height: 32px;
  text-align: center;
  border-radius: 32px;
  box-sizing: border-box;
  position: relative;
  font-size: 20px;
  color: #ffffff;
  min-width: 86px;
  padding: 0 15px;
  transition: all 0.2s;
}

    .nav_item:hover .nav_ul {
        /*display: block;*/
        display: grid;
    }

    .nav_item.on .nav_btn {
        color: #2584ff;
        background: #ffffff;
    }

.nav_ul {
    display: none;
    position: absolute;
    min-width: 213px;
    padding: 10px 20px;
    background-color: #fff;
    text-align: left;
    top: 40px;
    left: 50%;
    transform: translate(-50%, 0);
    box-shadow: 2px 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    border-radius: 4px;
    background: linear-gradient(0deg, #E3FDFF, #FFFFFF);
    grid-template-columns: 1fr 1fr;
    /*  display: none;
  position: absolute;
  width: 136px;
  padding: 10px;
  background-color: #fff;
  text-align: left;
  top: 40px;
  left: 50%;
  margin-left: -78px;
  box-shadow: 2px 2px 20px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  border-radius: 4px;*/
}

    .nav_ul .li {
        display: block;
        height: 40px;
        line-height: 40px;
        font-size: 16px;
        color: #333;
        white-space: nowrap;
        padding: 0 10px;
        text-align: left;
        /*display: block;
  height: 40px;
  line-height: 40px;
  font-size: 16px;
  color: #333;
  text-align: center;*/
    }

.nav_ul .li:hover {
  color: #2584ff;
}

/*底部*/ 
/*.footer {
    height: 150px;
    background: url('/images/gx/bottom.png') no-repeat;
    background-position: bottom center;
    background-size: 100% auto;
}*/

/*.footer-wrap {
    padding: 66px 0 0;
    font-size: 14px;
    color: #333;
    line-height: 25px;
    text-align: center;
}

    .footer-wrap .logo-icon {
        vertical-align: middle;
    }*/

/* 底部 */
.footer {
    padding: 75px 0 40px;
    width: 100%;
    font-size: 14px;
    color: #666666;
    line-height: 28px;
    text-align: center;
    background: url('/res/images/ist/bottom.png') no-repeat;
    background-position: bottom center;
    background-size: 100% auto;
}

.footer .footer_contact {
  width: 1200px;
  margin: 0 auto;
}

.footer .footer_row {
  line-height: 32px;
  color: #666666;
  font-size: 14px;
}

.footer .footer_row a {
  color: #666666;
  cursor: pointer;
}

.footer .footer_row a:hover {
  color: #2584ff;
}

.footer .footer_row span {
  margin-right: 14px;
}

.footer .footer_row span:last-child {
  margin-left: 0;
}

.footer .logo_icon {
  vertical-align: middle;
}

/* 右侧菜单 */
.flex-bar-wrap {
  position: fixed;
  width: 80px;
  padding: 24px 0px;
  background: #fff;
  box-shadow: 4px 4px 20px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2000;
  box-sizing: border-box;
}

.flex-bar-wrap .item {
  margin-bottom: 24px;
  text-align: center;
  font-size: 14px;
  cursor: pointer;
  position: relative;
}

.flex-bar-wrap .item .label {
  color: #666666;
}

.flex-bar-wrap .item .icon {
  width: 32px;
  height: 32px;
  margin-bottom: 10px;
}

.flex-bar-wrap .item .icon.mobile {
  width: 29px;
  height: 39px;
}

.flex-bar-wrap .item:last-child {
  margin-bottom: 0;
}

.flex-bar-wrap .item .xcx {
  opacity: 0;
  width: 0;
  overflow: hidden;
  height: 120px;
  background: #ffffff;
  position: absolute;
  left: 0;
  top: -25px;
  transition: all 0.5s;
  box-sizing: border-box;
  padding: 10px;
  border-radius: 8px;
  box-shadow: 0px 2px 4px 0px rgba(0, 0, 0, 0.2);
}

.flex-bar-wrap .item .xcx .xcx_img {
  width: 100px;
  height: 100px;
  background: url("/res/images/ist/xcx.jpg");
  background-size: 100% 100%;
}

.flex-bar-wrap .item:hover .xcx {
  opacity: 1;
  width: 120px;
  left: -140px;
}

/* 滚动条 */
*::-webkit-scrollbar {
  height: 8px;
  width: 8px;
  border-radius: 8px;
}

*::-webkit-scrollbar-track {
  background-color: #f5f5f5;
  border-radius: 8px;
}

*::-webkit-scrollbar-thumb {
  background-color: #dddddd;
  border-radius: 8px;
}

*::-webkit-scrollbar-thumb:hover {
  background-color: #bbbbbb;
}

*::-webkit-scrollbar {
  display: block;
}