.header-menu {
  position: relative;
  padding: 0 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
  background-color: #3c74de;
}

.header-menu .logo {
  width: 156px;
  height: 64px;
  background-image: url("/assets/images/components/header-menu/logo.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

.header-menu .icon-wap-nav,
.header-menu .icon-cross {
  font-size: 36px;
  color: #fff;
}

.header-menu .nav {
  position: absolute;
  left: 0;
  top: 64px;
  overflow: hidden;
  width: 100%;
  max-height: 0;
  background-color: rgba(60, 116, 222, 0.9);
  transition: max-height 0.5s ease;
}
.header-menu .nav.visible {
  max-height: calc(100vh - 64px);
}

.header-menu .nav .nav-menu {
  padding: 8px 16px;
}

.header-menu .nav .nav-menu .nav-menu__item {
  line-height: 1.8em;
}

.header-menu .nav .nav-menu .nav-menu__item .title-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #fff;
}

.header-menu .nav .nav-menu .nav-menu__item .title-wrapper .anchor {
  width: 100%;
}

.header-menu .nav .nav-menu .nav-menu__item .nav-sub-menu {
  display: none;
  flex-wrap: wrap;
  font-size: 14px;
  color: #fff;
}
.header-menu .nav .nav-menu .nav-menu__item .nav-sub-menu.active {
  display: flex;
}

.header-menu .nav .nav-menu .nav-menu__item .nav-sub-menu .nav-sub-menu__item {
  margin: 0 4px;
}

.header-menu .nav-middle {
  display: none;
}

.header-menu .right-button-group {
  display: none;
}

.header-menu .listening-wechat-mini-program-qr-code-overlay .content {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 24px;
  border-radius: 16px;
  background-color: #fff;
}

.header-menu .listening-wechat-mini-program-qr-code-overlay .content .title {
  font-size: 16px;
  text-align: center;
}

.header-menu
  .nav-middle
  .listening-wechat-mini-program-qr-code-popover-content {
  display: none;
  position: absolute;
  top: 56px;
  left: -16px;
  padding: 16px 8px;
  color: #b6caea;
  background-color: #174a77;
}

.header-menu
  .nav-middle
  .listening-wechat-mini-program-qr-code-popover-content
  .title {
  font-size: 14px;
  line-height: 1.8em;
  text-align: center;
}

@media screen and (min-width: 1200px) {
  .logout-popover .popover-content {
    padding: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 96px;
    font-size: 14px;
    color: #2f71de;
    cursor: pointer;
  }

  .header-menu {
    position: static;
    padding: 0 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
    background-color: #174a77;
  }

  .header-menu .logo {
    cursor: pointer;
  }

  .header-menu .icon-wap-nav,
  .header-menu .icon-cross {
    display: none;
  }

  .header-menu .nav {
    display: none;
  }

  .header-menu .nav-middle {
    display: block;
  }

  .header-menu .nav-middle .nav-menu {
    display: flex;
    font-size: 14px;
    color: #b6caea;
  }

  .header-menu .nav-middle .nav-menu .nav-menu__item {
    position: relative;
    margin: 0 16px;
    line-height: 4.5em;
  }
  .header-menu .nav-middle .nav-menu .nav-menu__item.sublibrary {
    position: static;
  }

  .header-menu .nav-middle .nav-menu .nav-menu__item .anchor,
  .header-menu .nav-middle .nav-menu .nav-menu__item .van-icon {
    cursor: pointer;
  }

  .header-menu .nav-middle .nav-menu .nav-menu__item .nav-sub-menu {
    position: absolute;
    top: 56px;
    left: -16px;
    padding: 8px 16px;
    display: none;
    flex-wrap: wrap;
    min-width: 10em;
    font-size: 14px;
    color: #b6caea;
    background-color: #174a77;
  }
  .header-menu .nav-middle .nav-menu .nav-menu__item .nav-sub-menu:hover {
    display: block;
  }
  .header-menu .nav-middle .nav-menu .nav-menu__item .nav-sub-menu.active {
    display: block;
  }

  .header-menu .nav-middle .nav-menu .nav-menu__item.sublibrary .nav-sub-menu {
    left: 50%;
    transform: translateX(-50%);
    justify-content: center;
    flex-wrap: wrap;
    min-width: auto;
    width: 1000px;
  }
  .header-menu
    .nav-middle
    .nav-menu
    .nav-menu__item.sublibrary
    .nav-sub-menu:hover {
    display: flex;
  }
  .header-menu
    .nav-middle
    .nav-menu
    .nav-menu__item.sublibrary
    .nav-sub-menu.active {
    display: flex;
  }

  .header-menu
    .nav-middle
    .nav-menu
    .nav-menu__item.sublibrary
    .nav-sub-menu
    .nav-sub-menu__item {
    margin: 16px;
    display: flex;
    align-items: center;
    width: 200px;
    line-height: normal;
  }

  .header-menu
    .nav-middle
    .nav-menu
    .nav-menu__item.sublibrary
    .nav-sub-menu
    .nav-sub-menu__item
    .sublibrary-image {
    margin-right: 8px;
    width: 40px;
    height: 40px;
    background-color: #fff;
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
  }

  .header-menu
    .nav-middle
    .nav-menu
    .nav-menu__item
    .nav-sub-menu
    .nav-sub-menu__item {
    line-height: 3em;
  }

  .header-menu
    .nav-middle
    .nav-menu
    .nav-menu__item
    .nav-sub-menu
    .nav-sub-menu__item:hover
    .anchor {
    color: #fff;
    border-bottom: 1px solid #fff;
  }

  .header-menu
    .nav-middle
    .listening-wechat-mini-program-qr-code-popover-content.active {
    display: block;
  }
  .header-menu
    .nav-middle
    .listening-wechat-mini-program-qr-code-popover-content:hover {
    display: block;
  }

  .header-menu .right-button-group {
    display: flex;
    align-items: center;
    color: #fff;
  }

  .header-menu .right-button-group .avatar {
    margin-right: 4px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: #eee;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    cursor: pointer;
  }

  .header-menu .right-button-group .organization-name {
    margin-right: 16px;
    font-size: 14px;
  }
  .header-menu .right-button-group .organization-name.logged-in {
    margin-right: 0;
    cursor: pointer;
  }

  .header-menu .right-button-group .username {
    cursor: pointer;
  }

  .header-menu .right-button-group .login-button,
  .header-menu .right-button-group .register-button {
    cursor: pointer;
  }

  .header-menu .right-button-group .divider {
    margin: 0 8px;
  }
}

@media screen and (min-width: 1920px) {
  .header-menu .logo {
    width: 280px;
  }

  .header-menu .nav-middle .nav-menu {
    font-size: 16px;
  }

  .header-menu
    .nav-middle
    .listening-wechat-mini-program-qr-code-popover-content.active {
    display: block;
  }
  .header-menu
    .nav-middle
    .listening-wechat-mini-program-qr-code-popover-content:hover {
    display: block;
  }
}