.#{$prefix}-c-navigator{
  font-size: $font-14;
  position: sticky;
  top: 0;
  border-bottom: 1px solid $clr-divider-color;
  background-color: $clr-bg-page-color;
  box-shadow: 0 0 5px rgba(0,0,0,.05);

  ul {
    list-style: none;
    display: flex;
    height: $nav-height;
    line-height: $nav-height;
    width: $page-width;
    margin: 0 auto;
  }

  li {
    flex: 50% 1 1;
    text-align: center;
    font-size: $font-16;
    color: $clr-sub-color;
    cursor: pointer;
    @include transition(all .5s ease);
    overflow: hidden;
   
    .text-inner {
      display: inline-block;
      padding: 0 10px;
      position: relative;

      &:after {
        content: "";
        display: block;
        height: 2px;
        background-color: $clr-error-color;
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        transition: all .5s ease-in-out;
        opacity: 0;
      }  
    }

    &:hover {
      .text-inner {
        color: $clr-error-color;
        &:after {
          opacity: 1;
        }
      }
    }

    &.actived {
      .text-inner {
        color: $clr-error-color;
        &:after {
          bottom: 0;
        }
      }
    }
  }
}