.header-inner {
  width: 100%;
  font-size: $font-size-header;
  background-color: $header-nav-bg-color;

  if (hexo-config('header.height') && match('%', hexo-config('header.height'))) {
    height: unit(convert(hexo-config('header.height')), 'vh');
  } else {
    height: convert(hexo-config('header.height') || '80vh');
  }

  if (hexo-config('header.bg_image.enable')) {
    background: url(hexo-config('header.bg_image.url')) no-repeat center center;
    background-size: cover;
  }
}

if (hexo-config('header.nav_height') && match('%', hexo-config('header.nav_height'))) {
  header-nav-height = unit(convert(hexo-config('header.nav_height')), 'vh');
} else {
  header-nav-height = convert(hexo-config('header.nav_height') || '50px');
}

.header-nav {
  position: fixed;
  top: 0;
  z-index: $z-index1;
  width: 100%;
  height: header-nav-height;
  transition-property: transform, background-color;
  transition-ease();
  will-change: transform;

  &.fixed {
    background-color: $header-nav-bg-color;
  }

  &.slider-down {
    transform: translateY(0);
  }

  &.slider-up {
    transform: translateY(-100%);
  }
}

.header-nav-inner {
  position: relative;
  margin: 0 auto;
  width: 'calc(100% - %s)' % ($content-aside-gap * 2);
  height: 100%;

  i {
    margin-right: .3rem;
  }
}

.header-nav-btn {
  display: none;
  padding: 0 .5rem;
  line-height: header-nav-height;
  color: $header-nav-link-color;
}

.header-nav-menu {
  visibility: hidden;
  height: 100%;
  line-height: header-nav-height;
  opacity: 0;
  transition-property: opacity;
  transition-ease();

  &.show {
    visibility: visible;
    opacity: 1;
  }

  &-item {
    float: left;
    position: relative;
    margin: 0 1rem 0 0;
    text-align: center;
    cursor: pointer;

    &:last-child {
      margin: 0;
    }

    &__a {
      display: block;
      padding: 0 .5rem;
      color: $header-nav-link-color;
      transition-property: color;
      transition-ease();
    }
  }
}

.header-nav-submenu {
  display: none;
  position: absolute;
  right: -.4rem;
  left: -.4rem;
  border-radius: 3px;
  background-color: $header-nav-bg-color;

  .header-nav-menu-item {
    margin: 0;
    width: 100%;
    font-size: $font-size-header;
    line-height: 1;
    text-align: center;
    transition-property: background-color;
    transition-ease();
    word-wrap();

    &__a {
      line-height: header-nav-height;
    }
  }
}

.header-nav-search {
  position: absolute;
  top: 0;
  right: 0;
  padding: 0 .5rem;
  height: 100%;
  line-height: header-nav-height;
  color: $header-nav-link-color;
  transition-property: color;
  transition-ease-in-out();
  cursor: pointer;

  &:hover {
    color: $header-nav-link-hover-color;

    i,
    span {
      color: $header-nav-link-hover-color;
    }
  }
}

.header-info {
  position: relative;
  height: 100%;

  if (hexo-config('header.mask.enable')) {
    background-color: alpha(#000, hexo-config('header.mask.opacity'));
  }
}

.header-info-inner {
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  padding: 0 .5rem;
  text-align: center;
  transform: translateY(-50%);
}

.header-info-title {
  margin-bottom: .5rem;
  font-size: 4rem;
  font-weight: $font-weight-bolder;
  line-height: 1.6em;
  color: $white-light;
}

.header-info-subtitle {
  font-size: 1.2rem;
  font-weight: $font-weight-normal;
  color: $white-light;
}