.hr-line {
  margin: 12px article-padding + 16px;
  opacity: 0.3;
  height: 4px;
  background-image: linear-gradient(to right, var(--red-0) 50%, transparent 0%);
  background-size: 50px 4px;
  background-repeat: repeat-x;
  filter: drop-shadow(0px 0px 2px var(--red-1));
  transition: opacity 0.3s, color 0.3s;

  &:hover {
    opacity: 0.5;
  }

  @media mg-normal {
    margin: 12px 16px;
  }
}

.article-inner {
  background: var(--color-wrap);
  border-radius: post-radius;
  display: flow-root;
  transition: 0.3s;
}

.article-meta {
  display: flex;
  flex-direction: column;
  padding: article-padding article-padding + 16px 0;

  @media mg-normal {
    padding: article-padding 16px 0;
  }
}

.article-summary {
  margin: 0 0 article-padding 0 !important;
}

.article-date {
  display: flex;
}

.article-date-link {
  font-size: 14px;
  color: var(--red-1);
  background: var(--red-5);
  border-radius: tag-radius;
  padding: 10px 20px;
  margin: 0 12px 16px 0;
  box-shadow: var(--shadow-meta);
  transition: 0.3s;

  &:before {
    margin-right: 8px;
  }
}

.article-entry {
  @extend $base-style;
  clearfix();
  overflow: hidden;
  color: var(--color-default);
  padding: 0 article-padding + 16px;

  @media mg-normal {
    padding: 0 16px;
  }

  p, table {
    line-height: line-height;
    margin: 16px 0;
  }

  .paragraph-anchor {
    opacity: 0;
    text-decoration: none !important;
    transition: 0.3s;
  }

  p:hover > .paragraph-anchor, li:hover > .paragraph-anchor, dd:hover > .paragraph-anchor, dt:hover > .paragraph-anchor, td:hover > .paragraph-anchor, th:hover > .paragraph-anchor, blockquote:hover > .paragraph-anchor, details:hover > .paragraph-anchor, figure:hover > .paragraph-anchor, figcaption:hover > .paragraph-anchor {
    opacity: 0.4;
  }

  h1, h2, h3, h4, h5, h6 {
    font-weight: bold;
    line-height: line-height-title;
    margin: line-height-title 0 0.75em;
    word-wrap: break-word;

    if (hexo-config('icon_font')) {
      a:first-of-type {
        font-family: font-icon;
        opacity: 0.5;
        margin-right: 4px;
        transition: 0.3s;

        &:hover {
          opacity: 0.8;
          text-decoration: none !important;
        }
      }
    } else {
      a:first-of-type {
        font-family: var(--font-icon);
        opacity: 0.5;
        margin-right: 4px;
        transition: 0.3s;

        &:hover {
          opacity: 0.8;
          text-decoration: none !important;
        }
      }
    }
  }

  h2 {
    margin-bottom: 40px;
  }

  a {
    color: var(--color-link);
    text-decoration: none;
    word-break: break-word;

    &:hover {
      text-decoration: underline;
    }
  }

  a:not(:has(code), h1 a, h2 a, h3 a, h4 a, h5 a, h6 a, .post-link-card a, .friend-item-wrap a, a.article-gallery-item, .nav-tabs a)::after {
    if (hexo-config('icon_font')) {
      font-family: font-icon;
      content: '\e639';
    } else {
      font-family: var(--font-icon);
      content: '\f0c1';
    }

    font-size: 0.5em;
    margin: 0 0.5em;
    vertical-align: middle;
    font-style: normal;
  }

  a:not(h1 a, h2 a, h3 a, h4 a, h5 a, h6 a) code::after {
    if (hexo-config('icon_font')) {
      font-family: font-icon;
      content: '\e639';
    } else {
      font-family: var(--font-icon);
      content: '\f0c1';
    }

    font-size: 0.5em;
    margin: 0 0.5em;
    vertical-align: middle;
    font-style: normal;
  }

  li {
    margin: 4px 0;

    &:hover {
      &::marker {
        transition: color 0.2s;
        color: var(--red-1);
      }
    }
  }

  img {
    opacity: 0;
    transition: 0.3s;
  }

  img, video {
    max-width: 100%;
    height: auto;
    display: block;
    margin: auto;
    border-radius: post-radius;
  }

  img.lazyloaded {
    opacity: 1;
    animation: blur 0.8s ease-in-out forwards;
  }

  iframe {
    border: none;
    border-radius: post-radius;
  }

  table {
    width: 100%;
    border-collapse: collapse;
    border-spacing: 0;
  }

  div.table-wrapper {
    overflow-x: auto;
    width: 100%;

    table {
      width: max-content;
      min-width: 100%;
    }

    &::-webkit-scrollbar {
      width: 8px;
      height: 8px;
    }
  }

  th {
    font-weight: bold;
    border-bottom: 3px solid var(--color-border);
    padding-bottom: 8px;
  }

  td {
    border-bottom: 1px solid var(--color-border);
    padding: 8px 0;
  }

  blockquote {
    background: var(--red-5-5);
    border-left: 6px var(--red-4) solid;
    margin: 28px 0;
    border-radius: post-radius;
    transition: 0.3s;
    display: flow-root;
    padding: 0 12px;
    box-shadow: var(--shadow-meta);

    &:hover {
      box-shadow: var(--shadow-meta-hover);
    }

    footer {
      font-size: font-size;
      margin: 24px 0;

      cite {
        &:before {
          content: '—';
          padding: 0 8px;
        }
      }
    }
  }

  details {
    padding: 16px 12px;
    border-radius: post-radius;
    background-color: var(--red-5-5);
    box-shadow: var(--shadow-meta);
    transition: 0.3s;

    &:hover {
      box-shadow: var(--shadow-meta-hover);
    }
  }

  summary {
    font-size: 1.1em;
    font-weight: bold;
    cursor: var(--cursor-pointer) !important;
    padding: 8px;
    border: none;
    border-radius: tag-radius;
    transition: 0.3s;
  }

  summary:hover {
    background-color: var(--red-5);
  }

  details[open] summary {
    background-color: var(--red-5);
  }

  details[open] summary:hover {
    background-color: var(--red-5);
  }

  details .detail-content {
    margin: 20px 0 0;
    padding: 12px;
    background-color: var(--color-footer-background);
    border-radius: tag-radius;
    transition: 0.3s;
  }

  .pullquote {
    text-align: left;
    width: 50%;
    box-sizing: border-box;
    margin: 0;

    &.left {
      margin-left: 8px;
      margin-right: 16px;
    }

    &.right {
      margin-right: 8px;
      margin-left: 16px;
    }
  }

  // http://webdesignerwall.com/tutorials/css-elastic-videos
  .video-container {
    position: relative;
    padding-top: (9 / 16 * 100)%; // 16:9 ratio
    height: 0;
    overflow: hidden;

    iframe, object, embed {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      margin-top: 0;
    }
  }

  p, ul, dl {
    word-wrap: break-word;
  }
}

.article-more-link a {
  display: inline-block;
  line-height: 1;
  padding: 10px 20px;
  border-radius: tag-radius;
  background: var(--red-5);
  color: var(--red-1);
  text-decoration: none;
  box-shadow: var(--shadow-meta);
  transition: 0.3s;

  &:after {
    margin-right: 0 !important;
  }

  &:hover {
    background: var(--color-link);
    color: #fff;
    text-decoration: none;
  }
}

.article-footer {
  clearfix();
  font-size: 14px;
  margin: 0 (article-padding + 16px) article-padding;

  @media mg-normal {
    margin: 0 16px article-padding;
  }

  &:hover {
    &:before {
      opacity: 0.5;
    }
  }

  &:before {
    content: '';
    display: block;
    margin-top: 12px;
    opacity: 0.3;
    height: 4px;
    background-image: linear-gradient(to right, var(--red-0) 50%, transparent 0%);
    background-size: 50px 4px;
    background-repeat: repeat-x;
    filter: drop-shadow(0px 0px 2px var(--red-1));
    transition: 0.3s;
  }

  a {
    text-decoration: none;
  }
}

.article-category-link, .article-tag-list-link, .article-comment-link, .article-visitor-link {
  color: var(--red-1);
  margin-top: article-padding;
}

.article-category-link, .article-tag-list-item {
  float: left;
  text-decoration: none;

  if (hexo-config('uppercase_capsule')) {
    text-transform: uppercase;
  }

  background: var(--red-5);
  border-radius: tag-radius;
  padding: 8px 16px;
  margin-top: article-padding;
  margin-right: 12px;
  box-shadow: var(--shadow-meta);
}

.article-category-link, .article-tag-list-link {
  &:before {
    margin-right: 8px;
  }
}

.article-comment-link {
  float: right;
  background: var(--red-5);
  margin-left: 12px;
  border-radius: tag-radius;
  padding: 8px 16px;

  &:before {
    margin-right: 8px;
  }
}

.article-visitor-link {
  float: right;
  font-size: 14px;
  background: var(--red-5);
  margin-left: 12px;
  border-radius: tag-radius;
  padding: 8px 16px;
}

#article-nav {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  border-radius: post-radius;
  overflow: hidden;

  @media mq-normal {
    flex-direction: row;
  }
}

.article-nav-link-wrap {
  color: #fff;
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 20px;
  opacity: 0.9;
  transition: opacity 0.3s;
  height: 150px;
  min-height: 150px;
  flex-shrink: 0;

  a, img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    filter: brightness(70%);
  }

  img {
    display: block;
    opacity: 0;
    object-fit: cover;
    z-index: -1;
  }

  img.lazyloaded {
    opacity: 1;
  }

  &:hover {
    opacity: 1;
  }

  &.right {
    align-items: flex-end;
  }
}

.article-nav-caption {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: bold;
  text-shadow: 0 0 0.5rem rgba(0, 0, 0, 0.7);
}

.article-nav-title {
  font-size: 20px;
  line-height: 1.2;
  margin-top: 16px;
  text-shadow: 0 0 0.5rem rgba(0, 0, 0, 0.7);
  -webkit-line-clamp: 3;
  line-clamp: 3;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-gallery {
  position: relative;
}

.article-gallery-photos {
  position: relative;
  overflow: hidden;
}

.article-gallery-img {
  display: none;
  max-width: 100%;

  &:first-child {
    display: block;
  }

  &.loaded {
    position: absolute;
    display: block;
  }

  img {
    display: block;
    max-width: 100%;
    margin: 0 auto;
  }
}

if (hexo-config('math.enable') && hexo-config('math.katex.enable')) {
  .katex-display {
    overflow-x: auto;
    overflow-y: hidden;

    &::-webkit-scrollbar {
      display: none;
    }
  }

  .katex {
    width: calc(100% - 2px);
  }

  .katex-html {
    padding: 4px;

    .base {
      margin: 0 auto;
    }
  }

  .katex-html:has(span.tag) {
    display: flex !important;
  }

  .katex-display>.katex>.katex-html>.tag {
    position: relative !important;
    float: right;
    margin-left: 0.25rem;
  }
}

if (hexo-config('math.enable') && hexo-config('math.mathjax.enable')) {
  mjx-container {
    display: inline-grid;
    overflow-x: auto;
    overflow-y: hidden;
    max-width: 100%;
    min-width: auto !important;

    &::-webkit-scrollbar {
      display: none;
    }
  }
}