:root {
  --md-text-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.md-grid {
  max-width: 78rem;
}

.md-typeset {
  font-size: 0.82rem;
  line-height: 1.85;
}

/* Keep the decorative watermark inside the article, clear of navigation. */
.md-content__inner {
  --pqc-watermark-opacity: 0.08;
  position: relative;
  isolation: isolate;
}

[data-md-color-scheme="slate"] .md-content__inner {
  --pqc-watermark-opacity: 0.1;
}

@supports (mask-image: url("")) or (-webkit-mask-image: url("")) {
  .md-content__inner::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    user-select: none;
    background-color: var(--md-default-fg-color);
    opacity: var(--pqc-watermark-opacity);
    -webkit-mask: url("../images/watermark.svg") 0 0 / 520px 360px repeat;
    mask: url("../images/watermark.svg") 0 0 / 520px 360px repeat;
  }
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  line-height: 1.5;
  scroll-margin-top: 5rem;
}

.md-typeset h1 {
  font-weight: 650;
}

.md-typeset .arithmatex:not(span) {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.3rem 0;
}

.md-typeset .footnote {
  font-size: 0.75rem;
}

.md-typeset [id^="ref-"],
.md-typeset [id^="eq-"] {
  scroll-margin-top: 5rem;
}

.md-typeset [id^="ref-"]:target,
.md-typeset p:has(> a[id^="eq-"]:target) + .arithmatex {
  background-color: var(--md-accent-fg-color--transparent);
  outline: 0.2rem solid var(--md-accent-fg-color--transparent);
}

.md-typeset p:has(> a[id^="eq-"]) {
  margin: 0;
}

.md-typeset img {
  display: block;
  margin: 1.5rem auto;
}

.md-typeset .md-button {
  margin: 0 0.5rem 0.5rem 0;
}

@media (min-width: 76.25em) {
  .md-sidebar--primary {
    width: 16rem;
  }

  [dir="ltr"] .md-sidebar--primary .md-sidebar__inner {
    padding-right: 0.5rem;
  }
}

@media (max-width: 44.98em) {
  .md-content__inner::after {
    -webkit-mask-size: 360px 249px;
    mask-size: 360px 249px;
  }

  .md-typeset {
    font-size: 0.8rem;
  }

  .md-typeset h1 {
    font-size: 1.65em;
  }
}