@font-face {
  font-family: "SMILE Chinese Subset";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../assets/fonts/noto-sans-sc-smile-subset.woff2") format("woff2");
  unicode-range: U+4E50, U+5DE5, U+666F, U+7A0B;
}

.project-name-cjk {
  font-family: "SMILE Chinese Subset", sans-serif;
}

.md-typeset {
  overflow-wrap: anywhere;
}

.md-typeset img {
  height: auto;
  max-width: 100%;
}

.md-typeset a {
  text-decoration: underline;
  text-underline-offset: 0.12em;
}

.md-copyright,
.md-copyright a {
  color: #a7a7a7;
}

.feature-grid,
.update-grid,
.research-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 1rem 0 1.4rem;
}

.feature-grid article,
.update-grid article,
.research-grid article {
  background: linear-gradient(145deg, #f7f9fc 0%, #ffffff 100%);
  border: 1px solid #dce4ed;
  border-radius: 0.55rem;
  box-shadow: 0 0.18rem 0.65rem rgba(22, 46, 75, 0.07);
  padding: 1rem 1.05rem;
}

.feature-grid article {
  border-top: 0.22rem solid #315f9c;
}

.feature-grid h3,
.research-grid h3 {
  margin-top: 0;
}

.update-grid article > :first-child,
.research-grid article > :first-child {
  margin-top: 0;
}

.update-grid article > :last-child,
.research-grid article > :last-child {
  margin-bottom: 0;
}

.research-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.research-meta {
  color: #4e6075;
  font-size: 0.82rem;
  font-weight: 650;
  letter-spacing: 0.01em;
  margin-bottom: 0.4rem;
}

.review-note {
  color: #4e6075;
  font-size: 0.86rem;
}

@media screen and (max-width: 47.984375em) {
  .feature-grid,
  .update-grid,
  .research-grid {
    grid-template-columns: 1fr;
  }
}

/* Keep Material's mobile search backdrop inside the viewport while it fades. */
@media screen and (max-width: 59.984375em) {
  [dir] .md-search__overlay {
    border-radius: 0;
    height: 100vh;
    height: 100dvh;
    inset: 0;
    position: fixed;
    transform: none;
    transition: opacity 0.2s;
    width: 100vw;
  }

  [data-md-toggle="search"]:checked ~ .md-header .md-search__overlay {
    transform: none;
  }
}