main {
  max-width: 54em;
}

.aria-heading {
  margin: 60px auto 40px;
}

.h2 {
  margin: 0;
  font-size: 1.4em;
}

.h3 {
  margin: 80px auto 20px;
  font-size: 1.2em;
  text-decoration: underline;
  text-underline-offset: 7px;
  text-decoration-style: dotted;
}

.text-mw-wide {
  width: 30em;
  max-width: 100%;
  margin: 1em auto 4em;
  font-size: 1.2em;
  line-height: 1.55;
  text-align: justify;
}

.bookcover {
  max-width: 100%;
  width: 100%;
  margin-bottom: 20px;
}

.people {
  margin: 40px -40px;
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  list-style: none;
  gap: 20px;
  padding: 0;
  box-sizing: border-box;
}

.people li {
  padding: 20px;
  border-radius: var(--radii);
  box-sizing: border-box;
  border: 1px solid var(--borderColor);
}

[id] {
  scroll-margin-block-start: 40px;
}

.banner-s {
  display: none;
}

.links {
  margin-bottom: 20px;
}

@media (max-width: 600px) {
  .people {
    margin-left: 0;
    margin-right: 0;
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 400px) {
  .banner {
    display: none;
  }

  .banner-s {
    width: 100%;
    display: block;
  }

  .people {
    grid-template-columns: 1fr 1fr;
  }

  .people li {
    padding: 0 0 20px;
    border: 0;
    border-bottom: 1px solid var(--borderColor);
    margin-bottom: 20px;
  }

}

.pane, .links:has(.pane) {
  text-align: center;
  width: 100%;
}

.book-title {
  display: block;
}

.author-title {
  font-size: 0.9em;
}

.zh-wu {
  height: 0.9em;
  vertical-align: middle;
}

h1.h1-vid {
  margin: 40px auto 40px;
}

.video-logo {
  height: 50px;
}

.ol {
  text-align: left;
  box-sizing: border-box;
}

.ol li {
  margin-bottom: 10px;
}