/* below 1376px */
@media (max-width: 86em) {
  .chap-01-pic {
    left: 0;
  }
}

/* below 1200px */
@media (max-width: 75em) {
  html {
    font-size: 56.25%;
  }
  .chap-title-flex-end {
    margin-right: 0;
  }
  .chap-content-box {
    padding: 8rem 2.4rem;
  }
  .book-grid {
    gap: 4.6rem;
  }
}

/* below 1104px */
@media (max-width: 69em) {
}

/* below 944px */
@media (max-width: 59em) {
  html {
    font-size: 50%;
  }
  .chap-01-pic-img,
  .chap-02-pic-img,
  .chap-05-pic-img,
  .chap-06-pic-img,
  .chap-04-pic-img {
    width: 77rem;
  }
}

/* below 752px */
@media (max-width: 47em) {
  .main-container {
    padding: 0 3.2rem;
  }
  .section-hero {
    background-image: url(images/bg-hero-sm.jpg);
    padding: 35rem 2.4rem 65rem 2.4rem;
  }
  .hero-flex {
    display: flex;
    justify-content: center;
    font-size: 2rem;
    letter-spacing: 0.2rem;
    font-size: 2rem;
    line-height: 1.7;
    margin-left: auto;
  }
  .hero {
    max-width: 50rem;
  }
  .hero-title-img {
    width: 100%;
    margin-bottom: 2rem;
  }
  .hero-recommend-absolute {
    right: auto;
    left: 50%;
    transform: translateX(-50%);
    top: 100rem;
  }
  .chap-01-pic {
    left: 50%;
    transform: translateX(-50%);
  }
  .chap-01-pic-img,
  .chap-02-pic-img,
  .chap-05-pic-img,
  .chap-06-pic-img,
  .chap-04-pic-img {
    width: 66rem;
  }
  .chap-title-01-img {
    width: 33rem;
  }
  .chap-title-01 {
    margin-top: 20rem;
  }
  .chap-title-flex-end {
    display: flex;
    justify-content: center;
    margin-right: auto;
  }
  .chap-title-descrip {
    display: flex;
    justify-content: center;
    max-width: 60rem;
    margin: 0 auto;
    color: #1d1d1d;
    font-weight: bold;
    text-align: justify;
    background-color: rgba(235, 231, 220, 0.9);
    padding: 1.8rem;
    margin-bottom: 12rem;
    margin-top: 3.2rem;
  }
  .book-set {
    max-width: 20rem;
    justify-self: center;
  }
  .good-set {
    max-width: 22rem;
    justify-self: center;
  }
  .book-img {
    height: 28rem;
  }
  .good-img {
    height: 22rem;
  }
}

/* below 544px */
@media (max-width: 34em) {
  .main-container {
    padding: 0 2rem;
  }

  .chap-01-pic-img,
  .chap-02-pic-img,
  .chap-05-pic-img,
  .chap-06-pic-img,
  .chap-04-pic-img {
    width: 40rem;
  }
  .chap-title-01 {
    margin-top: 4.6rem;
  }
  .chap-title-01-img {
    width: 28rem;
  }
  .chap-content-box {
    padding: 6.4rem 2.4rem;
  }
  .chap-content {
    margin-bottom: 3.2rem;
  }
  .chap-subtitle-grid {
    grid-template-columns: 1fr;
    justify-content: center;
    align-items: center;
    gap: 2.4rem;
  }
  .chap-subtitle-pic {
    justify-self: center;
  }
  .chap-subtitle {
    text-align: center;
  }
  .chap-subtitle-01-img {
    width: 33rem;
  }
  .chap-subtitle-02-img {
    width: 38rem;
  }
  .book-grid {
    gap: 4.6rem;
    row-gap: 3.2rem;
  }
}