/* below 1408x */
@media (max-width: 88em) {
  .chap-01-pic,
  .chap-02-pic {
    left: 0;
  }

  .chap-03-pic,
  .chap-05-pic {
    right: 0;
  }
}

/* below 1200px */
@media (max-width: 75em) {
  html {
    font-size: 56.25%;
  }
  .chap-title-03 {
    padding-top: 10rem;
    padding-bottom: 10rem;
  }
  .chap-04-pic-img {
    width: 70rem;
  }
}

/* below 1040px */
@media (max-width: 65em) {
  .content-box {
    max-width: 80rem;
    margin: 0 auto;
  }
}

/* below 944px */
@media (max-width: 59em) {
  html {
    font-size: 50%;
  }
}

/* below 848px */
@media (max-width: 53em) {
  .chap-01-pic,
  .chap-03-pic,
  .chap-05-pic {
    right: auto;
    left: 50%;
    transform: translateX(-50%);
  }
  .chap-03-pic {
    top: -3.2rem;
  }
  .chap-04-pic {
    top: -10rem;
  }
  .chap-05-pic {
    top: -10rem;
  }
  .chap-title,
  .chap-title-03,
  .chap-title-04,
  .chap-title-05 {
    display: none;
  }
  .chap-title-sm {
    display: block;
    padding-top: 22rem;
    text-align: center;
  }
  .chap-title-03-sm,
  .chap-title-04-sm,
  .chap-title-05-sm {
    display: block;
    text-align: center;
    padding-bottom: 2.4rem;
  }
  .chap-title-03-sm {
    padding-top: 50rem;
  }
  .chap-title-04-sm {
    padding-top: 60rem;
  }
  .chap-title-05-sm {
    padding-top: 40rem;
  }
}

/* below 752px */
@media (max-width: 47em) {
  .hero-flex-start {
    flex-direction: column;
  }
  .hero-subtitle {
    padding-left: 6.4rem;
  }
  .chap-01-pic-img {
    width: 70rem;
  }
  .chap-title-sm {
    padding-top: 18rem;
  }
  .chap-02 {
    justify-content: center;
    padding-top: 60rem;
  }
  .chap-02-pic {
    right: auto;
    left: 50%;
    transform: translateX(-50%);
  }
  .chap-title-02 {
    display: none;
  }
  .chap-title-02-sm {
    display: block;
    margin-top: 10rem;
  }
}

/* below 560px */
@media (max-width: 35em) {
  .chap-01-pic-img,
  .chap-04-pic-img,
  .chap-05-pic-img {
    width: 60rem;
  }
  .chap-title-sm {
    padding-top: 10rem;
  }
  .chap-title-06-sm {
    padding-top: 40rem;
  }
}

/* below 544px */
@media (max-width: 34em) {
  .main-container {
    padding: 0 2.4rem;
  }
  .hero-flex-start {
    align-items: center;
    margin-left: auto;
  }
  .hero-title,
  .hero-subtitle {
    transform: rotate(0);
  }
  .hero-subtitle {
    padding-left: 0;
  }
  .hero-title-img {
    width: 100%;
  }
  .hero-subtitle-img {
    width: 80%;
  }
  .promotion-box {
    margin: 0 auto;
    margin-bottom: 8rem;
  }
  .chap-01-img {
    width: 100%;
  }
  .deg-3 {
    transform: rotate(0);
  }
  .chap-02 {
    padding-top: 60rem;
  }
  .chap-01-pic-img,
  .chap-03-pic-img,
  .chap-04-pic-img,
  .chap-05-pic-img {
    width: 50rem;
  }
  .chap-02-pic-img {
    width: 48rem;
  }
  .chap-title-sm {
    padding-top: 2.4rem;
  }
  .chap-title-03-sm,
  .chap-title-04-sm {
    padding-top: 40rem;
  }
  .chap-title-05-sm,
  .chap-title-06-sm {
    padding-top: 30rem;
  }
  .book-box {
    width: 100%;
    padding: 1rem 0;
  }
  .book-text-content {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .book-img {
    height: 24rem;
  }
  .goods-img {
    height: 24rem;
  }
}

/* below 448px */
@media (max-width: 28em) {
  .promotion-box {
    margin-bottom: 4.6rem;
  }
  .chap-01-pic-img,
  .chap-03-pic-img,
  .chap-04-pic-img,
  .chap-05-pic-img {
    width: 39rem;
  }
  .chap-01-pic {
    top: -12rem;
  }
  .chap-02-pic-img {
    width: 36rem;
  }
  .chap-02 {
    padding-top: 40rem;
  }
  .chap-title-sm {
    padding-top: 0;
  }
  .chap-title-03-sm,
  .chap-title-04-sm {
    padding-top: 30rem;
    padding-bottom: 1rem;
  }
  .chap-title-05-sm,
  .chap-title-06-sm {
    padding-top: 20rem;
    padding-bottom: 1rem;
  }
  .chap-cate-flex {
    gap: 3.2rem;
    margin-top: 1rem;
  }
}