@media screen and (min-width: 1240px) and (max-width: 1360px) {
  /* system */
  .systemTitle {
    font-size: 18px;
  }
}
@media screen and (max-width: 1024px) {
  /* intro */
  .introLeft {
    width: 100%;
  }
  .introRight {
    display: none;
  }
  .introTitle {
    font-size: 57px;
    line-height: 67px;
  }

  /* system */
  .systemTitle {
    font-size: 16px;
  }
  .systemLeftImg img {
    max-width: 150px;
  }
}
@media screen and (max-width: 991px) {
  /* header */
  .logo img {
    max-width: 250px;
  }

  /* content */
  .contentBottomTitle {
    font-size: 56px;
    line-height: 66px;
  }

  /* comments */
  .comments {
    margin-top: 50px;
  }

  /* footer */
  .footer {
    margin-top: 50px;
    margin-bottom: 200px;
  }

  /* system */
  .systemInner,
  .systemLeft,
  .systemRight {
    flex-direction: column;
    gap: 20px;
  }
  .systemLeftImg img {
    max-width: 100%;
  }
}
@media screen and (max-width: 767px) {
  /* header */
  .sectionsLink,
  .headerTopRight,
  .headerBottomLinks {
    display: none;
  }
  .logo img {
    max-width: 200px;
  }

  /* intro */
  .intro {
    margin-top: 30px;
  }
  .introTitle {
    font-size: 25px;
    line-height: 35px;
  }
  .introSub {
    font-size: 16px;
  }
  .introImg {
    margin-top: 30px;
  }

  /* content */
  .contentSocial {
    display: none;
  }
  .contentFull {
    width: 100%;
  }
  .contentBoxs {
    gap: 30px;
    margin-top: 30px;
  }
  .contentBoxSubs {
    margin-top: 30px;
  }
  .contentSub,
  .contentBoxSub,
  .dayBoxSub {
    font-size: 18px;
    line-height: 28px;
  }
  .contentListItemSub {
    font-size: 15px;
    line-height: 25px;
  }
  .contentBoxTitle {
    font-size: 20px;
    line-height: 30px;
  }
  .contentBottomTitle {
    font-size: 23px;
    line-height: 33px;
  }
  .dayBoxTitle {
    font-size: 40px;
    line-height: 50px;
  }
  .contentBottom {
    margin-top: 30px;
  }
  .formBoxTitle p {
    font-size: 17px;
  }
  .formImgs img {
    max-width: 100px;
  }

  /* comments */
  .commentsTitle {
    font-size: 20px;
    line-height: 30px;
  }

  /* footer */
  .footerInner,
  .footerLeft {
    flex-direction: column;
    align-items: flex-start;
    gap: 30px;
  }
}