#html {
  font-family: 'Noto Sans KR', sans-serif;
  font-size: 10px;
}

#body {
  position: relative;
  box-sizing: border-box;
  padding-top: 6.6rem;
  color: #221E1F;
}

.up_on_scroll {
  transition: transform 2s, opacity 1s;
}

.nav_fixed {
  display: flex;
  background-color: black;
  color: #fff;
  align-items: center;
  justify-content: space-between;
  margin: auto;
  padding: 1.3rem 2rem 1.3rem 1rem;
  font-size: 1.4rem;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  border-bottom: 0.1rem solid #fff;
  z-index: 9999;
  width: 100%;
}

.nav_logo_group {
  margin-left: 2rem;
  display: flex;
  flex-direction: column;
}

.nav_logo_txt {
  /* margin-right: 4rem; */
  display: block;
  height: 0.8rem;
  padding-left: 1rem;

}

.nav_txt {
  margin-right: 4rem;
}

.nav_logo {
  width: 6rem;
}

.margin {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 2rem 4rem;
}

.video {
  width: 100%;
  display: block;
  margin-bottom: 4rem;
}

.title_all {
  text-align: center;
  font-weight: 500;
  font-size: 1.8rem;
  line-height: 2.8rem;
  margin-bottom: 2rem;
}

.title_main {
  text-align: center;
  font-weight: 500;
  font-size: 1.8rem;
  line-height: 2.8rem;
  margin-bottom: 2rem;
}

.title_txt {
  text-align: center;
  font-weight: 300;
  font-size: 1.4rem;
  line-height: 2rem;
  width: 22.7rem;
}

.section {
  border-bottom: 0.1rem solid #221E1F;
  margin-bottom: 2rem;
}

.profile_img {
  width: 16.4rem;
  margin-bottom: 2rem;
}

.profile_name {
  margin-bottom: 1rem;
}

.profile_txt {
  margin-bottom: 2rem;
}

.profile_spec {
  display: flex;
  flex-direction: row;
  gap: 2rem;
  justify-content: space-around;
  align-items: flex-start;
  margin-bottom: 2rem;
}

.profile_spec_2 {
  display: flex;
  align-items: flex-start;
  margin-bottom: 2rem;
}


.container {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  width: 15.8rem
}

.container_2 {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

.spec_title {
  font-weight: 400;
  font-size: 1.4rem;
  line-height: 1.6rem;
}

.spec_sub {
  font-weight: 300;
  font-size: 1.2rem;
  line-height: 1.6rem;
  color: #969696;
}

.last_spec {
  padding-bottom: 2rem;
  border-bottom: 0.1rem solid #221E1F;
}

.slider {
  margin: 0 auto;
  padding: 0;
}

.st_img {
  width: 100%;
  z-index: -1;
}

.lesson_container {
  display: flex;
  gap: 2rem;
  justify-content: center;
  align-items: center;
}

.lesson_ul {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: center;
  justify-content: center;
  width: 15.8rem;
  height: 6.2rem;
  border-radius: 1rem;
  margin-bottom: 2rem;
  background-color: black;
  color: #fff;
  font-weight: 400;
  padding: 1.4rem 3.6rem;
  box-sizing: border-box;
}

.bx-wrapper .bx-controls-direction a {
  z-index: -1;
}

.li_txt {
  font-size: 1rem;
  display: block;
  line-height: 1.2rem;
}

.li_txt_bottom {
  margin-bottom: 1rem;
}

.map {
  padding-bottom: 2rem;
}

.mb-20 {
  margin-bottom: 1.6rem;
}

.highlight {
  background-color: #221E1F;
  width: fit-content;
  padding: 1rem;
  cursor: pointer;
}

.naver_link {
  text-decoration: none;
  color: #fff;
  font-size: 1.2rem;
  text-align: center;
}

#footer {
  background-color: #000;
  color: #fff;
  padding: 2rem;
  padding-bottom: 10rem;
  font-weight: 300;
}

.footer_logos {
  display: flex;
  margin-bottom: 2rem;
  justify-content: space-between;
}

.footer_dtb_logo {
  width: 6.8rem;
}

.footer_link {
  display: flex;
  align-items: center;
  gap: 2rem;
  cursor: pointer;

}

.icon {
  margin: 0 auto;
  height: 2rem;
  display: block;
}

.dl {
  display: flex;
  margin-bottom: 1.6rem;
  margin-left: 1.5rem;
}

dt::after {
  content: ':';
  padding: 0.4rem;
}

.btn_fixed {
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  width: 100%;
  height: 7.5rem;
  background-color: #000;
  color: #fff;
  padding: 1.3rem 2rem 1.3rem 1rem;
  font-size: 1.6rem;
  font-weight: 400;
  bottom: 0;
  left: 0;
  right: 0;
  border: 0.1rem solid #fff;
  border-width: 0.1rem 0 0 0;
  z-index: 9999;
  cursor: pointer;
}

/* ///////////////////////////////////////////600의 벽//////////////////////////////////////////////////////// */

@media screen and (min-width: 600px) {
  #html {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 20px;
  }

  #body {
    padding-top: 5.3rem;
  }
  
  .nav_logo {
    width: 4rem;
  }

  .profile_spec {
    display: flex;
    flex-direction: row;
    gap: 2rem;
    justify-content: center;
    align-items: flex-start;
    margin-bottom: 2rem;
  }

  .profile_spec_2 {
    width: 33.6rem;
    margin: 0 auto;
    margin-bottom: 2rem;
    border-bottom-width: 0;
  }


  .border_top {
    border-top: 0.1rem solid #221E1F;
    width: 100%;
    padding-top: 2rem;
  }

  .map {
    /* width: 60rem;
    margin: 0 auto; */
    border-bottom-width: 0px;
  }

  .btn_fixed {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    width: 100%;
    height: 4rem;
    background-color: #000;
    color: #fff;
    padding: 1.3rem 2rem 1.3rem 1rem;
    font-size: 1rem;
    font-weight: 400;
    bottom: 0;
    left: 0;
    right: 0;
    border: 0.1rem solid #fff;
    border-width: 0.1rem 0 0 0;
    z-index: 9999;
    cursor: pointer;
  }
}