*{
  margin: 0;
}
body{
  background-image: url('imgs/bg.png');
  background-size: cover;
}
img{
  display: block;
}
p{
  font-size: 18px;
}
a{
  text-decoration: none;
  transition: all 0.3s;
}
a:hover{
  opacity: 0.7;
}
.container{
  width: 90%;
  max-width: 1080px;
  margin: 0 auto;
}
header{
  background-color: white;
  border-bottom: solid 2px black;
}
header a{
  display: block;
  width: 20%;
  padding: 30px 0 6px;
}
header a img{
  display: block;
  width: 100%;
}


#top_wrapper{
  text-align: center;
  font-family: 'Noto Serif JP', serif;
  padding-bottom: 30px;
}
#top_wrapper h1{
  font-size: 42px;
  font-weight: bold;
  color: rgb(182,0,5);
  padding-top: 1.5em;
}
#top_wrapper h3{
  font-size: 18px;
  padding: 1em 0;
  font-weight: bold;
}
#top_wrapper img{
  width: 100%;
}


.h2_wrapper{
  padding-bottom: 90px;
}
.h2_area{
  position: relative;
  margin-bottom: 30px;
}
.h2_area h2{
  font-size: 36px;
  font-weight: bold;
  font-family: 'Noto Serif JP', serif;
  text-align: center;
  color: rgb(182,0,5);
}
.h2_area img{
  position: absolute;
  height: 20.4px;
  transform: translateY(-50%);
  top: 50%;
}
.h2_area img:nth-of-type(2n+1){
  left: 0;
}
.h2_area img:nth-of-type(2n){
  right: 0;
}
.sentences{
  text-align: center;
}
.sentences p{
  line-height: 1.8;
  padding-bottom: 1.8em;
}
.navi_area{
  background-color: white;
  width: 70%;
  margin: 0 auto;
  padding: 18px 0;
}
.navi_half{
  display: inline-block;
  vertical-align: top;
  width: 50%;
  padding-left: 45px;
  box-sizing: border-box;
}
.navi_area a{
  text-decoration: none;
  font-size: 18px;
  color: rgb(3,110,184);
  line-height: 1.8;
  transition: all 0.3s;
}
.navi_area a:hover{
  opacity: 0.7;
}
.navi_area a:visited{
  color: rgb(3,110,184);
}
.photo_img{
  width: 100%;
  padding-bottom: 48px;
}
.note_img{
  width: 81%;
  margin: -27px auto 12px;
}


.writer_area{
  width: 80%;
  box-sizing: border-box;
  padding: 27px 42px;
  position: relative;
  background-color: white;
  border: solid 6px rgb(0,31,91);
  border-radius: 12px;
  margin: 0 auto;
}
.writer_area h4{
  font-size: 24px;
  font-weight: bold;
  padding-bottom: 0.5em;
  color: rgb(0,31,91);
  line-height: 1.5;
}
.writer_area p{
  line-height: 1.8;
  color: rgb(0,31,91);
}
.writer_area img{
  position: absolute;
  width: 18%;
  bottom: 0;
  right: 6%;
}


#bottom_wrapper .container{
  background-color: white;
  padding-bottom: 36px;
}
#bottom_wrapper h4{
  font-family: 'Noto Serif JP', serif;
  font-size: 24px;
  font-weight: bold;
  color: white;
  display: block;
  line-height: 1.8;
  padding: 1em 0;
  text-align: center;
}
.courses{
  width: 90%;
  padding: 60px 0 36px;
  margin: 0 auto;
}
.courses a{
  display: inline-block;
  vertical-align: top;
  width: 44%;
  margin: 0 3%;
  text-decoration: none;
  transition: all 0.3s;
}
.courses a:hover{
  opacity: 0.7;
}
.courses a img{
  display: block;
  width: 100%;
  vertical-align: top;
}
.bg_yellow{
  background-color: rgb(243,152,0);
}
.bg_blue{
  background-color: rgb(0,160,233);
}
.bg_pink{
  background-color: rgb(217,78,137);
}
.bottom_logo{
  display: block;
  margin: 0 auto;
  width: 30%;
  text-align: center;
  color: black;
}
.bottom_logo img{
  display: block;
  width: 100%;
}
#bottom_wrapper {
    padding: 90px 0 60px;
}




@media (min-width:768px) and (max-width:1199px) {
  p{
    font-size: 1.5vw;
  }
  header a{
    padding: 2.5vw 0 0.5vw;
  }
  #top_wrapper{
    padding-bottom: 2.5vw;
  }
  #top_wrapper h1{
    font-size: 3.5vw;
  }
  #top_wrapper h3{
    font-size: 1.5vw;
  }
  .h2_wrapper{
    padding-bottom: 7.5vw;
  }
  .h2_area{
    margin-bottom: 2.5vw;
  }
  .h2_area h2{
    font-size: 3vw;
  }
  .h2_area img{
    height: 1.7vw;
  }
  .navi_area{
    padding: 1.5vw 0;
  }
  .navi_half{
    padding-left: 3.75vw;
  }
  .navi_area a{
    font-size: 1.5vw;
  }
  .photo_img{
    padding-bottom: 4vw;
  }
  .note_img{
    margin: -2.25vw auto 1vw;
  }
  .writer_area{
    padding: 2.25vw 3.5vw;
    border: solid 0.5vw rgb(0,31,91);
    border-radius: 1vw;
  }
  .writer_area h4{
    font-size: 2vw;
  }
  #bottom_wrapper .container{
    padding-bottom: 3vw;
  }
  #bottom_wrapper h4{
    font-size: 2vw;
  }
  .courses{
    padding: 5vw 0 3vw;
  }
  #bottom_wrapper {
    padding: 7.5vw 0 5vw;
  }
}


.sp_only{
  display: none;
}
@media (max-width:767px) {
  .pc_only{
    display: none;
  }
  .sp_only{
    display: block;
  }
  p{
    font-size: 3.5vw;
  }
  .sentences{
    text-align: left;
  }
  header a{
    width: 40%;
  }
  #top_wrapper h1{
    font-size: 6vw;
  }
  #top_wrapper h3{
    font-size: 4vw;
  }
  .h2_area h2{
    font-size: 5vw;
  }
  .h2_area img{
    display: none;
  }
  .navi_area {
    width: 100%;
    padding: 5vw 0;
  }
  .navi_half {
    width: 100%;
    padding-left: 8vw;
  }
  .navi_area a{
    font-size: 4.5vw;
  }
  .note_img {
    width: 100%;
    margin: -5vw auto 3vw;
  }
  .h2_wrapper {
    padding-bottom: 12vw;
  }
  .writer_area {
    width: 100%;
    padding: 4vw 6vw;
    border: solid 1vw rgb(0,31,91);
    border-radius: 4vw;
  }
  .writer_area h4{
    font-size: 4.3vw;
  }
  .writer_area img {
    width: 20%;
    right: 9%;
  }
  #bottom_wrapper h4{
    font-size: 4.3vw;
  }
  #bottom_wrapper {
    padding: 18vw 0 8vw;
  }
  #bottom_wrapper .container {
    padding-bottom: 6vw;
  }
  .courses {
    padding: 8vw 0 6vw;
  }
  .courses a{
    width: 94%;
  }
  .courses a:nth-of-type(2n+1){
    padding-bottom: 6vw;
  }
  .bottom_logo{
    width: 50%;
  }
}