@charset "UTF-8";

*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

li {
  list-style: none;
}

a {
  text-decoration: none;
}

body {
  font-family:"Unbounded","M PLUS 1", sans-serif;
  font-weight:500;
  font-style: normal;
  color: #3d3d3d;

  background-image: url(../img/bg-yellow.png);
  background-attachment: fixed;
  letter-spacing: 0.05rem;
  line-height: 1.5;
  position: relative;
}

.wrapper {
  max-width: 1010px;
  margin: 0 auto;
  border-right: 5px solid #155882;
  border-left: 5px solid #155882;
  background-color: #F7F7F7;
}

/* header */
  header {
  width: calc(100% + 1px);
  }


/* -----
    main
    ----- */

main {
text-align: center;
position: relative;
} 

main .top-3675 {
  position:fixed;
  left: 4px;
  top: 10%;
}
main .top-3675 img {
  max-width: 100px;
}

main .bottom-3675 {
  position:fixed;
  right: 4px;
  bottom: 2%;
}

main .bottom-3675 img {
  max-width: 100px;
}
main .main-img {
  margin: 100px auto 70px;
}

main .main-img img {
  max-width: 280px;
}

main h2 {
  font-size: 52px;
  font-weight: bold;
  margin-bottom: 100px;
}

main #introduce {
  font-family: "M PLUS 1", sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: 24px;
  line-height:1.7;
  margin-bottom: 100px;
}

#introduce p {
  margin-bottom: 50px;
}

#introduce .text-last {
  padding-bottom: 50px;
}

main hr {
  margin: 0 auto;
  height: 1px;
  background-color: #155882;
  max-width: 600px;
  border: none; 
}

main .u-1000 {
  display: none;
}

main .u-500 {
  display: none;
}


/* ------
   link
   ------- */

#link {
  margin: 80px auto;
}

 #link img {
  max-width: 200px;
 }

 #link .link-x-box ul{
  display: flex;
  align-items: center;
  justify-content: space-evenly;
  margin-bottom: 80px;
 }

 #link .link-etc-box ul {
  display: flex;
  align-items: center;
  justify-content: space-around;
 }

 /* ======================== */

 .link-x-box ,
 .link-etc-box  {
  position: relative;
}
.link-x-box li .txt,
.link-etc-box li .txt {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background-color: rgba(0,0,0,.4);
  transition: .3s;
  color: #fff;
  padding-top: 90px;
  font-size: 20px;
}

.link-x-box li:hover .txt,
.link-etc-box li:hover .txt {
  opacity: 1;
}


/* ======================== */



@media screen and (max-width:1000px) {
  main .u-1000 {
  display: block;
}

main .top-3675  img{
  max-width:80px;
}
main .bottom-3675  img{
  max-width: 80px;
}

main #introduce {
  font-size: 20px;
}
}

@media screen and (max-width:768px) {

main .top-3675 img {
  max-width:60px;
}
main .bottom-3675 img {
  max-width: 60px;
}

main .main-img {
  margin: 80px auto 50px;
}

main .main-img img {
  max-width: 220px;
}

main h2 {
  font-size: 52px;
  font-weight: bold;
  margin-bottom: 80px;
}

main #introduce {
  font-size:clamp(0.875rem, 0.467rem + 1.63vw, 1.25rem);
  line-height:1.7;
  margin-bottom: 80px;
}

#introduce p {
  margin-bottom: 20px;
}


#introduce .text-last {
  padding-bottom: 0;
}

main hr {
  max-width: 400px;
}

/* ------
   link
   ------- */

#link {
  margin: 40px auto;
}

  #link .link-x-box ul{
  flex-wrap: wrap;
 }

 #link .link-etc-box ul {
  flex-wrap: wrap;
 }

 #link .link-x-box ul{
  margin-bottom: 60px;
 }

 /* ======================== */
 #link img {
  max-width: 180px;
 }

.link-x-box li .txt,
.link-etc-box li .txt {
  width: 180px;
  height: 180px;
  font-size: 18px;
}
}

@media screen and (max-width:500px) {
  main .u-500 {
    display: block;
  }
}

@media screen and (max-width:400px) {
main .top-3675 img{
  max-width: 40px;
}

main .bottom-3675 img{
  max-width: 40px;
}

main .main-img {
  margin: 80px auto 40px;
}

main .main-img img {
  max-width: 150px;
}

main h2 {
  font-size: 32px;
  font-weight: bold;
  margin-bottom: 40px;
}

main #introduce {
  font-size: clamp(0.75rem, 0.375rem + 2vw, 0.875rem);
}

#link .link-x-box ul{
  margin-bottom: 0;
}

 #link img {
  max-width: 150px;
 }

 #link .link-x-box ul li,
  #link .link-etc-box ul li{
  margin-bottom: 40px;
 }


.link-x-box li .txt,
.link-etc-box li .txt {
  font-size: 16px;
  width: 150px;
  height: 150px;
}


}