/* 共通
------------------------------------------------------------*/
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
/*--------------------------*/
body {
  font-family: "Lato", "Noto Sans JP", "Helvetica", "Helvetica Neue", "Yu Gothic", "Verdana", "Meiryo", sans-serif;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 3px;
  color: #414141;
}

a {
  text-decoration: none;
  color: #414141;
}

img {
  width: 100%;
  height: auto;
}
h4 {
  font-size: 20px;
}

h5 {
  font-size: 17px;
}

p {
  font-size: 15px;
}
.flex-box {
  display: flex;
}

.block-box {
  display: block;
}

/* main
------------------------------------------------------------*/
main {
  width: 90%;
  margin: 0 auto;
}

.large-category.red {
  color: #c30d23;
}

.large-category {
  font-size: 60px;
  margin: 200px 0 0px;
  text-align: center;
}

.large-category::before {
  content: "リンク";
  font-size: 12px;
  color: #000;
  display: block;
}
.description {
  text-align: center;
  margin-top: 20px;
}

.container {
  display: grid;
  gap: 30px 50px;
  margin-top: 50px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.item {
  text-align: center;
  padding: 20px;
}
.item img {
  max-width: 300px;
  margin: 10px auto;
  display: block;
}

.site,
.sns {
  border-bottom: 1px solid #414141;
  margin-top: 100px;
  font-size: 20px;
}

.sns-box {
  display: flex;
  justify-content: space-around;
  margin-top: 50px;
}

.sns-box a img {
  height: 50px;
  width: auto;
}
/* footer
------------------------------------------------------------*/
footer {
  background-color: #f5f5f5;
  margin-top: 100px;
  padding-top: 70px;
}

footer .copywrite {
  text-align: center;
  color: #fff;
  padding: 10px;
  background-color: #414141;
  font-size: 10px;
}

/* RESPONSIVE 設定
------------------------------------------------------------*/

/*---------●タブレット●----------*/
@media only screen and (max-width: 999px) {
  /*-----------共通------------*/
  body {
    letter-spacing: 0px;
  }
}

@media only screen and (max-width: 800px) {
  .chronology {
    display: none;
  }
  .content {
    width: 90%;
    margin: 0 auto;
    padding-left: 0;
  }
  .large-category {
    margin-top: 150px;
  }
  .year {
    margin-top: 70px;
    margin-bottom: 20px;
  }
}
@media only screen and (max-width: 700px) {
}
/*------●スマホ●-------*/
@media only screen and (max-width: 600px) {
  /*-------共通--------*/

  body {
    letter-spacing: 0;
  }
  .large-category {
    font-size: 40px;
  }
}