/* 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
------------------------------------------------------------*/

.large-category.orange {
  color: orange;
}

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

.research::before {
  content: "我々の188bet体育_188bet备用网址内容";
  font-size: 12px;
  color: #000;
  display: block;
}
.top_category {
  color: #d4d4d4;
  font-size: 30px;
  margin: -5px 0 100px;
  text-align: center;
}

.top-images {
  display: flex;
}

.top-images img {
  width: 33.3%;
  object-fit: cover;
}

.contents {
  width: 90%;
  margin: 100px auto;
}
.first-item {
  border: 1px solid #00236a;
  width: 50%;
  margin: 0 auto 100px;
  padding: 70px 70px;
}
.first-item h2 {
  font-size: 20px;
  text-align: center;
  color: #00236a;
  margin-bottom: 50px;
}

.first-item ul {
  margin-top: 50px;
  list-style-type: disc;
}

.first-item ul li {
  margin-bottom: 20px;
  list-style-position: inside;
  text-indent: -1.1em;
  margin-left: 20px;
}
.first-item ul li::marker {
  color: #00236a;
  font-size: 1.1em;
}

.item {
  width: 50%;
  margin: 50px auto;
}
.item h3 {
  font-size: 17px;
}
.item ul li {
  margin-top: 10px;
  margin-left: 10px;
}
.warning-note {
  width: 50%;
  margin: 50px auto;
}
.warning-note p {
  font-size: 12px;
  margin-left: 10px;
}
/* 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
------------------------------------------------------------*/

@media only screen and (max-width: 1200px) {
  .first-item {
    width: 80%;
  }
  .item,
  .warning-note {
    width: 100%;
  }
}

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

  .first-item {
    padding: 50px 32px;
  }
}

@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 {
    font-size: 13px;
  }
  .large-category {
    font-size: 40px;
  }
  .top_category {
    font-size: 30px;
  }
}