@charset "UTF-8";
/*--------------------------------
全体
---------------------------------*/
html {
    scroll-behavior: smooth;
}
body {
    font-family: Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo,
    sans-serif;
    font-size: 16px;
    color: #333;
  }
  
  a {
    text-decoration: none;
    transition: 0.3s;
  }
  
  a:hover {
    opacity: 0.8;
  }
  
  img {
    max-width: 100%;
    height: auto;
    vertical-align: bottom;
  }

/*--------------------------------
レイアウト
---------------------------------*/
.container {
    max-width: 1170px;
    margin: 0 auto;
    padding: 0 30px;
  }
/*--------------------------------
ヘッダー
---------------------------------*/
.header {
    padding: 50px 0;
  }
  
  .header .logo {
    width: 280px;
    margin: 0 auto;
  }

/*--------------------------------
メインビジュアル
---------------------------------*/
.main-visual {
    text-align: center;
  }

/*--------------------------------
グローバルナビ
---------------------------------*/
.global-nav {
    padding: 40px 0;
  }
  
  .global-nav ul {
    display: flex;
    justify-content: center;
  }
  
  .global-nav ul li {
    font-size: 18px;
    line-height: 1;
    letter-spacing: 0.1em;
    margin-right: 80px;
  }
  
  .global-nav ul li:last-child {
    margin-right: 0;
  }

/*--------------------------------
コンセプト
---------------------------------*/
.concept {
    padding: 50px 0;
  }
  
  .concept > .container {
    display: flex;
    align-items: center;
  }
  
  .concept .img {
    width: 50%;
  }
  
  .concept .desc {
    width: 50%;
    padding-right: 20px;
    padding-left: 40px;
  }
  
  .concept .subtitle {
    font-size: 16px;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
  }
  
  .concept .title {
    font-size: 32px;
    font-weight: bold;
    line-height: 1.5;
    letter-spacing: 0.1em;
    color: #24a8bf;
    margin-bottom: 30px;
  }
  
  .concept .text p {
    font-size: 16px;
    line-height: 1.8;
    letter-spacing: 0.1em;
  }

  /*--------------------------------
ブログ記事一覧
---------------------------------*/
.blog {
    padding: 50px 0;
  }
  
  .blog .heading {
    font-size: 32px;
    font-weight: bold;
    line-height: 1;
    letter-spacing: 0.08em;
    color: #24a8bf;
    text-align: center;
    margin-bottom: 30px;
  }
  
  .blog .subtitle {
    display: block;
    font-size: 13px;
    line-height: 1;
    letter-spacing: 0.03em;
    color: #333;
    margin-top: 8px;
  }
  
  .blog .list {
    display: flex;
    flex-flow: wrap;
  }
  
  .blog .list .item {
    width: calc((100% - 60px) / 3);
    margin-right: 30px;
    margin-bottom: 30px;
    /* flex: 0 1 calc((100% - 60px) / 3); */
  }
  
  .blog .list .item:nth-child(3n) {
    margin-right: 0;
  }
  
  .blog .list .item:hover {
    opacity: 0.8;
  }
  
  .blog .list .img {
    margin-bottom: 12px;
  }
  
  .blog .list .title {
    font-size: 15px;
    line-height: 1.6;
    font-weight: bold;
  }
  
  .blog .list .date {
    font-size: 12px;
    margin-top: 6px;
  }

  .btn {
    display: block;
    position: relative;
    width: 220px;
    font-size: 15px;
    font-weight: bold;
    color: #24a8bf;
    line-height: 1;
    text-align: center;
    margin: 0 auto;
    padding: 18px 0;
    transition: opacity 0.3s;
    border: 1px solid #24a8bf;
    border-radius: 3px;
  }
  
  .btn::after {
    display: block;
    content: "";
    position: absolute;
    top: 50%;
    right: 1em;
    width: 5px;
    height: 9px;
    transform: translateY(-50%);
    background-image: url("../images/icon_arrow-right.png");
    background-repeat: no-repeat;
    background-size: 5px 9px;
  }

 /*--------------------------------
フッター
---------------------------------*/
.footer {
    padding: 70px 0 30px;
    background-color: #000;
  }
  
  .footer .logo {
    width: 180px;
    margin: 0 auto;
    margin-bottom: 50px;
  }
  
  .footer .copyright {
    font-size: 12px;
    letter-spacing: 0.05em;
    color: #8b8b8b;
    text-align: center;
  }

  @media screen and (max-width: 767px) {
    body {
        font-size: 15px;
        line-height: 1.7;
     }

     /* レイアウト */
  .container {
    padding: 0 20px;
  }

  /* ヘッダー */
  .header {
    padding: 30px 0;
  }

  .header .logo {
    width: 172px;
  }

  /* グローバルナビ */
  .global-nav {
    padding: 30px 0;
  }

  .global-nav ul li {
    font-size: 16px;
    margin-right: 50px;
  }

  /* コンセプト */
  .concept {
    padding: 40px 0;
  }

   .concept .container {
    flex-direction: column;
  }

  .concept .img {
    width: 100%;
    margin-bottom: 30px;
  }

  .concept .desc {
    width: 100%;
    padding-right: 0;
    padding-left: 20px;
  }

  .concept .subtitle {
    font-size: 15px;
    margin-bottom: 15px;
  }

  .concept .title {
    font-size: 26px;
    line-height: 1.5;
    margin-bottom: 20px;
  }

  .concept .text p {
    font-size: 15px;
    line-height: 1.8;
  }

  /* blog */
  .blog .heading {
    font-size: 30px;
    margin-bottom: 30px;
  }

  .blog .subtitle {
    font-size: 12px;
    margin-top: 10px;
  }

  .blog .list {
    display: block;
  }

  .blog .list .item {
    width: 100%;
    margin-right: 0;
    margin-bottom: 20px;
  }

  .blog .list .img {
    margin-bottom: 10px;
  }

  .blog .list .date {
    margin-top: 2px;
  }

  .btn {
    font-size: 14px;
    width: 100%;
  }

  .btn:hover {
    opacity: 1;
  }

  /* フッター */
  .footer {
    padding: 60px 0 20px;
  }

  .footer .logo {
    width: 100px;
    margin-bottom: 40px;
  }

  .footer .copyright {
    font-size: 10px;
  }
  }