/* グローバルスタイル */
html {
    font-size: 16px; /* 基本のフォントサイズ */
    line-height: 1.5; /* 行間 */
    font-family: "Noto Sans JP", sans-serif; /* デフォルトのフォント */
    box-sizing: border-box; /* ボックスモデルを統一 */
  }
  
  body {
    margin: 0;
    padding: 0;
    background-color: #f9f9f9; /* 背景色 */
    color: #333; /* デフォルトの文字色 */
    font-weight: 400; /* デフォルトのフォントウェイト */
  }
  
  /* Poppins フォントスタイル */
  .poppins-regular {
    
    font-weight: 400;
    font-style: normal;
  }
  
  .poppins-medium {
    font-family: "Poppins", sans-serif;
    font-weight: 500;
    font-style: normal;
  }
  
  .poppins-bold {
    font-family: "Poppins", sans-serif;
    font-weight: 700;
    font-style: normal;
  }
  
  /* Noto Sans JP フォントスタイル */
  .noto-sans-body {
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 400;
    font-style: normal;
  }
  
  .noto-sans-medium {
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 500;
    font-style: normal;
  }
  
  .noto-sans-bold {
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 700;
    font-style: normal;
  }
  
  /* Dancing Script フォントスタイル */
  .dancing-script-heading {
    font-weight: 700;
    font-style: normal;
  }

  .pop {font-family: "Poppins", sans-serif;}
  
  /* レイアウト用のコンテナ */
  .container {
    width: 90%;
    max-width: 1120px;
    margin: 0 auto;
    position: relative;
  }

  .flex {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    align-items: center;
  }
  
  header {
    padding: 27px 0;
  }
  .logo {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.04em;
  }
  .logo span {
    color: #001F5B;
  }
.header_menu li {
    margin-left: 40px;
}
.header_menu li a {
    transition: .3s;
}
.header_menu li a:hover {
    color: #0456f9;
    transition: .3s;
}

@media only screen and (max-width: 768px) {
    header .container {
        justify-content: center;
    }
    .header_menu li {
        margin: 20px 16px 0 16px; 
    }
}

#hero {
    background-image: url(../images/hero.jpg);
    background-position: center;
    background-size: cover;
    height: 540px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    margin-bottom: 90px;
    overflow: hidden;
}
#hero::before {
    content: '';
    width: 100%;
    height: 100%;
    background-color: #000000;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0.2;
    z-index: 1;
}
.hero_inner {
    z-index: 2;
    color: #ffffff;
    width: 100%;
    text-align: center;
}
.hero_inner p {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 16px;
}
.hero_inner h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
}

@media only screen and (max-width: 768px) {
    #hero {height: 460px;}
    .hero_inner p{font-size: 15px;}
    .hero_inner h1{font-size: 17px;}
}



#concept {
    margin-bottom: 120px;
}
.title {
    font-size: 20px;
    font-weight: 500;
    color: #0456f9;
    margin-bottom: 60px;
}
#concept h3 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 60px;
}
.column-2 {
    width: 48%;
}
.text {
    line-height: 2;
}
.concept-img {
    background-image: url(../images/concept.jpg);
    background-position: center;
    background-size: cover;
    height: 340px;
    border-radius: 20px;
}
.heading {
    font-family: "Dancing Script", cursive;
    font-size: 200px;
    font-weight: 700;
    color: #001F5B;
    opacity: 0.1;
    position: absolute;
    top: 0;
    right: 0;
    transform: translateY(-30%);
    z-index: -1;
}

@media only screen and (max-width: 768px) {
    #concept h3 {
    font-size: 24px;
    line-height: 1.5;
    }
    .column-2 {
        width: 100%;
    }
    .text {
     font-size: 15px;
     line-height: 1.7;
    }
    .concept-img {margin-top: 30px;}
}

#About {
    margin-bottom: 120px;
}
.About_inner {
    margin-bottom: 40px;
    position: relative;
}
.column-40 {
    width: 40%;
}
.column-55 {
    width: 55%;
}
#About img {
    border-radius: 20px;
}
#About h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
}

@media only screen and (max-width: 768px) {
    .column-40 {
        width: 100%;
        margin-bottom: 30px;
    }
    .column-55 {
        width: 100%;
    }
    #About h3 {
        font-size: 17px;
    }
}

#vision\&mission {
    margin-bottom: 120px;
}
#vision\&mission dl {
    max-width: 900px;
    margin-left: auto;
}
#vision\&mission dt {
    width: 30%;
    padding: 48px 0;
    font-weight: 500;
    border-bottom: solid 2px #001F5B;
}
#vision\&mission dd {
    width: 70%;
    padding: 48px 0;
    border-bottom: solid 2px #001F5B;
}

@media only screen and (max-width: 768px) {
    #vision\&mission dl {
        font-size: 13px;
    }
}

.column-a {
    background-image: url(../images/bottom1.jpg);
    background-position: center;
    background-size: cover;
    width: 24%;
    height: 270px;
    border-radius: 20px;
}
.column-b {
    background-image: url(../images/bottom2.jpg);
    background-position: center;
    background-size: cover;
    width: 18%;
    height: 270px;
    border-radius: 20px;
}
.column-c {
    background-image: url(../images/bottom3.jpg);
    background-position: center;
    background-size: cover;
    width: 24%;
    height: 270px;
    border-radius: 20px;
}
.column-d {
    background-image: url(../images/bottom4.jpg);
    background-position: center;
    background-size: cover;
    width: 28%;
    height: 270px;
    border-radius: 20px;
}

@media only screen and (max-width: 768px) {
    .column-a, .column-b, .column-c,.column-d {
    width: 48%;
    height: 140px;
    margin: 1%;
    }
}

footer {
    text-align: center;
    margin: 90px 0;
}
.copyright {
    font-size: 12px;
    margin-top: 40px;
}