.kihon_johou{
    list-style-type: none;
    position: relative;
    padding-left: 45px;
    margin: 15px 0px;
  }

  .kihon_johou li::before{
    position: absolute;
    display: block;
    left: 10px;
    color: #ff007a;
    content: "◆";
  }

  .kihon_johou span{
    display: block;
    color: #000;
  }

  .kihon_johou_t{
    width: 680px;
    color: #f00;
    margin-top: 20px;
  }

  .btn_area_air{
    width: 740px;
    display: flex;
    margin-bottom: 30px;
  }

  .tjump_btn{
    position: relative;
    width: 350px;
    height: 60px;
    font-size: 25px;
    font-weight: bold;
    line-height: 60px;
    border: 2px solid;
    border-radius: 5px;
    box-shadow: 2px 2px 4px #888;
    margin: 0px 10px;
  }

  .tjump_btn a{
    position: absolute;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
  }

  .tjump_btn:hover{
    background-color: #ef8;
  }

  .nagare_title{
    width: 700px;
    font-size: 26px;
    line-height: 180%;
    text-align: left;
    border-left: 10px solid #ff007a;
    padding-left: 10px;
    box-sizing: border-box;
    margin: 10px 0px;
  }

  .nagare_text{
    width: 650px;
    font-size: 24px;
    line-height: 140%;
    text-align: left;
    margin-bottom: 20px;
  }

  .nagare_text ol{
    padding-left: 30px;
  }

  .jump_btn{
    position: relative;
    width: 600px;
    height: 60px;
    font-size: 25px;
    font-weight: bold;
    line-height: 60px;
    border: 2px solid;
    border-radius: 5px;
    box-shadow: 2px 2px 4px #888;
    margin-bottom: 30px;
  }

  .jump_btn a{
    position: absolute;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
  }

  .jump_btn:hover{
    background-color: #ef8;
  }

  .kouji_area{
    position: relative;box-shadow: 2px 2px 4px #888;box-sizing: border-box;
    width: 720px;border: 2px solid #00f;font-size: 28px;margin: 40px 0px 50px;border: 2px solid #00f;border-radius: 5px;
  }

  .kouji_title{
    width: 100%;line-height: 60px;color: #fff;background-color: #00f;margin-bottom: 20px;
  }

  .kouji_text1{
    color: #ff007a;margin-bottom: 20px;
  }

  .kouji_text2{
    width: 100%;line-height: 60px;color: #fff;background-color: #00f;margin-top: 20px;
  }

  .kouji_area a{
    position: absolute;top: 0px;left: 0px;width: 100%;height: 100%;
  }

  .kouji_area:hover{
    background-color: #ffc;
  }

  .kouji_btn{
    position: relative;width: 620px;height: 80px;font-size: 28px;line-height: 80px;color: #fff;
    background-color: #00f;border: 2px solid #ddd;border-radius: 5px;box-shadow: 2px 2px 4px #888;
    margin-bottom: 30px;
  }

  .kouji_btn a{
    position: absolute;top: 0px;left: 0px;width: 100%;height: 100%;
  }

  .kouji_btn:hover{
    opacity: 0.8;
  }

  .english {
    margin-top:15px;
    width:680px;
    text-align:right;
    font-size:18px;
    color:#F0F;
    font-weight:bold;
    }

  .air_type_area{width: 740px;display: flex;flex-wrap: wrap;margin: 10px 0px 40px;}
  .air_type_set{width: 350px;height: 250px;margin: 10px 10px;}
  .air_type_texte{width: 350px;height: 50px;font-size: 30px;line-height: 46px;color: #006;font-weight: bold;border: 2px solid #006;box-sizing: border-box;}
  .air_type_img{width: 350px;height: 200px;background-color: #ead788;}
  .air_style_set{width: 350px;height: 210px;margin: 10px 10px;}
  .air_style_img{width: 350px;height: 120px;}
  .air_style_texte{width: 350px;height: 38px;font-size: 22px;line-height: 38px;color: #006;font-weight: bold;border-bottom: 2px solid #006;}


  #pop_up_mf{
    display: none;
  }
  .mf_tsuite_btn{
    font-size: 24px;
    color: #00f;
    text-decoration: underline;
    display: block;
  }
  .mf_tsuite_btn:hover{
    color: #f00;
    cursor: pointer;
  }
  .overlay_mf{
    display: none;
    position: fixed;
    width: 100%;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.6);
  }
  .window_mf{
    position: fixed;top: 50%;left: 50%;width: 760px;padding: 20px 10px;height: 650px;background-color: #fff;border-radius: 4px;transform: translate(-50%, -50%);font-size: 20px;color: #006;line-height: 120%;
  }
  input[type="checkbox"]:checked + .overlay_mf {
    display: block;
    
  }
  .close_mf{
    display: block;
    position: absolute;
    bottom: 10px;
    right: 10px;
    padding: 10px;
    color: #fff;
    background-color: #006;
    border-radius: 3px;
    cursor: pointer;
    font-size: 20px;
  }
  .close_mf:hover{
    opacity: 0.8;
  }
  .mf_btn_area{
    display: flex;width: 700px;
  }
  buttom{
    appearance: none;
  }