@charset "utf-8";
/* CSS Document */
div#howto img {
  width: 100%;
  height: auto;
}
#howto em {
  font-style: normal;
  font-weight: 600;
  font-size: 108%;
}
#howto .ribbonA-wrapper {
  display: block;
  position: relative;
  margin: 0 auto;
  padding: 0 0px 0 20px;
  width: 100%;
  background: #fff;
  box-sizing: border-box;
}
#howto .ribbonA {
  display: inline-block;
  position: relative;
  box-sizing: border-box;
  padding: 5px 0;
  margin: 2.5rem 0 0 -20px;
  width: calc(100% + 20px);
  color: white;
  background: #257DB0;
}
@media screen and (max-width:736px) {
  #howto .ribbonA {
    margin: 1rem 0 0 -20px;
  }
}
#howto .ribbonA h2 {
  margin: 0;
  padding: 8px 0 10px 3%;
  font-size: clamp(1.1rem, -0.328rem + 3.1vw, 2rem);
  border-top: dashed 1px rgba(255, 255, 255, 0.50);
  border-bottom: dashed 1px rgba(255, 255, 255, 0.50);
  line-height: 1.3em;
}
#howto .ribbonA:before {
  position: absolute;
  content: '';
  top: 100%;
  left: 0;
  border: none;
  border-bottom: solid 15px transparent;
  border-right: solid 20px #1A5E86;
}
#howto .ribbonB-wrapper {
  display: block;
  position: relative;
  margin: 0 auto;
  padding: 0 0px 0 20px;
  width: 100%;
  background: #fff;
  box-sizing: border-box;
}
#howto .ribbonB {
  display: inline-block;
  position: relative;
  box-sizing: border-box;
  padding: 5px 0;
  margin: 0 0 0 -20px;
  width: calc(100% + 20px);
  font-size: 22px;
  color: white;
  background: #C4542B;
}
#howto .ribbonB h2 {
  margin: 0;
  padding: 8px 0 10px 3%;
  font-size: clamp(1.1rem, -0.328rem + 3.1vw, 2rem);
  border-top: dashed 1px rgba(255, 255, 255, 0.50);
  border-bottom: dashed 1px rgba(255, 255, 255, 0.50);
  line-height: 1.3em;
}
#howto .ribbonB:before {
  position: absolute;
  content: '';
  top: 100%;
  left: 0;
  border: none;
  border-bottom: solid 15px transparent;
  border-right: solid 20px #953E1E;
}
#howto .ribbonC-wrapper {
  display: block;
  position: relative;
  margin: 0 auto 2rem;
  padding: 0 0px 0 20px;
  width: 100%;
  background: #fff;
  box-sizing: border-box;
}
#howto .ribbonC {
  display: inline-block;
  position: relative;
  box-sizing: border-box;
  padding: 5px 0;
  margin: 0 0 0 -20px;
  width: calc(100% + 20px);
  font-size: 22px;
  color: white;
  background: #2E827A;
}
#howto .ribbonC h2 {
  margin: 0;
  padding: 8px 0 10px 3%;
  font-size: clamp(1.1rem, -0.328rem + 3.1vw, 2rem);
  border-top: dashed 1px rgba(255, 255, 255, 0.50);
  border-bottom: dashed 1px rgba(255, 255, 255, 0.50);
  line-height: 1.3em;
}
#howto .ribbonC:before {
  position: absolute;
  content: '';
  top: 100%;
  left: 0;
  border: none;
  border-bottom: solid 15px transparent;
  border-right: solid 20px #21635C;
}
#howto h2 > span {
  font-size: 85%;
}
/*===============================================
●pc.css
===============================================*/
@media screen and (min-width:737px) {
  div#howto {
    max-width: 1200px;
    padding: 0;
    margin: 0 auto;
  }
  /*===========h1============*/
  #howto .h1_tit {
    display: flex;
    background-color: #000;
    padding: 2rem 2.5rem 1.5rem;
    margin: 0 auto;
  }
  #howto .h1_img {
    width: 330px;
    padding: 0;
    margin-right: 2rem;
    margin-top: -0.3rem;
  }
  #howto .h1_txt {
    display: block;
    color: #fff;
    font-size: clamp(1.8rem, 1.007rem + 1.72vw, 2.3rem);
    font-weight: 600;
  }
  #howto .h1_txt span {
    font-size: 75%;
  }
  #howto .frame {
    border: 15px solid #000;
    padding: 3rem 1.25rem 0;
  }
  /*===========flow============*/
  #howto .flow_fra ol {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 3rem auto 1.5rem;
    padding: 0;
    list-style: none;
  }
  #howto .flow_fra li {
    width: calc(100% / 4 - 14px);
    display: flex;
    flex-direction: column;
  }
  #howto .fra_frame {
    position: relative;
    border-radius: 10px;
    border: solid 2px #2E827A;
    padding: 1em;
    box-sizing: border-box;
  }
  #howto .fra_no {
    position: absolute;
    width: 45px;
    height: 45px;
    border: 5px solid #fff;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    background-color: #2E827A;
    border-radius: 100px;
    color: #fff;
    font-size: 2rem;
    line-height: 2.7rem;
    text-align: center;
    font-weight: 600;
    z-index: 10;
  }
  #howto .flow_fra02 ol {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 3rem auto;
    padding: 0;
    list-style: none;
  }
  #howto .flow_fra02 li {
    width: calc(100% / 2 - 14px);
    display: flex;
    flex-direction: column;
  }
  #howto .ice_frame {
    position: relative;
    border-radius: 10px;
    border: solid 2px #257DB0;
    padding: 1em;
    box-sizing: border-box;
    margin-bottom: 1rem;
  }
  #howto .ice_no {
    position: absolute;
    width: 45px;
    height: 45px;
    border: 5px solid #fff;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    background-color: #257DB0;
    border-radius: 100px;
    color: #fff;
    font-size: 2rem;
    line-height: 2.7rem;
    text-align: center;
    font-weight: 600;
    z-index: 10;
  }
  #howto .hot_frame {
    position: relative;
    border-radius: 10px;
    border: solid 2px #C4542B;
    padding: 1em;
    box-sizing: border-box;
  }
  #howto .hot_no {
    position: absolute;
    width: 45px;
    height: 45px;
    border: 5px solid #fff;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    background-color: #C4542B;
    border-radius: 100px;
    color: #fff;
    font-size: 2rem;
    line-height: 2.7rem;
    text-align: center;
    font-weight: 600;
    z-index: 10;
  }
  #howto li p {
    font-size: 1rem;
    line-height: 1.6em;
  }
  #howto .flow_fra span {
    font-size: 85%;
  }
  #howto li img {
    margin: 1.1rem auto 0.5rem;
  }
  #howto .flex {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
  }
  #howto .flex_img {
    width: 45.4%;
  }
  #howto .flex_txt {
    width: 52.5%;
    margin: 1rem 0 0 0;
  }
  /*=======自宅での作り方==========*/
  #howto .aten_frame {
    width: 100%;
    border-radius: 10px;
    border: solid 2px #2E827A;
    padding: 1em;
    box-sizing: border-box;
    margin-bottom: 1.5rem;
  }
  #howto .aten_tit {
    font-size: 1.2rem;
    color: #2E827A;
    margin-bottom: .5rem;
  }
  #howto .aten_tit::before {
    content: "●";
    font-size: 1.1rem;
    margin-right: .2rem;
  }
  #howto .aten_list01 li {
    font-size: 1.05rem;
    list-style: decimal;
    margin-left: 1.5rem;
    font-weight: 600;
    line-height: 1.6;
    margin-bottom: 0.4rem;
  }
  #howto .aten_list01 li > span {
    font-weight: normal;
  }
  #howto .aten_list01 .txtS {
    font-size: 0.87rem;
  }
  #howto .aten_tit02 {
    font-size: 1.1rem;
    margin: 1rem 0 .4rem;
  }
  #howto .aten_tit02::before {
    content: "⚠️";
    font-size: 1.3rem;
    margin-right: .2rem;
  }
  #howto .aten_list02 li {
    font-size: 0.85rem;
    list-style: disc;
    margin-left: 1.8rem;
    margin-bottom: 0.4rem;
    line-height: 1.6;
  }
  #howto .movie {
    width: 60%;
    height: 60%;
    float: right;
  }
  #howto .movie_txt {
    width: 38%;
    float: left;
  }
  .youtube {
    position: relative;
    padding-bottom: 33.77%;
    padding-top: 0px;
    height: 0;
    overflow: hidden;
    margin-top: 0px;
  }
  .youtube iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }
}
/*===============================================
●sp.css 
===============================================*/
@media screen and (max-width:736px) {
  div#howto {
    margin: 0 calc(50% - 50vw);
    padding: 0;
  }
  /*===========h1============*/
  #howto .h1_tit {
    display: block;
    background-color: #000;
    padding: .7rem 1rem 1.1rem;
    margin: 0 auto;
  }
  #howto .h1_img {
    width: 55%;
    margin: 0 auto.5rem;
    padding: 0;
  }
  #howto .h1_txt {
    display: block;
    color: #fff;
    font-size: 1.5rem;
    text-align: center;
    line-height: 1.0;
    font-weight: 600;
  }
  #howto .h1_txt > span {
    font-size: 57%;
  }
  #howto .frame {
    border: 10px solid #000;
    padding: 2rem .5rem 0;
  }
  /*===========flow============*/
  #howto .flow_fra ol {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 2.5rem auto 0rem;
    padding: 0;
    list-style: none;
  }
  #howto .flow_fra li {
    width: calc(100% / 2 - 5px);
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
  }
  #howto .fra_frame {
    position: relative;
    border-radius: 10px;
    border: solid 2px #2E827A;
    padding: .7em;
    box-sizing: border-box;
  }
  #howto .fra_no {
    position: absolute;
    width: 35px;
    height: 35px;
    border: 5px solid #fff;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    background-color: #2E827A;
    border-radius: 100px;
    color: #fff;
    font-size: 1.6rem;
    line-height: 2.1rem;
    text-align: center;
    font-weight: 600;
    z-index: 10;
  }
  #howto .flow_fra02 ol {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 2.5rem auto;
    padding: 0;
    list-style: none;
  }
  #howto .flow_fra02 li {
    width: calc(100% / 2 - 5px);
    display: flex;
    flex-direction: column;
  }
  #howto .ice_frame {
    position: relative;
    border-radius: 10px;
    border: solid 2px #257DB0;
    padding: .7em;
    box-sizing: border-box;
  }
  #howto .ice_no {
    position: absolute;
    width: 35px;
    height: 35px;
    border: 5px solid #fff;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    background-color: #257DB0;
    border-radius: 100px;
    color: #fff;
    font-size: 1.6rem;
    line-height: 2.1rem;
    text-align: center;
    font-weight: 600;
    z-index: 10;
  }
  #howto .hot_frame {
    position: relative;
    border-radius: 10px;
    border: solid 2px #C4542B;
    padding: .7em;
    box-sizing: border-box;
  }
  #howto .hot_no {
    position: absolute;
    width: 35px;
    height: 35px;
    border: 5px solid #fff;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    background-color: #C4542B;
    border-radius: 100px;
    color: #fff;
    font-size: 1.6rem;
    line-height: 2.1rem;
    text-align: center;
    font-weight: 600;
    z-index: 10;
  }
  #howto li p {
    font-size: 0.9rem;
    line-height: 1.6em;
  }
  #howto li img {
    margin: 0.8rem auto 0.5rem;
  }
  #howto .flex {
    width: 100%;
  }
  #howto .flex_img {
    width: 100%;
  }
  /*=======自宅での作り方==========*/
  #howto .aten_frame {
    width: 100%;
    border-radius: 10px;
    border: solid 2px #2E827A;
    padding: 1em;
    box-sizing: border-box;
    margin-bottom: 1.5rem;
  }
  #howto .aten_tit {
    font-size: 1.1rem;
    color: #2E827A;
    margin-bottom: .5rem;
  }
  #howto .aten_tit > span {
    font-size: 0.5rem;
  }
  #howto .aten_tit::before {
    content: "●";
    font-size: 1.05rem;
    margin-right: .2rem;
  }
  #howto .aten_list01 li {
    font-size: 0.95rem;
    list-style: decimal;
    margin-left: 1rem;
    font-weight: 600;
    line-height: 1.6;
    margin-bottom: 0.4rem;
  }
  #howto .aten_list01 li > span {
    font-weight: normal;
  }
  #howto .aten_list01 .txtS {
    font-size: 0.8rem;
  }
  #howto .aten_tit02 {
    font-size: 1.05rem;
    margin: 1rem 0 .5rem;
  }
  #howto .aten_tit02::before {
    content: "⚠️";
    font-size: 1.12rem;
    margin-right: .2rem;
  }
  #howto .aten_list02 li {
    font-size: 0.83rem;
    list-style: disc;
    margin-left: 1.4rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
  }
  .youtube {
    position: relative;
    padding-bottom: 56.25%;
    padding-top: 0px;
    height: 0;
    overflow: hidden;
    margin-top: 0px;
  }
  .youtube iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }
}