section{
  margin-bottom:0;
}
#MainImg{
  width:100%;
}
#maincontents{
  width:100%;
}
#maincontents img{
  width:100%;
}
#maincontents .sect1{
  background-color:#E1F0F8;
}
#maincontents .sect1 .contents{
  width:90%;
  margin:0 auto;
  padding-top:60px;
  padding-bottom:60px;
}
#maincontents .sect1 .contents .flex-row{
  margin-bottom:60px;
}
#maincontents .sect1 .contents .flex-row > div:first-of-type{
  width:60%;
  margin-right:auto;
  margin-left:auto;
  margin-bottom:30px;
}
#maincontents .sect1 .contents .row{
  margin-bottom:30px;
}

#maincontents .sect2{
  background-color:#29ABE2;
  padding-top:40px;
  padding-bottom:40px;
  position:relative;
}
#maincontents .sect2:after {
  content: " ";
  display: block;
  position: absolute;
  left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  bottom: -30px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 30px 30px 0 30px;
  border-color: #29ABE2 transparent transparent transparent;
  z-index: 9999;
}
#maincontents .sect2 .contents{
  width:90%;
  margin:0 auto;
}
#maincontents .sect2 .contents .button{
  margin-left:auto;
  margin-right:auto;
  position:relative;
}

#Sect4{
  position:relative;
  padding-top:30px;
  padding-bottom:50px;
  background-color:#d6ebf7;
  z-index:1;
}
#Sect4 .contents{
  width:90%;
  margin-left:auto;
  margin-right:auto;
}
#Sect4 .button{
  margin-top:35px;
  margin-bottom:100px;
}
#Sect4 .button > div{
  margin-bottom:10px;
}
#Sect4 .btn-box > div{
  position:relative;
  z-index:3;
  margin-bottom:10px;
}
#Sect4 .background-image{
  position:absolute;
  left:0;
  bottom:0;
  z-index:2;
}
#Sect4 .background-image img{
  width:100%;
}

#maincontents .tooltip{
  background-color:rgba(255,255,255,0.8);
  position:absolute;
  left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  top:-30px;
  padding:5px 25px;
  font-weight:bold;
  font-family: "ＭＳ Ｐゴシック", "MS PGothic", "sans-serif";
  display:none;
}
#maincontents .tooltip:after{
  content:" ";
  display:block;
  position:absolute;
  left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  top:24px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 15px 10px 0 10px;
  border-color: rgba(255,255,255,0.8) transparent transparent transparent;
}