/* common */
*{
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-size: 16px;
  font-weight: normal;
}
img{
  display: block;
  width: 100%;
}
li{
  list-style-type: none;
}

/* header */
#header{
  background-image: url(../img/header_bg.png);
  background-size: cover;
  background-repeat: no-repeat;
  width: 100%;
  height: 0;
  padding-top: 66.6666666667%;
}

/* main */
#main{
  background-image: url(../img/main_bg.png);
  background-size: cover;
  background-repeat: no-repeat;
  width: 100%;
}
.title{
  width: 45%;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.box{
  background: #fff;
  border: 8px solid #BC7D2B;
  position: relative;
  margin: -5rem auto 0;
  padding: 6rem 0;
  width: 86%;
}
.dec{
  position: absolute;
}

.area1 {
  padding-bottom: 5rem;
}
.area1 .box ul{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  width: 80%;
  margin: 0 auto;
}
.area1 .box ul li{
  width: 44%;
}
.area1 .box ul li:nth-of-type(-n + 2){
  margin-bottom: 3rem;
}
.area1 .box ul li p{
  margin-top: 1rem;
}
.area1 .box ul li img.img_item{
  margin: 1rem auto 0;
}
.area1 .box ul li:nth-child(1) img.img_item{
  width: 34%;
}
.area1 .box ul li:nth-child(2) img.img_item{
  width: 38%;
}
.area1 .box ul li:nth-child(3) img.img_item{
  width: 56%;
}
.area1 .box ul li:nth-child(4) img.img_item{
  width: 54%;
}
.area1 .box .dec1{
  width: 4%;
  left: 5%;
  top: 2%;
}
.area1 .box .dec2{
  width: 16%;
  right: -7%;
  top: 3%;
}
.area1 .box .dec3{
  width: 16%;
  left: -8%;
  top: 48%;
}
.area1 .box .dec4{
  width: 4%;
  right: 5%;
  bottom: -2%;
}

.area2 {
  padding-bottom: 5rem;
}
.area2 .box {
  display: flex;
  justify-content: center;
  padding-bottom: 0;
}
.area2 .box .img_area{
  width: 50%;
}
.area2 .box p{
  width: 30%;
}
.area2 .box .dec1{
  width: 20%;
  left: -6%;
  top: 16%;
}
.area2 .box .dec2{
  width: 20%;
  right: -8%;
  bottom: 12%;
}
.area2 .box .dec3{
  width: 4%;
  left: 50%;
  bottom: -4%;
}

.area3{
  margin-top: -16rem;
  padding-bottom: 3rem;
}
.area3 .title{
  width: 100%;
  position: relative;
}
.area3 .title img:last-child{
  position: absolute;
  width: 30%;
  bottom: 35%;
  left: 34%;
  right: 0;
}
.area3 .box{
  margin: -13.3rem auto 0;
}
.area3 .box .form_area{
  width: 50%;
  margin: 0 auto;
}
.area3 .box .form_area dl{
  display: flex;
  flex-wrap: wrap;
}
.area3 .box .form_area dt{
  width: 30%;
  padding: .6rem 0;
  font-weight: bold;
}
.area3 .box .form_area dd{
  width: 70%;
  margin-bottom: 1.6rem;
}
.area3 .box .form_area dd input{
  width: 100%;
  padding: .6rem;
}
.area3 .box .form_area .btn{
  display: flex;
  justify-content: center;
  padding-top: 2rem;
}
.area3 .box .form_area .btn button{
  background: #FD0000;
  color: #fff;
  width: 40%;
  border: none;
  border-radius: 30px;
  padding: .6rem 0;
  cursor: pointer;
}
.area3 .box .dec1{
  width: 16%;
  right: -7%;
  top: 36%;
}
.area3 .box .dec2{
  width: 16%;
  left: -8%;
  bottom: 9%;
}
.area3 .box .dec3{
  width: 5%;
  left: 23%;
  bottom: 18%;
}
.area3 .box .dec4{
  width: 5%;
  right: 20%;
  bottom: 5%;
}
.area4 {
  padding-bottom: 5rem;
}
.area4 .box ul{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  width: 80%;
  margin: 0 auto;
}
.area4 .box ul li{
  width: 44%;
}
.area4 .box ul li:nth-of-type(-n + 2){
  margin-bottom: 3rem;
}
.area4 .box ul li p{
  margin-top: 1rem;
}
.area4 .box ul li img.img_item{
  margin: 1rem auto 0;
}
.area4 .box ul li:nth-child(1) img.img_item{
  width: 80%;
}
.area4 .box ul li:nth-child(2) img.img_item{
  width: 80%;
}
.area4 .box ul li:nth-child(3) img.img_item{
  width: 80%;
}
.area4 .box ul li:nth-child(4) img.img_item{
  width: 80%;
}
.area4 .box .dec1{
  width: 4%;
  left: 5%;
  top: 2%;
}
.area4 .box .dec2{
  width: 16%;
  right: -7%;
  top: 3%;
}
.area4 .box .dec3{
  width: 16%;
  left: -8%;
  top: 48%;
}
.area4 .box .dec4{
  width: 4%;
  right: 5%;
  bottom: -2%;
}


.over_view{
  color: #fff;
  text-align: center;
  font-size: 1rem;
  padding-bottom: 3rem;
}
.over_view p{
  padding-bottom: .2rem;
}
.over_view p:first-child{
  font-size: 1.6rem;
  padding-bottom: .6rem;
}

@media screen and (max-width: 640px) {
  /* main */
  .box{
    border: 3px solid #BC7D2B;
    margin: -2rem auto 0;
    padding: 2rem 0;
  }

  .area1 {
    padding-bottom: 2rem;
  }
  .area1 .box ul li:nth-of-type(-n + 2){
    margin-bottom: 1rem;
  }
  .area1 .box ul li p{
    font-size: 0.4rem;
  }

  .area4 {
    padding-bottom: 2rem;
  }
  .area4 .box ul li:nth-of-type(-n + 2){
    margin-bottom: 1rem;
  }
  .area4 .box ul li p{
    font-size: 0.4rem;
  }

  .area2 {
    padding-bottom: 2rem;
  }
  .area2 .box {
    flex-direction: column;
  }
  .area2 .box .img_area{
    margin: 0 auto;
  }
  .area2 .box p{
    width: 90%;
    margin: 0 auto 1rem;
    font-size: 0.4rem;
  }

  .area3{
    margin-top: -4rem;
  }
  .area3 .box{
    margin: -3.3rem auto 0;
  }
  .area3 .box .form_area{
    width: 90%;
  }
  .area3 .box .form_area dt{
    font-size: 0.7rem;
    padding: .2rem 0;
    width: 34%;
  }
  .area3 .box .form_area dd{
    width: 65%;
    margin-bottom: 1rem;
  }
  .area3 .box .form_area dd input{
    padding: .2rem;
  }
  .area3 .box .form_area .btn{
    padding: 0;
  }
  .area3 .box .form_area .btn button{
    width: 60%;
    padding: .4rem;
    font-size: .8rem;
  }
}