@media screen and (min-width:751px){

#content {
  max-width: 900px; 
  margin: 50px auto 150px auto; 
  }

.inner-wrap {
  width: 100%; 
  margin: 0 auto 80px auto; 
  }

/* 見出し */
h2 { 
  font-size: 55px;
  font-weight: lighter;
  margin-bottom: 30px; 
  padding-left: 1px; 
  letter-spacing: 0.03em; 
}

h3 { 
  font-size: 16px;
  margin: 0; 
  letter-spacing: 0.03em; 
  border-top: 1px solid #E0E0E0;  
  padding: 20px 0 5px 0; 
}

/* works */
#product { 
  max-width: 100%;
  display: flex;
  flex-flow: wrap;
  justify-content: space-between;
}

#product div { 
  position: relative;
  width: 30%;
  margin-bottom: 70px; 
}

#product div::before {
  content: "";
  display: block;
  padding-top: 100%;
}

#product img { 
  position: absolute;
  width: 100%;
  height: auto;
  top: 0;
  object-fit: cover;
}

#product p {
  font-size: 13px; 
  margin: 20px 0 -20px 0; 
}

#product .cliant {
  font-weight: bold; 
}

.emptybox {
  height: 0; 
}

/* product-detail */

.product-detail {
  display: flex; 
}

.image-area {
  width: 58%;
}

.image-area .item1 img {
  width: 100%; 
  margin-bottom: -5%; 
}

.image-area .item3 img {
  width: 100%; 
  margin-bottom: -12%; 
}

.product-spec { 
  float: left; 
  width: 36%;
  margin-right: 6%;
}

.title { 
  font-size: 14px;
  font-weight: normal; 
  letter-spacing: 0.03em; 
  border-top: 1px solid #E0E0E0;  
  padding: 20px 0 5px 0; 
}

.spec {
  font-size: 14px;
  font-weight: normal; 
  margin-bottom: 40px; 
  line-height: 1.7; 
  letter-spacing: 0.03em; 
  border-top: 1px solid #E0E0E0;  
  padding-top: 20px; 
  border-bottom: 1px solid #E0E0E0;  
  padding-bottom: 20px; 
}

}



@media screen and (max-width:750px){

#content {
  margin: 80px auto; 
  }

.inner-wrap {
  margin: 0 auto 60px auto; 
  }

/* 見出し */
h2 { 
  font-size: 45px;
  font-weight: lighter;
  margin-bottom: 10px; 
  padding-left: 1px; 
  letter-spacing: 0.03em; 
}

h3 { 
  font-size: 16px;
  margin: 0; 
  letter-spacing: 0.03em; 
  border-top: 1px solid #E0E0E0;  
  padding-top: 18px; 
}

/* works */
#product { 
  max-width: 100%;
  display: flex;
  flex-flow: wrap;
  justify-content: space-between;
}

#product div { 
  position: relative;
  width: 47%;
  margin-bottom: 12%; 
}

#product div::before {
  content: "";
  display: block;
  padding-top: 100%;
}

#product img { 
  position: absolute;
  width: 100%;
  height: auto;
  top: 0;
  object-fit: cover;
}

#product p {
  font-size: 13px; 
  margin: 6% 0 -6% 0; 
}

#product .cliant {
  font-weight: bold; 
}

.emptybox {
  height: 0; 
}

/* product-detail */

.product-detail {
  display: flex; 
  flex-direction: column; 
}

.image-area {
  display: contents; 
}

.image-area .item1 img {
  width: 100%; 
}

.image-area .item3 img {
  width: 100%; 
  margin-bottom: -10%; 
}

.product-spec { 
  margin: 30px 0 15px 0;
}

.title { 
  font-size: 14px;
  font-weight: normal; 
  letter-spacing: 0.03em; 
  border-top: 1px solid #E0E0E0;  
  padding-top: 18px; 
}

.spec {
  font-size: 14px;
  font-weight: normal; 
  margin: 10px 0 30px 0 ; 
  line-height: 1.7; 
  letter-spacing: 0.03em; 
  border-top: 1px solid #E0E0E0;  
  padding-top: 20px; 
  border-bottom: 1px solid #E0E0E0;  
  padding-bottom: 20px; 
}

.item1 {
  order: 1; 
}

.item2 {
  order: 2; 
}

.item3 {
  order: 3; 
}


}