#sec1 .photo {
  background: url(../img/product/sec1_photo.jpg) no-repeat center center;
  background-size: cover;
  min-height: 450px;
}
#sec2 .photo {
  background: url(../img/product/sec2_photo.jpg) no-repeat center center;
  background-size: cover;
  min-height: 450px;
}
#sec3 .photo {
  background: url(../img/product/sec3_photo.jpg) no-repeat center center;
  background-size: cover;
  min-height: 450px;
}
#sec4 .photo {
  background: url(../img/product/sec4_photo.jpg) no-repeat center center;
  background-size: cover;
  min-height: 450px;
}
/*
===================================================
	tb
===================================================
*/
@media screen and (max-width: 1100px) {
}

/*
===================================================
	sp
===================================================
*/
@media screen and (max-width: 640px) {
}