.contact1{font-family: Roboto;}

.contact1_line{width: 200px;height: 1px;background: #000;}
.contact2{width: 100%;font-family: Roboto;}
.product_box div{width: 90%;margin: 0 auto;}
.product_box img{width: 100%;border-bottom: 1px solid #000;}

.product_text{font-size: 14px;line-height: 24px;color: #000;}

@media screen and (min-width: 645px) {
.box{display: block;}
.m_box{display: none;}
.m_plane{display: none;}
.text_box{padding:300px 0;margin-left: 90px; display: block;}
.contact1_title{font-size: 38px;text-align: left;font-weight: 500;}
.contact1_text{font-size: 14px;text-align: left;margin: 70px 0 30px;letter-spacing: 1.2px;}
.contact2_box{width: 70%;margin: 0 auto;padding: 0 100px;}
.product_box{float: left;width: 33%;margin: 50px 0;}
.product_title{font-size: 24px;margin: 20px 0;color: #000;display: block;}
}
@media screen and (max-width: 640px) {

.text_box{display: block;width: 85%;margin: 0 auto;}
.contact1_title{font-size: 20px;text-align: left;font-weight: 500;}
.contact1_text{font-size: 14px;text-align: left;margin: 3.4rem 0 1.8rem;letter-spacing: 1.2px;}
.contact2_box{width: 90%;margin: 0 auto;padding:;}
.product_box{float: left;width: 90%;margin:1rem 0;}
.product_title{font-size: 18px;margin: 20px 0;color: #000;display: block;}
}