.portfolio-body .section-item-inner {max-width: 1720px;}

.portfolio-pc .section1 {background-color: #F78024;}
.portfolio-pc .section2 .section-item-2 {background-image: url('img/loudclass_2_2_1.png');}
.portfolio-pc .section2 .section-item-3 {background-image: url('img/loudclass_2_3_1.png');}
.portfolio-pc .section3 .section-item {background-image: url('img/loudclass_3_1_1.png');}

.portfolio-mobile .section1 {background-color: #F78024;}