/*------------ sec 1 ------------*/
#sec1 .sec_cont .list_item {
  width: calc((100% - clamp(300px, 31.25vw, 600px)) / 3);
  height: clamp(300px, 18.75vw, 360px);
  flex-direction: column;
  border: 1px solid #ddd;
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  transition: 0.4s;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
#sec1 .sec_cont .list_item::before {
  content: "";
  width: 100%;
  height: 100%;
  position: absolute;
  background-color: rgba(255, 255, 255, 0.94);
  top: 0;
  left: 0;
  z-index: 0;
}
#sec1 .sec_cont .list_item .cont_txt {
  position: relative;
}
#sec1 .sec_cont .list_item span {
  font-size: clamp(16px, 1.04vw, 20px);
  font-weight: 700;
  color: var(--color-point);
}
#sec1 .sec_cont .list_item p {
  font-size: clamp(22px, 1.56vw, 30px);
  font-weight: 700;
}
#sec1 .sec_cont .list_item .hide_txt {
  font-size: clamp(16px, 1.04vw, 20px);
  color: #fff;
  font-weight: 300;
  line-height: 1.5;
  transition: 0.4s;
  opacity: 0;
  height: 0;
  transform: translateY(50px);
  padding-bottom: 0;
}
#sec1 .sec_cont .item1 {
  background-image: url(../img/how_img1.jpg);
}
#sec1 .sec_cont .item2 {
  background-image: url(../img/how_img2.jpg);
}
#sec1 .sec_cont .item3 {
  background-image: url(../img/how_img3.jpg);
}
#sec1 .sec_cont .item4 {
  background-image: url(../img/how_img4.jpg);
}
#sec1 .sec_cont .on {
  width: clamp(280px, 28.13vw, 540px);
  justify-content: flex-end;
  padding: clamp(30px, 2.34vw, 45px) clamp(25px, 2.08vw, 40px);
}
#sec1 .sec_cont .on::before {
  opacity: 0;
  visibility: hidden;
}
#sec1 .sec_cont .on .cont_txt {
  text-align: left;
}
#sec1 .sec_cont .on span {
  color: #fff;
}
#sec1 .sec_cont .on p {
  color: #fff;
  padding-bottom: clamp(25px, 2.6vw, 50px);
}
#sec1 .sec_cont .on .hide_txt {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.5s;
  height: auto;
}

/*------------ sec 2 ------------*/
#sec2 {
  background-color: #f5f7f9;
}
#sec2 .sec_cont .cont_img {
  height: clamp(335px, 22.92vw, 440px);
  width: clamp(280px, 19.01vw, 365px);
}
#sec2 .sec_cont .cont_img img {
  height: 100%;
  object-fit: cover;
}

/* --------------------- RWD --------------------- */
@media (max-width: 900px) {
	#sec1 .sec_cont ul {
		flex-direction: column;
	}
	#sec1 .sec_cont .list_item {
		width: 100%;
		height: 150px;
	}
	#sec1 .sec_cont .list_item:not(:last-child) {
		margin-bottom: 30px;
	}
	#sec1 .sec_cont .list_item .hide_txt {
		font-size: 18px;
	}
	#sec1 .sec_cont .on {
		height: 250px;
	}
}

@media (max-width: 750px) {
	#sec1 .sec_cont .list_item {
		height: clamp(120px, 32.00vw, 240px);
	}
	#sec1 .sec_cont .list_item:not(:last-child) {
		margin-bottom: clamp(20px, 5.33vw, 40px);
	}
	#sec1 .sec_cont .list_item span {
		font-size: clamp(14px, 3.73vw, 28px)
	}
	#sec1 .sec_cont .list_item p {
		font-size: clamp(22px, 5.33vw, 40px);
	}
	#sec1 .sec_cont .list_item .hide_txt {
		font-size: clamp(14px, 4.00vw, 30px);
	}
	#sec1 .sec_cont .on {
		height: clamp(220px, 58.67vw, 440px); 
		padding: clamp(30px, 8.00vw, 60px) clamp(25px, 6.67vw, 50px);
	}
	#sec1 .sec_cont .on p {
		padding-bottom: clamp(20px, 5.33vw, 40px);
	}
	
	#sec2 .sec_cont {
		flex-direction: column;
	}
	#sec2 .sec_cont .cont_img {
		width: clamp(200px, 53.33vw, 400px);
		height: clamp(240px, 64.00vw, 480px);
		margin: 0 auto;
		order: 2;
	}
	#sec2 .sec_cont .sec_tit {
		text-align: center;
	}
	#sec2 .sec_cont .sec_tit span {
		justify-content: center;
	}
}