@charset "utf-8";

:root {
  --color-main: #222222;
  --color-bland_purple: #551B48;
  --color-skyblue: #3FB0CC;
  --color-orange: #F58200;
  --color-olive: #A79137;
  --color-green: #83A629;
  --color-gray: #F5F5F5;
  --color-navy: #242B78;
  --color-turquoise: #00AFCC;
  --font-sans: "Noto Sans JP", sans-serif;
}

/* =============================================
knowledge
============================================= */

/* ----- ピックアップ ----- */
main.knowledge section.pickUp {
  background-image: url(../images/bg_knowledge.jpg);
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

main.knowledge section.pickUp div.container {
  padding:min(4rem, 40px) 0;
}

main.knowledge section.pickUp h2.inner_h2_s {
color:#fff;
}


main.knowledge section.pickUp div.article_wrap {
  margin-top: min(2.0rem, 20px);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: min(2.0rem, 20px);
}

main.knowledge section.pickUp div.article_wrap a.article_item {
  display: grid;
  grid-template-rows: subgrid;
  grid-row: span 5;
  gap: 0;
  width: 100%;
  background-color: #fff;
  padding: min(1.2rem, 12px) min(1.2rem, 12px) min(2rem, 20px);
  box-shadow: 0 0 min(1rem, 10px) rgba(0, 0, 0, 0.1);
  overflow: hidden;
  color: var(--color-main);
}

main.knowledge section.pickUp div.article_wrap a.article_item div.img_area {
  width: 100%;
  height: min(31rem, 310px);
  overflow: hidden;
}

main.knowledge section.pickUp div.article_wrap a.article_item div.img_area img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

main.knowledge section.pickUp div.article_wrap a.article_item span.knowledge_category {
  margin-top: min(1rem, 10px);
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: var(--color-brand_purple);
  color: #fff;
  font-size: min(1.2rem, 12px);
  font-weight: 700;
  letter-spacing: 0.04em;
}

main.knowledge section.pickUp div.article_wrap a.article_item p.name {
  margin-top: min(1rem, 10px);
  font-size: min(1.2rem, 12px);
  line-height: 1.2;
  font-weight: 400;
}

main.knowledge section.pickUp div.article_wrap a.article_item h3.article_ttl {
  margin-top: min(1rem, 10px);
  font-size: min(1.6rem, 16px);
  line-height: 1.2;
}

main.knowledge section.pickUp div.article_wrap a.article_item div.tag_area {
  margin-top: min(2.0rem, 20px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: min(.4rem, 4px);
}

main.knowledge section.pickUp div.article_wrap a.article_item div.tag_area span {
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: #fff;
  color: var(--color-brand_purple);
  border: min(.1rem, 1px) solid var(--color-brand_purple);
  font-size: min(1.2rem, 12px);
  font-weight: 400;
}

main.knowledge section.pickUp h3.article_h3 {
  margin-top: min(4.0rem, 40px);
  font-size: min(1.8rem, 18px);
  display: flex;
  align-items: center;
  gap: min(.8rem, 8px);
  cursor: pointer;
}

main.knowledge section.pickUp h3.article_h3::before {
  content: '';
  background-image: url(../images/icon_arrow_down_black.png);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: min(2.0rem, 20px);
  height: min(1.0rem, 10px);
  transition: all .8s;
}

main.knowledge section.pickUp h3.article_h3.active::before {
  transform: rotate(180deg);
}

main.knowledge section.pickUp div.tag_box {
  margin-top: 0;
  width: 100%;
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  pointer-events: none;
  transition: all .4s;
}

main.knowledge section.pickUp div.tag_box.active {
  margin-top: min(2.0rem, 20px);
  grid-template-rows: 1fr;
  opacity: 1;
  pointer-events: auto;
}

main.knowledge section.pickUp div.tag_box div.tag_wrap {
  min-height: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: min(.4rem, 4px);
}

main.knowledge section.pickUp div.tag_box span {
  font-size: min(1.2rem, 12px);
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: #fff;
  color: var(--color-brand_purple);
  border: min(.1rem, 1px) solid var(--color-brand_purple);
  font-size: min(1.2rem, 12px);
  font-weight: 400;
}

/* ----- カテゴリ別記事一覧 ----- */
.bg_gray {
background-color: #F5F5F5;
}

div.knowledge_wrap {
  margin-top: min(4rem, 40px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: min(1.5rem, 15px);
}

div.knowledge_wrap.knowledge_wrap_s {
  grid-template-columns: repeat(2, 1fr);
  gap: min(2.4rem, 24px);
}

div.knowledge_wrap.knowledge_wrap_xs {
  grid-template-columns: repeat(1, 1fr);
  gap: min(6.0rem, 60px);
}

div.knowledge_category_block {
  margin-top: min(8rem, 80px);
}

div.knowledge_category_block h3.inner_h3 {
  margin-top: 0;
}

div.knowledge_category_block p.common_txt {
  margin-top: min(4rem, 40px);
}

a.knowledge_link_large {
	max-width: min(80rem, 800px);
	padding: min(3.0rem, 30px);
	border: 1px solid #DBDBDB;
	border-radius: 999px;
	display: flex;
	justify-content: center;
	align-items: center;
	margin: 0 auto;
	position: relative;
	flex-direction: column;
	background-color: #fff;	
}
a.knowledge_link_large::after {
	content: "";
	width: min(4.0rem, 40px);
height: min(4.0rem, 40px);
	position: absolute;
	right: min(4.5rem, 45px);
	top: 0;
	bottom: 0;
	margin: auto;
	background-image: url("../images/icon_arrow_link_large.png");
	background-position: center center;
	background-size: contain;
	background-repeat: no-repeat;
	display: block;
	z-index: 1;
}
a.knowledge_link_large p {
	text-align: center;
	display: inline;
}
a.knowledge_link_large p.knowledge_link_large_ttl {
	font-size: min(2.0rem, 20px);
	font-weight: 700;
	position: relative;
	padding-left: 1.5em;
}
a.knowledge_link_large p.knowledge_link_large_ttl::before {
	content: "";
	width: min(2.0rem, 20px);
	height: min(0.3rem, 3px);
	background-color: var(--color-brand_purple);
	display: block;
	position: absolute;
	left:0;
	top:0;
	bottom:0;
	margin: auto;	
}
a.knowledge_link_large p.knowledge_link_large_txt {
	font-size: min(1.6rem, 16px);
	font-weight: 400;
	margin-top: min(1.5rem, 15px);
	line-height: 1.7;
}

div.knowledge_wrap a.article_item {
  display: grid;
  grid-template-rows: subgrid;
  grid-row: span 5;
  gap: 0;
  width: 100%;
  background-color: #fff;
  padding: min(1.2rem, 12px) min(1.2rem, 12px) min(2rem, 20px);
  box-shadow: 0 0 min(1rem, 10px) rgba(0, 0, 0, 0.1);
  overflow: hidden;
  color: var(--color-main);
}

div.knowledge_wrap a.article_item div.img_area {
  width: 100%;
  height: min(21rem, 210px);
  overflow: hidden;
  background-color: #F5F5F5;
}

div.knowledge_wrap a.article_item div.img_area img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

div.knowledge_wrap a.article_item span.knowledge_category {
  margin-top: min(1rem, 10px);
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: var(--color-brand_purple);
  color: #fff;
  font-size: min(1.2rem, 12px);
  font-weight: 700;
  letter-spacing: 0.04em;
}

div.knowledge_wrap a.article_item p.name {
  margin-top: min(1rem, 10px);
  font-size: min(1.2rem, 12px);
  line-height: 1.2;
  font-weight: 400;
}

div.knowledge_wrap a.article_item h3.article_ttl {
  margin-top: min(1rem, 10px);
  font-size: min(1.6rem, 16px);
  line-height: 1.2;
}

div.knowledge_wrap a.article_item div.tag_area {
  margin-top: min(2.0rem, 20px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: min(.4rem, 4px);
}

div.knowledge_wrap a.article_item div.tag_area span {
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: #fff;
  color: var(--color-brand_purple);
  border: min(.1rem, 1px) solid var(--color-brand_purple);
  font-size: min(1.2rem, 12px);
  font-weight: 400;
}

div.knowledge_wrap h3.article_h3 {
  margin-top: min(4.0rem, 40px);
  font-size: min(1.8rem, 18px);
  display: flex;
  align-items: center;
  gap: min(.8rem, 8px);
  cursor: pointer;
}

div.knowledge_wrap h3.article_h3::before {
  content: '';
  background-image: url(../images/icon_arrow_down_black.png);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: min(2.0rem, 20px);
  height: min(1.0rem, 10px);
  transition: all .8s;
}

div.knowledge_wrap h3.article_h3.active::before {
  transform: rotate(180deg);
}

div.knowledge_wrap div.tag_box {
  margin-top: 0;
  width: 100%;
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  pointer-events: none;
  transition: all .4s;
}

div.knowledge_wrap div.tag_box.active {
  margin-top: min(2.0rem, 20px);
  grid-template-rows: 1fr;
  opacity: 1;
  pointer-events: auto;
}

div.knowledge_wrap div.tag_box div.tag_wrap {
  min-height: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: min(.4rem, 4px);
}

div.knowledge_wrap div.tag_box span {
  font-size: min(1.2rem, 12px);
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: #fff;
  color: var(--color-brand_purple);
  border: min(.1rem, 1px) solid var(--color-brand_purple);
  font-size: min(1.2rem, 12px);
  font-weight: 400;
}

@media (max-width: 799px) {
/* ----- ピックアップ ----- */
  main.knowledge section.pickUp {
    background-image: url(../images/bg_knowledge_sp.jpg);
    background-size: cover;
    background-position: center;
  }
		
		main.knowledge section.pickUp div.container {
    padding: 4rem 2rem;
  }

  main.knowledge section.pickUp div.article_wrap {
    margin-top: 2rem;
    grid-template-columns: repeat(1, 1fr);
    gap: 2rem;
  }
  
  main.knowledge section.pickUp div.article_wrap a.article_item {
    display: block;
    border-radius: .5rem;
    padding: 1rem 1rem 2rem;
    box-shadow: 0 0 1rem rgba(0, 0, 0, 0.1);
  }
  
  main.knowledge section.pickUp div.article_wrap a.article_item div.img_area {
    height: 18rem;
  }
  
  main.knowledge section.pickUp div.article_wrap a.article_item span.knowledge_category {
    margin-top: 1rem;
    padding: 0.4rem 0.8rem;
    font-size: 1.2rem;
  }
  
  main.knowledge section.pickUp div.article_wrap a.article_item p.name {
    margin-top: 1rem;
    font-size: 1.2rem;
  }
  
  main.knowledge section.pickUp div.article_wrap a.article_item h3.article_ttl {
    margin-top: 1rem;
    font-size: 1.6rem;
  }
  
  main.knowledge section.pickUp div.article_wrap a.article_item div.tag_area {
    margin-top: 2rem;
    gap: .4rem;
  }
  
  main.knowledge section.pickUp div.article_wrap a.article_item div.tag_area span {
    padding: 0.4rem 0.8rem;
    border: .1rem solid var(--color-brand_purple);
    font-size: 1.2rem;
  }
  
  main.knowledge section.pickUp h3.article_h3 {
    margin-top: 4rem;
    font-size: 1.6rem;
    gap: .8rem;
  }
  
  main.knowledge section.pickUp h3.article_h3::before {
    width: 1.6rem;
    height: .8rem;
  }
  
  main.knowledge section.pickUp div.tag_box {
    margin-top: 0;
    width: 100%;
  }
  
  main.knowledge section.pickUp div.tag_box.active {
    margin-top: 2rem;
  }
  
  main.knowledge section.pickUp div.tag_box div.tag_wrap {
    gap: .4rem;
  }
  
  main.knowledge section.pickUp div.tag_box span {
    font-size: 1.2rem;
    padding: 0.4rem 0.8rem;
    border: .1rem solid var(--color-brand_purple);
  }
  
  div.knowledge_wrap, 
  div.knowledge_wrap.knowledge_wrap_s, 
  div.knowledge_wrap.knowledge_wrap_xs {
    margin-top: 4rem;
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 2rem;
  }
  
  div.knowledge_wrap {
    margin-top: 2rem;
    grid-template-columns: repeat(1, 1fr);
    gap: 2rem;
  }
  
  div.knowledge_wrap a.article_item {
    display: block;
    padding: 1rem 1rem 2rem;
    box-shadow: 0 0 1rem rgba(0, 0, 0, 0.1);
  }
  
  div.knowledge_wrap a.article_item div.img_area {
    height: 18rem;
  }
  
  div.knowledge_wrap a.article_item span.knowledge_category {
    margin-top: 1rem;
    padding: 0.4rem 0.8rem;
    font-size: 1.2rem;
  }
  
  div.knowledge_wrap a.article_item p.name {
    margin-top: 1rem;
    font-size: 1.2rem;
  }
  
  div.knowledge_wrap a.article_item h3.article_ttl {
    margin-top: 1rem;
    font-size: 1.6rem;
  }
  
  div.knowledge_wrap a.article_item div.tag_area {
    margin-top: 2rem;
    gap: .4rem;
  }
  
  div.knowledge_wrap a.article_item div.tag_area span {
    padding: 0.4rem 0.8rem;
    border: .1rem solid var(--color-brand_purple);
    font-size: 1.2rem;
  }
  
  div.knowledge_wrap h3.article_h3 {
    margin-top: 4rem;
    font-size: 1.6rem;
    gap: .8rem;
  }
  
  div.knowledge_wrap h3.article_h3::before {
    width: 1.6rem;
    height: .8rem;
  }
  
  div.knowledge_wrap div.tag_box {
    margin-top: 0;
    width: 100%;
  }
  
  div.knowledge_wrap div.tag_box.active {
    margin-top: 2rem;
  }
  
  div.knowledge_wrap div.tag_box div.tag_wrap {
    gap: .4rem;
  }
  
  div.knowledge_wrap div.tag_box span {
    font-size: 1.2rem;
    padding: 0.4rem 0.8rem;
    border: .1rem solid var(--color-brand_purple);
  }
		
				div.knowledge_category_block {
					margin-top: 4rem;
			}

					div.knowledge_category_block p.common_txt {
					margin-top: 2rem;
			}
		
a.knowledge_link_large {
	padding: 2.5rem 6rem 2.5rem 3rem;
	border-radius: 3rem;
}
a.knowledge_link_large::after {
	width: 3.0rem;
height: 3.0rem;
	right: 1.5rem;
}
a.knowledge_link_large p.knowledge_link_large_ttl {
	font-size: 2.0rem;
}
a.knowledge_link_large p.knowledge_link_large_ttl::before {
	width: 2.0rem;
	height: 0.3rem;
}
a.knowledge_link_large p.knowledge_link_large_txt {
	font-size: 1.6rem;
	margin-top: 1.5rem;
	text-align: left;
}

}

/* ----- knowledge_under ----- */

main.knowledge_under {
background-color: #F5F5F5;
}

main.knowledge_under div.knowledge_wrap {
  margin-top: 0;
}

/*知識を深めるMV*/
main.knowledge_under section.inner_mv {
  background-image: url(../images/about/outline/bg_mv_outline.jpg);
  background-size: min(400rem, 4000px);
  background-position: center top;
  background-repeat: no-repeat;
}



/*知識を深める タイトル*/
main.knowledge_under .inner_ttl_set {
max-width: 1140px;
margin: 0 auto;
padding: min(8rem, 80px) min(2rem, 20px) 0;
}
main.knowledge_under .inner_ttl_set h2.inner_h2_l {
	font-size: min(3rem, 30px);
	border-bottom: 1px solid #222;
	padding-bottom: min(2rem, 20px);
}
main.knowledge_under .inner_ttl_set h2.inner_h2_l span {
	font-size: min(2rem, 20px);
	display: block;
	margin-bottom: min(2rem, 20px);
}
main.knowledge_under .inner_ttl_set p.lead_txt {
	font-size: min(1.6rem, 16px);
	font-weight: 400;
	margin-top: min(4rem, 40px);
}

div.knowledge_under_link {
  margin-top: min(8rem, 80px);
  padding-top: min(4rem, 40px);
  border-top: min(.1rem, 1px) solid var(--color-main);
  display: flex;
  justify-content: center;
  align-items: center;
}

@media (max-width: 799px) {
/*知識を深めるMV*/
main.outline section.inner_mv  {
		background-image: url(../images/about/outline/bg_mv_outline.jpg);
		background-size: min(400rem, 4000px);
		background-position: center top;
		background-repeat: no-repeat;
}

/*知識を深める タイトル*/
main.knowledge_under .inner_ttl_set {
		width: 100%;
		padding: 4rem 2rem 0;
}
main.knowledge_under .inner_ttl_set h2.inner_h2_l {
	font-size: 2rem;
	padding-bottom: 1.5rem;
}
main.knowledge_under .inner_ttl_set h2.inner_h2_l span {
	font-size: 1.6rem;
	margin-bottom: 1.5rem;
}
main.knowledge_under .inner_ttl_set p.lead_txt {
	font-size: 1.4rem;
	margin-top: 2rem;
}
  
  div.knowledge_under_link {
    margin-top: 6rem;
    padding: 0;
    border: none;
  }
}

/* ----- knowledge_branding ----- */

main.branding a.branding_item {
  padding: min(3.2rem, 32px) min(2.4rem, 24px);
  display: block;
  box-shadow: 0 0 min(2.0rem, 20px) rgba(0, 0, 0, .16);
		background-color: #fff;
}

main.branding a.branding_item h3.branding_ttl {
  font-size: min(2rem, 20px);
  font-weight: 700;
  line-height: 1.6;
  padding-bottom: min(1rem, 10px);
  border-bottom: min(.1rem, 1px) solid var(--color-main);
}

main.branding a.branding_item div.branding_wrap {
  margin-top: min(2rem, 20px);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  align-items: start;
  gap: min(1.6rem, 16px);
}

main.branding a.branding_item div.branding_wrap div.bnr_area {
  width: 100%;
  height: min(21rem, 210px);
  border-radius: 0;
background-color: #F5F5F5;
}

main.branding a.branding_item div.branding_wrap div.bnr_area img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  border-radius: 0;
}

main.branding a.branding_item p.speaker strong {
	display: block;
	font-size: min(1.6rem, 16px);
	line-height: 1.4;
	font-weight: 700;
	text-align: left;
  margin-top: min(1rem, 10px);
}

main.branding a.branding_item p.speaker span {
  display: block;
  margin-top: min(1rem, 10px);
  font-size: min(1.2rem, 12px);
  font-weight: 400;
  line-height: 1.4;
	text-align: left;
}

main.branding a.branding_item .common_txt {
  margin-top: 0 !important;
}

main.branding a.branding_item .common_txt p {
  margin-top: 0 !important;
  font-size: min(1.4rem, 14px);
}

main.branding a.branding_item div.tag_area {
  margin-top: min(2.0rem, 20px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: min(.4rem, 4px);
}

main.branding a.branding_item div.tag_area span {
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: #fff;
  color: var(--color-brand_purple);
  border: min(.1rem, 1px) solid var(--color-brand_purple);
  font-size: min(1.2rem, 12px);
  font-weight: 400;
}

@media (max-width: 799px) {
  main.branding a.branding_item {
    padding: 2rem;
  }
  
  main.branding a.branding_item h3.branding_ttl {
    font-size: 1.6rem;
    line-height: 1.6;
    padding-bottom: .4rem;
    border-bottom: .1rem solid var(--color-main);
  }
  
  main.branding a.branding_item div.branding_wrap {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 2rem;
  }
  
  main.branding a.branding_item div.branding_wrap div.bnr_area {
    width: 100%;
    height: 16rem;
  }
  
  main.branding a.branding_item div.branding_wrap p.speaker strong {
    font-size: 1.6rem;
    line-height: 1.4;
  }
  
  main.branding a.branding_item div.branding_wrap p.speaker span {
    margin-top: 1.6rem;
    font-size: 1.6rem;
    line-height: 1.4;
  }
  
  main.branding a.branding_item p.common_txt {
    margin-top: 2rem;
  }
  
  main.branding a.branding_item p.branding_tag {
    margin-top: 2rem;
    gap: .4rem;
  }
  
  main.branding a.branding_item p.branding_tag span {
    font-size: 1.2rem;
    padding: .4rem 2.4rem;
    border: .1rem solid var(--color-main);
  }
}

/* ----- expert_word ----- */

main.word section.word div.search_area {
  margin: 0 auto 0;
		padding:min(3.0rem, 30px) 0;
  max-width: min(80rem, 800px);
  height: min(14rem, 140px);
  background-color: #fff;
  display: flex;
  flex-direction: column;
  gap: min(1rem, 10px);
  justify-content: center;
  align-items: center;
}

main.word section.word div.search_area input {
  width: min(60rem, 600px);
  height: min(6rem, 60px);
  border: 1px solid #D1D1D1;
  padding: min(1.5rem, 15px) min(2rem, 20px) min(1.5rem, 15px) min(6rem, 60px);
  font-size: min(1.8rem, 18px);
  font-weight: 700;
  background-color: #fff;
  background-image: url(../images/icon_search.png);
  background-size: min(3.0rem, 30px);
  background-position: min(1.6rem, 16px) center;
  background-repeat: no-repeat;
}

main.word section.word div.search_area input:focus {
  outline: none;
}

main.word section.word div.search_area input::placeholder {
  color: #B5B5B5;
  font-size: min(1.6rem, 16px);
		font-weight: 400;
}

main.word section.word div.search_area .common_txt {
  font-size: min(1.4rem, 14px);
}

main.word section.word nav.word_nav {
  margin: min(4rem, 40px) auto 0;
  width: 100%;
}

main.word section.word nav.word_nav ul.word_nav_ul {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: min(.8rem, 8px);
  align-items: center;
  max-width: min(80rem, 800px);
  margin: 0 auto;
}

main.word section.word nav.word_nav ul.word_nav_ul li.word_nav_li a.word_nav_link {
  display: block;
  width: 100%;
  height: min(4rem, 40px);
  background-color: #fff;
  color: var(--color-main);
  font-size: min(1.6rem, 16px);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
		border: 1px solid var(--color-main);
}

main.word section.word nav.word_nav ul.word_nav_ul li.word_nav_li a.word_nav_link::after {
  content: '';
  display: block;
  position: absolute;
  background-image: url(../images/icon_arrow_right_black.png);
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  width: min(.8rem, 8px);
  height: min(1.6rem, 16px);
  top: 0;
  bottom: 0;
  margin: auto;
  right: 0;
  transform: translateX(-100%);
}

main.word section.word div.term_box {
  margin: min(8rem, 80px) auto 0;
}

main.word section.word div.term_box ul.term_wrap {
display: flex;
flex-direction: column;
gap:min(4rem, 40px);
}

main.word section.word div.term_box ul.term_wrap li.term_item {
	padding: min(4rem, 40px);
	background-color: #fff;
	box-shadow: 0 0 min(1rem, 10px) rgba(0, 0, 0, 0.1);
}

main.word section.word div.term_box ul.term_wrap li.term_item h2.inner_h2_s {
    font-size: min(2rem, 20px);
}

main.word section.word div.term_box ul.term_wrap li.term_item p.common_txt {
  margin-top: min(2rem, 20px);
}

main.word section.word div.term_box ul.term_wrap li.term_item p.common_txt a {
  text-decoration: underline;
}

main.word section.word div.term_box ul.term_wrap li.term_item div.term_image {
		max-width: min(80rem, 800px);
		margin:min(2rem, 20px) auto 0;
}

@media (max-width: 799px) {
  main.word section.word div.search_area {
    width: 100%;
    height: 14rem;
    gap: 0.8rem;
  }
  
  main.word section.word div.search_area input {
    width: 90%;
    height: 6rem;
    padding: 0 1rem 0 4rem;
    font-size: 1.4rem;
    background-size: 2rem;
    background-position: 1rem center;
  }
  
  main.word section.word div.search_area input::placeholder {
    font-size: 1.4rem;
  }
  
  main.word section.word div.search_area p.common_txt {
    width: 90%;
    line-height: 1.4;
    font-size: 1.2rem;
  }
  
  main.word section.word nav.word_nav {
    margin: 3rem auto 0;
  }
  
  main.word section.word nav.word_nav ul.word_nav_ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
  }
  
  main.word section.word nav.word_nav ul.word_nav_ul li.word_nav_li a.word_nav_link {
    height: 4rem;
    font-size: 1.6rem;
  }
  
  main.word section.word nav.word_nav ul.word_nav_ul li.word_nav_li a.word_nav_link::after {
    width: 0.8rem;
    height: 1.6rem;
    transform: translateX(-100%);
  }
  
  main.word section.word div.term_box {
    margin: 6rem auto 0;
  }
  
  main.word section.word div.term_box ul.term_wrap li.term_item {
    padding: 2.4rem;
  }

  main.word section.word div.term_box ul.term_wrap li.term_item h2.inner_h2_s {
    font-size: 2rem;
  }

  main.word section.word div.term_box ul.term_wrap li.term_item p.common_txt {
    margin-top: 2rem;
  }
  
  main.word section.word div.term_box ul.term_wrap li.term_item div.term_image {
    margin-top: 2rem;
  }
}

/* ----- book_recommended ----- */

main.recommended div.recommended_wrap {
  margin-top: min(4rem, 40px);
  border-left: 1px solid #CCCCCC;
  border-top: 1px solid #CCCCCC;
		}

main.recommended div.recommended_wrap div.recommended_item {
	padding: min(1.6rem, 16px);
	border-right: 1px solid #CCCCCC;
	border-bottom: 1px solid #CCCCCC;
	background-color: #fff;
}

main.recommended div.recommended_wrap div.recommended_item div.recommended_box {
  background-color: #F0F0F0;
  padding: min(1.6rem, 16px) min(2.4rem, 24px);
  display: flex;
  align-items: start;
  gap: min(2rem, 20px);
}

main.recommended div.recommended_wrap div.recommended_item div.recommended_box a.book_cover{
  display: block;
  width: min(16rem, 160px);
  height: min(24rem, 240px);
}

main.recommended div.recommended_wrap div.recommended_item div.recommended_box a.book_cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc {
  flex: 1;
}

main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc p.book_date {
  font-size: min(1.4rem, 14px);
  font-weight: 400;
}

main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc p.book_date span {
  color: #FF0000;
  margin-right: min(0.8rem, 8px);
}

main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc p.book_ttl strong {
  display: block;
  font-size: min(2.0rem, 20px);
  font-weight: 700;
  line-height: 1.2;
  margin-top: min(1rem, 10px);
}

main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc p.book_ttl span {
  display: block;
  font-size: min(1.6rem, 16px);
  font-weight: 400;
  line-height: 1.6;
  margin-top: min(2rem, 20px);
}

main.recommended a.recommend_link {
  margin: min(2rem, 20px) auto min(1rem, 10px) auto;
  width: min(18rem, 180px);
  height: min(4rem, 40px);
  font-size: min(1.6rem, 16px);
  padding: 0;
}

/* ----- */

main.recommended div.recommended_wrap_s {
  margin: min(4rem, 40px) 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-left: min(.1rem, 1px) solid #CCCCCC;
}

main.recommended div.recommended_wrap_s div.recommended_item_s {
	display: grid;
	grid-template-rows: subgrid;
	grid-row: span 4;
	padding: min(1rem, 10px);
	border-right: min(.1rem, 1px) solid #CCCCCC;
	border-bottom: min(.1rem, 1px) solid #CCCCCC;
	background-color: #fff;
}

main.recommended div.recommended_wrap_s div.recommended_item_s:nth-child(1),
main.recommended div.recommended_wrap_s div.recommended_item_s:nth-child(2),
main.recommended div.recommended_wrap_s div.recommended_item_s:nth-child(3) {
	border-top: min(.1rem, 1px) solid #CCCCCC;
}

main.recommended div.recommended_wrap_s div.recommended_item_s a.book_cover {
  display: block;
  width: 100%;
  padding: min(2rem, 20px) 0;
  background-color: #F0F0F0;
}

main.recommended div.recommended_wrap_s div.recommended_item_s a.book_cover div.img_area  {
  margin: 0 auto;
  width: min(17rem, 170px);
  height: min(24rem, 240px);
}

main.recommended div.recommended_wrap_s div.recommended_item_s a.book_cover div.img_area img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

main.recommended div.recommended_wrap_s div.recommended_item_s p.book_ttl {
  margin-top: min(2rem, 20px);
  font-size: min(1.6rem, 16px);
  font-weight: 700;
  line-height: 1.2;
}

main.recommended div.recommended_wrap_s div.recommended_item_s p.book_ttl small {
  display: block;
  margin-top: min(0.8rem, 8px);
  font-weight: 400;
  line-height: 1.2;
}

main.recommended div.recommended_wrap_s div.recommended_item_s p.author {
  margin-top: min(1rem, 10px);
  font-size: min(1.4rem, 14px);
  font-weight: 400;
  line-height: 1.2;
}

main.recommended div.recommended_wrap_s div.recommended_item_s p.author a {
  display: block;
  margin-top: min(.4rem, 4px);
  font-size: min(1.3rem, 13px);
  text-decoration: underline;
}

@media (max-width: 799px) {
  main.recommended div.recommended_wrap {
    margin-top: 4rem;
  }
  
  main.recommended div.recommended_wrap div.recommended_item {
    padding: 1rem;
  }
		
		main.recommended div.recommended_wrap_s div.recommended_item_s:nth-child(3) {
	border-top: none;
}
  
  main.recommended div.recommended_wrap div.recommended_item div.recommended_box {
    padding: 2rem;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  
  main.recommended div.recommended_wrap div.recommended_item div.recommended_box a.book_cover{
    width: 50%;
    height: 23rem;
  }
  
  main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc {
    width: 100%;
  }
  
  main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc p.book_date {
    font-size: 1.2rem;
  }
  
  main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc p.book_date span {
    color: #FF0000;
    margin-right: 0.4rem;
  }
  
  main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc p.book_ttl strong {
    font-size: 1.6rem;
    line-height: 1.2;
    margin-top: 1rem;
  }
  
  main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc p.book_ttl span {
    font-size: 1.4rem;
    line-height: 1.4;
    margin-top: 2rem;
  }
  
  main.recommended div.recommended_wrap div.recommended_item div.recommended_box div.book_desc a.recommend_link {
    margin: 3.2rem 0 0 auto;
    width: 16rem;
    height: 3.2rem;
    font-size: 1.3rem;
  }

  /* ----- */

  main.recommended div.recommended_wrap_s {
    margin-top: 4rem;
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
  }
  
  main.recommended div.recommended_wrap_s div.recommended_item_s {
    display: grid;
    grid-template-rows: subgrid;
    grid-row: span 4;
    padding: 1rem;
  }
  
  main.recommended div.recommended_wrap_s div.recommended_item_s a.book_cover {
    display: block;
    width: 100%;
    padding: 1rem;
    background-color: #F0F0F0;
  }
  
  main.recommended div.recommended_wrap_s div.recommended_item_s a.book_cover div.img_area  {
    margin: 0 auto;
    width: 100%;
    height: 18rem;
  }
  
  main.recommended div.recommended_wrap_s div.recommended_item_s a.book_cover div.img_area img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
  }
  
  main.recommended div.recommended_wrap_s div.recommended_item_s p.book_ttl {
    margin-top: 2rem;
    font-size: 1.4rem;
  }
  
  main.recommended div.recommended_wrap_s div.recommended_item_s p.book_ttl small {
    margin-top: 0.4rem;
  }
  
  main.recommended div.recommended_wrap_s div.recommended_item_s p.author {
    margin-top: 0.8rem;
    font-size: 1.2rem;
  }

  main.recommended a.recommend_link {
    margin: 2.4rem 0 0 auto;
    width: 100%;
    height: 3.2rem;
    font-size: 1.2rem;
  }

  main.recommended a.recommend_link::after {
    width: 1.2rem;
    height: 0.1rem;
/*    transform: translateX(-100%);*/
  }
}

/* ----- useful お役立ち情報 ----- */

main.useful section.useful .core_area {
display: flex;
flex-direction: column;
gap:80px;
}

main.useful section.useful p.useful_note {
  margin-top: min(2rem, 20px);
  font-size: min(1.2rem, 12px);
  font-weight: 400;
}

main.useful section.useful .useful_wrap {
  margin-top: min(4rem, 40px);
}

main.useful section.useful a.useful_item {
  grid-row: span 4;
}

main.useful section.useful a.useful_item .useful_txt {
  margin: min(1rem, 10px) auto 0;
  width: 90%;
  font-size: min(1.6rem, 16px);
  font-weight: 400;
  line-height: 1.4;
}

@media (max-width: 799px) {
  main.useful section.useful p.useful_note {
    margin-top: 1rem;
    font-size: 1.2rem;
    line-height: 1.4;
  }
  
  main.useful section.useful a.useful_item .useful_txt {
    margin: 1rem auto 0;
    font-size: 1.3rem;
    line-height: 1.4;
  }
}

main.knowledge_under .inner_ttl_set h2.inner_h2_l {
  border-bottom: none;
}

main.detail01 section.detail01 div.container,
main.detail02 section.detail02 div.container,
main.detail03 section.detail03 div.container,
main.detail04 section.detail04 div.container {
	background-color: #fff;
	padding: min(4rem, 40px);
	box-shadow: 0 0 min(1rem, 10px) rgba(0, 0, 0, 0.1);
}

main.knowledge_under .inner_ttl_set h2.inner_h2_l div.tag_area {
  margin-top: min(2.0rem, 20px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: min(.4rem, 4px);
}

main.knowledge_under .inner_ttl_set h2.inner_h2_l div.tag_area span {
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: #fff;
  color: var(--color-brand_purple);
  border: min(.1rem, 1px) solid var(--color-brand_purple);
  font-size: min(1.2rem, 12px) !important;
  font-weight: 400;
}

@media (max-width: 799px) {
main.detail01 section.detail01 div.container,
main.detail02 section.detail02 div.container,
main.detail03 section.detail03 div.container,
main.detail04 section.detail04 div.container {
	padding: 2rem;
}
}

/* ----- knowledge_detail01 ----- */



main.detail01 section.detail01 div.bnr_area {
  max-width:min(80rem, 800px);
  margin:0 auto;
  width: 100%;
  aspect-ratio: 16 / 9;
	position: relative;
}

main.detail01 section.detail01 div.bnr_area iframe,
main.detail01 section.detail01 div.bnr_area video {
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0px;
	left: 0px;
}

main.detail01 section.detail01 .move_speaker_wrap {
border-top:1px solid #CECECE;
  margin-top: min(8rem, 80px);
}

main.detail01 section.detail01 p.speaker {
  margin-top: min(4rem, 40px);
  font-size: min(2.4rem, 24px);
  font-weight: 700;
}

main.detail01 section.detail01 p.speaker span {
	display: block;
	width: fit-content;
	padding: min(0.3rem, 3px) 0.7em;
	font-size: min(1.4rem, 14px);
	font-weight: 700;
	margin-bottom: min(2rem, 20px);
	border-left: 3px solid var(--color-brand_purple);
}

main.detail01 section.detail01 p.position {
	margin-top: min(2rem, 20px);
	display: flex;
	flex-direction: column;
	gap: min(1rem, 10px);
	font-weight: 400;
	line-height: 1.7;
}

main.detail01 section.detail01 p.position span {
  font-size: min(1.6rem, 16px);
  font-weight: 400;
}

main.detail01 section.detail01 dl.timestamp_dl {
  margin-top: min(4rem, 40px);
  border: min(.1rem, 1px) solid #CECECE;
}

main.detail01 section.detail01 dl.timestamp_dl div.timestamp_item {
  display: flex;
  align-items: stretch;
  gap: 0;
  border-bottom: min(.1rem, 1px) solid #CECECE;
}

main.detail01 section.detail01 dl.timestamp_dl div.timestamp_item:last-child {
  border-bottom: none;
}

main.detail01 section.detail01 dl.timestamp_dl div.timestamp_item dt {
  width: min(24rem, 240px);
  padding: min(1.6rem, 16px);
  font-size: min(1.6rem, 16px);
  font-weight: 700;
  background-color: #F5F5F5;
  border-right: min(.1rem, 1px) solid #CECECE;
  line-height: 1.6;
  color: var(--color-bland_purple);
}

main.detail01 section.detail01 dl.timestamp_dl div.timestamp_item dd {
  flex: 1;
  padding: min(1.6rem, 16px);
  font-size: min(1.6rem, 16px);
  font-weight: 400;
  line-height: 1.6;
}

@media (max-width: 799px) {
  main.detail01 section.detail01 div.bnr_area {
  }
  
  main.detail01 section.detail01 p.speaker {
    margin-top: 2rem;
    font-size: 2rem;
  }
  
  main.detail01 section.detail01 p.speaker span {
    padding: 0.4rem 1.0rem;
    font-size: 1.3rem;
    margin-bottom: 1.6rem;
  }
  
  main.detail01 section.detail01 p.position {
    margin-top: 1.6rem;
    gap: .8rem;
  }
  
  main.detail01 section.detail01 p.position span {
    font-size: 1.4rem;
    line-height: 1.2;
  }
  
  main.detail01 section.detail01 dl.timestamp_dl {
    margin-top: 2rem;
    border: .1rem solid #CECECE;
  }
  
  main.detail01 section.detail01 dl.timestamp_dl div.timestamp_item {
    flex-direction: column;
    align-items: center;
    border-bottom: .1rem solid #CECECE;
  }
  
  main.detail01 section.detail01 dl.timestamp_dl div.timestamp_item:last-child {
    border-bottom: none;
  }
  
  main.detail01 section.detail01 dl.timestamp_dl div.timestamp_item dt {
    width: 100%;
    padding: 1.2rem;
    font-size: 1.6rem;
    border-right: none;
    border-bottom: .1rem solid #CECECE;
    line-height: 1.4;
    box-sizing: border-box;
  }

  main.detail01 section.detail01 dl.timestamp_dl div.timestamp_item dt span {
    margin-left: 1em;
  }
  
  main.detail01 section.detail01 dl.timestamp_dl div.timestamp_item dd {
    width: 100%;
    padding: 1.2rem;
    font-size: 1.6rem;
    line-height: 1.4;
    box-sizing: border-box;
  }
		
		main.detail01 section.detail01 .move_speaker_wrap {
  margin-top: 4rem;
}
}

/* ----- knowledge_detail02 ----- */

main.detail02 h2.inner_h2_l small {
  display: block;
  margin-top: min(2.0rem, 20px);
  font-size: min(2.0rem, 20px);
  line-height: 1.2;
}


main.detail02 section.detail02 h2.inner_h2_s small {
  display: block;
  margin-top: min(1.0rem, 10px);
  font-size: min(2.0rem, 20px);
  line-height: 1.2;
}

main.detail02 section.detail02 div.top_image {
  margin-top: min(2.0rem, 20px);
  width: 100%;
}

main.detail02 section.detail02 div.bnr_area {
  margin: min(6rem, 60px) auto 0;
  width: 80%;
}

main.detail02 section.detail02 div.movie_area {
  margin: min(6rem, 60px) auto 0;
  width: 80%;
}

main.detail02 section.detail02 div.movie_area video {
  width: 100%;
}

main.detail02 section.detail02 .common_txt figure.wp-block-image {
  max-width: min(80rem, 800px);
  margin: 0 auto;
}

main.detail02 section.detail02 .related_link {
	margin-top: min(4rem, 40px);
	border-bottom: 1px solid #CECECE;
	margin-bottom: min(2rem, 20px);
}

main.detail02 section.detail02 .related_link span {
    display: block;
    width: fit-content;
    padding: min(0.3rem, 3px) 0.7em;
    font-size: min(1.4rem, 14px);
    font-weight: 700;
    margin-bottom: min(1rem, 10px);
    border-left: 3px solid var(--color-brand_purple);
}

@media (max-width: 799px) {
  main.detail02 section.detail02 h2.inner_h2_s small {
    margin: 0.4rem;
    font-size: 1.3rem;
    line-height: 1.2;
  }
  
  main.detail02 section.detail02 div.top_image {
    margin-top: 2rem;
  }
  
  main.detail02 section.detail02 div.bnr_area {
    margin: 4rem auto 0;
    width: 100%;
  }
  
  main.detail02 section.detail02 div.movie_area {
    margin: 4rem auto 0;
    width: 100%;
  }
}

/* ----- knowledge_detail03 ----- */

main.detail03 section.detail03 .common_txt {
margin-top:0 !important;
}

main.detail03 section.detail03 div.top_image {
  margin-top: min(4rem, 40px);
}

main.detail03 section.detail03 div.img_area {
  margin-top: min(4rem, 40px);
}

main.detail03 section.detail03 div.author_area {
  margin-top: min(8rem, 80px);
  background-color: #F5F5F5;
  padding: min(4rem, 40px) min(3.2rem, 32px);
}

main.detail03 section.detail03 div.author_area div.author_wrap {
  display: flex;
  align-items: start;
  gap: min(4rem, 40px);
}

main.detail03 section.detail03 div.author_area div.author_wrap div.author_img {
  width: min(12rem, 120px);
  height: min(12rem, 120px);
}

main.detail03 section.detail03 div.author_area div.author_wrap div.author_img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

main.detail03 section.detail03 div.author_area div.author_wrap p.author_name {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: min(1.6rem, 16px);
  font-size: min(1.6rem, 16px);
  font-weight: 400;
}

main.detail03 section.detail03 div.author_area div.author_wrap p.author_name strong {
  font-size: min(1.8rem, 18px);
}

main.detail03 section.detail03 div.author_area p.common_txt {
  display: flex;
  flex-direction: column;
  gap: min(1.6rem, 16px);
  font-size: min(1.6rem, 16px);
  font-weight: 400;
  margin-top: min(4rem, 40px) !important;
}

main.detail03 section.detail03 div.author_area p.common_txt span {
  line-height: 1.4;
}

main.detail03 section.detail03 div.author_area p.common_txt a {
  text-decoration: underline;
}

main.detail03 section.detail03 .author_ttl {
	margin-bottom: min(2rem, 20px);
}

main.detail03 section.detail03 .author_ttl span {
    display: block;
    width: fit-content;
    padding: min(0.3rem, 3px) 0.7em;
    font-size: min(1.4rem, 14px);
    font-weight: 700;
    margin-bottom: min(1rem, 10px);
    border-left: 3px solid var(--color-brand_purple);
}

@media (max-width: 799px) {
  main.detail03 section.detail03 div.top_image {
    margin-top: 4rem;
  }
  
  main.detail03 section.detail03 div.img_area {
    margin-top: 4rem;
  }
  
  main.detail03 section.detail03 div.author_area {
    margin-top: 4rem;
    padding: 2rem;
  }
  
  main.detail03 section.detail03 div.author_area div.author_wrap {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  
  main.detail03 section.detail03 div.author_area div.author_wrap div.author_img {
    margin: 0 auto;
    width: 15rem;
    height: 15rem;
  }
  
  main.detail03 section.detail03 div.author_area div.author_wrap p.author_name {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    font-size: 1.4rem;
  }
  
  main.detail03 section.detail03 div.author_area div.author_wrap p.author_name strong {
    font-size: 1.6rem;
  }
  
  main.detail03 section.detail03 div.author_area p.common_txt {
    gap: 0.8rem;
    font-size: 1.4rem;
  }
  
  main.detail03 section.detail03 div.author_area p.common_txt span {
    line-height: 1.4;
  }
}

/* ----- detail04 ----- */

main.detail04 section.detail04 div.top_image {
}

@media (max-width: 799px) {
  main.detail04 section.detail04 div.top_image {
  }  
}


/* ----- 関連記事 ----- */

main.knowledge_under section.related_posts div.knowledge_wrap {
  margin-top: min(4.0rem, 40px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: min(2.0rem, 20px);
}

main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item {
  display: grid;
  grid-template-rows: subgrid;
  grid-row: span 5;
  gap: 0;
  width: 100%;
  border-radius: min(.5rem, 5px);
  background-color: #fff;
  padding: min(1.2rem, 12px) min(1.2rem, 12px) min(2rem, 20px);
  box-shadow: 0 0 min(1rem, 10px) rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item div.img_area {
  width: 100%;
  height: min(21rem, 210px);
  overflow: hidden;
}

main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item div.img_area img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item span.knowledge_category {
  margin-top: min(1rem, 10px);
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: var(--color-brand_purple);
  color: #fff;
  font-size: min(1.2rem, 12px);
  font-weight: 700;
  letter-spacing: 0.04em;
}

main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item p.name {
  margin-top: min(1rem, 10px);
  font-size: min(1.2rem, 12px);
  line-height: 1.2;
  font-weight: 400;
}

main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item h3.article_ttl {
  margin-top: min(1rem, 10px);
  font-size: min(1.6rem, 16px);
  line-height: 1.2;
}

main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item div.tag_area {
  margin-top: min(2.0rem, 20px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: min(.4rem, 4px);
}

main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item div.tag_area span {
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: #fff;
  color: var(--color-brand_purple);
  border: min(.1rem, 1px) solid var(--color-brand_purple);
  font-size: min(1.2rem, 12px);
  font-weight: 400;
}

main.index section.article h3.article_h3 {
  margin-top: min(4.0rem, 40px);
  font-size: min(1.8rem, 18px);
  display: flex;
  align-items: center;
  gap: min(.8rem, 8px);
  cursor: pointer;
}

main.index section.article h3.article_h3::before {
  content: '';
  background-image: url(../images/icon_arrow_down_black.png);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: min(2.0rem, 20px);
  height: min(1.0rem, 10px);
  transition: all .8s;
}

main.index section.article h3.article_h3.active::before {
  transform: rotate(180deg);
}

main.index section.article div.tag_box {
  margin-top: 0;
  width: 100%;
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  pointer-events: none;
  transition: all .4s;
}

main.index section.article div.tag_box.active {
  margin-top: min(2.0rem, 20px);
  grid-template-rows: 1fr;
  opacity: 1;
  pointer-events: auto;
}

main.index section.article div.tag_box div.tag_wrap {
  min-height: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: min(.4rem, 4px);
}

main.index section.article div.tag_box span {
  font-size: min(1.2rem, 12px);
  width: fit-content;
  padding: min(0.6rem, 6px) min(1.0rem, 10px);
  background-color: #fff;
  color: var(--color-brand_purple);
  border: min(.1rem, 1px) solid var(--color-brand_purple);
  font-size: min(1.2rem, 12px);
  font-weight: 400;
}

@media (max-width: 799px) {
  main.index section.article h2.top_h2 {
    text-align: center;
  }
  
  main.knowledge_under section.related_posts div.knowledge_wrap {
    margin-top: 4.0rem;
    grid-template-columns: repeat(1, 1fr);
    gap: 2rem;
  }
  
  main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item {
    display: block;
    border-radius: .5rem;
    padding: 1rem 1rem 2rem;
    box-shadow: 0 0 1rem rgba(0, 0, 0, 0.1);
  }
  
  main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item div.img_area {
    height: 18rem;
  }
  
  main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item span.knowledge_category {
    margin-top: 1rem;
    padding: 0.4rem 0.8rem;
    font-size: 1.2rem;
  }
  
  main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item p.name {
    margin-top: 1rem;
    font-size: 1.2rem;
  }
  
  main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item h3.article_ttl {
    margin-top: 1rem;
    font-size: 1.6rem;
  }
  
  main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item div.tag_area {
    margin-top: 2rem;
    gap: .4rem;
  }
  
  main.knowledge_under section.related_posts div.knowledge_wrap a.knowledge_item div.tag_area span {
    padding: 0.4rem 0.8rem;
    border: .1rem solid var(--color-brand_purple);
    font-size: 1.2rem;
  }
  
  main.index section.article h3.article_h3 {
    margin-top: 4rem;
    font-size: 1.6rem;
    gap: .8rem;
  }
  
  main.index section.article h3.article_h3::before {
    width: 1.6rem;
    height: .8rem;
  }
  
  main.index section.article div.tag_box {
    margin-top: 0;
    width: 100%;
  }
  
  main.index section.article div.tag_box.active {
    margin-top: 2rem;
  }
  
  main.index section.article div.tag_box div.tag_wrap {
    gap: .4rem;
  }
  
  main.index section.article div.tag_box span {
    font-size: 1.2rem;
    padding: 0.4rem 0.8rem;
    border: .1rem solid var(--color-brand_purple);
  }
}