@charset "utf-8";
/* ---------------------------------------------
navigation02 ※TOP、下層共通
--------------------------------------------- */
.header-area-upper {
	padding: var(--s1);
	text-align: right;
}
.header-title {
	font-size: 1.2rem;
	display: inline-block;
	position: relative;
}
.header-title::before {
	content: "PR";
	padding: .2rem;
	color: #fff;
	background-color: #333;
	transform: translateY(-50%);
	position: absolute;
	top: 50%;
	left: -2.4rem;
}
.header-title a {
	text-decoration: none;
}
.header-title a:hover {
	text-decoration: underline;
}
.gnavi-btn-close {
	display: none;
}
.toggle-content {
	display: none;
}
.gnavi-ctrl {
	transition: opacity 0.6s, visibility 0.6s;
	opacity: 0;
	visibility: hidden;
}
.gnavi-ctrl.is-show {
	opacity: 1;
	visibility: visible;
}
#low-header .gnavi-ctrl {
	opacity: 1;
	visibility: visible;
}
.gnavi-btn {
	width: var(--s7);
	height: var(--s6);
	background: #333;
	display: block;
	position: fixed;
	top: var(--s3);
	right: 0;
	z-index: 200;
	cursor: pointer;
}
.gnavi-btn span {
	width: var(--s4);
	height: 0.2rem;
	display: inline-block;
	background: #fff;
	position: absolute;
	left: 1.2rem;
	transform: translate(0, -50%);
	transition: transform 0.4s, opacity 0.4s;
}
.gnavi-btn span:nth-of-type(1) {
	top: 1.7rem;
}
.gnavi-btn span:nth-of-type(2) {
	top: 2.4rem;
}
.gnavi-btn span:nth-of-type(3) {
	top: 3.1rem;
}
.gnavi-btn.is-active span:nth-of-type(1) {
	transform: translateY(0.7rem) rotate(-45deg);
}
.gnavi-btn.is-active span:nth-of-type(2) {
	opacity: 0;
}
.gnavi-btn.is-active span:nth-of-type(3) {
	transform: translateY(-0.7rem) rotate(45deg);
}
.gnavi-btn-close {
	width: 80%;
	margin: 0 auto;
	padding: var(--s2);
	background: #333;
	display: block;
	text-align: center;
}
.gnavi-btn-close__inner {
	padding: 0 0 0 var(--s3);
	display: inline-block;
	color: #fff;
	font-weight: 700;
	position: relative;
}
.gnavi-btn-close__inner::before {
	content: "";
	width: 1em;
	height: 0.2rem;
	background: #fff;
	position: absolute;
	top: 50%;
	left: 0;
	transform: translate(0, -50%) rotate(45deg);
}
.gnavi-btn-close__inner::after {
	content: "";
	width: 1em;
	height: 0.2rem;
	background: #fff;
	position: absolute;
	top: 50%;
	left: 0;
	transform: translate(0, -50%) rotate(135deg);
}
.gnavi-area {
	width: 100%;
	max-width: 37.5rem;
	height: 100vh;
	padding: var(--s3) var(--s1) var(--s10);
	display: block;
	background: #F5F5F5;
	overflow-x: hidden;
	overflow-y: auto;
	position: fixed;
	top: 0;
	right: 0;
	z-index: 100;
	transform: translateX(100%);
	transition: transform 0.8s ease, opacity 0.8s ease;
	opacity: 0;
}
.gnavi-title {
	min-height: var(--s6);
	margin: 0 var(--s8);
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.6rem;
	font-weight: 700;
	text-align: center;
	line-height: 1.5;
}
.gnavi-pc {
	display: none;
}
.gnavi-list {
	border-bottom: 1px solid #333;
	position: relative;
}
.gnavi-list li {
	padding-left: 0;
}
.gnavi-list__item::before {
	display: none;
}
.gnavi-list__link {
	width: 100%;
	margin: 0 auto;
	padding: var(--s2) var(--s4) var(--s2) var(--s2);
	border-top: 1px solid #333;
	display: block;
	font-weight: 700;
	line-height: 2;
	text-decoration: none;
	position: relative;
}
.gnavi-list__link::after {
	content: "";
	width: 1.4rem;
	height: 1.4rem;
	background: url("img/arrow-01-black-right.svg") no-repeat center/100% auto;
	position: absolute;
	top: 50%;
	right: var(--s2);
	transform: translate(0, -50%) rotate(0);
	transition: transform 0.3s;
}
.gnavi-list__link--toggle::after {
	background-image: url("img/arrow-01-black-down.svg");
}
.gnavi-list__link--toggle.is-open::after {
	transform: translate(0, -50%) rotate(180deg);
}
.gnavi-list__sub {
	width: 100%;
	background: #fff;
}
.gnavi-list__low .gnavi-list__link {
	padding: var(--s2) var(--s4) var(--s2) var(--s4);
}
.gnavi-list__low .gnavi-list__link::after {
	content: "└";
	background: none;
	transform: translateY(-50%);
	position: absolute;
	top: 40%;
	left: 1rem;
}
.is-gnavi-open .gnavi-area {
	opacity: 1;
	transform: translateX(0);
}

/* ---------------------------------------------
index01(目次)
--------------------------------------------- */
.onb-index01-frame {
    width: 100%;
    background-color: var(--site-color09);
}
.onb-index01-wrap {
    margin: 0 auto;
    padding: var(--s1) var(--s3);
    border: solid 0.1rem #D0D3E0;
    background-color: transparent;
    position: relative;
}
.onb-index01-title {
    padding: var(--s2) var(--s2) var(--s2) var(--s6);
    color: #333;
    font-size: 2.2rem;
    font-weight: bold;
    line-height: 1;
    background: url("./img/dummy-icon.png") no-repeat left center;
    background-size: 4rem auto;
    position: relative;
    cursor: pointer;
}
.onb-index01-title::before {
    content: "";
    width: 2rem;
    height: 0.3rem;
    background: #333;
    position: absolute;
    top: 50%;
    right: 2rem;
    transform: translate(0, -50%);
}
.onb-index01-title::after {
    content: "";
    width: 0.3rem;
    height: 2rem;
    background: #333;
    position: absolute;
    top: 50%;
    right: 2.9rem;
    transform: translate(0, -50%);
    transition: transform 0.3s;
}
.onb-index01-title.is-open::after {
    transform: translate(0, -50%) rotate(270deg);
}
.onb-index01-chapter {
    padding: var(--s2) var(--s2) var(--s2) var(--s4);
    font-weight: 700;
}
.onb-index01-chapter-h {
    margin: 0 0 0 var(--s2);
    font-size: 100%;
    line-height: 1.7;
    position: relative;
}
.onb-index01-chapter-h a {
    display: block;
    text-decoration: none;
}
.onb-index01-chapter-h a:hover {
    opacity: .6;
}
.onb-index01-chapter-h-two {
    margin-left: var(--s2);
    position: relative;
}
.onb-index01-chapter-h-three {
    margin-left: var(--s4);
    position: relative;
}
.onb-index01-chapter-h-two::before,
.onb-index01-chapter-h-three::before {
    position: absolute;
    top: 0;
    left: -1.5em;
}
.onb-index01-chapter-h-two::before {
    content: "";
    width: 1.2rem;
    height: 1.2rem;
    border-radius: 2rem;
    background-color: var(--site-color02);
    transform: translateY(-50%);
    top: .8em;
}
.onb-index01-chapter-h-three::before {
    content: "└";
}
.more-content {
    display: none;
}
.onb-index01-content {
    background-color: #fff;
}

/* ---------------------------------------------
related-article01(関連記事)
--------------------------------------------- */
.related-article01-frame {
    border: 1px solid var(--site-color09);
    margin: var(--s6) auto;
    padding: var(--s1)  var(--s3)  var(--s4) var(--s3);
    background: #f7f7f7;
    position: relative;
}
.related-article01-title {
    padding: var(--s2) var(--s2) var(--s3) var(--s8);
    color: #333;
    font-size: 2.2rem;
    font-weight: bold;
    line-height: 1;
    background: url("./img/dummy-icon.png") no-repeat left center;
    background-size: 5rem auto;
    position: relative;
    border-bottom: 1px solid #D0D3E0;
}
.related-article01-list {
    padding: var(--s2) 0 var(--s2) var(--s2);
    font-weight: 700;
}
.related-article01-list li {
    margin: 0 0 0 var(--s2);
    padding-left: 1.5em;
    font-size: 100%;
    line-height: 1.7;
    position: relative;
}
.related-article01-list li + li {
    margin-top: 10px;
}
.related-article01-list li::before {
    content: "";
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 50%;
    background-color: #9B9B9B;
    position: absolute;
    top: .6rem;
    left: 0;
}
.related-article01-list a {
    display: block;
    text-decoration: none;
}
.related-article01-list a:hover {
    opacity: 0.6;
}
.relations-box.relations-box--column {
    display: flex;
    gap: 10px;
}
.relations-box__pic {
    flex: 0 0 150px;
}
.is-hidden {
	display: none;
}

.related-article01-more {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 0, #fff 50%);
    background-color: transparent;
    width: 100%;
    height: 25%;
    position: absolute;
    bottom: -40px;
    left: 0;
    padding: 2rem 0;
}


.related-article01-more.is-closed {
    display: none;
}

.related-article01-btn {
    border: 1px solid #ccc;
    background: #fff;
    border-radius: 100px;
    padding: 1rem 5rem 1rem 2rem;
    position: relative;
}

  .related-article01-btn::before {
    content: "";
    width: 1.8rem;
    height: .2rem;
    background: #000;
    position: absolute;
    top: 50%;
    right: 1.5rem;
    transform: translate(0, -50%);
}
.related-article01-btn::after {
    content: "";
    width: .2rem;
    height: 1.8rem;
    background: #000;
    position: absolute;
    top: 50%;
    right: 2.3rem;
    transform: translate(0, -50%);
    transition: transform 0.3s;
}
.related-article01-btn:hover {
    opacity: 0.6;
}

/*------------------------------------------------------------
    SP settings
*/
@media screen and (max-width: 767px) {
    .related-article01-list {
        padding: 0;
    }
    .related-article01-list li {
        margin-left: 0;
    }
    .relations-box__pic {
        flex: 0 0 100px;
    }
}