header .headTopArea .rightTxt:before {
    content: "PR";
    display: inline-block;
    background: #000;
    color: #fff;
    text-align: center;
    width: fit-content;
    margin-right: 1rem;
    font-size: 1.5rem;
    padding: 0 1rem;
}

footer p.copy a:before, .l-footer-bottom__copy a:before  {
    content: "【PR】";
}
.youtube {
	text-align: center;
}
.lower-bottom.lstlb {
    margin-top: 0;
}
/* oki_20220906 */

.kanren {
    border: 1px solid #d76b0d;
    padding: 20px 30px;
    margin: 30px auto;
    position: relative;
    box-sizing: border-box;
}
.midasi {
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 15px;
}
.kanren br {
    display: none;
}

/* アコーディオンのときに下記追加 */
.readmore-content {
    position: relative;
    overflow: hidden;
    height: 160px;
}
.readmore-content::before {
    display: block;
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    content: "";
    /*以下お好み グラデーションの色と高さ 高さはreadmoreのheight以下にすること*/
    height: 50px;
    z-index: 1;
    background: -webkit-linear-gradient(top, rgba(255,255,255,0) 0%, rgba(255,255,255,0.8) 50%, rgba(255,255,255,0.8) 50%, #fff 100%);
    background: linear-gradient(top, rgba(255,255,255,0) 0%, rgba(255,255,255,0.8) 50%, rgba(255,255,255,0.8) 50%, #fff 100%);
}


/* 続きを読むボタン */
.readmore-label{
    display: table;
    bottom: 5px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    margin: 5px auto;
    z-index: 2;
    padding: 7px 15px;
    background-color: #d76b0d;
    border-radius: 10px;
    color: #FFF;
}
.readmore-label:before{
    content: "\7D9A\304D\3092\8AAD\3080";
}

.readmore-check{
    display: none;
}
/*チェック時にボタンを非表示*/
.readmore-check:checked ~ .readmore-label{
    position: static;
    transform: translateX(0);
    -webkit-transform: translateX(0);
    /* 「続きを読む」を押した後、元に戻す必要がない場合は、上のオプションを消してこの1行だけにする */
    /* display: none; */
}
.readmore-check:checked ~ .readmore-label:before{
    content: "\9589\3058\308B";
}
/*チェック時に高さを自動に戻す*/
.readmore-check:checked ~ .readmore-content{
    height: auto;
}
/*チェック時グラデーション等を削除*/
.readmore-check:checked ~ .readmore-content::before {
    display: none;
}


/*--------------------------------------
  toc_parts
---------------------------------------*/
.toc_parts {
  width: 800px;
  max-width: 100%;
  background: #f5f5f5;
  margin: 5rem auto 10rem;
  padding: 4rem 5rem;
  box-sizing: border-box;
}

.toc_parts .ttl {
  padding: 0 0 0 1rem;
  font-size: 2rem;
  font-weight: bold;
  line-height: 1.6;
  border-left: 4px solid #f08300;
}

#toc {
  margin: 1.5rem 0 0 0;
  padding: 0 1.5rem 0;
  border-top: 1px solid #58585e;
}
#toc .chapter {
  margin: 0 0 2rem;
  counter-reset: count;
}
#toc .chapter .chapter-h {
  margin: 2rem 0 0;
  padding: 0 0 0 3.5rem;
  font-size: 1.6rem;
  line-height: 1.8;
  position: relative;
  counter-increment: count;
  background: none;
}
#toc .chapter .chapter-h:last-child {
  margin-bottom: 0;
}
#toc ul.chapter .chapter-h::before {
  content: counter(count, decimal-leading-zero);
  position: absolute;
  top: 14px;
  left: 0;
  transform: translate(0, -50%);
  color: #f08300;
  font-size: 2rem;
  font-weight: bold;
  background: none;
  width: auto;
  height: auto;
  border-radius: 0;
}
#toc .chapter .chapter-h a {
  font-weight: bold;
  text-decoration: none;
}
#toc .chapter .chapter-h a:hover {
  opacity: 0.6;
}
#toc .chapter .chapter-h span {
  color: #0b072b;
  font-weight: bold;
}

#toc li.chapter-h.chapter-h-three {
  margin: 1rem 0 1rem 4rem;
  padding: 0 0 0 1.5rem;
  counter-increment: none;
}
#toc li.chapter-h.chapter-h-three::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 0;
  width: 8px;
  height: 8px;
  border-top: solid 1px #0b072b;
  border-right: solid 1px #0b072b;
  -webkit-transform: rotate(180deg);
  transform: rotate(180deg);
}
#toc li.chapter-h.chapter-h-three a {
  font-weight: 400;
}
#toc li.chapter-h.chapter-h-three span {
  font-weight: 400;
}
#toc .chapter br {
  display: none;
}
.btn-accordion {
  width: 417.31px;
  max-width: 100%;
  text-align: center;
  margin: 0 auto;
}

.btn-accordion.orange {
  width: 362px;
  margin: 3rem auto;
}

.btn-accordion span {
  width: 100%;
  background: #f4f4f3;
  color: #111;
  border: 1px solid #111;
  border-radius: 100px;
  padding: 16px 51px;
  display: inline-block;
  margin: 20px auto 50px;
  line-height: 1.4;
  font-size: 2.4rem;
  font-weight: bold;
  letter-spacing: 0.1em;
  position: relative;
  cursor: pointer;
  transition: 0.2s;
}

.btn-accordion.orange span {
  max-width: 500px;
  margin: 0;
  padding: 2rem 5rem 2rem 3rem;
  display: inline-block;
  border: 4px solid #f08300;
  background: #fff;
  box-shadow: 5px 5px 0 #ccc;
  border-radius: 100px;
  font-size: 1.8rem;
  font-weight: bold;
  line-height: 1.4;
  color: #f08300;
  text-decoration: none;
  text-align: center;
  position: relative;
  transition: 0.2s;
}

.btn-accordion.orange span:hover {
  opacity: 1;
  background: #f08300;
  color: #fff;
}

.btn-accordion.orange span:hover:after {
  background: url(img/arrow01_white_down.png) no-repeat center center;
  background-size: 100%;
}

.btn-accordion span:hover {
  opacity: 0.6;
}

.btn-accordion span:before {
  content: '目次';
}

.btn-accordion.orange span:before {
  content: '';
}

.btn-accordion span:after {
  content: '';
  position: absolute;
  width: 25px;
  height: 25px;
  background: url(https://www.sumiyoie.com/wp/wp-content/uploads/mkjplus.png) no-repeat center center;
  background-size: 25px auto;
  top: 50%;
  transform: translateY(-50%);
  right: 25px;
  transition: 0.2s;
}

.btn-accordion.orange span:after {
  content: '';
  width: 20px;
  height: 12px;
  background: url(img/arrow01_blue_down.svg) no-repeat center center;
  background-size: 100%;
  position: absolute;
  top: 50%;
  right: 20px;
  transform: translateY(-50%);
}

.btn-accordion.is-open span:before {
  content: '閉じる';
}

.btn-accordion.is-open.orange span:before {
  content: '';
}

.btn-accordion.is-open span:after {
  background: url(img/ico_minus.svg) no-repeat center center;
  background-size: 25px auto;
}

.btn-accordion.orange.is-open span:after {
  background: url(img/arrow01_white_down.png) no-repeat center center;
  background-size: 100%;
  transform: translateY(-50%) rotate(180deg);
}

.accordion-item {
  display: none;
}

#page ul li > span {
	letter-spacing: 1px;
	margin: 0 0.3rem;
	font-weight: 700;
	background: linear-gradient(rgba(255, 255, 255, 0) 65%, #c3e6ee 65%);
	color: #3e3e3e;
}

/*----------------------------------------------------
    SPサイトcss
----------------------------------------------------*/

@media screen and (max-width: 599px) {
/*/////////////SP用のCSSをここに作成してください。/////////////*/
/*/////////////必ず中括弧の中に作成してください。/////////////*/
header .headTopArea .rightTxt {
    width: 80%;
    margin: 0 auto;
}
.lower-bottom.lstlb {
    margin-top: 1.5rem;
}

.btn-accordion span {
  width: 90%;
  padding: 12px 50px;
  font-size: 2rem;
}

.toc_parts {
  padding: 4rem 3.5rem;
}
#toc .chapter .chapter-h {
  font-size: 1.5rem;
}

}