#filtering li {
  text-align: center;
  color: #fff;
  width: 161px;
  line-height: 41px;
  list-style: none;
  background: #6d6d6d;
  margin: 0 10px;
}

#filtering li a {
  color: #fff;
  width: 161px;
  line-height: 41px;
  display: block;
  text-decoration: none;
}

#filtering {
  margin-top: 40px;
}

#filtering ul {
  	display:-webkit-box;/*--- Android旧ブラウザ用 ---*/
    display:-ms-flexbox;/*--- IE10 ---*/
    display:-webkit-flex;
    display: flex;
  	-webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
}

.accordion-menu {
  display: inline-block;
  background-color: #E16F00;
  width: 25px;
  height: 25px;
  color: white;
  text-align: center;
  font-weight: 30px;
  line-height: 25px;
  cursor:pointer;
  margin-left: 5px;
  margin-bottom: 5px;
}

#contents {
	padding: 20px 30px 50px 30px;
}

.contents-box {
	padding-bottom: 20px; 
	margin-top: 10px;
}

.about-link {
	margin-bottom: 15px;
	text-align: right;
}

.checkboxright {
	margin: 10px;
	text-align: right;
}

img.icon {
	height: 35px;
    margin-right: 10px;
}

.material-number {
	width: 40px;
	height: 40px;
	background: #CC0066;
	color: white;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: bold;
	transform: translate(220px, -50px);
}

.material1-number {
	width: 40px;
	height: 40px;
	background: #008000;
	color: white;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: bold;
	transform: translate(220px, -70px);
}

.contents-box .sub-title {
	font-size: 18px;
    font-weight: bold;
    color: #156082;
}

.contents-box .think-text {
	font-size: 16px;
    font-weight: bold;
    display: inline-block;
    margin: 10px;
}

.contents-box .sub-title .use-link {
	color: #156082;
}

.button-text {
	margin-bottom: 5px;
	display: inline;
	margin-left: 18px;
}

.contents-info-text{
	border: 1px solid #00000052;
	padding: 15px 15px 10px 15px;
	line-height: 2;
}

.box-text {
	padding: 15px 15px 10px 15px;
	margin-top: 10px;
	margin-bottom: 10px;
	border-radius: 30px;
	background-color: #FDF1BF;
}

.feature-box > .box-text {
	margin-left: 40px;	
}

.display-none {
	display: none;
}

.display-text {
	padding-left: 10px;
	padding-right: 10px;
	letter-spacing: 1px;
	line-height: 2;
}

.display-text.list {
	padding-left: 40px;
	padding-right: 10px;
	list-style: none;
}

.display-text li::before {
	content: "- ";
	margin-right: 5px;
}

.display-text li {
	text-indent: -1em;
	letter-spacing: 1px;
	line-height: 2;
}

.reasonSubLink::before {
    content: "\25b8";
}

.contentsInfoLink::before {
    content: "\25b8";
}

.text-link::before {
    content: "\25b8";
}

.link-title {
    font-size: 18px;
    margin-top: 43px;
    color: #156082;
    margin-bottom: 10px;
}

.link-position {
	margin-bottom: 22px;
}

.reason-container {
	padding: 10px 30px 5px 0px;
	display: flex;
}

.reason-position {
	padding-top: 8px;	
}

.reason-container .reason-item {
	flex-basis: 30%;
	list-style: none;
}

.reason-container .reason-item .reasonSubLink {
	font-weight: bold;
}

.feature-box {
	padding: 5px 0;
}

.contents-box .feature-box.space-top {
	padding-top: 15px;	
}

.contents-box .feature-box > p {
	font-size: 16px;
    font-weight: bold;
}

.contents-box.type {
	padding-bottom: 10px;
	margin-top: 20px;
}

.type-item {
	margin: 15px;
}

.material-type-title {
	margin-top: 35px;
}

.type-title {
	font-size: 16px;
	padding: 10px 10px 5px 10px;
	margin-right: 10px;
    color: white;
}

.type-title.title-activity {
	background-color: #CC0066;
	display: inline;
	padding-right: 14px;
    padding-left: 13px;
    padding-top: 13px;
}

.type-title.title-materials {
	background-color: #008000;
	display: inline;
	padding-top: 13px;
}

.type-title.activity {
	border-radius: 30px;
	background-color: #CC0066;
	margin-top: 10px;
	padding: 15px 20px 10px 20px;
}

.type-title.material {
	border-radius: 30px;
	background-color: #008000;
	margin-top: 10px;
	padding: 15px 20px 10px 20px;
}

.type-title.title-activity.not-ruby {
	padding: 5px 10px 5px 10px;
	background-color: #CC0066;
	display: inline;
}

.type-title.title-materials.not-ruby {
	padding: 5px 10px 5px 10px;
	background-color: #008000;
	display: inline;
}

.type-title.other {
	border-radius: 30px;
	background-color: #156082;
	margin-top: 10px;
	padding: 10px 60px 5px 60px;
    display: inline-block;
    margin-bottom: 15px;
}

.view-container {
	display: flex;
	gap: 10px;
}

.view-container div {
	padding: 5px 0;
}

.view-container .view-items .movie-item {
	text-align: center;
	margin-bottom: 5px;
	padding-right: 10px;
}

.view-container .view-items {
	border-left-style: solid;
	border-left-width: 8px;
	margin-top: 5px;
}

.view-container .view-items.activity-item {
	border-left-color: #FB97AA;
}

.view-container .view-items.material-item {
	border-left-color: #00B050;
}

.view-container .view-items img {
	width: 50px;
	height: auto;
	transform: translate(215px, -65px);
}

.view-container .view-items .item-title {
	height: 100px;
	margin-right: 15px;
	padding: 8px;
	margin-top: 10px;
    margin-bottom: 10px;
}

.view-container .view-items .item-title p {
    font-weight: bold;
}

.material-link {
    text-decoration: none;
    color: black;
}

.material-link:hover {
    color: #00000070;
}

.view-container .view-items .item-title.activity-item {
	background-color: #ffd7de;
}

.view-container .view-items .item-title.material-item {
	background-color: #9befc1;
}

.2lines {
	padding-top: 15px;
}

.view-container .view-items .item-tag {
	margin: 8px;
}

.view-container .view-items .item-tag .tag {
	margin-bottom: 5px;
}

.view-container .view-items .item-tag .tag.tag-color {
	color: #157CD6;
	font-weight: bold;
}

.composition-member {
	margin-left: 30px;
	margin-top: 15px;
}

.composition-member .member-title {
	font-size: 16px;
	font-weight: bold;
}

.composition-member .member {
	margin-left: 18px;
}

.composition-member p {
	margin: 5px;
}

.other-title {
	font-weight: bold;
	margin-bottom: 10px;
}

.other-text-box {
	margin-left: 18px;
	margin-bottom: 15px;
}

.other-text-box .sub-text {
	margin-left: 18px;
}

.other-text {
	margin-top: 15px;
}

/*学習活動・教材の使い方*/
.manual-contents-box {
	
}

.manual-text {
	margin-top: 20px;
}

.practice_manual-table {
	display: flex;
	margin: 20px 30px 20px 30px;
}

.practice_manual-title {
	width: 150px;
	color: white;
    background-color: #157CD6;
    display: flex;
	justify-content: center;
	align-items: center;
}

.practice_manual-title p {
	padding-left: 10px;
	text-align: center;
}

.practice_manual-text {
	padding: 5px 0px 5px 10px;
	border: solid 2px #157CD6;
	flex: 1;
}

.practice_manual-text ul {
	list-style: none;
}

.practical-contents {
	margin:10px;	
}

.practical-contents > div {
	margin-bottom: 20px;	
}

.practical-title {
	color: #157CD6;
    font-weight: bold;
    margin-left: 8px;
}

.practical-ul {
	margin-left: 20px;
}

.usage-method-title {
	display: flex;
	align-items: center;
	margin-bottom: 10px;
}

img.manual-icon {
	height: 25px;
    margin-right: 10px;
}

img.topic-icon {
	height: 30px;
    margin-right: 10px;
    margin-left: 10px;
}

img.download-icon {
	height: 20px;
    margin-right: 10px;
    margin-left: 10px;
    margin-bottom: 10px;
}

.manual-method-title {
	background-color: #A9E2F2;
	padding: 12px;
}

.plas-icon {
	width: 30px;
	height: 30px;
	background: #157CD6;
	color: white;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: bold;
	font-size: 20px;
	margin: 0 10px;
}

.provision-contents {
	display: flex;
	justify-content: center;
	align-items: center;
}

.provision-box {
	display: flex;
	background-color: #DBF3F9;
    padding: 10px;
	height: 80px;
}

.provision-plan-text {
	margin-left: 100px;
	border-left: solid 5px #DBF3F9;
}

.plan-text {
	padding-top: 10px;
}

.provision-other-contents {
	margin-left: 55px;
    margin-right: 45px;
}

.provision-text-box {
	display: flex;
	justify-content: space-around;
}

.provision-other-text {
	border: solid 5px #DBF3F9;
	border-top: none;
	width: 350px;
	height: 20px;
}

.point-color-blue {
	color: #157CD6;
}

.point-text {
	margin-bottom: 20px;
	margin-top: 20px;
}

.point-text p {
	font-size: 90%;
}

.download-box {
	display: flex;
    flex-direction: column;
    align-items: center;
}

.ect-text {
	padding-top: 40px;
}

.icon-a {
filter: brightness(0) saturate(100%) invert(31%) sepia(91%) saturate(748%) hue-rotate(187deg);
}

.square-play {
	width: 20px;
	height: 20px;
	aspect-ratio: 1 / 1;
	border: 2px solid #157CD6;
	border-radius: 5px;
	display: flex;
	justify-content: center;
	align-items: center;
	font-size: 12px;
	color: #157CD6;
}

.manual-box {
	margin: 0px 10px; /* 外側余白 */
	padding: 15px 0px 10px 0px; /* 内側余白 */
	background-color: white; /* 背景色 */
	position: relative; /* 相対位置指定 */
	border: solid 2px #157CD6;
	width: 140px;
}

.manual-box::after {
	position: absolute; /* 絶対位置指定 */
	content: ''; /* 擬似要素 */
	right: 0; /* 右端 */
	bottom: 0; /* 下端 */
	border-width: 15px 15px 0 0; /* 折れ形状 */
	border-style: solid; /* 線の種類 */
	border-color: #157CD6 #DBF3F9 #DBF3F9; /* 色 */
	right: -2px;
	bottom: -2px;
}

.manual-box >p {
	text-align: center;
}

.ruby-icon {
	transform: translate(0px, -2px);
}

.view-container .view-items video {
	width: 70%;
	height: auto;
}

video::-webkit-media-controls-panel {
	background: rgba(0, 0, 0, 0.05);
}

.rubyTop rt {
	position: relative;
    top: -1px;
    font-size: 9.5px;
}