/*--------------------------------------------------------------------------------
　▼ レッスンページコンテンツ箇所
--------------------------------------------------------------------------------*/
.contents-wrapper {
    background-color: #def7fc;
}

.inner-box {
    padding: 0 5%;
}


/*--------------------------------------------------------------------------------
　▼ レッスンページ共通箇所
--------------------------------------------------------------------------------*/
.lesson-title-wrap {
    margin: 40px 0 50px;
    text-align: center;
}

.lesson-title-wrap .faq-num {
    padding: 0 0 20px;
    text-align: center;
}

.lesson-title-wrap .sec-title {
    font-size: 4rem;
    font-family: 'M PLUS 1p';
    font-weight: 300;
}

.lesson-title-wrap p {
    font-size: 1.7rem;
    line-height: 3rem;
}

.answer-box {
    background-color: #fff;
    border-radius: 30px;
    padding: 30px;
}

.lesson-point {
    font-size: 0;
    margin: 40px auto 0;
    width: 60%;
}

.lesson-point .list li {
    display: inline-block;
    vertical-align: middle;
}

.lesson-point .list .for-sp-balloon {
    display: none;
}

.lesson-point .list li:nth-child(2) {
    text-align: right;
    width: 40%;
}

.lesson-point .list li:first-child img {
    position: relative;
    right: -20%;
}

.lesson-point .list li:last-child {
    width: 60%;
}

.lesson-point .list li:last-child img {
    position: relative;
    max-width: initial;
}

.sp-point {
    display: none;
}


/*--------------------------------------------------------------------------------
　▼ lesson-main
--------------------------------------------------------------------------------*/
.lesson-main {
    padding: 5%;
    position: relative;
}

.lesson-main .img-box {
    background-position: top center;
    background-repeat: no-repeat;
    background-size: 100% auto;
    padding-top: 45%;
}

.lesson-main p {
    font-size: 1.7rem;
    font-weight: 500;
    line-height: 2.7rem;
    padding: 40px 0 0;
    text-align: center;
}

.lesson-animation .pc-block {
    display: block;
}

.lesson-animation {
    position: absolute;
    width: 100%;
    z-index: 99;
}

.lesson-animation .iframe-wrapper {
    padding: calc(644 / 1301 * 100%) 0 0;
}

@media screen and (max-width:767px) {
    .lesson-animation .pc-block {
        display: none;
    }
}

/*--------------------------------------------------------------------------------
　▼ main-title-box これだけは知っておこう！ダムの基礎知識
--------------------------------------------------------------------------------*/
.main-title-box {
    text-align: center;
}

.main-title-box p {
    background-color: #fff;
    border-radius: 15px 15px 0 0;
    font-size: 1.6rem;
    padding: 5px 10px;
}

.main-title-box .sec-title {
    background-color: #5ebae7;
    border-radius: 0 0 15px 15px;
    color: #fff;
    font-size: 4rem;
    font-family: 'M PLUS 1p';
    font-weight: 300;
}

/*--------------------------------------------------------------------------------
　▼ Question.1
--------------------------------------------------------------------------------*/
.lesson-box01 .answer-box {
    padding: 30px 50px;
}

.answer-title {
    display: block;
    margin: 0 auto 20px;
    text-align: center;
}

.answer-title .title-inner {
    display: inline-block;
}

.answer-title .span-img {
    display: inline-block;
    vertical-align: middle;
}

.answer-title .answer-title01 {
    color: #5ebae7;
    display: inline-block;
    font-size: 3rem;
    font-family: 'mplus-regular';
    font-weight: 400;
    vertical-align: middle;
}

.answer-in p {
    font-size: 1.6rem;
    font-family: 'M PLUS 1p';
    font-weight: 300;
    line-height: 2.9rem;
    margin-bottom: 25px;
}

.answer-box .list01,
.answer-box .list02,
.answer-box .list03 {
    padding: 5px 0 0;
}

.answer-box .list01 li,
.answer-box .list02 li,
.answer-box .list03 li {
    color: #5ebae7;
    display: inline-block;
    font-size: 2.2rem;
    list-style: none;
    text-align: center;
    vertical-align: top;
    width: 30%;
}

.answer-box .list01 li:nth-child(3n - 1),
.answer-box .list02 li:nth-child(3n - 1) {
    margin: 0 5%;
}

.answer-box .list li img {
    border-radius: 10px;
    width: 100%;
}

.answer-box .list03 {
    font-size: 0;
    margin: 0;
    padding: 0;
}

.answer-box .list03 li {
    margin-right: 5%;
    width: 21%;
}

.answer-box .list01 li p,
.answer-box .list02 li p {
    font-size: 2.2rem;
}

.answer-box .list li p {
    font-family: 'mplus-regular';
    font-weight: 400;
    margin: 15px 0 0;
}

.list03 .sub-txt p {
    font-size: 2rem;
}

.list03 .sub-txt {
    color: #231815;
    font-size: 1.2rem;
    line-height: 1.9rem;
    margin: 10px 0 0;
    text-align: left;
}

.answer-box .list03 li:last-child {
    margin-right: 0;
}

.line-box {
    padding: 60px 0;
}

.answer-in04 .left-box {
    float: left;
    padding-right: 2%;
    width: 65%;
}

.answer-in04 .left-box img {
    border-radius: 10px;
}

.answer-in04 .right-box {
    float: right;
    padding-left: 1%;
    width: 35%;
}

.answer-in04:after {
    clear: both;
    content: "";
    display: block;
    margin-bottom: 40px;
}

.sp-list {
    display: none;
}

.answer-list01,
.answer-list02 {
    margin: 0 auto;
    width: 95%;
}

.answer-list01 li,
.answer-list02 li {
    color: #fff;
    display: inline-block;
    font-size: 1.1vw;
    line-height: 2.5rem;
    margin-top: 20px;
    padding: 12px 10px;
    position: relative;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
}

.answer-list02 li {
    height: 74px;
}

.answer-list01 li:first-child {
    background-color: #f8b62d;
    width: 35%;
}

.answer-list01 li:last-child {
    background-color: #e98b9c;
    width: 65%;
}

.answer-list02 li:first-child {
    background-color: #5ebae7;
    width: 67%;
}

.answer-list02 li:last-child {
    background-color: #84e852;
    width: 33%;
}

.answer-list01 li:first-child:before {
    content: '';
    width: 0;
    height: 0;
    border-top: 25px solid transparent;
    border-bottom: 25px solid transparent;
    border-right: 25px solid #f8b62d;
    position: absolute;
    left: -25px;
    top: 0;
}

.answer-list01 li:last-child:after {
    content: '';
    width: 0;
    height: 0;
    border-top: 25px solid transparent;
    border-bottom: 25px solid transparent;
    border-left: 25px solid #e98b9c;
    position: absolute;
    right: -25px;
    top: 0;
}

.answer-list02 li:first-child:before {
    content: '';
    width: 0;
    height: 0;
    border-top: 35px solid transparent;
    border-bottom: 40px solid transparent;
    border-right: 24px solid #5ebae7;
    position: absolute;
    left: -23px;
    top: 0;
}

.answer-list02 li:last-child:after {
    content: '';
    width: 0;
    height: 0;
    border-top: 35px solid transparent;
    border-bottom: 40px solid transparent;
    border-left: 24px solid #84e852;
    position: absolute;
    right: -23px;
    top: 0;
}


/*--------------------------------------------------------------------------------
　▼ Question.2 ダムにはどんな種類があるの？
--------------------------------------------------------------------------------*/
.lesson-box02 {
    padding: 90px 0 0;
}

.lesson-box02 .answer-box {
    padding: 30px 40px;
}

.lesson-box02 .wrap-box {
    border-bottom: 1px solid #c9caca;
    padding: 40px 0;
}

.lesson-box02 .wrap-box:last-child {
    border-bottom: none;
}

.lesson-box02 .wrap-box .left-box {
    width: 27%;
}

.lesson-box02 .wrap-box .right-box {
    padding-left: 5%;
}

.lesson-box02 .left-box img {
    border: 1px solid #5ebae7;
    border-radius: 10px;
}

.wrap-box .right-box .sub-txt {
    color: #5ebae7;
    font-size: 2rem;
    font-family: 'M PLUS 1p';
    font-weight: 300;
    text-align: left;
}

.wrap-box .right-box h3 {
    color: #5ebae7;
    font-size: 3rem;
    font-family: 'mplus-regular';
    font-weight: 400;
    margin: 10px auto 20px;
}

.wrap-box .right-box p {
    font-size: 1.6rem;
    font-family: 'M PLUS 1p';
    font-weight: 300;
    line-height: 2.9rem;
}


/*--------------------------------------------------------------------------------
　▼ Question.3 ダムの仕組みはどうなっているの？
--------------------------------------------------------------------------------*/
.lesson-box03 .answer-box {
    padding: 50px;
}

.lesson03-wrap-img {
    font-size: 0;
    line-height: 0;
    padding: 0 0 50px;
}

.lesson03-wrap {
    border-top: 1px dotted #231815;
    padding: 50px 0 0;
}

.lesson03-wrap .list {
    padding: 0 0 50px;
}

.lesson03-wrap .list li {
    display: inline-block;
    vertical-align: top;
    width: 30%;
}

.lesson03-wrap .list li:nth-child(2) {
    margin: 0 5%;
}

.lesson03-wrap .list li h3 {
    color: #5ebae7;
    font-size: 3rem;
    font-family: 'mplus-regular';
    font-weight: normal;
    margin: 0 0 30px;
}

.lesson03-wrap .list li h3 span {
    font-family: 'mplus-regular';
    font-size: 1.9rem;
}

.lesson03-wrap .list li p {
    font-size: 1.6rem;
    line-height: 2.9rem;
}

.lesson03-wrap .wrap-box .left-box {
    padding-right: 3%;
}

.lesson03-wrap .wrap-box .right-box {
    padding-left: 3%;
}

.lesson03-wrap .wrap-box h3 {
    color: #5ebae7;
    font-size: 3rem;
    font-weight: normal;
    font-family: 'mplus-regular';
    margin: 0 0 30px;
}

.lesson03-wrap .wrap-box h3 span {
    font-family: 'mplus-regular';
    font-size: 1.9rem;
}

.lesson03-wrap .wrap-box p {
    font-size: 1.6rem;
    font-family: kozuka-gothic-pr6n, sans-serif;
    line-height: 2.9rem;
}

/*--------------------------------------------------------------------------------
　▼ Question.4
--------------------------------------------------------------------------------*/
.lesson-box04 .wrap-box {
    padding: 25px 0;
}

.lesson-box04 .answer-box {
    margin: 0 auto;
    padding: 30px 70px;
    width: 910px;
}

.lesson-box04 .wrap-box:last-child {
    border-bottom: none;
}

.lesson-box04 .wrap-box .left-box {
    width: 20%;
}

.lesson-box04 .wrap-box .left-box img {
    border-radius: 10px;
}

.lesson-box04 .wrap-box .right-box {
    padding-left: 5%;
}

.lesson-box04 .right-box h3 {
    margin: 0 0 30px;
}

.lesson-box04 .right-box .num {
    display: inline-block;
    padding-right: 2%;
    vertical-align: middle;
}

.lesson-box04 .right-box .num-in {
    background-color: #5ebae7;
    border-radius: 50%;
    display: table-cell;
    color: #fff;
    font-size: 3.1rem;
    height: 57px;
    text-align: center;
    vertical-align: middle;
    width: 57px;
}

.lesson-box04 .right-box p {
    font-size: 1.6rem;
    line-height: 2.9rem;
}

.banner-box {
    margin: 60px auto;
    width: 82%;
}

.link-box {
    margin: 0 auto;
    max-width: 345px;
}

.link-box a {
    background-color: #fff;
    border: 2px solid #84e852;
    color: #84e852;
    display: block;
    font-size: 2.1rem;
    padding: 22px 30px;
    position: relative;
    text-decoration: none;
}

.link-box a span {
    position: absolute;
    right: 30px;
}

.all-menu.derived {
    display: none;
}

/*---------------------------------タブレット用----------------------------------*/
/*-----------------------------------------------------------------------------*/
@media only screen and (max-width: 1060px) {

    .lesson-box04 .answer-box {
        width: 100%;
    }
}


/*---------------------------------スマホ横から----------------------------------*/
/*-----------------------------------------------------------------------------*/
@media only screen and (max-width: 767px) {

    /*--------------------------------------------------------------------------------
    　▼ レッスンページ共通箇所
    --------------------------------------------------------------------------------*/
    .main-title-box .inner-box {
        font-size: 0;
        line-height: 1;
    }

    .main-title-box p {
        font-size: 1.5rem;
    }

    .lesson-title-wrap {
        margin: 30px 0 20px;
    }

    .lesson-title-wrap .sec-title {
        font-size: 2rem;
        font-family: 'M PLUS 1p';
        font-weight: 400;
    }

    .lesson-title-wrap .faq-num img {
        width: 146px;
    }

    .lesson-title-wrap p {
        font-size: 1.3rem;
        line-height: 2.1rem;
        text-align: left;
    }

    .answer-title .title-inner {
        width: 85%;
    }

    .answer-title .span-img {
        width: 20%;
    }

    .answer-title .answer-title01 {
        font-size: 1.7rem;
        text-align: left;
        width: 80%;
    }

    .answer-in p {
        font-size: 1.2rem;
        line-height: 2rem;
    }

    .answer-box .list01 li p, .answer-box .list02 li p {
        font-size: 1.1rem;
        margin: 0;
    }

    .line-box {
        padding: 30px 0;
    }

    .lesson-point {
        width: 90%;
    }

    .lesson-point .list li {
        display: block;
    }

    .lesson-point .list li:nth-child(2) {
        text-align: center;
        width: 100%;
    }

    .lesson-point .list li:first-child img {
        position: static;
        width: 100%;
    }

    .lesson-point .list .for-sp-balloon {
        display: block;
    }

    .lesson-point .list li:nth-child(2) img {
        width: 181px;
    }

    .lesson-point .list li:last-child {
        display: none;
    }

    .sp-point {
        display: inline-block;
        background-color: #fff;
        border: 1px solid #5ebae7;
        border-radius: 25px;
        color: #5ebae7;
        font-size: 1.4rem;
        line-height: 2.2rem;
        padding: 15px;
        position: relative;
        width: 100%;
        display: none;
    }

    .sp-point:after,
    .sp-point:before {
        content: "";
        position: absolute;
        right: 0;
        left: 0;
        width: 0;
        height: 0;
        margin: auto;
    }

    .sp-point:before {
        content: "";
        position: absolute;
        bottom: -21px;
        right: 50px;
        width: 0;
        height: 0;
        border-top: 21px solid #5ebae7;
        border-left: 9px solid transparent;
        border-right: 9px solid transparent;
        transform-origin: left top;
        transform: skewX(40deg);
    }

    .sp-point:after {
        content: "";
        position: absolute;
        bottom: -20px;
        right: 50px;
        width: 0;
        height: 0;
        border-top: 20px solid #fff;
        border-left: 7px solid transparent;
        border-right: 7px solid transparent;
        transform-origin: left top;
        transform: skewX(40deg);
    }

    /*--------------------------------------------------------------------------------
    　▼ アニメーション
    --------------------------------------------------------------------------------*/
    .lesson-animation {
        position: relative;
        padding: 5% 0;
    }

    .lesson-animation .iframe-wrapper {
        padding: 0;
    }

    /*--------------------------------------------------------------------------------
    　▼ lesson-main
    --------------------------------------------------------------------------------*/
    .lesson-main {
        padding: 0;
    }

    .lesson-main p {
        font-size: 1.2rem;
        line-height: 2rem;
        padding: 0;
        position: relative;
        top: -50px;
        z-index: 99;
    }

    /*--------------------------------------------------------------------------------
    　▼ main-title-box これだけは知っておこう！ダムの基礎知識
    --------------------------------------------------------------------------------*/
    .main-title-box .inner-box img {
        margin: 0 auto;
        width: 80%;
    }

    .main-title-box .sec-title {
        font-size: 2.6rem;
        line-height: 3.6rem;
        padding: 10px 0;
    }

    /*--------------------------------------------------------------------------------
    　▼ Question.1
    --------------------------------------------------------------------------------*/
    .lesson-box01 .answer-box {
        padding: 20px 15px;
    }

    .pc-list {
        display: none;
    }

    .sp-list {
        display: table;
        table-layout: fixed;
        width: 100%;
    }

    .sp-list .sp-list01 {
        display: table-cell;
        padding-right: 7%;
        vertical-align: top;
        width: 40%;
    }

    .sp-list .sp-list02 {
        display: table-cell;
        font-size: 0;
        vertical-align: top;
        width: 60%;
    }

    .sp-list02-in li {
        color: #5ebae7;
        text-align: center;
    }

    .sp-list02-in li p {
        font-size: 1.3rem;
        line-height: 2.2rem;
        margin: 0 auto 10px !important;
    }

    .answer-in04 .left-box {
        float: none;
        padding-right: 0;
        width: 100%;
    }

    .answer-in04 .right-box {
        float: none;
        padding-left: 0;
        width: 100%;
    }

    .answer-box .list03 li {
        margin: 0 0 20px;
        width: 48%;
    }

    .answer-box .list03 li:nth-child(odd) {
        margin-right: 2%;
    }

    .answer-box .list03 li:nth-child(even) {
        margin-left: 2%;
    }

    .answer-in03 .center {
        text-align: left !important;
    }

    .answer-box .answer-in03 .list li p {
        margin: 0;
    }

    .answer-in04:last-child:after {
        margin-bottom: 0;
    }

    /*--------------------------------------------------------------------------------
    　▼ 2 ダムにはどんな種類があるの？
    --------------------------------------------------------------------------------*/
    .lesson-box02 {
        padding: 30px 0 0;
    }

    .lesson-box02 .answer-box {
        padding: 20px 15px;
    }

    .lesson-box02 .wrap-box {
        padding: 20px 0;
    }

    .lesson-box02 .wrap-box .left-box {
        display: block;
        width: 100%;
    }

    .lesson-box02 .wrap-box .right-box {
        padding: 20px 0 0;
    }

    .wrap-box .right-box .sub-txt {
        font-size: 1.2rem;
    }

    .wrap-box .right-box h3 {
        font-size: 1.8rem;
    }

    .wrap-box .right-box p {
        font-size: 1.2rem;
        line-height: 2rem;
    }

    /*--------------------------------------------------------------------------------
    　▼ Question.3 ダムの仕組みはどうなっているの？
    --------------------------------------------------------------------------------*/
    .lesson-box03 .answer-box {
        padding: 20px 15px;
    }

    .lesson03-wrap-img {
        padding: 0 0 30px;
    }

    .lesson03-wrap {
        padding: 30px 0 0;
    }

    .lesson03-wrap .list {
        padding: 0;
    }

    .lesson03-wrap .list li {
        display: block;
        width: 100%;
    }

    .lesson03-wrap .list li:nth-child(2) {
        margin: 20px 0;
    }

    .lesson03-wrap .list li h3 {
        font-size: 1.8rem;
        margin: 0 0 10px;
    }

    .lesson03-wrap .list li h3 span {
        font-size: 1.5rem;
    }

    .lesson03-wrap .list li p {
        font-size: 1.2rem;
        font-family: 'M+ Type-1 (general-j) Light';
        line-height: 2rem;
    }

    .lesson03-wrap .wrap-box .left-box {
        padding: 20px 0 0;
    }

    .lesson03-wrap .wrap-box .right-box {
        padding: 20px 0 0;
    }

    .lesson03-wrap .wrap-box h3 {
        font-size: 1.8rem;
        margin: 0 0 10px;
    }

    .lesson03-wrap .wrap-box h3 span {
        font-size: 1.5rem;
    }

    .lesson03-wrap .wrap-box p {
        font-size: 1.2rem;
        font-family: 'M+ Type-1 (general-j) Light';
        line-height: 2rem;
    }

    /*--------------------------------------------------------------------------------
    　▼ Question.4
    --------------------------------------------------------------------------------*/
    .lesson-box04 .answer-box {
        padding: 20px 15px;
    }

    .lesson-box04 .wrap-box {
        padding: 25px 0 0;
    }

    .lesson-box04 .wrap-box .left-box {
        margin: 0 auto;
        width: 70%;
    }

    .lesson-box04 .wrap-box .right-box {
        padding: 20px 0 0;
        width: 100%;
    }

    .lesson-box04 .right-box h3 {
        margin-bottom: 20px;
    }

    .lesson-box04 .right-box .num-in {
        font-size: 2rem;
        height: 36px;
        width: 36px;
    }

    .banner-box {
        margin: 20px auto 0;
        width: 100%;
    }

    .link-box a {
        font-size: 1.3rem;
        padding: 15px 20px;
    }

    .all-menu.derived {
        display: block;
    }
}