body {
    background-color: #fff;

    font-size: 16px;
    font-family: "Noto Sans JP", sans-serif;
    font-optical-sizing: auto;
    font-weight: 350;
    font-style: normal;
    color: #1C1C1C;
    letter-spacing: 0.05em;
    line-height: 1.8em;
}

img {
    width: 100%;
    height: auto;
}

.inner {
    margin: 0 auto;
    max-width: 1080px;
    width: 75%;
}

.inner-small {
    margin: 0 auto;
    max-width: 800px;
    width: 90%;
}

.inner-big {
    margin: 0 auto;
    max-width: 1320px;
    width: 90%;
}

@media (max-width: 768px) {

    .inner,
    .inner-small {
        width: 90%;
    }
}

.br-sp {
    display: none;
}

@media (max-width: 768px) {
    .br-sp {
        display: inline;
    }
}

/* ヘッダー */

.header {
    position: fixed;
    margin-top: 20px;
    width: 100%;
    display: flex;
    z-index: 90;
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ロゴ */
.logo__pc {
    width: 40%;
}

.logo__sp {
    display: none;
}

@media (max-width: 768px) {

    /* ロゴ切り替え */
    .logo__pc {
        display: none;
    }

    .logo__sp {
        display: block;
        width: 60%;
    }

    .header__nav .logo__sp {
        margin: 0 auto;
    }
}

/* ヘッダーナビ */
.header__nav-list {
    display: flex;
    column-gap: 30px;
}

.header__nav-item {
    position: relative;
    display: inline-block;

    font-family: "Alata", sans-serif;
    font-weight: 400;
    font-style: normal;
    font-size: 25px;
}

/* 下線アニメーション */
.header__nav-item::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -5px;

    width: 0;
    height: 2px;
    background-color: #1C1C1C;

    transition: width 0.3s ease;
}

.header__nav-item:hover::after {
    width: 100%;
}

/* ハンバーガーメニュー内アイコン消す */
.contact__sns-sp {
    display: none;
}

/* スマホ表示ナビ */
@media (max-width: 768px) {

    .header__toggle {
        z-index: 1010;
    }

    .header__toggle span {
        display: block;
        width: 30px;
        height: 3px;
        background-color: #1C1C1C;
        margin: 8px 0;
        transition: 0.3s;
    }

    /* 線から×のアニメーション */
    .header__toggle.is-active span:nth-child(1) {
        transform: rotate(45deg) translate(4px, 4px);
    }

    .header__toggle.is-active span:nth-child(2) {
        transform: rotate(-45deg) translate(4px, -4px);
    }


    .header__nav {
        /* 開く前は非表示にする */
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.4s ease, visibility 0.4s ease;

        /* 開いた後のメニュー見た目 */
        text-align: center;

        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background-color: #fff;

    }

    .header__nav.is-active {
        /* ふわっと表示 */
        opacity: 1;
        visibility: visible;
    }

    .header__nav-list {
        margin-top: 130px;
        display: flex;
        flex-direction: column;
        align-items: center;
        row-gap: 50px;
    }

    .contact__sns-sp {
        margin-top: 50px;
        display: flex;
        justify-content: center;
    }

}


/* 下層mv */
.mv-subpage {
    height: 368px;
    text-align: center;
    padding: 175px 0 0;

    background-color: #F1F8FF;
}

/* 制作物詳細 */
/* mv */
.w-detail {
    width: 100%;
    aspect-ratio: 5 / 3;
    max-height: 600px;
    display: flex;
    column-gap: 60px;
    align-items: center;
    justify-content: center;

    background-color: #F1F8FF
}

.button-tosite {
    margin-top: 35px;
}

.w-detail .img-pc {
    width: 45%;
}

.mv__title-subpage {
    font-size: 45px;
    font-family: "Alata", sans-serif;
    font-weight: 400;
    font-style: normal;
    color: #1C1C1C;
}

@media (max-width: 768px) {
    .w-detail {
        flex-direction: column-reverse;
        row-gap: 30px;
        aspect-ratio: 2 / 5;
        padding-top: 60px;

        text-align: center;
    }

    .w-detail .img-pc {
        width: 90%;
        max-width: 500px;
    }
}

/* 概要 */
.outline__table {
    margin-top: 100px;

    border: 1px solid #80A6CB;
    border-radius: 10px;
    border-collapse: separate;
}

.outline__title {
    border-top: 1px solid #80A6CB;
    width: 170px;
    text-align: center;
    vertical-align: middle;
}

.outline__explain {
    border-top: 1px solid #80A6CB;
    border-left: 1px solid #80A6CB;
    padding: 25px;
}

.outline__explain.url {
    transition: color 0.3s ease;
}

.outline__explain.url:hover {
    color: #80A6CB;
}

.outline__table tr:first-child .outline__title,
.outline__table tr:first-child .outline__explain {
    border-top: none;
}

.explain__list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    column-gap: 25px;
}

.explain__list.period {
    column-gap: 0px;
}

.explain__list__item {
    display: flex;
    align-items: center;
    column-gap: 10px;
}

@media (max-width: 768px) {

    .outline__table,
    .outline__table tbody,
    .outline__table tr,
    .outline__table th,
    .outline__table .outline__explain {
        display: block;
        width: 100%;
        border: none;
    }

    .outline__table {
        border: 1px solid #80A6CB;
    }

    .outline__table th {
        padding-top: 10px;
    }

    .outline__table .outline__explain {
        display: flex;
        border-bottom: 1px solid #80A6CB;
        justify-content: center;
    }

    .outline__table tr:last-child .outline__explain {
        border-bottom: none;
    }

    .outline__explain.url {
        text-align: center;
    }

}

/* 詳細説明 */
.explain__text {
    display: flex;
    column-gap: 5vw;
    padding: 60px 0;
    align-items: first baseline;

    border-bottom: 1px solid #ECECEC;
}

.explain__text.first {
    margin-top: 50px;
}

.explain__text.border-none {
    border: none;
}

.explain__title {
    min-width: 200px;
    text-align: left;
}

.explain__detail {
    transform: translateY(-6px);
}

.explain__impression {
    display: flex;
    flex-wrap: wrap;
    column-gap: 15px;
    row-gap: 15px;
}

.impression__item {
    background-color: #F1F8FF;
    border-radius: 60px;
    padding: 10px 30px;
}

@media (max-width: 768px) {
    .explain__text {
        flex-direction: column;
        row-gap: 20px;
    }

    .explain__title {
        text-align: center;
        width: 100%;
    }

    .explain__impression {
        justify-content: center;
    }
}

/* 課題と解決策 */
.problem-solving {
    margin-top: 50px;
    border: 1px solid #80A6CB;
    border-radius: 10px;
    padding: 60px;
    text-align: center;
}

.problem,
.solving {
    display: flex;
}

.problem-solving .text__container {
    display: flex;
    flex-direction: column;
    row-gap: 10px;
}

.problem-solving h4 {
    min-width: 150px;
}

.p-s__text {
    text-align: left;
}

.problem-solving .arrow-down {
    margin: 20px auto;
}

@media (max-width: 768px) {

    .problem-solving {
        padding: 20px;
    }

    .problem,
    .solving {
        flex-direction: column;
        row-gap: 20px;
    }
}

/* point */
.point__img__container {
    margin-top: 60px;
    display: flex;
    justify-content: space-between;

}

.point__img {
    width: 47%;
}

.point .img__cotainer {
    display: flex;
}

/* ページ遷移ボタン */
.transition__button {
    margin-top: 150px;
    display: flex;
    justify-content: space-between;
}

.transition__button .button {
    font-size: clamp(14px, 1.4vw, 16px);
}

@media (max-width: 768px) {
    .transition__button .button {
        font-size: 16px;
    }
}

/* セクションタイトル */
.title__english {
    margin-top: 180px;
    text-align: center;

    font-size: 40px;
    font-family: "Alata", sans-serif;
    font-weight: 400;
    color: #80A6CB;
}

.title__jp {
    font-size: 30px;
    font-weight: 500;
    line-height: 1.8em;
}

.title__jp-small {
    font-size: 20px;
    font-weight: 500;
    line-height: 1.8em;
}

/* client */
.works__client {
    font-weight: 600;
}

/* ボタン */
.button {
    padding: 15px 40px;
    border-radius: 30px;
}

/* 右向き矢印 */
.arrow {
    display: inline-block;
    vertical-align: 20%;
    position: relative;
    width: 1em;
    height: 0.13em;
    background: currentColor;
}

.arrow::before {
    content: '';
    width: 0.65em;
    height: 0.65em;
    border: 0.13em solid currentColor;
    border-left: 0;
    border-bottom: 0;
    transform: rotate(45deg);
    transform-origin: top right;
    position: absolute;
    top: 50%;
    right: -0.05em;
    box-sizing: border-box;
}

/* 水色下向き矢印に変更 */
.arrow-down {
    color: #80A6CB;
    width: 0.2em;
    height: 2em;
}

.arrow-down::before {
    transform: rotate(135deg);
    right: 0.1em;
    top: 105%;
    width: 1em;
    height: 1em;
    border-width: 0.2em;
}

/* ボタン内の矢印 */
.button .arrow {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.button:hover .arrow {
    transform: translateX(5px);
}

/* ボタンごとに矢印の色指定 */
.button-white .arrow {
    color: #80A6CB;
}

.button-white:hover .arrow {
    color: #fff;
}

.button-blue .arrow {
    color: #fff;
}

.button-blue:hover .arrow {
    color: #80A6CB;
}

/* 白背景ボタン */
.button-white {
    border: 1.5px solid #b3c8e0;
    background-color: #fff;
    transition: background-color 0.3s ease;
}

.button-white:hover {
    border-color: #80A6CB;
    background-color: #80A6CB;
    color: #fff;
}

/* 青背景ボタン */
.button-blue {
    background-color: #80A6CB;
    color: #fff;
    transition: background-color 0.3s ease;
}

.button-blue:hover {
    border: 1.5px solid #b3c8e0;
    background-color: #fff;
    color: #1C1C1C;
}

/* 制作物一覧へボタン */

.button-toworks {
    margin-top: 100px;
    text-align: center;
}

/* ドット */
.dot {
    display: block;

    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #80A6CB;
    transform: translateY(1px);
    flex-shrink: 0;
}

.dot.first-baseline {
    transform: translateY(-2px);
}

.dot-list {
    display: flex;
    column-gap: 10px;
    align-items: first baseline;
}

/* about */
.about__content {
    margin-top: 85px;

    display: flex;
    align-items: center;
    column-gap: 60px;
    justify-content: center;
}

.about__img {
    width: 417px;
}

.about__text {
    width: 323px;
}

.about__detail {
    margin-top: 17px;
}

.button-toabout {
    margin-top: 45px;
}

@media (max-width: 768px) {
    .about__content {
        display: block;
        text-align: center;
    }

    .about__img {
        width: 100%;
        max-width: 400px;
    }

    .about__text {
        margin-top: 30px;
        display: inline-block;

        width: 100%;
        max-width: 400px;
    }

    .about__detail {
        text-align: left;
    }
}

/* contact */
.contact {
    margin-top: 190px;
    padding: 60px 0;
    text-align: center;
    color: #fff;
    background-color: #80A6CB;
}

.contact .title__english {
    margin-top: 0;
    color: #fff;
}


.contact__mail {
    margin-top: 50px;
    font-family: "Alata", sans-serif;
    font-weight: 400;
    font-style: normal;
    font-size: 25px;
}

.contact__sns {
    margin-top: 50px;
    display: flex;
    justify-content: center;

}

.sns-icon {
    width: 50%;
}

/* footer */
.footer__container {
    margin-top: 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer__logo {
    width: 60%;
}

/* footer__nav */

.footer__nav-list {
    display: flex;
    column-gap: 30px;
}

.footer__nav-item {
    font-family: "Alata", sans-serif;
    font-weight: 400;
    font-style: normal;
    font-size: 25px;
}

@media (max-width: 768px) {

    .footer__container {
        width: 80%;
    }

    .footer__nav-list {
        display: flex;
        flex-direction: column;
        row-gap: 20px;


    }
}

.footer__copyright {
    margin: 40px 0;
    text-align: center;

    font-family: "Alata", sans-serif;
    font-weight: 400;
    font-style: normal;
    font-size: 16px;
}

/* works */
.works-tag {
    margin-top: 10px;
    color: #80A6CB;
    font-size: 15px;
}