/* =========================================================
   WHITENING
========================================================= */

.whitening-main {
    background: #fff;
    color: #303a35;
}

.whitening-main *,
.whitening-main *::before,
.whitening-main *::after {
    box-sizing: border-box;
}

.whitening-main .container {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
}

.whitening-main .section {
    padding: 70px 0;
}

.whitening-main .section--gray {
    background: #f5f7f5;
}

.whitening-main .section--green {
    background: #405a4d;
    color: #fff;
}


/* =========================================================
   BREADCRUMB
========================================================= */

.whitening-main .breadcrumb {
    border-bottom: 1px solid #e3e8e5;
    background: #fff;
}

.whitening-main .breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin: 0;
    padding: 14px 0;
    list-style: none;
    color: #818a85;
    font-size: 11px;
}

.whitening-main .breadcrumb li:not(:last-child)::after {
    content: "/";
    margin-left: 7px;
    color: #b4bbb7;
}

.whitening-main .breadcrumb a {
    color: #65716a;
    text-decoration: none;
}


/* =========================================================
   HEADINGS
========================================================= */

.whitening-main .section-en {
    margin: 0 0 10px;
    color: #789083;
    font-family: Arial, sans-serif;
    font-size: 10px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: .22em;
}

.whitening-main .section--green .section-en,
.whitening-main .section-heading--light .section-en {
    color: #b8cbc0;
}

.whitening-main .section-heading {
    width: 100%;
    margin-bottom: 48px;
}

.whitening-main .section-heading h2,
.whitening-main .whitening-intro h2,
.whitening-main .whitening-image-text h2,
.whitening-main .whitening-closing h2,
.whitening-main .whitening-reservation h2 {
    margin: 0;
    color: #29372f;
    font-family:
        "Noto Serif JP",
        "Yu Mincho",
        "Hiragino Mincho ProN",
        serif;
    font-size: 32px;
    font-weight: 500;
    line-height: 1.55;
    letter-spacing: .025em;
}

.whitening-main .section--green h2,
.whitening-main .section-heading--light h2 {
    color: #fff;
}

.whitening-main .section-heading__lead {
    max-width: 900px;
    margin: 20px 0 0;
    color: #5d6962;
    font-size: 15px;
    line-height: 2;
}


/* =========================================================
   TEXT
========================================================= */

.whitening-main p {
    overflow-wrap: break-word;
}

.whitening-main .text-block {
    width: 100%;
}

.whitening-main .text-block p {
    width: 100%;
    margin: 0 0 18px;
    color: #59655e;
    font-size: 16px;
    line-height: 2.15;
}

.whitening-main .text-block p:last-child {
    margin-bottom: 0;
}


/* =========================================================
   INTRO
========================================================= */

.whitening-intro {
    padding-top: 80px !important;
}

.whitening-intro__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(420px, .95fr);
    gap: 65px;
    align-items: center;
}

.whitening-intro__content {
    min-width: 0;
}

.whitening-intro__content h2 {
    margin-bottom: 27px !important;
}

.whitening-intro__content > p:not(.section-en) {
    width: 100%;
    margin: 0 0 18px;
    color: #59655e;
    font-size: 16px;
    line-height: 2.1;
}

.whitening-intro__content > p:last-child {
    margin-bottom: 0;
}

.whitening-intro__image {
    min-width: 0;
}

.whitening-intro__image img {
    display: block;
    width: 100%;
    height: 520px;
    object-fit: cover;
}


/* =========================================================
   CAUSE
========================================================= */

.whitening-cause-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: #dce3df;
    border: 1px solid #dce3df;
}

.whitening-cause-card {
    position: relative;
    min-height: 250px;
    padding: 38px 35px;
    background: #fff;
}

.whitening-cause-card__number {
    display: block;
    margin-bottom: 22px;
    color: #9eafa5;
    font-size: 30px;
    line-height: 1;
}

.whitening-cause-card h3 {
    margin: 0 0 15px;
    color: #304138;
    font-size: 18px;
    font-weight: 600;
}

.whitening-cause-card p {
    margin: 0;
    color: #657069;
    font-size: 14px;
    line-height: 2;
}


/* =========================================================
   IMAGE + TEXT
========================================================= */

.whitening-image-text {
    display: grid;
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    gap: 65px;
    align-items: center;
}

.whitening-image-text__image img {
    display: block;
    width: 100%;
    height: 470px;
    object-fit: cover;
}

.whitening-image-text__content h2 {
    margin-bottom: 25px;
}

.whitening-image-text__content > p:not(.section-en) {
    margin: 0 0 18px;
    color: #e5ece8;
    font-size: 15px;
    line-height: 2.1;
}

.whitening-image-text__content > p:last-child {
    margin-bottom: 0;
}


/* =========================================================
   TREATMENTS
========================================================= */

.whitening-treatment {
    display: grid;
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    gap: 60px;
    align-items: center;
    margin-bottom: 100px;
}

.whitening-treatment:last-child {
    margin-bottom: 0;
}

.whitening-treatment--reverse .whitening-treatment__image {
    order: 2;
}

.whitening-treatment--reverse .whitening-treatment__content {
    order: 1;
}

.whitening-treatment__image img {
    display: block;
    width: 100%;
    height: 450px;
    object-fit: cover;
}

.whitening-treatment__number {
    margin: 0 0 10px;
    color: #82968a;
    font-size: 35px;
    line-height: 1;
}

.whitening-treatment__content h3 {
    margin: 0 0 22px;
    color: #2e4036;
    font-family:
        "Noto Serif JP",
        "Yu Mincho",
        serif;
    font-size: 27px;
    font-weight: 500;
}

.whitening-treatment__content > p:not(.whitening-treatment__number) {
    margin: 0 0 17px;
    color: #606c65;
    font-size: 15px;
    line-height: 2;
}


/* =========================================================
   CHECK LIST
========================================================= */

.check-list {
    margin: 25px 0 0;
    padding: 0;
    list-style: none;
}

.check-list li {
    position: relative;
    margin: 0;
    padding: 11px 0 11px 30px;
    border-bottom: 1px solid #e2e6e3;
    color: #4d5c54;
    font-size: 14px;
}

.check-list li::before {
    content: "✓";
    position: absolute;
    top: 11px;
    left: 3px;
    color: #547463;
    font-weight: 700;
}


/* =========================================================
   TABLE
========================================================= */

.table-scroll {
    width: 100%;
    overflow-x: auto;
}

.whitening-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.whitening-table th,
.whitening-table td {
    padding: 20px 22px;
    border: 1px solid #d7ded9;
    font-size: 14px;
    line-height: 1.7;
    text-align: left;
    vertical-align: middle;
}

.whitening-table thead th {
    background: #405a4d;
    color: #fff;
    font-weight: 600;
    text-align: center;
}

.whitening-table tbody th {
    width: 28%;
    background: #eef2ef;
    color: #35463d;
    font-weight: 600;
}

.whitening-table td {
    color: #59655e;
}

.whitening-table--comparison td {
    width: 36%;
}

.whitening-table--price td {
    text-align: center;
}

.whitening-table--price strong {
    color: #3e5e4d;
    font-size: 19px;
}

.whitening-table th span {
    font-size: 11px;
    font-weight: 400;
}


/* =========================================================
   RECOMMEND
========================================================= */

.whitening-recommend {
    padding: 35px 40px;
    border: 1px solid #dbe2de;
    background: #fff;
}

.whitening-recommend ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0 45px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.whitening-recommend li {
    position: relative;
    padding: 17px 10px 17px 35px;
    border-bottom: 1px solid #e3e7e5;
    color: #46564d;
    font-size: 15px;
}

.whitening-recommend li::before {
    content: "✓";
    position: absolute;
    left: 5px;
    color: #547463;
    font-weight: 700;
}


/* =========================================================
   FLOW
========================================================= */

.whitening-flow {
    border-top: 1px solid #d7dfda;
}

.whitening-flow__item {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    padding: 32px 0;
    border-bottom: 1px solid #d7dfda;
}

.whitening-flow__number {
    color: #779083;
    font-size: 34px;
}

.whitening-flow__content h3 {
    margin: 0 0 10px;
    color: #33463b;
    font-size: 18px;
    font-weight: 600;
}

.whitening-flow__content p {
    margin: 0;
    color: #647068;
    font-size: 14px;
    line-height: 2;
}


/* =========================================================
   PRICE
========================================================= */

.whitening-price__note {
    margin-top: 20px;
}

.whitening-price__note p {
    margin: 5px 0;
    color: #747d78;
    font-size: 11px;
    line-height: 1.8;
}


/* =========================================================
   MAINTENANCE
========================================================= */

.whitening-maintenance-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: rgba(255, 255, 255, .2);
}

.whitening-maintenance-grid article {
    padding: 35px 30px;
    background: rgba(255, 255, 255, .06);
}

.whitening-maintenance-grid article > span {
    display: block;
    margin-bottom: 25px;
    color: #bacbc1;
    font-size: 29px;
}

.whitening-maintenance-grid h3 {
    margin: 0 0 15px;
    color: #fff;
    font-size: 17px;
}

.whitening-maintenance-grid p {
    margin: 0;
    color: #e1e8e4;
    font-size: 13px;
    line-height: 2;
}


/* =========================================================
   LIMIT
========================================================= */

.whitening-limit-box {
    padding: 40px;
    border-left: 4px solid #567363;
    background: #f5f7f5;
}

.whitening-limit-box p {
    margin: 0 0 17px;
    color: #5c6861;
    font-size: 15px;
    line-height: 2.05;
}

.whitening-limit-box p:last-child {
    margin-bottom: 0;
}

.whitening-limit-box__link {
    margin-top: 25px !important;
}

.whitening-limit-box__link a {
    color: #3f6752;
    font-weight: 600;
    text-decoration: none;
}


/* =========================================================
   RISK
========================================================= */

.whitening-risk {
    padding: 35px 40px;
    background: #fff;
    border: 1px solid #dce2de;
}

.whitening-risk ul {
    margin: 0;
    padding: 0 0 0 22px;
}

.whitening-risk li {
    margin-bottom: 12px;
    color: #5d6862;
    font-size: 14px;
    line-height: 1.9;
}

.whitening-risk li:last-child {
    margin-bottom: 0;
}


/* =========================================================
   FAQ
========================================================= */

.whitening-faq {
    border-top: 1px solid #d9dfdb;
}

.whitening-faq details {
    border-bottom: 1px solid #d9dfdb;
}

.whitening-faq summary {
    position: relative;
    padding: 25px 60px 25px 50px;
    color: #34473c;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}

.whitening-faq summary::-webkit-details-marker {
    display: none;
}

.whitening-faq summary::before {
    content: "Q";
    position: absolute;
    top: 21px;
    left: 10px;
    color: #62806f;
    font-family: Georgia, serif;
    font-size: 23px;
    font-weight: 400;
}

.whitening-faq summary::after {
    content: "+";
    position: absolute;
    top: 21px;
    right: 15px;
    color: #668073;
    font-size: 22px;
    font-weight: 300;
}

.whitening-faq details[open] summary::after {
    content: "−";
}

.whitening-faq details > div {
    padding: 0 50px 25px;
}

.whitening-faq details p {
    margin: 0;
    color: #626e67;
    font-size: 14px;
    line-height: 2;
}


/* =========================================================
   CLOSING
========================================================= */

.whitening-closing {
    padding: 65px 0;
    background: #eef3ef;
}

.whitening-closing__inner {
    width: 100%;
}

.whitening-closing h2 {
    margin-bottom: 25px;
}

.whitening-closing__inner > p:not(.section-en) {
    width: 100%;
    margin: 0 0 17px;
    color: #59665f;
    font-size: 15px;
    line-height: 2.1;
}


/* =========================================================
   RESERVATION
========================================================= */

.whitening-reservation {
    padding: 55px 0;
    background: #fff;
}

.whitening-reservation__grid {
    display: grid;
    grid-template-columns: 1fr 580px;
    gap: 55px;
    align-items: center;
}

.whitening-reservation__content h2 {
    margin-bottom: 15px;
}

.whitening-reservation__content > p:not(.section-en) {
    margin: 0;
    color: #606c65;
    font-size: 14px;
    line-height: 2;
}

.whitening-reservation__frame {
    width: 100%;
}

.whitening-reservation__frame iframe {
    display: block;
    width: 100%;
    height: 210px;
    border: 0;
}


/* =========================================================
   TABLET
========================================================= */

@media (max-width: 960px) {

    .whitening-intro__grid {
        grid-template-columns: 1fr 1fr;
        gap: 35px;
    }

    .whitening-intro__image img {
        height: 440px;
    }

    .whitening-image-text,
    .whitening-treatment {
        gap: 35px;
    }

    .whitening-reservation__grid {
        grid-template-columns: 1fr;
    }

}


/* =========================================================
   SMARTPHONE
========================================================= */

@media (max-width: 767px) {

    .whitening-main .container {
        width: calc(100% - 36px);
    }

    .whitening-main .section {
        padding: 50px 0;
    }

    .whitening-main .section-heading {
        margin-bottom: 35px;
    }

    .whitening-main .section-heading h2,
    .whitening-main .whitening-intro h2,
    .whitening-main .whitening-image-text h2,
    .whitening-main .whitening-closing h2,
    .whitening-main .whitening-reservation h2 {
        font-size: 24px;
        line-height: 1.6;
    }


    /* INTRO */

    .whitening-intro {
        padding-top: 55px !important;
    }

    .whitening-intro__grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .whitening-intro__image {
        order: -1;
    }

    .whitening-intro__image img {
        height: auto;
        aspect-ratio: 4 / 3;
    }

    .whitening-intro__content > p:not(.section-en) {
        font-size: 14px;
        line-height: 2;
    }


    /* CAUSE */

    .whitening-cause-grid {
        grid-template-columns: 1fr;
    }

    .whitening-cause-card {
        min-height: 0;
        padding: 30px 25px;
    }


    /* IMAGE TEXT */

    .whitening-image-text {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .whitening-image-text__image img {
        height: auto;
        aspect-ratio: 4 / 3;
    }


    /* TREATMENT */

    .whitening-treatment {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-bottom: 70px;
    }

    .whitening-treatment--reverse .whitening-treatment__image,
    .whitening-treatment--reverse .whitening-treatment__content {
        order: initial;
    }

    .whitening-treatment__image img {
        height: auto;
        aspect-ratio: 4 / 3;
    }

    .whitening-treatment__content h3 {
        font-size: 23px;
    }


    /* TABLE */

    .whitening-table {
        min-width: 720px;
    }

    .whitening-table th,
    .whitening-table td {
        padding: 16px;
        font-size: 12px;
    }


    /* RECOMMEND */

    .whitening-recommend {
        padding: 20px;
    }

    .whitening-recommend ul {
        grid-template-columns: 1fr;
    }


    /* FLOW */

    .whitening-flow__item {
        grid-template-columns: 65px minmax(0, 1fr);
        padding: 25px 0;
    }

    .whitening-flow__number {
        font-size: 27px;
    }


    /* MAINTENANCE */

    .whitening-maintenance-grid {
        grid-template-columns: 1fr;
    }


    /* LIMIT */

    .whitening-limit-box {
        padding: 25px 20px;
    }


    /* RISK */

    .whitening-risk {
        padding: 25px 20px;
    }


    /* FAQ */

    .whitening-faq summary {
        padding: 22px 45px 22px 40px;
        line-height: 1.7;
    }

    .whitening-faq summary::before {
        left: 5px;
    }

    .whitening-faq summary::after {
        right: 5px;
    }

    .whitening-faq details > div {
        padding: 0 15px 23px 40px;
    }


    /* CLOSING */

    .whitening-closing {
        padding: 50px 0;
    }


    /* RESERVATION */

    .whitening-reservation {
        padding: 50px 0;
    }

    .whitening-reservation__grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .whitening-reservation__frame iframe {
        width: 100%;
        height: 230px;
    }

}