@charset "UTF-8";

/* ====================
article__header
=====================*/
.article__header {
    position: relative;
    z-index: -200;
    background-color: var(--primary-gray);
}

.mainImg__pc {
    display: none;
}

.mainTopics {
    position: relative;
    overflow: hidden;
}

.mainTopics .wrapper {
    max-width: 87%;
    margin: 0 auto;
    padding: 80px 0;
}

.mainTopics__topics {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1;
    text-align: center;
}

.mainTopics__txt {
    margin-top: 50px;
    text-align: center;
}

.brpc {
    display: none;
}

/* About__background */
.mainTopics::after {
    display: block;
    content: '';
    z-index: -100;
    position: absolute;
    top: 55px;
    left: -445px;
    width: 1198px;
    height: 455px;
    background-image: url(../images/background_top_about.png);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
}

/* article__header pc */
@media screen and (min-width: 769px) {
    .mainImg__sp {
        display: none;
    }

    .mainImg__pc {
        display: block;
    }

    .mainTopics .wrapper {
        max-width: 1280px;
        padding: 80px 60px;
    }

    .mainTopics__topics {
        font-size: 4.8rem;
    }

    .brpc {
        display: block;
    }

    /* About__background */
    .mainTopics::after {
        top: -45px;
        left: -410px;
        width: 1890px;
        height: 718px;
    }
}

/* 769px pc */


/* ====================
section__common
=====================*/
.section .wrapper {
    max-width: 87%;
    margin: 0 auto;
    padding-top: 80px;
    padding-bottom: 80px;
}

.section__topic {
    display: flex;
    flex-flow: column;
    align-items: center;
    color: var(--primary-black);
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.5;
}

.section__topic span {
    margin-top: 10px;
    color: var(--primary-black);
    font-size: 1.2rem;
    font-weight: 400;
    line-height: 1;
}

/* .section__common pc */
@media screen and (min-width: 769px) {
    .section .wrapper {
        max-width: 1280px;
        padding: 80px 60px;
    }

    .section__topic {
        font-size: 4.8rem;
    }
}

/* 769px pc */

/* ====================
instructor
=====================*/
.instructor__contents--img {
    margin-top: 50px;
}

.instructor__topic p {
    color: var(--primary-black);
}

.instrucor_txt {
    margin-top: 40px;
}

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

.instructor__name--name {
    color: var(--primary-black);
    font-size: 2rem;
    font-weight: 500;
    line-height: 1;
}

.instructor__name--position {
    color: var(--primary-black);
    font-size: 2rem;
    font-weight: 400;
    line-height: 1;
}

.instructor__name--position::before {
    content: '/';
    margin-left: .5em;
    margin-right: .5em;
}

.instructor__topic--txt {
    margin: 40px auto 0;
}

.instructor__topic--txt dt {
    margin-top: 20px;
}

.instructor__topic--txt dt:first-of-type {
    margin-top: 0;
}

.instructor__topic--txt dt::before {
    display: inline-block;
    content: '';
    width: 12px;
    height: 12px;
    margin-right: .4em;
    background-color: var(--primary-black);
}

.instructor__topic--txt dd {
    margin-top: 10px;
    color: var(--primary-black);
    font-size: 1.6rem;
}

.instructor__topic--txt li {
    list-style-type: disc;
    list-style-position: inside;
    padding-left: 1em;
    text-indent: -1em;
}

/* instructor pc */
@media screen and (min-width: 769px) {
    .instructor__contents {
        display: flex;
        justify-content: space-between;
        margin-top: 50px;
    }

    .instructor__contents--img {
        display: flex;
        margin-top: 0;
        max-width: 43%;
        height: fit-content;
    }

    .instructor__topic {
        width: 52%;
    }

    .instructor__name {
        margin-top: 0;
        justify-content: flex-start;
    }
}

/* 769px pc */

/* ====================
features
=====================*/
.section--features {
    background-color: var(--primary-gray);
}

.features__contents div {
    margin-top: 50px;
}

.features__contents dd {
    margin-top: 20px;
}

.features__contents dd .features__topics {
    color: var(--primary-black);
    font-size: 1.8rem;
    font-weight: 500;
}

.features__contents dd .features__txt {
    color: var(--primary-black);
    margin-top: 20px;
}

/* features pc */
@media screen and (min-width: 769px) {
    .features__contents {
        margin-top: 50px;
    }

    .features__contents img {
        max-width: 400px;
    }

    .features__contents div {
        display: flex;
        align-items: center;
        gap: 60px;
        margin-top: 20px;
    }

    .features__contents div:first-of-type {
        align-items: stretch;
    }

    .features__contents div:nth-child(2) {
        flex-direction: row-reverse;
    }

    .features__contents dd {
        margin-top: 0;
    }

    .features__contents--first dd {
        margin-top: 40px;
    }

    .features__contents--second dd {
        padding-left: 50px;
    }

    .features__contents dd .features__topics {
        font-size: 2.4rem;
    }
}

/* 769px pc */

/* ====================
review
=====================*/
.section--review {
    position: relative;
    overflow: hidden;
}

.review__contents {
    margin-top: 100px;
}

.review__list div {
    position: relative;
    width: 100%;
    height: 100%;
    margin-top: 80px;
    padding: 80px 40px 40px;
    border-radius: 5px;
    background: var(--primary-gray);
}

.review__list div:first-of-type {
    margin-top: 0;
}

.review__list p {
    color: var(--primary-black);
    line-height: 1.5;
}

.review__list div::before {
    display: block;
    content: '';
    position: absolute;
    top: -45px;
    left: 50%;
    width: 90px;
    height: 90px;
    background-image: url(../images/review_icon.png);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    transform: translateX(-50%);
}

.btn__review {
    display: flex;
    position: relative;
    justify-content: center;
    align-items: center;
    width: 226px;
    height: 35px;
    margin: 0 auto;
    margin-top: 50px;
    padding: 5px 8px;
    border-radius: 2px;
    background-color: var(--primary-gray);
    color: var(--primary-black);
    line-height: 1;
    transition: 0.4s;
}

/* Review__background */
.section--review::before {
    display: block;
    content: '';
    z-index: -100;
    position: absolute;
    top: 35px;
    left: -220px;
    width: 804px;
    height: 783px;
    background-image: url(../images/background_review_01.png);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
}

.section--review::after {
    display: block;
    content: '';
    z-index: -100;
    position: absolute;
    bottom: -100px;
    right: -220px;
    width: 804px;
    height: 783px;
    background-image: url(../images/background_review_02.png);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
}

/* review pc */
@media screen and (min-width: 769px) {
    .review__list {
        display: flex;
        gap: 36px;
        min-height: 500px;
    }

    .review__list div {
        height: auto;
        margin-top: 0;
    }

    .review__list div::before {
        width: 100px;
        height: 100px;
    }

    /* Review__background */
    .section--review::before {
        position: absolute;
        top: -170px;
        left: -380px;
        width: 1800px;
        height: 1750px;
    }

    .section--review::after {
        display: none;
    }

    .btn__review:hover {
        background-color: var(--primary-darkGray);
        color: var(--primary-white);
    }
}

/* 769px pc */