@charset "utf-8";
/*==========================
header
==========================*/
.nav__item:first-of-type {
    color: var(--primary-skyBlue);
    position: relative;
}

.nav__item:first-of-type::before {
    content: '';
    display: inline-block;
    width: 24%;
    height: 1px;
    background-color: var(--primary-skyBlue);
    position: absolute;
    top: 50%;
    transform: translateY(-50%); 
}

/* header pc */
@media screen and (min-width:769px) {
    .nav__item:first-of-type a {
        text-decoration: underline var(--primary-skyBlue);
        text-underline-offset:5px;
    }

    .nav__item:first-of-type::before {
        display: none;
    }
}/* pc 769px */

/*==========================
explain
==========================*/
.explain__list {
    display: flex;
    justify-content: center;
    align-items: end;
    margin-top: 40px;
    padding: 0 8%;
}

.explain__item {
    width: 50px;
    text-align: center;
}

.explain__icon {
    width: 40px;
}

.explain__icon--transportationai {
    width: 50px;
}

.explain__icon--construction {
    width: 35px;
}

.explain__txt {
    text-align: center;
    font-size: 1.6rem;
    font-weight: 700;
    margin-top: 15px;
}

.line {
    width: 13%;
    height: 3px;
    background-color: var(--primary-blue);
    margin-bottom: 6px;
}

.explain__txtFirst::before {
    display: none;
}

.mainCaption__txt--explain {
    margin-top: 40px;
}

/* explain pc */
@media screen and (min-width:769px) {
    .explain__list {
        margin-top: 50px;
        padding: 0 8%;
    }

    .explain__item {
        width: 100px;
    }

    .explain__icon {
        width: 80px;
    }

    .explain__icon--transportationai {
        width: 100px;
    }

    .explain__icon--construction {
        width: 75px;
    }

    .explain__txt {
        font-size: 2rem;
        margin-top: 30px;
    }

    .line {
        width: 10%;
        height: 5px;
    }

    .mainCaption__txt--explain {
        margin-top: 50px;
    }
}/* pc 769px */

/*==========================
reasons
==========================*/
.section--reasons {
    padding: 40px 8% 90px;
    background-image: url(../images/bg_sp.svg);
    background-size: cover;
    background-repeat: no-repeat;
}

.reasons__list {
    margin-top: 50px;
}

.reasons__item {
    margin-top: 60px;
}

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

.reasons__topic {
    font-size: 1.8rem;
    font-weight: 700;
    text-align: center;
    margin-top: 30px;
}

.reasons__txt {
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1.5;
    margin-top: 30px;
}

/* reasons tablet */
@media screen and (min-width:769px) {
    .section--reasons {
        padding: 60px 0 150px;
        background-image: url(../images/bg_pc.svg);
    }

    .reasons__list {
        display: flex;
        justify-content: space-between;
        margin-top: 80px;
    }

    .reasons__item {
        margin-top: 0;
        width: 31%;
    }

    .reasons__topic {
        font-size: 2.4rem;
        margin-top: 50px;
    }

    .reasons__txt {
        font-size: 2rem;
        line-height: 1.7;
        padding: 0 5%;
        margin-top: 50px;
    }
}/* tablet 769px */

/* reasons pc */
@media screen and (min-width:1230px) {
    .section--reasons {
        padding: 60px 0 150px;
        background-image: url(../images/bg_pc.svg);
    }

    .reasons__list {
        display: flex;
        justify-content: space-between;
        margin-top: 80px;
    }

    .reasons__item {
        margin-top: 0;
        width: 31%;
    }

    .reasons__topic {
        font-size: 2.4rem;
        margin-top: 50px;
    }

    .reasons__txt {
        font-size: 2rem;
        line-height: 1.7;
        padding: 0 12%;
        margin-top: 50px;
    }
}/* pc 1230px */

/*==========================
worker
==========================*/
.section--worker {
    margin-top: 0;
    padding: 60px 0;
    background-image: url(../images/bg_ptn_sp.png);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.flex--worker div {
    padding: 40px 8%;
    background-color: rgba(255, 255, 255, 0.40);;
}

.topic--worker {
    color: var(--primary-blue);
    font-family: "Noto Serif JP";
    font-size: 2rem;
    font-weight: 700;
}

.worker__txt {
    color: var(--primary-blue);
    font-family: "Noto Serif JP";
    font-size: 1.6rem;
    font-weight: 500;
    line-height: 1.7;
    margin: 30px auto 0;
}

.worker__txt:last-of-type {
    margin-top: 20px;
}

/* worker tablet */
@media screen and (min-width:769px) {
    .worker__img {
        display: block;
        width: 50%;
        margin: 0 auto;
    }

    .flex--worker div {
        margin-top: 20px;
    }
}/* tablet 769px */

/* worker pc */
@media screen and (min-width:1230px) {
    .section--worker {
        padding: 80px 0;
        background-image: url(../images/bg_ptn_pc.png);
    }

    .flex--worker {
        display: flex;
        align-items: center;
        background-color: rgba(255, 255, 255, 0.40);;
    }
    
    .worker__img {
        width: 50%;
    }

    .flex--worker div {
        padding: 0 7.6%;
        background-color: transparent;
    }

    .topic--worker {
        font-size: 3.2rem;
    }

    .worker__txt {
        font-size: 2rem;
        margin: 50px auto 0;
    }

    .worker__txt:last-of-type {
        margin-top: 30px;
    }
}/* pc 1230px */

/*==========================
footer
==========================*/
.footerNav__item:first-of-type {
    color: var(--primary-skyBlue);
    position: relative;
}

.footerNav__item:first-of-type::before {
    content: '';
    display: block;
    width: 24%;
    height: 1px;
    background-color: var(--primary-skyBlue);
    position: absolute;
    top: 50%;
}

/* footer pc */
@media screen and (min-width:769px) {
    .footerNav__item:first-of-type a {
        text-decoration: underline var(--primary-skyBlue);
        text-underline-offset:5px;
    }

    .footerNav__item:first-of-type::before {
        display: none;
    }
}/* pc 769px */