@charset "UTF-8";
/* ========================
common
========================*/
html {
    font-size: 62.5%;
}
body {
    margin: 0;

    font-family: 
    "Noto Sans JP",
    Arial, Helvetica, sans-serif;
    font-style: normal;
    line-height: 1.5;
}
img {
    max-width: 100%;
    height: auto;
}

.section__topic {
    margin: 0;
}
.section__title {
    font-weight: 700;
    font-size: 2.4rem;
    line-height: 1.3;
    margin-top: 10px;
    margin-bottom: 30px;
}

.section__title-en {
    display: flex;
    align-items: center;
    gap: 10px;

    margin: 0 0 8px;
    color: #10288f;

    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1;
}
.section__title-en::after {
    content: "";
    display: block;
    width: 60px;
    height: 1px;
    background-color: #10288f;
}

* {
    box-sizing: border-box;
}

@media screen and (min-width: 769px) {

    .section__title {
        font-size: 3.6rem;
        line-height: 1.5;
        margin-top: 16px;
        margin-bottom: 50px;
    }
    
    .section__title-en {
        gap: 30px;
    
        font-size: 2.4rem;
    }
    .section__title-en::after {
        content: "";
        width: 300px;
        height: 2px;
    }
}
/* pc 769px */

/* ========================
header
========================*/
.header {
    padding: 24px 5%;
    color: #ffffff;

    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;

    display: flex;
    align-items: center;
    justify-content: space-between;

    width: 100%;
}
.header__topic a {
    color: #ffffff;
    text-decoration: none;

    display: flex;
    align-items: center;
    gap: 10px;

}
.header__topic,
.nav__topic {
    font-size: 1.6rem;
    font-weight: 700;
    color: white;
    align-items: center;

    margin: 0;
}
.header__topic img {
    width: 38px;
    height: auto;
}
.nav__topicBox {
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav__logo {
    width: 38px;
    height: 38px;
}

.header__btn,
.nav__btn {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    cursor: pointer;
}

/* .nav初期表示 */
.nav {
    background: rgba(28,50,84, 0.95);
    width: 100%;
    height: 100vh;
    padding: 23px 5%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    transform: translateX(-100%);
    transition: transform 0.5s;
}

.nav__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav__list {
    margin: 70px 0 0;
    padding: 0;

    list-style: none;
    text-align: center;
}
.nav__item a {
    display: block;
    padding: 15px;

    color: #fff;
    font-size: 2rem;
    font-weight: 500;
    text-decoration: none;
}
.nav__item {
    line-height: 1;
    margin-top: 20px;
}

.nav.active {
    transform: translateX(0);
}

/* 固定ヘッダー */
.header.is-scrolled {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 90;

    width: 100%;
    padding-top: 15px;
    padding-bottom: 15px;

    background-color: rgba(28,50,84, 0.95);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);

    animation: headerSlideDown 0.4s ease;
}

@keyframes headerSlideDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media screen and (min-width: 769px) {
    .header {
        padding: 40px 5%;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .header__topic a {
        gap: 30px;
    
    }
    .header__topic {
        font-size: 2.4rem;
        line-height: 1;
    }
    .header__topic img {
        width: 73px;
    }

    .nav {
        background: transparent;
        width: auto;
        height: auto;
        padding: 0;
        position: static;
        transform: translate(0);
    }

    .nav__list {
        display: flex;
        margin-top: 0;
        gap: 30px;
    }

    .nav__item {
        margin-top: 0;
        font-weight: 200;
    }

    .nav__header {
        display: none;
    }

    .header__btn {
        display: none;
    }
}
/* pc 769px */

/* ========================
main
========================*/
/* article header */
.mv__pc {
    display: none;
}

.article__header {
    width: 100vw;
}

.mv {
    position: relative;
}
.mv__pc {
    width: 100vw;
}

.mv__txt {
    position: absolute;
    top: 160px;
    left: 5%;

    font-size: 2.4rem;
    font-weight: 700;
    line-height: 2;
    color: white;
    letter-spacing: 0.2em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.mv__txt-en {
    position: absolute;
    bottom: 25px;
    left: 5%;

    font-size: 1.6rem;
    font-weight: 300;
    line-height: 1.5;
    color: white;
    letter-spacing: 0.1em;
}

@media screen and (min-width: 769px) {
    .mv__pc {
        display: flex;
    }
    .mv__sp {
        display: none;
    }

    .mv__txt {
        position: absolute;
        top: 160px;
        left: 5%;
        font-weight: 400;
        font-size: 5rem;
        line-height: 1.5;
        letter-spacing: 0.1em;
        text-shadow: 3px 3px 5px rgba(0, 0, 0, 0.4);
    }
}
/* pc 769px */

/* ========================
business
======================== */
.section--business {
    padding: 40px 5% 50px;
    background-color: #F1FAFF;
}

.business__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px 35px;

    margin: 0;
    padding: 0;

    list-style: none;
}

.business_item {
    overflow: hidden;
    background-color: #ffffff;
}
.business__img {
    margin: 0;
}

.business__img img {
    display: block;

    width: 100%;
    aspect-ratio: 2 / 1;
    object-fit: cover;
}

.business__txt {
    display: flex;
    align-items: center;
    justify-content: center;

    min-height: 60px;
    margin: 0;
    padding: 0;

    color: #000000;
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1;
    text-align: center;
}

@media screen and (min-width: 769px) {
    .section--business {
        padding: 100px 5%;
    }
    
    .business__list {
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 55px 40px;

        width: 100%;
        margin: 0 auto;
    }

    
    .business__img img {
        aspect-ratio: 2 / 1;
    }
    
    .business__txt {
        min-height: 75px;
        padding: 10px;

        font-size: 2rem;
    }
}
/* pc 769px */

/* ========================
SDGs
======================== */

.section--sdgs {
    padding: 0;

    color: #ffffff;
    background-image:
        linear-gradient(
            rgba(0, 62, 133, 0.65),
            rgba(0, 43, 95, 0.5)
        ),
        url("../img/sdgs_background-sp.webp");

    background-repeat: no-repeat;
    background-size: cover;
    background-position: 75% top;
}

.section__topic--sdgs {
    padding: 40px 5% 30px;
    margin: 0;
}

.section__title-en--sdgs {
    margin: 0 0 10px;

    color: #ffffff;
    letter-spacing: 0.02em;
}

.section__title-en--sdgs::after {
 
    background-color: #ffffff;
}

.section__title--sdgs {
    margin: 0 0 28px;

    color: #ffffff;
    font-size:  5rem;
    font-weight: 700;
    line-height: 1.2;
}

.sdgs__topic--txt {
    margin: 0;

    color: #ffffff;
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1.45;
}


.sdgs__line {
    position: relative;
    padding: 50px 5% 35px;
}

.sdgs__line::before {
    content: "";

    position: absolute;
    top: 0;
    left: 5%;
    right: 5%;

    height: 1px;
    background-color: rgba(255, 255, 255, 0.9);
}

.sdgs__subtitle {
    margin: 0 0 24px;
    padding-left: 7px;

    color: #ffffff;
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.4;
}

.sdgs__list {
    display: flex;
    flex-direction: column;
    gap: 22px;

    margin: 0;
    padding: 0;

    list-style: none;
}

.sdgs__item {
    padding: 20px 18px;

    color: #ffffff;
    background-color: rgba(4, 49, 103, 0.82);
}

.sdgs__item-title {
    position: relative;

    margin: 0 0 18px;
    padding-left: 18px;

    color: #ffffff;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.4;
}

.sdgs__item-title::before {
    content: "";

    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;

    width: 3px;
    background-color: #67C9FF;
}

.sdgs__discription {
    margin: 0 0 15px;

    color: #ffffff;
    font-size: 1.6rem;
    font-weight: 500;
    line-height: 1.5;
}

.sdgs__detail {
    margin: 0 0 12px;

    color: #ffffff;
    font-size: 1.6rem;
    font-weight: 600;
}

.sdgs__txt {
    margin: 0 0 18px;

    color: #ffffff;
    font-size: 1.6rem;
    font-weight: 500;
    line-height: 1.5;
}

.sdgs__iconBox {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.sdgs__icon {
    display: block;

    width: 36px;
    height: 36px;

    object-fit: cover;
}

/* SDGsとは */

.sdgs__aboutBox {
    padding: 28px 20px 40px;

    color: #111111;
    background-color: rgba(255, 255, 255, 0.85);
}

.sdgs__allicons {
    display: block;

    width: 100%;
    max-width: 270px;
    height: auto;
    margin: 0 auto 30px;
}

.sdgs__about {
    margin: 0;
}

.sdgs__about--title {
    margin: 0 0 20px;

    color: #f07800;
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.35;
}

.sdgs__about--txt {
    margin: 0;

    font-size: 1.6rem;
    font-weight: 500;
    line-height: 1.5;
}

@media screen and (min-width: 769px) {
    .section--sdgs {
        padding: 0 0 100px 0;
    
        background-image:
            url("../img/sdgs_background.webp");
    
    }

    .section__topic--sdgs {
        padding: 100px 5% 50px;
    }

    .section__title--sdgs {
        margin: 20px 0 50px;
    
        font-size:  10rem;
        font-weight: 500;
    }

    .sdgs__topic--txt {
        font-size: 2.4rem;
    }


    .sdgs__line {
        padding: 80px 5%;
    }

    .sdgs__subtitle {
        margin-bottom: 50px;
        padding-left: 0;

        font-size: 3.6rem;
    }

    /* 4つのカードを横並び */
    .sdgs__list {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        align-items: stretch;
        gap: 25px;

        width: 100%;
        margin: 0 auto;
    }

    .sdgs__item {
        display: flex;
        flex-direction: column;

        min-width: 0;
        padding: 25px 22px;
    }

    .sdgs__item-title {
        margin-bottom: 20px;
        align-items: center;
        font-size: 2rem;

        display: flex;

        min-height: 45px;
        margin: 0 0 18px;
        padding-left: 18px;

        font-weight: 700;
        line-height: 1.4;
    }

    .sdgs__discription {
        font-size: 1.4rem;
        line-height: 1.55;
    }

    .sdgs__detail {
        margin-top: 5px;
        font-size: 1.4rem;
    }

    .sdgs__txt {
        font-size: 1.4rem;
        line-height: 1.5;
    }

    /* アイコンをカード下部に揃える */
    .sdgs__iconBox {
        margin-top: auto;
    }

    .sdgs__icon {
        width: 42px;
        height: 42px;
    }

    /* SDGsとは */
    .sdgs__aboutBox {
        display: grid;
        grid-template-columns: minmax(250px, 35%) 1fr;
        align-items: center;
        gap: 60px;

        width: 90%;
        margin: 0 auto;
        padding: 45px 60px;

        background-color: rgba(255, 255, 255, 0.82);
    }

    .sdgs__allicons {
        width: 100%;
        max-width: 350px;
        margin: 0 auto;
    }

    .sdgs__about--title {
        margin-bottom: 20px;
        font-size: 2.2rem;
    }

    .sdgs__about--txt {
        font-size: 1.4rem;
        line-height: 1.65;
    }
}

/* pc 769px */

/* ========================
company
======================== */

.section--company {
    padding: 40px 5% 40px;

    background-color: #ffffff;
}

.section__topic {
    margin-bottom: 35px;
}

.section--company .section__title-en {
    margin-bottom: 14px;
}

.section--company .section__title {
    margin: 0;
}

.company__about {
    border-top: 1px solid #888888;
}

.company__list {
    padding: 15px 5%;

    border-bottom: 1px solid #888888;
}

.company__title {
    margin: 0 0 8px;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.4;
}

.company__txt {
    margin: 0;

    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1.45;
}

.company__txtBox {
    margin: 0;
    padding-left: 20px;

    list-style: disc;
}

.company__txtBox .company__txt {
    padding-left: 0;
}

.company__imgBox {
    margin-top: 20px;
}

.company__img--pc {
    display: none;
}

.company__img--sp {
    height: 100%;
}

.company__deco {
    position: relative;
}

.deco__txt {
    font-size: 1.3rem;
    line-height: 1.2;
    margin: 0;
    position: absolute;
    bottom: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.8);
    box-shadow: 0 0 15px 10px rgba(255, 255, 255, 0.8);
    border-right: 3px solid #67C9FF;
}

@media screen and (min-width: 769px) {
    .section--company {
        position: relative;
        display: flex;
        align-items: stretch;
        overflow: hidden;

        padding: 100px 5%;
    }

    .company__outer {
        position: relative;
        z-index: 2;

        width: 65%;
        flex-shrink: 0;
        background-color: rgba(255, 255, 255, 0.8);
    }

    .company__about {
        width: 100%;
    }

    .company__imgBox {
        position: relative;
        align-self: stretch;
        z-index: 1;
    
        width: 40%;
        flex-shrink: 0;
    
        margin-top: 0;
        margin-left: -5%;
    
        overflow: hidden;
    }
    
    .company__img--pc {
        display: block;
        width: 100%;
        height: 100%;
        object-fit: cover;
        object-position: bottom;
    }

    .company__img {
        position: absolute;
        inset: 0;
    }

    .company__list {
        display: grid;
        grid-template-columns: 190px minmax(0, 1fr);
        align-items: start;
        gap: 35px;

        padding: 24px 5%;
    }

    .company__title {
        margin: 0;

        font-size: 1.6rem;
        line-height: 1.5;
        white-space: nowrap;
    }

    .company__txtBox {
        display: flex;
        flex-wrap: wrap;
        gap: 8px 25px;

        margin: 0;
        padding: 0;

        list-style: none;
    }

    .company__txtBox .company__txt::before {
        content: "・";
    }

    .company__txtBox .company__txt {
        display: flex;
        align-items: center;
        white-space: nowrap;
    }

    .company__deco {
        position: absolute;
        inset: 0;
        z-index: 2;

        height: auto;
        pointer-events: none;
    }

    .deco__txt {
        position: absolute;
        right: 10px;
        bottom: 10px;

        margin: 0;
        padding: 0;

        font-size: 2rem;
        line-height: 1.4;

        box-shadow: 0 0 20px 14px rgba(255, 255, 255, 0.82);
        border-right: none;
    }
    
    .company__deco::after {
        content: "";
    
        position: absolute;
        top: 60%;
        right: 0;
        bottom: 70px;
    
        width: 2px;
        background-color: #67c9ff;
    }

    .company__img--sp {
        display: none;
    }
}
/* pc 769px */

/* ========================
contact
======================== */

.section--contact {
    padding: 40px 5% 40px;

    color: #ffffff;
    background-image:
        url("../img/contact_background-sp.webp");

    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}


.section--contact .section__topic {
    margin-bottom: 45px;
}

.section__title-en--contact {
    color: #ffffff;
    font-size: 1.3rem;
}

.section__title-en--contact::after {
    background-color: #ffffff;
}

.section__title--contact {
    margin: 0;

    color: #ffffff;
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.3;
}

.contact__form {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-button {
    display: flex;
    align-items: center;
    justify-content: space-between;

    width: 80%;
    min-height: 60px;
    padding: 0 20px;

    color: #111111;
    background-color: #ffffff;
    border-radius: 12px;

    text-decoration: none;

    transition:
        color 0.3s ease,
        background-color 0.3s ease,
        transform 0.3s ease;

    margin: 0 auto;
}

.contact-button__text {
    display: flex;
    align-items: center;
    gap: 10px;

    font-size: 1.6rem;
    font-weight: 500;
}

.contact-button__text img {
    display: block;
    width: 18px;
    height: 18px;
    object-fit: contain;
}

.contact-button__arrow {
    display: block;
    flex-shrink: 0;
}

.contact-button__arrow img {
    display: block;
    width: 15px;
    height: auto;
}

.contact__txt {
    margin: 0;

    color: #ffffff;
    font-size: 1.3rem;
    font-weight: 400;
    line-height: 1.5;
}


@media screen and (min-width: 769px) {
    .section--contact {
        padding: 100px 5%;
    
        background-image:
            url("../img/contact_background.webp");
    }

    .section__title--contact {
        font-size: 3.6rem;
        line-height: 1.5;
        margin-top: 16px;
        margin-bottom: 50px;
    }
    
    .section__title-en--contact {
        gap: 30px;
    
        font-size: 2.4rem;
    }
    .section__title-en--contact::after {
        content: "";
        width: 300px;
        height: 2px;
    }

    .contact__form {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 200px;
    }

    .contact-button__text img {
        width: 22px;
        height: auto;
    }

    .contact-button {
        max-width: 400px;
        margin: 0 5%;
        padding: 20px 45px;
    }

    .contact-button__text {
        font-size: 2rem;
    }

    .contact-button__arrow img {
        width: 20px;
    }
    
    .contact__txt {
        font-size: 2rem;
    }
}
/* pc 769px */


/* ========================
footer
======================== */

.footer {
    padding: 35px 5%;
    background-color: #ffffff;
}

/* ロゴと会社名 */
.footer__group {
    display: flex;
    justify-content: center;
    width: 100%;
    margin-bottom: 25px;
}

.footer__logo {
    display: block;
    width: 55px;
    height: auto;
}

.footer__topic {
    display: none;
}

/* メニュー */
.footer__list {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px 18px;

    margin: 0;
    padding: 0;
    list-style: none;
}

.footer__menu {
    font-size: 1.3rem;
    font-weight: 500;
    line-height: 1;
    white-space: nowrap;
}

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

.copy small {
    font-style: normal;
}

@media screen and (min-width: 769px) {
    .footer {
        padding: 70px 5% 50px;
    }

    .footer__logo {
        display: block;
        width: auto;
        height: 70px;
    }

    .footer__topic {
        margin: 0;
    
        font-size: 2.4rem;
        line-height: 70px;
        white-space: normal;
    }

    .footerBox {
        display: flex;
        justify-content: space-between;
    }

    .footer__topic {
        display: block;
    }

    .footer__group {
        width: auto;
        margin-bottom: 0;
        gap: 30px;
    }

    .footer__list {
        flex-wrap: nowrap;
        gap: 50px;
    
        margin: 0;
        padding: 0;
        list-style: none;
    }
    
    .footer__menu {
        font-size: 2rem;
        font-weight: 500;
        line-height: 1;
        white-space: nowrap;
    }
}
/* pc 769px */