* {
    box-sizing: border-box;
}


html {
    scroll-behavior: smooth;
}


body {
    margin: 0;
    color: #111;
    background: #fff;

    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Helvetica Neue",
        "Noto Sans JP",
        sans-serif;

    line-height: 1.8;
}


a {
    color: inherit;
    text-decoration: none;
}


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


.container {
    width: min(1200px, 90%);
    margin: 0 auto;
}


/* =========================
   HEADER
========================= */

.header {
    position: relative;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid #eee;
    z-index: 100;
}


.header-inner {
    height: 90px;

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


.logo {
    font-size: 25px;
    font-weight: 700;
    letter-spacing: .08em;
}


.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}


.nav a {
    font-size: 13px;
    letter-spacing: .08em;
    transition: .3s;
}


.nav a:hover {
    opacity: .5;
}


.nav-contact {
    padding: 10px 20px;
    background: #111;
    color: #fff;
}


.menu-button {
    display: none;

    border: none;
    background: none;

    font-size: 25px;
}


/* =========================
   MOBILE MENU
========================= */

.mobile-menu {
    display: none;

    position: absolute;

    width: 100%;

    background: #fff;

    border-bottom: 1px solid #ddd;

    z-index: 99;
}


.mobile-menu.active {
    display: block;
}


.mobile-menu a {
    display: block;

    padding: 18px 5%;

    border-bottom: 1px solid #eee;
}


/* =========================
   HERO
========================= */

.hero {
    min-height: 720px;

    display: flex;
    align-items: center;

    background:
        linear-gradient(
            90deg,
            #f5f5f5 0%,
            #fff 100%
        );
}


.hero-content {
    max-width: 800px;
}


.hero-label {
    font-size: 14px;

    letter-spacing: .35em;

    margin-bottom: 20px;
}


.hero h1 {
    margin: 0;

    font-size: clamp(
        50px,
        8vw,
        100px
    );

    line-height: 1.2;

    letter-spacing: -.03em;
}


.hero-description {
    margin-top: 35px;

    font-size: 17px;

    color: #555;
}


/* =========================
   SECTION
========================= */

.section {
    padding: 120px 0;
}


.section-gray {
    background: #f6f6f6;
}


.section-heading {
    margin-bottom: 55px;
}


.section-en {
    margin: 0 0 10px;

    font-size: 13px;

    letter-spacing: .25em;

    font-weight: 600;
}


.section-heading h2,
.announcement-preview h2,
.contact-section h2 {
    margin: 0;

    font-size: clamp(
        32px,
        5vw,
        52px
    );

    line-height: 1.3;
}


.large-text {
    margin: 0;

    font-size: 30px;

    font-weight: 600;

    line-height: 1.6;
}


/* =========================
   ABOUT
========================= */

.about-grid {
    display: grid;

    grid-template-columns:
        1fr 1fr;

    gap: 100px;
}


.about-grid p {
    color: #555;
}


.text-link {
    display: inline-block;

    margin-top: 20px;

    font-weight: 600;

    border-bottom: 1px solid #111;

    padding-bottom: 4px;
}


/* =========================
   BUSINESS
========================= */

.business-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 25px;
}


.business-card {
    padding: 45px;

    min-height: 300px;

    background: #fff;

    border: 1px solid #eee;

    transition: .3s;
}


.business-card:hover {
    transform: translateY(-5px);

    box-shadow:
        0 15px 40px rgba(
            0,
            0,
            0,
            .08
        );
}


.business-number {
    font-size: 13px;

    letter-spacing: .2em;

    color: #888;
}


.business-card h3 {
    margin-top: 45px;

    font-size: 25px;
}


.business-card p {
    color: #666;
}


/* =========================
   BUTTON
========================= */

.button {
    display: inline-block;

    margin-top: 30px;

    padding:
        14px
        32px;

    border: 1px solid #111;

    background: #111;

    color: #fff;

    transition: .3s;
}


.button:hover {
    background: #fff;

    color: #111;
}


.button-white {
    background: #fff;

    color: #111;

    border-color: #fff;
}


.button-white:hover {
    background: transparent;

    color: #fff;
}


.center-button {
    text-align: center;
}


.right-button {
    text-align: right;
}


/* =========================
   NEWS
========================= */

.news-list {
    border-top: 1px solid #ddd;
}


.news-item {
    display: grid;

    grid-template-columns:
        120px
        120px
        1fr;

    align-items: center;

    padding: 25px 0;

    border-bottom: 1px solid #ddd;

    transition: .3s;
}


.news-item:hover {
    opacity: .5;
}


.news-item time {
    font-size: 14px;
}


.news-category {
    display: inline-block;

    width: fit-content;

    padding:
        3px
        10px;

    font-size: 11px;

    border: 1px solid #ddd;
}


.news-item p {
    margin: 0;
}


/* =========================
   COMPANY
========================= */

.company-table {
    width: 100%;

    border-collapse: collapse;
}


.company-table th,
.company-table td {
    padding: 25px;

    border-bottom: 1px solid #ddd;

    text-align: left;
}


.company-table th {
    width: 25%;

    background: #fafafa;

    font-weight: 600;
}


/* =========================
   ANNOUNCEMENT
========================= */

.announcement-preview {
    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 50px;
}


.announcement-preview p {
    color: #666;
}


/* =========================
   CONTACT
========================= */

.contact-section {
    padding: 130px 0;

    background: #111;

    color: #fff;

    text-align: center;
}


.contact-section .section-en {
    color: #aaa;
}


.contact-section p {
    color: #bbb;
}


/* =========================
   FOOTER
========================= */

.footer {
    padding: 70px 0 25px;

    background: #111;

    color: #fff;

    border-top: 1px solid #333;
}


.footer-top {
    display: flex;

    justify-content: space-between;

    gap: 50px;
}


.footer-logo {
    font-size: 25px;

    font-weight: 700;

    letter-spacing: .08em;
}


.footer-links {
    display: grid;

    grid-template-columns:
        repeat(2, auto);

    gap:
        10px
        40px;
}


.footer-links a {
    color: #bbb;

    font-size: 14px;
}


.footer-bottom {
    margin-top: 70px;

    padding-top: 20px;

    border-top: 1px solid #333;
}


.footer-bottom p {
    margin: 0;

    color: #777;

    font-size: 12px;
}


/* =========================
   MOBILE
========================= */

@media (max-width: 768px) {


    .header-inner {
        height: 70px;
    }


    .nav {
        display: none;
    }


    .menu-button {
        display: block;
    }


    .hero {
        min-height: 650px;
    }


    .hero h1 {
        font-size: 52px;
    }


    .section {
        padding: 80px 0;
    }


    .about-grid {
        grid-template-columns: 1fr;

        gap: 30px;
    }


    .business-grid {
        grid-template-columns: 1fr;
    }


    .news-item {
        grid-template-columns:
            1fr;

        gap: 8px;
    }


    .news-category {
        margin: 5px 0;
    }


    .company-table th,
    .company-table td {
        display: block;

        width: 100%;
    }


    .company-table th {
        padding-bottom: 8px;
    }


    .company-table td {
        padding-top: 8px;
    }


    .announcement-preview {
        flex-direction: column;

        align-items: flex-start;
    }


    .footer-top {
        flex-direction: column;
    }


    .footer-links {
        grid-template-columns:
            1fr;
    }

}

/* =========================
   PAGE HERO
========================= */

.page-hero {
    padding: 130px 0;

    background: #f6f6f6;
}

.page-hero h1 {
    margin: 0;

    font-size:
        clamp(
            42px,
            6vw,
            72px
        );

    line-height: 1.2;
}

.page-hero p:last-child {
    margin-top: 20px;

    color: #666;
}


/* =========================
   MESSAGE
========================= */

.message {
    max-width: 850px;
}

.message-main h3 {
    margin-bottom: 40px;

    font-size: 36px;

    line-height: 1.5;
}

.message-main p {
    margin-bottom: 25px;

    color: #555;
}

.message-name {
    margin-top: 50px;

    text-align: right;

    color: #111 !important;

    font-weight: 600;
}


/* =========================
   PHILOSOPHY
========================= */

.philosophy-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 25px;
}

.philosophy-card {
    padding: 45px;

    background: #fff;
}

.philosophy-card span {
    font-size: 12px;

    letter-spacing: .2em;

    color: #888;
}

.philosophy-card h3 {
    margin-top: 35px;

    font-size: 24px;
}

.philosophy-card p {
    color: #666;
}


/* =========================
   HISTORY
========================= */

.history {
    max-width: 850px;

    border-top: 1px solid #ddd;
}

.history-item {
    display: grid;

    grid-template-columns:
        150px
        1fr;

    padding: 25px 0;

    border-bottom: 1px solid #ddd;
}

.history-item time {
    font-weight: 600;
}

.history-item p {
    margin: 0;
}


/* =========================
   ACCESS
========================= */

.access {
    padding: 40px;

    background: #f6f6f6;
}

.access p {
    margin: 5px 0;
}


/* =========================
   MOBILE COMPANY
========================= */

@media (max-width: 768px) {

    .page-hero {
        padding: 90px 0;
    }

    .message-main h3 {
        font-size: 28px;
    }

    .philosophy-grid {
        grid-template-columns: 1fr;
    }

    .history-item {
        grid-template-columns: 1fr;

        gap: 5px;
    }

}

/* =========================
   BUSINESS DETAIL
========================= */

.business-detail {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 60px;
}

.business-detail article {
    padding-top: 25px;

    border-top: 1px solid #111;
}

.business-detail article > span {
    font-size: 13px;

    letter-spacing: .2em;

    color: #888;
}

.business-detail h3 {
    margin-top: 30px;

    font-size: 28px;
}

.business-detail p {
    color: #555;
}


/* =========================
   APPROACH
========================= */

.approach-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 25px;
}

.approach-card {
    padding: 40px;

    background: #fff;
}

.approach-card h3 {
    font-size: 21px;
}

.approach-card p {
    color: #666;
}


@media (max-width: 768px) {

    .business-detail {
        grid-template-columns: 1fr;

        gap: 50px;
    }

    .approach-grid {
        grid-template-columns: 1fr;
    }

}

/* =========================
   ANNOUNCEMENT
========================= */

.announcement-notice {
    margin-bottom: 50px;

    padding: 30px;

    background: #f6f6f6;

    border-left: 3px solid #111;
}

.announcement-notice p {
    margin: 5px 0;

    color: #555;
}

/* =========================
   CONTACT PAGE
========================= */

.contact-page {
    max-width: 1000px;
}

.contact-description {
    margin-bottom: 50px;

    color: #555;
}

.contact-form-area {
    padding: 60px;

    background: #f6f6f6;

    text-align: center;
}

.contact-form-area > p:first-child {
    margin: 0;

    font-size: 24px;

    font-weight: 600;
}

.form-note {
    color: #666;
}

.contact-info {
    margin-top: 70px;

    padding-top: 40px;

    border-top: 1px solid #ddd;
}

.contact-info h3 {
    font-size: 20px;
}

.contact-info p {
    font-size: 18px;
}


@media (max-width: 768px) {

    .contact-form-area {
        padding: 40px 20px;
    }

}

/* =========================
   LEGAL PAGE
========================= */

.legal-page {
    max-width: 900px;
}

.legal-page h2 {
    margin-top: 70px;

    margin-bottom: 25px;

    padding-bottom: 12px;

    border-bottom: 1px solid #ddd;

    font-size: 25px;
}

.legal-page h2:first-child {
    margin-top: 0;
}

.legal-page p {
    color: #555;
}

.legal-page li {
    margin-bottom: 10px;
}

.policy-date {
    margin-top: 80px;

    padding-top: 30px;

    border-top: 1px solid #ddd;

    text-align: right;

    font-size: 13px;
}