@charset "utf-8";

/* mv */
.mv {
    background-color: var(--color-black);
    position: relative;
    text-align: center;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}
.mv::after {
    content: '';
    display: block;
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 32px;
    border-radius: 16px 16px 0 0;
    background-color: var(--color-white);
    z-index: 3;
}
.mv::before {
    content: '';
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.75;
    background: #323232;
    z-index: 1;
}
.mv_video {
    position: absolute;
    top: 50%;
    left: 50%;
    translate: -50% -50%;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.mv_inner {
    position: relative;
    z-index: 2;
    color: var(--color-white);
}
.mv_ttl_word {
    display: inline-block;
}
.mv_ttl_en {
    margin-inline: auto;
}

@media (min-width: 769px) {
    .mv {
        height: 712px;
        padding-top: 44px;
    }
    .mv::before {
        background: radial-gradient(circle, #323232 0%, #000 100%);
    }
    .mv_ttl {
        font-size: 56px;
        line-height: calc(80 / 56);
    }
    .mv_ttl_en {
        margin-top: 26px;
    }
}
@media (max-width: 768px) {
    .mv {
        height: 578px;
        padding-top: 30px;
    }
    .mv::before {
        background: radial-gradient(circle, #323232 50%, #000 150%);
    }
    .mv_video {
        min-width: 390px;
    }
    .mv_ttl {
        font-size: 42px;
        line-height: calc(60 / 42);
    }
    .mv_ttl_en {
        margin-top: 18px;
        max-width: 315px;
    }
}
.mv_video {
    opacity: 0;
}
.animation_loaded .mv_video {
    opacity: 1;
    transition: opacity 0.5s;
}
.mv_loader {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 42px;
    width: 100%;
    z-index: 2;
}
.mv_loader_bar {
    height: 100%;
    width: 0%;
    background-color: var(--color-blue);
    transition: width 0.3s ease;
}

/* message */
.message {
    text-align: center;
}
.message_txt {
    font-size: 16px;
    letter-spacing: 0.025em;
}
.message_btn {
    margin-top: 54px;
}
@media (min-width: 769px) {
    .message {
        padding-top: 82px;
        padding-bottom: 120px;
    }
    .message_txt {
        line-height: calc(32 / 16);
    }
}
@media (max-width: 768px) {
    .message {
        padding-top: 47px;
        padding-bottom: 80px;
    }
    .message_txt {
        line-height: calc(62 / 32);
    }
}
@media (max-width: 390px) {
    .message_txt {
        font-size: 15px;
    }
}

.section_ttl_word {
    display: inline-block;
}
@media (min-width: 769px) {
    .section_ttl {
        font-size: 38px;
        line-height: calc(52 / 38);
    }
}
@media (max-width: 768px) {
    .section_ttl {
        font-size: 24px;
        line-height: calc(36 / 24);
        letter-spacing: 0.025em;
    }
}

/* business_machine */
.business_slider {
    overflow: visible;
}
.business_slider .swiper-slide {
    width: max-content;
}

.business_machine {
    background-color: #f5f5f5;
    overflow: hidden;
}
.business_category_list {
    display: flex;
    flex-wrap: wrap;
    margin-top: 26px;
}
.business_category_link {
    border: 1px solid var(--color-dark-gray);
    display: block;
    color: var(--color-dark-gray);
    padding: 2px 10px;
    font-size: 12px;
    border-radius: 12px;
}
.business_slider_link {
    text-decoration: none;
}
.business_slider_img_wrap {
    border-radius: 16px;
    overflow: hidden;
}
.business_slider_txt {
    text-align: center;
    margin-top: 11px;
}
.btn_machine_wrap,
.btn_tool_wrap {
    display: flex;
    justify-content: space-between;
    position: relative;
}
.slider_button_wrap {
    display: flex;
    gap: 8px;
}
.slider_button_next,
.slider_button_prev {
    border: 1px solid var(--color-dark-gray);
    border-radius: 50%;
    position: relative;
}
.slider_button_next::after,
.slider_button_prev::after {
    content: '';
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    border-top: 2px solid var(--color-dark-gray);
    border-right: 2px solid var(--color-dark-gray);
    translate: 0% -50%;
}
.slider_button_next::after {
    margin-left: -6px;
    rotate: 45deg;
}
.slider_button_prev::after {
    margin-left: -3px;
    rotate: -135deg;
}
.business_slider .swiper-button-disabled {
    opacity: 0.5;
    pointer-events: none;
}
.business_slider .swiper-pagination {
    height: 2px;
    margin: auto;
    background-color: var(--color-white);
    position: absolute;
}
.business_slider .swiper-pagination-progressbar .swiper-pagination-progressbar-fill {
    background-color: var(--color-dark-gray);
}
@media (min-width: 769px) {
    .business_machine {
        padding-block: 112px 120px;
    }
    .business_machine_ttl {
        text-align: center;
    }
    .business_category_list {
        justify-content: center;
        gap: 8px;
    }
    .business_slider {
        padding-inline: 16px;
        margin-top: 64px;
    }
    .btn_machine_wrap,
    .btn_tool_wrap {
        max-width: 1280px;
        padding-inline: 40px;
        margin: 62px auto 0;
    }
    .slider_button_next,
    .slider_button_prev {
        width: 56px;
        height: 56px;
    }
    .business_slider .swiper-pagination {
        width: 150px;
        inset: 0;
    }
    @media (hover: hover) {
        .business_slider_img {
            transition: scale 0.3s;
        }
        .business_slider_link:hover .business_slider_img {
            scale: 1.05;
        }
        .slider_button_next:hover,
        .slider_button_prev:hover {
            cursor: pointer;
            transition: background 0.3s;
        }
        .slider_button_next::after,
        .slider_button_prev::after {
            transition: border-color 0.3s;
        }
        .slider_button_next:hover,
        .slider_button_prev:hover {
            background-color: var(--color-black);
        }
        .slider_button_next:hover::after,
        .slider_button_prev:hover::after {
            border-color: var(--color-white);
        }
    }
}
@media (max-width: 768px) {
    .business_machine {
        padding-block: 70px 80px;
    }
    .business_category_list {
        gap: 6px;
    }
    .business_slider {
        margin-top: 45px;
    }
    .business_slider {
        padding-inline: 16px;
    }
    .business_slider .swiper-slide {
        width: 240px;
    }
    .business_slider_txt {
        width: 104%;
        margin-left: -2%;
        margin-top: 3px;
    }
    .btn_machine_wrap,
    .btn_tool_wrap {
        margin-top: 44px;
    }
    .slider_button_next,
    .slider_button_prev {
        width: 48px;
        height: 48px;
    }
    .business_slider .swiper-pagination {
        width: 200px;
        top: -24px;
        left: 0;
        right: 0;
    }
}

/* business_tool */
.business_tool {
    overflow: hidden;
    background-color: #ebebeb;
}
@media (min-width: 769px) {
    .business_tool {
        padding-block: 112px 120px;
    }
    .business_tool_ttl {
        text-align: center;
    }
}
@media (max-width: 768px) {
    .business_tool {
        padding-block: 72px 110px;
    }
    .business_tool_ttl .section_ttl_word {
        display: inline;
    }
}

/* business_environment */
.business_environment {
    display: flex;
    overflow: hidden;
}
.business_environment_txt_inner {
    margin-left: auto;
}
.business_environment .business_category_list {
    justify-content: flex-start;
}
.business_environment_img_wrap {
    display: flex;
}
.business_environment_img {
    width: 25%;
    overflow: hidden;
    transform: translateZ(0);
    backface-visibility: hidden;
}
.business_environment_img_l {
    width: 100%;
}
.business_environment_img > img {
    object-fit: cover;
    object-position: center center;
    height: 100%;
    width: 100%;
}
@media (min-width: 769px) {
    .business_environment {
        padding-block: 130px 120px;
    }
    .business_environment_txt_wrap {
        width: 50%;
        padding-top: 60px;
        padding-left: 40px;
        padding-right: 10px;
        min-width: 430px;
    }
    .business_environment_txt_inner {
        max-width: 590px;
    }
    .business_environment_img_wrap {
        width: 50%;
        height: 480px;
    }
    .btn_environment {
        margin-top: 48px;
    }
}
@media (max-width: 768px) {
    .business_environment {
        padding-block: 70px 170px;
        flex-direction: column;
        position: relative;
    }
    .business_environment_txt_wrap {
        padding-inline: 16px;
    }
    .business_environment_img_wrap {
        width: 100%;
        height: 240px;
        margin-top: 45px;
    }
    .btn_environment {
        position: absolute;
        bottom: 80px;
        left: 16px;
    }
}

/* business_education */
.business_education {
    background-color: gray;
    color: var(--color-white);
    display: flex;
    align-items: center;
}
.business_education .business_category_list {
    justify-content: flex-start;
}
.business_education .business_category_link {
    border-color: var(--color-white);
    color: var(--color-white);
}
@media (min-width: 769px) {
    .business_education {
        height: 680px;
        background: url(../img/home/education_bg.jpg) no-repeat center center;
        background-size: cover;
    }
    .business_education_inner {
        max-width: 50%;
        min-width: 440px;
        padding-left: 60px;
        margin-left: auto;
    }
    .business_education_ttl {
        line-height: calc(56 / 38);
    }
    .btn_business_education {
        margin-top: 64px;
    }
}
@media (max-width: 768px) {
    .business_education {
        height: 620px;
        background: url(../img/home/education_bg_sp.jpg) no-repeat center center;
        background-size: cover;
    }
    .btn_business_education {
        margin-top: 44px;
    }
}

/* business_engineering */
.business_engineering {
    display: flex;
    overflow: hidden;
}
.business_engineering_txt_inner {
    margin-left: auto;
}
.business_engineering_txt {
    color: var(--color-dark-gray);
}
.business_engineering .business_category_list {
    justify-content: flex-start;
}
.business_engineering_img_wrap {
    display: flex;
}
.business_engineering_img {
    width: 25%;
    overflow: hidden;
    transform: translateZ(0);
    backface-visibility: hidden;
}
.business_engineering_img > img {
    object-fit: cover;
    object-position: center center;
    height: 100%;
    width: 100%;
}
.btn_engineering::after {
    content: '';
    display: block;
    position: absolute;
    top: 0;
    bottom: 0;
    margin: auto;
    background: url(../img/common/icon_tab.svg) no-repeat center center / contain;
    z-index: 1;
    width: 16px;
    height: 16px;
}
@media (min-width: 769px) {
    .business_engineering {
        padding-block: 120px;
    }
    .business_engineering_txt_wrap {
        width: 50%;
        padding-top: 34px;
        padding-left: 40px;
        padding-right: 10px;
        min-width: 430px;
    }
    .business_engineering_txt_inner {
        max-width: 600px;
    }
    .business_engineering_ttl {
        margin-top: 54px;
    }
    .business_engineering_txt {
        line-height: 2;
        margin-top: 17px;
    }
    .business_engineering_img_wrap {
        width: 50%;
        height: 480px;
    }
    .btn_engineering {
        margin-top: 56px;
    }
    .btn_engineering::after {
        right: 31px;
    }
    @media (hover: hover) {
        .btn_engineering {
            transition: background 0.3s;
        }
        .btn_engineering:hover {
            background-color: #099;
        }
    }
}
@media (max-width: 768px) {
    .business_engineering {
        padding-block: 80px 173px;
        flex-direction: column;
        position: relative;
    }
    .business_engineering_txt_wrap {
        padding-inline: 16px;
    }
    .logo_cse {
        width: 138px;
    }
    .business_engineering_ttl {
        margin-top: 37px;
    }
    .business_engineering_txt {
        line-height: 1.75;
        margin-top: 18px;
    }
    .business_engineering_img_wrap {
        width: 100%;
        height: 240px;
        margin-top: 38px;
    }
    .btn_engineering {
        position: absolute;
        bottom: 80px;
        left: 16px;
        padding-right: 46px;
    }
    .btn_engineering::after {
        right: 20px;
    }
}

/* notice */
.notice {
    background-color: #f5f5f5;
}
.notice_ttl {
    text-align: center;
    color: var(--color-dark-gray);
    font-size: 14px;
    padding-top: 52px;
    position: relative;
}
.notice_ttl::before {
    content: '';
    display: block;
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    margin: auto;
    width: 35px;
    height: 40px;
    background: url(../img/home/icon_bell.svg) no-repeat center center / contain;
}
.notice_list {
    border-top: 1px solid var(--color-silver-gray);
}
.notice_listitem {
    border-bottom: 1px solid var(--color-silver-gray);
}
.notice_link {
    display: flex;
    align-items: baseline;
    position: relative;
}
.notice_link::after {
    content: '';
    display: block;
    width: 10px;
    height: 10px;
    position: absolute;
    top: 0;
    bottom: 0;
    rotate: 45deg;
    border-top: 2px solid var(--color-gray);
    border-right: 2px solid var(--color-gray);
    margin: auto;
}
.notice_date {
    color: var(--color-gray);
}
.notice_link_ttl {
    flex: 1;
    color: var(--color-dark-gray);
}
.btn_notice {
    padding: 10px 32px;
    width: 120px;
    margin-left: auto;
    margin-right: 0;
    display: block;
    position: relative;
    color: var(--color-white);
    background-color: var(--color-gray);
}
.btn_notice::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    right: 32px;
    top: 0;
    bottom: 0;
    margin: auto;
    border-top: 2px solid var(--color-white);
    border-right: 2px solid var(--color-white);
    rotate: 45deg;
}
@media (min-width: 769px) {
    .notice {
        padding-block: 120px;
    }
    .notice_list {
        margin-top: 26px;
    }
    .notice_link {
        padding: 21px 60px 21px 0;
    }
    .notice_link::after {
        right: 32px;
    }
    .notice_date {
        width: 114px;
    }
    .notice_link_ttl_txt {
        line-height: 2.3;
    }
}
@media (max-width: 768px) {
    .notice {
        padding-block: 80px;
    }
    .notice_list {
        margin-top: 24px;
    }
    .notice_link {
        gap: 5px 0;
        flex-direction: column;
        padding: 25px 40px 25px 0;
    }
    .notice_link::after {
        right: 16px;
    }
}

/* case */
.case_link {
    background-color: var(--color-gray);
    border-radius: 16px;
    overflow: hidden;
}
.case_link_img_wrap {
    position: relative;
    overflow: hidden;
}
.case_link_category {
    background-color: var(--color-black);
    color: var(--color-white);
    position: absolute;
    border-radius: 12px;
    font-size: 12px;
    z-index: 1;
}
.case_link_name {
    color: var(--color-white);
    font-size: 16px;
}
.btn_case_wrap {
    text-align: center;
}
.swiper-horizontal > .swiper-pagination-bullets,
.swiper-pagination-bullets.swiper-pagination-horizontal,
.swiper-pagination-custom,
.swiper-pagination-fraction {
    bottom: 0;
}
.swiper-horizontal > .swiper-pagination-bullets .swiper-pagination-bullet,
.swiper-pagination-horizontal.swiper-pagination-bullets .swiper-pagination-bullet {
    margin: 0 11px;
}
.swiper-pagination-bullet-active {
    background-color: var(--color-blue);
}
@media (min-width: 769px) {
    .case {
        padding-block: 105px 120px;
    }
    .case_ttl {
        line-height: calc(56 / 38);
        text-align: center;
    }
    .case_ttl .section_ttl_word {
        display: block;
    }
    .case_list {
        gap: 18px;
        margin-top: 56px;
        align-items: stretch;
        padding-bottom: 60px;
    }
    .case_list .swiper-slide {
        width: calc((100% - 18px * 2) / 3);
        height: auto;
        display: grid;
    }
    .case_link {
        display: grid;
        grid-template-rows: subgrid;
        grid-row: span 2;
    }
    .case_link_category {
        top: 16px;
        left: 0;
        padding: 3px 10px;
        margin-inline: 16px;
    }
    .case_link_name {
        padding: 12px 17px;
        min-height: 72px;
    }
    .btn_case_wrap {
        margin-top: 66px;
    }
    .case_button_prev_wrap,
    .case_button_next_wrap {
        position: absolute;
        bottom: 0;
        z-index: 10;
    }
    .case_button_prev_wrap {
        left: calc(50% - 120px);
    }
    .case_button_next_wrap {
        right: calc(50% - 120px);
    }
    .case_button_next,
    .case_button_prev {
        cursor: pointer;
        transition: background 0.3s;
        border: 1px solid var(--color-dark-gray);
        border-radius: 50%;
        position: relative;
        width: 32px;
        height: 32px;
    }
    .case_button_next::after,
    .case_button_prev::after {
        content: '';
        display: block;
        position: absolute;
        top: 50%;
        left: 50%;
        width: 10px;
        height: 10px;
        border-top: 2px solid var(--color-dark-gray);
        border-right: 2px solid var(--color-dark-gray);
        translate: 0% -50%;
        transition: border-color 0.3s;
    }
    .case_button_next::after {
        margin-left: -7px;
        rotate: 45deg;
    }
    .case_button_prev::after {
        margin-left: -3px;
        rotate: -135deg;
    }
    .case_swiper .swiper-pagination-bullets.swiper-pagination-horizontal {
        bottom: 7px;
    }

    @media (hover: hover) {
        .case_link_img {
            transition: scale 0.3s;
        }
        .case_link:hover .case_link_img {
            scale: 1.05;
        }
        .case_button_prev:hover,
        .case_button_next:hover {
            background-color: var(--color-black);
        }
        .case_button_prev:hover::after,
        .case_button_next:hover::after {
            border-color: var(--color-white);
        }
    }
}
@media (max-width: 768px) {
    .case {
        padding-block: 72px 80px;
    }
    .case_list {
        padding-bottom: 40px;
        margin-top: 38px;
    }
    .case_list .swiper-slide {
        width: 100%;
    }
    .case_link {
        display: flex;
        flex-direction: column;
    }
    .case_link_category {
        top: 12px;
        left: 12px;
        padding: 3px 10px;
    }
    .case_link_name {
        padding: 17px 12px;
    }
    .case_link_img {
        width: 100%;
    }
    .btn_case_wrap {
        margin-top: 38px;
    }
}

/* animation */
.animation_ready .business_environment_img,
.animation_ready .business_engineering_img {
    transition: clip-path 0.5s ease;
    clip-path: polygon(100% 0, 100% 0, 100% 100%, 100% 100%);
}
.animation_loaded .business_environment_img_wrap.is_animated .business_environment_img,
.animation_loaded .business_engineering_img_wrap.is_animated .business_engineering_img {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}