.mv {
    display: flex;
    position: relative;
    width: 100%;
    height: 750px;
}
.mv::before {
    content: "";
    width: 100%;
    height: 1px;
    background-color: #fff;
    display: flex;
    position: absolute;
    top: 20px;
    z-index: 3;
}
.mv::after {
    content: "";
    width: 100%;
    height: 1px;
    background-color: #fff;
    display: flex;
    position: absolute;
    bottom: 20px;
    z-index: 3;
}
.mv-l, .mv-r {
    display: flex;
    width: 50%;
    height: 100%;
    position: relative;
    overflow: hidden;
}
.mv-l div, .mv-r div {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 1s ease;
}
.mv-l1 {
    background: url(../img/front-page/mv-img/mv-img_l1.jpg) center / cover;
}
.mv-l2 {
    background: url(../img/front-page/mv-img/mv-img_l2.jpg) center / cover;
}
.mv-l3 {
    background: url(../img/front-page/mv-img/mv-img_l3.jpg) center / cover;
}
.mv-r1 {
    background: url(../img/front-page/mv-img/mv-img_r1.jpg) center / cover;
}
.mv-r2 {
    background: url(../img/front-page/mv-img/mv-img_r2.jpg) center / cover;
}
.mv-r3 {
    background: url(../img/front-page/mv-img/mv-img_r3.jpg) center / cover;
}
.mv-ttl {
    display: flex;
    position: absolute;
    height: 100%;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    z-index: 2;
    justify-content: center;
    align-items: center;
    text-align: center;
}
.mv-ttl h1 {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 90px;
    height: 100%;
    color: #fff;
    font-size: 38px;
    font-weight: 100;
    writing-mode: vertical-rl;
    letter-spacing: 10px;
    background-color: rgba(0, 0, 0, 0.6);
}
.mv-ttl:before {
    content: "";
    width: 1px;
    height: 100%;
    margin-right: 20px;
    background-color: #fff;
}
.mv-ttl:after {
    content: "";
    width: 1px;
    height: 100%;
    margin-left: 20px;
    background-color: #fff;
}

@media screen and (max-width: 1200px) {
    .mv {
        flex-direction: column;
        max-height: calc(100vh - 60px);
    }
    .mv-l, .mv-r {
        width: 100%;
        height: 50%;
    }
    .mv::before {
        width: 1px;
        height: 100%;
        background-color: #fff;
        display: flex;
        position: absolute;
        top: 0;
        left: 20px;
    }
    .mv::after {
        width: 1px;
        height: 100%;
        bottom: 0;
        right: 20px;
    }
    .mv-ttl {
        width: 100%;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        z-index: 2;
        flex-direction: column;
    }
    .mv-ttl h1 {
        width: 100%;
        height: 90px;
        font-size: 32px;
        writing-mode: inherit;
        letter-spacing: 10px;
    }
    .mv-ttl:before {
        width: 100%;
        height: 1px;
        margin-bottom: 20px;
        background-color: #fff;
        margin-right: 0;
    }
    .mv-ttl:after {
        width: 100%;
        height: 1px;
        margin-top: 20px;
        background-color: #fff;
        margin-left: 0;
    }
}
@media screen and (max-width: 600px) {
    .mv-ttl h1 {
        font-size: 24px;
        letter-spacing: 6px;
    }
}
@media screen and (max-width: 450px) {
    .mv-ttl h1 {
        font-size: 21px;
        letter-spacing: 4px;
    }
}

/* コンテンツ */

.top-ttl {
    width: 100%;
    padding: 60px 50px;
    border-bottom: 1px solid #c8c8c8;
    margin-bottom: 40px;
    position: relative;
}
.top-ttl .ttl_en {
    position: relative;
    font-size: 80px;
    color: #e2e2e2;
    line-height: 1;
    z-index: 1;
}
.top-ttl h2 {
    position: relative;
    font-size: 26px;
    font-weight: 100;
    margin-top: -30px;
    z-index: 2;
}
.top-ttl .icon-link {
    position: absolute;
    right: 50px;
    top: 50%;
    transform: translateY(-50%);
}

@media screen and (max-width: 1200px) {
    .top-ttl {
        margin-bottom: 0;
        border-bottom: none;
        padding: 3vw;
    }
}
@media screen and (max-width: 600px) {
    .top-ttl .ttl_en {
        font-size: 50px;
    }
    .top-ttl h2 {
        font-size: 18px;
        margin-top: -20px;
    }
}

/* NEWS */

.news .block {
    display: flex;
    border-top: 1px solid #c8c8c8;
}
.news .block .item {
    flex-direction: column;
    padding: 2vw;
    width: 25%;
    border-right: 1px solid #c8c8c8;
}
.news .block .item:last-of-type {
    border-right: none;
}
.news .block .date {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    font-size: 18px;
    color: #959595;
    margin-bottom: 20px;
}
.news .block .day {
    margin-right: 20px;
    white-space: nowrap;
    padding: 10px 0;
}
.news .block .tags-wrapper {
    width: 164px;
    display: flex;
    align-items: center;
}
.news .block .tags {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100px;
    min-width: 100px;
    white-space: nowrap;
    height: 25px;
    font-size: 14px;
    color: #fff;
    background-color: #333;
    letter-spacing: 2px;
}
.news .block .new {
    font-size: 18px;
    color: #ff4173;
    margin-left: 20px;
    white-space: nowrap;
    display: none;
}
.news .block .item:first-of-type .new {
    display: flex;
}
.news .block .text {
    line-height: 1.7;
}

@media screen and (max-width: 1200px) {
    .news .block {
        flex-direction: column;
        border-top: none;
    }
    .news .block .item {
        width: 100%;
        border-right: none;
        border-top: 1px solid #c8c8c8;
    }
    .news .block .date {
        margin-bottom: 15px;
    }
}
@media (hover: hover) and (pointer: fine) {
    .news .block .item:hover {
        opacity: 1;
        background-color: #f5f5f5;
    }
}

/* FEATURES */

.features .block {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    overflow: hidden;
}
.features .item {
    flex-direction: column;
    width: 32%;
    padding-bottom: 60px;
    border-right: 1px solid #c8c8c8;
    border-left: 1px solid #c8c8c8;
    position: relative;
}
.features .item-link {
    display: flex;
    flex-direction: column;
}
.features .item:nth-of-type(1), .features .item:nth-of-type(4) {
    border-left: none;
}
.features .item:nth-of-type(3), .features .item:nth-of-type(4), .features .item:nth-of-type(5), .features .item:nth-of-type(6) {
    border-right: none;
}
.features .item:nth-of-type(4), .features .item:nth-of-type(5), .features .item:nth-of-type(6) {
    border-left: none;
}
.features .item:nth-of-type(4) .item-link, .features .item:nth-of-type(5) .item-link {
    border-right: 1px solid #c8c8c8;
}
.features .item:nth-of-type(5) .item-link, .features .item:nth-of-type(6) .item-link {
    border-left: 1px solid #c8c8c8;
}
.features .item:nth-of-type(4) .text, .features .item:nth-of-type(5) .text, .features .item:nth-of-type(6) .text {
    border-bottom: none;
}
.features .item:nth-of-type(4) .item-link {
    position: relative;
}
.features .item:nth-of-type(4) .item-link::after {
    content: "";
    width: 100vw;
    height: 1px;
    background-color: #c8c8c8;
    position: absolute;
    bottom: 0;
    left: 0;
    z-index: 2;
}
.features .item:nth-of-type(1)::before, .features .item:nth-of-type(4)::before {
    content: "";
    width: 100vw;
    height: 1px;
    background-color: #c8c8c8;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
}
.features .item .img {
    overflow: hidden;
    display: flex;
    border-bottom: 1px solid #c8c8c8;
}
.features .item-link .features-img {
    transition: .2s ease;
}
.features .text {
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #c8c8c8;
    padding: 15px;
    transition: .2s ease;
}
.features .text img {
    display: flex;
    width: 20px;
    margin: auto 0;
    transition: .2s ease;
}

@media screen and (max-width: 1200px) {
    .news .block {
        flex-direction: column;
        border-top: none;
    }
    .news .block .item {
        width: 100%;
        border-right: none;
        border-top: 1px solid #c8c8c8;
    }
    .news .block .date {
        margin-bottom: 15px;
    }
    .features .item {
        width: 48%;
        padding-bottom: 40px;
        border: none;
    }
    .features .item:nth-of-type(4)::before {
        display: none;
    }
    .features .item:nth-of-type(1)::before, .features .item:nth-of-type(3)::before, .features .item:nth-of-type(5)::before {
        content: "";
        width: 100vw;
        height: 1px;
        background-color: #c8c8c8;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 2;
    }
    .features .item:nth-of-type(1), .features .item:nth-of-type(3) {
        border-right: 1px solid #c8c8c8;
    }
    .features .item:nth-of-type(2), .features .item:nth-of-type(4) {
        border-left: 1px solid #c8c8c8;
    }
    .features .item:nth-of-type(5) .text, .features .item:nth-of-type(6) .text {
        border-bottom: none;
    }
    .features .item:nth-of-type(5) .item-link {
        position: relative;
    }
    .features .item:nth-of-type(4) .item-link::after {
        display: none;
    }
    .features .item:nth-of-type(4) .text {
        border-bottom: 1px solid #c8c8c8;
    }
    .features .item:nth-of-type(5) .item-link::after {
        content: "";
        width: 100vw;
        height: 1px;
        background-color: #c8c8c8;
        position: absolute;
        left: 0;
        bottom: 0;
        z-index: 2;
    }
    .features .text {
        padding: 15px 10px;
        font-size: 18px;
    }
}
@media screen and (max-width: 450px) {
    .features .item:nth-of-type(3) .text, .features .item:nth-of-type(4) .text {
        height: 85px;
    }
}
@media (hover: hover) and (pointer: fine) {
    .news .block .item:hover {
        opacity: 1;
        background-color: #f5f5f5;
    }
    .features .item-link:hover {
        opacity: 1;
    }
    .features .item-link:hover .features-img {
        transform: scale(120%);
    }
    .features .item-link:hover .text img {
        margin-right: -10px;
    }
    .features .item-link:hover .text {
        background-color: #f5f5f5;
    }
}

/* BUSINESS */

.biz-block {
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 3;
    width: 100%;
    height: 350vh;
}
.biz-menu {
    display: flex;
    width: 100%;
    height: 80px;
    align-items: center;
    border-top: 1px solid #c8c8c8;
    border-bottom: 1px solid #c8c8c8;
    background-color: #fff;
}
.biz-menu .menu {
    width: 25%;
    height: 100%;
    position: relative;
    align-items: center;
    background-color: #fff;
}
.biz-menu .menu .btn {
    cursor: pointer;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
}
.biz-menu .menu_b {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 20px;
    color: #333;
    margin: auto 0;
}
.biz-menu .menu_w {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 20px;
    color: #fff;
    margin: auto 0;
}
.biz-menu .menu-bar {
    display: flex;
    align-items: center;
    width: 0;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 4;
    overflow: hidden;
    background-color: #333;
}
.biz-menu .menu-bar p {
    white-space: nowrap;
}
.biz-menu .menu:nth-of-type(1) {
    border-left: 1px solid #c8c8c8;
}
.biz-menu .menu:nth-of-type(2),.biz-menu .menu:nth-of-type(4) {
    border-left: 1px solid #c8c8c8;
    border-right: 1px solid #c8c8c8;
}
.biz-menu .menu .menu_b .eb, .biz-menu .menu .menu_w .eb  {
    color: #4ca535;
    margin-right: 15px;
}
.biz-block .biz-menu {
    position: sticky;
    position: -webkit-sticky;
    top: 102px;
}

.biz-block .item-wrapper {
    width: 100%;
    height: calc(100vh - 206px);
    position: sticky;
    position: -webkit-sticky;
    top: 206px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background-color: #ffff;
    z-index: 2;
}
.biz-block .item-inner {
    width: 100%;
    height: 52%;
    position: relative;
}
.biz-block .item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: .4s ease;
    position: absolute;
    left: 0;
    top: 0;
}
.biz-block .item.active {
    opacity: 1;
    visibility: unset;
}
.biz-block .item1 {
    background: url(../img/front-page/biz-img01.jpg) no-repeat center / cover;
}
.biz-block .item2 {
    background: url(../img/front-page/biz-img02.jpg) no-repeat center / cover;
}
.biz-block .item3 {
    background: url(../img/front-page/biz-img03.jpg) no-repeat center / cover;
}
.biz-block .item4 {
    background: url(../img/front-page/biz-img04.jpg) no-repeat center / cover;
}

.biz-block .item_btm {
    width: 100%;
    height: 43%;
    display: flex;
    justify-content: space-between;
    position: relative;
}
.item_btm-inner {
    width: 49%;
    height: 100%;    
}
.item_btm-inner.left {
    background: url(../img/front-page/biz-img05.jpg) no-repeat center / cover;
}
.item_btm-inner.right {
    background: url(../img/front-page/biz-img06.jpg) no-repeat center / cover;
}

.biz-block .item-inner:before {
    content: "";
    position: absolute;
    width: 100vw;
    height: 1px;
    background-color: #c8c8c8;
    bottom: 0;
    left: -140px;
}
.biz-block .item_btm:before {
    content: "";
    position: absolute;
    width: 100vw;
    height: 1px;
    background-color: #c8c8c8;
    top: 0;
    left: -140px;
}

.biz-text {
    display: flex;
    width: fit-content;
    flex-direction: column;
    margin: auto 7vw;
}
.biz-text .num {
    width: fit-content;
    display: flex;
    position: relative;
    color: #4ca535;
    font-size: 28px;
    margin-bottom: 30px;

}
.biz-text .num:after {
    content: "";
    width: 1px;
    height: 55px;
    background-color: #4ca535;
    position: absolute;
    top: 8px;
    right: -5px;
    transform: rotate(35deg);
}
.biz-ttl {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
}
.biz-ttl h2 {
    font-weight: 100;
    color: #fff;
    font-size: 36px;
    margin-right: 20px;
    letter-spacing: 2px;
}
.biz-ttl .ttl-sub {
    font-size: 18px;
    color: #fff;
    padding-top: 5px;
}
.business .icon-link {
    color: #fff;
}

.item_btm-inner {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}
.item_btm-text {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.item_btm-ttl {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #fff;
    margin-bottom: 60px;
}
.item_btm-ttl .eb {
    font-size: 4vw;
    line-height: 1;
    opacity: .3;
    font-weight: 100;
    letter-spacing: 3px;
}
.item_btm-ttl h2 {
    font-size: 20px;
    margin-top: -20px;
    font-weight: 100;
    letter-spacing: 3px;
}

@media screen and (max-width: 1200px) {
    .biz-block.fixed .biz-menu {
        top: 90px;
    }
    .biz-block.fixed .item-wrapper {
        height: calc(100vh - 170px);
        top: 170px;
    }
    .biz-block .item-inner:before {
        left: -20px;
    }
    .biz-block .item_btm:before {
        left: -20px;
    }
    .item_btm-ttl .eb {
        font-size: 5vw;
    }
}
@media screen and (max-width: 900px) {
    .biz-block {
        height: 400vh;
    }
    .biz-block .item-wrapper, .biz-block.fixed .item-wrapper {
        height: auto;
    }
    .biz-block .item-inner {
        height: calc(100vh - 90px);
        margin-bottom: 30px;
    }
    .biz-block .item_btm {
        height: auto;
    }
    .biz-menu .menu {
        background-color: transparent;
    }
    .biz-menu .menu-bar {
        z-index: -1;
    }
    .biz-menu p .text {
        display: none;
    }
    .biz-menu .menu .menu_b .eb  {
        margin: auto;
    }
    .biz-menu .menu .menu_w .eb {
        display: none;
    }
    .biz-block .item_btm {
        flex-direction: column;
    }
    .item_btm-inner {
        width: 100%;
        height: 300px;
    }
    .biz-block .item_btm .left {
        margin-bottom: 30px;
    }
}
@media screen and (max-width:600px) {
    .biz-block {
        height: 450vh;
    }
    .biz-block .item-inner {
        height: calc(100vh - 120px);
    }
    .biz-menu {
        height: 60px;
    }
    .biz-block.fixed .biz-menu {
        top: 60px;
    }
    .biz-block.fixed .item-wrapper {
        top: 120px;
    }
    .biz-ttl {
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
    }
    .biz-ttl h2 {
        font-size: 26px;
        margin-right: 0;
        margin-bottom: 0;
    }
    .biz-ttl .ttl-sub {
        font-size: 16px;
    }
    .business .icon-link p {
        font-size: 16px;
    }
    .item_btm-ttl .eb {
        font-size: 34px;
    }
    .item_btm-ttl h2 {
        font-size: 19px;
        margin-top: -15px;
    }
}

/* アニメーション */
.biz-ttl h2 {
    opacity: 0;
    transform: translateY(10px);
    transition: .5s ease;
}
.biz-ttl .ttl-sub {
    opacity: 0;
    transform: translateY(10px);
    transition: .5s ease;
    transition-delay: .5s;
}
.biz-text .icon-link {
    opacity: 0;
    transform: translateY(10px);
    transition: .5s ease;
    transition-delay: 1s;
}
.item.active .biz-ttl h2 {
    opacity: 1;
    transform: translateY(0);
}
.item.active .biz-ttl .ttl-sub {
    opacity: 1;
    transform: translateY(0);
}
.item.active .biz-text .icon-link {
    opacity: 1;
    transform: translateY(0);
}
.item.active.ended .biz-ttl h2 {
    opacity: 0;
    transform: translateY(10px);
}
.item.active.ended .biz-ttl .ttl-sub {
    opacity: 0;
    transform: translateY(10px);
}
.item.active.ended .biz-text .icon-link {
    opacity: 0;
    transform: translateY(10px);
}
.item4.active.ended .biz-ttl h2 {
    opacity: 1;
    transform: translateY(0);
}
.item4.active.ended .biz-ttl .ttl-sub {
    opacity: 1;
    transform: translateY(0);
}
.item4.active.ended .biz-text .icon-link {
    opacity: 1;
    transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
    .biz-block .icon-link:hover {
        opacity: 1;
    }
}