body,html{
    margin: 0;
    font-family: 'Noto Sans CJK JP', sans-serif;
    overflow-x: hidden;
    line-height: 2em;
    font-size: 3vw;
    scroll-behavior: smooth;
}
h1, h2, h3 {
    font-weight: 300;
}
.hero-img {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-content: center;
    background-size: cover;
}
.webp .hero-img {
    background-image: url(../img/01.webp);
}
.no-webp .hero-img {
    background-image: url(../img/01.jpg);
}
.main-catch, .arrow {
    text-align: center;
}
.main-catch {
    margin-top: 5vh;
}
.main-catch h2{
    font-size: 1.25rem;
    font-weight: bold;
}
.arrow {
    height: 20vh;
    margin-bottom: 5vh;
}
.arrow img {
    height: 100%;
    object-fit: contain;
}
.main-logo {
    margin-top: 5vh;
}
.txt-wrap {
    width: 90%;
    text-align: right;
}
.sec-ttl, .sub-ttl {
    font-size: 1.25rem;
    font-weight: bold;
    position: relative;
}
.brand-wrap .sec-ttl{
    font-size: 1rem;
}
.sec-ttl::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    border-bottom: solid 2px #000;
    width: 100%;
}
.size-1 {
    width: 90vw;
    height: 133.33vw;
}
.img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.alternate {
    padding: 4rem 0;
}
.alternate > .img-wrap {
    margin: auto;
}
.alternate:nth-child(even) .txt-wrap {
    margin-left: 10%;
    text-align: left;
}
.alternate:nth-child(odd) .sec-ttl {
    text-align: right;
    padding: 0 0 0.5rem 5%;
    margin: 2rem 0;
}
.alternate:nth-child(even) .sec-ttl {
    padding: 0 0 0.5rem 0;
    margin: 2rem 0;
}
.alternate:nth-child(odd) {
    background-color: #ebeae3;
}
.gallery {
    width: 90%;
    margin: auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.size-2 {
    width: 42.5vw;
    height: 75vw;    
}
.size-3 {
    width: 42.5vw;
    height: 36.7vw;
}
.gallery .size-3 {
    margin: 2.5vw 0;
}
.size-4 {
    width: 42.5vw;
    height: 100vw;
}
.sub-ttl {
    margin-bottom: 0;
}
.sub-ttl + p {
    margin-top: 0;
}
.img-wrap + .gallery {
    margin-top: 4rem;
}
.brand-wrap {
    width: 50%;
    margin: 4rem 0;
}
.brand-wrap:nth-child(even) .img-wrap, .brand-wrap:nth-child(even) .txt-wrap:not(#id) .sec-ttl, .brand-wrap:nth-child(even) .txt-wrap:not(#id) p{
    padding-left: 2.5vw;
    width: calc(100% - 2.5vw);
}
.brand-wrap .txt-wrap:not(#id) {
    margin: 0;
    width: 100%;
}
.brand-wrap:nth-child(even) p {
    width: 100%;
}
.brand-wrap:nth-child(odd) p {
    width: 95%;
}
.brand-wrap p {
    line-height: 1.5rem;
}
.partner {
    display: block;
    text-align: center;
    color: #000;
}
.partner h2 {
    font-weight: bold;
}
.partner-logo {
    width: 50vw;
    max-height: 50vw;
    object-fit: contain;
}
.map-wrap {
    width: 85%;
    margin: 2rem auto;
    border: solid 2px #000;
    height: 50vw;
}
.map {
    width: 100%;
    height: 50vw;
    filter: grayscale(1);
}
#contact {
    margin-top: 4rem;
}
.contact-wrap {
    display: flex;
    justify-content: center;
    width: 80%;
    margin: auto;
}
.contact {
    color: #000;
    font-weight: bold;
    text-decoration: none;
    margin: 0 1rem;
    width: 50%;
    text-align: center;
}
.contact img {
    width: 90%;
    margin: 1rem auto
}
.contact .sub-ttl {
    font-size: 1rem;
}
.arrow.reverse {
    display: block;
    transform: rotateZ(180deg);
    margin: 4rem auto 2rem;
}