.curtain-section {
    height: 220vh;
}
.curtain-sticky {
    position: sticky;
    top: 0;
height: 100svh;
    overflow: hidden;
    background: #e6e6e1;
}
/* 写真 */

.curtain-photo {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 65vh;
    overflow: hidden;
    z-index: 1;
}
.curtain-photo img {
    width: 100%;
    height: 110%;
    object-fit: cover;
    object-position: center;
    display: block;
    transform: translate3d(0, 0, 0);
    will-change: transform;
    backface-visibility: hidden;
}
/* 幕 */

.curtain-cover {
    position: absolute;
    inset: 0;
    background: #e6e6e1;
    z-index: 3;
    transform: translate3d(0, 0, 0);
    will-change: transform;
    backface-visibility: hidden;
}
/* ロゴ */

.curtain-logo {
    position: absolute;
    left: 0;
    right: 0;
    bottom: calc(65vh - 280px);
    z-index: 4;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
    width: 80%;
    margin: 0 auto;
    pointer-events: none;
}
.curtain-logo-inner {
    width: 350px;
}
.logo-main {
    margin: 0;
    line-height: 0;
}
.logo-main img {
    width: 100%;
    height: auto;
    display: block;
}
/* scroll */

.scroll-indicator {
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translate3d(-50%, 0, 0);
    z-index: 5;
    text-align: center;
    color: #fff;
    pointer-events: none;
    will-change: transform, opacity;
    backface-visibility: hidden;
}
.scroll-indicator-text {
    font-size: 12px;
    letter-spacing: .25em;
}
.scroll-indicator-line {
    width: 1px;
    height: 40px;
    margin: 10px auto 0;
    position: relative;
    overflow: hidden;
    background: rgba(255,255,255,.2);
}
.scroll-indicator-line::after {
    content: "";
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient( to bottom, rgba(255,255,255,0), rgba(255,255,255,1), rgba(255,255,255,0) );
    animation: scrollDrop 2.5s infinite;
}
@keyframes scrollDrop {
0% {
transform:translateY(0);
opacity:0;
}
20% {
opacity:1;
}
80% {
opacity:1;
}
100% {
transform:translateY(200%);
opacity:0;
}
}
.next-content {
    max-width: 1000px;
    margin: auto;
    padding: 120px 30px;
}

/* SP */

@media (max-width:768px) {
.curtain-photo {
    height: 75vh;
}
.curtain-logo {
    width: 80%;
    justify-content: flex-end;
    bottom: calc(75vh - 200px);
}
.curtain-logo-inner {
    width: 200px;
}
}