.about-main {
    position: relative;
}

.about-hero {
    position: sticky;
    top: 0;
    z-index: 0;
    height: 100vh;
    border-radius: 0;
}

.about-scroll-content {
    position: relative;
    z-index: 2;
    margin-top: -50vh;
    overflow: visible;
    border-radius: 30px 30px 0 0;
    background: transparent;
    box-shadow: 0 -28px 90px rgba(17, 23, 35, .14);
}

.about-scroll-content > section {
    position: relative;
    overflow: hidden;
    border-radius: 30px 30px 0 0;
    background: #fff;
    box-shadow: 0 -28px 80px rgba(17, 23, 35, .1);
}

.about-scroll-content > section + section {
    margin-top: -30px;
}

.about-scroll-content > .about-wh {
    overflow: visible;
    background: #111723;
}

.about-scroll-content > .about-factory {
    background: #f5f7fa;
}

.about-wh {
    display: block;
    background: #111723;
    color: #fff;
}

.about-wh__panel {
    position: relative;
    height: 200vh;
    min-height: 0;
    overflow: visible;
    border-radius: 0;
}

.about-wh__sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
    background: #111723;
}

.about-wh__panel--stacked .about-wh__sticky {
    top: 80px;
    height: calc(100vh - 80px);
    border-radius: 30px 30px 0 0;
}

.about-wh__panel--stacked {
    margin-top: -100vh;
}

.about-wh__panel:last-child {
    height: 100vh;
}

.about-wh__sticky > img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100vh;
    object-fit: cover;
    transform: scale(1.08);
    filter: brightness(.82);
    transition: transform 1.4s cubic-bezier(.16, 1, .3, 1), filter 1.4s cubic-bezier(.16, 1, .3, 1);
}

.about-wh__panel--stacked .about-wh__sticky > img {
    height: calc(100vh - 80px);
}

.about-wh__panel.is-visible .about-wh__sticky > img {
    transform: scale(1);
    filter: brightness(.9);
}

.about-wh__sticky::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, .12), rgba(0, 0, 0, .38));
    pointer-events: none;
}

.about-wh__content {
    position: relative;
    z-index: 2;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 150px;
    opacity: 0;
    transform: translateY(70px);
    filter: blur(8px);
    transition: opacity 1.15s cubic-bezier(.16, 1, .3, 1), transform 1.15s cubic-bezier(.16, 1, .3, 1), filter 1.15s cubic-bezier(.16, 1, .3, 1);
}

.about-wh__panel.is-visible .about-wh__content {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
}

.about-wh__content h2 {
    max-width: 650px;
    font-size: 42px;
}

.about-wh__content p {
    max-width: 720px;
    font-size: 18px;
}

@media (max-width: 1024px) {
    .about-hero {
        height: 72vh;
    }

    .about-scroll-content {
        margin-top: -42vh;
        border-radius: 22px 22px 0 0;
    }

    .about-scroll-content > section {
        border-radius: 22px 22px 0 0;
    }

    .about-scroll-content > section + section {
        margin-top: -18px;
    }

    .about-wh__panel,
    .about-wh__panel:last-child {
        height: auto;
        min-height: 560px;
    }

    .about-wh__panel--stacked {
        margin-top: 0;
    }

    .about-wh__panel--stacked .about-wh__sticky {
        top: 0;
        height: 100%;
        border-radius: 18px 18px 0 0;
    }

    .about-wh__sticky,
    .about-wh__sticky > img,
    .about-wh__sticky::after,
    .about-wh__content {
        position: absolute;
        inset: 0;
        height: 100%;
        margin-top: 0;
    }

    .about-wh__content {
        padding-top: 90px;
        padding-bottom: 60px;
    }
}

/* Preserve the desktop sticky narrative on smaller screens without removing document flow. */
@media (max-width: 1024px) {
    .about-main {
        overflow-x: clip;
    }

    .about-hero {
        height: 82svh;
        min-height: 620px;
    }

    .about-scroll-content {
        margin-top: -38svh;
    }

    .about-wh__panel,
    .about-wh__panel:last-child {
        height: 200svh;
        min-height: 0;
    }

    .about-wh__panel--stacked {
        margin-top: -100svh;
    }

    .about-wh__panel:last-child {
        height: 100svh;
    }

    .about-wh__sticky,
    .about-wh__panel--stacked .about-wh__sticky {
        position: sticky;
        inset: auto;
        top: 0;
        height: 100svh;
        min-height: 620px;
        border-radius: 22px 22px 0 0;
    }

    .about-wh__sticky > img,
    .about-wh__panel--stacked .about-wh__sticky > img {
        position: absolute;
        inset: 0;
        height: 100%;
    }

    .about-wh__sticky::after {
        position: absolute;
        inset: 0;
        height: auto;
        background: linear-gradient(90deg, rgba(0, 0, 0, .62), rgba(0, 0, 0, .24) 72%, rgba(0, 0, 0, .08));
    }

    .about-wh__content {
        position: relative;
        inset: auto;
        height: 100%;
        padding-top: 118px;
        padding-bottom: 72px;
        justify-content: center;
    }

    .about-wh__content h2 {
        max-width: 680px;
        font-size: clamp(34px, 6vw, 42px);
        line-height: 1.12;
    }

    .about-wh__content p {
        max-width: 640px;
        font-size: 16px;
        line-height: 1.68;
    }
}

@media (max-width: 640px) {
    .about-hero {
        height: 76svh;
        min-height: 540px;
    }

    .about-scroll-content {
        margin-top: -30svh;
        border-radius: 20px 20px 0 0;
    }

    .about-scroll-content > section {
        border-radius: 20px 20px 0 0;
    }

    .about-wh__sticky,
    .about-wh__panel--stacked .about-wh__sticky {
        min-height: 540px;
        border-radius: 20px 20px 0 0;
    }

    .about-wh__content {
        padding-top: 96px;
        padding-bottom: 60px;
    }

    .about-wh__content h2 {
        font-size: clamp(30px, 9vw, 38px);
    }

    .about-wh__content p {
        font-size: 15px;
    }
}