html {
    overflow-x: clip;
}
body {
    font-family: "Noto Sans TC", system-ui, sans-serif;
    overflow-x: clip;
}
.mobile-menu {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
        opacity 0.25s ease-out,
        visibility 0.25s;
}
.mobile-menu.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Card hover lift — 跟首頁專題典藏卡的視覺一致：shadow-card → shadow-cardHover */
.collection-card {
    transition:
        box-shadow 0.25s ease,
        transform 0.25s ease;
}
.collection-card:hover {
    transform: translateY(-2px);
}
.collection-card .arrow-cta {
    transition: transform 0.2s ease;
}
.collection-card:hover .arrow-cta {
    transform: translateX(2px);
}