/* 商品詳細ページ専用 */
/* PDP 上段: sticky は全ブレークポイントで使わない（スマホ実機幅〜タブレットで画像列が追従し購入欄に被るのを防ぐ）。レイアウトは .pdp-hero（flex） */
#product-detail-page .pdp-gallery {
    position: relative;
    z-index: 1;
}
/* 旧マークアップ名やキャッシュ CSS で .product-image-container { position: sticky } が残っても PDP 内では無効化 */
#product-detail-page .product-image-container {
    position: relative !important;
    top: auto !important;
}
#product-detail-page .pdp-buybox {
    position: relative;
    z-index: 2;
    background-color: var(--color-bg);
}
#product-detail-page .pdp-description .prose {
    overflow-wrap: anywhere;
}
.thumbnail-btn.active {
    border-color: var(--color-rose-400);
    opacity: 1;
}
.section-title {
    font-size: 1.5rem;
    letter-spacing: 0.15em;
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}
.section-title::after {
    content: "";
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 1px;
    background-color: var(--color-rose-300);
}
.data-table th {
    background-color: #f9f8f6;
    font-weight: 700;
    width: 30%;
    text-align: left;
    padding: 1rem;
    border-bottom: 1px solid #f1f1f1;
}
.data-table td {
    padding: 1rem;
    border-bottom: 1px solid #f1f1f1;
}
.check-table td {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid #f1f1f1;
}
.swatch {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
    border: 2px solid transparent;
}
.swatch.active {
    border-color: var(--color-rose-400);
    transform: scale(1.1);
}
.size-btn {
    border: 1px solid #e5e7eb;
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    transition: all 0.2s;
}
.size-btn.active {
    background-color: var(--color-stone-800);
    color: #fff;
    border-color: var(--color-stone-800);
}
.fade-in {
    animation: wffFadeIn 0.8s ease forwards;
}
@keyframes wffFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}