/* サイトバナー（スポンサーリンク） */
.site-banner-slot {
    margin-bottom: 1.5rem;
}

.site-banner-slot--top {
    max-width: none;
    margin: 0 auto;
    padding: 0;
}

/* TOPページ：人気の検索の下（hero-search-form 内） */
.hero-sponsor-section {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e2e8f0;
}

.hero-sponsor-section .site-banner-slot--top {
    margin: 0;
    max-width: none;
    width: 100%;
    padding: 0;
    border: none;
}

.hero-sponsor-section .site-banner-marquee__card .site-banner-item:not(.site-banner-item--placeholder) {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
}

.hero-sponsor-section .site-banner-marquee__card .site-banner-item--placeholder {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
}

.site-banner-slot--search {
    margin-bottom: 1.25rem;
    max-width: none;
    margin-left: auto;
    margin-right: auto;
}

.site-banner-slot--detail {
    margin-bottom: 0;
    min-width: 0;
    max-width: 100%;
}

/* 詳細ページサイドバー：カード枠は固定、広告画像のみ横スクロール */
.site-banner-item--marquee {
    min-width: 0;
    max-width: 100%;
}

.site-banner-item--marquee > .site-banner-marquee--detail {
    max-width: 100%;
    min-width: 0;
    overflow: hidden;
}

.site-banner-marquee--detail {
    --site-banner-media-height: 140px;
    --site-banner-media-max-width: 100%;
}

.site-banner-marquee--detail .site-banner-marquee__viewport {
    width: 100%;
    min-width: 0;
    max-width: 100%;
}

.site-banner-marquee--detail .site-banner-marquee__group {
    gap: 0.375rem;
    padding-right: 0.375rem;
}

.site-banner-marquee--detail .site-banner-marquee__card {
    flex: 0 0 auto;
    width: auto;
    max-width: 100%;
}

.site-banner-marquee--detail .site-banner-marquee__card .site-banner-body {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    line-height: 0;
    max-width: 100%;
}

.site-banner-marquee--detail .site-banner-link {
    display: inline-block;
    line-height: 0;
    max-width: 100%;
}

.site-banner-marquee--detail .site-banner-image {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: var(--site-banner-media-height);
    object-fit: contain;
}

.sidebar-column .site-banner-slot {
    min-width: 0;
    max-width: 100%;
}

.about-layout .sidebar-column {
    min-width: 0;
}

.sidebar-column > * {
    min-width: 0;
    max-width: 100%;
}

.site-banner-item {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 0.75rem;
    text-align: center;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
    height: 100%;
    box-sizing: border-box;
}

.site-banner-item--placeholder {
    background: #fff;
    border: 1px solid #e5e7eb;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.site-banner-placeholder-image {
    display: block;
    border-radius: 8px;
    background: #f8fafc;
    border: 1px solid #eef2f6;
    box-sizing: border-box;
}

.site-banner-label {
    display: block;
    font-size: 0.75rem;
    color: #9ca3af;
    margin-bottom: 0.5rem;
}

.site-banner-body {
    display: flex;
    justify-content: center;
    align-items: center;
}

.site-banner-link {
    display: inline-block;
    line-height: 0;
    max-width: 100%;
}

.site-banner-image {
    width: auto;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

/* 横スクロールマーキー（2枚以上） */
.site-banner-marquee {
    --site-banner-marquee-duration: 32s;
    --site-banner-media-height: 90px;
    --site-banner-media-max-width: 728px;
    position: relative;
}

.site-banner-slot--detail .site-banner-marquee {
    --site-banner-media-height: 140px;
    --site-banner-media-max-width: 100%;
}

.site-banner-marquee__viewport {
    overflow: hidden;
    width: 100%;
}

.site-banner-marquee__track {
    display: flex;
    width: max-content;
    animation: site-banner-marquee-scroll var(--site-banner-marquee-duration) linear infinite;
    will-change: transform;
}

.site-banner-marquee__group {
    display: flex;
    flex-shrink: 0;
    align-items: flex-start;
    gap: 0.25rem;
    padding-right: 0.25rem;
}

.site-banner-marquee__card {
    flex: 0 0 auto;
    width: auto;
    max-width: none;
}

.site-banner-marquee__card .site-banner-item {
    margin: 0;
}

.site-banner-marquee .site-banner-body {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    line-height: 0;
}

.site-banner-marquee .site-banner-image {
    display: block;
    width: auto;
    height: auto;
    max-height: var(--site-banner-media-height);
    max-width: var(--site-banner-media-max-width);
    object-fit: contain;
}

.site-banner-marquee .site-banner-placeholder-image {
    display: block;
    flex-shrink: 0;
    border-radius: 8px;
    background: #f8fafc;
    border: 1px solid #eef2f6;
    box-sizing: border-box;
}

.site-banner-marquee .site-banner-placeholder-image:not(.is-synced) {
    width: auto;
    height: var(--site-banner-media-height);
    max-width: var(--site-banner-media-max-width);
}

/* 単体表示（1枚） */
.site-banner-slot:not(:has(.site-banner-marquee)) .site-banner-image {
    width: auto;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

.site-banner-slot--top:not(:has(.site-banner-marquee)) .site-banner-image,
.site-banner-slot--search:not(:has(.site-banner-marquee)) .site-banner-image {
    max-height: 90px;
    object-fit: contain;
}

.site-banner-slot--detail:not(:has(.site-banner-marquee)) .site-banner-image {
    max-height: 180px;
    object-fit: contain;
}

@keyframes site-banner-marquee-scroll {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%);
    }
}

.site-banner-marquee:hover .site-banner-marquee__track,
.site-banner-marquee:focus-within .site-banner-marquee__track {
    animation-play-state: paused;
}

@media (prefers-reduced-motion: reduce) {
    .site-banner-marquee__track {
        animation: none;
        flex-wrap: wrap;
        width: 100%;
    }

    .site-banner-marquee__group[aria-hidden="true"] {
        display: none;
    }

    .site-banner-marquee__group {
        flex-wrap: wrap;
        width: 100%;
        padding-right: 0;
    }

    .site-banner-marquee:not(.site-banner-marquee--detail) .site-banner-marquee__card {
        flex: 1 1 calc(50% - 0.125rem);
        width: auto;
        max-width: none;
    }
}

@media (min-width: 769px) {
    .hero-sponsor-section {
        margin-top: 1.25rem;
        padding-top: 1.25rem;
    }

    .site-banner-marquee:not(.site-banner-marquee--detail) {
        --site-banner-media-height: 120px;
    }
}

@media (max-width: 768px) {
    .hero-sponsor-section {
        margin-top: 0.875rem;
        padding-top: 0.875rem;
        padding-bottom: 0.25rem;
    }

    .hero-sponsor-section .site-banner-slot--top {
        margin-bottom: 0;
    }

    .site-banner-marquee:not(.site-banner-marquee--detail) {
        --site-banner-media-height: 70px;
    }
}