.ad-slot {
    width: 100%;
    border-radius: 14px;
    overflow: hidden;
    background: var(--card-bg, #fff);
    margin: 16px 0;
    position: relative;
}

.ad-slot-inner {
    position: relative;
    width: 100%;
}

.ad-item {
    display: none;
    width: 100%;
}

.ad-item--active {
    display: block;
}

.ad-link {
    display: block;
    width: 100%;
    text-decoration: none;
    line-height: 0;
}

.ad-media {
    width: 100%;
    display: block;
    transition: transform 0.3s ease;
}

.ad-media--cover {
    object-fit: cover;
    aspect-ratio: 5 / 1;
}

.ad-media--contain {
    object-fit: contain;
    max-height: 200px;
}

.ad-slot--rectangle .ad-media--cover {
    aspect-ratio: 6 / 5;
}

.ad-slot--square .ad-media--cover {
    aspect-ratio: 1 / 1;
}

.ad-slot--banner .ad-media--cover {
    aspect-ratio: 5 / 1;
}

.ad-slot--logo_wall .ad-media--contain {
    max-height: 80px;
}

.ad-link:hover .ad-media {
    transform: scale(1.03);
}

.ad-slot--placeholder {
    border: 2px dashed var(--border-color, #e2e8f0);
    background: var(--bg-secondary, #f8fafc);
}

.ad-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
    text-decoration: none;
    color: var(--text-secondary, #64748b);
    transition: all 0.2s ease;
    min-height: 120px;
}

.ad-placeholder:hover {
    color: var(--primary, #6366f1);
    background: var(--primary-bg, rgba(99, 102, 241, 0.05));
}

.ad-placeholder-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.ad-placeholder-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary, #1e293b);
}

.ad-placeholder-meta {
    font-size: 13px;
    margin-top: 6px;
    color: var(--text-muted, #94a3b8);
}

.ad-placeholder-cta {
    margin-top: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary, #6366f1);
}

.ad-native-card {
    position: relative;
    border: 1px solid var(--border-color, #e2e8f0);
}

.ad-native-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 6px;
    background: var(--warning-bg, #fef3c7);
    color: var(--warning-text, #92400e);
    font-weight: 600;
    z-index: 1;
}

.ad-native-placeholder {
    border-style: dashed;
}

.ad-native-placeholder-link {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: 24px;
}

.ad-native-placeholder-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}

.ad-native-placeholder-icon {
    font-size: 24px;
}

.ad-native-placeholder-title {
    font-weight: 600;
    color: var(--text-primary, #1e293b);
}

.ad-native-placeholder-cta {
    font-size: 13px;
    color: var(--primary, #6366f1);
    font-weight: 600;
}

.ad-slot--carousel .ad-slot-dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 8px 0;
}

.ad-slot--carousel .ad-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color, #cbd5e1);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: background 0.2s;
}

.ad-slot--carousel .ad-dot--active {
    background: var(--primary, #6366f1);
}

@media (max-width: 768px) {
    .ad-slot--hide-mobile {
        display: none;
    }

    .ad-media--cover {
        aspect-ratio: 16 / 9;
    }
}

@media (min-width: 769px) {
    .ad-slot--hide-pc {
        display: none;
    }
}

/* 购买页 */
.ad-buy-page .ad-position-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.ad-position-card {
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 14px;
    padding: 20px;
    background: var(--card-bg, #fff);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.ad-position-card:hover {
    border-color: var(--primary, #6366f1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.ad-position-card h3 {
    margin: 0 0 8px;
    font-size: 16px;
}

.ad-position-card .ad-pos-meta {
    font-size: 13px;
    color: var(--text-muted, #94a3b8);
    margin-bottom: 12px;
}

.ad-package-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.ad-package-option {
    border: 2px solid var(--border-color, #e2e8f0);
    border-radius: 10px;
    padding: 12px 16px;
    cursor: pointer;
    transition: border-color 0.2s;
    flex: 1;
    min-width: 100px;
    text-align: center;
}

.ad-package-option:has(input:checked) {
    border-color: var(--primary, #6366f1);
    background: var(--primary-bg, rgba(99, 102, 241, 0.05));
}

.ad-package-option input {
    display: none;
}

.ad-package-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary, #6366f1);
}

.ad-order-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.ad-order-status--pending_pay { background: #fef3c7; color: #92400e; }
.ad-order-status--pending_review { background: #dbeafe; color: #1e40af; }
.ad-order-status--active { background: #d1fae5; color: #065f46; }
.ad-order-status--rejected { background: #fee2e2; color: #991b1b; }
.ad-order-status--ended { background: #f1f5f9; color: #475569; }

.ad-label-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-weight: 600;
    z-index: 2;
}

.ad-item {
    position: relative;
}

.ad-placeholder--rich .ad-placeholder-stats {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 8px;
    font-size: 13px;
    color: var(--text-muted, #94a3b8);
}

.ad-placeholder-price {
    margin-top: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary, #6366f1);
}

.ad-calendar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.ad-calendar-month {
    flex: 1;
    min-width: 72px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border-color, #e2e8f0);
    text-align: center;
    font-size: 13px;
}

.ad-calendar-month--full { background: #fee2e2; border-color: #fca5a5; }
.ad-calendar-month--partial { background: #fef3c7; border-color: #fcd34d; }
.ad-calendar-month--open { background: #d1fae5; border-color: #6ee7b7; }

.ad-calendar-label { display: block; font-weight: 600; }
.ad-calendar-status { font-size: 12px; color: var(--text-muted); }

.ad-preview-panel { position: sticky; top: 80px; }
.ad-preview-tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.ad-preview-tab {
    border: 1px solid var(--border-color);
    background: transparent;
    padding: 6px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
}
.ad-preview-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.ad-preview-mock {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    background: var(--bg-secondary);
}
.ad-preview-header { padding: 8px 12px; background: var(--card-bg); font-size: 12px; font-weight: 600; }
.ad-preview-block { height: 40px; margin: 8px; background: var(--card-bg); border-radius: 6px; }
.ad-preview-slot {
    margin: 8px;
    padding: 20px 12px;
    background: linear-gradient(135deg, rgba(99,102,241,.15), rgba(99,102,241,.05));
    border: 2px dashed var(--primary);
    border-radius: 8px;
    text-align: center;
    font-size: 12px;
    color: var(--primary);
}
.ad-preview-slot-label { display: block; font-weight: 700; margin-bottom: 4px; }
.ad-preview-mock--mobile { max-width: 200px; margin: 0 auto; }

.ad-center-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    margin-top: 16px;
}
.ad-center-stat {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}
.ad-center-stat .val { display: block; font-size: 22px; font-weight: 700; }
.ad-center-stat .lbl { font-size: 12px; color: var(--text-muted); }

.ad-cal-dot { margin-right: 2px; }
.ad-cal-dot--full { color: #ef4444; }
.ad-cal-dot--partial { color: #f59e0b; }
.ad-cal-dot--open { color: #22c55e; }

@media (max-width: 900px) {
    .ad-buy-layout { grid-template-columns: 1fr !important; }
    .ad-preview-panel { position: static; }
}

.rank-list-native-ad {
    padding: 8px 0;
}

.rank-list-native-ad .ad-native-card {
    margin: 0;
}

.ad-upload-preview {
    max-width: 100%;
    border-radius: 10px;
    margin-top: 12px;
    border: 1px solid var(--border-color, #e2e8f0);
}