/* TopK、TopM、TopN广告自适应样式 */
.topk-ad-container,
.topm-ad-container,
.topn-ad-container {
    margin: 15px 0;
    text-align: center;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.topk-ad-container:hover,
.topm-ad-container:hover,
.topn-ad-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.topk-ad-link,
.topm-ad-link,
.topn-ad-link {
    display: block;
    text-decoration: none;
    width: 100%;
    height: 100%;
}

.topk-ad-image,
.topm-ad-image,
.topn-ad-image {
    width: 100%;
    height: auto;
    max-width: 100%;
    display: block;
    transition: transform 0.3s ease;
}

.topk-ad-image:hover,
.topm-ad-image:hover,
.topn-ad-image:hover {
    transform: scale(1.02);
}

/* PC端 - TopK/M/N广告样式 */
@media (min-width: 769px) {
    .topk-ad-container,
    .topm-ad-container,
    .topn-ad-container {
        margin: 20px 0;
        max-height: 200px;
    }
    
    .topk-ad-image,
    .topm-ad-image,
    .topn-ad-image {
        max-height: 200px;
        object-fit: cover;
        object-position: center;
    }
}

/* 平板端 - TopK/M/N广告样式 */
@media (max-width: 768px) and (min-width: 481px) {
    .topk-ad-container,
    .topm-ad-container,
    .topn-ad-container {
        margin: 15px 0;
        max-height: 150px;
    }
    
    .topk-ad-image,
    .topm-ad-image,
    .topn-ad-image {
        max-height: 150px;
        object-fit: cover;
        object-position: center;
    }
}

/* 移动端 - TopK/M/N广告样式 */
@media (max-width: 480px) {
    .topk-ad-container,
    .topm-ad-container,
    .topn-ad-container {
        margin: 10px 0;
        max-height: 120px;
        border-radius: 6px;
    }
    
    .topk-ad-image,
    .topm-ad-image,
    .topn-ad-image {
        max-height: 120px;
        object-fit: cover;
        object-position: center;
    }
}

/* TopB广告样式 */
.topb-ad-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
    justify-content: center;
    align-items: center;
}

.topb-ad-item {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 25px;
    padding: 8px 16px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    flex: 0 1 auto;
    min-width: 120px;
    max-width: 200px;
}

.topb-ad-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.topb-ad-link {
    text-decoration: none;
    color: white;
    display: block;
    width: 100%;
}

.topb-ad-text {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 🔥图标动画 */
.hot-icon {
    animation: hotPulse 1.5s infinite;
    display: inline-block;
}

@keyframes hotPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* PC端样式 */
@media (min-width: 769px) {
    .topb-ad-container {
        justify-content: flex-start;
    }
    
    .topb-ad-item {
        flex: 0 1 calc(33.333% - 10px);
        max-width: calc(33.333% - 10px);
    }
}

/* 移动端样式 */
@media (max-width: 768px) {
    .topb-ad-container {
        gap: 8px;
        margin: 10px 0;
    }
    
    .topb-ad-item {
        flex: 0 1 calc(50% - 8px);
        max-width: calc(50% - 8px);
        min-width: 100px;
        padding: 6px 12px;
    }
    
    .topb-ad-text {
        font-size: 12px;
    }
}