/* 热门文章推荐样式 */
.hot-articles-card {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.hot-articles-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    padding-bottom: 12px;
    border-bottom: 2px solid #f0f0f0;
}

.hot-articles-header i {
    font-size: 20px;
    color: #ff4d4f;
}

.hot-articles-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* 热门文章项 */
.hot-article-item {
    display: block;
    text-decoration: none;
    color: #333;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 8px;
    overflow: hidden;
    background: #fafafa;
}

.hot-article-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* 第一个文章（特色展示） - 完全复刻图片效果 */
.hot-article-item.featured {
    margin-bottom: 8px;
    position: relative;
    height: 200px;
}

.hot-article-item.featured .hot-article-thumb {
    height: 200px;
    width: 100%;
    border-radius: 8px;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.hot-article-item.featured .hot-article-thumb::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
    z-index: 1;
}

.hot-article-item.featured .hot-article-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hot-article-item.featured .hot-article-title {
    font-size: 16px;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    order: 2;
}

.hot-article-item.featured .hot-article-meta {
    color: rgba(255, 255, 255, 0.9);
    order: 1;
}

.hot-article-item.featured .hot-article-meta .meta-views {
    background: #1890ff;
    color: #fff;
    padding: 3px 8px;
    border-radius: 3px;
    font-weight: 500;
    font-size: 11px;
    display: inline-block;
}

/* 其他文章（横向布局） */
.hot-article-item:not(.featured) {
    display: flex;
    gap: 12px;
    padding: 10px;
}

.hot-article-item:not(.featured) .hot-article-thumb {
    width: 120px;
    height: 90px;
    flex-shrink: 0;
    border-radius: 6px;
}

.hot-article-item:not(.featured) .hot-article-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 4px 0;
}

.hot-article-item:not(.featured) .hot-article-title {
    font-size: 14px;
    -webkit-line-clamp: 2;
    line-clamp: 2;
}

/* 文章缩略图 */
.hot-article-thumb {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8eaed 100%);
}

.hot-article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    opacity: 0;
    display: block;
}

.hot-article-thumb img.loaded {
    opacity: 1;
}

.hot-article-item:hover .hot-article-thumb img {
    transform: scale(1.08);
}

/* 排名徽章 - 光年框架样式 */
.hot-rank-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    border-radius: 12px;
    z-index: 3;
    line-height: 1.5;
}

.hot-rank-badge.rank-1 {
    background-color: #f44336;
    padding: 3px 18px;
}

.hot-rank-badge.rank-2 {
    background-color: #2196f3;
}

.hot-rank-badge.rank-3 {
    background-color: #4caf50;
}

.hot-rank-badge.rank-4,
.hot-rank-badge.rank-5,
.hot-rank-badge.rank-gray {
    background-color: #9e9e9e;
    color: #fff;
}



/* 文章信息 */
.hot-article-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hot-article-title {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
    color: #333;
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}

.hot-article-item:hover .hot-article-title {
    color: #1890ff;
}

/* 文章元信息 */
.hot-article-meta {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    font-size: 12px;
    color: #999;
}

.hot-article-item:not(.featured) .meta-views {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 懒加载占位符 */
.lazy-load {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.lazy-load.loaded {
    animation: none;
    background: none;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* 响应式优化 */
@media (max-width: 1200px) {
    .hot-articles-card {
        display: none;
    }
}

@media (max-width: 768px) {
    .hot-articles-card {
        display: block;
        margin-bottom: 20px;
        padding: 16px;
    }

    .hot-articles-header {
        font-size: 15px;
        margin-bottom: 16px;
        padding-bottom: 10px;
    }

    .hot-articles-list {
        gap: 12px;
    }

    .hot-article-item.featured .hot-article-thumb {
        height: 160px;
    }

    .hot-article-item.featured .hot-article-info {
        padding: 12px;
    }

    .hot-article-item.featured .hot-article-title {
        font-size: 15px;
    }

    .hot-article-item:not(.featured) {
        padding: 8px;
        gap: 10px;
    }

    .hot-article-item:not(.featured) .hot-article-thumb {
        width: 100px;
        height: 75px;
    }

    .hot-article-item:not(.featured) .hot-article-title {
        font-size: 13px;
    }

    .hot-article-meta {
        font-size: 11px;
        gap: 8px;
    }

    .hot-rank-badge {
        padding: 3px 10px;
        font-size: 11px;
    }

    .hot-views-badge {
        padding: 3px 8px;
        font-size: 10px;
    }
}

/* 性能优化 */
.hot-article-item {
    will-change: transform, box-shadow;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.hot-article-thumb {
    will-change: transform;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

/* SEO优化 - 确保文本可读 */
.hot-article-title {
    word-break: break-word;
    overflow-wrap: break-word;
}

/* 无障碍优化 */
.hot-article-item:focus {
    outline: 2px solid #1890ff;
    outline-offset: 2px;
}

.hot-article-item:focus:not(:focus-visible) {
    outline: none;
}

/* 手机端热门文章卡片 - 复刻电脑端样式 */
.mobile-hot-articles-card {
    display: none;
}

@media (max-width: 1200px) {
    .mobile-hot-articles-card {
        display: block;
        background: #fff;
        border-radius: 12px;
        padding: 16px;
        margin-bottom: 16px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }

    .mobile-hot-articles-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
        margin-top: 4px;
    }

    /* 热门文章项 */
    .mobile-hot-article-item {
        display: block;
        text-decoration: none;
        color: #333;
        transition: all 0.2s;
        border-radius: 8px;
        overflow: hidden;
        background: #fafafa;
    }

    .mobile-hot-article-item:active {
        transform: scale(0.98);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    /* 第一个文章（特色展示） - 与PC端同步 */
    .mobile-hot-article-item.featured {
        margin-bottom: 2px;
        position: relative;
        height: 140px;
    }

    .mobile-hot-article-item.featured .mobile-hot-article-thumb {
        height: 140px;
        width: 100%;
        border-radius: 8px;
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
    }

    .mobile-hot-article-item.featured .mobile-hot-article-thumb::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
        z-index: 1;
    }

    .mobile-hot-article-item.featured .mobile-hot-article-info {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 10px 12px;
        z-index: 2;
        display: flex;
        flex-direction: column;
        gap: 6px;
    }

    .mobile-hot-article-item.featured .mobile-hot-article-title {
        font-size: 14px;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        color: #fff;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        order: 2;
    }

    .mobile-hot-article-item.featured .mobile-hot-article-meta {
        order: 1;
    }

    .mobile-hot-article-item.featured .mobile-hot-article-meta .meta-views {
        background: #1890ff;
        color: #fff;
        padding: 2px 6px;
        border-radius: 3px;
        font-weight: 500;
        font-size: 10px;
        display: inline-block;
    }

    /* 隐藏featured文章meta中除了meta-views之外的所有直接文本节点 */
    .mobile-hot-article-item.featured .mobile-hot-article-meta {
        font-size: 0;
    }

    .mobile-hot-article-item.featured .mobile-hot-article-meta * {
        font-size: 10px;
    }

    /* 其他文章（横向布局） - 普通样式 */
    .mobile-hot-article-item:not(.featured) {
        display: flex;
        gap: 10px;
        padding: 8px;
    }

    .mobile-hot-article-item:not(.featured) .mobile-hot-article-thumb {
        width: 90px;
        height: 68px;
        flex-shrink: 0;
        border-radius: 6px;
    }

    .mobile-hot-article-item:not(.featured) .mobile-hot-article-info {
        flex: 1;
        min-width: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 4px;
    }

    .mobile-hot-article-item:not(.featured) .mobile-hot-article-title {
        font-size: 13px;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        line-height: 1.4;
    }

    /* 文章缩略图 */
    .mobile-hot-article-thumb {
        position: relative;
        overflow: hidden;
        background: linear-gradient(135deg, #f5f7fa 0%, #e8eaed 100%);
        display: block;
    }

    .mobile-hot-article-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
        opacity: 0;
        transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    }

    .mobile-hot-article-thumb img.loaded {
        opacity: 1;
    }

    .mobile-hot-article-item:active .mobile-hot-article-thumb img {
        transform: scale(1.05);
    }

    /* 排名徽章 - 光年框架样式（与PC端同步） */
    .mobile-hot-rank-badge {
        position: absolute;
        top: 6px;
        left: 6px;
        padding: 2px 8px;
        font-size: 11px;
        font-weight: 600;
        color: #fff;
        border-radius: 10px;
        z-index: 2;
        line-height: 1.5;
    }

    .mobile-hot-rank-badge.rank-1 {
        background-color: #f44336;
        padding: 2px 16px;
    }

    .mobile-hot-rank-badge.rank-2 {
        background-color: #2196f3;
    }

    .mobile-hot-rank-badge.rank-3 {
        background-color: #4caf50;
    }

    .mobile-hot-rank-badge.rank-4,
    .mobile-hot-rank-badge.rank-5,
    .mobile-hot-rank-badge.rank-gray {
        background-color: #9e9e9e;
        color: #fff;
    }



    /* 文章信息 */
    .mobile-hot-article-info {
        display: flex;
        flex-direction: column;
        gap: 6px;
    }

    .mobile-hot-article-title {
        font-size: 14px;
        font-weight: 600;
        line-height: 1.5;
        color: #333;
        margin: 0;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        word-break: break-word;
    }

    .mobile-hot-article-item:active .mobile-hot-article-title {
        color: #1890ff;
    }

    /* 文章元信息 */
    .mobile-hot-article-meta {
        display: flex;
        align-items: center;
        justify-content: flex-start;
        gap: 10px;
        font-size: 11px;
        color: #999;
    }

    .mobile-hot-article-item:not(.featured) .mobile-hot-article-meta .meta-views {
        display: flex;
        align-items: center;
        gap: 3px;
    }
}