/**
 * Masonry Layout Styles for News Category
 * 新闻分类砌体布局样式
 */

/* 砌体网格容器 */
.cm-masonry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    width: 100%;
    grid-auto-flow: dense; /* 自动填充空白区域 */
}

/* 大卡片 - 占2列2行 */
.cm-masonry-item-large {
    grid-column: span 2;
    grid-row: span 2;
}

/* 小卡片 - 占1列1行 */
.cm-masonry-item-small {
    grid-column: span 1;
    grid-row: span 1;
}

/* 卡片容器 */
.cm-masonry-card {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    background: #000;
}

.cm-masonry-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* 图片区域 */
.cm-masonry-image {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.cm-masonry-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease, opacity 0.3s ease;
}

.cm-masonry-card:hover .cm-masonry-image img {
    transform: scale(1.05);
    opacity: 0.8;
}

/* 遮罩层 */
.cm-masonry-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0%,
        rgba(0, 0, 0, 0.3) 50%,
        rgba(0, 0, 0, 0.9) 100%
    );
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

/* 日期 - 左上角 */
.cm-masonry-date {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.95);
    padding: 10px 15px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    text-align: center;
    z-index: 2;
}

.cm-masonry-date .date-day {
    display: block;
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
    color: #000;
}

.cm-masonry-date .date-month {
    display: block;
    font-size: 12px;
    color: #666;
    margin-top: 2px;
}

/* 分类标签 */
.cm-masonry-categories {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 2;
}

.cat-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.9);
    color: #000;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 内容区域 - 底部 */
.cm-masonry-content {
    position: relative;
    z-index: 1;
    transform: translateY(20px);
    opacity: 0.9;
    transition: all 0.3s ease;
}

.cm-masonry-card:hover .cm-masonry-content {
    transform: translateY(0);
    opacity: 1;
}

/* 标题 */
.cm-masonry-title {
    margin: 0;
    font-size: 1.5rem;
    line-height: 1.3;
    font-weight: 700;
}

.cm-masonry-item-large .cm-masonry-title {
    font-size: 2rem;
}

.cm-masonry-title a {
    color: #fff;
    text-decoration: none;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    transition: color 0.3s ease;
}

.cm-masonry-title a:hover {
    color: #f0f0f0;
}

/* 响应式布局 */
@media (max-width: 1200px) {
    .cm-masonry-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cm-masonry-item-large {
        grid-column: span 2;
        grid-row: span 1;
    }
}

@media (max-width: 768px) {
    .cm-masonry-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .cm-masonry-item-large,
    .cm-masonry-item-small {
        grid-column: span 1;
        grid-row: span 1;
    }

    .cm-masonry-title {
        font-size: 1.2rem;
    }

    .cm-masonry-item-large .cm-masonry-title {
        font-size: 1.5rem;
    }

    .cm-masonry-date {
        top: 10px;
        left: 10px;
        padding: 8px 12px;
    }

    .cm-masonry-date .date-day {
        font-size: 20px;
    }
}

/* 确保卡片高度一致 */
.cm-masonry-item-small .cm-masonry-card {
    min-height: 300px;
}

.cm-masonry-item-large .cm-masonry-card {
    min-height: 500px;
}

@media (max-width: 768px) {
    .cm-masonry-item-small .cm-masonry-card,
    .cm-masonry-item-large .cm-masonry-card {
        min-height: 250px;
    }
}