/* 现代卡片网格样式 */
.modern-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 35px;
    margin-bottom: 50px;
}

.modern-card-grid .featured-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.modern-card-grid .featured-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.modern-card-grid .item-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.modern-card-grid .item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.modern-card-grid .featured-item:hover .item-image img {
    transform: scale(1.05);
}

.modern-card-grid .item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modern-card-grid .featured-item:hover .item-overlay {
    opacity: 1;
}

.modern-card-grid .overlay-content {
    text-align: center;
}

.modern-card-grid .btn-preview {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 5px 15px rgba(var(--primary-color-rgb), 0.3);
}

.modern-card-grid .btn-preview:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(var(--primary-color-rgb), 0.4);
}

.modern-card-grid .btn-preview i {
    font-size: 14px;
}

.modern-card-grid .item-content {
    padding: 18px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.modern-card-grid .item-category {
    display: inline-block;
    padding: 4px 10px;
    background: var(--light-bg-color);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    margin-bottom: 12px;
}

.modern-card-grid .item-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 12px;
}

.modern-card-grid .item-title a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.modern-card-grid .item-title a:hover {
    color: var(--primary-color);
}

.modern-card-grid .item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: #777;
    margin-top: auto;
}

.modern-card-grid .item-date {
    display: flex;
    align-items: center;
    gap: 5px;
}

.modern-card-grid .item-views {
    display: flex;
    align-items: center;
    gap: 5px;
}

.modern-card-grid .item-views i {
    color: var(--primary-color);
    font-size: 14px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .modern-card-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 25px;
    }
    
    .modern-card-grid .item-content {
        padding: 16px;
    }
    
    .modern-card-grid .item-title {
        font-size: 15px;
    }
    
    .modern-card-grid .item-meta {
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .modern-card-grid {
        grid-template-columns: 1fr;
    }
}