/* ============================================
   Image Site - 图片站风格样式
   ============================================ */

@media (min-width: 1200px) {
    .container {
        width: 90%;
    }
}

/* === 全局调整 === */
.image-site-body {
    background: #f0f2f5;
}

.col-xs-1, .col-sm-1, .col-md-1, .col-lg-1, .col-xs-2, .col-sm-2, .col-md-2, .col-lg-2, .col-xs-3, .col-sm-3, .col-md-3, .col-lg-3, .col-xs-4, .col-sm-4,
.col-md-4, .col-lg-4, .col-xs-5, .col-sm-5, .col-md-5, .col-lg-5, .col-xs-6, .col-sm-6, .col-md-6, .col-lg-6, .col-xs-7, .col-sm-7, .col-md-7, .col-lg-7,
.col-xs-8, .col-sm-8, .col-md-8, .col-lg-8, .col-xs-9, .col-sm-9, .col-md-9, .col-lg-9, .col-xs-10, .col-sm-10, .col-md-10, .col-lg-10, .col-xs-11, .col-sm-11,
.col-md-11, .col-lg-11, .col-xs-12, .col-sm-12, .col-md-12, .col-lg-12 {
    position: relative;
    min-height: 1px;
    padding-left: 5px;
    padding-right: 5px;
}

.article-list .media-body .article-tag {
    position: relative;
}

/* === 瀑布流布局 === */
.article-list {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    padding: 15px;
}

.waterfall-item {
    width: calc(25% - 11.25px);
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.waterfall-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.waterfall-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.waterfall-link:hover {
    text-decoration: none;
}

.waterfall-img {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.waterfall-img img {
    width: 100%;
    height: 300px;
    display: block;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
}

.waterfall-item:hover .waterfall-img img {
    transform: scale(1.05);
}

.waterfall-multi {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 12px;
    padding: 2px 6px;
    border-radius: 4px;
}

.waterfall-content {
    padding: 12px;
}

.waterfall-title {
    font-size: 14px;
    font-weight: 600;
    margin: 0 0 8px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: #333;
}

.waterfall-time {
    font-size: 12px;
    color: #999;
    margin-top: 6px;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .waterfall-item {
        width: calc(33.333% - 10px);
    }
}

@media (max-width: 992px) {
    .waterfall-item {
        width: calc(50% - 7.5px);
    }
}

@media (max-width: 576px) {
    .waterfall-item {
        width: 100%;
    }
    
    .article-list {
        padding: 10px;
        gap: 10px;
    }
}