/* ========================================
   Article Card Styles - Shared by index.html & page.html
   ======================================== */

/* Article List */
.article-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Article Card */
.article-card {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 0;
    padding: 0;
    height: 240px;
    transition: all var(--transition-normal);
}

.article-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}

/* 卡片悬浮时顶部高亮条 */
.article-card {
    position: relative;
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), #8fc972);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.article-card:hover::before {
    transform: scaleX(1);
}

/* Article Card Image */
.article-card-image {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    aspect-ratio: auto;
    width: 100%;
    min-height: 100%;
}

.article-card-image a,
.article-card-image img {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
}

.article-card-image img {
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.article-card:hover .article-card-image img {
    transform: scale(1.05);
}

/* 图片悬浮时的光泽扫过 */
.article-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.25) 50%, transparent 60%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
    pointer-events: none;
}

.article-card:hover .article-card-image::after {
    transform: translateX(100%);
}

/* Article Card Content */
.article-card-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Article Meta */
.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.article-category {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    background: var(--primary-lighter);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.article-category:hover {
    background: var(--primary-color);
    color: var(--text-light);
}

.article-date {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.article-meta-divider {
    color: var(--border-light);
    font-size: var(--font-size-sm);
}

/* Article Title */
.article-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
}

.article-title a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
    background-image: linear-gradient(var(--primary-color), var(--primary-color));
    background-repeat: no-repeat;
    background-position: left bottom;
    background-size: 0 2px;
    transition: color var(--transition-fast), background-size 0.35s ease;
}

.article-title a:hover {
    color: var(--primary-color);
    background-size: 100% 2px;
}

/* Article Excerpt */
.article-excerpt {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 0;
}

/* Alternating Layout: even cards show image on the right with equal width */
.article-card:nth-child(even) {
    grid-template-columns: 1.5fr 1fr;
}

.article-card:nth-child(even) .article-card-image {
    order: 2;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-card:nth-child(even) .article-card-content {
    order: 1;
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet */
@media (max-width: 1199px) {
    .article-card {
        grid-template-columns: 220px 1fr;
    }

    .article-card:nth-child(even) {
        grid-template-columns: 1fr 220px;
    }

    .article-card-content {
        padding: var(--spacing-md);
    }

    .article-title {
        font-size: var(--font-size-lg);
    }
}

/* Mobile Landscape */
@media (max-width: 991px) {
    .article-card {
        grid-template-columns: 200px 1fr;
        gap: 0;
    }

    .article-card:nth-child(even) {
        grid-template-columns: 1fr 200px;
    }

    .article-card-content {
        padding: var(--spacing-md);
    }

    .article-excerpt {
        -webkit-line-clamp: 2;
    }
}

/* Mobile Portrait */
@media (max-width: 767px) {
    .article-card {
        grid-template-columns: 1fr;
        height: auto;
    }

    .article-card:nth-child(even) {
        grid-template-columns: 1fr;
    }

    .article-card-image {
        border-radius: var(--radius-md) var(--radius-md) 0 0;
        aspect-ratio: 2.28 / 1;
        min-height: 140px;
    }

    .article-card:nth-child(even) .article-card-image {
        order: 0;
        border-radius: var(--radius-md) var(--radius-md) 0 0;
    }

    .article-card:nth-child(even) .article-card-content {
        order: 0;
    }

    .article-card-content {
        padding: var(--spacing-md);
    }

    .article-title {
        font-size: var(--font-size-lg);
    }

    .article-excerpt {
        -webkit-line-clamp: 3;
    }
}

/* Small Mobile */
@media (max-width: 479px) {
    .article-meta {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .article-title {
        font-size: var(--font-size-base);
    }
}