/* =============================================================================== */
/* 课程列表页个性化样式 */
/* =============================================================================== */

/* ============= 课程参数样式 ============= */
.course-parameter {
    font-size: var(--text-sm);
    color: var(--text-color-tertiary);
}

/* ============= 课程筛选区域 ============= */
.course-filter {
    margin-bottom: var(--space-5);
}

.course-filter-btn {
    text-decoration: none;
}

.course-filter-container,
.course-list-container,
.course-recommend-container {
    margin-bottom: var(--space-8);
}

.course-card-image-link {
    display: block;
    text-decoration: none;
}

/* 课程卡片样式 */
.stagger-container {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: var(--space-6);
}

.stagger-container .grid-item {
    min-width: 0;
}

.course-card-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

@media (max-width: 1024px) {
    .course-card-item {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .stagger-container {
        grid-template-columns: repeat(2,1fr);
    }
}

@media (max-width: 768px) {
    .stagger-container {
        grid-template-columns: repeat(1,1fr);
    }
}

.course-result .card-image {
    aspect-ratio: 16 / 9;
}

.course-card-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.course-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-transform);
    border-radius: var(--radius-lg);
}

.course-card-details {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    background-color: var(--bg-color-primary);
}

.course-card-description {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: var(--text-sm);
    line-height: var(--line-height-normal);
    min-height: calc(var(--text-sm) * 1.3 * 2);
}

/* ============= 可访问性增强 ============= */
@media (prefers-reduced-motion: reduce) {
    .course-result .card,
    .course-result .card-image img,
    .course-card-image img {
        transition: none;
        transform: none;
    }
    
    .course-result .card:hover {
        transform: none;
    }
}