/* —— 课程列表：固定卡片宽度，课时少时也不拉满整行 —— */
.course-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, 300px);
    gap: 16px;
    justify-content: start;
}

.course-card {
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 0;
    border-radius: 12px;
    overflow: hidden;
    text-decoration: none;
    color: #111;
    background: #fff;
    border: 1px solid #ececec;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    border-color: #e0e0e0;
}

/* 封面：横版海报比例，列表页卡片保持紧凑 */
.course-card__cover {
    flex-shrink: 0;
    width: 100%;
    aspect-ratio: 16 / 11;
    background: #111;
    overflow: hidden;
}

.course-card__cover img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
}

/* 文字区：高度随内容，不拉伸留白 */
.course-card__body {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px 12px 12px;
}

.course-card__tag {
    margin: 0;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.2;
    color: #c9a100;
    letter-spacing: 0.01em;
}

.course-card__title {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 800;
    color: #111;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

.course-card__price {
    margin: 2px 0 0;
    font-style: normal;
    font-weight: 900;
    font-size: 1rem;
    color: #111;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

/* 首页：一排最多 5 卡 */
.home-course-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.85rem;
}

.home-course-grid .course-card {
    width: 100%;
}

.home-course-grid .course-card__cover {
    aspect-ratio: 1 / 1;
}

@media (max-width: 1200px) {
    .home-course-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .home-course-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.75rem;
    }

    .course-card-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 0.75rem;
    }
}

@media (max-width: 640px) {
    .home-course-grid,
    .course-card-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .course-card__title {
        font-size: 0.95rem;
    }
}