.section-black {
    background: #0f0f0f;
    padding: 5rem 0;
    min-height: calc(100vh - var(--header-height) - var(--footer-height));
}

/* 橫向長條卡片 *//* 課程卡片樣式 */
.course-strip {
    background: #1e293b;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1rem;
    display: flex;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    color: inherit;
    height: auto;
}

.course-strip:hover {
    transform: scale(1.01);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    background: #243147;
}

.strip-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    transition: transform 0.5s;
    position: relative;
    z-index: 2; /* 高於 fallback */
}

.strip-content {
    flex-grow: 1;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

@media (max-width: 992px) {
    .course-strip {
        flex-direction: column;
        height: auto;
    }

    .strip-image {
        width: 100%;
        height: auto;
        min-width: 100%;
    }
}