#iframeContainer {
    width: 1200px;
    margin: 0 auto;
    overflow-x: auto;
    direction: rtl;
    scrollbar-width: thin;
    -webkit-scrollbar-width: thin;
    padding: 0;
}

#iframeWrap {
    direction: ltr;
    display: inline-block;
}
.index-course {
    height: 410px;
}

/* 自定义Tailwind工具类 */
@layer utilities {
    .content-auto {
        content-visibility: auto;
    }
    .text-shadow {
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }
    .bg-gradient-9gm {
        background: linear-gradient(135deg, #C8102E 0%, #8B0000 100%);
    }
    .card-hover {
        transition: all 0.3s ease;
    }
    .card-hover:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    }
}