/* 黑白滤镜样式 */
.grayscale-mode {
    filter: grayscale(100%);
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
}

/* 自定义样式增强黑白效果 */
.grayscale-mode img {
    filter: grayscale(100%) contrast(90%);
}

.grayscale-mode .btn-primary {
    background-color: #6c757d !important;
    border-color: #6c757d !important;
}

.grayscale-mode .btn-success {
    background-color: #868e96 !important;
    border-color: #868e96 !important;
}

.grayscale-mode .text-primary {
    color: #495057 !important;
}

.grayscale-mode .bg-primary {
    background-color: #6c757d !important;
}