/* 상단 메뉴 고정 CSS */
#hd, #mobile_header {
    position: sticky !important;
    top: 0 !important;
    z-index: 1000 !important;
    background: #1a2332 !important;
}

/* 네비게이션 배경도 고정 */
.navi_bg {
    position: sticky !important;
    top: 0 !important;
    z-index: 999 !important;
}

/* 모바일에서도 고정 */
@media (max-width: 768px) {
    #hd, #mobile_header {
        position: sticky !important;
        top: 0 !important;
        z-index: 1000 !important;
    }
}