/* 自定义滚动条样式 */
.custom-scrollbar::-webkit-scrollbar {
    width: 4px;
}
.custom-scrollbar::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 2px;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 2px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

.h-screen-minus-60 {
    height: calc(100vh - 60px);
}

.hide-scrollbar {
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE 10+ */
}

.hide-scrollbar::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

nav .dropdown {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}
nav .dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
nav .dropdown-arrow {
    position: absolute;
    top: -6px;
    right: 20px;
    width: 12px;
    height: 12px;
    background: white;
    border-top: 1px solid #e5e7eb;
    border-left: 1px solid #e5e7eb;
    transform: rotate(45deg);
}