/* 导航菜单样式 */
.nav-item-with-submenu {
    position: relative;
}

.nav-item-with-submenu .nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.submenu-arrow {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.nav-item-with-submenu:hover .submenu-arrow {
    transform: rotate(180deg);
}

.submenu {
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: all 0.3s ease;
    /* 确保子菜单不占据文档流空间 */
    pointer-events: none;
}

.nav-item-with-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
    pointer-events: auto;
}

.submenu-item {
    display: flex;
    align-items: center;
    color: #374151;
    text-decoration: none;
    transition: background-color 0.2s ease;
    border-bottom: 1px solid #f3f4f6;
}

.submenu-item:last-child {
    border-bottom: none;
}

.submenu-item:hover {
    background-color: #f9fafb;
    color: #ec4899;
}

.submenu-item img {
    width: 16px;
    height: 16px;
    margin-right: 8px;
}