/* 导航菜单样式 */
.nav-menu {
    position: absolute;
    z-index: 1000;
    right: 0;
    top: 0;
}

.nav-menu-toggle {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 5px var(--shadow-color);
    transition: all 0.3s ease;
}

.nav-menu-toggle:hover {
    background-color: var(--primary-hover-color);
    transform: scale(1.05);
}

.nav-menu-toggle svg {
    width: 24px;
    height: 24px;
}

.nav-menu-content {
    position: absolute;
    top: 45px;
    right: 80px;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
    width: 220px;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.nav-menu.active .nav-menu-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu-list {
    list-style: none;
    margin: 0;
    padding: 6px;
}

/* 分类样式 */
.nav-menu-category {
    margin: 0;
    padding: 0;
    border-radius: 8px;
    overflow: hidden;
    background-color: #ffffff;
    transition: background-color 0.2s ease;
}

.nav-menu-category + .nav-menu-category {
    margin-top: 6px;
}

.category-title {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    font-size: 13px;
    color: #3b82f6;
    background-color: #e3f0ff;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    letter-spacing: 0.3px;
}

.category-title:hover {
    background-color: #dbeafe;
}

.category-list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: #ffffff;
}

/* 最常使用分类样式 */
.nav-menu-category.most-used {
    margin-bottom: 8px;
    background-color: #ffffff;
}

.nav-menu-category.most-used .category-title {
    background-color: #e3f0ff;
    cursor: default;
    font-weight: 600;
    padding: 12px 14px;
}

.nav-menu-category.most-used .category-list {
    max-height: none;
    overflow: visible;
    background-color: #ffffff;
    padding: 4px 0;
}

/* 其他分类的悬停展开 */
.nav-menu-category:not(.most-used):hover {
    background-color: #ffffff;
}

.nav-menu-category:not(.most-used):hover .category-list {
    max-height: 300px;
    padding: 4px 0;
}

.nav-menu-item {
    padding: 0;
    margin: 0;
}

.nav-menu-link {
    display: flex;
    align-items: center;
    padding: 8px 14px;
    color: #475569;
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 13.5px;
    line-height: 1.4;
    border-radius: 4px;
    margin: 0 4px;
}

.nav-menu-link:hover {
    background-color: rgba(59, 130, 246, 0.08);
    color: #2563eb;
}

.nav-menu-link.active {
    background-color: rgba(59, 130, 246, 0.12);
    color: #2563eb;
    font-weight: 500;
}

.nav-menu-link svg {
    width: 16px;
    height: 16px;
    margin-right: 10px;
    opacity: 0.75;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.nav-menu-link:hover svg {
    opacity: 0.9;
    color: #2563eb;
}

.nav-menu-link.active svg {
    opacity: 1;
    color: #2563eb;
}

/* 更多菜单样式 */
.nav-menu-more {
    position: relative;
}

.nav-menu-more-content {
    position: absolute;
    top: 0;
    left: 100%;
    background-color: var(--panel-bg-color);
    border-radius: var(--border-radius);
    box-shadow: 0 3px 10px var(--shadow-color);
    width: 210px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: opacity var(--transition-time), visibility var(--transition-time), transform var(--transition-time);
}

.nav-menu-more:hover .nav-menu-more-content {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* 移动设备适配 */
@media (max-width: 768px) {
    .nav-menu-toggle {
        width: 36px;
        height: 36px;
    }
    
    .nav-menu-toggle svg {
        width: 20px;
        height: 20px;
    }
    
    .nav-menu-content {
        width: 200px;
        right: 16px;
    }
    
    .category-title {
        padding: 9px 12px;
        font-size: 12px;
    }
    
    .nav-menu-link {
        padding: 7px 12px;
        font-size: 13px;
    }
}