/* ==================== 移动端导航菜单 ==================== */

/* 桌面端显示，移动端隐藏 */
.desktop-only {
    display: flex;
}

.mobile-only {
    display: none;
}

/* 移动端导航容器 */
.mobile-nav {
    position: fixed;
    top: 15px;
    right: 15px;
    z-index: 1001;
}

/* 菜单切换按钮 */
.mobile-nav-toggle {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--gradient-primary);
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-nav-toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.mobile-nav-toggle.active {
    background: var(--primary-light);
}

/* 导航菜单 */
.mobile-nav-menu {
    position: absolute;
    top: 54px;
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.95);
    transition: all 0.3s ease;
    min-width: 150px;
}

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

/* 菜单项 */
.mobile-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 14px 18px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.mobile-nav-item:hover {
    background: var(--bg-tertiary);
}

.mobile-nav-item:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-item .nav-icon {
    font-size: 1.2rem;
}

.mobile-nav-item .nav-text {
    flex: 1;
}

/* 响应式：移动端显示菜单，隐藏桌面按钮 */
@media (max-width: 768px) {
    .desktop-only {
        display: none !important;
    }

    .mobile-only {
        display: block !important;
    }

    /* 移动端侧边面板全屏 */
    .side-panel {
        width: 100% !important;
        right: -100% !important;
        max-width: 100vw;
    }

    .side-panel.active {
        right: 0 !important;
        opacity: 1 !important;
        visibility: visible !important;
    }

    /* 移动端面板内容调整 */
    .panel-content {
        padding: 70px 20px 20px !important;
    }

    /* 移动端历史记录列表 */
    .history-panel .history-list {
        max-height: calc(100vh - 150px);
    }

    .history-panel .history-item {
        padding: 12px 14px;
        font-size: 0.9rem;
    }
}

/* 更小屏幕优化 */
@media (max-width: 480px) {
    .mobile-nav {
        top: 10px;
        right: 10px;
    }

    .mobile-nav-toggle {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .panel-content {
        padding: 60px 15px 15px !important;
    }
}