/* ============================================
   移动端引导遮罩 — 工具页面专用
   仅在 ≤768px 屏幕显示，PC 端完全不可见
   ============================================ */

/* 引导遮罩容器 — PC 端隐藏 */
.mobile-guide-overlay {
    display: none;
}

@media (max-width: 768px) {
    /* 全屏遮罩 */
    .mobile-guide-overlay {
        display: flex;
        position: fixed;
        inset: 0;
        z-index: 1100;
        background: rgba(255, 255, 255, 0.97);
        backdrop-filter: blur(8px);
        align-items: center;
        justify-content: center;
        padding: var(--spacing-lg);
        padding-bottom: 80px;
    }

    /* 引导卡片 */
    .mobile-guide-card {
        width: 100%;
        max-width: 360px;
        background: var(--bg-card);
        border-radius: var(--radius-xl);
        box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
        padding: var(--spacing-xl) var(--spacing-lg);
        text-align: center;
        animation: guideSlideUp 0.4s cubic-bezier(0.32, 0.72, 0, 1);
    }

    @keyframes guideSlideUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* 图标区 */
    .mobile-guide-icon {
        width: 80px;
        height: 80px;
        margin: 0 auto var(--spacing-lg);
        background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 2.5rem;
        color: white;
        box-shadow: 0 4px 20px rgba(79, 70, 229, 0.3);
    }

    /* 标题 */
    .mobile-guide-title {
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: var(--spacing-sm);
        line-height: 1.4;
    }

    /* 描述 */
    .mobile-guide-desc {
        font-size: 0.9rem;
        color: var(--text-muted);
        line-height: 1.6;
        margin-bottom: var(--spacing-lg);
    }

    /* 功能特性列表 */
    .mobile-guide-features {
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        justify-content: center;
        margin-bottom: var(--spacing-xl);
    }

    .mobile-guide-tag {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 4px 10px;
        background: var(--bg-color);
        border-radius: var(--radius-full);
        font-size: 0.75rem;
        color: var(--text-secondary);
        font-weight: 500;
    }

    .mobile-guide-tag i {
        font-size: 0.85rem;
        color: var(--primary-color);
    }

    /* 按钮组 */
    .mobile-guide-actions {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .mobile-guide-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-sm);
        padding: 14px var(--spacing-lg);
        border-radius: var(--radius-lg);
        font-size: 0.95rem;
        font-weight: 600;
        text-decoration: none;
        transition: all var(--transition-fast);
        border: none;
        cursor: pointer;
        width: 100%;
    }

    .mobile-guide-btn i {
        font-size: 1.1rem;
    }

    .mobile-guide-btn--primary {
        background: var(--primary-color);
        color: white;
    }

    .mobile-guide-btn--primary:active {
        background: var(--primary-dark);
        transform: scale(0.98);
    }

    .mobile-guide-btn--outline {
        background: transparent;
        color: var(--primary-color);
        border: 2px solid var(--border-color);
    }

    .mobile-guide-btn--outline:active {
        background: var(--bg-color);
        transform: scale(0.98);
    }

    .mobile-guide-btn--ghost {
        background: transparent;
        color: var(--text-muted);
        font-weight: 500;
        font-size: 0.85rem;
        padding: 10px;
    }

    /* 复制成功提示 */
    .mobile-guide-btn--copied {
        background: #10b981;
        color: white;
        border-color: #10b981;
    }

    /* 二维码提示 */
    .mobile-guide-qr {
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-md);
        border-top: 1px solid var(--border-light);
    }

    .mobile-guide-qr-hint {
        font-size: 0.8rem;
        color: var(--text-muted);
        margin-bottom: var(--spacing-sm);
    }

    .mobile-guide-qr img {
        width: 100px;
        height: 100px;
        border-radius: var(--radius-md);
        border: 1px solid var(--border-light);
    }

    .mobile-guide-qr-label {
        font-size: 0.75rem;
        color: var(--text-muted);
        margin-top: var(--spacing-xs);
    }
}

/* ============================================
   移动端工具 Badge — 首页卡片上的"电脑端"标签
   仅在 ≤768px 显示
   ============================================ */

/* PC 端隐藏 */
.mobile-only-badge {
    display: none;
}

@media (max-width: 768px) {
    .mobile-only-badge {
        display: inline-flex;
        align-items: center;
        gap: 3px;
        padding: 2px 8px;
        background: linear-gradient(135deg, #f0f4ff, #e8ecff);
        color: var(--primary-color);
        border-radius: var(--radius-full);
        font-size: 0.65rem;
        font-weight: 600;
        white-space: nowrap;
        letter-spacing: 0.3px;
    }

    .mobile-only-badge i {
        font-size: 0.7rem;
    }

    /* 首页高亮卡片上的 badge 定位 */
    .hp-highlight-card .mobile-only-badge,
    .hp-chart-card .mobile-only-badge,
    .feature-card .mobile-only-badge {
        position: absolute;
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }

    /* 确保父容器有定位上下文 */
    .hp-highlight-card,
    .hp-chart-card,
    .feature-card {
        position: relative;
    }
}

/* ============================================
   移动端功能面板 — 工具分组标注
   ============================================ */
@media (max-width: 768px) {
    .panel-link-badge {
        margin-left: auto;
        padding: 2px 6px;
        background: var(--bg-color);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-full);
        font-size: 0.6rem;
        color: var(--text-muted);
        font-weight: 500;
        white-space: nowrap;
    }

    .panel-link:hover .panel-link-badge,
    .panel-link:active .panel-link-badge {
        background: rgba(255, 255, 255, 0.2);
        border-color: transparent;
        color: rgba(255, 255, 255, 0.9);
    }
}

/* ============================================
   移动端预览横幅
   仅在 ≤768px 的工具页面顶部显示
   ============================================ */
.mobile-preview-banner {
    display: none;
}

@media (max-width: 768px) {
    .mobile-preview-banner {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        padding: 9px var(--spacing-md);
        background: linear-gradient(135deg, #f0f4ff, #e8f0fe);
        border: 1px solid #c7d7ff;
        border-radius: var(--radius-md);
        margin-bottom: var(--spacing-md);
        font-size: 0.78rem;
        color: var(--text-secondary);
        line-height: 1.4;
    }

    .mobile-preview-banner i {
        color: var(--primary-color);
        font-size: 1rem;
        flex-shrink: 0;
    }

    .mobile-preview-banner-text {
        flex: 1;
        font-weight: 500;
    }

    .mobile-preview-banner-link {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        color: var(--primary-color);
        font-weight: 600;
        text-decoration: none;
        white-space: nowrap;
        padding: 5px 10px;
        background: white;
        border-radius: var(--radius-sm);
        border: 1px solid #c7d7ff;
        font-size: 0.75rem;
        transition: background var(--transition-fast);
        flex-shrink: 0;
    }

    .mobile-preview-banner-link:active {
        background: #f0f4ff;
    }
}

/* ============================================
   移动端上传区域 — 统一隐藏
   所有含文件上传功能的页面，移动端自动隐藏上传区域
   手机端用户通过"一键体验示例"和"下载模板"使用
   ============================================ */
@media (max-width: 768px) {
    /* 通配选择器覆盖所有命名约定的上传区域：
       .file-upload-area / .rfm-upload-area / .rta-upload-area /
       .ra-upload-area / .la-upload-area / .pc-upload-area /
       .ec-upload-area / .ia-upload-area / .upload-area 等 */
    [class*="upload-area"],
    /* "或上传你的数据" 分隔线 */
    .upload-or-divider,
    /* rucang-section / cg-step 中含上传区域的步骤块（含"第N步：上传文件"标签） */
    .rucang-section:has([class*="upload-area"]),
    .cg-step:has([class*="upload-area"]),
    /* 示例图表下方的"去上传数据"引导遮罩 */
    .demo-preview-overlay {
        display: none !important;
    }

    /* 隐藏计算按钮的 disabled 状态提示（上传才能激活的按钮） */
    [id="calculate-btn"]:disabled,
    [id="calc-btn"]:disabled,
    [id="analyze-btn"]:disabled {
        display: none !important;
    }
}

/* ============================================
   移动端专业性布局优化
   ============================================ */
@media (max-width: 768px) {
    /* --- 页面头部 --- */
    .page-header {
        padding-bottom: var(--spacing-md) !important;
    }

    .page-title {
        font-size: 1.3rem !important;
        line-height: 1.4 !important;
    }

    .page-subtitle {
        font-size: 0.82rem !important;
        line-height: 1.6 !important;
    }

    /* --- 特性卡片网格统一折行 --- */
    [class$="-features"],
    [class*="-features"] {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    /* --- 操作区双列改单列 --- */
    [class$="-action-area"],
    [class*="-action-area"] {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-md) !important;
    }

    /* --- 图表容器移动端适配 --- */
    [id*="chart"],
    [id*="Chart"] {
        min-height: 280px !important;
    }

    /* Plotly 图表自适应高度 */
    .js-plotly-plot .plot-container {
        max-width: 100% !important;
    }

    /* --- 汇总统计卡片 --- */
    [class*="-summary-grid"],
    [class*="-stat-grid"],
    [class*="-kpi-grid"],
    [class*="-metric-grid"] {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    /* --- 数据预览表格横向滚动 --- */
    .data-preview-scroll,
    [class*="-table-wrap"],
    [class*="-table-scroll"] {
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch;
        max-width: 100%;
    }

    /* --- 操作按钮组自动换行 --- */
    [class*="-export"],
    [class*="-actions"],
    [style*="display: flex"][style*="gap"] {
        flex-wrap: wrap !important;
    }

    /* --- 计算器右侧面板（rucang-calculator）移动端紧凑 --- */
    .rucang-calculator {
        padding: var(--spacing-md) !important;
    }

    /* --- 示例/Demo 按钮在移动端更突出 --- */
    [id*="demo-btn"],
    [id*="load-demo"],
    [class*="-demo-btn"] {
        width: 100% !important;
        justify-content: center !important;
    }

    /* --- 模板下载按钮移动端加宽 --- */
    .download-template-btn {
        flex: 1 !important;
        justify-content: center !important;
        min-width: 120px !important;
    }

    /* --- FAQ 和说明区域折行 --- */
    [class*="-faq-grid"],
    [class*="-chart-row"],
    [class*="-charts-grid"] {
        grid-template-columns: 1fr !important;
    }

    /* --- 步骤条移动端紧凑 --- */
    [class*="-steps"] {
        flex-wrap: wrap !important;
        justify-content: center !important;
        gap: var(--spacing-xs) !important;
        padding: var(--spacing-sm) 0 !important;
    }

    [class*="-step-arrow"] {
        display: none !important;
    }

    /* --- 导出按钮组移动端堆叠 --- */
    .export-btn {
        font-size: 0.8rem !important;
        padding: 8px 12px !important;
    }

    /* --- section-header 换行 --- */
    .section-header {
        flex-wrap: wrap !important;
        gap: var(--spacing-sm) !important;
    }
}