/* 移动端响应式优化样式 */

/* 超小屏幕设备 (小于576px) */
@media (max-width: 575.98px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .hero-section {
        padding: 80px 0 30px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-features .col-6 {
        flex: 0 0 50%;
        max-width: 50%;
    }
    
    .hero-stats .col-4 {
        flex: 0 0 50%;
        max-width: 50%;
    }
    
    .hero-stats .col-4:nth-child(3) {
        flex: 0 0 100%;
        max-width: 100%;
        margin-top: 0.5rem;
    }
    
    .btn {
        font-size: 0.9rem;
        padding: 0.6rem 1.2rem;
    }
    
    .modal-dialog {
        margin: 0.5rem;
    }
    
    .demo-header {
        padding: 2rem 0;
        padding-top: 120px;
    }
    
    .demo-header h1 {
        font-size: 2rem;
    }
    
    .demo-nav-item {
        font-size: 0.85rem;
        padding: 0.75rem;
    }
    
    .metric-number {
        font-size: 1.75rem;
    }
    
    .chart-container {
        height: 200px;
    }
    
    /* 超小屏幕新增优化 */
    .xs-container {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    .xs-section {
        padding: 1.5rem 0;
    }
    
    .xs-card {
        margin-bottom: 0.75rem;
        border-radius: 8px;
    }
    
    .xs-text-center {
        text-align: center;
    }
    
    .xs-mb-2 {
        margin-bottom: 0.5rem;
    }
    
    .xs-mt-2 {
        margin-top: 0.5rem;
    }
    
    .xs-p-2 {
        padding: 0.5rem;
    }
}

/* 移动设备优先设计 (小于768px) */
@media (max-width: 767.98px) {
    /* 导航栏优化 */
    .navbar {
        padding: 0.5rem 0;
    }
    
    .navbar-brand .brand-text .brand-name {
        font-size: 1rem;
    }
    
    .navbar-brand .brand-text .brand-subtitle {
        font-size: 0.65rem;
    }
    
    .logo-container {
        width: 40px;
        height: 40px;
    }
    
    .navbar-nav .nav-link {
        padding: 0.75rem 1rem;
        margin: 0.25rem 0;
        border-radius: 8px;
    }
    
    /* 英雄区域移动端优化 */
    .hero-section {
        min-height: 90vh;
        padding: 100px 0 50px;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .hero-features .col-6 {
        margin-bottom: 1rem;
    }
    
    .hero-features .feature-item {
        padding: 0.75rem;
    }
    
    .hero-actions .btn {
        width: 100%;
        margin-bottom: 0.75rem;
    }
    
    /* 隐藏复杂动画元素 */
    .floating-element,
    .floating-card,
    .particles-container {
        display: none !important;
    }
    
    .dashboard-mockup {
        transform: none !important;
    }
    
    /* 统计数据移动端优化 */
    .hero-stats .col-4 {
        margin-bottom: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    /* 卡片组件优化 */
    .card {
        margin-bottom: 1.5rem;
    }
    
    .card-body {
        padding: 1.25rem;
    }
    
    /* 按钮优化 */
    .btn {
        padding: 0.75rem 1.5rem;
    }
    
    .btn-lg {
        padding: 1rem 2rem;
    }
    
    /* 表单优化 */
    .form-control {
        padding: 0.75rem;
        font-size: 1rem;
    }
    
    /* 模态框优化 */
    .modal-dialog {
        margin: 1rem;
    }
    
    /* 演示页面移动端优化 */
    .demo-sidebar {
        margin-bottom: 2rem;
        position: static;
    }
    
    .demo-nav-item {
        padding: 1rem;
        font-size: 0.9rem;
    }
    
    .demo-content {
        padding: 1.5rem;
    }
    
    .dashboard-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .metric-number {
        font-size: 2rem;
    }
    
    .chart-container {
        height: 250px;
    }
    
    /* 移动端新增优化 */
    .mobile-container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .mobile-section {
        padding: 2rem 0;
    }
    
    .mobile-card {
        margin-bottom: 1rem;
        border-radius: 12px;
    }
    
    .mobile-text-center {
        text-align: center;
    }
    
    .mobile-mb-3 {
        margin-bottom: 1rem;
    }
    
    .mobile-mt-3 {
        margin-top: 1rem;
    }
    
    .mobile-p-3 {
        padding: 1rem;
    }
}

/* 平板设备优化 (768px 到 991.98px) */
@media (min-width: 768px) and (max-width: 991.98px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-actions .btn {
        margin-bottom: 0.5rem;
    }
    
    .floating-card {
        transform: scale(0.8);
    }
    
    .demo-sidebar {
        margin-bottom: 2rem;
    }
    
    /* 平板新增优化 */
    .tablet-container {
        max-width: 720px;
    }
    
    .tablet-section {
        padding: 3rem 0;
    }
    
    .tablet-card {
        margin-bottom: 1.5rem;
    }
    
    .tablet-text-left {
        text-align: left;
    }
    
    .tablet-d-flex {
        display: flex;
    }
}

/* 中等屏幕设备优化 (992px 到 1199.98px) */
@media (min-width: 992px) and (max-width: 1199.98px) {
    .container {
        max-width: 960px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .dashboard-card {
        padding: 1.5rem;
    }
    
    .metric-number {
        font-size: 2.5rem;
    }
    
    /* 中等屏幕新增优化 */
    .md-container {
        max-width: 960px;
    }
    
    .md-section {
        padding: 4rem 0;
    }
    
    .md-card {
        transition: all 0.3s ease;
    }
    
    .md-card:hover {
        transform: translateY(-5px);
    }
}

/* 大屏幕优化 (1200px 及以上) */
@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .hero-subtitle {
        font-size: 1.4rem;
    }
    
    .dashboard-card {
        padding: 2rem;
    }
    
    .metric-number {
        font-size: 3rem;
    }
    
    /* 大屏幕新增优化 */
    .desktop-container {
        max-width: 1400px;
    }
    
    .desktop-section {
        padding: 5rem 0;
    }
    
    .desktop-card {
        transition: all 0.3s ease;
    }
    
    .desktop-card:hover {
        transform: translateY(-10px);
    }
    
    .desktop-text-left {
        text-align: left;
    }
    
    .desktop-d-flex {
        display: flex;
    }
}

/* 超大屏幕优化 (1400px 及以上) */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
    
    .hero-title {
        font-size: 4.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    /* 超大屏幕新增优化 */
    .xxl-container {
        max-width: 1500px;
    }
    
    .xxl-section {
        padding: 6rem 0;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    /* 移除悬停效果 */
    .card:hover,
    .btn:hover,
    .nav-link:hover,
    .dashboard-card:hover {
        transform: none !important;
        box-shadow: inherit !important;
    }
    
    /* 增大点击区域 */
    .btn {
        min-height: 44px;
    }
    
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    /* 优化表单控件 */
    .form-control,
    .form-select {
        min-height: 44px;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    .hero-section {
        background: #000;
        color: #fff;
    }
    
    .btn-primary {
        background: #000;
        border-color: #fff;
        color: #fff;
    }
    
    .card {
        border: 2px solid #000;
    }
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #121212;
        --text-color: #ffffff;
        --card-bg: #1e1e1e;
        --border-color: #333;
    }
    
    body {
        background-color: var(--bg-color);
        color: var(--text-color);
    }
    
    .card {
        background-color: var(--card-bg);
        border-color: var(--border-color);
    }
    
    .navbar {
        background-color: rgba(0, 0, 0, 0.9) !important;
    }
    
    .demo-sidebar,
    .demo-content,
    .dashboard-card {
        background-color: var(--card-bg);
        border-color: var(--border-color);
    }
}

/* 减少动画效果 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .floating-element,
    .floating-card {
        animation: none !important;
    }
}

/* 横屏模式优化 */
@media (orientation: landscape) and (max-height: 500px) {
    .hero-section {
        min-height: 100vh;
        padding: 80px 0 20px;
    }
    
    .hero-title {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
    
    .hero-subtitle {
        margin-bottom: 1.5rem;
    }
    
    .hero-features {
        margin-bottom: 1.5rem;
    }
}

/* 打印样式优化 */
@media print {
    .navbar,
    .back-to-top,
    .floating-element,
    .demo-sidebar,
    .hero-bg-animation {
        display: none !important;
    }
    
    .hero-section {
        background: white !important;
        color: black !important;
        page-break-inside: avoid;
    }
    
    .demo-content,
    .dashboard-card {
        background: white !important;
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1, h2, h3, h4, h5, h6 {
        page-break-after: avoid;
    }
    
    .card {
        page-break-inside: avoid;
        border: 1px solid #ddd !important;
        box-shadow: none !important;
    }
}

/* 可访问性增强 */
@media (prefers-reduced-motion: no-preference) {
    .smooth-scroll {
        scroll-behavior: smooth;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo-container i {
        transform: scale(1.1);
    }
    
    .metric-number {
        text-rendering: optimizeLegibility;
    }
}

/* 键盘导航优化 */
.btn:focus-visible,
.nav-link:focus-visible,
.form-control:focus-visible,
.demo-nav-item:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.25);
}

/* 错误状态优化 */
.is-invalid:focus {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

/* 成功状态优化 */
.is-valid:focus {
    border-color: var(--success-color);
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}