/* 响应式设计 - 移动端和PC端兼容 */

/* 基础响应式设置 */
* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 移动端优化 */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    /* 容器适配 */
    .container, .container-fluid {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    /* 导航栏移动端优化 */
    .navbar:not(.unified-navbar) {
        padding: 0.5rem 1rem;
    }
    
    .unified-navbar {
        background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%) !important;
        backdrop-filter: blur(20px) !important;
        border-bottom: 2px solid rgba(255, 255, 255, 0.15) !important;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 20px rgba(102, 126, 234, 0.2) !important;
        padding: 0.5rem 1rem !important;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .navbar-nav {
        text-align: center;
    }
    
    .navbar-nav .nav-link {
        padding: 0.75rem 1rem;
        border-bottom: 1px solid rgba(255,255,255,0.1);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    /* 卡片移动端优化 */
    .card {
        margin-bottom: 1rem;
        border-radius: 12px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    /* 按钮移动端优化 */
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
        border-radius: 8px;
        margin: 0.25rem;
        min-height: 44px; /* 触摸友好 */
    }
    
    .btn-lg {
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }
    
    /* 表单移动端优化 */
    .form-control {
        font-size: 16px; /* 防止iOS缩放 */
        font-weight: 500;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        padding: 0.75rem;
        border-radius: 8px;
        color: #2c3e50;
        line-height: 1.6;
    }
    
    .form-group {
        margin-bottom: 1rem;
    }
    
    /* 模态框移动端优化 */
    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }
    
    .modal-content {
        border-radius: 12px;
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    .modal-footer {
        padding: 1rem;
    }
    
    /* 表格移动端优化 */
    .table-responsive {
        border-radius: 8px;
        overflow: hidden;
    }
    
    .table {
        font-size: 0.9rem;
    }
    
    .table th,
    .table td {
        padding: 0.5rem;
    }
    
    /* 工具卡片移动端优化 */
    .tool-card {
        margin-bottom: 1rem;
        border-radius: 12px;
        overflow: hidden;
    }
    
    .tool-card .card-body {
        padding: 1rem;
    }
    
    .tool-card .card-title {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
    }
    
    .tool-card .card-text {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }
    
    /* 齿轮动画移动端优化 */
    .gear-container {
        transform: scale(0.8);
        margin: 1rem 0;
    }
    
    .gear {
        width: 60px;
        height: 60px;
        margin: 0.5rem;
    }
    
    /* 主题切换移动端优化 */
    .theme-dots {
        justify-content: center;
        margin: 1rem 0;
    }
    
    .theme-dot {
        width: 12px;
        height: 12px;
        margin: 0 0.25rem;
    }
    
    /* 聊天界面移动端优化 */
    .chat-container {
        height: calc(100vh - 120px);
    }
    
    .chat-messages {
        padding: 0.5rem;
    }
    
    .chat-input-container {
        padding: 0.5rem;
    }
    
    .chat-input {
        border-radius: 20px;
        padding: 0.75rem 1rem;
    }
    
    /* 侧边栏移动端优化 */
    .sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        z-index: 1050;
        transition: left 0.3s ease;
    }
    
    .sidebar.show {
        left: 0;
    }
    
    .sidebar-backdrop {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: 1040;
        display: none;
    }
    
    .sidebar-backdrop.show {
        display: block;
    }
    
    /* 移动端菜单按钮 */
    .mobile-menu-btn {
        display: block;
        position: fixed;
        top: 1rem;
        right: 1rem;
        z-index: 1060;
        background: rgba(0,0,0,0.8);
        border: none;
        border-radius: 50%;
        width: 50px;
        height: 50px;
        color: white;
        font-size: 1.2rem;
    }
    
    .desktop-menu {
        display: none;
    }
}

/* 平板端优化 */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        max-width: 100%;
        padding-left: 2rem;
        padding-right: 2rem;
    }
    
    .gear-container {
        transform: scale(0.9);
    }
    
    .tool-card {
        margin-bottom: 1.5rem;
    }
    
    .mobile-menu-btn {
        display: none;
    }
    
    .desktop-menu {
        display: block;
    }
}

/* PC端优化 */
@media (min-width: 1025px) {
    .container {
        max-width: 1200px;
    }
    
    .gear-container {
        transform: scale(1);
    }
    
    .tool-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        transition: all 0.3s ease;
    }
    
    .mobile-menu-btn {
        display: none;
    }
    
    .desktop-menu {
        display: block;
    }
    
    /* PC端悬停效果 */
    .btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }
    
    .card:hover {
        box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    }
}

/* 超宽屏优化 */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
    
    .gear-container {
        transform: scale(1.1);
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    /* 触摸设备特定样式 */
    .btn {
        min-height: 48px;
        padding: 0.875rem 1.75rem;
    }
    
    .form-control {
        min-height: 48px;
        font-weight: 500;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        color: #2c3e50;
        line-height: 1.6;
    }
    
    /* 增加触摸目标大小 */
    .nav-link,
    .dropdown-item {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    /* 禁用悬停效果 */
    .btn:hover,
    .card:hover {
        transform: none;
        box-shadow: none;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .gear {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .card {
        background-color: #2d3748;
        border-color: #4a5568;
        color: #e2e8f0;
    }
    
    .form-control {
        background-color: #4a5568;
        border-color: #718096;
        color: #e2e8f0;
        font-weight: 500;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        line-height: 1.6;
    }
    
    .btn-outline-secondary {
        border-color: #718096;
        color: #e2e8f0;
    }
    
    .btn-outline-secondary:hover {
        background-color: #718096;
        border-color: #a0aec0;
    }
}

/* 减少动画（用户偏好） */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .gear {
        animation: none;
    }
    
    .emotion-wave {
        animation: none;
    }
    
    .particle {
        animation: none;
    }
}

/* 可访问性优化 */
@media (prefers-contrast: high) {
    .btn {
        border-width: 2px;
    }
    
    .card {
        border-width: 2px;
    }
    
    .form-control {
        border-width: 2px;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .sidebar,
    .mobile-menu-btn,
    .btn {
        display: none !important;
    }
    
    .card {
        border: 1px solid #000;
        box-shadow: none;
        break-inside: avoid;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
}

/* 工具特定响应式样式 */
.tool-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.tool-header {
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.tool-content {
    flex: 1;
    padding: 1rem;
}

.tool-footer {
    padding: 1rem;
    background: #f8f9fa;
    border-top: 1px solid #dee2e6;
}

/* 聊天工具响应式 */
.chat-tool {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.chat-header {
    flex-shrink: 0;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.chat-input-area {
    flex-shrink: 0;
    padding: 1rem;
    background: #f8f9fa;
    border-top: 1px solid #dee2e6;
}

/* 表单工具响应式 */
.form-tool {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem;
}

.form-section {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* 数据展示工具响应式 */
.data-tool {
    overflow-x: auto;
}

.data-table {
    min-width: 600px;
}

/* 文件上传工具响应式 */
.upload-tool {
    text-align: center;
    padding: 2rem 1rem;
}

.upload-area {
    border: 2px dashed #dee2e6;
    border-radius: 12px;
    padding: 3rem 1rem;
    margin: 1rem 0;
    transition: all 0.3s ease;
}

.upload-area:hover {
    border-color: #667eea;
    background: #f8f9ff;
}

.upload-area.dragover {
    border-color: #667eea;
    background: #e8f0ff;
}

/* 进度条响应式 */
.progress {
    height: 8px;
    border-radius: 4px;
    margin: 1rem 0;
}

.progress-bar {
    border-radius: 4px;
}

/* 通知响应式 */
.alert {
    border-radius: 8px;
    margin: 1rem 0;
}

.alert-dismissible {
    padding-right: 3rem;
}

/* 加载动画响应式 */
.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* 空状态响应式 */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #6c757d;
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* 错误页面响应式 */
.error-page {
    text-align: center;
    padding: 3rem 1rem;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.error-code {
    font-size: 6rem;
    font-weight: bold;
    color: #dc3545;
    margin-bottom: 1rem;
}

.error-message {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

/* 成功页面响应式 */
.success-page {
    text-align: center;
    padding: 3rem 1rem;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.success-icon {
    font-size: 4rem;
    color: #28a745;
    margin-bottom: 1rem;
}

.success-message {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}