/* 智慧农业大棚物联网云平台 - 样式文件 */

/* ========== 全局样式 ========== */
:root {
    /* 农业绿色系配色 */
    --primary-color: #2d8659;
    --primary-light: #3ba873;
    --primary-dark: #1f5d3d;
    --secondary-color: #7cb342;
    --accent-color: #ffa726;
    
    /* 状态颜色 */
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --info-color: #2196f3;
    
    /* 背景色 */
    --bg-primary: #f5f9f7;
    --bg-secondary: #ffffff;
    --bg-dark: #1a1a1a;
    
    /* 文字颜色 */
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #ffffff;
    
    /* 边框和阴影 */
    --border-color: #e0e8e4;
    --shadow-sm: 0 2px 8px rgba(45, 134, 89, 0.08);
    --shadow-md: 0 4px 16px rgba(45, 134, 89, 0.12);
    --shadow-lg: 0 8px 32px rgba(45, 134, 89, 0.16);
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* 过渡 */
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========== 顶部导航栏 ========== */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-light);
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 600;
}

.logo i {
    font-size: 2rem;
}

.nav {
    display: flex;
    gap: var(--spacing-xs);
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.25);
}

.nav-link i {
    font-size: 1.1rem;
}

/* ========== 容器 ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    width: 100%;
}

.container-fluid {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========== 主内容区域 ========== */
.main-content {
    flex: 1;
    padding: var(--spacing-lg) 0;
}

.page {
    display: none;
    animation: fadeIn 0.3s ease;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.page-title i {
    color: var(--primary-color);
}

.section-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-dark);
    font-weight: 600;
}

/* ========== 统计卡片 ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.stat-icon.online {
    background: linear-gradient(135deg, #4caf50 0%, #66bb6a 100%);
    color: white;
}

.stat-icon.warning {
    background: linear-gradient(135deg, #ff9800 0%, #ffa726 100%);
    color: white;
}

.stat-icon.offline {
    background: linear-gradient(135deg, #f44336 0%, #ef5350 100%);
    color: white;
}

.stat-icon.info {
    background: linear-gradient(135deg, #2196f3 0%, #42a5f5 100%);
    color: white;
}

.stat-info {
    flex: 1;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========== 设备状态网格 ========== */
.dashboard-section {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.device-status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.device-status-card {
    background: linear-gradient(135deg, #f5f9f7 0%, #ffffff 100%);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition);
}

.device-status-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.device-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.device-name {
    font-weight: 600;
    color: var(--primary-dark);
    font-size: 1.1rem;
}

.device-id {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-badge.online {
    background: #e8f5e9;
    color: #2e7d32;
}

.status-badge.offline {
    background: #ffebee;
    color: #c62828;
}

.status-badge.warning {
    background: #fff3e0;
    color: #e65100;
}

.device-data {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.data-item {
    display: flex;
    flex-direction: column;
}

.data-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.data-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* ========== 数据表格 ========== */
.table-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-light);
}

.data-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    font-size: 0.95rem;
}

.data-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: var(--bg-primary);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* ========== 按钮 ========== */
.btn {
    padding: var(--spacing-xs) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-light);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--text-secondary);
    color: var(--text-light);
}

.btn-secondary:hover {
    background: var(--text-primary);
}

.btn-small {
    padding: 4px 12px;
    font-size: 0.85rem;
}

.btn-info {
    background: var(--info-color);
    color: var(--text-light);
}

.btn-info:hover {
    background: #1976d2;
}

/* ========== 固件版本页面 ========== */
.firmware-controls {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.device-select {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    min-width: 250px;
    transition: var(--transition);
}

.device-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.firmware-content {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    min-height: 400px;
}

.firmware-grid {
    display: grid;
    gap: var(--spacing-md);
}

.version-card {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: var(--transition);
    position: relative;
}

.version-card.current {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #f5f9f7 0%, #ffffff 100%);
}

.version-card.current::before {
    content: '当前版本';
    position: absolute;
    top: -10px;
    right: 16px;
    background: var(--primary-color);
    color: white;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.version-number {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary-color);
}

.version-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.version-features {
    margin: 0.5rem 0;
}

.version-features h4 {
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.version-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.version-features li {
    padding: 2px 0 2px 18px;
    position: relative;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.version-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
    font-size: 0.9rem;
}

.version-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
}

.version-meta span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.version-meta strong {
    color: var(--text-primary);
}

.stable-badge {
    background: #e8f5e9;
    color: #2e7d32;
    padding: 2px 8px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
}

.unstable-badge {
    background: #fff3e0;
    color: #e65100;
    padding: 2px 8px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ========== 算法可视化页面 ========== */
.viz-controls {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: flex-end;
}

/* ========== 存储模式选项卡 ========== */
.storage-tabs {
    background: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-xs);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.tab-btn i {
    font-size: 1.2rem;
}

.tab-btn:hover {
    background: var(--bg-primary);
    color: var(--primary-color);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-light);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.control-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.control-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-left: auto;
}

.viz-main {
    display: grid;
    grid-template-columns: 1fr 550px;
    gap: var(--spacing-md);
    min-height: 500px;
}

.viz-left {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md);
    overflow: hidden;
}

.viz-right {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    max-height: 550px;
}

.viz-section-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-color);
}

.viz-canvas-container {
    height: 100%;
}

.viz-canvas {
    min-height: 420px;
    max-height: none;
    overflow-y: visible;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.viz-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    overflow-y: auto;
    height: 350px;
    min-height: 350px;
    max-height: 350px;
    padding-right: 0.5rem;
}

.viz-steps::-webkit-scrollbar {
    width: 6px;
}

.viz-steps::-webkit-scrollbar-track {
    background: var(--bg-primary);
    border-radius: 3px;
}

.viz-steps::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.viz-steps::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

.step-item {
    padding: var(--spacing-sm) var(--spacing-md);
    border-left: 4px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.step-item.active {
    border-left-color: var(--primary-color);
    background: linear-gradient(90deg, rgba(45, 134, 89, 0.1) 0%, transparent 100%);
}

.step-item.completed {
    border-left-color: var(--success-color);
    opacity: 0.7;
}

.step-number {
    display: inline-block;
    width: 24px;
    height: 24px;
    background: var(--text-secondary);
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 24px;
    font-weight: 600;
    margin-right: var(--spacing-xs);
    font-size: 0.85rem;
}

.step-item.active .step-number {
    background: var(--primary-color);
}

.step-item.completed .step-number {
    background: var(--success-color);
}

.step-desc {
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-top: 4px;
}

.step-detail {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* 版本节点可视化 */
.version-nodes {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: var(--spacing-md);
    padding-top: 1rem;
    padding-bottom: 2rem;  /* 增加底部内边距，让封口更明显 */
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
    background: linear-gradient(to bottom, rgba(45, 134, 89, 0.03) 0%, rgba(45, 134, 89, 0.08) 100%);
    border-left: 3px solid var(--primary-color);
    border-right: 3px solid var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
    border-top: none;  /* 顶部开口 */
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);  /* 只有底部圆角 */
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.1), 0 4px 12px rgba(45, 134, 89, 0.15);
    position: relative;
}

/* 栈顶开口装饰线 */
.version-nodes::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    height: 3px;
    background: linear-gradient(to right, 
        var(--primary-color) 0%, 
        var(--primary-color) 20%, 
        transparent 20%, 
        transparent 80%, 
        var(--primary-color) 80%, 
        var(--primary-color) 100%);
}

/* 栈底指示器 */
.version-nodes::after {
    content: '栈底 BASE';
    position: absolute;
    bottom: 0.4rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--primary-dark);
    opacity: 0.6;
    letter-spacing: 1px;
    background: rgba(255, 255, 255, 0.8);
    padding: 2px 8px;
    border-radius: 3px;
}

.version-node {
    background: white;
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    transition: var(--transition);
    position: relative;
    margin: 0.3rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    /* GPU 加速 */
    will-change: auto;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* 移除连接线 */
.version-node::after {
    display: none;
}

.version-node:first-child::after {
    display: none;
}

.version-node.current {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.version-node.target {
    background: linear-gradient(135deg, var(--accent-color) 0%, #ffb74d 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.version-node.rollback {
    background: #ffebee;
    border-color: var(--danger-color);
}

.version-node.popping {
    background: linear-gradient(135deg, #ffebee 0%, #ffcdd2 100%) !important;
    border-color: var(--danger-color) !important;
    animation: popOut 1.5s ease-out forwards !important;
    box-shadow: 0 8px 16px rgba(244, 67, 54, 0.3) !important;
    will-change: transform, opacity;
    backface-visibility: hidden;
    transform: translateZ(0);
    pointer-events: none;
}

/* 弹出元素的父容器在动画结束后触发空格子显示 */
.version-node.popping ~ .version-node-empty-placeholder {
    animation: showEmptyPlaceholder 0.3s ease-in 1.5s forwards;
}

@keyframes showEmptyPlaceholder {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes popOut {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
        opacity: 1;
    }
    33% {
        /* 前0.5秒：只变红，不移动 */
        transform: translate3d(0, 0, 0) scale(1.02);
        opacity: 1;
    }
    55% {
        /* 0.5-0.8秒：开始快速上升 */
        transform: translate3d(0, calc(var(--pop-distance, -150px) * 0.5), 0) scale(1.05);
        opacity: 0.9;
    }
    77% {
        /* 0.8-1.15秒：继续上升 */
        transform: translate3d(0, calc(var(--pop-distance, -150px) * 0.85), 0) scale(0.85);
        opacity: 0.4;
    }
    100% {
        /* 1.15-1.5秒：完全消失 */
        transform: translate3d(0, var(--pop-distance, -150px), 0) scale(0.7);
        opacity: 0;
    }
}

.version-node-hidden {
    transition: all 0.3s ease-out;
}

.version-node-empty {
    position: relative;
    animation: fadeInEmpty 0.4s ease-out forwards;
    will-change: transform, opacity;
    backface-visibility: hidden;
}

@keyframes fadeInEmpty {
    0% {
        opacity: 0;
        transform: translate3d(0, 0, 0) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translate3d(0, 0, 0) scale(1);
    }
}

.version-node-empty::after {
    display: none;
}

.version-node.highlight {
    animation: pulse 1s ease-in-out;
    box-shadow: 0 0 0 8px rgba(45, 134, 89, 0.2);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.node-version {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 1px;
}

.node-date {
    font-size: 0.7rem;
    opacity: 0.85;
}

.node-label {
    position: absolute;
    top: -10px;
    right: 10px;
    background: var(--accent-color);
    color: white;
    padding: 2px 6px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 600;
}

/* ========== 空状态 ========== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    text-align: center;
    min-height: 300px;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    color: var(--border-color);
}

.step-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    text-align: center;
}

.step-empty i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--border-color);
}

/* ========== 模态框 ========== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
}

.modal-header h2 {
    font-size: 1.3rem;
}

.modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: calc(80vh - 80px);
}

/* ========== 页脚 ========== */
.footer {
    background: var(--primary-dark);
    color: var(--text-light);
    padding: var(--spacing-md) 0;
    text-align: center;
    margin-top: auto;
}

.footer p {
    margin: 0;
    opacity: 0.9;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1200px) {
    .viz-main {
        grid-template-columns: 1fr 350px;
    }
}

@media (max-width: 992px) {
    .viz-main {
        grid-template-columns: 1fr;
    }
    
    .viz-right {
        max-height: 400px;
    }
    
    .nav {
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .nav {
        width: 100%;
        justify-content: center;
    }
    
    .nav-link {
        font-size: 0.9rem;
        padding: var(--spacing-xs);
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .device-status-grid {
        grid-template-columns: 1fr;
    }
    
    .viz-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .control-buttons {
        margin-left: 0;
        justify-content: stretch;
    }
    
    .control-buttons .btn {
        flex: 1;
    }
    
    .storage-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .data-table {
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: var(--spacing-sm);
    }
    
    .data-table thead {
        display: none;
    }
    
    .data-table tr {
        display: block;
        margin-bottom: var(--spacing-md);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
    }
    
    .data-table td {
        display: block;
        text-align: right;
        padding: var(--spacing-xs) var(--spacing-sm);
        border-bottom: 1px solid var(--border-color);
    }
    
    .data-table td::before {
        content: attr(data-label);
        float: left;
        font-weight: 600;
        color: var(--text-primary);
    }
    
    .data-table td:last-child {
        border-bottom: none;
    }
}

/* ========== 回退通知动画 ========== */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutRight {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100px);
    }
}

.rollback-notification {
    animation: slideInRight 0.3s ease;
}

/* ========== 创建版本表单样式 ========== */
#create-version-form input[type="text"],
#create-version-form input[type="checkbox"] {
    transition: var(--transition);
}

#create-version-form input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(45, 134, 89, 0.1);
}

#create-version-form input[type="checkbox"]:checked {
    accent-color: var(--primary-color);
}

.feature-input-group {
    animation: fadeIn 0.3s ease;
}

/* ========== 打印样式 ========== */
@media print {
    .header,
    .footer,
    .btn,
    .viz-controls,
    .rollback-notification {
        display: none;
    }
    
    .page {
        display: block !important;
    }
    
    body {
        background: white;
    }
}