/* ============================================
   ERD VAT 管理系统 - 仪表盘样式 (方案D)
   现代渐变 + 毛玻璃效果 + 数据可视化
   ============================================ */

/* ==================== CSS变量 ==================== */
:root {
    /* 主色调 */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --danger-gradient: linear-gradient(135deg, #ff0844 0%, #ffb199 100%);
    --info-gradient: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    
    /* 毛玻璃效果 */
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    --glass-blur: blur(10px);
    
    /* 浅色主题 */
    --bg-gradient: linear-gradient(135deg, #e0e5ec 0%, #f5f7fa 50%, #e8f4f8 100%);
    --card-bg: rgba(255, 255, 255, 0.9);
    --card-hover-bg: rgba(255, 255, 255, 1);
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-muted: #8e8ea0;
    --border-color: rgba(0, 0, 0, 0.08);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* 动画 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* 深色主题 */
[data-theme="dark"] {
    --bg-gradient: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    --card-bg: rgba(30, 30, 50, 0.9);
    --card-hover-bg: rgba(40, 40, 65, 1);
    --text-primary: #ffffff;
    --text-secondary: #b4b4c8;
    --text-muted: #6e6e8a;
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(30, 30, 50, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
}

/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(118, 75, 162, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(79, 172, 254, 0.1) 0%, transparent 40%);
    pointer-events: none;
    z-index: -1;
}

/* ==================== 应用容器 ==================== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==================== 顶部导航栏 ==================== */
.top-navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: var(--spacing-md) var(--spacing-xl);
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1800px;
    margin: 0 auto;
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-logo-icon {
    font-size: 2rem;
}

/* 导航标签页 */
.navbar-tabs {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--card-bg);
    padding: var(--spacing-xs);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

.nav-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    background: transparent;
    white-space: nowrap;
}

.nav-tab:hover {
    color: var(--text-primary);
    background: rgba(102, 126, 234, 0.1);
}

.nav-tab.active {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* 搜索框 */
.global-search {
    position: relative;
}

.global-search input {
    width: 280px;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    background: var(--card-bg);
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.global-search input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
    width: 320px;
}

.global-search input::placeholder {
    color: var(--text-muted);
}

.global-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-shortcut {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    padding: 2px 6px;
    background: var(--border-color);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 通知按钮 */
.notification-btn {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1.25rem;
}

.notification-btn:hover {
    background: var(--card-hover-bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--danger-gradient);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 用户头像 */
.user-avatar-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-avatar-wrapper:hover {
    background: rgba(102, 126, 234, 0.1);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ==================== 主内容区 ==================== */
.main-content {
    flex: 1;
    padding: var(--spacing-xl);
    max-width: 1800px;
    margin: 0 auto;
    width: 100%;
}

/* ==================== 仪表盘布局 ==================== */
.dashboard-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* 欢迎区域 */
.dashboard-welcome {
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl) var(--spacing-2xl);
    color: white;
    position: relative;
    overflow: hidden;
}

.dashboard-welcome::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.dashboard-welcome::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: 20%;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

.welcome-content {
    position: relative;
    z-index: 1;
}

.welcome-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.welcome-subtitle {
    font-size: 1rem;
    opacity: 0.9;
}

.welcome-time {
    font-size: 0.875rem;
    opacity: 0.8;
    margin-top: var(--spacing-sm);
}

/* 统计卡片网格 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.stat-card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.stat-card.primary::before { background: var(--primary-gradient); }
.stat-card.success::before { background: var(--success-gradient); }
.stat-card.warning::before { background: var(--warning-gradient); }
.stat-card.danger::before { background: var(--danger-gradient); }

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

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-card.primary .stat-card-icon { background: rgba(102, 126, 234, 0.15); }
.stat-card.success .stat-card-icon { background: rgba(79, 172, 254, 0.15); }
.stat-card.warning .stat-card-icon { background: rgba(250, 112, 154, 0.15); }
.stat-card.danger .stat-card-icon { background: rgba(255, 8, 68, 0.15); }

.stat-card-trend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: var(--radius-full);
}

.stat-card-trend.up {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
}

.stat-card-trend.down {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.stat-card-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-card-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.stat-card-chart {
    height: 40px;
    margin-top: var(--spacing-md);
}

/* 图表区域 */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
}

.chart-card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.chart-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.chart-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chart-card-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.chart-period-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: transparent;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chart-period-btn:hover,
.chart-period-btn.active {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
}

.chart-container {
    height: 300px;
}

/* 活动列表 */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-height: 340px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.activity-item:hover {
    background: rgba(102, 126, 234, 0.05);
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1rem;
}

.activity-icon.user { background: rgba(102, 126, 234, 0.15); }
.activity-icon.card { background: rgba(79, 172, 254, 0.15); }
.activity-icon.alert { background: rgba(255, 8, 68, 0.15); }
.activity-icon.system { background: rgba(250, 112, 154, 0.15); }

.activity-content {
    flex: 1;
    min-width: 0;
}

.activity-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.activity-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.activity-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
}

/* 快速操作区 */
.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.quick-action-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
}

.quick-action-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: #667eea;
}

.quick-action-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--primary-gradient);
    color: white;
}

.quick-action-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.quick-action-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ==================== 工作台布局 ==================== */
.workspace-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* 页面标题 */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.page-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.page-title h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.page-title-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.page-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* 筛选栏 */
.filter-bar {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.filter-group {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

/* 数据卡片 */
.data-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.data-card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.data-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.data-card-body {
    padding: var(--spacing-lg);
}

/* 侧边栏菜单el-badge修复 */
.sidebar .el-menu-item {
    display: flex;
    align-items: center;
}

.sidebar .el-menu-item .el-badge {
    margin-left: auto;
    display: flex;
    align-items: center;
}

.sidebar .el-menu-item .el-badge__content {
    position: static;
    transform: none;
}

/* 表格样式增强 */
.el-table {
    --el-table-border-color: var(--border-color);
    --el-table-header-bg-color: var(--card-bg);
    --el-table-tr-bg-color: transparent;
    --el-table-row-hover-bg-color: rgba(102, 126, 234, 0.05);
}

.el-table th.el-table__cell {
    background: var(--card-bg) !important;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.8125rem;
}

.el-table td.el-table__cell {
    color: var(--text-primary);
    font-size: 0.875rem;
}

/* 分页样式 */
.pagination-wrapper {
    display: flex;
    justify-content: center;
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--card-hover-bg);
    border-color: #667eea;
}

.btn-success {
    background: var(--success-gradient);
    color: white;
}

.btn-danger {
    background: var(--danger-gradient);
    color: white;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* ==================== 对话框样式 ==================== */
.el-dialog {
    border-radius: var(--radius-xl) !important;
    overflow: hidden;
}

.el-dialog__header {
    background: var(--card-bg);
    padding: var(--spacing-lg) var(--spacing-xl) !important;
    border-bottom: 1px solid var(--border-color);
}

.el-dialog__title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.el-dialog__body {
    padding: var(--spacing-xl) !important;
}

.el-dialog__footer {
    padding: var(--spacing-md) var(--spacing-xl) var(--spacing-lg) !important;
    border-top: 1px solid var(--border-color);
}

/* ==================== 表单样式 ==================== */
.el-input__wrapper {
    border-radius: var(--radius-md) !important;
    box-shadow: none !important;
    border: 1px solid var(--border-color) !important;
    transition: all var(--transition-fast) !important;
}

.el-input__wrapper:hover {
    border-color: #667eea !important;
}

.el-input__wrapper.is-focus {
    border-color: #667eea !important;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15) !important;
}

.el-select__wrapper {
    border-radius: var(--radius-md) !important;
}

/* ==================== 标签样式 ==================== */
.el-tag {
    border-radius: var(--radius-full) !important;
    font-weight: 500;
}

/* ==================== 通知面板 ==================== */
.notification-panel {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 360px;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    z-index: 1000;
    overflow: hidden;
}

.notification-panel-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.notification-panel-title {
    font-weight: 600;
    color: var(--text-primary);
}

.notification-panel-body {
    max-height: 400px;
    overflow-y: auto;
}

.notification-item {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.notification-item:hover {
    background: rgba(102, 126, 234, 0.05);
}

.notification-item.unread {
    background: rgba(102, 126, 234, 0.08);
}

.notification-item-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
}

.notification-item-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.notification-item-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.notification-item-content {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1400px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-actions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .navbar-tabs {
        display: none;
    }
    
    .global-search {
        display: none;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-actions-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ==================== 动画 ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.5s ease forwards;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* 统计卡片依次出现动画 */
.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }

/* ==================== 滚动条样式 ==================== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ==================== 加载状态 ==================== */
.loading-skeleton {
    background: linear-gradient(90deg, var(--border-color) 25%, var(--card-bg) 50%, var(--border-color) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ==================== 工具提示 ==================== */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--text-primary);
    color: var(--card-bg);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}