/* ============================================
   AI智能邮件分流与执行助理系统 - 高保真原型样式
   主题色: #86bc25(绿) #00A3E0(蓝) #DA291C(红) #FFCD00(黄) #BBBCBC(灰)
   ============================================ */

/* CSS变量定义 */
:root {
  /* 主题色 - 统一绿色主题 */
  --color-primary: #4caf50;
  --color-primary-light: #81c784;
  --color-primary-dark: #388e3c;
  --color-primary-bg: #e8f5e9;
  
  --color-secondary: #00A3E0;
  --color-secondary-light: #4dc4f0;
  --color-secondary-dark: #0077a3;
  --color-secondary-bg: #e6f6fc;
  
  --color-accent: #DA291C;
  --color-accent-light: #e85a50;
  --color-accent-dark: #a81f15;
  --color-accent-bg: #fde8e6;
  
  --color-warning: #FFCD00;
  --color-warning-light: #ffe066;
  --color-warning-dark: #cc9f00;
  --color-warning-bg: #fff8dc;
  
  --color-neutral: #BBBCBC;
  --color-neutral-light: #e8e8e8;
  --color-neutral-dark: #8a8a8a;
  
  /* 背景色 */
  --bg-primary: #ffffff;
  --bg-secondary: #f5f7fa;
  --bg-tertiary: #eef1f5;
  --bg-sidebar: #1a1a1a;
  
  /* 文字色 */
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --text-tertiary: #999999;
  --text-inverse: #ffffff;
  --text-muted: #bbbbbb;
  
  /* 边框 */
  --border-color: #e0e0e0;
  --border-radius-sm: 4px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  
  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 13px;
  --font-size-base: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  
  /* 侧边栏宽度 */
  --sidebar-width: 80px;
}

/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ============================================
   布局框架
   ============================================ */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-lg) 0;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  width: 100%;
  height: 100%;
}

.nav-spacer {
  flex: 1;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-sm);
  color: var(--text-muted);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
}

.nav-item:hover {
  color: var(--text-inverse);
  background: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
  color: var(--color-primary);
  background: rgba(134, 188, 37, 0.1);
  border-left-color: var(--color-primary);
}

.nav-item .nav-icon {
  width: 28px;
  height: 28px;
  margin-bottom: var(--spacing-xs);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-item .nav-icon svg {
  width: 24px;
  height: 24px;
}

.nav-item .nav-label {
  font-size: var(--font-size-xs);
  text-align: center;
}

.nav-item.profile {
  margin-top: auto;
}

.nav-item.profile .nav-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: 50%;
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-item.profile .nav-icon.settings-icon svg {
  width: 22px;
  height: 22px;
}

/* 主内容区 */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: var(--spacing-xl);
  min-height: 100vh;
  width: calc(100% - var(--sidebar-width));
}

/* ============================================
   统计看板页面
   ============================================ */
.dashboard-page {
  max-width: 1400px;
}

.page-header {
  margin-bottom: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.page-title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--text-primary);
}

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

.stat-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  transition: all 0.2s ease;
}

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

.stat-card.pending {
  border-left: 4px solid var(--color-primary);
}

.stat-card.reply {
  border-left: 4px solid var(--color-secondary);
}

.stat-card.notice {
  border-left: 4px solid var(--color-warning);
}

.stat-card.others {
  border-left: 4px solid var(--color-neutral);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-card.pending .stat-icon {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.stat-card.reply .stat-icon {
  background: var(--color-secondary-bg);
  color: var(--color-secondary);
}

.stat-card.notice .stat-icon {
  background: var(--color-warning-bg);
  color: var(--color-warning-dark);
}

.stat-card.others .stat-icon {
  background: rgba(187, 188, 188, 0.15);
  color: #888888;
}

.stat-icon svg {
  width: 24px;
  height: 24px;
}

.stat-content {
  flex: 1;
}

.stat-title {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

.stat-subtitle .highlight {
  color: var(--color-accent);
  font-weight: 500;
}

/* 图表区域 */
.charts-section {
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

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

.section-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.charts-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(240px, 0.9fr);
  gap: var(--spacing-xl);
  align-items: stretch;
}

/* 看板：左「数据分析+趋势」、右「占比」独立栏 */
.chart-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  align-self: stretch;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  background: var(--bg-primary);
  box-sizing: border-box;
}

.chart-panel-header {
  margin-bottom: var(--spacing-md);
  flex-shrink: 0;
}

.chart-panel-header .section-title {
  margin: 0;
}

.chart-panel--distribution {
  justify-content: center;
}

.chart-container {
  height: 320px;
  position: relative;
}

.chart-container-trend {
  flex: 1;
  min-height: 200px;
}

.chart-container:not(.chart-container-pie) canvas {
  max-height: 280px !important;
}

.chart-panel .chart-container:not(.chart-container-pie) {
  height: auto;
  flex: 1;
  min-height: 220px;
  display: flex;
  flex-direction: column;
}

.chart-panel .chart-container:not(.chart-container-pie) canvas {
  flex: 1;
  min-height: 180px;
  max-height: 280px !important;
}

/* 饼图：正方形容器 + Chart 保持 1:1，避免被拉成椭圆 */
.chart-container-pie {
  height: auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.chart-container-pie .pie-chart-surface {
  position: relative;
  width: min(100%, 400px);
  max-width: 100%;
  aspect-ratio: 1 / 1;
  margin: 0 auto;
}

.chart-container-pie .pie-chart-surface canvas {
  display: block;
  max-width: 100% !important;
  max-height: none !important;
}

.chart-title {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

/* ============================================
   邮件列表页面
   ============================================ */
.email-page {
  display: flex;
  gap: var(--spacing-lg);
  height: calc(100vh - var(--spacing-xl) * 2);
}

/* 邮件列表侧边栏 */
.email-list-panel {
  width: 380px;
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

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

/* 邮件列表侧缘折叠轨：默认隐藏；768–1366 见 tablet-ipad.css，宽屏 >1366 见 @media (min-width:1024px) 内嵌套 1367px */
.email-list-expand-btn {
  display: none;
}

/* 分组排序控制栏 */
.email-list-controls {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-secondary);
}

.control-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.control-group label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  white-space: nowrap;
}

.control-group select {
  padding: 4px 8px;
  font-size: var(--font-size-xs);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  cursor: pointer;
  min-width: 90px;
}

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

.sort-direction-btn {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: var(--bg-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  margin-left: auto;
}

.sort-direction-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.sort-direction-btn.asc svg {
  transform: rotate(180deg);
}

/* 分组标题分隔条 */
.email-group-header {
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  position: sticky;
  top: 0;
  z-index: 10;
  cursor: pointer;
  user-select: none;
}

.email-group-header:hover {
  background: var(--border-color);
}

.email-group-header .group-toggle-icon {
  font-size: 10px;
  color: var(--text-tertiary);
  transition: transform 0.2s;
}

.email-group-header .group-count {
  font-size: 11px;
  color: var(--text-tertiary);
  font-weight: normal;
  margin-left: auto;
}

.email-group-content {
  transition: all 0.2s ease;
}

.email-list-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.email-count {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

.email-list {
  flex: 1;
  overflow-y: auto;
}

.email-item {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.email-item:hover {
  background: var(--bg-secondary);
}

.email-item.active {
  background: var(--color-primary-bg);
  border-left: 3px solid var(--color-primary);
}

/* 状态标签带符号 */
.status-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  padding: 2px 6px;
  border-radius: 12px;
  font-weight: 500;
  line-height: 1.2;
  white-space: nowrap;
}

/* 状态颜色 - 通过类名控制 */
.status-tag.status-approved {
  background: #e8f5e9;
  color: #4caf50;
}

.status-tag.status-rejected {
  background: #ffebee;
  color: #f44336;
}

.status-tag.status-forwarded {
  background: #e3f2fd;
  color: #2196f3;
}

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

.email-item-sender {
  font-weight: 500;
  color: var(--text-primary);
  font-size: var(--font-size-base);
}

.email-item-time {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  white-space: nowrap;
}

.email-item-subject {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.email-item-preview {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-xs);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 未读邮件样式 */
.email-item.unread .email-item-sender,
.email-item.unread .email-item-subject,
.email-item.unread .email-item-preview {
  font-weight: 600;
  color: var(--text-primary);
}

.email-item-tags {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  align-items: center;
}

.email-tag {
  font-size: var(--font-size-xs);
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 20px;
  line-height: 1;
}

.email-tag.category-pending {
  background: var(--color-primary-bg);
  color: var(--color-primary-dark);
}

/* 可点击的已读/未读标签 */
.email-tag.read-status-tag {
  transition: all 0.2s ease;
}

.email-tag.read-status-tag:hover {
  opacity: 0.8;
  transform: scale(1.05);
}

.email-tag.category-reply {
  background: var(--color-secondary-bg);
  color: var(--color-secondary-dark);
}

.email-tag.category-notice {
  background: var(--color-warning-bg);
  color: var(--color-warning-dark);
}

/* 审批类标签 */
.email-tag.category-approval {
  background: var(--color-primary-bg);
  color: var(--color-primary-dark);
}

/* 其它类标签 */
.email-tag.category-other {
  background: #f0f0f0;
  color: #666;
}

/* 状态标签统一气泡样式 */
.status-tag {
  font-size: var(--font-size-xs);
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
}

.status-tag.status-approved,
.email-tag.status-approved {
  background: #e8f5e9;
  color: #4caf50;
}

.status-tag.status-rejected,
.email-tag.status-rejected {
  background: #ffebee;
  color: #f44336;
}

.status-tag.status-forwarded,
.email-tag.status-forwarded {
  background: #e3f2fd;
  color: #2196f3;
}

/* 未回复标签样式（灰色） */
.email-tag.reply-pending {
  background: #f5f5f5;
  color: #999;
}

.email-tag.priority-high {
  background: var(--color-accent-bg);
  color: var(--color-accent);
}

/* 附件标识 */
.email-tag.attachment-tag {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: 2px 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 20px;
}

/* 邮件详情面板 */
.email-detail-panel {
  flex: 1;
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.email-detail-empty {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: var(--font-size-lg);
}

.email-detail-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.email-detail-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.email-detail-meta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.email-detail-meta-row {
  display: flex;
  gap: var(--spacing-sm);
}

.email-detail-meta-label {
  color: var(--text-tertiary);
  min-width: 60px;
}

.email-detail-meta-value {
  color: var(--text-primary);
}

.email-detail-attachments {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px dashed var(--border-color);
}

.attachment-list {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-top: var(--spacing-xs);
}

.attachment-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.email-detail-content {
  flex: 1;
  padding: var(--spacing-lg);
  overflow-y: auto;
}

.email-original {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.email-original-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color);
}

.email-original-content {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--text-secondary);
  white-space: pre-wrap;
}

/* AI智能摘要卡片 */
.ai-summary-card {
  background: linear-gradient(135deg, var(--color-primary-bg) 0%, var(--bg-primary) 100%);
  border: 1px solid var(--color-primary);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.ai-summary-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.ai-summary-icon {
  width: 24px;
  height: 24px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-inverse);
  font-size: var(--font-size-xs);
}

.ai-summary-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary-dark);
}

.ai-summary-content {
  font-size: var(--font-size-base);
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.ai-summary-keyinfo {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.keyinfo-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
}

.keyinfo-label {
  color: var(--text-tertiary);
}

.keyinfo-value {
  color: var(--text-primary);
  font-weight: 500;
}

.keyinfo-value.amount {
  color: var(--color-accent);
  font-size: var(--font-size-lg);
  font-weight: 600;
}

/* 快捷操作按钮 */
.quick-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.action-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.action-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.action-btn.approve {
  background: var(--color-primary);
  color: var(--text-inverse);
}

.action-btn.reject {
  background: var(--color-accent);
  color: var(--text-inverse);
}

.action-btn.request {
  background: var(--color-warning);
  color: var(--text-primary);
}

.action-btn.reply {
  background: var(--color-secondary);
  color: var(--text-inverse);
}

.action-btn.forward {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.action-btn.archive {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

/* AI回复草稿 */
.ai-reply-section {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

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

.ai-reply-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

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

.ai-reply-content {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.ai-reply-subject {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.ai-reply-body {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--text-secondary);
}

/* ============================================
   设置页面
   ============================================ */
.settings-page {
  max-width: 1200px;
}

.settings-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--spacing-sm);
}

.settings-tab {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  background: none;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.settings-tab:hover {
  background: var(--bg-secondary);
}

.settings-tab.active {
  background: var(--color-primary);
  color: var(--text-inverse);
  border-color: var(--color-primary);
}

.settings-content {
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  min-height: calc(100vh - 160px);
  width: 100%;
}

.settings-form {
  max-width: 800px;
}

/* 模型配置两列布局 */
.model-config-form {
  width: 100%;
}

.model-config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 12px;
}

.model-config-left,
.model-config-right {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  padding: 12px 16px;
  border: 1px solid var(--border-color);
}

.config-section {
  height: 100%;
}

.section-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--color-primary);
}

.form-group.compact {
  margin-bottom: 10px;
}

.form-group.compact .form-label {
  font-size: var(--font-size-sm);
  margin-bottom: 4px;
}

.form-group.compact .form-input,
.form-group.compact .form-select {
  padding: 6px 10px;
  font-size: var(--font-size-sm);
}

.form-group.compact .form-hint {
  font-size: 11px;
  margin-top: 2px;
}

.range-with-value {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.range-with-value input[type="range"] {
  flex: 1;
}

.range-value {
  min-width: 36px;
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  padding: 2px 8px;
  border-radius: var(--border-radius-sm);
}

/* 响应式：小屏幕单列 */
@media (max-width: 900px) {
  .model-config-grid {
    grid-template-columns: 1fr;
  }
}

/* 邮件服务器配置两列布局 */
.email-config-form {
  width: 100%;
}

.email-config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 12px;
}

.email-config-left,
.email-config-right {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  padding: 12px 16px;
  border: 1px solid var(--border-color);
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.checkbox-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* 响应式：小屏幕单列 */
@media (max-width: 900px) {
  .email-config-grid {
    grid-template-columns: 1fr;
  }
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background: var(--bg-primary);
  transition: all 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(134, 188, 37, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
  font-family: var(--font-family);
  line-height: 1.6;
}

.form-hint {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  margin-top: var(--spacing-xs);
}

.form-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

.btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--text-inverse);
}

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

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

.btn-secondary:hover {
  background: var(--bg-tertiary);
}

/* 提示词配置 - 两列卡片网格，全屏铺满 */
.prompt-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  width: 100%;
}

.prompt-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
  height: calc((100vh - 200px) / 2);
  min-height: 280px;
}

.prompt-card:hover {
  box-shadow: var(--shadow-md);
}

.prompt-card-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 8px 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
  justify-content: space-between;
  min-height: 44px;
}

.prompt-card-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-left: auto;
}

.btn-sm {
  padding: 2px 8px;
  font-size: 11px;
  border-radius: var(--border-radius-sm);
  height: 24px;
  line-height: 1;
}

.prompt-card-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.prompt-card-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

.prompt-card-content {
  padding: 8px;
  flex: 1;
  overflow: hidden;
  display: flex;
}

.prompt-textarea {
  width: 100%;
  height: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 12px;
  line-height: 1.5;
  resize: none;
  background: var(--bg-secondary);
  overflow-y: auto;
}

.prompt-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--bg-primary);
}

/* 响应式：小屏幕单列 */
@media (max-width: 1200px) {
  .prompt-cards-grid {
    grid-template-columns: 1fr;
  }
  
  .prompt-card {
    height: auto;
    min-height: 200px;
  }
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1200px) {
  .stats-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .email-page {
    flex-direction: column;
    height: auto;
  }
  
  .email-list-panel {
    width: 100%;
    max-height: 400px;
  }
}

/* 平板 768–1366px：不用「列表全宽 + 上下堆叠」（含 iPad Air 横屏 1180 等）；由 tablet-ipad.css / mobile 平板断点接管 */
@media (max-width: 1200px) and (min-width: 768px) and (max-width: 1366px) {
  .email-page {
    flex-direction: unset;
    height: unset;
  }

  .email-list-panel {
    width: unset;
    max-height: unset;
  }
}

/* 仅手机：看板图表上下堆叠；PC 与平板保持左右两栏 */
@media (max-width: 767px) {
  .dashboard-page .charts-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--spacing-md);
  }

  .dashboard-page .chart-panel {
    padding: var(--spacing-md);
  }

  .dashboard-page .chart-panel--distribution {
    justify-content: flex-start;
  }
}

/* 768px：窄屏侧栏；统计卡片不设单列，避免 iPad 竖屏 768 宽被压成 1×4（与上方 1200px 断点的 2 列一致） */
@media (max-width: 768px) {
  .sidebar {
    width: 60px;
  }
  
  .nav-item .nav-label {
    display: none;
  }
  
  .main-content {
    margin-left: 60px;
    padding: var(--spacing-md);
  }
}

/* ============================================
   动画效果
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.3s ease-out;
}

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

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}

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

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

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

::-webkit-scrollbar-thumb:hover {
  background: var(--color-neutral-dark);
}

/* ============================================
   加载状态和错误处理样式
   ============================================ */

/* 加载动画 */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 邮件列表加载状态 */
.email-list-loading,
.email-list-empty,
.email-list-error {
  padding: var(--spacing-xl);
  text-align: center;
  color: var(--text-tertiary);
  font-size: var(--font-size-base);
}

.email-list-error {
  color: var(--color-accent);
}

/* 邮件详情加载状态 */
.email-detail-loading,
.email-detail-empty,
.email-detail-error {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: var(--font-size-lg);
}

.email-detail-error {
  color: var(--color-accent);
}

/* 回复草稿加载状态 */
.ai-reply-loading {
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--text-tertiary);
  font-size: var(--font-size-base);
}

/* 系统状态卡片 */
.system-status-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.status-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: all 0.2s ease;
}

.status-card:hover {
  box-shadow: var(--shadow-md);
}

.status-card.connected {
  border-left: 4px solid var(--color-primary);
}

.status-card.disconnected {
  border-left: 4px solid var(--color-neutral);
}

.status-card.error {
  border-left: 4px solid var(--color-accent);
}

.status-card.loading {
  border-left: 4px solid var(--color-secondary);
}

.status-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.status-card.connected .status-icon {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.status-card.disconnected .status-icon {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
}

.status-card.error .status-icon {
  background: var(--color-accent-bg);
  color: var(--color-accent);
}

.status-card.loading .status-icon {
  background: var(--color-secondary-bg);
  color: var(--color-secondary);
}

.status-info {
  flex: 1;
}

.status-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.status-value {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

/* ============================================
   邮件详情面板新布局 - 上下分区
   ============================================ */

/* 邮件详情面板新布局 */
.email-detail-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* 动态详情根节点：上下各占右栏至多一半，保证邮件正文与 AI 助手各至少约 50% */
.email-detail-panel > #emailDetailContent {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  height: 100%;
}

#emailDetailContent > .email-content-area {
  flex: 1 1 50%;
  min-height: 0;
  height: auto;
  max-height: none;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-bottom: 2px solid var(--border-color);
}

#emailDetailContent > .ai-assistant-zone {
  flex: 0 1 50%;
  max-height: 50%;
  min-height: 0;
  height: auto;
  box-sizing: border-box;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* 上方邮件内容区（兼容：无 #emailDetailContent 包裹时） */
.email-content-area {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-bottom: 2px solid var(--border-color);
  flex: 1 1 50%;
  min-height: 0;
}

.email-content-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-primary);
  position: relative;
}

.reclassify-btn {
  position: absolute;
  bottom: 8px;
  right: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  color: var(--text-tertiary);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.email-content-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
  padding-right: 140px;
}

.email-content-time {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 13px;
  color: var(--text-secondary);
}

.email-content-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
  font-size: 13px;
}

.email-content-meta-label {
  color: var(--text-secondary);
}

.email-content-meta-value {
  color: var(--text-primary);
}

.email-content-body {
  flex: 1;
  padding: 16px 20px;
  overflow-y: auto;
  background: var(--bg-secondary);
}

.email-content-body-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

/* 附件列表样式 - 紧凑行内展示 */
.email-attachments {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

.attachments-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
}

.attachments-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.attachment-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.attachment-item:hover {
  background: var(--color-primary-bg);
  border-color: var(--color-primary);
}

.attachment-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.attachment-icon svg {
  width: 14px;
  height: 14px;
}

.attachment-name {
  font-size: 12px;
  color: var(--text-primary);
  white-space: nowrap;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 下方AI摘要区 */
.email-ai-area {
  flex: 1;
  padding: 16px 20px;
  overflow-y: auto;
  background: var(--bg-primary);
}

.ai-summary-card-new {
  background: linear-gradient(135deg, #f8fff8 0%, #f0f8f0 100%);
  border: 2px solid var(--color-primary);
  border-radius: var(--border-radius);
  padding: 16px;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
}

.ai-summary-card-new .ai-summary-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.ai-summary-card-new .ai-summary-icon {
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: var(--text-inverse);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}

.ai-summary-card-new .ai-summary-title {
  font-weight: 600;
  color: var(--color-primary);
}

.ai-summary-card-new .ai-summary-content {
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.ai-summary-card-new .ai-summary-keyinfo {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 16px;
  padding: 12px;
  background: rgba(134, 188, 37, 0.1);
  border-radius: var(--border-radius-sm);
}

.ai-summary-card-new .quick-actions {
  margin-top: auto;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* 邮件正文文本样式 - 保留换行格式 */
.email-body-text {
  white-space: pre-wrap;
  line-height: 1.6;
  font-family: inherit;
}

/* ============================================
   新布局样式 - 参考设计图 (2025-03-27 更新)
   ============================================ */

/* 邮件详情头部新样式 */
.email-detail-header-new {
  padding: 14px 20px 10px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-primary);
}

.email-detail-header-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 6px;
}

.email-detail-subject {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-detail-time {
  font-size: 11.5px;
  color: var(--text-tertiary);
  white-space: nowrap;
  flex-shrink: 0;
}

.email-detail-meta-row {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
}

.email-detail-meta-item {
  display: flex;
  gap: 4px;
  color: #6b7280;
}

.btn-reclassify {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: #9ca3af;
  cursor: pointer;
  transition: all 0.15s;
  margin-left: auto;
  flex-shrink: 0;
}

.btn-reclassify:hover {
  background: #f3f4f6;
  border-color: #9ca3af;
  color: #374151;
}

.btn-reclassify svg {
  width: 12px;
  height: 12px;
}

/* ============================================
   AI 智能助手区域 — 功能化设计 (新)
   ============================================ */

.ai-assistant-zone {
  margin: 8px 16px 16px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  border-top: 3px solid #22c55e;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* AI助手顶部标题栏 */
.ai-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: #fafbfc;
  border-bottom: 1px solid #eaecf0;
}

.ai-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-title-icon {
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-title-icon svg {
  width: 12px;
  height: 12px;
  color: #fff;
}

.ai-title {
  font-size: 13px;
  font-weight: 600;
  color: #1a1a2e;
}

.ai-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* AI功能按钮 - 带边框样式 */
.ai-header-actions .ai-btn,
.ai-header-actions button {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: #fff;
  border: 1px solid #d1d5db;
  color: #374151;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.ai-header-actions .ai-btn:hover,
.ai-header-actions button:hover {
  background: #f9fafb;
  border-color: #9ca3af;
}

/* 状态图标 - 紧凑样式 */
.ai-header-actions .status-icon {
  display: inline-flex;
  width: 14px;
  height: 14px;
  font-size: 10px;
  border-radius: 50%;
  margin-right: 4px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* 未完成状态 - 灰色叉号 */
.ai-header-actions .status-icon.pending {
  color: #9ca3af;
  border: 1px solid #9ca3af;
  background: transparent;
}

/* 已完成状态 - 绿色对号 */
.ai-header-actions .status-icon.completed {
  color: #10b981;
  border: 1px solid #10b981;
  background: #d1fae5;
}

/* AI功能按钮 */
.ai-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  border: 1px solid transparent;
  background: transparent;
}

.ai-btn svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

.ai-btn-ghost {
  background: transparent;
  border-color: transparent;
  color: #6b7280;
}

.ai-btn-ghost:hover {
  background: #f3f4f6;
  color: #374151;
}

.ai-btn-outline {
  background: #fff;
  border-color: #d1d5db;
  color: #374151;
}

.ai-btn-outline:hover {
  background: #f9fafb;
  border-color: #9ca3af;
}

.ai-btn-primary {
  background: #22c55e;
  border-color: #22c55e;
  color: #fff;
}

.ai-btn-primary:hover {
  background: #16a34a;
  border-color: #16a34a;
}

/* 翻译下拉包裹 */
.translate-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.translate-wrap button,
.translate-wrap .ai-btn {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: #fff;
  border: 1px solid #d1d5db;
  color: #374151;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.translate-wrap button:hover,
.translate-wrap .ai-btn:hover {
  background: #f9fafb;
  border-color: #9ca3af;
}

.translate-wrap select {
  font-size: 12px;
  padding: 6px 8px;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  background: #fff;
  color: #374151;
  outline: none;
  cursor: pointer;
}

.translate-wrap select:focus {
  border-color: #22c55e;
}

/* AI编辑区 */
.ai-content-area {
  padding: 10px 14px 0;
  background: #fff;
}

.ai-textarea {
  width: 100%;
  flex: 1;
  min-height: 0;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 12.5px;
  color: #374151;
  line-height: 1.6;
  resize: none;
  outline: none;
  background: #fafbfc;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
  overflow-y: auto;
}

.ai-textarea:focus {
  border-color: #86efac;
  box-shadow: 0 0 0 3px rgba(34,197,94,0.1);
  background: #fff;
}

.ai-textarea::placeholder {
  color: #c4c9d4;
}

/* AI助手底部工具栏 */
.ai-footer {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  padding: 10px 14px;
  gap: 10px;
}

.ai-footer-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-label {
  font-size: 11.5px;
  color: #6b7280;
  white-space: nowrap;
}

/* 润色风格下拉框 - 与翻译方向样式一致 */
.tone-select {
  font-size: 12px;
  padding: 6px 8px;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  color: #374151;
  background: #fff;
  outline: none;
  cursor: pointer;
  height: auto;
  line-height: 1.4;
}

.tone-select:focus {
  border-color: #9ca3af;
}

/* 润色风格包裹 - 与translate-wrap一致 */
.polish-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-footer-right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.char-count {
  font-size: 10.5px;
  color: #9ca3af;
}

/* ============================================
   审批操作栏样式（待审批页面专用）
   ============================================ */

.approval-action-bar {
  margin: 0 16px 8px;
  padding: 12px 16px;
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
  border: 1px solid #bbf7d0;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.approval-action-bar .bar-title {
  font-size: 13px;
  font-weight: 600;
  color: #166534;
  display: flex;
  align-items: center;
  gap: 6px;
}

.approval-action-bar .bar-title svg {
  width: 16px;
  height: 16px;
  color: #22c55e;
}

.approval-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
}

.approval-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
}

.approval-btn svg {
  width: 14px;
  height: 14px;
}

.approval-btn.approve {
  background: #22c55e;
  color: #fff;
  border-color: #22c55e;
}

.approval-btn.approve:hover:not(:disabled) {
  background: #16a34a;
  border-color: #16a34a;
}

.approval-btn.reject {
  background: #fff;
  color: #ef4444;
  border-color: #ef4444;
}

.approval-btn.reject:hover:not(:disabled) {
  background: #fef2f2;
}

.approval-btn.forward {
  background: #fff;
  color: #3b82f6;
  border-color: #3b82f6;
}

.approval-btn.forward:hover:not(:disabled) {
  background: #eff6ff;
}

.approval-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 内联审批按钮样式（AI助手标题栏内） */
.approval-buttons-inline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.approval-buttons-inline .approval-btn {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: #fff;
  border: 1px solid #d1d5db;
  color: #374151;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.approval-buttons-inline .approval-btn:hover {
  background: #f9fafb;
}

/* 批准按钮 - 绿色边框 */
.approval-buttons-inline .approval-btn.approve {
  border-color: #4caf50;
  color: #4caf50;
}

.approval-buttons-inline .approval-btn.approve:hover {
  background: #f0fdf4;
}

/* 驳回按钮 - 红色边框 */
.approval-buttons-inline .approval-btn.reject {
  border-color: #f44336;
  color: #f44336;
}

.approval-buttons-inline .approval-btn.reject:hover {
  background: #fef2f2;
}

/* 转审按钮 - 蓝色边框 */
.approval-buttons-inline .approval-btn.forward {
  border-color: #2196f3;
  color: #2196f3;
}

.approval-buttons-inline .approval-btn.forward:hover {
  background: #eff6ff;
}

/* 已审批状态的按钮高亮样式 */
.approval-buttons-inline .approval-btn.approve.active {
  background: #4caf50;
  color: #fff;
  border-color: #4caf50;
  opacity: 1 !important;
}

.approval-buttons-inline .approval-btn.reject.active {
  background: #f44336;
  color: #fff;
  border-color: #f44336;
  opacity: 1 !important;
}

.approval-buttons-inline .approval-btn.forward.active {
  background: #2196f3;
  color: #fff;
  border-color: #2196f3;
  opacity: 1 !important;
}

/* 审批按钮显示小图标 */
.approval-buttons-inline .approval-btn svg {
  display: inline-block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ============================================
   附件列表样式（新）
   ============================================ */

.attachment-list-new {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 20px 12px;
}

.attachment-item-new {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px 5px 7px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: #fafbfc;
  cursor: pointer;
  transition: all 0.15s;
  max-width: 190px;
}

.attachment-item-new:hover {
  border-color: #86efac;
  background: #f0fdf4;
}

.attachment-icon-new {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 8.5px;
  font-weight: 700;
}

.attachment-icon-new.pdf {
  background: #fee2e2;
  color: #ef4444;
}

.attachment-icon-new.xlsx {
  background: #dcfce7;
  color: #16a34a;
}

.attachment-icon-new.docx {
  background: #dbeafe;
  color: #3b82f6;
}

.attachment-icon-new.zip {
  background: #fef9c3;
  color: #ca8a04;
}

.attachment-icon-new.image {
  background: #f3e8ff;
  color: #9333ea;
}

.attachment-info-new {
  overflow: hidden;
}

.attachment-name-new {
  font-size: 11px;
  font-weight: 500;
  color: #374151;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 110px;
}

.attachment-size-new {
  font-size: 9.5px;
  color: #9ca3af;
}

/* 邮件正文样式 */
.email-context {
  padding: 14px 20px 10px;
  color: #374151;
  font-size: 13px;
  line-height: 1.75;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.email-context p {
  margin-bottom: 10px;
}

.email-context p:last-child {
  margin-bottom: 0;
}

/* 响应式调整 */
@media (max-width: 1200px) {
  .system-status-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .system-status-cards {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   PC 桌面优先：1920×1080 一屏内可见可用（宽 ≥1024px）
   ============================================ */
@media (min-width: 1024px) {
  html {
    height: 100%;
  }

  body {
    height: 100%;
    overflow: hidden;
  }

  .app-container {
    height: 100%;
    max-height: 100dvh;
    min-height: 0;
    overflow: hidden;
  }

  .sidebar {
    max-height: 100dvh;
  }

  .main-content {
    min-height: 0 !important;
    height: 100%;
    max-height: 100dvh;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-lg) var(--spacing-xl);
    box-sizing: border-box;
  }

  /* 统计看板 */
  .dashboard-page {
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: calc(100dvh - 2 * var(--spacing-lg));
    max-height: calc(100dvh - 2 * var(--spacing-lg));
  }

  .dashboard-page .page-header {
    flex-shrink: 0;
    margin-bottom: var(--spacing-md);
  }

  .dashboard-page .stats-cards {
    flex-shrink: 0;
    margin-bottom: var(--spacing-md);
  }

  .dashboard-page .charts-section {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg);
    overflow: hidden;
  }

  .dashboard-page .charts-grid {
    flex: 1;
    min-height: 0;
    align-items: stretch;
    align-content: stretch;
    grid-template-rows: minmax(0, 1fr);
    height: 100%;
  }

  .dashboard-page .chart-panel {
    min-height: 0;
  }

  .dashboard-page .chart-panel--distribution .chart-container-pie {
    flex: 1 1 auto;
    min-height: 0;
    justify-content: center;
  }

  .dashboard-page .chart-container:not(.chart-container-pie) {
    height: auto !important;
    min-height: 180px;
    display: flex;
    flex-direction: column;
  }

  .dashboard-page .chart-container:not(.chart-container-pie) canvas {
    flex: 1;
    min-height: 140px;
    max-height: none !important;
  }

  .dashboard-page .chart-container-pie {
    align-items: center;
  }

  .dashboard-page .chart-container-pie .pie-chart-surface {
    width: min(100%, min(380px, 38vh));
    flex: 0 0 auto;
  }

  /* 邮件列表 + 详情 */
  .email-page {
    height: calc(100dvh - 2 * var(--spacing-lg) - 2px) !important;
    max-height: calc(100dvh - 2 * var(--spacing-lg) - 2px) !important;
    min-height: 0 !important;
  }

  /* 与全局一致：正文区 ≥ 约 50%，AI 区 ≤ 50% */
  #emailDetailContent > .email-content-area {
    flex: 1 1 50% !important;
    min-height: 0 !important;
    height: auto !important;
    max-height: none !important;
  }

  .email-detail-panel {
    min-height: 0;
  }

  .email-detail-panel > #emailDetailContent {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 100%;
  }

  #emailDetailContent > .ai-assistant-zone {
    flex: 0 1 50% !important;
    max-height: 50% !important;
    min-height: 0 !important;
    height: auto !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
  }

  #emailDetailContent > .ai-assistant-zone .ai-summary-area,
  #emailDetailContent > .ai-assistant-zone .ai-reply-area {
    flex: 1 1 0 !important;
    height: auto !important;
    min-height: 96px !important;
    max-height: none !important;
  }

  #emailDetailContent > .ai-assistant-zone .ai-footer {
    flex-shrink: 0;
  }

  /* 设置页 */
  .settings-content {
    min-height: 0 !important;
    max-height: calc(100dvh - 132px);
    overflow-y: auto;
  }

  .settings-page .manage-grid {
    height: calc(100dvh - 200px) !important;
    max-height: calc(100dvh - 180px) !important;
    align-items: stretch;
    min-height: 0;
  }

  .prompt-card {
    height: auto !important;
    max-height: calc((100dvh - 200px) / 2);
    min-height: 180px;
  }

  /* 提示词新卡片高度由 settings.html 内 #promptConfig 网格均分，不在此限制 */

  /* 宽屏 PC（>1366，超出 tablet-ipad 范围）：邮件列表折叠轨 + 列表宽度收折，与平板逻辑一致 */
  @media (min-width: 1367px) {
    .main-content:has(.email-page) {
      padding-left: 0 !important;
      padding-right: var(--spacing-xl);
      padding-top: var(--spacing-lg);
      padding-bottom: var(--spacing-lg);
      box-sizing: border-box;
    }

    .email-page {
      padding-left: 16px !important;
      gap: 0 !important;
      align-items: stretch !important;
    }

    .email-page .email-list-expand-btn {
      display: flex !important;
      position: fixed !important;
      left: var(--sidebar-width) !important;
      top: 50% !important;
      transform: translateY(-50%) !important;
      width: 16px !important;
      min-width: 16px !important;
      height: 80px !important;
      margin: 0 !important;
      padding: 0 !important;
      border-radius: 0 6px 6px 0 !important;
      border: 1px solid var(--border-color) !important;
      border-left: none !important;
      box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1) !important;
      z-index: 250 !important;
      background: var(--bg-primary) !important;
      align-items: center !important;
      justify-content: center !important;
      cursor: pointer !important;
    }

    .email-page .email-list-expand-btn svg {
      width: 12px !important;
      height: 12px !important;
      flex-shrink: 0 !important;
      transition: transform 0.25s ease !important;
    }

    body.email-list-collapsed .email-page .email-list-expand-btn svg {
      transform: rotate(180deg) !important;
    }

    .email-page .email-list-header .email-list-toggle {
      display: none !important;
    }

    .email-list-panel {
      flex: 0 0 auto !important;
      height: 100% !important;
      min-height: 0 !important;
      max-height: none !important;
      border-bottom: none !important;
      border-right: 1px solid var(--border-color) !important;
      transition: width 0.25s ease, min-width 0.25s ease, max-width 0.25s ease, border-color 0.25s ease !important;
      width: 380px !important;
      min-width: 380px !important;
      max-width: 380px !important;
    }

    .email-list-panel.collapsed {
      width: 0 !important;
      min-width: 0 !important;
      max-width: 0 !important;
      border-right: none !important;
      overflow: hidden !important;
      padding: 0 !important;
      margin: 0 !important;
    }

    .email-list-panel.collapsed .email-list-header,
    .email-list-panel.collapsed .email-list-controls,
    .email-list-panel.collapsed .email-list {
      opacity: 0 !important;
      pointer-events: none !important;
    }

    .email-detail-panel {
      flex: 1 1 auto !important;
      min-width: 0 !important;
      min-height: 0 !important;
      height: 100% !important;
      width: auto !important;
      max-height: none !important;
    }
  }
}