/**
 * Protocol Agent 样式
 * 100%还原原型图0119.html的精致设计
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

/* ============================================ */
/* 全局样式 - 全屏覆盖（与ChatWorkspace一致） */
/* ============================================ */
.protocol-agent-page {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  overflow: hidden;
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  background: #FFFFFF;
}

/* ============================================ */
/* 可折叠侧边栏 - Gemini 风格 */
/* ============================================ */
.sidebar {
  display: flex;
  background: #F9FAFB;
  border-right: 1px solid #E5E7EB;
  transition: width 0.3s ease;
  position: relative;
  z-index: 10;
}

.sidebar.collapsed {
  width: 48px;
}

.sidebar.expanded {
  width: 280px;
}

/* 图标栏（折叠时可见） */
.sidebar-icons {
  width: 48px;
  display: flex;
  flex-direction: column;
  padding: 8px 0;
  background: #F9FAFB;
  border-right: 1px solid #E5E7EB;
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  color: #6B7280;
  transition: all 0.2s;
  margin: 0 4px 4px 4px;
}

.icon-btn:hover {
  background: #E5E7EB;
  color: #111827;
}

.icon-btn.menu-btn {
  margin-bottom: 12px;
}

.icon-btn.new-btn {
  background: #6366F1;
  color: white;
  margin-bottom: 12px;
}

.icon-btn.new-btn:hover {
  background: #4F46E5;
}

/* 最近会话图标 */
.recent-icons {
  flex: 1;
  overflow-y: auto;
  padding-top: 8px;
}

.icon-btn.conv-icon {
  opacity: 0.6;
}

.icon-btn.conv-icon:hover {
  opacity: 1;
}

.icon-btn.conv-icon.active {
  background: #E0E7FF;
  color: #6366F1;
  opacity: 1;
}

.sidebar-bottom {
  padding-top: 8px;
  border-top: 1px solid #E5E7EB;
}

/* 侧边栏内容（展开时可见） */
.sidebar-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.sidebar.expanded .sidebar-content {
  opacity: 1;
  pointer-events: auto;
}

.sidebar.collapsed .sidebar-content {
  display: none;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid #E5E7EB;
}

.sidebar-title {
  font-size: 14px;
  font-weight: 600;
  color: #111827;
}

/* 返回按钮 */
.back-to-hub-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background: none;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: #6B7280;
  transition: all 0.2s;
}

.back-to-hub-btn:hover {
  background: #F3F4F6;
  color: #111827;
}

/* 新建对话按钮 */
.new-chat-btn {
  margin: 6px 10px;
  padding: 6px 10px;
  background: #6366F1;
  color: white;
  border: none;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.2s;
  width: auto;
}

.new-chat-btn.compact {
  padding: 5px 10px;
}

.new-chat-btn:hover {
  background: #4F46E5;
}

/* 会话列表 */
.conversations-list {
  flex: 1;
  min-height: 0; /* 关键：允许 flex 子元素收缩 */
  overflow-y: auto;
  padding: 8px;
}

.conv-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  color: #6B7280;
  font-size: 13px;
  position: relative;
}

.conv-item:hover {
  background: #F3F4F6;
}

.conv-item.active {
  background: #EEF2FF;
  color: #6366F1;
}

.conv-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conv-delete {
  opacity: 0;
  background: none;
  border: none;
  padding: 4px;
  border-radius: 4px;
  cursor: pointer;
  color: #EF4444;
  transition: all 0.2s;
}

.conv-item:hover .conv-delete {
  opacity: 1;
}

.conv-delete:hover {
  background: #FEE2E2;
}

/* ============================================ */
/* 主工作区 */
/* ============================================ */
.workspace {
  flex: 1;
  min-height: 0; /* 关键：允许 flex 子元素收缩 */
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  overflow: hidden;
}

/* 顶部导航 */
.workspace-header {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-bottom: 1px solid #E5E7EB;
  background: #FFFFFF;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  z-index: 5;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.back-btn {
  padding: 8px;
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  color: #6B7280;
  transition: all 0.2s;
}

.back-btn:hover {
  background: #F3F4F6;
  color: #111827;
}

.agent-info {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  gap: 10px;
  flex-shrink: 0;
}

.agent-icon {
  width: 28px;
  height: 28px;
  min-width: 28px;
  background: #6366F1;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.agent-meta {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  gap: 8px;
  flex-shrink: 0;
}

.agent-name {
  font-size: 14px;
  font-weight: 700;
  color: #111827;
  margin: 0;
  white-space: nowrap;
  line-height: 1;
}

.agent-status {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: #10B981;
  white-space: nowrap;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: #10B981;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

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

.status-text {
  font-size: 12px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.current-stage-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: #F9FAFB;
  border: 1px solid #E5E7EB;
  border-radius: 20px;
}

.badge-label {
  font-size: 12px;
  font-weight: 500;
  color: #6B7280;
}

.badge-value {
  font-size: 12px;
  font-weight: 700;
  color: #6366F1;
  background: #EEF2FF;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid #C7D2FE;
}

/* 工作区主体 */
.workspace-body {
  flex: 1;
  min-height: 0; /* 关键：允许 flex 子元素收缩 */
  display: flex;
  overflow: hidden;
}

/* ============================================ */
/* 聊天区域 */
/* ============================================ */
.chat-area {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  position: relative;
  overflow: hidden;
}

/* 聊天容器 - 使用 pa- 前缀避免与共享组件 ChatContainer 冲突 */
.pa-chat-container {
  flex: 1;
  min-height: 0; /* 关键：允许 flex 子元素收缩 */
  overflow-y: auto;
  padding: 24px;
  padding-bottom: 120px;
}

/* 加载历史消息 */
.loading-history {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 20px;
  color: #6B7280;
  font-size: 13px;
}

.loading-history .loading-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid #E5E7EB;
  border-top-color: #6366F1;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* 消息行 */
.message-row {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.message-row.user-row {
  flex-direction: row-reverse;
}

.message-row.assistant-row {
  flex-direction: row;
}

.message-row.system-row {
  justify-content: center;
  margin: 16px 0;
}

/* 头像 */
.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.assistant-avatar {
  background: #EEF2FF;
  color: #6366F1;
}

.user-avatar {
  background: #E5E7EB;
  color: #6B7280;
}

.reflexion-avatar {
  background: #F3E8FF;
  color: #9333EA;
  border: 1px solid #E9D5FF;
}

/* 消息内容 */
.message-content {
  max-width: 80%;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.message-meta {
  font-size: 12px;
  color: #9CA3AF;
  padding: 0 4px;
}

.message-meta.reflexion-meta {
  color: #9333EA;
  font-weight: 700;
}

/* 聊天气泡 */
.chat-bubble {
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.6;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  white-space: pre-wrap;
  word-break: break-word;
}

/* Markdown 格式支持 */
.chat-bubble h1,
.chat-bubble h2,
.chat-bubble h3 {
  margin: 12px 0 6px 0;
  font-weight: 700;
  color: #111827;
}

.chat-bubble h1 { font-size: 1.25em; }
.chat-bubble h2 { font-size: 1.15em; }
.chat-bubble h3 { font-size: 1.05em; }

.chat-bubble p {
  margin: 6px 0;
}

.chat-bubble ul,
.chat-bubble ol {
  margin: 6px 0;
  padding-left: 24px;
}

.chat-bubble ul {
  list-style-type: disc;
}

.chat-bubble ol {
  list-style-type: decimal;
}

.chat-bubble li {
  margin: 3px 0;
  display: list-item;
}

.chat-bubble strong,
.chat-bubble b {
  font-weight: 700;
  color: #1F2937;
}

.chat-bubble em,
.chat-bubble i {
  font-style: italic;
}

.chat-bubble code {
  background: #F3F4F6;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Monaco', 'Consolas', monospace;
  font-size: 0.9em;
  color: #6366F1;
}

.chat-bubble pre {
  background: #1F2937;
  color: #F9FAFB;
  padding: 12px 16px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 12px 0;
}

.chat-bubble pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

.chat-bubble blockquote {
  border-left: 4px solid #6366F1;
  margin: 12px 0;
  padding: 8px 16px;
  background: #F9FAFB;
  color: #4B5563;
}

/* MarkdownContent 组件样式 */
.markdown-content {
  white-space: normal;
}

.markdown-content p {
  margin: 0 0 8px 0;
}

.markdown-content p:last-child {
  margin-bottom: 0;
}

.markdown-content .md-divider {
  border: none;
  border-top: 1px solid #E5E7EB;
  margin: 12px 0;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3 {
  margin: 16px 0 8px 0;
  font-weight: 700;
  line-height: 1.4;
}

.markdown-content h1:first-child,
.markdown-content h2:first-child,
.markdown-content h3:first-child {
  margin-top: 0;
}

.markdown-content ul,
.markdown-content ol {
  margin: 8px 0 12px 0;
  padding-left: 24px;
}

.markdown-content ul {
  list-style-type: disc;
}

.markdown-content ol {
  list-style-type: decimal;
  counter-reset: none; /* 确保使用浏览器默认计数 */
}

.markdown-content li {
  margin: 6px 0;
  line-height: 1.6;
  display: list-item; /* 确保显示列表项标记 */
}

.markdown-content li::marker {
  color: #6366F1;
}

.markdown-content strong {
  font-weight: 700;
  color: #1F2937;
}

.markdown-content em {
  font-style: italic;
  color: #4B5563;
}

.markdown-content code {
  background: rgba(99, 102, 241, 0.1);
  color: #6366F1;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
  font-size: 0.9em;
}

/* ============================================ */
/* 阶段标签 */
/* ============================================ */

.message-meta .stage-tag {
  display: inline-block;
  background: linear-gradient(135deg, #6366F1, #8B5CF6);
  color: white;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 8px;
  font-weight: 500;
}

.message-meta .timestamp {
  color: #9CA3AF;
  margin-left: 4px;
}

/* ============================================ */
/* 动作卡片 */
/* ============================================ */

.action-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.action-card {
  display: flex;
  flex-direction: column;
  padding: 14px 18px;
  background: linear-gradient(135deg, #F8FAFC, #F1F5F9);
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  min-width: 200px;
  max-width: 300px;
}

.action-card:hover {
  background: linear-gradient(135deg, #EEF2FF, #E0E7FF);
  border-color: #6366F1;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.action-card-title {
  font-size: 14px;
  font-weight: 600;
  color: #1F2937;
  margin-bottom: 4px;
}

.action-card-desc {
  font-size: 12px;
  color: #6B7280;
  line-height: 1.4;
}

.action-card-icon {
  position: absolute;
  top: 14px;
  right: 14px;
  color: #9CA3AF;
  transition: color 0.2s;
}

.action-card:hover .action-card-icon {
  color: #6366F1;
}

/* ============================================ */
/* 加载状态 */
/* ============================================ */

.chat-bubble.loading {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #6B7280;
}

.spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 流式输出光标 */
.streaming-cursor {
  display: inline-block;
  animation: blink 0.8s step-end infinite;
  color: #6366F1;
  margin-left: 2px;
  font-weight: 400;
}

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

.assistant-bubble {
  background: #F3F4F6;
  color: #111827;
  border-top-left-radius: 2px;
}

.user-bubble {
  background: #4F46E5;
  color: white;
  border-top-right-radius: 2px;
}

/* Reflexion 气泡（紫色左边框） */
.reflexion-bubble {
  background: #F3E8FF;
  border-left: 4px solid #9333EA;
}

.reflexion-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: #7C3AED;
  font-size: 12px;
  margin-bottom: 8px;
}

.reflexion-content {
  color: #111827;
}

/* 思考中动画 */
.chat-bubble.thinking {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
}

.thinking-dot {
  width: 6px;
  height: 6px;
  background: #9CA3AF;
  border-radius: 50%;
  animation: thinking 1.4s ease-in-out infinite;
}

.thinking-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.thinking-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes thinking {
  0%, 60%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-8px);
  }
}

/* 系统消息 */
.system-message {
  font-size: 10px;
  color: #6B7280;
  background: #F3F4F6;
  padding: 6px 12px;
  border-radius: 12px;
  border: 1px solid #E5E7EB;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ============================================ */
/* 同步按钮 */
/* ============================================ */
.sync-button-wrapper {
  margin-top: 12px;
}

.sync-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: #6366F1;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
}

.sync-button:hover:not(.disabled) {
  background: #4F46E5;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.sync-button.disabled {
  background: #E5E7EB;
  color: #9CA3AF;
  cursor: not-allowed;
  box-shadow: none;
}

.sync-button.syncing {
  pointer-events: none;
}

.sync-icon.spinning {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ============================================ */
/* Action Card */
/* ============================================ */
.action-cards {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.action-card {
  border: 1px solid #C7D2FE;
  background: #EEF2FF;
  border-radius: 12px;
  padding: 16px;
  width: 380px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: all 0.2s;
  cursor: pointer;
}

.action-card:hover {
  border-color: #6366F1;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.action-card-header {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.action-icon-box {
  background: #C7D2FE;
  padding: 8px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6366F1;
  flex-shrink: 0;
}

.action-info {
  flex: 1;
}

.action-title {
  font-size: 14px;
  font-weight: 700;
  color: #111827;
  margin: 0 0 4px 0;
}

.action-description {
  font-size: 12px;
  color: #6B7280;
  margin: 0;
}

.action-footer {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.action-button {
  width: 100%;
  padding: 8px 16px;
  background: #6366F1;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s;
  box-shadow: 0 2px 4px rgba(99, 102, 241, 0.15);
}

.action-button:hover {
  background: #4F46E5;
  box-shadow: 0 4px 8px rgba(99, 102, 241, 0.25);
}

.action-button.primary {
  background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
}

.action-hint {
  font-size: 10px;
  color: #9CA3AF;
  text-align: center;
  margin: 0;
}

/* ============================================ */
/* 输入区 */
/* ============================================ */
.input-area {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  border-top: 1px solid #F3F4F6;
  background: #FFFFFF;
}

.input-wrapper {
  position: relative;
  display: flex;
}

.input-field {
  flex: 1;
  padding: 12px 48px 12px 16px;
  background: #F9FAFB;
  border: 1px solid #E5E7EB;
  border-radius: 12px;
  font-size: 14px;
  color: #111827;
  transition: all 0.2s;
  outline: none;
}

.input-field:focus {
  background: #FFFFFF;
  border-color: #6366F1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.input-field::placeholder {
  color: #9CA3AF;
}

.input-field:disabled {
  background: #F3F4F6;
  color: #9CA3AF;
  cursor: not-allowed;
}

.send-btn {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  background: #6366F1;
  color: white;
  border: none;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}

.send-btn:hover:not(:disabled) {
  background: #4F46E5;
}

.send-btn:disabled {
  background: #E5E7EB;
  color: #9CA3AF;
  cursor: not-allowed;
}

/* ============================================ */
/* 状态面板 */
/* ============================================ */
.state-panel {
  width: 100%;
  height: 100%;
  background: #F9FAFB;
  border-left: 1px solid #E5E7EB;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  padding: 16px;
  border-bottom: 1px solid #E5E7EB;
  background: #FFFFFF;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-title {
  font-size: 14px;
  font-weight: 700;
  color: #111827;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.status-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 12px;
  text-transform: uppercase;
}

.status-badge.waiting {
  background: #FEF3C7;
  color: #92400E;
}

.status-badge.synced {
  background: #D1FAE5;
  color: #065F46;
}

.status-badge.completed {
  background: #DBEAFE;
  color: #1E40AF;
}

/* 进度条 */
.progress-bar-container {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #FFFFFF;
  border-bottom: 1px solid #E5E7EB;
}

.progress-bar {
  flex: 1;
  height: 6px;
  background: #E5E7EB;
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #6366F1 0%, #4F46E5 100%);
  transition: width 0.5s ease;
}

.progress-text {
  font-size: 12px;
  font-weight: 700;
  color: #6366F1;
  min-width: 40px;
  text-align: right;
}

/* 面板主体 */
.panel-body {
  flex: 1;
  min-height: 0; /* 关键：允许 flex 子元素收缩 */
  overflow-y: auto;
  padding: 16px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
}

/* ============================================ */
/* Stage Card - 阶段卡片 */
/* ============================================ */
.stage-card {
  background: #FFFFFF;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #E5E7EB;
  margin-bottom: 16px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
  transition: all 0.3s ease;
}

.stage-card.current {
  border-color: #A5B4FC;
  border-width: 2px;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.12);
}

.stage-card.completed {
  border-color: #D1FAE5;
  background: #F0FDF4;
}

.stage-card.pending {
  opacity: 0.6;
}

.stage-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.stage-number {
  font-size: 12px;
  font-weight: 700;
  color: #9CA3AF;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
}

.stage-card.current .stage-number {
  color: #6366F1;
}

.stage-card.completed .stage-number {
  color: #10B981;
}

.check-icon {
  color: #10B981;
}

.loader-icon {
  color: #6366F1;
}

/* 阶段数据 */
.stage-data {
  font-size: 12px;
  color: #374151;
  line-height: 1.5;
}

.data-content {
  margin: 0;
  font-weight: 500;
}

/* PICO数据 */
.pico-data {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pico-item {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.pico-label {
  display: inline-block;
  width: 24px;
  height: 20px;
  line-height: 20px;
  text-align: center;
  border-radius: 4px;
  font-weight: 700;
  font-size: 10px;
  flex-shrink: 0;
}

.pico-label.p {
  background: #DBEAFE;
  color: #1E40AF;
}

.pico-label.i {
  background: #E0E7FF;
  color: #4338CA;
}

.pico-label.c {
  background: #FED7AA;
  color: #C2410C;
}

.pico-label.o {
  background: #D1FAE5;
  color: #065F46;
}

.pico-value {
  flex: 1;
  font-size: 12px;
  color: #374151;
}

/* 研究设计标签 */
.design-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.design-tag {
  font-size: 10px;
  border: 1px solid #E5E7EB;
  padding: 4px 8px;
  border-radius: 4px;
  background: #F9FAFB;
  color: #374151;
}

/* 样本量数据 */
.sample-size-data {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 结果高亮 */
.sample-size-result {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
  border-radius: 8px;
}

.sample-size-result .result-label {
  font-size: 12px;
  color: #4F46E5;
  font-weight: 500;
}

.sample-size-result .result-value {
  font-size: 20px;
  font-weight: 700;
  color: #4F46E5;
  font-family: 'Monaco', 'Consolas', monospace;
}

/* 计算区块 */
.sample-size-data .calculation-section {
  padding: 8px 0;
  border-top: 1px solid #E5E7EB;
}

.sample-size-data .section-title {
  font-size: 11px;
  color: #6B7280;
  font-weight: 600;
  margin-bottom: 8px;
}

/* 参数网格 */
.sample-size-data .params-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.sample-size-data .param-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sample-size-data .param-item.full-width {
  grid-column: span 2;
}

.sample-size-data .param-label {
  font-size: 10px;
  color: #9CA3AF;
}

.sample-size-data .param-value {
  font-size: 12px;
  color: #374151;
  font-family: 'Monaco', 'Consolas', monospace;
}

/* 计算依据 */
.sample-size-data .rationale-text {
  font-size: 11px;
  color: #6B7280;
  line-height: 1.5;
  margin: 0;
}

/* 分组信息 */
.sample-size-data .groups-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sample-size-data .group-item {
  font-size: 11px;
  color: #374151;
  padding: 4px 8px;
  background: #F3F4F6;
  border-radius: 4px;
}

/* 旧样式兼容 */
.sample-size-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calculation-params {
  display: flex;
  gap: 12px;
  font-size: 11px;
  color: #6B7280;
}

/* 观察指标数据 */
.endpoints-data {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.endpoint-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.endpoint-title {
  font-size: 11px;
  font-weight: 700;
  color: #6B7280;
}

.endpoint-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.endpoint-tag {
  font-size: 10px;
  background: #F3F4F6;
  color: #374151;
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid #E5E7EB;
}

.endpoint-tag.primary {
  background: #DBEAFE;
  border-color: #BFDBFE;
  color: #1E40AF;
}

.endpoint-tag.safety {
  background: #FEE2E2;
  border-color: #FECACA;
  color: #991B1B;
}

.endpoint-tag.confounder {
  background: #FEF3C7;
  border-color: #FDE68A;
  color: #92400E;
}

.endpoint-item {
  display: flex;
  gap: 6px;
  font-size: 11px;
}

.item-label {
  color: #9CA3AF;
  font-weight: 500;
}

.item-value {
  color: #374151;
  flex: 1;
}

.endpoint-subsection {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.subsection-label {
  font-size: 10px;
  color: #9CA3AF;
  font-weight: 600;
  min-width: 40px;
}

/* ============================================ */
/* 折叠展开组件 */
/* ============================================ */

.collapsible-wrapper {
  position: relative;
}

.collapsible-content {
  transition: max-height 0.3s ease-out;
}

.collapsible-content.collapsed {
  position: relative;
}

.collapsible-content.expanded {
  max-height: none !important;
}

/* 渐变遮罩 - 折叠时显示 */
.collapse-gradient {
  position: absolute;
  bottom: 24px; /* 按钮高度 */
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.9) 60%,
    rgba(255, 255, 255, 1) 100%
  );
  pointer-events: none;
}

/* 展开/收起按钮 */
.expand-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 100%;
  padding: 6px 12px;
  margin-top: 4px;
  background: #F9FAFB;
  border: 1px dashed #D1D5DB;
  border-radius: 6px;
  font-size: 11px;
  color: #6B7280;
  cursor: pointer;
  transition: all 0.2s ease;
}

.expand-toggle-btn:hover {
  background: #F3F4F6;
  border-color: #9CA3AF;
  color: #4B5563;
}

.expand-toggle-btn svg {
  flex-shrink: 0;
}

/* 已完成卡片的渐变遮罩颜色调整 */
.stage-card.completed .collapse-gradient {
  background: linear-gradient(
    to bottom,
    rgba(249, 250, 251, 0) 0%,
    rgba(249, 250, 251, 0.9) 60%,
    rgba(249, 250, 251, 1) 100%
  );
}

/* ============================================ */
/* 详细卡片样式 - 完整内容显示 */
/* ============================================ */

/* 科学问题 - 完整显示 */
.scientific-question-data .full-content {
  font-size: 12px;
  line-height: 1.6;
  color: #374151;
  margin: 0;
  word-break: break-word;
}

/* PICO - 完整显示 */
.pico-data .full-value {
  font-size: 12px;
  line-height: 1.5;
  word-break: break-word;
}

/* 研究设计 - 完整显示 */
.study-design-data .design-main {
  margin-bottom: 8px;
}

.study-design-data .design-type-tag {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, #4F46E5 0%, #6366F1 100%);
  color: white;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.study-design-data .design-features {
  margin-top: 8px;
}

.study-design-data .features-label {
  font-size: 10px;
  color: #9CA3AF;
  font-weight: 600;
  margin-right: 8px;
}

.study-design-data .design-details {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid #E5E7EB;
}

.study-design-data .details-label {
  font-size: 10px;
  color: #9CA3AF;
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

.study-design-data .details-text {
  font-size: 11px;
  line-height: 1.5;
  color: #374151;
  margin: 0;
}

/* 样本量 - 完整显示 */
.sample-size-data .full-text {
  font-size: 11px;
  color: #374151;
  line-height: 1.6;
  margin: 0;
  word-break: break-word;
}

.sample-size-data .dropout-text {
  font-size: 11px;
  color: #6B7280;
  line-height: 1.5;
  margin: 0;
}

.sample-size-data .group-name {
  font-weight: 500;
  color: #4B5563;
  margin-right: 4px;
}

.sample-size-data .group-size {
  color: #4F46E5;
  font-weight: 600;
}

/* 观察指标 - 详细版本 */
.endpoints-data.detailed {
  gap: 14px;
}

.endpoints-data .endpoint-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 4px;
}

.endpoints-data .endpoint-item-full {
  font-size: 11px;
  line-height: 1.5;
  color: #374151;
  padding: 4px 0;
}

.endpoints-data .endpoint-item-full.primary-item {
  color: #4F46E5;
  font-weight: 500;
}

.endpoints-data .endpoint-item-full.safety-item {
  color: #DC2626;
}

.endpoints-data .endpoint-item-full.confounder-item {
  color: #92400E;
}

.endpoints-data .endpoint-detail-item {
  display: flex;
  gap: 8px;
  font-size: 11px;
  padding: 4px 0;
}

.endpoints-data .detail-label {
  color: #9CA3AF;
  font-weight: 600;
  min-width: 70px;
  flex-shrink: 0;
}

.endpoints-data .detail-value {
  color: #374151;
  line-height: 1.5;
  flex: 1;
}

.endpoints-data .primary-label {
  color: #4F46E5;
  font-weight: 700;
}

.endpoints-data .safety-label {
  color: #DC2626;
  font-weight: 700;
}

.endpoints-data .followup-text {
  font-size: 11px;
  line-height: 1.6;
  color: #374151;
  margin: 0;
}

/* ============================================ */
/* 一键生成按钮 */
/* ============================================ */
.generate-section {
  margin-top: 24px;
  padding: 16px;
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
  border: 2px solid #C7D2FE;
  border-radius: 12px;
  text-align: center;
}

.generate-btn {
  width: 100%;
  padding: 12px 20px;
  background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.2s;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.generate-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
}

.generate-btn.disabled,
.generate-btn:disabled {
  background: linear-gradient(135deg, #9CA3AF 0%, #6B7280 100%);
  cursor: not-allowed;
  opacity: 0.7;
  box-shadow: none;
}

.generate-btn.disabled:hover,
.generate-btn:disabled:hover {
  transform: none;
}

.generate-btn.generating {
  background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
  cursor: wait;
}

.generate-btn .spinner {
  animation: spin 1s linear infinite;
}

.generate-icon {
  font-size: 18px;
}

.generate-text {
  font-size: 14px;
}

.generate-hint {
  font-size: 10px;
  color: #6B7280;
  margin: 8px 0 0 0;
}

/* ============================================ */
/* 闪烁动画（同步更新） */
/* ============================================ */
@keyframes flash {
  0% { background-color: #DBEAFE; }
  100% { background-color: transparent; }
}

.flash-update {
  animation: flash 1.5s ease-out;
}

/* ============================================ */
/* 滚动条美化 - 始终可见 */
/* ============================================ */
.pa-chat-container,
.panel-body,
.conversations-list,
.document-scroll-area {
  scrollbar-width: thin;
  scrollbar-color: #94A3B8 #F1F5F9;
}

.pa-chat-container::-webkit-scrollbar,
.panel-body::-webkit-scrollbar,
.conversations-list::-webkit-scrollbar,
.document-scroll-area::-webkit-scrollbar {
  width: 8px;
}

.pa-chat-container::-webkit-scrollbar-track,
.panel-body::-webkit-scrollbar-track,
.conversations-list::-webkit-scrollbar-track,
.document-scroll-area::-webkit-scrollbar-track {
  background: #F1F5F9;
  border-radius: 4px;
}

.pa-chat-container::-webkit-scrollbar-thumb,
.panel-body::-webkit-scrollbar-thumb,
.conversations-list::-webkit-scrollbar-thumb,
.document-scroll-area::-webkit-scrollbar-thumb {
  background: #94A3B8;
  border-radius: 4px;
  border: 2px solid #F1F5F9;
}

.pa-chat-container::-webkit-scrollbar-thumb:hover,
.panel-body::-webkit-scrollbar-thumb:hover,
.conversations-list::-webkit-scrollbar-thumb:hover,
.document-scroll-area::-webkit-scrollbar-thumb:hover {
  background: #64748B;
}

/* ============================================ */
/* 阶段编辑弹窗 */
/* ============================================ */
.stage-edit-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.stage-edit-modal {
  background: white;
  border-radius: 12px;
  width: 480px;
  max-width: 90%;
  max-height: 80vh;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.stage-edit-modal .modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid #E5E7EB;
  background: #F9FAFB;
}

.stage-edit-modal .modal-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: #111827;
}

.stage-edit-modal .close-btn {
  padding: 4px;
  background: transparent;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  color: #6B7280;
  transition: all 0.2s;
}

.stage-edit-modal .close-btn:hover {
  background: #E5E7EB;
  color: #111827;
}

.stage-edit-modal .modal-body {
  padding: 20px;
  overflow-y: auto;
  max-height: 50vh;
}

.stage-edit-modal .form-group {
  margin-bottom: 16px;
}

.stage-edit-modal .form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: #374151;
  margin-bottom: 6px;
}

.stage-edit-modal .form-group input,
.stage-edit-modal .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #D1D5DB;
  border-radius: 8px;
  font-size: 14px;
  color: #111827;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.stage-edit-modal .form-group input:focus,
.stage-edit-modal .form-group textarea:focus {
  outline: none;
  border-color: #3B82F6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.stage-edit-modal .form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.stage-edit-modal .form-row {
  display: flex;
  gap: 12px;
}

.stage-edit-modal .form-group.half {
  flex: 1;
}

.stage-edit-modal .modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 20px;
  border-top: 1px solid #E5E7EB;
  background: #F9FAFB;
}

.stage-edit-modal .cancel-btn {
  padding: 8px 16px;
  background: white;
  border: 1px solid #D1D5DB;
  border-radius: 8px;
  font-size: 14px;
  color: #374151;
  cursor: pointer;
  transition: all 0.2s;
}

.stage-edit-modal .cancel-btn:hover {
  background: #F3F4F6;
}

.stage-edit-modal .save-btn {
  padding: 8px 16px;
  background: #3B82F6;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.stage-edit-modal .save-btn:hover:not(:disabled) {
  background: #2563EB;
}

.stage-edit-modal .save-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* 编辑按钮样式 */
.stage-header .stage-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.stage-header .edit-btn {
  padding: 4px;
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  color: #9CA3AF;
  transition: all 0.2s;
  opacity: 0;
}

.stage-card:hover .edit-btn {
  opacity: 1;
}

.stage-header .edit-btn:hover {
  background: #E5E7EB;
  color: #3B82F6;
}

/* 添加按钮 */
.stage-header .add-btn {
  padding: 4px;
  background: transparent;
  border: 1px dashed #D1D5DB;
  border-radius: 4px;
  cursor: pointer;
  color: #9CA3AF;
  transition: all 0.2s;
}

.stage-header .add-btn:hover {
  background: #EEF2FF;
  border-color: #6366F1;
  color: #6366F1;
}

/* 待完成图标 */
.stage-header .pending-icon {
  color: #D1D5DB;
}

/* 流式输出光标 */
.streaming-cursor {
  display: inline-block;
  animation: blink 1s step-end infinite;
  color: #3B82F6;
  font-weight: bold;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* ============================================ */
/* 导出按钮样式 */
/* ============================================ */
.export-section {
  padding: 16px;
  margin: 12px 0;
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
  border-radius: 12px;
  border: 1px solid #C7D2FE;
}

.export-btn {
  width: 100%;
  padding: 12px 16px;
  background: #4F46E5;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(79, 70, 229, 0.2);
}

.export-btn:hover:not(:disabled) {
  background: #4338CA;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(79, 70, 229, 0.3);
}

.export-btn:active:not(:disabled) {
  transform: translateY(0);
}

.export-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.export-btn.loading {
  background: #6366F1;
}

.export-btn .spinner {
  animation: spin 1s linear infinite;
}

.export-hint {
  margin-top: 8px;
  font-size: 12px;
  color: #4F46E5;
  text-align: center;
}

/* ============================================ */
/* 视图切换器 */
/* ============================================ */
.view-switcher {
  display: flex;
  background: #F3F4F6;
  padding: 4px;
  border-radius: 8px;
  gap: 2px;
}

.view-switch-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: none;
  background: transparent;
  color: #6B7280;
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.view-switch-btn:hover:not(.disabled) {
  color: #374151;
}

.view-switch-btn.active {
  background: #FFFFFF;
  color: #4F46E5;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

/* ============================================ */
/* 文档面板 */
/* ============================================ */
.document-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #E5E7EB;
}

.document-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  text-align: center;
}

.document-empty .empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.document-empty h3 {
  font-size: 18px;
  font-weight: 600;
  color: #374151;
  margin-bottom: 8px;
}

.document-empty p {
  font-size: 14px;
  color: #6B7280;
  max-width: 300px;
}

/* 文档工具栏 */
.document-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: #F9FAFB;
  border-bottom: 1px solid #E5E7EB;
}

.toolbar-left {
  display: flex;
  align-items: center;
}

.generating-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #6366F1;
  font-size: 13px;
  font-weight: 500;
}

.generating-status .spinner {
  animation: spin 1s linear infinite;
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toolbar-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid #D1D5DB;
  background: #FFFFFF;
  color: #374151;
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.toolbar-btn:hover:not(:disabled) {
  background: #F9FAFB;
  border-color: #9CA3AF;
}

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

.toolbar-btn.primary {
  background: #4F46E5;
  border-color: #4F46E5;
  color: #FFFFFF;
}

.toolbar-btn.primary:hover:not(:disabled) {
  background: #4338CA;
  border-color: #4338CA;
}

/* 文档滚动区域 */
.document-scroll-area {
  flex: 1;
  min-height: 0; /* 关键：允许 flex 子元素收缩 */
  overflow-y: auto;
  padding: 24px;
  background: linear-gradient(to bottom, #D1D5DB 0%, #E5E7EB 100%);
}

/* A4 纸张效果 */
.a4-paper {
  max-width: 210mm;
  min-height: 297mm;
  margin: 0 auto;
  padding: 25mm 20mm;
  background: #FFFFFF;
  box-shadow: 
    0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06),
    0 20px 25px -5px rgba(0, 0, 0, 0.1);
  font-family: 'Noto Serif SC', 'SimSun', serif;
  color: #1F2937;
  line-height: 1.8;
  font-size: 15px;
}

/* 纸张内容样式 */
.paper-content h1 {
  font-size: 24px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 32px;
  padding-bottom: 16px;
  line-height: 1.4;
}

.paper-content h2 {
  font-size: 18px;
  font-weight: 700;
  margin-top: 24px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid #1F2937;
}

.paper-content h3 {
  font-size: 16px;
  font-weight: 600;
  margin-top: 16px;
  margin-bottom: 8px;
}

.paper-content p {
  text-align: justify;
  text-indent: 2em;
  margin-bottom: 12px;
}

.paper-content ul, .paper-content ol {
  margin-left: 2em;
  margin-bottom: 12px;
}

.paper-content li {
  margin-bottom: 4px;
}

.paper-content strong {
  font-weight: 700;
}

/* 章节头部（带讨论按钮） */
.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.section-header h2 {
  flex: 1;
}

.section-discuss-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1px solid #D1D5DB;
  background: #FFFFFF;
  color: #6B7280;
  font-size: 11px;
  font-family: 'Inter', sans-serif;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 4px;
}

.section-discuss-btn:hover {
  background: #F3F4F6;
  color: #4F46E5;
  border-color: #A5B4FC;
}

/* 打字机光标 */
.typing-cursor {
  display: inline;
  animation: blink 1s step-end infinite;
  color: #4F46E5;
  font-weight: 700;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* 滚动到底部按钮 */
.scroll-to-bottom-btn {
  position: absolute;
  bottom: 80px;
  right: 40px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: #4F46E5;
  color: white;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
  font-size: 12px;
  font-weight: 500;
  transition: all 0.2s;
  z-index: 10;
  animation: fadeIn 0.2s ease;
}

.scroll-to-bottom-btn:hover {
  background: #4338CA;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.5);
}

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

/* 生成中的内容区域 */
.paper-content.typing {
  min-height: 200px;
}

/* ============================================ */
/* 可拖拽分栏 */
/* ============================================ */
.resizable-split-pane {
  position: relative;
}

.resizable-split-pane.dragging {
  cursor: col-resize;
}

.split-pane-handle:hover {
  background: #E5E7EB;
}

/* ============================================ */
/* 响应式 */
/* ============================================ */
@media (max-width: 1024px) {
  .state-panel {
    display: none;
  }
  
  .sidebar.expanded {
    position: absolute;
    z-index: 20;
    height: 100%;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
  }

  .document-panel {
    display: none;
  }

  .view-switcher {
    display: none;
  }
}