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

:root {
  --primary: #667eea;
  --primary-dark: #5a67d8;
  --bg-color: #f7fafc;
  --card-bg: #ffffff;
  --text-color: #2d3748;
  --text-light: #718096;
  --border-color: #e2e8f0;
  --user-msg: #667eea;
  --ai-msg: #f7fafc;
  --shadow: 0 2px 8px rgba(0,0,0,0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

#app {
  min-height: 100vh;
  min-height: 100dvh;
}

/* ==================== 主页布局 ==================== */

.main-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  background: #f5f5f5;
}

.main-content {
  flex: 1;
  overflow-y: auto;
}

/* 底部导航栏 */
.bottom-nav {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 8px 0;
  background: white;
  border-top: 1px solid var(--border-color);
  position: sticky;
  bottom: 0;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s;
}

.nav-item svg {
  flex-shrink: 0;
}

.nav-item span {
  font-size: 12px;
}

.nav-item:hover {
  color: var(--primary);
}

.nav-item.active {
  color: var(--primary);
}

/* ==================== 页面通用头部（紫色渐变） ==================== */

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  color: white;
}

.page-header h1 {
  font-size: 18px;
  font-weight: 600;
}

/* ==================== 对话页面 ==================== */

.chats-page {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.chats-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  color: white;
}

.chats-header h1 {
  font-size: 18px;
  font-weight: 600;
}

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

.chats-header-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.95);
  border: none;
  border-radius: 50%;
  color: var(--primary);
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.chats-header-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 16px rgba(102,126,234,0.4);
  color: #5a67d8;
}

.chats-header-btn:active {
  transform: scale(0.95);
}

.chats-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  background: #f5f5f5;
}

/* ==================== 智能体页面 ==================== */

.agents-page {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.agents-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  color: white;
}

.agents-header h1 {
  font-size: 18px;
  font-weight: 600;
}

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

.agents-header-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.95);
  border: none;
  border-radius: 50%;
  color: var(--primary);
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  font-size: 18px;
}

.agents-header-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 16px rgba(102,126,234,0.4);
  color: #5a67d8;
}

.agents-header-btn.favorite-btn {
  font-size: 20px;
  font-weight: bold;
}

.agents-header-btn.favorite-btn.has-favorites {
  color: #f59e0b;
}

.agents-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  background: #f5f5f5;
}

.agents-section {
  margin-bottom: 24px;
}

.section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 12px;
}

.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.section-title-row .section-title {
  margin-bottom: 0;
}

.section-more {
  font-size: 14px;
  color: var(--primary);
  cursor: pointer;
  transition: color 0.2s;
}

.section-more:hover {
  color: #5a67d8;
}

.agents-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.agent-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.agent-card:hover {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.05);
  transform: translateY(-2px);
}

.agent-card.pinned {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.08);
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2);
}

.agent-card.favorite {
  border-color: #f59e0b;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.2);
}

.agent-pin-icon {
  position: absolute;
  top: 8px;
  left: 8px;
  font-size: 14px;
}

.agent-fav-icon {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 14px;
}

.agent-avatar {
  font-size: 32px;
  margin-bottom: 8px;
}

.agent-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 4px;
}

.agent-desc {
  font-size: 12px;
  color: var(--text-light);
  text-align: center;
}

/* 智能体操作菜单 */
.agent-action-menu {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: transparent;
  display: none;
  z-index: 1000;
}

.agent-action-menu.show {
  display: block;
}

.agent-action-menu-content {
  background: white;
  border-radius: 16px 16px 0 0;
  padding: 16px;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
  animation: slideUp 0.2s ease;
}

.agent-action-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
}

.agent-action-item:hover {
  background: rgba(102, 126, 234, 0.1);
}

.agent-action-item svg {
  color: var(--primary);
}

.agent-action-item span {
  font-size: 16px;
  color: var(--text-color);
}

.agent-action-item.delete-action svg,
.agent-action-item.delete-action span {
  color: #e53e3e;
}

.agent-action-item.delete-action:hover {
  background: rgba(229, 62, 62, 0.1);
}

/* ==================== 智能体发现页面 ==================== */

.agent-discover-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  background: #f5f5f5;
}

.discover-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  color: white;
}

.discover-header h1 {
  font-size: 18px;
  font-weight: 600;
  margin-left: 12px;
}

.back-btn-white {
  background: transparent;
  border: none;
  color: white;
  padding: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
}

.discover-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

.discover-search {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 16px;
}

.discover-search svg {
  color: var(--text-light);
}

.discover-search input {
  flex: 1;
  font-size: 16px;
  border: none;
  outline: none;
  background: transparent;
}

.discover-section {
  margin-bottom: 24px;
}

.discover-section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 12px;
}

.discover-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.discover-card {
  display: flex;
  flex-direction: column;
  padding: 16px;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  transition: all 0.2s;
}

.discover-card:hover {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.05);
}

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

.discover-avatar {
  font-size: 32px;
}

.discover-card-info {
  flex: 1;
}

.discover-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-color);
}

.discover-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.discover-category {
  font-size: 12px;
  color: var(--primary);
  background: rgba(102, 126, 234, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.discover-heat {
  font-size: 12px;
  color: #f59e0b;
}

.discover-desc {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 12px;
}

.discover-actions {
  display: flex;
  gap: 8px;
}

.discover-action-btn {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-light);
  background: white;
  cursor: pointer;
  transition: all 0.2s;
}

.discover-action-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.discover-action-btn.add-btn {
  border-color: var(--primary);
  color: var(--primary);
}

.discover-action-btn.add-btn:hover {
  background: var(--primary);
  color: white;
}

.discover-action-btn.add-btn.added {
  background: rgba(102, 126, 234, 0.1);
  color: var(--primary);
  border-color: var(--primary);
}

.discover-action-btn.favorite-btn {
  border-color: #f59e0b;
  color: #f59e0b;
}

.discover-action-btn.favorite-btn:hover {
  background: #f59e0b;
  color: white;
}

.discover-action-btn.favorite-btn.favorited {
  background: #f59e0b;
  color: white;
}

/* ==================== 智能体收藏夹页面 ==================== */

.agent-favorite-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  background: #f5f5f5;
}

.favorite-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  color: white;
}

.favorite-header h1 {
  font-size: 18px;
  font-weight: 600;
  margin-left: 12px;
}

.favorite-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

.empty-favorites {
  text-align: center;
  padding: 60px 20px;
}

.empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  color: #f59e0b;
}

.empty-favorites p {
  color: var(--text-light);
  margin: 8px 0;
}

.empty-favorites .empty-tip {
  font-size: 14px;
  color: var(--primary);
}

.favorite-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.favorite-agent-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  background: white;
  border: 1px solid #f59e0b;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.15);
}

.favorite-agent-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.25);
}

.favorite-agent-avatar {
  font-size: 32px;
  margin-bottom: 8px;
}

.favorite-agent-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 4px;
}

.favorite-agent-desc {
  font-size: 12px;
  color: var(--text-light);
  text-align: center;
}

.favorite-agent-unfav {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 24px;
  height: 24px;
  background: transparent;
  border: none;
  color: #f59e0b;
  font-size: 16px;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.favorite-agent-unfav:hover {
  opacity: 1;
}

/* 最近使用的智能体列表 */
.recent-agents-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.recent-agent-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
}

.recent-agent-item:hover {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.05);
}

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

.recent-agent-avatar {
  font-size: 20px;
}

.recent-agent-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-color);
}

.recent-agent-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-light);
}

.recent-agent-usage {
  color: var(--primary);
}

.recent-agent-agent-name {
  font-size: 12px;
  color: var(--primary);
  background: rgba(102, 126, 234, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

/* 智能体历史页面 */
.agent-history-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
}

.back-btn-white {
  background: transparent;
  border: none;
  color: white;
  padding: 8px;
  cursor: pointer;
}

.agent-history-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  background: #f5f5f5;
}

.agent-history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.agent-history-item:hover {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.05);
}

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

.agent-history-avatar {
  font-size: 24px;
}

.agent-history-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-color);
}

.agent-history-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-light);
}

.agent-history-usage {
  color: var(--primary);
}

.agent-history-agent {
  font-size: 12px;
  color: var(--primary);
  background: rgba(102, 126, 234, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

/* ==================== 我的页面 ==================== */

.profile-page {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.profile-content {
  flex: 1;
  padding: 16px;
  background: #f5f5f5;
}

.profile-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px;
  background: white;
  border-radius: 12px;
  margin-bottom: 16px;
}

.profile-avatar {
  font-size: 48px;
  margin-bottom: 12px;
}

.profile-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-color);
}

.profile-section {
  background: white;
  border-radius: 12px;
  overflow: hidden;
}

.profile-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.2s;
}

.profile-item:last-child {
  border-bottom: none;
}

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

.profile-item svg {
  color: var(--primary);
}

.profile-item span {
  font-size: 16px;
  color: var(--text-color);
}

.profile-footer {
  margin-top: 32px;
  text-align: center;
  color: var(--text-light);
  font-size: 14px;
}

.profile-footer p {
  margin: 4px 0;
}

/* ==================== 智能体对话界面 ==================== */

.chat-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
}

.chat-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  color: white;
}

.back-btn {
  background: transparent;
  border: none;
  color: white;
  padding: 8px;
  cursor: pointer;
}

.header-info {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.agent-avatar-header {
  font-size: 28px;
}

.header-text h1 {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}

.agent-desc-header {
  font-size: 12px;
  opacity: 0.8;
  margin: 0;
}

/* ==================== 对话列表页面 ==================== */

.conversation-list-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--card-bg);
}

.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  color: white;
  position: sticky;
  top: 0;
  z-index: 100;
}

.list-header .header-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.list-header .logo {
  font-size: 24px;
}

.list-header h1 {
  font-size: 18px;
  font-weight: 600;
}

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

.header-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.95);
  border: none;
  border-radius: 50%;
  color: var(--primary);
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15), inset 0 1px 0 rgba(255,255,255,0.5);
  position: relative;
  overflow: hidden;
}

.header-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,1) 0%, rgba(255,255,255,0.7) 100%);
  opacity: 0;
  transition: opacity 0.25s;
}

.header-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 16px rgba(102,126,234,0.4), 0 2px 8px rgba(0,0,0,0.2);
  color: #5a67d8;
}

.header-btn:hover::before {
  opacity: 1;
}

.header-btn:active {
  transform: scale(0.95);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.header-btn svg {
  filter: drop-shadow(0 1px 2px rgba(102,126,234,0.3));
}

.list-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

/* 原样式保留（备用） */
.new-chat-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  cursor: pointer;
  margin-bottom: 16px;
  transition: transform 0.2s;
}

.new-chat-btn:active {
  transform: scale(0.98);
}

.conversation-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.empty-list {
  text-align: center;
  padding: 40px;
  color: var(--text-light);
}

.conversation-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  gap: 8px;
}

.conversation-item.pinned {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.08);
}

.conversation-item:hover {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.05);
}

.conversation-item:active {
  background: rgba(102, 126, 234, 0.1);
}

.pin-icon {
  font-size: 14px;
}

.conv-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-color);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.conv-meta {
  font-size: 12px;
  color: var(--text-light);
  white-space: nowrap;
}

/* 操作菜单 */
.action-menu {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: transparent;
  display: none;
  z-index: 1000;
}

.action-menu.show {
  display: block;
}

.action-menu-content {
  background: white;
  border-radius: 16px 16px 0 0;
  padding: 16px;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
  animation: slideUp 0.2s ease;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.action-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
}

.action-menu-item:hover {
  background: rgba(102, 126, 234, 0.1);
}

.action-menu-item:active {
  background: rgba(102, 126, 234, 0.2);
}

.action-menu-item svg {
  color: var(--primary);
}

.action-menu-item span {
  font-size: 16px;
  color: var(--text-color);
}

.action-menu-item.delete-action svg,
.action-menu-item.delete-action span {
  color: #e53e3e;
}

.action-menu-item.delete-action:hover {
  background: rgba(229, 62, 62, 0.1);
}

/* 搜索栏 */
.search-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  display: none;
  z-index: 1100;
}

.search-bar.show {
  display: flex;
  flex-direction: column;
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: white;
  border-bottom: 1px solid var(--border-color);
}

.search-input-wrapper svg {
  color: var(--text-light);
}

.search-input-wrapper input {
  flex: 1;
  font-size: 16px;
  border: none;
  outline: none;
  background: transparent;
}

.search-close-btn {
  padding: 8px;
  background: transparent;
  border: none;
  color: var(--text-light);
  cursor: pointer;
}

.search-close-btn:hover {
  color: var(--text-color);
}

.search-results {
  flex: 1;
  background: white;
  overflow-y: auto;
  padding: 8px 16px;
}

.search-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-light);
}

.search-result-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 16px;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.search-result-item:hover {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.05);
}

.search-result-item.pinned {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.08);
}

.search-result-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-color);
}

.search-result-snippet {
  font-size: 14px;
  color: var(--text-light);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-result-meta {
  font-size: 12px;
  color: var(--text-light);
}

/* 底部工具栏 */
.list-footer {
  display: flex;
  justify-content: center;
  padding: 12px 16px;
  background: white;
  border-top: 1px solid var(--border-color);
}

.footer-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 14px;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s;
}

.footer-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.footer-btn:active {
  background: rgba(102, 126, 234, 0.1);
}

/* ==================== 对话页面 ==================== */

#chatPage {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  max-width: 800px;
  margin: 0 auto;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  color: white;
  position: sticky;
  top: 0;
  z-index: 100;
}

.back-btn {
  background: transparent;
  border: none;
  color: white;
  padding: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
}

.back-btn:active {
  opacity: 0.8;
}

.header-title {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  margin-left: 8px;
}

.header-title h1 {
  font-size: 16px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.logo {
  font-size: 20px;
}

.clear-btn {
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: 8px;
  padding: 8px;
  color: white;
  cursor: pointer;
}

.clear-btn:active {
  background: rgba(255,255,255,0.3);
}

.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  -webkit-overflow-scrolling: touch;
}

.welcome {
  text-align: center;
  padding: 40px 20px;
}

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

.welcome h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.welcome p {
  color: var(--text-light);
  margin-bottom: 24px;
}

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.quick-actions button {
  padding: 8px 16px;
  border: 1px solid var(--primary);
  background: white;
  color: var(--primary);
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
}

.quick-actions button:active {
  background: var(--primary);
  color: white;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.message {
  display: flex;
  gap: 12px;
  animation: fadeIn 0.3s ease;
}

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

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

.message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.message.user .message-avatar {
  background: var(--user-msg);
  color: white;
}

.message.assistant .message-avatar {
  background: var(--primary);
  color: white;
}

.message-content {
  padding: 12px 16px;
  border-radius: 18px;
  word-wrap: break-word;
}

.message.user .message-content {
  background: var(--user-msg);
  color: white;
  border-bottom-right-radius: 4px;
}

.message.assistant .message-content {
  background: var(--ai-msg);
  color: var(--text-color);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border-color);
}

.message-content code {
  background: rgba(0,0,0,0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Monaco', 'Menlo', monospace;
  font-size: 0.9em;
}

.message-content pre {
  background: #1a1a2e;
  color: #eee;
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 8px 0;
}

.message-content pre code {
  background: transparent;
  padding: 0;
}

.message.user .message-content pre {
  background: rgba(0,0,0,0.2);
}

/* 流式输出光标 */
.streaming-cursor {
  animation: blink 1s infinite;
  color: var(--primary);
  font-weight: bold;
}

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

/* 消息结构 */
.message-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.message.user .message-body {
  max-width: 85%;
}

.message.assistant .message-body {
  max-width: 80%;
}

/* 消息操作按钮 */
.message-actions {
  display: flex;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.2s;
}

.message:hover .message-actions {
  opacity: 1;
}

.action-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 4px 6px;
  color: var(--text-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.action-btn:hover {
  background: var(--border-color);
  color: var(--text-color);
}

.action-btn.copy-btn:hover {
  background: #dbeafe;
  border-color: var(--primary);
  color: var(--primary);
}

.action-btn.delete-btn:hover {
  background: #fee2e2;
  border-color: #e53e3e;
  color: #e53e3e;
}

.action-btn.regenerate-btn:hover {
  background: #dbeafe;
  border-color: var(--primary);
  color: var(--primary);
}

/* Markdown 内容样式 */
.message-content h1, .message-content h2, .message-content h3 {
  margin: 12px 0 8px;
  font-weight: 600;
}

.message-content h1 { font-size: 1.3em; }
.message-content h2 { font-size: 1.2em; }
.message-content h3 { font-size: 1.1em; }

/* 图片消息样式 */
.message-image {
  margin-bottom: 8px;
}

.message-image img {
  max-width: 100%;
  max-height: 300px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.2s;
}

.message-image img:hover {
  transform: scale(1.02);
}

/* 图片预览遮罩 */
.image-preview-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.image-preview-overlay img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 8px;
}

.message-content ul, .message-content ol {
  margin: 8px 0;
  padding-left: 20px;
}

.message-content li {
  margin: 4px 0;
}

.message-content strong {
  font-weight: 600;
}

.message-content em {
  font-style: italic;
}

.message-content a {
  color: var(--primary);
  text-decoration: underline;
}

.message-content blockquote {
  margin: 8px 0;
  padding: 8px 12px;
  border-left: 3px solid var(--primary);
  background: rgba(102, 126, 234, 0.1);
  border-radius: 4px;
}

.message-content table {
  margin: 8px 0;
  border-collapse: collapse;
  width: 100%;
}

.message-content th, .message-content td {
  border: 1px solid var(--border-color);
  padding: 6px 10px;
  text-align: left;
}

.message-content th {
  background: var(--bg-color);
  font-weight: 600;
}

/* 功能开关栏 */
.feature-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255,255,255,0.95);
  border-top: 1px solid var(--border-color);
}

.feature-left {
  display: flex;
  gap: 8px;
}

.feature-right {
  display: flex;
  gap: 4px;
}

.feature-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s;
}

.feature-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.feature-btn.active {
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  border-color: transparent;
  color: white;
}

.feature-btn svg {
  flex-shrink: 0;
}

/* 导航按钮样式 */
.nav-btn {
  padding: 6px 8px;
  min-width: 32px;
}

.nav-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* 思考内容块 */
.thinking-block {
  margin-bottom: 12px;
  background: rgba(102, 126, 234, 0.08);
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s;
}

.thinking-block:hover {
  border-color: rgba(102, 126, 234, 0.4);
}

.thinking-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: rgba(102, 126, 234, 0.12);
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
}

.thinking-header svg:first-child {
  color: var(--primary);
}

.thinking-arrow {
  margin-left: auto;
  transition: transform 0.2s;
}

.thinking-block.expanded .thinking-arrow {
  transform: rotate(180deg);
}

.thinking-content {
  padding: 0 12px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.6;
}

.thinking-block.expanded .thinking-content {
  padding: 12px;
  max-height: 500px;
}

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

/* 搜索结果块 */
.search-results-block {
  margin-bottom: 12px;
  background: rgba(102, 126, 234, 0.05);
  border: 1px solid rgba(102, 126, 234, 0.15);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s;
}

.search-results-block:hover {
  border-color: rgba(102, 126, 234, 0.3);
}

.search-results-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: rgba(102, 126, 234, 0.1);
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
}

.search-results-header svg:first-child {
  color: var(--primary);
}

.search-results-arrow {
  margin-left: auto;
  transition: transform 0.2s;
}

.search-results-block.expanded .search-results-arrow {
  transform: rotate(180deg);
}

.search-results-content {
  padding: 0 12px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.search-results-block.expanded .search-results-content {
  padding: 8px 12px;
  max-height: 300px;
}

.search-result-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
}

.search-result-num {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 500;
}

.search-result-link a {
  color: var(--text-color);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s;
}

.search-result-link a:hover {
  color: var(--primary);
}

/* 输入区域 */
.input-area {
  display: flex;
  gap: 10px;
  padding: 12px 16px;
  background: white;
  border-top: 1px solid var(--border-color);
  position: sticky;
  bottom: 0;
}

/* 上传按钮 */
.attach-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--border-color);
  color: var(--text-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}

.attach-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(102, 126, 234, 0.05);
}

.attach-btn:active {
  transform: scale(0.95);
}

/* 上传选项面板 */
.attach-panel {
  position: fixed;
  bottom: 70px;
  left: 16px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  padding: 16px;
  display: none;
  z-index: 200;
}

.attach-panel.show {
  display: block;
  animation: slideUp 0.2s ease;
}

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

.attach-panel-content {
  display: flex;
  gap: 16px;
}

.attach-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(102, 126, 234, 0.05);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.attach-item:hover {
  background: rgba(102, 126, 234, 0.15);
}

.attach-icon {
  font-size: 28px;
}

.attach-label {
  font-size: 12px;
  color: var(--text-color);
}

#userInput {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: 24px;
  font-size: 16px;
  resize: none;
  outline: none;
  font-family: inherit;
  max-height: 120px;
  transition: border-color 0.2s;
}

#userInput:focus {
  border-color: var(--primary);
}

.send-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, opacity 0.2s;
  flex-shrink: 0;
}

.send-btn:active {
  transform: scale(0.95);
}

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

/* Toast 提示 */
.toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: var(--text-color);
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* 安全区域适配（刘海屏） */
@supports (padding: env(safe-area-inset-bottom)) {
  .input-area {
    padding-bottom: calc(12px + env(safe-area-inset-bottom));
  }
}

/* 停止生成按钮 */
.stop-generate-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  margin: 16px auto;
  background: linear-gradient(135deg, #e53e3e 0%, #c53030 100%);
  color: white;
  border: none;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(229, 62, 62, 0.3);
}

.stop-generate-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 16px rgba(229, 62, 62, 0.4);
}

.stop-generate-btn:active {
  transform: scale(0.98);
}

.stop-generate-btn svg {
  flex-shrink: 0;
}