/* ReaChat 主样式文件 */

/* CSS 变量定义 */
:root {
  /* 颜色系统 */
  --color-primary: #6366f1;
  --color-primary-hover: #5855eb;
  --color-primary-light: #e0e7ff;
  --color-secondary: #64748b;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* 背景色 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-overlay: rgba(0, 0, 0, 0.5);
  
  /* 文本色 */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --text-inverse: #ffffff;
  
  /* 边框色 */
  --border-primary: #e2e8f0;
  --border-secondary: #cbd5e1;
  --border-focus: var(--color-primary);
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* 尺寸和间距 */
  --sidebar-width: 280px;
  --header-height: 60px;
  --input-height: 120px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', Consolas, 'Monaco', monospace;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --line-height-base: 1.5;
  
  /* 动画 */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* 基础重置和设置 */
* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  line-height: 1.5;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: font-size var(--transition-fast), line-height var(--transition-fast);
}

/* 为所有文本元素添加字体过渡效果 */
p, div, span, h1, h2, h3, h4, h5, h6, li, td, th {
  transition: font-size var(--transition-fast), line-height var(--transition-fast);
}

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

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

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

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

/* 应用布局 */
.app-container {
  display: flex;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

/* 侧边栏样式 */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal);
  z-index: 10;
  box-shadow: 8px 0 24px rgba(15, 23, 42, 0.04);
}

.sidebar-header {
  flex-shrink: 0;
  padding: 16px 16px 14px;
  border-bottom: 1px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-primary);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04);
}

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

.brand-icon {
  color: var(--color-primary);
}

.brand-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
  letter-spacing: 0;
}

.new-chat-btn {
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

.sidebar-content {
  min-height: 0;
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--bg-tertiary);
}

.chat-list-container {
  min-height: 0;
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: color-mix(in srgb, var(--bg-tertiary) 88%, var(--bg-primary));
}

.chat-list-header {
  padding: 15px 14px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-primary);
  background: var(--bg-primary);
}

.chat-list-title-group {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.chat-list-eyebrow {
  font-size: 10px;
  line-height: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-primary);
}

.chat-list-header h3 {
  margin: 0;
  font-size: 15px;
  line-height: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0;
}

.chat-list-header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.chat-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 10px 18px;
  margin: 0;
  list-style: none;
  scrollbar-gutter: stable;
  background: color-mix(in srgb, var(--bg-tertiary) 88%, var(--bg-primary));
}

.chat-item {
  position: relative;
  margin-bottom: 7px;
}

.sidebar-list-controls {
  display: flex;
  gap: 7px;
  padding: 10px 10px 11px;
  border-bottom: 1px solid var(--border-primary);
  background: var(--bg-secondary);
}
.sidebar-list-controls input { min-width: 0; width: 100%; }
.sidebar-list-controls select { max-width: 105px; }
.sidebar-list-controls input, .sidebar-list-controls select, .sidebar-page-action {
  height: 34px;
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  border-radius: 7px;
  padding: 6px 9px;
  font-size: 12px;
}
.sidebar-list-controls input:focus,
.sidebar-list-controls select:focus {
  outline: 2px solid color-mix(in srgb, var(--border-focus) 28%, transparent);
  border-color: var(--border-focus);
}
.sidebar-window-row { box-sizing: border-box; margin: 0; overflow: hidden; }
.sidebar-window-row > .chat-item-btn { height: 68px; }
.sidebar-page-action { width: 100%; height: 100%; cursor: pointer; }

.chat-item-btn {
  width: 100%;
  min-height: 68px;
  padding: 10px 38px 10px 10px;
  border: 1px solid var(--border-primary);
  background: var(--bg-primary);
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}

.chat-item-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  border-radius: inherit;
  opacity: 0;
  background: linear-gradient(115deg, transparent 12%, var(--chat-status-flow-start, transparent) 43%, var(--chat-status-flow-end, transparent) 58%, transparent 88%);
  background-size: 220% 100%;
  background-position: 120% 0;
}

.chat-item-btn > * {
  position: relative;
  z-index: 1;
}

.chat-item-btn[data-run-status="queued"],
.chat-item-btn[data-run-status="running"] {
  --chat-status-flow-start: color-mix(in srgb, #4f8cff 20%, transparent);
  --chat-status-flow-end: color-mix(in srgb, #8b5cf6 26%, transparent);
}

.chat-item-btn[data-run-status="completed"] {
  --chat-status-flow-start: color-mix(in srgb, #22c55e 22%, transparent);
  --chat-status-flow-end: color-mix(in srgb, #14b8a6 26%, transparent);
}

.chat-item-btn[data-run-status="failed"] {
  --chat-status-flow-start: color-mix(in srgb, #f97316 22%, transparent);
  --chat-status-flow-end: color-mix(in srgb, #ef4444 27%, transparent);
}

.chat-item-btn:is([data-run-status="interrupted"], [data-run-status="paused"]) {
  --chat-status-flow-start: color-mix(in srgb, #f59e0b 16%, transparent);
  --chat-status-flow-end: color-mix(in srgb, #64748b 25%, transparent);
  border-color: color-mix(in srgb, #f59e0b 34%, var(--border-primary));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, #f59e0b 12%, transparent);
}

.chat-item-btn:is([data-run-status="queued"], [data-run-status="running"])::after {
  opacity: 0.8;
  animation: chat-status-flow 3.8s ease-in-out infinite;
}

.chat-item-btn[data-run-status="completed"]::after {
  opacity: 0.7;
  background-size: 260% 100%;
  animation: chat-status-complete-sweep 1.6s cubic-bezier(0.2, 0.75, 0.35, 1) 1 both;
}

.chat-item-btn[data-run-status="failed"] {
  animation: chat-status-error-pulse 1.35s ease-in-out infinite;
}

.chat-item-btn[data-run-status="failed"]::after {
  opacity: 0.82;
  background-size: 170% 170%;
  animation: chat-status-error-flow 1.35s ease-in-out infinite;
}

.chat-item-btn:is([data-run-status="interrupted"], [data-run-status="paused"])::after {
  opacity: 0.5;
  background-size: 180% 100%;
  animation: chat-status-interrupted 2.8s ease-in-out infinite;
}

.chat-item-btn:hover {
  background-color: color-mix(in srgb, var(--bg-primary) 92%, var(--bg-tertiary));
  border-color: var(--border-secondary);
  box-shadow: 0 3px 9px rgba(15, 23, 42, 0.06);
  transform: translateY(-1px);
}

.chat-item-btn.active {
  position: relative;
  background-color: color-mix(in srgb, var(--color-primary) 8%, var(--bg-primary));
  border-color: color-mix(in srgb, var(--color-primary) 38%, var(--border-primary));
  color: var(--text-primary);
  box-shadow: 0 3px 10px rgba(99, 102, 241, 0.1);
}

.chat-item-btn.active::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--color-primary);
  z-index: 2;
  pointer-events: none;
}

.chat-item-btn:focus-visible,
.chat-group-header:focus-visible,
.chat-item-menu-btn:focus-visible,
.chat-group-menu-btn:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.chat-item-icon {
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  background: color-mix(in srgb, var(--bg-tertiary) 72%, var(--bg-primary));
  border-radius: 7px;
}

.chat-item-icon svg {
  width: 13px;
  height: 13px;
}

.chat-item-btn.active .chat-item-icon {
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 13%, var(--bg-primary));
}

.chat-item-btn.active .chat-item-title {
  font-weight: 700;
}

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

.chat-item-heading {
  display: flex;
  align-items: center;
  gap: 5px;
  padding-right: 48px;
}

.chat-item-heading .chat-item-title {
  min-width: 0;
  flex: 0 1 auto;
}

.chat-item-title {
  font-size: 13px;
  line-height: 18px;
  font-weight: 650;
  margin: 0 0 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-item-preview {
  min-width: 0;
  flex: 1;
  font-size: 11px;
  line-height: 16px;
  color: var(--text-tertiary);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-item-time {
  font-size: 10px;
  line-height: 14px;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.chat-item-meta {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.chat-item-state {
  min-width: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  flex: 0 0 auto;
}

.chat-item-run-status {
  position: absolute;
  top: 9px;
  right: 36px;
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 16px;
}

.chat-item-run-status[hidden] {
  display: none;
}

.chat-item-run-status svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chat-item-run-status.is-completed {
  color: #16803c;
}

.chat-item-run-status.is-failed {
  color: #c9362b;
}

.chat-item-run-status.is-interrupted {
  color: var(--text-tertiary);
}

.chat-item-run-status.is-paused {
  color: #b7791f;
}

.chat-item-run-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-primary);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: chat-run-spin 0.8s linear infinite;
}

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

@keyframes chat-status-flow {
  0%, 100% { background-position: 120% 0; }
  50% { background-position: -20% 0; }
}

@keyframes chat-status-complete-sweep {
  0% { opacity: 0; background-position: 120% 0; }
  42% { opacity: 0.9; background-position: 20% 0; }
  100% { opacity: 0.22; background-position: -20% 0; }
}

@keyframes chat-status-error-flow {
  0%, 100% { opacity: 0.28; background-position: 100% 50%; }
  50% { opacity: 0.95; background-position: 0 50%; }
}

@keyframes chat-status-error-pulse {
  0%, 100% { box-shadow: 0 3px 9px rgba(15, 23, 42, 0.06), 0 0 0 0 rgba(239, 68, 68, 0); }
  50% { box-shadow: 0 4px 12px rgba(15, 23, 42, 0.1), 0 0 0 2px rgba(239, 68, 68, 0.12); }
}

@keyframes chat-status-interrupted {
  0%, 100% { opacity: 0.24; background-position: 90% 0; }
  50% { opacity: 0.62; background-position: 10% 0; }
}

@media (prefers-reduced-motion: reduce) {
  .chat-item-btn:is([data-run-status="queued"], [data-run-status="running"], [data-run-status="completed"], [data-run-status="failed"], [data-run-status="interrupted"], [data-run-status="paused"])::after,
  .chat-item-btn[data-run-status="failed"],
  .chat-item-run-spinner {
    animation: none;
  }
}

.sidebar-footer {
  padding: 12px 12px 14px;
  border-top: 1px solid var(--border-primary);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-areas:
    "create create create"
    "settings usage theme";
  gap: 6px;
  background: color-mix(in srgb, var(--bg-secondary) 88%, var(--bg-primary));
  box-shadow: 0 -1px 0 rgba(15, 23, 42, 0.03);
}

.sidebar-footer .btn {
  min-width: 0;
  min-height: 38px;
  padding: 7px 10px;
  border: 1px solid var(--border-primary);
  border-radius: 8px;
  justify-content: flex-start;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.sidebar-footer .btn > svg {
  width: 15px;
  height: 15px;
  flex: 0 0 15px;
  color: var(--color-secondary);
}

.sidebar-footer .btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-secondary);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.sidebar-footer .btn:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 1px;
}

.sidebar-footer .sidebar-footer-icon {
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  height: 44px;
  padding: 0;
}

.sidebar-footer .sidebar-footer-icon > svg {
  width: 18px;
  height: 18px;
  flex-basis: 18px;
}

.sidebar-footer .theme-toggle {
  grid-area: theme;
  position: relative;
}

.sidebar-footer .create-group-btn {
  grid-area: create;
  justify-content: center;
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary-light) 54%, var(--bg-primary));
  border-color: color-mix(in srgb, var(--color-primary) 18%, var(--border-primary));
}

.sidebar-footer .create-group-btn > svg {
  color: var(--color-primary);
}

.sidebar-footer .settings-btn {
  grid-area: settings;
}

.sidebar-footer .usage-dashboard-btn {
  grid-area: usage;
}

.sidebar-footer .theme-toggle:hover {
  transform: translateY(-1px);
}

.sidebar-footer .theme-toggle .theme-icon {
  position: absolute;
  inset: 0;
  margin: auto;
}

/* 会话组样式 */
.chat-group-item {
  margin-bottom: 12px;
  border-left: 2px solid color-mix(in srgb, var(--color-primary) 36%, var(--border-primary));
  background: color-mix(in srgb, var(--bg-secondary) 72%, transparent);
  border-radius: 0 8px 8px 0;
  overflow: hidden;
}

.chat-group-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 8px;
  background: color-mix(in srgb, var(--bg-secondary) 82%, var(--bg-primary));
  border: 1px solid transparent;
  border-bottom-color: var(--border-primary);
  border-radius: 8px;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  cursor: pointer;
}

.chat-group-header:hover {
  background: var(--bg-primary);
  border-color: var(--border-primary);
}

.chat-group-header.drag-over {
  background: var(--color-primary-light);
  border: 2px dashed var(--color-primary);
}

.chat-group-toggle {
  padding: 4px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.chat-group-toggle:hover {
  color: var(--text-primary);
}

.chat-group-info {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.chat-group-name {
  font-size: 12px;
  line-height: 16px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.chat-group-count {
  font-size: 10px;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 12px;
  flex-shrink: 0;
}

.chat-group-menu-btn {
  padding: 4px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.chat-group-header:hover .chat-group-menu-btn {
  opacity: 1;
}

.chat-group-menu-btn:hover {
  color: var(--text-primary);
}

.chat-group-chats {
  margin: 0;
  padding: 5px 7px 3px 8px;
  list-style: none;
  transition: all var(--transition-fast);
  background: color-mix(in srgb, var(--bg-tertiary) 64%, transparent);
}

.chat-group-chats .chat-item {
  margin-left: 0;
  padding-left: 0;
}

/* 常驻图标 */
.chat-group-pin-icon {
  display: inline-flex;
  align-items: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* 收纳区段样式 */
.archive-section-item {
  margin-top: 16px;
  border-top: 1px dashed var(--border-secondary);
  padding: 10px 7px 0;
  background: color-mix(in srgb, var(--bg-secondary) 58%, transparent);
}

.archive-section-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 7px 8px;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  -webkit-user-select: none;
  user-select: none;
}

.archive-section-header:hover {
  background: var(--bg-primary);
  border-color: var(--border-primary);
}

.archive-section-toggle {
  padding: 4px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.archive-section-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-tertiary);
}

.archive-section-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.archive-section-count {
  font-size: var(--font-size-xs);
  background: var(--bg-tertiary);
  padding: 2px 8px;
  border-radius: 12px;
}

.archive-section-groups {
  margin: 0;
  padding: 3px 0 0;
  list-style: none;
}

/* 拖拽样式 */
.chat-item.dragging {
  opacity: 0.5;
}

.create-group-btn {
  justify-content: flex-start;
  gap: var(--spacing-sm);
}

.settings-btn,
.theme-toggle {
  justify-content: flex-start;
  gap: var(--spacing-sm);
}

.theme-toggle .theme-icon {
  transition: opacity var(--transition-fast);
}

/* 主内容区域 */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  min-width: 0;
}

.chat-header {
  height: var(--header-height);
  padding: 0 var(--spacing-lg);
  border-bottom: 1px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-primary);
  z-index: 5;
}

.chat-header .sidebar-toggle {
  display: none;
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 8px;
}

.sidebar .sidebar-close,
.sidebar-backdrop {
  display: none;
}

.sidebar-close {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
}

.sidebar-close svg,
.sidebar-toggle svg {
  width: 16px;
  height: 16px;
}

.chat-info h2 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-info {
  min-width: 0;
}

.chat-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: 2px;
}

.status-indicator {
  font-size: var(--font-size-xs);
  padding: 2px 6px;
  border-radius: 12px;
  font-weight: 500;
}

.status-connected {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.status-disconnected {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
}

.token-count {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  font-weight: 500;
}

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

.chat-header-toggle {
  display: none;
  flex: 0 0 auto;
  margin-left: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: transform var(--transition-fast);
}

.chat-header.is-collapsed {
  min-height: 44px;
  height: 44px;
}

.chat-header.is-collapsed .chat-info,
.chat-header.is-collapsed .chat-actions {
  display: none;
}

.chat-header.is-collapsed .chat-header-toggle {
  transform: rotate(180deg);
}

/* 聊天消息区域 */
.chat-messages {
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* 固定消息提示栏 */
.pinned-message-bar {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.pinned-message-bar:hover {
  background: var(--bg-secondary);
}

.pinned-message-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 0;
}

.pin-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.pinned-message-text {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pinned-message-actions {
  display: flex;
  gap: var(--spacing-xs);
  flex-shrink: 0;
}

.pinned-action-btn {
  padding: var(--spacing-xs);
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

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

.welcome-screen {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  transition: opacity var(--transition-normal);
}

.welcome-content {
  text-align: center;
  max-width: 500px;
}

.welcome-logo {
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
}

.welcome-content h2 {
  margin: 0 0 var(--spacing-sm) 0;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
}

.welcome-content p {
  margin: 0 0 var(--spacing-xl) 0;
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
}

.quick-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.quick-action-btn {
  padding: var(--spacing-lg);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-lg);
  background: var(--bg-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.quick-action-btn:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.quick-action-btn span:first-child {
  font-size: 24px;
}

.messages-container {
  height: 100%;
  overflow-y: auto;
  overflow-anchor: auto;
  padding: var(--spacing-lg);
  transition: opacity var(--transition-fast);
}

.context-compaction-history {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
}
.context-compaction-history[hidden] { display: none; }
.context-compaction-card {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: 10px;
  width: fit-content; min-width: 0; max-width: min(100%, 420px); padding: 5px 36px 5px 10px;
  border: 1px solid var(--border-primary); border-color: color-mix(in srgb, var(--color-primary) 18%, var(--border-primary));
  border-radius: 10px; background: var(--bg-primary);
  background: linear-gradient(110deg, color-mix(in srgb, var(--color-primary) 8%, var(--bg-primary)), color-mix(in srgb, var(--color-success) 4%, var(--bg-primary)));
  font-size: var(--font-size-xs); overflow-wrap: anywhere;
}
.context-compaction-card strong, .context-compaction-meta, .context-compaction-error { display: block; }
.context-compaction-title { grid-column: 1; grid-row: 1; display: flex; align-items: center; gap: 7px; min-width: 0; min-height: 26px; }
.context-compaction-title strong { flex-shrink: 0; font-size: inherit; font-weight: 600; white-space: nowrap; }
.context-compaction-title::before { content: ''; width: 6px; height: 6px; flex: 0 0 6px; border-radius: 50%; background: var(--color-primary, #3b82f6); }
.context-compaction-card[data-state="success"] .context-compaction-title::before { background: var(--color-success, #15803d); }
.context-compaction-card[data-state="incomplete"] .context-compaction-title::before { background: var(--color-warning, #d97706); }
.context-compaction-card[data-state="failed"] .context-compaction-title::before { background: var(--error-color, #b42318); }
.context-compaction-card[data-state="cancelled"] .context-compaction-title::before { background: var(--text-secondary); }
.context-compaction-mode { min-width: 0; padding-left: 7px; border-left: 1px solid var(--border-primary); color: var(--text-secondary); font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.context-compaction-note { margin: 5px 0; line-height: 1.6; color: var(--text-secondary); }
.context-compaction-details { grid-column: 1 / -1; grid-row: 2; min-width: 0; }
.context-compaction-icon { display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px; min-width: 26px; padding: 0; border: 0; border-radius: 6px; background: transparent; color: var(--text-secondary); cursor: pointer; }
.context-compaction-icon:hover { background: color-mix(in srgb, var(--color-primary) 10%, transparent); color: var(--color-primary); }
.context-compaction-icon:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.context-compaction-icon svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.context-compaction-details summary { position: absolute; top: 5px; right: 6px; list-style: none; }
.context-compaction-details summary::-webkit-details-marker { display: none; }
.context-compaction-details[open] summary svg { transform: rotate(180deg); }
.message-compaction-list { display: flex; flex-direction: row; flex-wrap: wrap; align-items: flex-start; gap: 6px; margin-bottom: 10px; max-width: 100%; }
.context-compaction-meta { margin-top: 4px; color: var(--text-secondary); line-height: 1.5; }
.context-compaction-error { margin-top: 4px; color: var(--error-color, #b42318); }
.context-compaction-actions { grid-column: 2; grid-row: 1; display: flex; gap: 2px; align-items: center; }
.context-compaction-actions .context-compaction-icon { width: 26px; min-width: 26px; height: 26px; min-height: 26px; padding: 0; }
.context-archive-dialog { width: min(820px, calc(100vw - 24px)); max-height: calc(100dvh - 32px); padding: 16px; border: 1px solid var(--border-color); border-radius: 8px; background: var(--bg-primary); color: var(--text-primary); overflow: auto; }
.context-archive-dialog::backdrop { background: rgba(0, 0, 0, 0.45); }
.context-archive-dialog header, .context-archive-dialog footer { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px; }
.context-archive-dialog h3 { font-size: 16px; margin: 0; }
.context-archive-reference { display: block; margin: 8px 0; overflow-wrap: anywhere; font-size: 12px; }
.context-archive-body { margin: 12px 0; min-height: 80px; }
.context-archive-source { max-height: 60dvh; padding: 10px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; font: 12px/1.6 var(--font-family-mono, monospace); background: var(--bg-secondary); border: 1px solid var(--border-color); }
.context-archive-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--border-color); }
.context-archive-row code { flex: 1 1 240px; min-width: 0; overflow-wrap: anywhere; }
@media (max-width: 480px) {
  .context-archive-dialog { padding: 12px; }
}

.message {
  margin-bottom: var(--spacing-lg);
  display: flex;
  gap: var(--spacing-md);
  max-width: 100%;
  opacity: 0;
  transform: translateY(20px);
  animation: messageSlideIn 0.4s ease-out forwards;
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.message.user .message-avatar {
  background: var(--color-primary);
  color: var(--text-inverse);
}

.message.assistant .message-avatar {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  transition: transform var(--transition-fast);
}

.message.assistant.streaming .message-avatar {
  animation: avatarPulse 2s ease-in-out infinite;
}

@keyframes avatarPulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.7);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0);
  }
}

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

.message.user .message-content {
  display: flex;
  justify-content: flex-end;
}

.message-bubble {
  max-width: 70%;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  word-wrap: break-word;
  position: relative;
}

.message.user .message-bubble {
  background: var(--color-primary);
  color: var(--text-inverse);
  border-bottom-right-radius: 4px;
}

.message.assistant .message-bubble {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border-primary);
  position: relative;
  overflow: hidden;
}

.message.assistant.streaming .message-bubble::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  animation: typingIndicator 1.5s ease-in-out infinite;
}

@keyframes typingIndicator {
  0%, 100% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(100%);
  }
}

.message.assistant .message-text {
  animation: typewriter 0.8s ease-out;
}

@keyframes typewriter {
  from {
    max-height: 0;
    opacity: 0;
  }
  to {
    max-height: 1000px;
    opacity: 1;
  }
}

.message-text {
  margin: 0;
  line-height: var(--line-height-base);
}

.message-text p {
  margin: 0 0 var(--spacing-sm) 0;
  line-height: inherit;
}

.message-text p:last-child {
  margin-bottom: 0;
}

.message-text pre {
  background: rgba(0, 0, 0, 0.05);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  overflow-x: auto;
  margin: var(--spacing-sm) 0;
  font-family: var(--font-family-mono);
  font-size: inherit;
  line-height: inherit;
}

.message-text code {
  font-family: var(--font-family-mono);
  font-size: 0.9em;
  background: rgba(0, 0, 0, 0.08);
  padding: 2px 4px;
  border-radius: 3px;
}

.message-text pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  line-height: inherit;
}

/* 富文本 Markdown 样式 */
.message-text .markdown-h1 {
  font-size: 1.5em;
  font-weight: 700;
  margin: var(--spacing-md) 0 var(--spacing-sm) 0;
  color: var(--text-primary);
  border-bottom: 2px solid var(--border-primary);
  padding-bottom: var(--spacing-xs);
}

.message-text .markdown-h2 {
  font-size: 1.3em;
  font-weight: 600;
  margin: var(--spacing-md) 0 var(--spacing-sm) 0;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-primary);
  padding-bottom: var(--spacing-xs);
}

.message-text .markdown-h3 {
  font-size: 1.1em;
  font-weight: 600;
  margin: var(--spacing-sm) 0 var(--spacing-xs) 0;
  color: var(--text-primary);
}

.message-text .markdown-h4 {
  font-size: 1.05em;
  font-weight: 600;
  margin: var(--spacing-sm) 0 var(--spacing-xs) 0;
  color: var(--text-primary);
  border-left: 3px solid var(--color-primary);
  padding-left: var(--spacing-sm);
}

.message-text .markdown-h5 {
  font-size: 1em;
  font-weight: 600;
  margin: var(--spacing-xs) 0 var(--spacing-xs) 0;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.message-text .markdown-h6 {
  font-size: 0.9em;
  font-weight: 500;
  margin: var(--spacing-xs) 0 var(--spacing-xs) 0;
  color: var(--text-tertiary);
  font-style: italic;
}

.message-text .markdown-bold {
  font-weight: 700;
  color: var(--text-primary);
}

.message-text .markdown-italic {
  font-style: italic;
  color: var(--text-secondary);
}

.message-text .markdown-bold-italic {
  font-weight: 700;
  font-style: italic;
  color: var(--text-primary);
}

.message-text .markdown-strikethrough {
  text-decoration: line-through;
  color: var(--text-tertiary);
}

.message-text .markdown-link {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-fast);
}

.message-text .markdown-link:hover {
  color: var(--color-primary-hover);
  border-bottom-color: var(--color-primary);
}

.message-text .markdown-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  margin: var(--spacing-sm) 0;
  display: block;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.message-text .markdown-blockquote {
  border-left: 4px solid var(--color-primary);
  background: var(--bg-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  margin: var(--spacing-sm) 0;
  color: var(--text-secondary);
  font-style: italic;
  position: relative;
}

.message-text .markdown-blockquote::before {
  content: '"';
  font-size: 2em;
  color: var(--color-primary);
  position: absolute;
  left: var(--spacing-sm);
  top: -5px;
  opacity: 0.3;
}

.message-text .markdown-ul,
.message-text .markdown-ol {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-lg);
  border-left: 2px solid var(--border-primary);
  padding-left: calc(var(--spacing-lg) + var(--spacing-sm));
  background: linear-gradient(to right, rgba(99, 102, 241, 0.02), transparent);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

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

.message-text .markdown-ol {
  list-style-type: decimal !important;
  list-style-position: outside !important;
  display: block !important;
  margin: var(--spacing-md) 0;
}

.message-text .markdown-ol li {
  display: list-item !important;
  list-style-type: decimal !important;
  list-style-position: outside !important;
  margin: var(--spacing-xs) 0 !important;
  padding: var(--spacing-xs) 0 !important;
  margin-left: 0 !important;
  position: relative;
  border-bottom: 1px solid rgba(226, 232, 240, 0.3);
  transition: all var(--transition-fast);
}

.message-text .markdown-ol li:last-child {
  border-bottom: none;
}

.message-text .markdown-ol li:hover {
  background: rgba(99, 102, 241, 0.04);
  border-radius: var(--spacing-xs);
  transform: translateX(2px);
}

.message-text .markdown-ul li {
  display: list-item !important;
  margin: var(--spacing-xs) 0 !important;
  padding: var(--spacing-xs) 0 !important;
  margin-left: 0 !important;
  position: relative;
  border-bottom: 1px solid rgba(226, 232, 240, 0.3);
  transition: all var(--transition-fast);
}

.message-text .markdown-ul li:last-child {
  border-bottom: none;
}

.message-text .markdown-ul li:hover {
  background: rgba(99, 102, 241, 0.04);
  border-radius: var(--spacing-xs);
  transform: translateX(2px);
}

.message-text .markdown-li {
  line-height: var(--line-height-base);
}

/* 嵌套列表样式支持 */
.message-text .markdown-li .markdown-ul {
  margin: var(--spacing-xs) 0 var(--spacing-xs) 0;
  padding-left: var(--spacing-md);
}

.message-text .markdown-li .markdown-ul .markdown-li {
  margin: 2px 0;
  font-size: 0.95em;
  line-height: 1.4;
}

/* 二级无序列表使用圆圈标记 */
.message-text .markdown-ol .markdown-ul {
  list-style-type: circle;
}

/* 三级及以上使用方形标记 */
.message-text .markdown-ol .markdown-ul .markdown-ul {
  list-style-type: square;
}

/* 表格容器包装 */
.message-text .markdown-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: var(--spacing-lg) 0;
  font-size: inherit;
  line-height: inherit;
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 
    0 4px 20px rgba(0, 0, 0, 0.08),
    0 2px 8px rgba(0, 0, 0, 0.04),
    0 1px 4px rgba(0, 0, 0, 0.02);
  border: 2px solid var(--border-primary);
  position: relative;
  backdrop-filter: blur(10px);
  background: linear-gradient(145deg, 
    rgba(255, 255, 255, 0.95) 0%, 
    rgba(248, 250, 252, 0.98) 100%);
}

/* 表格整体悬停效果 */
.message-text .markdown-table:hover {
  transform: translateY(-2px);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.12),
    0 4px 16px rgba(0, 0, 0, 0.06),
    0 2px 8px rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.3);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 表格装饰边框 */
.message-text .markdown-table::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, 
    var(--color-primary) 0%, 
    rgba(99, 102, 241, 0.8) 25%,
    rgba(168, 85, 247, 0.6) 50%,
    rgba(34, 197, 94, 0.6) 75%,
    rgba(99, 102, 241, 0.8) 100%);
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

/* 表头样式 */
.message-text .markdown-table thead {
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.08) 0%, 
    rgba(99, 102, 241, 0.04) 50%,
    rgba(168, 85, 247, 0.04) 100%);
  border-bottom: 3px solid var(--color-primary);
  position: relative;
}

.message-text .markdown-table thead::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(99, 102, 241, 0.3) 20%, 
    rgba(99, 102, 241, 0.6) 50%, 
    rgba(99, 102, 241, 0.3) 80%, 
    transparent 100%);
}

/* 表头单元格 */
.message-text .markdown-table th {
  padding: var(--spacing-md) var(--spacing-lg);
  font-weight: 700;
  color: var(--color-primary);
  text-align: left;
  border-right: 2px solid rgba(99, 102, 241, 0.15);
  position: relative;
  font-size: inherit;
  line-height: inherit;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: linear-gradient(180deg, 
    rgba(255, 255, 255, 0.1) 0%, 
    rgba(99, 102, 241, 0.02) 100%);
}

.message-text .markdown-table th:first-child {
  border-top-left-radius: var(--border-radius);
  padding-left: var(--spacing-xl);
}

.message-text .markdown-table th:last-child {
  border-right: none;
  border-top-right-radius: var(--border-radius);
  padding-right: var(--spacing-xl);
}

/* 表头悬停效果 */
.message-text .markdown-table th:hover {
  background: linear-gradient(180deg, 
    rgba(99, 102, 241, 0.1) 0%, 
    rgba(99, 102, 241, 0.05) 100%);
  color: var(--color-primary-hover);
  cursor: pointer;
  transition: all var(--transition-fast);
}

/* 表头图标装饰 */
.message-text .markdown-table th::before {
  content: '▎';
  position: absolute;
  left: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-primary);
  font-weight: bold;
  opacity: 0.6;
}

/* 数据行样式 */
.message-text .markdown-table tbody tr {
  background: var(--bg-primary);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.message-text .markdown-table tbody tr:nth-child(even) {
  background: linear-gradient(90deg, 
    rgba(248, 250, 252, 0.8) 0%, 
    rgba(241, 245, 249, 0.5) 100%);
}

.message-text .markdown-table tbody tr:hover {
  background: linear-gradient(90deg, 
    rgba(99, 102, 241, 0.08) 0%, 
    rgba(99, 102, 241, 0.04) 50%,
    rgba(168, 85, 247, 0.04) 100%);
  transform: translateX(4px) scale(1.002);
  border-left: 4px solid var(--color-primary);
  box-shadow: 
    0 4px 12px rgba(99, 102, 241, 0.15),
    inset 0 0 20px rgba(99, 102, 241, 0.02);
}

.message-text .markdown-table tbody tr:hover td {
  color: var(--text-primary);
  font-weight: 500;
}

.message-text .markdown-table tbody tr:last-child {
  border-bottom: none;
}

/* 数据单元格 */
.message-text .markdown-table td {
  padding: var(--spacing-md) var(--spacing-lg);
  border-right: 1px solid rgba(203, 213, 225, 0.4);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
  font-size: inherit;
  line-height: inherit;
  background: rgba(255, 255, 255, 0.02);
}

.message-text .markdown-table td:first-child {
  padding-left: var(--spacing-xl);
  font-weight: 600;
  color: var(--text-primary);
}

.message-text .markdown-table td:last-child {
  border-right: none;
  padding-right: var(--spacing-xl);
}

/* 单元格悬停效果 */
.message-text .markdown-table td:hover {
  background: rgba(99, 102, 241, 0.06);
  color: var(--color-primary);
  cursor: pointer;
  transform: scale(1.02);
  border-radius: var(--spacing-xs);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1);
}

/* 数据类型样式 */
.message-text .markdown-table td[style*="text-align: center"] {
  text-align: center !important;
  font-weight: 600;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(99, 102, 241, 0.02) 50%, 
    transparent 100%);
}

.message-text .markdown-table td[style*="text-align: right"] {
  text-align: right !important;
  font-family: var(--font-family-mono);
  font-weight: 600;
  color: var(--color-success);
}

/* 空表格状态 */
.message-text .markdown-table tbody:empty::after {
  content: '暂无数据';
  display: block;
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-tertiary);
  font-style: italic;
}

/* 表格响应式处理 */
@media (max-width: 768px) {
  .message-text .markdown-table {
    margin: var(--spacing-md) 0;
  }
  
  .message-text .markdown-table th,
  .message-text .markdown-table td {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .message-text .markdown-table th:first-child,
  .message-text .markdown-table td:first-child {
    padding-left: var(--spacing-md);
  }
  
  .message-text .markdown-table th:last-child,
  .message-text .markdown-table td:last-child {
    padding-right: var(--spacing-md);
  }
}

/* 暗色主题表格样式 */
[data-theme="dark"] .message-text .markdown-table {
  background: linear-gradient(145deg, 
    rgba(13, 17, 23, 0.95) 0%, 
    rgba(22, 27, 34, 0.98) 100%);
  border-color: #30363d;
  box-shadow: 
    0 4px 20px rgba(0, 0, 0, 0.3),
    0 2px 8px rgba(0, 0, 0, 0.2),
    0 1px 4px rgba(99, 102, 241, 0.1);
}

[data-theme="dark"] .message-text .markdown-table:hover {
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.4),
    0 4px 16px rgba(0, 0, 0, 0.3),
    0 2px 8px rgba(99, 102, 241, 0.2);
  border-color: rgba(99, 102, 241, 0.5);
}

[data-theme="dark"] .message-text .markdown-table::before {
  background: linear-gradient(90deg, 
    #58a6ff 0%, 
    rgba(88, 166, 255, 0.8) 25%,
    rgba(210, 168, 255, 0.6) 50%,
    rgba(126, 231, 135, 0.6) 75%,
    rgba(88, 166, 255, 0.8) 100%);
}

[data-theme="dark"] .message-text .markdown-table thead {
  background: linear-gradient(135deg, 
    rgba(88, 166, 255, 0.15) 0%, 
    rgba(88, 166, 255, 0.08) 50%,
    rgba(210, 168, 255, 0.08) 100%);
  border-bottom-color: #58a6ff;
}

[data-theme="dark"] .message-text .markdown-table thead::after {
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(88, 166, 255, 0.4) 20%, 
    rgba(88, 166, 255, 0.8) 50%, 
    rgba(88, 166, 255, 0.4) 80%, 
    transparent 100%);
}

[data-theme="dark"] .message-text .markdown-table th {
  color: #58a6ff;
  border-right-color: rgba(88, 166, 255, 0.2);
  background: linear-gradient(180deg, 
    rgba(22, 27, 34, 0.1) 0%, 
    rgba(88, 166, 255, 0.03) 100%);
}

[data-theme="dark"] .message-text .markdown-table th:hover {
  background: linear-gradient(180deg, 
    rgba(88, 166, 255, 0.15) 0%, 
    rgba(88, 166, 255, 0.08) 100%);
  color: #79c0ff;
}

[data-theme="dark"] .message-text .markdown-table th::before {
  color: #58a6ff;
}

[data-theme="dark"] .message-text .markdown-table tbody tr {
  background: rgba(13, 17, 23, 0.8);
  border-bottom-color: rgba(48, 54, 61, 0.6);
}

[data-theme="dark"] .message-text .markdown-table tbody tr:nth-child(even) {
  background: linear-gradient(90deg, 
    rgba(22, 27, 34, 0.8) 0%, 
    rgba(33, 38, 45, 0.5) 100%);
}

[data-theme="dark"] .message-text .markdown-table tbody tr:hover {
  background: linear-gradient(90deg, 
    rgba(88, 166, 255, 0.12) 0%, 
    rgba(88, 166, 255, 0.06) 50%,
    rgba(210, 168, 255, 0.06) 100%);
  border-left-color: #58a6ff;
  box-shadow: 
    0 4px 12px rgba(88, 166, 255, 0.2),
    inset 0 0 20px rgba(88, 166, 255, 0.03);
}

[data-theme="dark"] .message-text .markdown-table tbody tr:hover td {
  color: #f0f6fc;
}

[data-theme="dark"] .message-text .markdown-table td {
  border-right-color: rgba(48, 54, 61, 0.4);
  color: #8b949e;
  background: rgba(13, 17, 23, 0.02);
}

[data-theme="dark"] .message-text .markdown-table td:first-child {
  color: #e6edf3;
}

[data-theme="dark"] .message-text .markdown-table td:hover {
  background: rgba(88, 166, 255, 0.08);
  color: #58a6ff;
  box-shadow: 0 2px 8px rgba(88, 166, 255, 0.15);
}

[data-theme="dark"] .message-text .markdown-table td[style*="text-align: center"] {
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(88, 166, 255, 0.03) 50%, 
    transparent 100%);
}

[data-theme="dark"] .message-text .markdown-table td[style*="text-align: right"] {
  color: #7ee787;
}

[data-theme="dark"] .message-text .markdown-table tbody:empty::after {
  color: #6e7681;
}

.message-text .markdown-hr {
  border: none;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-primary), transparent);
  margin: var(--spacing-lg) 0;
}

.message-meta {
  margin-top: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.message.user .message-meta {
  justify-content: flex-end;
}

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

.message-action-btn {
  padding: 2px 4px;
  border: none;
  background: none;
  color: var(--text-tertiary);
  cursor: pointer;
  border-radius: 3px;
  transition: color var(--transition-fast);
}

.message-action-btn:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.05);
}

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

.message-action-btn:disabled:hover {
  color: var(--text-tertiary);
  background: none;
}

.message-delete-btn {
  color: var(--text-tertiary);
}

.message-delete-btn:hover {
  color: var(--color-error);
  background: rgba(239, 68, 68, 0.1);
}

/* 固定按钮样式 */
.pin-message-btn {
  color: var(--text-tertiary);
}

.pin-message-btn:hover {
  color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
}

.pin-message-btn.pinned {
  color: var(--color-primary);
}

.pin-message-btn.pinned:hover {
  color: var(--color-error);
  background: rgba(239, 68, 68, 0.1);
}

/* 消息编辑界面 */
.message-edit-container {
  width: 100%;
}

.message-edit-textarea {
  width: 100%;
  min-height: 80px;
  max-height: 200px;
  padding: var(--spacing-sm);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: inherit;
  line-height: 1.5;
  background: var(--bg-primary);
  color: var(--text-primary);
  resize: none;
  box-sizing: border-box;
}

.message-edit-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.message-edit-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  justify-content: flex-end;
}

/* 输入区域 */
.chat-input-container {
  border-top: 1px solid var(--border-primary);
  background: var(--bg-primary);
  padding: var(--spacing-lg);
  max-height: 1000px;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal), opacity var(--transition-normal), border-color var(--transition-normal);
}

.main-content.reading-mode .chat-input-container {
  max-height: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  border-top-color: transparent !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.chat-input-container.is-reading-collapsed {
  max-height: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.chat-input-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 0;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}

.chat-input-container.drag-over {
  outline: 2px dashed var(--color-primary);
  outline-offset: -4px;
  background: var(--bg-secondary);
}

.input-tools {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.input-tool-btn {
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
}

.input-area {
  position: relative;
  display: flex;
  align-items: flex-end;
  gap: var(--spacing-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  transition: border-color var(--transition-fast);
}

.input-area:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.message-input {
  flex: 1;
  min-width: 0;
  border: none;
  background: none;
  resize: none;
  outline: none;
  font-family: inherit;
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--text-primary);
  min-height: 24px;
  max-height: 200px;
}

.message-input::placeholder {
  color: var(--text-tertiary);
}

.send-btn {
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

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

.composer-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 4px;
}

.composer-actions .stop-btn {
  padding: var(--spacing-sm);
  background-color: var(--color-error);
  border-color: var(--color-error);
  color: var(--text-inverse);
}

.composer-actions .stop-btn[hidden] {
  display: none;
}

.composer-actions .stop-btn:hover {
  background-color: #dc2626;
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.composer-actions .stop-btn:disabled {
  opacity: 0.7;
  cursor: wait;
}

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

.input-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.model-selector {
  display: flex;
  flex-wrap: wrap;
  min-width: 0;
  max-width: 100%;
  align-items: center;
  gap: var(--spacing-sm);
}

.model-select {
  min-width: 0;
  max-width: 100%;
  border: 1px solid var(--border-primary);
  background: var(--bg-primary);
  padding: 4px 8px;
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid transparent;
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

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

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

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

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

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

.btn-ghost:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-sm {
  padding: 4px var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-lg);
}

/* 全局设置沿用对话设置的导航、标题和卡片层级。 */
#settings-modal {
  padding: 24px;
}

#settings-modal > .modal-content {
  width: min(1100px, 100%);
  max-width: 1100px;
  height: min(820px, calc(100dvh - 48px));
  max-height: calc(100dvh - 48px);
  border: 1px solid color-mix(in srgb, var(--border-primary) 72%, var(--color-primary));
  border-radius: 16px;
  box-shadow: 0 32px 100px rgba(15, 23, 42, .25), 0 8px 24px rgba(15, 23, 42, .1);
}

#settings-modal .modal-header {
  flex: 0 0 auto;
  min-height: 68px;
  padding: 14px 24px;
  background: color-mix(in srgb, var(--bg-primary) 84%, var(--color-primary-light));
}

#settings-modal .modal-header h3 { font-size: 17px; }
#settings-modal .close-btn { min-width: 40px; min-height: 40px; }

#settings-modal .modal-body {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  min-height: 0;
  padding: 0;
  overflow: hidden;
}

#settings-modal .settings-pagination {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  min-width: 0;
  margin: 0;
  padding: 20px 12px;
  overflow: auto;
  border-right: 1px solid var(--border-primary);
  border-bottom: 0;
  background: var(--bg-secondary);
}

#settings-modal .settings-page-tab {
  position: relative;
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  width: 100%;
  min-height: 42px;
  padding: 0 12px;
  border: 0;
  border-radius: 8px;
  text-align: left;
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

#settings-modal .settings-page-tab:hover {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--bg-primary) 70%, var(--color-primary-light));
  transform: translateX(2px);
}

#settings-modal .settings-page-tab.is-active {
  color: var(--color-primary);
  font-weight: 650;
  background: var(--bg-primary);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-primary) 18%, var(--border-primary)), var(--shadow-sm);
}

#settings-modal .settings-page-tab.is-active::before {
  position: absolute;
  left: -12px;
  width: 3px;
  height: 20px;
  border-radius: 0 4px 4px 0;
  background: var(--color-primary);
  content: "";
}

#settings-modal .settings-pages {
  min-width: 0;
  min-height: 0;
  overflow: auto;
  padding: 28px clamp(22px, 4vw, 48px) 36px;
  scrollbar-width: thin;
  overflow-wrap: anywhere;
}

#settings-modal .settings-section {
  width: min(100%, 820px);
  min-width: 0;
  margin: 0 auto;
}

#settings-modal .settings-section[hidden],
#settings-modal .modal-footer[hidden] { display: none; }

#settings-modal .settings-page-heading {
  margin: 0 0 26px;
  padding: 2px 0 19px;
  border-bottom: 1px solid var(--border-primary);
}

#settings-modal .settings-eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--color-primary);
  font-size: 10px;
  font-weight: 750;
}

#settings-modal .settings-page-heading h4 { margin: 0; font-size: 25px; font-weight: 680; }
#settings-modal .settings-page-heading p { margin: 7px 0 0; color: var(--text-secondary); font-size: 13px; line-height: 1.65; }

#settings-modal .settings-subsection-heading {
  position: relative;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 9px;
  margin: 24px 0 12px;
  padding: 0 0 9px 11px;
  border-bottom: 1px solid color-mix(in srgb, var(--border-primary) 72%, transparent);
}

#settings-modal .settings-subsection-heading::before {
  position: absolute;
  left: 0;
  top: 2px;
  width: 3px;
  height: 16px;
  border-radius: 0 3px 3px 0;
  background: color-mix(in srgb, var(--color-primary) 54%, var(--border-primary));
  content: "";
}

#settings-modal .settings-page-heading + .settings-subsection-heading { margin-top: 0; }
#settings-modal .settings-subsection-heading span { color: var(--color-primary); font-size: 9px; font-weight: 750; letter-spacing: 0; }
#settings-modal .settings-subsection-heading h5 { margin: 0; color: var(--text-primary); font-size: 14px; font-weight: 650; }
#settings-modal .settings-library { min-width: 0; margin-bottom: 28px; }
#settings-modal .settings-library > .settings-subsection-heading:first-child { margin-top: 0; }

#settings-modal .settings-section > .form-group,
#settings-modal #summary-connection-custom,
#settings-modal .settings-model-card,
#settings-modal .storage-subsection {
  min-width: 0;
  margin: 0 0 14px;
  padding: 17px 18px;
  border: 1px solid var(--border-primary);
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg-primary) 93%, var(--bg-secondary));
  box-shadow: 0 2px 8px rgba(15, 23, 42, .025);
}

#settings-modal .settings-section :is(.form-input, .form-select, .form-textarea) { min-width: 0; max-width: 100%; }
#settings-modal .settings-section .btn { max-width: 100%; white-space: normal; }
#settings-modal .form-help { line-height: 1.65; }
#settings-modal .settings-model-card legend { padding: 0 6px; color: var(--text-primary); font-size: 14px; font-weight: 650; }

/* Node inventory: live status first, creation and administration below. */
#settings-page-execution .execution-node { padding: 18px 20px 12px; border: 1px solid var(--border-primary); border-radius: 10px; background: var(--bg-secondary); }
#settings-page-execution :is(.execution-node-heading, .execution-section-heading, .execution-container-heading, .execution-sync-row, .execution-form-footer) { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
#settings-page-execution :is(h5, h6, p) { margin: 0; }
#settings-page-execution h5 { font-size: 15px; font-weight: 650; }
#settings-page-execution .execution-engine { margin: 10px 0 12px; color: var(--text-secondary); font-size: 13px; line-height: 1.7; }
#settings-page-execution .execution-sync-row { border-top: 1px solid var(--border-primary); padding-top: 9px; }
#settings-page-execution .execution-sync { color: var(--text-secondary); font-size: 11px; font-variant-numeric: tabular-nums; }
#settings-page-execution .execution-sync[data-tone="error"] { color: var(--color-error); }
#settings-page-execution .execution-badge { flex-shrink: 0; padding: 3px 9px; border: 1px solid var(--border-primary); border-radius: 5px; background: var(--bg-tertiary); color: var(--text-secondary); font-size: 11px; font-weight: 600; white-space: nowrap; }
#settings-page-execution .execution-badge[data-state="running"] { color: color-mix(in srgb, var(--color-success) 65%, var(--text-primary)); background: color-mix(in srgb, var(--color-success) 9%, var(--bg-primary)); border-color: color-mix(in srgb, var(--color-success) 24%, var(--border-primary)); }
#settings-page-execution .execution-badge:is([data-state="failed"], [data-state="unknown"]) { color: color-mix(in srgb, var(--color-warning) 65%, var(--text-primary)); background: color-mix(in srgb, var(--color-warning) 8%, var(--bg-primary)); }
#settings-page-execution .execution-notice { margin: 14px 0; padding: 11px 14px; border-left: 3px solid var(--color-primary); background: var(--bg-secondary); color: var(--text-secondary); font-size: 12px; line-height: 1.7; }
#settings-page-execution .execution-notice[data-tone="error"] { border-color: var(--color-error); }
#settings-page-execution .execution-notice[data-tone="success"] { border-color: var(--color-success); }
#settings-page-execution .execution-library { margin: 26px 0; }
#settings-page-execution .execution-section-heading { margin-bottom: 12px; flex-wrap: wrap; }
#settings-page-execution .execution-section-heading > span { color: var(--text-secondary); font-size: 11px; }
#settings-page-execution .execution-containers { border-top: 1px solid var(--border-primary); }
#settings-page-execution .execution-container { margin: 0; padding: 17px 0; border-bottom: 1px solid var(--border-primary); }
#settings-page-execution .execution-container-name { min-width: 0; font-size: 14px; font-weight: 650; overflow-wrap: anywhere; line-height: 1.5; }
#settings-page-execution .execution-container-project { margin-top: 8px; font-size: 12px; color: var(--text-secondary); line-height: 1.7; overflow-wrap: anywhere; }
#settings-page-execution .execution-container-meta { margin-top: 5px; color: var(--text-secondary); font-size: 11px; line-height: 1.7; }
#settings-page-execution .execution-container-notes { margin-top: 8px; color: var(--text-secondary); font-size: 12px; line-height: 1.7; white-space: pre-wrap; overflow-wrap: anywhere; }
#settings-page-execution .execution-container-observed { overflow-wrap: anywhere; margin-top: 4px; color: var(--text-secondary); font-size: 11px; line-height: 1.7; }
#settings-page-execution .execution-provision-label { margin-top: 12px; color: var(--text-primary); font-size: 12px; font-variant-numeric: tabular-nums; }
#settings-page-execution .execution-provision-progress { display: block; width: 100%; height: 7px; margin: 8px 0; border: 0; border-radius: 8px; overflow: hidden; appearance: none; background: var(--bg-tertiary); accent-color: var(--color-primary); }
#settings-page-execution .execution-provision-progress::-webkit-progress-bar { border-radius: 8px; background: var(--bg-tertiary); }
#settings-page-execution .execution-provision-progress::-webkit-progress-value { border-radius: 8px; background: var(--color-primary); }
#settings-page-execution .execution-provision-progress::-moz-progress-bar { border-radius: 8px; background: var(--color-primary); }
#settings-page-execution .execution-provision-progress[data-state="succeeded"] { accent-color: var(--color-success); }
#settings-page-execution .execution-provision-progress[data-state="succeeded"]::-webkit-progress-value { background: var(--color-success); }
#settings-page-execution .execution-provision-progress[data-state="succeeded"]::-moz-progress-bar { background: var(--color-success); }
#settings-page-execution .execution-provision-metrics { color: var(--text-secondary); font-size: 11px; line-height: 1.8; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
#settings-page-execution .execution-container-error { margin-top: 6px; color: var(--color-error); font-size: 12px; overflow-wrap: anywhere; }
#settings-page-execution .execution-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
#settings-page-execution .execution-actions .btn { padding: 6px 14px; min-height: 32px; font-size: 12px; }
#settings-page-execution .execution-footnote[data-tone="error"] { color: var(--color-error); }
#settings-page-execution .execution-footnote { margin-top: 10px; font-size: 11px; color: var(--text-secondary); line-height: 1.7; }
#settings-page-execution .execution-empty { padding: 24px 18px; border: 1px dashed var(--border-primary); border-radius: 8px; font-size: 13px; color: var(--text-secondary); line-height: 1.8; background: var(--bg-secondary); }
#settings-page-execution .execution-disclosure { margin: 0 0 14px; border: 1px solid var(--border-primary); border-radius: 10px; background: var(--bg-primary); }
#settings-page-execution .execution-disclosure > summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 17px 18px; cursor: pointer; list-style: none; font-size: 14px; font-weight: 650; }
#settings-page-execution .execution-disclosure > summary::-webkit-details-marker { display: none; }
#settings-page-execution .execution-disclosure > summary::after { content: "+"; color: var(--text-secondary); font-size: 20px; font-weight: 400; }
#settings-page-execution .execution-disclosure[open] > summary::after { content: "−"; }
#settings-page-execution .execution-disclosure summary small { display: block; margin-top: 4px; color: var(--text-secondary); font-size: 11px; font-weight: 400; }
#settings-page-execution .execution-form { padding: 2px 18px 18px; }
#settings-page-execution .execution-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px 18px; }
#settings-page-execution .execution-form label { display: flex; flex-direction: column; gap: 7px; min-width: 0; margin: 0; font-size: 12px; font-weight: 550; }
#settings-page-execution .execution-form .execution-full { grid-column: 1 / -1; }
#settings-page-execution .execution-form .execution-checkbox { flex-direction: row; align-items: center; gap: 9px; margin: 17px 0; font-weight: 400; }
#settings-page-execution .execution-checkbox input { flex-shrink: 0; accent-color: var(--color-primary); }
#settings-page-execution .execution-form :is(.form-input, .form-select) { width: 100%; box-sizing: border-box; font-size: 13px; }
#settings-page-execution .execution-form .form-help { display: block; margin: 12px 0; color: var(--text-secondary); font-size: 11px; }
#settings-page-execution .execution-credential-fields { margin: 15px 0; }
#settings-page-execution .execution-private-key { resize: vertical; font-family: monospace; font-size: 11px; overflow-wrap: anywhere; }
#settings-page-execution .execution-host-trust { display: grid; gap: 7px; margin: 14px 0; padding: 13px; border: 1px solid var(--border-primary); border-radius: 8px; background: var(--bg-secondary); font-size: 12px; }
#settings-page-execution .execution-host-trust code { overflow-wrap: anywhere; white-space: normal; }
#settings-page-execution .execution-host-trust small { color: var(--text-secondary); }
#settings-page-execution .execution-manual-enrollment { margin: 0 18px 18px; }
#settings-page-execution .execution-advanced { padding: 13px 0; border-top: 1px solid var(--border-primary); border-bottom: 1px solid var(--border-primary); }
#settings-page-execution .execution-advanced > summary { cursor: pointer; font-size: 12px; font-weight: 550; }
#settings-page-execution .execution-advanced > summary span { margin-left: 6px; color: var(--text-secondary); font-weight: 400; }
#settings-page-execution .execution-advanced[open] > summary { margin-bottom: 14px; }
#settings-page-execution .execution-form-footer { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border-primary); flex-wrap: wrap; }
#settings-page-execution .execution-form-footer > span { color: var(--text-secondary); font-size: 11px; }
#settings-page-execution .execution-form-footer .btn { margin-left: auto; }
#settings-page-execution .execution-delete { color: var(--color-danger, #d14343); border-color: currentColor; margin-left: auto; }
#settings-page-execution .execution-resource-editor { margin-top: 14px; padding-top: 16px; border: 1px solid var(--border-primary); border-radius: 8px; background: var(--bg-secondary); }
#settings-page-execution .execution-chat-permissions { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border-primary); }
#settings-page-execution .execution-chat-search { display: flex; gap: 8px; }
#settings-page-execution .execution-chat-search input { min-width: 0; }
#settings-page-execution .execution-chat-list { max-height: 270px; overflow-y: auto; margin: 12px 0; }
#settings-page-execution .execution-chat-choice { flex-direction: row; align-items: flex-start; gap: 9px; padding: 9px 4px; border-bottom: 1px solid var(--border-primary); }
#settings-page-execution .execution-chat-choice input { flex-shrink: 0; margin-top: 3px; accent-color: var(--color-primary); }
#settings-page-execution .execution-chat-choice span { min-width: 0; overflow-wrap: anywhere; }
#settings-page-execution .execution-chat-choice small { display: block; color: var(--text-secondary); font-weight: 400; margin-top: 4px; }
#settings-page-execution .execution-chat-permissions > button { margin: 6px 8px 0 0; max-width: 100%; white-space: normal; }
#settings-page-execution [hidden] { display: none !important; }
#settings-page-execution summary:focus-visible { outline: 2px solid var(--border-focus); outline-offset: 2px; border-radius: 6px; }
@media (max-width: 600px) {
  #settings-page-execution .execution-node { padding: 14px 14px 10px; }
  #settings-page-execution .execution-sync-row { align-items: flex-start; }
  #settings-page-execution .execution-sync { padding-top: 6px; line-height: 1.6; }
  #settings-page-execution .execution-sync-row .btn { flex-shrink: 0; }
  #settings-page-execution .execution-form-grid { grid-template-columns: minmax(0, 1fr); }
  #settings-page-execution .execution-form { padding: 0 14px 14px; }
  #settings-page-execution .execution-disclosure > summary { padding: 15px 14px; }
  #settings-page-execution .execution-form-footer { align-items: stretch; flex-direction: column; }
  #settings-page-execution .execution-form-footer .btn { margin-left: 0; width: 100%; }
}

#settings-modal .modal-footer {
  flex: 0 0 auto;
  min-height: 72px;
  padding: 14px 24px;
  background: color-mix(in srgb, var(--bg-primary) 92%, var(--bg-secondary));
}

[data-theme="dark"] #settings-modal > .modal-content {
  border-color: color-mix(in srgb, var(--border-primary) 76%, var(--color-primary));
  box-shadow: 0 32px 100px rgba(0, 0, 0, .58), 0 8px 24px rgba(0, 0, 0, .3);
}

[data-theme="dark"] #settings-modal .settings-section > .form-group,
[data-theme="dark"] #settings-modal #summary-connection-custom,
[data-theme="dark"] #settings-modal .settings-model-card,
[data-theme="dark"] #settings-modal .storage-subsection {
  background: color-mix(in srgb, var(--bg-primary) 90%, var(--bg-secondary));
}

@media (max-width: 768px) {
  #settings-modal { padding: 8px; }
  #settings-modal > .modal-content { height: calc(100dvh - 16px); max-height: calc(100dvh - 16px); border-radius: 12px; }
  #settings-modal .modal-header { min-height: 56px; padding: 8px 14px; }
  #settings-modal .modal-body { grid-template-columns: 96px minmax(0, 1fr); }
  #settings-modal .settings-pagination { gap: 5px; padding: 12px 6px; overflow-x: hidden; }
  #settings-modal .settings-page-tab { min-height: 44px; padding: 0 8px; font-size: 12px; white-space: normal; }
  #settings-modal .settings-page-tab:hover { transform: none; }
  #settings-modal .settings-page-tab.is-active::before { left: -6px; height: 18px; }
  #settings-modal .settings-pages { padding: 18px 12px max(22px, env(safe-area-inset-bottom)); }
  #settings-modal .settings-page-heading { margin-bottom: 18px; padding-bottom: 15px; }
  #settings-modal .settings-page-heading h4 { font-size: 21px; }
  #settings-modal .settings-subsection-heading { gap: 7px; margin-top: 20px; margin-bottom: 10px; }
  #settings-modal .settings-subsection-heading h5 { font-size: 13px; }
  #settings-modal .settings-subsection-heading span { font-size: 8px; }
  #settings-modal .settings-section > .form-group,
  #settings-modal #summary-connection-custom,
  #settings-modal .settings-model-card,
  #settings-modal .storage-subsection { padding: 14px; }
  #settings-modal .modal-footer { min-height: 64px; padding: 10px 14px max(10px, env(safe-area-inset-bottom)); }
}

/* 模态框样式 */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-overlay);
  backdrop-filter: blur(4px);
  transition: backdrop-filter var(--transition-normal);
}

.modal-content {
  position: relative;
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

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

.modal-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.close-btn {
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
}

.modal-body {
  flex: 1;
  padding: var(--spacing-lg);
  overflow-y: auto;
}

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-primary);
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
}

/* 表单组件 */
.settings-pagination {
  display: flex;
  gap: var(--spacing-xs);
  margin: calc(-1 * var(--spacing-lg)) calc(-1 * var(--spacing-lg)) var(--spacing-lg);
  padding: var(--spacing-md) var(--spacing-lg) 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--border-primary);
  scrollbar-width: thin;
}

.settings-page-tab {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 0 var(--spacing-md);
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  white-space: nowrap;
  cursor: pointer;
}

.settings-page-tab:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.settings-page-tab.is-active {
  border-bottom-color: var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
}

.settings-page-tab:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: -2px;
}

.settings-section {
  margin-bottom: var(--spacing-xl);
}

.settings-section:last-child {
  margin-bottom: 0;
}

.settings-section h4 {
  margin: 0 0 var(--spacing-md) 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

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

.form-group:last-child {
  margin-bottom: 0;
}

.section-description {
  margin: 0 0 var(--spacing-md) 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.4;
}

.storage-subsection {
  margin-top: 16px;
  padding: 16px;
  border: 1px solid var(--border-primary);
  border-radius: 10px;
  background: var(--bg-secondary);
}

.storage-subsection-heading {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
}

.storage-section-icon {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.storage-subsection-heading h5 {
  margin: 0;
  font-size: 13px;
  line-height: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.storage-subsection-heading p {
  margin: 3px 0 0;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 17px;
}

.storage-action-row,
.storage-action-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.storage-action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.storage-action-button {
  min-height: 36px;
  justify-content: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 600;
}

.storage-action-button svg {
  flex: 0 0 auto;
}

.storage-action-status {
  margin: 0;
  min-height: 18px;
}

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

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

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* 改进的滑块样式 */
.form-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  margin: var(--spacing-md) 0;
  background: linear-gradient(to right, var(--color-primary-light) 0%, var(--color-primary-light) var(--range-progress, 25%), var(--border-primary) var(--range-progress, 25%), var(--border-primary) 100%);
  border-radius: 3px;
  outline: none;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.form-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid var(--bg-primary);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  transition: all var(--transition-normal);
}

.form-range::-webkit-slider-thumb:hover {
  background: var(--color-primary-hover);
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.form-range::-webkit-slider-thumb:active {
  transform: scale(1.05);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

.form-range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid var(--bg-primary);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  transition: all var(--transition-normal);
}

.form-range::-moz-range-thumb:hover {
  background: var(--color-primary-hover);
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.form-range::-moz-range-track {
  width: 100%;
  height: 6px;
  cursor: pointer;
  background: transparent;
  border-radius: 3px;
}

.form-range:focus {
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* 滑块容器样式 */
.range-container {
  position: relative;
  margin: var(--spacing-md) 0;
}

.typography-settings-group {
  padding: var(--spacing-md);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
}

.typography-device-label {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.typography-settings-group .range-container + label {
  margin-top: var(--spacing-lg);
}

.range-container.disabled {
  opacity: 0.6;
}

.range-value {
  display: inline-block;
  min-width: 40px;
  padding: 2px 8px;
  margin-left: var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

/* 滑块标签 */
.range-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.form-checkbox {
  margin-right: var(--spacing-sm);
}

.form-help {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

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

.checkbox-option {
  margin-top: var(--spacing-sm);
}

/* 加载指示器 */
.loading-indicator {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-primary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  z-index: 1001;
}

.loading-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-primary);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* 通知系统 */
.notification-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 1002;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.notification {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  max-width: 300px;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  animation: slideIn 0.3s ease-out;
}

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

.notification.error {
  background: var(--color-error);
  color: white;
}

.notification.warning {
  background: var(--color-warning);
  color: white;
}

.notification.info {
  background: var(--color-primary);
  color: white;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
  .sidebar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    transform: translateX(-100%);
    z-index: 20;
    width: min(320px, calc(100% - 48px));
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
  }

  .sidebar .sidebar-close {
    display: inline-flex;
    font-size: 24px;
    padding: 0;
  }

  .sidebar-header {
    gap: 4px;
    padding: 6px 8px;
  }

  .sidebar-header .brand {
    flex: 1;
    gap: 6px;
  }

  .sidebar .brand-title {
    font-size: 17px;
  }

  .sidebar .brand-icon {
    width: 20px;
    height: 20px;
  }

  .sidebar .btn {
    min-height: 32px;
    padding: 6px 8px;
    font-size: 13px;
    gap: 6px;
  }

  .sidebar .sidebar-close,
  .sidebar .new-chat-btn {
    width: 32px;
    min-width: 32px;
    height: 32px;
    padding: 0;
  }

  .sidebar .sidebar-close {
    font-size: 22px;
  }

  .sidebar .chat-list-header {
    padding: 12px 10px 10px;
  }

  .sidebar .chat-list-header h3 {
    font-size: 14px;
    letter-spacing: 0;
  }

  .sidebar .chat-list {
    padding: 8px 7px 14px;
  }

  .sidebar .chat-item {
    margin-bottom: 5px;
  }

  .sidebar .chat-item-btn {
    padding: 8px 40px 8px 8px;
    gap: 6px;
  }

  .sidebar .chat-item-title {
    font-size: 13px;
    line-height: 18px;
    margin-bottom: 1px;
  }

  .sidebar .chat-item-run-status {
    right: 46px;
  }

  .sidebar .chat-item-preview,
  .sidebar .chat-item-time {
    font-size: 11px;
    line-height: 15px;
  }

  .sidebar .chat-item-meta {
    flex-direction: row;
    align-items: center;
    gap: 8px;
  }

  .sidebar .chat-item-state {
    gap: 5px;
  }

  .sidebar .chat-item-menu-btn,
  .sidebar .chat-group-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    min-height: 32px;
    padding: 4px;
    opacity: 1;
  }

  .sidebar .chat-group-item {
    margin-bottom: 4px;
  }

  .sidebar .chat-group-header,
  .sidebar .archive-section-header {
    padding: 6px 7px;
    gap: 4px;
  }

  .sidebar .chat-group-info {
    min-width: 0;
    gap: 4px;
  }

  .sidebar .chat-group-name {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }

  .sidebar .chat-group-name,
  .sidebar .archive-section-label {
    font-size: 13px;
  }

  .sidebar .chat-group-count,
  .sidebar .archive-section-count {
    padding: 1px 5px;
    font-size: 11px;
    flex-shrink: 0;
  }

  .sidebar .chat-group-toggle,
  .sidebar .archive-section-toggle {
    min-width: 28px;
    min-height: 28px;
    flex-shrink: 0;
  }

  .sidebar .chat-group-chats {
    padding: 4px 5px 2px 6px;
  }

  .sidebar .chat-group-chats .chat-item {
    margin-left: 0;
    padding-left: 0;
  }

  .sidebar .archive-section-item {
    margin-top: 12px;
    padding-top: 8px;
  }

  .sidebar-backdrop:not([hidden]) {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 19;
    border: 0;
    background: var(--bg-overlay);
  }

  .app-container {
    position: relative;
    height: var(--composer-viewport-height, 100dvh);
    min-height: 0;
  }

  .main-content,
  .chat-messages {
    min-height: 0;
  }

  .chat-header,
  .chat-input-container,
  .sidebar-footer {
    flex-shrink: 0;
  }

  .chat-header {
    gap: 8px;
    height: auto;
    min-height: calc(48px + env(safe-area-inset-top));
    padding-top: env(safe-area-inset-top);
  }

  .chat-info {
    flex: 1;
    min-width: 0;
  }

  .chat-info h2 {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 16px;
  }

  .chat-status {
    gap: 4px;
    flex-wrap: wrap;
  }

  .chat-actions {
    display: flex;
    flex-shrink: 0;
    gap: 0;
  }

  .btn,
  .model-select {
    min-height: 44px;
  }

  .sidebar-close,
  .sidebar-toggle,
  .chat-actions .btn,
  .chat-header-toggle,
  .input-tool-btn,
  .composer-actions .stop-btn,
  .send-btn {
    min-width: 44px;
    padding: 8px;
    flex-shrink: 0;
  }

  .chat-header-toggle {
    display: inline-flex;
  }

  .input-tools {
    flex-wrap: nowrap;
    gap: 4px;
    margin-bottom: 4px;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    padding-bottom: 2px;
  }

  .input-tools::-webkit-scrollbar {
    display: none;
  }

  .input-tool-btn {
    flex: 0 0 auto;
    min-width: 32px;
    min-height: 32px;
    height: 32px;
    padding: 6px;
    font-size: 12px;
  }

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

  .sidebar-footer {
    padding: 8px 8px max(10px, env(safe-area-inset-bottom));
    gap: 6px;
  }

  .sidebar-footer .btn {
    min-height: 44px;
  }

  .welcome-screen {
    overflow-y: auto;
    align-items: safe center;
    padding: 12px;
  }

  .welcome-content h2 {
    font-size: 22px;
  }

  .welcome-logo {
    margin-bottom: 8px;
  }

  .message-input {
    min-width: 0;
    min-height: 24px;
    max-height: min(160px, calc(var(--composer-viewport-height, 100dvh) * .22));
    overflow-y: auto;
  }

  input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),
  textarea,
  select,
  .form-input,
  .form-select,
  .form-textarea,
  .model-select {
    font-size: 16px;
  }

  .chat-input-container {
    display: flex;
    flex-shrink: 1;
    min-height: 0;
    max-height: calc(var(--composer-viewport-height, 100dvh) - 100px);
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    padding-left: max(8px, env(safe-area-inset-left));
    padding-right: max(8px, env(safe-area-inset-right));
  }

  .chat-input-wrapper > .input-tools,
  .chat-input-wrapper > .input-status {
    flex-shrink: 0;
  }

  .input-area {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: minmax(0, 1fr);
    align-items: end;
    min-height: 62px;
    max-height: min(178px, calc(var(--composer-viewport-height, 100dvh) * .22 + 18px));
    flex-shrink: 1;
    overflow: hidden;
  }

  .input-area .message-input {
    width: 100%;
    max-height: 100%;
  }

  .input-status {
    margin-top: 4px;
  }

  .model-selector {
    width: 100%;
    flex-wrap: nowrap;
    gap: 4px;
  }

  .model-select {
    min-height: 32px;
    height: 32px;
    padding: 2px 4px;
    font-size: 14px;
  }

  #model-select {
    flex: 1;
    width: 0;
  }

  #reasoning-effort-select {
    flex: 0 1 168px;
    width: 168px;
  }

  .message-actions {
    flex-wrap: wrap;
  }

  .message-action-btn {
    min-width: 36px;
    min-height: 36px;
  }

  .modal-content {
    max-height: calc(100dvh - 32px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  }

  .modal-header,
  .modal-footer {
    flex-shrink: 0;
    padding: 12px;
  }

  .modal-body {
    min-height: 0;
    padding: 12px;
    overflow-wrap: anywhere;
  }

  .modal-footer {
    flex-wrap: wrap;
  }

  .chat-list,
  .chat-messages,
  .modal-body,
  .settings-panel-body {
    overscroll-behavior: contain;
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .chat-header .sidebar-toggle {
    display: flex;
  }
  
  .main-content {
    width: 100%;
    isolation: isolate;
  }
  
  .chat-header {
    padding: env(safe-area-inset-top) max(8px, env(safe-area-inset-right)) 0 max(8px, env(safe-area-inset-left));
  }
  
  .chat-messages {
    padding: 0;
  }

  .messages-container {
    padding: 8px max(6px, env(safe-area-inset-right)) 8px max(6px, env(safe-area-inset-left));
  }

  .message {
    gap: 6px;
    margin-bottom: 12px;
  }

  .message-avatar {
    width: 24px;
    height: 24px;
    font-size: 12px;
  }
  
  .chat-input-container {
    padding-top: 4px;
  }
  
  .message-bubble {
    max-width: 85%;
    padding: 8px 10px;
  }
  
  .quick-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .modal {
    padding: var(--spacing-md);
  }
  
  .modal-content {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .input-area {
    padding: var(--spacing-sm);
  }
  
  .message-bubble {
    max-width: 90%;
  }
}

/* 模型管理样式 */
.model-list-container {
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.model-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.model-list {
  max-height: 300px;
  overflow-y: auto;
}

.model-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-primary);
  transition: background-color var(--transition-fast);
}

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

.model-item:hover {
  background: var(--bg-tertiary);
}

.model-info {
  flex: 1;
  min-width: 0;
}

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

.model-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-base);
}

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

.model-badge {
  padding: 2px 6px;
  border-radius: 12px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.model-badge.default {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.model-badge.custom {
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-primary);
}

.model-id {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-xs);
}

.model-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
  line-height: 1.4;
}

.model-tokens {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.model-actions {
  display: flex;
  gap: var(--spacing-xs);
  margin-left: var(--spacing-md);
}

.model-actions .btn {
  padding: var(--spacing-xs);
  border-radius: var(--border-radius);
}

.model-actions .btn:hover {
  background: rgba(0, 0, 0, 0.1);
}

.model-actions .delete-model-btn:hover {
  color: var(--color-error);
  background: rgba(239, 68, 68, 0.1);
}

.model-actions .edit-model-btn:hover {
  color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
}

.model-actions {
  display: flex;
  gap: var(--spacing-xs);
  margin-left: var(--spacing-md);
  padding: var(--spacing-md) 0;
  justify-content: center;
}

/* 深色主题下的模型管理样式调整 */
[data-theme="dark"] .model-item:hover {
  background: var(--bg-tertiary);
}

[data-theme="dark"] .model-actions .btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .model-actions .delete-model-btn:hover {
  background: rgba(239, 68, 68, 0.2);
}

[data-theme="dark"] .model-actions .edit-model-btn:hover {
  background: rgba(139, 92, 246, 0.2);
}

/* ============================================
   对话设置样式
============================================ */

/* 对话设置面板 */
.chat-settings-panel {
  position: absolute;
  top: auto;
  left: auto;
  width: min(380px, calc(100vw - 20px));
  max-height: min(620px, calc(100dvh - 20px));
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  overflow: hidden;
  display: none;
}

.settings-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-primary);
  background: var(--bg-secondary);
}

.settings-panel-header h4 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.settings-panel-body {
  padding: var(--spacing-md);
  overflow-y: auto;
  max-height: min(540px, calc(100dvh - 100px));
}

.download-settings {
  min-width: 0;
  margin-inline: 0;
  padding: 12px;
  border: 1px solid var(--border-primary);
  border-radius: 8px;
}
.download-settings legend { padding: 0 6px; font-weight: 600; }
.workspace-quota-usage { margin-top: 10px; font-size: 12px; overflow-wrap: anywhere; }
.workspace-quota-progress { display: block; width: 100%; height: 12px; margin: 8px 0; accent-color: var(--accent-primary, #3b82f6); }
.workspace-quota-progress.over-quota { accent-color: var(--error, #dc2626); }

@media (min-width: 769px) {
  #chat-settings-panel {
    width: min(1080px, calc(100vw - 64px));
    height: min(88dvh, 900px);
    max-height: calc(100dvh - 40px);
    border-radius: var(--border-radius-xl, 16px);
  }

  #chat-settings-panel .settings-panel-body {
    height: calc(min(88dvh, 900px) - 58px);
    max-height: none;
    padding: var(--spacing-xl) clamp(24px, 4vw, 48px);
  }
}

/* 对话设置分页：与全局设置保持一致，同时允许窄屏横向浏览标签。 */
.chat-settings-pagination {
  display: flex;
  gap: var(--spacing-xs);
  margin: calc(-1 * var(--spacing-md)) calc(-1 * var(--spacing-md)) var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md) 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--border-primary);
  scrollbar-width: thin;
}

.chat-settings-page-tab {
  flex: 1 0 auto;
  min-height: 36px;
  padding: 0 var(--spacing-md);
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  white-space: nowrap;
  cursor: pointer;
}

.chat-settings-page-tab:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.chat-settings-page-tab.is-active {
  border-bottom-color: var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
}

.chat-settings-page-tab:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: -2px;
}

.chat-settings-page[hidden] {
  display: none;
}

/* 新增对话区域 */
.add-message-section {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid color-mix(in srgb, var(--border-primary) 76%, transparent);
}

.add-message-section .form-group {
  margin-bottom: var(--spacing-md);
}

.add-message-section .form-group:last-of-type {
  margin-bottom: var(--spacing-sm);
}

.char-counter {
  display: block;
  text-align: right;
  color: var(--text-tertiary);
  font-size: 12px;
  margin-top: var(--spacing-xs);
}

/* 自定义对话列表区域 */
.custom-messages-section {
  margin-top: var(--spacing-lg);
}

.custom-messages-section .chat-settings-subsection-heading { margin-top: 0; margin-bottom: 12px; }

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

.section-header h5 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: var(--color-primary);
  color: var(--text-inverse);
  font-size: 11px;
  font-weight: 600;
  border-radius: 10px;
}

/* 自定义对话列表 */
.custom-messages-list {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
}

.custom-messages-list:empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
}

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

.empty-state svg {
  opacity: 0.5;
  margin-bottom: var(--spacing-sm);
}

.empty-state p {
  margin: var(--spacing-xs) 0;
  font-weight: 500;
  color: var(--text-secondary);
}

.empty-state small {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* 自定义消息项 */
.custom-message-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-primary);
  background: var(--bg-primary);
  transition: all 0.2s ease;
}

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

.custom-message-item:hover {
  background: var(--bg-tertiary);
}

/* 角色标识 */
.role-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  height: 24px;
  padding: 0 var(--spacing-sm);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  border-radius: 12px;
  flex-shrink: 0;
}

.role-badge.role-user {
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.role-badge.role-assistant {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* 消息预览 */
.message-preview {
  flex: 1;
  font-size: 13px;
  line-height: 1.4;
  color: var(--text-secondary);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-top: 2px;
}

/* 消息操作按钮 */
.custom-message-item .message-actions {
  display: flex;
  gap: var(--spacing-xs);
  opacity: 0;
  transition: opacity 0.2s ease;
}

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

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text-tertiary);
}

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

.action-btn.edit:hover {
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-primary);
}

.action-btn.delete:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
}

.action-btn.move-up:hover,
.action-btn.move-down:hover {
  background: rgba(100, 116, 139, 0.1);
  color: var(--color-secondary);
}

/* 自定义消息标识 */
.message.custom-message {
  position: relative;
  border-left: 3px solid var(--color-primary);
  padding-left: calc(var(--spacing-md) + 3px) !important;
}

.message.custom-message::before {
  content: '自定义';
  position: absolute;
  top: var(--spacing-xs);
  right: var(--spacing-xs);
  font-size: 10px;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
}

/* 深色主题适配 */
[data-theme="dark"] .chat-settings-panel {
  background: var(--bg-primary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .settings-panel-header {
  background: var(--bg-secondary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .custom-messages-list {
  background: var(--bg-tertiary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .custom-message-item {
  background: var(--bg-secondary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .custom-message-item:hover {
  background: var(--bg-primary);
}

[data-theme="dark"] .role-badge.role-user {
  background: rgba(139, 92, 246, 0.2);
  color: #a78bfa;
  border-color: rgba(139, 92, 246, 0.3);
}

[data-theme="dark"] .role-badge.role-assistant {
  background: rgba(52, 211, 153, 0.2);
  color: #6ee7b7;
  border-color: rgba(52, 211, 153, 0.3);
}

/* ==============================================
   文件上传相关样式
   ============================================== */

/* 文件上传面板 */
.file-upload-panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.file-upload-content {
  width: 500px;
  max-width: 90vw;
  max-height: 80vh;
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1001;
  margin: auto;
}


.file-upload-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-primary);
  background: var(--bg-secondary);
}

.file-upload-header h4 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.file-upload-body {
  padding: var(--spacing-md);
  overflow-y: auto;
  flex: 1;
}

/* 拖拽上传区域 */
.file-drop-zone {
  border: 2px dashed var(--border-secondary);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  background: var(--bg-secondary);
  transition: all 0.2s ease;
  cursor: pointer;
  margin-bottom: var(--spacing-lg);
}

.file-drop-zone:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.file-drop-zone.drag-over {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  transform: scale(1.02);
}

.drop-zone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.drop-zone-content svg {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.file-drop-zone:hover .drop-zone-content svg,
.file-drop-zone.drag-over .drop-zone-content svg {
  color: var(--color-primary);
}

.drop-zone-content h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.drop-zone-content p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.drop-zone-content .paste-hint {
  font-size: 13px;
  color: var(--text-tertiary);
  font-style: italic;
  padding: 4px 8px;
  background: var(--bg-primary);
  border-radius: 4px;
  border: 1px dashed var(--border-secondary);
}

/* 上传进度 */
.upload-progress {
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--border-primary);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  transition: width 0.3s ease;
  border-radius: 4px;
}

.progress-text {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: var(--text-secondary);
}

/* 已上传文件列表 */
.uploaded-files-section {
  margin-top: var(--spacing-lg);
}

.uploaded-files-list {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
}

.uploaded-file-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-primary);
  transition: background-color 0.2s ease;
}

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

.uploaded-file-item:hover {
  background: var(--bg-tertiary);
}

.file-icon {
  margin-right: var(--spacing-sm);
  color: var(--text-secondary);
  flex-shrink: 0;
}

.file-info {
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.file-meta {
  display: flex;
  gap: var(--spacing-sm);
  font-size: 12px;
  color: var(--text-tertiary);
}

.file-type {
  background: var(--color-primary);
  color: white;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 500;
  text-transform: uppercase;
  font-size: 10px;
}

.file-actions {
  display: flex;
  gap: var(--spacing-xs);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.uploaded-file-item:hover .file-actions {
  opacity: 1;
}

.action-btn {
  background: none;
  border: none;
  padding: 4px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.action-btn.remove-btn:hover {
  background: var(--color-error);
  color: white;
}

/* 文件预览模态框 */
.file-preview-modal {
  z-index: 1100;
}

.file-preview-content {
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
}

.image-preview {
  text-align: center;
  padding: var(--spacing-md);
}

.image-preview img {
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.csv-preview-container,
.text-preview {
  max-height: 60vh;
  overflow: auto;
  padding: var(--spacing-md);
}

/* CSV预览样式 */
.csv-preview {
  font-family: var(--font-family);
}

.csv-summary {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  font-size: 12px;
  color: var(--text-secondary);
}

.csv-table-container {
  overflow: auto;
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-sm);
}

.csv-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.csv-table th,
.csv-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-primary);
  border-right: 1px solid var(--border-primary);
}

.csv-table th {
  background: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-primary);
  position: sticky;
  top: 0;
  z-index: 1;
}

.csv-table td {
  color: var(--text-secondary);
}

.csv-table th:last-child,
.csv-table td:last-child {
  border-right: none;
}

.csv-more {
  text-align: center;
  padding: var(--spacing-sm);
  color: var(--text-tertiary);
  font-size: 12px;
  font-style: italic;
}

.text-preview pre {
  background: var(--bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  overflow: auto;
  font-size: 13px;
  line-height: 1.5;
  margin: 0;
}

.text-truncated {
  text-align: center;
  padding: var(--spacing-sm);
  color: var(--text-tertiary);
  font-size: 12px;
  font-style: italic;
}

/* 输入区域文件预览 */
.file-preview-area {
  padding: 4px 0;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border-primary);
  background: var(--bg-secondary);
}

.file-preview-list {
  display: flex;
  flex-wrap: nowrap;
  gap: 4px;
  min-width: 0;
}

.file-preview-list.is-expanded {
  flex-wrap: wrap;
  max-height: min(120px, calc(var(--composer-viewport-height, 100dvh) * .16));
  overflow-y: auto;
  overscroll-behavior: contain;
}

.file-preview-item {
  display: flex;
  flex: 0 1 200px;
  min-width: 0;
  height: 40px;
  gap: 4px;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  font-size: 12px;
  max-width: 200px;
}

.file-preview-item.image-preview {
  flex-direction: row;
  padding: var(--spacing-xs);
  max-width: 200px;
}

.file-preview-item > .file-preview-name {
  flex: 1;
  min-width: 0;
}

.file-preview-toggle {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 4px 8px;
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  background: var(--bg-primary);
  color: var(--text-secondary);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.file-preview-thumbnail {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 4px;
  object-fit: cover;
}

.file-preview-info {
  flex: 1;
  min-width: 0;
  margin-right: var(--spacing-xs);
}

.file-preview-name {
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.file-preview-size {
  color: var(--text-tertiary);
  font-size: 10px;
}

.file-preview-remove {
  flex-shrink: 0;
  min-width: 28px;
  min-height: 32px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 2px;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.file-preview-remove:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
}

/* 深色主题适配 */
[data-theme="dark"] .file-upload-panel {
  background: var(--bg-primary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .file-upload-header {
  background: var(--bg-secondary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .file-drop-zone {
  background: var(--bg-secondary);
  border-color: var(--border-secondary);
}

[data-theme="dark"] .file-drop-zone:hover,
[data-theme="dark"] .file-drop-zone.drag-over {
  background: rgba(99, 102, 241, 0.1);
  border-color: var(--color-primary);
}

[data-theme="dark"] .uploaded-files-list {
  background: var(--bg-secondary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .uploaded-file-item {
  border-color: var(--border-primary);
}

[data-theme="dark"] .uploaded-file-item:hover {
  background: var(--bg-primary);
}

[data-theme="dark"] .csv-table th {
  background: var(--bg-tertiary);
}

/* 消息中的文件显示 */
.message-files {
  margin-bottom: var(--spacing-sm);
}

.message-image {
  margin-bottom: var(--spacing-sm);
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
}

.message-image-content {
  width: 100%;
  max-width: 300px;
  height: auto;
  display: block;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

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

.message-image-caption {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-primary);
}

.message-file {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-xs);
}

.message-file .file-icon {
  margin-right: var(--spacing-sm);
  color: var(--text-secondary);
}

.message-file .file-info {
  flex: 1;
}

.message-file .file-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.message-file .file-size {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

/* 响应式调整 */
@media (max-width: 480px) {
  .file-upload-content {
    width: calc(100vw - var(--spacing-lg));
    max-height: 90vh;
  }
  
  .drop-zone-content h3 {
    font-size: 16px;
  }
  
  .file-actions {
    opacity: 1;
  }
  
  .file-preview-content {
    margin: var(--spacing-sm);
    max-width: calc(100vw - var(--spacing-lg));
    max-height: calc(100vh - var(--spacing-lg));
  }
  
  .message-image-content {
    max-width: 250px;
  }
}
@media (max-width: 768px) {
  .chat-settings-panel {
    width: calc(100vw - var(--spacing-md));
    max-height: calc(100dvh - var(--spacing-md));
    left: var(--spacing-xs);
    right: var(--spacing-xs);
  }

  .chat-settings-panel .settings-panel-body {
    max-height: calc(100dvh - 76px);
    padding: var(--spacing-sm);
  }

  .chat-settings-pagination {
    margin: calc(-1 * var(--spacing-sm)) calc(-1 * var(--spacing-sm)) var(--spacing-sm);
    padding-inline: var(--spacing-sm);
  }
  
  .custom-message-item {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .custom-message-item .message-actions {
    opacity: 1;
    align-self: flex-end;
  }
  
  .message-preview {
    white-space: normal;
    overflow: visible;
    text-overflow: initial;
  }
}

@media (max-width: 480px) {
  .chat-settings-panel {
    width: calc(100vw - var(--spacing-sm));
    max-height: calc(100dvh - var(--spacing-xs));
  }

  .chat-settings-panel .settings-panel-header {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .chat-settings-panel .settings-panel-body {
    max-height: calc(100dvh - 68px);
  }

  .chat-settings-page-tab {
    min-height: 34px;
    padding-inline: var(--spacing-sm);
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 768px) {
  .model-item {
    flex-direction: column;
    align-items: stretch;
  }
  
  .model-actions {
    margin-left: 0;
    margin-top: var(--spacing-sm);
    justify-content: flex-end;
  }
  
  .model-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }
}

/* ====================================
   消息导航栏样式
   ==================================== */

.message-navigator {
  position: fixed;
  right: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-primary);
  padding: var(--spacing-sm);
  transition: all 0.3s ease;
  opacity: 0.8;
}

.message-navigator:hover {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-xl);
  opacity: 1;
}

.navigator-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.nav-btn:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  transform: scale(1.05);
}

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

.nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.nav-btn:disabled:hover {
  background: transparent;
  color: var(--text-secondary);
}

.nav-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-radius: var(--border-radius);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-family);
  border: 1px solid var(--border-primary);
}

/* 深色主题适配 */
[data-theme="dark"] .message-navigator {
  background: rgba(30, 35, 44, 0.7);
  border-color: var(--border-primary);
}

[data-theme="dark"] .message-navigator:hover {
  background: rgba(30, 35, 44, 0.98);
  opacity: 1;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .message-navigator {
    right: var(--spacing-md);
    transform: translateY(-50%) scale(0.9);
  }
  
  .nav-btn {
    width: 32px;
    height: 32px;
  }
  
  .nav-btn svg {
    width: 14px;
    height: 14px;
  }
  
  .nav-indicator {
    min-width: 40px;
    padding: 2px var(--spacing-xs);
    font-size: 11px;
  }
}

/* 小屏幕时隐藏导航栏（可选） */
@media (max-width: 480px) {
  .message-navigator {
    display: none;
  }
}

/* 消息高亮效果 */
.message-highlight {
  background: rgba(99, 102, 241, 0.1);
  border-left: 3px solid var(--color-primary);
  transform: translateX(2px);
  transition: all 0.3s ease;
}

[data-theme="dark"] .message-highlight {
  background: rgba(99, 102, 241, 0.15);
}
/* 摘要设置样式 */

/* 摘要内容区域 */
.summary-content {
  margin-top: var(--spacing-md);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--bg-secondary);
}

.summary-content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-primary);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.summary-content-header:hover {
  background: var(--bg-secondary);
}

.summary-content-header span {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.summary-content-body {
  max-height: 500px;
  overflow-y: auto;
}

.summary-merge-toolbar {
  position: sticky;
  top: 0;
  z-index: 1;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-primary);
  background: var(--bg-primary);
}

.summary-selection-status {
  flex: 1 1 100%;
  min-width: 0;
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  line-height: 1.4;
}

.summary-merge-toolbar .btn {
  flex: 1 1 160px;
  justify-content: center;
  white-space: nowrap;
}

.summary-merge-toolbar .btn:disabled,
.summary-action-btn:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.summary-message-item {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-primary);
  transition: background-color var(--transition-fast);
}

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

.summary-message-item:hover {
  background: var(--bg-primary);
}

.summary-message-item.selected {
  background: rgba(99, 102, 241, 0.08);
  box-shadow: inset 3px 0 0 var(--color-primary);
}

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

.summary-message-identity {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: var(--spacing-sm);
}

.summary-select-control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.summary-select-checkbox {
  width: 14px;
  height: 14px;
  margin: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.summary-select-checkbox:disabled {
  cursor: not-allowed;
}

.summary-message-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
}

.summary-message-meta {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

/* 摘要预览文本 */
.summary-message-preview {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  white-space: pre-wrap;
  margin-bottom: var(--spacing-sm);
  display: block;
}

/* 摘要完整内容 */
.summary-message-full {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  white-space: pre-wrap;
  margin-bottom: var(--spacing-sm);
  display: block;
}

/* 折叠状态：隐藏完整内容 */
.summary-message-item.collapsed .summary-message-full {
  display: none;
}

/* 展开状态：隐藏预览 */
.summary-message-item:not(.collapsed) .summary-message-preview {
  display: none;
}

/* 操作按钮容器 */
.summary-message-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

/* 操作按钮 */
.summary-action-btn {
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
}

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

.summary-action-btn svg {
  flex-shrink: 0;
}

.summary-action-btn .action-text {
  white-space: nowrap;
}

/* 危险操作按钮 */
.summary-action-btn-danger:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
  border-color: var(--color-error);
}

.summary-message-content {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  white-space: pre-wrap;
}

.summary-progress {
  margin: var(--spacing-sm) 0;
}

.summary-progress-header {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-bottom: 6px;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.summary-progress-track {
  height: 6px;
  overflow: hidden;
  border-radius: 3px;
  background: var(--bg-tertiary);
}

.summary-progress-bar {
  width: 0;
  height: 100%;
  background: var(--color-primary);
  transition: width 0.2s ease;
}

.summary-progress-bar.error {
  background: var(--color-error);
}

.summary-block-response-debug {
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
}

.summary-block-response-debug summary {
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
}

.summary-block-response-debug-meta,
.summary-block-response-debug-text {
  margin: 0;
  padding: var(--spacing-sm) var(--spacing-md);
  border-top: 1px solid var(--border-primary);
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.summary-block-response-debug-text {
  max-height: 320px;
  overflow: auto;
  background: var(--bg-primary);
  font-family: var(--font-family-mono, monospace);
}

/* form-textarea 样式 */
.form-textarea {
  width: 100%;
  min-height: 80px;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
  resize: vertical;
}

.form-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* range-display 样式 */
.range-display {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-left: var(--spacing-sm);
}

/* status-value 样式 */
.status-value.active {
  color: var(--color-success);
}

.status-value.warning {
  color: var(--color-warning);
}

.status-value.inactive {
  color: var(--text-tertiary);
}

/* 深色主题适配 */
[data-theme="dark"] .summary-content {
  background: var(--bg-tertiary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .summary-content-header {
  background: var(--bg-secondary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .summary-content-header:hover {
  background: var(--bg-tertiary);
}

[data-theme="dark"] .summary-message-item {
  border-color: var(--border-primary);
}

[data-theme="dark"] .summary-message-item:hover {
  background: var(--bg-secondary);
}

[data-theme="dark"] .summary-message-item.selected {
  background: rgba(99, 102, 241, 0.16);
}

[data-theme="dark"] .summary-merge-toolbar {
  background: var(--bg-secondary);
}

[data-theme="dark"] .summary-action-btn {
  background: var(--bg-secondary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .summary-action-btn:hover {
  background: var(--bg-tertiary);
}

@media (max-width: 768px) {
  .summary-merge-toolbar {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .summary-selection-status {
    flex: 1 1 180px;
  }

  .summary-merge-toolbar .btn {
    flex: 1 1 160px;
    justify-content: center;
  }

  .summary-message-header {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
  }

  .summary-message-meta {
    margin-left: 24px;
  }

  .summary-message-actions {
    flex-wrap: wrap;
    opacity: 1;
  }
}

/* Toggle Switch 样式 */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border-secondary);
  transition: .3s;
  border-radius: 24px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--color-primary);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(20px);
}

/* 摘要设置区段样式 */
.summary-settings-section {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid color-mix(in srgb, var(--border-primary) 76%, transparent);
}

.summary-save-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
}

.summary-save-status[hidden] {
  display: none;
}

.summary-save-status[data-state="failed"],
.summary-save-status[data-state="cache-failed"] {
  color: var(--color-danger, #b42318);
}

.summary-config {
  margin-top: var(--spacing-md);
}

.summary-status {
  margin-top: var(--spacing-lg);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

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

.status-label {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  font-weight: 500;
}

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

.summary-compression-status {
  grid-column: 1 / -1;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  min-width: 0;
}

.summary-compression-status-text {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  min-width: 0;
}

.summary-threshold {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--color-primary);
}

.summary-threshold[hidden] {
  display: none;
}

.summary-threshold.is-ready {
  color: var(--color-warning);
}

.summary-threshold-ring {
  position: relative;
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
}

.summary-threshold-ring svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  fill: none;
  stroke-width: 4;
  transform: rotate(-90deg);
}

.summary-threshold-track {
  stroke: var(--border-primary);
}

.summary-threshold-fill {
  stroke: currentColor;
  stroke-dasharray: 0 100;
  stroke-linecap: round;
}

.summary-threshold-value {
  max-width: 46px;
  overflow-wrap: anywhere;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.15;
  text-align: center;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

.summary-threshold > .status-label {
  white-space: nowrap;
}

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

/* ==================== 工具调用样式 ==================== */

.message-tool-trace {
  margin-bottom: 12px;
}

.manager-tool-trace {
  border: 1px solid var(--border-primary);
  border-left: 3px solid var(--color-primary);
  border-radius: 6px;
  background: var(--bg-tertiary);
  overflow: hidden;
}

.manager-tool-trace-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px 4px;
}

.manager-tool-trace-title {
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
}

.manager-tool-trace-summary,
.manager-tool-trace-hint {
  color: var(--text-secondary);
  font-size: 11px;
}

.manager-tool-trace-chain {
  display: flex;
  align-items: center;
  gap: 5px;
  overflow-x: auto;
  padding: 4px 12px 10px;
  white-space: nowrap;
}

.manager-tool-trace-step {
  border: 1px solid var(--border-primary);
  border-radius: 4px;
  padding: 3px 7px;
  color: var(--text-primary);
  background: var(--bg-primary);
  font-size: 11px;
}

.manager-tool-trace-step.success {
  border-color: color-mix(in srgb, var(--color-success) 55%, var(--border-primary));
}

.manager-tool-trace-step.pending {
  border-color: color-mix(in srgb, var(--color-warning) 55%, var(--border-primary));
}

.manager-tool-trace-step.error {
  border-color: color-mix(in srgb, var(--color-error) 55%, var(--border-primary));
}

.manager-tool-trace-arrow {
  color: var(--text-tertiary);
  font-size: 16px;
}

.manager-tool-trace-empty {
  color: var(--text-secondary);
  font-size: 11px;
}

.manager-tool-trace-hint {
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  padding: 0 12px 9px;
  color: var(--text-secondary);
  font: inherit;
  font-size: 11px;
  text-align: left;
  cursor: pointer;
}

.manager-tool-trace-hint:hover:not(:disabled) {
  color: var(--text-primary);
  text-decoration: underline;
}

.manager-tool-trace-hint:disabled {
  cursor: wait;
}

.manager-tool-trace-details {
  margin-bottom: 0;
  border-top: 1px solid var(--border-primary);
  border-left: 0;
  border-radius: 0;
}

.manager-task-chain-trace .manager-tool-trace-header {
  flex-wrap: wrap;
}

.manager-task-chain-trace [hidden] {
  display: none;
}

.manager-task-chain-status,
.manager-task-chain-error,
.manager-task-chain-step-label,
.manager-task-chain-attempt-note {
  margin: 6px 12px;
  font-size: 12px;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.manager-task-chain-status,
.manager-task-chain-attempt-note {
  color: var(--text-secondary);
}

.manager-task-chain-error {
  color: var(--color-error);
  max-height: 180px;
  overflow: auto;
}

.manager-task-chain-step-label {
  max-height: 80px;
  overflow: auto;
}

.manager-task-chain-attempt {
  margin: 6px 12px 10px;
  border-top: 1px solid var(--border-primary);
  padding-top: 6px;
}

.manager-task-chain-attempt > summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--text-primary);
  overflow-wrap: anywhere;
}

.message-tool-stats {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 0 0 6px;
  font-size: 12px;
  line-height: 20px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.message-tool-stats > span:nth-child(-n + 2) {
  white-space: nowrap;
}

.message-tool-analysis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  flex: 0 0 auto;
  height: 20px;
  padding: 0 5px;
  border: 1px solid var(--border-primary);
  border-radius: 5px;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 11px;
  line-height: 18px;
  white-space: nowrap;
  cursor: pointer;
}

.message-tool-analysis svg {
  width: 12px;
  height: 12px;
  flex: 0 0 auto;
}

.message-tool-analysis:hover {
  background: var(--bg-secondary);
  color: var(--color-primary);
}

.message-tool-analysis:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.message-token-usage {
  flex: 0 1 auto;
  order: 1;
  margin-left: auto;
  min-width: 0;
  max-width: 100%;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}
.message-token-summary {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  border-radius: 4px;
}
.message-token-total { color: var(--text-primary); white-space: nowrap; }
.message-token-recent { padding-left: 8px; border-left: 1px solid var(--border-primary); }
.message-token-progress {
  display: flex;
  flex: 0 1 80px;
  width: 80px;
  min-width: 24px;
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-primary) 12%, var(--bg-primary));
}
.message-token-progress-fill {
  display: flex;
  flex: none;
  height: 100%;
  overflow: hidden;
  border-radius: inherit;
  transition: width 180ms ease;
}
.message-token-progress-segment {
  min-width: 0;
  height: 100%;
  background: var(--color-primary);
  box-shadow: inset -1px 0 var(--bg-primary);
}
.message-token-progress-segment-1 { background: color-mix(in srgb, var(--color-primary) 65%, #22c55e); }
.message-token-progress-segment-2 { background: color-mix(in srgb, var(--color-primary) 65%, #a78bfa); }
.message-token-progress-segment-3 { background: color-mix(in srgb, var(--color-primary) 65%, #38bdf8); }
.message-token-progress[data-level="near"] { outline: 1px solid var(--color-warning); }
.message-token-progress[data-level="full"] { outline: 1px solid var(--color-error); }
.message-token-range { white-space: nowrap; }
@media (max-width: 768px) {
  .message-token-summary { gap: 5px; font-size: 11px; }
  .message-token-recent { padding-left: 5px; }
  .message-token-progress { width: 48px; flex-basis: 48px; }
}
@media (prefers-reduced-motion: reduce) {
  .message-token-progress-fill { transition: none; }
}

.tool-trace-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tool-trace-stack > .agent-trace-panel,
.tool-trace-stack > .tool-calls-container {
  margin-bottom: 0;
}

.agent-trace-panel {
  border: 1px solid var(--border-primary);
  background: var(--bg-tertiary);
  border-radius: 6px;
  overflow: hidden;
}

.agent-trace-header {
  width: 100%;
  border: 0;
  background: transparent;
  color: inherit;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  text-align: left;
  font: inherit;
}

.agent-trace-header:hover {
  background: var(--bg-secondary);
}

.agent-trace-title-wrap {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.agent-trace-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.agent-trace-summary {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.agent-trace-toggle {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--text-secondary);
}

.agent-trace-body {
  border-top: 1px solid var(--border-primary);
  padding: 12px;
  max-height: min(75vh, 900px);
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-gutter: stable;
  transition: max-height var(--transition-normal), opacity var(--transition-normal), padding var(--transition-normal);
  opacity: 1;
}

.agent-trace-panel.collapsed .agent-trace-body {
  display: none;
  max-height: 0;
  overflow: hidden;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
  border-top: 0;
}

.agent-trace-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.agent-trace-section {
  min-width: 0;
}

.chat-embedding-progress {
  min-width: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-primary);
  overflow-wrap: anywhere;
}

.chat-embedding-progress progress {
  display: block;
  width: 100%;
  height: 8px;
  margin: 6px 0;
  accent-color: var(--color-primary);
}

.chat-embedding-progress-detail {
  color: var(--text-secondary);
}

.agent-trace-section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.agent-trace-text,
.agent-trace-list {
  font-size: 12px;
  line-height: 1.45;
  color: var(--text-primary);
}

.agent-trace-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.agent-trace-chip {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  color: var(--text-primary);
  font-size: 12px;
  line-height: 1.4;
  word-break: break-word;
}

.agent-trace-list-item {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.agent-trace-link {
  color: var(--accent-primary);
  text-decoration: none;
}

.agent-trace-link:hover {
  text-decoration: underline;
}

.agent-trace-list-meta {
  color: var(--text-secondary);
}

.agent-trace-list-more,
.agent-trace-raw-title {
  color: var(--text-secondary);
  font-size: 12px;
}

.current-chat-search-fold,
.current-chat-evidence-section,
.current-chat-search-diagnostics-section {
  grid-column: 1 / -1;
}

.current-chat-search-fold {
  min-width: 0;
  font-size: 12px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.current-chat-search-fold-grid {
  margin-top: 10px;
}

.current-chat-search-diagnostics {
  font-size: 12px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.current-chat-search-diagnostics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 12px 16px;
}

.current-chat-search-diagnostics-grid > div {
  min-width: 0;
}

.current-chat-search-diagnostics-grid strong {
  display: block;
  margin-bottom: 4px;
}

.current-chat-search-fold,
.current-chat-search-diagnostics details {
  padding-top: 8px;
  border-top: 1px solid var(--border-primary);
}

.current-chat-search-diagnostics details {
  margin-top: 12px;
}

.current-chat-search-fold > summary,
.current-chat-search-diagnostics summary {
  cursor: pointer;
  color: var(--text-secondary);
}

.current-chat-search-diagnostics-note {
  margin: 8px 0;
  color: var(--text-secondary);
}

.current-chat-evidence-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  align-items: start;
  gap: 8px;
  min-width: 0;
}

.current-chat-evidence-item {
  min-width: 0;
  border: 1px solid var(--border-primary);
  border-radius: 5px;
  padding: 8px;
  background: var(--bg-primary);
}

.current-chat-evidence-header,
.current-chat-evidence-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.current-chat-evidence-header {
  justify-content: space-between;
}

.current-chat-evidence-title {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--text-primary);
  font-size: 12px;
}

.current-chat-evidence-level {
  flex-shrink: 0;
  border-radius: 999px;
  padding: 1px 6px;
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
  font-size: 11px;
}

.current-chat-evidence-level.strict {
  color: var(--color-success);
  border-color: color-mix(in srgb, var(--color-success) 45%, var(--border-primary));
}

.current-chat-evidence-level.relaxed,
.current-chat-evidence-level.semantic {
  color: var(--accent-primary);
  border-color: color-mix(in srgb, var(--accent-primary) 45%, var(--border-primary));
}

.current-chat-evidence-meta,
.current-chat-evidence-summary,
.current-chat-evidence-more {
  margin-top: 4px;
  color: var(--text-secondary);
  font-size: 11px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.current-chat-evidence-preview,
.current-chat-evidence-readout {
  margin: 6px 0 0;
  max-height: 180px;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font: inherit;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-primary);
}

.current-chat-evidence-readout {
  border-top: 1px dashed var(--border-primary);
  padding-top: 6px;
}

.current-chat-evidence-action {
  border: 1px solid var(--border-primary);
  border-radius: 4px;
  padding: 3px 7px;
  color: var(--text-primary);
  background: var(--bg-secondary);
  font: inherit;
  font-size: 11px;
  cursor: pointer;
}

.current-chat-evidence-action:hover:not(:disabled) {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.current-chat-evidence-action:disabled {
  opacity: 0.55;
  cursor: wait;
}

.agent-trace-raw {
  margin-top: 12px;
}

.agent-trace-raw-title {
  font-weight: 600;
  margin-bottom: 6px;
}

.tool-calls-container.nested {
  margin-bottom: 0;
}

/* 工具调用容器 */
.tool-calls-container {
  margin-bottom: 12px;
  border-left: 3px solid var(--color-primary);
  background: var(--bg-tertiary);
  border-radius: 6px;
  overflow: hidden;
}

/* 单个工具调用项 */
.tool-call-item {
  border-bottom: 1px solid var(--border-primary);
}

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

.tool-call-item[data-tool-status="pending"] {
  background: color-mix(in srgb, #3b82f6 10%, var(--bg-secondary));
  box-shadow: inset 3px 0 #3b82f6;
}

.tool-call-item[data-tool-status="pending"] .tool-call-icon {
  color: #3b82f6;
}

.research-download-summary {
  padding: 0 12px 10px;
  font-size: 12px;
  overflow-wrap: anywhere;
  color: var(--text-secondary);
}
.research-download-summary progress { display: block; width: 100%; height: 6px; margin: 8px 0; }
.research-download-actions { display: flex; gap: 8px; margin-top: 6px; }
.research-download-actions button { width: 30px; height: 30px; padding: 0; border: 1px solid var(--border-primary); border-radius: 4px; background: var(--bg-secondary); color: var(--text-primary); font-size: 20px; cursor: pointer; }

.literature-summary {
  margin: 0;
  padding: 0 12px 10px;
  overflow-wrap: anywhere;
}

.literature-summary-item {
  padding: 10px 0;
  border-top: 1px solid var(--border-primary);
}

.literature-summary-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.literature-summary-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 6px 14px;
}

.literature-summary-title {
  min-width: 0;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.45;
}

.literature-summary-title::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--color-success);
  vertical-align: 1px;
}

.literature-summary-item[data-tone="warning"] .literature-summary-title::before { background: var(--color-warning); }
.literature-summary-item[data-tone="error"] .literature-summary-title::before { background: var(--color-error); }

.literature-summary-headline {
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.45;
  text-align: right;
}

.literature-summary-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 18px;
  margin: 7px 0 0 14px;
}

.literature-summary-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 8px;
  min-width: 0;
  font-size: 12px;
  line-height: 1.5;
}

.literature-summary-row dt {
  color: var(--text-tertiary);
  font-weight: 500;
}

.literature-summary-row dd {
  min-width: 0;
  margin: 0;
  color: var(--text-secondary);
}

.literature-summary-warnings {
  margin: 7px 0 0 30px;
  padding: 0;
  color: color-mix(in srgb, var(--color-warning) 72%, var(--text-primary));
  font-size: 12px;
  line-height: 1.5;
}

.literature-summary-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 8px 0 0 14px;
}

@media (max-width: 640px) {
  .literature-summary-heading { grid-template-columns: minmax(0, 1fr); }
  .literature-summary-headline { text-align: left; }
  .literature-summary-details { grid-template-columns: minmax(0, 1fr); }
}

/* 工具调用头部 */
.tool-call-header {
  width: 100%;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  cursor: pointer;
  user-select: none;
  transition: background-color var(--transition-fast);
}

.tool-call-header:hover {
  background-color: var(--bg-secondary);
}

.tool-call-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.tool-call-title {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
  font-weight: 500;
  font-size: 14px;
  color: var(--text-primary);
}

.tool-call-request {
  flex-shrink: 0;
  white-space: nowrap;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  line-height: 1.5;
  padding: 2px 6px;
  border-radius: 5px;
  color: hsl(var(--request-hue, 215) 65% 28%);
  background: linear-gradient(115deg, hsl(var(--request-hue, 215) 85% 91%), hsl(calc(var(--request-hue, 215) + 28) 85% 95%));
}

[data-theme="dark"] .tool-call-request {
  color: hsl(var(--request-hue, 215) 85% 85%);
  background: linear-gradient(115deg, hsl(var(--request-hue, 215) 42% 25%), hsl(calc(var(--request-hue, 215) + 28) 38% 19%));
}

.tool-call-request.unknown { color: var(--text-secondary); background: var(--bg-secondary); }

.tool-call-status {
  flex-shrink: 0;
  max-width: 65%;
  overflow-wrap: anywhere;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
}

.tool-call-status.success {
  background-color: var(--color-success);
  color: white;
}

.tool-call-status.pending {
  background-color: #2563eb;
  color: white;
}

.tool-call-status.error {
  background-color: var(--color-error);
  color: white;
}

.tool-call-status.warning { background: var(--bg-secondary); color: var(--text-primary); border: 1px solid var(--color-warning); }
.tool-call-status.neutral { background: var(--bg-secondary); color: var(--text-primary); border: 1px solid var(--border-primary); }
.tool-trace-filters { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 10px; }
.tool-trace-filters button { border: 1px solid var(--border-primary); border-radius: 4px; padding: 5px 8px; background: var(--bg-secondary); color: var(--text-primary); font: inherit; font-size: 12px; cursor: pointer; }
.tool-trace-filters button[aria-pressed="true"] { border-color: var(--color-primary); font-weight: 600; }
.tool-trace-visible-count { font-size: 12px; color: var(--text-secondary); }
.tool-trace-pagination { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 10px; font-size: 12px; color: var(--text-secondary); }
.tool-trace-pagination button, .tool-call-page-more { border: 1px solid var(--border-primary); border-radius: 4px; padding: 5px 8px; background: var(--bg-secondary); color: var(--text-primary); font: inherit; cursor: pointer; }
.tool-trace-pagination button:disabled { opacity: .5; cursor: default; }
.tool-call-header:focus-visible, .agent-trace-header:focus-visible, .tool-trace-filters button:focus-visible { outline: 2px solid var(--color-primary); outline-offset: -2px; }
.unified-tool-trace [hidden] { display: none !important; }
.unified-tool-trace .agent-trace-grid { margin-bottom: 10px; }
.input-tool-scope-note { margin: 8px 12px; color: var(--text-secondary); font-size: 12px; overflow-wrap: anywhere; }

.tool-call-toggle {
  font-size: 12px;
  color: var(--text-secondary);
  transition: transform var(--transition-fast);
}

/* 工具调用详情 */
.tool-call-details {
  padding: 0 12px 12px 12px;
  max-height: min(70vh, 640px);
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-gutter: stable;
  transition: max-height var(--transition-normal), opacity var(--transition-normal);
  opacity: 1;
}

.tool-call-details.collapsed {
  display: none;
  max-height: 0;
  padding: 0 12px;
  overflow: hidden;
  opacity: 0;
}

/* 工具调用详情区块 */
.tool-call-section {
  margin-bottom: 12px;
}

.tool-call-section:last-child {
  margin-bottom: 0;
}

.tool-metrics-panel {
  overflow-x: auto;
  font-size: 12px;
  color: var(--text-secondary);
}

.tool-metrics-panel summary { cursor: pointer; }
.tool-metrics-panel table { width: 100%; border-collapse: collapse; }
.tool-metrics-panel th, .tool-metrics-panel td { padding: 6px; text-align: left; }

.tool-call-section-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tool-call-files {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
}

.tool-call-file-link {
  color: var(--color-primary);
  font-size: 13px;
  text-decoration: none;
}

.tool-call-file-link:hover {
  text-decoration: underline;
}

.tool-call-code {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: 4px;
  padding: 8px;
  font-family: var(--font-family-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-primary);
  overflow-x: auto;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

/* 深色主题适配 */
[data-theme="dark"] .tool-calls-container {
  background: rgba(99, 102, 241, 0.1);
  border-left-color: var(--color-primary);
}

[data-theme="dark"] .tool-call-header:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .tool-call-code {
  background: rgba(0, 0, 0, 0.3);
  border-color: rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
  .agent-trace-grid {
    grid-template-columns: 1fr;
  }

  .agent-trace-summary {
    white-space: normal;
  }
}

/* Persisted response errors remain visible beside an empty or partial body. */
.message-error {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--error-color, #dc2626);
  border-radius: 8px;
  color: var(--error-color, #dc2626);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.download-diagnostics {
  overflow-wrap: anywhere;
  max-width: 100%;
}
.download-diagnostics > div {
  margin-top: 0.35em;
}

.boot-loading {
  position: fixed;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 8px;
  text-align: center;
  color: var(--text-secondary);
}

.boot-loading[hidden] { display: none; }

.startup-state {
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: 13px;
}

.startup-state[hidden] { display: none; }
/* A failed background save remains actionable after switching conversations. */
.message-save-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 13px;
}

/* Approval stays bound to one download while its transfer is paused. */
.download-approval-dialog { width: min(440px, calc(100vw - 32px)); max-height: calc(100dvh - 32px); box-sizing: border-box; overflow: auto; padding: 24px; border: 1px solid var(--border-color, #ddd); border-radius: 14px; color: var(--text-primary, #222); background: var(--bg-primary, #fff); box-shadow: 0 12px 48px #0004; }
.download-approval-dialog::backdrop { background: #0007; }
.download-approval-dialog h3 { margin: 0 0 16px; }
.download-approval-dialog p { overflow-wrap: anywhere; line-height: 1.6; }
.download-approval-dialog .download-approval-file { font-weight: 600; }
.download-approval-dialog [role="alert"] { color: #c0392b; }
.download-approval-dialog > div { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 12px; margin-top: 20px; }
.download-approval-dialog button { min-height: 40px; padding: 8px 16px; border: 1px solid var(--border-color, #ccc); border-radius: 8px; cursor: pointer; }
.download-approval-dialog button.primary { color: white; background: #2563eb; border-color: #2563eb; }
.download-approval-dialog button:disabled { opacity: .6; cursor: wait; }

/* 对话设置整合面板与模型栏快捷入口 */
#chat-settings-btn.chat-settings-trigger {
  width: 38px; min-width: 38px; height: 38px; min-height: 38px; flex: 0 0 38px; padding: 0;
  border: 1px solid var(--border-primary); border-radius: 8px; color: var(--text-secondary);
  background: color-mix(in srgb, var(--bg-primary) 82%, var(--color-primary-light)); box-shadow: var(--shadow-sm);
}
#chat-settings-btn.chat-settings-trigger:hover,
#chat-settings-btn.chat-settings-trigger[aria-expanded="true"] {
  color: var(--color-primary); border-color: color-mix(in srgb, var(--color-primary) 36%, var(--border-primary));
  background: color-mix(in srgb, var(--color-primary-light) 70%, var(--bg-primary));
  box-shadow: 0 4px 14px color-mix(in srgb, var(--color-primary) 12%, transparent);
}
#chat-settings-btn.chat-settings-trigger:focus-visible { outline: 3px solid color-mix(in srgb, var(--color-primary) 28%, transparent); outline-offset: 2px; }

#chat-settings-panel {
  width: min(1100px, calc(100vw - 48px)); height: min(820px, calc(100dvh - 48px)); max-height: calc(100dvh - 48px);
  border-color: color-mix(in srgb, var(--border-primary) 72%, var(--color-primary)); border-radius: 16px;
  box-shadow: 0 32px 100px rgba(15, 23, 42, .25), 0 8px 24px rgba(15, 23, 42, .1); backdrop-filter: blur(18px);
}
#chat-settings-panel .settings-panel-header {
  min-height: 68px; padding: 14px 24px;
  background: color-mix(in srgb, var(--bg-primary) 84%, var(--color-primary-light));
}
#chat-settings-panel .settings-panel-header h4 { font-size: 17px; letter-spacing: 0; }
#chat-settings-panel .settings-panel-body {
  display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 0; height: calc(100% - 68px);
  max-height: none; padding: 0; overflow: hidden;
}
#chat-settings-panel .chat-settings-pagination {
  display: flex; flex-direction: column; align-items: stretch; gap: 6px; min-width: 0; margin: 0;
  padding: 20px 12px; overflow: auto; border-right: 1px solid var(--border-primary); border-bottom: 0;
  background: var(--bg-secondary); scrollbar-width: thin;
}
#chat-settings-panel .chat-settings-page-tab {
  position: relative; display: flex; align-items: center; flex: 0 0 auto; width: 100%; min-height: 42px;
  padding: 0 12px; border: 0; border-radius: 8px; color: var(--text-secondary); text-align: left;
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}
#chat-settings-panel .chat-settings-page-tab:hover {
  color: var(--text-primary); background: color-mix(in srgb, var(--bg-primary) 70%, var(--color-primary-light)); transform: translateX(2px);
}
#chat-settings-panel .chat-settings-page-tab.is-active {
  color: var(--color-primary); font-weight: 650; background: var(--bg-primary);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-primary) 18%, var(--border-primary)), var(--shadow-sm);
}
#chat-settings-panel .chat-settings-page-tab.is-active::before {
  position: absolute; left: -12px; width: 3px; height: 20px; border-radius: 0 4px 4px 0; background: var(--color-primary); content: "";
}
#chat-settings-panel .chat-settings-pages { min-width: 0; min-height: 0; overflow: auto; padding: 28px clamp(22px, 4vw, 48px) 36px; scrollbar-width: thin; }
#chat-settings-panel .chat-settings-page { width: min(100%, 820px); min-height: 100%; margin-inline: auto; }
#chat-settings-panel .chat-settings-page[hidden] { display: none; }
#chat-settings-panel .chat-settings-page-heading { margin: 0 0 26px; padding: 2px 0 19px; border-bottom: 1px solid var(--border-primary); }
.chat-settings-eyebrow { display: block; margin-bottom: 8px; color: var(--color-primary); font-size: 10px; font-weight: 750; letter-spacing: 0; }
#chat-settings-panel .chat-settings-page-heading h3 { margin: 0; color: var(--text-primary); font-size: 25px; font-weight: 680; letter-spacing: 0; }
#chat-settings-panel .chat-settings-page-heading p { margin: 7px 0 0; color: var(--text-secondary); font-size: 13px; }
#chat-settings-panel .chat-settings-subsection-heading {
  position: relative; display: flex; align-items: baseline; gap: 9px; min-height: 24px;
  margin: 24px 0 12px; padding: 0 0 9px 11px;
  border-bottom: 1px solid color-mix(in srgb, var(--border-primary) 72%, transparent);
}
#chat-settings-panel .chat-settings-subsection-heading::before {
  position: absolute; left: 0; top: 2px; width: 3px; height: 16px;
  border-radius: 0 3px 3px 0; background: color-mix(in srgb, var(--color-primary) 54%, var(--border-primary)); content: "";
}
#chat-settings-panel .chat-settings-subsection-heading:first-child,
#chat-settings-panel .chat-settings-page > .chat-settings-page-heading + .chat-settings-subsection-heading {
  margin-top: 0;
}
#chat-settings-panel .chat-settings-subsection-heading h4 {
  margin: 0; color: var(--text-primary); font-size: 14px; font-weight: 650; letter-spacing: 0;
}
#chat-settings-panel .chat-settings-subsection-kicker {
  flex: 0 0 auto; color: var(--color-primary); font-size: 9px; font-weight: 750; letter-spacing: .08em; line-height: 1;
}
#chat-settings-panel .chat-settings-subsection-heading-inset {
  margin: 0 0 16px; padding-top: 1px;
  border-bottom-color: color-mix(in srgb, var(--border-primary) 58%, transparent);
}
#chat-settings-panel .chat-settings-subsection-heading-summary-toggle { margin-top: 0; }
#chat-settings-panel .chat-settings-subsection-heading-summary-toggle .toggle-switch { margin-left: auto; }
#chat-settings-panel #chat-settings-page-summary .summary-settings-section { margin-top: 0; padding-top: 0; border-top: 0; }
#chat-settings-panel .summary-config > .form-group {
  margin: 0 0 12px; padding: 15px 16px; border: 1px solid color-mix(in srgb, var(--border-primary) 82%, transparent);
  border-radius: 8px; background: color-mix(in srgb, var(--bg-primary) 94%, var(--bg-secondary));
}
#chat-settings-panel .chat-settings-page > .form-group,
#chat-settings-panel .chat-settings-card {
  margin: 0 0 14px; padding: 17px 18px; border: 1px solid var(--border-primary); border-radius: 8px;
  background: color-mix(in srgb, var(--bg-primary) 93%, var(--bg-secondary)); box-shadow: 0 2px 8px rgba(15, 23, 42, .025);
}
#chat-settings-panel .chat-settings-action-card { display: flex; align-items: center; gap: 16px; min-height: 88px; }
#chat-settings-panel .chat-settings-action-card > div { flex: 1; min-width: 0; }
#chat-settings-panel .chat-settings-action-card h4 { margin: 0 0 4px; color: var(--text-primary); font-size: 14px; }
#chat-settings-panel .chat-settings-action-card p { margin: 0; color: var(--text-secondary); font-size: 12px; line-height: 1.55; }
.chat-settings-action-icon {
  display: grid; width: 42px; height: 42px; flex: 0 0 42px !important; place-items: center; border-radius: 8px;
  color: var(--color-primary); background: color-mix(in srgb, var(--color-primary-light) 72%, var(--bg-primary)); font-size: 22px; font-weight: 650;
}
#chat-settings-panel .chat-settings-action-card > button { flex: 0 0 auto; }
#chat-settings-panel #chat-settings-page-skills > #skill-manager-btn { margin-top: 4px; }

.chat-settings-embedded-tool-panel {
  display: none !important; position: static !important; inset: auto !important; width: 100% !important; height: auto !important;
  max-width: none !important; max-height: none !important; margin-top: 0; overflow: visible !important; transform: none !important;
  border: 0 !important; border-radius: 0 !important; background: transparent !important;
  box-shadow: none !important; transition: none !important; z-index: auto !important;
}
.chat-settings-embedded-tool-panel.open { display: flex !important; }
.chat-settings-embedded-tool-panel .network-search-panel-header,
.chat-settings-embedded-tool-panel .github-project-panel-header,
.chat-settings-embedded-tool-panel .current-chat-search-panel-header {
  display: none;
}
.chat-settings-embedded-tool-panel .network-search-panel-body,
.chat-settings-embedded-tool-panel .github-project-panel-body,
.chat-settings-embedded-tool-panel .current-chat-search-panel-body {
  width: 100%; max-height: none; padding: 0; overflow: visible;
}
.chat-settings-embedded-tool-panel .network-search-panel-footer,
.chat-settings-embedded-tool-panel .github-project-panel-footer { display: none; }
.chat-settings-embedded-tool-panel .input-tool-scope-note { margin: 12px 16px 0; }
.chat-settings-tool-status:not([hidden]) { margin: 0 0 14px; color: var(--text-secondary); }
#chat-settings-panel .chat-settings-tool-status[hidden] { display: none; }
.file-upload-panel { z-index: 1100; }
[data-theme="dark"] #chat-settings-panel { border-color: color-mix(in srgb, var(--border-primary) 76%, var(--color-primary)); box-shadow: 0 32px 100px rgba(0,0,0,.58), 0 8px 24px rgba(0,0,0,.3); }
[data-theme="dark"] #chat-settings-panel .chat-settings-page > .form-group,
[data-theme="dark"] #chat-settings-panel .chat-settings-card,
[data-theme="dark"] #chat-settings-panel .summary-config > .form-group {
  background: color-mix(in srgb, var(--bg-primary) 90%, var(--bg-secondary));
}

@media (max-width: 768px) {
  #chat-settings-btn.chat-settings-trigger { width: 44px; min-width: 44px; height: 44px; min-height: 44px; flex-basis: 44px; border-radius: 8px; }
  #chat-settings-panel { width: calc(100vw - 16px); height: min(76dvh, 700px); max-height: calc(100dvh - 16px); border-radius: 12px; }
  #chat-settings-panel .settings-panel-header { min-height: 56px; padding: 10px 15px; }
  #chat-settings-panel .settings-panel-body { grid-template-columns: 96px minmax(0, 1fr); height: calc(100% - 56px); padding: 0; }
  #chat-settings-panel .chat-settings-pagination {
    flex: 0 0 auto; flex-direction: column; gap: 5px; padding: 12px 6px; overflow-x: hidden; overflow-y: auto;
    border-right: 1px solid var(--border-primary); border-bottom: 0;
  }
  #chat-settings-panel .chat-settings-page-tab { min-height: 40px; padding: 0 8px; font-size: 12px; white-space: nowrap; }
  #chat-settings-panel .chat-settings-page-tab:hover { transform: none; }
  #chat-settings-panel .chat-settings-page-tab.is-active::before { left: -6px; bottom: auto; width: 3px; height: 18px; transform: none; }
  #chat-settings-panel .chat-settings-pages { padding: 18px 12px max(22px, env(safe-area-inset-bottom)); }
  #chat-settings-panel .chat-settings-page-heading { margin-bottom: 18px; padding-bottom: 15px; }
  #chat-settings-panel .chat-settings-page-heading h3 { font-size: 21px; }
  #chat-settings-panel .chat-settings-subsection-heading { gap: 7px; margin-top: 20px; margin-bottom: 10px; padding-bottom: 8px; }
  #chat-settings-panel .chat-settings-subsection-heading h4 { font-size: 13px; }
  #chat-settings-panel .chat-settings-subsection-kicker { font-size: 8px; }
  #chat-settings-panel .chat-settings-subsection-heading-inset { margin-bottom: 13px; }
  #chat-settings-panel .chat-settings-page > .form-group,
  #chat-settings-panel .chat-settings-card { padding: 14px; border-radius: 8px; }
  #chat-settings-panel .chat-settings-action-card { flex-wrap: wrap; gap: 12px; }
  #chat-settings-panel .chat-settings-action-card > button { margin-left: auto; }
  .chat-settings-embedded-tool-panel { margin-top: 0; border-radius: 0 !important; }
}

/* Current-turn steering and durable conversation queue. */
.conversation-inputs {
  flex: 0 0 auto;
  width: 100%; min-width: 0; max-width: 800px;
  margin: 0 auto 10px;
  border: 1px solid var(--border-primary);
  border-radius: 12px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--color-primary) 4%, var(--bg-primary)), var(--bg-secondary));
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.conversation-inputs[hidden], .running-message-mode[hidden] { display: none; }
.chat-input-container:has(> .conversation-inputs:not([hidden])) { display: flex; flex-direction: column; }
.conversation-input-heading {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 12px; gap: 8px;
  color: var(--text-secondary); font-size: 12px; font-weight: 500;
}
.conversation-input-heading > span { display: flex; align-items: center; gap: 7px; }
.conversation-input-heading > span::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 10%, transparent);
}
.conversation-input-list { max-height: min(25vh, 210px); overflow: auto; overscroll-behavior: contain; scrollbar-width: thin; }
.conversation-input-row {
  display: flex; align-items: center; gap: 12px; padding: 9px 12px;
  border-top: 1px solid color-mix(in srgb, var(--border-primary) 70%, transparent);
  transition: background 140ms ease;
}
.conversation-input-row:hover { background: color-mix(in srgb, var(--bg-primary) 65%, transparent); }
.conversation-input-body { flex: 1; min-width: 0; }
.conversation-input-text {
  font-size: 13px; line-height: 1.55; color: var(--text-primary);
  white-space: pre-wrap; overflow-wrap: anywhere;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.conversation-input-state { display: block; margin-bottom: 2px; font-size: 11px; line-height: 1.45; color: var(--text-secondary); }
.conversation-input-row[data-mode="steer"] .conversation-input-state { color: color-mix(in srgb, var(--color-primary) 72%, var(--text-primary)); }
.conversation-input-row[data-state="failed"] .conversation-input-state { color: var(--color-error); }
.conversation-input-row[data-state="dispatching"] .conversation-input-state { color: var(--color-success); }
.conversation-input-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: 3px; flex: 0 0 auto; max-width: 230px; }
.conversation-input-action {
  border: 1px solid transparent; border-radius: 6px; background: transparent;
  color: var(--text-secondary); padding: 4px 6px; font: inherit; font-size: 12px; line-height: 1.4;
  cursor: pointer; transition: color 140ms ease, background 140ms ease, border-color 140ms ease;
}
.conversation-input-action:hover { background: var(--bg-tertiary); color: var(--text-primary); border-color: var(--border-primary); }
.conversation-input-action:focus-visible { outline: 2px solid var(--border-focus); outline-offset: 2px; }
.conversation-input-action:disabled { opacity: .4; cursor: default; }
.conversation-input-send { color: color-mix(in srgb, var(--color-primary) 72%, var(--text-primary)); background: color-mix(in srgb, var(--color-primary) 8%, transparent); }
.conversation-input-send:hover { color: var(--color-primary-hover); background: color-mix(in srgb, var(--color-primary) 14%, transparent); border-color: color-mix(in srgb, var(--color-primary) 22%, transparent); }
.conversation-input-editor {
  box-sizing: border-box; width: 100%; min-height: 70px; max-height: 130px; resize: vertical;
  border: 1px solid var(--border-focus); border-radius: 7px; color: var(--text-primary);
  background: var(--bg-primary); padding: 8px 10px; font: inherit; font-size: 13px; line-height: 1.6;
}
.conversation-input-editor:focus { outline: 2px solid color-mix(in srgb, var(--color-primary) 15%, transparent); outline-offset: 1px; }
.conversation-input-error { display: flex; align-items: center; gap: 6px; padding: 6px 12px; font-size: 12px; color: var(--text-secondary); }
.running-message-mode {
  flex: 0 1 auto; min-width: 0; max-width: 130px;
  font-size: 12px; color: var(--color-primary); background: color-mix(in srgb, var(--color-primary) 6%, var(--bg-primary));
  border: 1px solid color-mix(in srgb, var(--color-primary) 18%, var(--border-primary)); border-radius: 7px; padding: 4px 5px;
}
@media (hover: hover) and (pointer: fine) {
  .conversation-input-actions .conversation-input-action:not(.conversation-input-send) { opacity: .8; }
  .conversation-input-row:hover .conversation-input-action, .conversation-input-row:focus-within .conversation-input-action { opacity: 1; }
  .conversation-input-row .conversation-input-action:disabled { opacity: .3; }
}
@media (max-width: 768px) {
  .conversation-inputs { margin-bottom: 6px; border-radius: 10px; }
  .conversation-input-row { align-items: flex-start; flex-direction: column; gap: 5px; padding: 8px 10px; }
  .conversation-input-body { width: 100%; }
  .conversation-input-actions { max-width: 100%; align-self: flex-end; }
  .conversation-input-action { min-height: 30px; padding: 5px 7px; }
  .conversation-input-list { max-height: min(22vh, 160px); }
  .running-message-mode { max-width: 112px; }
}
@media (prefers-reduced-motion: reduce) {
  .conversation-input-row, .conversation-input-action { transition: none; }
}

.project-directory-input { display:flex; gap:8px; align-items:center; }
.project-directory-input .form-input { flex:1; min-width:0; }
.project-directory-input button { flex:none; padding:9px; display:grid; place-items:center; }
.project-directory-dialog { width:min(1000px,calc(100vw - 24px)); height:min(720px,calc(100dvh - 32px)); max-width:none; max-height:none; padding:0; border:1px solid var(--border-color,#d7dce2); border-radius:12px; color:var(--text-primary,#20242a); background:var(--bg-primary,#fff); box-shadow:0 20px 80px #0005; overflow:hidden; }
.project-directory-dialog[open] { display:flex; flex-direction:column; }
#settings-page-projects [hidden], #chat-settings-page-workspace .chat-project-binding [hidden], #chat-settings-page-workspace .project-actions [hidden] { display:none !important; }
.chat-project-binding { display:grid; gap:10px; }
.chat-project-binding .project-actions { margin:0; }
.chat-project-choice { display:grid; gap:10px; padding:12px; border:1px solid var(--border-primary); border-radius:8px; background:var(--bg-secondary); }
.chat-project-binding .project-directory-input input[readonly] { color:var(--text-secondary); background:var(--bg-secondary); cursor:text; }
.chat-project-binding > .btn { justify-self:start; max-width:100%; white-space:normal; }
#chat-execution-settings [hidden] { display:none !important; }
.project-actions { display:flex; flex-wrap:wrap; align-items:center; gap:8px; margin:10px 0; }
.project-actions .form-input { flex:1 1 220px; min-width:0; max-width:100%; }
#settings-page-projects .project-toolbar { align-items:flex-end; margin:0; }
#settings-page-projects label { display:grid; gap:7px; min-width:0; margin:0; font-size:12px; font-weight:550; }
#settings-page-projects .project-toolbar label { flex:1 1 220px; }
#settings-page-projects .form-input { width:100%; box-sizing:border-box; font-size:13px; }
#settings-page-projects .btn { min-height:36px; font-size:12px; white-space:normal; }
#settings-page-projects .project-status { margin:12px 0; overflow-wrap:anywhere; }
#settings-page-projects .project-status:empty { display:none; }
#settings-page-projects .project-status.error { color:var(--color-error); }
#settings-page-projects .project-detail { display:grid; gap:12px; margin:16px 0 12px; }
#settings-page-projects .project-overview { padding:18px; border:1px solid var(--border-primary); border-radius:12px; background:var(--bg-secondary); }
#settings-page-projects .project-overview-heading { display:flex; align-items:flex-start; justify-content:space-between; gap:12px; margin-bottom:16px; }
#settings-page-projects .project-overview h4 { min-width:0; margin:0; font-size:17px; line-height:1.5; overflow-wrap:anywhere; }
#settings-page-projects .project-badge { flex-shrink:0; padding:4px 9px; border-radius:20px; background:var(--bg-primary); border:1px solid var(--border-primary); color:var(--text-secondary); font-size:11px; }
#settings-page-projects .project-badge[data-available="false"] { color:var(--color-error); }
#settings-page-projects .project-directory-label { display:block; margin-bottom:6px; color:var(--text-secondary); font-size:11px; }
#settings-page-projects .project-path-row { display:flex; align-items:flex-start; gap:12px; }
#settings-page-projects .project-path-row code { flex:1; min-width:0; line-height:1.7; font-size:12px; white-space:normal; overflow-wrap:anywhere; user-select:text; }
#settings-page-projects .project-path-row .btn { flex:none; min-height:30px; padding:5px 10px; }
#settings-page-projects .project-section { min-width:0; border:1px solid var(--border-primary); border-radius:10px; background:var(--bg-primary); }
#settings-page-projects .project-section > summary { display:flex; align-items:center; justify-content:space-between; gap:12px; padding:15px 18px; cursor:pointer; list-style:none; }
#settings-page-projects .project-section > summary::-webkit-details-marker { display:none; }
#settings-page-projects .project-section > summary::after { content:'+'; flex:none; color:var(--text-secondary); font-size:21px; line-height:1; }
#settings-page-projects .project-section[open] > summary::after { content:'−'; }
#settings-page-projects .project-section-title { display:block; font-size:14px; font-weight:650; }
#settings-page-projects .project-section small { display:block; margin-top:4px; font-size:11px; line-height:1.6; color:var(--text-secondary); }
#settings-page-projects .project-section > summary:hover { background:var(--bg-secondary); border-radius:10px; }
#settings-page-projects :is(summary,code):focus-visible { outline:2px solid var(--color-primary); outline-offset:2px; border-radius:8px; }
#settings-page-projects .project-section-body { padding:0 18px 16px; }
#settings-page-projects :is(.project-edit-form,.project-register-form,.project-create-form) { display:grid; gap:14px; }
#settings-page-projects .project-section[data-section="create"] { margin-top:16px; border-color:color-mix(in srgb,var(--color-primary) 35%,var(--border-primary)); }
#settings-page-projects .project-create-location { display:flex; align-items:flex-end; gap:8px; }
#settings-page-projects .project-create-location label { flex:1; }
#settings-page-projects .project-create-location .btn { flex:none; }
#settings-page-projects .project-create-preview { display:grid; gap:6px; padding:12px; border-radius:8px; background:var(--bg-secondary); }
#settings-page-projects .project-create-preview span { color:var(--text-secondary); font-size:11px; }
#settings-page-projects .project-create-preview code { font-size:12px; line-height:1.6; overflow-wrap:anywhere; }
#settings-page-projects :is(.project-execution-settings,.project-execution-settings .execution-form-grid) { display:grid; gap:12px; min-width:0; }
#settings-page-projects .project-execution-settings { padding-top:14px; border-top:1px solid var(--border-primary); }
#settings-page-projects .project-execution-settings .execution-advanced { padding:12px 0; border-block:1px solid var(--border-primary); }
#settings-page-projects .project-execution-settings .execution-advanced > summary { cursor:pointer; font-size:12px; }
#settings-page-projects .project-execution-settings .execution-advanced[open] > summary { margin-bottom:12px; }
#settings-page-projects .project-execution-settings .execution-advanced > label { margin-top:10px; }
#settings-page-projects label.project-execution-checkbox { display:flex; align-items:center; gap:8px; }
#settings-page-projects .project-actions { margin:0; }
#settings-page-projects .project-section .form-help { margin:0; font-size:11px; line-height:1.7; color:var(--text-secondary); }
#settings-page-projects .project-chat-list { list-style:none; margin:0; padding:0; max-height:300px; overflow:auto; overscroll-behavior:contain; }
#settings-page-projects .project-chat-list li { display:flex; align-items:center; justify-content:space-between; gap:12px; padding:10px 0; border-bottom:1px solid var(--border-primary); font-size:13px; line-height:1.6; overflow-wrap:anywhere; }
#settings-page-projects .project-chat-list li:last-child { border-bottom:0; }
#settings-page-projects .project-chat-list li span { min-width:0; }
#settings-page-projects .project-chat-list .btn { flex-shrink:0; min-height:30px; padding:5px 12px; }
#settings-page-projects .project-chat-list + .btn { margin-top:10px; }
#settings-page-projects .project-empty { margin:16px 0; padding:20px; border:1px dashed var(--border-primary); border-radius:12px; background:var(--bg-secondary); }
#settings-page-projects .project-empty p { margin:8px 0 16px; font-size:12px; color:var(--text-secondary); line-height:1.7; }
/* Project compute: container state, capacity and actions share one card. */
.project-pool-settings { display:grid; gap:16px; min-width:0; }
.project-pool-settings [hidden] { display:none !important; }
.project-pool-settings .project-pool-header { display:flex; align-items:center; justify-content:space-between; gap:14px; }
.project-pool-settings .project-pool-header > div { min-width:0; }
.project-pool-settings .project-pool-count { font-size:13px; font-weight:650; }
#settings-page-projects .project-pool-status { margin-top:4px; color:var(--text-secondary); line-height:1.65; }
#settings-page-projects .project-pool-status[data-tone="error"] { color:var(--color-error); }
.project-pool-settings .btn-primary { color:#fff; }
.project-pool-settings .btn:disabled { opacity:.45; cursor:not-allowed; }
.project-pool-settings .project-pool-header > .btn { flex:none; }
.project-pool-settings .project-pool-list { display:grid; grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr)); gap:12px; min-width:0; }
.project-pool-settings .project-pool-list:empty { display:none; }
.project-pool-settings .project-pool-card { min-width:0; padding:16px; border:1px solid var(--border-primary); border-radius:12px; background:var(--bg-primary); box-shadow:0 2px 8px #0f172a04; }
.project-pool-settings .project-pool-card-heading { display:flex; align-items:flex-start; justify-content:space-between; gap:12px; }
.project-pool-settings .project-pool-identity { display:flex; gap:11px; align-items:center; min-width:0; }
.project-pool-settings .project-pool-identity > div { min-width:0; }
.project-pool-settings .project-pool-identity h6 { margin:0; color:var(--text-primary); font-size:14px; line-height:1.5; font-weight:650; overflow-wrap:anywhere; }
.project-pool-settings .project-pool-icon { display:grid; place-items:center; flex:none; width:38px; height:38px; border-radius:10px; color:var(--color-primary); background:color-mix(in srgb,var(--color-primary) 8%,var(--bg-primary)); }
.project-pool-settings .project-pool-icon svg { width:23px; height:23px; }
.project-pool-settings .project-pool-node { display:block; margin-top:3px; color:var(--text-secondary); font-size:11px; overflow-wrap:anywhere; }
.project-pool-settings .project-pool-badge { display:inline-flex; align-items:center; gap:5px; flex:none; padding:4px 8px; border-radius:20px; background:var(--bg-tertiary); color:var(--text-secondary); font-size:10px; font-weight:600; line-height:1.5; }
.project-pool-settings .project-pool-badge::before { content:''; width:5px; height:5px; border-radius:50%; background:currentColor; }
.project-pool-settings .project-pool-badge[data-tone="success"] { color:color-mix(in srgb,var(--color-success) 65%,var(--text-primary)); background:color-mix(in srgb,var(--color-success) 10%,var(--bg-primary)); }
.project-pool-settings .project-pool-badge[data-tone="warning"] { color:color-mix(in srgb,var(--color-warning) 55%,var(--text-primary)); background:color-mix(in srgb,var(--color-warning) 12%,var(--bg-primary)); }
.project-pool-settings .project-pool-metrics { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px; margin:16px 0 0; padding:12px 0; border-block:1px solid var(--border-primary); }
.project-pool-settings .project-pool-metrics > div { min-width:0; padding-left:12px; border-left:1px solid var(--border-primary); }
.project-pool-settings .project-pool-metrics > div:first-child { padding-left:0; border-left:0; }
.project-pool-settings .project-pool-metrics dt { color:var(--text-secondary); font-size:10px; }
.project-pool-settings .project-pool-metrics dd { margin:5px 0 0; color:var(--text-primary); font-size:15px; font-weight:600; font-variant-numeric:tabular-nums; overflow-wrap:anywhere; }
.project-pool-settings .project-pool-notice { margin-top:12px; padding:10px 12px; border-radius:8px; background:color-mix(in srgb,var(--color-warning) 8%,var(--bg-primary)); border:1px solid color-mix(in srgb,var(--color-warning) 24%,var(--border-primary)); }
.project-pool-settings .project-pool-notice strong { color:color-mix(in srgb,var(--color-warning) 48%,var(--text-primary)); font-size:11px; font-weight:600; }
.project-pool-settings .project-pool-notice p { margin:4px 0 0; color:var(--text-secondary); font-size:12px; line-height:1.7; overflow-wrap:anywhere; }
.project-pool-settings .project-pool-card-actions { display:flex; flex-wrap:wrap; gap:8px; margin-top:14px; }
.project-pool-settings .project-pool-card-actions .btn { padding:6px 11px; }
.project-pool-settings .project-pool-detach { margin-left:auto; color:var(--text-secondary); background:transparent; border-color:transparent; }
.project-pool-settings .project-pool-detach:hover { color:var(--color-error); background:color-mix(in srgb,var(--color-error) 5%,var(--bg-primary)); }
.project-pool-settings .project-pool-empty { display:flex; align-items:center; gap:14px; padding:20px; border:1px dashed var(--border-secondary); border-radius:12px; background:var(--bg-secondary); }
.project-pool-settings .project-pool-empty strong { font-size:13px; }
.project-pool-settings .project-pool-empty p { margin:5px 0 0; font-size:12px; line-height:1.7; color:var(--text-secondary); }
.project-pool-settings .project-pool-add { display:flex; align-items:flex-end; gap:10px; padding:14px; border:1px solid var(--border-primary); border-radius:10px; background:var(--bg-secondary); }
.project-pool-settings .project-pool-add > label { flex:1; min-width:0; }
.project-pool-settings .project-pool-add > .btn { flex:none; min-height:38px; }
#settings-page-projects .project-pool-settings label { display:flex; flex-direction:column; gap:7px; margin:0; color:var(--text-secondary); font-size:12px; line-height:1.5; font-weight:500; }
.project-pool-settings :is(.form-input,.form-select) { display:block; width:100%; min-width:0; box-sizing:border-box; min-height:38px; font-size:13px; color:var(--text-primary); border:1px solid var(--border-primary); border-radius:7px; background:var(--bg-primary); padding:8px 10px; }
.project-pool-settings .project-pool-disclosure { border:1px solid var(--border-primary); border-radius:10px; background:var(--bg-primary); min-width:0; }
.project-pool-settings .project-pool-disclosure > summary { display:flex; align-items:center; justify-content:space-between; gap:10px; padding:13px 14px; cursor:pointer; list-style:none; }
.project-pool-settings .project-pool-disclosure > summary::-webkit-details-marker { display:none; }
.project-pool-settings .project-pool-disclosure > summary::after { content:'+'; font-size:19px; font-weight:400; color:var(--text-secondary); }
.project-pool-settings .project-pool-disclosure[open] > summary::after { content:'−'; }
.project-pool-settings .project-pool-disclosure summary strong { font-size:12px; font-weight:600; }
.project-pool-settings .project-pool-disclosure summary small { display:block; margin-top:3px; font-size:11px; color:var(--text-secondary); font-weight:400; }
.project-pool-settings .project-pool-form { padding:4px 14px 14px; }
.project-pool-settings .project-pool-form-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; }
.project-pool-settings .project-pool-full { grid-column:1/-1; }
#settings-page-projects .project-pool-settings label.project-pool-checkbox { flex-direction:row-reverse; justify-content:flex-end; align-items:center; gap:9px; }
.project-pool-settings .project-pool-form-footer { display:flex; justify-content:flex-end; margin-top:16px; padding-top:14px; border-top:1px solid var(--border-primary); }
.project-pool-settings summary:focus-visible { outline:2px solid var(--color-primary); outline-offset:2px; border-radius:8px; }
@media(max-width:600px) {
  #settings-page-projects .project-overview { padding:14px; }
  #settings-page-projects .project-section > summary { padding:14px; }
  #settings-page-projects .project-section-body { padding:0 14px 14px; }
  #settings-page-projects .project-overview-heading { flex-wrap:wrap; gap:8px; }
  #settings-page-projects .project-path-row { flex-direction:column; gap:8px; }
  .project-pool-settings .project-pool-header { align-items:flex-start; gap:8px; }
  .project-pool-settings .project-pool-header > .btn { padding-inline:9px; }
  .project-pool-settings .project-pool-card { padding:13px; }
  .project-pool-settings .project-pool-card-heading { flex-direction:column; gap:9px; }
  .project-pool-settings .project-pool-metrics { gap:5px; }
  .project-pool-settings .project-pool-metrics > div { padding-left:8px; }
  .project-pool-settings .project-pool-metrics dd { font-size:13px; }
  .project-pool-settings .project-pool-empty { align-items:flex-start; padding:15px; }
  .project-pool-settings .project-pool-empty .project-pool-icon { display:none; }
  .project-pool-settings .project-pool-add { flex-direction:column; align-items:stretch; }
  .project-pool-settings .project-pool-form-grid { grid-template-columns:minmax(0,1fr); }
  .project-pool-settings .project-pool-form-footer > .btn { width:100%; }
}
.project-directory-dialog::backdrop { background:#0008; }
.project-directory-heading,.project-directory-footer { display:flex; align-items:center; gap:12px; padding:12px 16px; flex:none; }
.project-directory-heading { justify-content:space-between; border-bottom:1px solid var(--border-color,#ddd); }
.project-directory-heading h3 { margin:0; font-size:16px; }
.project-directory-heading button { font-size:24px; line-height:1; }
.project-directory-viewport { flex:1; min-height:0; min-width:0; overflow:hidden; }
.project-directory-manager { width:100%; height:100%; color:#222; background:#fff; }
.project-directory-footer { border-top:1px solid var(--border-color,#ddd); }
.project-directory-footer span { flex:1; min-width:0; overflow-wrap:anywhere; font-size:13px; }
.project-directory-footer button { flex:none; }
.project-directory-dialog .elfinder { border:0; border-radius:0; }
.project-directory-dialog .elfinder-navbar { max-width:35%; }
@media(max-width:600px) {
  .project-directory-heading,.project-directory-footer { padding:10px; gap:8px; }
  .project-directory-footer { align-items:flex-start; }
  .project-directory-dialog .elfinder-navbar { max-width:30%; min-width:70px; }
}

/* Per-conversation goal limits. */
.goal-limit-fields { min-width: 0; margin: 0; padding: 0; border: 0; }
.goal-limits-intro { display: block; width: 100%; margin: 0 0 18px; padding: 0; color: var(--text-secondary); font-size: 12px; line-height: 1.7; }
.goal-limit-row { margin-bottom: 12px; padding: 16px 18px; border: 1px solid var(--border-primary); border-radius: 10px; background: var(--bg-primary); }
.goal-limit-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
#chat-settings-panel .goal-limit-heading > label:first-child { margin: 0; font-size: 14px; font-weight: 600; }
.goal-limit-row p { margin: 6px 0 14px; font-size: 12px; line-height: 1.6; color: var(--text-secondary); }
.goal-limit-toggle { position: relative; display: inline-flex; flex: 0 0 auto; width: 34px; height: 20px; margin: 0 !important; }
.goal-limit-toggle input { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: pointer; }
.goal-limit-toggle > span { width: 100%; border-radius: 20px; background: var(--border-primary); transition: background .15s; }
.goal-limit-toggle > span::after { content: ''; position: absolute; top: 3px; left: 3px; width: 14px; height: 14px; border-radius: 50%; background: var(--bg-primary); box-shadow: 0 1px 3px rgb(0 0 0 / 14%); transition: transform .15s; }
.goal-limit-toggle input:checked + span { background: var(--color-primary); }
.goal-limit-toggle input:checked + span::after { transform: translateX(14px); background: #fff; }
.goal-limit-toggle input:focus-visible + span { outline: 2px solid var(--border-focus); outline-offset: 3px; }
.goal-limit-toggle input:disabled { cursor: wait; }
.goal-limit-value { display: flex; align-items: center; gap: 9px; min-width: 0; font-size: 12px; color: var(--text-secondary); }
#chat-settings-panel .goal-limit-value input { width: 150px; max-width: 55%; min-width: 0; padding: 8px 10px; margin: 0; font-variant-numeric: tabular-nums; }
.goal-limit-value input:disabled { opacity: .45; }
.goal-limit-state { margin-left: auto; color: var(--color-primary); font-size: 11px; white-space: nowrap; }
.goal-limit-row[data-enabled="false"] .goal-limit-state { color: var(--text-tertiary); }
.goal-limits-note { margin: 16px 0; }
.goal-limits-save { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 14px; border-top: 1px solid var(--border-primary); }
.goal-limits-save p { margin: 0; font-size: 12px; line-height: 1.6; color: var(--text-secondary); overflow-wrap: anywhere; }
.goal-limits-save button { flex-shrink: 0; }
@media (max-width: 768px) {
  .goal-limit-row { padding: 12px; }
  .goal-limits-save { flex-wrap: wrap; }
  .goal-limits-save button { margin-left: auto; }
  #chat-settings-panel .goal-limit-value input { width: 110px; }
}

/* Conversation goals: quiet status surface, alongside the draft it controls. */
.conversation-goal {
  --goal-accent: var(--color-primary);
  flex: 0 0 auto; width: 100%; min-width: 0; max-width: 800px;
  margin: 0 auto 10px; padding: 13px 15px 0; box-sizing: border-box;
  color: var(--text-primary); background: var(--bg-secondary);
  border: 1px solid color-mix(in srgb, var(--goal-accent) 19%, var(--border-primary));
  border-radius: 13px; box-shadow: 0 2px 8px rgb(0 0 0 / 2%);
  overflow: hidden;
}
.conversation-goal[hidden] { display: none; }
.chat-input-container:has(> .conversation-goal:not([hidden])) { display: flex; flex-direction: column; }
.conversation-goal[data-status="paused"], .conversation-goal[data-status="budget_exhausted"] { --goal-accent: var(--color-warning, #b87913); }
.conversation-goal[data-status="completed"] { --goal-accent: var(--color-success); }
.conversation-goal[data-status="blocked"] { --goal-accent: var(--color-error); }
.conversation-goal[data-status="cancelled"] { --goal-accent: var(--text-tertiary); }
.goal-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.goal-identity { display: flex; align-items: center; gap: 8px; min-width: 0; }
.goal-mark { color: var(--goal-accent); font-size: 21px; line-height: 1; font-weight: 500; }
.goal-kicker { color: var(--text-secondary); font-size: 11px; font-weight: 600; letter-spacing: .05em; white-space: nowrap; }
.goal-status {
  display: inline-flex; align-items: center; gap: 5px; padding: 3px 7px;
  color: color-mix(in srgb, var(--goal-accent) 76%, var(--text-primary));
  background: color-mix(in srgb, var(--goal-accent) 9%, transparent);
  border-radius: 5px; font-size: 11px; font-weight: 500; white-space: nowrap;
}
.goal-status::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.goal-actions { display: flex; align-items: center; flex-shrink: 0; gap: 3px; }
.goal-action {
  font: inherit; font-size: 12px; line-height: 1.4; color: var(--text-secondary); background: transparent;
  border: 1px solid transparent; border-radius: 6px; padding: 5px 7px; cursor: pointer;
}
.goal-action-pause, .goal-action-resume { color: var(--text-primary); background: var(--bg-primary); border-color: var(--border-primary); }
.goal-action:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.goal-action-cancel:hover { color: var(--color-error); }
.goal-action:disabled { opacity: .45; cursor: wait; }
.goal-action:focus-visible, .goal-details summary:focus-visible { outline: 2px solid var(--border-focus); outline-offset: 2px; }
.goal-objective { margin: 8px 0 4px; font-size: 14px; line-height: 1.6; font-weight: 500; overflow-wrap: anywhere;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.goal-progress { margin: 0; color: var(--text-secondary); font-size: 12px; line-height: 1.55; overflow-wrap: anywhere;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.goal-footer { display: flex; align-items: flex-start; flex-wrap: wrap; gap: 6px 14px; margin: 10px 0; font-size: 11px; line-height: 1.6; color: var(--text-tertiary); font-variant-numeric: tabular-nums; }
.goal-iteration, .goal-usage { white-space: nowrap; }
.goal-details { flex: 1; min-width: 65px; text-align: right; }
.goal-details summary { cursor: pointer; width: fit-content; margin-left: auto; border-radius: 3px; }
.goal-details p { margin: 8px 0 0; text-align: left; line-height: 1.7; overflow-wrap: anywhere; }
.goal-details[open] { flex-basis: 100%; max-height: min(160px, 20dvh); overflow-y: auto; }
.goal-budget { height: 2px; margin: 0 -15px; background: color-mix(in srgb, var(--goal-accent) 8%, transparent); }
.goal-budget::after { content: ''; display: block; height: 100%; width: var(--goal-budget-used, 0%); background: var(--goal-accent); }
.goal-mode-btn { flex: 0 0 auto; gap: 5px; padding: 5px 8px; font-size: 12px; line-height: 1.4; border-radius: 7px; }
.goal-mode-btn[aria-pressed="true"] { color: var(--color-primary); background: color-mix(in srgb, var(--color-primary) 10%, transparent); border-color: color-mix(in srgb, var(--color-primary) 28%, transparent); }
.goal-mode-btn:disabled { opacity: .45; }
.goal-draft-active .input-area { border-color: color-mix(in srgb, var(--color-primary) 55%, var(--border-primary)); }
.goal-activity-message { justify-content: center; margin: 14px 0; }
.goal-activity-message .goal-activity-text { color: var(--text-tertiary); font-size: 11px; letter-spacing: .02em; }
@media (max-width: 768px) {
  .conversation-goal { margin-bottom: 6px; padding: 10px 11px 0; border-radius: 10px; }
  .goal-header { flex-wrap: wrap; gap: 6px; }
  .goal-identity { gap: 6px; }
  .goal-actions { margin-left: auto; gap: 1px; }
  .goal-action { min-height: 32px; padding: 5px 6px; }
  .goal-objective { margin-top: 5px; font-size: 13px; }
  .goal-progress { font-size: 11px; }
  .goal-footer { gap: 5px 10px; margin: 8px 0; }
  .goal-budget { margin: 0 -11px; }
  .goal-mode-btn { min-height: 32px; }
  .input-status { gap: 4px; flex-wrap: wrap; }
  .input-status .model-selector { width: auto; flex: 1 1 160px; margin-left: auto; }
}
@media (max-height: 500px) and (max-width: 768px) {
  .goal-progress { -webkit-line-clamp: 1; }
  .goal-objective { -webkit-line-clamp: 1; }
  .conversation-goal { padding-top: 6px; }
  .goal-details[open] { max-height: 10dvh; }
}