/* ═══════════════════════════════════════════════════════════════════
   Claude Web Chat - VSCode Plugin Style
   针对 iPhone 17 Pro 优化的移动端设计
   ═══════════════════════════════════════════════════════════════════ */

:root {
  /* 颜色系统 - VSCode 风格 */
  --bg-primary: #1e1e1e;
  --bg-secondary: #252526;
  --bg-tertiary: #2d2d30;
  --bg-hover: #2a2d2e;
  --bg-active: #37373d;

  --text-primary: #cccccc;
  --text-secondary: #858585;
  --text-muted: #6e6e6e;

  --border-color: #3e3e42;
  --divider: #2b2b2b;

  --accent-blue: #007acc;
  --accent-blue-hover: #0098ff;
  --accent-purple: #8b5cf6;

  --user-bubble: #007acc;
  --assistant-bubble: #2d2d30;

  --success: #4ec9b0;
  --warning: #ce9178;
  --error: #f48771;

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 999px;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);

  /* 动画 */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;

  /* 安全区域 (iPhone) */
  --safe-area-top: env(safe-area-inset-top);
  --safe-area-bottom: env(safe-area-inset-bottom);
  --safe-area-left: env(safe-area-inset-left);
  --safe-area-right: env(safe-area-inset-right);
}

/* ═══════════════════════════════════════════════════════════════════
   全局样式
   ═══════════════════════════════════════════════════════════════════ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  background: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-width: 100vw;
  overflow: hidden;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

textarea {
  font-family: inherit;
}

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

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

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

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

/* ═══════════════════════════════════════════════════════════════════
   顶部工具栏
   ═══════════════════════════════════════════════════════════════════ */
#header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  padding: 0 var(--spacing-md);
  padding-top: var(--safe-area-top);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
  z-index: 100;
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.header-center {
  flex: 1;
  text-align: center;
  padding: 0 var(--spacing-md);
}

#session-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  display: inline-block;
}

.icon-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}

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

/* 活动指示器 */
.activity-indicator {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  background: var(--accent-blue);
  border-radius: 50%;
  display: none;
  animation: pulse 2s ease-in-out infinite;
}

.activity-indicator.active {
  display: block;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* 模型选择器 */
.model-selector {
  position: relative;
}

.model-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.model-btn:hover {
  background: var(--bg-hover);
  border-color: var(--accent-blue);
}

#model-name {
  color: var(--accent-blue);
}

/* ═══════════════════════════════════════════════════════════════════
   消息区域
   ═══════════════════════════════════════════════════════════════════ */
#messages-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.messages {
  min-height: 100%;
  padding: var(--spacing-lg);
  padding-bottom: var(--spacing-xl);
}

/* 欢迎屏幕 */
.welcome-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  gap: var(--spacing-xl);
  padding: var(--spacing-xl);
}

.claude-logo {
  animation: fadeInDown 0.6s ease;
}

.welcome-screen h1 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  animation: fadeInUp 0.6s ease 0.2s both;
}

.quick-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  width: 100%;
  max-width: 400px;
  animation: fadeInUp 0.6s ease 0.4s both;
}

.quick-btn {
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 13px;
  transition: all var(--transition-fast);
}

.quick-btn:hover,
.quick-btn:active {
  background: var(--bg-hover);
  border-color: var(--accent-blue);
  transform: translateY(-2px);
}

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

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

/* 消息气泡 */
.message {
  display: flex;
  margin-bottom: var(--spacing-lg);
  animation: slideIn 0.3s ease;
}

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

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

.message.assistant {
  justify-content: flex-start;
}

.message-content {
  max-width: 85%;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  font-size: 14px;
  line-height: 1.6;
  word-wrap: break-word;
}

.message.user .message-content {
  background: var(--user-bubble);
  color: #ffffff;
  border-bottom-right-radius: var(--radius-sm);
}

.message.assistant .message-content {
  background: var(--assistant-bubble);
  border: 1px solid var(--border-color);
  border-bottom-left-radius: var(--radius-sm);
}

/* Markdown 样式 */
.message-content p {
  margin: 0 0 var(--spacing-sm) 0;
}

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

.message-content ul,
.message-content ol {
  margin: var(--spacing-sm) 0;
  padding-left: 20px;
}

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

.message-content a {
  color: var(--accent-blue);
  text-decoration: none;
}

.message-content a:hover {
  text-decoration: underline;
}

.message-content strong {
  color: var(--success);
  font-weight: 600;
}

.message-content code {
  background: rgba(0,0,0,0.3);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
  font-size: 13px;
}

.message-content pre {
  margin: var(--spacing-md) 0;
  background: #1e1e1e;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.message-content pre code {
  display: block;
  padding: var(--spacing-md);
  background: transparent;
  overflow-x: auto;
  line-height: 1.5;
}

.message-content blockquote {
  border-left: 3px solid var(--accent-blue);
  padding-left: var(--spacing-md);
  margin: var(--spacing-md) 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* 思考指示器 */
.thinking-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-secondary);
}

.thinking-dots {
  display: flex;
  gap: 4px;
}

.thinking-dots span {
  width: 6px;
  height: 6px;
  background: var(--accent-blue);
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out;
}

.thinking-dots span:nth-child(1) { animation-delay: -0.32s; }
.thinking-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); opacity: 0.5; }
  40% { transform: scale(1); opacity: 1; }
}

/* 工具调用卡片 */
.tool-card {
  margin: var(--spacing-md) 0;
  background: var(--bg-secondary);
  border: 1px solid var(--accent-blue);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.tool-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: rgba(0, 122, 204, 0.1);
  cursor: pointer;
  user-select: none;
}

.tool-header:active {
  background: rgba(0, 122, 204, 0.15);
}

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

.tool-icon {
  flex-shrink: 0;
  font-size: 16px;
}

.tool-name {
  font-weight: 600;
  color: var(--accent-blue);
  font-size: 13px;
}

.tool-desc {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tool-toggle {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--text-secondary);
  transition: transform var(--transition-fast);
}

.tool-card.expanded .tool-toggle {
  transform: rotate(90deg);
}

.tool-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.tool-card.expanded .tool-body {
  max-height: 400px;
  overflow-y: auto;
}

.tool-content {
  padding: var(--spacing-md);
  font-family: 'SF Mono', 'Consolas', monospace;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* ═══════════════════════════════════════════════════════════════════
   输入区域
   ═══════════════════════════════════════════════════════════════════ */
#input-container {
  position: relative;
  flex-shrink: 0;
  padding: var(--spacing-md);
  padding-bottom: calc(var(--spacing-md) + var(--safe-area-bottom));
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  z-index: 100;
}

/* 命令面板 */
.command-palette {
  position: absolute;
  bottom: calc(100% + var(--spacing-sm));
  left: var(--spacing-md);
  right: var(--spacing-md);
  max-height: 360px;
  overflow-y: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 300;
  padding: var(--spacing-xs);
  animation: slideUp 0.2s ease;
}

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

.command-palette.hidden {
  display: none;
}

.cmd-category {
  padding: var(--spacing-sm) var(--spacing-md);
  margin-top: var(--spacing-sm);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
}

.cmd-category:first-child {
  margin-top: 0;
}

.cmd-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.cmd-item:hover,
.cmd-item.selected {
  background: var(--bg-hover);
}

.cmd-item-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 0;
}

.cmd-item .cmd-name {
  font-weight: 600;
  font-size: 13px;
  color: var(--accent-blue);
  min-width: 100px;
  flex-shrink: 0;
}

.cmd-item .cmd-label {
  font-size: 13px;
  color: var(--text-primary);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cmd-item .cmd-desc {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

@media (max-width: 430px) {
  .cmd-item .cmd-desc {
    display: none;
  }
}

/* 工具状态栏 */
.tool-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--accent-blue);
  border-radius: var(--radius-md);
  animation: slideDown 0.3s ease;
}

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

.tool-status.hidden {
  display: none;
}

.tool-status-icon {
  flex-shrink: 0;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.tool-status-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tool-status-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-blue);
}

.tool-status-desc {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 附件预览 */
.attachments {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.attachments.hidden {
  display: none;
}

.attachment-chip {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-primary);
}

.attachment-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: var(--bg-hover);
  border-radius: 50%;
  color: var(--text-secondary);
  font-size: 12px;
  transition: all var(--transition-fast);
}

.attachment-remove:hover {
  background: var(--error);
  color: #fff;
}

/* 输入框 */
.input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast);
}

.input-wrapper:focus-within {
  border-color: var(--accent-blue);
}

.input-icon-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

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

#input {
  flex: 1;
  min-height: 32px;
  max-height: 120px;
  padding: 6px 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  resize: none;
  overflow-y: auto;
}

#input::placeholder {
  color: var(--text-secondary);
}

.btn-primary,
.btn-danger {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--accent-blue);
  color: #fff;
}

.btn-primary:active {
  background: var(--accent-blue-hover);
  transform: scale(0.95);
}

.btn-danger {
  background: var(--error);
  color: #fff;
}

.btn-danger:active {
  background: #dc2626;
  transform: scale(0.95);
}

.hidden {
  display: none !important;
}

/* ═══════════════════════════════════════════════════════════════════
   历史面板 (底部抽屉式)
   ═══════════════════════════════════════════════════════════════════ */
.history-panel {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  max-height: 70vh;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--shadow-lg);
  transform: translateY(100%);
  transition: transform 0.3s ease;
  z-index: 200;
  display: flex;
  flex-direction: column;
  padding-bottom: var(--safe-area-bottom);
}

.history-panel.open {
  transform: translateY(0);
}

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.history-header h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.history-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-sm);
}

.history-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
  background: var(--bg-tertiary);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.history-item:active {
  background: var(--bg-hover);
  border-color: var(--accent-blue);
}

.history-item.active {
  background: var(--bg-active);
  border-color: var(--accent-blue);
}

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

.history-item-title {
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-item-meta {
  font-size: 12px;
  color: var(--text-secondary);
}

.history-loading {
  padding: var(--spacing-xl);
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
}

/* ═══════════════════════════════════════════════════════════════════
   模型选择面板
   ═══════════════════════════════════════════════════════════════════ */
.dropdown-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: var(--spacing-md);
  min-width: 280px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-md);
  z-index: 300;
  animation: dropdownFadeIn 0.2s ease;
}

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

.dropdown-panel.hidden {
  display: none;
}

.panel-section {
  margin-bottom: var(--spacing-md);
}

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

.panel-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
}

.btn-group {
  display: flex;
  gap: var(--spacing-xs);
}

.option-btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-align: center;
}

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

.option-btn.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #fff;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  color: var(--text-primary);
  font-size: 13px;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-blue);
}

/* ═══════════════════════════════════════════════════════════════════
   遮罩层
   ═══════════════════════════════════════════════════════════════════ */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  z-index: 150;
}

.overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* ═══════════════════════════════════════════════════════════════════
   响应式设计 - iPhone 17 Pro 优化
   ═══════════════════════════════════════════════════════════════════ */

/* iPhone 17 Pro: 393x852 pt @3x */
@media (max-width: 430px) {
  .messages {
    padding: var(--spacing-md);
  }

  .message-content {
    max-width: 90%;
    font-size: 15px;
  }

  .quick-actions {
    grid-template-columns: 1fr;
  }

  #header {
    padding: 0 var(--spacing-sm);
  }

  #session-title {
    font-size: 13px;
  }
}

/* 横屏模式 */
@media (max-width: 932px) and (orientation: landscape) {
  .welcome-screen {
    min-height: 50vh;
  }

  .history-panel {
    max-height: 60vh;
  }
}

/* 平板和桌面 */
@media (min-width: 768px) {
  #app {
    max-width: 800px;
    margin: 0 auto;
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
  }

  .history-panel {
    left: auto;
    right: 0;
    width: 320px;
    max-height: 100vh;
    border-radius: 0;
    border-left: 1px solid var(--border-color);
    border-top: none;
    transform: translateX(100%);
  }

  .history-panel.open {
    transform: translateX(0);
  }
}

/* 暗色模式增强 */
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
  }
}

/* 减少动画 (可访问性) */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Toast 提示 ──────────────────────────────────────────────────── */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 10000;
  animation: toast-slide-in 0.3s ease;
  font-size: 14px;
  color: var(--text-primary);
}

.toast-success {
  border-color: var(--success);
}

.toast-error {
  border-color: var(--error);
}

.toast-info {
  border-color: var(--accent-blue);
}

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

.toast-message {
  flex: 1;
}

.toast-fade-out {
  animation: toast-slide-out 0.3s ease forwards;
}

@keyframes toast-slide-in {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes toast-slide-out {
  from {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  to {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
}