/* ultron.bundle.css - Generated at 2026-05-13T09:44:28.233Z */

/* === core/css/variables.css === */
/**
 * Ultron Core - CSS 变量定义
 * 在 Shadow DOM 内部使用，提供完全的样式隔离
 * 
 * @module core/css/variables
 * @version 2.0.0
 */

/* ===== Shadow Root 容器样式（高优先级，不会被子元素的 .ultron-root 覆盖）===== */
#ultron-shadow-root.ultron-root {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  
  /* CSS 变量定义 */
  --ultron-font-sans: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, 
    BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ultron-font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', ui-monospace, 
    SFMono-Regular, Menlo, monospace;
  
  /* 字号系统（使用 px，避免受宿主站点 root font-size 影响） */
  --ultron-text-xs: 11px;
  --ultron-text-sm: 13px;
  --ultron-text-base: 15px;
  --ultron-text-lg: 17px;
  --ultron-text-xl: 20px;
  
  /* 字重 */
  --ultron-weight-normal: 400;
  --ultron-weight-medium: 520;
  --ultron-weight-semibold: 600;
  --ultron-weight-bold: 700;

  /* 主色调 */
  --ultron-primary: #0071e3;
  --ultron-primary-light: #2997ff;
  --ultron-primary-dark: #0077ed;
  --ultron-accent: #0071e3;
  --ultron-accent-light: #2997ff;

  /* 背景色 */
  --ultron-modal-bg: #1d1d1f;
  --ultron-page-bg: #000000;
  --ultron-header-bg: rgba(29, 29, 31, 0.72);

  /* 文字颜色 */
  --ultron-text-primary: #f5f5f7;
  --ultron-text-secondary: #d1d1d6;
  --ultron-text-muted: #86868b;
  --ultron-text-placeholder: #6e6e73;

  /* 边框颜色 */
  --ultron-border: rgba(255, 255, 255, 0.08);

  /* 高亮颜色 */
  --ultron-highlight-bg: rgba(0, 113, 227, 0.2);
  --ultron-highlight-text: #2997ff;

  /* 语义色 */
  --ultron-success: #30d158;
  --ultron-success-light: #32d74b;
  --ultron-error: #ff453a;
  --ultron-link: #2997ff;
  --ultron-faq: #30d158;
  --ultron-document: #bf5af2;
  
  /* 品牌文字色 */
  --ultron-brand-text: #f5f5f7;
  
  /* 基础字体样式 */
  font-family: var(--ultron-font-sans);
  font-size: var(--ultron-text-base);
  line-height: 1.5;
  color: var(--ultron-text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== 子元素的 .ultron-root 样式（用于 overlay、modal、bubble 等）===== */
#ultron-shadow-root .ultron-root {
  /* 继承 CSS 变量，不要用 all: initial */
  font-family: var(--ultron-font-sans);
  font-size: var(--ultron-text-base);
  line-height: 1.5;
  color: var(--ultron-text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== 全局盒模型 ===== */
#ultron-shadow-root *,
#ultron-shadow-root *::before,
#ultron-shadow-root *::after {
  box-sizing: border-box;
}

/* 隐藏工具类 */
.ultron-hidden {
  display: none !important;
}


/* === core/css/modal.css === */
/**
 * Ultron Core - Modal 弹窗样式
 * 包含：蒙层、弹窗、头部、输入框、结果区、页脚
 * 
 * @module core/css/modal
 * @version 2.0.0
 */

/* ===== 搜索触发器样式 ===== */
.ultron-core-trigger {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  width: 200px;
  height: 44px;
  min-width: 200px;
  min-height: 44px;
  max-width: 240px;
  max-height: 44px;
  box-sizing: border-box;
  background: inherit;
  border: 1px solid rgba(128, 128, 128, 0.3);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.25s ease;
  font-family: var(--ultron-font-sans);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  color: inherit;
}

.ultron-core-trigger:hover {
  border-color: color-mix(in srgb, var(--ultron-primary) 50%, transparent);
  box-shadow: 0 2px 12px color-mix(in srgb, var(--ultron-primary) 15%, transparent);
}

.ultron-core-trigger-icon {
  width: 16px;
  height: 16px;
  opacity: 0.6;
}

.ultron-core-trigger-icon svg {
  width: 100%;
  height: 100%;
}

.ultron-core-trigger-text {
  font-size: var(--ultron-text-base);
  font-weight: var(--ultron-weight-normal);
  letter-spacing: -0.01em;
  opacity: 0.6;
  flex: 1;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ultron-core-trigger-shortcut {
  display: inline-flex;
  align-items: center;
  background: rgba(128, 128, 128, 0.12);
  border: 1px solid rgba(128, 128, 128, 0.2);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: var(--ultron-text-xs);
  font-family: var(--ultron-font-mono);
  font-weight: var(--ultron-weight-semibold);
  letter-spacing: 0.04em;
  color: inherit;
  opacity: 0.65;
  transition: all 0.2s ease;
}

.ultron-core-trigger:hover .ultron-core-trigger-shortcut {
  opacity: 0.85;
  border-color: color-mix(in srgb, var(--ultron-primary) 35%, transparent);
  background: color-mix(in srgb, var(--ultron-primary) 10%, transparent);
}

/* ===== 蒙层样式 ===== */
.ultron-core-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: 2147483640;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

.ultron-core-overlay.ultron-active {
  opacity: 1;
  visibility: visible;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* ===== 搜索模态框 ===== */
.ultron-core-modal {
  position: fixed;
  top: 10%;
  left: 50%;
  transform: translateX(-50%) scale(0.96);
  width: 92%;
  max-width: 640px;
  max-height: 70vh;
  background: var(--ultron-modal-bg);
  border-radius: 16px;
  border: 1px solid var(--ultron-border);
  box-shadow: 
    0 0 0 1px rgba(0, 0, 0, 0.3),
    0 25px 50px -12px rgba(0, 0, 0, 0.5),
    0 0 80px color-mix(in srgb, var(--ultron-primary) 8%, transparent);
  z-index: 2147483647;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  font-family: var(--ultron-font-sans);
  font-size: var(--ultron-text-base);
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}

.ultron-core-modal.ultron-active {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) scale(1);
}

/* ===== 搜索头部 ===== */
.ultron-core-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid color-mix(in srgb, var(--ultron-border) 80%, transparent);
  background: var(--ultron-header-bg);
}

.ultron-core-search-icon {
  width: 20px;
  height: 20px;
  color: var(--ultron-primary-light);
  flex-shrink: 0;
}

.ultron-core-search-icon svg {
  width: 100%;
  height: 100%;
}

.ultron-core-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: var(--ultron-text-lg);
  font-weight: var(--ultron-weight-normal);
  letter-spacing: -0.02em;
  color: var(--ultron-text-primary);
  font-family: inherit;
  caret-color: var(--ultron-primary-light);
}

.ultron-core-input::placeholder {
  color: var(--ultron-text-placeholder);
}

/* ===== 统一关闭按钮样式 ===== */
.ultron-core-close-btn {
  display: flex;
  align-items: center;
  gap: 0;
  background: color-mix(in srgb, var(--ultron-text-primary) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--ultron-text-primary) 12%, transparent);
  border-radius: 8px;
  padding: 0;
  color: var(--ultron-text-muted);
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--ultron-font-mono);
  overflow: hidden;
}

.ultron-core-close-btn:hover {
  background: color-mix(in srgb, var(--ultron-error) 10%, transparent);
  border-color: color-mix(in srgb, var(--ultron-error) 25%, transparent);
}

.ultron-core-close-btn:hover .ultron-core-close-esc {
  max-width: 40px;
  padding: 6px 8px;
  opacity: 1;
  color: color-mix(in srgb, var(--ultron-error) 70%, white);
}

.ultron-core-close-btn:hover .ultron-core-close-divider {
  max-width: 1px;
  opacity: 1;
  background: color-mix(in srgb, var(--ultron-error) 30%, transparent);
}

.ultron-core-close-btn:hover .ultron-core-close-icon {
  color: color-mix(in srgb, var(--ultron-error) 70%, white);
}

.ultron-core-close-esc {
  font-size: 10px;
  font-weight: 500;
  max-width: 0;
  padding: 6px 0;
  opacity: 0;
  color: var(--ultron-text-placeholder);
  transition: all 0.2s ease;
  letter-spacing: 0.5px;
  white-space: nowrap;
  overflow: hidden;
}

.ultron-core-close-divider {
  max-width: 0;
  opacity: 0;
  height: 100%;
  min-height: 24px;
  background: var(--ultron-border);
  transition: all 0.2s ease;
  overflow: hidden;
}

.ultron-core-close-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 8px;
  color: var(--ultron-text-placeholder);
  transition: color 0.2s;
}

.ultron-core-close-icon svg {
  width: 14px;
  height: 14px;
}

/* ===== 搜索结果区域 ===== */
.ultron-core-results {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  min-height: 280px;
  max-height: 500px;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--ultron-primary) 30%, transparent) transparent;
}

.ultron-core-results::-webkit-scrollbar {
  width: 6px;
}

.ultron-core-results::-webkit-scrollbar-track {
  background: transparent;
}

.ultron-core-results::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--ultron-primary) 30%, transparent);
  border-radius: 3px;
}

/* ===== 空状态和加载状态 ===== */
.ultron-core-empty,
.ultron-core-loading,
.ultron-core-initial {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
  color: var(--ultron-text-placeholder);
  text-align: center;
}

.ultron-core-empty-icon,
.ultron-core-loading-icon,
.ultron-core-initial-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 16px;
  color: var(--ultron-text-placeholder);
}

.ultron-core-empty-icon svg,
.ultron-core-loading-icon svg,
.ultron-core-initial-icon svg {
  width: 100%;
  height: 100%;
}

.ultron-core-loading-icon {
  animation: ultron-spin 1s linear infinite;
}

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

.ultron-core-empty-title,
.ultron-core-initial-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--ultron-text-muted);
  margin-bottom: 6px;
}

.ultron-core-empty-hint,
.ultron-core-initial-hint {
  font-size: 13px;
  color: var(--ultron-text-placeholder);
}

/* ===== 页脚 ===== */
.ultron-core-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid color-mix(in srgb, var(--ultron-border) 80%, transparent);
  background: var(--ultron-header-bg);
  font-size: 11px;
  color: var(--ultron-text-placeholder);
}

.ultron-core-footer-shortcuts {
  display: flex;
  gap: 12px;
}

.ultron-core-footer-shortcut {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ultron-core-footer-shortcut span:not(.ultron-core-footer-kbd) {
  color: var(--ultron-text-muted);
  font-size: 12px;
}

.ultron-core-footer-kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 7px;
  border-radius: 5px;
  background: color-mix(in srgb, var(--ultron-text-primary) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--ultron-text-primary) 18%, transparent);
  box-shadow: inset 0 -1px 0 color-mix(in srgb, var(--ultron-text-primary) 18%, transparent);
  font-family: var(--ultron-font-mono);
  font-size: 10px;
  font-weight: var(--ultron-weight-bold);
  letter-spacing: 0.04em;
  color: var(--ultron-text-secondary);
}

.ultron-core-footer-kbd svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

.ultron-core-footer-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ultron-text-placeholder);
  text-decoration: none;
  transition: opacity 0.2s;
}

.ultron-core-footer-brand:hover {
  opacity: 0.8;
}

/* 品牌文字动画 */
@keyframes ultron-brand-shimmer {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.ultron-core-footer-brand-logo {
  display: inline-flex;
  align-items: center;
  position: relative;
}

.ultron-core-footer-brand-logo .ultron-brand-text-inner {
  font-family: 'Source Han Sans SC', 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 1px;
  background: linear-gradient(90deg, #93c5fd, #60a5fa, #3b82f6, #2563eb, #3b82f6, #60a5fa, #93c5fd);
  background-size: 300% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: none;
  position: relative;
  padding: 0 4px;
  filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.5));
  will-change: background-position;
  contain: layout style;
}

.ultron-core-modal.ultron-active .ultron-brand-text-inner {
  animation: ultron-brand-shimmer 4s ease-in-out infinite;
}

/* ===== 错误状态 ===== */
.ultron-core-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 20px;
  color: var(--ultron-error);
  text-align: center;
}

.ultron-core-error-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
}

.ultron-core-error-icon svg {
  width: 100%;
  height: 100%;
}

.ultron-core-error-text {
  font-size: 14px;
}

/* ===== 响应式 ===== */
@media (max-width: 640px) {
  .ultron-core-modal {
    top: 8%;
    width: 95%;
    max-height: 80vh;
    border-radius: 14px;
  }

  .ultron-core-trigger-shortcut {
    display: none;
  }

  .ultron-core-footer-shortcuts {
    display: none;
  }

  .ultron-core-header {
    padding: 14px 16px;
  }

  .ultron-core-footer {
    justify-content: flex-end;
  }
}


/* === doc-search/css/search.css === */
/**
 * Ultron DocSearch - 搜索结果样式
 * 包含：建议项、结果项、分组、高亮等
 * 
 * @module doc-search/css/search
 * @version 2.0.0
 */

/* ===== 推荐项样式 ===== */
.ultron-search-suggestions {
  padding: 8px 0;
}

.ultron-search-suggestions-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--ultron-text-placeholder);
  padding: 8px 12px;
  margin-bottom: 4px;
}

.ultron-search-suggestion-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  margin: 2px 4px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.ultron-search-suggestion-item:hover {
  transform: scale(1.02);
  transform-origin: center;
}

.ultron-search-suggestion-item.ultron-selected {
  background: color-mix(in srgb, var(--ultron-primary) 12%, transparent);
  border-color: color-mix(in srgb, var(--ultron-primary) 30%, transparent);
}

.ultron-search-suggestion-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--ultron-primary) 15%, transparent);
  flex-shrink: 0;
  overflow: hidden;
}

.ultron-search-suggestion-icon img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

.ultron-search-suggestion-icon svg {
  width: 18px;
  height: 18px;
  color: var(--ultron-primary-light);
}

.ultron-search-suggestion-content {
  flex: 1;
  min-width: 0;
}

.ultron-search-suggestion-title {
  font-size: var(--ultron-text-base);
  font-weight: var(--ultron-weight-medium);
  letter-spacing: -0.02em;
  color: var(--ultron-text-secondary);
  margin-bottom: 3px;
}

.ultron-search-suggestion-desc {
  font-size: var(--ultron-text-sm);
  font-weight: var(--ultron-weight-normal);
  letter-spacing: -0.005em;
  color: var(--ultron-text-placeholder);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ultron-search-suggestion-arrow {
  color: var(--ultron-text-placeholder);
  opacity: 0;
  transition: opacity 0.15s;
}

.ultron-search-suggestion-item:hover .ultron-search-suggestion-arrow {
  opacity: 0.5;
}

.ultron-search-suggestion-item.ultron-selected .ultron-search-suggestion-arrow {
  opacity: 1;
  color: var(--ultron-primary-light);
}

/* ===== 搜索引导区域 ===== */
.ultron-search-guide {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 20px 8px;
  margin-top: 16px;
  border-top: 1px dashed color-mix(in srgb, var(--ultron-primary) 15%, transparent);
  color: var(--ultron-text-placeholder);
  text-align: center;
}

.ultron-search-guide-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 12px;
  color: var(--ultron-text-placeholder);
  opacity: 0.6;
}

.ultron-search-guide-icon svg {
  width: 100%;
  height: 100%;
}

.ultron-search-guide-text {
  font-size: 13px;
  color: var(--ultron-text-placeholder);
  line-height: 1.5;
}

/* ===== 结果分组 ===== */
.ultron-search-group {
  margin-bottom: 12px;
}

.ultron-search-group-title {
  font-size: var(--ultron-text-xs);
  font-weight: var(--ultron-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ultron-text-placeholder);
  padding: 10px 12px 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ultron-search-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--ultron-primary) 20%, transparent), transparent);
}

/* ===== 单个结果项 ===== */
.ultron-search-result-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  margin: 2px 4px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.ultron-search-result-item.ultron-fade-in {
  animation: ultron-fade-in 0.3s ease-out forwards;
}

@keyframes ultron-fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ultron-search-result-item:hover {
  transform: scale(1.02);
  transform-origin: center;
}

.ultron-search-result-item.ultron-selected {
  background: color-mix(in srgb, var(--ultron-primary) 12%, transparent);
  border-color: color-mix(in srgb, var(--ultron-primary) 30%, transparent);
}

.ultron-search-result-icon {
  width: 22px;
  height: 22px;
  color: var(--ultron-primary-light);
  flex-shrink: 0;
  margin-top: 1px;
}

.ultron-search-result-icon svg {
  width: 100%;
  height: 100%;
}

/* 不同 docType 的图标颜色 */
.ultron-search-result-item[data-doctype="Url"] .ultron-search-result-icon,
.ultron-search-result-item[data-doctype="url"] .ultron-search-result-icon {
  color: var(--ultron-link);
}

.ultron-search-result-item[data-doctype="Faq"] .ultron-search-result-icon,
.ultron-search-result-item[data-doctype="faq"] .ultron-search-result-icon {
  color: var(--ultron-faq);
}

.ultron-search-result-item[data-doctype="Document"] .ultron-search-result-icon,
.ultron-search-result-item[data-doctype="document"] .ultron-search-result-icon {
  color: var(--ultron-document);
}

.ultron-search-result-content {
  flex: 1;
  min-width: 0;
}

.ultron-search-result-title {
  font-size: var(--ultron-text-base);
  font-weight: var(--ultron-weight-medium);
  letter-spacing: -0.02em;
  color: var(--ultron-text-secondary);
  margin-bottom: 4px;
  line-height: 1.4;
}

.ultron-search-result-title mark {
  background: var(--ultron-highlight-bg);
  color: var(--ultron-highlight-text);
  border-radius: 2px;
  padding: 0 2px;
}

.ultron-search-result-snippet {
  font-size: var(--ultron-text-sm);
  font-weight: var(--ultron-weight-normal);
  letter-spacing: -0.005em;
  color: var(--ultron-text-muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ultron-search-result-snippet mark {
  background: color-mix(in srgb, var(--ultron-highlight-bg) 80%, transparent);
  color: var(--ultron-highlight-text);
  border-radius: 2px;
  padding: 0 2px;
}

.ultron-search-result-arrow {
  color: var(--ultron-text-placeholder);
  opacity: 0;
  transition: opacity 0.15s;
  flex-shrink: 0;
  margin-top: 2px;
}

.ultron-search-result-arrow svg {
  width: 16px;
  height: 16px;
}

.ultron-search-result-item:hover .ultron-search-result-arrow {
  opacity: 0.5;
}

.ultron-search-result-item.ultron-selected .ultron-search-result-arrow {
  opacity: 1;
  color: var(--ultron-primary-light);
}

/* ===== 无结果状态 ===== */
.ultron-search-empty-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin-bottom: 16px;
  object-fit: cover;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.ultron-search-empty-state {
  padding-top: 48px;
  padding-bottom: 48px;
}

/* ===== 滚动加载提示 ===== */
.ultron-search-scroll-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px;
  color: var(--ultron-text-muted);
  font-size: 12px;
  opacity: 0.5;
}

.ultron-search-scroll-hint svg {
  animation: ultron-bounce 1.5s ease-in-out infinite;
}

@keyframes ultron-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(3px); }
}

.ultron-search-scroll-hint.ultron-scroll-loading {
  gap: 4px;
  opacity: 0.7;
}

.ultron-search-scroll-loading-dot {
  width: 6px;
  height: 6px;
  background: var(--ultron-primary-light);
  border-radius: 50%;
  animation: ultron-dot-bounce 0.6s ease-in-out infinite;
}

.ultron-search-scroll-loading-dot:nth-child(1) { animation-delay: 0s; }
.ultron-search-scroll-loading-dot:nth-child(2) { animation-delay: 0.1s; }
.ultron-search-scroll-loading-dot:nth-child(3) { animation-delay: 0.2s; }

@keyframes ultron-dot-bounce {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  50% {
    transform: translateY(-4px);
    opacity: 1;
  }
}

/* ===== 聊天入口按钮 ===== */
.ultron-search-chat-entry {
  display: flex;
  justify-content: center;
  padding: 16px 12px 8px;
}

/* 跟在搜索结果后面时的样式 */
.ultron-search-group + .ultron-search-chat-entry {
  padding-top: 12px;
  margin-top: 4px;
}

.ultron-search-chat-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: color-mix(in srgb, var(--ultron-primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--ultron-primary) 20%, transparent);
  border-radius: 20px;
  color: var(--ultron-primary-light);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.ultron-search-chat-btn:hover {
  background: color-mix(in srgb, var(--ultron-primary) 20%, transparent);
  border-color: color-mix(in srgb, var(--ultron-primary) 35%, transparent);
  transform: translateY(-1px);
}

.ultron-search-chat-btn:active {
  transform: translateY(0);
}

.ultron-search-chat-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.ultron-search-chat-icon {
  width: 16px;
  height: 16px;
}

.ultron-search-chat-icon svg {
  width: 100%;
  height: 100%;
}

/* ===== 搜索到聊天过渡动画 ===== */
.ultron-transition-fadeout {
  animation: ultron-transition-fade-out 200ms ease-out forwards;
}

@keyframes ultron-transition-fade-out {
  from { 
    opacity: 1; 
    transform: translateY(0); 
  }
  to { 
    opacity: 0; 
    transform: translateY(-16px); 
  }
}

.ultron-transition-view {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
  animation: ultron-transition-fade-in 300ms ease-out forwards;
}

@keyframes ultron-transition-fade-in {
  from { 
    opacity: 0; 
    transform: translateY(12px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

.ultron-transition-icon {
  position: relative;
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, 
    color-mix(in srgb, var(--ultron-primary) 15%, transparent) 0%, 
    color-mix(in srgb, var(--ultron-accent) 15%, transparent) 100%);
  border-radius: 50%;
  color: var(--ultron-accent);
}

.ultron-transition-icon::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ultron-primary), var(--ultron-accent));
  opacity: 0.3;
  animation: ultron-transition-pulse 1.2s ease-in-out infinite;
}

.ultron-transition-icon svg {
  width: 32px;
  height: 32px;
  position: relative;
  z-index: 1;
}

@keyframes ultron-transition-pulse {
  0%, 100% { 
    transform: scale(1); 
    opacity: 0.3; 
  }
  50% { 
    transform: scale(1.15); 
    opacity: 0.1; 
  }
}

.ultron-transition-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--ultron-text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.ultron-transition-query {
  display: inline;
  color: var(--ultron-accent);
  font-weight: 600;
}

.ultron-transition-hint {
  font-size: 13px;
  color: var(--ultron-text-muted);
  margin-bottom: 20px;
}

.ultron-transition-dots {
  display: flex;
  gap: 6px;
}

.ultron-transition-dots span {
  width: 8px;
  height: 8px;
  background: var(--ultron-accent);
  border-radius: 50%;
  animation: ultron-transition-dot 1s ease-in-out infinite;
}

.ultron-transition-dots span:nth-child(1) {
  animation-delay: 0s;
}

.ultron-transition-dots span:nth-child(2) {
  animation-delay: 0.15s;
}

.ultron-transition-dots span:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes ultron-transition-dot {
  0%, 60%, 100% { 
    transform: translateY(0); 
    opacity: 0.4; 
  }
  30% { 
    transform: translateY(-8px); 
    opacity: 1; 
  }
}


/* === chat/css/chat.css === */
/**
 * Ultron Chat - 聊天界面样式
 * 包含：聊天容器、消息、气泡、输入框等
 * 
 * @module chat/css/chat
 * @version 2.0.0
 */

/* ===== Chat 模式下的 Modal 调整 ===== */
.ultron-core-modal.ultron-chat-mode .ultron-core-header {
  display: none;
}

.ultron-core-modal.ultron-chat-mode .ultron-core-footer {
  display: none;
}

.ultron-core-modal.ultron-chat-mode .ultron-core-results {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ===== Chat 容器 ===== */
.ultron-chat-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 500px;
  max-height: 500px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--ultron-page-bg) 98%, transparent) 0%, color-mix(in srgb, var(--ultron-modal-bg) 98%, transparent) 100%);
  overflow: hidden;
}

/* ===== Chat 头部区域 ===== */
.ultron-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  min-height: 72px;
  box-sizing: border-box;
  border-bottom: 1px solid color-mix(in srgb, var(--ultron-border) 60%, transparent);
  background: linear-gradient(135deg, color-mix(in srgb, var(--ultron-accent) 8%, transparent) 0%, color-mix(in srgb, var(--ultron-primary) 8%, transparent) 100%);
  position: relative;
  overflow: hidden;
}

.ultron-chat-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--ultron-accent) 40%, transparent), color-mix(in srgb, var(--ultron-primary) 40%, transparent), transparent);
}

.ultron-chat-header-title-section {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
  min-width: 0;
}

.ultron-chat-header-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--ultron-accent) 15%, transparent) 0%, color-mix(in srgb, var(--ultron-primary) 15%, transparent) 100%);
  border: 1px solid color-mix(in srgb, var(--ultron-accent) 25%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px color-mix(in srgb, var(--ultron-accent) 10%, transparent);
}

.ultron-chat-header-icon svg {
  width: 22px;
  height: 22px;
  color: var(--ultron-accent-light);
}

.ultron-chat-header-icon img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  display: block;
}

.ultron-chat-header-title-wrap {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ultron-chat-header-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  line-height: 1.2;
  color: var(--ultron-accent-light);
  opacity: 0.9;
}

.ultron-chat-header-title {
  font-size: var(--ultron-text-base);
  font-weight: var(--ultron-weight-semibold);
  letter-spacing: -0.02em;
  color: var(--ultron-text-primary);
  margin: 0;
  line-height: 1.35;
}

/* ===== Chat 消息区域 ===== */
.ultron-chat-messages {
  flex: 1;
  padding: 24px 20px;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: 
    radial-gradient(ellipse at 0% 0%, color-mix(in srgb, var(--ultron-accent) 3%, transparent) 0%, transparent 50%),
    radial-gradient(ellipse at 100% 100%, color-mix(in srgb, var(--ultron-primary) 3%, transparent) 0%, transparent 50%);
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--ultron-accent) 30%, transparent) transparent;
  min-height: 0;
}

.ultron-chat-messages::-webkit-scrollbar {
  width: 6px;
}

.ultron-chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.ultron-chat-messages::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--ultron-accent) 30%, transparent);
  border-radius: 3px;
}

/* ===== Chat 空状态 ===== */
.ultron-chat-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 200px;
  padding: 40px 20px;
  color: var(--ultron-text-placeholder);
  text-align: center;
}

.ultron-chat-empty-icon {
  width: 96px;
  height: 96px;
  margin-bottom: 16px;
  color: var(--ultron-text-placeholder);
  opacity: 0.8;
}

.ultron-chat-empty-icon svg,
.ultron-chat-empty-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.ultron-chat-empty-text {
  font-size: 14px;
  color: var(--ultron-text-placeholder);
}

/* ===== Chat 单条消息 ===== */
.ultron-chat-message {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.ultron-chat-message.ultron-chat-message-show {
  opacity: 1;
  transform: translateY(0);
}

.ultron-chat-user {
  flex-direction: row-reverse;
  justify-content: flex-start;
}

.ultron-chat-assistant {
  flex-direction: row;
}

/* ===== Chat 头像样式 ===== */
.ultron-chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 16px color-mix(in srgb, var(--ultron-modal-bg) 40%, black);
  position: relative;
}

.ultron-chat-avatar::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 13px;
  padding: 1px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--ultron-text-primary) 20%, transparent), transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.ultron-chat-avatar svg {
  width: 20px;
  height: 20px;
}

.ultron-chat-avatar-user {
  background: linear-gradient(135deg, var(--ultron-primary) 0%, var(--ultron-accent) 50%, var(--ultron-accent-light) 100%);
  color: white;
}

.ultron-chat-avatar-assistant {
  background: linear-gradient(135deg, var(--ultron-success) 0%, color-mix(in srgb, var(--ultron-success) 80%, black) 50%, color-mix(in srgb, var(--ultron-success) 60%, black) 100%);
  color: white;
}

/* ===== Chat 气泡样式 ===== */
.ultron-chat-bubble {
  max-width: 80%;
  padding: 14px 18px;
  border-radius: 18px;
  line-height: 1.6;
  position: relative;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.ultron-chat-bubble-user {
  background: linear-gradient(135deg, color-mix(in srgb, var(--ultron-primary) 18%, transparent) 0%, color-mix(in srgb, var(--ultron-accent) 18%, transparent) 100%);
  border: 1px solid color-mix(in srgb, var(--ultron-accent) 35%, transparent);
  border-radius: 18px 4px 18px 18px;
  box-shadow: 
    0 4px 16px color-mix(in srgb, var(--ultron-primary) 12%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--ultron-text-primary) 5%, transparent);
}

.ultron-chat-bubble-assistant {
  background: linear-gradient(135deg, color-mix(in srgb, var(--ultron-success) 12%, transparent) 0%, color-mix(in srgb, var(--ultron-success) 80%, black 12%, transparent) 100%);
  border: 1px solid color-mix(in srgb, var(--ultron-success) 25%, transparent);
  border-radius: 4px 18px 18px 18px;
  box-shadow: 
    0 4px 16px color-mix(in srgb, var(--ultron-success) 8%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--ultron-text-primary) 5%, transparent);
}

.ultron-chat-ai-disclaimer {
  font-size: 11px;
  color: var(--ultron-text-muted);
  opacity: 0.6;
  margin-top: 8px;
  padding-top: 6px;
  border-top: 1px solid color-mix(in srgb, var(--ultron-text-muted) 15%, transparent);
}

.ultron-chat-text {
  font-size: var(--ultron-text-base);
  font-weight: var(--ultron-weight-normal);
  letter-spacing: -0.01em;
  color: var(--ultron-text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.6;
}

.ultron-chat-text code {
  background: color-mix(in srgb, var(--ultron-modal-bg) 60%, black);
  padding: 3px 7px;
  border-radius: 5px;
  font-family: var(--ultron-font-mono);
  font-size: 0.875em;
  font-weight: var(--ultron-weight-medium);
}

.ultron-chat-text pre {
  background: color-mix(in srgb, var(--ultron-modal-bg) 50%, black);
  padding: 12px 16px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 10px 0;
}

.ultron-chat-text pre code {
  background: none;
  padding: 0;
}

/* ===== Chat 引用链接样式 ===== */
.ultron-chat-text sup {
  line-height: 1;
  vertical-align: super;
  font-size: 0.75em;
}

.ultron-chat-ref-link {
  color: var(--ultron-accent-light);
  text-decoration: none;
  font-weight: 600;
  padding: 0 2px;
  transition: all 0.2s ease;
}

.ultron-chat-ref-link:hover {
  color: var(--ultron-primary);
  text-decoration: underline;
}

/* 无链接的引用标记 */
.ultron-chat-ref-no-link {
  color: var(--ultron-text-muted);
  font-weight: 500;
  padding: 0 1px;
}

/* ===== Chat 输入中动画 ===== */
.ultron-chat-typing {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 0;
}

.ultron-chat-typing-dot {
  width: 8px;
  height: 8px;
  background: var(--ultron-success);
  border-radius: 50%;
  animation: ultron-chat-typing-bounce 1.4s ease-in-out infinite;
}

.ultron-chat-typing-dot:nth-child(1) { animation-delay: 0s; }
.ultron-chat-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.ultron-chat-typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes ultron-chat-typing-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

/* ===== Chat 底部输入区域 ===== */
.ultron-chat-footer {
  padding: 16px 20px;
  border-top: 1px solid color-mix(in srgb, var(--ultron-border) 60%, transparent);
  background: var(--ultron-header-bg);
  flex-shrink: 0;
}

.ultron-chat-input-container {
  display: flex;
  align-items: center;
  gap: 12px;
  background: color-mix(in srgb, var(--ultron-primary) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--ultron-primary) 20%, transparent);
  border-radius: 12px;
  padding: 4px 4px 4px 16px;
  transition: all 0.2s ease;
}

.ultron-chat-input-container:focus-within {
  border-color: color-mix(in srgb, var(--ultron-primary) 40%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ultron-primary) 12%, transparent);
}

.ultron-chat-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: 14px;
  color: var(--ultron-text-primary);
  font-family: inherit;
  caret-color: var(--ultron-accent-light);
  padding: 8px 0;
}

.ultron-chat-input::placeholder {
  color: var(--ultron-text-placeholder);
}

.ultron-chat-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ultron-chat-send-btn,
.ultron-chat-stop-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.ultron-chat-send-btn {
  background: linear-gradient(135deg, var(--ultron-primary) 0%, var(--ultron-accent) 100%);
  color: white;
}

.ultron-chat-send-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--ultron-primary) 40%, transparent);
}

.ultron-chat-stop-btn {
  background: linear-gradient(135deg, var(--ultron-error) 0%, color-mix(in srgb, var(--ultron-error) 85%, black) 100%);
  color: white;
}

.ultron-chat-stop-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--ultron-error) 40%, transparent);
}

.ultron-chat-send-btn svg,
.ultron-chat-stop-btn svg {
  width: 18px;
  height: 18px;
}

/* ===== 响应式 ===== */
@media (max-width: 640px) {
  .ultron-chat-container {
    min-height: 0;
  }

  .ultron-chat-header {
    padding: 14px 16px;
    min-height: 64px;
  }

  .ultron-chat-header-icon {
    width: 36px;
    height: 36px;
  }

  .ultron-chat-messages {
    padding: 16px;
    gap: 16px;
  }

  .ultron-chat-avatar {
    width: 34px;
    height: 34px;
  }

  .ultron-chat-bubble {
    max-width: 85%;
    padding: 12px 14px;
  }

  .ultron-chat-text {
    font-size: 13px;
  }

  .ultron-chat-footer {
    padding: 12px 16px;
  }

  .ultron-chat-send-btn,
  .ultron-chat-stop-btn {
    width: 36px;
    height: 36px;
  }
}


/* === floating-ui/css/floating.css === */
/**
 * Ultron FloatingUI - 悬浮气泡样式
 * 包含：气泡、动画、收起状态等
 * 
 * @module floating-ui/css/floating
 * @version 2.0.0
 */

/* ===== 悬浮气泡容器 ===== */
.ultron-float-bubble {
  position: fixed;
  z-index: 2147483630;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  
  /* 默认位置：右下角 */
  top: auto;
  right: 20px;
  bottom: 20px;
  
  /* 初始隐藏状态 */
  opacity: 0;
  visibility: hidden;
  transform: scale(0.92) translateY(12px);
  transition: 
    opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0.35s,
    transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    left 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* 精美搜索栏样式 */
.ultron-float-bubble.ultron-float-search-bar {
  width: auto;
  min-width: 200px;
  max-width: 280px;
  height: auto;
}

/* 显示状态 */
.ultron-float-bubble.ultron-float-visible {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateY(0);
}

/* 拖拽中状态 */
.ultron-float-bubble.ultron-float-dragging {
  cursor: grabbing !important;
  transition: none !important;
}

.ultron-float-bubble.ultron-float-dragging .ultron-float-bar-inner {
  transform: scale(1.02);
  box-shadow:
    0 20px 50px color-mix(in srgb, var(--ultron-page-bg) 60%, transparent),
    0 0 0 1px color-mix(in srgb, var(--ultron-text-primary) 15%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--ultron-text-primary) 10%, transparent);
}

/* ===== 精美搜索栏内部结构 ===== */
.ultron-float-bar-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 14px;
  background: var(--ultron-modal-bg);
  border: 1px solid color-mix(in srgb, var(--ultron-text-primary) 20%, transparent);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--ultron-page-bg) 80%, black),
    0 8px 32px color-mix(in srgb, var(--ultron-page-bg) 70%, black),
    0 2px 8px color-mix(in srgb, var(--ultron-page-bg) 50%, black),
    inset 0 0 0 1px color-mix(in srgb, var(--ultron-text-primary) 8%, transparent);
  transition: 
    transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.25s ease,
    border-color 0.25s ease,
    border-radius 0.3s ease;
  font-family: var(--ultron-font-sans);
  font-size: var(--ultron-text-base);
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

/* Hover 效果 */
.ultron-float-bubble:hover .ultron-float-bar-inner {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--ultron-primary-light) 45%, transparent);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--ultron-primary) 35%, transparent),
    0 12px 40px color-mix(in srgb, var(--ultron-page-bg) 75%, black),
    0 4px 12px color-mix(in srgb, var(--ultron-primary) 20%, transparent),
    inset 0 0 0 1px color-mix(in srgb, var(--ultron-primary-light) 15%, transparent);
}

/* 点击效果 */
.ultron-float-bubble:active:not(.ultron-float-dragging) .ultron-float-bar-inner {
  transform: translateY(0) scale(0.98);
}

/* 搜索图标 */
.ultron-float-bar-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: var(--ultron-primary-light);
  flex-shrink: 0;
  transition: color 0.2s ease, transform 0.2s ease;
}

.ultron-float-bar-icon svg {
  width: 100%;
  height: 100%;
}

.ultron-float-bubble:hover .ultron-float-bar-icon {
  color: var(--ultron-accent-light);
  transform: scale(1.05);
}

/* 文字提示 */
.ultron-float-bar-text {
  flex: 1;
  font-size: var(--ultron-text-base);
  font-weight: var(--ultron-weight-normal);
  letter-spacing: -0.01em;
  color: var(--ultron-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.2s ease, font-weight 0.2s ease;
}

.ultron-float-bubble:hover .ultron-float-bar-text {
  color: var(--ultron-text-primary);
  font-weight: var(--ultron-weight-medium);
}

/* 快捷键提示 */
.ultron-float-bar-shortcut {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 9px;
  border-radius: 5px;
  background: color-mix(in srgb, var(--ultron-text-primary) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--ultron-text-primary) 15%, transparent);
  box-shadow: 
    0 2px 0 color-mix(in srgb, var(--ultron-page-bg) 50%, black),
    inset 0 1px 0 color-mix(in srgb, var(--ultron-text-primary) 10%, transparent);
  font-size: 11px;
  font-weight: var(--ultron-weight-bold);
  font-family: var(--ultron-font-mono);
  color: var(--ultron-text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.2s ease;
  letter-spacing: 0.04em;
}

.ultron-float-bubble:hover .ultron-float-bar-shortcut {
  background: color-mix(in srgb, var(--ultron-primary) 15%, transparent);
  border-color: color-mix(in srgb, var(--ultron-primary) 35%, transparent);
  box-shadow: 
    0 2px 0 color-mix(in srgb, var(--ultron-primary-dark) 40%, black),
    inset 0 1px 0 color-mix(in srgb, var(--ultron-primary-light) 15%, transparent);
  color: var(--ultron-text-secondary);
}

/* 背景光晕效果 */
.ultron-float-bar-glow {
  position: absolute;
  inset: -2px;
  border-radius: 16px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--ultron-primary) 40%, transparent) 0%,
    color-mix(in srgb, var(--ultron-accent) 40%, transparent) 50%,
    color-mix(in srgb, var(--ultron-accent-light) 40%, transparent) 100%
  );
  opacity: 0;
  z-index: -1;
  filter: blur(14px);
  transition: opacity 0.3s ease;
  pointer-events: none;
  will-change: opacity;
}

.ultron-float-bubble:hover .ultron-float-bar-glow {
  opacity: 0.5;
}

/* 键盘可达性 */
.ultron-float-bubble:focus-visible .ultron-float-bar-inner {
  outline: 2px solid var(--ultron-primary-light);
  outline-offset: 2px;
}

/* 提示动效：光晕呼吸（仅 opacity，避免 filter/border 动画触发昂贵的 backdrop-filter 重绘） */
.ultron-float-bubble.ultron-float-hint-active .ultron-float-bar-glow {
  animation: ultron-float-glow-pulse 2s ease-in-out infinite;
}

@keyframes ultron-float-glow-pulse {
  0%, 100% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.6;
  }
}

/* ===== 收起状态样式 ===== */
.ultron-float-bubble.ultron-float-collapsed {
  transition: 
    left 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.3s ease;
}

.ultron-float-bubble.ultron-float-collapsed .ultron-float-bar-inner {
  transition: 
    border-radius 0.3s ease,
    box-shadow 0.3s ease;
}

/* 收起到左侧 */
.ultron-float-bubble.ultron-float-collapsed-left .ultron-float-bar-inner {
  border-radius: 0 14px 14px 0;
  box-shadow:
    4px 0 20px color-mix(in srgb, var(--ultron-primary) 30%, transparent),
    0 4px 16px color-mix(in srgb, var(--ultron-page-bg) 60%, black);
}

/* 收起到右侧 */
.ultron-float-bubble.ultron-float-collapsed-right .ultron-float-bar-inner {
  border-radius: 14px 0 0 14px;
  box-shadow:
    -4px 0 20px color-mix(in srgb, var(--ultron-primary) 30%, transparent),
    0 4px 16px color-mix(in srgb, var(--ultron-page-bg) 60%, black);
}

/* 收起状态的呼吸发光提示（仅 opacity，避免 filter 动画重绘） */
.ultron-float-bubble.ultron-float-collapsed .ultron-float-bar-glow {
  filter: blur(10px);
  animation: ultron-collapsed-glow-pulse 2s ease-in-out infinite;
}

@keyframes ultron-collapsed-glow-pulse {
  0%, 100% {
    opacity: 0.4;
  }
  50% {
    opacity: 0.7;
  }
}

/* 收起状态边缘发光指示器 */
.ultron-float-bubble.ultron-float-collapsed-left::after,
.ultron-float-bubble.ultron-float-collapsed-right::after {
  content: '';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 40px;
  border-radius: 2px;
  background: linear-gradient(
    180deg,
    transparent 0%,
    var(--ultron-primary-light) 50%,
    transparent 100%
  );
  animation: ultron-edge-indicator-pulse 1.5s ease-in-out infinite;
  pointer-events: none;
}

.ultron-float-bubble.ultron-float-collapsed-left::after {
  right: 4px;
}

.ultron-float-bubble.ultron-float-collapsed-right::after {
  left: 4px;
}

@keyframes ultron-edge-indicator-pulse {
  0%, 100% {
    opacity: 0.3;
    height: 40px;
  }
  50% {
    opacity: 0.8;
    height: 50px;
  }
}

/* ===== 响应式调整 ===== */
@media (max-width: 640px) {
  .ultron-float-bubble {
    top: auto;
    right: 16px;
    bottom: 16px;
  }

  .ultron-float-bubble.ultron-float-search-bar {
    min-width: 160px;
    max-width: 220px;
  }

  .ultron-float-bar-inner {
    padding: 10px 14px;
    gap: 8px;
  }

  .ultron-float-bar-icon {
    width: 16px;
    height: 16px;
  }

  .ultron-float-bar-text {
    font-size: 13px;
  }

  .ultron-float-bar-shortcut {
    padding: 3px 6px;
    font-size: 11px;
  }
}

/* ===== 语言切换按钮（带分隔线） ===== */

/* 语言按钮（在搜索栏内部最左侧，带右侧分隔线） */
.ultron-float-lang-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: stretch;
  min-width: 40px;
  padding: 0 14px;
  margin: -12px 0 -12px -16px;
  padding-left: 16px;
  border-radius: 13px 0 0 13px;
  border: none;
  background: transparent;
  cursor: pointer;
  transition: background 0.2s ease;
  flex-shrink: 0;
}

/* 搜索区域 */
.ultron-float-search-area {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
  cursor: pointer;
}

/* 语言按钮右侧的分隔线 */
.ultron-float-lang-btn::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 20px;
  background: color-mix(in srgb, var(--ultron-text-primary) 20%, transparent);
  transition: background 0.2s ease;
}

/* 语言按钮 hover */
.ultron-float-lang-btn:hover {
  background: color-mix(in srgb, var(--ultron-primary) 10%, transparent);
}

.ultron-float-lang-btn:hover::after {
  background: color-mix(in srgb, var(--ultron-primary) 35%, transparent);
}

/* 语言按钮激活状态（下拉菜单展开时） */
.ultron-float-lang-btn.ultron-float-lang-active {
  background: color-mix(in srgb, var(--ultron-primary) 12%, transparent);
}

.ultron-float-lang-btn.ultron-float-lang-active::after {
  background: color-mix(in srgb, var(--ultron-primary) 40%, transparent);
}

/* 语言按钮图标/文字 */
.ultron-float-lang-label {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: var(--ultron-weight-semibold);
  color: var(--ultron-text-secondary);
  transition: color 0.2s ease;
  line-height: 1;
  letter-spacing: 0.02em;
}

/* SVG 图标（翻译图标） */
.ultron-float-lang-label svg {
  width: 16px;
  height: 16px;
}

.ultron-float-lang-btn:hover .ultron-float-lang-label {
  color: var(--ultron-primary);
}

.ultron-float-lang-btn.ultron-float-lang-active .ultron-float-lang-label {
  color: var(--ultron-primary);
}

/* 语言按钮加载状态 */
.ultron-float-lang-btn.ultron-float-lang-loading {
  pointer-events: none;
  cursor: default;
}

.ultron-float-lang-btn.ultron-float-lang-loading .ultron-float-lang-label {
  color: var(--ultron-primary);
}

/* 加载中的 spinner */
.ultron-float-lang-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid color-mix(in srgb, var(--ultron-primary) 30%, transparent);
  border-top-color: var(--ultron-primary);
  border-radius: 50%;
  animation: ultron-lang-spin 0.8s linear infinite;
}

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

/* ===== 语言下拉菜单 ===== */
.ultron-float-lang-dropdown {
  position: absolute;
  left: 12px;
  min-width: 150px;
  padding: 6px 0;
  border-radius: 12px;
  background: var(--ultron-modal-bg);
  border: 1px solid color-mix(in srgb, var(--ultron-text-primary) 15%, transparent);
  box-shadow:
    0 8px 32px color-mix(in srgb, var(--ultron-page-bg) 70%, black),
    0 2px 8px color-mix(in srgb, var(--ultron-page-bg) 50%, black);
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95) translateY(0);
  transition: 
    opacity 0.2s ease,
    visibility 0.2s ease,
    transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 10;
  pointer-events: none;
}

/* 向上展开（浮窗靠下时） */
.ultron-float-lang-dropdown.ultron-dropdown-up {
  bottom: calc(100% + 6px);
  transform-origin: bottom left;
}

/* 向下展开（浮窗靠上时） */
.ultron-float-lang-dropdown.ultron-dropdown-down {
  top: calc(100% + 6px);
  transform-origin: top left;
}

/* 下拉菜单显示状态 */
.ultron-float-lang-dropdown.ultron-dropdown-visible {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

/* 下拉菜单头部 */
.ultron-float-lang-header {
  padding: 8px 14px 6px;
  font-size: 11px;
  font-weight: var(--ultron-weight-semibold);
  color: var(--ultron-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* 语言列表滚动容器 */
.ultron-float-lang-list {
  max-height: 320px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--ultron-primary) 25%, transparent) transparent;
}

.ultron-float-lang-list::-webkit-scrollbar {
  width: 5px;
}

.ultron-float-lang-list::-webkit-scrollbar-track {
  background: transparent;
  margin: 4px 0;
}

.ultron-float-lang-list::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--ultron-primary) 25%, transparent);
  border-radius: 3px;
}

.ultron-float-lang-list::-webkit-scrollbar-thumb:hover {
  background: color-mix(in srgb, var(--ultron-primary) 45%, transparent);
}

/* 下拉菜单项 */
.ultron-float-lang-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  font-size: 14px;
  color: var(--ultron-text-secondary);
  cursor: pointer;
  transition: 
    background 0.15s ease,
    color 0.15s ease;
}

.ultron-float-lang-item:hover {
  background: color-mix(in srgb, var(--ultron-primary) 10%, transparent);
  color: var(--ultron-text-primary);
}

/* 当前选中的语言 */
.ultron-float-lang-item.ultron-lang-active {
  background: color-mix(in srgb, var(--ultron-primary) 12%, transparent);
  color: var(--ultron-primary);
  font-weight: var(--ultron-weight-medium);
}

.ultron-float-lang-item.ultron-lang-active:hover {
  background: color-mix(in srgb, var(--ultron-primary) 18%, transparent);
}

/* 选中标记 */
.ultron-float-lang-check {
  font-size: 14px;
  color: var(--ultron-primary);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.ultron-float-lang-item.ultron-lang-active .ultron-float-lang-check {
  opacity: 1;
}

/* 分隔线 */
.ultron-float-lang-divider {
  height: 1px;
  margin: 6px 14px;
  background: color-mix(in srgb, var(--ultron-text-primary) 10%, transparent);
}

/* 操作项（显示原文） */
.ultron-float-lang-item.ultron-lang-action {
  color: var(--ultron-text-muted);
  font-size: 13px;
}

.ultron-float-lang-item.ultron-lang-action:hover {
  color: var(--ultron-text-secondary);
}

/* ===== 响应式调整（语言按钮） ===== */
@media (max-width: 640px) {
  .ultron-float-lang-btn {
    min-width: 34px;
    padding: 0 10px;
    margin: -10px 0 -10px -14px;
    padding-left: 14px;
  }

  .ultron-float-lang-btn::after {
    height: 16px;
  }

  .ultron-float-lang-label {
    font-size: 12px;
  }

  .ultron-float-search-area {
    gap: 8px;
  }

  .ultron-float-lang-dropdown {
    min-width: 130px;
    left: 10px;
  }

  .ultron-float-lang-list {
    max-height: 260px;
  }

  .ultron-float-lang-item {
    padding: 10px 12px;
    font-size: 13px;
  }
}

/* ===== Translate-only mode (redesigned) ===== */

.ultron-float-bubble.ultron-float-translate-only {
  min-width: auto;
  --ultron-to-fg: #333;
  --ultron-to-bg: #fff;
}

.ultron-float-translate-only .ultron-float-bar-inner {
  padding: 0;
  border-radius: 10px;
  gap: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.ultron-float-bubble.ultron-float-translate-only:hover .ultron-float-bar-inner {
  transform: none;
  box-shadow: none;
}

.ultron-float-bubble.ultron-float-translate-only:active:not(.ultron-float-dragging) .ultron-float-bar-inner {
  transform: none;
}

.ultron-float-translate-only .ultron-float-bar-glow {
  display: none;
}

.ultron-float-bubble.ultron-float-translate-only.ultron-float-hint-active .ultron-float-bar-inner {
  animation: none;
}

.ultron-float-translate-only .ultron-float-lang-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 8px 14px;
  border-radius: 9px;
  flex: 1;
  min-width: auto;
}

.ultron-float-translate-only .ultron-float-lang-btn:hover,
.ultron-float-translate-only .ultron-float-lang-btn.ultron-float-lang-active {
  background: transparent;
}

.ultron-float-translate-only .ultron-float-lang-btn::after {
  display: none;
}

/* Translate icon */
.ultron-float-to-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--ultron-to-fg);
  transition: color 0.2s ease;
}

.ultron-float-to-icon svg {
  width: 100%;
  height: 100%;
}

.ultron-float-translate-only:hover .ultron-float-to-icon {
  color: var(--ultron-accent-light);
}

/* Language name display */
.ultron-float-translate-only .ultron-float-lang-label {
  font-size: 14px;
  font-weight: var(--ultron-weight-normal);
  letter-spacing: normal;
  white-space: nowrap;
  color: var(--ultron-to-fg);
}

/* Dropdown arrow */
.ultron-float-to-arrow {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--ultron-to-fg);
  opacity: 0.7;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.2s ease, opacity 0.2s ease;
}

.ultron-float-translate-only:hover .ultron-float-to-arrow {
  color: var(--ultron-accent-light);
  opacity: 1;
}

.ultron-float-translate-only .ultron-float-lang-btn.ultron-float-lang-active .ultron-float-to-arrow {
  transform: rotate(180deg);
}

/* ---- Translate-only dropdown ---- */

.ultron-float-translate-only .ultron-float-lang-dropdown {
  left: 0;
  min-width: 100%;
  width: max-content;
  padding: 4px;
  border-radius: 14px;
  background: var(--ultron-to-bg);
  border: 1px solid color-mix(in srgb, var(--ultron-to-fg) 12%, transparent);
  box-shadow: 0 8px 32px color-mix(in srgb, var(--ultron-to-fg) 12%, transparent);
  transform: scale(0.96) translateY(8px);
}

.ultron-float-translate-only .ultron-float-lang-dropdown.ultron-dropdown-up {
  bottom: calc(100% + 10px);
  transform-origin: bottom center;
}

.ultron-float-translate-only .ultron-float-lang-dropdown.ultron-dropdown-down {
  top: calc(100% + 10px);
  transform-origin: top center;
}

.ultron-float-translate-only .ultron-float-lang-dropdown.ultron-dropdown-visible {
  transform: scale(1) translateY(0);
}

/* Dropdown items with left indicator bar */
.ultron-float-translate-only .ultron-float-lang-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  padding: 12px 14px 12px 22px;
  border-radius: 8px;
  font-size: 14px;
  color: color-mix(in srgb, var(--ultron-to-fg) 70%, transparent);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}

.ultron-float-translate-only .ultron-float-lang-item:hover {
  background: color-mix(in srgb, var(--ultron-to-fg) 6%, transparent);
  color: var(--ultron-to-fg);
}

.ultron-float-translate-only .ultron-float-lang-item.ultron-lang-active {
  color: var(--ultron-primary);
  font-weight: var(--ultron-weight-semibold);
  background: transparent;
}

.ultron-float-translate-only .ultron-float-lang-item.ultron-lang-active:hover {
  background: color-mix(in srgb, var(--ultron-primary) 10%, var(--ultron-to-bg));
}

/* Left indicator bar */
.ultron-float-translate-only .ultron-float-lang-item::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 50%;
  width: 4px;
  height: 0;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--ultron-primary), var(--ultron-primary-light));
  transform: translateY(-50%);
  transition: height 0.2s ease;
}

.ultron-float-translate-only .ultron-float-lang-item:hover::before,
.ultron-float-translate-only .ultron-float-lang-item.ultron-lang-active::before {
  height: 18px;
}

/* Hide check marks in translate-only */
.ultron-float-translate-only .ultron-float-lang-check {
  display: none;
}

/* Flag emoji */
.ultron-float-lang-flag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 3px;
  font-size: 14px;
  flex-shrink: 0;
}

.ultron-float-translate-only .ultron-float-lang-flag {
  display: none;
}

/* Show original action */
.ultron-float-translate-only .ultron-float-lang-item.ultron-lang-action {
  justify-content: flex-start;
  padding: 12px 14px 12px 22px;
  margin-top: 0;
  border-top: 1px solid color-mix(in srgb, var(--ultron-to-fg) 12%, transparent);
  border-radius: 0 0 10px 10px;
  color: color-mix(in srgb, var(--ultron-to-fg) 50%, transparent);
  font-size: 14px;
}

.ultron-float-translate-only .ultron-float-lang-item.ultron-lang-action::before {
  display: none;
}

.ultron-float-translate-only .ultron-float-lang-item.ultron-lang-action:hover {
  background: color-mix(in srgb, var(--ultron-to-fg) 6%, transparent);
  color: var(--ultron-to-fg);
}

/* Hide unused elements in translate-only dropdown */
.ultron-float-translate-only .ultron-float-lang-header {
  display: none;
}

.ultron-float-translate-only .ultron-float-lang-divider {
  display: none;
}

@media (max-width: 640px) {
  .ultron-float-translate-only .ultron-float-bar-inner {
    padding: 0;
  }

  .ultron-float-translate-only .ultron-float-lang-btn {
    gap: 6px;
    padding: 7px 12px;
  }

  .ultron-float-to-icon {
    width: 18px;
    height: 18px;
  }

  .ultron-float-translate-only .ultron-float-lang-label {
    font-size: 13px;
  }

  .ultron-float-to-arrow {
    width: 14px;
    height: 14px;
  }

  .ultron-float-translate-only .ultron-float-lang-dropdown {
    min-width: 100%;
  }
}