/* ========================================
   主题变量定义
   ======================================== */

/* 经典浅色 (Light) - 默认主题 */
:root {
  /* 背景色 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f0f1f2;
  --bg-sidebar: #f8f9fa;
  --bg-card: #ffffff;
  --bg-hover: #f0f1f2;

  /* 文字色 */
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a5a;
  --text-muted: #6b7280;
  --text-inverse: #ffffff;

  /* 边框 */
  --border-color: #e5e7eb;
  --border-light: #f0f1f2;
  --border-focus: #3b82f6;

  /* 主色调 */
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --primary-light: #eff6ff;

  /* 功能色 */
  --success-color: #22c55e;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #3b82f6;

  /* 警示背景色（用于空值提示） */
  --warning-bg: rgba(234, 179, 8, 0.25);

  /* 下拉框选项配色 */
  --select-option-bg: #ffffff;
  --select-option-text: #1a1a2e;

  /* 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);

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", monospace;

  /* 过渡 */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

/* 暗夜黑 (Dark) */
[data-theme="dark"] {
  --bg-primary: #0d0d0d;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #262626;
  --bg-sidebar: #141414;
  --bg-card: #1a1a1a;
  --bg-hover: #262626;

  --text-primary: #fafafa;
  --text-secondary: #a3a3a3;
  --text-muted: #737373;
  --text-inverse: #0d0d0d;

  --border-color: #333333;
  --border-light: #1f1f1f;
  --border-focus: #60a5fa;

  --primary-color: #60a5fa;
  --primary-hover: #3b82f6;
  --primary-light: rgba(96, 165, 250, 0.15);

  /* 警示背景色（暗色主题使用深橙色确保对比度） */
  --warning-bg: rgba(180, 83, 9, 0.6);

  /* 下拉框选项配色（暗色主题需要深色背景配浅色文字） */
  --select-option-bg: #262626;
  --select-option-text: #fafafa;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

/* Claude紫 (Claude) */
[data-theme="claude"] {
  --bg-primary: #faf9f7;
  --bg-secondary: #f5f3ef;
  --bg-tertiary: #edeae4;
  --bg-sidebar: #f5f3ef;
  --bg-card: #ffffff;
  --bg-hover: #edeae4;

  --text-primary: #3d3929;
  --text-secondary: #5c5645;
  --text-muted: #8a8372;
  --text-inverse: #faf9f7;

  --border-color: #d9d4c5;
  --border-light: #e8e4d9;
  --border-focus: #d4a574;

  --primary-color: #d97757;
  --primary-hover: #c45e3d;
  --primary-light: #fdf2ed;

  --success-color: #65a30d;
  --warning-color: #d97706;
  --danger-color: #dc2626;
  --info-color: #7c6fae;

  /* 警示背景色 */
  --warning-bg: rgba(217, 119, 6, 0.2);

  /* 下拉框选项配色 */
  --select-option-bg: #ffffff;
  --select-option-text: #3d3929;

  --shadow-sm: 0 1px 2px 0 rgba(61, 57, 41, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(61, 57, 41, 0.08);
  --shadow-lg: 0 10px 15px -3px rgba(61, 57, 41, 0.1);
}

/* 午夜蓝 (Midnight) */
[data-theme="midnight"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-sidebar: #1e293b;
  --bg-card: #1e293b;
  --bg-hover: #334155;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #0f172a;

  --border-color: #334155;
  --border-light: #1e293b;
  --border-focus: #818cf8;

  --primary-color: #818cf8;
  --primary-hover: #6366f1;
  --primary-light: rgba(129, 140, 248, 0.15);

  --success-color: #34d399;
  --warning-color: #fbbf24;
  --danger-color: #f87171;
  --info-color: #60a5fa;

  /* 警示背景色（暗色主题使用深橙色确保对比度） */
  --warning-bg: rgba(180, 83, 9, 0.6);

  /* 下拉框选项配色（暗色主题需要深色背景配浅色文字） */
  --select-option-bg: #334155;
  --select-option-text: #f8fafc;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

/* 暖沙色 (Dune) */
[data-theme="dune"] {
  --bg-primary: #fdfcf8;
  --bg-secondary: #f7f4ee;
  --bg-tertiary: #ede8df;
  --bg-sidebar: #f7f4ee;
  --bg-card: #ffffff;
  --bg-hover: #ede8df;

  --text-primary: #433a31;
  --text-secondary: #6b5d50;
  --text-muted: #9a8a7a;
  --text-inverse: #fdfcf8;

  --border-color: #ddd5c7;
  --border-light: #e8e2d9;
  --border-focus: #b45309;

  --primary-color: #b45309;
  --primary-hover: #92400e;
  --primary-light: #fff7ed;

  --success-color: #15803d;
  --warning-color: #b45309;
  --danger-color: #dc2626;
  --info-color: #0369a1;

  /* 警示背景色 */
  --warning-bg: rgba(180, 83, 9, 0.18);

  /* 下拉框选项配色 */
  --select-option-bg: #ffffff;
  --select-option-text: #433a31;

  --shadow-sm: 0 1px 2px 0 rgba(67, 58, 49, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(67, 58, 49, 0.08);
  --shadow-lg: 0 10px 15px -3px rgba(67, 58, 49, 0.1);
}

/* 森林绿 (Forest) */
[data-theme="forest"] {
  --bg-primary: #f8faf9;
  --bg-secondary: #ecf3ed;
  --bg-tertiary: #ddeadd;
  --bg-sidebar: #ecf3ed;
  --bg-card: #ffffff;
  --bg-hover: #ddeadd;

  --text-primary: #1a2e1a;
  --text-secondary: #2d4a2d;
  --text-muted: #5a7a5a;
  --text-inverse: #f8faf9;

  --border-color: #c5d9c5;
  --border-light: #ddeadd;
  --border-focus: #166534;

  --primary-color: #166534;
  --primary-hover: #14532d;
  --primary-light: #f0fdf4;

  --success-color: #16a34a;
  --warning-color: #ca8a04;
  --danger-color: #dc2626;
  --info-color: #0891b2;

  /* 警示背景色 */
  --warning-bg: rgba(202, 138, 4, 0.2);

  /* 下拉框选项配色 */
  --select-option-bg: #ffffff;
  --select-option-text: #1a2e1a;

  --shadow-sm: 0 1px 2px 0 rgba(22, 101, 52, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(22, 101, 52, 0.08);
  --shadow-lg: 0 10px 15px -3px rgba(22, 101, 52, 0.1);
}

/* 向后兼容 */
body.dark-theme {
  --bg-primary: #0d0d0d;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #262626;
  --bg-sidebar: #141414;
  --bg-card: #1a1a1a;
  --bg-hover: #262626;

  --text-primary: #fafafa;
  --text-secondary: #a3a3a3;
  --text-muted: #737373;
  --text-inverse: #0d0d0d;

  --border-color: #333333;
  --border-light: #1f1f1f;
  --border-focus: #60a5fa;

  --primary-color: #60a5fa;
  --primary-hover: #3b82f6;
  --primary-light: rgba(96, 165, 250, 0.15);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

/* ========================================
   基础样式
   ======================================== */

* {
  box-sizing: border-box;
}

/* 下拉框选项全局样式 */
select option {
  background-color: var(--select-option-bg);
  color: var(--select-option-text);
}

html {
  font-size: 14px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* 主容器 */
.main-wrapper {
  flex: 1;
  padding: 16px;
  margin-left: 30px;
  transition: margin-left var(--transition-base);
  width: calc(100% - 30px);
}

.container {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
  flex-wrap: nowrap;
  width: 100%;
}

/* ========================================
   编辑器容器
   ======================================== */

.editor-container {
  display: flex;
  width: 42.5%;
  min-width: 300px;
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: box-shadow var(--transition-fast);
}

.editor-container:hover {
  box-shadow: var(--shadow-lg);
}

.editor-container:focus-within {
  box-shadow: 0 0 0 2px var(--primary-color), var(--shadow-lg);
}

/* 内容编辑区 */
.contenteditable-textarea {
  flex: 1;
  height: 210px;
  border: none;
  padding: var(--spacing-md);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-y: auto;
  background-color: transparent;
  color: var(--text-primary);
  outline: none;
  resize: none;
}

.contenteditable-textarea:empty:before {
  content: attr(placeholder);
  color: var(--text-muted);
  pointer-events: none;
}

#outputText {
  background-color: var(--bg-secondary);
}

/* ========================================
   按钮组
   ======================================== */

.button-group {
  display: flex;
  flex-direction: column;
  width: 44px;
  border-left: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.toggle-button,
.copy-button,
.clear-button,
.sumbit-button {
  width: 44px;
  border: none;
  background: transparent;
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

.toggle-button {
  height: 210px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
}

.toggle-button:hover {
  background: var(--bg-hover);
}

.toggle-button::before {
  content: '';
  width: 20px;
  height: 20px;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%236b7280" stroke-width="2"><path d="M7 16V4m0 0L3 8m4-4l4 4m6 0v12m0 0l4-4m-4 4l-4-4"/></svg>');
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.7;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.toggle-button:hover::before {
  transform: scale(1.1);
  opacity: 1;
}

.toggle-button.active::before {
  transform: rotate(180deg);
}

.copy-button,
.clear-button {
  height: 105px;
  background: var(--bg-secondary);
}

.copy-button {
  border-bottom: 1px solid var(--border-color);
}

.copy-button::before,
.clear-button::before {
  content: '';
  width: 18px;
  height: 18px;
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.6;
  transition: all var(--transition-fast);
}

.copy-button::before {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%236b7280" stroke-width="2"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"/><path d="M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1"/></svg>');
}

.clear-button::before {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%23ef4444" stroke-width="2"><polyline points="3 6 5 6 21 6"/><path d="M19 6v14a2 2 0 01-2 2H7a2 2 0 01-2-2V6m3 0V4a2 2 0 012-2h4a2 2 0 012 2v2"/></svg>');
}

.copy-button:hover::before,
.clear-button:hover::before {
  transform: scale(1.1);
  opacity: 1;
}

.copy-button:hover,
.clear-button:hover {
  background: var(--bg-hover);
}

.sumbit-button {
  width: 60px;
  height: 210px;
  background: var(--primary-color);
  border-left: 1px solid var(--border-color);
  transition: background-color var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.sumbit-button::before {
  content: '';
  width: 24px;
  height: 24px;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2.5"><polyline points="20 6 9 17 4 12"/></svg>');
  background-size: contain;
  background-repeat: no-repeat;
  transition: transform var(--transition-fast);
}

.sumbit-button:hover {
  background: var(--primary-hover);
}

.sumbit-button:hover::before {
  transform: scale(1.1);
}

.sumbit-button:active::before {
  transform: scale(0.95);
}

/* ========================================
   符号按钮
   ======================================== */

.symbol-buttons {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-shrink: 0;
}

.symbol-btn {
  width: 56px;
  height: 36px;
  border: 2px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-secondary);
  font-size: 18px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

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

.symbol-btn.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
  box-shadow: var(--shadow-sm);
}

/* ========================================
   表单组
   ======================================== */

.form-group {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 7.5px;
  width: 120px;
  height: 210px;
  flex-shrink: 0;
}

.form-group select {
  width: 100%;
  height: 36px;
  padding: 0 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  color: var(--text-primary);
  font-size: 13px;
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  text-align: center;
  text-align-last: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.form-group select:hover {
  border-color: var(--text-muted);
}

.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
}

/* ========================================
   按钮容器
   ======================================== */

.button-container {
  display: flex;
  flex-direction: column;
  gap: 7.5px;
  width: 100%;
  margin-top: auto;
  flex: 1;
  justify-content: flex-end;
}

.button-container button {
  padding: 0 10px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  white-space: nowrap;
}

.add-table-button {
  background: var(--primary-color);
  color: var(--text-inverse);
}

.add-table-button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.add-button:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* 表格内的删除按钮 - 使用图标样式 */
#dynamicTable td .delete-button {
  width: 80%;
  height: 80%;
  min-height: 32px;
  padding: 0;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  color: var(--text-muted);
}

#dynamicTable td .delete-button::before {
  content: '';
  width: 18px;
  height: 18px;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%236b7280" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="3 6 5 6 21 6"/><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/><line x1="10" y1="11" x2="10" y2="17"/><line x1="14" y1="11" x2="14" y2="17"/></svg>');
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.7;
  transition: all var(--transition-fast);
}

#dynamicTable td .delete-button:hover {
  background: var(--danger-color);
  color: white;
}

#dynamicTable td .delete-button:hover::before {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="3 6 5 6 21 6"/><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/><line x1="10" y1="11" x2="10" y2="17"/><line x1="14" y1="11" x2="14" y2="17"/></svg>');
  opacity: 1;
}

/* 表单区域的删除按钮保持原有样式 */
.delete-button {
  background: var(--danger-color);
  color: white;
}

.delete-button:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.AI-button {
  display: none;
}

/* AI单元格 */
.column-03 {
  text-align: center;
  vertical-align: middle;
}

/* AI 确认按钮 - 图标样式，和删除按钮一致 */
#dynamicTable td .AI-button.ai-visible {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80%;
  height: 80%;
  min-height: 32px;
  margin: 0 auto;
  padding: 0;
  border: none;
  border-radius: var(--radius-md);
  background: var(--success-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}

#dynamicTable td .AI-button.ai-visible::before {
  content: '✓';
  font-size: 16px;
  font-weight: bold;
  color: white;
  line-height: 1;
}

#dynamicTable td .AI-button.ai-visible:hover {
  opacity: 0.8;
}

/* ========================================
   锁定行样式
   ======================================== */

.locked-line {
  user-select: none;
  color: var(--text-muted);
  display: block;
  text-decoration: line-through;
  text-decoration-color: var(--text-muted);
  text-decoration-thickness: 2px;
}

/* ========================================
   表格样式
   ======================================== */

table {
  border-collapse: separate;
  border-spacing: 0;
  width: 95%;
  margin: 10px auto 20px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

th, td {
  border-bottom: 1px solid var(--border-color);
  text-align: center;
  padding: var(--spacing-sm);
  box-shadow: inset 0 0 0 0.5px color-mix(in srgb, var(--border-color) 50%, transparent);
}

th {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

th:first-child {
  border-top-left-radius: var(--radius-lg);
}

th:last-child {
  border-top-right-radius: var(--radius-lg);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: var(--bg-hover);
}

td input[type="text"],
td input[type="url"],
td input[type="date"],
td select {
  width: 100%;
  height: 100%;
  border: none;
  padding: var(--spacing-sm);
  background: transparent;
  color: var(--text-primary);
  font-size: 13px;
  text-align: center;
}

td input:focus,
td select:focus {
  outline: none;
}

.column-3 { width: 4%; font-size: 13px; }
.column-5 { width: 6%; font-size: 13px; }
.column-30 { width: 18%; font-size: 13px; }

.column-3 input[type="checkbox"] {
  width: 100%;
  height: 100%;
  margin: 0;
  zoom: 1.8;
  cursor: pointer;
  accent-color: var(--primary-color);
}

/* ========================================
   弹窗样式
   ======================================== */

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  justify-content: center;
  align-items: center;
  z-index: 2999;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background: var(--bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 900px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease;
}

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

#textinfo {
  width: 100%;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  resize: vertical;
  min-height: 100px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

#textinfo:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.modal-select-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-sm);
}

.modal-select-group select,
.modal-select-group input {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.modal-select-group select:focus,
.modal-select-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.modal-content button {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--primary-color);
  color: var(--text-inverse);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-content button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.modal-content button:last-child {
  background: var(--success-color);
  margin-left: var(--spacing-sm);
}

.modal-content button:last-child:hover {
  opacity: 0.9;
}

.highlight-empty {
  background-color: var(--warning-bg) !important;
}

.aicell {
  background-color: var(--primary-light) !important;
}

/* ========================================
   复制成功提示
   ======================================== */

.copy-success-message {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  z-index: 3000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.copy-success-message.show {
  opacity: 1;
}

/* ========================================
   侧边栏样式
   ======================================== */

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 200px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  transition: width var(--transition-base), background-color var(--transition-base);
  z-index: 1000;
  display: flex;
  flex-direction: column;
}

.sidebar.collapsed {
  width: 30px;
}

.sidebar-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-right: 30px;
}

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

.sidebar-top {
  list-style-type: none;
  text-align: center;
  padding: var(--spacing-sm);
  margin: 0;
  flex: 1;
  overflow-y: auto;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-top li {
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--border-light);
  font-size: 0.9em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-secondary);
}

.sidebar-toggle {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 30px;
  background: var(--bg-tertiary);
  border: none;
  border-left: 1px solid var(--border-color);
  cursor: pointer;
  font-size: 16px;
  color: var(--text-secondary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar-menu {
  list-style-type: none;
  text-align: center;
  padding: 0;
  margin: 0;
  width: 100%;
  overflow-y: auto;
  max-height: 50vh;
}

.sidebar-menu li {
  border-bottom: 1px solid var(--border-light);
  transition: background-color var(--transition-fast);
}

.sidebar-menu li a {
  display: block;
  padding: var(--spacing-md) var(--spacing-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.sidebar-menu li a:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

/* 主题下拉菜单 */
.theme-dropdown {
  position: relative;
}

.theme-dropdown > a {
  display: flex !important;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.dropdown-arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.theme-dropdown.open .dropdown-arrow {
  transform: rotate(180deg);
}

.theme-menu {
  display: none;
  list-style: none;
  padding: 0;
  margin: 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  width: 100%;
  overflow: hidden;
}

.theme-dropdown.open .theme-menu {
  display: block;
  animation: fadeIn 0.15s ease;
}

.theme-menu li {
  border-bottom: 1px solid var(--border-light);
}

.theme-menu li:last-child {
  border-bottom: none;
}

.theme-menu li a {
  padding: var(--spacing-sm) var(--spacing-md) !important;
  text-align: center;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.theme-menu li a:hover {
  background: var(--bg-hover);
}

.theme-menu li a.active {
  background: var(--primary-light);
  color: var(--primary-color);
  font-weight: 500;
}

/* ========================================
   AI 开关
   ======================================== */

.ai-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-tertiary);
  padding: 6px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

.ai-switch.off {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

.ai-switch.on {
  background: var(--primary-color);
  color: var(--text-inverse);
}

.ai-switch-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  transition: background-color var(--transition-fast);
}

.ai-switch.off .ai-switch-indicator {
  background-color: var(--danger-color);
}

.ai-switch.on .ai-switch-indicator {
  background-color: var(--success-color);
}

/* ========================================
   通知相关
   ======================================== */

.notification-banner {
  position: fixed;
  top: 0;
  left: 30px;
  right: 0;
  height: 40px;
  background: var(--primary-light);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 998;
  transition: background-color var(--transition-base);
}

.marquee {
  width: calc(100% - 40px);
  overflow: hidden;
  white-space: nowrap;
  position: relative;
  cursor: pointer;
}

.marquee span {
  display: inline-block;
  padding-left: 100%;
  animation: scroll-left 20s linear infinite;
  color: var(--primary-color);
  font-weight: 500;
}

.marquee:hover span {
  animation-play-state: paused;
}

@keyframes scroll-left {
  0% { transform: translateX(0); }
  100% { transform: translateX(-100%); }
}

.notification-close {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 20px;
  color: var(--text-muted);
  cursor: pointer;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.notification-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ========================================
   弹窗内部样式
   ======================================== */

.notification-modal-inner,
.notification-manager-inner {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 600px;
  overflow: hidden;
  animation: slideUp 0.3s ease;
}

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

.modal-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

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

.notification-editor {
  padding: var(--spacing-lg);
}

.notification-content {
  width: 100%;
  min-height: 120px;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  outline: none;
  resize: vertical;
}

.notification-content:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.modal-footer {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

.btn-primary,
.btn-secondary,
.btn-outline {
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

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

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

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}

.btn-outline:hover {
  background: var(--primary-light);
}

.form-section {
  padding: var(--spacing-lg);
}

.section-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  font-size: 14px;
}

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

.time-select {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
}

.time-separator {
  color: var(--text-muted);
}

.fetch-status {
  padding: 0 var(--spacing-lg) var(--spacing-sm);
  font-size: 14px;
  color: var(--success-color);
}

.action-buttons {
  display: flex;
  gap: var(--spacing-sm);
}

/* ========================================
   工具提示
   ======================================== */

.custom-tooltip {
  position: absolute;
  display: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.4;
  z-index: 10000;
  pointer-events: none;
  animation: fadeIn 0.1s ease-in;
  box-shadow: var(--shadow-md);
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.time-tooltip {
  white-space: nowrap;
}

.text-tooltip {
  max-width: 300px;
  white-space: normal;
  word-wrap: break-word;
}

.custom-tooltip::after {
  content: '';
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 0 5px 5px 5px;
  border-style: solid;
  border-color: transparent transparent var(--border-color) transparent;
}

/* ========================================
   滚动条美化
   ======================================== */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: var(--radius-full);
  opacity: 0.5;
}

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

/* ========================================
   表格宽度对齐
   ======================================== */

table {
  width: calc(85% + 144px);
  max-width: calc(85% + 144px);
}

/* ========================================
   响应式设计
   ======================================== */

@media (max-width: 1200px) {
  .container {
    flex-wrap: wrap;
  }

  .editor-container {
    width: 100%;
    max-width: 600px;
  }

  .form-group {
    width: 100%;
    max-width: 600px;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    height: auto;
  }

  .button-container {
    flex-direction: row;
    justify-content: center;
  }

  table {
    width: 95%;
    max-width: 95%;
  }
}

@media (max-width: 768px) {
  .main-wrapper {
    padding: var(--spacing-sm);
  }

  table {
    font-size: 12px;
  }

  th, td {
    padding: var(--spacing-xs);
  }
}

/* ========================================
   向后兼容
   ======================================== */

body.dark-theme .sidebar {
  background-color: var(--bg-sidebar);
}

body.dark-theme .sidebar-menu li {
  border-bottom-color: var(--border-color);
}

body.dark-theme .sidebar-menu li a {
  color: var(--text-secondary);
}

body.dark-theme .sidebar-menu li a:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

body.dark-theme .sidebar-toggle {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

body.dark-theme .sidebar-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

body.dark-theme .contenteditable-textarea {
  background-color: transparent;
  color: var(--text-primary);
}

body.dark-theme #outputText {
  background-color: var(--bg-secondary);
}

body.dark-theme .copy-button,
body.dark-theme .clear-button,
body.dark-theme .toggle-button {
  background: var(--bg-secondary);
}

body.dark-theme .button-group {
  background: var(--bg-secondary);
  border-left-color: var(--border-color);
}

body.dark-theme table {
  border-color: var(--border-color);
}

body.dark-theme th {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
}

body.dark-theme td {
  border-color: var(--border-color);
}

body.dark-theme input,
body.dark-theme select {
  background-color: transparent;
  color: var(--text-primary);
}

body.dark-theme .symbol-btn {
  background-color: var(--bg-card);
  border-color: var(--border-color);
  color: var(--text-secondary);
}

body.dark-theme .symbol-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

body.dark-theme .modal-content {
  background: var(--bg-card);
}

body.dark-theme #textinfo {
  background: var(--bg-primary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

body.dark-theme .notification-modal-inner,
body.dark-theme .notification-manager-inner {
  background: var(--bg-card);
}

body.dark-theme .notification-content {
  background: var(--bg-primary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

body.dark-theme .custom-tooltip {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-color);
}

/* ========================================
   copyTable 样式 - 确保复制到 Excel 时垂直居中
   ======================================== */
#copyTable td {
  vertical-align: middle;
  text-align: center;
  padding: 8px;
  border: 1px solid #ccc;
  font-size: 10pt;
}