/**
 * CSS 核心变量和基础样式
 */

:root {
  /* 色彩系统 - GitHub 风格 */
  --bg: #f6f8fa;
  --panel: #ffffff;
  --subtle: #f6f8fa;
  --border: #d0d7de;
  --muted: #57606a;
  --text: #1f2328;
  --primary: #0969da;
  --success: #1a7f37;
  --warning: #bf8700;
  --danger: #d1242f;
  --ring: 0 0 0 3px rgba(9, 105, 218, .25);

  /* 尺寸系统 */
  --card-radius: 12px;
  --preview-width: 960px;
  --preview-padding: 32px;
  --sidebar-width: 380px;
  
  /* 阴影系统 */
  --shadow-sm: 0 1px 2px rgba(31, 35, 40, .04);
  --shadow-md: 0 3px 6px rgba(140, 149, 159, .15);
  --shadow-lg: 0 8px 24px rgba(140,149,159,.2);
  --shadow-xl: 0 16px 32px rgba(31, 35, 40, .15);
  
  /* 动效系统 */
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* 字体系统 */
  --font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Inter, Roboto, Noto Sans SC, Arial, sans-serif;
  --font-mono: 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  --font-serif: Lora, Georgia, 'Times New Roman', Times, serif;
}

/* 暗色主题 */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --panel: #161b22;
    --subtle: #21262d;
    --border: #30363d;
    --muted: #7d8590;
    --text: #e6edf3;
    --primary: #58a6ff;
    --success: #3fb950;
    --warning: #d29922;
    --danger: #f85149;
  }
}

/* 基础重置 */
* { 
  box-sizing: border-box;
  transform: translateZ(0); /* GPU 加速 */
  backface-visibility: hidden;
}

html, body { 
  height: 100%;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior: none;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  contain: layout style paint;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* 基础布局系统 */
.container {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: 24px;
  padding: 24px;
  align-items: start;
  min-height: 100vh;
  will-change: transform;
}

/* 实用工具类 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.loading {
  opacity: 0.6;
  pointer-events: none;
  transition: var(--transition);
  position: relative;
}

.generating {
  cursor: progress;
}

.generating * {
  pointer-events: none;
}

/* 滚动条优化 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--subtle);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}/**
 * 布局和响应式样式
 */

/* 主要区域布局 */
.sidebar {
  background: var(--panel);
  border-radius: var(--card-radius);
  padding: 20px;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 24px;
  border: 1px solid var(--border);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.preview-area {
  display: grid;
  gap: 16px;
  align-items: start;
}

.preview-card {
  width: min(100%, calc(var(--preview-width) + 32px));
  margin: 0 auto;
  background: var(--panel);
  border-radius: var(--card-radius);
  padding: 16px;
  box-shadow: var(--shadow-lg);
  overflow: auto;
  border: 1px solid var(--border);
  position: relative;
  max-height: calc(100vh - 150px);
  transform: translateZ(0);
  will-change: transform;
  contain: layout style paint;
}

/* 捕获区域 */
#capture-area {
  width: var(--preview-width);
  margin: 0 auto;
  color: var(--text);
  border-radius: 12px;
  overflow: visible;
  border: 1px solid var(--border);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  transform: translateZ(0);
  contain: layout style;
}

.content-wrap {
  padding: var(--preview-padding);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  overflow: visible;
  flex-grow: 1;
}

.content-text {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 20px;
  line-height: 1.7;
  max-width: 72ch;
  margin: 0 auto;
  transition: var(--transition);
  min-height: 100px;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.content-text::selection {
  background: rgba(88,166,255,.35);
}

/* 品牌页脚 */
.brand-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--subtle);
}

.brand-left {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
}

.brand-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
  background: #e5e7eb;
  display: none;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  aspect-ratio: 1;
  object-fit: contain;
}

.brand-name {
  font-weight: 700;
  font-size: 14px;
  color: #111827;
}

.brand-right .brand-mark {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .02em;
}

/* 响应式设计 */
@media (max-width: 1080px) {
  .container {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
    max-height: none;
  }
  .preview-card, .export-controls {
    width: 100%;
  }
  #capture-area {
    width: 100%;
  }
  .preview-toolbar {
    position: sticky;
    top: 0;
    z-index: 10;
  }
}

@media (max-width: 768px) {
  .container {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px;
    min-height: 100vh;
  }
  
  .sidebar {
    order: 2;
    position: sticky;
    top: 0;
    background: var(--panel);
    border-radius: var(--card-radius);
    padding: 16px;
    box-shadow: var(--shadow-md);
    z-index: 100;
  }
  
  .preview-area {
    order: 1;
  }
  
  .preview-card {
    margin: 0 auto;
    max-width: 100%;
    overflow-x: auto;
  }
  
  #capture-area {
    min-width: 320px;
    transform-origin: top left;
    min-height: 200px;
    overflow: visible;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 8px;
    gap: 12px;
  }
  
  .sidebar {
    padding: 12px;
  }
  
  .panel-group {
    margin-bottom: 16px;
  }
  
  .field {
    margin-bottom: 12px;
  }
  
  .export-controls {
    padding: 12px;
  }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
  .icon-btn,
  .preset-btn,
  .secondary-btn,
  .primary-btn {
    min-height: 44px;
    min-width: 44px;
  }
  
  .range-field input[type="range"] {
    height: 44px;
  }
  
  .field input,
  .field select,
  .field textarea {
    min-height: 44px;
    font-size: 16px;
  }
}

/* 全屏模式 */
.preview-card:fullscreen {
  background: var(--bg);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-card:fullscreen #capture-area {
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
  height: auto;
}/**
 * UI 组件样式
 */

/* 标题和面板 */
.app-title {
  margin: 0 0 16px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-title::before {
  content: "🎨";
  font-size: 20px;
}

.panel-group {
  margin: 16px 0;
  padding: 12px 0;
  border-top: 1px solid var(--border);
}

.panel-group:first-of-type { 
  border-top: none; 
  padding-top: 0; 
}

.group-title {
  margin: 2px 0 12px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 6px;
}

.panel-label {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
  color: var(--text);
  font-weight: 500;
}

/* 表单字段 */
.field {
  display: grid;
  gap: 8px;
  margin: 12px 0;
}

.field.colors {
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field.range-field {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.range-value {
  font-weight: 600;
  color: var(--primary);
  min-width: 40px;
  text-align: right;
  font-size: 13px;
}

/* 输入控件基础样式 */
.text-input,
select, 
input[type="text"], 
input[type="file"], 
input[type="range"],
input[type="number"] {
  border: 2px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: var(--font-sans);
  outline: none;
  background: var(--panel);
  color: var(--text);
  transition: var(--transition);
}

.text-input {
  width: 100%;
  height: 200px;
  resize: vertical;
  border-radius: 8px;
  padding: 16px;
  line-height: 1.6;
}

.text-input:focus,
select:focus, 
input[type="text"]:focus, 
input[type="file"]:focus,
input[type="number"]:focus {
  border-color: var(--primary);
  box-shadow: var(--ring);
}

.text-input::placeholder {
  color: var(--muted);
  opacity: 0.8;
}

/* 下拉选择器 */
select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 8px center;
  background-repeat: no-repeat;
  background-size: 16px;
  padding-right: 36px;
  line-height: 1.5;
}

/* 范围滑块 */
input[type="range"] {
  height: 32px;
  background: transparent;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--panel);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

/* 颜色选择器 */
input[type="color"] {
  width: 100%;
  height: 40px;
  padding: 4px;
  border-radius: 6px;
  border: 2px solid var(--border);
  background: var(--panel);
  cursor: pointer;
  transition: var(--transition);
}

input[type="color"]:hover {
  border-color: var(--primary);
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 4px;
}

/* 复选框样式 */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text);
}

.checkbox-label input[type="checkbox"] {
  display: none;
}

.checkmark {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-radius: 4px;
  background: var(--panel);
  position: relative;
  transition: var(--transition);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
  background: var(--primary);
  border-color: var(--primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 12px;
  font-weight: bold;
}

/* 工具提示 */
.tooltip {
  position: relative;
  cursor: help;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--panel);
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  z-index: 1000;
}

.tooltip:hover::after {
  opacity: 1;
}

/* 文本统计 */
.text-stats {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
  padding: 8px 12px;
  background: var(--subtle);
  border-radius: 6px;
  border: 1px solid var(--border);
}

.text-stats span {
  display: flex;
  align-items: center;
  gap: 4px;
}

@media (max-width: 768px) {
  .field.colors {
    grid-template-columns: 1fr;
  }
  
  .text-stats {
    flex-direction: column;
    gap: 4px;
  }
}/**
 * 按钮组件样式
 */

/* 主要按钮 */
.primary-btn {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--primary);
  border-radius: 8px;
  color: #fff;
  background: var(--primary);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .01em;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.primary-btn:hover { 
  background: color-mix(in srgb, var(--primary) 90%, black);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.primary-btn:active { 
  background: color-mix(in srgb, var(--primary) 80%, black);
  transform: translateY(0);
}

.primary-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* 次级按钮 */
.secondary-btn {
  padding: 8px 12px;
  border: 2px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  background: var(--panel);
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
}

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

/* 图标按钮 */
.icon-btn {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

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

/* 链接按钮 */
.link-btn {
  background: none;
  border: none;
  color: var(--primary);
  text-decoration: underline;
  cursor: pointer;
  font-size: 12px;
  padding: 0;
  transition: var(--transition);
}

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

/* 预设按钮 */
.preset-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 8px;
}

.preset-btn {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

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

.preset-btn:active {
  transform: translateY(1px);
}

/* 格式化按钮 */
.format-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 12px;
  padding: 8px;
  background: var(--subtle);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.format-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

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

.format-btn:active {
  transform: translateY(0);
}

.format-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 4px 2px;
}

.color-picker-btn {
  position: relative;
  overflow: hidden;
}

.color-picker-btn input[type="color"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* 按钮行 */
.button-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.button-row .secondary-btn {
  flex: 1;
}

/* 动画增强 */
@media (prefers-reduced-motion: no-preference) {
  .format-btn {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  .format-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }
}

@media (max-width: 768px) {
  .preset-buttons {
    grid-template-columns: 1fr;
  }
  
  .button-row {
    flex-direction: column;
  }
}/**
 * 功能组件样式
 */

/* 预览工具栏 */
.preview-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--panel);
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.preview-toolbar h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.toolbar-right {
  display: flex;
  gap: 8px;
}

/* 导出控制 */
.export-controls {
  width: min(100%, var(--preview-width));
  margin: 0 auto;
  background: var(--panel);
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 12px;
  color: var(--text);
  font-size: 14px;
}

.export-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 12px;
}

.export-row label {
  color: var(--text);
  font-weight: 500;
}

.export-row input[type="range"] {
  flex: 1;
  min-width: 120px;
}

.export-row select {
  min-width: 140px;
}

.export-info {
  padding: 8px 12px;
  background: var(--subtle);
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

.export-info span {
  font-weight: 500;
}

/* 历史记录 */
.history-list {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
}

.history-item {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

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

.history-item:hover {
  background: var(--subtle);
}

.history-item-text {
  font-size: 13px;
  color: var(--text);
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.history-item-meta {
  font-size: 11px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.history-item-delete {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 11px;
}

.history-item-delete:hover {
  background: var(--danger);
  color: white;
}

.empty-history {
  padding: 20px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

/* 多页面控制 */
.multi-page-controls {
  margin-top: 12px;
  padding: 12px;
  background: var(--subtle);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.page-settings {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.page-navigation {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
}

#page-indicator {
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
}

/* 水印 */
.watermark {
  position: absolute;
  pointer-events: none;
  font-size: 14px;
  color: #888888;
  opacity: 0.5;
  z-index: 10;
  transition: var(--transition);
}

.watermark.bottom-right {
  bottom: 16px;
  right: 16px;
}

.watermark.bottom-left {
  bottom: 16px;
  left: 16px;
}

.watermark.top-right {
  top: 16px;
  right: 16px;
}

.watermark.top-left {
  top: 16px;
  left: 16px;
}

.watermark.center {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.watermark-options {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

/* 批量生成 */
.batch-progress {
  margin-top: 12px;
}

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

.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width 0.3s ease;
  width: 0%;
}

.progress-text {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

/* 性能监控 */
.performance-stats {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.stat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--subtle);
  border-radius: 6px;
  font-size: 13px;
}

.stat-label {
  color: var(--muted);
  font-weight: 500;
}

.stat-value {
  color: var(--text);
  font-weight: 600;
  font-family: var(--font-mono);
}

/* 小贴士 */
.tip {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  padding: 12px;
  background: var(--subtle);
  border-radius: 6px;
  border-left: 3px solid var(--primary);
}

@media (max-width: 768px) {
  .export-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .export-row label {
    font-weight: 600;
  }
}/**
 * 通知和状态样式
 */

/* 加载状态 */
.loading-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,.3);
  border-radius: 50%;
  border-top-color: currentColor;
  animation: spin 0.8s linear infinite;
  margin-right: 6px;
  vertical-align: middle;
  will-change: transform;
  transform: translateZ(0);
}

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

/* 应用加载状态 */
.app-loading {
  overflow: hidden;
}

.app-loading::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-loading::after {
  content: '加载中...';
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10000;
  color: var(--text);
  font-size: 18px;
  font-weight: 500;
}

/* 生成状态 */
.generating .preview-card {
  position: relative;
  overflow: hidden;
}

.generating .preview-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.1);
  z-index: 10;
  pointer-events: none;
}

.generating .preview-card::after {
  content: '正在生成图片...';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 11;
  background: var(--panel);
  color: var(--text);
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  font-weight: 500;
  pointer-events: none;
}

/* 通知系统 */
.notification-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  pointer-events: none;
}

.notification {
  background: var(--primary);
  color: white;
  padding: 12px 16px;
  margin-bottom: 8px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transform: translateX(100%);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: auto;
  max-width: 350px;
  word-wrap: break-word;
  position: relative;
}

.notification.show {
  transform: translateX(0);
}

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

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

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

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

.notification-content {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.notification-message {
  flex: 1;
  line-height: 1.4;
}

.notification-close {
  background: none;
  border: none;
  color: white;
  font-size: 18px;
  cursor: pointer;
  padding: 0;
  opacity: 0.8;
  transition: opacity 0.2s;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.notification-close:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.1);
}

/* 错误状态 */
.error-message {
  color: var(--danger);
  background: rgba(var(--danger), 0.1);
  padding: 12px;
  border-radius: 6px;
  border: 1px solid var(--danger);
  font-size: 14px;
  margin: 8px 0;
}

/* 成功状态 */
.success-message {
  color: var(--success);
  background: rgba(var(--success), 0.1);
  padding: 12px;
  border-radius: 6px;
  border: 1px solid var(--success);
  font-size: 14px;
  margin: 8px 0;
}

/* 警告状态 */
.warning-message {
  color: var(--warning);
  background: rgba(var(--warning), 0.1);
  padding: 12px;
  border-radius: 6px;
  border: 1px solid var(--warning);
  font-size: 14px;
  margin: 8px 0;
}

/* 动画效果 */
@media (prefers-reduced-motion: no-preference) {
  .watermark {
    animation: watermark-fade-in 0.3s ease-out;
  }
  
  @keyframes watermark-fade-in {
    from {
      opacity: 0;
      transform: scale(0.9);
    }
    to {
      opacity: 0.5;
      transform: scale(1);
    }
  }
  
  .notification {
    animation: notification-slide-in 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  @keyframes notification-slide-in {
    from {
      transform: translateX(100%);
      opacity: 0;
    }
    to {
      transform: translateX(0);
      opacity: 1;
    }
  }
}/**
 * 模板样式 - 所有图片生成模板
 */

/* 默认模板 */
.template-default {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  color: #1a202c;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
}

.template-default .content-wrap {
  padding: calc(var(--preview-padding) + 8px) var(--preview-padding);
  position: relative;
}

.template-default .content-wrap::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--preview-padding);
  right: var(--preview-padding);
  height: 2px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #667eea 100%);
  border-radius: 1px;
}

.template-default .content-text {
  max-width: 68ch;
  margin: 0 auto;
  line-height: 1.8;
  font-weight: 400;
  color: #2d3748;
  text-rendering: optimizeLegibility;
}

.template-default .content-text::first-line {
  font-weight: 600;
  font-size: 1.05em;
  letter-spacing: 0.01em;
}

/* 代码风格模板 */
.template-code {
  background: radial-gradient(ellipse at top left, #1a1f36 0%, #0d1117 60%),
              linear-gradient(135deg, #0d1117 0%, #161b22 100%);
  color: #f0f6fc;
  border: 1px solid #30363d;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
}

.template-code::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(56, 189, 248, 0.08) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.template-code .content-wrap {
  background: rgba(22, 27, 34, 0.8);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(48, 54, 61, 0.8);
  border-radius: 12px;
  position: relative;
  z-index: 2;
  padding-left: calc(var(--preview-padding) + 40px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.template-code .content-text {
  font-family: var(--font-mono);
  line-height: 1.8;
  font-size: 16px;
  font-weight: 500;
  color: #e6edf3;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
  letter-spacing: 0.02em;
}

/* 信纸风格模板 */
.template-letter {
  background: linear-gradient(135deg, #fefcf3 0%, #faf6ef 100%);
  color: #2d2d2d;
  position: relative;
  border: 1px solid #e8e0d3;
  box-shadow: 0 4px 12px rgba(139, 121, 94, 0.1), 0 1px 3px rgba(139, 121, 94, 0.05);
}

.template-letter::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, transparent 0px, transparent 28px, 
              rgba(139, 121, 94, 0.08) 28px, rgba(139, 121, 94, 0.08) 30px);
  pointer-events: none;
}

.template-letter .content-text {
  font-family: var(--font-serif);
  line-height: 1.9;
  font-size: 20px;
  font-weight: 400;
  color: #2d2d2d;
  text-indent: 2em;
  text-rendering: optimizeLegibility;
}

/* 霓虹渐变模板 */
.template-neon {
  background: radial-gradient(ellipse 800px 600px at 0% 0%, rgba(94,234,212,0.25) 0%, rgba(94,234,212,0) 50%),
              radial-gradient(ellipse 700px 500px at 100% 100%, rgba(167,139,250,0.2) 0%, rgba(167,139,250,0) 50%),
              linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #111827 100%);
  color: #f1f5f9;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 80px rgba(94, 234, 212, 0.05);
}

.template-neon::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(94, 234, 212, 0.08) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(167, 139, 250, 0.06) 0%, transparent 50%);
  pointer-events: none;
  animation: neonPulse 8s ease-in-out infinite;
}

@keyframes neonPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.template-neon .content-text {
  color: #f1f5f9;
  text-shadow: 0 0 20px rgba(94, 234, 212, 0.3), 0 1px 3px rgba(0, 0, 0, 0.5);
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* 杂志报头模板 */
.template-magazine {
  background: linear-gradient(135deg, #fefefe 0%, #f8f9fa 100%);
  color: #212529;
  border: 1px solid #dee2e6;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  position: relative;
}

.template-magazine::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #dc2626 0%, #ea580c 25%, #d97706 50%, #ca8a04 75%, #dc2626 100%);
}

.template-magazine .content-wrap::before {
  content: "FEATURED STORY";
  position: absolute;
  top: 12px;
  left: 20px;
  height: 28px;
  line-height: 28px;
  padding: 0 16px;
  background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
  color: #ffffff;
  font-weight: 800;
  letter-spacing: 0.12em;
  font-size: 11px;
  border-radius: 8px;
  z-index: 3;
}

/* 玻璃拟态模板 */
.template-glass {
  background: radial-gradient(800px 600px at 15% 20%, rgba(139, 92, 246, 0.3) 0%, transparent 50%),
              radial-gradient(600px 400px at 85% 80%, rgba(236, 72, 153, 0.25) 0%, transparent 50%),
              linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.template-glass .content-wrap {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.template-glass .content-text {
  color: #ffffff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 2px 8px rgba(0, 0, 0, 0.3);
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* 终端风格模板 */
/* 终端风格：完整的VSCode深色主题风格 */
.template-terminal {
  background: #1e1e1e;
  color: #cccccc;
  font-family: 'Cascadia Code', 'Fira Code', var(--font-mono);
  position: relative;
  overflow: hidden;
  border: 1px solid #3c3c3c;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

/* VSCode标题栏 */
.template-terminal::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 35px;
  background: linear-gradient(180deg, #2d2d30 0%, #252526 100%);
  border-bottom: 1px solid #3c3c3c;
  z-index: 1;
  box-shadow: inset 0 -1px 0 rgba(0,0,0,0.2);
}

/* 窗口控制按钮 */
.template-terminal::after {
  content: "";
  position: absolute;
  top: 8px;
  left: 12px;
  width: 12px;
  height: 12px;
  background: #ff5f56;
  border-radius: 50%;
  box-shadow: 
    20px 0 0 #ffbd2e,
    40px 0 0 #27ca3f;
  z-index: 2;
}

/* 编辑器区域 */
.template-terminal .content-wrap {
  padding-top: calc(var(--preview-padding) + 35px);
  padding-left: calc(var(--preview-padding) + 58px);
  padding-right: var(--preview-padding);
  padding-bottom: calc(var(--preview-padding) + 25px);
  position: relative;
  z-index: 3;
  background: #1e1e1e;
  min-height: 400px;
}

/* 标题栏文字 */
.template-terminal .content-wrap::before {
  content: "● document.md — Visual Studio Code";
  position: absolute;
  top: -35px;
  left: 50%;
  transform: translateX(-50%);
  color: #cccccc;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
  font-weight: 400;
  line-height: 35px;
  z-index: 2;
  opacity: 0.9;
}

/* 左侧行号区域 */
.template-terminal .content-wrap::after {
  content: "1\A2\A3\A4\A5\A6\A7\A8\A9\A10\A11\A12\A13\A14\A15";
  position: absolute;
  left: 0;
  top: var(--preview-padding);
  width: 50px;
  padding: 0 12px 0 16px;
  background: rgba(30, 30, 30, 0.8);
  border-right: 1px solid #3c3c3c;
  color: #858585;
  font-family: 'Cascadia Code', 'Fira Code', var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  text-align: right;
  white-space: pre;
  z-index: 1;
  user-select: none;
  box-shadow: inset -1px 0 0 rgba(255,255,255,0.04);
}

.template-terminal .content-text {
  font-family: 'Cascadia Code', 'Fira Code', 'SF Mono', Monaco, 'Inconsolata', 'Fira Mono', 'Droid Sans Mono', 'Source Code Pro', monospace;
  line-height: 1.6;
  font-size: 14px;
  font-weight: 400;
  color: #d4d4d4;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 3;
  white-space: pre-wrap;
  margin-left: -50px;
  padding-left: 12px;
  border-left: 1px solid transparent;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* VSCode 语法高亮样式模拟 */
.template-terminal .content-text::first-line {
  color: #569cd6; /* 蓝色 - 关键字 */
  font-weight: 500;
}

/* 品牌页脚 - VSCode状态栏风格 */
.template-terminal .brand-footer {
  background: #007acc;
  border-top: none;
  position: relative;
  z-index: 3;
  padding: 4px 16px;
  font-size: 12px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 状态栏左侧 */
.template-terminal .brand-footer::before {
  content: "●";
  color: white;
  font-family: var(--font-mono);
  font-weight: 400;
  margin-right: 8px;
  font-size: 8px;
  vertical-align: middle;
}

.template-terminal .brand-footer .brand-left {
  display: flex;
  align-items: center;
  gap: 12px;
  color: white;
  font-size: 11px;
}

.template-terminal .brand-name { 
  color: white;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 400;
  font-size: 11px;
}

.template-terminal .brand-right .brand-mark { 
  color: rgba(255, 255, 255, 0.8);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 11px;
  font-weight: 400;
}

/* 状态栏右侧信息 */
.template-terminal .brand-footer::after {
  content: "Ln 1, Col 1  •  Spaces: 2  •  UTF-8  •  Markdown";
  color: rgba(255, 255, 255, 0.8);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 11px;
  font-weight: 400;
}

/* VSCode 滚动条样式 */
.template-terminal .content-wrap::-webkit-scrollbar {
  width: 14px;
}

.template-terminal .content-wrap::-webkit-scrollbar-track {
  background: #1e1e1e;
}

.template-terminal .content-wrap::-webkit-scrollbar-thumb {
  background: #424242;
  border-radius: 7px;
  border: 2px solid #1e1e1e;
}

.template-terminal .content-wrap::-webkit-scrollbar-thumb:hover {
  background: #4e4e4e;
}

/* 选中文本样式 */
.template-terminal .content-text::selection {
  background: rgba(55, 148, 255, 0.3);
  color: inherit;
}

/* 微妙的网格线背景 */
.template-terminal {
  background-image: 
    linear-gradient(rgba(255,255,255,0.01) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.01) 1px, transparent 1px);
  background-size: 20px 20px;
  background-position: 0 35px;
}

/* 焦点状态 */
.template-terminal:hover {
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* 响应式优化 */
@media (max-width: 768px) {
  .template-terminal .content-text {
    margin-left: -35px;
    padding-left: 8px;
  }
  
  .template-terminal .content-wrap::after {
    width: 35px;
    padding: 0 8px 0 12px;
    font-size: 12px;
  }
  
  .template-terminal .content-wrap {
    padding-left: calc(var(--preview-padding) + 43px);
  }
}

/* 其他简化模板 */
.template-sticky {
  background: linear-gradient(135deg, #fffef7 0%, #fffaf0 100%);
  color: #44403c;
  border: 1px solid #f59e0b;
  transform: rotate(-0.5deg);
}

.template-retro {
  background: linear-gradient(135deg, #f4e4bc 0%, #e8d5b7 100%);
  color: #5d4037;
  font-family: var(--font-serif);
  border: 3px solid #8d6e63;
}

.template-nature {
  background: linear-gradient(135deg, #e8f5e8 0%, #f1f8e9 100%);
  color: #2e7d32;
  font-family: var(--font-serif);
  border: 2px solid #4caf50;
  border-radius: 20px;
}

.template-business {
  background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
  color: #263238;
  border: 1px solid #cfd8dc;
  position: relative;
}

.template-business::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, #1976d2, #1565c0);
}

.template-social {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 20px;
}

.template-modern {
  background: white;
  color: #1a202c;
  border-radius: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 10px 15px rgba(0, 0, 0, 0.1);
}

.template-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #f5576c);
}

/* 创意和赛博朋克模板有特殊动画 */
.template-creative {
  background: conic-gradient(from 45deg at 50% 50%, #ff6b6b22 0deg, #4ecdc422 72deg, 
              #45b7d122 144deg, #96ceb422 216deg, #ffeaa722 288deg, #ff6b6b22 360deg),
              linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  color: #2c3e50;
  border-radius: 25px;
  position: relative;
  overflow: hidden;
}

.template-creative::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: conic-gradient(from 45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #ffeaa7, #ff6b6b);
  border-radius: 25px;
  z-index: -1;
  animation: creative-rotate 6s linear infinite;
}

@keyframes creative-rotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.template-cyberpunk {
  background: linear-gradient(45deg, #0a0a0a 0%, #1a0033 50%, #000000 100%);
  color: #00ffff;
  font-family: var(--font-mono);
  border: 2px solid #ff00ff;
  box-shadow: 0 0 20px #ff00ff44, inset 0 0 20px #00ffff22;
  position: relative;
  overflow: hidden;
}

.template-cyberpunk::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, #00ffff44, transparent);
  animation: cyberpunk-scan 3s infinite;
}

@keyframes cyberpunk-scan {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* 模板切换动画 */
@media (prefers-reduced-motion: no-preference) {
  #capture-area {
    transition: var(--transition-slow);
  }
  
  .content-text {
    transition: all 0.3s ease-out;
  }
}