:root {
  /* GitHub 风格色板（浅色主题） */
  --bg: #f6f8fa;              /* 页面背景 */
  --panel: #ffffff;           /* 面板/卡片 */
  --subtle: #f6f8fa;          /* 微妙背景 */
  --border: #d0d7de;          /* 边框色 */
  --muted: #57606a;           /* 说明文字 */
  --text: #1f2328;            /* 主文本 */
  --primary: #0969da;         /* 交互主色（链接蓝） */
  --success: #1a7f37;         /* 成功色 */
  --warning: #bf8700;         /* 警告色 */
  --danger: #d1242f;          /* 危险色 */
  --ring: 0 0 0 3px rgba(9, 105, 218, .25);

  --card-radius: 12px;        /* GitHub 更克制的圆角 */
  --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);

  --preview-width: 960px;     /* 导出卡片宽度 */
  --preview-padding: 32px;    /* 更紧凑的内边距 */
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* 字体堆栈 */
  --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;
}

/* 暗色主题支持 */
@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;
  }
}

/* 基础布局 */
* { box-sizing: border-box; }
html, body { height: 100%; }
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;
}

.container {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 24px;
  padding: 24px;
  align-items: start;
  min-height: 100vh;
}

/* 加载动画 */
.loading {
  opacity: 0.6;
  pointer-events: none;
  transition: var(--transition);
}

/* 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;
}

/* 左侧面板 */
.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;
}

.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;
}

.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;
}

.text-input {
  width: 100%;
  height: 200px;
  resize: vertical;
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  line-height: 1.6;
  font-size: 14px;
  font-family: var(--font-sans);
  outline: none;
  transition: var(--transition);
  background: var(--panel);
  color: var(--text);
}
.text-input:focus { 
  border-color: var(--primary); 
  box-shadow: var(--ring); 
}

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

select, input[type="text"], input[type="file"], input[type="range"] {
  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);
}

select, input[type="text"], input[type="file"] {
  line-height: 1.5;
}

select:hover, input[type="text"]:hover, input[type="file"]:hover, input[type="range"]:hover {
  border-color: var(--primary);
}

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

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;
}

/* Range输入样式优化 */
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);
}

input[type="range"]::-moz-range-track {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  border: none;
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--panel);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}

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;
}

.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);
}

.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);
}

/* 右侧预览 */
.preview-area {
  display: grid;
  gap: 16px;
}

.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;
}

.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);
}

.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;
}

/* 捕获区域（导出目标） */
#capture-area {
  width: var(--preview-width);
  min-height: 540px;
  margin: 0 auto;
  background: #0d1117;
  color: var(--text);
  border-radius: 12px;
  overflow: hidden;
  display: grid;
  grid-template-rows: 1fr auto;
  border: 1px solid var(--border);
  -webkit-font-smoothing: antialiased;   /* 导出和预览一致的清晰度 */
  -moz-osx-font-smoothing: grayscale;
}
#capture-area .content-text {
  max-width: 72ch;   /* GitHub 文档最佳行长 */
  margin: 0 auto;
}

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

.content-text {
  white-space: pre-wrap;   /* 保留换行 */
  word-break: break-word;
  font-size: 20px;
  line-height: 1.7;
}

/* 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; /* 无Logo时隐藏 */
}

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

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

/* 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;
}

/* 模板样式 */
/* 默认：简洁文档风格，增强版式美感 */
.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;
  -webkit-font-smoothing: antialiased;
}

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

.template-default .brand-footer {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  border-top: 1px solid #e2e8f0;
  position: relative;
}

.template-default .brand-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(102, 126, 234, 0.3) 50%, 
    transparent 100%);
}

.template-default .brand-name { 
  color: #4a5568;
  font-weight: 700;
}

.template-default .brand-right .brand-mark { 
  color: #718096;
  font-weight: 500;
}
/* 删除 .template-blackgold 兼容规则（模板已下线） */

/* 代码风：深色背景 + 等宽字体 + 代码块感 + 行号装饰 */
.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-wrap::before {
  content: "";
  position: absolute;
  left: var(--preview-padding);
  top: var(--preview-padding);
  bottom: var(--preview-padding);
  width: 28px;
  background: 
    linear-gradient(180deg, 
      rgba(56, 189, 248, 0.1) 0%, 
      rgba(236, 72, 153, 0.08) 100%);
  border-right: 2px solid rgba(48, 54, 61, 0.8);
  border-radius: 8px 0 0 8px;
  box-shadow: inset -1px 0 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;
  position: relative;
  z-index: 3;
}

.template-code .brand-footer {
  background: rgba(22, 27, 34, 0.9);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(48, 54, 61, 0.8);
  position: relative;
  z-index: 2;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.template-code .brand-name { 
  color: #58a6ff;
  font-weight: 700;
  text-shadow: 0 0 8px rgba(88, 166, 255, 0.3);
}

.template-code .brand-right .brand-mark { 
  color: #8b949e;
  font-weight: 500;
}

/* 信纸风：米色背景 + 衬线字体 + 纸张边框 + 首行缩进 */
.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-wrap {
  background: rgba(255, 255, 255, 0.3);
  padding-left: calc(var(--preview-padding) + 12px);
  padding-right: calc(var(--preview-padding) + 12px);
  border: 1px solid rgba(139, 121, 94, 0.1);
  border-radius: 12px;
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.6),
    0 2px 8px rgba(139, 121, 94, 0.08);
  position: relative;
  z-index: 2;
}

.template-letter .content-wrap::before {
  content: "";
  position: absolute;
  left: calc(var(--preview-padding) + 6px);
  top: var(--preview-padding);
  bottom: var(--preview-padding);
  width: 2px;
  background: linear-gradient(180deg, 
    rgba(220, 38, 127, 0.3) 0%, 
    rgba(220, 38, 127, 0.1) 100%);
  border-radius: 1px;
}

.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;
  position: relative;
  z-index: 3;
}

.template-letter .content-text::first-line {
  font-weight: 500;
  letter-spacing: 0.02em;
}

.template-letter .brand-footer {
  background: rgba(250, 246, 239, 0.8);
  border-top: 1px solid rgba(139, 121, 94, 0.15);
  position: relative;
  z-index: 2;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.template-letter .brand-name { 
  color: #5d4037;
  font-weight: 700;
}

.template-letter .brand-right .brand-mark { 
  color: #8d6e63;
  font-weight: 500;
}

/* ===== 新增模板 ===== */
/* 极简黑金模板已下线，删除相关样式占位 */

/* 霓虹渐变：更清晰的霓虹边与渐变框体 */
.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-wrap {
  position: relative;
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.15);
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(12px);
  box-shadow:
    0 0 0 1px rgba(94, 234, 212, 0.1) inset,
    0 0 0 2px rgba(167, 139, 250, 0.05) inset,
    0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 2;
}

.template-neon .content-text {
  font-family: var(--font-sans);
  line-height: 1.85;
  font-size: 19px;
  font-weight: 500;
  color: #f1f5f9;
  text-shadow: 
    0 0 20px rgba(94, 234, 212, 0.3),
    0 1px 3px rgba(0, 0, 0, 0.5);
  position: relative;
  z-index: 3;
  letter-spacing: 0.01em;
}

.template-neon .brand-footer {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(148, 163, 184, 0.15);
  position: relative;
  z-index: 2;
  box-shadow: 
    inset 0 1px 0 rgba(94, 234, 212, 0.1),
    0 0 20px rgba(0, 0, 0, 0.2);
}

.template-neon .brand-name { 
  color: #5eead4;
  font-weight: 700;
  text-shadow: 0 0 12px rgba(94, 234, 212, 0.4);
}

.template-neon .brand-right .brand-mark { 
  color: #a78bfa;
  font-weight: 500;
  text-shadow: 0 0 8px rgba(167, 139, 250, 0.3);
}

/* 杂志报头：留出大标题区、正文窄栏、分割线与引导符号 */
.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 {
  padding-top: 48px;
  position: relative;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    0 2px 8px rgba(0, 0, 0, 0.04);
}

.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;
  box-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.template-magazine .content-wrap::after {
  content: "";
  position: absolute;
  top: 12px;
  right: 20px;
  width: 60px;
  height: 28px;
  background: 
    repeating-linear-gradient(
      45deg,
      #dc2626 0px,
      #dc2626 4px,
      transparent 4px,
      transparent 8px
    );
  border-radius: 4px;
  opacity: 0.3;
}

.template-magazine .content-text {
  max-width: 58ch;
  margin: 0 auto;
  line-height: 1.9;
  font-size: 19px;
  font-weight: 400;
  color: #374151;
  text-rendering: optimizeLegibility;
}

.template-magazine .content-text::first-line {
  font-weight: 700;
  font-size: 1.1em;
  letter-spacing: 0.02em;
  color: #1f2937;
}

.template-magazine .brand-footer {
  background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
  border-top: 1px solid #d1d5db;
  position: relative;
}

.template-magazine .brand-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    #dc2626 50%, 
    transparent 100%);
}

.template-magazine .brand-name { 
  color: #1f2937;
  font-weight: 800;
}

.template-magazine .brand-right .brand-mark { 
  color: #6b7280;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-size: 11px;
}

/* 卡片便签：带"钉子"与阴影的便签效果，圆角卡片风 */
.template-sticky {
  background: 
    linear-gradient(135deg, #fffef7 0%, #fffaf0 100%);
  color: #44403c;
  border: 1px solid #f59e0b;
  box-shadow: 
    0 8px 25px rgba(245, 158, 11, 0.15),
    0 3px 10px rgba(180, 83, 9, 0.1);
  position: relative;
  transform: rotate(-0.5deg);
}

.template-sticky::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    repeating-linear-gradient(
      0deg,
      transparent 0px,
      transparent 32px,
      rgba(245, 158, 11, 0.08) 32px,
      rgba(245, 158, 11, 0.08) 34px
    );
  pointer-events: none;
}

.template-sticky .content-wrap {
  background: rgba(255, 255, 255, 0.4);
  padding-left: calc(var(--preview-padding) + 16px);
  padding-right: calc(var(--preview-padding) + 16px);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 16px;
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.7),
    0 2px 12px rgba(245, 158, 11, 0.1);
  position: relative;
  z-index: 2;
}

.template-sticky .content-wrap::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 18px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: 
    radial-gradient(circle at 30% 30%, 
      #ffffff 0%, 
      #fef3c7 30%, 
      #f59e0b 70%, 
      #d97706 100%);
  box-shadow: 
    0 2px 8px rgba(245, 158, 11, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.6),
    inset 0 -1px 2px rgba(217, 119, 6, 0.3);
  border: 1px solid rgba(217, 119, 6, 0.2);
}

.template-sticky .content-wrap::after {
  content: "";
  position: absolute;
  left: 28px;
  top: 18px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: 
    linear-gradient(135deg, 
      rgba(255, 255, 255, 0.8) 0%, 
      rgba(255, 255, 255, 0.3) 40%, 
      transparent 70%);
  pointer-events: none;
}

.template-sticky .content-text {
  font-family: var(--font-serif);
  line-height: 1.95;
  font-size: 19px;
  font-weight: 400;
  color: #57534e;
  text-rendering: optimizeLegibility;
  margin-top: 8px;
}

.template-sticky .content-text::first-line {
  font-weight: 600;
  color: #44403c;
}

.template-sticky .brand-footer {
  background: 
    linear-gradient(135deg, #fef7ed 0%, #fff7ed 100%);
  border-top: 1px solid #fed7aa;
  position: relative;
  z-index: 2;
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    0 -1px 0 rgba(245, 158, 11, 0.1);
}

.template-sticky .brand-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 16px;
  right: 16px;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(245, 158, 11, 0.4) 50%, 
    transparent 100%);
}

.template-sticky .brand-name { 
  color: #92400e;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(245, 158, 11, 0.1);
}

.template-sticky .brand-right .brand-mark { 
  color: #a16207;
  font-weight: 600;
}

/* 玻璃拟态：现代玻璃效果 + 模糊背景 */
.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::before {
  content: "";
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 30% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 70% 80%, rgba(236, 72, 153, 0.1) 0%, transparent 40%);
  pointer-events: none;
}

.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),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  z-index: 2;
}

.template-glass .content-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1) 0%, 
    rgba(255, 255, 255, 0.05) 50%, 
    rgba(255, 255, 255, 0.02) 100%);
  border-radius: inherit;
  pointer-events: none;
}

.template-glass .content-text {
  font-family: var(--font-sans);
  line-height: 1.8;
  font-size: 21px;
  font-weight: 500;
  color: #ffffff;
  text-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.5),
    0 2px 8px rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 3;
  letter-spacing: 0.01em;
}

.template-glass .brand-footer {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  position: relative;
  z-index: 2;
}

.template-glass .brand-name { 
  color: #ffffff;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.template-glass .brand-right .brand-mark { 
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* 终端风格：VSCode 深色主题风格 */
.template-terminal {
  background: #1e1e1e;
  color: #d4d4d4;
  font-family: 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);
}

.template-terminal::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 35px;
  background: #2d2d30;
  border-bottom: 1px solid #3c3c3c;
  z-index: 1;
}

.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;
}

.template-terminal .content-wrap {
  padding-top: calc(var(--preview-padding) + 35px);
  padding-left: calc(var(--preview-padding) + 8px);
  padding-right: var(--preview-padding);
  padding-bottom: var(--preview-padding);
  position: relative;
  z-index: 3;
  background: rgba(30, 30, 30, 0.95);
}

.template-terminal .content-wrap::before {
  content: "terminal";
  position: absolute;
  top: -35px;
  left: 50%;
  transform: translateX(-50%);
  color: #cccccc;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 400;
  line-height: 35px;
  z-index: 2;
}

.template-terminal .content-wrap::after {
  content: "PS C:\\Users\\Developer\\Projects> # 以下是文档内容";
  display: block;
  color: #569cd6;
  font-family: var(--font-mono);
  font-size: 14px;
  margin-bottom: 16px;
  font-weight: 400;
  line-height: 1.4;
}

.template-terminal .content-text {
  font-family: 'Cascadia Code', 'Fira Code', var(--font-mono);
  line-height: 1.6;
  font-size: 15px;
  font-weight: 400;
  color: #d4d4d4;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 3;
  white-space: pre-wrap;
  margin-left: 0;
}

/* VSCode 语法高亮样式 */
.template-terminal .content-text::before {
  content: "```markdown";
  display: block;
  color: #608b4e;
  font-size: 13px;
  margin-bottom: 8px;
  opacity: 0.8;
}

.template-terminal .content-text::after {
  content: "\A```";
  white-space: pre;
  color: #608b4e;
  font-size: 13px;
  margin-top: 8px;
  opacity: 0.8;
}

.template-terminal .brand-footer {
  background: #252526;
  border-top: 1px solid #3c3c3c;
  position: relative;
  z-index: 3;
  padding: 8px 16px;
  font-size: 12px;
}

.template-terminal .brand-footer::before {
  content: "●";
  color: #007acc;
  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: 8px;
}

.template-terminal .brand-name { 
  color: #cccccc;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 12px;
}

.template-terminal .brand-right .brand-mark { 
  color: #858585;
  font-family: var(--font-mono);
  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;
}

/* 添加微妙的扫描线效果 */
.template-terminal .content-text {
  position: relative;
}

.template-terminal .content-text::before {
  animation: none;
}

/* 光标闪烁效果 */
@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.template-terminal .content-wrap::after {
  position: relative;
}

.template-terminal .content-wrap::after::after {
  content: "_";
  color: #d4d4d4;
  animation: blink 1s infinite;
  margin-left: 4px;
}

/* 生成状态 */
.generating {
  cursor: wait;
}

.generating * {
  pointer-events: none;
}

.generating .primary-btn,
.generating .secondary-btn {
  pointer-events: auto;
}

/* 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;
}

/* 响应式 */
@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 {
    padding: 16px;
    gap: 16px;
  }
  
  .sidebar {
    padding: 16px;
  }
  
  .field.colors {
    grid-template-columns: 1fr;
  }
  
  .export-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .export-row label {
    font-weight: 600;
  }
}