:root {
	/* 主题颜色 */
	--primary-color: #6366f1;
	--primary-light: #818cf8;
	--primary-dark: #4f46e5;
	--secondary-color: #10b981;
	--secondary-light: #34d399;
	--secondary-dark: #059669;
  
	/* 中性色 */
	--bg-color: #f8fafc;
	--card-bg: #ffffff;
	--card-bg-secondary: #f1f5f9;
	--card-bg-dark: #e2e8f0;
	
	/* 文本颜色 */
	--text-primary: #1e293b;
	--text-secondary: #475569;
	--text-muted: #94a3b8;
	--text-light: #ffffff;
	
	/* 功能色 */
	--success: #22c55e;
	--error: #ef4444;
	--warning: #f59e0b;
	--info: #3b82f6;
	
	/* 边框颜色 */
	--border-color: #e2e8f0;
	--border-color-focus: #cbd5e1;
	
	/* 阴影 */
	--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
	--shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
	--shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
	--shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
	
	/* 尺寸和间距 */
	--border-radius-sm: 0.375rem;
	--border-radius: 0.5rem;
	--border-radius-lg: 0.75rem;
	--border-radius-xl: 1rem;
	
	/* 过渡时间 */
	--transition-fast: 150ms;
	--transition-normal: 250ms;
	--transition-slow: 350ms;
	
	/* 布局 */
	--container-max-width: 1280px;
	
	/* 字体 */
	--font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 
				 sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
	--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  }
  
  /* 基础样式重置 */
  *, *::before, *::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
  }
  
  html {
	font-size: 16px;
	scroll-behavior: smooth;
  }
  
  body {
	font-family: var(--font-sans);
	background-color: var(--bg-color);
	color: var(--text-primary);
	line-height: 1.5;
	min-height: 100vh;
	width: 100%;
	padding: 0;
	margin: 0;
	overflow-x: hidden;
	position: relative;
  }
  
  img, svg {
	display: block;
	max-width: 100%;
  }
  
  a {
	color: var(--primary-color);
	text-decoration: none;
	transition: color var(--transition-fast) ease;
  }
  
  a:hover {
	color: var(--primary-dark);
  }
  
  /* Typography */
  h1, h2, h3, h4, h5, h6 {
	font-weight: 600;
	line-height: 1.25;
	margin-bottom: 0;
	color: var(--text-primary);
  }
  
  h1 {
	font-size: 1.25rem;
	letter-spacing: -0.015em;
  }
  
  h2 {
	font-size: 1.5rem;
	letter-spacing: -0.025em;
  }
  
  h3 {
	font-size: 1.25rem;
  }
  
  p {
	margin-bottom: 1rem;
  }
  
  /* Grid Layout */
  .app-container {
	display: grid;
	max-width: var(--container-max-width);
	margin: 0 auto;
	min-height: 100vh;
	grid-template-columns: 1fr;
	grid-template-rows: 1fr;
	grid-template-areas: "main";
  }
  
  .app-main {
	grid-area: main;
	display: grid;
	grid-template-columns: 1fr;
	grid-gap: 1.5rem;
	padding: 1.5rem;
	height: 100vh;
	overflow-y: auto;
  }
  
  @media (min-width: 1024px) {
	.app-main {
	  grid-template-columns: minmax(320px, 450px) 1fr;
	}
  }
  
  /* Cards */
  .card {
	background-color: var(--card-bg);
	border-radius: var(--border-radius);
	box-shadow: var(--shadow);
	overflow: hidden;
	transition: box-shadow var(--transition-normal) ease, transform var(--transition-normal) ease;
	display: flex;
	flex-direction: column;
	height: 100%;
  }
  
  .card:hover {
	box-shadow: var(--shadow-md);
  }
  
  .card-header {
	padding: 0;
	border-bottom: 1px solid var(--border-color);
	display: flex;
	justify-content: space-between;
	align-items: center;
	background-color: var(--card-bg-secondary);
  }
  
  .card-title {
	font-size: 1.25rem;
	font-weight: 600;
	margin: 0;
	display: flex;
	align-items: center;
	color: var(--primary-color);
	padding: 1rem;
  }
  
  .card-icon {
	width: 20px;
	height: 20px;
	margin-right: 0.5rem;
	color: var(--primary-color);
  }
  
  .card-body {
	padding: 1.5rem;
  }
  
  .card-footer {
	padding: 1.25rem;
	border-top: 1px solid var(--border-color);
	background-color: var(--card-bg-secondary);
  }
  
  /* Forms */
  .form-group {
	margin-bottom: 1.5rem;
  }
  
  .form-group:last-child {
	margin-bottom: 0;
  }
  
  .form-label {
	display: block;
	margin-bottom: 0.5rem;
	font-weight: 500;
	color: var(--text-secondary);
	font-size: 0.9375rem;
  }
  
  .form-control {
	display: block;
	width: 100%;
	padding: 0.75rem 1rem;
	font-size: 1rem;
	font-weight: 400;
	line-height: 1.5;
	color: var(--text-primary);
	background-color: var(--card-bg);
	background-clip: padding-box;
	border: 1px solid var(--border-color);
	border-radius: var(--border-radius-sm);
	transition: border-color var(--transition-fast) ease, box-shadow var(--transition-fast) ease;
  }
  
  .form-control:hover {
	border-color: var(--border-color-focus);
  }
  
  .form-control:focus {
	outline: 0;
	border-color: var(--primary-light);
	box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
  }
  
  .form-control[aria-invalid="true"] {
	border-color: var(--error);
  }
  
  .form-control[aria-invalid="true"]:focus {
	box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
  }
  
  .form-text {
	display: block;
	margin-top: 0.375rem;
	font-size: 0.875rem;
	color: var(--text-muted);
  }
  
  .form-grid {
	display: grid;
	grid-template-columns: 1fr;
	grid-gap: 1rem;
  }
  
  @media (min-width: 768px) {
	.form-grid {
	  grid-template-columns: 1fr 1fr;
	}
  }
  
  .error-message {
	display: none;
	color: var(--error);
	font-size: 0.875rem;
	margin-top: 0.375rem;
	animation: fadeIn 0.3s ease;
  }
  
  @keyframes fadeIn {
	from { opacity: 0; transform: translateY(-5px); }
	to { opacity: 1; transform: translateY(0); }
  }
  
  /* Buttons */
  .btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 0.75rem 1.5rem;
	font-size: 0.9375rem;
	font-weight: 500;
	line-height: 1.5;
	text-align: center;
	white-space: nowrap;
	vertical-align: middle;
	cursor: pointer;
	user-select: none;
	border: 0;
	border-radius: var(--border-radius-sm);
	transition: all var(--transition-fast) ease;
	position: relative;
	overflow: hidden;
  }
  
  .btn:focus {
	outline: 0;
  }
  
  .btn:active {
	transform: translateY(1px);
  }
  
  .btn-primary {
	background-color: var(--primary-color);
	color: var(--text-light);
  }
  
  .btn-primary:hover {
	background-color: var(--primary-dark);
  }
  
  .btn-primary:focus {
	box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
  }
  
  .btn-secondary {
	background-color: var(--secondary-color);
	color: var(--text-light);
  }
  
  .btn-secondary:hover {
	background-color: var(--secondary-dark);
  }
  
  .btn-secondary:focus {
	box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.3);
  }
  
  .btn-outline {
	background-color: transparent;
	color: var(--primary-color);
	border: 1px solid var(--primary-color);
  }
  
  .btn-outline:hover {
	background-color: var(--primary-color);
	color: var(--text-light);
  }
  
  .btn-neutral {
	background-color: var(--card-bg);
	border: 1px solid var(--border-color);
	color: var(--text-secondary);
	display: flex;
	align-items: center;
	gap: 0.375rem;
	font-weight: 500;
	font-size: 0.8125rem;
	padding: 0.5rem 0.875rem;
	border-radius: var(--border-radius-sm);
	transition: all var(--transition-fast) ease;
	box-shadow: var(--shadow-sm);
  }
  
  .btn-neutral:hover {
	background-color: var(--card-bg-dark);
	border-color: var(--border-color-focus);
  }
  
  .btn-sm {
	padding: 0.5rem 1rem;
	font-size: 0.875rem;
  }
  
  .btn-lg {
	padding: 0.875rem 1.75rem;
	font-size: 1rem;
  }
  
  .btn-block {
	display: block;
	width: 100%;
  }
  
  .btn-icon {
	margin-right: 0.5rem;
  }
  
  .btn-icon-only {
	padding: 0.625rem;
  }
  
  .btn-icon-only svg {
	margin: 0;
  }
  
  .btn-group {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
  }
  
  .btn:disabled,
  .btn.disabled {
	opacity: 0.65;
	pointer-events: none;
  }
  
  /* 可调整范围的滑块 */
  .range-slider {
	width: 100%;
	display: flex;
	flex-direction: column;
  }
  
  .range-slider-control {
	display: flex;
	align-items: center;
	gap: 1rem;
  }
  
  .range-slider input[type="range"] {
	flex: 1;
	-webkit-appearance: none;
	appearance: none;
	height: 6px;
	background: var(--border-color);
	border-radius: 3px;
	outline: none;
  }
  
  .range-slider input[type="range"]::-webkit-slider-thumb {
	-webkit-appearance: none;
	appearance: none;
	width: 18px;
	height: 18px;
	background: var(--primary-color);
	border-radius: 50%;
	cursor: pointer;
	transition: background var(--transition-fast) ease, transform var(--transition-fast) ease;
  }
  
  .range-slider input[type="range"]::-moz-range-thumb {
	width: 18px;
	height: 18px;
	background: var(--primary-color);
	border-radius: 50%;
	cursor: pointer;
	border: none;
	transition: background var(--transition-fast) ease, transform var(--transition-fast) ease;
  }
  
  .range-slider input[type="range"]:focus::-webkit-slider-thumb {
	transform: scale(1.1);
	background: var(--primary-dark);
  }
  
  .range-slider input[type="range"]:focus::-moz-range-thumb {
	transform: scale(1.1);
	background: var(--primary-dark);
  }
  
  .range-value {
	min-width: 60px;
	text-align: center;
	font-weight: 600;
	color: var(--text-primary);
	padding: 0.375rem 0.75rem;
	background: var(--card-bg-secondary);
	border-radius: var(--border-radius-sm);
	border: 1px solid var(--border-color);
  }
  
  /* 选项卡组件 */
  .tabs {
	display: flex;
	margin-bottom: 0;
  }
  
  .tab-item {
	display: inline-flex;
	align-items: center;
	padding: 0.5rem 1rem;
	border-bottom: 2px solid transparent;
	cursor: pointer;
	font-weight: 500;
	color: var(--text-secondary);
	transition: color var(--transition-fast) ease, border-color var(--transition-fast) ease;
	margin-bottom: -1px;
  }
  
  .tab-item:hover {
	color: var(--primary-color);
  }
  
  .tab-item.active {
	color: var(--primary-color);
	border-bottom-color: var(--primary-color);
  }
  
  .tab-item svg {
	width: 18px;
	height: 18px;
	margin-right: 0.5rem;
  }
  
  .tab-content {
	position: relative;
	height: 100%;
  }
  
  .tab-pane {
	display: none;
	animation: fadeIn 0.3s ease;
	height: 100%;
  }
  
  .tab-pane.active {
	display: block;
  }
  
  /* 预设选择组件 */
  .preset-selector {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
	gap: 0.75rem;
	margin-bottom: 1.5rem;
  }
  
  .preset-option {
	background-color: var(--card-bg);
	border: 1px solid var(--border-color);
	border-radius: var(--border-radius-sm);
	padding: 0.75rem;
	text-align: center;
	cursor: pointer;
	transition: all var(--transition-fast) ease;
  }
  
  .preset-option:hover {
	border-color: var(--primary-light);
	transform: translateY(-2px);
  }
  
  .preset-option.active {
	border-color: var(--primary-color);
	background-color: rgba(99, 102, 241, 0.05);
  }
  
  .preset-label {
	font-size: 0.875rem;
	font-weight: 500;
	margin-top: 0.5rem;
	color: var(--text-secondary);
  }
  
  /* 开关 */
  .switch {
	position: relative;
	display: inline-block;
	width: 50px;
	height: 26px;
  }
  
  .switch input {
	opacity: 0;
	width: 0;
	height: 0;
  }
  
  .switch-slider {
	position: absolute;
	cursor: pointer;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background-color: var(--border-color);
	transition: 0.4s;
	border-radius: 34px;
  }
  
  .switch-slider:before {
	position: absolute;
	content: "";
	height: 20px;
	width: 20px;
	left: 3px;
	bottom: 3px;
	background-color: white;
	transition: 0.4s;
	border-radius: 50%;
  }
  
  input:checked + .switch-slider {
	background-color: var(--primary-color);
  }
  
  input:focus + .switch-slider {
	box-shadow: 0 0 1px var(--primary-color);
  }
  
  input:checked + .switch-slider:before {
	transform: translateX(24px);
  }
  
  /* 分隔符 */
  .divider {
	height: 1px;
	background-color: var(--border-color);
	margin: 1.5rem 0;
  }
  
  .divider-text {
	display: flex;
	align-items: center;
	margin: 1.5rem 0;
  }
  
  .divider-text:before,
  .divider-text:after {
	content: "";
	flex: 1;
	height: 1px;
	background-color: var(--border-color);
  }
  
  .divider-text:before {
	margin-right: 0.75rem;
  }
  
  .divider-text:after {
	margin-left: 0.75rem;
  }
  
  /* 徽章 */
  .badge {
	display: inline-flex;
	align-items: center;
	padding: 0.25rem 0.5rem;
	font-size: 0.75rem;
	font-weight: 600;
	line-height: 1;
	color: var(--text-light);
	text-align: center;
	white-space: nowrap;
	vertical-align: baseline;
	border-radius: var(--border-radius-sm);
  }
  
  .badge-primary {
	background-color: var(--primary-color);
  }
  
  .badge-secondary {
	background-color: var(--secondary-color);
  }
  
  .badge-success {
	background-color: var(--success);
  }
  
  .badge-danger {
	background-color: var(--error);
  }
  
  .badge-warning {
	background-color: var(--warning);
  }
  
  .badge-info {
	background-color: var(--info);
  }
  
  /* 工具提示 */
  .tooltip {
	position: relative;
	display: inline-block;
  }
  
  .tooltip-text {
	visibility: hidden;
	width: 200px;
	background-color: var(--text-primary);
	color: var(--card-bg);
	text-align: center;
	padding: 0.5rem;
	border-radius: var(--border-radius-sm);
	position: absolute;
	z-index: 1;
	bottom: 125%;
	left: 50%;
	transform: translateX(-50%);
	opacity: 0;
	transition: opacity var(--transition-fast) ease;
	font-size: 0.875rem;
	box-shadow: var(--shadow);
  }
  
  .tooltip-text::after {
	content: "";
	position: absolute;
	top: 100%;
	left: 50%;
	margin-left: -5px;
	border-width: 5px;
	border-style: solid;
	border-color: var(--text-primary) transparent transparent transparent;
  }
  
  .tooltip:hover .tooltip-text {
	visibility: visible;
	opacity: 1;
  }
  
  /* Toast 通知 */
  .toast-container {
	position: fixed;
	bottom: 2rem;
	right: 2rem;
	display: flex;
	flex-direction: column-reverse;
	gap: 0.75rem;
	z-index: 1050;
  }
  
  .toast {
	display: flex;
	align-items: center;
	max-width: 350px;
	padding: 1rem;
	background-color: var(--card-bg);
	color: var(--text-primary);
	border-left: 4px solid var(--primary-color);
	border-radius: var(--border-radius-sm);
	box-shadow: var(--shadow-md);
	transform: translateX(120%);
	opacity: 0;
	transition: transform var(--transition-normal) ease, opacity var(--transition-normal) ease;
  }
  
  .toast.show {
	transform: translateX(0);
	opacity: 1;
  }
  
  .toast.success {
	border-left-color: var(--success);
  }
  
  .toast.error {
	border-left-color: var(--error);
  }
  
  .toast.warning {
	border-left-color: var(--warning);
  }
  
  .toast-icon {
	margin-right: 0.75rem;
	flex-shrink: 0;
  }
  
  .toast-content {
	flex: 1;
  }
  
  .toast-title {
	font-weight: 600;
	margin-bottom: 0.25rem;
  }
  
  .toast-message {
	font-size: 0.875rem;
	color: var(--text-secondary);
  }
  
  .toast-close {
	background: none;
	border: none;
	cursor: pointer;
	color: var(--text-muted);
	padding: 0.25rem;
	margin-left: 0.5rem;
  }
  
  .toast-close:hover {
	color: var(--text-primary);
  }
  
  /* 高级选项折叠面板 */
  .collapse-container {
	margin-bottom: 1.5rem;
  }
  
  .collapse-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0.75rem 1rem;
	background-color: var(--card-bg-secondary);
	border: 1px solid var(--border-color);
	border-radius: var(--border-radius-sm);
	cursor: pointer;
	transition: background-color var(--transition-fast) ease;
  }
  
  .collapse-header:hover {
	background-color: var(--border-color);
  }
  
  .collapse-title {
	font-weight: 500;
	margin: 0;
	display: flex;
	align-items: center;
	color: var(--text-secondary);
  }
  
  .collapse-icon {
	transition: transform var(--transition-fast) ease;
  }
  
  .collapse-open .collapse-icon {
	transform: rotate(180deg);
  }
  
  .collapse-content {
	max-height: 0;
	overflow: hidden;
	transition: max-height var(--transition-normal) ease;
	border: 1px solid var(--border-color);
	border-top: none;
	border-bottom-left-radius: var(--border-radius-sm);
	border-bottom-right-radius: var(--border-radius-sm);
  }
  
  .collapse-open .collapse-content {
	max-height: 1000px; /* 足够大的值以容纳内容 */
  }
  
  .collapse-body {
	padding: 1.25rem 1rem;
  }
  
  /* 代码显示区域 */
  .code-content {
	padding: 1.25rem;
	overflow-x: auto;
	font-family: var(--font-mono);
	font-size: 0.875rem;
	line-height: 1.7;
	white-space: pre-wrap;
	word-break: break-word;
	background-color: #1e293b;
	color: #e2e8f0;
	min-height: 250px;
	max-height: 600px;
	height: calc(100vh - 300px);
  }
  
  /* 预览区域样式 */
  #previewPane {
	height: calc(100vh - 300px);
	min-height: 250px;
	max-height: 600px;
	background-color: var(--card-bg-dark);
	overflow: hidden;
	display: flex;
	flex-direction: column;
  }
  
  .preview-toolbar {
	padding: 0.75rem 1rem;
	background-color: var(--card-bg-secondary);
	border-bottom: 1px solid var(--border-color);
	display: flex;
	justify-content: space-between;
	align-items: center;
  }
  
  .preview-controls {
	display: flex;
	gap: 1.5rem;
	align-items: center;
	flex-wrap: wrap;
  }
  
  .preview-aspect-ratios {
	display: flex;
	align-items: center;
	gap: 0.5rem;
  }
  
  .control-label {
	font-size: 0.875rem;
	color: var(--text-secondary);
	font-weight: 500;
  }
  
  .button-group {
	display: flex;
	border-radius: var(--border-radius-sm);
	overflow: hidden;
	background-color: var(--card-bg);
	border: 1px solid var(--border-color);
  }
  
  .preview-ratio-btn {
	background: none;
	border: none;
	padding: 0.375rem 0.625rem;
	font-size: 0.75rem;
	cursor: pointer;
	color: var(--text-secondary);
	transition: all var(--transition-fast) ease;
	font-weight: 500;
  }
  
  .preview-ratio-btn:not(:last-child) {
	border-right: 1px solid var(--border-color);
  }
  
  .preview-ratio-btn:hover {
	background-color: rgba(0, 0, 0, 0.05);
  }
  
  .preview-ratio-btn.active {
	background-color: var(--primary-color);
	color: white;
  }
  
  .preview-scale {
	display: flex;
	align-items: center;
	gap: 0.5rem;
  }
  
  .preview-scale input[type="range"] {
	width: 100px;
	-webkit-appearance: none;
	appearance: none;
	height: 6px;
	background: var(--border-color);
	border-radius: 3px;
	outline: none;
  }
  
  .preview-scale input[type="range"]::-webkit-slider-thumb {
	-webkit-appearance: none;
	appearance: none;
	width: 14px;
	height: 14px;
	background: var(--primary-color);
	border-radius: 50%;
	cursor: pointer;
	transition: background var(--transition-fast) ease, transform var(--transition-fast) ease;
  }
  
  .preview-scale input[type="range"]::-moz-range-thumb {
	width: 14px;
	height: 14px;
	background: var(--primary-color);
	border-radius: 50%;
	cursor: pointer;
	border: none;
	transition: background var(--transition-fast) ease, transform var(--transition-fast) ease;
  }
  
  #previewScaleValue {
	font-size: 0.75rem;
	font-weight: 600;
	min-width: 32px;
	color: var(--text-primary);
	background-color: var(--card-bg);
	padding: 0.25rem 0.375rem;
	border-radius: var(--border-radius-sm);
	text-align: center;
	border: 1px solid var(--border-color);
  }
  
  .preview-content {
	position: relative;
	background-color: var(--card-bg-dark);
	width: 100%;
	height: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	overflow: auto;
	flex: 1;
  }
  
  .preview-frame-container {
	position: relative;
	transition: all var(--transition-normal) ease;
	background-color: white;
	border: 1px solid var(--border-color);
	max-width: 100%;
	max-height: 100%;
	overflow: hidden;
  }
  
  .preview-frame-container.ratio-16-9 {
	width: 640px;
	height: 360px;
  }
  
  .preview-frame-container.ratio-4-3 {
	width: 640px;
	height: 480px;
  }
  
  .preview-frame-container.ratio-1-1 {
	width: 480px;
	height: 480px;
  }
  
  .preview-frame-container.ratio-9-16 {
	width: 360px;
	height: 640px;
  }
  
  .preview-content iframe {
	width: 100%;
	height: 100%;
	border: none;
	background-color: white;
	transform-origin: 0 0;
  }
  
  .loading {
	display: none;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	z-index: 10;
  }
  
  .loading-spinner {
	width: 48px;
	height: 48px;
	border: 5px solid rgba(99, 102, 241, 0.2);
	border-radius: 50%;
	border-top-color: var(--primary-color);
	animation: spin 1s linear infinite;
  }
  
  @keyframes spin {
	0% { transform: rotate(0deg); }
	100% { transform: rotate(360deg); }
  }
  
  /* 卡片按钮样式 */
  .card-button {
	background-color: var(--card-bg);
	border: 1px solid var(--border-color);
	color: var(--text-secondary);
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0.5rem 0.875rem;
	border-radius: var(--border-radius-sm);
	transition: all var(--transition-fast) ease;
	margin-right: 0.25rem;
	position: relative;
	font-size: 0.8125rem;
	gap: 0.375rem;
	font-weight: 500;
	box-shadow: var(--shadow-sm);
  }
  
  .card-button:hover {
	background-color: var(--card-bg-dark);
	border-color: var(--border-color-focus);
	color: var(--primary-color);
  }
  
  .card-button.success {
	background-color: var(--success);
	color: white;
	border-color: var(--success);
  }
  
  .card-button.processing {
	background-color: var(--primary-color);
	color: white;
	border-color: var(--primary-color);
  }
  
  /* 媒体查询 - 响应式调整 */
  @media (max-width: 1023px) {
	.app-main {
	  padding: 1.5rem;
	}
	
	.card-body {
	  padding: 1.25rem;
	}
	
	.form-grid {
	  grid-template-columns: 1fr;
	}
	
	.preset-selector {
	  grid-template-columns: repeat(2, 1fr);
	}
	
	.btn-group {
	  flex-direction: column;
	}
	
	.btn-group .btn {
	  width: 100%;
	}
  
	.preview-controls {
	  flex-direction: column;
	  align-items: flex-start;
	  gap: 0.5rem;
	}
  }
  
  @media (max-width: 640px) {
	.app-main {
	  padding: 1rem;
	  grid-gap: 1.5rem;
	}
	
	.card-header, .card-body, .card-footer {
	  padding: 1rem;
	}
	
	h1 {
	  font-size: 1.75rem;
	}
	
	.app-title {
	  font-size: 1.125rem;
	}
	
	.toast-container {
	  right: 1rem;
	  bottom: 1rem;
	  left: 1rem;
	}
	
	.toast {
	  max-width: 100%;
	}
  
	.preview-toolbar {
	  flex-direction: column;
	  gap: 0.75rem;
	  align-items: flex-start;
	}
  
	.preview-toolbar .btn-neutral {
	  align-self: flex-start;
	}
  }
  
  /* 滚动条美化 */
  ::-webkit-scrollbar {
	width: 10px;
	height: 10px;
  }
  
  ::-webkit-scrollbar-track {
	background: var(--card-bg-secondary);
	border-radius: 5px;
  }
  
  ::-webkit-scrollbar-thumb {
	background: var(--border-color-focus);
	border-radius: 5px;
  }
  
  ::-webkit-scrollbar-thumb:hover {
	background: var(--text-muted);
  }
  
  /* 辅助类 */
  .hidden {
	display: none !important;
  }
  
  .visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border-width: 0;
  }
  
  .text-center {
	text-align: center;
  }
  
  .mt-0 { margin-top: 0; }
  .mb-0 { margin-bottom: 0; }
  .ml-0 { margin-left: 0; }
  .mr-0 { margin-right: 0; }
  
  .mt-1 { margin-top: 0.375rem; }
  .mb-1 { margin-bottom: 0.375rem; }
  .ml-1 { margin-left: 0.375rem; }
  .mr-1 { margin-right: 0.375rem; }
  
  .mt-2 { margin-top: 0.625rem; }
  .mb-2 { margin-bottom: 0.625rem; }
  .ml-2 { margin-left: 0.625rem; }
  .mr-2 { margin-right: 0.625rem; }
  
  .mt-3 { margin-top: 1rem; }
  .mb-3 { margin-bottom: 1rem; }
  .ml-3 { margin-left: 1rem; }
  .mr-3 { margin-right: 1rem; }
  
  .mt-4 { margin-top: 1.5rem; }
  .mb-4 { margin-bottom: 1.5rem; }
  .ml-4 { margin-left: 1.5rem; }
  .mr-4 { margin-right: 1.5rem; }
  
  .mt-5 { margin-top: 2.5rem; }
  .mb-5 { margin-bottom: 2.5rem; }
  .ml-5 { margin-left: 2.5rem; }
  .mr-5 { margin-right: 2.5rem; }
  
  .p-0 { padding: 0; }
  .p-1 { padding: 0.375rem; }
  .p-2 { padding: 0.625rem; }
  .p-3 { padding: 1rem; }
  .p-4 { padding: 1.5rem; }
  .p-5 { padding: 2.5rem; }
  
  .w-100 { width: 100%; }
  .h-100 { height: 100%; }
  
  /* 动画 */
  @keyframes pulse {
	0%, 100% { opacity: 1; }
	50% { opacity: 0.5; }
  }
  
  @keyframes slideInRight {
	from { transform: translateX(100%); opacity: 0; }
	to { transform: translateX(0); opacity: 1; }
  }
  
  @keyframes slideInUp {
	from { transform: translateY(100%); opacity: 0; }
	to { transform: translateY(0); opacity: 1; }
  }