/**
 * YFQ Design System v2
 * 明亮 · 毛玻璃 · 无渐变 · 精致动效
 */

/* ===== 基础重置 ===== */
*, *::before, *::after {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	-webkit-tap-highlight-color: transparent;
}

:root {
	/* 主色 */
	--primary: #E8532D;
	--primary-hover: #D14928;
	--primary-soft: rgba(232, 83, 45, 0.08);
	--primary-medium: rgba(232, 83, 45, 0.15);

	/* 背景 */
	--bg-body: #F5F5F7;
	--bg-surface: rgba(255, 255, 255, 0.72);
	--bg-card: rgba(255, 255, 255, 0.85);
	--bg-solid: #FFFFFF;
	--bg-hover: rgba(0, 0, 0, 0.03);
	--bg-active: rgba(232, 83, 45, 0.06);

	/* 文字 */
	--text-primary: #1D1D1F;
	--text-secondary: #86868B;
	--text-tertiary: #A1A1A6;
	--text-inverse: #FFFFFF;

	/* 边框 */
	--border-light: rgba(0, 0, 0, 0.06);
	--border-medium: rgba(0, 0, 0, 0.1);
	--border-glass: rgba(255, 255, 255, 0.5);

	/* 阴影 - 柔和多层 */
	--shadow-sm: 0 1px 2px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.02);
	--shadow-md: 0 4px 12px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.03);
	--shadow-lg: 0 12px 32px rgba(0,0,0,0.07), 0 4px 8px rgba(0,0,0,0.04);
	--shadow-xl: 0 24px 48px rgba(0,0,0,0.08), 0 8px 16px rgba(0,0,0,0.04);
	--shadow-glow: 0 0 0 1px rgba(232, 83, 45, 0.15), 0 4px 16px rgba(232, 83, 45, 0.12);

	/* 圆角 */
	--radius-sm: 8px;
	--radius-md: 12px;
	--radius-lg: 16px;
	--radius-xl: 20px;
	--radius-full: 9999px;

	/* 动效曲线 */
	--ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
	--ease-spring: cubic-bezier(0.22, 1, 0.36, 1);
	--ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
	--ease-out: cubic-bezier(0, 0, 0.2, 1);

	/* 字体 */
	--font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
	--font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;

	/* 尺寸 */
	--header-height: 64px;
	--max-width: 1200px;
	--safe-bottom: env(safe-area-inset-bottom, 0px);
}

html {
	scroll-behavior: smooth;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

body {
	font-family: var(--font-sans);
	background: var(--bg-body);
	color: var(--text-primary);
	line-height: 1.6;
	min-height: 100vh;
	overflow-x: hidden;
}

/* ===== 玻璃拟态基础 ===== */
.glass {
	background: var(--bg-surface);
	backdrop-filter: blur(20px) saturate(180%);
	-webkit-backdrop-filter: blur(20px) saturate(180%);
	border: 1px solid var(--border-glass);
}

.glass-strong {
	background: var(--bg-card);
	backdrop-filter: blur(40px) saturate(180%);
	-webkit-backdrop-filter: blur(40px) saturate(180%);
	border: 1px solid var(--border-glass);
}

/* ===== 按钮系统 ===== */
.yfq-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	padding: 10px 20px;
	border-radius: var(--radius-md);
	font-size: 14px;
	font-weight: 600;
	border: none;
	cursor: pointer;
	transition: all 0.25s var(--ease-spring);
	position: relative;
	overflow: hidden;
	white-space: nowrap;
}

.yfq-btn:active {
	transform: scale(0.96);
}

.yfq-btn-primary {
	background: var(--primary);
	color: var(--text-inverse);
	box-shadow: 0 2px 8px rgba(232, 83, 45, 0.25);
}

.yfq-btn-primary:hover {
	background: var(--primary-hover);
	box-shadow: 0 4px 16px rgba(232, 83, 45, 0.35);
	transform: translateY(-1px);
}

.yfq-btn-secondary {
	background: var(--bg-solid);
	color: var(--text-primary);
	border: 1px solid var(--border-medium);
}

.yfq-btn-secondary:hover {
	background: var(--bg-hover);
	border-color: var(--border-medium);
	transform: translateY(-1px);
}

.yfq-btn-ghost {
	background: transparent;
	color: var(--text-secondary);
}

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

.yfq-btn-danger {
	background: #FF3B30;
	color: white;
}

.yfq-btn-danger:hover {
	background: #E0352B;
	transform: translateY(-1px);
}

.yfq-btn-sm {
	padding: 6px 14px;
	font-size: 13px;
	border-radius: var(--radius-sm);
}

.yfq-btn-lg {
	padding: 14px 28px;
	font-size: 15px;
	border-radius: var(--radius-lg);
}

/* ===== 卡片 ===== */
.yfq-card {
	background: var(--bg-card);
	backdrop-filter: blur(20px) saturate(160%);
	-webkit-backdrop-filter: blur(20px) saturate(160%);
	border: 1px solid var(--border-glass);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-md);
	transition: all 0.3s var(--ease-spring);
}

.yfq-card:hover {
	box-shadow: var(--shadow-lg);
	transform: translateY(-2px);
}

/* ===== 输入框 ===== */
.yfq-input {
	width: 100%;
	padding: 12px 16px;
	background: var(--bg-solid);
	border: 1px solid var(--border-light);
	border-radius: var(--radius-md);
	font-size: 14px;
	color: var(--text-primary);
	transition: all 0.2s var(--ease-smooth);
	outline: none;
	font-family: inherit;
}

.yfq-input:focus {
	border-color: var(--primary);
	box-shadow: 0 0 0 3px var(--primary-soft);
}

.yfq-input::placeholder {
	color: var(--text-tertiary);
}

/* ===== 标签 ===== */
.yfq-tag {
	display: inline-flex;
	align-items: center;
	padding: 3px 10px;
	background: var(--primary-soft);
	color: var(--primary);
	border-radius: var(--radius-full);
	font-size: 11px;
	font-weight: 600;
	letter-spacing: 0.02em;
}

.yfq-tag-green {
	background: rgba(52, 199, 89, 0.1);
	color: #34C759;
}

.yfq-tag-blue {
	background: rgba(0, 122, 255, 0.1);
	color: #007AFF;
}

.yfq-tag-orange {
	background: rgba(255, 149, 0, 0.1);
	color: #FF9500;
}

/* ===== Toast ===== */
.yfq-toast {
	position: fixed;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%) scale(0.9);
	background: rgba(0, 0, 0, 0.75);
	backdrop-filter: blur(20px);
	-webkit-backdrop-filter: blur(20px);
	color: white;
	padding: 14px 28px;
	border-radius: var(--radius-xl);
	font-size: 14px;
	font-weight: 500;
	z-index: 9999;
	opacity: 0;
	transition: all 0.3s var(--ease-spring);
	pointer-events: none;
	white-space: nowrap;
}

.yfq-toast.show {
	opacity: 1;
	transform: translate(-50%, -50%) scale(1);
}

/* ===== Modal ===== */
.yfq-modal {
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, 0.35);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
	z-index: 10000;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 20px;
	opacity: 0;
	transition: opacity 0.3s var(--ease-smooth);
}

.yfq-modal.show {
	opacity: 1;
}

.yfq-modal-content {
	background: var(--bg-card);
	backdrop-filter: blur(40px) saturate(180%);
	-webkit-backdrop-filter: blur(40px) saturate(180%);
	border: 1px solid var(--border-glass);
	border-radius: var(--radius-xl);
	padding: 28px;
	max-width: 420px;
	width: 100%;
	box-shadow: var(--shadow-xl);
	transform: scale(0.92) translateY(10px);
	transition: transform 0.35s var(--ease-spring);
}

.yfq-modal.show .yfq-modal-content {
	transform: scale(1) translateY(0);
}

.yfq-modal-content h3 {
	font-size: 18px;
	font-weight: 700;
	margin-bottom: 8px;
	color: var(--text-primary);
}

.yfq-modal-content p {
	font-size: 14px;
	color: var(--text-secondary);
	line-height: 1.6;
	margin-bottom: 20px;
}

.yfq-modal-actions {
	display: flex;
	gap: 10px;
	justify-content: flex-end;
}

.yfq-modal-actions .yfq-btn {
	padding: 10px 20px;
}

/* ===== 骨架屏 ===== */
.yfq-skeleton {
	background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
	background-size: 200% 100%;
	border-radius: var(--radius-sm);
	animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
	0% { background-position: 200% 0; }
	100% { background-position: -200% 0; }
}

/* ===== 加载动画 ===== */
.yfq-spinner {
	width: 24px;
	height: 24px;
	border: 2.5px solid var(--border-light);
	border-top-color: var(--primary);
	border-radius: 50%;
	animation: spin 0.8s linear infinite;
}

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

/* ===== 页面过渡动画 ===== */
@keyframes fadeIn {
	from { opacity: 0; }
	to { opacity: 1; }
}

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

@keyframes fadeInDown {
	from {
		opacity: 0;
		transform: translateY(-12px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

@keyframes scaleIn {
	from {
		opacity: 0;
		transform: scale(0.95);
	}
	to {
		opacity: 1;
		transform: scale(1);
	}
}

@keyframes slideUp {
	from {
		opacity: 0;
		transform: translateY(40px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.animate-fadeIn { animation: fadeIn 0.4s var(--ease-smooth); }
.animate-fadeInUp { animation: fadeInUp 0.5s var(--ease-spring); }
.animate-scaleIn { animation: scaleIn 0.35s var(--ease-spring); }
.animate-slideUp { animation: slideUp 0.6s var(--ease-spring); }

/* ===== 滚动条 ===== */
::-webkit-scrollbar {
	width: 6px;
	height: 6px;
}

::-webkit-scrollbar-track {
	background: transparent;
}

::-webkit-scrollbar-thumb {
	background: rgba(0, 0, 0, 0.12);
	border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
	background: rgba(0, 0, 0, 0.2);
}

/* ===== 顶部导航 ===== */
.yfq-header {
	position: sticky;
	top: 0;
	z-index: 100;
	height: var(--header-height);
	background: rgba(245, 245, 247, 0.82);
	backdrop-filter: blur(20px) saturate(180%);
	-webkit-backdrop-filter: blur(20px) saturate(180%);
	border-bottom: 1px solid var(--border-light);
	transition: all 0.3s var(--ease-smooth);
}

.yfq-header-inner {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 0 24px;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.yfq-header-title {
	font-size: 18px;
	font-weight: 700;
	letter-spacing: -0.01em;
}

/* ===== 空状态 ===== */
.yfq-empty {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	padding: 80px 20px;
	color: var(--text-tertiary);
	text-align: center;
}

.yfq-empty-icon {
	font-size: 56px;
	margin-bottom: 16px;
	opacity: 0.4;
}

.yfq-empty h3 {
	font-size: 16px;
	font-weight: 600;
	color: var(--text-secondary);
	margin-bottom: 6px;
}

.yfq-empty p {
	font-size: 13px;
}

/* ===== 底部安全区 ===== */
.safe-bottom {
	padding-bottom: calc(20px + var(--safe-bottom));
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
	:root {
		--header-height: 56px;
	}

	.yfq-header-inner {
		padding: 0 16px;
	}

	.yfq-modal-content {
		padding: 22px;
	}

	.yfq-card:hover {
		transform: none;
	}
}

@media (max-width: 480px) {
	.yfq-btn-lg {
		padding: 12px 20px;
		font-size: 14px;
	}
}