:root {
		--deep-blue: #020617;
		--accent: #22D3EE;
		--gold: #F59E0B;
	}

	/* ===== 布局 ===== */
	.relative {
		position: relative;
	}

	.absolute {
		position: absolute;
	}

	.inset-0 {
		top: 0;
		right: 0;
		bottom: 0;
		left: 0;
	}

	.w-full {
		width: 100%;
	}

	.h-full {
		height: 100%;
	}

	.flex {
		display: flex;
	}

	.inline-flex {
		display: inline-flex;
	}

	.flex-col {
		flex-direction: column;
	}

	.flex-wrap {
		flex-wrap: wrap;
	}

	.items-center {
		align-items: center;
	}

	.justify-center {
		justify-content: center;
	}

	.justify-between {
		justify-content: space-between;
	}

	.flex-1 {
		flex: 1 1 0%;
	}

	.gap-1 {
		gap: 0.25rem;
	}

	.gap-2 {
		gap: 0.5rem;
	}

	.gap-3 {
		gap: 0.75rem;
	}

	.gap-4 {
		gap: 1rem;
	}

	.gap-12 {
		gap: 3rem;
	}

	.self-end {
		align-self: flex-end;
	}

	.overflow-hidden {
		overflow: hidden;
	}

	.pointer-events-none {
		pointer-events: none;
	}

	.mx-auto {
		margin-left: auto;
		margin-right: auto;
	}

	.text-center {
		text-align: center;
	}

	/* ===== 间距 ===== */
	.mt-1 {
		margin-top: 0.25rem;
	}

	.mt-2 {
		margin-top: 0.5rem;
	}

	.mt-3 {
		margin-top: 0.75rem;
	}

	.mt-4 {
		margin-top: 1rem;
	}

	.mb-1 {
		margin-bottom: 0.25rem;
	}

	.mb-2 {
		margin-bottom: 0.5rem;
	}

	.mb-3 {
		margin-bottom: 0.75rem;
	}

	.mb-4 {
		margin-bottom: 1rem;
	}

	.mb-5 {
		margin-bottom: 1.25rem;
	}

	.mb-6 {
		margin-bottom: 1.5rem;
	}

	.mb-8 {
		margin-bottom: 2rem;
	}

	.mb-10 {
		margin-bottom: 2.5rem;
	}

	.mb-12 {
		margin-bottom: 3rem;
	}

	.ml-2 {
		margin-left: 0.5rem;
	}

	.px-3 {
		padding-left: 0.75rem;
		padding-right: 0.75rem;
	}

	.px-4 {
		padding-left: 1rem;
		padding-right: 1rem;
	}

	.px-5 {
		padding-left: 1.25rem;
		padding-right: 1.25rem;
	}

	.px-8 {
		padding-left: 2rem;
		padding-right: 2rem;
	}

	.py-0\.5 {
		padding-top: 0.125rem;
		padding-bottom: 0.125rem;
	}

	.py-1 {
		padding-top: 0.25rem;
		padding-bottom: 0.25rem;
	}

	.py-1\.5 {
		padding-top: 0.375rem;
		padding-bottom: 0.375rem;
	}

	.py-2 {
		padding-top: 0.5rem;
		padding-bottom: 0.5rem;
	}

	.py-4 {
		padding-top: 1rem;
		padding-bottom: 1rem;
	}

	.py-16 {
		padding-top: 4rem;
		padding-bottom: 4rem;
	}

	/* ===== 文本 ===== */
	.text-xs {
		font-size: 0.75rem;
	}

	.text-sm {
		font-size: 0.875rem;
	}

	.text-base {
		font-size: 1rem;
	}

	.text-lg {
		font-size: 1.125rem;
	}

	.text-2xl {
		font-size: 1.5rem;
	}

	.text-3xl {
		font-size: 1.875rem;
	}

	.text-4xl {
		font-size: 2.25rem;
	}

	.text-5xl {
		font-size: 3rem;
	}

	.font-bold {
		font-weight: 700;
	}

	.font-extrabold {
		font-weight: 800;
	}

	.font-semibold {
		font-weight: 600;
	}

	.font-medium {
		font-weight: 500;
	}

	.font-mono {
		font-family: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Consolas', monospace;
	}

	.uppercase {
		text-transform: uppercase;
	}

	.tracking-tight {
		letter-spacing: -0.025em;
	}

	.tracking-widest {
		letter-spacing: 0.1em;
	}

	.leading-tight {
		line-height: 1.25;
	}

	.leading-relaxed {
		line-height: 1.625;
	}

	.text-white {
		color: #F8FAFC;
	}

	.text-white\/30 {
		color: rgba(255, 255, 255, 0.3);
	}

	.text-white\/40 {
		color: rgba(255, 255, 255, 0.4);
	}

	.text-white\/50 {
		color: rgba(255, 255, 255, 0.5);
	}

	.text-white\/60 {
		color: rgba(255, 255, 255, 0.6);
	}

	.text-white\/70 {
		color: rgba(255, 255, 255, 0.7);
	}

	.text-white\/80 {
		color: rgba(255, 255, 255, 0.8);
	}

	.text-accent {
		color: #22D3EE;
	}

	.text-accent\/60 {
		color: rgba(34, 211, 238, 0.6);
	}

	.text-deep-blue {
		color: #020617;
	}

	.text-gold {
		color: #F59E0B;
	}

	/* ===== 背景 ===== */
	.bg-white\/10 {
		background-color: rgba(255, 255, 255, 0.1);
	}

	.bg-white\/20 {
		background-color: rgba(255, 255, 255, 0.2);
	}

	.bg-accent\/5 {
		background-color: rgba(34, 211, 238, 0.05);
	}

	.bg-accent\/10 {
		background-color: rgba(34, 211, 238, 0.1);
	}

	.bg-accent {
		background-color: #22D3EE;
	}

	.hover\:bg-accent\/10:hover {
		background-color: rgba(34, 211, 238, 0.1);
	}

	.hover\:bg-cyan-400:hover {
		background-color: #22D3EE;
	}

	/* ===== 边框 ===== */
	.border {
		border-width: 1px;
	}

	.border-white\/5 {
		border-color: rgba(255, 255, 255, 0.05);
	}

	.border-white\/20 {
		border-color: rgba(255, 255, 255, 0.2);
	}

	.border-white\/30 {
		border-color: rgba(255, 255, 255, 0.3);
	}

	.border-accent {
		border-color: #22D3EE;
	}

	.border-accent\/30 {
		border-color: rgba(34, 211, 238, 0.3);
	}

	.rounded-lg {
		border-radius: 0.5rem;
	}

	.rounded-xl {
		border-radius: 0.75rem;
	}

	.rounded-2xl {
		border-radius: 1rem;
	}

	.rounded-full {
		border-radius: 50%;
	}

	/* ===== 尺寸 ===== */
	.w-4 {
		width: 1rem;
	}

	.h-4 {
		height: 1rem;
	}

	.w-8 {
		width: 2rem;
	}

	.h-8 {
		height: 2rem;
	}

	.w-96 {
		width: 24rem;
	}

	.h-96 {
		height: 24rem;
	}

	.h-px {
		height: 1px;
	}

	.w-3\/4 {
		width: 75%;
	}

	.max-w-sm {
		max-width: 24rem;
	}

	.max-w-md {
		max-width: 28rem;
	}

	.max-w-xl {
		max-width: 36rem;
	}

	.max-w-7xl {
		max-width: 80rem;
	}

	/* ===== 位置 ===== */
	.top-0 {
		top: 0;
	}

	.top-1\/3 {
		top: 33.3333%;
	}

	.left-1\/2 {
		left: 50%;
	}

	.left-1\/4 {
		left: 25%;
	}

	.-translate-x-1\/2 {
		transform: translateX(-50%);
	}

	/* ===== 阴影 ===== */
	.shadow-\[0_0_30px_rgba\(34\,211\,238\,0\.5\)\] {
		box-shadow: 0 0 30px rgba(34, 211, 238, 0.5);
	}

	/* ===== 渐变 ===== */
	.bg-gradient-to-r {
		background-image: linear-gradient(to right, var(--tw-gradient-from, transparent), var(--tw-gradient-to, transparent));
	}

	.from-transparent {
		--tw-gradient-from: transparent;
		--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(0, 0, 0, 0));
	}

	.via-accent\/50 {
		--tw-gradient-to: rgba(34, 211, 238, 0.5);
	}

	.to-transparent {
		--tw-gradient-to: transparent;
	}

	/* ===== 特效 ===== */
	.backdrop-blur-sm {
		backdrop-filter: blur(4px);
		-webkit-backdrop-filter: blur(4px);
	}

	.backdrop-blur-md {
		backdrop-filter: blur(12px);
		-webkit-backdrop-filter: blur(12px);
	}

	.backdrop-blur-xl {
		backdrop-filter: blur(24px);
		-webkit-backdrop-filter: blur(24px);
	}

	.opacity-20 {
		opacity: 0.2;
	}

	.transition-colors {
		transition-property: color, background-color, border-color;
		transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
		transition-duration: 150ms;
	}

	.transition-all {
		transition-property: all;
		transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
	}

	.duration-300 {
		transition-duration: 300ms;
	}

	.hidden {
		display: none;
	}

	.inline-block {
		display: inline-block;
	}

	.block {
		display: block;
	}

	.scale-\[1\.02\] {
		transform: scale(1.02);
	}

	.hover\:scale-\[1\.02\]:hover {
		transform: scale(1.02);
	}

	.hover\:shadow-\[0_0_30px_rgba\(34\,211\,238\,0\.5\)\]:hover {
		box-shadow: 0 0 30px rgba(34, 211, 238, 0.5);
	}

	/* 动画脉冲 */
	@keyframes pulse {

		0%,
		100% {
			opacity: 1;
		}

		50% {
			opacity: 0.5;
		}
	}

	.animate-pulse {
		animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
	}

	/* 模糊滤镜 */
	.blur-\[120px\] {
		filter: blur(120px);
	}

	/* ===== 自定义滑块 ===== */
	input[type="range"] {
		-webkit-appearance: none;
		width: 100%;
		height: 8px;
		border-radius: 10px;
		background: linear-gradient(to right, #22D3EE 0%, #22D3EE var(--fill-percent, 50%), rgba(255, 255, 255, 0.1) var(--fill-percent, 50%));
		outline: none;
		transition: background 0.1s ease;
	}

	input[type="range"]::-webkit-slider-thumb {
		-webkit-appearance: none;
		width: 24px;
		height: 24px;
		border-radius: 50%;
		background: #22D3EE;
		box-shadow: 0 0 20px #22D3EE, 0 0 40px rgba(34, 211, 238, 0.5);
		cursor: pointer;
		border: 2px solid white;
		transition: transform 0.1s ease;
	}

	input[type="range"]::-webkit-slider-thumb:hover {
		transform: scale(1.2);
	}

	/* 结算卡片 */
	.checkout-card {
		background: rgba(15, 23, 42, 0.6);
		backdrop-filter: blur(20px);
		border: 1px solid rgba(255, 255, 255, 0.08);
		box-shadow: 0 0 40px rgba(34, 211, 238, 0.08), inset 0 0 20px rgba(34, 211, 238, 0.02);
	}

	.checkout-panel {
		max-width: 44rem;
		margin-left: auto;
		justify-content: flex-end;
	}

	.checkout-card-wide {
		max-width: 44rem;
	}

	.price-digit {
		transition: color 0.3s ease;
	}

	.best-value-badge {
		background: linear-gradient(135deg, #F59E0B, #D97706);
		color: #020617;
		font-weight: 700;
		letter-spacing: 0.5px;
	}

	/* ===== 响应式 ===== */
	@media (min-width: 640px) {
		.sm\:px-6 {
			padding-left: 1.5rem;
			padding-right: 1.5rem;
		}

		.sm\:text-4xl {
			font-size: 2.25rem;
		}

		.sm\:text-lg {
			font-size: 1.125rem;
		}
	}

	@media (min-width: 1024px) {
		.lg\:flex-row {
			flex-direction: row;
		}

		.lg\:text-5xl {
			font-size: 3rem;
		}

		.lg\:py-20 {
			padding-top: 5rem;
			padding-bottom: 5rem;
		}

		.lg\:px-8 {
			padding-left: 2rem;
			padding-right: 2rem;
		}

		.lg\:gap-20 {
			gap: 5rem;
		}

		.lg\:max-w-none {
			max-width: none;
		}

		.checkout-panel {
			max-width: 44rem;
		}
	}

	.quick-btn {
		border-radius: 20px;
		background-color: #020819;
	}

	.validity-btn {
		background-color: #020819;
	}

	#home-six > section {
		min-height: auto !important;
	}

	#home-six > section > .relative.z-10 {
		padding-top: 2.75rem !important;
		padding-bottom: 2.75rem !important;
	}

	#home-six .gap-12 {
		gap: 2.25rem;
	}

	#home-six .mb-10 {
		margin-bottom: 1.5rem;
	}

	#home-six .mb-8 {
		margin-bottom: 1.25rem;
	}

	#home-six .mb-6 {
		margin-bottom: 1rem;
	}

	#home-six .checkout-card {
		padding: 1.25rem !important;
	}

	@media (min-width: 1024px) {
		#home-six > section > .relative.z-10 {
			padding-top: 3rem !important;
			padding-bottom: 3rem !important;
		}

		#home-six .lg\:gap-20 {
			gap: 3.25rem;
		}

		#home-six h2 + p {
			max-width: 34rem;
		}
	}