/* ===== CSS Variables & Reset ===== */
:root {
	--color-bg-deep: #050810;
	--color-bg-dark: #0a0f1e;
	--color-bg-card: rgba(15, 23, 42, 0.7);
	--color-bg-card-hover: rgba(15, 23, 42, 0.9);
	--color-primary: #06b6d4;
	--color-primary-light: #22d3ee;
	--color-primary-dark: #0891b2;
	--color-accent: #3b82f6;
	--color-accent-light: #60a5fa;
	--color-gold: #f59e0b;
	--color-gold-light: #fbbf24;
	--color-text: #e2e8f0;
	--color-text-muted: #94a3b8;
	--color-text-dim: #64748b;
	--color-border: rgba(6, 182, 212, 0.15);
	--color-border-strong: rgba(6, 182, 212, 0.3);
	--gradient-hero: linear-gradient(135deg, #050810 0%, #0a1628 50%, #0c1a2e 100%);
	--gradient-card: linear-gradient(145deg, rgba(15, 23, 42, 0.8), rgba(10, 15, 30, 0.9));
	--gradient-accent: linear-gradient(135deg, #06b6d4, #3b82f6);
	--gradient-gold: linear-gradient(135deg, #f59e0b, #fbbf24);
	--shadow-glow: 0 0 30px rgba(6, 182, 212, 0.15);
	--shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
	--font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
	--font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
	--transition-fast: 0.2s ease;
	--transition-normal: 0.3s ease;
	--transition-slow: 0.5s ease;
}

*, *::before, *::after {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
	font-size: 16px;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

body {
	font-family: var(--font-body);
	background: var(--color-bg-deep);
	color: var(--color-text);
	line-height: 1.7;
	overflow-x: hidden;
	min-height: 100vh;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
	width: 8px;
}
::-webkit-scrollbar-track {
	background: var(--color-bg-dark);
}
::-webkit-scrollbar-thumb {
	background: var(--color-primary-dark);
	border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
	background: var(--color-primary);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
	font-family: var(--font-heading);
	font-weight: 700;
	line-height: 1.3;
	color: #fff;
}

a {
	color: var(--color-primary-light);
	text-decoration: none;
	transition: color var(--transition-fast);
}
a:hover {
	color: var(--color-gold-light);
}

img {
	max-width: 100%;
	height: auto;
	display: block;
}

/* ===== Utility Classes ===== */
.container {
	width: 100%;
	max-width: 1280px;
	margin: 0 auto;
	padding: 0 24px;
}

.section {
	padding: 100px 0;
	position: relative;
}

.section-title {
	font-size: clamp(1.8rem, 4vw, 2.8rem);
	text-align: center;
	margin-bottom: 16px;
	background: var(--gradient-accent);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.section-subtitle {
	font-size: clamp(1rem, 2vw, 1.15rem);
	color: var(--color-text-muted);
	text-align: center;
	max-width: 740px;
	margin: 0 auto 60px;
}

.gradient-text {
	background: var(--gradient-accent);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.gold-text {
	background: var(--gradient-gold);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.tag {
	display: inline-block;
	padding: 4px 14px;
	border-radius: 20px;
	font-size: 0.8rem;
	font-weight: 500;
	border: 1px solid var(--color-border-strong);
	color: var(--color-primary-light);
	background: rgba(6, 182, 212, 0.08);
}

/* ===== Buttons ===== */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 14px 32px;
	border-radius: 8px;
	font-size: 1rem;
	font-weight: 600;
	cursor: pointer;
	transition: all var(--transition-normal);
	border: none;
	font-family: var(--font-body);
}

.btn-primary {
	background: var(--gradient-accent);
	color: #fff;
	box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
}
.btn-primary:hover {
	transform: translateY(-2px);
	box-shadow: 0 8px 30px rgba(6, 182, 212, 0.4);
	color: #fff;
}

.btn-outline {
	background: transparent;
	color: var(--color-primary-light);
	border: 1.5px solid var(--color-primary);
}
.btn-outline:hover {
	background: rgba(6, 182, 212, 0.1);
	color: var(--color-primary-light);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
	from {
		opacity: 0;
		transform: translateY(40px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

@keyframes fadeIn {
	from { opacity: 0; }
	to { opacity: 1; }
}

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

@keyframes float {
	0%, 100% { transform: translateY(0); }
	50% { transform: translateY(-10px); }
}

@keyframes scanLine {
	0% { transform: translateY(-100%); }
	100% { transform: translateY(100vh); }
}

@keyframes rotate {
	from { transform: rotate(0deg); }
	to { transform: rotate(360deg); }
}

.animate-on-scroll {
	opacity: 0;
	transform: translateY(40px);
	transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-on-scroll.visible {
	opacity: 1;
	transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ===== DUAL NAVIGATION ===== */
.navbar-wrapper {
	position: fixed;
	top: 0; left: 0;
	width: 100%;
	z-index: 1000;
}
.navbar-wrapper.hide-top .navbar-top {
	transform: translateY(-100%);
}
.navbar-wrapper.hide-top .navbar-bottom {
	top: 0;
}
.navbar-wrapper.scrolled .navbar-bottom {
	background: rgba(5, 8, 16, 0.97);
	backdrop-filter: blur(20px);
	-webkit-backdrop-filter: blur(20px);
	border-bottom: 1px solid var(--color-border);
}
.navbar-wrapper.scrolled .navbar-bottom .nav-links a {
	color: var(--color-text-muted);
}
.navbar-wrapper.scrolled .navbar-bottom .nav-links a:hover {
	color: var(--color-text);
}
.navbar-wrapper.scrolled .navbar-bottom .nav-cta {
	background: var(--gradient-accent);
	color: #fff !important;
}
.navbar-wrapper.scrolled .navbar-bottom .menu-toggle {
	color: var(--color-text);
}
.navbar-wrapper.scrolled .navbar-bottom .nav-bottom-logo img {
	filter: none;
}

/* Top nav: site-wide */
.navbar-top {
	position: absolute;
	top: 0; left: 0;
	width: 100%;
	background: rgba(5, 8, 16, 0.95);
	border-bottom: 1px solid var(--color-border);
	transition: transform 0.35s ease;
	z-index: 2;
}
.nav-top-inner {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 24px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 52px;
}
.nav-top-logo img {
	height: 32px;
	display: block;
	border-radius: 6px;
}
.nav-top-links {
	display: flex;
	gap: 28px;
}
.nav-top-links a {
	font-size: 0.88rem;
	font-weight: 500;
	color: var(--color-text-muted);
	transition: color 0.25s;
	position: relative;
}
.nav-top-links a:hover {
	color: var(--color-text);
}
.nav-top-links a.active {
	color: var(--color-primary);
}
.nav-top-links a.active::after {
	content: '';
	position: absolute;
	bottom: -16px; left: 0;
	width: 100%; height: 2px;
	background: var(--gradient-accent);
}
.nav-top-right {
	display: flex;
	align-items: center;
	gap: 16px;
}
.nav-top-tel {
	font-size: 0.85rem;
	color: var(--color-text-muted);
	display: flex;
	align-items: center;
	gap: 4px;
}
.nav-top-tel strong {
	color: var(--color-primary);
	font-weight: 700;
	font-size: 0.9rem;
}
.nav-top-login {
	font-size: 0.85rem;
	color: var(--color-text-muted);
	padding: 4px 14px;
	border: 1px solid var(--color-border);
	border-radius: 6px;
	transition: all 0.25s;
}
.nav-top-login:hover {
	border-color: var(--color-primary);
	color: var(--color-primary);
}

/* Bottom nav: page-level */
.navbar-bottom {
	position: absolute;
	top: 52px; left: 0;
	width: 100%;
	background: transparent;
	transition: top 0.35s ease, background 0.3s ease, border-bottom 0.3s ease;
	z-index: 1;
}
.nav-bottom-inner {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 24px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 48px;
}
.nav-bottom-logo {
	display: none;
	align-items: center;
	gap: 8px;
}
.nav-bottom-logo img {
	height: 28px;
	border-radius: 6px;
	filter: brightness(0) invert(1);
	transition: filter 0.3s;
}
.navbar-bottom .nav-links {
	display: flex;
	gap: 28px;
	align-items: center;
	list-style: none;
}
.navbar-bottom .nav-links a {
	color: var(--color-text-muted);
	font-size: 0.88rem;
	font-weight: 500;
	transition: color 0.25s;
	position: relative;
	padding: 4px 0;
}
.navbar-bottom .nav-links a::after {
	content: '';
	position: absolute;
	bottom: 0; left: 0;
	width: 0; height: 2px;
	background: var(--gradient-accent);
	transition: width 0.3s;
}
.navbar-bottom .nav-links a:hover {
	color: var(--color-text);
}
.navbar-bottom .nav-links a:hover::after {
	width: 100%;
}
.nav-right {
	display: flex;
	align-items: center;
	gap: 16px;
}
.nav-cta {
	background: var(--gradient-accent);
	color: #fff !important;
	padding: 7px 18px;
	border-radius: 6px;
	font-weight: 600;
	font-size: 0.85rem;
	transition: all 0.3s;
	box-shadow: 0 4px 15px rgba(6, 182, 212, 0.25);
}
.nav-cta:hover {
	transform: translateY(-2px);
	box-shadow: 0 6px 25px rgba(6, 182, 212, 0.4);
}
.menu-toggle {
	display: none;
	font-size: 1.4rem;
	color: var(--color-text);
	background: none;
	border: none;
	cursor: pointer;
	padding: 8px;
}

/* Mobile nav overlay & panel */
.mobile-nav-overlay {
	display: none;
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, 0.5);
	z-index: 998;
}
.mobile-nav-overlay.open {
	display: block;
}
.mobile-nav-panel {
	display: block;
	position: fixed;
	top: 0; right: 0;
	width: 300px;
	max-width: 85vw;
	height: 100vh;
	background: var(--color-bg-dark);
	z-index: 999;
	padding: 80px 24px 24px;
	overflow-y: auto;
	transform: translateX(100%);
	transition: transform 0.35s ease;
	border-left: 1px solid var(--color-border);
}
.mobile-nav-panel.open {
	transform: translateX(0);
}
.mobile-close {
	position: absolute;
	top: 20px;
	right: 20px;
	width: 32px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	font-size: 1.3rem;
	color: var(--color-text-muted);
	background: none;
	border: none;
}
.mobile-close:hover {
	color: var(--color-text);
}
.mobile-section {
	margin-bottom: 24px;
}
.mobile-section h4 {
	font-size: 0.7rem;
	color: var(--color-text-muted);
	text-transform: uppercase;
	letter-spacing: 1px;
	margin-bottom: 10px;
}
.mobile-section a {
	display: block;
	padding: 10px 0;
	font-size: 0.92rem;
	color: var(--color-text-muted);
	border-bottom: 1px solid var(--color-border);
	transition: color 0.2s;
}
.mobile-section a:hover {
	color: var(--color-primary);
}

/* ===== Hero Section ===== */
.hero {
	min-height: 100vh;
	display: flex;
	align-items: center;
	position: relative;
	overflow: hidden;
	background: var(--gradient-hero);
	padding-top: 120px;
}

.hero-bg-grid {
	position: absolute;
	inset: 0;
	background-image: 
		linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
		linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
	background-size: 60px 60px;
	mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
	-webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

.hero-glow {
	position: absolute;
	width: 600px;
	height: 600px;
	border-radius: 50%;
	background: radial-gradient(circle, rgba(6, 182, 212, 0.12), transparent 70%);
	top: 50%;
	right: -100px;
	transform: translateY(-50%);
	pointer-events: none;
}

.hero .container {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
	position: relative;
	z-index: 1;
}

.hero-badge {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 8px 18px;
	background: rgba(6, 182, 212, 0.1);
	border: 1px solid var(--color-border-strong);
	border-radius: 30px;
	font-size: 0.85rem;
	color: var(--color-primary-light);
	margin-bottom: 24px;
	animation: fadeInUp 0.6s ease both;
}
.hero-badge .dot {
	width: 8px;
	height: 8px;
	background: var(--color-primary);
	border-radius: 50%;
	animation: pulse 2s ease infinite;
}

.hero h1 {
	font-size: clamp(2rem, 5vw, 3.5rem);
	line-height: 1.15;
	margin-bottom: 20px;
	animation: fadeInUp 0.6s 0.1s ease both;
}

.hero p.lead {
	font-size: clamp(1rem, 2vw, 1.25rem);
	color: var(--color-text-muted);
	margin-bottom: 32px;
	max-width: 540px;
	animation: fadeInUp 0.6s 0.2s ease both;
}

.hero-buttons {
	display: flex;
	gap: 16px;
	flex-wrap: wrap;
	animation: fadeInUp 0.6s 0.3s ease both;
}

.hero-stats {
	display: flex;
	gap: 40px;
	margin-top: 48px;
	animation: fadeInUp 0.6s 0.4s ease both;
}
.hero-stat {
	text-align: center;
}
.hero-stat .number {
	font-size: 2rem;
	font-weight: 800;
	background: var(--gradient-gold);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}
.hero-stat .label {
	font-size: 0.8rem;
	color: var(--color-text-dim);
	margin-top: 4px;
}

/* Hero Visual */
.hero-visual {
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
	animation: fadeIn 1s 0.3s ease both;
}

.pda-device {
	position: relative;
	width: 280px;
	height: 500px;
	background: linear-gradient(145deg, #1a2332, #0f1720);
	border-radius: 32px;
	border: 2px solid rgba(6, 182, 212, 0.2);
	box-shadow: 
		0 0 60px rgba(6, 182, 212, 0.15),
		inset 0 1px 0 rgba(255, 255, 255, 0.05);
	display: flex;
	flex-direction: column;
	overflow: hidden;
}
.pda-device::before {
	content: '';
	position: absolute;
	top: 12px;
	left: 50%;
	transform: translateX(-50%);
	width: 80px;
	height: 4px;
	background: rgba(255, 255, 255, 0.1);
	border-radius: 2px;
}

.pda-screen {
	flex: 1;
	margin: 30px 14px 14px;
	background: linear-gradient(180deg, #0a1628, #0c1a2e);
	border-radius: 20px;
	border: 1px solid rgba(6, 182, 212, 0.1);
	padding: 20px;
	display: flex;
	flex-direction: column;
	gap: 12px;
	position: relative;
	overflow: hidden;
}
.pda-screen::after {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 1px;
	background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
	animation: scanLine 3s linear infinite;
}

.pda-scan-line {
	height: 3px;
	background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
	border-radius: 2px;
	animation: scanLine 2.5s linear infinite;
	opacity: 0.6;
}

.pda-barcode {
	display: flex;
	gap: 2px;
	justify-content: center;
	padding: 8px 0;
}
.pda-barcode span {
	background: var(--color-primary);
	border-radius: 1px;
}

.pda-data-row {
	display: flex;
	justify-content: space-between;
	font-size: 0.7rem;
	color: var(--color-text-dim);
}
.pda-data-row .value {
	color: var(--color-primary-light);
	font-weight: 600;
}

.pda-btn-group {
	display: flex;
	gap: 6px;
}
.pda-mini-btn {
	flex: 1;
	padding: 8px;
	border-radius: 8px;
	background: rgba(6, 182, 212, 0.15);
	border: 1px solid var(--color-border);
	color: var(--color-primary-light);
	font-size: 0.65rem;
	text-align: center;
}

.pda-home-btn {
	position: absolute;
	bottom: 8px;
	left: 50%;
	transform: translateX(-50%);
	width: 36px;
	height: 36px;
	border-radius: 50%;
	border: 2px solid rgba(6, 182, 212, 0.3);
	background: transparent;
}

.orbit-ring {
	position: absolute;
	border: 1px dashed rgba(6, 182, 212, 0.15);
	border-radius: 50%;
	animation: rotate 20s linear infinite;
}
.orbit-ring-1 {
	width: 400px;
	height: 400px;
	animation-duration: 25s;
}
.orbit-ring-2 {
	width: 500px;
	height: 500px;
	animation-duration: 35s;
	animation-direction: reverse;
}
.orbit-ring-3 {
	width: 600px;
	height: 600px;
	animation-duration: 45s;
}

.orbit-dot {
	position: absolute;
	width: 8px;
	height: 8px;
	background: var(--color-primary);
	border-radius: 50%;
	box-shadow: 0 0 10px var(--color-primary);
}

/* ===== Overview Section ===== */
.overview {
	background: linear-gradient(180deg, var(--color-bg-deep), var(--color-bg-dark));
}
.overview-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
}

.overview-content h2 {
	font-size: clamp(1.6rem, 3.5vw, 2.4rem);
	margin-bottom: 20px;
}
.overview-content p {
	color: var(--color-text-muted);
	margin-bottom: 20px;
	font-size: 1.05rem;
}

.overview-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	margin-top: 24px;
}

.overview-visual {
	position: relative;
}
.overview-card {
	background: var(--gradient-card);
	border: 1px solid var(--color-border);
	border-radius: 16px;
	padding: 28px;
	position: relative;
	overflow: hidden;
}
.overview-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 2px;
	background: var(--gradient-accent);
}
.overview-card h4 {
	font-size: 1.1rem;
	margin-bottom: 12px;
	display: flex;
	align-items: center;
	gap: 10px;
}
.overview-card p {
	color: var(--color-text-muted);
	font-size: 0.95rem;
}
.overview-card .icon-wrap {
	width: 36px;
	height: 36px;
	background: rgba(6, 182, 212, 0.1);
	border-radius: 10px;
	display: flex;
	align-items: center;
	justify-content: center;
}
.overview-card .icon-wrap svg {
	width: 20px;
	height: 20px;
	stroke: var(--color-primary);
}

/* ===== Pain Points Section ===== */
.pain-points {
	background: var(--color-bg-dark);
}
.pain-points-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}
.pain-card {
	background: var(--gradient-card);
	border: 1px solid var(--color-border);
	border-radius: 16px;
	padding: 32px;
	text-align: center;
	transition: all var(--transition-normal);
	position: relative;
	overflow: hidden;
}
.pain-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 3px;
	background: linear-gradient(90deg, var(--color-gold), transparent);
	opacity: 0;
	transition: opacity var(--transition-normal);
}
.pain-card:hover {
	transform: translateY(-4px);
	border-color: var(--color-border-strong);
	box-shadow: var(--shadow-glow);
}
.pain-card:hover::before {
	opacity: 1;
}
.pain-icon {
	width: 64px;
	height: 64px;
	background: rgba(245, 158, 11, 0.1);
	border-radius: 16px;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 0 auto 20px;
}
.pain-icon svg {
	width: 32px;
	height: 32px;
	stroke: var(--color-gold);
}
.pain-card h3 {
	font-size: 1.2rem;
	margin-bottom: 12px;
	color: var(--color-gold-light);
}
.pain-card p {
	color: var(--color-text-muted);
	font-size: 0.95rem;
}

/* ===== Features Section ===== */
.features {
	background: linear-gradient(180deg, var(--color-bg-dark), var(--color-bg-deep));
}
.features-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 20px;
}
.feature-card {
	background: var(--gradient-card);
	border: 1px solid var(--color-border);
	border-radius: 16px;
	padding: 28px;
	display: flex;
	gap: 20px;
	transition: all var(--transition-normal);
	position: relative;
	overflow: hidden;
}
.feature-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 3px;
	height: 0;
	background: var(--gradient-accent);
	transition: height var(--transition-normal);
}
.feature-card:hover {
	border-color: var(--color-border-strong);
	box-shadow: var(--shadow-glow);
	transform: translateY(-2px);
}
.feature-card:hover::before {
	height: 100%;
}
.feature-num {
	flex-shrink: 0;
	width: 48px;
	height: 48px;
	background: var(--gradient-accent);
	border-radius: 12px;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.2rem;
	font-weight: 800;
	color: #fff;
}
.feature-content h3 {
	font-size: 1.15rem;
	margin-bottom: 8px;
	color: #fff;
}
.feature-content p {
	color: var(--color-text-muted);
	font-size: 0.9rem;
	line-height: 1.7;
}
.feature-tag {
	display: inline-block;
	margin-top: 10px;
	padding: 3px 10px;
	background: rgba(6, 182, 212, 0.1);
	border: 1px solid var(--color-border);
	border-radius: 4px;
	font-size: 0.75rem;
	color: var(--color-primary-light);
}

/* ===== Tech Specs Section ===== */
.tech-specs {
	background: var(--color-bg-deep);
}
.specs-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 20px;
}
.spec-card {
	background: var(--gradient-card);
	border: 1px solid var(--color-border);
	border-radius: 14px;
	padding: 24px;
	text-align: center;
	transition: all var(--transition-normal);
}
.spec-card:hover {
	border-color: var(--color-border-strong);
	transform: translateY(-4px);
}
.spec-card .spec-icon {
	width: 48px;
	height: 48px;
	margin: 0 auto 14px;
	background: rgba(6, 182, 212, 0.1);
	border-radius: 12px;
	display: flex;
	align-items: center;
	justify-content: center;
}
.spec-card .spec-icon svg {
	width: 24px;
	height: 24px;
	stroke: var(--color-primary);
}
.spec-card h4 {
	font-size: 0.95rem;
	margin-bottom: 6px;
}
.spec-card p {
	font-size: 0.85rem;
	color: var(--color-text-muted);
}

/* ===== Flow Section ===== */
.flow {
	background: linear-gradient(180deg, var(--color-bg-deep), var(--color-bg-dark));
}
.flow-steps {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	gap: 16px;
	position: relative;
}
.flow-steps::before {
	content: '';
	position: absolute;
	top: 28px;
	left: 60px;
	right: 60px;
	height: 2px;
	background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
	opacity: 0.3;
}
.flow-step {
	flex: 1;
	text-align: center;
	position: relative;
	z-index: 1;
}
.flow-step .step-num {
	width: 56px;
	height: 56px;
	background: var(--gradient-card);
	border: 2px solid var(--color-border-strong);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 0 auto 16px;
	font-size: 1.2rem;
	font-weight: 800;
	color: var(--color-primary-light);
	transition: all var(--transition-normal);
}
.flow-step:hover .step-num {
	background: var(--gradient-accent);
	color: #fff;
	border-color: var(--color-primary);
	box-shadow: var(--shadow-glow);
}
.flow-step h4 {
	font-size: 0.95rem;
	margin-bottom: 6px;
}
.flow-step p {
	font-size: 0.8rem;
	color: var(--color-text-dim);
}

/* ===== CTA Section ===== */
.cta {
	background: linear-gradient(135deg, #0a1628, #0c2038);
	position: relative;
	overflow: hidden;
}
.cta-bg-glow {
	position: absolute;
	width: 500px;
	height: 500px;
	border-radius: 50%;
	background: radial-gradient(circle, rgba(6, 182, 212, 0.1), transparent 70%);
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	pointer-events: none;
}
.cta .container {
	text-align: center;
	position: relative;
	z-index: 1;
}
.cta h2 {
	font-size: clamp(1.8rem, 4vw, 2.6rem);
	margin-bottom: 16px;
}
.cta p {
	color: var(--color-text-muted);
	font-size: 1.1rem;
	max-width: 560px;
	margin: 0 auto 32px;
}
.cta-buttons {
	display: flex;
	gap: 16px;
	justify-content: center;
	flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
	background: var(--color-bg-deep);
	border-top: 1px solid var(--color-border);
	padding: 48px 0 24px;
}
.footer-grid {
	display: grid;
	grid-template-columns: 2fr 1fr 1fr 1fr;
	gap: 40px;
	margin-bottom: 40px;
}
.footer-brand p {
	color: var(--color-text-muted);
	font-size: 0.9rem;
	margin-top: 12px;
	line-height: 1.7;
}
.footer-col h4 {
	font-size: 0.95rem;
	margin-bottom: 16px;
	color: var(--color-text);
}
.footer-col ul {
	list-style: none;
}
.footer-col ul li {
	margin-bottom: 10px;
}
.footer-col ul li a {
	color: var(--color-text-muted);
	font-size: 0.9rem;
	transition: color var(--transition-fast);
}
.footer-col ul li a:hover {
	color: var(--color-primary-light);
}
.footer-bottom {
	border-top: 1px solid var(--color-border);
	padding-top: 24px;
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
	gap: 12px;
}
.footer-bottom p {
	color: var(--color-text-dim);
	font-size: 0.85rem;
}

/* ===== Back to Top ===== */
.back-to-top {
	position: fixed;
	bottom: 30px;
	right: 30px;
	width: 48px;
	height: 48px;
	background: var(--gradient-card);
	border: 1px solid var(--color-border);
	border-radius: 12px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--color-primary-light);
	cursor: pointer;
	opacity: 0;
	visibility: hidden;
	transition: all var(--transition-normal);
	z-index: 999;
}
.back-to-top.visible {
	opacity: 1;
	visibility: visible;
}
.back-to-top:hover {
	background: var(--gradient-accent);
	color: #fff;
	border-color: var(--color-primary);
	transform: translateY(-4px);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
	.hero .container {
		grid-template-columns: 1fr;
		text-align: center;
	}
	.hero p.lead {
		margin-left: auto;
		margin-right: auto;
	}
	.hero-buttons {
		justify-content: center;
	}
	.hero-stats {
		justify-content: center;
	}
	.hero-visual {
		order: -1;
		margin-bottom: 40px;
	}
	.overview-grid {
		grid-template-columns: 1fr;
	}
	.footer-grid {
		grid-template-columns: 1fr 1fr;
	}
	.specs-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 768px) {
	.section {
		padding: 60px 0;
	}
.navbar-wrapper.hide-top .navbar-top { transform: translateY(-100%); }            .nav-top-right .nav-top-tel { display: none; }            .nav-top-inner { height: 48px; }            .nav-top-logo img { height: 28px; }            .nav-bottom-inner { height: 48px; }            .nav-bottom-logo { display: flex !important; }            .nav-bottom-logo img { height: 26px; filter: brightness(0) invert(1); }            .navbar-wrapper.scrolled .nav-bottom-logo img { filter: none; }            .navbar-bottom .nav-links { display: none; }            .nav-cta { display: none; }            .menu-toggle { display: block; }            .hero { padding-top: 6rem; }
	.pda-device {
		width: 220px;
		height: 400px;
	}
	.orbit-ring-1 { width: 300px; height: 300px; }
	.orbit-ring-2 { width: 360px; height: 360px; }
	.orbit-ring-3 { width: 420px; height: 420px; }
	.pain-points-grid {
		grid-template-columns: 1fr;
	}
	.features-grid {
		grid-template-columns: 1fr;
	}
	.specs-grid {
		grid-template-columns: 1fr 1fr;
	}
	.flow-steps {
		flex-direction: column;
		gap: 32px;
	}
	.flow-steps::before {
		display: none;
	}
	.flow-step {
		display: flex;
		align-items: center;
		text-align: left;
		gap: 16px;
	}
	.flow-step .step-num {
		margin: 0;
		flex-shrink: 0;
	}
	.footer-grid {
		grid-template-columns: 1fr;
		gap: 32px;
	}
	.footer-bottom {
		flex-direction: column;
		text-align: center;
	}
}

@media (max-width: 480px) {
	.container {
		padding: 0 16px;
	}
	.hero-stats {
		gap: 24px;
	}
	.feature-card {
		flex-direction: column;
		gap: 16px;
	}
	.specs-grid {
		grid-template-columns: 1fr;
	}
}

@media print {
	.navbar-wrapper, .back-to-top { display: none !important; }
}