/* ZEHIRON 官网样式 - 工业B2B门户风格
   设计：深蓝(军工底蕴) + 科技橙(活力) + 浅灰底
*/
:root {
	--c-primary: #0a2540; /* 深海军蓝 - 军工/权威 */
	--c-primary-light: #1e3a5f;
	--c-primary-dark: #061a30;
	--c-accent: #d97706; /* 科技橙 - 活力 */
	--c-accent-light: #f59e0b;
	--c-accent-dark: #b45309;
	--c-text: #1a202c;
	--c-text-light: #4a5568;
	--c-muted: #718096;
	--c-bg: #ffffff;
	--c-bg-alt: #f7fafc;
	--c-bg-dark: #0a2540;
	--c-border: #e2e8f0;
	--c-border-light: #edf2f7;
	--c-white: #ffffff;
	--c-success: #059669;

	--radius: 6px;
	--radius-lg: 12px;
	--shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.08);
	--shadow: 0 4px 12px rgba(10, 37, 64, 0.08);
	--shadow-lg: 0 10px 30px rgba(10, 37, 64, 0.12);
	--shadow-hover: 0 12px 32px rgba(10, 37, 64, 0.18);
	--transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
	--max-width: 1280px;
	--header-h: 72px;
	--font-sans:
		'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB',
		Arial, sans-serif;
	--font-mono: 'SF Mono', Monaco, Consolas, 'Courier New', monospace;
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
html {
	scroll-behavior: smooth;
	-webkit-text-size-adjust: 100%;
}
body {
	font-family: var(--font-sans);
	color: var(--c-text);
	background: var(--c-bg);
	line-height: 1.65;
	font-size: 15px;
	-webkit-font-smoothing: antialiased;
}
img {
	max-width: 100%;
	display: block;
}
a {
	color: inherit;
	text-decoration: none;
	transition: var(--transition);
}
button {
	font-family: inherit;
	cursor: pointer;
	border: none;
	background: none;
}
ul {
	list-style: none;
}

.container {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 0 24px;
}

/* ============ Header ============ */
.site-header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	height: var(--header-h);
	background: rgba(255, 255, 255, 0.98);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--c-border-light);
	z-index: 100;
	box-shadow: var(--shadow-sm);
}
.header-inner {
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.brand {
	display: flex;
	align-items: center;
	gap: 10px;
	font-weight: 800;
	font-size: 22px;
	letter-spacing: 1px;
	color: var(--c-primary);
}
.brand-logo {
	height: 34px;
	width: auto;
	display: block;
	/* logo 自身是蓝底白字，在白底 header 上直接显示 */
}
/* footer 等深色背景下的 logo：蓝底白字 logo 在深色背景上会糊，
   给它套一个白色半透明底板，保持品牌色识别度 */
.brand-logo-on-dark {
	height: 34px;
	width: auto;
	padding: 6px 10px;
	background: rgba(255, 255, 255, 0.95);
	border-radius: 4px;
}
.brand-text {
	/* logo 自带文字时，隐藏品牌名文本，避免重复 */
	position: absolute;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip: rect(0 0 0 0);
	clip-path: inset(50%);
	white-space: nowrap;
}
.nav {
	display: flex;
	align-items: center;
	gap: 4px;
}
.nav a {
	padding: 8px 16px;
	font-size: 15px;
	font-weight: 500;
	color: var(--c-text-light);
	border-radius: var(--radius);
}
.nav a:hover,
.nav a.active {
	color: var(--c-primary);
	background: var(--c-bg-alt);
}
.nav-actions {
	display: flex;
	align-items: center;
	gap: 12px;
}
.lang-toggle {
	padding: 6px 12px;
	font-size: 13px;
	font-weight: 600;
	color: var(--c-primary);
	border: 1px solid var(--c-border);
	border-radius: var(--radius);
	transition: var(--transition);
}
.lang-toggle:hover {
	border-color: var(--c-primary);
	background: var(--c-bg-alt);
}
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	padding: 10px 22px;
	font-size: 14px;
	font-weight: 600;
	border-radius: var(--radius);
	transition: var(--transition);
	white-space: nowrap;
}
.btn-primary {
	background: var(--c-accent);
	color: var(--c-white);
	box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3);
}
.btn-primary:hover {
	background: var(--c-accent-dark);
	transform: translateY(-1px);
	box-shadow: 0 6px 16px rgba(217, 119, 6, 0.4);
}
.btn-outline {
	background: transparent;
	color: var(--c-white);
	border: 2px solid rgba(255, 255, 255, 0.7);
}
.btn-outline:hover {
	background: rgba(255, 255, 255, 0.1);
	border-color: var(--c-white);
}
.btn-ghost {
	background: var(--c-bg-alt);
	color: var(--c-primary);
}
.btn-ghost:hover {
	background: var(--c-border-light);
}
.btn-lg {
	padding: 14px 32px;
	font-size: 16px;
}

.mobile-toggle {
	display: none;
	font-size: 26px;
	color: var(--c-primary);
	padding: 4px 8px;
}

/* ============ Main ============ */
main {
	padding-top: var(--header-h);
	min-height: 100vh;
}

/* ============ Hero ============ */
.hero {
	position: relative;
	background: linear-gradient(
		135deg,
		var(--c-primary-dark) 0%,
		var(--c-primary) 50%,
		var(--c-primary-light) 100%
	);
	color: var(--c-white);
	padding: 100px 0 120px;
	overflow: hidden;
}
.hero::before {
	content: '';
	position: absolute;
	inset: 0;
	background-image:
		radial-gradient(
			circle at 20% 30%,
			rgba(217, 119, 6, 0.15) 0%,
			transparent 40%
		),
		radial-gradient(
			circle at 80% 70%,
			rgba(30, 58, 95, 0.4) 0%,
			transparent 50%
		);
	pointer-events: none;
}
.hero::after {
	content: '';
	position: absolute;
	inset: 0;
	background-image:
		linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
		linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
	background-size: 50px 50px;
	pointer-events: none;
}
.hero-content {
	position: relative;
	z-index: 1;
	max-width: 760px;
}
.hero-kicker {
	display: inline-block;
	padding: 6px 14px;
	background: rgba(217, 119, 6, 0.2);
	color: var(--c-accent-light);
	border: 1px solid rgba(217, 119, 6, 0.4);
	border-radius: 20px;
	font-size: 13px;
	font-weight: 600;
	letter-spacing: 1px;
	text-transform: uppercase;
	margin-bottom: 24px;
}
.hero h1 {
	font-size: 52px;
	line-height: 1.15;
	font-weight: 800;
	margin-bottom: 18px;
	letter-spacing: -0.5px;
}
.hero h1 span {
	color: var(--c-accent-light);
}
.hero-subtitle {
	font-size: 18px;
	color: rgba(255, 255, 255, 0.85);
	margin-bottom: 36px;
	max-width: 620px;
}
.hero-actions {
	display: flex;
	gap: 16px;
	flex-wrap: wrap;
}

/* ============ Stats ============ */
.stats {
	background: var(--c-white);
	border-bottom: 1px solid var(--c-border-light);
	padding: 56px 0;
}
.stats-grid {
	display: grid;
	grid-template-columns: repeat(5, 1fr);
	gap: 24px;
}
.stat {
	text-align: center;
}
.stat-num {
	font-size: 40px;
	font-weight: 800;
	color: var(--c-primary);
	line-height: 1;
	margin-bottom: 8px;
}
.stat-num span {
	font-size: 22px;
	color: var(--c-accent);
	margin-left: 2px;
}
.stat-label {
	font-size: 14px;
	color: var(--c-muted);
	font-weight: 500;
}

/* ============ Section ============ */
.section {
	padding: 80px 0;
}
.section-alt {
	background: var(--c-bg-alt);
}
.section-header {
	text-align: center;
	max-width: 720px;
	margin: 0 auto 56px;
}
.section-title {
	font-size: 36px;
	font-weight: 800;
	color: var(--c-primary);
	margin-bottom: 14px;
	letter-spacing: -0.3px;
}
.section-sub {
	font-size: 16px;
	color: var(--c-text-light);
}
.section-title .accent {
	color: var(--c-accent);
}

/* ============ Product grid ============ */
.series-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}
.series-card {
	background: var(--c-white);
	border: 1px solid var(--c-border-light);
	border-radius: var(--radius-lg);
	overflow: hidden;
	transition: var(--transition);
	cursor: pointer;
	display: flex;
	flex-direction: column;
}
.series-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow-hover);
	border-color: var(--c-accent);
}
.series-card-img {
	height: 180px;
	background: linear-gradient(
		135deg,
		var(--c-primary) 0%,
		var(--c-primary-light) 100%
	);
	position: relative;
	overflow: hidden;
}
.series-card-img img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	opacity: 0.85;
}
.series-card-img::after {
	content: '';
	position: absolute;
	inset: 0;
	background: linear-gradient(
		to top,
		rgba(10, 37, 64, 0.5) 0%,
		transparent 60%
	);
}
.series-card-tag {
	position: absolute;
	top: 12px;
	left: 12px;
	z-index: 2;
	padding: 4px 10px;
	background: var(--c-accent);
	color: var(--c-white);
	border-radius: 4px;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.5px;
}
.series-card-body {
	padding: 22px;
	flex: 1;
	display: flex;
	flex-direction: column;
}
.series-card-code {
	font-size: 13px;
	font-weight: 700;
	color: var(--c-accent);
	letter-spacing: 1px;
	margin-bottom: 6px;
}
.series-card-name {
	font-size: 18px;
	font-weight: 700;
	color: var(--c-primary);
	margin-bottom: 10px;
	line-height: 1.4;
}
.series-card-intro {
	font-size: 14px;
	color: var(--c-text-light);
	line-height: 1.6;
	flex: 1;
	margin-bottom: 16px;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.series-card-meta {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding-top: 14px;
	border-top: 1px solid var(--c-border-light);
	font-size: 13px;
	color: var(--c-muted);
}
.series-card-meta .count {
	color: var(--c-primary);
	font-weight: 600;
}

/* ============ App grid ============ */
.app-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 20px;
}
.app-card {
	background: var(--c-white);
	padding: 28px 22px;
	border-radius: var(--radius-lg);
	border: 1px solid var(--c-border-light);
	transition: var(--transition);
	text-align: left;
}
.app-card:hover {
	transform: translateY(-3px);
	box-shadow: var(--shadow);
	border-color: var(--c-accent-light);
}
.app-icon {
	font-size: 36px;
	margin-bottom: 14px;
}
.app-title {
	font-size: 17px;
	font-weight: 700;
	color: var(--c-primary);
	margin-bottom: 8px;
}
.app-desc {
	font-size: 13px;
	color: var(--c-text-light);
	line-height: 1.6;
	margin-bottom: 12px;
}
.app-series {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}
.app-series span {
	font-size: 11px;
	font-weight: 600;
	color: var(--c-accent);
	background: rgba(217, 119, 6, 0.08);
	padding: 2px 8px;
	border-radius: 10px;
}

/* ============ About preview ============ */
.about-preview {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 56px;
	align-items: center;
}
.about-text p {
	font-size: 15px;
	color: var(--c-text-light);
	line-height: 1.85;
	margin-bottom: 18px;
}
.about-text .btn {
	margin-top: 8px;
}
.about-visual {
	position: relative;
	border-radius: var(--radius-lg);
	overflow: hidden;
	box-shadow: var(--shadow-lg);
}
.about-visual img {
	width: 100%;
	height: 380px;
	object-fit: cover;
}
.about-badges {
	display: flex;
	gap: 16px;
	margin-top: 24px;
}
.about-badge {
	flex: 1;
	padding: 14px;
	background: var(--c-white);
	border: 1px solid var(--c-border-light);
	border-radius: var(--radius);
	text-align: center;
}
.about-badge .b-icon {
	font-size: 22px;
	margin-bottom: 6px;
}
.about-badge .b-text {
	font-size: 12px;
	color: var(--c-text-light);
	font-weight: 500;
	line-height: 1.4;
}

/* ============ CTA ============ */
.cta-band {
	background: linear-gradient(
		135deg,
		var(--c-primary) 0%,
		var(--c-primary-dark) 100%
	);
	color: var(--c-white);
	padding: 70px 0;
	position: relative;
	overflow: hidden;
}
.cta-band::before {
	content: '';
	position: absolute;
	inset: 0;
	background-image: radial-gradient(
		circle at 80% 20%,
		rgba(217, 119, 6, 0.2) 0%,
		transparent 50%
	);
}
.cta-inner {
	position: relative;
	z-index: 1;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 32px;
}
.cta-text h2 {
	font-size: 30px;
	font-weight: 800;
	margin-bottom: 10px;
}
.cta-text p {
	font-size: 16px;
	color: rgba(255, 255, 255, 0.85);
}

/* ============ Page header (interior) ============ */
.page-header {
	background: linear-gradient(
		135deg,
		var(--c-primary) 0%,
		var(--c-primary-light) 100%
	);
	color: var(--c-white);
	padding: 60px 0 50px;
	position: relative;
}
.page-header::before {
	content: '';
	position: absolute;
	inset: 0;
	background-image: radial-gradient(
		circle at 90% 30%,
		rgba(217, 119, 6, 0.15) 0%,
		transparent 50%
	);
}
.page-header-inner {
	position: relative;
	z-index: 1;
}
.page-title {
	font-size: 38px;
	font-weight: 800;
	margin-bottom: 10px;
}
.page-sub {
	font-size: 16px;
	color: rgba(255, 255, 255, 0.85);
}
.breadcrumb {
	font-size: 13px;
	color: rgba(255, 255, 255, 0.7);
	margin-bottom: 16px;
}
.breadcrumb a:hover {
	color: var(--c-accent-light);
}
.breadcrumb span.sep {
	margin: 0 8px;
}

/* ============ Series detail ============ */
.series-detail {
	padding: 56px 0 80px;
}
.series-banner {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 48px;
	align-items: center;
	margin-bottom: 56px;
}
.series-banner-img {
	border-radius: var(--radius-lg);
	overflow: hidden;
	box-shadow: var(--shadow);
	height: 320px;
}
.series-banner-img img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}
.series-banner-text h2 {
	font-size: 30px;
	color: var(--c-primary);
	margin-bottom: 14px;
	font-weight: 800;
}
.series-banner-text p {
	font-size: 15px;
	color: var(--c-text-light);
	line-height: 1.85;
	margin-bottom: 20px;
}
.models-list-title {
	font-size: 22px;
	color: var(--c-primary);
	margin: 40px 0 20px;
	font-weight: 700;
}
.models-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 20px;
}
.model-card {
	background: var(--c-white);
	border: 1px solid var(--c-border-light);
	border-radius: var(--radius-lg);
	padding: 24px;
	transition: var(--transition);
	cursor: pointer;
	overflow: hidden;
	display: flex;
	flex-direction: column;
}
.model-card.has-image {
	padding: 0;
}
.model-card-image {
	width: 100%;
	aspect-ratio: 4 / 3;
	background: linear-gradient(180deg, #f7f9fc 0%, #eef2f7 100%);
	overflow: hidden;
	border-bottom: 1px solid var(--c-border-light);
}
.model-card-image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform 0.4s ease;
}
.model-card.has-image:hover .model-card-image img {
	transform: scale(1.03);
}
.model-card.has-image .model-card-code,
.model-card.has-image .model-card-name,
.model-card.has-image .model-card-desc,
.model-card.has-image .model-card-tags {
	padding-left: 22px;
	padding-right: 22px;
}
.model-card.has-image .model-card-code {
	padding-top: 18px;
	padding-bottom: 0;
	margin-bottom: 6px;
}
.model-card.has-image .model-card-name {
	padding-top: 0;
}
.model-card.has-image .model-card-tags {
	padding-bottom: 20px;
}
.model-card:hover {
	transform: translateY(-3px);
	box-shadow: var(--shadow);
	border-color: var(--c-accent);
}
.model-card-code {
	display: inline-block;
	font-family: var(--font-mono);
	font-weight: 700;
	font-size: 18px;
	color: var(--c-accent);
	letter-spacing: 1px;
	margin-bottom: 8px;
}
.model-card-name {
	font-size: 15px;
	color: var(--c-primary);
	font-weight: 600;
	margin-bottom: 10px;
}
.model-card-desc {
	font-size: 13px;
	color: var(--c-text-light);
	line-height: 1.6;
	margin-bottom: 14px;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.model-card-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}
.model-card-tags span {
	font-size: 11px;
	color: var(--c-primary);
	background: var(--c-bg-alt);
	padding: 3px 8px;
	border-radius: 4px;
	font-weight: 500;
}

/* ============ Model detail ============ */
.model-detail {
	padding: 40px 0 80px;
}
.model-head {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 24px;
	padding-bottom: 28px;
	border-bottom: 2px solid var(--c-border-light);
	margin-bottom: 36px;
}
.model-head.has-image {
	gap: 36px;
}
.model-head-image {
	flex: 0 0 360px;
	max-width: 360px;
	width: 100%;
	aspect-ratio: 4 / 3;
	background: linear-gradient(180deg, #f7f9fc 0%, #eef2f7 100%);
	border: 1px solid var(--c-border-light);
	border-radius: var(--radius-lg);
	overflow: hidden;
}
.model-head-image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}
.model-head-info {
	flex: 1 1 auto;
	min-width: 0;
}
.model-head-cta {
	margin-top: 18px;
	display: inline-flex;
	align-items: center;
}
.model-head-info h1 {
	font-size: 32px;
	color: var(--c-primary);
	margin-bottom: 8px;
	font-weight: 800;
}
.model-head-info .code {
	font-family: var(--font-mono);
	font-size: 16px;
	color: var(--c-accent);
	font-weight: 700;
	letter-spacing: 1.5px;
	margin-bottom: 14px;
}
.model-head-info .desc {
	font-size: 14px;
	color: var(--c-text-light);
	max-width: 720px;
	line-height: 1.8;
}

.model-section {
	margin-bottom: 40px;
}
.model-section h3 {
	font-size: 20px;
	color: var(--c-primary);
	margin-bottom: 18px;
	font-weight: 700;
	padding-left: 12px;
	border-left: 4px solid var(--c-accent);
}
.highlight-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
}
.highlight-tags span {
	padding: 6px 14px;
	background: rgba(217, 119, 6, 0.1);
	color: var(--c-accent-dark);
	border-radius: 20px;
	font-size: 13px;
	font-weight: 600;
}
.app-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}
.app-tags span {
	padding: 5px 12px;
	background: var(--c-bg-alt);
	color: var(--c-text);
	border-radius: 4px;
	font-size: 13px;
	border: 1px solid var(--c-border-light);
}

/* spec table */
.spec-table {
	width: 100%;
	border-collapse: collapse;
	background: var(--c-white);
	border: 1px solid var(--c-border-light);
	border-radius: var(--radius-lg);
	overflow: hidden;
}
.spec-table th,
.spec-table td {
	padding: 12px 18px;
	text-align: left;
	border-bottom: 1px solid var(--c-border-light);
}
.spec-table th {
	background: var(--c-bg-alt);
	font-weight: 600;
	color: var(--c-primary);
	width: 38%;
	font-size: 14px;
}
.spec-table td {
	font-size: 14px;
	color: var(--c-text);
	font-family: var(--font-sans);
}
.spec-table tr:last-child th,
.spec-table tr:last-child td {
	border-bottom: none;
}
.spec-table tr:hover {
	background: var(--c-bg-alt);
}

/* compare table */
.compare-wrap {
	overflow-x: auto;
	border-radius: var(--radius-lg);
	border: 1px solid var(--c-border-light);
}
.compare-table {
	width: 100%;
	border-collapse: collapse;
	min-width: 600px;
}
.compare-table th,
.compare-table td {
	padding: 10px 14px;
	border-bottom: 1px solid var(--c-border-light);
	border-right: 1px solid var(--c-border-light);
	font-size: 13px;
	text-align: center;
}
.compare-table thead th {
	background: var(--c-primary);
	color: var(--c-white);
	font-weight: 700;
	position: sticky;
	top: 0;
}
.compare-table thead th:first-child {
	background: var(--c-primary-dark);
	text-align: left;
}
.compare-table tbody th {
	background: var(--c-bg-alt);
	text-align: left;
	color: var(--c-primary);
	font-weight: 600;
}
.compare-table tbody tr:hover td {
	background: rgba(217, 119, 6, 0.04);
}
.compare-table .param-name {
	text-align: left;
	white-space: nowrap;
}

.packaging-box {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 16px;
}
.packaging-item {
	background: var(--c-bg-alt);
	padding: 18px;
	border-radius: var(--radius);
	border-left: 3px solid var(--c-accent);
}
.packaging-item .label {
	font-size: 12px;
	color: var(--c-muted);
	margin-bottom: 6px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}
.packaging-item .value {
	font-size: 14px;
	color: var(--c-text);
	font-weight: 600;
}

/* ============ Contact ============ */
.contact-wrap {
	padding: 60px 0 80px;
}

/* 联系方式大卡片网格（替代原表单）*/
.contact-cards {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 20px;
	margin-bottom: 32px;
}
.contact-card {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	padding: 28px 24px;
	background: var(--c-white);
	border: 1px solid var(--c-border-light);
	border-radius: var(--radius-lg);
	transition: var(--transition);
	text-decoration: none;
	color: var(--c-text);
	position: relative;
	overflow: hidden;
}
.contact-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 3px;
	background: var(--c-accent);
	transform: scaleX(0);
	transform-origin: left;
	transition: transform 0.3s ease;
}
.contact-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow-hover);
	border-color: var(--c-accent-light);
}
.contact-card:hover::before {
	transform: scaleX(1);
}
.contact-card-phone::before {
	background: #059669;
}
.contact-card-phone:hover {
	border-color: #059669;
}
.contact-card-email::before {
	background: var(--c-accent);
}
.contact-card-web::before {
	background: var(--c-primary);
}
.contact-card-web:hover {
	border-color: var(--c-primary);
}
.cc-icon {
	font-size: 32px;
	margin-bottom: 14px;
}
.cc-label {
	font-size: 12px;
	color: var(--c-muted);
	margin-bottom: 6px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	font-weight: 600;
}
.cc-value {
	font-size: 17px;
	color: var(--c-primary);
	font-weight: 700;
	margin-bottom: 4px;
	word-break: break-all;
	line-height: 1.4;
}
.cc-value-addr {
	font-size: 14px;
	font-weight: 500;
	color: var(--c-text);
	line-height: 1.6;
}
.cc-sub {
	font-size: 13px;
	color: var(--c-text-light);
	margin-bottom: 12px;
}
.cc-action {
	margin-top: auto;
	padding-top: 12px;
	font-size: 13px;
	color: var(--c-accent);
	font-weight: 600;
}
.contact-card-phone .cc-action {
	color: #059669;
}
.contact-card-web .cc-action {
	color: var(--c-primary);
}
.contact-card-addr .cc-action {
	display: none;
}

/* 微信卡片专属：二维码缩略图 */
.contact-card-wechat {
	cursor: pointer;
}
.contact-card-wechat::before {
	background: #07c160;
} /* 微信绿 */
.contact-card-wechat:hover {
	border-color: #07c160;
}
.contact-card-wechat .cc-action {
	color: #07c160;
}
.cc-qr-thumb {
	width: 100%;
	margin: 8px 0;
	display: flex;
	justify-content: center;
}
.cc-qr-thumb img {
	width: 100%;
	max-width: 140px;
	height: auto;
	border-radius: var(--radius);
	border: 1px solid var(--c-border-light);
}

/* 二维码大图模态框 */
.qr-modal {
	position: fixed;
	inset: 0;
	z-index: 9999;
	background: rgba(10, 37, 64, 0.85);
	backdrop-filter: blur(4px);
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 24px;
	animation: qrFadeIn 0.2s ease;
}
@keyframes qrFadeIn {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}
.qr-modal-inner {
	position: relative;
	background: var(--c-white);
	padding: 32px 32px 24px;
	border-radius: var(--radius-lg);
	max-width: 90vw;
	text-align: center;
	box-shadow: var(--shadow-lg);
	animation: qrZoomIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes qrZoomIn {
	from {
		transform: scale(0.85);
		opacity: 0;
	}
	to {
		transform: scale(1);
		opacity: 1;
	}
}
.qr-modal-inner img {
	width: 320px;
	max-width: 80vw;
	height: auto;
	border-radius: var(--radius);
	display: block;
	margin: 0 auto;
}
.qr-modal-close {
	position: absolute;
	top: 8px;
	right: 12px;
	font-size: 28px;
	line-height: 1;
	color: var(--c-muted);
	width: 32px;
	height: 32px;
	border-radius: 50%;
	transition: var(--transition);
	cursor: pointer;
}
.qr-modal-close:hover {
	color: var(--c-text);
	background: var(--c-bg-alt);
}
.qr-modal-tip {
	margin-top: 16px;
	font-size: 14px;
	color: var(--c-text-light);
	font-weight: 500;
}

/* 邮箱操作模态框 */
.email-modal-inner {
	padding: 32px 32px 28px;
	max-width: 420px;
}
.email-display-row {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 10px;
	margin: 8px 0 4px;
}
.email-display {
	font-size: 17px;
	font-weight: 700;
	color: var(--c-primary);
	font-family: var(--font-mono);
	letter-spacing: 0.5px;
}
.btn-sm {
	padding: 6px 14px;
	font-size: 13px;
}
.copy-tip {
	min-height: 18px;
	font-size: 12px;
	color: var(--c-success);
	opacity: 0;
	transition: opacity 0.2s;
	text-align: center;
	margin-bottom: 8px;
}
.email-hint {
	font-size: 12px;
	color: var(--c-muted);
	text-align: center;
	margin-bottom: 14px;
	padding: 8px;
	background: var(--c-bg-alt);
	border-radius: var(--radius);
}
.email-actions {
	display: flex;
	flex-direction: column;
	gap: 10px;
	margin-top: 8px;
}
.email-action-btn {
	width: 100%;
	justify-content: center;
	padding: 11px 18px;
}

/* 工作时间提示条 */
.contact-hours {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 10px;
	padding: 18px 24px;
	background: var(--c-bg-alt);
	border-radius: var(--radius);
	border-left: 3px solid var(--c-accent);
	font-size: 14px;
	color: var(--c-text-light);
}
.ch-icon {
	font-size: 18px;
}

.contact-grid {
	display: grid;
	grid-template-columns: 1fr 1.2fr;
	gap: 48px;
}
.contact-info-card {
	background: var(--c-white);
	padding: 32px;
	border-radius: var(--radius-lg);
	border: 1px solid var(--c-border-light);
	box-shadow: var(--shadow-sm);
}
.contact-item {
	display: flex;
	gap: 14px;
	margin-bottom: 22px;
}
.contact-item:last-child {
	margin-bottom: 0;
}
.contact-item .ci-icon {
	width: 42px;
	height: 42px;
	flex-shrink: 0;
	background: var(--c-bg-alt);
	border-radius: var(--radius);
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 18px;
}
.contact-item .ci-label {
	font-size: 12px;
	color: var(--c-muted);
	margin-bottom: 4px;
}
.contact-item .ci-value {
	font-size: 14px;
	color: var(--c-text);
	font-weight: 500;
	word-break: break-all;
}

.inquiry-form {
	background: var(--c-white);
	padding: 32px;
	border-radius: var(--radius-lg);
	border: 1px solid var(--c-border-light);
	box-shadow: var(--shadow-sm);
}
.form-row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
	margin-bottom: 16px;
}
.form-group {
	margin-bottom: 16px;
}
.form-group label {
	display: block;
	font-size: 13px;
	color: var(--c-text-light);
	margin-bottom: 6px;
	font-weight: 500;
}
.form-group input,
.form-group textarea,
.form-group select {
	width: 100%;
	padding: 10px 14px;
	font-size: 14px;
	font-family: inherit;
	border: 1px solid var(--c-border);
	border-radius: var(--radius);
	background: var(--c-white);
	color: var(--c-text);
	transition: var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
	outline: none;
	border-color: var(--c-accent);
	box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}
.form-group textarea {
	resize: vertical;
	min-height: 100px;
}

/* ---------- Product multi-select picker ---------- */
.product-picker {
	margin-bottom: 16px;
}
.product-picker > label {
	display: block;
	font-size: 13px;
	color: var(--c-text-light);
	margin-bottom: 6px;
	font-weight: 500;
}
.product-picker-hint {
	font-size: 11px;
	color: var(--c-muted);
	margin-bottom: 10px;
}
.product-picker-groups {
	max-height: 280px;
	overflow-y: auto;
	border: 1px solid var(--c-border);
	border-radius: var(--radius);
	padding: 10px;
	background: var(--c-bg-alt);
}
.pp-group {
	margin-bottom: 14px;
}
.pp-group:last-child {
	margin-bottom: 0;
}
.pp-group-title {
	font-size: 12px;
	font-weight: 700;
	color: var(--c-accent);
	letter-spacing: 0.5px;
	margin-bottom: 8px;
	padding-bottom: 4px;
	border-bottom: 1px solid var(--c-border-light);
}
.pp-group-options {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
	gap: 6px;
}
.pp-option {
	display: flex;
	align-items: center;
	gap: 6px;
	padding: 6px 10px;
	background: var(--c-white);
	border: 1px solid var(--c-border-light);
	border-radius: var(--radius);
	cursor: pointer;
	transition: var(--transition);
	font-size: 12px;
}
.pp-option:hover {
	border-color: var(--c-accent-light);
	background: rgba(217, 119, 6, 0.04);
}
.pp-option input[type='checkbox'] {
	width: 14px;
	height: 14px;
	margin: 0;
	accent-color: var(--c-accent);
	cursor: pointer;
}
.pp-option:has(input:checked) {
	border-color: var(--c-accent);
	background: rgba(217, 119, 6, 0.1);
}
.pp-option:has(input:checked) .pp-option-label {
	color: var(--c-accent-dark);
	font-weight: 600;
}
.pp-option-label {
	font-family: var(--font-mono);
	color: var(--c-text);
}

.form-note {
	font-size: 12px;
	color: var(--c-muted);
	margin-top: 12px;
}
.form-success {
	padding: 14px 18px;
	background: rgba(5, 150, 105, 0.1);
	color: var(--c-success);
	border-radius: var(--radius);
	margin-bottom: 16px;
	font-size: 14px;
	font-weight: 500;
	border: 1px solid rgba(5, 150, 105, 0.3);
}
.form-error {
	padding: 14px 18px;
	background: rgba(220, 38, 38, 0.08);
	color: #dc2626;
	border-radius: var(--radius);
	margin-bottom: 16px;
	font-size: 14px;
	font-weight: 500;
	border: 1px solid rgba(220, 38, 38, 0.3);
}
.btn:disabled {
	opacity: 0.6;
	cursor: not-allowed;
}

/* ============ Footer ============ */
.site-footer {
	background: var(--c-primary-dark);
	color: rgba(255, 255, 255, 0.7);
	padding: 56px 0 24px;
}
.footer-grid {
	display: grid;
	grid-template-columns: 2fr 1.5fr 1fr 1.1fr;
	gap: 40px;
	padding-bottom: 32px;
	border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .brand {
	color: var(--c-white);
	margin-bottom: 14px;
}
.footer-brand p {
	font-size: 13px;
	line-height: 1.7;
}
.footer-col h4 {
	color: var(--c-white);
	font-size: 14px;
	font-weight: 700;
	margin-bottom: 16px;
	letter-spacing: 0.5px;
}
.footer-col ul li {
	margin-bottom: 8px;
}
.footer-col ul li a {
	font-size: 13px;
	color: rgba(255, 255, 255, 0.7);
}
.footer-col ul li a:hover {
	color: var(--c-accent-light);
}
.footer-bottom {
	padding-top: 24px;
	text-align: center;
	font-size: 12px;
	color: rgba(255, 255, 255, 0.5);
}
/* 单行布局：版权 + ICP + 公安备案 在同一行，居中，窄屏自动换行 */
.footer-bottom-inline {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	align-items: center;
	gap: 0;
}
.footer-bottom-inline > * {
	display: inline-flex;
	align-items: center;
}
.footer-icp {
	color: rgba(255, 255, 255, 0.3);
	margin: 0 4px;
}
.footer-icp-link {
	color: rgba(255, 255, 255, 0.6);
	transition: var(--transition);
}
.footer-icp-link:hover {
	color: var(--c-accent-light);
}

/* 公安备案链接（图标+文字水平排列，与版权行同排）*/
.footer-security-link {
	display: inline-flex;
	align-items: center;
	gap: 5px;
	color: rgba(255, 255, 255, 0.6);
	transition: var(--transition);
	font-size: 12px;
}
.footer-security-link:hover {
	color: var(--c-accent-light);
}
.footer-security-icon {
	height: 18px;
	width: auto;
	display: block;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
	.stats-grid {
		grid-template-columns: repeat(3, 1fr);
	}
	.series-grid,
	.app-grid {
		grid-template-columns: repeat(2, 1fr);
	}
	.models-grid {
		grid-template-columns: 1fr;
	}
	.contact-cards {
		grid-template-columns: repeat(2, 1fr);
	}
	.about-preview,
	.contact-grid,
	.series-banner {
		grid-template-columns: 1fr;
	}
	.footer-grid {
		grid-template-columns: 1fr 1fr;
	}
	.cta-inner {
		flex-direction: column;
		text-align: center;
	}
}
@media (max-width: 768px) {
	.container {
		padding: 0 16px;
	}
	.hero {
		padding: 70px 0 80px;
	}
	.hero h1 {
		font-size: 34px;
	}
	.hero-subtitle {
		font-size: 16px;
	}
	.stats-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 20px;
	}
	.section {
		padding: 56px 0;
	}
	.section-title {
		font-size: 28px;
	}
	.series-grid,
	.app-grid,
	.packaging-box,
	.contact-cards {
		grid-template-columns: 1fr;
	}
	.form-row {
		grid-template-columns: 1fr;
	}
	.footer-grid {
		grid-template-columns: 1fr;
		gap: 28px;
	}
	.nav,
	.nav-actions .btn {
		display: none;
	}
	.mobile-toggle {
		display: block;
	}
	.nav.open {
		display: flex;
		position: fixed;
		top: var(--header-h);
		left: 0;
		right: 0;
		flex-direction: column;
		background: var(--c-white);
		padding: 16px;
		border-bottom: 1px solid var(--c-border);
		box-shadow: var(--shadow-lg);
		gap: 4px;
	}
	.nav.open a {
		padding: 12px 16px;
	}
	.model-head {
		flex-direction: column;
	}
	.model-head-image {
		flex-basis: auto;
		max-width: 100%;
		width: 100%;
	}
	.stat-num {
		font-size: 32px;
	}
}

/* ============ Solutions ============ */
.sol-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 28px;
}
.sol-card {
	display: flex;
	flex-direction: column;
	background: var(--c-white);
	border: 1px solid var(--c-border-light);
	border-radius: var(--radius-lg);
	overflow: hidden;
	transition: var(--transition);
}
.sol-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow-lg);
	border-color: var(--c-primary);
}
.sol-card-img {
	aspect-ratio: 16/9;
	overflow: hidden;
	background: var(--c-bg-alt, #f5f7fa);
}
.sol-card-img img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.4s ease;
}
.sol-card:hover .sol-card-img img {
	transform: scale(1.04);
}
.sol-card-body {
	display: flex;
	flex-direction: column;
	gap: 10px;
	padding: 22px;
	flex: 1;
}
.sol-card-no {
	align-self: flex-start;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 1px;
	color: var(--c-primary);
	background: rgba(26, 60, 110, 0.08);
	border-radius: 999px;
	padding: 3px 12px;
}
.sol-card-title {
	font-size: 17px;
	line-height: 1.45;
	color: var(--c-text);
}
.sol-card-excerpt {
	font-size: 14px;
	line-height: 1.7;
	color: var(--c-text-light);
	flex: 1;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.sol-card-more {
	font-size: 14px;
	font-weight: 600;
	color: var(--c-primary);
}

/* ---- Solution article ---- */
.sol-article {
	max-width: 860px;
	margin: 0 auto;
}
.sol-figure {
	margin: 0 0 32px;
	border-radius: var(--radius-lg);
	overflow: hidden;
	box-shadow: var(--shadow);
}
.sol-figure img {
	width: 100%;
	display: block;
}
.sol-section {
	margin-bottom: 36px;
}
.sol-section h2 {
	font-size: 22px;
	color: var(--c-primary);
	margin-bottom: 14px;
	padding-left: 14px;
	border-left: 4px solid var(--c-primary);
	line-height: 1.4;
}
.sol-section p {
	font-size: 15.5px;
	line-height: 1.9;
	color: var(--c-text);
	margin-bottom: 12px;
}

/* ---- Solution contact card ---- */
.sol-contact {
	display: flex;
	align-items: center;
	gap: 32px;
	background: linear-gradient(135deg, #f4f7fb, #eaf1f9);
	border: 1px solid var(--c-border-light);
	border-radius: var(--radius-lg);
	padding: 32px;
	margin-top: 16px;
}
.sol-contact-img {
	flex: 0 0 260px;
}
.sol-contact-img img {
	width: 100%;
	border-radius: var(--radius);
	box-shadow: var(--shadow);
	display: block;
}
.sol-contact-body {
	flex: 1;
}
.sol-contact-body h3 {
	font-size: 22px;
	margin-bottom: 10px;
}
.sol-contact-body p {
	font-size: 15px;
	line-height: 1.8;
	color: var(--c-text-light);
	margin-bottom: 18px;
}
.sol-contact-links {
	display: flex;
	gap: 12px;
	flex-wrap: wrap;
}

@media (max-width: 960px) {
	.sol-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}
@media (max-width: 640px) {
	.sol-grid {
		grid-template-columns: 1fr;
	}
	.sol-contact {
		flex-direction: column;
		align-items: stretch;
	}
	.sol-contact-img {
		flex: none;
		max-width: 320px;
		margin: 0 auto;
	}
	.sol-section h2 {
		font-size: 19px;
	}
}