/**
 * Led 主样式表 v2.0.0
 *
 * 职责：
 * 1. 修正旧 reset.css 中非语义的字号设定（12px / 相对字号）
 * 2. 提供新模板的布局与组件样式
 * 3. 移动端优先的响应式实现
 *
 * 依赖：css/reset.css → style.css → css/basic.css → 本文件
 */

:root {
	--led-primary: #0a4d8c;
	--led-primary-rgb: 10, 77, 140;
	--led-primary-dark: #083c6d;
	--led-primary-light: rgba(10, 77, 140, .12);

	--led-text: #1f2933;
	--led-text-secondary: #52606d;
	--led-text-muted: #7b8794;
	--led-border: #e4e7eb;
	--led-bg: #ffffff;
	--led-bg-alt: #f5f7fa;
	--led-bg-dark: #1b2430;

	--led-radius: 4px;
	--led-shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04);
	--led-shadow-lg: 0 4px 12px rgba(0, 0, 0, .1);

	--led-container: 1400px;
	--led-gap: 24px;

	--led-font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

/* ============ 基础修正 ============ */
html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after {
		animation-duration: .01ms !important;
		transition-duration: .01ms !important;
	}
}

body {
	font-family: var(--led-font);
	font-size: 15px;
	line-height: 1.75;
	color: var(--led-text);
	background: var(--led-bg);
	overflow-x: hidden;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

body.nav-open { overflow: hidden; }

/* 语义化字号覆盖（修正 reset.css 的 100% 继承问题） */
h1, h2, h3, h4, h5, h6 {
	line-height: 1.35;
	color: var(--led-text);
	font-weight: 600;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.625rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.0625rem; }
h5 { font-size: .9375rem; }
h6 { font-size: .875rem; }

a {
	color: var(--led-primary);
	transition: color .2s ease;
}
a:hover { color: var(--led-primary-dark); }

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

button, input, select, textarea {
	font-family: inherit;
	font-size: inherit;
}

button { cursor: pointer; }

::selection {
	background: var(--led-primary);
	color: #fff;
}

:focus-visible {
	outline: 2px solid var(--led-primary);
	outline-offset: 2px;
}

/* ============ 无障碍 ============ */
.screen-reader-text {
	position: absolute !important;
	width: 1px; height: 1px;
	padding: 0; margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.skip-link {
	position: absolute;
	top: -60px;
	left: 0;
	z-index: 999999;
	padding: 12px 20px;
	background: var(--led-primary);
	color: #fff;
	transition: top .2s ease;
}
.skip-link:focus { top: 0; color: #fff; }

/* ============ 布局 ============ */
.main-container {
	width: 100%;
	max-width: var(--led-container);
	margin: 0 auto;
	padding: 0 20px;
}

.section { padding: 72px 0; }
.section--dark { background: var(--led-bg-dark); color: #fff; }

.section-header { margin-bottom: 40px; }
.section-header--center { text-align: center; }
.section-header__en {
	display: block;
	font-size: 13px;
	letter-spacing: 2px;
	color: var(--led-primary);
	margin-bottom: 6px;
	text-transform: uppercase;
}
.section-header__title {
	font-size: 1.875rem;
	margin: 0;
	font-weight: 700;
}
.section-header--light .section-header__title,
.section-header--light .section-header__en { color: #fff; }
.section-header--light .section-header__en { opacity: .7; }

.section-footer { text-align: center; margin-top: 40px; }
.section-empty { text-align: center; color: var(--led-text-muted); padding: 40px 0; }

/* ============ 按钮 ============ */
.btn {
	display: inline-block;
	padding: 12px 32px;
	border-radius: var(--led-radius);
	font-size: 15px;
	font-weight: 500;
	line-height: 1.4;
	text-align: center;
	transition: all .2s ease;
	border: 1px solid transparent;
}

.btn--primary {
	background: var(--led-primary);
	color: #fff;
}
.btn--primary:hover {
	background: var(--led-primary-dark);
	color: #fff;
}

.btn--outline {
	border-color: var(--led-primary);
	color: var(--led-primary);
	background: transparent;
}
.btn--outline:hover { background: var(--led-primary); color: #fff; }

.btn--light { border-color: #fff; color: #fff; background: transparent; }
.btn--light:hover { background: #fff; color: var(--led-primary); }

.btn--block { display: block; width: 100%; }

/* ============ 头部 ============ */
.site-header {
	position: sticky;
	top: 0;
	z-index: 1000;
	background: #fff;
	border-bottom: 1px solid var(--led-border);
	transition: transform .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled { box-shadow: var(--led-shadow); }
.site-header.is-hidden { transform: translateY(-100%); }

.site-header__inner {
	display: flex;
	align-items: center;
	gap: 32px;
	min-height: 80px;
}

.site-branding { flex-shrink: 0; }
.custom-logo-link { display: inline-block; }
.custom-logo { max-height: 48px; width: auto; }
.site-title { font-size: 1.375rem; font-weight: 700; color: var(--led-text); }

.main-navigation { flex: 1; }
.main-menu {
	display: flex;
	align-items: center;
	gap: 4px;
	list-style: none;
	margin: 0;
	padding: 0;
}
.main-menu > li { position: relative; }
.main-menu > li > a {
	display: block;
	padding: 0 16px;
	line-height: 80px;
	font-size: 15px;
	color: var(--led-text);
	position: relative;
}
.main-menu > li > a::after {
	content: '';
	position: absolute;
	left: 16px;
	right: 16px;
	bottom: 20px;
	height: 2px;
	background: var(--led-primary);
	transform: scaleX(0);
	transition: transform .25s ease;
}
.main-menu > li:hover > a,
.main-menu > li.current-menu-item > a,
.main-menu > li.current-menu-parent > a { color: var(--led-primary); }
.main-menu > li:hover > a::after,
.main-menu > li.current-menu-item > a::after,
.main-menu > li.current-menu-parent > a::after { transform: scaleX(1); }

/* 二级菜单 */
.main-menu .sub-menu {
	position: absolute;
	top: 100%;
	left: 0;
	min-width: 180px;
	background: #fff;
	box-shadow: var(--led-shadow-lg);
	border-radius: var(--led-radius);
	padding: 8px 0;
	list-style: none;
	margin: 0;
	opacity: 0;
	visibility: hidden;
	transform: translateY(8px);
	transition: all .22s ease;
	z-index: 100;
}
.main-menu li:hover > .sub-menu,
.main-menu li:focus-within > .sub-menu {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}
.main-menu .sub-menu a {
	display: block;
	padding: 10px 20px;
	font-size: 14px;
	color: var(--led-text);
	white-space: nowrap;
}
.main-menu .sub-menu a:hover {
	background: var(--led-primary-light);
	color: var(--led-primary);
}

.site-header__actions {
	display: flex;
	align-items: center;
	gap: 20px;
	flex-shrink: 0;
}

.header-search-toggle {
	background: none;
	border: 0;
	width: 20px;
	height: 20px;
	padding: 0;
	position: relative;
}
.header-search-toggle::before {
	content: '';
	position: absolute;
	inset: 0;
	background: currentColor;
	-webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 14h-.79l-.28-.27a6.5 6.5 0 1 0-.7.7l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E") center/contain no-repeat;
	mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 14h-.79l-.28-.27a6.5 6.5 0 1 0-.7.7l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E") center/contain no-repeat;
}

.header-tel { display: flex; align-items: center; gap: 8px; }
.header-tel__text { display: flex; flex-direction: column; line-height: 1.3; }
.header-tel__text small { font-size: 11px; color: var(--led-text-muted); }
.header-tel__text strong { font-size: 17px; color: var(--led-primary); font-weight: 700; }

/* 搜索面板 */
.header-search {
	border-top: 1px solid var(--led-border);
	padding: 20px 0;
	background: var(--led-bg-alt);
}

/* ============ 热门搜索条 ============ */
.hot-search-bar {
	background: var(--led-bg-alt);
	border-bottom: 1px solid var(--led-border);
	padding: 12px 0;
	font-size: 13px;
}
.hot-search-bar .main-container {
	display: flex;
	align-items: center;
	gap: 16px;
	flex-wrap: wrap;
}
.hot-search-bar__label { color: var(--led-text-muted); flex-shrink: 0; }
.hot-search-bar__links { display: flex; gap: 16px; flex-wrap: wrap; }
.hot-search-bar__links a { color: var(--led-text-secondary); }
.hot-search-bar__links a:hover { color: var(--led-primary); }

/* ============ 移动端 ============ */
.mobile-topbar { display: none; }

.mobile-toggle {
	width: 28px;
	height: 22px;
	background: none;
	border: 0;
	padding: 0;
	position: relative;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
}
.mobile-toggle__bar {
	display: block;
	width: 100%;
	height: 2px;
	background: currentColor;
	transition: transform .25s ease, opacity .2s ease;
}
.mobile-toggle[aria-expanded="true"] .mobile-toggle__bar:nth-child(1) { transform: translateY(10px) rotate(45deg); }
.mobile-toggle[aria-expanded="true"] .mobile-toggle__bar:nth-child(2) { opacity: 0; }
.mobile-toggle[aria-expanded="true"] .mobile-toggle__bar:nth-child(3) { transform: translateY(-10px) rotate(-45deg); }

.mobile-nav {
	position: fixed;
	inset: 0 0 0 auto;
	width: 82%;
	max-width: 340px;
	background: #fff;
	z-index: 10000;
	transform: translateX(100%);
	transition: transform .3s ease;
	overflow-y: auto;
	box-shadow: -4px 0 20px rgba(0, 0, 0, .1);
}
.mobile-nav.is-open { transform: translateX(0); }
.mobile-nav__panel { padding: 70px 20px 30px; }
.mobile-menu { list-style: none; margin: 0; padding: 0; }
.mobile-menu li { border-bottom: 1px solid var(--led-border); }
.mobile-menu a { display: block; padding: 14px 0; font-size: 15px; color: var(--led-text); }
.mobile-menu .sub-menu { list-style: none; padding-left: 16px; display: none; }
.mobile-menu .menu-item-has-children.is-expanded > .sub-menu { display: block; }
.mobile-nav__contact {
	margin-top: 24px;
	padding: 16px;
	background: var(--led-bg-alt);
	border-radius: var(--led-radius);
	font-size: 14px;
}
.mobile-nav__contact a { display: block; color: var(--led-primary); font-weight: 600; }

.mobile-nav-overlay {
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, .45);
	z-index: 9999;
	opacity: 0;
	transition: opacity .3s ease;
}
.mobile-nav-overlay.is-open { opacity: 1; }

/* ============ Banner ============ */
.home-banner { position: relative; background: var(--led-bg-dark); }
.home-banner__swiper { width: 100%; height: 560px; }
.home-banner__swiper .swiper-slide img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}
.home-banner__nav {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	width: 44px;
	height: 44px;
	border-radius: 50%;
	background: rgba(0, 0, 0, .35);
	border: 0;
	z-index: 10;
	transition: background .2s ease;
}
.home-banner__nav::before {
	content: '';
	position: absolute;
	inset: 0;
	background: #fff;
	-webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15.41 7.41L14 6l-6 6 6 6 1.41-1.41L10.83 12z'/%3E%3C/svg%3E") center/20px no-repeat;
	mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15.41 7.41L14 6l-6 6 6 6 1.41-1.41L10.83 12z'/%3E%3C/svg%3E") center/20px no-repeat;
}
.home-banner__nav:hover { background: var(--led-primary); }
.home-banner__nav--prev { left: 24px; }
.home-banner__nav--next { right: 24px; transform: translateY(-50%) rotate(180deg); }

/* 内页 Banner */
.page-banner {
	position: relative;
	background: var(--led-bg-dark);
	background-size: cover;
	background-position: center;
	min-height: 220px;
	display: flex;
	align-items: center;
}
.page-banner-bg { position: absolute; inset: 0; overflow: hidden; }
.page-banner-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .5; }
.page-banner-inner {
	position: relative;
	z-index: 1;
	padding: 40px 20px;
	text-align: center;
}
.page-banner-sub {
	color: rgba(255, 255, 255, .75);
	font-size: 13px;
	letter-spacing: 2px;
	text-transform: uppercase;
	margin-bottom: 6px;
}
.page-banner-title {
	color: #fff;
	font-size: 2rem;
	font-weight: 700;
	margin: 0;
}
.page-banner-desc { color: rgba(255, 255, 255, .8); margin: 8px 0 0; }

/* ============ 面包屑 ============ */
.breadcrumb { padding: 18px 0; font-size: 13px; }
.breadcrumb-list { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.breadcrumb-item { display: flex; align-items: center; gap: 8px; }
.breadcrumb-item + .breadcrumb-item::before {
	content: '/';
	color: var(--led-text-muted);
}
.breadcrumb a { color: var(--led-text-secondary); }
.breadcrumb-current { color: var(--led-text); }

/* ============ 首页搜索区 ============ */
.home-search { background: var(--led-bg-dark); padding: 44px 0; }
.home-search__inner {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 40px;
	align-items: center;
}
.home-search__title { color: #fff; font-size: 1.25rem; margin-bottom: 14px; }
.home-search__summary { color: rgba(255, 255, 255, .7); font-size: 13px; margin: 12px 0 0; }
.home-search__keywords h2 { display: none; }
.keyword-list { display: flex; flex-wrap: wrap; gap: 10px; }
.keyword-list a {
	display: inline-block;
	padding: 7px 16px;
	background: rgba(255, 255, 255, .08);
	border: 1px solid rgba(255, 255, 255, .15);
	border-radius: 30px;
	color: rgba(255, 255, 255, .85);
	font-size: 13px;
	transition: all .2s ease;
}
.keyword-list a:hover { background: var(--led-primary); border-color: var(--led-primary); color: #fff; }

/* ============ 搜索表单 ============ */
.led-search-form {
	display: flex;
	align-items: stretch;
	background: #fff;
	border-radius: var(--led-radius);
	overflow: hidden;
	height: 46px;
}
.led-search-form__input {
	flex: 1;
	border: 0;
	padding: 0 18px;
	font-size: 14px;
	outline: none;
	min-width: 0;
}
.led-search-form__submit {
	width: 52px;
	background: var(--led-primary);
	border: 0;
	position: relative;
	flex-shrink: 0;
}
.led-search-form__icon {
	position: absolute;
	inset: 0;
	margin: auto;
	width: 18px;
	height: 18px;
	background: #fff;
	-webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 14h-.79l-.28-.27a6.5 6.5 0 1 0-.7.7l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E") center/contain no-repeat;
	mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 14h-.79l-.28-.27a6.5 6.5 0 1 0-.7.7l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E") center/contain no-repeat;
}
.led-search-form__hp {
	position: absolute;
	left: -9999px;
	width: 1px;
	height: 1px;
	overflow: hidden;
}

/* ============ 卡片通用 ============ */
.article-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--led-gap);
}
.article-grid--list { grid-template-columns: repeat(3, 1fr); }

.article-card {
	background: #fff;
	border: 1px solid var(--led-border);
	border-radius: var(--led-radius);
	overflow: hidden;
	transition: box-shadow .25s ease, transform .25s ease;
	display: flex;
	flex-direction: column;
}
.article-card:hover { box-shadow: var(--led-shadow-lg); transform: translateY(-3px); }

.article-card__thumb { display: block; overflow: hidden; background: var(--led-bg-alt); }
.article-card__thumb img {
	width: 100%;
	height: 220px;
	object-fit: cover;
	transition: transform .4s ease;
}
.article-card:hover .article-card__thumb img { transform: scale(1.04); }

.article-card__body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.article-card__title { font-size: 1.0625rem; margin: 0 0 10px; line-height: 1.5; }
.article-card__title a { color: var(--led-text); }
.article-card__title a:hover { color: var(--led-primary); }
.article-card__excerpt {
	font-size: 14px;
	color: var(--led-text-secondary);
	margin: 0 0 14px;
	flex: 1;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.article-card__footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	font-size: 12px;
	color: var(--led-text-muted);
}
.article-card__cat { color: var(--led-primary); }

/* ============ 产品卡片 ============ */
.product-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--led-gap);
}
.product-card {
	background: #fff;
	border-radius: var(--led-radius);
	overflow: hidden;
	transition: box-shadow .25s ease, transform .25s ease;
}
.product-card:hover { box-shadow: var(--led-shadow-lg); transform: translateY(-3px); }
.product-card__thumb { display: block; background: #fff; padding: 20px; }
.product-card__thumb img { width: 100%; aspect-ratio: 1; object-fit: contain; transition: transform .35s ease; }
.product-card:hover .product-card__thumb img { transform: scale(1.05); }
.product-card__body { padding: 0 24px 24px; text-align: center; }
.product-card__title { font-size: 1.0625rem; margin: 0 0 8px; }
.product-card__title a { color: var(--led-text); }
.product-card__title a:hover { color: var(--led-primary); }
.product-card__excerpt {
	font-size: 13px;
	color: var(--led-text-secondary);
	margin: 0 0 12px;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.product-card__more { font-size: 13px; color: var(--led-primary); }

/* 产品分类 Tab */
.product-tabs { margin-bottom: 32px; }
.product-tabs ul {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	list-style: none;
	margin: 0;
	padding: 0;
	justify-content: center;
}
.product-tabs a {
	display: inline-block;
	padding: 8px 20px;
	border: 1px solid rgba(255, 255, 255, .2);
	border-radius: 30px;
	color: rgba(255, 255, 255, .8);
	font-size: 14px;
	transition: all .2s ease;
}
.product-tabs a:hover,
.product-tabs .is-active a {
	background: var(--led-primary);
	border-color: var(--led-primary);
	color: #fff;
}
.section:not(.section--product) .product-tabs a {
	border-color: var(--led-border);
	color: var(--led-text-secondary);
}
.section:not(.section--product) .product-tabs a:hover,
.section:not(.section--product) .product-tabs .is-active a {
	background: var(--led-primary);
	border-color: var(--led-primary);
	color: #fff;
}

/* ============ 应用领域 ============ */
.application-grid {
	display: grid;
	grid-template-columns: repeat(5, 1fr);
	gap: 20px;
	list-style: none;
	margin: 0;
	padding: 0;
}
.application-item a {
	display: block;
	background: #fff;
	border: 1px solid var(--led-border);
	border-radius: var(--led-radius);
	overflow: hidden;
	height: 100%;
	transition: all .25s ease;
}
.application-item a:hover { box-shadow: var(--led-shadow-lg); transform: translateY(-3px); }
.application-item__thumb { display: block; background: var(--led-bg-alt); }
.application-item__thumb img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.application-item__name {
	display: block;
	padding: 16px 16px 4px;
	font-size: 15px;
	font-weight: 600;
	color: var(--led-text);
	text-align: center;
}
.application-item__desc {
	display: block;
	padding: 0 16px 16px;
	font-size: 12px;
	color: var(--led-text-muted);
	text-align: center;
}

/* ============ AI 智能摘要 ============ */
.led-ai-summary {
	margin: 0 0 12px;
}
.led-ai-summary__label {
	display: inline-block;
	font-size: 11px;
	font-weight: 600;
	color: var(--led-primary);
	background: var(--led-primary-light);
	padding: 1px 7px;
	border-radius: 3px;
	margin-right: 6px;
	vertical-align: 1px;
	letter-spacing: .5px;
}
.led-ai-summary__text {
	font-size: 14px;
	color: var(--led-text-secondary);
	margin: 0;
}
.led-ai-summary--card {
	font-size: 13px;
	color: var(--led-text-secondary);
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
	flex: 1;
}
.led-ai-summary--card .led-ai-summary__label {
	margin-right: 4px;
}

/* ============ 合作品牌网格 ============ */
.brand-grid {
	display: grid;
	grid-template-columns: repeat(6, 1fr);
	gap: 24px 32px;
	list-style: none;
	margin: 0;
	padding: 0;
	align-items: center;
}
.brand-item a {
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 18px 12px;
	border: 1px solid var(--led-border);
	border-radius: var(--led-radius);
	background: #fff;
	transition: all .25s ease;
	height: 100%;
}
.brand-item a:hover {
	border-color: var(--led-primary);
	box-shadow: var(--led-shadow);
	transform: translateY(-2px);
}
.brand-item__thumb {
	max-width: 100%;
	max-height: 56px;
	width: auto;
	height: auto;
	object-fit: contain;
	filter: grayscale(100%);
	opacity: .7;
	transition: filter .25s ease, opacity .25s ease;
}
.brand-item a:hover .brand-item__thumb {
	filter: none;
	opacity: 1;
}
.brand-item__text {
	font-size: 15px;
	font-weight: 600;
	color: var(--led-text);
	text-align: center;
}

@media (max-width: 1200px) {
	.brand-grid { grid-template-columns: repeat(5, 1fr); }
}
@media (max-width: 1024px) {
	.brand-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 640px) {
	.brand-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
	.brand-item a { padding: 12px 8px; }
}

/* ============ 案例 ============ */
.section-case__layout {
	display: grid;
	grid-template-columns: 340px 1fr;
	gap: 40px;
	align-items: start;
}
.section-case__intro {
	background: var(--led-primary-dark);
	color: #fff;
	border-radius: var(--led-radius);
	padding: 40px 32px;
	background-size: cover;
	background-position: center;
}
.section-case__intro.has-bg { position: relative; }
.section-case__intro.has-bg::before {
	content: '';
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, rgba(0, 0, 0, .35), rgba(0, 0, 0, .65));
	border-radius: var(--led-radius);
}
.section-case__intro > * { position: relative; z-index: 1; }
.section-case__intro .section-header__en { color: rgba(255, 255, 255, .7); }
.section-case__intro .section-header__title { color: #fff; font-size: 1.5rem; }
.section-case__slogan { font-size: 14px; opacity: .85; margin: 12px 0 24px; }

.section-case__list ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.case-item a { display: flex; gap: 16px; align-items: center; }
.case-item__thumb { flex-shrink: 0; width: 110px; }
.case-item__thumb img { width: 110px; height: 82px; object-fit: cover; border-radius: var(--led-radius); }
.case-item__body { min-width: 0; }
.case-item__name {
	display: block;
	font-size: 15px;
	color: var(--led-text);
	margin-bottom: 4px;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}
.case-item a:hover .case-item__name { color: var(--led-primary); }
.case-item__desc {
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
	font-size: 13px;
	color: var(--led-text-muted);
}

/* ============ 优势 ============ */
.advantage-numbers {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 20px;
	text-align: center;
	margin: 0 0 48px;
}
.advantage-number dd {
	font-size: 2.75rem;
	font-weight: 700;
	color: #fff;
	line-height: 1.2;
}
.advantage-number dd em { font-style: normal; font-size: 1.5rem; opacity: .8; }
.advantage-number span { color: rgba(255, 255, 255, .65); font-size: 14px; }

.advantage-texts {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 24px;
}
.advantage-text {
	background: rgba(255, 255, 255, .05);
	border: 1px solid rgba(255, 255, 255, .1);
	border-radius: var(--led-radius);
	padding: 24px 20px;
}
.advantage-text h4 { color: #fff; font-size: 1.0625rem; margin: 0 0 10px; }
.advantage-text p { color: rgba(255, 255, 255, .7); font-size: 14px; margin: 0; }

/* ============ 关于 ============ */
.about-layout {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 48px;
	align-items: center;
}
.about-layout__slogan {
	font-size: 1.25rem;
	font-weight: 600;
	color: var(--led-primary);
	margin: 0 0 16px;
}
.about-layout__content { color: var(--led-text-secondary); margin-bottom: 24px; }
.about-layout__facts {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 16px;
	padding: 20px;
	background: var(--led-bg-alt);
	border-radius: var(--led-radius);
	margin: 0 0 24px;
}
.about-layout__facts dt { font-size: 12px; color: var(--led-text-muted); margin-bottom: 3px; }
.about-layout__facts dd { margin: 0; font-size: 14px; font-weight: 600; }
.about-layout__media { position: relative; }
.about-media { border-radius: var(--led-radius); }
.about-media--1 { width: 100%; }
.about-media--2 {
	position: absolute;
	right: -16px;
	bottom: -24px;
	width: 55%;
	border: 5px solid #fff;
	box-shadow: var(--led-shadow-lg);
}

/* ============ 图文 / 图库 ============ */
.tuwen-layout {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 48px;
	align-items: center;
}
.tuwen-layout__content { color: var(--led-text-secondary); margin-bottom: 24px; }
.tuwen-layout__media img { width: 100%; border-radius: var(--led-radius); }

.gallery-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--led-gap);
	list-style: none;
	margin: 0;
	padding: 0;
}
.gallery-grid--archive { grid-template-columns: repeat(4, 1fr); }
.gallery-item { position: relative; }
.gallery-item a { display: block; position: relative; overflow: hidden; border-radius: var(--led-radius); }
.gallery-item img { width: 100%; aspect-ratio: 1; object-fit: cover; transition: transform .4s ease; }
.gallery-item a:hover img { transform: scale(1.06); }
.gallery-item__overlay {
	position: absolute;
	inset: 0;
	background: rgba(0, 0, 0, .55);
	display: flex;
	align-items: flex-end;
	padding: 18px;
	opacity: 0;
	transition: opacity .3s ease;
}
.gallery-item a:hover .gallery-item__overlay { opacity: 1; }
.gallery-item__title { color: #fff; font-size: 15px; line-height: 1.5; }

/* ============ 新闻 Tab ============ */
.news-tabs__nav,
.article-tabs__nav {
	display: flex;
	gap: 8px;
	border-bottom: 2px solid var(--led-border);
	margin-bottom: 28px;
	list-style: none;
	padding: 0;
	flex-wrap: wrap;
}
.news-tabs__btn,
.article-tabs__btn {
	background: none;
	border: 0;
	padding: 12px 24px;
	font-size: 16px;
	color: var(--led-text-secondary);
	position: relative;
	border-bottom: 2px solid transparent;
	margin-bottom: -2px;
	transition: color .2s ease;
}
.news-tabs__btn.is-active,
.article-tabs__btn.is-active { color: var(--led-primary); border-bottom-color: var(--led-primary); }

.news-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 32px; }
.news-list__item a { display: flex; gap: 16px; align-items: flex-start; }
.news-list__thumb { flex-shrink: 0; }
.news-list__thumb img { width: 120px; height: 90px; object-fit: cover; border-radius: var(--led-radius); }
.news-list__body { min-width: 0; flex: 1; }
.news-list__title {
	display: block;
	font-size: 15px;
	color: var(--led-text);
	margin-bottom: 4px;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}
.news-list__item a:hover .news-list__title { color: var(--led-primary); }
.news-list__excerpt {
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
	font-size: 13px;
	color: var(--led-text-muted);
	margin-bottom: 6px;
}
.news-list__date { font-size: 12px; color: var(--led-text-muted); }

/* ============ 归档布局 ============ */
.page-main { padding-bottom: 60px; }
.archive-layout {
	display: grid;
	grid-template-columns: 1fr 300px;
	gap: 40px;
	padding-bottom: 60px;
}
.archive-layout--no-sidebar { grid-template-columns: 1fr; }
.archive-description {
	background: var(--led-bg-alt);
	border-left: 3px solid var(--led-primary);
	padding: 18px 22px;
	margin-bottom: 28px;
	border-radius: var(--led-radius);
	color: var(--led-text-secondary);
	font-size: 14px;
}

.sidebox {
	background: #fff;
	border: 1px solid var(--led-border);
	border-radius: var(--led-radius);
	padding: 20px;
	margin-bottom: 24px;
}
.widget-title { font-size: 1.0625rem; margin: 0 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--led-border); }
.sidebox ul { list-style: none; margin: 0; padding: 0; }
.sidebox li { border-bottom: 1px dashed var(--led-border); }
.sidebox li:last-child { border-bottom: 0; }
.sidebox a { display: flex; justify-content: space-between; padding: 9px 0; font-size: 14px; color: var(--led-text-secondary); }
.sidebox a:hover { color: var(--led-primary); }
.sidebox .count { color: var(--led-text-muted); font-size: 12px; }

/* ============ 详情页 ============ */
.page-article { padding: 24px 0; }
.page-article__title {
	font-size: 1.875rem;
	font-weight: 700;
	margin: 0 0 28px;
	line-height: 1.4;
}
.page-article__content,
.post-single__content,
.entry-content {
	font-size: 15.5px;
	line-height: 1.9;
	color: var(--led-text);
}
.entry-content h2 { font-size: 1.5rem; margin: 36px 0 16px; padding-left: 12px; border-left: 4px solid var(--led-primary); }
.entry-content h3 { font-size: 1.1875rem; margin: 28px 0 12px; }
.entry-content p { margin-bottom: 18px; }
.entry-content ul, .entry-content ol { margin: 0 0 18px; padding-left: 24px; }
.entry-content ul { list-style: disc; }
.entry-content ol { list-style: decimal; }
.entry-content li { margin-bottom: 8px; }
.entry-content img { border-radius: var(--led-radius); margin: 8px 0; }
.entry-content a { text-decoration: underline; }
.entry-content blockquote {
	border-left: 4px solid var(--led-primary);
	background: var(--led-bg-alt);
	padding: 16px 20px;
	margin: 0 0 20px;
	color: var(--led-text-secondary);
}
.entry-content table { width: 100%; margin-bottom: 20px; }
.entry-content table th, .entry-content table td { border: 1px solid var(--led-border); padding: 10px 14px; }
.entry-content table th { background: var(--led-bg-alt); }

/* GEO：正文首段 */
.led-lede {
	font-size: 1.0625rem;
	color: var(--led-text-secondary);
	line-height: 1.85;
}

/* GEO：问答标题 */
.led-qa-q { position: relative; }

/* 文章详情 */
.post-single { max-width: 860px; margin: 0 auto; }
.post-single__header { margin-bottom: 28px; padding-bottom: 22px; border-bottom: 1px solid var(--led-border); }
.post-single__title { font-size: 2rem; font-weight: 700; margin: 0 0 16px; line-height: 1.4; }
.post-single__thumb { margin: 0 0 28px; }
.post-single__thumb img { width: 100%; border-radius: var(--led-radius); }
.post-single__thumb figcaption { font-size: 13px; color: var(--led-text-muted); text-align: center; margin-top: 8px; }

.post-meta {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 20px;
	font-size: 13px;
	color: var(--led-text-muted);
}
.led-review-badge { font-size: 12px; color: var(--led-text-muted); margin: 8px 0 0; }
.led-review-badge .label { color: var(--led-text-secondary); }
.led-review-badge .outdated { color: #b45309; }

.post-single__footer { margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--led-border); }
.post-single__tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 32px; }
.post-single__tags h2 { font-size: 1rem; margin: 0 8px 0 0; }
.post-single__tags a {
	display: inline-block;
	padding: 5px 14px;
	background: var(--led-bg-alt);
	border-radius: 30px;
	font-size: 13px;
}
.post-single__cta {
	background: var(--led-bg-dark);
	color: #fff;
	border-radius: var(--led-radius);
	padding: 32px;
	text-align: center;
}
.post-single__cta h2 { color: #fff; font-size: 1.25rem; margin: 0 0 8px; }
.post-single__cta p { color: rgba(255, 255, 255, .7); margin: 0 0 20px; font-size: 14px; }

/* 文章导航 */
.post-nav {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
	margin: 40px 0;
}
.post-nav__item {
	display: flex;
	flex-direction: column;
	gap: 6px;
	padding: 18px 20px;
	background: #fff;
	border: 1px solid var(--led-border);
	border-radius: var(--led-radius);
	transition: all .2s ease;
}
.post-nav__item:hover { border-color: var(--led-primary); box-shadow: var(--led-shadow); }
.post-nav__item--next { text-align: right; }
.post-nav__label { font-size: 12px; color: var(--led-text-muted); }
.post-nav__title { font-size: 14px; color: var(--led-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 相关推荐 */
.related-title { font-size: 1.375rem; margin: 48px 0 24px; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.related-item { border: 1px solid var(--led-border); border-radius: var(--led-radius); overflow: hidden; }
.related-thumb img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.related-name { font-size: 14px; padding: 14px; margin: 0; line-height: 1.5; }
.related-name a { color: var(--led-text); }
.related-name a:hover { color: var(--led-primary); }

/* ============ 产品详情 ============ */
.product-single__top {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 48px;
	padding: 32px 0 40px;
	border-bottom: 1px solid var(--led-border);
}
.product-gallery__main { width: 100%; height: 460px; background: var(--led-bg-alt); border-radius: var(--led-radius); overflow: hidden; }
.product-gallery__main .swiper-slide img { width: 100%; height: 100%; object-fit: contain; }
.product-gallery__thumbs { margin-top: 12px; height: 90px; }
.product-gallery__thumbs .swiper-slide { cursor: pointer; opacity: .6; transition: opacity .2s ease; }
.product-gallery__thumbs .swiper-slide-active { opacity: 1; }
.product-gallery__thumbs img { width: 100%; height: 90px; object-fit: cover; border-radius: var(--led-radius); }
.product-gallery__nav {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	width: 38px;
	height: 38px;
	border-radius: 50%;
	background: rgba(255, 255, 255, .9);
	border: 0;
	z-index: 10;
}
.product-gallery__nav--prev { left: 12px; }
.product-gallery__nav--next { right: 12px; transform: translateY(-50%) rotate(180deg); }

.product-single__title { font-size: 1.875rem; font-weight: 700; margin: 0 0 16px; line-height: 1.4; }
.product-single__quick { display: flex; flex-wrap: wrap; gap: 24px; margin-bottom: 18px; }
.product-single__quick dt { font-size: 12px; color: var(--led-text-muted); }
.product-single__quick dd { margin: 0; font-size: 15px; font-weight: 600; }
.product-single__summary {
	color: var(--led-text-secondary);
	margin-bottom: 24px;
	padding-bottom: 24px;
	border-bottom: 1px solid var(--led-border);
}
.product-single__specs { margin-bottom: 28px; }
.product-single__specs h2 { font-size: 1.0625rem; margin: 0 0 12px; }

/* 规格表 */
.led-spec-table { width: 100%; border: 1px solid var(--led-border); border-radius: var(--led-radius); overflow: hidden; }
.led-spec-table caption { text-align: left; padding: 10px 14px; font-size: 13px; color: var(--led-text-muted); }
.led-spec-table th,
.led-spec-table td { padding: 11px 16px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--led-border); }
.led-spec-table th { background: var(--led-bg-alt); font-weight: 600; color: var(--led-text-secondary); width: 34%; }
.led-spec-table tr:last-child th,
.led-spec-table tr:last-child td { border-bottom: 0; }

.product-single__cta { margin-top: 24px; }
.product-single__tel {
	display: block;
	text-align: center;
	margin-top: 14px;
	font-size: 1.375rem;
	font-weight: 700;
	color: var(--led-primary);
}
.product-single__note { font-size: 12px; color: var(--led-text-muted); text-align: center; margin: 8px 0 0; }
.product-single__detail { padding: 40px 0; }
.product-single__detail h2 { font-size: 1.5rem; margin: 0 0 20px; padding-left: 12px; border-left: 4px solid var(--led-primary); }
.product-single__faq { padding-bottom: 40px; }

/* ============ FAQ ============ */
.led-faq { margin: 0 0 40px; }
.led-faq-title { font-size: 1.5rem; margin: 0 0 20px; padding-left: 12px; border-left: 4px solid var(--led-primary); }
.led-faq-item {
	background: #fff;
	border: 1px solid var(--led-border);
	border-radius: var(--led-radius);
	margin-bottom: 12px;
	overflow: hidden;
}
.led-faq-q {
	padding: 16px 20px;
	font-size: 15px;
	font-weight: 600;
	cursor: pointer;
	display: flex;
	align-items: flex-start;
	gap: 12px;
	list-style: none;
	transition: background .2s ease;
}
.led-faq-q::-webkit-details-marker { display: none; }
.led-faq-q::after {
	content: '+';
	margin-left: auto;
	font-size: 20px;
	font-weight: 400;
	color: var(--led-primary);
	line-height: 1;
	flex-shrink: 0;
}
.led-faq-item[open] .led-faq-q::after { content: '−'; }
.led-faq-q:hover { background: var(--led-bg-alt); }
.led-faq-num {
	flex-shrink: 0;
	width: 26px;
	height: 26px;
	background: var(--led-primary-light);
	color: var(--led-primary);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 12px;
	font-weight: 700;
}
.led-faq-a { padding: 0 20px 18px 58px; color: var(--led-text-secondary); font-size: 14.5px; }
.led-faq-a p:last-child { margin-bottom: 0; }

.led-conclusion {
	background: rgba(10, 77, 140, .05);
	border-left: 4px solid var(--led-primary);
	border-radius: var(--led-radius);
	padding: 18px 22px;
	margin: 24px 0;
}
.led-conclusion-label { font-size: 13px; color: var(--led-primary); font-weight: 600; display: block; margin-bottom: 6px; }
.led-conclusion p { margin: 0; font-size: 15px; }

.led-geo-summary {
	background: var(--led-bg-alt);
	border-radius: var(--led-radius);
	padding: 24px 28px;
	margin: 40px 0 0;
}
.led-geo-summary h2 { font-size: 1.125rem; margin: 0 0 14px; }
.led-geo-summary dl { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 0; }
.led-geo-summary dt { font-size: 12px; color: var(--led-text-muted); }
.led-geo-summary dd { margin: 2px 0 0; font-size: 14px; font-weight: 500; }

/* 术语表 */
.led-glossary { background: var(--led-bg-alt); padding: 24px 28px; border-radius: var(--led-radius); margin: 28px 0; }
.led-glossary h2 { font-size: 1.125rem; margin: 0 0 14px; }
.led-glossary dt { font-weight: 600; margin-top: 12px; }
.led-glossary dd { margin: 3px 0 0; color: var(--led-text-secondary); font-size: 14px; }

/* ============ 联系页 ============ */
.contact-info { margin: 40px 0; }
.contact-info__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.contact-card {
	background: #fff;
	border: 1px solid var(--led-border);
	border-radius: var(--led-radius);
	padding: 24px;
}
.contact-card h2 { font-size: 1rem; color: var(--led-text-muted); margin: 0 0 8px; font-weight: 500; }
.contact-card p { font-size: 1.0625rem; font-weight: 600; margin: 0; }
.contact-card address { font-style: normal; font-size: 14px; font-weight: 400; }
.contact-card__sub { font-size: 13px; font-weight: 400; color: var(--led-text-muted); margin-top: 6px; }
.contact-social { margin-top: 32px; }
.contact-social h2 { font-size: 1.125rem; margin: 0 0 12px; }
.contact-social ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 16px; }

.contact-form-wrap { background: var(--led-bg-alt); padding: 32px; border-radius: var(--led-radius); }
.contact-form-wrap h2 { font-size: 1.375rem; margin: 0 0 6px; }
.contact-form-wrap > p { color: var(--led-text-secondary); margin: 0 0 22px; font-size: 14px; }
.contact-form { max-width: 640px; }
.contact-form__row { margin-bottom: 16px; }
.contact-form__row label { display: block; font-size: 14px; margin-bottom: 6px; font-weight: 500; }
.contact-form__row .required { color: #dc2626; }
.contact-form__row input,
.contact-form__row textarea {
	width: 100%;
	padding: 11px 14px;
	border: 1px solid var(--led-border);
	border-radius: var(--led-radius);
	background: #fff;
	font-size: 14px;
}
.contact-form__row input:focus,
.contact-form__row textarea:focus { outline: none; border-color: var(--led-primary); }
.contact-form__row textarea { resize: vertical; }

/* ============ 企业档案 ============ */
.company-profile,
.company-scope,
.company-area { margin-top: 40px; }
.company-profile h2,
.company-scope h2,
.company-area h2,
.faq-page__cta h2 { font-size: 1.375rem; margin: 0 0 18px; padding-left: 12px; border-left: 4px solid var(--led-primary); }
.company-profile__table { max-width: 720px; }
.company-scope p, .company-area p { color: var(--led-text-secondary); }

/* ============ 搜索结果 ============ */
.search-summary {
	background: var(--led-bg-alt);
	padding: 24px;
	border-radius: var(--led-radius);
	margin-bottom: 28px;
}
.search-summary__title { font-size: 1.125rem; margin: 0 0 14px; }
.search-summary__form .led-search-form { max-width: 480px; height: 42px; }

.search-list { display: flex; flex-direction: column; gap: 28px; }
.search-item { padding-bottom: 24px; border-bottom: 1px solid var(--led-border); }
.search-item__title { font-size: 1.125rem; margin: 0 0 8px; }
.search-item__title mark { background: rgba(10, 77, 140, .15); color: var(--led-primary); padding: 0 2px; }
.search-item__excerpt { font-size: 14px; color: var(--led-text-secondary); margin: 0 0 10px; }
.search-item__meta { display: flex; gap: 16px; font-size: 12px; color: var(--led-text-muted); }

/* ============ 无结果 ============ */
.no-results {
	background: var(--led-bg-alt);
	border-radius: var(--led-radius);
	padding: 48px 32px;
	text-align: center;
	margin: 32px 0 60px;
}
.no-results__title { font-size: 1.375rem; margin: 0 0 24px; }
.no-results__search { max-width: 480px; margin: 0 auto 32px; }
.no-results__links { text-align: left; max-width: 640px; margin: 0 auto; }
.no-results__links h3 { font-size: 1rem; margin: 0 0 12px; }
.no-results__links ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }

/* ============ 404 ============ */
.error-404 { padding: 80px 0; background: var(--led-bg-alt); }
.error-404__inner { max-width: 900px; margin: 0 auto; }
.error-404__head { text-align: center; margin-bottom: 48px; }
.error-404__code {
	font-size: 5rem;
	font-weight: 700;
	color: var(--led-primary);
	line-height: 1;
	margin: 0;
	opacity: .2;
}
.error-404__title { font-size: 1.75rem; margin: 0 0 12px; }
.error-404__desc { color: var(--led-text-secondary); margin: 0 0 24px; }
.error-404__search { max-width: 480px; margin: 0 auto; }
.error-404__body { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.error-404__col h2 { font-size: 1.0625rem; margin: 0 0 12px; padding-bottom: 8px; border-bottom: 2px solid var(--led-primary); }
.error-404__col ul { list-style: none; margin: 0; padding: 0; }
.error-404__col li { padding: 5px 0; font-size: 14px; }
.error-404__col .count { color: var(--led-text-muted); font-size: 12px; }
.error-404__contact { text-align: center; margin-top: 48px; }
.error-404__contact p { color: var(--led-text-secondary); }

/* ============ HTML 站点地图 ============ */
.html-sitemap__block { margin-bottom: 44px; }
.html-sitemap__block h2 { font-size: 1.25rem; margin: 0 0 18px; padding-bottom: 10px; border-bottom: 2px solid var(--led-primary); }
.html-sitemap__grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.html-sitemap__grid > li { font-weight: 600; }
.html-sitemap__grid ul { list-style: none; margin: 8px 0 0; padding-left: 14px; font-weight: 400; }
.html-sitemap__grid ul a { font-size: 14px; font-weight: 400; }
.html-sitemap__list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 20px; }
.html-sitemap__list .desc { display: block; font-size: 12px; color: var(--led-text-muted); }
.html-sitemap__block--ai { background: var(--led-bg-alt); padding: 24px; border-radius: var(--led-radius); }

/* ============ 友情链接 ============ */
.home-links { padding: 28px 0; background: var(--led-bg-alt); border-top: 1px solid var(--led-border); }
.home-links__title { font-size: .9375rem; margin: 0 0 12px; color: var(--led-text-muted); }
.home-links__list { display: flex; flex-wrap: wrap; gap: 8px 20px; list-style: none; margin: 0; padding: 0; font-size: 13px; }
.home-links__list a { color: var(--led-text-secondary); }

/* ============ 页脚 ============ */
.site-footer { background: var(--led-bg-dark); color: rgba(255, 255, 255, .75); font-size: 14px; }

.footer-nav { border-bottom: 1px solid rgba(255, 255, 255, .08); padding: 16px 0; }
.footer-menu { display: flex; flex-wrap: wrap; gap: 8px 24px; list-style: none; margin: 0; padding: 0; }
.footer-menu a { color: rgba(255, 255, 255, .7); font-size: 13px; }
.footer-menu a:hover { color: #fff; }

.footer-main { padding: 48px 0 32px; }
.footer-grid {
	display: grid;
	grid-template-columns: 1.6fr 1.2fr 1.2fr 180px;
	gap: 40px;
}
.footer-col__title { color: #fff; font-size: 1.0625rem; margin: 0 0 18px; font-weight: 600; }
.footer-about { color: rgba(255, 255, 255, .6); font-size: 13px; line-height: 1.8; margin: 0 0 18px; }
.footer-qr { display: flex; align-items: center; gap: 12px; }
.footer-qr img { width: 88px; height: 88px; background: #fff; padding: 5px; border-radius: 4px; }
.footer-qr span { font-size: 12px; color: rgba(255, 255, 255, .5); }

.footer-contact-list li { display: flex; gap: 12px; margin-bottom: 10px; font-size: 13px; }
.footer-contact-list .label { color: rgba(255, 255, 255, .45); flex-shrink: 0; min-width: 60px; }
.footer-contact-list address { font-style: normal; }
.footer-contact-list a { color: rgba(255, 255, 255, .75); }

.footer-keywords { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 10px; }
.footer-keywords li a { font-size: 12px; color: rgba(255, 255, 255, .55); }
.footer-keywords li a:hover { color: #fff; }

.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 18px 0; font-size: 13px; }
.footer-bottom__row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.footer-copyright { color: rgba(255, 255, 255, .45); display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.footer-beian { color: rgba(255, 255, 255, .45); }
.footer-legal-menu { display: flex; flex-wrap: wrap; gap: 16px; list-style: none; margin: 0; padding: 0; }
.footer-legal-menu a { color: rgba(255, 255, 255, .45); font-size: 13px; }
.footer-legal-menu a:hover { color: #fff; }

/* ============ 悬浮工具栏 ============ */
.right-bar {
	position: fixed;
	right: 0;
	top: 50%;
	transform: translateY(-50%);
	z-index: 900;
}
.right-bar ul { list-style: none; margin: 0; padding: 0; }
.right-bar__item a,
.right-bar__item button {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 52px;
	height: 52px;
	background: var(--led-primary);
	color: #fff;
	border: 0;
	border-radius: var(--led-radius) 0 0 var(--led-radius);
	transition: all .25s ease;
}
.right-bar__item a:hover,
.right-bar__item button:hover { background: var(--led-primary-dark); }
.right-bar__item strong { font-size: 13px; }
.right-bar__item--tel { position: relative; }
.right-bar__item--tel strong { position: absolute; right: 100%; white-space: nowrap; background: var(--led-primary); padding: 8px 14px; border-radius: 4px 0 0 4px; opacity: 0; pointer-events: none; transition: opacity .2s ease; }
.right-bar__item--tel:hover strong { opacity: 1; }
.right-bar__qr { position: relative; }
.right-bar__qr__inner,
.right-bar__item--qr .right-bar__qr {
	position: absolute;
	right: 100%;
	bottom: 0;
	width: 140px;
	background: #fff;
	padding: 10px;
	border-radius: 4px 0 0 4px;
	opacity: 0;
	visibility: hidden;
	transition: opacity .2s ease;
	text-align: center;
}
.right-bar__item--qr.is-hover .right-bar__qr { opacity: 1; visibility: visible; }
.right-bar__item--qr img { width: 120px; height: 120px; }
.right-bar__item--qr p { margin: 4px 0 0; font-size: 12px; color: var(--led-text-secondary); }

.back-to-top {
	position: fixed;
	right: 20px;
	bottom: 90px;
	width: 44px;
	height: 44px;
	border-radius: 50%;
	background: var(--led-bg-dark);
	color: #fff;
	border: 0;
	opacity: 0;
	visibility: hidden;
	transition: opacity .25s ease;
	z-index: 899;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; }

.right-bar__item--top { display: none; }
.right-bar__item--top button { border-radius: 0 0 var(--led-radius) var(--led-radius); }

.right-bar__item .icon { width: 18px; height: 18px; background: currentColor; }
.right-bar__item--tel .icon,
.right-bar__item--qr .icon,
.right-bar__item--top .icon,
.back-to-top .icon {
	-webkit-mask: var(--icon) center/contain no-repeat;
	mask: var(--icon) center/contain no-repeat;
}
.right-bar__item--tel .icon { --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.62 10.79c1.44 2.83 3.76 5.14 6.59 6.59l2.2-2.2c.27-.27.67-.36 1.02-.24 1.12.37 2.33.57 3.57.57.55 0 1 .45 1 1V20c0 .55-.45 1-1 1-9.39 0-17-7.61-17-17 0-.55.45-1 1-1h3.5c.55 0 1 .45 1 1 0 1.25.2 2.45.57 3.57.11.35.03.74-.25 1.02l-2.2 2.2z'/%3E%3C/svg%3E"); }
.right-bar__item--qr .icon { --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 3h8v8H3V3zm2 2v4h4V5H5zm8-2h8v8h-8V3zm2 2v4h4V5h-4zM3 13h8v8H3v-8zm2 2v4h4v-4H5zm8-2h3v3h-3v-3zm5 0h3v3h-3v-3zm-5 5h3v3h-3v-3zm5 0h3v3h-3v-3z'/%3E%3C/svg%3E"); }
.right-bar__item--top .icon,
.back-to-top .icon { --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 8l-6 6 1.41 1.41L12 10.83l4.59 4.58L18 14z'/%3E%3C/svg%3E"); }

/* ============ 移动端底部操作栏 ============ */
.mobile-action-bar {
	display: none;
	position: fixed;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 950;
	background: #fff;
	border-top: 1px solid var(--led-border);
	box-shadow: 0 -2px 10px rgba(0, 0, 0, .06);
	padding-bottom: env(safe-area-inset-bottom);
}
.mobile-action-bar__item {
	flex: 1;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 2px;
	height: 54px;
	font-size: 11px;
	color: var(--led-text-secondary);
}
.mobile-action-bar__item .icon { width: 18px; height: 18px; }
.mobile-action-bar__item--tel .icon,
.mobile-action-bar__item--search .icon {
	background: currentColor;
	-webkit-mask: var(--icon) center/contain no-repeat;
	mask: var(--icon) center/contain no-repeat;
}
.mobile-action-bar__item--tel .icon { --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.62 10.79c1.44 2.83 3.76 5.14 6.59 6.59l2.2-2.2c.27-.27.67-.36 1.02-.24 1.12.37 2.33.57 3.57.57.55 0 1 .45 1 1V20c0 .55-.45 1-1 1-9.39 0-17-7.61-17-17 0-.55.45-1 1-1h3.5c.55 0 1 .45 1 1 0 1.25.2 2.45.57 3.57.11.35.03.74-.25 1.02l-2.2 2.2z'/%3E%3C/svg%3E"); }
.mobile-action-bar__item--search .icon { --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 14h-.79l-.28-.27a6.5 6.5 0 1 0-.7.7l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E"); }
.mobile-action-bar__item--primary {
	background: var(--led-primary);
	color: #fff;
	font-size: 15px;
	font-weight: 600;
}

/* ============ 图文混排 ============ */
.mixed-list { display: flex; flex-direction: column; gap: 28px; }
.mixed-item {
	display: grid;
	grid-template-columns: 280px 1fr;
	gap: 24px;
	padding-bottom: 28px;
	border-bottom: 1px solid var(--led-border);
}
.mixed-item__thumb { display: block; border-radius: var(--led-radius); overflow: hidden; }
.mixed-item__thumb img { width: 100%; height: 176px; object-fit: cover; transition: transform .35s ease; }
.mixed-item:hover .mixed-item__thumb img { transform: scale(1.04); }
.mixed-item__title { font-size: 1.125rem; margin: 0 0 8px; }
.mixed-item__title a { color: var(--led-text); }
.mixed-item__title a:hover { color: var(--led-primary); }
.mixed-item__excerpt { font-size: 14px; color: var(--led-text-secondary); margin: 0 0 12px; }
.mixed-item__meta { display: flex; gap: 16px; font-size: 12px; color: var(--led-text-muted); margin-bottom: 10px; }
.mixed-item__more { font-size: 13px; color: var(--led-primary); }

/* 评论区样式见 css/comments.php 与 css/comments.css */


.led-pagination { margin: 44px 0; }
.led-pagination ul { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; list-style: none; margin: 0; padding: 0; }
.led-pagination .page-numbers {
	display: flex;
	align-items: center;
	justify-content: center;
	min-width: 40px;
	height: 40px;
	padding: 0 12px;
	border: 1px solid var(--led-border);
	border-radius: var(--led-radius);
	color: var(--led-text-secondary);
	font-size: 14px;
}
.led-pagination .page-numbers:hover { border-color: var(--led-primary); color: var(--led-primary); }
.led-pagination .page-numbers.current {
	background: var(--led-primary);
	border-color: var(--led-primary);
	color: #fff;
}
.led-pagination .dots { border: 0; min-width: auto; }

/* ============ 响应式 ============ */
@media (max-width: 1200px) {
	.footer-grid { grid-template-columns: 1.4fr 1.2fr 1fr; }
	.footer-col--qr { display: none; }
	.application-grid { grid-template-columns: repeat(4, 1fr); }
	.html-sitemap__grid { grid-template-columns: repeat(3, 1fr); }
	.gallery-grid--archive { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
	.mobile-topbar {
		display: block;
		position: sticky;
		top: 0;
		z-index: 1001;
		background: #fff;
		border-bottom: 1px solid var(--led-border);
	}
	.mobile-topbar__inner {
		display: flex;
		align-items: center;
		justify-content: space-between;
		height: 56px;
		padding: 0 16px;
	}
	.mobile-topbar__logo img { max-height: 32px; width: auto; }
	.mobile-topbar__logo span { font-size: 1.0625rem; font-weight: 700; }

	.site-header { position: static; }
	.site-header.is-hidden { transform: none; }
	.site-header__inner { min-height: auto; padding: 12px 0; }
	.main-navigation,
	.site-header__actions { display: none; }

	.mobile-action-bar { display: flex; }
	.right-bar { display: none; }
	.back-to-top { bottom: 72px; right: 16px; }

	.home-banner__swiper { height: 320px; }
	.home-search__inner { grid-template-columns: 1fr; gap: 24px; }

	.product-single__top { grid-template-columns: 1fr; gap: 32px; }
	.product-gallery__main { height: 380px; }

	.article-grid,
	.article-grid--list,
	.product-grid,
	.gallery-grid { grid-template-columns: repeat(2, 1fr); }

	.advantage-numbers { grid-template-columns: repeat(2, 1fr); }
	.advantage-texts { grid-template-columns: repeat(2, 1fr); }

	.section-case__layout { grid-template-columns: 1fr; }
	.about-layout { grid-template-columns: 1fr; }
	.about-layout__media { order: -1; }
	.tuwen-layout { grid-template-columns: 1fr; }

	.archive-layout { grid-template-columns: 1fr; }
	.related-grid { grid-template-columns: repeat(2, 1fr); }

	.html-sitemap__grid { grid-template-columns: repeat(2, 1fr); }
	.html-sitemap__list { grid-template-columns: repeat(2, 1fr); }
	.error-404__body { grid-template-columns: 1fr; gap: 24px; }

	.footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
	.post-single__title { font-size: 1.625rem; }
	.page-article__title { font-size: 1.625rem; }
}

@media (max-width: 640px) {
	body { font-size: 14.5px; }

	.section { padding: 48px 0; }
	.main-container { padding: 0 16px; }

	.section-header__title { font-size: 1.5rem; }

	.article-grid,
	.article-grid--list,
	.product-grid,
	.gallery-grid,
	.gallery-grid--archive,
	.news-list,
	.related-grid,
	.application-grid,
	.advantage-numbers,
	.advantage-texts,
	.advantage-texts,
	.no-results__links,
	.html-sitemap__grid,
	.html-sitemap__list { grid-template-columns: 1fr; }

	.application-grid { grid-template-columns: repeat(2, 1fr); }

	.mixed-item { grid-template-columns: 1fr; }
	.mixed-item__thumb img { height: 200px; }

	.post-nav { grid-template-columns: 1fr; }
	.post-nav__item--next { text-align: left; }

	.about-layout__facts { grid-template-columns: 1fr; }
	.footer-grid { grid-template-columns: 1fr; }
	.footer-bottom__row { flex-direction: column; align-items: flex-start; }

	.contact-form-wrap { padding: 24px 20px; }
	.led-faq-a { padding-left: 20px; }

	.page-banner { min-height: 160px; }
	.page-banner-title { font-size: 1.375rem; }
	.home-banner__swiper { height: 200px; }
	.home-banner__nav { display: none; }

	.product-single__title { font-size: 1.5rem; }
	.led-spec-table th { width: 42%; }

	.page-links { display: flex; flex-wrap: wrap; gap: 8px; }
}

@media print {
	.site-header, .site-footer, .right-bar, .back-to-top,
	.mobile-topbar, .mobile-action-bar, .hot-search-bar,
	.breadcrumb, .pagination, .led-pagination { display: none !important; }
	body { color: #000; font-size: 12pt; }
	a { color: #000; text-decoration: underline; }
	.entry-content a::after { content: " (" attr(href) ")"; font-size: 9pt; color: #555; }
}
/* ============ 下载中心 ============ */
.download-list { margin-top: 40px; }
.download-list__title {
	font-size: 1.375rem;
	margin: 0 0 24px;
	padding-left: 12px;
	border-left: 4px solid var(--led-primary);
}
.download-list__items { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.download-item {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
	flex-wrap: wrap;
	padding: 22px 24px;
	background: #fff;
	border: 1px solid var(--led-border);
	border-radius: var(--led-radius);
	transition: box-shadow .25s ease, border-color .25s ease;
}
.download-item:hover { box-shadow: var(--led-shadow); border-color: var(--led-primary); }
.download-item__info { flex: 1; min-width: 260px; }
.download-item__title { font-size: 1.0625rem; margin: 0 0 6px; }
.download-item__title a { color: var(--led-text); }
.download-item__title a:hover { color: var(--led-primary); }
.download-item__desc { font-size: 13.5px; color: var(--led-text-secondary); margin: 0 0 8px; }
.download-item__meta { display: flex; gap: 16px; font-size: 12px; color: var(--led-text-muted); margin: 0; }
.download-item__files { display: flex; flex-wrap: wrap; gap: 10px; }
.download-file {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 9px 16px;
	background: var(--led-primary-light);
	border: 1px solid transparent;
	border-radius: var(--led-radius);
	color: var(--led-primary);
	font-size: 13px;
	transition: all .2s ease;
}
.download-file:hover { background: var(--led-primary); color: #fff; }
.download-file__icon {
	width: 14px;
	height: 14px;
	background: currentColor;
	-webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M19 9h-4V3H9v6H5l7 7 7-7zM5 18v2h14v-2H5z'/%3E%3C/svg%3E") center/contain no-repeat;
	mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M19 9h-4V3H9v6H5l7 7 7-7zM5 18v2h14v-2H5z'/%3E%3C/svg%3E") center/contain no-repeat;
}
.download-file__ext {
	font-size: 10px;
	padding: 1px 5px;
	background: currentColor;
	border-radius: 2px;
	color: #fff;
	font-weight: 700;
}
.download-file:hover .download-file__ext { background: rgba(255,255,255,.25); }

@media (max-width: 640px) {
	.download-item { flex-direction: column; align-items: flex-start; }
	.download-item__files { width: 100%; }
}