/* =========================================================
   清源环保 QingYuan · 主样式
   设计语言：洁净浅底 + 钢青墨深区块 + 设备铭牌数据排版
   绿色 = 达标/环保语义 · 橙色 = 行动信号（克制使用）
   ========================================================= */

:root {
	--paper:      #F4F8F9;
	--card:       #FFFFFF;
	--ink:        #10242F;
	--ink-soft:   #33474F;
	--muted:      #5B707A;
	--line:       #D9E4E7;
	--line-dark:  rgba(255, 255, 255, .14);

	--panel:      #0E2C39;   /* 深色区块 */
	--panel-deep: #0A222C;
	--strip:      #071B23;   /* CEMS 数据条 */

	--brand:      #109B7C;   /* 洁净青 */
	--brand-deep: #0B6F59;
	--brand-lite: #3BD6AC;   /* 深底上的达标绿 */
	--brand-tint: #E3F3EE;

	--signal:      #F2620F;  /* 监测橙 · 仅用于行动 */
	--signal-deep: #D14F04;

	--font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
	             "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
	--font-num:  "Bahnschrift", "DIN Alternate", "Roboto Condensed", "Arial Narrow",
	             "PingFang SC", "Microsoft YaHei", sans-serif;

	--rad:    10px;
	--rad-sm: 6px;
	--shadow: 0 10px 30px rgba(14, 44, 57, .10);
	--wrap:   1200px;
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
	margin: 0;
	font-family: var(--font-body);
	font-size: 16px;
	line-height: 1.75;
	color: var(--ink);
	background: var(--paper);
	-webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-deep); text-decoration: none; }
a:hover { color: var(--brand); }
h1, h2, h3, h4 { line-height: 1.3; margin: 0 0 .5em; font-weight: 700; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }
figure { margin: 0; }

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

/* 铭牌数字字体：所有数据统一使用 */
.num {
	font-family: var(--font-num);
	font-variant-numeric: tabular-nums;
	letter-spacing: .02em;
}

/* 无障碍 */
.screen-reader-text {
	position: absolute; width: 1px; height: 1px;
	clip: rect(0 0 0 0); clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}
.skip-link {
	position: absolute; left: 16px; top: -48px; z-index: 200;
	background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 0 0 6px 6px;
	transition: top .2s;
}
.skip-link:focus { top: 0; color: #fff; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }

/* ---------- 按钮 ---------- */
.btn {
	display: inline-flex; align-items: center; gap: 8px;
	padding: 11px 22px; border-radius: var(--rad-sm);
	font-size: 15px; font-weight: 600; line-height: 1.4;
	border: 1.5px solid transparent; cursor: pointer;
	transition: background .18s, color .18s, border-color .18s, transform .18s;
}
.btn svg { width: 17px; height: 17px; }
.btn--lg { padding: 14px 28px; font-size: 16px; }
.btn--solid { background: var(--brand); color: #fff; }
.btn--solid:hover { background: var(--brand-deep); color: #fff; transform: translateY(-1px); }
.btn--signal { background: var(--signal); color: #fff; }
.btn--signal:hover { background: var(--signal-deep); color: #fff; transform: translateY(-1px); }
.btn--ghost { border-color: rgba(255,255,255,.45); color: #fff; background: transparent; }
.btn--ghost:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.08); }
.btn--line { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn--line:hover { background: var(--ink); color: #fff; }

/* ---------- 顶部联系条 ---------- */
.topbar { background: var(--ink); color: rgba(255,255,255,.78); font-size: 13px; }
.topbar-in { display: flex; justify-content: space-between; align-items: center; min-height: 38px; gap: 16px; }
.topbar-note { margin: 0; letter-spacing: .04em; }
.topbar-contact { display: flex; gap: 22px; }
.topbar-item { display: inline-flex; align-items: center; gap: 7px; }
.topbar-item svg { width: 14px; height: 14px; color: var(--brand-lite); }
.topbar-item a { color: rgba(255,255,255,.92); }
.topbar-item a:hover { color: var(--brand-lite); }
.topbar-item .num { font-size: 14px; letter-spacing: .05em; }

/* ---------- 页头 ---------- */
.site-head {
	background: var(--card);
	border-bottom: 1px solid var(--line);
	position: sticky; top: 0; z-index: 100;
	transition: box-shadow .2s;
}
.site-head.is-stuck { box-shadow: 0 6px 24px rgba(14,44,57,.10); }
.head-in { display: flex; align-items: center; justify-content: space-between; min-height: 74px; gap: 24px; }

.brand-mark { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); }
.brand-glyph { width: 42px; height: 42px; color: var(--brand); display: inline-flex; }
.brand-glyph svg { width: 100%; height: 100%; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 21px; letter-spacing: .06em; }
.brand-text small { font-family: var(--font-num); font-size: 10px; letter-spacing: .22em; color: var(--muted); }
.custom-logo { max-height: 52px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav .menu { display: flex; list-style: none; gap: 6px; }
.main-nav .menu > li { position: relative; }
.main-nav .menu > li > a {
	display: block; padding: 26px 14px; color: var(--ink); font-weight: 600; font-size: 15.5px;
	position: relative;
}
.main-nav .menu > li > a::after {
	content: ""; position: absolute; left: 14px; right: 14px; bottom: 18px;
	height: 2.5px; background: var(--brand); border-radius: 2px;
	transform: scaleX(0); transform-origin: left; transition: transform .2s;
}
.main-nav .menu > li:hover > a::after,
.main-nav .menu > li.current-menu-item > a::after,
.main-nav .menu > li.current-menu-ancestor > a::after { transform: scaleX(1); }

/* 二级菜单 */
.main-nav .menu .sub-menu {
	position: absolute; top: 100%; left: 0; min-width: 210px;
	background: var(--card); border: 1px solid var(--line); border-radius: var(--rad-sm);
	box-shadow: var(--shadow); list-style: none; padding: 8px;
	opacity: 0; visibility: hidden; transform: translateY(6px);
	transition: opacity .18s, transform .18s, visibility .18s;
}
.main-nav .menu > li:hover > .sub-menu,
.main-nav .menu > li:focus-within > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.main-nav .menu .sub-menu a { display: block; padding: 9px 12px; border-radius: 5px; color: var(--ink-soft); font-size: 14.5px; }
.main-nav .menu .sub-menu a:hover { background: var(--brand-tint); color: var(--brand-deep); }

.nav-toggle { display: none; }

/* ---------- 首页横幅 ---------- */
.hero {
	position: relative; overflow: hidden; color: #fff;
	background: linear-gradient(135deg, var(--panel) 0%, var(--panel-deep) 100%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-schematic {
	position: absolute; right: -40px; bottom: 54px;
	width: min(920px, 86%); height: auto;
	color: var(--brand-lite); opacity: .26;
}
.hero-in { position: relative; padding: 92px 24px 110px; max-width: var(--wrap); }

.hero-badge {
	display: inline-flex; align-items: center; gap: 9px;
	font-size: 13.5px; letter-spacing: .08em; color: rgba(255,255,255,.85);
	border: 1px solid var(--line-dark); border-radius: 999px;
	padding: 7px 16px; margin: 0 0 26px; background: rgba(255,255,255,.05);
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-lite); box-shadow: 0 0 8px var(--brand-lite); }

.hero-title { font-size: clamp(38px, 5.4vw, 62px); font-weight: 800; letter-spacing: .02em; margin: 0 0 22px; }
.hero-title .line { display: block; }
.hero-title .line--accent { color: var(--brand-lite); }
.hero-sub { max-width: 620px; font-size: 17px; color: rgba(255,255,255,.78); margin-bottom: 34px; }
.hero-act { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- 招牌元素：CEMS 监测数据条 ---------- */
.cems { background: var(--strip); border-top: 1px solid var(--line-dark); }
.cems-in {
	display: flex; align-items: center; flex-wrap: wrap;
	gap: 14px 34px; padding: 16px 24px;
	max-width: var(--wrap); margin: 0 auto;
	color: rgba(255,255,255,.82); font-size: 13px;
}
.cems--inline { border: 1px solid var(--line); border-radius: var(--rad); overflow: hidden; margin: 26px 0 30px; }
.cems--inline .cems-in { max-width: none; }

.cems-tag {
	font-family: var(--font-num); font-size: 11px; letter-spacing: .18em;
	color: var(--signal); border: 1px solid rgba(242,98,15,.55);
	padding: 4px 10px; border-radius: 3px; white-space: nowrap;
}
.cems-item { display: inline-flex; flex-direction: column; gap: 2px; }
.cems-item small { font-size: 11.5px; letter-spacing: .1em; color: rgba(255,255,255,.5); }
.cems-item b { font-size: 21px; font-weight: 600; color: #fff; line-height: 1.1; }
.cems-item b i { font-style: normal; font-size: 12px; margin-left: 4px; color: rgba(255,255,255,.55); }
.cems-out { color: var(--brand-lite) !important; }
.cems-flow { font-family: var(--font-num); letter-spacing: .14em; color: rgba(255,255,255,.4); white-space: nowrap; }
.cems-status { display: inline-flex; align-items: center; gap: 8px; margin-left: auto; font-weight: 600; color: var(--brand-lite); white-space: nowrap; }
.cems .lamp, .cems--inline .lamp {
	width: 9px; height: 9px; border-radius: 50%;
	background: var(--brand-lite); box-shadow: 0 0 10px var(--brand-lite);
	animation: lamp 2.4s ease-in-out infinite;
}
@keyframes lamp { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

/* ---------- 区块通用 ---------- */
.sec { padding: 84px 0; }
.sec--tint { background: #EDF3F4; }
.sec-more { text-align: center; margin: 42px 0 0; }

.sec-head { max-width: 680px; margin-bottom: 46px; }
.sec-head--dark .sec-title { color: #fff; }
.sec-head--dark .sec-desc { color: rgba(255,255,255,.7); }

.eyebrow {
	display: inline-flex; align-items: center; gap: 9px;
	font-family: var(--font-num); font-size: 12.5px; letter-spacing: .22em;
	color: var(--brand-deep); margin: 0 0 12px; text-transform: uppercase;
}
.eyebrow--light { color: var(--brand-lite); }
.eyebrow-tick { width: 9px; height: 9px; background: currentColor; display: inline-block; }
.sec-title { font-size: clamp(26px, 3.2vw, 36px); letter-spacing: .02em; margin: 0 0 10px; }
.sec-desc { color: var(--muted); margin: 0; }

/* ---------- 产品分类入口 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cat-card {
	display: flex; flex-direction: column; gap: 10px;
	background: var(--card); border: 1px solid var(--line); border-radius: var(--rad);
	padding: 26px 24px 22px; color: var(--ink);
	transition: border-color .18s, box-shadow .18s, transform .18s;
}
.cat-card:hover { border-color: var(--brand); box-shadow: var(--shadow); transform: translateY(-3px); color: var(--ink); }
.cat-glyph { width: 84px; height: 56px; color: var(--brand); opacity: .9; }
.cat-glyph svg { width: 100%; height: 100%; }
.cat-name { font-size: 17px; font-weight: 700; }
.cat-more { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; color: var(--muted); }
.cat-more svg { width: 14px; height: 14px; transition: transform .18s; }
.cat-card:hover .cat-more { color: var(--brand-deep); }
.cat-card:hover .cat-more svg { transform: translateX(3px); }

/* ---------- 关于 + 数字铭牌 ---------- */
.about-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 60px; align-items: center; }
.about-copy p { color: var(--ink-soft); }
.about-copy .btn { margin-top: 8px; }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat {
	background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--brand);
	border-radius: var(--rad-sm); padding: 22px 20px;
}
.stat-num { display: block; font-size: 42px; font-weight: 700; color: var(--ink); line-height: 1.05; }
.stat-num::after { content: ""; }
.stat-txt { color: var(--muted); font-size: 14px; }

/* ---------- 卡片 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
	background: var(--card); border: 1px solid var(--line); border-radius: var(--rad);
	overflow: hidden; display: flex; flex-direction: column;
	transition: box-shadow .2s, transform .2s, border-color .2s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: #C4D4D9; }
.thumb { aspect-ratio: 4 / 3; overflow: hidden; background: #E8EFF1; }
.thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.card:hover .thumb img { transform: scale(1.045); }
.thumb--ph { display: flex; align-items: center; justify-content: center; color: #9FB6BE; }
.thumb--ph svg { width: 62%; height: auto; }
.thumb--frame { border: 1px solid var(--line); border-radius: var(--rad); }
.thumb-link { display: block; }

.card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-title { font-size: 17.5px; margin: 0; }
.card-title a { color: var(--ink); }
.card-title a:hover { color: var(--brand-deep); }
.card-ex { color: var(--muted); font-size: 14px; margin: 0; }
.card-date { font-size: 13px; color: var(--muted); letter-spacing: .06em; }

.tag {
	align-self: flex-start; display: inline-block;
	font-size: 12px; letter-spacing: .06em; font-weight: 600;
	color: var(--brand-deep); background: var(--brand-tint);
	padding: 3px 10px; border-radius: 3px;
}
a.tag:hover { background: var(--brand); color: #fff; }

/* 铭牌参数（卡片内） */
.plate { margin: 2px 0 0; border-top: 1px dashed var(--line); }
.plate > div { display: flex; justify-content: space-between; gap: 14px; padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 13.5px; }
.plate dt { color: var(--muted); flex-shrink: 0; }
.plate dd { margin: 0; color: var(--ink); text-align: right; }

/* ---------- 核心优势（深色带） ---------- */
.sec--edge { background: linear-gradient(135deg, var(--panel) 0%, var(--panel-deep) 100%); color: #fff; }
.edge-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.edge {
	border: 1px solid var(--line-dark); border-radius: var(--rad);
	padding: 26px 24px; background: rgba(255,255,255,.03);
	transition: background .2s, border-color .2s;
}
.edge:hover { background: rgba(255,255,255,.07); border-color: rgba(59,214,172,.5); }
.edge h3 { font-size: 17.5px; margin-bottom: 10px; color: #fff; }
.edge h3::before { content: ""; display: block; width: 26px; height: 3px; background: var(--brand-lite); margin-bottom: 14px; }
.edge p { color: rgba(255,255,255,.72); font-size: 14.5px; margin: 0; }

/* ---------- 服务流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; list-style: none; counter-reset: step; }
.flow-step {
	position: relative; background: var(--card); border: 1px solid var(--line);
	border-radius: var(--rad); padding: 22px 20px;
}
.flow-step .num {
	display: block; font-size: 34px; font-weight: 700; color: var(--brand);
	line-height: 1; margin-bottom: 12px;
}
.flow-step h3 { font-size: 16.5px; margin-bottom: 6px; }
.flow-step p { font-size: 13.5px; color: var(--muted); margin: 0; }
.flow-step:not(:last-child)::after {
	content: "→"; position: absolute; right: -15px; top: 26px;
	color: var(--brand); font-size: 16px; font-family: var(--font-num); z-index: 1;
}

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 26px; align-items: start; }
.news-lead { background: var(--card); border: 1px solid var(--line); border-radius: var(--rad); overflow: hidden; }
.news-lead .thumb { aspect-ratio: 2 / 1; }
.news-lead-body { padding: 22px 26px 26px; }
.news-lead-body time { font-size: 13px; color: var(--muted); letter-spacing: .06em; }
.news-lead-body h3 { font-size: 19px; margin: 8px 0 8px; }
.news-lead-body h3 a { color: var(--ink); }
.news-lead-body h3 a:hover { color: var(--brand-deep); }
.news-lead-body p { color: var(--muted); font-size: 14.5px; margin: 0; }
.news-list { display: flex; flex-direction: column; }
.news-item { padding: 16px 4px; border-bottom: 1px solid var(--line); }
.news-item:first-child { padding-top: 4px; }
.news-item time { font-size: 12.5px; color: var(--muted); letter-spacing: .06em; }
.news-item h3 { font-size: 15.5px; margin: 4px 0 0; font-weight: 600; }
.news-item h3 a { color: var(--ink-soft); }
.news-item h3 a:hover { color: var(--brand-deep); }

/* ---------- 内页横幅 / 面包屑 ---------- */
.page-hero {
	background: linear-gradient(135deg, var(--panel) 0%, var(--panel-deep) 100%);
	color: #fff; padding: 58px 0 54px;
}
.page-hero h1 { font-size: clamp(28px, 3.6vw, 40px); margin: 0 0 8px; }
.page-hero-desc { color: rgba(255,255,255,.72); margin: 0; max-width: 640px; }

.crumbs { background: var(--card); border-bottom: 1px solid var(--line); font-size: 13.5px; }
.crumbs .container { padding-top: 12px; padding-bottom: 12px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--brand-deep); }
.crumbs span { color: var(--ink-soft); }
.crumbs-sep { margin: 0 10px; color: var(--line); }

/* ---------- 筛选条 ---------- */
.filter { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 38px; }
.filter-chip {
	padding: 8px 18px; border-radius: 999px; font-size: 14px; font-weight: 600;
	border: 1.5px solid var(--line); color: var(--ink-soft); background: var(--card);
	transition: all .16s;
}
.filter-chip:hover { border-color: var(--brand); color: var(--brand-deep); }
.filter-chip.is-on { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- 产品详情 ---------- */
.product-top { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.product-title { font-size: clamp(24px, 3vw, 32px); margin: 10px 0 12px; }
.product-lead { color: var(--muted); }
.plate-title {
	display: flex; align-items: center; gap: 9px;
	font-family: var(--font-num); font-size: 14px; letter-spacing: .16em;
	color: var(--brand-deep); margin: 26px 0 14px; text-transform: uppercase;
}
.plate-title .eyebrow-tick { background: var(--brand-deep); }

.spec-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); background: var(--card); font-size: 14.5px; }
.spec-table th, .spec-table td { padding: 11px 16px; border-bottom: 1px solid var(--line); text-align: left; }
.spec-table th { width: 34%; background: #EDF3F4; color: var(--ink-soft); font-weight: 600; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }

.product-act { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.product-note { font-size: 13px; color: var(--muted); margin-top: 14px; }
.product-detail { margin-top: 62px; }

/* ---------- 案例详情 / 文章 ---------- */
.case-head h1, .article-head h1 { font-size: clamp(24px, 3.2vw, 34px); margin: 10px 0 6px; }
.case-client { color: var(--muted); }
.case-figure, .article-figure { margin: 26px 0; border-radius: var(--rad); overflow: hidden; border: 1px solid var(--line); }
.article-head time { color: var(--muted); font-size: 14px; letter-spacing: .06em; }
.article { max-width: 860px; }

.entry { color: var(--ink-soft); }
.entry h2 { font-size: 23px; margin: 1.6em 0 .6em; color: var(--ink); }
.entry h3 { font-size: 19px; margin: 1.4em 0 .5em; color: var(--ink); }
.entry img { border-radius: var(--rad-sm); }
.entry ul, .entry ol { padding-left: 1.4em; margin-bottom: 1em; }
.entry table { width: 100%; border-collapse: collapse; margin: 1em 0; }
.entry table th, .entry table td { border: 1px solid var(--line); padding: 9px 13px; font-size: 14.5px; }
.entry table th { background: #EDF3F4; }
.entry blockquote { margin: 1.2em 0; padding: 4px 20px; border-left: 3px solid var(--brand); color: var(--muted); }

.post-nav { display: flex; justify-content: space-between; gap: 20px; margin-top: 46px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 14.5px; }
.post-nav a { color: var(--ink-soft); }
.post-nav a:hover { color: var(--brand-deep); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: start; }
.contact-list { list-style: none; display: flex; flex-direction: column; gap: 20px; margin-top: 6px; }
.contact-list li { display: flex; gap: 14px; align-items: flex-start; }
.contact-list svg { width: 20px; height: 20px; color: var(--brand); flex-shrink: 0; margin-top: 3px; }
.contact-list small { display: block; color: var(--muted); font-size: 12.5px; letter-spacing: .05em; }
.contact-list .big { font-size: 24px; font-weight: 700; color: var(--ink); }
.contact-extra { margin-top: 28px; }

.contact-form-wrap { background: var(--card); border: 1px solid var(--line); border-radius: var(--rad); padding: 30px 32px 34px; }
.inquiry label { display: block; font-size: 14px; font-weight: 600; color: var(--ink-soft); margin-bottom: 16px; }
.inquiry input, .inquiry textarea {
	display: block; width: 100%; margin-top: 6px;
	padding: 11px 14px; font: inherit; font-size: 15px; color: var(--ink);
	border: 1.5px solid var(--line); border-radius: var(--rad-sm); background: var(--paper);
	transition: border-color .16s;
}
.inquiry input:focus, .inquiry textarea:focus { border-color: var(--brand); outline: none; background: #fff; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.inquiry .btn { width: 100%; justify-content: center; margin-top: 4px; }
.inquiry-note { font-size: 12.5px; color: var(--muted); margin: 12px 0 0; text-align: center; }

/* ---------- 搜索 / 404 / 空状态 ---------- */
.search-form { display: flex; gap: 10px; max-width: 560px; }
.search-form input { flex: 1; padding: 11px 14px; font: inherit; border: 1.5px solid var(--line); border-radius: var(--rad-sm); background: #fff; }
.search-form input:focus { border-color: var(--brand); outline: none; }
.search-again { margin-bottom: 36px; }
.empty { text-align: center; padding: 70px 20px; color: var(--muted); }
.empty .btn { margin-top: 6px; }
.notfound { text-align: center; padding-top: 60px; padding-bottom: 90px; }
.notfound-code { font-size: 110px; font-weight: 700; color: var(--brand); line-height: 1; margin: 0 0 6px; }
.notfound-act { display: flex; justify-content: center; gap: 12px; margin: 20px 0 34px; }
.notfound .search-again, .notfound .search-form { margin-left: auto; margin-right: auto; justify-content: center; }

/* ---------- 分页 ---------- */
.pagination { margin-top: 46px; }
.pagination .nav-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; }
.pagination .page-numbers {
	min-width: 40px; padding: 8px 13px; text-align: center;
	border: 1.5px solid var(--line); border-radius: var(--rad-sm);
	color: var(--ink-soft); font-family: var(--font-num); font-size: 14.5px; background: #fff;
}
.pagination .page-numbers:hover { border-color: var(--brand); color: var(--brand-deep); }
.pagination .page-numbers.current { background: var(--ink); border-color: var(--ink); color: #fff; }
.pagination .page-numbers.dots { border: 0; background: none; }

/* ---------- 转化带 ---------- */
.cta-band { background: linear-gradient(120deg, var(--brand-deep) 0%, var(--panel) 78%); color: #fff; }
.cta-band-in { display: flex; align-items: center; justify-content: space-between; gap: 34px; padding: 52px 24px; flex-wrap: wrap; }
.cta-band-copy h2 { font-size: clamp(24px, 3vw, 32px); margin: 6px 0 8px; color: #fff; }
.cta-band-copy p { color: rgba(255,255,255,.78); margin: 0; }
.cta-band-act { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.cta-band-tel { display: inline-flex; align-items: center; gap: 10px; color: #fff; }
.cta-band-tel:hover { color: var(--brand-lite); }
.cta-band-tel svg { width: 21px; height: 21px; }
.cta-band-tel .num { font-size: 25px; font-weight: 700; letter-spacing: .04em; }

/* ---------- 页脚 ---------- */
.site-foot { background: var(--strip); color: rgba(255,255,255,.72); font-size: 14.5px; }
.foot-grid { display: grid; grid-template-columns: 1.3fr .9fr .8fr 1.1fr; gap: 44px; padding: 62px 24px 50px; }
.foot-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 19px; font-weight: 700; letter-spacing: .06em; margin: 0 0 14px; }
.foot-logo svg { width: 32px; height: 32px; color: var(--brand-lite); }
.foot-about { font-size: 13.5px; line-height: 1.8; }
.foot-hotline { margin-top: 18px; }
.foot-hotline small { display: block; font-family: var(--font-num); font-size: 11px; letter-spacing: .18em; color: rgba(255,255,255,.45); }
.foot-hotline a { font-size: 24px; font-weight: 700; color: var(--brand-lite); }
.foot-col h3 { color: #fff; font-size: 15.5px; margin-bottom: 16px; letter-spacing: .04em; }
.foot-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.foot-col a { color: rgba(255,255,255,.72); }
.foot-col a:hover { color: var(--brand-lite); }
.foot-contact li { display: flex; gap: 10px; align-items: flex-start; }
.foot-contact svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 4px; color: var(--brand-lite); }
.foot-legal { border-top: 1px solid var(--line-dark); }
.foot-legal-in { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding-top: 18px; padding-bottom: 18px; font-size: 13px; color: rgba(255,255,255,.5); }
.foot-legal p { margin: 0; }
.foot-legal a { color: rgba(255,255,255,.5); }
.foot-legal a:hover { color: var(--brand-lite); }

/* ---------- 返回顶部 ---------- */
.back-top {
	position: fixed; right: 22px; bottom: 26px; z-index: 90;
	width: 44px; height: 44px; border-radius: 50%;
	background: var(--ink); color: #fff; display: flex; align-items: center; justify-content: center;
	opacity: 0; visibility: hidden; transform: translateY(8px);
	transition: opacity .2s, transform .2s, visibility .2s, background .2s;
	box-shadow: 0 8px 22px rgba(14,44,57,.28);
}
.back-top svg { width: 18px; height: 18px; }
.back-top.is-show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--brand-deep); color: #fff; }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-in { opacity: 1; transform: none; }
.reveal-group .reveal:nth-child(2) { transition-delay: .07s; }
.reveal-group .reveal:nth-child(3) { transition-delay: .14s; }
.reveal-group .reveal:nth-child(4) { transition-delay: .21s; }
.reveal-group .reveal:nth-child(5) { transition-delay: .28s; }
.reveal-group .reveal:nth-child(6) { transition-delay: .35s; }

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	.reveal { opacity: 1; transform: none; transition: none; }
	.cems .lamp, .cems--inline .lamp { animation: none; }
	.btn, .card, .cat-card { transition: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
	.cat-grid { grid-template-columns: repeat(2, 1fr); }
	.grid-3 { grid-template-columns: repeat(2, 1fr); }
	.edge-grid { grid-template-columns: repeat(2, 1fr); }
	.flow { grid-template-columns: repeat(3, 1fr); }
	.flow-step:nth-child(3n)::after { display: none; }
	.about-grid { grid-template-columns: 1fr; gap: 38px; }
	.news-grid { grid-template-columns: 1fr; }
	.product-top { grid-template-columns: 1fr; gap: 30px; }
	.contact-grid { grid-template-columns: 1fr; gap: 40px; }
	.foot-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 860px) {
	.topbar-note { display: none; }
	.topbar-in { justify-content: flex-end; }

	.nav-toggle {
		display: inline-flex; align-items: center; justify-content: center;
		width: 46px; height: 46px; background: none; border: 1.5px solid var(--line);
		border-radius: var(--rad-sm); cursor: pointer;
	}
	.nav-toggle-box { display: flex; flex-direction: column; gap: 5px; }
	.nav-toggle-box i { display: block; width: 20px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s, opacity .2s; }
	.nav-toggle[aria-expanded="true"] .nav-toggle-box i:nth-child(1) { transform: translateY(7px) rotate(45deg); }
	.nav-toggle[aria-expanded="true"] .nav-toggle-box i:nth-child(2) { opacity: 0; }
	.nav-toggle[aria-expanded="true"] .nav-toggle-box i:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

	.main-nav {
		position: fixed; top: 0; right: 0; bottom: 0; z-index: 150;
		width: min(320px, 86vw); background: var(--card);
		flex-direction: column; align-items: stretch; gap: 0;
		padding: 84px 26px 30px; box-shadow: -18px 0 48px rgba(14,44,57,.22);
		transform: translateX(100%); transition: transform .26s ease;
		overflow-y: auto;
	}
	.main-nav.is-open { transform: translateX(0); }
	.main-nav .menu { flex-direction: column; gap: 0; }
	.main-nav .menu > li > a { padding: 14px 2px; border-bottom: 1px solid var(--line); }
	.main-nav .menu > li > a::after { display: none; }
	.main-nav .menu .sub-menu {
		position: static; opacity: 1; visibility: visible; transform: none;
		border: 0; box-shadow: none; padding: 0 0 6px 14px;
	}
	.nav-cta { margin-top: 22px; }
	.nav-cta .btn { width: 100%; justify-content: center; }

	body.nav-lock { overflow: hidden; }
}

@media (max-width: 640px) {
	.sec { padding: 60px 0; }
	.hero-in { padding: 64px 24px 80px; }
	.hero-schematic { right: -110px; opacity: .16; }
	.hero-act .btn { width: 100%; justify-content: center; }
	.cems-in { gap: 12px 22px; }
	.cems-status { margin-left: 0; }
	.cat-grid { grid-template-columns: 1fr; }
	.grid-3 { grid-template-columns: 1fr; }
	.edge-grid { grid-template-columns: 1fr; }
	.flow { grid-template-columns: 1fr; }
	.flow-step::after { display: none !important; }
	.about-stats { grid-template-columns: 1fr 1fr; }
	.field-row { grid-template-columns: 1fr; gap: 0; }
	.foot-grid { grid-template-columns: 1fr; gap: 30px; }
	.cta-band-in { flex-direction: column; align-items: flex-start; }
	.post-nav { flex-direction: column; }
}