/* ===== 华工人防官网 · 前台样式 ===== */
:root{
  --brand:#1668a3;        /* 主色：调淡后的蓝（原 #024a7c） */
  --brand-d:#024a7c;      /* 深：用作 hover / 文字 */
  --brand-l:#2e8bc7;      /* 亮 */
  --brand-wash:#eef4f9;   /* 极浅底 */
  --accent:#e8821e;       /* 工业橙 强调/CTA */
  --accent-d:#c96c0d;
  --ink:#16202b;          /* 正文深色 */
  --gray:#5b6b7b;
  --line:#e3e9ef;
  --bg:#ffffff;
  --bg-soft:#f5f8fb;
  --radius:14px;
  --shadow:0 10px 34px rgba(2,53,87,.10);
  --shadow-sm:0 4px 16px rgba(2,53,87,.07);
  --maxw:1200px;
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--brand-d);color:#cfe0ee;font-size:13px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar-right{display:flex;gap:20px;align-items:center}
.topbar-right b{color:#fff}
.topbar a{color:#cfe0ee}
.topbar a:hover{color:#fff}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 6px 20px rgba(2,53,87,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:78px}
.brand{display:flex;align-items:center;gap:14px}
.gov-logo{height:48px;width:auto;flex:none}
.brand-logo{height:46px;width:auto}
.brand-mark{width:46px;height:46px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800;font-size:22px}
.brand-text strong{display:block;font-size:22px;letter-spacing:1.5px;color:var(--brand-d);font-family:var(--serif);font-weight:800}
.brand-text small{display:block;font-size:11.5px;color:var(--gray);letter-spacing:.5px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav>a,.has-sub>a{padding:10px 15px;font-size:20px;font-weight:500;color:var(--ink);border-radius:8px;position:relative}
.main-nav>a:hover,.has-sub>a:hover{color:var(--brand)}
.main-nav>a::after{content:"";position:absolute;left:15px;right:15px;bottom:4px;height:2px;background:var(--brand);transform:scaleX(0);transition:transform .25s;transform-origin:left}
.main-nav>a:hover::after{transform:scaleX(1)}
.nav-cta{background:var(--accent);color:#fff!important;padding:10px 22px!important;border-radius:30px;font-weight:600}
.nav-cta:hover{background:var(--accent-d)}
.nav-cta::after{display:none}
.has-sub{position:relative}
.has-sub .sub{position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);min-width:200px;padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.22s}
.has-sub:hover .sub{opacity:1;visibility:visible;transform:translateY(0)}
.has-sub .sub a{display:block;padding:9px 14px;border-radius:7px;font-size:14.5px;color:var(--gray)}
.has-sub .sub a:hover{background:var(--brand-wash);color:var(--brand)}
.nav-toggle{display:none;background:none;border:0;font-size:26px;color:var(--brand);cursor:pointer}

/* ---------- 通用区块 ---------- */
.section{padding:78px 0}
.section.soft{background:var(--bg-soft)}
.sec-head{text-align:center;max-width:680px;margin:0 auto 50px}
.sec-eyebrow{display:inline-block;color:var(--accent);font-weight:700;letter-spacing:3px;font-size:13px;text-transform:uppercase;margin-bottom:10px}
.sec-title{font-family:var(--serif);font-size:34px;font-weight:700;color:var(--brand-d);margin:0 0 14px;line-height:1.3}
.sec-sub{color:var(--gray);font-size:16px;margin:0}
.sec-title.left,.sec-head.left{text-align:left;margin-left:0}

.btn{display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#fff;padding:13px 30px;border-radius:30px;font-weight:600;font-size:15px;border:0;cursor:pointer;transition:.25s}
.btn:hover{background:var(--brand-d);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn.accent{background:var(--accent)}
.btn.accent:hover{background:var(--accent-d)}
.btn.ghost{background:transparent;border:1.5px solid #fff;color:#fff}
.btn.ghost:hover{background:#fff;color:var(--brand-d)}
.btn.outline{background:#fff;border:1.5px solid var(--brand);color:var(--brand)}
.btn.outline:hover{background:var(--brand);color:#fff}

/* ---------- 首页 Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:linear-gradient(120deg,#053b65 0%,#0a5897 55%,#1379b9 100%)}
.hero::before{content:"";position:absolute;inset:0;background-image:url('../images/grid.svg');opacity:.18}
.hero::after{content:"";position:absolute;right:-120px;top:-80px;width:520px;height:520px;background:radial-gradient(circle,rgba(232,130,30,.32),transparent 65%);}
.hero-inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:88px 0 96px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:7px 16px;border-radius:30px;font-size:13px;letter-spacing:1px;margin-bottom:22px}
.hero h1{font-family:var(--serif);font-size:48px;line-height:1.22;margin:0 0 20px;font-weight:700}
.hero h1 em{color:var(--accent);font-style:normal}
.hero p.lead{font-size:18px;color:#d6e6f2;margin:0 0 30px;max-width:560px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:24px}

/* Hero 联系区（电话 + 微信） */
.hero-contact{display:flex;gap:18px;align-items:stretch;flex-wrap:wrap;margin-top:8px}
.hero-tel,.hero-wechat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(6px);border-radius:14px;padding:14px 20px;display:flex;align-items:center;gap:14px;transition:.25s}
.hero-tel:hover,.hero-wechat:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.28)}
.hero-tel{min-width:200px}
.hero-tel .lbl,.hero-wechat .lbl{display:block;font-size:12px;color:#bbd3e3;letter-spacing:1px;text-transform:uppercase;margin-bottom:3px}
.hero-tel a{display:block;font-size:22px;color:#fff;font-weight:700;font-family:var(--serif);letter-spacing:.5px;line-height:1.15}
.hero-tel a:hover{color:var(--accent)}
.hero-wechat img{width:68px;height:68px;border-radius:9px;background:#fff;padding:4px;flex:none;object-fit:contain;display:block}
.hero-wechat .qr-placeholder{width:68px;height:68px;border-radius:9px;background:rgba(255,255,255,.2);display:grid;place-items:center;color:#bbd3e3;font-size:13px;flex:none}
.hero-wechat .wechat-text strong{display:block;font-size:16px;color:#fff;font-weight:700;letter-spacing:.5px}
.hero-wechat .wechat-text small{display:block;font-size:12px;color:#bbd3e3;margin-top:2px}

/* Hero 右侧主图框 */
.hero-visual{position:relative}
.hero-main-frame{position:relative}
.hero-main-img{width:100%;border-radius:18px;box-shadow:0 30px 60px rgba(0,0,0,.35);border:4px solid rgba(255,255,255,.1);display:block;aspect-ratio:4/3;object-fit:cover}

/* === Hero 小相框轮播 === */
.hero-slider{position:absolute;left:-26px;bottom:30px;width:240px;height:104px}
.hero-slide{position:absolute;inset:0;background:#fff;border-radius:14px;padding:14px;box-shadow:0 14px 36px rgba(0,0,0,.28);display:flex;align-items:center;gap:14px;opacity:0;visibility:hidden;transition:opacity .6s ease, transform .6s ease;text-decoration:none;color:inherit}
.hero-slide.is-active{opacity:1;visibility:visible}
.hero-slide img{width:76px;height:76px;object-fit:cover;border-radius:9px;flex:none;background:var(--brand-wash);display:block}
.hero-slide .slide-caption{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center;gap:2px}
.hero-slide .cap-top{font-size:24px;font-weight:800;color:var(--accent);font-family:var(--serif);line-height:1.1;letter-spacing:.5px}
.hero-slide .cap-bottom{font-size:12.5px;color:var(--gray);line-height:1.4;display:block;white-space:normal;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
a.hero-slide{cursor:pointer}
a.hero-slide:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(0,0,0,.32)}
/* 无图模式：纯文字相框，居中显示（仿客户截图原样） */
.hero-slide.no-img{justify-content:flex-start;padding:18px 22px}
.hero-slide.no-img .cap-top{font-size:30px}

/* 轮播圆点 */
.hero-slider-dots{position:absolute;left:14px;bottom:-18px;display:flex;gap:6px}
.hero-slider-dots .dot{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:.25s}
.hero-slider-dots .dot.is-active{background:var(--accent);width:18px;border-radius:4px}
.hero-slider-dots .dot:hover{background:rgba(255,255,255,.7)}

/* === 4 种动画效果（作用在 .hero-slider 容器上） === */
/* 浮动 + 淡入淡出（默认推荐） */
.hero-anim-float-fade{animation:hero-float 4.8s ease-in-out infinite}
.hero-anim-float-fade .hero-slide{transform:scale(.97)}
.hero-anim-float-fade .hero-slide.is-active{transform:scale(1)}
/* 仅浮动 */
.hero-anim-float{animation:hero-float 4.5s ease-in-out infinite}
/* 仅淡入淡出（无浮动） */
.hero-anim-fade .hero-slide{transform:scale(.97)}
.hero-anim-fade .hero-slide.is-active{transform:scale(1)}
/* 横向缓慢平移 */
.hero-anim-slide{animation:hero-slide-x 8s ease-in-out infinite}
/* 静止 */
.hero-anim-none{}

@keyframes hero-float {
  0%, 100% { transform: translateY(0) }
  50%      { transform: translateY(-6px) }
}
@keyframes hero-slide-x {
  0%, 100% { transform: translateX(0) }
  50%      { transform: translateX(8px) }
}

/* 单图（不切换）时让相框相对定位以撑开高度 */
.hero-slider[data-count="1"]{position:absolute}
.hero-slider[data-count="1"] .hero-slide{position:relative}

/* 数据条 */
.stats{background:var(--brand-d);color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:44px 0}
.stats-grid .stat{border-right:1px solid rgba(255,255,255,.12)}
.stats-grid .stat:last-child{border:0}
.stats-grid .num{font-size:42px;font-weight:800;font-family:var(--serif);color:#fff}
.stats-grid .num span{color:var(--accent);font-size:24px}
.stats-grid .label{color:#a9c4d8;font-size:14px;margin-top:4px}

/* ---------- 产品卡 ---------- */
.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#cfe0ee}
.product-card .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--bg-soft)}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.product-card:hover .thumb img{transform:scale(1.06)}
.product-card .body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}
.product-card .cat{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:1px}
.product-card h3{margin:8px 0 10px;font-size:19px;color:var(--brand-d)}
.product-card p{color:var(--gray);font-size:14px;margin:0 0 16px;flex:1}
.product-card .more{color:var(--brand);font-weight:600;font-size:14px}
.product-card .more::after{content:" →";transition:.2s}
.product-card:hover .more::after{margin-left:4px}

/* 分类标签 */
.filter{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:40px}
.filter a{padding:9px 22px;border-radius:30px;border:1px solid var(--line);font-size:14.5px;color:var(--gray);background:#fff}
.filter a.active,.filter a:hover{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ---------- 关于（首页） ---------- */
.about-split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.about-split .imgs{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.about-split .imgs img{border-radius:12px;height:100%;object-fit:cover;box-shadow:var(--shadow-sm)}
.about-split .imgs img:first-child{grid-row:span 2;height:100%}
.about-text p{color:var(--gray);margin:0 0 16px}
.feature-list{list-style:none;padding:0;margin:24px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.feature-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px}
.feature-list .ic{flex:none;width:24px;height:24px;border-radius:50%;background:var(--brand-wash);color:var(--brand);display:grid;place-items:center;font-size:13px;font-weight:700}

/* ---------- 资质 ---------- */
.qual-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center;transition:.3s}
.qual-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.qual-card .pic{aspect-ratio:3/4;background:var(--bg-soft);border-radius:8px;overflow:hidden;display:grid;place-items:center;cursor:zoom-in;position:relative}
.qual-card .pic::after{content:"🔍 点击放大";position:absolute;bottom:8px;left:50%;transform:translateX(-50%);background:rgba(2,74,124,.85);color:#fff;font-size:11.5px;padding:3px 10px;border-radius:20px;opacity:0;transition:.25s}
.qual-card .pic:hover::after{opacity:1}
.qual-card .pic img{width:100%;height:100%;object-fit:contain;transition:.3s}
.qual-card .pic:hover img{transform:scale(1.03)}
.qual-card h4{margin:14px 0 4px;font-size:15px;color:var(--brand-d)}
.qual-card .type{font-size:12px;color:var(--accent)}

/* ---------- 案例 ---------- */
.case-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:320px;display:flex;align-items:flex-end;color:#fff}
.case-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:.5s}
.case-card::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 30%,rgba(1,40,68,.92))}
.case-card:hover img{transform:scale(1.08)}
.case-card .meta{position:relative;padding:26px;z-index:2}
.case-card .meta .tag{font-size:12px;background:var(--accent);padding:4px 10px;border-radius:20px}
.case-card .meta h3{margin:12px 0 6px;font-size:20px}
.case-card .meta p{margin:0;font-size:13.5px;color:#cfe0ee}

/* ---------- 新闻 ---------- */
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.news-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.news-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.news-card:hover .thumb img{transform:scale(1.06)}
.news-card .body{padding:20px 22px}
.news-card .date{font-size:12.5px;color:var(--accent);font-weight:600}
.news-card h3{margin:8px 0 10px;font-size:18px;color:var(--brand-d);line-height:1.45}
.news-card p{color:var(--gray);font-size:14px;margin:0}

/* CTA 区 */
.cta-band{background:linear-gradient(120deg,var(--brand),var(--brand-l));color:#fff;border-radius:20px;padding:50px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-60px;bottom:-60px;width:280px;height:280px;background:radial-gradient(circle,rgba(232,130,30,.35),transparent 65%)}
.cta-band h3{font-family:var(--serif);font-size:28px;margin:0 0 8px}
.cta-band p{margin:0;color:#d6e6f2}
.cta-band .right{position:relative;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页内 banner ---------- */
.page-banner{background:linear-gradient(120deg,#02375c,#024a7c);color:#fff;padding:60px 0;position:relative;overflow:hidden}
.page-banner::before{content:"";position:absolute;inset:0;background-image:url('../images/grid.svg');opacity:.16}
.page-banner h1{position:relative;font-family:var(--serif);font-size:36px;margin:0 0 8px}
.page-banner .crumb{position:relative;color:#bcd4e6;font-size:14px}
.page-banner .crumb a{color:#bcd4e6}
.page-banner .crumb a:hover{color:#fff}

/* ---------- 详情正文（Markdown） ---------- */
.article-body{font-size:16.5px;color:#27333f;line-height:1.95}
.article-body h1,.article-body h2,.article-body h3,.article-body h4{font-family:var(--serif);color:var(--brand-d);line-height:1.4;margin:1.8em 0 .7em}
.article-body h2{font-size:25px;border-left:4px solid var(--accent);padding-left:14px}
.article-body h3{font-size:20px}
.article-body p{margin:0 0 1.1em}
.article-body img{border-radius:10px;margin:1.2em 0;box-shadow:var(--shadow-sm)}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.1em}
.article-body li{margin:.4em 0}
.article-body blockquote{margin:1.4em 0;padding:14px 20px;background:var(--brand-wash);border-left:4px solid var(--brand);border-radius:0 8px 8px 0;color:#33617f}
.article-body pre.code{background:#0f2535;color:#d6e6f2;padding:18px 20px;border-radius:10px;overflow:auto;font-size:14px;line-height:1.6;margin:1.2em 0}
.article-body code{background:#eef3f7;color:var(--brand-d);padding:2px 7px;border-radius:5px;font-size:.9em}
.article-body pre.code code{background:none;color:inherit;padding:0}
.article-body .table-wrap{overflow:auto;margin:1.3em 0}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px}
.article-body th{background:var(--brand);color:#fff;padding:11px 14px;text-align:left}
.article-body td{padding:10px 14px;border:1px solid var(--line)}
.article-body tr:nth-child(even) td{background:var(--bg-soft)}
.article-body .mermaid{text-align:center;margin:1.4em 0}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:2em 0}

/* 详情布局 */
.detail-wrap{display:grid;grid-template-columns:1fr 320px;gap:46px;align-items:start}
.detail-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px}
.detail-main h1.title{font-family:var(--serif);font-size:30px;color:var(--brand-d);margin:0 0 14px;line-height:1.35}
.detail-meta{color:var(--gray);font-size:13.5px;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:26px;display:flex;gap:20px;flex-wrap:wrap}
.sidebar .widget{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:24px}
.sidebar .widget h4{margin:0 0 16px;font-size:17px;color:var(--brand-d);padding-bottom:10px;border-bottom:2px solid var(--brand-wash)}
.side-list a{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);align-items:center}
.side-list a:last-child{border:0}
.side-list img{width:64px;height:48px;object-fit:cover;border-radius:6px;flex:none}
.side-list span{font-size:14px;color:var(--ink);line-height:1.5}
.side-list a:hover span{color:var(--brand)}
.prevnext{display:flex;justify-content:space-between;gap:20px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line);font-size:14.5px}
.prevnext a:hover{color:var(--brand)}

/* 产品详情 */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.product-detail .gal img{border-radius:var(--radius);width:100%;box-shadow:var(--shadow-sm)}
.product-detail .info .cat{color:var(--accent);font-weight:700;letter-spacing:1px}
.product-detail .info h1{font-family:var(--serif);font-size:30px;color:var(--brand-d);margin:8px 0 6px}
.product-detail .info .model{color:var(--gray);font-size:14px;margin-bottom:18px}
.spec-table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px}
.spec-table td{padding:11px 14px;border:1px solid var(--line)}
.spec-table td:first-child{background:var(--bg-soft);font-weight:600;color:var(--brand-d);width:130px}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:46px}
.contact-info .item{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line)}
.contact-info .ic{flex:none;width:46px;height:46px;border-radius:12px;background:var(--brand-wash);color:var(--brand);display:grid;place-items:center;font-size:20px}
.contact-info h4{margin:0 0 4px;font-size:16px;color:var(--brand-d)}
.contact-info p{margin:0;color:var(--gray);font-size:14.5px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow-sm)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:14px;font-weight:600;color:#334;margin-bottom:6px}
.form-field input,.form-field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:9px;font-size:15px;font-family:inherit}
.form-field input:focus,.form-field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(2,74,124,.12)}
.alert{padding:12px 16px;border-radius:9px;margin-bottom:18px;font-size:14.5px}
.alert.success{background:#ecfdf5;color:#047857}
.alert.error{background:#fef2f2;color:#b91c1c}

/* 相册 */
.gallery-group{margin-bottom:50px}
.gallery-group h3{font-family:var(--serif);font-size:22px;color:var(--brand-d);margin:0 0 22px;display:flex;align-items:center;gap:12px}
.gallery-group h3::before{content:"";width:5px;height:22px;background:var(--accent);border-radius:3px}
.masonry{columns:4;column-gap:16px}
.masonry img{width:100%;margin-bottom:16px;border-radius:10px;break-inside:avoid;box-shadow:var(--shadow-sm);cursor:pointer;transition:.3s}
.masonry img:hover{transform:scale(1.02);box-shadow:var(--shadow)}

/* 分页 */
.pager{display:flex;justify-content:center;gap:10px;margin-top:46px}
.pager a,.pager span{padding:9px 16px;border:1px solid var(--line);border-radius:8px;font-size:14px;color:var(--gray);background:#fff}
.pager a:hover{border-color:var(--brand);color:var(--brand)}
.pager .cur{background:var(--brand);color:#fff;border-color:var(--brand)}

/* 返回顶部 */
.back-top{position:fixed;right:26px;bottom:26px;width:48px;height:48px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:22px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(10px);transition:.3s;cursor:pointer;z-index:60}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}

/* 页脚 */
.site-footer{background:#0c2233;color:#9fb6c8;font-size:14.5px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding:60px 0 46px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand img{height:38px;background:#fff;border-radius:6px;padding:3px}
.footer-brand strong{color:#fff;font-size:16px;font-family:var(--serif)}
.footer-col h4{color:#fff;font-size:16px;margin:0 0 18px}
.footer-col a{display:block;padding:6px 0;color:#9fb6c8}
.footer-col a:hover{color:var(--accent)}
.footer-contact p{margin:6px 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;font-size:13px}
.footer-bottom .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.footer-bottom a{color:#9fb6c8}

/* 动画 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  .hero-inner,.about-split,.detail-wrap,.product-detail,.contact-grid{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .masonry{columns:2}
  .hero h1{font-size:36px}
  .hero-inner{padding:60px 0 70px}
  .hero-slider{width:200px;left:-12px;height:92px}
  .hero-slide .cap-top{font-size:20px}
  .hero-slide img{width:60px;height:60px}
}
@media (max-width:760px){
  .nav-toggle{display:block}
  .main-nav{position:fixed;top:116px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:14px 24px;gap:0;border-top:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-130%);transition:.3s;max-height:80vh;overflow:auto}
  .main-nav.open{transform:none}
  .main-nav>a,.has-sub>a{padding:13px 6px;border-bottom:1px solid var(--line)}
  .has-sub .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 8px 14px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .sec-title{font-size:27px}
  .cta-band{flex-direction:column;text-align:center;padding:34px}
  .section{padding:54px 0}
  .topbar-inner span:first-child{display:none}
  .gov-logo{height:38px}
  .brand-text strong{font-size:18px}
  /* Hero 移动端：电话+微信块改纵向，小相框稍微缩小 */
  .hero-contact{flex-direction:column;gap:12px}
  .hero-tel,.hero-wechat{width:100%}
  .hero-slider{width:170px;left:auto;right:12px;bottom:12px;height:78px}
  .hero-slide{padding:10px}
  .hero-slide img{width:50px;height:50px}
  .hero-slide .cap-top{font-size:18px}
  .hero-slide .cap-bottom{font-size:11.5px}
  .hero-slider-dots{display:none}
}

/* ====== 批次 3 新增 ====== */

/* 全局图片灯箱（资质 / 相册 / 任何带 data-lightbox 的图片） */
.lightbox{position:fixed;inset:0;background:rgba(2,30,52,.92);display:none;align-items:center;justify-content:center;z-index:200;padding:30px}
.lightbox.show{display:flex}
.lightbox img{max-width:92%;max-height:88vh;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5);background:#fff}
.lightbox .lb-close{position:absolute;top:24px;right:34px;font-size:42px;color:#fff;cursor:pointer;line-height:1;user-select:none;opacity:.8;transition:.2s}
.lightbox .lb-close:hover{opacity:1;transform:rotate(90deg)}

/* 关于 + 联系 合并页：联系方式卡片 + 微信二维码 */
.contact-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow-sm)}
.contact-block .item{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px dashed var(--line)}
.contact-block .item:last-child{border:0}
.contact-block .item .ic{width:42px;height:42px;border-radius:10px;background:var(--brand-wash);color:var(--brand);display:grid;place-items:center;font-size:20px;flex:none}
.contact-block .item h4{margin:0;font-size:14.5px;color:var(--gray);font-weight:500}
.contact-block .item p{margin:4px 0 0;font-size:16px;color:var(--ink);font-weight:600}
.contact-block .qr-row{display:flex;gap:18px;align-items:center;padding:16px 0}
.contact-block .qr-row img{width:120px;height:120px;border:1px solid var(--line);border-radius:10px;padding:6px;background:#fff;object-fit:contain}
.contact-block .qr-row .qr-tip strong{display:block;font-size:14.5px;color:var(--gray);font-weight:500;margin-bottom:4px}
.contact-block .qr-row .qr-tip span{font-size:17px;color:var(--brand-d);font-weight:700;letter-spacing:1px}

/* ====== 批次 4：工程案例双形式 ====== */

/* 年份筛选条 */
.case-filter{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 22px;padding:14px 0;border-bottom:1px solid var(--line)}
.filter-chip{background:#fff;border:1px solid var(--line);color:var(--gray);padding:7px 16px;border-radius:30px;font-size:13.5px;cursor:pointer;transition:.2s;font-family:inherit}
.filter-chip:hover{border-color:var(--brand);color:var(--brand)}
.filter-chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* 案例表格 */
.case-table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.case-table{width:100%;border-collapse:collapse;font-size:14.5px}
.case-table thead{background:linear-gradient(180deg,#f8fbfd,#eef4f9)}
.case-table th{text-align:left;padding:14px 18px;font-size:13px;color:var(--brand-d);font-weight:600;letter-spacing:.5px;border-bottom:1.5px solid var(--brand-wash)}
.case-table td{padding:13px 18px;border-bottom:1px solid #eef2f6;color:var(--ink);transition:.18s}
.case-table tbody tr{cursor:pointer;transition:.18s}
.case-table tbody tr:hover td{background:var(--brand-wash);color:var(--brand-d)}
.case-table tbody tr:last-child td{border-bottom:0}
.case-table .col-year{color:var(--accent);font-weight:700;font-family:var(--serif);font-size:15px}
.case-table .col-title{font-weight:500}
.case-table .col-client,.case-table .col-loc{color:var(--gray);font-size:13.5px}
.case-table .col-type{color:var(--gray);font-size:13px}

/* 表格中的精选小标 */
.case-badge{display:inline-block;margin-left:8px;background:linear-gradient(135deg,#ffb454,var(--accent));color:#fff;font-size:11px;padding:1px 8px;border-radius:10px;font-weight:600;letter-spacing:.3px;vertical-align:1px}

.case-empty{text-align:center;padding:50px 0;color:#94a3b8}

/* 响应式：移动端表格 */
@media (max-width:760px){
  .case-table th,.case-table td{padding:11px 12px;font-size:13.5px}
  /* 客户列在窄屏隐藏（信息密度太高） */
  .case-table .col-client,.case-table th:nth-child(3){display:none}
  /* 类型列在窄屏也隐藏 */
  .case-table .col-type,.case-table th:nth-child(5){display:none}
  .case-table .col-year{font-size:14px}
  .filter-chip{padding:6px 12px;font-size:12.5px}
}
@media (max-width:480px){
  /* 极窄屏：地点也隐藏，只剩"年份 + 项目名" */
  .case-table .col-loc,.case-table th:nth-child(4){display:none}
}

  position: absolute;
  top: 20px;
  right: 30px;
  color: #fff;
  font-size: 14px;
  opacity: .7;
}
/* === 导航栏高度和logo放大 === */
.site-header .header-inner {
  height: 78px !important;
}
.site-header .gov-logo {
  height: 48px !important;
}
.site-header .brand-logo {
  height: 46px !important;
}

/* === 微信卡片点击放大 === */
.hero-wechat {
  cursor: pointer;
  position: relative;
}
.hero-wechat img {
  transition: transform .3s ease;
}
.hero-wechat:hover img {
  transform: scale(1.05);
}

/* 放大弹窗 */
.wechat-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,.85);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}
.wechat-modal.active {
  display: flex;
}
.wechat-modal img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.wechat-modal .close-hint {
  position: absolute;
  top: 20px;
  right: 30px;
  color: #fff;
  font-size: 14px;
  opacity: .7;
}

/* === 导航栏高度和logo放大 === */
.site-header .header-inner {
  height: 78px !important;
}
.site-header .gov-logo {
  height: 48px !important;
}
.site-header .brand-logo {
  height: 46px !important;
}

/* === Logo放大 === */
.site-header .header-inner {
  overflow: visible !important;
}
.site-header .brand {
  overflow: visible !important;
}
.site-header .gov-logo {
  height: 80px !important;
}
.site-header .brand-logo {
  height: 78px !important;
}

/* === 导航栏微调 === */
.site-header .header-inner {
  height: 80px !important;
}
.site-header .brand-text strong {
  font-size: 28px !important;
  font-family: SimHei, Microsoft YaHei, sans-serif !important;
}
.site-header .brand-text small {
  font-size: 13.5px !important;
}
.site-header .main-nav > a,
.site-header .has-sub > a {
  font-size: 20px !important;
}





/* === 导航栏布局 === */
.site-header {
  width: 100% !important;
  margin: 0 !important;
}
.site-header .container {
  max-width: none !important;
  width: 100% !important;
  margin: 0 !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}
.header-inner {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
}
.brand {
  display: flex !important;
  align-items: center !important;
}
.main-nav {
  display: flex !important;
  align-items: center !important;
  margin-left: auto !important;
}


/* === 导航栏黑体 === */
.site-header .main-nav > a,
.site-header .has-sub > a {
  font-family: 'SimHei', 'Microsoft YaHei', sans-serif !important;
}

/* === 移动端适配：仅手机端生效，不影响PC === */
@media (max-width: 760px) {
  html,
  body {
    overflow-x: hidden !important;
  }

  /* 顶部蓝色条：压缩高度，左侧欢迎语隐藏，右侧保留管理入口/电话 */
  .topbar {
    height: 44px !important;
    overflow: hidden !important;
  }
  .topbar .container,
  .topbar-inner {
    width: 100% !important;
    max-width: none !important;
    height: 44px !important;
    padding-left: 14px !important;
    padding-right: 14px !important;
    margin: 0 !important;
    box-sizing: border-box !important;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
    font-size: 14px !important;
  }
  .topbar-inner > span:first-child {
    display: none !important;
  }
  .topbar-right {
    margin-left: auto !important;
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    white-space: nowrap !important;
  }

  /* 白色导航栏：logo+名称靠左，菜单按钮靠右，禁止横向撑爆 */
  .site-header .container,
  .site-header .header-inner {
    width: 100% !important;
    max-width: none !important;
    height: 72px !important;
    min-height: 72px !important;
    padding-left: 14px !important;
    padding-right: 14px !important;
    margin: 0 !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
  .site-header .header-inner {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
  }
  .site-header .brand {
    flex: 1 1 auto !important;
    min-width: 0 !important;
    max-width: calc(100% - 52px) !important;
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    overflow: hidden !important;
  }
  .site-header .gov-logo,
  .site-header .brand-logo {
    height: 48px !important;
    width: auto !important;
    max-width: 48px !important;
    object-fit: contain !important;
    flex: 0 0 auto !important;
  }
  .site-header .brand-text {
    min-width: 0 !important;
    overflow: hidden !important;
    display: block !important;
  }
  .site-header .brand-text strong {
    font-size: 20px !important;
    line-height: 1.15 !important;
    max-width: 100% !important;
    display: block !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
  }
  .site-header .brand-text small {
    display: none !important;
  }
  .site-header .nav-toggle {
    display: block !important;
    flex: 0 0 42px !important;
    width: 42px !important;
    height: 42px !important;
    margin-left: 10px !important;
    font-size: 30px !important;
    line-height: 42px !important;
    text-align: center !important;
  }
  .site-header .main-nav {
    top: 116px !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    max-width: none !important;
    box-sizing: border-box !important;
  }

  /* 首屏Hero：降低字号、控制按钮，避免横向溢出 */
  .hero {
    overflow: hidden !important;
  }
  .hero .container,
  .hero-inner {
    width: 100% !important;
    max-width: none !important;
    box-sizing: border-box !important;
    padding-left: 18px !important;
    padding-right: 18px !important;
  }
  .hero-inner {
    display: block !important;
    padding-top: 42px !important;
    padding-bottom: 48px !important;
  }
  .hero h1 {
    font-size: 38px !important;
    line-height: 1.16 !important;
    margin-bottom: 18px !important;
    word-break: normal !important;
    overflow-wrap: break-word !important;
  }
  .hero p.lead {
    font-size: 17px !important;
    line-height: 1.75 !important;
    max-width: 100% !important;
  }
  .hero-actions {
    display: flex !important;
    gap: 12px !important;
    flex-wrap: nowrap !important;
  }
  .hero-actions .btn {
    flex: 1 1 0 !important;
    min-width: 0 !important;
    padding: 14px 10px !important;
    font-size: 16px !important;
    text-align: center !important;
    white-space: nowrap !important;
  }
  .hero-visual {
    margin-top: 28px !important;
  }
}

@media (max-width: 480px) {
  .site-header .brand-text strong {
    font-size: 19px !important;
  }
  .hero h1 {
    font-size: 34px !important;
  }
  .hero-actions {
    flex-direction: column !important;
  }
}

/* === 移动端底部适配：避免文字竖排和横向溢出 === */
@media (max-width: 760px) {
  .site-footer {
    overflow: hidden !important;
    font-size: 14px !important;
  }
  .site-footer .container,
  .footer-grid {
    width: 100% !important;
    max-width: none !important;
    box-sizing: border-box !important;
    padding-left: 18px !important;
    padding-right: 18px !important;
    margin: 0 !important;
  }
  .footer-grid {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 24px !important;
    padding-top: 36px !important;
    padding-bottom: 28px !important;
  }
  .footer-col,
  .footer-about,
  .footer-contact {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
    display: block !important;
  }
  .footer-brand {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    margin-bottom: 12px !important;
  }
  .footer-brand img {
    width: 42px !important;
    height: 42px !important;
    object-fit: contain !important;
    flex: 0 0 auto !important;
  }
  .footer-brand strong,
  .footer-col h4,
  .footer-col a,
  .footer-col p,
  .footer-contact p,
  .footer-bottom span,
  .footer-bottom a {
    writing-mode: horizontal-tb !important;
    text-orientation: mixed !important;
    white-space: normal !important;
    word-break: normal !important;
    overflow-wrap: break-word !important;
    letter-spacing: normal !important;
    line-height: 1.7 !important;
  }
  .footer-brand strong {
    flex: 1 1 auto !important;
    min-width: 0 !important;
    font-size: 16px !important;
  }
  .footer-col h4 {
    font-size: 17px !important;
    margin-bottom: 10px !important;
  }
  .footer-col a {
    display: inline-block !important;
    margin-right: 12px !important;
    padding: 4px 0 !important;
  }
  .footer-contact p {
    margin: 5px 0 !important;
  }
  .footer-bottom .container {
    display: block !important;
    padding-top: 14px !important;
    padding-bottom: 14px !important;
  }
  .footer-bottom span {
    display: block !important;
    margin-bottom: 6px !important;
  }
}

/* === PC端恢复导航栏两侧留白 === */
@media (min-width: 761px) {
  .site-header .container {
    max-width: 1200px !important;
    width: auto !important;
    margin-left: auto !important;
    margin-right: auto !important;
    padding-left: 24px !important;
    padding-right: 24px !important;
  }
}

/* === 移动端完整显示企业名称 === */
@media (max-width: 760px) {
  .site-header .container,
  .site-header .header-inner {
    height: 84px !important;
    min-height: 84px !important;
    overflow: visible !important;
  }
  .site-header .brand {
    max-width: calc(100% - 50px) !important;
    overflow: visible !important;
  }
  .site-header .brand-text {
    overflow: visible !important;
  }
  .site-header .brand-text strong {
    font-size: 17px !important;
    line-height: 1.25 !important;
    white-space: normal !important;
    overflow: visible !important;
    text-overflow: clip !important;
    display: block !important;
  }
}

/* === PC端导航栏固定80px留白 === */
@media (min-width: 761px) {
  .site-header .container {
    max-width: none !important;
    width: 100% !important;
    margin: 0 !important;
    padding-left: 80px !important;
    padding-right: 80px !important;
    box-sizing: border-box !important;
  }
}

/* === 底部品牌名称宋体 === */
.footer-brand strong {
  font-family: SimSun, '宋体', serif !important;
}