/* ============================================================
   环气通官网 全站统一样式 site.css
   仿行业视觉视觉体系 — 蓝主色 + 青绿点缀
   首页与所有内页共用，保证跳转视觉一体
   ============================================================ */
:root{
  --blue:#0a4d8c;
  --blue-dark:#073a68;
  --blue-deep:#063a68;
  --blue-light:#eaf2fb;
  --cyan:#7be0c9;
  --green:#0e9f8a;
  --green-light:#e8f7f4;
  --orange:#f5a623;
  --ink:#1c2b3a;
  --ink-soft:#4a5568;
  --gray:#5b6b7b;
  --line:#e3e9f0;
  --bg:#f6f8fb;
  --white:#ffffff;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--blue-deep);color:#cfe0f2;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px;flex-wrap:wrap}
.topbar b{color:#fff;font-weight:600}
.topbar .tb-right{display:flex;gap:18px;align-items:center}
.topbar .tb-right a{color:#cfe0f2}
.topbar .tb-right a:hover{color:#fff}
.topbar .lang{display:inline-block;margin-left:6px;background:var(--blue);color:#fff!important;padding:2px 10px;border-radius:6px;font-size:12px}

/* ---------- 主导航（8 菜单 + 产品中心下拉） ---------- */
.nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;box-shadow:0 2px 10px rgba(10,77,140,.05)}
.nav .container{display:flex;align-items:center;height:72px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .logo{width:42px;height:42px}
.brand img.brand-logo{height:48px;width:auto;display:block}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);line-height:1.15}
.brand-text small{display:block;font-size:11px;color:var(--ink-soft);font-weight:400;letter-spacing:1px}
.menu{display:flex;align-items:center;gap:26px;margin-left:auto}
.menu>li{position:relative;height:72px;display:flex;align-items:center}
.menu>li>a{color:var(--ink);font-size:16px;font-weight:500;position:relative;padding:6px 2px;white-space:nowrap}
.menu>li>a:hover{color:var(--blue)}
.menu>li>a.active{color:var(--blue);font-weight:700}
.menu>li>a.active::after{content:"";position:absolute;bottom:-4px;left:0;right:0;height:3px;background:var(--blue);border-radius:2px}
.menu .has-sub>a::after{content:"▾";font-size:11px;margin-left:4px;color:var(--ink-soft)}
.menu .dropdown{position:absolute;top:72px;left:50%;transform:translateX(-50%);background:#fff;min-width:210px;border:1px solid var(--line);border-top:3px solid var(--blue);box-shadow:0 10px 30px rgba(10,77,140,.12);border-radius:0 0 8px 8px;padding:8px 0;display:none;z-index:200}
.menu li:hover .dropdown{display:block}
.menu .dropdown a{display:block;padding:10px 20px;font-size:14px;color:var(--ink);transition:.15s}
.menu .dropdown a:hover{background:var(--blue-light);color:var(--blue);padding-left:24px}
.nav-cta{display:flex;align-items:center;gap:14px;flex-shrink:0}
.tel{color:var(--ink);font-size:13px;text-align:right;line-height:1.3}
.tel b{display:block;font-size:21px;color:var(--blue);font-weight:800;letter-spacing:.5px}
.tel small{color:var(--ink-soft);font-size:12px}
.wa-link{display:inline-flex;align-items:center;gap:5px;color:#1fa855;font-size:13px;font-weight:600}
.wa-link svg{width:16px;height:16px}

/* ---------- 轮播图（首页） ---------- */
.slider{position:relative;overflow:hidden;background:var(--blue-deep);width:100%}
.slides{position:relative;width:100%;aspect-ratio:1872/600;background:#000;overflow:hidden}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .7s ease;z-index:1;cursor:pointer;background:#f0f7ff;display:flex;align-items:center;justify-content:center}
.slide.active{opacity:1;z-index:2}
.slide img{width:100%;height:100%;object-fit:cover;display:block}
.slider .arrow{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:22px;cursor:pointer;z-index:5;display:flex;align-items:center;justify-content:center;transition:.2s}
.slider .arrow:hover{background:rgba(255,255,255,.3)}
.slider .arrow.prev{left:24px}
.slider .arrow.next{right:24px}
.slider .dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.slider .dots span{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:.25s}
.slider .dots span.active{width:28px;border-radius:6px;background:var(--cyan)}

/* ---------- 通用板块标题 ---------- */
.sec{padding:70px 0}
.sec.alt{background:var(--bg)}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head .en{font-size:14px;letter-spacing:3px;color:var(--blue);font-weight:700;text-transform:uppercase;display:block;margin-bottom:8px}
.sec-head h2{font-size:34px;color:var(--ink);font-weight:800;position:relative;display:inline-block}
.sec-head h2::after{content:"";position:absolute;bottom:-12px;left:50%;transform:translateX(-50%);width:52px;height:4px;background:var(--blue);border-radius:2px}
.sec-head p{color:var(--ink-soft);font-size:15px;margin-top:20px;max-width:640px;margin-left:auto;margin-right:auto}

/* ---------- 按钮（统一） ---------- */
.btn{display:inline-block;padding:13px 28px;border-radius:6px;font-size:15px;font-weight:600;transition:.2s;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-1px);box-shadow:0 6px 16px rgba(10,77,140,.3)}
.btn-orange{background:var(--orange);color:#fff}
.btn-orange:hover{background:#e2941a}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-line:hover{background:rgba(255,255,255,.14)}
.btn-ghost{background:#fff;color:var(--blue);border:2px solid var(--blue)}
.btn-ghost:hover{background:var(--blue-light)}

/* ---------- 产品快捷筛选区（首页） ---------- */
.quick-filter{background:var(--bg);border-bottom:1px solid var(--line)}
.quick-filter .container{padding-top:18px;padding-bottom:18px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.quick-filter .search{display:flex;align-items:center;background:#fff;border:1px solid var(--line);border-radius:6px;padding:8px 14px;flex:1;min-width:220px}
.quick-filter .search input{border:0;outline:0;flex:1;font-size:14px;color:var(--ink);font-family:inherit}
.quick-filter .search button{background:none;border:0;cursor:pointer;font-size:16px;color:var(--blue)}
.quick-tags{display:flex;gap:10px;flex-wrap:wrap}
.quick-tags a{font-size:13px;color:var(--ink-soft);background:#fff;border:1px solid var(--line);padding:7px 14px;border-radius:999px;transition:.15s}
.quick-tags a:hover{color:var(--blue);border-color:var(--blue)}

/* ---------- 关于我们（首页） ---------- */
.about .about-grid{display:flex;gap:50px;align-items:center}
.about .about-txt{flex:1.1}
.about .about-txt h3{font-size:26px;color:var(--ink);margin-bottom:16px}
.about .about-txt p{color:var(--ink-soft);font-size:15px;margin-bottom:14px}
.about .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:28px 0}
.about .stat{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;text-align:center;transition:.2s}
.about .stat:hover{box-shadow:0 8px 24px rgba(10,77,140,.1);transform:translateY(-3px)}
.about .stat b{display:block;font-size:30px;color:var(--blue);font-weight:800}
.about .stat span{font-size:13px;color:var(--ink-soft)}
.about .about-img{flex:.9;border-radius:14px;overflow:hidden;box-shadow:0 16px 40px rgba(10,77,140,.14)}
.about .about-img img{width:100%;height:100%;object-fit:cover}

/* ---------- 解决方案（首页） ---------- */
.solution{background:linear-gradient(135deg,var(--blue-deep),var(--blue));color:#fff}
.solution .sec-head .en{color:var(--cyan)}
.solution .sec-head h2{color:#fff}
.solution .sec-head h2::after{background:var(--cyan)}
.solution .sec-head p{color:#cfe0f2}
.solution .sol-nums{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:10px}
.solution .sol-num{text-align:center;padding:26px 10px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:rgba(255,255,255,.06)}
.solution .sol-num b{font-size:40px;font-weight:800;color:var(--cyan);display:block}
.solution .sol-num span{font-size:14px;color:#d6e6f5}

/* ---------- 合作客户（首页） ---------- */
.clients .logos{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.clients .logos .chip{background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 24px;font-size:15px;color:var(--ink-soft);font-weight:500}

/* ---------- 热销推荐产品（首页）+ 产品卡片通用 ---------- */
.hot{background:var(--bg)}
.hot-grid,.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.prod,.pcard,.prod-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.prod:hover,.pcard:hover,.prod-card:hover{box-shadow:0 14px 34px rgba(10,77,140,.14);transform:translateY(-5px)}
.prod .ph,.pcard .pic,.prod-card .ph{height:190px;overflow:hidden;background:#eef3f9;display:flex;align-items:center;justify-content:center;position:relative}
.prod .ph img,.pcard .pic img,.prod-card .ph img{width:100%;height:100%;object-fit:cover;transition:.4s}
.prod:hover .ph img,.pcard:hover .pic img,.prod-card:hover .ph img{transform:scale(1.06)}
.pmodel{position:absolute;top:12px;left:12px;background:var(--blue);color:#fff;font-size:12px;font-weight:700;padding:4px 10px;border-radius:5px;letter-spacing:.5px}
.prod .body,.pcard .body,.prod-card .body{padding:18px;flex:1;display:flex;flex-direction:column}
.prod .body h3,.pcard h4,.prod-card h3{font-size:16px;color:var(--ink);margin-bottom:8px;font-weight:700;line-height:1.4}
.prod .body p,.pcard p,.prod-card p{font-size:13px;color:var(--ink-soft);flex:1;line-height:1.6}
.prod .more{margin-top:14px;font-size:13px;color:var(--blue);font-weight:600}
.prod .more:hover{text-decoration:underline}
.hot .more-all{text-align:center;margin-top:36px}

/* ---------- 新闻资讯（首页 + 列表） ---------- */
.news .news-tabs{display:flex;justify-content:center;gap:10px;margin-bottom:34px}
.news .news-tabs a{font-size:14px;color:var(--ink-soft);padding:8px 22px;border-radius:999px;border:1px solid var(--line)}
.news .news-tabs a.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.news-grid,.news .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.news-item,.news .n{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.news-item:hover,.news .n:hover{box-shadow:0 10px 28px rgba(10,77,140,.12);transform:translateY(-4px)}
.news-item .ph,.news .n .pic{height:160px;overflow:hidden}
.news-item .ph img,.news .n .pic img{width:100%;height:100%;object-fit:cover;transition:.4s}
.news-item:hover .ph img,.news .n:hover .pic img{transform:scale(1.05)}
.news-item .body,.news .n .body{padding:16px}
.news-item .body h3,.news .n h4{font-size:15px;color:var(--ink);line-height:1.5;margin-bottom:8px;font-weight:700}
.news-item .body p,.news .n p{font-size:13px;color:var(--ink-soft)}
.news .n .date{font-size:13px;color:var(--green);font-weight:600;margin-bottom:6px}

/* ---------- CTA 横幅 ---------- */
.cta{background:linear-gradient(135deg,var(--blue-deep),var(--blue));color:#fff;text-align:center;padding:60px 0}
.cta h2{font-size:30px;font-weight:800;margin-bottom:12px}
.cta p{color:#cfe0f2;font-size:15px;margin-bottom:26px}
.cta .cta-tel{margin-top:16px;font-size:15px;color:#cfe0f2}
.cta .cta-tel b{font-size:26px;color:#fff;font-weight:800;margin-left:8px}
.cta-band{position:relative;background:var(--blue);overflow:hidden;padding:56px 0}
.cta-band .veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,58,104,.92) 0%,rgba(6,58,104,.62) 100%);z-index:1}
.cta-band .container{position:relative;z-index:2;text-align:center}
.cta-band h3{color:#fff;font-size:26px;font-weight:700;margin-bottom:12px}
.cta-band p{color:#cfe0f0;font-size:15px;line-height:1.8;max-width:760px;margin:0 auto 24px}
.cta-band .btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-band .tel-num{color:#fff;font-size:22px;font-weight:700;letter-spacing:.5px}

/* ---------- 页脚 ---------- */
.footer,footer{background:#0b1f33;color:#a8bccd;padding:52px 0 0}
.footer .container,footer .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:40px}
.footer h4,footer h4{color:#fff;font-size:16px;margin-bottom:18px;font-weight:700}
.footer .f-brand .brand-text,footer .brand-line .name{color:#fff}
.footer .f-brand p,footer .about-text{font-size:13px;margin-top:14px;line-height:1.7}
.footer ul li,footer ul li{margin-bottom:10px}
.footer ul li a,footer ul li a{font-size:13.5px;color:#a8bccd;transition:.15s}
.footer ul li a:hover,footer ul li a:hover{color:#fff}
.footer .f-contact li,footer .f-contact li{font-size:13.5px;margin-bottom:12px;display:flex;gap:8px;align-items:flex-start}
.footer .f-contact b,footer .f-contact b{color:#fff}
.footer .wa-btn{display:inline-flex;align-items:center;gap:7px;background:#25d366;color:#fff;font-size:14px;font-weight:700;padding:9px 18px;border-radius:6px;margin-top:6px}
.footer .copyright,footer .copy{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;text-align:center;font-size:13px;color:#7d94a6}

/* ---------- 内页 Hero（产品中心/分类/关于等）—— 浅色版，与首页bar视觉一体 ---------- */
.hero{position:relative;background:linear-gradient(180deg,#f4f8ff 0%,#ffffff 100%);color:var(--ink);overflow:hidden;border-bottom:1px solid var(--line)}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(10,77,140,.08),transparent 65%)}
.hero::before{content:"";position:absolute;left:-80px;bottom:-160px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(123,224,201,.18),transparent 65%)}
.hero .container{position:relative;z-index:2;padding:64px 20px 70px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.h-txt .tag{display:inline-block;background:var(--blue-light);color:var(--blue);border:1px solid rgba(10,77,140,.2);padding:6px 16px;border-radius:999px;font-size:13px;margin-bottom:16px;font-weight:600}
.h-txt h1{font-size:40px;line-height:1.22;margin:0 0 14px;color:var(--blue);font-weight:800}
.h-txt .sub{font-size:16px;line-height:1.85;color:var(--ink-soft);margin:0 0 22px}
.stats{display:flex;flex-wrap:wrap;gap:14px}
.stat{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px;min-width:120px;box-shadow:0 4px 12px rgba(10,77,140,.06)}
.stat b{display:block;color:var(--blue);font-size:17px}
.stat span{font-size:12.5px;color:#6b7280}
.h-img{position:relative}
.h-img img{width:100%;border-radius:14px;box-shadow:0 12px 34px rgba(13,27,42,.12);background:#fff}
.hero .btns{margin-top:24px;display:flex;gap:14px;flex-wrap:wrap}
.hero .hero-img .main{border-radius:18px;box-shadow:0 12px 34px rgba(13,27,42,.12);width:100%}

/* ---------- 数据看板条 ---------- */
.ribbon{background:#fff;box-shadow:0 12px 40px rgba(10,77,140,.08);margin-top:-46px;position:relative;z-index:3;border-radius:16px}
.ribbon .container{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:34px 40px}
.ribbon .cell{display:flex;align-items:center;gap:16px}
.ribbon .num{font-size:38px;font-weight:800;color:var(--blue);line-height:1}
.ribbon .cell span{font-size:14px;color:var(--gray)}
.ribbon .cell span b{display:block;color:var(--ink);font-size:15px;font-weight:600}

/* ---------- 产品中心分组列表 ---------- */
.prod-group{margin-top:60px}
.prod-group:first-child{margin-top:0}
.group-title{display:flex;align-items:center;gap:16px;margin-bottom:28px}
.group-title .idx{width:46px;height:46px;border-radius:12px;background:var(--blue);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:18px;flex:none;box-shadow:0 6px 16px rgba(10,77,140,.25)}
.group-title .idx.g{background:var(--green)}
.group-title .idx.o{background:var(--orange)}
.group-title h3{font-size:22px;font-weight:700;color:var(--ink)}
.group-title p{font-size:13.5px;color:var(--gray);margin-top:3px}

/* ---------- 技术优势 / 应用领域 ---------- */
.tech .grid,.apps .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.apps .grid{grid-template-columns:repeat(4,1fr)}
.tech .item,.apps .app{background:#fff;border:1px solid var(--line);border-radius:16px;padding:34px 28px;transition:.25s}
.apps .app{padding:28px 22px;text-align:center}
.tech .item:hover,.apps .app:hover{border-color:#cfe0f0;box-shadow:0 14px 34px rgba(10,77,140,.10)}
.tech .ico,.apps .app .ico{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;background:var(--blue-light)}
.apps .app .ico{width:50px;height:50px;margin:0 auto 14px}
.tech .ico svg{width:30px;height:30px}
.tech .item h3{font-size:19px;margin-bottom:12px;font-weight:700}
.tech .item p{font-size:14.5px;color:var(--gray)}
.tech .item .key{margin-top:14px;font-size:13px;color:var(--blue);font-weight:600}
.apps .app h4{font-size:16px;font-weight:600;color:var(--ink)}

/* ---------- 原理图解 ---------- */
.prin{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.prin .diagram{background:var(--blue-dark);border-radius:18px;padding:36px;color:#fff}
.prin .diagram h4{font-size:20px;margin-bottom:22px;font-weight:700}
.prin .flow{display:flex;flex-direction:column;gap:12px}
.prin .step{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:10px;padding:14px 18px;font-size:14.5px;display:flex;gap:12px;align-items:flex-start}
.prin .step b{color:var(--cyan);flex:none;width:22px;height:22px;border-radius:50%;background:rgba(14,159,138,.3);display:inline-flex;align-items:center;justify-content:center;font-size:12px}
.prin .text h3{font-size:24px;font-weight:700;margin-bottom:16px}
.prin .text p{color:var(--gray);margin-bottom:14px;font-size:15px}
.prin .text .hl{border-left:3px solid var(--orange);background:var(--bg);padding:14px 18px;border-radius:0 8px 8px 0;font-size:14.5px;color:var(--ink);font-weight:500}

/* ---------- 解决方案（内页） ---------- */
.solutions .grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.solu{position:relative;border-radius:16px;overflow:hidden;min-height:300px;padding:40px;color:#fff;display:flex;flex-direction:column;justify-content:flex-end}
.solu .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.solu .mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,58,104,.15) 0%,rgba(6,58,104,.88) 78%);z-index:1}
.solu .inner{position:relative;z-index:2}
.solu.water{background:linear-gradient(135deg,var(--blue),var(--green))}
.solu h3{font-size:24px;font-weight:700;margin-bottom:12px}
.solu p{font-size:14.5px;color:#e6f0fa;max-width:420px}
.solu .list{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.solu .list span{font-size:12.5px;background:rgba(255,255,255,.16);padding:6px 14px;border-radius:20px}

/* ---------- 现场交付形态 ---------- */
.showcase .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.showcase .sc{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.2s}
.showcase .sc:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(10,77,140,.10)}
.showcase .sc .pic{height:210px;overflow:hidden;background:#f4f7fa;display:flex;align-items:center;justify-content:center}
.showcase .sc .pic img{width:100%;height:100%;object-fit:contain;transition:.35s}
.showcase .sc:hover .pic img{transform:scale(1.05)}
.showcase .sc .body{padding:16px 18px 18px}
.showcase .sc h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:7px}
.showcase .sc p{font-size:13px;color:var(--gray);line-height:1.65}

/* ---------- 联系页 ---------- */
.contact{background:linear-gradient(120deg,var(--blue-deep),var(--blue));color:#fff}
.contact .sec-head .en{color:var(--cyan)}
.contact .sec-head h2{color:#fff}
.contact .sec-head h2::after{background:var(--cyan)}
.contact .sec-head p{color:#bcd4ea}
.contact .wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:flex-start}
.contact .info .row{display:flex;gap:16px;margin-bottom:22px;align-items:flex-start}
.contact .info .row .ic{width:46px;height:46px;border-radius:12px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;flex:none}
.contact .info .row .ic svg{width:22px;height:22px;stroke:var(--cyan)}
.contact .info .row b{display:block;font-size:15px;margin-bottom:2px}
.contact .info .row span{font-size:14.5px;color:#bcd4ea}
.contact .form{background:#fff;border-radius:16px;padding:36px;color:var(--ink)}
.contact .form h3{font-size:20px;margin-bottom:22px;font-weight:700;color:var(--ink)}
.contact .form .f{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact .form input,.contact .form textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:13px 14px;font-size:14.5px;font-family:inherit;color:var(--ink);outline:none;transition:.2s}
.contact .form input:focus,.contact .form textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-light)}
.contact .form textarea{grid-column:1/-1;height:120px;resize:vertical}
.contact .form .full{grid-column:1/-1}

/* ---------- 产品分类顶部横幅（仿云联测控·HQT 系列）---------- */
.cat-banner{background:linear-gradient(135deg,#f4f8ff 0%,#e8f1fc 100%);border-radius:18px;padding:54px 56px;margin:40px auto;max-width:1180px;display:grid;grid-template-columns:1.15fr 1fr;gap:46px;align-items:center;box-shadow:0 6px 28px rgba(10,77,140,.06)}
.cat-banner .cb-tag{display:inline-block;background:var(--blue);color:#fff;font-size:13.5px;font-weight:600;padding:6px 18px;border-radius:999px;margin-bottom:22px;letter-spacing:.3px}
.cat-banner .cb-model{display:block;color:var(--blue);font-size:48px;font-weight:900;line-height:1.1;margin-bottom:14px;letter-spacing:-1px;text-shadow:0 2px 0 rgba(122,224,201,.4)}
.cat-banner .cb-model small{display:block;font-size:30px;font-weight:700;color:#1f3b5e;margin-top:6px;letter-spacing:0}
.cat-banner .cb-sub{font-size:15.5px;color:#3b4a5e;line-height:1.85;margin-bottom:26px}
.cat-banner .cb-feats{list-style:none;padding:0;margin:0 0 30px}
.cat-banner .cb-feats li{font-size:14.5px;color:#1f3b5e;line-height:1.6;padding:6px 0;display:flex;gap:11px;align-items:flex-start}
.cat-banner .cb-feats li::before{content:"✓";display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;background:var(--blue);color:#fff;border-radius:50%;font-size:13px;font-weight:700;flex-shrink:0;margin-top:2px}
.cat-banner .cb-cta{display:flex;gap:14px;flex-wrap:wrap}
.cat-banner .cb-img{position:relative;border-radius:14px;overflow:hidden;background:linear-gradient(135deg,#fff 0%,#dde9f5 100%);min-height:380px;display:flex;align-items:center;justify-content:center;padding:20px}
.cat-banner .cb-img img{max-width:100%;max-height:380px;width:auto;height:auto;object-fit:contain;filter:drop-shadow(0 12px 24px rgba(10,77,140,.18))}
.cat-banner .cb-img-badge{position:absolute;top:18px;right:18px;background:linear-gradient(135deg,#ff8c1a,#ff5e00);color:#fff;font-size:13px;font-weight:700;padding:7px 16px;border-radius:999px;box-shadow:0 4px 14px rgba(255,140,26,.35)}

/* ---------- FAQ ---------- */
.faq .grid,.faq details.wrap{max-width:880px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;transition:.2s}
.faq details:hover,.faq details[open]{border-color:#cfe0f0;box-shadow:0 10px 26px rgba(10,77,140,.08)}
.faq summary{cursor:pointer;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);list-style:none;display:flex;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";flex:none;width:28px;height:28px;border-radius:8px;background:var(--blue-light);color:var(--blue);font-weight:800;display:inline-flex;align-items:center;justify-content:center;font-size:14px}
.faq summary::after{content:"+";margin-left:auto;color:var(--gray);font-size:20px;font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq .a,.faq details p{padding:0 24px 20px 64px;font-size:14.5px;color:var(--gray);line-height:1.85}
.faq .a b{color:var(--ink)}

/* ---------- 型号速查表 ---------- */
.spec-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;box-shadow:0 4px 18px rgba(10,77,140,.05)}
.spec-table{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
.spec-table th{background:var(--blue);color:#fff;font-weight:700;padding:13px 16px;text-align:left;font-size:14px;letter-spacing:.3px}
.spec-table td{padding:12px 16px;border-top:1px solid #e6ecf2;color:#3b4a5e;vertical-align:top}
.spec-table tr:nth-child(even) td{background:#f7fafd}
.spec-table .m{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;color:var(--blue);font-weight:700;white-space:nowrap}
.spec-table .g{font-weight:600;color:#1f3b5e}

/* ---------- 占位提示 ---------- */
.placeholder-note{background:#fff7e8;border:1px solid #f5d9a8;color:#9a6b1f;font-size:13px;padding:12px 18px;border-radius:10px;margin:24px 0 0;line-height:1.6}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  .slide-grid{flex-direction:column;text-align:center}
  .slides{aspect-ratio:1872/600}
  .about .about-grid{flex-direction:column}
  .about .stats{grid-template-columns:repeat(2,1fr)}
  .solution .sol-nums{grid-template-columns:repeat(2,1fr)}
  .hot-grid,.news-grid,.news .grid,.prod-grid{grid-template-columns:repeat(2,1fr)}
  .footer .container,footer .grid{grid-template-columns:1fr 1fr}
  .menu{display:none}
  .hero .container{grid-template-columns:1fr;padding:60px 20px}
  .h-txt h1{font-size:28px}
  .ribbon .container{grid-template-columns:repeat(2,1fr)}
  .tech .grid,.apps .grid,.showcase .grid,.solutions .grid,.prin,.contact .wrap{grid-template-columns:1fr;gap:40px}
  .cat-banner{grid-template-columns:1fr;padding:36px 28px;gap:28px}
  .cat-banner .cb-model{font-size:36px}
  .cat-banner .cb-model small{font-size:24px}
  .cat-banner .cb-img{min-height:240px;padding:14px}
}
@media(max-width:600px){
  .hot-grid,.news-grid,.news .grid,.prod-grid,.tech .grid,.apps .grid,.showcase .grid{grid-template-columns:1fr}
  .about .stats{grid-template-columns:repeat(2,1fr)}
  .footer .container,footer .grid{grid-template-columns:1fr}
  .topbar .container{height:auto;padding:6px 20px;gap:6px}
  .cat-banner{padding:28px 20px}
  .cat-banner .cb-model{font-size:30px}
  .cat-banner .cb-model small{font-size:20px}
  .cat-banner .cb-cta .btn{padding:11px 20px;font-size:13.5px}
  .contact .form .f{grid-template-columns:1fr}
}

/* ============== 关于页新结构 ============== */
.hero-simple{background:#fff;color:var(--ink);padding:60px 0 50px;text-align:center;border-bottom:1px solid var(--line)}
.hero-simple .h-txt{max-width:780px;margin:0 auto}
.hero-simple h1{color:var(--blue);font-size:36px;margin:14px 0 6px}
.hero-simple .sub{font-size:13px;letter-spacing:4px;color:#8896a6}
.hero-simple h1::after{content:"";display:block;width:46px;height:3px;background:var(--blue);margin:18px auto 0;border-radius:2px}

.about-intro{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:flex-start}
.about-txt p{font-size:15px;line-height:1.95;color:#3a4a5e;margin:0 0 14px}
.about-txt b{color:var(--blue);font-weight:700}
.about-img{display:flex;flex-direction:column}

.section-border{background:#f7fafe;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* 我们定位/产品中心 - 卡片可点击 */
.pc-card{position:relative;display:block;text-decoration:none;color:inherit;transition:transform .25s,box-shadow .25s,border-color .25s;cursor:pointer}
.pc-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(10,77,140,.16);border-color:var(--blue)}
.pc-card .pc-icon{width:54px;height:54px;margin-bottom:14px}
.pc-card .pc-icon svg{width:100%;height:100%}
.pc-card h3{color:var(--blue);font-size:18px;margin:0 0 8px}
.pc-card p{font-size:14px;color:var(--ink-soft);line-height:1.7;margin:0}
.pc-card .pc-more{display:inline-block;margin-top:14px;font-size:13px;color:var(--blue);font-weight:600}

/* 制造与交付 - 5卡片grid */
.craft-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.craft-card{background:linear-gradient(180deg,#fff 0%,#f7fafe 100%);border:1px solid var(--line);border-radius:14px;padding:22px 18px;transition:all .25s;position:relative;overflow:hidden}
.craft-card::before{content:"";position:absolute;left:0;top:0;width:4px;height:100%;background:linear-gradient(180deg,var(--cyan),var(--blue));opacity:.7}
.craft-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(10,77,140,.14);border-color:rgba(10,77,140,.18)}
.craft-num{font-size:28px;font-weight:800;line-height:1;color:var(--blue);opacity:.5;margin-bottom:8px;letter-spacing:-1px}
.craft-card h3{font-size:17px;color:var(--ink);margin:6px 0 8px;font-weight:700}
.craft-card p{font-size:13px;color:var(--ink-soft);line-height:1.65;margin:0}

/* 联系页新结构 */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:stretch}
.contact-info{background:#fff;border:1px solid var(--line);border-radius:16px;padding:36px 32px;box-shadow:0 6px 20px rgba(13,27,42,.04)}
.contact-info h2{font-size:24px;color:var(--blue);margin:0 0 12px;line-height:1.4}
.contact-info .brief{font-size:14px;color:#4a5b6f;line-height:1.85;margin:0 0 22px}
.contact-info h3{font-size:22px;color:var(--blue);margin:18px 0 16px;border-top:1px dashed var(--line);padding-top:18px}
.contact-info ul{list-style:none;margin:0;padding:0}
.contact-info li{display:flex;gap:10px;align-items:flex-start;margin:8px 0;font-size:14.5px;color:#3a4a5e;line-height:1.7}
.contact-info li b{display:inline-block;width:84px;color:var(--ink);font-weight:600;flex-shrink:0}
.contact-info li a{color:var(--blue);text-decoration:none}
.contact-info li a:hover{text-decoration:underline}

.contact-form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:36px 32px;box-shadow:0 6px 20px rgba(13,27,42,.04);display:flex;flex-direction:column}
.contact-form h2{font-size:22px;color:var(--blue);margin:0 0 8px}
.contact-form .lead{font-size:13.5px;color:var(--ink-soft);margin:0 0 18px;line-height:1.7}
.contact-form .field{margin-bottom:14px}
.contact-form .field label{display:block;font-size:13px;color:var(--ink);font-weight:600;margin-bottom:6px}
.contact-form .field label::before{content:"*";color:#ef4444;margin-right:2px}
.contact-form .field input,.contact-form .field textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:inherit;outline:none;transition:border-color .15s;background:#fbfcfe;box-sizing:border-box}
.contact-form .field input:focus,.contact-form .field textarea:focus{border-color:var(--blue);background:#fff}
.contact-form .field textarea{min-height:100px;resize:vertical}
.contact-form .submit-row{display:flex;gap:12px;align-items:center;margin-top:8px}
.contact-form .captcha{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 14px;font-size:13px;color:var(--ink)}
.contact-form .captcha .badge{background:linear-gradient(135deg,#7be0c9,#0a4d8c);color:#fff;font-weight:700;border-radius:4px;padding:3px 8px;display:inline-flex;align-items:center;gap:4px}
.contact-form .submit{flex:1;background:var(--blue);color:#fff;border:none;padding:12px 20px;font-size:15px;font-weight:700;border-radius:8px;cursor:pointer;letter-spacing:1px}
.contact-form .submit:hover{background:#0e6bb0}
.contact-form .submit:disabled{opacity:.65;cursor:not-allowed}
/* 选填字段：去掉必填红星 */
.contact-form .field label.optional::before{content:""}
/* 表单提交状态提示 */
.form-msg{display:none;margin-top:14px;padding:12px 16px;border-radius:8px;font-size:14px;line-height:1.7}
.form-msg.wait{background:#f1f6fc;color:var(--ink-soft);border:1px solid #d6e6f5}
.form-msg.ok{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0;font-weight:600}
.form-msg.err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.form-msg a{text-decoration:underline}

/* 联系页地图 */
.map-wrap{margin-top:30px;border-radius:14px;overflow:hidden;height:320px;background:#eef2f7}
.map-wrap iframe{width:100%;height:100%;border:0}

/* 联系页底部调整 */
.contact-row{display:flex;gap:24px;align-items:center;margin-top:16px;padding-top:18px;border-top:1px dashed var(--line)}
.contact-row img{width:108px;height:108px;border:1px solid var(--line);border-radius:8px;padding:4px;background:#fff}
.contact-row .qr{display:flex;flex-direction:column;align-items:center;font-size:13px;color:var(--ink-soft);gap:6px}
.contact-row .qr small{color:#94a3b8;font-size:12px}

@media(max-width:960px){
  .about-intro{grid-template-columns:1fr;gap:24px}
  .craft-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .hero-simple h1{font-size:28px}
}
@media(max-width:600px){
  .craft-grid{grid-template-columns:1fr}
  .contact-info,.contact-form{padding:24px 18px}
  .contact-info h2{font-size:20px}
}

/* ============== 首页新板块：场景区 ============== */
.scenes{background:linear-gradient(180deg,#fafdff 0%,#eef6ff 60%,#fff 100%);padding:60px 0 56px;position:relative;overflow:hidden}
.scenes::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 18% 22%,rgba(123,224,201,.18) 0,transparent 30%),radial-gradient(circle at 82% 78%,rgba(10,77,140,.08) 0,transparent 32%);pointer-events:none}

.scene-top{text-align:center;margin-bottom:36px;position:relative}
.scene-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:24px}
.scene-tag{display:inline-block;padding:8px 18px;border-radius:999px;border:1px solid rgba(10,77,140,.4);background:#fff;color:var(--blue);font-size:14px;font-weight:500;text-decoration:none;transition:all .2s;box-shadow:0 2px 6px rgba(10,77,140,.06)}
.scene-tag:hover{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateY(-2px);box-shadow:0 8px 18px rgba(10,77,140,.22)}
.scene-title{font-size:32px;font-weight:800;color:var(--blue);margin:0 0 10px;letter-spacing:1px}
.scene-title::after{content:"";display:block;width:46px;height:3px;background:linear-gradient(90deg,var(--blue),var(--cyan));margin:14px auto 0;border-radius:2px}
.scene-sub{font-size:15px;color:var(--ink-soft);margin:6px 0 0}

.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-bottom:40px}
.scene-card{text-align:center;text-decoration:none;color:inherit;display:block;transition:transform .25s}
.scene-card:hover{transform:translateY(-6px)}
.scene-circle{width:200px;height:200px;margin:0 auto 14px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#fff 0,#e8f2fc 70%,#d3e5f7 100%);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;box-shadow:0 12px 30px rgba(10,77,140,.15);transition:box-shadow .25s}
.scene-card:hover .scene-circle{box-shadow:0 18px 40px rgba(10,77,140,.28)}
.scene-circle::before{content:"";position:absolute;inset:0;border-radius:50%;background:radial-gradient(circle at 32% 28%,rgba(255,255,255,.8) 0,transparent 40%)}
.scene-circle img{max-width:78%;max-height:78%;object-fit:contain;position:relative;z-index:2;filter:drop-shadow(0 6px 14px rgba(10,77,140,.15))}
.scene-name{font-size:15px;font-weight:600;color:var(--ink);letter-spacing:1px}

.scene-industry{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:0 6px 20px rgba(13,27,42,.04)}
.ind-item{text-align:center;padding:10px 8px;border-right:1px dashed var(--line)}
.ind-item:last-child{border-right:none}
.ind-item b{display:block;font-size:14px;color:var(--blue);font-weight:700;margin-bottom:4px}
.ind-item span{font-size:12px;color:var(--ink-soft);line-height:1.4;display:block}

@media(max-width:960px){
  .scene-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .scene-circle{width:160px;height:160px}
  .scene-industry{grid-template-columns:repeat(3,1fr)}
  .scene-title{font-size:26px}
}
@media(max-width:600px){
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .scene-industry{grid-template-columns:repeat(2,1fr)}
  .ind-item{border-right:none;border-bottom:1px dashed var(--line)}
}


/* ============== 产品中心蓝色主题 ============== */
.page-products .hero{
  background:linear-gradient(120deg,#0a2a52 0%,#0a4d8c 55%,#0e6bb0 100%);
  color:#fff;
}
.page-products .hero .h-txt h1{color:#fff}
.page-products .hero .sub{color:#d6e6f5}
.page-products .hero .tag{
  background:rgba(123,224,201,.18);
  color:#eafff8;
  border:1px solid rgba(123,224,201,.45);
}
.page-products .hero .stat{background:#fff;border-color:#e6ecf2}
.page-products .hero .stat b{color:var(--blue)}
.page-products .hero .btn-primary{
  background:#fff;
  color:var(--blue);
  border-color:#fff;
}
.page-products .hero .btn-primary:hover{
  background:var(--cyan);
  color:#0a2a52;
  border-color:var(--cyan);
}
.page-products .section:first-of-type{background:#f0f7ff}
.page-products .prod-card{
  background:#fff;
  border:1px solid #d6e6f5;
  box-shadow:0 6px 18px rgba(10,77,140,.08);
}
.page-products .prod-card:hover{
  border-color:var(--blue);
  box-shadow:0 14px 34px rgba(10,77,140,.18);
  transform:translateY(-5px);
}
.page-products .prod-card h3{color:#0a2a52}
.page-products .prod-card p{color:#5a6b7d}

/* ============== 技术服务页 ============== */
.page-service .hero-service{
  background:linear-gradient(120deg,#0a2a52 0%,#0e4a85 50%,#0e6bb0 100%);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.page-service .hero-service::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 85% 50%,rgba(123,224,201,.15) 0,transparent 45%),
              radial-gradient(circle at 15% 80%,rgba(255,255,255,.08) 0,transparent 40%);
  pointer-events:none;
}
.page-service .hero-service h1{color:#fff}
.page-service .service-tabs{background:#f7fafd;padding:40px 0 70px}
.tab-bar{display:flex;justify-content:center;gap:0;background:#fff;border-radius:8px;overflow:hidden;width:fit-content;margin:0 auto 36px;border:1px solid var(--line);box-shadow:0 4px 14px rgba(10,77,140,.06)}
.tab-btn{padding:14px 48px;border:none;background:#fff;color:#4a5b6f;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit;letter-spacing:1px}
.tab-btn.active{background:var(--blue);color:#fff}
.tab-btn:hover:not(.active){background:#f0f7ff;color:var(--blue)}
.tab-panel{display:none}
.tab-panel.active{display:block}

.doc-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto}
.doc-row{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid #e4eef7;border-radius:10px;padding:16px 20px;transition:all .2s}
.doc-row:hover{border-color:var(--blue);box-shadow:0 6px 18px rgba(10,77,140,.08)}
.doc-icon{width:40px;height:40px;flex-shrink:0;color:#94a3b8;display:flex;align-items:center;justify-content:center;background:#f5f7fa;border-radius:8px;overflow:hidden}
.doc-icon img{width:28px;height:28px;object-fit:contain;display:block}
.doc-info{flex:1;min-width:0}
.doc-info h4{font-size:15px;color:#0a2a52;margin:0 0 5px;line-height:1.5;font-weight:600}
.doc-info span{font-size:13px;color:#94a3b8}
.doc-dl{flex-shrink:0;font-size:13px;color:var(--blue);font-weight:600;padding:7px 16px;border:1px solid var(--blue);border-radius:6px;text-decoration:none;transition:all .2s;background:#fff}
.doc-dl:hover{background:var(--blue);color:#fff}

.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.service-item{background:#fff;border:1px solid #e4eef7;border-radius:12px;padding:28px 22px;transition:all .2s}
.service-item:hover{border-color:var(--blue);box-shadow:0 12px 28px rgba(10,77,140,.12);transform:translateY(-4px)}
.service-num{font-size:36px;font-weight:800;color:var(--blue);opacity:.18;line-height:1;margin-bottom:10px}
.service-item h3{font-size:18px;color:#0a2a52;margin:0 0 10px}
.service-item p{font-size:14px;color:#5a6b7d;line-height:1.7;margin:0}

.pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:36px}
.pagination a{padding:8px 14px;border:1px solid #d6e6f5;border-radius:6px;text-decoration:none;color:#4a5b6f;font-size:13px;background:#fff;transition:all .2s}
.pagination a.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.pagination a.disabled{color:#b0c0d0;pointer-events:none;background:#f5f7fa}
.pagination a:hover:not(.active):not(.disabled){border-color:var(--blue);color:var(--blue)}

@media(max-width:960px){
  .pdf-grid,.service-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .pdf-grid,.service-grid{grid-template-columns:1fr}
  .tab-btn{padding:12px 24px;font-size:14px}
}

/* ============== 首页：6项服务承诺 ============== */
.service-bar{background:linear-gradient(90deg,#0a4d8c 0%,#0e6bb0 50%,#0a4d8c 100%);padding:18px 0}
.service-bar .container{display:flex;justify-content:center;gap:36px;flex-wrap:wrap}
.service-bar a{color:#fff;text-decoration:none;font-size:15px;font-weight:500;opacity:.95;transition:opacity .2s;position:relative;white-space:nowrap}
.service-bar a::before{content:"✓";display:inline-block;width:18px;height:18px;background:var(--cyan);color:#0a2a52;border-radius:50%;font-size:11px;line-height:18px;text-align:center;margin-right:8px;font-weight:700}
.service-bar a:hover{opacity:1;color:var(--cyan)}

/* ============== 首页：热销横向滚动 ============== */
.hot-scroll{background:#fff}
.hot-scroll .sec-head h2{font-size:32px;color:var(--blue);margin:0 0 8px;text-align:center}
.hot-scroll .sec-head p{font-size:13px;color:#94a3b8;letter-spacing:2px;text-align:center;margin:0 0 32px}
.hot-track-wrap{position:relative;display:flex;align-items:center;gap:14px}
.hot-track{display:flex;gap:18px;overflow-x:auto;scroll-behavior:smooth;scroll-snap-type:x mandatory;padding:10px 4px 20px;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:var(--blue) #e4eef7}
.hot-track::-webkit-scrollbar{height:6px}
.hot-track::-webkit-scrollbar-track{background:#e4eef7;border-radius:3px}
.hot-track::-webkit-scrollbar-thumb{background:var(--blue);border-radius:3px}
.hot-card{flex:0 0 220px;scroll-snap-align:start;background:#fff;border:1px solid #e4eef7;border-radius:14px;padding:16px;text-decoration:none;color:inherit;transition:all .25s;text-align:center}
.hot-card:hover{border-color:var(--blue);box-shadow:0 14px 34px rgba(10,77,140,.16);transform:translateY(-5px)}
.hot-ph{height:150px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;background:#f7fafd;border-radius:10px;overflow:hidden}
.hot-ph img{max-width:92%;max-height:92%;object-fit:contain;transition:transform .3s}
.hot-card:hover .hot-ph img{transform:scale(1.05)}
.hot-card h4{font-size:15px;color:#0a2a52;margin:0 0 6px;line-height:1.4;min-height:44px;display:flex;align-items:center;justify-content:center}
.hot-card span{font-size:13px;color:var(--blue);font-weight:600}
.hot-tag{position:absolute;top:8px;left:8px;background:linear-gradient(135deg,#ff6b35,#ff3a3a);color:#fff;font-size:11px;font-weight:700;padding:3px 8px;border-radius:4px;letter-spacing:1px;z-index:2;box-shadow:0 2px 6px rgba(255,58,58,.3)}
.hot-card{position:relative}
.hot-arrow{width:42px;height:42px;border-radius:50%;border:1px solid #d6e6f5;background:#fff;color:var(--blue);font-size:22px;cursor:pointer;flex-shrink:0;transition:all .2s;display:flex;align-items:center;justify-content:center}
.hot-arrow:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

@media(max-width:960px){
  .service-bar .container{gap:18px 28px}
  .service-bar a{font-size:14px}
  .hot-card{flex:0 0 180px}
  .hot-ph{height:120px}
}
@media(max-width:600px){
  .hot-arrow{display:none}
  .hot-card{flex:0 0 160px;padding:12px}
}

/* ===== 产品实拍 / 应用图集（图片补位） ===== */
.pic-sec{background:#f6f9fc}





@media(max-width:640px){}

/* === pic-row：图片卡片网格（技术服务页场景图 等） === */
.pic-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1200px;margin:30px auto 0;padding:0 20px}
.pic-row figure{margin:0;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 12px rgba(0,30,80,.08);transition:transform .25s ease,box-shadow .25s ease}
.pic-row figure:hover{transform:translateY(-4px);box-shadow:0 6px 20px rgba(0,30,80,.15)}
.pic-row figure img{display:block;width:100%;height:240px;object-fit:cover;background:#eef4fb}
.pic-row figure figcaption{display:block;padding:14px 18px;font-size:14px;color:#1a3a5e;border-top:1px solid #e6eef7;font-weight:500;background:#fff}
@media(max-width:920px){.pic-row{grid-template-columns:1fr;gap:16px}.pic-row figure img{height:200px}}