/* ==========================================================
   深圳市品信电机有限公司 官网样式
   主色：深海军蓝（稳重、可靠） 辅色：铜橙（电机绕组铜线）
   ========================================================== */
:root{
  --navy:#0F2D4A;
  --navy-2:#173E63;
  --navy-3:#0A1F33;
  --copper:#C26A2B;
  --copper-2:#A9561C;
  --copper-soft:#F6EBE2;
  --steel:#5B6B7A;
  --line:#DDE3E9;
  --bg:#F3F5F8;
  --text:#1C2733;
  --muted:#5F6E7C;
  --white:#fff;
  --radius:6px;
  --shadow:0 2px 6px rgba(15,45,74,.06),0 8px 24px rgba(15,45,74,.06);
  --container:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--text);background:var(--white);font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--copper)}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--navy);font-weight:700}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
section[id],div[id],main[id]{scroll-margin-top:90px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 26px;border-radius:var(--radius);font-weight:600;font-size:15px;border:1.5px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--copper);color:#fff}
.btn-primary:hover{background:var(--copper-2);color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2);color:#fff}
.btn-outline{border-color:currentColor;color:var(--navy);background:transparent}
.btn-outline:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--navy)}
.btn svg{width:16px;height:16px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--navy-3);color:#AFC0D0;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px;gap:16px}
.topbar a:hover{color:#fff}
.topbar-right{display:flex;gap:22px}

/* ---------- 头部导航 ---------- */
.header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s}
.header.scrolled{box-shadow:0 4px 18px rgba(15,45,74,.08)}
.header .container{display:flex;align-items:center;height:78px;gap:28px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{width:46px;height:46px}
.brand img.brand-lockup{width:206px;height:auto;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-cn{font-size:22px;font-weight:800;color:var(--navy);letter-spacing:3px}
.brand-en{font-size:10.5px;font-weight:700;letter-spacing:3.4px;color:var(--copper);margin-top:4px;font-family:Arial,Helvetica,sans-serif}
.nav{display:flex;margin-left:auto;height:100%}
.nav a{position:relative;display:flex;align-items:center;padding:0 18px;font-size:16px;font-weight:500;color:var(--text);height:100%}
.nav a::after{content:"";position:absolute;left:18px;right:18px;bottom:0;height:3px;background:var(--copper);transform:scaleX(0);transition:transform .2s}
.nav a:hover{color:var(--navy)}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.nav a.active{color:var(--navy);font-weight:700}
.header-tel{display:flex;align-items:center;gap:10px;padding-left:24px;border-left:1px solid var(--line)}
.header-tel .ico{width:38px;height:38px;border-radius:50%;background:var(--copper-soft);color:var(--copper);display:grid;place-items:center}
.header-tel .ico svg{width:18px;height:18px}
.header-tel small{display:block;font-size:12px;color:var(--muted);line-height:1.2}
.header-tel strong{font-size:18px;color:var(--navy);font-family:Arial,Helvetica,sans-serif;letter-spacing:.5px;line-height:1.3}
.menu-btn{display:none;margin-left:auto;background:none;border:0;width:42px;height:42px;cursor:pointer;color:var(--navy)}
.menu-btn svg{width:26px;height:26px;margin:auto}

/* ---------- 首页 Banner ---------- */
.hero{position:relative;background:var(--navy);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(10,31,51,.97) 0%,rgba(15,45,74,.9) 45%,rgba(15,45,74,.55) 100%),
  repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 48px),
  repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 48px);}
.hero .container{position:relative;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:40px;min-height:540px;padding-top:56px;padding-bottom:56px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;color:#F2C29E;border:1px solid rgba(242,194,158,.4);padding:4px 14px;border-radius:20px;margin-bottom:22px}
.hero h1{color:#fff;font-size:46px;letter-spacing:2px;margin-bottom:18px}
.hero h1 em{font-style:normal;color:#F0A26A}
.hero p.lead{font-size:17px;color:#C7D4E0;max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-points{display:flex;gap:28px;margin-top:40px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14);flex-wrap:wrap}
.hero-points div{font-size:14px;color:#AFC0D0}
.hero-points b{display:block;font-size:26px;color:#fff;font-family:Arial,Helvetica,sans-serif}
.hero-visual{position:relative;display:grid;place-items:center}
.hero-visual .ring{width:min(420px,100%);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.08),rgba(255,255,255,0) 65%);border:1px solid rgba(255,255,255,.12);display:grid;place-items:center}
.hero-visual svg{width:78%}

/* ---------- 热门搜索条 ---------- */
.searchbar{background:#fff;border-bottom:1px solid var(--line)}
.searchbar .container{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.hot{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);flex-wrap:wrap}
.hot b{color:var(--navy);margin-right:6px}
.hot a{padding:2px 12px;border-radius:14px;background:var(--bg)}
.hot a:hover{background:var(--copper-soft)}
.search-form{display:flex;border:1.5px solid var(--navy);border-radius:var(--radius);overflow:hidden;width:340px;max-width:100%}
.search-form input{flex:1;border:0;padding:8px 14px;outline:0;min-width:0}
.search-form button{border:0;background:var(--navy);color:#fff;padding:0 18px;cursor:pointer}
.search-form button:hover{background:var(--navy-2)}

/* ---------- 通用版块 ---------- */
.section{padding:84px 0}
.section.alt{background:var(--bg)}
.section.dark{background:var(--navy);color:#C7D4E0}
.section.dark h2,.section.dark h3{color:#fff}
.sec-head{text-align:center;max-width:720px;margin:0 auto 48px}
.sec-head .en{display:block;font-family:Arial,Helvetica,sans-serif;font-size:13px;font-weight:700;letter-spacing:4px;color:var(--copper);text-transform:uppercase;margin-bottom:8px}
.sec-head h2{font-size:32px;letter-spacing:1px}
.sec-head p{color:var(--muted);margin:14px 0 0}
.section.dark .sec-head p{color:#AFC0D0}
.sec-head.left{text-align:left;margin-left:0}
.sec-head h2::after{content:"";display:block;width:44px;height:3px;background:var(--copper);margin:16px auto 0}
.sec-head.left h2::after{margin-left:0}

/* ---------- 优势三栏 ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pillar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;border-top:3px solid var(--navy);transition:.2s}
.pillar:hover{border-top-color:var(--copper);box-shadow:var(--shadow);transform:translateY(-3px)}
.pillar .ico{width:52px;height:52px;border-radius:var(--radius);background:var(--navy);color:#fff;display:grid;place-items:center;margin-bottom:18px}
.pillar .ico svg{width:26px;height:26px}
.pillar h3{font-size:20px;margin-bottom:10px}
.pillar p{color:var(--muted);margin:0}

/* ---------- 产品分类卡片 ---------- */
.cat-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cat-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s}
.cat-card:hover{box-shadow:var(--shadow);border-color:#C9D3DD;color:inherit}
.cat-card .pic{background:linear-gradient(160deg,#EEF2F6,#E2E8EF);aspect-ratio:16/10;display:grid;place-items:center;padding:24px}
.cat-card .pic svg{width:72%;max-height:100%}
.cat-card .body{padding:22px 26px 26px;flex:1;display:flex;flex-direction:column}
.cat-card .en{font-size:12px;letter-spacing:2px;color:var(--copper);font-weight:700;font-family:Arial,Helvetica,sans-serif;text-transform:uppercase}
.cat-card h3{font-size:22px;margin:4px 0 10px}
.cat-card p{color:var(--muted);flex:1}
.cat-card .more{font-weight:600;color:var(--navy);display:inline-flex;align-items:center;gap:6px}
.cat-card:hover .more{color:var(--copper)}

/* ---------- 应用行业 ---------- */
.industries{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.ind{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 12px 20px;text-align:center;transition:.2s}
.ind:hover{border-color:var(--copper);color:inherit;transform:translateY(-2px)}
.ind .ico{display:block;width:44px;height:44px;margin:0 auto 12px;color:var(--navy)}
.ind .ico svg{width:100%;height:100%}
.ind:hover .ico{color:var(--copper)}
.ind b{display:block;font-size:15px;color:var(--navy)}
.section.dark .ind{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.12)}
.section.dark .ind b{color:#fff}
.section.dark .ind .ico{color:#F0A26A}

/* ---------- 应用案例 ---------- */
.cases{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.case .pic{aspect-ratio:4/3;background:linear-gradient(150deg,var(--navy-2),var(--navy));display:grid;place-items:center;color:#F0A26A}
.case .pic svg{width:40%}
.case .body{padding:18px 20px 20px}
.case h3{font-size:18px;margin-bottom:4px}
.case p{color:var(--muted);font-size:14px;margin:0}

/* ---------- 解决方案 ---------- */
.solution{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.solution .pic{background:linear-gradient(160deg,#EEF2F6,#DCE3EA);border-radius:var(--radius);aspect-ratio:5/4;display:grid;place-items:center;padding:40px}
.solution h3{font-size:26px;margin-bottom:6px}
.solution .label{display:inline-block;background:var(--copper-soft);color:var(--copper-2);font-size:13px;font-weight:700;padding:3px 12px;border-radius:3px;margin-bottom:14px}
.solution dl{margin:22px 0 28px}
.solution dt{font-weight:700;color:var(--navy);margin-top:14px}
.solution dd{margin:4px 0 0;color:var(--muted)}
.solution dd a{color:var(--copper);font-weight:600;font-family:Arial,Helvetica,sans-serif}
.solution dd a:hover{text-decoration:underline}

/* ---------- 品牌优势（数字列表） ---------- */
.adv{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}
.adv-item{padding:34px 28px;border-right:1px solid var(--line)}
.adv-item:last-child{border-right:0}
.adv-item .num{font-family:Arial,Helvetica,sans-serif;font-size:36px;font-weight:800;color:#E6C8B1;line-height:1;margin-bottom:16px;transition:color .2s}
.adv-item:hover .num{color:var(--copper)}
.adv-item h3{font-size:18px;margin-bottom:8px}
.adv-item p{color:var(--muted);font-size:14px;margin:0}

/* ---------- 关于（首页） ---------- */
.about-home{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.about-home .txt p{color:var(--muted)}
.about-home .pic{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;background:var(--navy)}
.about-home .pic .badge{position:absolute;left:0;bottom:0;background:var(--copper);color:#fff;padding:18px 26px}
.about-home .pic .badge b{display:block;font-size:34px;font-family:Arial,Helvetica,sans-serif;line-height:1.1}
.about-links{display:flex;gap:12px;margin:24px 0 30px;flex-wrap:wrap}
.about-links a{padding:10px 18px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;font-weight:600;color:var(--navy);display:flex;flex-direction:column;line-height:1.3}
.about-links a small{font-weight:400;font-size:11px;letter-spacing:1px;color:var(--muted);text-transform:uppercase;font-family:Arial,Helvetica,sans-serif}
.about-links a:hover{border-color:var(--copper)}

/* ---------- 数据统计 ---------- */
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:0;background:var(--navy);border-radius:var(--radius);overflow:hidden}
.stat{padding:30px 20px;text-align:center;border-right:1px solid rgba(255,255,255,.1);color:#AFC0D0;font-size:14px}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:Arial,Helvetica,sans-serif;font-size:40px;font-weight:800;color:#fff;line-height:1.15}
.stat b sup{font-size:16px;color:#F0A26A;margin-left:2px;vertical-align:super}
.stat b small{font-size:16px;color:#F0A26A;margin-left:2px}

/* ---------- 生产/定制流程 ---------- */
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:0;counter-reset:step;position:relative}
.step{position:relative;padding:0 14px;text-align:center}
.step::before{content:"";position:absolute;top:31px;left:50%;right:-50%;height:2px;background:rgba(255,255,255,.18)}
.step:last-child::before{display:none}
.step .dot{position:relative;width:64px;height:64px;margin:0 auto 18px;border-radius:50%;background:var(--navy-2);border:2px solid #F0A26A;display:grid;place-items:center;color:#fff;font-family:Arial,Helvetica,sans-serif;font-size:20px;font-weight:800}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14px;color:#AFC0D0;margin:0}

/* ---------- 新闻 ---------- */
.news-home{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.news-home > *,.news-layout > *,.prod-layout > *{min-width:0}
.news-feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:flex;flex-direction:column}
.news-feature .date{color:var(--copper);font-weight:700;font-family:Arial,Helvetica,sans-serif}
.news-feature h3{font-size:22px;margin:8px 0 12px}
.news-feature p{color:var(--muted);flex:1}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:8px}
.tabs button{background:none;border:0;padding:10px 18px;cursor:pointer;font-weight:600;color:var(--muted);border-bottom:3px solid transparent;margin-bottom:-1px}
.tabs button.active{color:var(--navy);border-bottom-color:var(--copper)}
.news-list li{border-bottom:1px dashed var(--line)}
.news-list a{display:flex;justify-content:space-between;gap:16px;padding:13px 2px}
.news-list a span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-list time{color:var(--muted);font-size:14px;flex-shrink:0;font-family:Arial,Helvetica,sans-serif}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(90deg,var(--copper-2),var(--copper));color:#fff}
.cta .container{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:40px;padding-bottom:40px;flex-wrap:wrap}
.cta h2{color:#fff;font-size:26px}
.cta p{margin:6px 0 0;color:#FBE6D6}
.cta .btn-ghost:hover{color:var(--copper-2)}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy-3);color:#8FA3B6;font-size:14px}
.footer .container{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:36px;padding-top:56px;padding-bottom:40px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer li{margin-bottom:8px}
.footer a:hover{color:#fff}
.footer .brand-cn{color:#fff}
.footer .contact-lines p{margin:0 0 6px}
.footer .qr{width:104px;height:104px;background:#fff;border-radius:4px;padding:6px}
.wechat-qr-trigger{display:block;padding:0;border:0;background:transparent;cursor:zoom-in}
/* 显示原图中 (140,420) 到 (820,1100) 的二维码区域，保留周围留白。 */
.wechat-qr-frame{display:block;position:relative;width:160px;aspect-ratio:1;overflow:hidden;background:#fff;border-radius:4px}
.wechat-qr-frame img{position:absolute;width:141.176471%;max-width:none;height:auto;left:-20.588235%;top:-61.764706%}
.wechat-dialog{border:0;border-radius:8px;padding:36px 16px 16px;max-width:calc(100vw - 32px)}
.wechat-dialog::backdrop{background:rgba(10,31,51,.65)}
.wechat-dialog .wechat-qr-frame{width:min(420px,calc(100vw - 64px))}
.wechat-dialog-close{position:absolute;right:8px;top:2px;background:none;border:0;font-size:26px;cursor:pointer}
.footer .qr-cap{font-size:12px;margin-top:6px}
.copyright{border-top:1px solid rgba(255,255,255,.08);font-size:13px}
.copyright .container{display:flex;justify-content:space-between;gap:16px;padding-top:18px;padding-bottom:18px;grid-template-columns:none;flex-wrap:wrap}

/* ---------- 右侧悬浮工具栏 ---------- */
.float-bar{position:fixed;right:16px;bottom:96px;z-index:60;display:flex;flex-direction:column;gap:1px;box-shadow:0 0 0 1px rgba(255,255,255,.18),var(--shadow);border-radius:var(--radius);overflow:visible}
.float-bar > a,.float-bar > button{position:relative;width:58px;height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;background:var(--navy);color:#fff;border:0;cursor:pointer;font-size:11px}
.float-bar > *:first-child{border-radius:var(--radius) var(--radius) 0 0}
.float-bar > *:last-child{border-radius:0 0 var(--radius) var(--radius)}
.float-bar > a:hover,.float-bar > button:hover{background:var(--copper);color:#fff}
.float-bar svg{width:20px;height:20px}
.float-pop{position:absolute;right:68px;top:50%;transform:translateY(-50%);background:#fff;color:var(--text);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px;white-space:nowrap;font-size:14px;display:none;text-align:center;border:1px solid var(--line)}
.float-pop strong{font-size:17px;color:var(--navy);font-family:Arial,Helvetica,sans-serif}
.float-bar > *:hover .float-pop,.float-bar > *:focus-within .float-pop{display:block}
.float-pop .qr{width:120px;height:120px;margin:0 auto 6px}
.float-pop .wechat-qr-frame{width:200px}
body.menu-open .float-bar{display:none}
.float-bar > #toTop{display:none}
.float-bar > #toTop.show{display:flex}

/* ---------- 内页 Banner ---------- */
.page-hero{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(10,31,51,.96),rgba(15,45,74,.75)),
  repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 40px),
  repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 40px)}
.page-hero .container{position:relative;padding-top:58px;padding-bottom:58px}
.page-hero .en{font-family:Arial,Helvetica,sans-serif;font-size:13px;letter-spacing:4px;color:#F0A26A;font-weight:700;text-transform:uppercase}
.page-hero h1{color:#fff;font-size:36px;margin-top:6px}
.page-hero p{color:#AFC0D0;margin:10px 0 0;max-width:680px}
.crumbs{background:#fff;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted)}
.crumbs .container{display:flex;align-items:center;gap:8px;height:50px;flex-wrap:wrap}
.crumbs a:hover{color:var(--copper)}
.crumbs .sep{color:#B7C2CC}
.crumbs #crumbCat{display:contents}

/* ---------- 产品中心 ---------- */
.prod-layout{display:grid;grid-template-columns:260px 1fr;gap:32px;align-items:start}
.sidebar{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
.side-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.side-box h3{background:var(--navy);color:#fff;font-size:16px;padding:13px 18px}
.side-box ul{padding:8px}
.side-box li button,.side-box li a{width:100%;text-align:left;display:flex;justify-content:space-between;align-items:center;padding:9px 12px;border:0;background:none;border-radius:4px;cursor:pointer;color:var(--text)}
.side-box li button:hover{background:var(--bg)}
.side-box li button.active{background:var(--copper-soft);color:var(--copper-2);font-weight:700}
.side-box li em{font-style:normal;font-size:12px;color:var(--muted);background:var(--bg);border-radius:10px;padding:0 8px}
.side-box li button.active em{background:#fff}
.side-tags{display:flex;flex-wrap:wrap;gap:8px;padding:14px}
.side-tags button{border:1px solid var(--line);background:#fff;border-radius:16px;padding:3px 12px;font-size:13px;cursor:pointer}
.side-tags button:hover{border-color:var(--copper);color:var(--copper)}
.side-tags button.active{background:var(--navy);border-color:var(--navy);color:#fff}
.side-contact{padding:18px;font-size:14px;color:var(--muted)}
.side-contact strong{display:block;font-size:20px;color:var(--copper);font-family:Arial,Helvetica,sans-serif}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.toolbar .count{color:var(--muted)}
.toolbar .count b{color:var(--navy)}
.view-toggle{display:flex;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.view-toggle button{background:#fff;border:0;padding:6px 12px;cursor:pointer;color:var(--muted);display:flex;align-items:center;gap:6px;font-size:14px}
.view-toggle button.active{background:var(--navy);color:#fff}
.view-toggle svg{width:16px;height:16px}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.related-grid{grid-template-columns:repeat(var(--related-count,4),minmax(0,1fr))}
.prod-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s}
.prod-card:hover{box-shadow:var(--shadow);border-color:#C9D3DD;color:inherit}
.prod-card .pic{position:relative;aspect-ratio:4/3;background:linear-gradient(160deg,#F1F4F7,#E3E9EF);display:grid;place-items:center;padding:18px}
.prod-card .pic svg,.prod-card .pic img{width:78%;max-height:100%;object-fit:contain}
.prod-card .tag{position:absolute;left:12px;top:12px;background:var(--navy);color:#fff;font-size:12px;padding:1px 10px;border-radius:3px}
.prod-card .body{padding:16px 18px 18px}
.prod-card h3{font-size:17px;margin-bottom:8px}
.prod-card .specs{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;font-size:13px;color:var(--muted)}
.prod-card .specs dt{color:#8A97A4}
.prod-card .specs dd{margin:0;color:var(--text);font-family:Arial,Helvetica,sans-serif}
.prod-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);font-size:14px}
.prod-table th{background:var(--navy);color:#fff;text-align:left;font-weight:600;padding:11px 14px;white-space:nowrap}
.prod-table td{padding:11px 14px;border-top:1px solid var(--line);vertical-align:top}
.prod-table tr:hover td{background:#F8FAFB}
.prod-table td.model a{font-weight:700;color:var(--navy)}
.prod-table td.model a:hover{color:var(--copper)}
.table-wrap{overflow-x:auto}
.empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:60px 20px;text-align:center;color:var(--muted)}
.pager{display:flex;justify-content:center;gap:6px;margin-top:34px;flex-wrap:wrap}
.pager button{min-width:40px;height:40px;padding:0 12px;border:1px solid var(--line);background:#fff;border-radius:var(--radius);cursor:pointer}
.pager button:hover:not(:disabled){border-color:var(--navy)}
.pager button.active{background:var(--navy);border-color:var(--navy);color:#fff}
.pager button:disabled{opacity:.45;cursor:not-allowed}

/* ---------- 产品详情 ---------- */
.pd-top{display:grid;grid-template-columns:1fr 1fr;gap:48px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px}
.pd-gallery .main{aspect-ratio:1;background:linear-gradient(160deg,#F1F4F7,#E3E9EF);border-radius:var(--radius);display:grid;place-items:center;padding:40px}
.pd-gallery .main svg,.pd-gallery .main img{width:80%}
.pd-info .cat{color:var(--copper);font-weight:700;font-size:14px}
.pd-info h1{font-size:30px;margin:6px 0 18px}
.spec-table{width:100%;border-collapse:collapse;margin-bottom:26px}
.spec-table th,.spec-table td{border-bottom:1px solid var(--line);padding:12px 4px;text-align:left;font-size:15px}
.spec-table th{color:var(--muted);font-weight:500;width:120px}
.spec-table td{color:var(--text);font-weight:600}
.pd-actions{display:flex;gap:12px;flex-wrap:wrap}
.pd-hotline{margin-top:22px;padding:16px 18px;background:var(--bg);border-radius:var(--radius);display:flex;align-items:center;gap:14px;font-size:14px;color:var(--muted)}
.pd-hotline strong{font-size:22px;color:var(--navy);font-family:Arial,Helvetica,sans-serif;display:block;line-height:1.2}
.pd-nav{display:flex;justify-content:space-between;gap:16px;margin-top:20px;font-size:14px;flex-wrap:wrap}
.pd-nav a{color:var(--muted)}
.pd-nav a:hover{color:var(--copper)}
.pd-section{margin-top:36px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.pd-section > h2{font-size:18px;padding:16px 24px;border-bottom:1px solid var(--line);position:relative}
.pd-section > h2::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;background:var(--copper)}
.pd-section .inner{padding:24px}
.spec-summary-note,.spec-help{font-size:14px;color:var(--muted)}
.spec-summary-note{margin:-10px 0 20px}
.detailed-specs{font-size:13px}
.detailed-specs caption{text-align:left;color:var(--muted);padding:0 0 12px}
.detailed-specs thead th{text-align:center;padding:10px 12px}
.detailed-specs thead tr+tr th{border-top:1px solid rgba(255,255,255,.25)}
.detailed-specs th small{display:block;font-size:12px;font-weight:400;opacity:.85;white-space:nowrap}
.detailed-specs tbody th{background:var(--bg);color:var(--navy);font-weight:600;white-space:nowrap;border-top:1px solid var(--line)}
.detailed-specs td{white-space:nowrap;text-align:center;font-variant-numeric:tabular-nums}
.spec-scroll:focus-visible{outline:2px solid var(--copper);outline-offset:3px}
.gearbox-title{font-size:17px;margin:28px 0 14px}
.spec-notes{background:var(--copper-soft);border-left:3px solid var(--copper);padding:16px 20px;margin-top:24px}
.spec-notes h3{font-size:16px;margin-bottom:8px}
.spec-notes ul{list-style:disc;padding-left:20px;font-size:14px;color:var(--muted)}
.spec-notes li+li{margin-top:6px}
.parameter-kind{display:block;font-size:12px;color:var(--muted);margin-bottom:2px}
.datasheet-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.datasheet-toolbar p{flex:1;min-width:200px;color:var(--muted);font-size:14px;margin:0}
.datasheet-actions{display:flex;gap:10px;flex-wrap:wrap}
.datasheet-preview{display:block;max-width:1064px;margin:0 auto;cursor:zoom-in}
.datasheet-preview:focus-visible{outline:3px solid var(--copper);outline-offset:4px}
.datasheet-preview img{width:100%;height:auto;border:1px solid var(--line);background:#fff}
.pd-section ul.check li{position:relative;padding-left:26px;margin-bottom:10px;color:var(--muted)}
.pd-section ul.check li::before{content:"";position:absolute;left:4px;top:8px;width:12px;height:7px;border-left:2px solid var(--copper);border-bottom:2px solid var(--copper);transform:rotate(-45deg)}

/* ---------- 应用行业页 ---------- */
.ind-detail{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.ind-card{display:grid;grid-template-columns:160px 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.ind-card .pic{background:linear-gradient(150deg,var(--navy-2),var(--navy));color:#F0A26A;display:grid;place-items:center}
.ind-card .pic svg{width:56px;height:56px}
.ind-card .body{padding:22px 24px}
.ind-card h3{font-size:19px;margin-bottom:6px}
.ind-card p{color:var(--muted);font-size:14px;margin-bottom:10px}
.ind-card .rec{font-size:13px;color:var(--muted)}
.ind-card .rec a{display:inline-block;margin:4px 6px 0 0;padding:1px 10px;background:var(--bg);border-radius:3px;color:var(--navy);font-family:Arial,Helvetica,sans-serif}
.ind-card .rec a:hover{background:var(--copper-soft);color:var(--copper-2)}

/* ---------- 关于我们 ---------- */
.about-intro{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.about-intro .txt p{color:var(--muted);text-indent:2em}
.about-facts{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fact{background:var(--bg);border-radius:var(--radius);padding:22px;border-left:3px solid var(--copper)}
.fact b{display:block;font-size:30px;color:var(--navy);font-family:Arial,Helvetica,sans-serif;line-height:1.2}
.fact span{color:var(--muted);font-size:14px}
.culture{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.culture .item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;text-align:center}
.culture .item .ico{width:56px;height:56px;margin:0 auto 14px;border-radius:50%;background:var(--copper-soft);color:var(--copper);display:grid;place-items:center}
.culture .item .ico svg{width:26px;height:26px}
.culture .item h3{font-size:18px;margin-bottom:8px}
.culture .item p{color:var(--muted);font-size:14px;margin:0}
.timeline{position:relative;max-width:880px;margin:0 auto}
.timeline::before{content:"";position:absolute;left:137px;top:6px;bottom:6px;width:2px;background:rgba(255,255,255,.18)}
.tl{display:grid;grid-template-columns:120px 1fr;gap:36px;padding-bottom:30px;position:relative}
.tl:last-child{padding-bottom:0}
.tl .yr{font-family:Arial,Helvetica,sans-serif;font-weight:800;font-size:24px;color:#F0A26A;text-align:right;padding-right:6px;line-height:1.2}
.tl .txt{position:relative}
.tl .txt::before{content:"";position:absolute;left:-27px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--navy);border:3px solid #F0A26A}
.tl h3{font-size:18px;margin-bottom:4px}
.tl p{margin:0;color:#AFC0D0}
.env-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.env{border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line)}
.env .pic{aspect-ratio:4/3;background:repeating-linear-gradient(135deg,#E9EEF3 0 14px,#E2E8EE 14px 28px);display:grid;place-items:center;color:var(--steel);font-size:13px;text-align:center;padding:12px}
.env .pic img{width:100%;height:100%;object-fit:cover}
.env h3{font-size:16px;padding:14px 18px}
.certs{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cert{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;text-align:center}
.cert .ico{width:44px;height:44px;margin:0 auto 12px;color:var(--copper)}
.cert h3{font-size:16px;margin-bottom:4px}
.cert p{font-size:13px;color:var(--muted);margin:0}

/* ---------- 新闻 ---------- */
.news-layout{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:start}
.news-items li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:16px;transition:.2s}
.news-items li:hover{box-shadow:var(--shadow)}
.news-items a{display:grid;grid-template-columns:96px 1fr;gap:24px;padding:22px 26px;color:inherit}
.news-items .d{text-align:center;border-right:1px solid var(--line);padding-right:20px;font-family:Arial,Helvetica,sans-serif}
.news-items .d b{display:block;font-size:30px;color:var(--navy);line-height:1.1}
.news-items .d span{font-size:13px;color:var(--muted)}
.news-items h3{font-size:18px;margin-bottom:6px}
.news-items a:hover h3{color:var(--copper)}
.news-items p{color:var(--muted);font-size:14px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-items .badge{display:inline-block;font-size:12px;padding:0 8px;border-radius:3px;background:var(--copper-soft);color:var(--copper-2);margin-right:8px;vertical-align:2px;font-weight:600}
.side-news li{border-bottom:1px dashed var(--line)}
.side-news li:last-child{border-bottom:0}
.side-news a{display:block;padding:10px 12px;font-size:14px}
.article{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px 48px}
.article h1{font-size:28px;margin-bottom:14px}
.article .meta{display:flex;gap:20px;color:var(--muted);font-size:14px;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:26px;flex-wrap:wrap}
.article .content p{color:#334252;font-size:16px;line-height:1.95}
.article .content h3{font-size:18px;margin:26px 0 10px;padding-left:12px;border-left:3px solid var(--copper)}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px;padding-top:20px;border-top:1px solid var(--line);font-size:14px}
.article-nav a{color:var(--muted)}
.article-nav a:hover{color:var(--copper)}
.article-nav .next{text-align:right}

/* ---------- 联系我们 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:32px;align-items:start}
.contact-card{background:var(--navy);color:#C7D4E0;border-radius:var(--radius);padding:36px}
.contact-card h2{color:#fff;font-size:22px;margin-bottom:24px}
.c-row{display:grid;grid-template-columns:44px 1fr;gap:14px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.c-row:last-of-type{border-bottom:0}
.c-row .ico{width:44px;height:44px;border-radius:var(--radius);background:rgba(255,255,255,.08);display:grid;place-items:center;color:#F0A26A}
.c-row .ico svg{width:20px;height:20px}
.c-row small{display:block;color:#8FA3B6;font-size:13px}
.c-row b{color:#fff;font-weight:600}
.c-row a:hover{color:#F0A26A}
.contact-card .btn{margin-top:20px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px}
.form-card h2{font-size:22px;margin-bottom:6px}
.form-card > p{color:var(--muted);margin-bottom:24px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--navy)}
.field label i{color:var(--copper);font-style:normal;margin-left:2px}
.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:var(--radius);padding:10px 12px;background:#FBFCFD;outline:0;transition:.15s;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--navy);background:#fff;box-shadow:0 0 0 3px rgba(15,45,74,.08)}
.field textarea{min-height:120px;resize:vertical}
.field .err{font-size:12px;color:#C0392B;display:none}
.field.invalid input,.field.invalid textarea{border-color:#C0392B}
.field.invalid .err{display:block}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:22px;flex-wrap:wrap}
.form-foot small{color:var(--muted)}
.form-ok{display:none;background:#EAF5EE;border:1px solid #BFE0CB;color:#1E6B3A;border-radius:var(--radius);padding:14px 16px;margin-top:16px;font-size:14px}
.map-box{margin-top:32px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);display:grid;grid-template-columns:1fr auto;align-items:center;gap:20px;padding:24px 28px}
.map-box h3{font-size:18px;margin-bottom:4px}
.map-box p{color:var(--muted);margin:0}
.map-links{display:flex;gap:10px;flex-wrap:wrap}

/* ---------- 动画 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .header-tel{display:none}
  .nav a{padding:0 13px}
  .industries{grid-template-columns:repeat(4,1fr)}
  .footer .container{grid-template-columns:1fr 1fr 1fr}
  .footer .container > div:first-child{grid-column:1/-1}
}
@media (max-width:960px){
  .menu-btn{display:block}
  .nav{position:absolute;top:100%;left:0;right:0;height:calc(100vh - 64px);flex-direction:column;background:#fff;padding:12px 20px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:.2s;overflow:auto;border-top:1px solid var(--line)}
  .nav.open{opacity:1;visibility:visible;transform:none}
  .nav a{height:auto;padding:16px 4px;border-bottom:1px solid var(--line);font-size:17px}
  .nav a::after{display:none}
  .nav a.active{color:var(--copper)}
  .hero .container{grid-template-columns:1fr;min-height:0}
  .hero-visual{display:none}
  .hero h1{font-size:36px}
  .pillars,.cat-cards{grid-template-columns:1fr 1fr}
  .cases{grid-template-columns:1fr 1fr}
  .solution,.about-home,.about-intro,.news-home,.contact-grid,.pd-top{grid-template-columns:1fr}
  .adv{grid-template-columns:1fr 1fr}
  .adv-item:nth-child(2){border-right:0}
  .adv-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .stats{grid-template-columns:repeat(3,1fr)}
  .stat:nth-child(3){border-right:0}
  .stat:nth-child(-n+3){border-bottom:1px solid rgba(255,255,255,.1)}
  .process{grid-template-columns:1fr;gap:24px;text-align:left}
  .step{display:grid;grid-template-columns:64px 1fr;gap:4px 18px;text-align:left;padding:0}
  .step .dot{margin:0;grid-row:span 2}
  .step::before{left:31px;right:auto;top:64px;bottom:-24px;width:2px;height:auto}
  .prod-layout,.news-layout{grid-template-columns:1fr}
  .sidebar{position:static;gap:12px}
  .prod-layout .side-box ul{display:flex;flex-wrap:wrap;gap:8px;padding:12px}
  .prod-layout .side-box li button{width:auto;gap:8px;border:1px solid var(--line);border-radius:16px;padding:3px 12px;font-size:14px}
  .prod-layout .side-box h3{padding:9px 14px;font-size:14px}
  .prod-layout .side-tags{padding:12px}
  .prod-layout .side-contact{display:none}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .ind-detail{grid-template-columns:1fr}
  .culture,.certs{grid-template-columns:1fr 1fr}
  .env-grid{grid-template-columns:1fr 1fr}
  .searchbar .container{height:auto;padding-top:12px;padding-bottom:12px;flex-direction:column;align-items:stretch}
  .search-form{width:100%}
}
@media (max-width:640px){
  .container{padding:0 16px}
  body{font-size:14.5px}
  .topbar-left{display:none}
  .topbar .container{justify-content:center}
  .header .container{height:64px}
  .brand img{width:40px;height:40px}
  .brand img.brand-lockup{width:185px;height:auto}
  .brand-cn{font-size:19px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .sec-head h2{font-size:25px}
  .hero h1{font-size:29px}
  .hero p.lead{font-size:15.5px}
  .hero-points{gap:18px}
  .pillars,.cat-cards,.cases,.culture,.certs,.env-grid{grid-template-columns:1fr}
  .industries{grid-template-columns:repeat(3,1fr);gap:10px}
  .ind{padding:16px 6px 14px}
  .ind .ico{width:36px;height:36px}
  .ind b{font-size:13.5px}
  .adv{grid-template-columns:1fr}
  .adv-item{border-right:0;border-bottom:1px solid var(--line)}
  .stats{grid-template-columns:1fr 1fr}
  .stat{border-right:0!important;border-bottom:1px solid rgba(255,255,255,.1)}
  .stat:last-child{grid-column:1/-1}
  .stat b{font-size:32px}
  .prod-grid{grid-template-columns:1fr 1fr;gap:12px}
  .prod-card .body{padding:12px}
  .prod-card h3{font-size:15px}
  .prod-card .specs{grid-template-columns:1fr;font-size:12px}
  .prod-card .specs dt{display:none}
  .pd-top{padding:18px;gap:24px}
  .ind-card{grid-template-columns:1fr}
  .ind-card .pic{padding:22px}
  .news-items a{grid-template-columns:1fr;gap:6px;padding:18px}
  .news-items .d{border:0;padding:0;text-align:left;display:flex;gap:8px;align-items:baseline}
  .news-items .d b{font-size:15px;display:inline;color:var(--copper)}
  .article{padding:24px 18px}
  .article h1{font-size:22px}
  .article-nav{grid-template-columns:1fr}
  .article-nav .next{text-align:left}
  .form-card,.contact-card{padding:24px 18px}
  .form-grid{grid-template-columns:1fr}
  .map-box{grid-template-columns:1fr}
  .footer .container{grid-template-columns:1fr 1fr;gap:28px}
  .footer .container > div:last-child{grid-column:1/-1}
  .float-bar{right:10px;bottom:76px}
  .float-bar > a,.float-bar > button{width:48px;height:48px;font-size:0}
  .timeline::before{left:83px}
  .tl{grid-template-columns:70px 1fr;gap:28px}
  .tl .yr{font-size:18px}
  .tl .txt::before{left:-23px}
}