@charset "utf-8";
/* ==========================================================================
   EVOPTICS 亿纬光学 · 2026 改版样式
   ========================================================================== */
:root{
  --red:#E23614; --red-d:#C22A0C;
  --navy:#2A3644; --navy-2:#3B4C61; --navy-3:#1C2531;
  --ink:#16202B; --gray:#66707B; --line:#E6E9EE; --bg:#F6F8FA;
  --w:1200px; --r:10px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{max-width:100%;overflow-x:clip}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased;line-height:1.65;font-size:15px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;border:0}
ul,ol{list-style:none}
.wrap{width:min(var(--w),calc(100% - 48px));margin:0 auto}

/* ---------- top bar ---------- */
.topbar{background:var(--navy);color:#9FB0C0;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.topbar b{color:#fff;font-weight:600;letter-spacing:.3px}
.topbar a{color:inherit}
@media(min-width:421px){.topbar .tb-phone{display:none}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;height:74px;gap:28px}
.site-header .logo img{height:42px;width:auto}
.nav{display:flex;gap:2px;margin-left:auto}
.nav-item{position:relative}
.nav-item>a{display:block;padding:9px 13px;border-radius:6px;font-size:15px;color:#2B3742;transition:.2s;white-space:nowrap}
.nav-item>a:hover,.nav-item.on>a{background:var(--bg);color:var(--red)}
.nav-drop{position:absolute;top:100%;left:0;min-width:190px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 18px 40px rgba(16,32,48,.12);padding:8px;display:none;z-index:20}
.nav-item:hover .nav-drop{display:block}
.nav-drop a{display:block;padding:9px 14px;border-radius:6px;font-size:14px;color:#3A4753;white-space:nowrap}
.nav-drop a:hover{background:var(--bg);color:var(--red)}
.nav-mega{position:absolute;top:100%;left:50%;transform:translateX(-50%);width:min(1000px,92vw);background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 24px 60px rgba(16,32,48,.14);padding:22px;display:none;z-index:20}
.nav-item:hover .nav-mega{display:grid}
.nav-mega{grid-template-columns:repeat(4,1fr);gap:10px}
.nav-mega a{display:block;padding:12px 14px;border-radius:8px;font-size:14px;border:1px solid transparent}
.nav-mega a:hover{background:var(--bg);border-color:#F3B3A5;color:var(--red)}
.site-header .tel{display:flex;align-items:center;gap:10px;padding-left:22px;border-left:1px solid var(--line)}
.site-header .tel small{display:block;font-size:12px;color:var(--gray);line-height:1.2}
.site-header .tel strong{font-size:19px;color:var(--red);letter-spacing:.5px;white-space:nowrap}
.tel .btn{white-space:nowrap;flex:none}
.tel strong a{color:inherit}
.menu-toggle{display:none;margin-left:auto;background:0;border:0;font-size:24px;color:var(--ink);cursor:pointer;padding:6px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:6px;font-size:15px;font-weight:600;transition:.2s;cursor:pointer;border:0;font-family:inherit}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-d)}
.btn-ghost{border:1px solid rgba(255,255,255,.35);color:#fff;background:0}
.btn-ghost:hover{background:rgba(255,255,255,.1)}


/* ---------- hero (static) ---------- */
.hero{position:relative;background:linear-gradient(110deg,#1C2531 0%,#2A3644 55%,#3B4C61 100%);color:#fff;overflow:hidden;padding:0}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;pointer-events:none}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:72px 0 88px}
.hero .tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#FFB4A2;border:1px solid rgba(226,54,20,.45);background:rgba(226,54,20,.12);padding:6px 14px;border-radius:99px;margin-bottom:22px}
.hero .tag i{width:6px;height:6px;border-radius:50%;background:var(--red);display:block}
.hero h1{font-size:clamp(32px,4.2vw,54px);line-height:1.18;letter-spacing:-.5px;font-weight:800}
.hero h1 em{font-style:normal;color:var(--red)}
.hero p{color:#AFC0D0;font-size:16px;margin-top:20px;max-width:520px}
.hero .btns{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-img{position:relative}
.hero-img img{width:100%;height:400px;object-fit:cover;border-radius:14px;box-shadow:0 30px 70px rgba(0,0,0,.45)}
.hero-img .badge{position:absolute;left:-18px;bottom:26px;background:#fff;color:var(--ink);border-radius:12px;padding:14px 18px;box-shadow:0 16px 36px rgba(0,0,0,.22)}
.hero-img .badge b{display:block;font-size:24px;color:var(--red);line-height:1.1}
.hero-img .badge span{font-size:12px;color:var(--gray)}
@media(max-width:900px){
  .hero .wrap{grid-template-columns:1fr;padding:48px 0 56px}
  .hero-img img{height:280px}
  .hero-img .badge{left:12px;bottom:12px}
}
@media(max-width:640px){
  .hero h1{font-size:29px}
  .hero p{font-size:14.5px}
  .hero-img img{height:210px}
}

/* ---------- banner carousel ---------- */
.banner{position:relative;background:#1C2531;overflow:hidden;padding:0}
.bn-view{overflow:hidden;aspect-ratio:1920/600}
.bn-track{display:flex;height:100%;transition:transform .55s cubic-bezier(.4,0,.2,1)}
.bn-track .slide{flex:0 0 100%;height:100%;display:block}
.bn-track .slide img{width:100%;height:100%;object-fit:cover}
.bn-arrow{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;border:0;background:rgba(16,26,38,.42);color:#fff;font-size:16px;cursor:pointer;opacity:0;transition:.25s;display:flex;align-items:center;justify-content:center;z-index:3}
.banner:hover .bn-arrow{opacity:1}
.bn-arrow:hover{background:var(--red)}
.bn-arrow.prev{left:22px}.bn-arrow.next{right:22px}
.bn-dots{position:absolute;left:0;right:0;bottom:18px;display:flex;justify-content:center;gap:9px;z-index:3}
.bn-dot{width:9px;height:9px;border-radius:99px;border:0;background:rgba(255,255,255,.55);cursor:pointer;transition:.25s;padding:0}
.bn-dot.active{width:26px;background:var(--red)}

/* ---------- page banner (inner pages) ---------- */
.page-banner{position:relative;background:var(--navy);overflow:hidden;padding:0}
.page-banner img{width:100%;height:320px;object-fit:cover;opacity:.9}
.page-banner .pb-text{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;background:linear-gradient(90deg,rgba(8,14,22,.78),rgba(8,14,22,.25))}
.page-banner .pb-text h1{font-size:clamp(24px,3vw,38px);color:#fff;font-weight:800;letter-spacing:.5px}
.page-banner .pb-text p{margin-top:10px;color:#AFC0D0;font-size:14px;letter-spacing:2px;text-transform:uppercase}

/* ---------- breadcrumb ---------- */
.crumb{background:var(--bg);border-bottom:1px solid var(--line);font-size:13.5px;color:var(--gray)}
.crumb .wrap{display:flex;align-items:center;gap:8px;height:48px;flex-wrap:wrap}
.crumb a:hover{color:var(--red)}

/* ---------- trust ---------- */
.trust{background:#fff;border-bottom:1px solid var(--line)}
.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.trust div{padding:26px 18px;text-align:center;border-right:1px solid var(--line)}
.trust div:last-child{border-right:0}
.trust b{display:block;font-size:19px;font-weight:700}
.trust span{font-size:13px;color:var(--gray)}

/* ---------- sections ---------- */
section{padding:84px 0}
.sec-head{text-align:center;margin-bottom:48px}
.sec-head .en{font-size:13px;letter-spacing:3px;color:var(--red);font-weight:700;text-transform:uppercase}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);margin-top:10px;font-weight:800;letter-spacing:-.3px}
.sec-head p{color:var(--gray);margin-top:12px;font-size:15px}

/* ---------- products ---------- */
.products{background:var(--bg)}
.grid-p{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;transition:.25s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(16,32,48,.10);border-color:#F3B3A5}
.pcard .ph{aspect-ratio:4/3;height:auto;display:flex;align-items:center;justify-content:center;margin-bottom:14px;padding:8px}
.pcard .ph img{width:100%;height:100%;object-fit:contain}
.pcard h3{font-size:16px;font-weight:700}
.pcard p{font-size:13px;color:var(--gray);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:38px}
.pcard .more{margin-top:auto;padding-top:14px;font-size:13px;color:var(--red);font-weight:600}

/* ---------- why (dark) ---------- */
.why{background:var(--navy);color:#fff}
.why .sec-head h2{color:#fff}
.why .sec-head p{color:#8FA3B6}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.wcard{border:1px solid rgba(255,255,255,.10);border-radius:var(--r);padding:28px 24px;background:rgba(255,255,255,.03);transition:.25s}
.wcard:hover{background:rgba(226,54,20,.08);border-color:rgba(226,54,20,.5)}
.wcard b{display:block;font-size:30px;color:var(--red);font-weight:800;line-height:1}
.wcard h3{font-size:17px;margin:14px 0 8px}
.wcard p{font-size:13px;color:#93A6B8}

/* ---------- industries ---------- */
.inds{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.ind{border:1px solid var(--line);border-radius:var(--r);padding:26px 12px 22px;text-align:center;transition:.25s;background:#fff}
.ind .ico{width:42px;height:42px;margin:0 auto 14px;color:var(--red);transition:.25s}
.ind:hover .ico{transform:translateY(-3px)}
.ind .ico svg{width:100%;height:100%;display:block}
.ind:hover{border-color:var(--red);box-shadow:0 12px 28px rgba(16,32,48,.08)}
.ind b{display:block;font-size:15px}
.ind span{font-size:12px;color:var(--gray)}

/* ---------- about ---------- */
.about{background:var(--bg)}
.about .wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-img{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.about-img img{width:100%;height:180px;object-fit:cover;border-radius:10px}
.about-img img:first-child{grid-column:1/-1;height:220px}
.about h2{font-size:clamp(23px,2.4vw,32px);font-weight:800;margin-bottom:18px}
.about p{color:#4C5A67;font-size:15px;margin-bottom:24px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.stats div{border-left:3px solid var(--red);padding-left:14px}
.stats b{display:block;font-size:26px;font-weight:800;color:var(--red);line-height:1.1}
.stats span{font-size:12px;color:var(--gray)}

/* ---------- clients ---------- */
.clients{background:#fff}
.logo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.lg{height:112px;border:1px solid var(--line);border-radius:var(--r);display:flex;align-items:center;justify-content:center;background:#fff;transition:.25s}
.lg{position:relative}
.lg img{max-width:66%;max-height:56px;width:auto;object-fit:contain;transition:.25s}
.lg .lg-color{display:none}
.lg:hover{border-color:#F3B3A5;box-shadow:0 14px 34px rgba(16,32,48,.09)}
.lg:hover .lg-gray{display:none}
.lg:hover .lg-color{display:block}

/* ---------- news ---------- */
.news-sec{background:var(--bg)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ncard{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:.25s;background:#fff;display:flex;flex-direction:column}
.ncard:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(16,32,48,.10)}
.ncard .nimg{aspect-ratio:736/400;height:auto;background:linear-gradient(135deg,#16283A,#25384D);display:flex;align-items:center;justify-content:center;font-size:13px;color:#7E93A6;letter-spacing:1px;overflow:hidden}
.ncard .nimg img{width:100%;height:100%;object-fit:cover}
.ncard .nb{padding:20px;display:flex;flex-direction:column;flex:1}
.ncard h3{font-size:16px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:48px}
.ncard p{font-size:13px;color:var(--gray);margin-top:8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.ncard time{font-size:12px;color:#9AA6B2;display:block;margin-top:auto;padding-top:14px}

/* ---------- faq ---------- */
.faq{background:#fff}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.qa{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:0 20px;transition:.2s}
.qa[open]{border-color:#F3B3A5;box-shadow:0 10px 26px rgba(16,32,48,.07)}
.qa summary{list-style:none;cursor:pointer;padding:18px 26px 18px 0;font-size:15px;font-weight:600;position:relative}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";position:absolute;right:0;top:14px;font-size:20px;color:var(--red);font-weight:400}
.qa[open] summary::after{content:"\2212"}
.qa p{font-size:13.5px;color:var(--gray);padding:0 0 18px;margin-top:-4px;line-height:1.8}

/* ---------- contact ---------- */
.contact{background:var(--bg)}
.contact-body{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:stretch}
.cform .row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.cform input,.cform select,.cform textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:13px 16px;font-size:14px;font-family:inherit;color:var(--ink);background:#fff;outline:0;transition:.2s}
.cform input:focus,.cform select:focus,.cform textarea:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(226,54,20,.10)}
.cform textarea{min-height:120px;resize:vertical;margin-bottom:16px}
.cform .btn{width:100%;height:48px}
.cinfo{border:1px solid var(--line);border-radius:14px;padding:26px;background:#fff;display:flex;flex-direction:column}
.ci-row{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px}
.ci-row span{color:var(--gray);flex:none}
.ci-row b{font-weight:600;text-align:right}
.ci-row a{color:inherit}
.article .tel-link{color:var(--red);font-weight:600}
.ci-row:last-of-type{border-bottom:0}
.qr{margin-top:auto;text-align:center;padding-top:20px;border-top:1px solid var(--line)}
.qr img{width:132px;height:132px;margin:0 auto 10px;border-radius:8px}
.qr div{font-size:13px;color:var(--gray)}

/* ---------- footer ---------- */
footer{position:relative;border-top:2px solid transparent;border-image:linear-gradient(90deg,rgba(226,54,20,0) 0%,rgba(226,54,20,.9) 22%,rgba(226,54,20,.9) 78%,rgba(226,54,20,0) 100%) 1;background:radial-gradient(1100px 320px at 78% -10%,rgba(59,76,97,.55) 0%,rgba(59,76,97,0) 70%),linear-gradient(180deg,#151C25 0%,#1C2531 100%);color:#8C9AA8;font-size:14px;padding:56px 0 0;overflow:hidden}
footer::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:56px 56px;pointer-events:none}
footer::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(21,28,37,.02) 0%,rgba(21,28,37,.70) 12%,rgba(21,28,37,.95) 22%,#1C2531 40%);pointer-events:none}
footer .wrap{position:relative;z-index:1}
.fgrid{display:grid;grid-template-columns:1.35fr .95fr .95fr 1.45fr;gap:32px;padding-bottom:40px}
footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.fbrand-txt{font-size:13.5px;line-height:1.9}
footer a:hover{color:var(--red)}
footer li{margin-bottom:9px;font-size:13.5px;word-break:break-all}
.fqr{margin-top:16px;display:flex;align-items:center;gap:10px}
.fqr img{width:78px;height:78px;border-radius:6px;background:#fff;padding:3px}
.fqr span{font-size:12px;color:#8C9AA8;line-height:1.5}
.copy{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:12.5px;color:#6E7C8A;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ---------- side fixed ---------- */
.side-fixed{position:fixed;right:16px;top:50%;bottom:auto;transform:translateY(-50%);z-index:800;display:flex;flex-direction:column;gap:8px}
.sf-item{width:56px;height:56px;border-radius:10px;background:#2A3644;color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:12px;gap:2px;box-shadow:0 8px 22px rgba(0,0,0,.18);transition:.2s;position:relative;cursor:pointer;border:0;font-family:inherit}
.sf-item:hover{background:var(--red)}
.sf-item.is-hide{display:none}
.sf-item svg{width:20px;height:20px;flex:0 0 auto}
.sf-item.sf-qr svg{width:22px;height:22px;flex:0 0 auto}
.sf-pop{position:absolute;right:66px;top:50%;transform:translateY(-50%);width:170px;box-sizing:border-box;background:#fff;border-radius:10px;padding:10px;box-shadow:0 12px 32px rgba(0,0,0,.18);display:none;text-align:center}
.sf-pop img{width:150px;height:150px;max-width:none;display:block;margin:0 auto;border-radius:4px;object-fit:contain;background:#fff}
.sf-pop span{display:block;font-size:12px;color:var(--gray);margin-top:7px;white-space:nowrap}
.sf-item.sf-qr:hover .sf-pop,.sf-item.sf-tel:hover .sf-pop,.sf-item.open .sf-pop{display:block}
.sf-pop::before{content:"";position:absolute;left:100%;top:0;width:16px;height:100%}
.sf-pop-tel{padding:14px 16px;text-align:left;min-width:186px}
.sf-pop-tel a{display:block;white-space:nowrap}
.sf-pop-tel a+a{margin-top:11px;padding-top:11px;border-top:1px solid #EDF0F4}
.sf-pop-tel span{display:block;font-size:12px;color:#66707B;margin-bottom:3px}
.sf-pop-tel b{display:block;font-size:16px;font-weight:800;color:#16202B;letter-spacing:.3px;transition:.2s}
.sf-pop-tel a:hover b{color:var(--red)}

/* ---------- inner layout ---------- */
.page-body{padding:56px 0 84px}
.layout{display:grid;grid-template-columns:250px 1fr;gap:40px;align-items:start}
.sidebar{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;position:sticky;top:96px}
.sb-head{background:var(--navy);color:#fff;padding:18px 20px;font-size:16px;font-weight:700}
.sb-head small{display:block;font-size:11px;letter-spacing:2px;color:#8FA3B6;font-weight:400;margin-top:3px;text-transform:uppercase}
.sb-list a{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;font-size:14.5px;color:#3A4753;border-bottom:1px solid var(--line);transition:.2s}
.sb-list a:last-child{border-bottom:0}
.sb-list a:hover,.sb-list a.on{background:#FFF4F1;color:var(--red);padding-left:24px}
.sb-contact{margin-top:18px;border-radius:12px;overflow:hidden;background:var(--navy);color:#fff;padding:22px}
.sb-contact b{display:block;font-size:13px;color:#8FA3B6;font-weight:400}
.sb-contact strong,.sb-contact .sb-tel{display:block;font-size:19px;color:#fff;margin:6px 0 14px;font-weight:700;letter-spacing:.3px}
.sb-contact .sb-tel:hover{color:var(--red)}
.main-col{min-width:0}
.list-title{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:2px solid var(--line);margin-bottom:26px}
.list-title h2{font-size:22px;font-weight:800}
.list-title span{font-size:13px;color:var(--gray)}
.list-title span b{color:var(--red);font-size:16px}

/* ---------- product list ---------- */
.plist{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pitem{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:.25s;background:#fff;display:flex;flex-direction:column}
.pitem:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(16,32,48,.10);border-color:#F3B3A5}
.pitem .pic{aspect-ratio:4/3;height:auto;display:flex;align-items:center;justify-content:center;padding:0;background:#fff;overflow:hidden}
.pitem .pic img{width:100%;height:100%;object-fit:cover;transition:.3s}
.pitem.square .pic{aspect-ratio:1/1;padding:14px}
.pitem.square .pic img{object-fit:contain}
.pitem:hover .pic img{transform:scale(1.05)}
.pitem .info{padding:16px 18px 18px;border-top:1px solid var(--line)}
.pitem h3{font-size:15.5px;font-weight:700;line-height:1.5}
.pitem p{font-size:12.5px;color:var(--gray);margin-top:6px}

/* ---------- pagination ---------- */
.pager{display:flex;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap}
.pager a,.pager span{min-width:40px;height:40px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:8px;font-size:14px;color:#3A4753;background:#fff;transition:.2s}
.pager a:hover{border-color:var(--red);color:var(--red)}
.pager .current{border-color:var(--red);background:var(--red);color:#fff}

/* ---------- news list ---------- */
.nlist{display:flex;flex-direction:column;gap:18px}
.nitem{display:grid;grid-template-columns:220px 1fr;gap:22px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;transition:.25s}
.nitem:hover{box-shadow:0 18px 40px rgba(16,32,48,.09);border-color:#F3B3A5}
.nitem .pic{height:150px;overflow:hidden;background:var(--bg);display:flex;align-items:center;justify-content:center}
.nitem .pic img{width:100%;height:100%;object-fit:cover}
.nitem .txt{padding:18px 22px 18px 0;display:flex;flex-direction:column}
.nitem h3{font-size:17px;font-weight:700;line-height:1.5}
.nitem p{font-size:13.5px;color:var(--gray);margin-top:8px}
.nitem time{font-size:12.5px;color:#9AA6B2;margin-top:auto;padding-top:12px}
.ntime{color:var(--red);font-weight:700;font-size:13px}

/* ---------- detail ---------- */
.detail{background:#fff;border:1px solid var(--line);border-radius:12px;padding:36px 40px}
.detail h1{font-size:clamp(22px,2.5vw,30px);font-weight:800;line-height:1.45}
.detail .meta{display:flex;gap:20px;flex-wrap:wrap;color:var(--gray);font-size:13px;padding:16px 0;border-bottom:1px solid var(--line);margin-bottom:26px}
.article{font-size:15.5px;line-height:2;color:#2B3742}
.article p{margin-bottom:16px}
.article img{max-width:100%;height:auto;margin:12px auto;border-radius:8px}
.article h2,.article h3,.article h4{margin:26px 0 14px;font-weight:800;line-height:1.4}
.article h2{font-size:22px}.article h3{font-size:19px}.article h4{font-size:17px}
.article ul,.article ol{margin:0 0 16px 22px}
.article ul{list-style:disc}.article ol{list-style:decimal}
.article li{margin-bottom:8px}
.article table{width:100%;border-collapse:collapse;margin:18px 0}
.article table td,.article table th{border:1px solid var(--line);padding:10px 12px;font-size:14px}
.article table th{background:var(--bg);font-weight:700}
.detail-foot{display:flex;justify-content:space-between;gap:16px;margin-top:36px;padding-top:22px;border-top:1px solid var(--line);font-size:14px;flex-wrap:wrap}
.detail-foot a{color:var(--red);font-weight:600}

/* ---------- product detail ---------- */
.pdetail{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-bottom:40px}
.pdetail .gallery{border:1px solid var(--line);border-radius:12px;padding:20px;background:#fff;display:flex;align-items:center;justify-content:center;aspect-ratio:1/1;height:auto}
.pdetail .gallery img{width:100%;height:100%;object-fit:contain}
.pdetail .sum h1{font-size:clamp(21px,2.3vw,28px);font-weight:800;line-height:1.45}
.pdetail .sum .desc{color:var(--gray);font-size:14.5px;margin:16px 0 24px;line-height:1.9}
.spec{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:26px}
.spec div{background:var(--bg);border-radius:8px;padding:12px 14px;font-size:13.5px}
.spec div span{display:block;color:var(--gray);font-size:12px;margin-bottom:3px}
.spec div b{font-weight:700}
.pdetail .buy{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- tabs ---------- */
.tabs{display:flex;gap:6px;border-bottom:2px solid var(--line);margin-bottom:26px;flex-wrap:wrap}
.tabs button{background:0;border:0;padding:14px 22px;font-size:15px;color:var(--gray);cursor:pointer;font-family:inherit;position:relative;font-weight:600}
.tabs button.on{color:var(--red)}
.tabs button.on::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--red)}
.tab-pane{display:none}
.tab-pane.on{display:block}

/* ---------- empty ---------- */
.empty{text-align:center;padding:70px 0;color:var(--gray)}
.empty svg{width:64px;height:64px;margin:0 auto 14px;color:#C9D1D9}

/* ---------- responsive ---------- */
@media(max-width:1100px){
  .nav{display:none}
  .menu-toggle{display:block}
  .grid-p{grid-template-columns:repeat(3,1fr)}
  .inds{grid-template-columns:repeat(3,1fr)}
  .plist{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .bn-view{aspect-ratio:750/560}
  .bn-arrow{display:none}
  .bn-dots{bottom:10px;gap:7px}
  .bn-dot{width:7px;height:7px}
  .bn-dot.active{width:18px}
  .trust .wrap{grid-template-columns:repeat(2,1fr)}
  .trust div:nth-child(2){border-right:0}
  .trust div:nth-child(1),.trust div:nth-child(2){border-bottom:1px solid var(--line)}
  .why-grid{grid-template-columns:1fr 1fr}
  .about .wrap{grid-template-columns:1fr;gap:32px}
  .news-grid{grid-template-columns:1fr 1fr}
  .fgrid{grid-template-columns:1fr 1fr}
  .logo-grid{grid-template-columns:repeat(3,1fr)}
  .lg{height:96px}
  .faq-grid{grid-template-columns:1fr}
  .contact-body{grid-template-columns:1fr;gap:26px}
  .layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .pdetail{grid-template-columns:1fr;gap:24px}
  .pdetail .gallery{min-height:300px}
  .nitem{grid-template-columns:160px 1fr;gap:16px}
  .detail{padding:24px 20px}
  section{padding:60px 0}
  .page-body{padding:36px 0 56px}
}
@media(max-width:640px){
  .wrap{width:calc(100% - 28px)}
  .topbar .wrap{height:auto;padding:6px 0;flex-wrap:wrap;font-size:12px;gap:4px}
  .site-header .wrap{height:60px;gap:10px}
  .site-header .logo img{height:32px}
  .site-header .tel{padding-left:0;border-left:0;gap:8px}
  .site-header .tel small{display:none}
  .site-header .tel strong{font-size:14px;letter-spacing:0}
  .site-header .tel .btn{height:36px;padding:0 10px;font-size:13px;white-space:nowrap;flex:none}
  .side-fixed{display:none}
  .grid-p{grid-template-columns:1fr 1fr;gap:12px}
  .pcard{padding:14px}
  .pcard .ph{height:110px}
  .pcard .ph img{max-height:100px}
  .pcard p{font-size:12px}
  .inds{grid-template-columns:1fr 1fr}
  .why-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .fgrid{grid-template-columns:1fr}
  .page-banner img{height:190px}
  .page-banner .pb-text p{display:none}
  .logo-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .lg{height:80px}
  .lg img{max-width:70%;max-height:42px}
  .cform .row{grid-template-columns:1fr}
  .cinfo{padding:20px}
  .plist{grid-template-columns:1fr 1fr;gap:12px}
  .pitem .pic{height:140px;padding:10px}
  .pitem .info{padding:12px}
  .pitem h3{font-size:14px}
  .nitem{grid-template-columns:1fr}
  .nitem .pic{height:170px}
  .nitem .txt{padding:0 16px 16px}
  .side-fixed{right:8px;bottom:170px;gap:6px}
  .sf-item{width:44px;height:44px;font-size:11px}
  .sf-item svg{width:17px;height:17px}
  .sf-pop{right:54px}
  .sf-pop img{width:110px;height:110px}
  .spec{grid-template-columns:1fr}
  section{padding:44px 0}
  .sec-head{margin-bottom:30px}
}

/* ---------- mobile nav drawer ---------- */
.nav-drawer{position:fixed;inset:0;background:rgba(10,17,25,.55);z-index:950;display:none}
.nav-drawer.open{display:block}
.nav-panel{position:absolute;right:0;top:0;bottom:0;width:min(320px,86vw);background:#fff;overflow-y:auto;padding:18px}
.nav-panel .np-close{background:0;border:0;font-size:26px;float:right;cursor:pointer;color:var(--ink)}
.nav-panel a{display:block;padding:13px 4px;border-bottom:1px solid var(--line);font-size:15px;color:#2B3742}
.nav-panel a.sub{padding-left:18px;font-size:14px;color:#5A6672}
.nav-panel .np-tel{display:block;margin-top:18px;color:var(--red);font-weight:700;font-size:17px}

@media(max-width:420px){
  .site-header .tel > div{display:none}
  .site-header .tel{padding-left:0;border-left:0}
  .site-header .logo img{height:28px}
}

/* ---------- 分页（系统输出） ---------- */
.pagination{display:flex;justify-content:center;margin-top:40px}
.pagination .page{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;width:100%}
.pagination .rows{flex:0 0 100%;text-align:center;list-style:none;font-size:13px;color:var(--gray);margin-top:2px}
.pagination .rows b{color:var(--red);font-weight:700;margin:0 3px}
.pagination a,.pagination span{min-width:40px;height:40px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:8px;font-size:14px;color:#3A4753;background:#fff;transition:.2s}
.pagination a:hover{border-color:var(--red);color:var(--red)}
.pagination .current{border-color:var(--red);background:var(--red);color:#fff}
.pagination .disabled{color:#C9D1D9}
/* ---------- 内页补充 ---------- */
.sb-list a.sub{padding-left:34px;font-size:13.5px;color:#66707B}
.sb-contact .btn{width:100%;margin-top:6px;height:40px;font-size:14px}
.related-title{font-size:20px;font-weight:800;margin:48px 0 20px;padding-left:12px;border-left:4px solid var(--red)}
.empty{padding:80px 0;text-align:center;color:var(--gray)}
.chip{display:inline-block;padding:4px 12px;border-radius:99px;background:#FFF4F1;color:var(--red);font-size:12.5px;margin:0 8px 8px 0}

.btn-line{border:1px solid var(--line);color:var(--ink);background:#fff;font-weight:500}
.btn-line:hover{border-color:var(--red);color:var(--red)}

/* ---------- 搜索 ---------- */
.search-toggle{background:0;border:0;color:#2B3742;cursor:pointer;padding:8px;margin-left:auto;border-radius:6px;display:flex;align-items:center}
.search-toggle:hover{background:var(--bg);color:var(--red)}
.search-panel{display:none;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(16,32,48,.06)}
.search-panel.open{display:block}
.search-panel form{display:flex;gap:10px;padding:14px 0}
.search-panel input{flex:1;border:1px solid var(--line);border-radius:8px;padding:12px 16px;font-size:14px;font-family:inherit;outline:0}
.search-panel input:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(226,54,20,.10)}
.search-panel .btn{height:46px}
@media(max-width:640px){
  .search-panel form{padding:10px 0}
  .search-panel input{padding:10px 12px}
}

/* ---------- 手机端：侧边栏改为横滑分类条 ---------- */
@media(max-width:900px){
  .sidebar{margin-bottom:18px;border-radius:10px}
  .sb-head{padding:14px 16px;font-size:15px}
  .sb-head small{font-size:10px;margin-top:2px}
  .sb-list{display:flex;overflow-x:auto;gap:8px;padding:12px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .sb-list::-webkit-scrollbar{display:none}
  .sb-list a{border:1px solid var(--line);border-radius:99px;padding:7px 14px;white-space:nowrap;border-bottom:0;font-size:13.5px;flex:none}
  .sb-list a span{display:none}
  .sb-list a:hover,.sb-list a.on{padding-left:14px;background:#FFF4F1}
  .sb-list a.sub{display:none}
  .sb-contact{display:none}
}

/* ---------- 分类介绍 ---------- */
.cat-intro{display:grid;grid-template-columns:1fr 360px;gap:32px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px 30px;margin-bottom:32px}
.cat-intro .ci-txt{font-size:15px;line-height:2;color:#3A4753}
.cat-intro .ci-img img{width:100%;border-radius:10px;display:block}
@media(max-width:900px){
  .cat-intro{grid-template-columns:1fr;gap:18px;padding:20px}
}

/* ---------- 证书 / 客户图库 ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cert{border:1px solid var(--line);border-radius:12px;padding:18px 16px;background:#fff;transition:.25s}
.cert:hover{box-shadow:0 16px 36px rgba(16,32,48,.09);border-color:#F3B3A5}
.cert-img{aspect-ratio:1/1.3;display:flex;align-items:center;justify-content:center;margin-bottom:12px;background:#fff}
.cert-img img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}
.cert-name{font-size:13.5px;text-align:center;color:#3A4753;line-height:1.5}
@media(max-width:900px){.cert-grid{grid-template-columns:repeat(2,1fr);gap:12px}}

/* ---------- 厂区实拍 ---------- */
.photo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:24px}
.photo-grid img{width:100%;height:230px;object-fit:cover;border-radius:10px;display:block;transition:.3s;margin:0}
.photo-grid img:hover{transform:scale(1.02)}
@media(max-width:640px){
  .photo-grid{grid-template-columns:1fr}
  .photo-grid img{height:180px}
}

/* ---------- 方案 / 案例卡片（5:3 图 + 固定文字区） ---------- */
.pitem.photo .pic{aspect-ratio:5/3;padding:0;background:#EEF1F4}
.pitem.photo .pic img{object-fit:cover}
.pitem.photo .info{display:flex;flex-direction:column;flex:1}
.pitem.photo .info h3{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5;min-height:48px}
.pitem.photo .info p{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;margin-top:8px}

/* ---------- 详情页 banner 加深遮罩 ---------- */
.page-banner.banner-detail .pb-text{background:linear-gradient(90deg,rgba(8,14,22,.92) 0%,rgba(8,14,22,.78) 55%,rgba(8,14,22,.55) 100%)}
.page-banner.banner-detail .pb-text h1{max-width:820px;line-height:1.35}
@media(max-width:640px){.page-banner.banner-detail .pb-text h1{font-size:18px}}

/* ---------- 页脚电话突出 ---------- */
.fphone{display:flex;flex-direction:column;gap:12px;margin:4px 0 18px;padding-left:14px;border-left:3px solid var(--red)}
.fp-item{display:block}
.fp-item span{display:block;font-size:12px;color:#8C9AA8;line-height:1.4}
.fp-item strong{display:block;font-size:22px;font-weight:800;color:#fff;letter-spacing:.6px;line-height:1.3;transition:.2s}
.fp-item strong a{color:inherit}
.fp-item:hover strong a{color:var(--red)}
.fp-item:hover strong{color:var(--red)}
.fp-item.sub strong{font-size:18px;letter-spacing:.2px}
@media(max-width:640px){
  footer{padding:40px 0 0;font-size:15px}
  .fgrid{grid-template-columns:1fr 1fr;gap:26px 18px;padding-bottom:28px}
  .fgrid>div:first-child,.fgrid>div:last-child{grid-column:1/-1}
  footer h4{font-size:16px;margin-bottom:12px}
  footer li{font-size:15px;margin-bottom:11px;line-height:1.6}
  .fbrand-txt{font-size:14.5px;line-height:1.85}
  .fqr{margin-top:14px}
  .fqr img{width:88px;height:88px}
  .fqr span{font-size:13.5px}
  .fphone{gap:15px;margin:2px 0 18px;padding-left:16px;border-left-width:3px}
  .fp-item span{font-size:13.5px}
  .fp-item strong{font-size:24px;letter-spacing:.4px}
  .fp-item.sub strong{font-size:21px}
  .copy{font-size:13px;padding:16px 0;flex-direction:column;align-items:center;gap:6px;text-align:center}
}

/* ---------- 电脑端复制电话提示 ---------- */
.tel-toast{position:fixed;left:50%;bottom:70px;transform:translate(-50%,12px);background:rgba(22,32,43,.94);color:#fff;font-size:14px;letter-spacing:.3px;padding:11px 20px;border-radius:8px;box-shadow:0 10px 26px rgba(0,0,0,.25);opacity:0;pointer-events:none;transition:opacity .22s,transform .22s;z-index:2147483000}
.tel-toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 联系我们页 ---------- */
.cp-head{text-align:center;margin-bottom:34px}
.cp-head h1{font-size:30px;color:var(--ink);font-weight:800;letter-spacing:.5px}
.cp-head p{margin-top:10px;color:var(--gray);font-size:14.5px}
.cp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:20px}
.cp-card{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 22px;transition:.2s}
.cp-card:hover{border-color:var(--red);box-shadow:0 12px 28px rgba(22,32,43,.08);transform:translateY(-2px)}
.cp-ico{flex:0 0 48px;width:48px;height:48px;border-radius:12px;background:rgba(226,54,20,.08);color:var(--red);display:flex;align-items:center;justify-content:center}
.cp-ico svg{width:24px;height:24px}
.cp-card b,.cp-addr b{display:block;font-size:13px;color:var(--gray);font-weight:400;margin-bottom:5px}
.cp-card strong{display:block;font-size:19px;color:var(--ink);font-weight:800;letter-spacing:.3px;line-height:1.3;transition:.2s}
.cp-card span{display:block;font-size:13px;color:var(--gray);margin-top:4px}
.cp-card:hover strong{color:var(--red)}
.cp-bottom{display:grid;grid-template-columns:1fr 300px;gap:20px}
.cp-addr{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px 24px}
.cp-addr strong{display:block;font-size:17px;color:var(--ink);font-weight:700;line-height:1.6;margin:2px 0 18px}
.cp-actions{display:flex;gap:12px;flex-wrap:wrap}
.cp-qr{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px}
.cp-qr img{width:150px;height:150px;max-width:100%;object-fit:contain;border-radius:6px}
.cp-qr span{font-size:13px;color:var(--gray);line-height:1.7}
@media(max-width:900px){
  .cp-grid{grid-template-columns:1fr;gap:14px}
  .cp-bottom{grid-template-columns:1fr}
  .cp-head h1{font-size:24px}
  .cp-card{padding:18px}
}

/* ---------- 关于我们页 ---------- */
.ap-head{text-align:center;margin-bottom:30px}
.ap-head .en{font-size:13px;letter-spacing:3px;color:var(--red);font-weight:700}
.ap-head h1{font-size:30px;color:var(--ink);font-weight:800;letter-spacing:.5px;margin-top:8px}
.ap-head p{margin-top:10px;color:var(--gray);font-size:14.5px}
.ap-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:34px}
.ap-stats>div{background:var(--bg);border-radius:12px;padding:22px 16px;text-align:center}
.ap-stats b{display:block;font-size:28px;font-weight:800;color:var(--navy);line-height:1.15}
.ap-stats small{font-size:13px;font-weight:600;color:var(--gray);margin-left:2px}
.ap-stats span{display:block;margin-top:8px;font-size:13px;color:var(--gray)}
.ap-body{font-size:15px;line-height:1.95;color:#3C4753}
.ap-body p{margin-bottom:14px}
.ap-body img{max-width:100%;height:auto;border-radius:10px;margin:12px 0}
.ap-body table{max-width:100%;border-collapse:collapse}
.ap-body table td{border:0!important;padding:0}
.ap-body h1,.ap-body h2{font-size:20px;margin:18px 0 10px}
.ap-body h3{font-size:17px;margin:16px 0 8px}
.ap-body table img{width:auto;max-width:100%}
@media(max-width:900px){
  .ap-head h1{font-size:24px}
  .ap-stats{grid-template-columns:1fr 1fr;gap:12px;margin-bottom:26px}
  .ap-stats b{font-size:23px}
  .ap-body{font-size:14.5px;line-height:1.85}
}