:root{
  --navy-900:#081C36;
  --navy-800:#0E2A4E;
  --navy-700:#16406F;
  --blue:#2E6E9E;
  --orange:#F08A24;
  --amber:#F7B64C;
  --bg-light:#F3F6FA;
  --bg-mid:#E9EFF6;
  --ink:#16304F;
  --muted:#5A6B7D;
  --line:#DCE4EE;
  --white:#FFFFFF;
  --shadow:0 18px 44px rgba(14,42,78,.12);
  --shadow-sm:0 8px 22px rgba(14,42,78,.09);
  --radius:18px;
  --font-disp:"Noto Serif SC","Songti SC","SimSun",serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--ink);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased;font-size:16px}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.container{width:min(1240px,92%);margin:0 auto}
section{scroll-margin-top:72px}
::selection{background:var(--orange);color:#fff}

/* ===== 签名元素：夹胶层 ===== */
.laminate-line{display:flex;align-items:center;gap:7px;height:10px}
.laminate-line .g{width:52px;height:3px;background:var(--blue);border-radius:2px}
.laminate-line .f{width:14px;height:8px;background:var(--orange);border-radius:2px}
.laminate-line .g.g2{width:52px}

/* ===== 顶部导航 ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(10,28,54,.32);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom:1px solid rgba(255,255,255,.14);transition:background .3s,box-shadow .3s}
.site-header.scrolled{background:rgba(10,28,54,.55);box-shadow:0 6px 24px rgba(14,42,78,.18)}
/* 子页面（浅色背景）导航变体：浅色毛玻璃 + 深色文字 */
body:not([data-page="index"]) .site-header{background:rgba(255,255,255,.72);border-bottom:1px solid rgba(14,42,78,.1)}
body:not([data-page="index"]) .site-header.scrolled{background:rgba(255,255,255,.86);box-shadow:0 6px 24px rgba(14,42,78,.1)}
body:not([data-page="index"]) .brand-name .cn{color:var(--navy-800)}
body:not([data-page="index"]) .brand-name .en{color:var(--muted)}
body:not([data-page="index"]) .nav-links a{color:var(--ink)}
body:not([data-page="index"]) .nav-links a .en{color:var(--muted)}
body:not([data-page="index"]) .nav-toggle span{background:var(--navy-800)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand .logo{width:56px;height:56px;border-radius:10px;overflow:hidden;background:#fff;border:1px solid var(--line);padding:3px;flex:none}
.brand .logo img{width:100%;height:100%;object-fit:contain}
.brand-name{line-height:1.25;white-space:nowrap}
.brand-name .cn{font-family:var(--font-disp);font-weight:700;font-size:17px;color:#fff;letter-spacing:.4px}
.brand-name .en{font-size:9.5px;color:rgba(255,255,255,.68);letter-spacing:.3px}
html[lang="en"] .site-header .brand-name .en{display:block;font-size:14px;font-weight:700;color:#fff;letter-spacing:1px;line-height:1.35}
html[lang="en"] .social-title .en-dec{display:none}
html[lang="en"] .footer-brand .brand-name .en{font-size:13px;font-weight:600;color:#fff;letter-spacing:.8px}
@media (max-width:991px){
  html[lang="en"] .site-header .brand-name .en{font-size:12.5px;letter-spacing:.5px}
  html[lang="en"] .footer-brand .brand-name .en{font-size:12px}
}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0 auto;padding:0 22px}
.nav-links a{font-size:14.5px;font-weight:500;color:#EDF4FB;position:relative;padding:6px 0;transition:color .25s;white-space:nowrap}
.nav-links a .en{font-size:10.5px;color:rgba(255,255,255,.62);font-weight:400;margin-left:6px;letter-spacing:.5px;text-transform:uppercase}
.nav-links a:hover .en,.nav-links a.active .en{color:var(--orange)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--orange);transition:width .25s}
.nav-links a:hover,.nav-links a.active{color:var(--amber)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{display:inline-flex;align-items:center;gap:7px;background:var(--orange);color:#fff;font-weight:600;font-size:13.5px;padding:9px 18px;border-radius:999px;transition:background .25s,transform .25s;white-space:nowrap;flex:none}
.nav-cta:hover{background:#d97a15;transform:translateY(-1px)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== 语言切换 ===== */
.lang-switch{display:inline-flex;align-items:center;gap:3px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:3px;flex:none;margin-left:12px}
.lang-switch-item{font-size:12px;line-height:1;padding:6px 11px;border-radius:999px;color:rgba(255,255,255,.82);background:transparent;border:0;cursor:pointer;font-weight:500;transition:background .2s,color .2s}
.lang-switch-item:hover{color:#fff}
.lang-switch-item.active{background:var(--orange);color:#fff}
body:not([data-page="index"]) .lang-switch{background:rgba(14,42,78,.06);border-color:rgba(14,42,78,.16)}
body:not([data-page="index"]) .lang-switch-item{color:var(--navy-700)}
body:not([data-page="index"]) .lang-switch-item:hover{color:var(--orange)}
body:not([data-page="index"]) .lang-switch-item.active{background:var(--orange);color:#fff}
@media (max-width:900px){
  .lang-switch{margin-left:auto;margin-right:10px}
}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;background:var(--navy-900)}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.5;transform:scale(1.06)}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,28,54,.96) 0%,rgba(8,28,54,.84) 40%,rgba(8,28,54,.32) 78%,rgba(8,28,54,.52) 100%)}
.hero-inner{position:relative;z-index:2;width:min(1180px,92%);margin:0 auto;padding:150px 0 90px}
.hero .kicker{display:inline-flex;align-items:center;gap:12px;font-size:13px;letter-spacing:2.5px;color:#BBD3EA;font-weight:500;margin-bottom:26px}
.hero .kicker::before{content:"";width:34px;height:2px;background:var(--orange)}
.hero h1{font-family:var(--font-disp);font-weight:900;font-size:clamp(38px,5.4vw,64px);line-height:1.16;color:#fff;margin-bottom:10px}
.hero h1 .accent{color:var(--amber)}
.hero .hero-en{font-size:clamp(14px,1.5vw,18px);letter-spacing:1px;color:#AFC8E0;font-weight:300;margin-bottom:26px}
.hero .hero-desc{font-size:clamp(15px,1.5vw,18px);color:#D5E3F1;max-width:560px;font-weight:300;margin-bottom:38px}
.hero .hero-lam{display:flex;align-items:center;gap:7px;margin-bottom:34px}
.hero .hero-lam .g{width:70px;height:4px;background:rgba(120,170,220,.65);border-radius:2px}
.hero .hero-lam .f{width:20px;height:11px;background:var(--orange);border-radius:2px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:64px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:15px 34px;border-radius:999px;font-weight:600;font-size:16px;transition:.3s;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:#d97a15;transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,138,36,.35)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06)}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}

/* ===== 通用区块 ===== */
.section{padding:110px 0}
.section-head{max-width:720px;margin:0 auto 64px;text-align:center}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:3px;color:var(--blue);font-weight:600;margin-bottom:14px}
.section-head h2{font-family:var(--font-disp);font-weight:700;font-size:clamp(30px,3.6vw,44px);color:var(--navy-800);line-height:1.3}
.section-head .head-en{font-size:14px;letter-spacing:2px;color:var(--muted);font-weight:300;margin-top:8px}
.section-head .divider{display:flex;align-items:center;justify-content:center;gap:7px;margin:18px auto 0}
.section-head .divider .g{width:46px;height:3px;background:var(--blue);border-radius:2px}
.section-head .divider .f{width:13px;height:8px;background:var(--orange);border-radius:2px}
.bg-light{background:var(--bg-light)}
.bg-mid{background:var(--bg-mid)}

/* ===== 关于我们 ===== */
.about-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
.about-text h3{font-family:var(--font-disp);font-weight:700;font-size:28px;color:var(--navy-800);margin-bottom:6px}
.about-text .sub{font-size:14px;color:var(--blue);letter-spacing:1px;font-weight:500;margin-bottom:24px}
.about-text p{color:#33475C;font-size:16px;margin-bottom:18px;font-weight:300}
.about-text p strong{font-weight:600;color:var(--navy-800)}
.about-points{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px}
.point{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;transition:.3s}
.point:hover{box-shadow:var(--shadow-sm);transform:translateY(-3px);border-color:var(--amber)}
.point svg{flex:none;width:22px;height:22px;margin-top:2px}
.point .pt{font-weight:600;font-size:15px;color:var(--navy-800)}
.point .pd{font-size:13px;color:var(--muted);margin-top:2px}
.about-visual{position:relative}
.about-visual .main-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.about-visual .main-img img{width:100%;height:460px;object-fit:cover;transition:transform .6s}
.about-visual .main-img:hover img{transform:scale(1.04)}
.about-badge{position:absolute;bottom:-26px;left:-26px;background:var(--navy-800);color:#fff;border-radius:16px;padding:18px 24px;box-shadow:var(--shadow);width:300px;box-sizing:border-box}
.about-badge .bn{font-family:var(--font-disp);font-weight:700;font-size:20px;color:var(--amber)}
.about-badge .bl{font-size:12.5px;color:#C4D6E9;margin-top:4px;letter-spacing:.4px}
/* ===== 关于我们 - 配图轮播 ===== */
.about-slider{position:relative;height:460px;border-radius:var(--radius);box-shadow:var(--shadow)}
.about-slider .about-slide{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;visibility:hidden;transition:opacity .6s ease,visibility .6s ease}
.about-slider .about-slide.active{opacity:1;visibility:visible}
.about-slider .about-slide .main-img{height:100%;border-radius:var(--radius);box-shadow:none}
.about-slider .about-slide .main-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.about-slider:hover .about-slide .main-img img{transform:scale(1.04)}
.about-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:44px;height:44px;border-radius:50%;border:none;background:rgba(8,28,54,.55);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.3s;backdrop-filter:blur(4px)}
.about-arrow:hover{background:var(--orange)}
.about-arrow.prev{left:16px}
.about-arrow.next{right:16px}
.about-dots{position:absolute;left:0;right:0;bottom:14px;z-index:4;display:flex;justify-content:center;gap:9px}
.about-dots .dot{width:10px;height:10px;border-radius:50%;border:none;background:rgba(255,255,255,.45);cursor:pointer;transition:.3s;padding:0}
.about-dots .dot.active{background:var(--orange);width:26px;border-radius:999px}
.stats-band{background:var(--navy-800);color:#fff;border-radius:var(--radius);margin-top:90px;padding:44px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stats-band .st{text-align:center;border-left:1px solid rgba(255,255,255,.16);padding:0 16px}
.stats-band .st:first-child{border-left:none}
.stats-band .sv{font-family:var(--font-disp);font-weight:700;font-size:clamp(28px,3vw,42px);color:var(--amber)}
.stats-band .sl{font-size:13.5px;color:#C4D6E9;margin-top:6px}

/* ===== 常见问题 ===== */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:20px}
.faq-item{background:#fff;border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:var(--radius);padding:26px 30px;transition:.3s;box-shadow:0 2px 10px rgba(14,42,78,.04)}
.faq-item:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.faq-item h3{font-family:var(--font-disp);font-weight:700;font-size:18px;color:var(--navy-800);margin-bottom:10px;line-height:1.5}
.faq-item h3::before{content:"Q";display:inline-block;margin-right:10px;color:var(--amber);font-weight:700}
.faq-item p{font-size:15px;color:var(--muted);line-height:1.9}
.faq-item p::before{content:"A";display:inline-block;margin-right:10px;color:var(--blue);font-weight:700}

/* ===== 产品中心 ===== */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.35s}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--amber)}
.prod-card .img{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-mid)}
.prod-card .img img{width:100%;height:100%;object-fit:cover;transition:transform .55s}
.prod-card:hover .img img{transform:scale(1.06)}
.prod-card .no{position:absolute;top:14px;left:14px;background:rgba(8,28,54,.72);color:var(--amber);font-family:var(--font-disp);font-weight:600;font-size:13px;letter-spacing:1px;padding:5px 12px;border-radius:999px;backdrop-filter:blur(4px)}
.prod-card .body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.prod-card h3{font-family:var(--font-disp);font-weight:700;font-size:20px;color:var(--navy-800)}
.prod-card .pen{font-size:11.5px;letter-spacing:1.4px;color:var(--blue);font-weight:500;margin:4px 0 14px}
.prod-card .desc{font-size:14px;color:#42566B;font-weight:300;flex:1}
.specs{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.spec{font-size:12px;color:var(--navy-700);background:#EAF1F8;border-radius:999px;padding:5px 12px;font-weight:500}
.prod-card .cta-link{margin-top:20px;display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--orange)}
.prod-card .cta-link svg{transition:transform .3s}
.prod-card:hover .cta-link svg{transform:translateX(4px)}
.prod-custom{background:linear-gradient(150deg,var(--navy-800),var(--navy-700));color:#fff;border:none;justify-content:center;align-items:center;text-align:center}
.prod-custom h3{color:#fff;font-size:22px}
.prod-custom .desc{color:#C4D6E9}
.prod-custom .btn{margin-top:24px;background:var(--orange)}
.prod-custom:hover{border-color:transparent;transform:translateY(-6px)}
.prod-cat-label{display:flex;align-items:baseline;justify-content:center;gap:14px;margin:0 auto 30px;max-width:720px;text-align:center;flex-wrap:wrap}
.prod-cat-label span{font-family:var(--font-disp);font-weight:700;font-size:22px;color:var(--navy-800)}
.prod-cat-label::after{content:"";width:42px;height:3px;background:var(--orange);border-radius:2px;transform:translateY(-3px)}
.prod-cat-label::before{content:"";width:42px;height:3px;background:var(--blue);border-radius:2px;transform:translateY(-3px)}
.prod-cat-label .head-en{font-size:12px;letter-spacing:2px;color:var(--blue);font-weight:600}

/* ===== 应用领域 ===== */
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.app-card{border-radius:var(--radius);overflow:hidden;position:relative;height:270px;box-shadow:var(--shadow-sm);transition:.35s}
.app-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.app-card img{width:100%;height:100%;object-fit:cover;transition:transform .55s}
.app-card:hover img{transform:scale(1.07)}
.app-card .ov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,28,54,0) 30%,rgba(8,28,54,.92) 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:26px;transition:.35s}
.app-card .at{color:var(--amber);font-size:12px;letter-spacing:1.5px;font-weight:600;margin-bottom:6px}
.app-card h4{color:#fff;font-family:var(--font-disp);font-weight:700;font-size:21px;margin-bottom:6px}
.app-card p{color:#C4D6E9;font-size:13.5px;font-weight:300;opacity:0;transform:translateY(8px);transition:.35s}
.app-card:hover p{opacity:1;transform:translateY(0)}

/* ===== 服务优势 ===== */
.svc-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 26px;text-align:center;transition:.35s;position:relative;overflow:hidden}
.svc-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--blue),var(--amber));transform:scaleX(0);transform-origin:left;transition:.4s}
.svc-card:hover::before{transform:scaleX(1)}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-sm)}
.svc-card .icon{width:64px;height:64px;margin:0 auto 20px;border-radius:16px;background:#EAF1F8;display:flex;align-items:center;justify-content:center;color:var(--blue);transition:.35s}
.svc-card:hover .icon{background:var(--orange);color:#fff}
.svc-card .icon svg{width:30px;height:30px}
.svc-card h4{font-family:var(--font-disp);font-weight:700;font-size:18px;color:var(--navy-800);margin-bottom:10px}
.svc-card p{font-size:13.5px;color:var(--muted);font-weight:300}

/* ===== 全球业务 ===== */
.global{background:var(--navy-900);color:#fff;position:relative;overflow:hidden}
.global .g-globe{position:absolute;right:-180px;top:50%;transform:translateY(-50%);width:640px;height:640px;opacity:.16;pointer-events:none}
.global .section-head h2{color:#fff}
.global .section-head .head-en{color:#9FBBD7}
.global-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.global-copy p{color:#C4D6E9;font-weight:300;font-size:16px;margin-bottom:20px}
.global-copy p strong{color:#fff;font-weight:600}
.global-list{list-style:none;margin-top:26px;display:grid;gap:14px}
.global-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:#D5E3F1}
.global-list svg{flex:none;width:20px;height:20px;color:var(--amber);margin-top:2px}
.global-tag{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.global-tag span{font-size:12.5px;border:1px solid rgba(255,255,255,.3);color:#C4D6E9;padding:7px 16px;border-radius:999px;font-weight:300}
.global-stat{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.global-stat .gs{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:28px 24px;transition:.3s}
.global-stat .gs:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.global-stat .gn{font-family:var(--font-disp);font-weight:700;font-size:clamp(26px,2.6vw,36px);color:var(--amber)}
.global-stat .gl{font-size:13px;color:#AFC8E0;margin-top:8px}

/* ===== 联系我们 ===== */
.contact-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:stretch}
.contact-info{background:var(--navy-800);color:#fff;border-radius:var(--radius);padding:48px 44px;position:relative;overflow:hidden}
.contact-info::after{content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border:1px solid rgba(255,255,255,.12);border-radius:50%}
.contact-info::before{content:"";position:absolute;right:-30px;top:-30px;width:160px;height:160px;border:1px solid rgba(255,255,255,.14);border-radius:50%}
.contact-info h3{font-family:var(--font-disp);font-weight:700;font-size:28px;margin-bottom:8px;position:relative;z-index:2}
.contact-info .sub{color:#9FBBD7;font-size:14px;margin-bottom:30px;position:relative;z-index:2}
.c-item{display:flex;gap:18px;align-items:flex-start;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.12);position:relative;z-index:2}
.c-item:last-child{border-bottom:none}
.c-item .ic{width:46px;height:46px;flex:none;border-radius:12px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;color:var(--amber)}
.c-item .ic svg{width:22px;height:22px}
.c-item .ct{font-size:12.5px;color:#9FBBD7;letter-spacing:1px;margin-bottom:2px}
.c-item .cv{font-size:17px;font-weight:600;color:#fff}
.c-item .cv a{transition:color .3s}
.c-item .cv a:hover{color:var(--amber)}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:48px 44px;box-shadow:var(--shadow-sm)}
.contact-form h3{font-family:var(--font-disp);font-weight:700;font-size:24px;color:var(--navy-800);margin-bottom:8px}
.contact-form .sub{font-size:14px;color:var(--muted);margin-bottom:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--navy-700);margin-bottom:7px}
.form-group input,.form-group textarea,.form-group select{width:100%;border:1px solid var(--line);border-radius:12px;padding:13px 16px;font-size:15px;font-family:var(--font-body);color:var(--ink);background:#FBFCFE;transition:.25s;outline:none}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(46,110,158,.12);background:#fff}
.form-group textarea{min-height:120px;resize:vertical}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px}
.btn-submit{width:100%;margin-top:10px}

/* ===== 页脚 ===== */
.site-footer{background:var(--navy-900);color:#9FBBD7;padding:56px 0 34px;font-size:14px}
.footer-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:34px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{max-width:340px}
.footer-brand .brand{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.footer-brand .brand .logo{background:#fff}
.footer-brand .brand-name .cn{color:#fff}
.footer-brand .brand-name .en{color:#9FBBD7}
.footer-brand p{font-weight:300;font-size:13.5px;line-height:1.9}
.footer-cols{display:flex;gap:70px;flex-wrap:wrap}
.footer-col h5{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:13.5px;color:#9FBBD7;transition:.25s;font-weight:300}
.footer-col a:hover{color:var(--amber)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-top:26px;font-size:12.5px;color:#7E96B2}

/* ===== 响应式 ===== */
@media (max-width:1160px){
  .nav-cta{display:none}
  .nav-links{gap:18px;padding:0 10px}
}
@media (max-width:1024px){
  .about-wrap,.contact-wrap,.global-wrap{grid-template-columns:1fr;gap:54px}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid{grid-template-columns:repeat(2,1fr)}
  .svc-wrap{grid-template-columns:repeat(2,1fr)}
  .stats-band{grid-template-columns:repeat(2,1fr);gap:24px}
  .stats-band .st{border-left:none;border-top:1px solid rgba(255,255,255,.16);padding-top:18px}
  .stats-band .st:first-child,.stats-band .st:nth-child(2){border-top:none;padding-top:0}
}
@media (max-width:900px){
  .nav-links{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;gap:0;padding:10px 6%;box-shadow:0 20px 40px rgba(14,42,78,.15);transform:translateY(-130%);transition:transform .35s;border-bottom:1px solid var(--line)}
  .nav-links.open{transform:translateY(0)}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:15px 4px;font-size:16px;border-bottom:1px solid var(--bg-mid);color:var(--navy-800)}
  .nav-links a .en{color:var(--muted)}
  .nav-links a:hover,.nav-links a.active{color:var(--orange)}
  .nav-links a::after{display:none}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
}
@media (max-width:900px){
  .hero-inner{padding:130px 0 60px}
  .hero-arrows{display:none}
  .hero-dots{bottom:18px}
  .hero-ctas{margin-bottom:20px}
  .section{padding:80px 0}
  .prod-grid,.app-grid{grid-template-columns:1fr}
  .svc-wrap{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .about-badge{left:8px;right:8px;bottom:-34px}
  .about-points{grid-template-columns:1fr}
  .contact-info,.contact-form{padding:34px 26px}
  .global .g-globe{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}


/* ===== 子页面：页头横幅 ===== */
.page-hero{position:relative;background:var(--navy-900);overflow:hidden;padding:112px 0 62px;text-align:center}
.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(1100px 460px at 50% -10%,rgba(46,110,158,.38),transparent 62%)}
.page-hero .crumb{position:relative;z-index:2;font-size:13px;color:#9FBBD7;letter-spacing:1px;margin-bottom:18px}
.page-hero .crumb a{color:#C4D6E9;transition:color .3s}
.page-hero .crumb a:hover{color:var(--amber)}
.page-hero .crumb .sep{margin:0 10px;color:#6B88A6}
.page-hero h1{position:relative;z-index:2;font-family:var(--font-disp);font-weight:900;font-size:clamp(32px,4.5vw,52px);color:#fff;line-height:1.25}
.page-hero .hero-en{position:relative;z-index:2;font-size:14px;letter-spacing:3px;color:var(--amber);font-weight:500;margin-top:12px}
.page-hero .hero-lam{position:relative;z-index:2;display:flex;align-items:center;justify-content:center;gap:7px;margin-top:22px}
.page-hero .hero-lam .g{width:52px;height:3px;background:rgba(120,170,220,.65);border-radius:2px}
.page-hero .hero-lam .f{width:15px;height:9px;background:var(--orange);border-radius:2px}

/* ===== CTA 横幅 ===== */
.cta-band{background:linear-gradient(120deg,var(--navy-800),var(--navy-700));border-radius:var(--radius);padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-band h3{font-family:var(--font-disp);font-weight:700;font-size:clamp(22px,2.6vw,30px);color:#fff}
.cta-band p{color:#C4D6E9;margin-top:8px;font-weight:300;font-size:15px}
.cta-band .ctas{display:flex;gap:14px;flex-wrap:wrap}

/* ===== 合作流程 ===== */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.process .ps{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 24px;text-align:center;transition:.35s}
.process .ps:hover{transform:translateY(-6px);box-shadow:var(--shadow-sm);border-color:var(--amber)}
.process .ps .pn{font-family:var(--font-disp);font-weight:900;font-size:40px;color:#DDE7F1;line-height:1;margin-bottom:14px;transition:.35s}
.process .ps:hover .pn{color:var(--amber)}
.process .ps h4{font-size:17px;font-weight:600;color:var(--navy-800);margin-bottom:10px}
.process .ps p{font-size:13.5px;color:var(--muted);font-weight:300}

/* ===== 联系我们大卡片 ===== */
.contact-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px 24px;text-align:center;transition:.35s}
.contact-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-sm);border-color:var(--amber)}
.contact-card .ic{width:62px;height:62px;margin:0 auto 18px;border-radius:16px;background:#EAF1F8;display:flex;align-items:center;justify-content:center;color:var(--blue);transition:.35s}
.contact-card:hover .ic{background:var(--orange);color:#fff}
.contact-card .ic svg{width:28px;height:28px}
.contact-card h4{font-size:16px;font-weight:600;color:var(--navy-800);margin-bottom:8px}
.contact-card .cd{font-size:14px;color:var(--muted);word-break:break-all}
.contact-card .cd a{color:var(--navy-700);font-weight:500}
.contact-card .cd a:hover{color:var(--orange)}

@media (max-width:900px){
  .process,.contact-cards{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .process,.contact-cards{grid-template-columns:1fr}
  .cta-band{padding:36px 26px}
}


/* ===== 产品类目栏 ===== */
.cat-bar{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin:0 auto 46px;max-width:900px}
.cat-btn{border:1px solid var(--line);background:#fff;color:var(--navy-700);font-size:14.5px;font-weight:500;padding:11px 24px;border-radius:999px;cursor:pointer;transition:.3s;font-family:var(--font-body)}
.cat-btn small{color:var(--muted);font-weight:400;margin-left:4px;font-size:12px}
.cat-btn:hover{border-color:var(--orange);color:var(--orange)}
.cat-btn.active{background:var(--navy-800);border-color:var(--navy-800);color:#fff}
.cat-btn.active small{color:var(--amber)}

/* ===== 产品列表卡片 ===== */
.plist{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.p-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.35s}
.p-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--amber)}
.p-card .p-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-mid)}
.p-card .p-img img{width:100%;height:100%;object-fit:cover;transition:transform .55s}
.p-card:hover .p-img img{transform:scale(1.06)}
.p-card .p-img::after{content:"";position:absolute;inset:0;background:rgba(8,28,54,0);transition:.35s}
.p-card:hover .p-img::after{background:rgba(8,28,54,.16)}
.p-card .p-img .zoom{position:absolute;right:14px;bottom:14px;z-index:2;width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.94);color:var(--navy-800);display:flex;align-items:center;justify-content:center;opacity:0;transform:translateY(6px);transition:.35s;box-shadow:0 6px 16px rgba(8,28,54,.2)}
.p-card:hover .p-img .zoom{opacity:1;transform:translateY(0)}
.p-card .p-body{padding:20px 22px 24px}
.p-card .p-cat{display:inline-block;font-size:11.5px;color:var(--blue);background:#EAF1F8;border-radius:999px;padding:4px 12px;letter-spacing:.5px;font-weight:500}
.p-card h3{font-size:18px;font-family:var(--font-disp);font-weight:700;color:var(--navy-800);margin-top:12px}
.p-card .p-en{font-size:11.5px;letter-spacing:1.2px;color:var(--muted);margin-top:4px}
.p-card .p-desc{font-size:13.5px;color:#42566B;font-weight:300;margin-top:10px;line-height:1.7}
.p-card .more{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--orange)}
.p-card .more svg{transition:transform .3s}
.p-card:hover .more svg{transform:translateX(4px)}
.p-card{animation:fadeUp .55s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ===== 产品详情页 ===== */
.detail-wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:start}
.detail-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:var(--bg-mid);position:sticky;top:100px}
.detail-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.detail-cat{display:inline-block;font-size:12px;color:var(--blue);background:#EAF1F8;border-radius:999px;padding:5px 14px;letter-spacing:.6px;font-weight:600}
.detail-info h1{font-family:var(--font-disp);font-weight:900;font-size:clamp(26px,3.2vw,38px);color:var(--navy-800);margin:16px 0 6px;line-height:1.3}
.detail-info .d-en{font-size:13px;letter-spacing:2px;color:var(--muted);font-weight:400}
.d-meta{display:grid;grid-template-columns:1fr 1fr;gap:10px 22px;margin-top:22px;padding:18px 22px;background:#F3F7FB;border:1px solid var(--line);border-radius:14px}
.d-meta-row{display:flex;justify-content:space-between;gap:12px;font-size:13.5px}
.d-meta-row .dm-k{color:var(--muted);font-weight:400;white-space:nowrap}
.d-meta-row .dm-v{color:var(--navy-800);font-weight:600;text-align:right}
.detail-info .d-desc{font-size:15.5px;color:#33475C;font-weight:300;margin-top:20px;line-height:1.9}
.detail-features{list-style:none;margin-top:22px;display:grid;gap:10px}
.detail-features li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#33475C;font-weight:300}
.detail-features svg{flex:none;width:18px;height:18px;color:var(--orange);margin-top:3px}
.detail-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.detail-ctas .btn-ghost{border-color:var(--line);color:var(--navy-700);background:#fff}
.detail-ctas .btn-ghost:hover{background:var(--bg-mid)}
.detail-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px;margin-top:52px}
.detail-block h2{font-family:var(--font-disp);font-weight:700;font-size:24px;color:var(--navy-800);margin-bottom:6px}
.detail-block .sub{font-size:12.5px;letter-spacing:1.5px;color:var(--blue);font-weight:600;margin-bottom:22px}
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:12px 16px;text-align:left}
.spec-table th{background:#F3F7FB;color:var(--navy-700);font-weight:600;white-space:nowrap;width:180px}
.spec-table td{color:#33475C;font-weight:300}
.process-note{background:#FFF8EE;border:1px solid #F3D9AC;border-radius:12px;padding:16px 20px;font-size:13.5px;color:#8A5A12;line-height:1.8;margin-bottom:14px}
.process-list{list-style:none;display:grid;gap:8px}
.process-list li{position:relative;padding-left:20px;font-size:14px;color:#33475C;font-weight:300}
.process-list li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--orange)}
.detail-desc-list{list-style:none;counter-reset:desc;display:grid;gap:14px}
.detail-desc-list li{position:relative;padding-left:44px;font-size:15px;color:#33475C;font-weight:300;line-height:1.8;counter-increment:desc}
.detail-desc-list li::before{content:counter(desc);position:absolute;left:0;top:2px;width:30px;height:30px;border-radius:50%;background:#EAF1F8;color:var(--blue);font-size:14px;font-weight:600;display:flex;align-items:center;justify-content:center}
.detail-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.detail-gallery .g-item{margin:0;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#fff;transition:.35s}
.detail-gallery .g-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.detail-gallery .g-item img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;transition:transform .5s}
.detail-gallery .g-item:hover img{transform:scale(1.05)}
.detail-gallery .g-item figcaption{font-size:13px;color:var(--muted);padding:12px 16px;font-weight:300;text-align:center}
.related-title{font-family:var(--font-disp);font-weight:700;font-size:26px;color:var(--navy-800);text-align:center;margin-bottom:40px}

@media (max-width:1024px){
  .plist{grid-template-columns:repeat(2,1fr)}
  .detail-wrap{grid-template-columns:1fr;gap:40px}
  .detail-img{position:static}
  .detail-gallery{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .plist{grid-template-columns:1fr}
  .detail-gallery{grid-template-columns:1fr}
}


/* ===== 业务大类切换 ===== */
.biz-tabs{display:flex;justify-content:center;gap:12px;margin-bottom:40px;flex-wrap:wrap}
.biz-tab{border:1px solid var(--line);background:#fff;border-radius:14px;padding:14px 38px;cursor:pointer;text-align:center;transition:.3s;min-width:200px}
.biz-tab .b-cn{font-family:var(--font-disp);font-weight:700;font-size:17px;color:var(--navy-700);display:block}
.biz-tab .b-en{font-size:11px;letter-spacing:1.5px;color:var(--muted);margin-top:3px;display:block}
.biz-tab:hover{border-color:var(--orange);transform:translateY(-2px)}
.biz-tab.active{background:var(--navy-800);border-color:var(--navy-800);box-shadow:var(--shadow)}
.biz-tab.active .b-cn{color:#fff}
.biz-tab.active .b-en{color:var(--amber)}
.biz-panel{display:none}
.biz-panel.active{display:block}
.panel-head{text-align:center;margin-bottom:30px}
.panel-head .ph-cn{font-family:var(--font-disp);font-weight:700;font-size:22px;color:var(--navy-800)}
.panel-head .ph-en{font-size:12px;letter-spacing:2px;color:var(--blue);margin-top:4px}

/* ===== 机械型号参数表 ===== */
.spec-table.model-table th{background:#0F2A52;color:#fff;font-weight:600;text-align:center;white-space:nowrap}
.spec-table.model-table td{text-align:center;font-size:13.5px}
.spec-table.model-table tr:nth-child(even) td{background:#F7FAFD}


/* ===== 产品中心：左侧文字导航布局 ===== */
.prod-layout{display:grid;grid-template-columns:248px 1fr;gap:44px;align-items:start}
.prod-nav{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;position:sticky;top:96px}
.prod-nav .nav-title{font-family:var(--font-disp);font-weight:700;font-size:17px;color:var(--navy-800)}
.prod-nav .nav-title span{display:block;font-size:10.5px;letter-spacing:2px;color:var(--blue);margin-top:3px;font-weight:600}
.prod-nav .all-link{display:flex;justify-content:space-between;align-items:center;width:100%;text-align:left;border:none;background:none;cursor:pointer;padding:10px 14px;margin-top:12px;border-radius:8px;font-size:14.5px;color:var(--navy-700);font-weight:600;font-family:var(--font-body);transition:.25s}
.prod-nav .all-link em{font-style:normal;font-size:11px;color:var(--muted);font-weight:400}
.prod-nav .all-link:hover{color:var(--orange)}
.prod-nav .all-link.active{background:var(--navy-800);color:#fff}
.prod-nav .all-link.active em{color:var(--amber)}
.prod-nav .group{margin-top:14px}
.prod-nav .group .g-head{display:flex;justify-content:space-between;align-items:center;width:100%;border:none;background:none;cursor:pointer;font-size:12px;font-weight:600;letter-spacing:1px;color:var(--blue);padding:8px 14px;font-family:var(--font-body);transition:.25s}
.prod-nav .group .g-head em{font-style:normal;font-size:11px;color:var(--muted);font-weight:400}
.prod-nav .group .g-head:hover{color:var(--orange)}
.prod-nav .group ul{list-style:none;margin-top:2px}
.prod-nav .group li .prod-item{display:block;width:100%;text-align:left;border:none;background:none;cursor:pointer;padding:9px 14px;border-radius:8px;font-size:13.8px;color:#42566B;font-weight:400;transition:.25s;font-family:var(--font-body)}
.prod-nav .group li .prod-item:hover{color:var(--orange);background:#FFF6EC}
.prod-nav .group li .prod-item.active{color:var(--orange);background:#FFF6EC;font-weight:600}
.prod-main .prod-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:8px}
.prod-main .prod-head h3{font-family:var(--font-disp);font-weight:700;font-size:22px;color:var(--navy-800)}
.prod-main .prod-head .prod-en{font-size:11.5px;letter-spacing:2px;color:var(--blue);font-weight:600}
.prod-main .prod-count{font-size:12.5px;color:var(--muted);margin-bottom:24px}
@media (max-width:1024px){
  .prod-layout{grid-template-columns:1fr;gap:28px}
  .prod-nav{position:static}
}


/* ===== 社交平台图标 ===== */
.social-wrap{margin-top:26px}
.social-title{font-size:13px;letter-spacing:.12em;color:#5b6f8b;margin-bottom:12px;font-weight:600}
.social-title span{color:#a8b8cc;margin-left:6px;font-weight:400;font-size:11px}
.social-row{display:flex;gap:10px;flex-wrap:wrap}
.social-item{width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(120,140,165,.35);color:#7d93ad;transition:all .25s ease;text-decoration:none}
.social-item svg{width:17px;height:17px}
.social-item.off{opacity:.35;cursor:default;pointer-events:none}
.social-item.on:hover{transform:translateY(-2px);color:#fff;border-color:transparent}
.social-item.on[data-social-key="facebook"]:hover{background:#1877F2}
.social-item.on[data-social-key="twitter"]:hover{background:#111}
.social-item.on[data-social-key="instagram"]:hover{background:#E4405F}
.social-item.on[data-social-key="linkedin"]:hover{background:#0A66C2}
.social-item.on[data-social-key="telegram"]:hover{background:#229ED9}
.social-item.on[data-social-key="youtube"]:hover{background:#FF0000}
/* 联系卡（深蓝底）社交图标放大亮化 */
.contact-info .social-title{color:#9FBBD7;margin-bottom:16px}
.contact-info .social-title span{color:#7d97b8}
.contact-info .social-row{gap:12px}
.contact-info .social-item{width:48px;height:48px;border-color:rgba(255,255,255,.28);color:#c3d6ea;background:rgba(255,255,255,.06)}
.contact-info .social-item svg{width:20px;height:20px}
.contact-info .social-item.off{opacity:.92}
.contact-info .social-item.on:hover{transform:translateY(-3px)}
/* 页脚（深色背景）适配 */
.footer-col .social-wrap{margin-top:18px}
.footer-col .social-title{color:#a8b8cc}
.footer-col .social-item{border-color:rgba(255,255,255,.18);color:#9db2cc}
.footer-col .social-item.on:hover{color:#fff}

/* ===== 中文版导航紧凑（桌面端）：隐藏英文小字、收紧间距 ===== */
@media (min-width: 992px){
  html[lang="zh-CN"] .site-header .nav-links a .en{display:none}
  html[lang="zh-CN"] .site-header .brand-name .en{display:none}
  html[lang="en"] .site-header .brand-name .cn,html[lang="en"] .site-header .brand-name br{display:none}
  html[lang="en"] .footer-brand .brand-name .cn,html[lang="en"] .footer-brand .brand-name br{display:none}
  html[lang="zh-CN"] .site-header .nav-links{gap:18px;padding:0 14px}
  html[lang="zh-CN"] .site-header .lang-switch-item{padding:5px 9px;font-size:11.5px}
}