:root{--blue:#123d73;--deep:#08284d;--red:#df2028;--green:#0a7e79;--gold:#d99a16;--ink:#1e2933;--muted:#66727d;--line:#e1e6ea;--soft:#f4f6f8;--white:#fff;--max:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font:14px/1.75 "Microsoft YaHei","PingFang SC",Arial,sans-serif}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}.wrap{width:min(var(--max),calc(100% - 32px));margin:auto}.topbar{background:var(--deep);color:#c7d5e2;font-size:12px}.topbar .wrap{height:38px;display:flex;align-items:center;justify-content:space-between}.header{height:92px;background:#fff}.head{height:100%;display:flex;align-items:center}.brand{display:flex;align-items:center;gap:14px}.brand img{width:132px;height:auto}.brand-text b{display:block;font-size:21px;color:var(--deep);letter-spacing:1px}.brand-text small{color:#8b949c}.head-slogan{margin-left:28px;padding-left:27px;border-left:1px solid #ccd2d7;color:var(--blue);font-weight:bold}.head-slogan span{display:block;color:var(--red)}.phone{margin-left:auto;text-align:right}.phone small{display:block;color:#777}.phone b{font-size:23px;color:var(--blue)}.nav{background:var(--blue);position:sticky;top:0;z-index:50;box-shadow:0 5px 18px #071f3b20}.nav-inner{height:56px;display:flex;align-items:center}.nav a{color:#fff;padding:17px 25px;border-right:1px solid #ffffff18;transition:.2s}.nav a:hover,.nav a.active{background:#071d39}.nav .inquiry{margin-left:auto;background:var(--red);font-weight:bold}.menu-btn{display:none;margin-left:auto;background:none;border:0;color:#fff;font-size:25px}.hero{height:530px;background:linear-gradient(90deg,#e7ebee 0 45%,#f7f8f9 45%);overflow:hidden}.hero-grid{height:100%;display:grid;grid-template-columns:52% 48%;align-items:center}.hero-photo{height:100%;position:relative;clip-path:polygon(0 0,89% 0,100% 100%,0 100%)}.hero-photo img{width:100%;height:100%;object-fit:cover}.hero-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 60%,#123d7338)}.hero-copy{padding:0 0 0 50px}.eyebrow{color:var(--red);font-weight:bold;letter-spacing:2px}.hero h1{font-size:42px;line-height:1.27;margin:12px 0;color:#172634}.hero h1 em{font-style:normal;color:var(--gold)}.hero h2{display:inline-block;font-size:25px;color:var(--blue);border-bottom:3px solid #222;margin:0 0 13px;padding-bottom:7px}.hero p{font-size:16px;color:#5e6972}.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--red);color:#fff;padding:12px 24px;font-weight:bold;border:0;cursor:pointer}.btn.blue{background:var(--blue)}.trust{border-bottom:1px solid var(--line)}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}.trust-item{padding:23px;text-align:center;border-right:1px solid var(--line)}.trust-item:last-child{border:0}.trust-item b{display:block;font-size:23px;color:var(--blue)}.trust-item span{font-size:12px;color:var(--muted)}.section{padding:72px 0}.soft{background:var(--soft)}.dark{background:var(--deep);color:#fff}.section-head{text-align:center;margin-bottom:38px}.section-head small{color:var(--red);font-weight:bold;letter-spacing:2px}.section-head h2{font-size:31px;color:var(--blue);margin:5px 0}.dark .section-head h2{color:#fff}.section-head p{color:#8a949c;margin:0}.product-layout{display:grid;grid-template-columns:230px 1fr;gap:22px}.side-title{background:var(--blue);color:#fff;padding:20px}.side-title b{display:block;font-size:20px}.side-nav{border:1px solid var(--line);background:#fff}.side-nav a{display:block;padding:12px 17px;border-bottom:1px solid var(--line)}.side-nav a:hover{color:var(--red);padding-left:22px}.products{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.product-card{border:1px solid var(--line);background:#fff;transition:.25s}.product-card:hover{transform:translateY(-5px);box-shadow:0 14px 35px #123d731b}.product-card img{width:100%;height:235px;object-fit:cover}.product-card .info{padding:13px;text-align:center}.product-card b{display:block}.product-card small{color:#999}.standard-grid,.factory-grid,.about-grid,.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.standard-grid img,.factory-grid img{width:100%;height:430px;object-fit:cover}.copy h2{font-size:32px;line-height:1.4;color:var(--blue)}.copy p{color:var(--muted)}.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin:23px 0}.check{background:#fff;border-left:4px solid var(--blue);padding:13px}.check b{display:block;color:var(--blue)}.advantages{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}.adv{border:1px solid #ffffff2b;background:#ffffff08;padding:27px 20px;text-align:center}.adv i{display:grid;place-items:center;width:55px;height:55px;border-radius:50%;margin:auto;background:var(--red);font-style:normal;font-size:22px}.adv h3{font-size:16px}.adv p{color:#b0c0ce;font-size:12px}.case-grid,.cert-grid,.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.case-card,.cert-card{background:#fff;border:1px solid var(--line)}.case-card img{width:100%;height:230px;object-fit:cover}.case-card .body,.cert-card .body{padding:19px}.case-card small{color:var(--red);font-weight:bold}.case-card h3{color:var(--blue);margin:5px 0}.case-card p{color:var(--muted);font-size:12px}.cert-card img{width:100%;height:300px;object-fit:contain;background:#f7f7f7;padding:12px}.process{display:grid;grid-template-columns:repeat(6,1fr);border:1px solid var(--line)}.step{text-align:center;padding:25px 10px;border-right:1px solid var(--line)}.step:last-child{border:0}.step b{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;margin:auto;background:var(--blue);color:#fff}.step h3{font-size:14px}.step p{font-size:11px;color:var(--muted)}.cta{background:var(--blue);color:#fff;padding:50px 0}.cta .wrap{display:flex;align-items:center}.cta h2{margin:0;font-size:28px}.cta p{color:#c7d7e5;margin:5px 0}.cta .btn{margin-left:auto}.page-hero{height:300px;background:var(--deep);color:#fff;position:relative;overflow:hidden}.page-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.32}.page-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#071f3ce8,transparent)}.page-hero .wrap{height:100%;position:relative;z-index:2;display:flex;flex-direction:column;justify-content:center}.page-hero h1{font-size:38px;margin:0}.page-hero p{color:#d4e0ea}.breadcrumb{font-size:12px;color:#bdcad5;margin-bottom:12px}.about-copy p{color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:35px}.stat{background:var(--soft);padding:25px;text-align:center}.stat b{display:block;font-size:30px;color:var(--red)}.gallery{display:grid;grid-template-columns:2fr 1fr;grid-template-rows:280px 280px;gap:15px}.gallery img{width:100%;height:100%;object-fit:cover}.gallery img:first-child{grid-row:span 2}.contact-list div{padding:15px 0;border-bottom:1px solid var(--line)}.contact-list b{display:block;color:var(--blue)}.form{display:grid;grid-template-columns:1fr 1fr;gap:12px;background:#fff;padding:25px;box-shadow:0 10px 35px #123d7310}.form input,.form select,.form textarea{padding:13px;border:1px solid #d7dde1;font:inherit}.form textarea,.form button{grid-column:1/-1}.form textarea{height:110px;resize:vertical}.map{height:300px;background:#e8ecee;display:grid;place-items:center;color:#73808a;border:1px solid var(--line)}.footer{background:#071c35;color:#9fb0bf;padding:50px 0 25px}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:38px}.footer h3,.footer b{color:#fff}.footer a{display:block;padding:3px 0}.copyright{border-top:1px solid #ffffff18;margin-top:30px;padding-top:20px;display:flex;justify-content:space-between;font-size:12px}.float{position:fixed;right:14px;top:48%;z-index:30;background:#fff;box-shadow:0 5px 24px #0003}.float a{display:block;padding:11px;text-align:center;border-bottom:1px solid var(--line);font-size:11px;color:var(--blue)}.float a:last-child{background:var(--red);color:#fff}.mobilebar{display:none}.reveal{opacity:0;transform:translateY(22px);transition:.6s}.reveal.on{opacity:1;transform:none}
@media(max-width:900px){.head-slogan,.phone{display:none}.brand-text{display:none}.header{height:70px}.brand img{width:118px}.nav-inner{height:auto;min-height:54px;flex-wrap:wrap}.menu-btn{display:block}.nav a{display:none;width:100%;border-bottom:1px solid #ffffff16}.nav.open a{display:block}.nav .inquiry{margin-left:0}.hero{height:auto}.hero-grid{grid-template-columns:1fr}.hero-photo{height:370px;clip-path:none}.hero-copy{padding:40px 20px 55px}.trust-grid{grid-template-columns:1fr 1fr}.products{grid-template-columns:repeat(2,1fr)}.product-layout{grid-template-columns:1fr}.side-nav{display:none}.advantages{grid-template-columns:1fr 1fr}.case-grid,.cert-grid,.news-grid{grid-template-columns:1fr 1fr}.standard-grid,.factory-grid,.about-grid,.contact-grid{grid-template-columns:1fr}.process{grid-template-columns:repeat(3,1fr)}.gallery{grid-template-columns:1fr 1fr}.stats{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.topbar{display:none}.hero h1{font-size:32px}.hero-photo{height:300px}.trust-grid,.products,.advantages,.case-grid,.cert-grid,.news-grid,.check-grid,.stats,.footer-grid{grid-template-columns:1fr}.trust-item{border-right:0;border-bottom:1px solid var(--line)}.product-card img{height:300px}.process{grid-template-columns:1fr 1fr}.gallery{display:block}.gallery img{height:250px;margin-bottom:12px}.form{grid-template-columns:1fr}.form textarea,.form button{grid-column:auto}.cta .wrap{display:block}.cta .btn{margin:20px 0 0}.copyright{display:block}.float{display:none}.mobilebar{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;left:0;right:0;bottom:0;z-index:60}.mobilebar a{padding:12px;text-align:center;background:var(--blue);color:#fff}.mobilebar a:nth-child(2){background:var(--red)}body{padding-bottom:46px}}

/* latest product refresh */
.hero-slider{position:relative;overflow:hidden;background:#071c35}.hero-slides{position:relative;aspect-ratio:1920/500;max-height:500px;min-height:300px}.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .65s ease;pointer-events:none}.hero-slide.active{opacity:1;pointer-events:auto}.hero-slide img{width:100%;height:100%;object-fit:cover}.hero-arrow{position:absolute;top:50%;z-index:5;transform:translateY(-50%);width:46px;height:58px;border:0;background:#071c356e;color:#fff;font-size:36px;cursor:pointer;transition:.2s}.hero-arrow:hover{background:#df2028}.hero-arrow.prev{left:22px}.hero-arrow.next{right:22px}.hero-dots{position:absolute;z-index:5;left:50%;bottom:18px;display:flex;gap:9px;transform:translateX(-50%)}.hero-dots button{width:28px;height:4px;padding:0;border:0;background:#ffffff78;cursor:pointer}.hero-dots button.active{background:#df2028}.category-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}.category-card{position:relative;overflow:hidden;min-height:410px;background:#fff;border:1px solid var(--line);box-shadow:0 12px 36px #123d7310;transition:.3s}.category-card:nth-child(-n+2){grid-column:span 3}.category-card:nth-child(n+3){grid-column:span 2}.category-card:hover{transform:translateY(-6px);box-shadow:0 18px 42px #123d7323}.category-card img{width:100%;height:265px;object-fit:contain;background:#f6f7f8}.category-card div{padding:20px;position:relative}.category-card span{position:absolute;right:18px;top:15px;color:#dbe2e8;font-size:34px;font-weight:bold}.category-card h3{position:relative;margin:0;color:var(--blue);font-size:20px}.category-card p{min-height:45px;color:var(--muted);font-size:12px}.category-card b{color:var(--red);font-size:12px}.product-tabs{position:sticky;top:56px;z-index:20;display:grid;grid-template-columns:repeat(5,1fr);margin-bottom:50px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 25px #123d7312}.product-tabs a{padding:15px;text-align:center;color:var(--blue);font-weight:bold;border-right:1px solid var(--line)}.product-tabs a:last-child{border:0}.product-tabs a:hover{background:var(--blue);color:#fff}.product-series{scroll-margin-top:135px;padding:0 0 65px;margin-bottom:60px;border-bottom:1px solid var(--line)}.product-series:last-child{margin-bottom:0;border:0}.series-head{display:flex;align-items:center;gap:18px;margin-bottom:28px}.series-head>span{display:grid;place-items:center;width:64px;height:64px;background:var(--blue);color:#fff;font-size:24px;font-weight:bold}.series-head h2{margin:0;color:var(--blue);font-size:28px}.series-head p{margin:2px 0 0;color:var(--muted)}.product-showcase{grid-template-columns:repeat(5,1fr)!important}.product-showcase .product-card img{height:290px;object-fit:contain;background:#f7f8f9;padding:8px}
@media(max-width:900px){.hero-slides{aspect-ratio:1920/650;min-height:260px}.category-card:nth-child(n){grid-column:span 3}.product-showcase{grid-template-columns:repeat(3,1fr)!important}.product-tabs{top:54px;overflow-x:auto;display:flex}.product-tabs a{min-width:130px}.hero-arrow{display:none}}
@media(max-width:560px){.hero-slides{height:210px;min-height:210px;aspect-ratio:auto}.hero-slide img{object-position:center}.hero-dots{bottom:10px}.category-grid{grid-template-columns:1fr}.category-card:nth-child(n){grid-column:auto;min-height:0}.category-card img{height:300px}.product-showcase{grid-template-columns:1fr!important}.product-showcase .product-card img{height:390px}.series-head>span{width:52px;height:52px}.series-head h2{font-size:23px}}

/* AI homepage banner */
.ai-carousel .hero-slides{height:520px;max-height:none;min-height:0;aspect-ratio:auto}.ai-carousel .hero-slide{position:absolute;height:100%;overflow:hidden;background:var(--deep);color:#fff}.ai-hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.ai-hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,#061c38e8 0%,#0a326fb5 34%,transparent 63%)}.ai-hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}.ai-hero-content small{color:#7bc8ff;font-weight:bold;letter-spacing:2px}.ai-hero-content h1{max-width:650px;margin:12px 0 14px;font-size:46px;line-height:1.25}.ai-hero-content h1 em{color:#ffd052;font-style:normal}.ai-hero-content p{max-width:610px;margin:0 0 25px;color:#d7e6f2;font-size:16px}.ai-hero-content .btn{margin-right:22px}.ai-hero-link{color:#fff;font-weight:bold}
@media(max-width:900px){.ai-carousel .hero-slides{height:440px}.ai-hero-shade{background:linear-gradient(90deg,#061c38e8 0%,#0a326fa8 55%,#061c3850)}.ai-hero-content h1{font-size:38px;max-width:530px}.ai-hero-content p{max-width:500px}}
@media(max-width:560px){.ai-carousel .hero-slides{height:430px}.ai-hero>img{object-position:68% center}.ai-hero-shade{background:linear-gradient(90deg,#061c38f2 0%,#082b5ac9 70%,#061c3855)}.ai-hero-content{justify-content:flex-end;padding-bottom:36px}.ai-hero-content small{font-size:10px}.ai-hero-content h1{font-size:29px;margin:8px 0 10px}.ai-hero-content p{font-size:13px;line-height:1.65;margin-bottom:18px;max-width:92%}.ai-hero-content .btn{padding:10px 14px;margin-right:12px}.ai-hero-link{font-size:12px}.ai-carousel .hero-arrow{display:none}.ai-carousel .hero-dots{bottom:12px}}

/* product detail */
.product-card{color:inherit}.product-card .info em{display:block;margin-top:7px;color:var(--red);font-style:normal;font-size:12px}.detail-hero{padding:55px 0;background:linear-gradient(120deg,var(--deep),var(--blue));color:#fff}.detail-hero small{color:#7fc9ff;letter-spacing:2px}.detail-hero h1{margin:5px 0;font-size:38px}.detail-hero p{margin:0;color:#c7d7e5}.detail-hero .breadcrumb a:hover{color:#fff}.product-detail{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(320px,.7fr);gap:50px;align-items:start}.detail-gallery{min-width:0}.detail-main{position:relative;height:650px;overflow:hidden;background:#f6f7f8;border:1px solid var(--line)}.detail-main img{position:absolute;inset:16px;width:calc(100% - 32px);height:calc(100% - 32px);max-width:none;object-fit:contain}.detail-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}.detail-thumbs button{min-width:0;padding:6px;overflow:hidden;background:#fff;border:1px solid var(--line);cursor:pointer}.detail-thumbs button.active{border:2px solid var(--red)}.detail-thumbs img{width:100%;height:105px;object-fit:contain;background:#f7f8f9}.detail-info{position:sticky;top:90px;padding:34px;background:#fff;border-top:5px solid var(--blue);box-shadow:0 15px 45px #123d7314}.detail-info>small{color:var(--red);letter-spacing:2px;font-weight:bold}.detail-info h2{margin:8px 0 24px;color:var(--blue);font-size:28px;line-height:1.4}.detail-meta{margin-bottom:22px;border-top:1px solid var(--line)}.detail-meta div{padding:13px 0;border-bottom:1px solid var(--line)}.detail-meta b{display:block;color:var(--blue)}.detail-meta span{color:var(--muted)}.detail-info>p{color:var(--muted)}.back-products{display:block;margin-top:18px;color:var(--blue);font-weight:bold}
@media(max-width:900px){.product-detail{grid-template-columns:1fr}.detail-info{position:static}.detail-main{height:560px}.detail-thumbs{grid-template-columns:repeat(4,1fr)}}
@media(max-width:560px){body{font-size:13px}.header{height:56px}.head{justify-content:flex-start}.brand{gap:0}.brand img{width:92px}.nav-inner{min-height:46px}.menu-btn{font-size:23px;padding:5px 0}.nav a{padding:12px 16px}.section{padding:40px 0}.page-hero{height:190px}.page-hero h1{font-size:28px}.page-hero p{margin:5px 0}.detail-hero{padding:24px 0}.detail-hero .breadcrumb{margin-bottom:6px}.detail-hero small{display:none}.detail-hero h1{font-size:24px;line-height:1.35}.detail-section{padding:22px 0 34px}.product-detail{gap:22px}.detail-main{height:330px}.detail-main img{inset:8px;width:calc(100% - 16px);height:calc(100% - 16px)}.detail-thumbs{grid-template-columns:repeat(4,1fr);gap:7px;margin-top:8px}.detail-thumbs button{padding:3px}.detail-thumbs img{height:76px}.detail-info{padding:20px;border-top-width:4px}.detail-info>small{display:none}.detail-info h2{font-size:22px;margin:0 0 15px}.detail-meta div{padding:10px 0}.detail-info .btn{width:100%;padding:11px 12px}.product-series{padding-bottom:34px;margin-bottom:36px}.series-head{gap:10px;margin-bottom:18px}.series-head>span{width:44px;height:44px;font-size:18px}.series-head h2{font-size:21px}.series-head p{font-size:11px}.product-showcase{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:10px}.product-showcase .product-card img{height:205px;padding:4px}.product-card .info{padding:10px 6px}.product-card .info b{font-size:12px;line-height:1.5}.product-card .info small,.product-card .info em{font-size:10px}.category-card img{height:220px}.cta{padding:34px 0}.cta h2{font-size:22px}.footer{padding-top:35px}.mobilebar a{padding:10px 4px}}