*{box-sizing:border-box}
:root{--blue:#0a74bd;--deep:#22394f;--orange:#ff9300;--soft:#f5f7f9;--text:#202b36;--muted:#657483;--line:#e4ebf1}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,"Microsoft YaHei",sans-serif;color:var(--text);background:#fff;font-size:15px;line-height:1.78}
img{max-width:100%;display:block}a{text-decoration:none;color:inherit}
.wrap{width:min(1180px,calc(100% - 32px));margin:auto}
.header{border-top:1px solid #d8d8d8;background:#fff}.nav{min-height:96px;display:grid;grid-template-columns:150px 1fr;align-items:center;gap:24px}.logo{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--blue)}.logo img{width:82px;height:82px;object-fit:contain}.logo strong{font-size:18px;line-height:1.1}.menu{display:flex;justify-content:center;gap:38px;font-size:14px;font-weight:700}.menu a{padding:31px 0 12px;border-bottom:2px solid transparent}.menu a:hover,.menu a.active{color:var(--orange);border-color:#333}
.banner{padding:0 0 42px}.banner-frame{position:relative;background:#f7f7f7;overflow:hidden}.banner-frame img{width:100%;height:430px;object-fit:cover}.banner-copy{position:absolute;left:8%;top:50%;max-width:430px;transform:translateY(-50%);background:rgba(255,255,255,.82);padding:30px;border-left:5px solid var(--orange)}.banner-copy h1{margin:0 0 12px;font-size:38px;line-height:1.18}.banner-copy p{margin:0;color:var(--muted)}.dots{display:flex;justify-content:center;gap:8px;margin-top:14px}.dots span{width:24px;height:5px;background:#d8dde3}.dots span:first-child{background:var(--blue)}
.section{padding:58px 0}.section.grey{background:#eeede5}.title{text-align:center;margin:0 0 30px;color:var(--orange);font-size:26px}.title.left{text-align:left}.title:after{content:"";display:block;width:96px;height:1px;background:#999;margin:12px auto 0}.title.left:after{margin-left:0}
.service-row{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;text-align:center}.round-icon{width:62px;height:62px;margin:0 auto 15px;border-radius:50%;display:grid;place-items:center;background:#084b9a;color:#fff;font-weight:900;font-size:20px}.service-row h2{font-size:18px;margin:0 0 8px}.service-row p{color:var(--muted);margin:0}
.about-band{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}.about-band p{color:#566777}.about-logo{display:grid;place-items:center}.about-logo img{width:220px}
.news-home{display:grid;grid-template-columns:repeat(2,1fr);gap:34px}.news-list{display:grid;gap:14px}.news-line{border-bottom:1px dashed #b8c3cd;padding-bottom:12px}.news-line b{display:block;font-size:15px}.news-line span{color:var(--muted);font-size:13px}
.page-hero{padding:42px 0 0}.page-hero img{width:100%;height:330px;object-fit:cover}.page-title{padding:34px 0 10px;text-align:center;color:var(--orange);font-size:26px}
.content{max-width:960px;margin:auto;color:#4f6070}.content p{text-indent:2em}.history{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:28px}.history article{background:#fff;border:1px solid var(--line);padding:22px}.history strong{color:var(--orange);font-size:24px}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.product-card{border:1px solid var(--line);padding:24px;background:#fff;min-height:180px}.product-card em{font-style:normal;color:var(--orange);font-weight:900}.product-card h2{font-size:19px;margin:8px 0}
.download-panel{display:grid;grid-template-columns:.95fr 1.05fr;gap:34px;align-items:center}.download-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}.btn{display:inline-block;padding:13px 26px;background:var(--orange);color:#fff;font-weight:900}.btn.blue{background:var(--blue)}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px}.contact-box{background:#fff;border:1px solid var(--line);padding:24px}.form label{display:block;margin:0 0 14px;font-weight:700}.form input,.form select,.form textarea{width:100%;margin-top:7px;border:1px solid #b9c6d2;padding:11px;font:inherit}.form textarea{min-height:100px}.form button{border:0;cursor:pointer}
.footer{margin-top:40px;background:var(--deep);color:#fff;position:relative;padding:80px 0 34px;overflow:hidden}.footer:before{content:"";position:absolute;left:-5%;right:-5%;top:-52px;height:100px;background:#fff;border-radius:0 0 50% 50%}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;position:relative}.footer-menu{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:18px}.footer small{display:block;text-align:center;margin-top:34px;color:#cbd6df}
@media(max-width:900px){.nav{grid-template-columns:1fr}.logo{justify-content:center}.menu{gap:16px;flex-wrap:wrap}.banner-frame img{height:390px}.banner-copy{position:static;transform:none;max-width:none;margin:0;background:#fff}.service-row,.about-band,.news-home,.history,.product-grid,.download-panel,.contact-grid,.footer-grid{grid-template-columns:1fr}.section{padding:42px 0}.page-hero img{height:260px}}
@media(max-width:520px){.menu{font-size:13px}.banner-copy h1{font-size:28px}.logo img{width:68px;height:68px}.history,.product-grid{gap:12px}.product-card{padding:18px}.footer-menu{gap:14px}}