*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#333;line-height:1.7;background:#fff;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.mx-wrap{max-width:1200px;margin:0 auto;padding:0 20px}

.mx-hdr{position:sticky;top:0;background:#fff;border-bottom:1px solid #e5e5e5;z-index:100}
.mx-hdr-in{display:flex;align-items:center;justify-content:space-between;height:72px}
.mx-logo{display:flex;align-items:center;gap:10px;font-weight:700;color:#1a5f6e;font-size:17px}
.mx-logo img{height:40px;width:auto}
.mx-nav{display:flex;gap:28px}
.mx-nav-link{font-size:15px;padding:8px 2px;color:#444;position:relative}
.mx-nav-link:hover{color:#1a5f6e}
.mx-nav-link.is-on{color:#1a5f6e;font-weight:600}
.mx-nav-link.is-on:after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;background:#e87722;border-radius:2px}
.mx-burger{display:none;width:30px;height:24px;background:none;border:none;cursor:pointer;position:relative}
.mx-burger:before,.mx-burger:after,.mx-burger{content:"";position:absolute;left:0;width:100%;height:3px;background:#1a5f6e;border-radius:2px}
.mx-burger:before{top:0}
.mx-burger:after{bottom:0}

.mx-hero{background:linear-gradient(135deg,#f4f8f9 0%,#e8f0f2 100%);padding:60px 0}
.mx-hero .mx-wrap{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.mx-hero-txt h1{font-size:36px;color:#1a5f6e;line-height:1.3;margin-bottom:20px;font-weight:700}
.mx-hero-txt p{font-size:16px;color:#555;margin-bottom:30px}
.mx-hero-btn{display:flex;gap:14px}
.mx-hero-img img{border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,.1)}

.mx-btn{display:inline-block;padding:12px 30px;border-radius:4px;font-size:15px;font-weight:600;transition:.2s}
.mx-btn-pri{background:#e87722;color:#fff}
.mx-btn-pri:hover{background:#d06a1c}
.mx-btn-ghost{background:transparent;color:#1a5f6e;border:2px solid #1a5f6e}
.mx-btn-ghost:hover{background:#1a5f6e;color:#fff}

.mx-sec{padding:70px 0}
.mx-sec-alt{background:#f9f9f9}
.mx-sec-hd{text-align:center;margin-bottom:45px}
.mx-sec-tag{display:inline-block;font-size:12px;letter-spacing:3px;color:#e87722;font-weight:700;margin-bottom:8px}
.mx-sec-hd h2{font-size:30px;color:#22px;margin-bottom:10px}
.mx-sec-hd p{color:#777}

.mx-svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.mx-svc-card{background:#fff;border:1px solid #eaeaea;border-radius:6px;padding:28px 22px;transition:.2s}
.mx-svc-card:hover{border-color:#1a5f6e;transform:translateY(-3px);box-shadow:0 8px 20px rgba(26,95,110,.08)}
.mx-svc-num{font-size:13px;color:#ccc;font-weight:700;margin-bottom:10px}
.mx-svc-card h3{font-size:18px;color:#1a5f6e;margin-bottom:10px}
.mx-svc-card p{font-size:14px;color:#666;margin-bottom:12px}
.mx-svc-spec{font-size:12px;color:#999;border-top:1px dashed #eee;padding-top:10px}

.mx-case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mx-case{position:relative;display:block;border-radius:6px;overflow:hidden;height:240px}
.mx-case img{width:100%;height:100%;object-fit:cover;transition:.3s}
.mx-case:hover img{transform:scale(1.05)}
.mx-case-mask{position:absolute;inset:0;background:linear-gradient(to top,rgba(26,95,110,.9),transparent 60%);color:#fff;padding:20px;display:flex;flex-direction:column;justify-content:flex-end}
.mx-case-mask span{font-size:12px;opacity:.85}
.mx-case-mask h3{font-size:17px;margin-top:4px}

.mx-news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.mx-news-item{display:block;padding:22px;background:#fff;border:1px solid #eaeaea;border-radius:6px;transition:.2s}
.mx-news-item:hover{border-color:#e87722}
.mx-news-date{font-size:12px;color:#e87722;font-weight:600}
.mx-news-item h3{font-size:16px;color:#222;margin:8px 0}
.mx-news-item p{font-size:13px;color:#777}

.mx-cta{background:#1a5f6e;color:#fff;text-align:center;padding:60px 0}
.mx-cta h2{font-size:28px;margin-bottom:10px}
.mx-cta p{opacity:.85;margin-bottom:25px}
.mx-cta .mx-btn-pri{background:#e87722}

.mx-ftr{background:#222;color:#bbb;padding:50px 0 0}
.mx-ftr-in{display:grid;grid-template-columns:2fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.mx-ftr-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.mx-ftr-col p,.mx-ftr-col a{font-size:13px;color:#999;display:block;margin-bottom:6px}
.mx-ftr-bar{border-top:1px solid #333;padding:18px 0;text-align:center;font-size:12px;color:#777}

.mx-page-hd{background:#1a5f6e;color:#fff;padding:50px 0}
.mx-page-hd h1{font-size:30px;margin-bottom:8px}
.mx-page-hd p{opacity:.85}

.mx-svc-list{display:grid;grid-template-columns:1fr;gap:18px}
.mx-svc-row{display:grid;grid-template-columns:60px 1fr;gap:20px;padding:24px;background:#fff;border:1px solid #eaeaea;border-radius:6px}
.mx-svc-row-num{font-size:24px;font-weight:700;color:#e87722}
.mx-svc-row h3{font-size:18px;color:#1a5f6e;margin-bottom:8px}
.mx-svc-row p{color:#555;margin-bottom:8px}

.mx-case-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.mx-case-card{background:#fff;border:1px solid #eaeaea;border-radius:6px;overflow:hidden}
.mx-case-card img{height:220px;width:100%;object-fit:cover}
.mx-case-card-txt{padding:20px}
.mx-case-card-txt span{font-size:12px;color:#e87722;font-weight:600}
.mx-case-card-txt h3{font-size:17px;color:#222;margin:6px 0}
.mx-case-card-txt p{font-size:13px;color:#777}

.mx-about{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:start}
.mx-about img{border-radius:6px}
.mx-about h2{font-size:24px;color:#1a5f6e;margin-bottom:15px}
.mx-about h3{font-size:17px;color:#222;margin:18px 0 10px}
.mx-about p{color:#555;margin-bottom:12px}
.mx-about ul{padding-left:20px;color:#555}
.mx-about li{margin-bottom:8px}

.mx-contact{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
.mx-contact-info h2,.mx-contact-form h2{font-size:22px;color:#1a5f6e;margin-bottom:18px}
.mx-contact-info p{margin-bottom:10px;color:#555}
.mx-contact-form{background:#f9f9f9;padding:30px;border-radius:6px}
.mx-form-row{margin-bottom:14px}
.mx-form-row input,.mx-form-row select,.mx-form-row textarea{width:100%;padding:12px;border:1px solid #ddd;border-radius:4px;font-size:14px;font-family:inherit;background:#fff}
.mx-form-row input:focus,.mx-form-row select:focus,.mx-form-row textarea:focus{outline:none;border-color:#1a5f6e}

.mx-news-list{display:grid;gap:0}
.mx-news-row{display:grid;grid-template-columns:80px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid #eee;align-items:start}
.mx-news-row-date{text-align:center;border-right:2px solid #e87722;padding-right:15px}
.mx-news-row-date strong{display:block;font-size:26px;color:#1a5f6e}
.mx-news-row-date span{font-size:12px;color:#999}
.mx-news-cat{display:inline-block;font-size:12px;color:#e87722;font-weight:600;margin-bottom:6px}
.mx-news-row h3{font-size:18px;color:#222;margin-bottom:6px}
.mx-news-row p{font-size:14px;color:#777}

.mx-article{max-width:800px;margin:0 auto}
.mx-article-img{width:100%;border-radius:6px;margin-bottom:30px}
.mx-article-txt p{margin-bottom:18px;color:#444;font-size:15px;line-height:1.9}
.mx-article-back{margin-top:40px;padding-top:20px;border-top:1px solid #eee}
.mx-article-back a{color:#1a5f6e;font-weight:600}
.mx-news-hd p{font-size:13px;opacity:.7;margin-top:8px}

.mx-nf{text-align:center;padding:120px 0}
.mx-nf h1{font-size:100px;color:#e87722;line-height:1}
.mx-nf p{color:#777;margin:20px 0 30px}

@media (max-width:768px){
.mx-hero .mx-wrap,.mx-about,.mx-contact,.mx-contact{grid-template-columns:1fr}
.mx-svc-grid{grid-template-columns:repeat(2,1fr)}
.mx-case-grid,.mx-news-grid,.mx-case-list{grid-template-columns:1fr}
.mx-ftr-in{grid-template-columns:1fr;gap:25px}
.mx-hero-txt h1{font-size:26px}
.mx-sec{padding:45px 0}
.mx-nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:15px 20px;border-bottom:1px solid #eee;gap:10px}
.mx-nav.is-open{display:flex}
.mx-burger{display:block}
.mx-logo span{font-size:14px}
.mx-logo img{height:34px}
.mx-news-row{grid-template-columns:60px 1fr;gap:15px}
.mx-news-row-date strong{font-size:20px}
}