:root{--ink:#102336;--muted:#617183;--blue:#1689d3;--cyan:#18b5c9;--line:#dbe6ee;--soft:#f4f8fb;--dark:#0a1e31;--orange:#ffb13b}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;background:#fff;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.site-shell{min-height:100vh}.topbar{background:var(--dark);color:#d9edf8;font-size:13px}.topbar-inner,.nav-inner,.wrap{width:min(1180px,calc(100% - 40px));margin:auto}.topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between}.topbar a{color:#fff}.site-nav{height:76px;background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:10}.nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-weight:700;color:var(--ink);font-size:19px}.brand img{width:42px;height:42px;object-fit:contain}.brand small{display:block;color:var(--muted);font-size:10px;font-weight:500;letter-spacing:1px}.nav-links{display:flex;align-items:center;gap:30px;font-size:14px;font-weight:600}.nav-links a{padding:27px 0;border-bottom:2px solid transparent}.nav-links a:hover,.nav-links a.active{color:var(--blue);border-color:var(--blue)}.nav-cta{background:var(--blue);color:#fff!important;padding:9px 16px!important;border:0!important;border-radius:3px}.menu-toggle{display:none;background:none;border:1px solid var(--line);padding:8px 10px;color:var(--ink)}.hero{background:linear-gradient(100deg,#0b2237 0%,#123b58 54%,#087f9e 100%);color:#fff;overflow:hidden}.hero-grid{width:min(1180px,calc(100% - 40px));margin:auto;min-height:480px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:40px}.eyebrow{color:#78dcf2;font-size:13px;letter-spacing:2px;font-weight:700;text-transform:uppercase}.hero h1{font-size:clamp(34px,4vw,58px);line-height:1.15;margin:16px 0}.hero p{max-width:600px;color:#dceef5;font-size:17px;margin:0 0 26px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;padding:11px 20px;border-radius:3px;font-weight:700;font-size:14px;cursor:pointer}.btn-primary{background:var(--cyan);color:#062033}.btn-ghost{border-color:#8fc6d8;color:#fff}.hero-art{position:relative;min-height:330px}.hero-art:before{content:"";position:absolute;inset:16% 4% 8% 4%;border:1px solid rgba(145,230,244,.45);transform:skewY(-8deg)}.hero-art img{position:absolute;width:78%;right:3%;bottom:4%;filter:drop-shadow(0 24px 28px rgba(0,0,0,.35))}.section{padding:82px 0}.section-muted{background:var(--soft)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:34px}.section-kicker{color:var(--blue);font-size:12px;letter-spacing:2px;font-weight:700}.section h2{font-size:34px;line-height:1.25;margin:7px 0}.section-intro{color:var(--muted);max-width:650px;margin:0}.link-arrow{color:var(--blue);font-weight:700;white-space:nowrap}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.capability,.product-card,.case-card,.article-card{background:#fff;border:1px solid var(--line);border-radius:6px}.capability{padding:24px;min-height:190px}.capability-icon{width:40px;height:40px;background:#e2f6fa;color:#087f9e;display:grid;place-items:center;font-weight:800;margin-bottom:16px}.capability h3,.product-card h3,.case-card h3,.article-card h3{margin:0 0 8px;font-size:19px}.capability p,.product-card p,.case-card p,.article-card p{color:var(--muted);font-size:14px;margin:0}.product-card{overflow:hidden}.product-card img{width:100%;height:190px;object-fit:contain;background:#f7fafc;padding:18px}.product-card-body{padding:18px}.tag{display:inline-block;font-size:11px;color:#087f9e;background:#e5f8fb;padding:3px 8px;margin-bottom:10px}.product-card .link-arrow{display:inline-block;margin-top:14px;font-size:13px}.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;align-items:center}.split img{width:100%;height:360px;object-fit:cover;border-radius:6px}.check-list{padding:0;margin:22px 0;list-style:none}.check-list li{position:relative;padding-left:26px;margin:10px 0;color:#344b5d}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:800}.process{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.process-step{position:relative;padding:20px 16px;background:#fff;border-top:3px solid var(--blue);border-radius:4px}.process-step b{display:block;color:var(--blue);font-size:12px;margin-bottom:10px}.process-step h3{font-size:16px;margin:0 0 4px}.process-step p{font-size:13px;color:var(--muted);margin:0}.case-card{overflow:hidden}.case-card img{height:190px;width:100%;object-fit:cover;background:#101a24}.case-card-body{padding:18px}.faq{border-top:1px solid var(--line);padding:18px 0}.faq summary{font-weight:700;cursor:pointer}.faq p{color:var(--muted);margin:10px 0 0;font-size:14px}.page-hero{background:#eaf5f8;padding:58px 0;border-bottom:1px solid var(--line)}.page-hero h1{font-size:42px;line-height:1.2;margin:10px 0}.page-hero p{color:var(--muted);max-width:720px;margin:0}.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}.filter-btn{border:1px solid var(--line);background:#fff;color:var(--muted);padding:8px 14px;border-radius:20px;cursor:pointer}.filter-btn.active,.filter-btn:hover{border-color:var(--blue);background:#eaf7fb;color:var(--blue)}.status{font-size:11px;color:#92712b;background:#fff5dc;padding:3px 8px;display:inline-block;margin-bottom:10px}.detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:54px}.detail-media{background:var(--soft);border:1px solid var(--line);padding:30px;display:grid;place-items:center;min-height:430px}.detail-media img{max-height:360px;object-fit:contain}.spec-table{width:100%;border-collapse:collapse;margin:22px 0}.spec-table th,.spec-table td{text-align:left;border-bottom:1px solid var(--line);padding:11px 8px;font-size:14px}.spec-table th{color:var(--muted);font-weight:500;width:32%}.eq-preview{background:#081a2a;color:#fff;border-radius:6px;padding:24px;overflow:hidden}.eq-preview-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.eq-preview small{color:#8eb6c8}.eq-bars{display:flex;align-items:end;gap:5px;height:125px;border-bottom:1px solid #35536a;padding:0 6px}.eq-bars span{flex:1;background:linear-gradient(#24c9d4,#178bd4);min-height:20px}.eq-controls{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:16px}.eq-controls label{font-size:11px;color:#9fc1cf}.eq-controls input{width:100%;accent-color:var(--cyan)}.footer{background:var(--dark);color:#c6dae4;padding:54px 0 18px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:28px}.footer h3{color:#fff;font-size:16px;margin:0 0 14px}.footer p,.footer li{font-size:13px;color:#a9c1cc;margin:0 0 7px}.footer ul{list-style:none;padding:0;margin:0}.footer-bottom{border-top:1px solid #294157;margin-top:34px;padding-top:15px;font-size:12px;color:#86a4b3;display:flex;justify-content:space-between}.mobile-only{display:none}.toast{position:fixed;bottom:22px;right:22px;background:#102336;color:#fff;padding:11px 16px;border-radius:4px;opacity:0;transform:translateY(10px);transition:.2s;z-index:30}.toast.show{opacity:1;transform:none}
@media(max-width:900px){.nav-links{gap:16px}.hero-grid{grid-template-columns:1fr;min-height:650px;padding:72px 0 0}.hero-art{min-height:260px}.grid-4{grid-template-columns:repeat(2,1fr)}.process{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}.detail-layout,.split{grid-template-columns:1fr;gap:28px}}
@media(max-width:640px){.topbar-inner,.nav-inner,.wrap,.hero-grid{width:min(100% - 28px,1180px)}.topbar-inner{height:34px}.topbar-inner span{display:none}.site-nav{height:66px}.brand{font-size:15px}.brand img{width:36px;height:36px}.brand small{display:none}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:14px;right:14px;top:58px;background:#fff;border:1px solid var(--line);padding:8px 16px;box-shadow:0 12px 24px rgba(16,35,54,.12)}.nav-links.open{display:flex;flex-direction:column;align-items:stretch;gap:0}.nav-links a{padding:11px 0;border-bottom:1px solid var(--line)}.nav-links a:last-child{border:0}.nav-cta{margin:7px 0;text-align:center}.hero-grid{min-height:630px;padding:56px 0 32px;gap:12px}.hero h1{font-size:36px}.hero p{font-size:15px}.hero-art{min-height:0}.hero-art:before{display:none}.hero-art img{position:relative;width:100%;right:auto;bottom:auto;max-height:280px;object-fit:contain;margin-top:20px}.section{padding:58px 0}.section-head{display:block}.section-head .link-arrow{display:inline-block;margin-top:15px}.section h2{font-size:29px}.grid-3,.grid-4{grid-template-columns:1fr}.split img{height:250px}.process{grid-template-columns:1fr 1fr}.page-hero{padding:42px 0}.page-hero h1{font-size:34px}.detail-media{min-height:280px;padding:18px}.detail-media img{max-height:240px}.eq-controls{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}}