:root{--primary: #0b6fba;--primary-dark: #085892;--primary-soft: #e8f3fb;--dark: #0f172a;--text: #475569;--text-light: #94a3b8;--bg: #ffffff;--bg-soft: #f6f9fc;--border: #e2e8f0;--ac-green: #16a34a;--radius: 12px;--shadow: 0 6px 24px rgba(15, 23, 42, .06);--shadow-lg: 0 16px 48px rgba(15, 23, 42, .12)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.app{display:flex;flex-direction:column;min-height:100vh}main{flex:1}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}.header{position:sticky;top:0;z-index:100;background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:80px}.brand{display:flex;align-items:center;gap:12px}.brand-logo{height:72px;width:auto;display:block}.brand-name{font-size:20px;font-weight:800;letter-spacing:2px;line-height:1.5;padding:6px 2px;background:linear-gradient(135deg,#0b6fba,#12a5c9);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}.nav{display:flex;align-items:center;gap:8px}.nav a{padding:8px 16px;border-radius:8px;font-size:15px;color:var(--text);transition:all .15s}.nav a:hover{color:var(--primary);background:var(--primary-soft)}.nav a.active{color:var(--primary);font-weight:600}.nav-toggle{display:none;background:none;border:none;font-size:22px;color:var(--dark);cursor:pointer}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:8px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}.btn-outline:hover{background:var(--primary-soft)}.btn-light{background:#fff;color:var(--primary)}.btn-light:hover{background:var(--primary-soft)}.actions{display:flex;gap:16px;flex-wrap:wrap}.hero{background:linear-gradient(135deg,#0a5b94,#0b6fba 55%,#12a5c9);color:#fff;padding:96px 0 0;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:#ffffff14}.hero:before{content:"";position:absolute;left:-80px;bottom:-160px;width:360px;height:360px;border-radius:50%;background:#ffffff0f}.hero .container{position:relative;z-index:1}.hero h1{font-size:44px;line-height:1.25;margin-bottom:16px;font-weight:800;text-shadow:0 2px 12px rgba(0,0,0,.45)}.hero p.sub{font-size:18px;opacity:.95;max-width:560px;margin-bottom:32px;text-shadow:0 1px 8px rgba(0,0,0,.5)}.hero .actions{display:flex;gap:16px;flex-wrap:wrap}.section{padding:80px 0}.section.soft{background:var(--bg-soft)}.section-head{text-align:center;max-width:640px;margin:0 auto 48px}.section-head h2{font-size:30px;color:var(--dark);margin-bottom:12px}.section-head p{color:var(--text-light);font-size:16px}.section-more{text-align:center;margin-top:40px}.grid{display:grid;gap:24px}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .2s;display:flex;flex-direction:column}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}.card-thumb{height:160px;display:flex;align-items:center;justify-content:center;color:var(--primary);background:var(--primary-soft)}.card-thumb img{width:100%;height:100%;object-fit:cover}.card-body{padding:20px;flex:1;display:flex;flex-direction:column}.card-title{font-size:17px;font-weight:700;color:var(--dark);margin-bottom:8px}.card-spec{font-size:14px;color:var(--text-light);margin-bottom:16px}.card-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center}.tag{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:600}.tag-ac{background:#e0f0ff;color:#0b6fba}.tag-dc{background:#e6f7ec;color:var(--ac-green)}.tag-ec{background:#f3e8ff;color:#7c3aed}.tag-other{background:#fef3c7;color:#b45309}.app-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.app-card{padding:20px 12px;text-align:center;background:#fff;border:1px solid var(--border);border-radius:var(--radius);font-size:15px;color:var(--dark);transition:all .15s}.app-card:hover{border-color:var(--primary);color:var(--primary)}.about-preview{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}.about-preview-desc{font-size:16px;line-height:1.8;color:var(--text);margin-bottom:24px;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}.about-preview-img{height:280px;border-radius:var(--radius);overflow:hidden;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center}.about-preview-img img{width:100%;height:100%;object-fit:cover}.contact-cta{background:linear-gradient(135deg,#0a5b94,#0b6fba 55%,#12a5c9);color:#fff;padding:56px 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h1{font-size:32px;color:var(--dark);margin-bottom:8px}.products-filterbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;padding:12px 16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius)}.products-filterbar span{color:var(--text);font-size:15px}.products-filterbar strong{color:var(--primary)}.nav-drop{display:flex;align-items:center}.nav-strip{position:absolute;top:100%;left:0;right:0;background:#f1f5f9;border-bottom:1px solid var(--border);box-shadow:0 6px 16px #0000000a}.nav-strip:before{content:"";position:absolute;top:-16px;left:0;right:0;height:16px}.nav-strip-inner{display:flex;flex-wrap:wrap;gap:8px;padding:14px 0}.nav-strip .tab{margin:0}.detail-wrap{display:grid;grid-template-columns:1fr 1.4fr;gap:48px;align-items:start}.detail-thumb{border-radius:var(--radius);background:#fff;color:var(--primary);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;height:320px;position:sticky;top:90px;overflow:hidden}.detail-thumb img{width:100%;height:100%;object-fit:contain}.specs-table{width:100%;border-collapse:collapse}.specs-table td{padding:12px 16px;border-bottom:1px solid var(--border);font-size:15px}.specs-table td:first-child{width:130px;color:var(--text-light);background:var(--bg-soft);font-weight:600}.page-banner{width:100%}.page-banner img{width:100%;display:block}.about-intro{max-width:820px;margin:0 auto}.intro-para{font-size:18px;line-height:2;color:var(--text);margin-bottom:16px;text-indent:2em}.intro-para:last-child{margin-bottom:0}.intro-en{margin-top:24px;padding-top:20px;border-top:1px dashed var(--border)}.intro-en .intro-para{color:var(--text-light);text-indent:0}.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.gallery 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820px){.grid-4,.grid-3,.app-grid,.gallery,.stats-grid,.cert-grid{grid-template-columns:repeat(2,1fr)}.about-preview{grid-template-columns:1fr;gap:24px}.contact-grid{grid-template-columns:1fr}.detail-wrap{grid-template-columns:1fr;gap:24px}.detail-thumb{position:static;height:240px}.hero h1{font-size:32px}.footer-grid{grid-template-columns:1fr;gap:24px}.nav{display:none;position:absolute;top:80px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;border-bottom:1px solid var(--border);gap:4px}.nav.open{display:flex}.nav-toggle{display:block}.nav-drop{flex-direction:column;align-items:stretch}.nav-strip{position:static;box-shadow:none;border:none}.nav-strip-inner{flex-direction:column;padding:8px 0}}