*,*:before,*:after{box-sizing:border-box}*{margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6;color:#1a1f36;background:#fff;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,picture,video,canvas,svg{display:block;max-width:100%}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer;border:none;background:none}:root{--color-primary: #0b5fff;--color-primary-dark: #094acc;--color-primary-light: #e6efff;--color-accent: #ff6b35;--color-text: #1a1f36;--color-text-muted: #5b6478;--color-text-light: #8a93a6;--color-border: #e5e9f2;--color-bg: #ffffff;--color-bg-soft: #f6f8fc;--color-bg-section: #f0f4fb;--color-success: #10b981;--color-warning: #f59e0b;--shadow-sm: 0 1px 2px rgba(13, 24, 53, .05);--shadow-md: 0 4px 12px rgba(13, 24, 53, .08);--shadow-lg: 0 12px 32px rgba(13, 24, 53, .12);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--container: 1200px;--header-h: 72px}.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}.section{padding:80px 0}.section-sm{padding:48px 0}@media (max-width: 768px){.section{padding:56px 0}}h1,h2,h3,h4{line-height:1.2;color:var(--color-text);font-weight:700;letter-spacing:-.01em}h1{font-size:clamp(2rem,4.5vw,3.5rem);margin-bottom:16px}h2{font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:16px}h3{font-size:clamp(1.25rem,2vw,1.6rem);margin-bottom:12px}h4{font-size:1.125rem;margin-bottom:8px}p{margin-bottom:12px}.lead{font-size:1.125rem;color:var(--color-text-muted);line-height:1.7}.text-muted{color:var(--color-text-muted)}.text-light{color:var(--color-text-light)}.text-center{text-align:center}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-md);font-weight:600;font-size:.95rem;transition:all .2s ease;white-space:nowrap;border:2px solid transparent}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-accent{background:var(--color-accent);color:#fff}.btn-accent:hover{background:#e55a2b;transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-outline{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}.btn-outline:hover{background:var(--color-primary);color:#fff}.btn-ghost{background:transparent;color:var(--color-text)}.btn-ghost:hover{background:var(--color-bg-soft)}.btn-lg{padding:16px 32px;font-size:1rem}.card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px;transition:all .25s ease}.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--color-primary-light)}.card-flat{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px}.grid{display:grid;gap:24px}.grid-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.grid-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.site-header{position:sticky;top:0;z-index:100;background:#ffffffeb;backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--color-border);height:var(--header-h);display:flex;align-items:center}.header-inner{display:flex;align-items:center;justify-content:space-between;width:100%}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.125rem;color:var(--color-text)}.brand-mark{width:36px;height:36px;background:linear-gradient(135deg,var(--color-primary),#4a8aff);color:#fff;border-radius:8px;display:grid;place-items:center;font-size:1.1rem;font-weight:800}.nav{display:flex;align-items:center;gap:8px}.nav a{padding:8px 14px;border-radius:8px;font-size:.95rem;font-weight:500;color:var(--color-text);transition:background .15s}.nav a:hover,.nav a.active{background:var(--color-bg-soft);color:var(--color-primary)}.nav-cta{margin-left:8px}.nav-toggle{display:none}@media (max-width: 900px){.nav{display:none;position:absolute;top:var(--header-h);left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;border-bottom:1px solid var(--color-border);align-items:stretch;gap:4px}.nav.open{display:flex}.nav a{padding:12px 16px}.nav-cta{margin-left:0}.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:8px}.nav-toggle:hover{background:var(--color-bg-soft)}}.hero{position:relative;padding:80px 0 96px;background:radial-gradient(ellipse 80% 60% at 20% 0%,rgba(11,95,255,.08),transparent 60%),radial-gradient(ellipse 60% 50% at 100% 100%,rgba(255,107,53,.06),transparent 60%),var(--color-bg);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:64px;align-items:center}@media (max-width: 900px){.hero-grid{grid-template-columns:1fr;gap:40px}}.hero-eyebrow{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:var(--color-primary-light);color:var(--color-primary);border-radius:999px;font-size:.85rem;font-weight:600;margin-bottom:20px}.hero-eyebrow .dot{width:6px;height:6px;background:var(--color-primary);border-radius:50%}.hero h1 .accent{background:linear-gradient(135deg,var(--color-primary),var(--color-accent));-webkit-background-clip:text;background-clip:text;color:transparent}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px;padding-top:32px;border-top:1px solid var(--color-border)}.stat-num{font-size:1.6rem;font-weight:800;color:var(--color-primary)}.stat-label{font-size:.85rem;color:var(--color-text-muted)}.hero-visual{position:relative;aspect-ratio:1;background:linear-gradient(135deg,#f6f8fc,#e6efff);border-radius:var(--radius-xl);display:grid;place-items:center;border:1px solid var(--color-border)}.hero-visual svg{width:75%;height:75%}.section-head{max-width:720px;margin:0 auto 48px;text-align:center}.section-head .eyebrow{display:inline-block;font-size:.85rem;font-weight:700;color:var(--color-primary);text-transform:uppercase;letter-spacing:.1em;margin-bottom:12px}.section-soft{background:var(--color-bg-soft)}.product-card{display:flex;flex-direction:column;height:100%}.product-card .thumb{aspect-ratio:4/3;background:linear-gradient(135deg,#f6f8fc,#e6efff);border-radius:var(--radius-md);display:grid;place-items:center;margin-bottom:16px;border:1px solid var(--color-border);overflow:hidden}.product-card .thumb svg{width:70%;height:70%}.product-card .tag{display:inline-block;padding:3px 10px;background:var(--color-primary-light);color:var(--color-primary);border-radius:4px;font-size:.75rem;font-weight:600;margin-bottom:8px}.product-card h3{font-size:1.15rem}.product-card p{color:var(--color-text-muted);font-size:.95rem;margin-bottom:16px;flex-grow:1}.product-card .meta{display:flex;gap:12px;font-size:.85rem;color:var(--color-text-light);margin-bottom:16px;flex-wrap:wrap}.product-card .meta span{display:inline-flex;align-items:center;gap:4px}.product-card .link{color:var(--color-primary);font-weight:600;font-size:.95rem;display:inline-flex;align-items:center;gap:4px}.product-card .link:hover{gap:8px}.spec-table{width:100%;border-collapse:collapse;margin:24px 0;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden}.spec-table th,.spec-table td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--color-border)}.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}.spec-table th{width:35%;background:var(--color-bg-soft);font-weight:600;color:var(--color-text)}.spec-table td{color:var(--color-text-muted)}.form-group{margin-bottom:20px}.form-group label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px;color:var(--color-text)}.form-group label .req{color:var(--color-accent)}.form-control{width:100%;padding:12px 14px;border:1.5px solid var(--color-border);border-radius:var(--radius-md);font:inherit;background:#fff;transition:border-color .15s,box-shadow .15s}.form-control:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #0b5fff1a}textarea.form-control{min-height:120px;resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media (max-width: 600px){.form-row{grid-template-columns:1fr}}.badge{display:inline-block;padding:4px 10px;border-radius:4px;font-size:.8rem;font-weight:600;background:var(--color-bg-soft);color:var(--color-text)}.badge-primary{background:var(--color-primary-light);color:var(--color-primary)}.badge-success{background:#d1fae5;color:#065f46}.badge-warning{background:#fef3c7;color:#92400e}.badge-row{display:flex;gap:6px;flex-wrap:wrap}.site-footer{background:#0d1437;color:#c2c8d8;padding:64px 0 24px;margin-top:80px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}@media (max-width: 768px){.footer-grid{grid-template-columns:1fr 1fr}}@media (max-width: 480px){.footer-grid{grid-template-columns:1fr}}.footer-col h4{color:#fff;font-size:.95rem;margin-bottom:16px}.footer-col ul{list-style:none}.footer-col li{margin-bottom:8px}.footer-col a{color:#c2c8d8;font-size:.9rem;transition:color .15s}.footer-col a:hover{color:#fff}.footer-brand{font-size:1.1rem;font-weight:800;color:#fff;margin-bottom:12px;display:flex;align-items:center;gap:10px}.footer-bottom{border-top:1px solid #1d2547;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.85rem;color:#8a93a6}.eyebrow{display:inline-block;font-size:.85rem;font-weight:700;color:var(--color-primary);text-transform:uppercase;letter-spacing:.1em}.cta-band{background:linear-gradient(135deg,var(--color-primary),#4a8aff);color:#fff;padding:64px 0;text-align:center}.cta-band h2{color:#fff}.cta-band p{color:#ffffffe6;max-width:640px;margin:0 auto 28px}.cta-band .btn{background:#fff;color:var(--color-primary)}.cta-band .btn:hover{background:var(--color-bg-soft)}.cta-band .btn-outline{background:transparent;color:#fff;border-color:#ffffff80}.cta-band .btn-outline:hover{background:#ffffff1a}.prose{max-width:760px;margin:0 auto}.prose h2{margin-top:40px;margin-bottom:16px}.prose h3{margin-top:28px;margin-bottom:12px}.prose p,.prose li{color:var(--color-text);margin-bottom:14px;line-height:1.75}.prose ul,.prose ol{padding-left:24px;margin-bottom:16px}.prose li{margin-bottom:6px}.prose a{color:var(--color-primary);text-decoration:underline}.prose blockquote{border-left:4px solid var(--color-primary);padding:8px 16px;margin:20px 0;background:var(--color-bg-soft);color:var(--color-text-muted)}.breadcrumb{font-size:.85rem;color:var(--color-text-muted);margin-bottom:16px}.breadcrumb a{color:var(--color-primary)}.breadcrumb span{margin:0 8px;color:var(--color-text-light)}.page-header{padding:56px 0 32px;background:var(--color-bg-soft);border-bottom:1px solid var(--color-border)}.page-header h1{margin-bottom:8px}.page-header p{color:var(--color-text-muted);font-size:1.05rem}.faq-item{border-bottom:1px solid var(--color-border);padding:20px 0}.faq-item h3{font-size:1.05rem;margin-bottom:8px;color:var(--color-text)}.faq-item p{color:var(--color-text-muted);margin-bottom:0}.contact-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:48px}@media (max-width: 900px){.contact-grid{grid-template-columns:1fr}}.contact-info{background:var(--color-bg-soft);padding:32px;border-radius:var(--radius-lg)}.contact-info h3{font-size:1.15rem}.contact-row{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--color-border)}.contact-row:last-child{border-bottom:none}.contact-row .icon{width:40px;height:40px;background:var(--color-primary-light);color:var(--color-primary);border-radius:8px;display:grid;place-items:center;flex-shrink:0}.contact-row .label{font-size:.8rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.contact-row .value{font-weight:600;color:var(--color-text)}