:root{--bg:#071c2b;--panel:#0b2939;--ink:#f0f6f9;--muted:#b6cad3;--accent:#6be3cb;--line:#294654;--max:1240px;--gutter:clamp(20px,4.5vw,72px);color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.85 "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.4;font-weight:600}h1{font-size:clamp(32px,3.7vw,55px);letter-spacing:-.015em}h2{font-size:clamp(27px,2.7vw,39px)}h3{font-size:21px}p{color:var(--muted)}a,button,input,textarea,select{touch-action:manipulation}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.6}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}.wrap{width:calc(100% - var(--gutter)*2);max-width:var(--max);margin-inline:auto}.section{padding-block:86px}.tint{background:var(--panel)}.eyebrow{color:var(--accent);font-size:12px;letter-spacing:.14em;font-weight:600;margin-bottom:18px}.section-title{max-width:810px;margin-bottom:38px}.section-title p{margin-top:18px}.note{font-size:13px;color:#a5bdc9;margin-top:18px}.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;justify-content:center;align-items:center;gap:18px;border:1px solid #547b85;padding:10px 23px;min-height:48px;font-size:15px;font-weight:600;border-radius:3px;background:transparent;color:var(--ink)}.btn:hover{border-color:var(--accent);background:#173f47}.btn.primary{color:#06322e;background:var(--accent);border-color:var(--accent)}.btn.primary:hover{background:#a0f0dd}.text-link{color:var(--accent);border-bottom:1px solid #427870;padding-bottom:4px}.skip{position:fixed;top:-90px;left:20px;background:var(--accent);padding:12px 18px;color:var(--bg);z-index:100}.skip:focus{top:8px}
.site-header{position:sticky;top:0;z-index:30;background:rgba(7,28,43,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.header-inner{min-height:82px;display:flex;align-items:center;gap:26px}.brand{display:flex;gap:15px;align-items:center;white-space:nowrap}.brand strong{font-size:25px;line-height:1.1}.brand-name{font:17px/1.3 Arial,sans-serif;border-left:1px solid var(--line);padding-left:15px}.brand-name small{display:block;font-size:10px;letter-spacing:.04em;margin-top:5px;color:var(--muted)}.nav{margin-left:auto;display:flex;align-items:center;gap:25px;font-size:14px}.nav a{white-space:nowrap}.nav a:hover,.nav a[aria-current]{color:var(--accent)}.nav-cta{border:1px solid #4e9690;padding:7px 15px}.menu-toggle{display:none;background:transparent;color:var(--ink);padding:7px 12px;border:1px solid #56727f;margin-left:auto;border-radius:3px}
.hero{position:relative;min-height:690px;display:flex;align-items:center;overflow:hidden}.hero-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,19,31,.92),rgba(4,19,31,.56) 49%,rgba(4,19,31,.1)),linear-gradient(0deg,#071c2b,transparent 30%);pointer-events:none}.hero-content{position:relative;z-index:1;padding-block:74px 98px}.hero h1{max-width:740px}.hero h1 span{display:block;color:var(--accent);font-size:.78em;margin-top:12px}.hero .intro{max-width:575px;font-size:18px;color:#d5e2e8;margin-top:25px}.product-kicker{display:flex;gap:16px;align-items:center;font-size:14px;margin-bottom:20px}.product-kicker strong{font:600 27px Arial,sans-serif;color:var(--accent)}.other-products{font-size:13px;margin-top:17px}.hero-foot{display:flex;gap:22px;flex-wrap:wrap;font-size:13px;color:#c9dedf;margin-top:34px}.hero-disclosure{position:absolute;right:var(--gutter);bottom:16px;z-index:2;background:#071c2bcc;padding:4px 9px;font-size:11px;color:#c6d7df}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;padding-block:35px;border-bottom:1px solid var(--line)}.metric strong{font:500 28px/1.3 Arial,sans-serif}.metric p{font-size:14px;margin-top:8px}.metric+.metric{padding-left:25px;border-left:1px solid var(--line)}.split{display:grid;grid-template-columns:1.05fr 1fr;gap:65px;align-items:center}.split.reverse .visual{order:2}.split.reverse .copy{order:1}.visual{min-width:0}.visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:3px}.visual figcaption{font-size:12px;color:#a5bcc7;margin-top:10px}.copy h2{margin-bottom:20px}.copy p+p{margin-top:16px}.list{padding-left:20px;color:var(--muted);margin:22px 0}.list li{padding-left:4px;margin:9px 0}.list li::marker{color:var(--accent)}.line-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:45px}.line-item{border-top:2px solid #3b7b7a;padding-top:22px}.line-item span{color:var(--accent);font-size:12px}.line-item h3{margin:12px 0}.line-item p{font-size:15px}.app{padding-block:70px;border-top:1px solid var(--line)}.app h2{font-size:clamp(25px,2.3vw,34px)}.app .btn-row{margin-top:22px}.band{background:#103b41;padding-block:68px}.band .wrap{display:flex;justify-content:space-between;gap:45px;align-items:center}.band p{max-width:530px;margin-top:18px}.band .btn-row{flex-shrink:0}.industry-list{display:grid;grid-template-columns:1fr 1fr;gap:0 60px}.industry{border-top:1px solid var(--line);padding:24px 0}.industry p{font-size:15px;margin-top:8px}.faq details{border-bottom:1px solid var(--line)}.faq summary{list-style:none;cursor:pointer;position:relative;padding:22px 38px 22px 0;font-size:18px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";position:absolute;right:6px;color:var(--accent);font-size:23px}.faq details[open]>summary:after{content:"−"}.faq details>p{padding:0 30px 24px 0;font-size:15px}.question-list{margin:30px 0;padding:0;list-style:none}.question-list a{display:block;border-bottom:1px solid var(--line);padding:16px 0;color:var(--accent)}
.breadcrumb{font-size:13px;color:#a5bdc9;padding-block:25px}.breadcrumb ol{display:flex;gap:10px;flex-wrap:wrap;list-style:none;padding:0;margin:0}.breadcrumb li+li:before{content:"/";margin-right:10px;color:#5b7c8e}.page-intro{padding:35px 0 65px;max-width:890px}.page-intro p{font-size:18px;margin-top:22px}.page-intro .eyebrow{font-size:12px;margin-top:0}.page-intro h1{font-size:clamp(31px,3.4vw,49px)}.article-layout{display:grid;grid-template-columns:minmax(0,2.4fr) minmax(230px,1fr);gap:70px;align-items:start}.article-body{min-width:0}.article-body section{padding-block:35px;border-top:1px solid var(--line);scroll-margin-top:90px}.article-body h2{font-size:28px;margin-bottom:20px}.article-body h3{font-size:20px;margin:23px 0 12px}.article-body p+p{margin-top:16px}.article-body .visual{margin-bottom:38px}.article-body ol{padding-left:25px;color:var(--muted)}.article-body ol li{margin-bottom:15px}.toc{position:sticky;top:115px;border-left:1px solid var(--line);padding-left:26px;font-size:14px}.toc strong{display:block;font-size:16px;margin-bottom:15px}.toc ul{list-style:none;padding:0;margin:0}.toc li{margin:12px 0;color:var(--muted)}.toc a:hover{color:var(--accent)}.toc .btn{margin-top:22px;font-size:14px;padding:9px 15px}.specs{display:grid;grid-template-columns:125px 1fr;margin:25px 0}.specs dt,.specs dd{padding:16px 0;border-top:1px solid var(--line);margin:0}.specs dt{color:var(--ink)}.specs dd{color:var(--muted)}.related{display:grid;grid-template-columns:1fr 1fr;gap:22px}.related a{border-top:1px solid var(--line);padding:20px 0;color:var(--accent)}.legal{max-width:850px}.legal section{margin:35px 0}.legal h2{font-size:25px;margin-bottom:16px}.legal p+p{margin-top:12px}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}.contact-direct{display:flex;flex-direction:column;gap:10px;margin:26px 0;overflow-wrap:anywhere}.contact-direct span{font-size:13px;color:var(--muted)}.contact-direct a{font-size:clamp(19px,2vw,27px);color:var(--accent)}.contact-helper{border-block:1px solid var(--line);padding-block:18px;margin-top:28px;font-size:14px;color:var(--muted)}.contact-helper strong{display:block;color:var(--ink);font-size:16px;margin-bottom:8px}.brief-fields{border:0;padding:0;margin:0;min-width:0}.brief-fields legend{font-size:24px;font-weight:600;margin-bottom:25px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.field{min-width:0}.field.full{grid-column:1/-1}label{display:block;font-size:14px;margin-bottom:8px}input,textarea,select{width:100%;min-height:48px;border:1px solid #506f80;background:#0b293c;color:var(--ink);border-radius:3px;padding:11px 12px;font-size:15px}textarea{min-height:115px;resize:vertical}input::placeholder,textarea::placeholder{color:#9bb0bd}.form-action{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:20px}.form-action p{font-size:13px}.result{padding:22px;background:#0e303e;border:1px solid #407985;margin-top:25px}.result h3{margin-bottom:15px}.result p{font-size:13px;margin-bottom:16px}.result textarea{min-height:250px;font-size:14px}.status{font-size:14px;color:var(--accent);margin-top:14px;min-height:1.8em}[hidden]{display:none!important}.noscript-notice{border:1px solid #476579;padding:14px;font-size:14px;margin-bottom:20px}.sr-label{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.footer{background:#041522;border-top:1px solid var(--line);padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:60px}.footer .brand{margin-bottom:20px}.footer p,.footer li{font-size:14px}.footer h3{font-size:16px;margin-bottom:18px}.footer ul{list-style:none;margin:0;padding:0}.footer li{margin:9px 0;color:var(--muted)}.footer a:hover{color:var(--accent)}.footer-notice{border-top:1px solid var(--line);padding-top:20px;margin-top:30px;color:#a0b9c6;font-size:12px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:22px;font-size:12px;color:#a5bdc9}.footer-links{display:flex;gap:20px;flex-wrap:wrap}.back-top{position:fixed;bottom:24px;right:24px;z-index:20;background:#0e3648;border:1px solid #50827f;padding:7px 13px;color:var(--accent);font-size:13px;display:none}.back-top.show{display:block}
@media(min-width:961px){.nav{display:flex!important}}
@media(max-width:1100px){.nav{gap:16px}.brand strong{font-size:23px}.brand-name{font-size:15px}.split,.article-layout,.contact-grid{gap:40px}.line-grid{gap:22px}}
@media(max-width:960px){.header-inner{flex-wrap:wrap;min-height:75px;padding-block:15px;gap:14px}.nav{width:100%;margin:0;padding:12px 0;flex-wrap:wrap;gap:14px 24px}.js .nav{display:none}.js .nav.is-open{display:flex}.js .menu-toggle{display:block}.hero{min-height:640px}.split{gap:35px}.article-layout{grid-template-columns:1fr}.toc{position:static;order:-1;border-left:0;border-block:1px solid var(--line);padding:20px 0}.toc ul{display:flex;flex-wrap:wrap;gap:5px 22px}.toc li{margin:0}.toc .btn{display:none}.line-grid{grid-template-columns:1fr 1fr}.band .wrap{display:block}.footer-grid{gap:30px}.contact-grid{grid-template-columns:1fr;gap:45px}}
@media(max-width:700px){.section{padding-block:60px}.hero{min-height:630px}.hero-content{padding-block:55px 80px}.hero:after{background:linear-gradient(90deg,rgba(4,19,31,.9),rgba(4,19,31,.68)),linear-gradient(0deg,#071c2b,transparent 35%)}.hero .intro{font-size:16px}.hero h1{font-size:34px}.hero-foot{gap:12px}.metrics{grid-template-columns:1fr 1fr;gap:24px}.metric+.metric{padding-left:0;border:0}.metric strong{font-size:24px}.split{grid-template-columns:1fr;gap:30px}.split.reverse .visual,.split.reverse .copy{order:initial}.app{padding-block:50px}.line-grid{gap:30px 23px}.industry-list,.footer-grid{grid-template-columns:1fr}.footer-grid{gap:35px}.footer-bottom{flex-direction:column}.article-body h2{font-size:25px}.page-intro{padding-bottom:42px}.page-intro p{font-size:16px}.related{grid-template-columns:1fr;gap:0}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.btn{padding:10px 18px}.specs{grid-template-columns:100px 1fr}.contact-helper{margin-top:20px}.back-top{right:15px;bottom:15px}.faq summary{font-size:17px}}
@media(max-width:370px){.brand strong{font-size:21px}.brand-name{font-size:14px;padding-left:10px}.brand{gap:10px}.hero h1{font-size:30px}.line-grid{grid-template-columns:1fr}.header-inner{gap:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}