:root{--ink:#173b4c;--muted:#617b89;--teal:#087f8c;--red:#be1838;--line:#dae7ed;--soft:#f0f7fa}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:#f4f7f9;color:var(--ink);font:16px/1.85 "Microsoft YaHei","PingFang SC",sans-serif}a{color:var(--teal);text-decoration:none}a:hover{color:var(--red)}button,input,select{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #159aaa;outline-offset:4px}p{margin:0 0 18px}h1,h2,h3{line-height:1.4}h1{font-size:clamp(30px,3.1vw,45px);margin:21px 0;letter-spacing:-.8px}h2{font-size:27px;margin:8px 0 24px}h3{font-size:19px;margin:9px 0}figure{margin:24px 0}img{max-width:100%}.reading-progress{position:fixed;top:0;left:0;height:3px;background:var(--red);z-index:40;width:0}.topbar{height:80px;position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:10px max(24px,calc((100vw - 1360px)/2));border-bottom:1px solid var(--line);background:#fffffff5;backdrop-filter:blur(10px)}.brand{display:block;line-height:0;flex-shrink:0}.brand img{object-fit:contain;display:block;width:205px;height:56px}.topbar>span{font-size:14px;color:var(--muted)}.topbar>div{display:flex;gap:8px}.button{display:inline-flex;justify-content:center;align-items:center;gap:5px;border:1px solid #c4dce6;border-radius:8px;padding:11px 18px;background:#fff;color:var(--teal);font-size:15px;font-weight:700;line-height:1.5;transition:background .18s,box-shadow .18s,transform .18s}.button:hover{background:#edf6f8;box-shadow:0 5px 14px #153c4d12;transform:translateY(-1px)}.primary{background:var(--red);border-color:var(--red);color:#fff;box-shadow:0 5px 12px #b81d3620}.primary:hover{background:#a91230;color:#fff}.compact{padding:8px 12px;font-size:13px}.page-shell{max-width:1360px;margin:auto;padding:25px 24px 55px}.backlink{font-size:13px;color:var(--muted);display:inline-block;margin-bottom:19px}.hero{display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:center;padding:30px;background:linear-gradient(130deg,#fff 40%,#eef8fc);border:1px solid var(--line);border-radius:20px;box-shadow:0 12px 38px #153c4d05}.hero-copy{padding:10px 0 10px 4px}.eyebrow,.section-kicker{color:var(--red);font-size:12px;font-weight:700;letter-spacing:1px;margin:0 0 12px}.hero-lead{font-size:21px;font-weight:700;color:#376477;margin-bottom:18px}.hero-copy>p:not(.eyebrow):not(.hero-lead){font-size:15px;color:var(--muted)}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.hero-figure{margin:0}.image-open{background:#fff;border:0;border-radius:12px;padding:0;display:block;width:100%;line-height:0;cursor:zoom-in;overflow:hidden}.image-open img{display:block;width:100%;height:auto}.hero-figure .image-open{border:1px solid #c7e1ed;box-shadow:0 6px 19px #18516c0d}.hero-figure figcaption{font-size:11px}figcaption{font-size:12px;color:var(--muted);line-height:1.65;margin-top:9px}.project-facts{display:grid;grid-template-columns:.85fr 1.2fr 1.35fr 1fr;background:#fff;border:1px solid var(--line);border-radius:12px;margin:20px 0 26px;padding:20px 12px}.project-facts>div{padding:0 18px;border-right:1px solid var(--line)}.project-facts>div:last-child{border:0}.project-facts span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.project-facts strong{font-size:14px;line-height:1.7;display:block}.article-layout{display:grid;grid-template-columns:188px minmax(0,1fr);gap:24px}.toc{position:sticky;top:102px;align-self:start;background:white;border:1px solid var(--line);border-radius:12px;padding:12px}.toc-toggle{background:none;border:0;width:100%;text-align:left;padding:7px 6px 12px;color:var(--ink);font-weight:700;font-size:15px;border-bottom:1px solid var(--line)}.toc-toggle span{font-size:10px;color:var(--muted);float:right;padding-top:5px}nav{display:grid;gap:4px;margin-top:9px}nav a{display:flex;align-items:center;gap:9px;padding:9px 7px;font-size:13px;color:#5e7886;border-radius:6px}nav b{font-size:11px;background:#eef4f7;border-radius:4px;padding:0 5px}nav a.active,nav a:hover{background:#e7f3f6;color:var(--teal);box-shadow:inset 3px 0 var(--red)}article{min-width:0}section{position:relative;background:white;border:1px solid var(--line);border-radius:15px;padding:32px;margin-bottom:22px;scroll-margin-top:0}.anchor-alias{position:absolute;top:0}.lead{font-size:18px;color:#2c5365}.needs-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:25px}.needs-grid>div{border:1px solid #e2edf1;background:#f5f9fb;padding:16px;border-radius:9px}.needs-grid i{font-size:12px;font-style:normal;color:var(--teal);font-weight:700}.needs-grid h3{font-size:17px}.needs-grid p{font-size:14px;color:var(--muted);margin:0}.deployment-flow{display:flex;gap:12px;align-items:center;margin:24px 0}.deployment-flow>div{flex:1;min-width:0;padding:13px 10px;background:var(--soft);border-top:3px solid #66abb6;border-radius:6px}.deployment-flow small,.deployment-flow strong,.deployment-flow span{display:block}.deployment-flow small{color:var(--teal);font-weight:700;font-size:12px}.deployment-flow strong{font-size:15px;white-space:nowrap}.deployment-flow span{font-size:12px;color:var(--muted)}.deployment-flow>b{color:#76aab8}.note{padding:17px 20px;background:var(--soft);border-left:3px solid #208b9b;border-radius:0 8px 8px 0}.note strong{font-size:15px}.note p{font-size:14px;margin:5px 0 0;color:#506d7c}.product-card{display:grid;grid-template-columns:.95fr 1.05fr;gap:26px;padding:24px 0;border-bottom:1px solid var(--line);align-items:center}.product-card:first-of-type{padding-top:0}.product-card:last-of-type{border:0}.product-card figure{margin:0;background:#f4f8fa;border:1px solid #e1ebef;border-radius:10px;padding:12px}.product-card .image-open{border-radius:5px}.product-card img{height:185px;object-fit:contain}.role{font-size:11px;color:var(--teal);background:#e9f5f7;padding:4px 9px;border-radius:5px}.product-card h3{font-size:25px;margin:10px 0 6px;letter-spacing:.2px}.spec{font-size:13px;font-weight:700;color:#607987;margin-bottom:12px}.product-card p:not(.spec){font-size:14px;line-height:1.85;margin-bottom:12px}.text-link{font-size:13px;font-weight:700;display:inline-block;padding:5px 0}.fine{font-size:12px;line-height:1.8;color:var(--muted);margin:10px 0 0}.value-list{display:grid;gap:0}.value-list>div{padding:18px 0;border-bottom:1px solid #e3edf1;display:grid;grid-template-columns:175px 1fr;gap:22px}.value-list>div:first-child{padding-top:0}.value-list p{font-size:14px;margin:0;color:#527080}.value-list b{font-size:16px}.faq{border:1px solid var(--line);border-radius:8px;margin-bottom:9px;overflow:hidden;background:#fff}summary{list-style:none;display:flex;gap:12px;align-items:center;justify-content:space-between;background:#f0f7f9;padding:11px 14px;cursor:pointer;font-size:14px;font-weight:700;line-height:1.6}summary::-webkit-details-marker{display:none}.question{display:flex;align-items:center;gap:9px}.question b{font-size:11px;color:var(--teal);background:#dfedf1;padding:3px 6px;border-radius:4px}.question em,.answer em{font-size:12px;font-style:normal;line-height:1.5;width:21px;flex-shrink:0;text-align:center;border-radius:4px;background:var(--red);color:#fff;padding:1px}.toggle-label{font-size:12px;color:var(--teal);white-space:nowrap;font-weight:700}.toggle-label:before{content:'＋ 展开'}details[open] .toggle-label:before{content:'− 收起'}.answer{padding:13px 16px;display:flex;align-items:flex-start;gap:10px;font-size:14px}.answer em{background:#e6f5f6;border:1px solid #c6e3e7;color:var(--teal)}.answer p{margin:0}form{margin-top:22px}.enquiry-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-bottom:19px}label{display:block;font-size:13px;font-weight:700}input,select{display:block;width:100%;border:1px solid #c8dce6;border-radius:7px;padding:10px 12px;margin-top:7px;background:#fff;color:var(--ink);font-size:14px}.wide{grid-column:1/-1}.contact-section{background:linear-gradient(130deg,#fff,#eff8fa)}.form-hint{display:inline-block;margin-left:15px}.page-footer{max-width:1312px;margin:auto;padding:24px;display:flex;gap:26px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.page-footer span{margin-left:auto}dialog{border:1px solid #d3e3eb;border-radius:12px;padding:0;width:1200px;max-width:95vw;max-height:94vh;color:var(--ink);overflow:hidden}dialog::backdrop{background:#173846b8}.viewer-toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:12px 16px;border-bottom:1px solid var(--line);font-size:13px}.viewer-toolbar>div{display:flex;gap:8px;align-items:center;flex-shrink:0}.viewer-canvas{overflow:auto;max-height:calc(94vh - 75px);padding:15px;background:#fff;display:flex;justify-content:center}.viewer-canvas img{max-width:100%;max-height:calc(92vh - 100px);object-fit:contain;width:auto;height:auto}#viewer-count{font-size:12px;min-width:35px;text-align:center}.toc nav[hidden]{display:none}
@media(min-width:1600px){.page-shell{max-width:1460px}.topbar{padding-left:max(24px,calc((100vw - 1460px)/2));padding-right:max(24px,calc((100vw - 1460px)/2))}.hero{grid-template-columns:.8fr 1.2fr}.hero-copy{padding:15px}}
@media(max-width:1000px){.topbar>span{display:none}.hero{gap:20px;padding:24px}h1{font-size:31px}.hero-lead{font-size:18px}.article-layout{grid-template-columns:155px minmax(0,1fr);gap:16px}section{padding:24px}.project-facts{grid-template-columns:1fr 1fr;gap:18px}.project-facts>div:nth-child(2){border:0}.needs-grid{grid-template-columns:1fr}.needs-grid>div{display:grid;grid-template-columns:22px 105px 1fr;gap:10px;align-items:baseline}.needs-grid h3{margin:0}.product-card{grid-template-columns:1fr;gap:16px}.product-card img{height:190px}.deployment-flow{gap:7px}.deployment-flow strong{font-size:12px}.deployment-flow span{font-size:11px}.value-list>div{grid-template-columns:1fr;gap:5px}}
@media(max-width:700px){html{scroll-padding-top:87px}.page-shell{padding:18px 14px 25px}.topbar{height:68px;padding:8px 14px;gap:12px}.brand img{width:155px;height:43px}.topbar [data-print]{display:none}.topbar .button{font-size:11px;padding:8px}.hero{grid-template-columns:1fr;padding:22px;gap:20px;border-radius:13px}.hero-copy{padding:0}h1{font-size:31px;margin:15px 0}.hero-lead{font-size:17px}.hero-actions{margin-top:20px}.button{font-size:13px;padding:10px 13px}.project-facts{margin:15px 0;padding:16px 0;gap:15px}.project-facts>div{padding:0 14px}.project-facts strong{font-size:12px}.project-facts span{font-size:10px}.article-layout{display:block}.toc{position:relative;top:0;padding:10px;margin-bottom:15px}.toc nav{grid-template-columns:repeat(3,1fr);gap:4px}.toc nav a{padding:8px 4px;font-size:11px;gap:5px}.toc-toggle{font-size:13px}.toc-toggle span{font-size:10px}.toc nav b{font-size:10px}section{padding:22px 19px;margin-bottom:16px;border-radius:12px;scroll-margin-top:0}h2{font-size:23px;margin-bottom:20px}.lead{font-size:16px}body{font-size:15px}.needs-grid>div{grid-template-columns:22px 1fr;gap:4px 8px}.needs-grid p{grid-column:2}.deployment-flow{flex-direction:column;align-items:stretch;gap:6px}.deployment-flow>b{text-align:center;transform:rotate(90deg);line-height:1.2}.deployment-flow>div{padding:10px 13px}.deployment-flow strong{font-size:15px}.deployment-flow span{font-size:12px}.product-card{padding:20px 0}.product-card h3{font-size:23px}.product-card img{height:160px}.enquiry-grid{grid-template-columns:1fr}.wide{grid-column:auto}.form-hint{display:block;margin:10px 0 0}.page-footer{padding:20px;gap:10px 20px;flex-wrap:wrap}.page-footer span{margin:0;width:100%}.viewer-toolbar{padding:9px;flex-wrap:wrap}.viewer-toolbar>span{display:none}.viewer-toolbar .button{font-size:11px;padding:7px 9px}.viewer-toolbar>div{width:100%;justify-content:space-between}.viewer-canvas{padding:5px}summary{font-size:13px;padding:10px}.question{gap:6px}.question b{padding:2px 4px}.answer{font-size:13px;padding:11px}.toggle-label{font-size:10px}.question em{width:18px;font-size:11px}.section-kicker{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{.topbar,.toc,.reading-progress,.hero-actions,.backlink,dialog,form,.page-footer,.toggle-label{display:none!important}body{background:#fff;color:#173b4c;font-size:10pt}.page-shell{padding:0;max-width:none}.hero{padding:15px;gap:20px;box-shadow:none}h1{font-size:24pt}h2{font-size:18pt}.article-layout{display:block}section{break-inside:auto;padding:20px;margin:18px 0}.project-facts{margin:15px 0}.product-card{grid-template-columns:1fr 1fr;break-inside:avoid}.product-card img{height:140px}.needs-grid{grid-template-columns:repeat(3,1fr)}.needs-grid>div{display:block}figure{break-inside:avoid}details:not([open]) .answer{display:flex}.contact-section{display:none}}

.toc nav a{font-size:15px}.toc nav b{font-size:13px}figcaption,.hero-figure figcaption,.fine{font-size:14px}.section-kicker,.eyebrow{font-size:14px}.product-card p:not(.spec),.value-list p,.answer{font-size:16px}.spec,.text-link,summary{font-size:15px}.field-scenes,.project-check{margin:20px 0;padding:20px;background:#f2f8fa;border:1px solid #dcebef;border-radius:10px}.field-scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.field-scenes h3{grid-column:1/-1;margin:0}.field-scenes p,.project-check p{font-size:15px;margin:5px 0 0}.field-scenes strong{color:#087f8c}@media(max-width:700px){.field-scenes{grid-template-columns:1fr;gap:12px}.field-scenes h3{grid-column:auto}.toc nav a{font-size:13px}figcaption,.fine{font-size:13px}.product-card p:not(.spec),.value-list p,.answer{font-size:15px}}