:root{--ink:#172c38;--muted:#5c6b73;--line:#dce3e5;--paper:#f5f7f7;--accent:#204f64;font-family:Arial,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}a,button,input,select,textarea{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid #447e99;outline-offset:4px}[hidden]{display:none!important}p{line-height:1.75}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:500;letter-spacing:-.035em}h1{font-size:clamp(44px,4.7vw,68px);line-height:1.08;margin-bottom:25px}h2{font-size:clamp(30px,3.2vw,44px);line-height:1.2;margin-bottom:22px}h3{font-size:21px;line-height:1.4;margin-bottom:13px}img,video{max-width:100%}figure{margin:0}figcaption{font-size:12px;line-height:1.6;color:var(--muted);margin-top:12px}.skip{position:absolute;top:-100px;left:16px;padding:12px;background:white;z-index:10}.skip:focus{top:12px}
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.hero{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);grid-template-areas:"copy photo";gap:6%;align-items:center;padding:64px max(5vw,24px);max-width:1540px;margin:0 auto;min-height:560px}.hero-image{grid-area:photo;width:100%;height:460px;background:#e7edef url('assets/sv360-20261012/images/harbor-operation.jpg') center center/cover no-repeat}.hero-content{grid-area:copy;min-width:0;max-width:530px}.eyebrow{color:var(--accent);font-size:11px;letter-spacing:.14em;font-weight:600;line-height:1.6;margin-bottom:22px}.hero-copy{font-size:17px;line-height:1.8;color:var(--muted);max-width:450px;margin-bottom:29px}.hero-cta{display:flex;align-items:center;flex-wrap:wrap;gap:18px 25px}.value-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:23px max(5vw,24px);background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.value-strip span{font-size:13px;line-height:1.6;color:var(--muted);text-align:center}
.section{padding:80px max(7vw,24px)}.section-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:8%;align-items:start;margin-bottom:30px}.section-heading>.eyebrow{grid-column:1/-1;margin-bottom:14px}.section-heading h2{margin-bottom:0}.section-heading>p:last-child{font-size:16px;color:var(--muted);margin:0;max-width:540px}.footage{background:var(--paper)}.footage-grid{max-width:1080px;margin:0 auto}.footage-video video{display:block;width:100%;aspect-ratio:16/9;background:#172c38}.footage-downloads{display:flex;align-items:center;gap:20px;flex-wrap:wrap;max-width:1080px;margin:24px auto 0;font-size:13px}.footage-downloads span{color:var(--muted)}.footage-downloads a{border-bottom:1px solid #96a9b1;padding-bottom:3px}.footage-downloads a[data-video-lang=zh]{display:none}.footage-disclosure{max-width:1080px;margin:14px auto 0;font-size:12px;color:var(--muted);line-height:1.65}.video-error{font-size:14px;color:#84551a;margin:14px 0 0}.system{background:white}.asset-screen{margin:0}.asset-screen video{display:block;width:100%;height:auto;background:#152b38}.asset-benefits{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:38px;margin-top:38px}.asset-benefits article{border-top:1px solid var(--line);padding-top:23px}.asset-benefits img{display:none}.asset-benefits h3{font-size:20px}.asset-benefits p{font-size:15px;color:var(--muted);margin-bottom:0}.product-note{border-top:1px solid var(--line);padding-top:19px;margin:30px 0 0;font-size:12px;color:var(--muted)}
.applications{background:var(--paper)}.asset-applications{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}.asset-applications img,.asset-applications video{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block;background:#162b37}.asset-applications article>div{padding:24px 0 0}.asset-applications h3{font-size:23px;margin-bottom:10px}.asset-applications p{color:var(--muted);font-size:15px;margin:0;max-width:520px}
.installation{background:white;border-bottom:1px solid var(--line)}.layout-details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:30px 0}.layout-details>summary,.buyer-questions summary{cursor:pointer;list-style:none;position:relative;padding:20px 36px 20px 0;font-size:16px;line-height:1.5}.layout-details>summary::-webkit-details-marker,.buyer-questions summary::-webkit-details-marker{display:none}.layout-details>summary:after,.buyer-questions summary:after{content:'+';position:absolute;right:3px;top:16px;font-size:24px;color:var(--accent);font-weight:400}.layout-details[open]>summary:after,.buyer-questions details[open]>summary:after{content:'−'}.asset-layout{max-width:880px;margin:0 auto 26px}.asset-layout img{display:block;width:100%;max-height:520px;object-fit:contain;background:#071522}.installation-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:30px;margin-top:35px}.step-number{display:block;font-size:12px;letter-spacing:.08em;color:#778c96;margin-bottom:15px}.installation-steps h3{font-size:19px}.installation-steps p{font-size:14px;color:var(--muted);margin:0}.overseas-note{display:grid;grid-template-columns:1fr 1.5fr;gap:6%;padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:35px}.overseas-note h3{font-size:19px;margin:0}.overseas-note p{color:var(--muted);font-size:14px;margin:0}.buyer-questions{margin-top:25px}.buyer-questions details{border-bottom:1px solid var(--line)}.buyer-questions p{font-size:14px;color:var(--muted);max-width:900px;margin:0 0 24px;line-height:1.8}.company{background:#fff;padding-top:64px;padding-bottom:64px}.company-copy{max-width:900px}.company-copy .eyebrow{display:none}.company-copy p:not(.eyebrow){font-size:16px;color:var(--muted)}.company-copy .company-secondary{font-size:14px;margin-bottom:0}
.pilot{background:var(--paper);display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:9%;align-items:start;border-top:1px solid var(--line)}.pilot>div>p:not(.eyebrow){color:var(--muted);font-size:16px;max-width:460px}.direct-contacts{margin:30px 0}.direct-contacts a{display:block;padding:16px 0;border-bottom:1px solid var(--line)}.direct-contacts span{display:block;color:var(--muted);font-size:12px;margin-bottom:7px}.direct-contacts strong{font-size:clamp(16px,1.65vw,23px);font-weight:500;overflow-wrap:anywhere;line-height:1.6}.direct-contacts a:hover strong{color:#34718c}.pilot>div>.legal-identity{font-size:12px;line-height:1.8;margin-top:25px}form{background:#fff;border:1px solid var(--line);padding:30px;min-width:0}form h3{font-size:24px}.form-note{font-size:12px;color:var(--muted);line-height:1.7;margin-bottom:25px}label{display:flex;flex-direction:column;gap:8px;margin-bottom:17px}label>span{font-size:13px;color:#3c515d}input,select,textarea{width:100%;min-height:45px;border:1px solid #bfcbd0;border-radius:0;padding:10px 11px;color:var(--ink);background:#fff;font-size:16px}textarea{resize:vertical;min-height:96px}.form-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:15px}.enquiry-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}.enquiry-actions .button{padding:13px 10px}.copy-enquiry{display:block;width:100%;min-height:44px;padding:11px;background:white;border:1px solid #b5c5cb;color:var(--accent);font-size:14px;margin-top:12px}.copy-enquiry:hover{background:#eaf0f2}#copy-fallback{margin-top:18px}#enquiry-text{min-height:190px}.fallback-note{margin:16px 0 0}#form-status{font-size:13px;line-height:1.7;color:var(--accent);margin:15px 0 0}#form-status:empty{display:none}footer{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:35px max(5vw,24px);border-top:1px solid var(--line)}footer p,footer>span{font-size:12px;color:var(--muted);line-height:1.7;margin:0}footer>span{max-width:230px}
html[lang=zh-CN]{font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif}html[lang=zh-CN] h1,html[lang=zh-CN] h2,html[lang=zh-CN] h3{letter-spacing:0;font-weight:500;line-height:1.45}html[lang=zh-CN] h1{font-size:clamp(38px,4vw,56px)}html[lang=zh-CN] h2{font-size:clamp(28px,2.9vw,39px)}html[lang=zh-CN] .hero-copy{line-height:1.9}html[lang=zh-CN] .eyebrow{letter-spacing:.06em;font-size:12px}html[lang=zh-CN] .brand-wordmark{font-family:Arial,sans-serif}
@media(min-width:1600px){.section{padding-left:max(7vw,calc((100vw - 1320px)/2));padding-right:max(7vw,calc((100vw - 1320px)/2))}.hero{padding-left:40px;padding-right:40px}.value-strip{padding-left:calc((100vw - 1320px)/2);padding-right:calc((100vw - 1320px)/2)}}
@media(max-width:1100px){header{gap:16px;padding-left:4vw;padding-right:4vw}nav{gap:15px;font-size:12px}.brand-wordmark{font-size:15px}.brand-wordmark small{font-size:8px}.header-actions{gap:13px}.button.small{font-size:12px;padding:11px 12px}.hero{gap:5%;min-height:480px;padding-top:48px;padding-bottom:48px}.hero-image{height:385px}h1{font-size:46px}.section{padding:64px 6vw}.asset-benefits{gap:24px}.installation-steps{gap:23px}.pilot{gap:6%}form{padding:24px}footer{flex-wrap:wrap}}
@media(max-width:800px){header{flex-wrap:wrap;padding:17px 5vw 0;gap:0 12px;min-height:82px}.header-actions{margin-left:auto}.brand-wordmark{font-size:16px}header nav{order:3;flex:0 0 100%;width:100%;min-width:0;overflow-x:auto;white-space:nowrap;gap:24px;margin-top:14px;border-top:1px solid var(--line);padding:3px 0 5px;scrollbar-width:thin}header nav a{display:flex;align-items:center;min-height:44px;font-size:13px;flex:none}header nav a:focus-visible{outline-offset:-3px}.hero{grid-template-columns:1fr;grid-template-areas:"copy" "photo";gap:30px;padding:40px 6vw}.hero-content{max-width:600px}.hero-image{height:auto;aspect-ratio:16/10}.hero h1{font-size:48px;max-width:520px}.hero-copy{max-width:550px}.value-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:20px 6vw}.value-strip span{text-align:left;font-size:12px}.section-heading{grid-template-columns:1fr;gap:0;margin-bottom:28px}.section-heading h2{margin-bottom:18px}.section-heading>p:last-child{max-width:650px}.asset-benefits{grid-template-columns:1fr;gap:23px}.asset-benefits article{padding-top:18px}.asset-benefits h3{margin-bottom:8px}.installation-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.overseas-note{grid-template-columns:1fr;gap:13px}.pilot{grid-template-columns:1fr;gap:30px}.direct-contacts{margin:20px 0}.direct-contacts strong{font-size:22px}.pilot form{width:100%;max-width:650px}.section{padding:56px 6vw}.company{padding-top:45px;padding-bottom:45px}footer p{order:3;width:100%}}
@media(max-width:540px){.brand{gap:8px}.brand-wordmark{font-size:13px;letter-spacing:.055em}.brand-wordmark small{font-size:7px;letter-spacing:.09em}.logo-window{width:39px;height:28px;flex-basis:39px}.logo-window img{width:100px;height:100px;left:-31px;top:-31px}.header-actions{gap:12px}.header-actions button{font-size:12px}.button.small{max-width:100px;text-align:center;padding:9px;font-size:11px}.hero h1{font-size:42px}.hero-copy{font-size:16px}.hero .eyebrow{margin-bottom:16px}.hero-cta{gap:15px 20px}.hero-cta .button{padding:13px 17px}.text-link{font-size:13px}.hero-image{aspect-ratio:4/3}.asset-applications{grid-template-columns:1fr;gap:30px}.asset-applications article>div{padding-top:18px}.asset-applications h3{font-size:22px}.installation-steps{grid-template-columns:1fr;gap:23px}.installation-steps article{display:grid;grid-template-columns:28px minmax(0,1fr);column-gap:15px}.step-number{grid-column:1;grid-row:1/3;padding-top:6px;margin:0}.installation-steps h3,.installation-steps p{grid-column:2}.installation-steps h3{margin-bottom:8px}.form-grid{grid-template-columns:1fr;gap:0}form{padding:24px 19px}.enquiry-actions{grid-template-columns:1fr}.section-heading>p:last-child{font-size:15px}.direct-contacts strong{font-size:19px}footer{padding:28px 6vw;gap:20px}footer>span{max-width:none}html[lang=zh-CN] h1{font-size:37px}html[lang=zh-CN] h2{font-size:28px}}
@media(max-width:370px){header{padding-left:4vw;padding-right:4vw;column-gap:8px}.header-actions{gap:8px}.button.small{max-width:85px;font-size:10px}.brand-wordmark{font-size:12px}.hero h1{font-size:38px}html[lang=zh-CN] h1{font-size:33px}.hero-cta{gap:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* Original full-width hero composition, with real ocean footage. */
.video-hero{position:relative;isolation:isolate;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;width:100%;max-width:none;min-height:690px;margin:0;padding:76px max(7vw,24px) 100px;overflow:hidden;background:#102331;color:#fff}
.video-hero .hero-image{position:absolute;inset:0;z-index:-2;grid-area:auto;width:100%;height:100%;aspect-ratio:auto;background:#102331 url('assets/sv360-20261012/images/harbor-operation.jpg') center/cover no-repeat}
.video-hero .hero-image video{display:block;width:100%;height:100%;object-fit:cover;object-position:center;pointer-events:none}
.video-hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(5,20,30,.84),rgba(5,20,30,.59) 37%,rgba(5,20,30,.13) 76%),linear-gradient(0deg,rgba(5,20,30,.35),transparent 45%);pointer-events:none}
.video-hero .hero-content{width:100%;max-width:530px;grid-area:auto}
.video-hero h1{font-size:clamp(46px,4.8vw,72px);line-height:1.07;letter-spacing:-.045em;margin-bottom:26px}
.video-hero .eyebrow{color:#bce3df}.video-hero .hero-copy{color:#e1eaee;font-size:17px;max-width:430px}
.video-hero .button{background:#a2ded6;border-color:#a2ded6;color:#102b36}.video-hero .button:hover{background:#c5eee8}.video-hero .text-link{color:white;border-color:#adc1cb}
.hero-video-toggle{position:absolute;right:max(4vw,24px);bottom:23px;min-height:40px;padding:10px 14px;background:rgba(8,26,36,.58);color:#fff;border:1px solid rgba(255,255,255,.45);font-size:12px;line-height:1.5}.hero-video-toggle:hover{background:rgba(8,26,36,.85)}
html[lang=zh-CN] .video-hero h1{font-size:clamp(40px,4.8vw,68px);line-height:1.35;letter-spacing:0}html[lang=zh-CN] .video-hero .hero-copy{line-height:1.9}
@media(min-width:1600px){.video-hero{min-height:750px;padding-left:max(7vw,calc((100vw - 1320px)/2));padding-right:max(7vw,calc((100vw - 1320px)/2))}}
@media(max-width:800px){.video-hero{min-height:640px;padding:65px 6vw 92px;gap:0}.video-hero h1{font-size:54px;max-width:480px}.video-hero .hero-content{max-width:510px}.video-hero:after{background:linear-gradient(90deg,rgba(5,20,30,.83),rgba(5,20,30,.5) 65%,rgba(5,20,30,.2))}.video-hero .hero-copy{max-width:430px}.hero-video-toggle{right:6vw}}
@media(max-width:540px){.video-hero{min-height:600px;padding-top:48px;padding-bottom:92px}.video-hero h1{font-size:46px}.video-hero .hero-copy{font-size:16px;max-width:350px}.video-hero .hero-image video{object-position:51% center}.video-hero .hero-cta{gap:16px 22px}html[lang=zh-CN] .video-hero h1{font-size:40px}}
@media(max-width:370px){.video-hero h1{font-size:42px}html[lang=zh-CN] .video-hero h1{font-size:35px}}

/* Keep the original wheelhouse foreground; real footage is visible through its windows. */
.video-hero .hero-image{background-image:url('assets/sv360-20261012/images/hero-helm-concept.webp');overflow:hidden}
.hero-clip-defs{position:absolute;pointer-events:none}
.hero-helm-stage{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:100%;height:100%}
.hero-helm-photo{position:absolute;inset:0;display:block;width:100%;height:100%;max-width:none;object-fit:fill}
.hero-window-motion{position:absolute;inset:0;clip-path:url(#hero-window-clip);overflow:hidden}
.video-hero .hero-window-motion video{width:100%;height:62%;object-fit:cover;object-position:center;filter:brightness(.86) saturate(.72)}
.video-hero:after{background:linear-gradient(90deg,rgba(4,17,27,.92),rgba(4,17,27,.80) 28%,rgba(4,17,27,.18) 51%,transparent 72%),linear-gradient(0deg,rgba(4,17,27,.35),transparent 32%)}
.video-hero .hero-content{max-width:470px;width:41%}.video-hero h1{font-size:clamp(44px,4.4vw,67px)}html[lang=zh-CN] .video-hero h1{font-size:clamp(40px,4.1vw,62px)}
@media(max-width:1000px) and (min-width:801px){.video-hero .hero-content{width:43%}.video-hero h1{font-size:43px}.video-hero .hero-copy{font-size:16px}.video-hero .hero-cta{gap:14px}}
@media(max-width:800px){.video-hero{display:block;min-height:0;padding:0;background:#081824}.video-hero .hero-image{position:relative;inset:auto;height:auto;aspect-ratio:1672/941;width:100%;z-index:0}.video-hero:after{display:none}.video-hero .hero-content{width:100%;max-width:none;padding:32px 6vw 40px}.video-hero h1{font-size:46px}.video-hero .hero-copy{max-width:550px}.hero-video-toggle{top:14px;bottom:auto;right:14px;font-size:11px;min-height:35px;padding:7px 10px}html[lang=zh-CN] .video-hero h1{font-size:40px}}
@media(max-width:370px){.video-hero h1{font-size:41px}html[lang=zh-CN] .video-hero h1{font-size:35px}}