@charset "UTF-8";
:root{--slate:#283846;--orange:#f1a056;--paper:#f4f6f7;--ink:#1f2b33;--muted:#697780;--line:#d7dee2;--shell:min(1180px,calc(100% - 40px))}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;background:var(--paper);color:var(--ink)}img{display:block;max-width:100%}a{text-decoration:none;color:inherit}.shell{width:var(--shell);margin:auto}
.header{background:#1f2b34;color:#fff}.header-grid{height:68px;display:grid;grid-template-columns:190px 1fr auto;gap:24px;align-items:center}.brand img{max-height:36px;width:auto}.install-progress{display:grid;grid-template-columns:auto 50px auto 50px auto;gap:10px;justify-content:center;align-items:center;font-size:8px;letter-spacing:.12em;color:#6e7c87}.install-progress .active{color:#f1a056}.install-progress i{height:1px;background:#42505b}.header-cta{background:var(--orange);color:#23160e;padding:11px 16px;font-size:12px;font-weight:900}
.hero{padding:62px 0;background:#e7ecef}.hero-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center;min-height:570px}.eyebrow,.section-title span,.pre-grid>div>span,.work-grid>div>span,.faq-title span{display:block;font-size:9px;letter-spacing:.16em;color:#b2672d;font-weight:900;margin-bottom:13px}.hero h1{font-size:clamp(58px,7vw,94px);line-height:.9;letter-spacing:-.06em;margin:18px 0 22px}.lead{font-size:17px;line-height:1.85;color:#4b5e6b}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}.primary,.secondary{font-size:12px;font-weight:900}.primary{background:var(--slate);color:#fff;padding:14px 18px}.secondary{background:#fff;border:1px solid #c6d0d6;padding:13px 18px}
.installer-window{margin:0;background:#11181d;border:1px solid #36434d;min-height:490px;padding:52px 24px 48px;display:grid;place-items:center;position:relative}.window-bar,.window-footer{position:absolute;left:0;right:0;display:flex;justify-content:space-between;align-items:center;padding:0 13px;font-size:8px;color:#74828c}.window-bar{top:0;height:36px;border-bottom:1px solid #2f3a43}.window-footer{bottom:0;height:38px;border-top:1px solid #2f3a43}.window-footer b{color:#c68550}.installer-window img{max-height:390px;max-width:96%;object-fit:contain}
.preview{padding:72px 0 92px;background:#fff}.section-title{max-width:850px;margin-bottom:32px}.section-title h2,.pre-grid h2,.work-grid h2,.faq-title h2,.if-copy h2{font-size:clamp(34px,4vw,52px);line-height:1.08;letter-spacing:-.045em;margin:0}.section-title p{font-size:13px;line-height:1.8;color:var(--muted)}.preview-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:12px}.preview-grid figure{margin:0;background:#eef1f3;border:1px solid var(--line);min-height:400px;padding:18px;display:flex;flex-direction:column}.preview-grid img{height:300px;object-fit:contain}.preview-grid .wide img{height:320px}.preview-grid figcaption{margin-top:auto;border-top:1px solid var(--line);padding-top:10px;font-size:10px;color:#6c7981}
.precheck{padding:88px 0;background:#dfe5e8}.pre-grid{display:grid;grid-template-columns:330px 1fr;gap:80px}.pre-grid>div>p{font-size:13px;line-height:1.85;color:var(--muted)}.check-table{border-top:2px solid var(--slate)}.check-table>div{display:grid;grid-template-columns:50px 100px 1fr;gap:15px;padding:14px 0;border-bottom:1px solid #c9d2d7;font-size:12px}.check-table b{font-size:9px;color:#a9612d}.check-table span{color:#6e7a81}
.steps{padding:92px 0;background:#fff}.step-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.step-grid article{background:#f1f3f4;border:1px solid var(--line);min-height:260px;padding:20px;display:flex;flex-direction:column}.step-grid article:nth-child(4){background:#faeadb}.code{font-size:30px;font-weight:900;color:#bbc4c9}.step-grid span{font-size:8px;letter-spacing:.13em;color:#b2672d;margin-top:25px}.step-grid h3{font-size:18px;margin:14px 0 8px}.step-grid p{font-size:12px;line-height:1.7;color:var(--muted);margin:0}
.desktop-work{padding:92px 0;background:#263640;color:#fff}.work-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:center}.work-grid figure{margin:0;background:#11191e;min-height:500px;padding:28px;display:grid;place-items:center;position:relative}.work-grid figure img{max-height:410px;max-width:96%;object-fit:contain}.work-grid figcaption{position:absolute;left:15px;bottom:12px;color:#76858e;font-size:10px}.work-grid h2{color:#fff}.work-grid p{font-size:13px;line-height:1.85;color:#bbc8cf}.work-grid ul{list-style:none;padding:0;margin:25px 0;border-top:1px solid #4b5962}.work-grid li{padding:11px 0;border-bottom:1px solid #4b5962;font-size:12px}
.faq-section{padding:92px 0;background:#fff}.faq-grid{display:grid;grid-template-columns:320px 1fr;gap:85px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{list-style:none;cursor:pointer;padding:22px 46px 22px 0;font-weight:900;position:relative}summary::after{content:"+";position:absolute;right:4px;top:16px;color:#b2672d;font-size:24px}details[open] summary::after{content:"−"}details p{margin:0 0 22px;font-size:13px;line-height:1.8;color:var(--muted)}
.installer-footer{background:#10171c;color:#fff;padding:38px 0 84px}.if-window{border:1px solid #303c44}.if-head{height:42px;border-bottom:1px solid #303c44;display:flex;justify-content:space-between;align-items:center;padding:0 14px;font-size:8px;color:#66747e}.if-body{min-height:180px;padding:28px;display:grid;grid-template-columns:1fr auto;gap:50px;align-items:center}.if-copy b{font-size:9px;color:var(--orange)}.if-copy h2{color:#fff;max-width:720px;margin-top:10px}.if-actions{display:flex;gap:10px;flex-direction:column}.if-actions a{padding:12px 15px;font-size:10px;font-weight:900;text-align:center}.if-actions a:first-child{background:var(--orange);color:#24170e}.if-actions a:last-child{border:1px solid #3a4650;color:#a8b1b8}.if-bottom{height:70px;border-top:1px solid #303c44;display:grid;grid-template-columns:180px 1fr auto;gap:30px;align-items:center;padding:0 14px}.if-bottom img{max-height:32px;width:auto}.if-bottom span,.if-bottom a{font-size:9px;color:#6f7d86}.mobile-bar{display:none}
@media(max-width:980px){.hero-grid,.pre-grid,.work-grid,.faq-grid{grid-template-columns:1fr}.step-grid{grid-template-columns:1fr 1fr 1fr}}
@media(max-width:760px){:root{--shell:min(100% - 28px,1180px)}body{padding-bottom:64px}.install-progress,.header-cta{display:none}.header-grid{grid-template-columns:1fr;height:62px}.hero{padding:46px 0}.hero h1{font-size:50px}.installer-window{min-height:390px}.installer-window img{max-height:300px}.preview,.precheck,.steps,.desktop-work,.faq-section{padding:66px 0}.preview-grid{display:flex;overflow:auto}.preview-grid figure{min-width:82%;min-height:380px}.preview-grid img,.preview-grid .wide img{height:285px}.step-grid{display:flex;overflow:auto}.step-grid article{min-width:72%}.work-grid figure{min-height:390px}.if-body{grid-template-columns:1fr}.if-actions{align-items:flex-start}.if-bottom{grid-template-columns:1fr;height:auto;padding:22px 14px}.mobile-bar{position:fixed;left:0;right:0;bottom:0;height:62px;background:#10171c;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 14px;z-index:50}.mobile-bar span{display:flex;flex-direction:column}.mobile-bar b{font-size:12px}.mobile-bar small{font-size:9px;color:#75838c}.mobile-bar a{background:var(--orange);color:#24170e;padding:9px 16px;font-size:12px;font-weight:900}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}