:root{--paper:#f7f6f2;--white:#fff;--stone:#eceeea;--mist:#e8eef0;--ink:#1c3438;--text:#314346;--muted:#667476;--blue:#2b56be;--green:#497763;--clay:#aa7258;--line:#d7dedb;--radius-xs:2px;--radius-sm:4px;--radius-md:6px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}img{display:block;max-width:100%;height:auto}figure,p,h1,h2,h3{margin:0}p+p{margin-top:18px}h1,h2,h3{color:var(--ink);font-weight:650;line-height:1.4}h2{font-size:34px;letter-spacing:-1px}h3{font-size:21px}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible{outline:2px solid var(--blue);outline-offset:5px}a:hover{color:var(--blue)}::selection{background:#cbdcd8;color:var(--ink)}.wrap{width:calc(100% - 80px);margin-inline:auto}.eyebrow{display:block;font-size:11px;line-height:1.5;letter-spacing:2.1px;font-weight:650;color:var(--green)}.text-link{display:inline-flex;align-items:center;gap:18px;color:var(--ink);font-size:15px;font-weight:600;padding:5px 0;border-bottom:1px solid #aab9b5}.text-link span{color:var(--blue);transition:transform .2s}.text-link:hover span{transform:translateX(4px)}.download-btn{display:inline-flex;align-items:center;justify-content:center;gap:24px;background:var(--blue);color:white;padding:14px 25px;border-radius:var(--radius-xs);font-size:15px;font-weight:600;line-height:1.7}.download-btn:hover{background:#2048a6;color:white}.skip-link{position:fixed;left:20px;top:-80px;z-index:100;padding:10px 20px;background:white;border:2px solid var(--blue)}.skip-link:focus{top:12px}
.site-header{height:72px;background:rgba(247,246,242,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.header-inner{height:100%;max-width:1460px;display:flex;align-items:center;gap:34px}.brand{display:inline-flex;align-items:center;gap:11px;white-space:nowrap;color:var(--ink);font-size:19px;font-weight:700;line-height:1.4}.brand img{width:34px;height:34px}.primary-nav{display:flex;align-items:center;gap:24px;margin-left:auto}.primary-nav a,.header-tools a{font-size:13px;white-space:nowrap;line-height:1.5}.primary-nav a{padding:25px 0;position:relative}.primary-nav a[aria-current=page]{color:var(--blue)}.primary-nav a[aria-current=page]:after{content:"";position:absolute;left:0;right:0;bottom:15px;height:2px;background:var(--blue)}.header-tools{display:flex;gap:20px;align-items:center}.header-client{color:var(--green);border-left:1px solid var(--line);padding-left:20px}.menu-toggle,.mobile-extra{display:none}
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.task-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.task-inner{max-width:1080px;padding-block:35px 37px}.task-heading{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:22px}.task-heading h2{font-size:24px;letter-spacing:0}.task-heading p{font-size:13px;color:var(--muted)}.task-directory{display:flex;flex-wrap:wrap;column-gap:32px;row-gap:0}.task-directory a{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:16px 0;gap:10px}.task-directory a:nth-child(1){width:calc(37% - 22px)}.task-directory a:nth-child(2){width:calc(30% - 22px)}.task-directory a:nth-child(3){width:calc(33% - 20px)}.task-directory a:nth-child(4){width:calc(30% - 22px)}.task-directory a:nth-child(5){width:calc(37% - 22px)}.task-directory a:nth-child(6){width:calc(33% - 20px)}.task-directory strong{font-size:17px;font-weight:550;color:var(--ink)}.task-directory small{font-size:11px;color:var(--muted);margin-left:12px}.task-directory i{font-style:normal;color:var(--green);font-size:20px}
.download-inner{max-width:1250px;display:grid;grid-template-columns:.4fr .55fr;gap:5%;align-items:center;padding-block:102px}.download-copy h2{margin:19px 0 23px;font-size:36px}.download-copy p{font-size:15px;color:#5b6a6c}.download-copy .text-link{margin-top:23px}.download-photo{margin-top:25px;position:relative}.download-photo img{width:100%;height:360px;object-fit:cover}.download-photo figcaption{font-size:11px;color:var(--muted);padding-top:14px;border-bottom:1px solid var(--line);padding-bottom:12px}.desktop-download{margin-top:26px;display:inline-flex;background:transparent;color:var(--blue);border:1px solid #b3c3da;padding:11px 22px}.desktop-download:hover{background:var(--blue)}
.install-section{background:#eaf0ec}.install-inner{max-width:1130px;padding:70px 0 68px;position:relative}.install-inner>.eyebrow{margin-bottom:20px}.install-inner h2{font-size:39px;max-width:700px;line-height:1.45}.install-lead{max-width:680px;margin-top:23px;font-size:16px;line-height:2}.install-annotations{margin-top:35px;display:flex;flex-wrap:wrap;gap:28px;align-items:flex-start}.install-note{border-top:1px solid #b5c9be;padding-top:13px}.install-note:nth-child(1){width:28%}.install-note:nth-child(2){width:23%}.install-note:nth-child(3){width:38%;margin-left:auto}.install-note h3{font-size:15px}.install-note p{font-size:13px;color:#526961;margin-top:7px}.install-inner>.text-link{margin-top:30px}
.devices-inner{max-width:1280px;padding-block:98px}.devices-title{display:flex;justify-content:space-between;align-items:end;gap:50px;margin-bottom:30px}.devices-title h2{margin-top:16px;font-size:36px}.devices-title>p{max-width:360px;font-size:14px;color:var(--muted)}.devices-editorial{display:grid;grid-template-columns:70% 1fr;gap:40px;align-items:center}.devices-photo img{width:100%;height:390px;object-fit:cover}.devices-photo figcaption{font-size:12px;color:var(--muted);padding-top:15px}.device-side h3{font-size:22px}.device-side p{font-size:14px;margin-top:15px}.device-side .text-link{margin-top:20px}.device-change{display:flex;align-items:baseline;gap:35px;margin-top:26px;padding-top:20px;border-top:1px solid var(--line);max-width:910px}.device-change span{font-size:11px;letter-spacing:1.1px;color:var(--green);white-space:nowrap}.device-change p{font-size:13px;color:var(--muted)}
.routes-section{background:var(--stone)}.routes-inner{max-width:1150px;padding-block:72px}.routes-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:90px;align-items:center}.routes-copy h2{margin:17px 0 21px;font-size:35px}.routes-copy p{font-size:15px}.routes-copy .text-link{margin-top:23px}.route-photo{max-width:430px;justify-self:end}.route-photo img{height:300px;width:100%;object-fit:cover}.route-photo figcaption{padding-top:12px;font-size:11px;color:var(--muted)}.route-note{display:flex;gap:45px;padding-top:25px;margin-top:32px;border-top:1px solid #cad3ce;font-size:13px}.route-note b{font-weight:600;color:var(--green);white-space:nowrap}
.network-inner{max-width:1240px;padding-block:98px}.network-heading{display:flex;gap:70px;align-items:end;justify-content:space-between;margin-bottom:37px}.network-heading h2{font-size:38px;margin-top:17px}.network-heading>p{max-width:370px;font-size:15px}.network-columns{display:grid;grid-template-columns:1.28fr 1fr;gap:62px}.network-home>figure img{width:100%;height:340px;object-fit:cover}.network-home>h3,.network-mobile>h3{margin:20px 0 12px;font-size:23px}.network-home>p,.network-mobile>p{font-size:14px;color:#5a696d}.network-mobile{padding-top:52px}.network-mobile>figure img{width:100%;height:408px;object-fit:cover;object-position:50% 45%}.network-public{margin-top:35px;display:grid;grid-template-columns:42% 1fr;gap:25px;align-items:center}.network-public img{height:180px;width:100%;object-fit:cover}.network-public h3{font-size:18px}.network-public p{font-size:13px;margin-top:12px}.remote-note{margin-top:32px;border-left:2px solid var(--green);padding-left:22px}.remote-note h3{font-size:18px}.remote-note p{font-size:13px;margin-top:10px}.network-more{margin-top:33px;text-align:right}
.guide-section{background:white;border-block:1px solid var(--line)}.guide-inner{max-width:1180px;padding-block:70px 73px}.guide-heading{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:36px}.guide-heading h2{margin-top:15px}.guide-preview{display:grid;grid-template-columns:1.35fr 1fr;gap:65px}.featured-guide{display:grid;grid-template-columns:40% 1fr;gap:24px;align-items:center}.featured-guide img{width:100%;height:200px;object-fit:cover}.featured-guide h3{font-size:21px;margin:9px 0 12px}.featured-guide p{font-size:13px;color:var(--muted)}.topic{color:var(--green);font-size:11px;letter-spacing:.5px}.plain-guide{border-top:1px solid var(--line);padding-top:15px}.plain-guide+.plain-guide{margin-top:22px}.plain-guide h3{font-size:18px}.plain-guide p{font-size:13px;margin-top:9px;color:var(--muted)}
.faq-inner{max-width:1010px;padding-block:87px 95px}.faq-heading h2{margin-top:16px;font-size:36px}.faq-list{margin-top:34px}.faq-item{position:relative;border-top:1px solid var(--line);padding:23px 0 24px;margin-left:0}.faq-item:nth-child(1){max-width:780px}.faq-item:nth-child(2){max-width:900px;margin-left:auto}.faq-item:nth-child(3){max-width:710px}.faq-item:nth-child(4){max-width:840px;margin-left:auto}.faq-item:nth-child(5){max-width:930px}.faq-item:nth-child(6){max-width:760px;margin-left:auto}.faq-topic{font-size:11px;color:var(--green);display:block;margin-bottom:8px}.faq-item h3{font-size:20px}.faq-item p{font-size:14px;margin-top:12px;color:#5a696b}
.site-footer{background:#e4ebe6;border-top:1px solid #c2d0c7}.footer-inner{max-width:1280px;padding-block:47px 25px}.footer-brand-row{display:flex;align-items:center;justify-content:space-between;gap:35px}.footer-brand-row .brand{font-size:23px}.footer-brand-row .brand img{width:42px;height:42px}.footer-brand-row p{font-size:15px;color:#50685d}.footer-nav{display:flex;gap:29px;flex-wrap:wrap;margin-top:32px;padding-top:25px;border-top:1px solid #c2d0c7;font-size:13px}.copyright{margin-top:34px;text-align:center;color:#63726a;font-size:11px;line-height:1.9}.filings{display:flex;justify-content:center;flex-wrap:wrap;gap:20px;margin-top:7px}.friend-row{display:flex;gap:25px;align-items:center;flex-wrap:wrap;font-size:12px;margin-top:22px}.friend-row>span{font-size:10px;letter-spacing:1px;color:#64776a}.footer-client{background:#e8edf0}.footer-client .footer-inner{max-width:1190px}.footer-client .footer-nav{border-color:#c5d1d7}.footer-network{background:#e8ece8}.footer-network .footer-brand-row p{border-left:2px solid var(--green);padding-left:18px}.footer-editorial{background:#eeede6}.footer-editorial .footer-inner{max-width:1180px}.footer-manual{background:#f0f1ec}.footer-manual .footer-inner{max-width:1030px;padding-top:35px}.footer-manual .footer-brand-row .brand{font-size:19px}.footer-manual .footer-brand-row .brand img{width:32px;height:32px}.footer-manual .footer-brand-row p{font-size:13px}.footer-manual .footer-nav{gap:23px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:12px;color:var(--muted);padding-top:31px;line-height:1.6}.breadcrumb span[aria-hidden]{color:#a4b0ac}.page-wrap{max-width:1180px}.page-intro{padding:46px 0 38px;max-width:840px}.page-intro .eyebrow{margin-bottom:18px}.page-intro h1{font-size:44px;letter-spacing:-1.5px}.page-intro>p{margin-top:24px;max-width:770px;font-size:16px;color:#607174;line-height:1.95}.page-intro .download-btn{margin-top:25px}.page-hero img{width:100%;height:430px;object-fit:cover}.page-hero figcaption{font-size:12px;color:var(--muted);padding-top:14px}.page-content{padding:58px 0 70px}.page-content h2{font-size:29px;margin-bottom:20px}.page-content h3{font-size:21px;margin:27px 0 12px}.page-content p{font-size:15px;line-height:2;color:#4e6064}.page-content a:not(.text-link):not(.download-btn){border-bottom:1px solid #afbdb7}.content-column{max-width:815px}.prose-section+.prose-section{margin-top:42px}.editorial-note{padding:22px 27px;background:#e9efea;border-left:2px solid var(--green);margin-block:30px;font-size:14px;line-height:1.9}.editorial-note b{display:block;margin-bottom:7px;font-weight:600;color:var(--ink)}.content-split{display:grid;grid-template-columns:1.5fr 1fr;gap:80px;align-items:start}.content-aside{margin-top:14px;border-top:2px solid var(--green);padding-top:23px}.content-aside h2{font-size:22px}.content-aside p{font-size:14px}.content-aside figure{margin-top:23px}.content-aside img{width:100%;height:270px;object-fit:cover}.content-aside figcaption{font-size:11px;color:var(--muted);padding-top:12px}.related{border-top:1px solid var(--line);padding-top:28px;margin-top:48px}.related h2{font-size:19px;margin-bottom:17px}.related ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;column-gap:35px;row-gap:12px}.related li{font-size:14px;max-width:380px}.related a{border:0!important}.related a:after{content:" ↗";color:var(--green)}.check-table{width:100%;border-collapse:collapse;font-size:14px;line-height:1.9;margin-block:24px}.check-table th{text-align:left;color:var(--ink);font-weight:600;background:#eaf0eb}.check-table th,.check-table td{padding:15px 20px;border-bottom:1px solid var(--line);vertical-align:top}.check-table td:first-child{width:22%;white-space:nowrap;color:var(--ink)}
.device-page .page-wrap{max-width:1280px}.device-page .page-hero img{height:470px}.device-discussion{display:grid;grid-template-columns:1.15fr .85fr;gap:80px}.device-discussion section:nth-child(2){padding-top:70px}.device-discussion h2{font-size:28px}.route-page .page-wrap{max-width:1150px}.route-page .page-intro{max-width:700px}.route-page .route-lead{display:grid;grid-template-columns:1.4fr 1fr;gap:70px;align-items:center;padding-bottom:28px}.route-page .route-lead .page-intro{padding-bottom:15px}.route-page .route-lead img{width:100%;height:340px;object-fit:cover}.environment-block+.environment-block{margin-top:60px}.environment-block h2{margin-top:20px}.environment-block figure img{width:100%;object-fit:cover;height:340px}.environment-block p{margin-top:15px}.environment-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:65px}.environment-grid .environment-block:nth-child(2){padding-top:100px;margin:0}.environment-grid .environment-block:nth-child(2) figure img{height:410px}.public-editorial{display:grid;grid-template-columns:32% 1fr;gap:40px;margin-top:45px;align-items:center}.public-editorial img{width:100%;height:215px;object-fit:cover}.public-editorial h2{font-size:25px;margin-bottom:12px}.remote-editorial{max-width:820px;border-left:2px solid var(--green);padding-left:27px;margin-top:38px}.remote-editorial h2{font-size:25px}.support-picture{max-width:980px;margin-left:auto}.support-picture img{height:390px}.problem-list{margin-top:5px;max-width:980px}.problem-list section{display:grid;grid-template-columns:210px 1fr;gap:38px;border-top:1px solid var(--line);padding-block:26px}.problem-list h2{font-size:21px;margin:0}.problem-list p{font-size:15px}.problem-list section:nth-child(even){max-width:900px;margin-left:auto}.tip-page .page-intro{max-width:790px}.tip-image{max-width:920px;margin-top:45px}.tip-image img{width:100%;height:330px;object-fit:cover}.tip-image figcaption{font-size:12px;color:var(--muted);padding-top:13px}
.guide-start{max-width:850px;padding:5px 0 35px}.guide-start>h2,.guide-devices>h2,.guide-network>h2{font-size:23px;letter-spacing:0;margin-bottom:27px;color:var(--green)}.guide-text-entry{padding:23px 0;border-top:1px solid var(--line)}.guide-text-entry h3{margin:0 0 12px;font-size:24px}.guide-text-entry p{max-width:750px;margin:0;font-size:15px}.guide-text-entry .text-link{font-size:13px;margin-top:14px}.guide-devices{margin-top:25px}.guide-size-pair{display:grid;grid-template-columns:1.5fr 1fr;gap:65px;align-items:end}.guide-big-entry{border-bottom:1px solid var(--line);padding-bottom:23px}.guide-big-entry img{width:100%;height:300px;object-fit:cover}.guide-big-entry h3{font-size:27px;margin-top:21px}.guide-small-entry{border-left:2px solid var(--green);padding-left:25px;max-width:340px;padding-bottom:10px}.guide-small-entry h3{font-size:21px}.guide-network{margin-top:57px}.guide-last-pair{display:grid;grid-template-columns:1.15fr 1fr;gap:65px}.guide-thumbnail-entry{display:grid;grid-template-columns:34% 1fr;gap:25px;align-items:center}.guide-thumbnail-entry img{width:100%;height:190px;object-fit:cover}.guide-thumbnail-entry h3,.guide-text-only h3{font-size:21px;margin:0 0 12px}.guide-thumbnail-entry p,.guide-text-only p{font-size:14px}.guide-text-only{border-top:1px solid var(--line);padding-top:20px}.about-opening{max-width:950px;border-left:3px solid var(--green);padding:5px 0 5px 35px;font-size:22px;line-height:1.85;color:var(--ink)}.about-sections{display:grid;grid-template-columns:1.4fr 1fr;gap:80px;margin-top:46px}.about-sections h2{font-size:27px}
.manual-wrap{max-width:1060px}.manual-heading{max-width:920px;padding:44px 0 29px}.manual-heading .eyebrow{margin-bottom:16px}.manual-heading h1{font-size:39px;letter-spacing:-1px;line-height:1.5}.manual-heading .article-deck{margin-top:20px;font-size:15px;line-height:1.9;color:var(--muted);max-width:800px}.manual-cover{max-width:1000px}.manual-cover img{width:100%;height:430px;object-fit:cover}.manual-cover figcaption{font-size:11px;padding-top:12px;color:var(--muted)}.manual-body{max-width:820px;margin:44px auto 75px;font-size:16px;line-height:2.05}.manual-body>p{margin-bottom:24px}.manual-body section{margin-top:34px}.manual-body h2{font-size:27px;letter-spacing:-.5px;margin-bottom:17px}.manual-body h3{font-size:20px;margin:23px 0 10px}.manual-body p{color:#4d6063;line-height:2.05}.manual-body a{color:var(--ink);border-bottom:1px solid #afbfb8}.manual-body .editorial-note{font-size:14px}.manual-body .related{margin-top:43px}.manual-body .related h2{font-size:19px}.manual-body .related a{border:0}.article-footer-note{margin-top:35px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
.handoff-page{min-height:100vh;display:grid;place-items:center;background:var(--paper)}.handoff-panel{width:calc(100% - 48px);max-width:420px;text-align:center;padding:48px 20px}.handoff-logo{width:64px;height:64px;margin:0 auto 35px}.handoff-panel h1{font-size:27px;font-weight:600}.countdown-text{font-size:15px;margin-top:17px;color:var(--muted)}.countdown-text strong{font-weight:550;color:var(--green);font-size:22px}.progress-track{height:2px;background:#d8e0df;margin:27px 0 32px;overflow:hidden}.progress-track span{display:block;width:0;height:100%;background:var(--blue);animation:download-progress 3s linear forwards}.handoff-panel button{background:transparent;color:var(--ink);border:1px solid #b3c3bf;cursor:pointer;padding:11px 30px;font-size:14px;border-radius:var(--radius-xs)}.handoff-panel button:hover{background:var(--ink);color:white}@keyframes download-progress{to{width:100%}}
.header-client.download-btn{background:none;color:var(--green);padding:0 0 0 20px;border-radius:0;gap:0;font-size:13px;font-weight:400}.header-client.download-btn:hover{color:var(--blue)}
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