:root{--navy:#182331;--blue:#2f6f9c;--sky:#dcecf4;--bg:#f4f2ed;--paper:#fff;--ink:#1b2732;--muted:#68737d;--line:#d6d9da;--yellow:#f2c94c}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}.manual-wrap,.shell{width:min(1220px,calc(100% - 44px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:10px;z-index:99}.manual-header{height:72px;background:var(--navy);color:#fff;position:sticky;top:0;z-index:20}.manual-head{height:100%;display:flex;align-items:center;justify-content:space-between}.manual-logo{display:flex;align-items:center;gap:11px}.manual-logo>span{width:38px;height:38px;border:2px solid #fff;display:grid;place-items:center;font-weight:800}.manual-logo b{font-size:19px}.manual-logo small{display:block;color:#a8bac7;font-size:10px;letter-spacing:.08em}.manual-header nav{display:flex;height:100%}.manual-header nav a{display:flex;align-items:center;padding:0 13px;border-top:4px solid transparent;font-size:13px}.manual-header nav a:hover,.manual-header nav a.active{background:#243547;border-color:var(--yellow)}.nav-toggle{display:none;background:transparent;color:#fff;border:1px solid #8da1b1;padding:8px 12px}.manual-home{display:grid;grid-template-columns:260px 1fr;min-height:750px}.manual-chapters{background:#e5e7e6;border-left:1px solid var(--line);border-right:1px solid var(--line);padding:34px 24px;position:sticky;top:72px;height:calc(100vh - 72px)}.manual-chapters>span,.manual-intro>span,.manual-task-list header>span{font:700 10px ui-monospace,Consolas,monospace;color:var(--blue);letter-spacing:.12em}.manual-chapters h2{font-size:19px}.manual-chapters nav{display:grid;border-top:1px solid #bfc5c7}.manual-chapters nav a{padding:12px 5px;border-bottom:1px solid #c7cccd}.manual-chapters nav b{font:11px ui-monospace,Consolas,monospace;color:var(--blue);margin-right:10px}.manual-chapters p{font-size:12px;color:var(--muted);margin-top:25px}.manual-main{background:var(--paper);border-right:1px solid var(--line)}.manual-intro{padding:72px 70px 65px;background:linear-gradient(135deg,#fff 65%,var(--sky) 65%)}.manual-path{color:#89939a;font-size:11px;margin-bottom:35px}.manual-intro h1{font-size:clamp(46px,5.5vw,72px);line-height:1.06;margin:18px 0;letter-spacing:-.04em}.manual-intro p{max-width:690px;color:var(--muted);font-size:17px}.manual-primary{display:inline-block;background:var(--blue);color:#fff;padding:12px 20px;margin-right:18px;font-weight:700}.manual-link{color:var(--blue);font-weight:700}.manual-task-list{padding:55px 70px}.manual-task-list h2{font-size:32px}.manual-task-grid{display:grid;grid-template-columns:1fr 1fr;border-top:2px solid var(--navy);border-left:1px solid var(--line)}.manual-task-grid a{min-height:210px;padding:25px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column}.manual-task-grid a>span{display:inline-block;align-self:start;background:var(--sky);color:var(--blue);padding:3px 8px;font-size:11px}.manual-task-grid h3{font-size:21px}.manual-task-grid p{color:var(--muted)}.manual-task-grid b{margin-top:auto;color:var(--blue);font-size:13px}.manual-warning{margin:0 70px 60px;background:#fff7d7;border:1px solid #e8d790;padding:20px}.manual-footer{background:#111a25;color:#aeb8c0;padding:48px 0 18px}.manual-footer-grid{display:grid;grid-template-columns:1.2fr .7fr 1fr;gap:60px}.manual-footer b{font-size:22px;color:#fff}.manual-footer strong{display:block;color:#fff;margin-bottom:11px}.manual-footer a,.manual-footer span{display:block;margin:5px 0}.manual-footer-bottom{border-top:1px solid #34404b;margin-top:30px;padding-top:15px;font-size:11px}.page-hero{background:#fff;padding:55px 0;border-bottom:1px solid var(--line)}.crumb{display:flex;gap:8px;color:#87919a;font-size:11px}.page-hero h1{font-size:clamp(38px,5vw,58px);line-height:1.12}.page-hero p{color:var(--muted);max-width:800px}.section{padding:65px 0}.content-layout{display:grid;grid-template-columns:1fr 290px;gap:28px}.article-list{background:#fff;border:1px solid var(--line)}.article-row{display:grid;grid-template-columns:90px 1fr;padding:25px;border-bottom:1px solid var(--line)}.article-row .metric{color:var(--blue);font:11px ui-monospace,Consolas,monospace}.article-row h2{font-size:22px}.article-row p{color:var(--muted)}.sidebar{background:#e5e7e6;padding:22px}.prose{background:#fff;padding:40px}.prose h2{border-top:1px solid var(--line);padding-top:25px;margin-top:35px}.prose p{color:#46525c}.notice{background:#fff7d7;border-left:4px solid var(--yellow);padding:18px;margin:22px 0}.button{display:inline-block;background:var(--blue);color:#fff;padding:10px 16px}.download-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.download-card,.contact-item{background:#fff;border:1px solid var(--line);padding:22px}.download-card .button{margin-top:15px}.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}@media(max-width:980px){.nav-toggle{display:block}.manual-header nav{display:none;position:absolute;top:72px;left:22px;right:22px;background:var(--navy);flex-direction:column;height:auto}.manual-header nav.open{display:flex}.manual-header nav a{padding:11px}.manual-home{grid-template-columns:1fr}.manual-chapters{display:none}.content-layout{grid-template-columns:1fr}.manual-footer-grid{grid-template-columns:1fr 1fr}.manual-footer-grid>div:first-child{grid-column:1/-1}}@media(max-width:620px){.manual-wrap,.shell{width:min(100% - 28px,1220px)}.manual-logo small{display:none}.manual-intro{padding:45px 24px;background:#fff}.manual-intro h1{font-size:43px}.manual-task-list{padding:45px 24px}.manual-task-grid{grid-template-columns:1fr}.manual-warning{margin:0 24px 45px}.manual-footer-grid{grid-template-columns:1fr}.manual-footer-grid>div:first-child{grid-column:auto}.article-row{grid-template-columns:1fr}.download-grid,.contact-grid{grid-template-columns:1fr}.prose{padding:25px}}