@font-face{font-family:"DM Sans";font-style:normal;font-weight:400 700;font-display:swap;src:url(/assets/dm-sans-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{--bg:#fff;--page:#f6f5f2;--soft:#fbfaf7;--line:#e9e6df;--text:#1d2433;--muted:#5d6475;--brand:#ff6900;--brand-d:#b34700;--brand-soft:#fff1e6;--navy:#2b3650;--navy-2:#3c4a6b;--link:#b34700;--note:#eef5ff;--note-line:#a9c8ef;--warn:#fff5e8;--warn-line:#f2b46e;--code:#f3f1ec;--shadow:0 1px 2px rgba(29,36,51,.05),0 4px 16px rgba(29,36,51,.06)}
@media (prefers-color-scheme:dark){:root{--bg:#171a21;--page:#12141a;--soft:#1c2029;--line:#2c313d;--text:#e9ebf0;--muted:#a4abba;--brand:#ff7a1a;--brand-d:#ff9a4d;--brand-soft:#33210f;--link:#ffa35f;--note:#162436;--note-line:#2f5784;--warn:#33240f;--warn-line:#8a5a1d;--code:#242833;--shadow:none}.brand img,.foot img{filter:brightness(0) invert(1)}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--page);color:var(--text);font:16.5px/1.7 "DM Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--link);text-decoration:none}
a:hover{color:var(--brand)}
img{max-width:100%;height:auto}
.wrap{max-width:1280px;margin:0 auto;padding:0 16px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;background:var(--bg);padding:8px;z-index:9}
.ic{width:20px;height:20px;flex:none;stroke-width:1.9}.ic.sm{width:15px;height:15px}.ic.big{width:44px;height:44px;stroke-width:1.5;color:var(--brand)}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:4px}

/* header */
.top{background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top .wrap{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;white-space:nowrap}
.brand img{width:144px;height:auto;display:block}
.brand span{border-left:1px solid var(--line);padding-left:10px;color:var(--muted);font-weight:600}
.topnav{display:flex;gap:22px;font-weight:600;font-size:15px}.topnav a{color:var(--text)}.topnav a:hover{color:var(--brand)}
.cta{margin-left:auto;display:flex;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--brand-d);color:#fff;font-weight:700;font-size:14px;padding:9px 18px;border-radius:999px;white-space:nowrap}
.btn:hover{background:var(--brand);color:#fff}
.btn.ghost{background:transparent;color:var(--brand-d);box-shadow:inset 0 0 0 1.5px var(--brand-d)}.btn.ghost:hover{background:var(--brand-soft);color:var(--brand-d)}
.search{position:relative;display:flex;align-items:center}
.search .s{position:absolute;left:14px;color:var(--muted);pointer-events:none}
.search input{width:100%;font:inherit;font-size:16px;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:9px 16px 9px 42px;outline:none}
.search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.search.mini{flex:0 1 280px;margin-left:auto}.search.mini+.cta{margin-left:0}
.search button{position:absolute;right:6px;font:inherit;font-weight:700;font-size:15px;border:0;border-radius:999px;background:var(--brand);color:#fff;padding:9px 22px;cursor:pointer}
.search button:hover{background:var(--brand-d)}

/* hero */
.hero{background:radial-gradient(900px 420px at 92% 10%,rgba(255,105,0,.55),transparent 60%),radial-gradient(600px 300px at 70% 120%,rgba(255,196,0,.35),transparent 60%),linear-gradient(120deg,var(--navy),var(--navy-2));color:#fff;padding:64px 0 56px}
.hero h1{font-size:clamp(32px,5.4vw,52px);line-height:1.1;margin:0 0 10px;letter-spacing:-.02em;color:#fff}
.hero .lead{color:rgba(255,255,255,.85);font-size:19px;margin:0}
.search.big{max-width:640px;margin-top:26px}
.search.big input{padding:16px 130px 16px 46px;border:0;box-shadow:0 8px 30px rgba(0,0,0,.18);font-size:17px}
.search.big .s{left:16px}
.popular{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:20px 0 0;font-size:14px}
.popular span{color:rgba(255,255,255,.75);margin-right:2px}
.popular a{color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:4px 12px;border-radius:999px}
.popular a:hover{background:rgba(255,255,255,.22);color:#fff}

main{padding-top:28px;padding-bottom:56px;min-height:50vh}
h1{font-size:clamp(28px,4.4vw,40px);line-height:1.18;margin:0 0 10px;letter-spacing:-.015em}
h2{font-size:24px;line-height:1.3;margin:40px 0 12px;letter-spacing:-.01em}
h3{font-size:19px;line-height:1.4;margin:28px 0 8px}
.lead{font-size:18px;color:var(--muted);margin:0}
.sec{font-size:22px;margin:16px 0 18px}
.sicon{display:none;color:var(--text);margin-left:auto;padding:6px}

/* home topics */
.areas{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.area{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:20px 22px 18px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.area-h{display:flex;gap:14px;align-items:center;color:var(--text);padding-bottom:14px;margin-bottom:6px;border-bottom:2px solid var(--brand-soft)}
.area-h h3{margin:0;font-size:18px}.area-h small{color:var(--muted);font-size:13px}
.area-h:hover h3{color:var(--brand)}
.tile{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand-d);flex:none}
.area ul{list-style:none;margin:0 0 10px;padding:0;flex:1}
.area li a{display:block;color:var(--text);font-size:15px;padding:7px 0;border-bottom:1px solid var(--line);line-height:1.45}
.area li:last-child a{border-bottom:0}
.area li a:hover{color:var(--brand)}
.more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-d)}

/* breadcrumbs */
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:2px;margin:0 0 18px;padding:0;font-size:14px;color:var(--muted)}
.crumbs li+li::before{content:"/";margin:0 8px;color:var(--line)}
.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--brand)}

/* category hub */
.hub{display:flex;gap:18px;align-items:flex-start;margin-bottom:26px}
.hub .tile{width:60px;height:60px;border-radius:16px}.hub .tile .ic{width:28px;height:28px}
.hub .lead{max-width:780px}
.hub .count{margin:8px 0 0;font-size:14px;color:var(--muted)}
.list{list-style:none;margin:0;padding:0;background:var(--bg);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}
.list li+li{border-top:1px solid var(--line)}
.list a{display:flex;gap:14px;align-items:flex-start;padding:16px 20px;color:var(--text)}
.list a:hover{background:var(--soft)}.list a:hover strong{color:var(--brand)}
.list .ic{color:var(--brand-d);margin-top:3px}
.list span{flex:1;min-width:0}.list strong{display:block;font-size:16.5px}.list small{display:block;color:var(--muted);font-size:14.5px;line-height:1.5;margin-top:2px}
.list .go,.rel .go{color:var(--muted);align-self:center}

/* guide page: categories | article | on this page */
.doc{display:grid;grid-template-columns:250px minmax(0,1fr) 220px;gap:36px;align-items:start}
.side,.toc{position:sticky;top:92px;max-height:calc(100vh - 110px);overflow:auto;font-size:14.5px}
.side-h{display:flex;gap:8px;align-items:center;font-weight:700;margin:0 0 8px}.side-h .ic{color:var(--brand-d)}.side-h a{color:var(--text)}
.side ul{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.side li a{display:block;padding:5px 0 5px 14px;margin-left:-2px;border-left:2px solid transparent;color:var(--muted);line-height:1.45}
.side li a:hover{color:var(--text)}
.side li a[aria-current]{color:var(--brand-d);border-left-color:var(--brand);font-weight:600}
.body{min-width:0}
.guide{background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:36px 44px 40px;box-shadow:var(--shadow)}
.guide-h{padding-bottom:20px;margin-bottom:8px;border-bottom:1px solid var(--line)}
.pill{display:inline-flex;align-items:center;gap:6px;background:var(--brand-soft);color:var(--brand-d);font-size:13px;font-weight:700;padding:4px 12px;border-radius:999px;margin-bottom:14px}
.pill .ic{width:15px;height:15px}
.guide .meta{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);margin:6px 0 0}
.content{font-size:17px}
.content a{text-decoration:underline;text-decoration-color:rgba(179,71,0,.35);text-underline-offset:3px}
.content a:hover{text-decoration-color:currentColor}
.content>p:first-child{font-size:18.5px;color:var(--muted)}
.content h2{padding-top:8px}
.content :is(h2,h3){scroll-margin-top:90px}
.content ul{padding-left:22px}
.content li{margin:6px 0}
.content li::marker{color:var(--brand)}
/* numbered steps: orange counters */
.content ol{list-style:none;counter-reset:step;padding-left:0}
.content ol>li{counter-increment:step;position:relative;padding-left:44px;margin:14px 0}
.content ol>li::before{content:counter(step);position:absolute;left:0;top:1px;width:28px;height:28px;border-radius:50%;background:var(--brand-soft);color:var(--brand-d);font-weight:700;font-size:14px;display:grid;place-items:center}
.content ol ol>li::before{background:transparent;box-shadow:inset 0 0 0 1.5px var(--brand-soft)}
.content strong{font-weight:700}
.content code{background:var(--code);padding:1px 6px;border-radius:5px;font-size:.9em}
.content img{border:1px solid var(--line);border-radius:12px;margin:8px 0}
.table{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:12px}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{padding:10px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
tr:last-child td{border-bottom:0}
th{background:var(--soft);font-weight:700}
blockquote{margin:18px 0;padding:12px 18px;border-left:4px solid var(--brand);background:var(--soft);border-radius:0 10px 10px 0;color:var(--muted)}
.notice{border:1px solid;border-left-width:4px;border-radius:10px;padding:12px 16px;margin:18px 0;font-size:15px}
.notice p{margin:2px 0 0}.notice.note{background:var(--note);border-color:var(--note-line)}.notice.warn{background:var(--warn);border-color:var(--warn-line)}
.toc p{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:4px 0 10px}
.toc ol{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.toc li a{display:block;padding:4px 0 4px 12px;color:var(--muted);line-height:1.4}
.toc li a:hover{color:var(--brand-d)}
.toc-m{display:none}
.related{margin-top:28px}
.related h2{font-size:20px;margin:0 0 12px}
.rel{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.rel a{display:flex;gap:12px;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:14px 16px;color:var(--text);font-weight:600;font-size:15px;line-height:1.4;height:100%}
.rel a:hover{border-color:var(--brand)}.rel a>.ic:first-child{color:var(--brand-d)}.rel span{flex:1}

/* support panel + footer */
.help-cta .panel{display:flex;gap:20px;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:24px 28px;margin-bottom:48px;box-shadow:var(--shadow)}
.help-cta h2{margin:0;font-size:20px}.help-cta p{margin:2px 0 0;color:var(--muted)}
.help-cta .btn{margin-left:auto;padding:12px 22px;font-size:15px}
.foot{background:var(--navy);color:rgba(255,255,255,.8);font-size:14.5px;padding:32px 0}
.foot img{filter:brightness(0) invert(1);display:block;margin-bottom:12px}
.foot nav{display:flex;flex-wrap:wrap;gap:8px 22px;margin:0 0 10px}.foot a{color:#fff}.foot a:hover{color:var(--brand)}
.foot .small{font-size:13px;color:rgba(255,255,255,.6);margin:0}

/* search page, 404 */
.searchpage{max-width:860px}
.searchpage mark{background:var(--brand-soft);color:var(--brand-d);border-radius:3px;padding:0 2px}
.searchpage .pagefind-ui__result-link{color:var(--text);font-weight:700}
.searchpage .pagefind-ui__result-link:hover{color:var(--brand)}
#search{margin-top:16px;--pagefind-ui-primary:var(--brand-d);--pagefind-ui-text:var(--text);--pagefind-ui-background:var(--bg);--pagefind-ui-border:var(--line);--pagefind-ui-tag:var(--brand-soft);--pagefind-ui-border-radius:12px;--pagefind-ui-font:inherit}
.topics{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin-top:24px}
.topics a{display:block;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:7px 16px;color:var(--text);font-weight:600}
.topics a:hover{border-color:var(--brand);color:var(--brand-d)}
main>.search.big{margin:24px 0}
main>.search.big input{box-shadow:var(--shadow);border:1px solid var(--line);padding-left:20px}

/* responsive */
@media (max-width:1180px){.doc{grid-template-columns:230px minmax(0,1fr)}.toc{display:none}.toc-m{display:block;background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:10px 16px;margin:18px 0 0;font-size:15px}.toc-m summary{cursor:pointer;font-weight:700}.toc-m ol{margin:8px 0 2px;padding-left:20px}.toc-m li{margin:3px 0}}
@media (max-width:900px){.topnav{display:none}.doc{grid-template-columns:minmax(0,1fr)}.side{display:none}.guide{padding:24px 20px 28px;border-radius:14px}}
@media (max-width:640px){body{font-size:16px}.content{font-size:16.5px}.top .wrap{height:60px;gap:12px}.brand span,.search.mini,.btn.ghost{display:none}.sicon{display:block}.cta{margin-left:0}.hero{padding:40px 0 36px}.search.big input{padding-right:16px}.search.big button{display:none}.hub .tile{display:none}.help-cta .panel{flex-direction:column;align-items:flex-start;padding:20px}.help-cta .btn{margin-left:0}.guide{border-radius:0;border-left:0;border-right:0;margin:0 -16px;box-shadow:none}}