:root{--bg:#fff;--soft:#f4f7fc;--text:#14203f;--muted:#5a6784;--line:#e1e7f3;--accent:#2563eb;--navy:#0f1b3d;--tip:#eaf2ff;--warn:#fff6e5}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.65 "Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--text);background:var(--bg)}
a{color:var(--accent)}a:hover{text-decoration:none}
h1,h2,h3,.logo,.title{font-family:"Inter Display","Inter",system-ui,sans-serif}
h1{font-size:34px;line-height:1.15;letter-spacing:-.02em;margin:0 0 10px}h2{font-size:22px;margin:34px 0 10px;letter-spacing:-.01em}h3{font-size:17px;margin:24px 0 6px}
.muted{color:var(--muted)}.wrap{max-width:1120px;margin:0 auto;padding:0 20px}.narrow{max-width:760px}
:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 55%,#fff);outline-offset:2px;border-radius:8px}
.top{background:var(--navy);color:#fff;position:sticky;top:0;z-index:5}
.bar{display:flex;align-items:center;gap:18px;min-height:64px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.logo{display:flex;align-items:center;gap:9px;color:#fff;text-decoration:none;font-weight:800;font-size:18px}
.title{color:#c9d3ee;text-decoration:none;font-weight:600;padding-left:16px;border-left:1px solid rgba(255,255,255,.25)}
.back{margin-left:auto;color:#c9d3ee;text-decoration:none;font-weight:600}.back:hover,.title:hover{color:#fff}
.search{display:flex;flex:1;max-width:420px;min-width:180px}
.search input{flex:1;min-width:0;padding:10px 14px;border:0;border-radius:10px 0 0 10px;font:inherit;background:#fff;color:var(--text)}
.search button{padding:10px 16px;border:0;border-radius:0 10px 10px 0;background:var(--accent);color:#fff;font:inherit;font-weight:700;cursor:pointer}
.internal .top{background:#3b1f5e}.banner{margin:0;background:var(--warn);text-align:center;padding:8px 16px;font-size:14px;color:#6b4a00}
.hero{padding:56px 0 34px;text-align:center}.hero h1{font-size:40px;margin-bottom:22px}
.search.big{max-width:640px;margin:0 auto}.search.big input{padding:16px 20px;font-size:17px;border:1px solid var(--line);border-right:0;box-shadow:0 6px 22px rgba(15,27,61,.08)}
.search.big button{padding:16px 26px;font-size:16px}
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:18px;padding-bottom:56px}
.cat{border:1px solid var(--line);border-radius:16px;padding:22px 24px;background:var(--bg)}
.cat h2{margin:0 0 4px;font-size:19px;display:flex;align-items:center;gap:12px}.cat h2 a{color:var(--text);text-decoration:none}.cat h2 a:hover{color:var(--accent)}
.ic{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;background:var(--tip);font-size:19px}
.cat p{margin:0 0 10px}.cat ul{margin:0;padding:0;list-style:none}.cat li{border-top:1px solid var(--line)}.cat li a{display:block;padding:9px 0;text-decoration:none}.cat li a:hover{text-decoration:underline}
.results{padding-bottom:24px}.results h2{margin-top:0}
.res{display:block;border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin:0 0 10px;text-decoration:none;color:var(--text)}
.res b{display:block;color:var(--accent)}.res span{color:var(--muted);font-size:15px}.res:hover{border-color:var(--accent);background:var(--soft)}
.crumbs{font-size:14px;color:var(--muted);margin:26px 0 12px}.crumbs a{color:var(--muted)}
.lead{font-size:18px;color:var(--muted);margin:0 0 22px}
.layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:48px;align-items:start}
.side{position:sticky;top:84px;display:flex;flex-direction:column;padding:26px 0;font-size:15px}
.side .cat-title{font-weight:800;color:var(--text);text-decoration:none;margin-bottom:8px}
.side a:not(.cat-title):not(.all){padding:8px 12px;border-left:3px solid var(--line);color:var(--muted);text-decoration:none}
.side a[aria-current=page]{border-left-color:var(--accent);color:var(--text);font-weight:700;background:var(--soft)}
.side a:hover{color:var(--text)}.side .all{margin-top:14px;font-size:14px}
.art{min-width:0;max-width:760px;padding-bottom:40px}
.body p,.body li{max-width:70ch}.body ol,.body ul{padding-left:1.3em}.body li{margin:6px 0}
.body img{max-width:100%;height:auto;border-radius:10px;border:1px solid var(--line)}
.body code{background:var(--soft);padding:2px 6px;border-radius:6px;font-size:.92em;word-break:break-all}
.body table{border-collapse:collapse;width:100%;margin:12px 0;font-size:15px}.body th,.body td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}.body th{background:var(--soft)}
.tip,.warn{border-radius:12px;padding:14px 18px;margin:18px 0}.tip{background:var(--tip);border-left:4px solid var(--accent)}.warn{background:var(--warn);border-left:4px solid #e0a100}
.tip p,.warn p{margin:0}.body h2[id],.body h3[id]{scroll-margin-top:84px}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:38px 0 18px}.pn a{border:1px solid var(--line);border-radius:12px;padding:12px 16px;text-decoration:none;color:var(--text);font-weight:600}
.pn a.r{text-align:right;grid-column:2}.pn small{display:block;color:var(--muted);font-weight:400}.pn a:hover{border-color:var(--accent)}
.ask{background:var(--soft);border-radius:12px;padding:16px 20px}
footer{border-top:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:14px;margin-top:20px}
@media (max-width:820px){.layout{grid-template-columns:1fr;gap:0}.side{position:static;flex-direction:row;flex-wrap:wrap;gap:6px;padding:16px 0 0}.side a:not(.cat-title):not(.all){border:1px solid var(--line);border-radius:99px;padding:6px 12px}
.side .cat-title{width:100%}h1{font-size:28px}.hero h1{font-size:30px}.title{display:none}.back{margin-left:0}}