:root{--blue:#0b5fff;--dark:#0f172a;--text:#1e293b;--muted:#64748b;--bg:#f8fafc;--card:#fff;--line:#e2e8f0;--r:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:17px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--text);background:var(--bg)}
img{max-width:100%}a{color:var(--blue)}a:hover{text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}.narrow{max-width:780px}.center{text-align:center}
.sr{position:absolute;left:-9999px}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;background:#fff;padding:8px;z-index:99}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.bar{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:600;font-size:20px;color:var(--dark);text-decoration:none}.logo b{color:var(--blue)}
.logo-mark{background:var(--blue);color:#fff;border-radius:9px;padding:4px 8px;font-size:15px;font-weight:700}
.logo.light{color:#fff}
nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0}
nav a{display:block;padding:8px 14px;border-radius:8px;text-decoration:none;color:var(--text);font-size:16px}
nav a:hover,nav a.active{background:#e8f0ff;color:var(--blue)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;font-size:22px;padding:2px 10px;cursor:pointer}
.catbar{background:#f1f5f9;border-top:1px solid var(--line);overflow-x:auto;white-space:nowrap}
.catbar a{display:inline-block;padding:8px 14px;font-size:14px;color:var(--muted);text-decoration:none}.catbar a:hover{color:var(--blue)}
.hero{background:linear-gradient(135deg,#0b3bb5,#0b5fff 60%,#3aa0ff);color:#fff;padding:72px 0;text-align:center}
.hero h1{font-size:clamp(30px,5vw,48px);line-height:1.15;margin:0 0 14px}.hero p{font-size:19px;max-width:660px;margin:0 auto 22px;opacity:.95}
.hero.small{padding:44px 0}.hero.small h1{font-size:clamp(28px,4vw,38px)}
.search{display:flex;gap:8px;max-width:540px;margin:0 auto}.search input,.filter{flex:1;padding:13px 16px;border-radius:10px;border:0;font-size:16px;width:100%;max-width:540px}
.btn{display:inline-block;background:var(--blue);color:#fff;border:0;padding:12px 22px;border-radius:10px;font-size:16px;text-decoration:none;cursor:pointer;font-weight:600}
.btn:hover{background:#0848c9}.btn.ghost{background:transparent;color:var(--blue);border:2px solid var(--blue)}
.hero .btn{background:#fff;color:var(--blue)}.hero .btn.ghost{background:transparent;color:#fff;border-color:#fff}
section.wrap{padding-top:44px;padding-bottom:20px}h2{font-size:28px;line-height:1.25;margin:34px 0 12px;color:var(--dark)}
section.wrap>h2:first-child{margin-top:0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin-top:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;transition:.2s}
.card:hover{box-shadow:0 8px 24px rgba(15,23,42,.08);transform:translateY(-2px)}
.card h3{margin:10px 0 8px;font-size:20px;line-height:1.3}.card h3 a{color:var(--dark);text-decoration:none}.card h3 a:hover{color:var(--blue)}
.card p{margin:0 0 10px;color:var(--muted);font-size:15.5px}
.tag{display:inline-block;background:#e8f0ff;color:var(--blue);font-size:12.5px;font-weight:700;padding:3px 10px;border-radius:99px;text-transform:uppercase;letter-spacing:.04em}
.meta{color:var(--muted);font-size:14px}
.catgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.catcard{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;text-decoration:none;color:var(--text);transition:.2s;border-top:4px solid var(--blue)}
.catcard:hover{box-shadow:0 8px 24px rgba(15,23,42,.08)}.catcard h3{margin:0 0 6px;color:var(--dark)}.catcard p{margin:0;font-size:15px;color:var(--muted)}
.band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:40px;padding:40px 0}
.three{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px}.three h3{margin:0 0 6px;color:var(--blue)}.three p{margin:0}
.post,.prose{padding:30px 0}.post h1{font-size:clamp(28px,4.5vw,40px);line-height:1.2;margin:12px 0 8px;color:var(--dark)}
.post h2,.prose h2{font-size:24px;margin:30px 0 8px}.post p,.post li,.prose p,.prose li{font-size:18px}
kbd,code{background:#eef2f7;border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-size:.9em}
.note{background:#fff8e6;border-left:4px solid #f5b301;padding:14px 18px;border-radius:8px;margin-top:34px;font-size:15.5px}
.crumbs{font-size:14px;color:var(--muted);padding-top:22px}.crumbs a{color:var(--muted)}
.related{padding-bottom:40px}
.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{border:1px solid var(--line);background:#fff;padding:7px 16px;border-radius:99px;cursor:pointer;font-size:15px}
.chip.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:34px}
.form label{display:block;font-weight:600;margin:14px 0 4px;font-size:15px}
.form input,.form textarea{width:100%;padding:11px 13px;border:1px solid #cbd5e1;border-radius:9px;font:inherit;background:#fff}
.form input:focus,.form textarea:focus,.search input:focus,.filter:focus{outline:3px solid #9ec2ff}
.form .btn{margin-top:16px}
.site-footer{background:var(--dark);color:#cbd5e1;margin-top:60px;padding-top:44px;font-size:15px}
.fgrid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}.site-footer h3{color:#fff;font-size:16px;margin:0 0 10px}
.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li{margin:6px 0}.site-footer a{color:#cbd5e1}.site-footer a:hover{color:#fff}
.legal{border-top:1px solid #1e293b;margin-top:30px;padding-top:18px;padding-bottom:26px;font-size:13.5px;color:#94a3b8}
.cookie{position:fixed;left:16px;right:16px;bottom:16px;max-width:760px;margin:auto;background:#fff;border:1px solid var(--line);box-shadow:0 10px 40px rgba(0,0,0,.2);border-radius:14px;padding:16px 20px;z-index:99;display:flex;gap:16px;align-items:center;flex-wrap:wrap;font-size:14.5px}
.cookie[hidden]{display:none}.cookie p{margin:0;flex:1 1 300px}
@media(max-width:820px){.nav-toggle{display:block}nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;border-bottom:1px solid var(--line);padding:8px 14px}
nav.open{display:block}nav ul{flex-direction:column}.two{grid-template-columns:1fr}.fgrid{grid-template-columns:1fr 1fr}.hero{padding:50px 0}.search{flex-direction:column}.catbar{top:0}}
@media(max-width:480px){body{font-size:16px}.fgrid{grid-template-columns:1fr}}
.disclose{background:#eef6ff;border:1px solid #bfdbfe;border-radius:10px;padding:14px 18px;font-size:15.5px;margin:26px 0 0}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin:16px 0}
.cmp{border-collapse:collapse;width:100%;min-width:780px;font-size:15.5px}
.cmp th,.cmp td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.cmp thead th{background:var(--dark);color:#fff;position:sticky;top:0}.cmp tbody th{background:#f8fafc;font-weight:600;width:22%}
.cmp td.y{color:#166534;background:#f0fdf4}.cmp td.n{color:#991b1b;background:#fef2f2}.cmp td.m{color:#854d0e;background:#fffbeb}
.chooser{display:grid;gap:6px;max-width:520px;margin-top:12px}.chooser label{font-weight:600;margin-top:10px}
.chooser select{padding:11px;border:1px solid #cbd5e1;border-radius:9px;font:inherit;background:#fff}.chooser .btn{margin-top:14px}
.result{background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:10px;padding:16px 20px;margin-top:18px;max-width:640px}.result h3{margin:0 0 6px}
.steps li{margin:10px 0;font-size:18px}
details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:10px 0}
summary{cursor:pointer;font-weight:600;color:var(--dark)}details p{margin:10px 0 0}
@media print{.site-header,.site-footer,.cookie,.related{display:none}}