:root{--bg:#fff;--fg:#14171f;--muted:#5a6272;--line:#e2e5ec;--card:#f6f7fa;--accent:#0b7a3b;--accent-fg:#fff;--link:#0b5fd6;--code:#f1f3f8;--warn:#fff6e0;--max:1100px}
@media (prefers-color-scheme:dark){:root{--bg:#0f1218;--fg:#e8ebf2;--muted:#9aa3b5;--line:#252a36;--card:#161a23;--accent:#73da82;--accent-fg:#0b1a10;--link:#7db4ff;--code:#1a1f2b;--warn:#2a2412}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.narrow{max-width:760px;margin:0 auto;padding:0 20px}
a{color:var(--link)}a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--link);outline-offset:2px;border-radius:3px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-fg);padding:8px 14px;z-index:10}.skip:focus{left:8px;top:8px}
.site-header{border-bottom:1px solid var(--line);position:sticky;top:0;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);z-index:5}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--fg);text-decoration:none}
nav a{margin-left:18px;color:var(--muted);text-decoration:none;font-size:15px}nav a:hover,nav a[aria-current]{color:var(--fg)}
nav a[aria-current]{border-bottom:2px solid var(--accent)}
h1{font-size:clamp(30px,5vw,46px);line-height:1.15;margin:.3em 0 .4em;letter-spacing:-.02em}
h2{font-size:clamp(23px,3.4vw,30px);line-height:1.25;margin:1.8em 0 .5em;letter-spacing:-.01em}
h3{font-size:20px;margin:1.4em 0 .4em}
.lead{font-size:clamp(18px,2.4vw,21px);color:var(--muted);max-width:60ch}
.eyebrow{color:var(--accent);font-weight:700;text-transform:uppercase;font-size:13px;letter-spacing:.08em;margin:0}
.hero{padding:64px 0 36px;border-bottom:1px solid var(--line)}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{display:inline-block;background:var(--accent);color:var(--accent-fg);padding:12px 22px;border-radius:9px;font-weight:700;text-decoration:none;border:2px solid var(--accent)}
.btn:hover{filter:brightness(1.08)}.btn-ghost{background:transparent;color:var(--fg);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent)}
.section{padding:36px 20px}.band{background:var(--card);border-block:1px solid var(--line);margin-top:20px}
.grid{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));margin-top:18px}
.card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--card);display:flex;flex-direction:column}
.card-img img{display:block;width:100%;height:auto}.card-body{padding:6px 18px 14px}
.card h3{margin:.8em 0 .2em}.card h3 a{color:var(--fg);text-decoration:none}.card h3 a:hover{text-decoration:underline}
.meta,.small{color:var(--muted);font-size:14px}.price{font-weight:700;color:var(--fg)}
.checks{padding-left:0;list-style:none}.checks li{padding:8px 0 8px 30px;position:relative}
.checks li::before{content:"";position:absolute;left:4px;top:15px;width:11px;height:6px;border-left:3px solid var(--accent);border-bottom:3px solid var(--accent);transform:rotate(-45deg)}
.plain{list-style:none;padding:0}.plain li{padding:6px 0}
.crumbs{font-size:14px;color:var(--muted);margin:22px 0 6px}.crumbs a{color:var(--muted)}
.product-head{display:grid;gap:28px;grid-template-columns:1.1fr 1fr;align-items:center;margin-bottom:10px}
.cover{width:100%;height:auto;border-radius:12px;border:1px solid var(--line)}
.buy{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.demo{margin:26px 0}.demo video,.demo img{width:100%;height:auto;border-radius:12px;border:1px solid var(--line);background:#16181d}
figcaption{font-size:14px;color:var(--muted);margin-top:6px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:40px;align-items:start}
.prose{min-width:0}.prose h2{border-top:1px solid var(--line);padding-top:1em}.prose h2:first-child{border:0;padding:0}
.prose img{max-width:100%;height:auto}
.toc{position:sticky;top:78px;font-size:14px;border-left:2px solid var(--line);padding-left:14px}
.toc ul{list-style:none;padding:0;margin:6px 0}.toc li{margin:5px 0}.toc .l3{padding-left:12px}.toc a{color:var(--muted);text-decoration:none}.toc a:hover{color:var(--fg)}
pre{background:var(--code);border:1px solid var(--line);border-radius:10px;padding:14px 16px;overflow-x:auto;font-size:14px;line-height:1.5}
code{font:0.92em ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--code);padding:.1em .35em;border-radius:5px}pre code{background:none;padding:0}
.table-wrap{overflow-x:auto;margin:1em 0}table{border-collapse:collapse;width:100%;font-size:15px}
th,td{border:1px solid var(--line);padding:8px 12px;text-align:left;vertical-align:top}th{background:var(--card)}
blockquote{margin:1em 0;padding:.2em 1em;border-left:4px solid var(--accent);background:var(--card);border-radius:0 8px 8px 0}
.callout{background:var(--warn);border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin:2em 0}
.post-item{border-bottom:1px solid var(--line);padding:6px 0 14px}.post-item h2{margin:.8em 0 .2em;font-size:24px}.post-item h2 a{color:var(--fg);text-decoration:none}
.site-footer{border-top:1px solid var(--line);margin-top:60px;padding:30px 0 50px;color:var(--muted);font-size:15px}
hr{border:0;border-top:1px solid var(--line);margin:2em 0}
@media (max-width:860px){.product-head,.layout{grid-template-columns:1fr}.toc{display:none}nav a{margin:0 14px 0 0}.bar{padding-top:8px;padding-bottom:8px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.site-header,.site-footer,.toc,.skip,.demo{display:none}body{font-size:12pt}}
h1 code,h2 code,h3 code{font-size:.8em}
.lang{display:inline-block;position:relative;margin-left:18px;font-size:14px}
.lang summary{cursor:pointer;list-style:none;color:var(--muted);border:1px solid var(--line);border-radius:7px;padding:2px 9px;font-weight:600}
.lang summary::-webkit-details-marker{display:none}
.lang[open] summary,.lang summary:hover{color:var(--fg);border-color:var(--accent)}
.lang ul{position:absolute;right:0;top:32px;z-index:6;list-style:none;margin:0;padding:6px;background:var(--bg);border:1px solid var(--line);border-radius:10px;min-width:170px;box-shadow:0 8px 24px rgba(0,0,0,.18)}
.lang li a{display:block;margin:0;padding:6px 10px;border-radius:6px;color:var(--fg);text-decoration:none;font-size:15px}
.lang li a:hover,.lang li a[aria-current]{background:var(--card)}
.lang li a[aria-current]{font-weight:700}
@media (max-width:860px){.lang{margin-left:0}}

.card-body{display:flex;flex-direction:column;flex:1}.card-body p:last-child{margin-top:auto;margin-bottom:8px}
.buybox{border:1px solid var(--line);background:var(--card);border-radius:12px;padding:16px 18px;margin-bottom:18px}
.buybox .btn{display:block;text-align:center;margin-top:10px}.price-big{font-size:34px;font-weight:800;line-height:1.1;margin:0 0 4px}
.aside-sticky{position:sticky;top:78px}.aside-sticky .toc{position:static}
@media (max-width:860px){.aside-sticky{position:static}.aside-sticky .toc{display:none}.buybox{margin-top:10px}}

.lead{font-size:18px;color:var(--muted);margin:.4em 0 1.2em}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.chip{display:inline-block;padding:4px 12px;border:1px solid var(--line);border-radius:999px;font-size:14px;color:var(--fg);text-decoration:none}
.chip:hover,.chip.on{border-color:var(--accent,#73da82);background:var(--card,transparent)}.chip.on{font-weight:600}
.cat{font-weight:600;text-transform:uppercase;letter-spacing:.04em;font-size:12px;text-decoration:none}
.pager{display:flex;flex-wrap:wrap;gap:8px;margin:28px 0}.pager a{padding:6px 12px;border:1px solid var(--line);border-radius:8px;text-decoration:none}.pager a.on{font-weight:700}
.related{margin-top:40px;border-top:1px solid var(--line);padding-top:8px}.tagcloud{margin-top:40px}
.prose .toc{margin:1.2em 0 1.6em}

:root{--d-ok:#e3f5e8;--d-okl:#2f9e52;--d-bad:#fdeaea;--d-badl:#d14343;--d-warn:#fff3d6;--d-warnl:#c98a00;--d-acc:#e4eefc;--d-accl:#2f6fd6;--d-neu:#f1f3f8;--d-neul:#9aa3b5}
@media (prefers-color-scheme:dark){:root{--d-ok:#16301e;--d-okl:#4fbf72;--d-bad:#3a1c1c;--d-badl:#ef7373;--d-warn:#3a2f12;--d-warnl:#e2b13d;--d-acc:#16273f;--d-accl:#6aa5ff;--d-neu:#1a1f2b;--d-neul:#5b6578}}
.dg{margin:1.8em 0;padding:14px 12px 10px;border:1px solid var(--line);border-radius:12px;background:var(--bg)}
.dg svg{width:100%;height:auto;display:block;font-family:inherit}.dg-title{margin:0 0 8px;font-weight:700;font-size:15px}
.dg figcaption{margin-top:8px;font-size:14px;color:var(--muted)}
.dg .b{stroke-width:1.5}.dg .b.neutral{fill:var(--d-neu);stroke:var(--d-neul)}.dg .b.ok{fill:var(--d-ok);stroke:var(--d-okl)}.dg .b.bad{fill:var(--d-bad);stroke:var(--d-badl)}.dg .b.warn{fill:var(--d-warn);stroke:var(--d-warnl)}.dg .b.accent{fill:var(--d-acc);stroke:var(--d-accl)}
.dg .n.neutral{fill:var(--d-neul)}.dg .n.ok{fill:var(--d-okl)}.dg .n.bad{fill:var(--d-badl)}.dg .n.warn{fill:var(--d-warnl)}.dg .n.accent{fill:var(--d-accl)}
.dg .dot.neutral{fill:var(--d-neul)}.dg .dot.ok{fill:var(--d-okl)}.dg .dot.bad{fill:var(--d-badl)}.dg .dot.warn{fill:var(--d-warnl)}.dg .dot.accent{fill:var(--d-accl)}
.dg text{fill:var(--fg);font-size:14px}.dg .sb{font-size:13px;fill:var(--muted)}.dg .lb{font-weight:600}.dg .nt{fill:#fff;font-size:12px;font-weight:700}.dg .el{font-size:12px;fill:var(--muted)}
.dg .ar{stroke:var(--muted);stroke-width:1.6;fill:none}.dg .ah{fill:var(--muted)}
.dg .el{paint-order:stroke;stroke:var(--bg);stroke-width:4px}.prose .dg-title{margin:0 0 8px;font-size:15px;font-weight:700}.prose .dg figcaption{font-size:14px}

.ptoc{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:1.2em 0 1.6em;font-size:15px;background:var(--card)}
.ptoc summary{cursor:pointer;font-weight:600}.ptoc ol{margin:10px 0 2px;padding-left:20px;columns:2;column-gap:28px}.ptoc li{margin:4px 0;break-inside:avoid}
@media (max-width:700px){.ptoc ol{columns:1}}

.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center}
.hero-shot{margin:0}.hero-shot img{width:100%;height:auto;border-radius:12px;border:1px solid var(--line);display:block}.hero-shot figcaption{font-size:13px;color:var(--muted);margin-top:8px}
.stats{list-style:none;display:flex;flex-wrap:wrap;gap:26px;padding:0;margin:26px 0 0}.stats li{display:flex;flex-direction:column}.stats strong{font-size:30px;line-height:1.1}.stats span{font-size:14px;color:var(--muted)}
.paths{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin-top:18px}
.path{border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--card)}.path h3{margin:.1em 0 .4em;font-size:18px}.path p{margin:.3em 0}
.pgrid{display:grid;gap:22px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));margin:22px 0}
.pcard{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--bg);display:flex;flex-direction:column}
.pcard-img img{display:block;width:100%;height:auto}.pcard-body{padding:4px 18px 16px}.pcard h2{font-size:19px;line-height:1.3;margin:.3em 0 .4em}.pcard h2 a{color:var(--fg);text-decoration:none}.pcard h2 a:hover{text-decoration:underline}.pcard p{margin:.3em 0;font-size:15px}
.post-cover{width:100%;height:auto;border-radius:12px;border:1px solid var(--line);margin:8px 0 20px;display:block}
.freebox{display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}.freebox h2{margin-top:0}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}}