[hidden]{display:none!important}
:root{--bg:#f4f6fb;--card:#fff;--ink:#0f172a;--mut:#5a6579;--line:#e2e6ef;--pri:#f59e0b;--pri2:#d97706;--priS:#fff4dc;--navy:#0b1220;--navy2:#13213d;--acc:#2563eb;--r:16px;--hdr:#fff;--sh:0 1px 2px rgba(15,23,42,.05),0 10px 30px rgba(15,23,42,.06);--code:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
[data-theme=dark]{--hdr:#0f172a;--bg:#080d19;--card:#101a2f;--ink:#e9eef9;--mut:#9aa6bf;--line:#1d2a47;--priS:#2a2110;--sh:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.35)}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}a{color:var(--acc);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}
.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#000;color:#fff;padding:8px 12px;z-index:99;border-radius:8px}
:focus-visible{outline:3px solid var(--pri);outline-offset:2px;border-radius:6px}
.i{display:inline-block;width:1em;height:1em;fill:currentColor;vertical-align:-.14em;flex:none;overflow:visible}.fas{width:1.1em;height:1.1em}
.acts #dmx-shell{min-width:96px;min-height:44px;display:flex;align-items:center}
/* header */
.top{position:sticky;top:0;z-index:50;background:var(--hdr);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top)}
.top-in{display:flex;align-items:center;gap:12px;height:62px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:1.12rem;white-space:nowrap}.brand:hover{text-decoration:none}.brand b{color:var(--pri)}.brand img{border-radius:9px}
.top-search{flex:1;max-width:460px;margin:0 auto 0 14px}
.sbox{position:relative;display:flex;align-items:center;background:#ffffff14;border:1px solid #ffffff22;border-radius:999px;padding:0 6px 0 14px;color:#cbd5e6}
.sbox:focus-within{background:#fff;color:#334;border-color:var(--pri);box-shadow:0 0 0 4px #f59e0b33}
.sbox input{flex:1;min-width:0;border:0;background:transparent;color:inherit;font:inherit;padding:10px 10px;outline:0}.sbox input::placeholder{color:#94a3b8}.sbox:focus-within input{color:#0f172a}
.sbox input::-webkit-search-cancel-button{display:none}
.acts{display:flex;align-items:center;gap:4px;margin-left:auto}
.ibtn{display:inline-flex;align-items:center;gap:7px;color:var(--ink);background:transparent;border:0;padding:9px 11px;border-radius:10px;font:inherit;font-size:.92rem;cursor:pointer;list-style:none}.ibtn:hover{background:var(--bg);text-decoration:none}.ibtn::-webkit-details-marker{display:none}
.menu{position:relative}.pop{position:absolute;right:0;top:calc(100% + 8px);width:280px;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh);padding:8px}
.pop a{display:flex;gap:12px;align-items:center;padding:10px;border-radius:10px;color:var(--ink)}.pop a:hover{background:var(--bg);text-decoration:none}.pop a.on{background:var(--priS)}
.pop a span{display:flex;flex-direction:column;line-height:1.25}.pop small{color:var(--mut)}.pop .fas{color:var(--pri2);font-size:1.15rem}.pop hr{border:0;border-top:1px solid var(--line);margin:6px 0}
/* hero */
.hero{background:radial-gradient(1200px 400px at 80% -10%,#f59e0b22,transparent),linear-gradient(180deg,var(--navy),var(--navy2));color:#fff;padding:clamp(34px,7vw,72px) 0 clamp(30px,5vw,54px)}
.hero-in{text-align:center}.kick{display:inline-flex;gap:8px;align-items:center;background:#f59e0b22;color:#fcd34d;border:1px solid #f59e0b44;padding:5px 12px;border-radius:999px;font-size:.85rem;font-weight:600}
.hero h1{font-size:clamp(1.9rem,5.4vw,3.2rem);line-height:1.12;margin:16px auto 10px;letter-spacing:-.02em;max-width:18ch}.hero h1 em{font-style:normal;color:var(--pri)}
.hero p{color:#b6c2d9;max-width:56ch;margin:0 auto 22px;font-size:1.05rem}
.hero-search{max-width:640px;margin:0 auto;padding:6px 6px 6px 18px;background:#fff;color:#334;border-color:#fff;box-shadow:0 20px 50px #0006}
.hero-search input{color:#0f172a;font-size:1.05rem;padding:13px 10px}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--pri);color:#2a1700;font:inherit;font-weight:700;border:0;padding:10px 18px;border-radius:999px;cursor:pointer;white-space:nowrap}.btn:hover{background:#fbbf24;text-decoration:none}
.btn.ghost{background:var(--card);color:var(--ink);border:1px solid var(--line);font-weight:600;padding:8px 14px;font-size:.9rem}.btn.ghost:hover{border-color:var(--pri)}
.stats{display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:center;margin-top:22px;color:#9fb0cc;font-size:.92rem}.stats b{color:#fff}
.sg{position:absolute;left:0;right:0;top:calc(100% + 8px);background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh);overflow:hidden;z-index:60;text-align:left}
.sg a{display:flex;gap:12px;align-items:baseline;padding:10px 14px;color:var(--ink)}.sg a:hover,.sg a.on{background:var(--priS);text-decoration:none}.sg .code{flex:none}.sg span{color:var(--mut);font-size:.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
/* blocks */
.blk{margin:34px 0}.blk h2{font-size:1.25rem;margin:0 0 14px;display:flex;align-items:center;gap:10px}.blk h2 .fas{color:var(--pri2)}
.fams{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px}
.fam{display:flex;align-items:center;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;color:var(--ink);box-shadow:var(--sh);transition:transform .15s,border-color .15s}.fam:hover{transform:translateY(-2px);border-color:var(--pri);text-decoration:none}
.fi{flex:none;width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#2a1700;display:grid;place-items:center;font-size:1.4rem}.fi.lg{width:56px;height:56px}
.ft{display:flex;flex-direction:column;flex:1;line-height:1.3}.ft em{font-style:normal;color:var(--pri2);font-weight:600}.ft small{color:var(--mut);margin-top:4px}.fn{font-weight:800;font-size:1.3rem;color:var(--mut)}
.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:7px 16px;color:var(--ink)}.chip:hover{border-color:var(--pri);text-decoration:none;background:var(--priS)}.chip b,.code{font-family:var(--code);font-weight:700;letter-spacing:.02em}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:10px}.grid.g3{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}.grid.left{text-align:left;margin:16px 0}
.cc,.gc{position:relative;display:flex;flex-direction:column;gap:3px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:13px 40px 13px 15px;color:var(--ink);transition:border-color .15s,transform .15s}.cc:hover,.gc:hover{border-color:var(--pri);transform:translateY(-1px);text-decoration:none}
.cc .code,.gc .code{color:var(--pri2);font-size:1.05rem}.cc span,.gc span{color:var(--mut);font-size:.9rem;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.gc small{color:var(--mut)}
.go{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--mut);font-size:.8rem}.cc.off{opacity:.75}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.steps>div{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px}.steps p{margin:6px 0 0;color:var(--mut);font-size:.93rem}.n{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--pri);color:#2a1700;font-weight:800;margin-right:8px;font-size:.85rem}
/* inner pages */
.crumbs{padding:16px 0 4px;font-size:.88rem}.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 8px;align-items:center}.crumbs li{display:flex;align-items:center;gap:8px;color:var(--mut)}.crumbs .fas{font-size:.65rem}.crumbs a{color:var(--mut)}
.ph{display:flex;gap:16px;align-items:center;margin:10px 0 22px}.ph h1{margin:0;font-size:clamp(1.4rem,3.6vw,2rem);line-height:1.2}.ph p{margin:4px 0 0;color:var(--mut)}
.ch{background:linear-gradient(180deg,var(--navy),var(--navy2));color:#fff;border-radius:20px;padding:clamp(20px,4vw,34px);margin:8px 0 18px;position:relative;overflow:hidden}
.ch::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(#f59e0b55,transparent 70%)}
.big.code{display:inline-block;font-size:clamp(2rem,8vw,3.4rem);line-height:1;background:var(--pri);color:#2a1700;padding:10px 18px;border-radius:14px}
.chm{display:inline-flex;gap:8px;flex-wrap:wrap;margin-left:10px;vertical-align:middle}.tag{background:#ffffff1c;border:1px solid #ffffff26;border-radius:999px;padding:4px 12px;font-size:.82rem}.tag.mut{opacity:.8}
.ch h1{font-size:clamp(1.25rem,3.4vw,1.7rem);margin:16px 0 6px;position:relative}.lead{color:#c3cee3;margin:0 0 16px;max-width:70ch;position:relative}.acts2{display:flex;gap:8px;flex-wrap:wrap;position:relative}.ch .btn.ghost{background:#ffffff14;color:#fff;border-color:#ffffff26}.ch .btn.ghost:hover{border-color:var(--pri)}
.toc{display:flex;gap:8px;overflow-x:auto;padding:4px 0 14px;scrollbar-width:none;position:sticky;top:62px;z-index:20;background:var(--bg);margin:0 -16px;padding-left:16px;padding-right:16px}.toc::-webkit-scrollbar{display:none}
.toc a{flex:none;display:inline-flex;gap:7px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:7px 14px;color:var(--ink);font-size:.88rem}.toc a:hover{border-color:var(--pri);text-decoration:none}.toc .fas{color:var(--pri2)}
.sec{background:var(--card);border:1px solid var(--line);border-radius:var(--r);margin:0 0 12px;box-shadow:var(--sh);scroll-margin-top:130px}
.sec summary{display:flex;align-items:center;gap:12px;padding:14px 16px;cursor:pointer;list-style:none}.sec summary::-webkit-details-marker{display:none}.sec h2{flex:1;margin:0;font-size:1.1rem;line-height:1.3}
.si{flex:none;width:36px;height:36px;border-radius:10px;background:var(--priS);color:var(--pri2);display:grid;place-items:center}.chev{color:var(--mut);transition:transform .2s}.sec[open] .chev{transform:rotate(180deg)}
.prose{padding:0 18px 16px}.prose.intro{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;margin-bottom:12px}.prose>:first-child{margin-top:0}.prose p,.prose li{max-width:75ch}.prose ul,.prose ol{padding-left:1.3em}.prose li{margin:.35em 0}.prose table{border-collapse:collapse;width:100%;display:block;overflow-x:auto}.prose td,.prose th{border:1px solid var(--line);padding:8px 10px}
.prose ul.rel{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px}.prose ul.rel li{margin:0;max-width:none}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0}.pn a{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px 16px;color:var(--ink)}.pn a:hover{border-color:var(--pri);text-decoration:none}.pn a.r{justify-content:flex-end;text-align:right}.pn span{display:flex;flex-direction:column;line-height:1.25}.pn small{color:var(--mut)}.pn .code{color:var(--pri2)}
.empty{text-align:center;color:var(--mut);padding:36px 0}.empty>.fas{font-size:2.4rem;color:var(--pri2);margin-bottom:10px}.empty.big h1{color:var(--ink)}.empty .sbox{max-width:560px;margin:16px auto}
.sbox.big{background:var(--card);border-color:var(--line);color:var(--mut);padding:5px 5px 5px 16px;max-width:640px;margin:0 0 22px}.sbox.big input{color:var(--ink)}.sbox.big input::placeholder{color:var(--mut)}.sbox.big:focus-within{background:var(--card)}.sbox.big:focus-within input{color:var(--ink)}
.muted{color:var(--mut)}.mt{margin-top:22px}
/* ads */
.ad{margin:22px 0;min-height:110px;text-align:center;position:relative}.ad-l{display:block;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mut);margin-bottom:4px}.ad ins:not([data-ad-status]){min-height:90px}
/* footer */
.foot{margin-top:40px;background:var(--navy);color:#b6c2d9;padding-top:34px}.foot-in{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}.foot h3{color:#fff;font-size:.95rem;margin:0 0 10px}.foot a{display:block;color:#b6c2d9;padding:3px 0}.foot p{margin:10px 0;font-size:.93rem}.foot .btn.ghost{background:#ffffff14;color:#fff;border-color:#ffffff26}.foot .ios{font-size:.85rem}
.brand.sm{font-size:1rem}.copy{border-top:1px solid #ffffff14;margin-top:26px;padding-top:16px;padding-bottom:calc(20px + env(safe-area-inset-bottom));font-size:.82rem;color:#7d8ba6}
.hide-s{display:inline-flex}
@media(max-width:760px){.top{position:static}.top-in{flex-wrap:wrap;height:auto;padding:10px 16px;gap:8px 8px}.top-search{order:3;flex:1 1 100%;max-width:none;margin:0}.acts>a.ibtn{display:none}.top-in{padding:8px 12px!important;gap:6px!important}.brand{font-size:.98rem;gap:8px}.brand img{width:30px;height:30px}.acts{order:2}.brand{order:1}.top-in{flex-wrap:wrap}.acts{margin-left:auto}.foot-in{grid-template-columns:1fr}.chm{display:flex;margin:12px 0 0}.pop{position:fixed;left:12px;right:12px;top:64px;width:auto}.toc{top:0}.sec{scroll-margin-top:90px}.pn{grid-template-columns:1fr}body.is-home .top-search{display:none}body.is-home .top-in{padding:12px 16px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.top,.foot,.ad,.toc,.acts2,.pn{display:none!important}body{background:#fff}.sec{box-shadow:none}.sec:not([open])>.prose{display:block}}

.top-search{background:var(--bg);border-color:var(--line);color:var(--mut)}.top-search input{color:var(--ink)}.top-search input::placeholder{color:var(--mut)}
.top-search:focus-within{background:var(--card);color:var(--mut);border-color:var(--pri)}.top-search:focus-within input{color:var(--ink)}
.ad:has(ins[data-ad-status="unfilled"]){display:none}
.brand img{box-shadow:0 0 0 1px #ffffff2a}