:root{--bg:#f4f6f8;--card:#fff;--fg:#1b232b;--mut:#64707c;--line:#e0e5ea;--acc:#2563a8;--acc2:#4f8fd6;--acc-fg:#fff;--ok:#1f7a4d;--okbg:#dff3e8;--warn:#9a6700;--warnbg:#fff1c9;--openbg:#e8ebee;--soft:#eef3f8;--sh:0 1px 2px rgba(20,40,60,.06),0 4px 14px rgba(20,40,60,.05);--side1:#1d3f66;--side2:#2d6aa8;--sidefg:#fff}
@media(prefers-color-scheme:dark){:root{--bg:#101418;--card:#1a2026;--fg:#e6e9ec;--mut:#9aa5af;--line:#2a323a;--acc:#6aa7e6;--acc2:#8dbdf0;--acc-fg:#0e141a;--ok:#6fcf9b;--okbg:#17352a;--warn:#e8bd5a;--warnbg:#3a2f10;--openbg:#262d34;--soft:#222a32;--sh:0 1px 2px rgba(0,0,0,.4),0 4px 14px rgba(0,0,0,.25);--side1:#14283f;--side2:#1f4670}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif;overflow-wrap:anywhere;overflow-x:hidden}
[hidden]{display:none!important}
a{color:var(--acc)}
:focus-visible{outline:3px solid var(--acc2);outline-offset:2px;border-radius:4px}
h1{font-size:1.3rem;line-height:1.25;margin:0}
h2{font-size:1.45rem;line-height:1.2;margin:0}
h3{font-size:1.05rem;margin:18px 0 6px}
section{margin:0 0 44px}
main{padding:0 16px 40px;min-width:0}
main>section:first-child{margin-top:20px}
.sh{display:flex;gap:12px;align-items:center;margin:0 0 16px}
.sh .ic{font-size:1.5rem;background:var(--soft);border-radius:12px;width:46px;height:46px;display:grid;place-items:center;flex:none}
.sub1{margin:2px 0 0;color:var(--mut);font-size:.92rem}
.sub{font-weight:600;margin:14px 0 4px}
/* shell: phone = sticky top header, desktop = left sidebar */
#side{position:sticky;top:0;z-index:10;background:linear-gradient(135deg,var(--side1),var(--side2));color:var(--sidefg);box-shadow:var(--sh)}
.sidein{padding:10px 16px 0}
#side a,#side button.link{color:var(--sidefg)}
.brand{display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center}
.brand h1{flex:1 1 100%;font-size:1.1rem}
.brand .pill{display:none}
.me{display:flex;gap:10px;align-items:center;position:absolute;top:10px;right:16px}
.me .mt{display:flex;flex-direction:column;align-items:flex-end;line-height:1.2;font-size:.85rem}
.me .mt b{display:none}
.me form{margin:0}
.avatar{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.2);display:grid;place-items:center;font-weight:700;font-size:.8rem;overflow:hidden;flex:none;border:2px solid rgba(255,255,255,.5)}
.avatar img{width:100%;height:100%;object-fit:cover;display:block}
#nav{display:flex;gap:2px;overflow-x:auto;margin:8px -16px 0;padding:0 12px;scrollbar-width:none}
#nav a{display:flex;gap:6px;align-items:center;padding:10px 10px;text-decoration:none;font-size:.9rem;white-space:nowrap;border-bottom:3px solid transparent;opacity:.85;position:relative}
#nav a[aria-current]{border-bottom-color:#fff;opacity:1;font-weight:600}
#nav a i{font-style:normal}
#nav a.dot::after{content:"";width:9px;height:9px;border-radius:50%;background:#ffcf4a;margin-left:2px}
.me button.link{font-size:.8rem;padding:0;text-decoration:underline}
@media(min-width:960px){
  .shell{display:grid;grid-template-columns:260px minmax(0,1fr);align-items:start}
  #side{position:sticky;top:0;height:100vh;box-shadow:none}
  .sidein{display:flex;flex-direction:column;gap:18px;padding:24px 18px;height:100%;overflow-y:auto}
  .brand{flex-direction:row}
  .brand h1{font-size:1.25rem}
  .brand .pill{display:inline-block}
  .me{position:static;order:1;background:rgba(255,255,255,.12);border-radius:12px;padding:10px 12px}
  .me .mt{align-items:flex-start;font-size:.95rem}
  .me .mt b{display:block}
  .avatar{width:46px;height:46px;font-size:1rem}
  #nav{order:2;flex-direction:column;overflow:visible;margin:0;padding:0;gap:2px}
  #nav a{padding:10px 12px;border-radius:10px;border-bottom:0;font-size:.97rem}
  #nav a:hover{background:rgba(255,255,255,.12)}
  #nav a[aria-current]{background:rgba(255,255,255,.22)}
  #nav a.dot::after{margin-left:auto}
  main{padding:0 36px 60px;max-width:1160px}
  main>section:first-child{margin-top:32px}
  html{scroll-padding-top:20px}
}
.pill{display:inline-block;background:rgba(255,255,255,.18);border-radius:99px;padding:1px 11px;font-size:.82rem}
.pill.cd{background:#ffcf4a;color:#3a2a00;font-weight:600}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin:12px 0;box-shadow:var(--sh)}
.mut,.hint{color:var(--mut);font-size:.9rem}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.tile{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--line);border-radius:12px;padding:12px 14px;box-shadow:var(--sh)}
.tile.ok{border-left-color:var(--ok)}.tile.part{border-left-color:var(--warn)}
.tile h3{margin:0 0 4px;display:flex;justify-content:space-between;gap:8px;align-items:center;font-size:1rem}
.tile p{margin:0}
.st{font-size:.75rem;font-weight:600;border-radius:99px;padding:1px 10px;background:var(--openbg);color:var(--mut);white-space:nowrap}
.st.ok{background:var(--okbg);color:var(--ok)}.st.part{background:var(--warnbg);color:var(--warn)}
.total{font-weight:600;margin:6px 0}.wide{grid-column:1/-1}
table{width:100%;border-collapse:collapse;font-size:.92rem}
th,td{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--mut);font-weight:600;font-size:.82rem}
th:first-child,td:first-child{white-space:nowrap}
.tw{overflow-x:auto}
select,input,textarea,button{font:inherit;color:var(--fg);background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 10px;max-width:100%}
textarea{width:100%;min-height:90px}
button,a.btn{background:var(--acc);color:var(--acc-fg);border-color:var(--acc);cursor:pointer;font:inherit;border-radius:8px;padding:8px 14px;text-decoration:none;display:inline-block}
button:disabled{opacity:.5;cursor:default}
button.link{background:none;color:var(--acc);border:0;padding:2px 6px;font-size:.9rem}
button.ghost{background:none;color:var(--acc)}
ul.todo{list-style:none;padding:0;margin:12px 0}
ul.todo li{padding:12px 0;border-bottom:1px solid var(--line)}
.up{margin-top:8px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.pics{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
figure.vis{margin:0}
figure.vis img{max-height:180px;max-width:100%;border-radius:10px;border:1px solid var(--line);display:block}
figure.vis figcaption{margin-top:3px}
.prevbox{display:contents}
.msg{font-size:.9rem;margin-top:6px}.msg.err{color:#c53030}.msg.good{color:var(--ok)}
@media(prefers-color-scheme:dark){.msg.err{color:#f0868b}}
.crit{display:grid;grid-template-columns:2em 1fr auto;gap:2px 8px;padding:7px 0;border-bottom:1px solid var(--line)}
.crit .ev{grid-column:2/4;color:var(--mut);font-size:.88rem}
details.card>summary{cursor:pointer;font-weight:600;list-style-position:inside}
details.card[open]>summary{margin-bottom:8px}
#crit{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:0 14px;align-items:start}
#vparts{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,330px),1fr));gap:0 14px}
#vparts .card{margin:0 0 14px}
.learn{display:grid;grid-template-columns:1fr;gap:0 14px;align-items:start}
@media(min-width:1280px){.learn{grid-template-columns:1fr 1fr}}
.dgw{margin:12px 0}
svg.dg{display:block;width:100%;max-width:440px;margin:0 auto;color:var(--mut);font:12.5px system-ui,sans-serif}
svg.dg text{fill:var(--fg)}
svg.dg .bx{fill:var(--soft);stroke:var(--line);stroke-width:1.5}
svg.dg .bx.acc{stroke:var(--acc);fill:var(--soft)}
svg.dg .bx.warn{fill:var(--warnbg);stroke:var(--warn)}
svg.dg .bx.good{fill:var(--okbg);stroke:var(--ok)}
svg.dg .bx.dash{stroke-dasharray:5 3}
svg.dg .ln{stroke:currentColor;stroke-width:1.6}
svg.dg .ln.dash{stroke-dasharray:4 3}
svg.dg .bar{fill:var(--mut);opacity:.55}svg.dg .bar.best{fill:var(--ok);opacity:1}
.nums{background:var(--soft);border-radius:8px;padding:8px 12px}
dl.gl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 14px}
dl.gl dt{font-weight:600}dl.gl dd{margin:0}
@media(max-width:560px){dl.gl{grid-template-columns:1fr}dl.gl dd{margin-bottom:6px}}
table.mini{width:auto}
.warnbar{display:flex;gap:14px;align-items:center;background:var(--warnbg);color:var(--warn);border:2px solid var(--warn);border-radius:14px;padding:16px 18px;font-size:1.1rem;font-weight:700;margin:0 0 16px}
.warnbar .wi{font-size:2rem}
#codegrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:12px;margin:8px 0}
.codecard{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;box-shadow:var(--sh)}
.codecard .ico{font-size:1.8rem;grid-row:span 2}
.codecard .lb{display:flex;flex-direction:column;gap:2px;font-weight:600}
.codecard .ver{font-size:.8rem;font-weight:400;color:var(--mut)}
.codecard .chg{font-size:.8rem;font-weight:400;color:var(--mut);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.codecard .btn{grid-column:2;justify-self:start}
code{background:var(--soft);padding:1px 5px;border-radius:4px;font-size:.88em}
pre.stmt{white-space:pre-wrap;background:var(--soft);padding:12px;border-radius:8px;font:inherit;font-size:.92rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.grid .card{margin:0;padding:12px}
.grid img{width:100%;height:120px;object-fit:cover;object-position:top;border-radius:6px;display:block;margin-bottom:6px;border:1px solid var(--line)}
.cm{white-space:pre-wrap}
.reply{margin:10px 0 0 18px;padding-left:12px;border-left:3px solid var(--line)}
.cm-h{font-size:.88rem;color:var(--mut)}.cm-h b{color:var(--fg)}
.thread{border-top:1px solid var(--line);padding:8px 0}
.mine{border-left:3px solid var(--acc);padding-left:8px;background:var(--soft)}
.reply.mine{margin-left:18px}
.ask{margin-top:10px;border-top:1px dashed var(--line);padding-top:4px}
.ask>button.link{padding-left:0}
.ask .askbody{margin-top:4px}
td>.ask{margin:0;border:0;padding:0}
tr[hidden]{display:none}
.newq{margin-top:8px}.newq textarea{min-height:60px}
#threads .thread{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px;margin:10px 0;box-shadow:var(--sh)}
/* gate */
form.gate,div.gate{max-width:380px;margin:12vh auto 0;text-align:center}
form.gate label{display:block;text-align:left;font-size:.9rem;color:var(--mut);margin-top:10px}
form.gate select,form.gate input{width:100%;margin:4px 0}
form.gate input[type=hidden]{display:none}
form.gate button{width:100%;margin-top:12px}
.gatemain{max-width:900px;margin:0 auto;padding:0 16px}
.brand .now{flex:1 1 100%;font-size:.8rem;opacity:.85;order:1}
.brand h1{order:0}.brand .pill{order:2}
@media(max-width:959px){.brand .now{display:none}}
.codecard{grid-template-columns:auto minmax(0,1fr)}
.codecard .lb{min-width:0}
.codecard .lb>span:first-child{overflow-wrap:anywhere}
@media(max-width:600px){.warnbar{font-size:.95rem;padding:12px}.warnbar .wi{font-size:1.5rem}}
.callout{border:2px dashed var(--acc);border-radius:12px;padding:12px 14px;margin:10px 0 16px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.dropcard{border:2px solid var(--acc)}
.dropgrid{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center}
@media (max-width:700px){.dropgrid{grid-template-columns:1fr}}
.btn.big{font-size:18px;padding:14px 22px}
kbd{font:600 12px/1 ui-monospace,monospace;border:1px solid var(--line,#ccc);border-bottom-width:2px;border-radius:5px;padding:2px 5px;background:var(--card,#fff)}
.recorders td{padding:6px 8px;vertical-align:top}.recorders td:first-child{white-space:nowrap}
.recgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.recgrid h4{margin:6px 0 2px}.recgrid ol{padding-left:20px}.recgrid li{margin:4px 0}
@media (max-width:760px){.recgrid{grid-template-columns:1fr}}
.obs{margin-top:12px;border-top:1px solid var(--line,#ddd);padding-top:10px}.obs summary{cursor:pointer}.obs ol{padding-left:20px}