:root{
  --accent:#2F4A7C;
  --paper:#F6F4EF; --surface:#fff; --surface-2:#FBFAF6; --sunk:#ECE8E0;
  --ink:#191A1C; --ink-2:#53555B; --ink-3:#86888E;
  --line:#DEDAD1; --line-strong:#BDB8AC;
  --ok:#2A6444; --ok-soft:#DCEBE2; --warn:#8A6100; --warn-soft:#F6EACB;
  --stop:#992A1E; --stop-soft:#F5DED9;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --paper:#0F1113; --surface:#171A1D; --surface-2:#1D2125; --sunk:#0A0C0E;
  --ink:#E9EAEC; --ink-2:#A7AAB0; --ink-3:#7A7D83;
  --line:#2A2E33; --line-strong:#3E434A;
  --ok:#62B686; --ok-soft:#15301F; --warn:#D7AC53; --warn-soft:#332815;
  --stop:#E0786A; --stop-soft:#361B18;
}}
:root[data-theme=dark]{
  --paper:#0F1113; --surface:#171A1D; --surface-2:#1D2125; --sunk:#0A0C0E;
  --ink:#E9EAEC; --ink-2:#A7AAB0; --ink-3:#7A7D83;
  --line:#2A2E33; --line-strong:#3E434A;
  --ok:#62B686; --ok-soft:#15301F; --warn:#D7AC53; --warn-soft:#332815;
  --stop:#E0786A; --stop-soft:#361B18;
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);
  font:15px/1.62 "Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
body.embed{background:transparent}
.bg-top{background:var(--surface);border-bottom:1px solid var(--line);padding:15px 22px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:baseline}
.bg-top h1{margin:0;font-size:18px;font-weight:700;letter-spacing:-.01em}
.bg-logo{max-height:28px;width:auto}
.bg-sub{font-size:12.5px;color:var(--ink-3);margin-right:auto}
.bg-si{font:11px/1.5 ui-monospace,Menlo,monospace;padding:3px 8px;border-radius:5px;
  background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent)}
.bg-wrap{display:grid;grid-template-columns:320px minmax(0,1fr);gap:18px;
  padding:18px 22px 36px;max-width:1240px;margin:0 auto;align-items:start}
@media (max-width:900px){.bg-wrap{grid-template-columns:1fr;padding:12px}.bg-rail{position:static!important}}
.bg-rail{position:sticky;top:14px;display:flex;flex-direction:column;gap:14px}
.bg-main{display:flex;flex-direction:column;gap:14px}
.bg-card{background:var(--surface);border:1px solid var(--line);border-radius:11px;
  box-shadow:0 1px 2px rgba(0,0,0,.04),0 12px 30px -24px rgba(0,0,0,.35)}
.bg-card>h2{margin:0;padding:12px 15px;border-bottom:1px solid var(--line);font-size:13px;font-weight:700;
  display:flex;justify-content:space-between;gap:10px}
.bg-card>h2 small{font-weight:400;color:var(--ink-3);font-size:11px}
.bg-b{padding:14px 15px;display:flex;flex-direction:column;gap:11px}
.bg-b>p{margin:0;font-size:13.5px;color:var(--ink-2)}
label{display:flex;flex-direction:column;gap:5px;font-size:12px;color:var(--ink-2)}
label.bg-ck{flex-direction:row;align-items:flex-start;gap:8px;font-size:12.5px;cursor:pointer}
label.bg-ck input{accent-color:var(--accent);margin:3px 0 0}
input[type=text],input[type=number],input[type=date],select,textarea{
  font:inherit;font-size:13.5px;padding:7px 9px;border-radius:7px;width:100%;
  border:1px solid var(--line-strong);background:var(--surface-2);color:var(--ink)}
textarea{resize:vertical;line-height:1.5}
input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible{
  outline:2px solid var(--accent);outline-offset:1px}
.bg-bad{margin:0;font-size:11.5px;color:var(--stop)}
.bg-verdict{padding:13px 15px;border-radius:10px;border:1px solid var(--line);background:var(--surface-2)}
.bg-verdict b{display:block;font-size:16px;letter-spacing:-.01em}
.bg-verdict span{font-size:12.5px;color:var(--ink-2)}
.bg-verdict.bg-pass{background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 30%,transparent)}
.bg-verdict.bg-pass b{color:var(--ok)}
.bg-verdict.bg-warn{background:var(--warn-soft);border-color:color-mix(in srgb,var(--warn) 30%,transparent)}
.bg-verdict.bg-warn b{color:var(--warn)}
.bg-verdict.bg-fail{background:var(--stop-soft);border-color:color-mix(in srgb,var(--stop) 30%,transparent)}
.bg-verdict.bg-fail b{color:var(--stop)}
.bg-gates{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.bg-gate{display:grid;grid-template-columns:20px minmax(0,1fr) auto;gap:10px;align-items:start;
  padding:9px 11px;border-radius:8px;background:var(--surface-2);border:1px solid var(--line)}
.bg-gate.bg-fail{background:var(--stop-soft);border-color:color-mix(in srgb,var(--stop) 22%,transparent)}
.bg-gate.bg-warn{background:var(--warn-soft);border-color:color-mix(in srgb,var(--warn) 22%,transparent)}
.bg-mk{font:600 13px/1.5 ui-monospace,Menlo,monospace}
.bg-gate.bg-pass .bg-mk{color:var(--ok)}
.bg-gate.bg-fail .bg-mk{color:var(--stop)}
.bg-gate.bg-warn .bg-mk{color:var(--warn)}
.bg-gate b{font-size:12.8px}
.bg-d{display:block;font-size:12px;color:var(--ink-2);line-height:1.5;margin-top:1px}
.bg-ref{font:500 10.5px/1.5 ui-monospace,Menlo,monospace;color:var(--ink-3);white-space:nowrap}
.bg-letter{margin:0;padding:26px 28px;background:var(--surface);border:1px solid var(--line-strong);
  border-radius:4px;font:14px/1.65 ui-monospace,"SFMono-Regular",Menlo,monospace;
  white-space:pre-wrap;word-break:break-word;overflow-x:auto}
.bg-blocked{margin:0;padding:20px;text-align:center;color:var(--ink-3);font-size:13.5px;line-height:1.7}
.bg-btns{display:flex;gap:9px;flex-wrap:wrap;margin-top:12px}
button{font:inherit;font-size:13px;font-weight:600;padding:8px 15px;border-radius:8px;cursor:pointer;
  border:1px solid var(--line-strong);background:var(--surface-2);color:var(--ink)}
button.bg-pri{background:var(--accent);border-color:var(--accent);color:#fff}
.bg-foot{max-width:1240px;margin:0 auto;padding:0 22px 36px}
.bg-foot p{font-size:11.5px;color:var(--ink-3);line-height:1.6;max-width:80ch}
@media print{.bg-top,.bg-rail,.bg-card>h2,.bg-btns,.bg-foot,.bg-verdict,.bg-gates,#bg-offer{display:none!important}
  body{background:#fff}.bg-wrap{display:block;padding:0}.bg-card{border:0;box-shadow:none}
  .bg-letter{border:0;padding:0}}