:root{
  --bg:#f5f7fb; --panel:#fff; --text:#111827; --muted:#64748b; --line:#e5e7eb;
  --blue:#2563eb; --blue-50:#eff6ff; --blue-100:#dbeafe; --ink:#0f172a;
  --green:#10b981; --shadow:0 16px 38px rgba(15,23,42,.08); --radius:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"Noto Sans",sans-serif;line-height:1.72;font-size:17px}
a{color:var(--blue);text-decoration:none;word-break:break-word}a:hover{text-decoration:underline}
.topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar-inner{max-width:1320px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 28px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:24px;letter-spacing:-.02em}.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#2563eb,#14b8a6);box-shadow:0 8px 18px rgba(37,99,235,.24)}
.actions{display:flex;gap:12px;align-items:center}.select,.btn{height:42px;border:1px solid var(--line);background:#fff;border-radius:12px;padding:0 16px;color:#0f172a;font-size:15px}.btn{cursor:pointer}.btn:hover{border-color:#bfdbfe;background:#f8fbff;text-decoration:none}.hamburger{display:none}
.shell{max-width:1320px;margin:28px auto 60px;display:grid;grid-template-columns:270px minmax(0,1fr);gap:28px;padding:0 28px}.sidebar{position:sticky;top:100px;align-self:start;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:var(--radius);padding:14px;max-height:calc(100vh - 130px);overflow:auto;box-shadow:0 8px 26px rgba(15,23,42,.05)}
.nav-title{font-weight:800;color:#111827;margin:12px 12px 8px}.nav a{display:block;color:#64748b;padding:9px 14px;border-radius:11px;font-size:14px;line-height:1.35}.nav a:hover{background:#f1f5f9;color:#111827;text-decoration:none}.nav a.active{background:#eef4ff;color:#1d4ed8;font-weight:700}.nav a.depth-3,.nav a.depth-4,.nav a.depth-5,.nav a.depth-6{padding-left:28px;font-size:13px}.nav-empty{color:#94a3b8;font-size:14px;padding:9px 14px}
.content{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:34px;overflow:hidden}.notice{display:flex;gap:12px;align-items:flex-start;border:1px solid #bfdbfe;background:var(--blue-50);color:#1e3a8a;border-radius:16px;padding:16px 18px;margin:4px 0 34px}.globe{width:20px;height:20px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#fff 0 10%,#22c55e 11% 42%,#2563eb 43%);flex:0 0 auto;margin-top:4px}
.doc h1,.doc h2,.doc h3,.doc h4{line-height:1.25;color:#111827;letter-spacing:-.025em}.doc h1{font-size:38px;margin:12px 0 14px}.doc h2{font-size:30px;margin:36px 0 16px;padding-top:22px;border-top:1px solid var(--line)}.doc h2:first-child{border-top:0;padding-top:0}.doc h3{font-size:23px;margin:26px 0 10px}.doc h4{font-size:19px;margin:24px 0 10px}.doc p{margin:10px 0}.doc strong{font-weight:800}.doc hr{border:0;border-top:1px solid var(--line);margin:28px 0}.doc ul,.doc ol{padding-left:26px}.doc li{margin:6px 0}.doc blockquote{margin:18px 0;padding:12px 18px;border-left:4px solid #bfdbfe;background:#f8fbff;color:#334155;border-radius:0 12px 12px 0}
.doc pre{margin:0;background:#0f172a;color:#f8fafc;border-radius:16px;padding:18px 20px;overflow:auto;font-size:15px;line-height:1.75;white-space:pre;box-shadow:inset 0 0 0 1px rgba(255,255,255,.05)}.doc code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace}.doc :not(pre)>code{background:#f1f5f9;border:1px solid #e2e8f0;border-radius:7px;padding:2px 6px;color:#0f172a;word-break:break-word}.code-wrap{position:relative;margin:16px 0}.copy{position:absolute;top:10px;right:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;border-radius:9px;padding:6px 10px;font-size:12px;cursor:pointer}.copy:hover{background:rgba(255,255,255,.15)}
.doc img{display:block;max-width:100%;height:auto;margin:16px 0 24px;border:1px solid var(--line);background:#f8fafc;border-radius:16px;box-shadow:0 8px 24px rgba(15,23,42,.06)}
.doc table{border-collapse:separate;border-spacing:0;width:100%;overflow:hidden;border:1px solid var(--line);border-radius:14px;margin:16px 0}.doc th,.doc td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left}.doc tr:last-child td{border-bottom:0}.doc th{background:#f8fafc;font-weight:800}.footer-note{margin-top:26px;border-radius:16px;background:#f8fafc;border:1px solid var(--line);padding:16px;color:#475569;font-size:14px}.hidden{display:none!important}
@media (max-width:900px){.topbar-inner{padding:16px}.brand{font-size:19px}.hamburger{display:inline-flex}.shell{display:block;padding:0 16px;margin-top:16px}.sidebar{position:fixed;left:16px;right:16px;top:76px;z-index:30;max-height:70vh;display:none}.sidebar.open{display:block}.content{padding:22px}.doc h1{font-size:30px}.doc h2{font-size:25px}.actions{gap:8px}.select,.btn{padding:0 10px}.brand-mark{width:28px;height:28px}}
@media print{.topbar,.sidebar,.notice,.footer-note{display:none}.shell{display:block;margin:0;padding:0}.content{box-shadow:none;border:0;padding:0}.doc img{break-inside:avoid}.doc h2,.doc h3,.doc h4,pre{break-after:avoid}.doc pre{white-space:pre-wrap}body{background:#fff;font-size:13px}}


/* Google Translate integration */
#google_translate_element{position:absolute;left:-9999px;top:-9999px;width:1px;height:1px;overflow:hidden}
.goog-te-banner-frame.skiptranslate{display:none!important}
body{top:0!important}
body > .skiptranslate{display:none!important}
.goog-te-gadget{font-size:0!important}
.notranslate{unicode-bidi:plaintext}