:root{
  --bg:#f6f8ff; --panel:#ffffff; --panel-2:#ffffff; --line:rgba(17,24,39,.10);
  --text:#111827; --muted:#475467; --accent:#7c3cff; --accent-2:#0879ff;
  --brand:#ff2b9d; --soft:#f4f7ff; --shadow:0 18px 50px rgba(15,23,42,.10);
  --max:1180px; --radius:18px;
}
*{box-sizing:border-box} html,body{margin:0;padding:0}
body{font:16px/1.58 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Helvetica,Arial,sans-serif;color:var(--text);background:radial-gradient(circle at top left,#f1e8ff 0,#fff 34%,#eef7ff 100%);}
a{color:var(--accent);text-decoration:none} a:hover{text-decoration:underline}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(17,24,39,.08)}
.header-inner{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 24px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.2px}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:11px;background:linear-gradient(135deg,#6aa8ff,#8fe3c6);color:#07111e;font-weight:800;box-shadow:var(--shadow)}
.top-nav{display:flex;flex-wrap:wrap;gap:10px}
.top-nav a{color:#111827;padding:8px 12px;border-radius:999px;border:1px solid transparent;font-weight:600}
.top-nav a.active,.top-nav a:hover{background:linear-gradient(135deg,rgba(124,60,255,.12),rgba(8,121,255,.10));border-color:rgba(124,60,255,.18);color:#111827;text-decoration:none}
.top-nav a.search-help,
.top-nav a.ai-assistant,
.top-nav a.download-link{background:linear-gradient(135deg,#7c3cff,#0879ff);color:#ffffff;border-color:transparent;box-shadow:0 8px 22px rgba(124,60,255,.18)}
.top-nav a.search-help:hover,
.top-nav a.ai-assistant:hover,
.top-nav a.download-link:hover{background:linear-gradient(135deg,#8f5dff,#0088ff);color:#ffffff;text-decoration:none}
.shell{max-width:var(--max);margin:0 auto;padding:28px 24px 50px;display:grid;grid-template-columns:290px minmax(0,1fr);gap:28px}
.sidebar{position:sticky;top:86px;align-self:start;background:rgba(255,255,255,.94);border:1px solid rgba(17,24,39,.08);border-radius:18px;padding:18px;box-shadow:var(--shadow)}
.search-wrap input{width:100%;padding:13px 14px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--text);outline:none}
.search-wrap input:focus{border-color:rgba(124,60,255,.40);box-shadow:0 0 0 4px rgba(124,60,255,.12)}
.search-results{margin-top:10px;display:none;background:#fff;border:1px solid var(--line);border-radius:14px;max-height:360px;overflow:auto}
.search-results.visible{display:block}
.result-item{display:block;padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.06)}
.result-item:last-child{border-bottom:none}
.result-item strong{display:block;color:var(--text)} .result-item small{display:block;color:var(--muted);margin-top:3px}
.side-links{margin-top:18px;display:flex;flex-direction:column;gap:6px}
.side-links a{color:#334155;padding:9px 10px;border-radius:10px;font-weight:600}
.side-links a:hover,.side-links a.current{color:#111827;background:linear-gradient(135deg,rgba(124,60,255,.10),rgba(8,121,255,.08));text-decoration:none}
.content{min-width:0}
.hero{background:radial-gradient(circle at top right,rgba(124,60,255,.14),transparent 32%),radial-gradient(circle at left top,rgba(8,121,255,.12),transparent 28%),var(--panel);border:1px solid rgba(17,24,39,.08);border-radius:24px;padding:30px;box-shadow:var(--shadow)}
.hero h1{margin:0 0 10px;font-size:2.2rem;line-height:1.12} .hero p{margin:0;color:var(--muted);max-width:74ch}
.pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.pill{padding:7px 11px;border-radius:999px;background:linear-gradient(135deg,rgba(124,60,255,.10),rgba(8,121,255,.08));color:var(--text);border:1px solid rgba(124,60,255,.18);font-size:.94rem;font-weight:600}
section{margin-top:22px;background:var(--panel);border:1px solid rgba(17,24,39,.08);border-radius:20px;padding:26px;box-shadow:var(--shadow)}
h2{margin:0 0 14px;font-size:1.55rem} h3{margin:0 0 8px;font-size:1.08rem}
p,li{color:#334155} ul,ol{padding-left:22px} li+li{margin-top:6px}
.note,.muted{color:var(--muted)}
.grid-2,.grid-3{display:grid;gap:16px;margin-top:14px} .grid-2{grid-template-columns:repeat(2,minmax(0,1fr))} .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid rgba(17,24,39,.08);border-radius:16px;padding:18px}
.callout{margin-top:16px;background:rgba(143,227,198,.10);border-left:4px solid var(--accent-2);padding:14px 16px;border-radius:12px}
.steps{counter-reset:step;margin:16px 0 0;padding:0;list-style:none}
.steps li{display:grid;grid-template-columns:34px 1fr;gap:12px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid rgba(17,24,39,.08);border-radius:16px;padding:14px 16px}
.steps li+li{margin-top:10px}
.steps li::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:999px;background:rgba(118,183,255,.14);color:var(--accent);font-weight:700}
.example{background:#f8fbff;border:1px solid rgba(17,24,39,.08);border-radius:14px;padding:14px 16px;margin-top:12px}
footer{color:var(--muted);font-size:.94rem;padding:28px 6px 18px}
@media (max-width:980px){.shell{grid-template-columns:1fr}.sidebar{position:static}.grid-2,.grid-3{grid-template-columns:1fr}.header-inner{flex-direction:column;align-items:flex-start}.top-nav{width:100%;gap:8px}.top-nav a{white-space:normal;line-height:1.2}}@media (max-width:640px){.header-inner{padding:12px 14px}.top-nav{display:flex;flex-wrap:wrap}.top-nav a{flex:1 1 auto;min-width:0}}