:root{--navy:#0f172a;--blue:#2563eb;--green:#22c55e;--text:#334155;--muted:#64748b;--line:#e2e8f0;--surface:#fff;--soft:#f8fafc;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{margin:0;color:var(--text);background:var(--soft);font-family:Arial,"Helvetica Neue",sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.container{width:min(1080px,calc(100% - 36px));margin:auto}.skip{position:fixed;top:-70px;left:18px;z-index:100;background:#fff;color:var(--navy);padding:10px 16px;border-radius:10px;box-shadow:0 8px 25px rgba(15,23,42,.16)}.skip:focus{top:18px}.topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.88);border-bottom:1px solid rgba(226,232,240,.9);backdrop-filter:blur(18px)}.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:11px;color:var(--navy);font-weight:800}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;color:#fff;background:linear-gradient(135deg,var(--blue),#1d4ed8);box-shadow:0 8px 20px rgba(37,99,235,.24)}.nav-links{display:flex;align-items:center;gap:20px;font-size:13px;font-weight:700}.nav-links a{color:var(--muted)}.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--blue)}.back{padding:9px 13px;border:1px solid var(--line);border-radius:10px}.hero{position:relative;overflow:hidden;padding:82px 0 118px;text-align:center;color:#fff;background:radial-gradient(circle at 78% 20%,rgba(96,165,250,.32),transparent 30%),linear-gradient(135deg,#0f172a,#1e3a8a)}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:56px 56px}.hero-inner{position:relative;max-width:750px}.label{display:inline-flex;padding:6px 13px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(255,255,255,.08);font-size:11px;font-weight:800;letter-spacing:.12em}.hero h1{margin:18px 0 12px;font-size:clamp(39px,6vw,62px);line-height:1.08;letter-spacing:-.045em}.hero p{margin:0 auto;max-width:650px;color:#cbd5e1;font-size:16px}.date{display:block;margin-top:22px;color:#bfdbfe;font-size:13px;font-weight:700}.layout{position:relative;display:grid;grid-template-columns:220px minmax(0,760px);gap:42px;align-items:start;justify-content:center;margin-top:-58px;padding-bottom:90px}.toc{position:sticky;top:94px;padding:20px;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:15px;box-shadow:0 14px 40px rgba(15,23,42,.07);backdrop-filter:blur(14px)}.toc strong{display:block;margin-bottom:10px;color:var(--navy);font-size:13px}.toc a{display:block;padding:5px 0;color:var(--muted);font-size:12px;line-height:1.4}.toc a:hover{color:var(--blue)}.document{padding:46px 52px;background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:0 24px 70px rgba(15,23,42,.09)}.intro{margin:0 0 35px;font-size:16px}.section{scroll-margin-top:94px;padding:29px 0;border-top:1px solid var(--line)}.section:first-of-type{padding-top:0;border-top:0}.section h2{margin:0 0 14px;color:var(--navy);font-size:23px;line-height:1.3;letter-spacing:-.02em}.section p{margin:0 0 14px}.section p:last-child{margin-bottom:0}.section ul{display:grid;gap:8px;margin:14px 0 0;padding:0;list-style:none}.section li{position:relative;padding-left:25px}.section li:before{content:"✓";position:absolute;top:5px;left:0;width:16px;height:16px;display:grid;place-items:center;border-radius:50%;color:#15803d;background:#dcfce7;font-size:9px;font-weight:900}.notice{margin:20px 0;padding:19px 21px;color:var(--navy);background:#eff6ff;border:1px solid #bfdbfe;border-left:4px solid var(--blue);border-radius:12px;font-weight:700}.commands{display:flex;flex-wrap:wrap;gap:11px;margin:18px 0}.command{padding:10px 14px;background:var(--soft);border:1px solid var(--line);border-radius:10px;font-size:13px}.command strong{color:var(--blue);font-size:15px}.contact{display:flex;align-items:center;justify-content:space-between;gap:22px;margin-top:16px;padding:20px 22px;color:#fff;background:linear-gradient(135deg,#1d4ed8,#2563eb);border-radius:14px}.contact small,.contact strong{display:block}.contact small{color:#bfdbfe;font-size:11px;letter-spacing:.08em}.contact a{flex:none;padding:9px 14px;color:#1d4ed8;background:#fff;border-radius:9px;font-size:13px;font-weight:800}.footer{padding:28px 0;color:#94a3b8;background:#080e1c}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px}.footer .brand{color:#fff}.footer-links{display:flex;gap:20px}.footer-links a:hover{color:#fff}@media(max-width:850px){.layout{grid-template-columns:minmax(0,760px);margin-top:-46px}.toc{display:none}}@media(max-width:620px){.container{width:min(100% - 26px,1080px)}.nav{height:66px}.brand span:last-child{display:none}.nav-links{gap:10px}.nav-links a:not(.back){display:none}.hero{padding:65px 0 88px}.hero p{font-size:14px}.layout{margin-top:-34px;padding-bottom:60px}.document{padding:30px 21px;border-radius:17px}.section{padding:24px 0}.section h2{font-size:20px}.contact{align-items:flex-start;flex-direction:column}.footer-inner{flex-direction:column;text-align:center}.footer-links{flex-wrap:wrap;justify-content:center}}