:root{--navy:#08162d;--blue:#1769ff;--cyan:#18c8d8;--ink:#152238;--muted:#64748b;--line:#dbe4f0;--bg:#f5f8ff;--card:#ffffff;--radius:24px;--shadow:0 22px 60px rgba(8,22,45,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:radial-gradient(circle at top left,rgba(23,105,255,.16),transparent 36%),linear-gradient(180deg,#f8fbff 0%,#eef4ff 100%);color:var(--ink);line-height:1.7}.container{width:min(1120px,calc(100% - 32px));margin:auto}.topbar{background:rgba(8,22,45,.94);color:#fff;position:sticky;top:0;z-index:10;backdrop-filter:blur(16px)}.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none;font-weight:800}.mark{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--blue),var(--cyan));box-shadow:0 12px 30px rgba(23,105,255,.32)}.brand small{display:block;color:#b9c7dc;font-weight:600;font-size:12px;margin-top:2px}.links{display:flex;gap:10px;flex-wrap:wrap}.links a{color:#dbe8ff;text-decoration:none;font-weight:700;padding:10px 14px;border-radius:999px}.links a:hover,.links a.active{background:rgba(255,255,255,.12);color:#fff}.hero{padding:72px 0 34px}.hero-card{background:linear-gradient(135deg,#0b1d3a,#123f8e);color:#fff;border-radius:34px;padding:44px;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero-card:after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:rgba(24,200,216,.24)}.eyebrow{display:inline-flex;gap:8px;align-items:center;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:8px 14px;border-radius:999px;color:#eaf3ff;font-weight:800;font-size:13px;letter-spacing:.06em;text-transform:uppercase}.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.05;margin:20px 0 14px}.hero p{font-size:18px;color:#d7e6ff;max-width:760px}.meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.pill{background:#fff;color:#12213a;border-radius:999px;padding:10px 16px;font-weight:800}.layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:26px;padding:28px 0 70px}.sidebar{position:sticky;top:100px;align-self:start;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 12px 34px rgba(8,22,45,.08)}.sidebar h2{font-size:16px;margin:0 0 12px}.toc{list-style:none;padding:0;margin:0;display:grid;gap:8px}.toc a{display:block;padding:9px 10px;border-radius:12px;text-decoration:none;color:#334155;font-weight:700}.toc a:hover{background:#eef5ff;color:var(--blue)}.content{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:38px;box-shadow:var(--shadow)}.content h1{display:none}.content h2{font-size:28px;line-height:1.25;margin:38px 0 14px;padding-top:16px;border-top:1px solid var(--line)}.content h2:first-of-type{margin-top:0;border-top:0;padding-top:0}.content h3{font-size:21px;margin:30px 0 10px;color:#102244}.content p{margin:0 0 16px;color:#334155}.content ul{margin:0 0 22px;padding-left:24px}.content li{margin:8px 0;color:#334155}.content a{color:#0b5fff;font-weight:800}.content code{background:#eef4ff;border:1px solid #d8e5fb;border-radius:8px;padding:2px 6px}.content hr{border:0;border-top:1px solid var(--line);margin:26px 0}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;margin:16px 0 22px}table{border-collapse:collapse;width:100%;min-width:560px}th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}th{background:#f0f6ff;color:#102244}.footer{background:#08162d;color:#dbe8ff;padding:30px 0;text-align:center}.footer a{color:#fff;font-weight:800}.notice{margin-top:18px;background:#fff7ed;border:1px solid #fed7aa;color:#7c2d12;padding:14px 16px;border-radius:18px;font-weight:700}@media(max-width:900px){.nav{height:auto;padding:16px 0;align-items:flex-start;flex-direction:column}.layout{grid-template-columns:1fr}.sidebar{position:static}.hero-card{padding:30px}.content{padding:24px}.links a{padding:8px 10px}.brand{align-items:flex-start}}