:root{--cyan:#00d4ff;--blue:#0788ff;--deep:#0004ff;--ink:#121417;--slate:#667085;--line:#dfe7f0;--cloud:#f6f9fc;--white:#fff;--max:900px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:radial-gradient(circle at 15% 0,rgba(0,212,255,.13),transparent 25%),linear-gradient(180deg,#f7fbff,#fff 34%,#f7fbff);line-height:1.7;-webkit-font-smoothing:antialiased}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.wrap{width:min(var(--max),calc(100% - 36px));margin:auto}.top{position:sticky;top:10px;z-index:20;margin:10px auto 0;width:min(1080px,calc(100% - 20px));border:1px solid rgba(255,255,255,.82);background:rgba(255,255,255,.78);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:20px;box-shadow:0 10px 30px rgba(24,45,70,.08)}.top-inner{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;gap:18px}.top img{width:185px}.back{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 16px;border-radius:999px;background:#eef7ff;color:#056bc5;font-size:13px;font-weight:800}.back:hover{text-decoration:none;background:#dff1ff}.hero{padding:76px 0 30px}.eyebrow{font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--blue);font-weight:900}.hero h1{font-size:clamp(38px,6vw,62px);letter-spacing:-.045em;line-height:1.02;margin:10px 0 18px}.hero p{font-size:17px;color:var(--slate);max-width:720px}.updated{display:inline-flex;border:1px solid #dbeafe;background:#eff8ff;color:#075985;border-radius:999px;padding:7px 12px;font-size:12px;font-weight:800}.layout{display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:start;padding:28px 0 80px}.toc{position:sticky;top:100px;padding:18px;border-radius:20px;background:rgba(255,255,255,.7);border:1px solid rgba(255,255,255,.9);box-shadow:0 12px 36px rgba(24,45,70,.07)}.toc strong{font-size:12px;text-transform:uppercase;letter-spacing:.1em}.toc a{display:block;margin-top:10px;color:var(--slate);font-size:12px;font-weight:700}.content{padding:30px 34px;border-radius:26px;background:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.95);box-shadow:0 18px 50px rgba(24,45,70,.09)}section{scroll-margin-top:110px;padding:4px 0 24px;margin-bottom:18px;border-bottom:1px solid var(--line)}section:last-child{border-bottom:0;margin-bottom:0}h2{font-size:24px;letter-spacing:-.025em;line-height:1.25;margin:12px 0}h3{font-size:17px;margin:20px 0 5px}p{margin:0 0 12px;color:#343b44}ul,ol{margin:8px 0 14px;padding-left:22px;color:#343b44}li{margin:6px 0}.notice{padding:16px 18px;border-radius:16px;background:#eff8ff;border:1px solid #cfeafe;color:#075985;font-size:14px}.warning{background:#fff8e8;border-color:#fde3a7;color:#784b00}.contact{display:grid;gap:8px;padding:18px;border-radius:18px;background:var(--cloud);border:1px solid var(--line)}footer{padding:0 0 36px;color:var(--slate);font-size:12px}.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:20px}.foot-links{display:flex;gap:14px;flex-wrap:wrap}.foot-links a{color:var(--slate);font-weight:700}@media(max-width:760px){.layout{grid-template-columns:1fr}.toc{position:relative;top:auto}.content{padding:24px 20px}.top img{width:155px}.back{font-size:12px;padding:0 12px}.hero{padding-top:54px}}