:root{--blue:#0967b2;--dark:#064676;--soft:#eaf7ff;--yellow:#ffc83d;--ink:#18364a;--muted:#587181;--line:#d8e9f4}*{box-sizing:border-box}body{margin:0;color:var(--ink);font-family:Arial,sans-serif;font-size:16px;line-height:1.7;background:#f7fbfe}a{color:var(--blue)}.container{width:min(900px,calc(100% - 32px));margin:auto}header{background:#fff;border-bottom:1px solid var(--line)}nav{min-height:76px;display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{font-weight:800;color:var(--dark);text-decoration:none}.back{font-weight:700;text-decoration:none}.hero{background:linear-gradient(120deg,var(--blue),var(--dark));color:#fff;padding:58px 0}.hero h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.1;margin:0 0 12px}.hero p{margin:0;color:#dcefff}.document{background:#fff;margin:34px auto 60px;padding:clamp(26px,5vw,54px);border:1px solid var(--line);border-radius:28px;box-shadow:0 18px 50px rgba(6,70,118,.09)}h2{color:var(--dark);font-size:1.45rem;margin-top:34px}h3{color:var(--dark)}li{margin:.4rem 0}.notice{background:var(--soft);border-left:5px solid var(--yellow);padding:16px 20px;border-radius:4px 16px 16px 4px}.updated{color:var(--muted);font-size:.92rem}footer{background:#072f4f;color:#cce2f0;padding:28px 0}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.footer-links a{color:#fff}@media(max-width:600px){nav{align-items:flex-start;flex-direction:column;padding:17px 0}.hero{padding:42px 0}.document{margin-top:20px;border-radius:20px}}