:root{--ink:#10213a;--muted:#5d6a7d;--blue:#1559aa;--blue2:#2f78c8;--soft:#f3f7fc;--line:#dce5f0;--white:#fff;--dark:#0c1b2e;--warn:#fff8e7;--ok:#edf8f2;--r:22px;--shadow:0 14px 40px rgba(26,57,96,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.72}a{color:var(--blue)}header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}.shell{max-width:1100px;margin:auto;padding:0 22px}.head{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{text-decoration:none;color:var(--ink);font-weight:900;font-size:1.22rem}.brand b{color:var(--blue)}nav{display:flex;gap:18px;flex-wrap:wrap}nav a{text-decoration:none;color:#334155;font-weight:700;font-size:.93rem}.hero{background:linear-gradient(135deg,#eef5ff 0,#fff 66%);border-bottom:1px solid var(--line)}.hero .shell{padding-top:58px;padding-bottom:58px}.eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;font-weight:900;color:var(--blue);background:#e8f1ff;padding:6px 10px;border-radius:999px}h1{font-size:clamp(2.1rem,5vw,4rem);line-height:1.05;letter-spacing:-.045em;margin:.25em 0 .3em}h2{font-size:clamp(1.45rem,3vw,2.15rem);line-height:1.18;margin:1.6em 0 .45em}h3{font-size:1.18rem}.lead{font-size:1.15rem;color:#40506a;max-width:820px}.section{padding:42px 0 70px}.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px}.article,.side,.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}.article{padding:30px}.side{padding:22px;height:max-content;position:sticky;top:94px}.side a{display:block;padding:8px 0;text-decoration:none;font-weight:750;border-bottom:1px solid #eef2f7}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.card{padding:22px}.card h3{margin-top:0}.notice{background:var(--warn);border:1px solid #f0d99d;border-radius:16px;padding:16px;margin:20px 0}.ok{background:var(--ok);border:1px solid #c6e8d4;border-radius:16px;padding:16px;margin:20px 0}.meta{background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:16px}.meta strong{display:block}.check{padding-left:1.2em}.check li{margin:.4em 0}.footer{background:var(--dark);color:#dce8f5;padding:38px 0;margin-top:50px}.footer a{color:#fff}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.small{font-size:.9rem;color:var(--muted)}@media(max-width:780px){.head{height:auto;padding-top:14px;padding-bottom:14px;align-items:flex-start;flex-direction:column}nav{gap:10px}.layout,.grid,.footer-grid{grid-template-columns:1fr}.side{position:static}.article{padding:22px}.hero .shell{padding-top:40px;padding-bottom:40px}}