*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{color:#17243a;background:#f5f8fc;margin:0;font:16px/1.85 -apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}a{color:#175ecc;text-underline-offset:4px}a:hover{color:#103e8b}a:focus-visible,summary:focus-visible{outline-offset:5px;outline:3px solid #2474e9}.wrap{width:min(1080px,100% - 40px);margin:auto}header{background:#ffffffed;border-bottom:1px solid #e1e8f2}header .wrap{justify-content:space-between;align-items:center;gap:20px;padding:18px 0;display:flex}.brand{color:#17243a;align-items:center;gap:12px;font-size:19px;font-weight:700;text-decoration:none;display:flex}.brand img{border-radius:12px;width:42px;height:42px}nav{gap:24px;font-size:14px;display:flex}nav a{color:#52627a;text-decoration:none}nav a[aria-current]{color:#175ecc;font-weight:700}.hero{padding:64px 0 38px}.eyebrow{letter-spacing:2px;color:#175ecc;font-size:12px;font-weight:700}.hero h1{letter-spacing:-1px;margin:14px 0 20px;font-size:clamp(34px,5vw,52px);line-height:1.25}.lead{color:#52627a;max-width:700px;font-size:18px}.meta{color:#65748b;margin-top:24px;font-size:13px}.chips{flex-wrap:wrap;gap:10px;margin-top:24px;display:flex}.chips span{color:#255793;background:#e7effc;border-radius:30px;padding:5px 14px;font-size:13px}.layout{grid-template-columns:210px minmax(0,1fr);align-items:start;gap:32px;margin-bottom:64px;display:grid}.toc{padding:10px 0;position:sticky;top:24px}.toc b{letter-spacing:2px;color:#69778b;font-size:12px}.toc a{color:#53627a;padding:7px 0;font-size:14px;text-decoration:none;display:block}.paper{background:#fff;border:1px solid #e0e8f3;border-radius:24px;min-width:0;padding:36px 42px}.paper section+section{border-top:1px solid #edf1f6;margin-top:32px;padding-top:24px}h2{margin:0 0 14px;font-size:22px;line-height:1.5}h3{margin:20px 0 8px;font-size:17px}p{margin:0 0 14px}ul,ol{margin:12px 0;padding-left:22px}li+li{margin-top:8px}.note{color:#304c73;background:#edf4ff;border-left:3px solid #3275db;border-radius:0 14px 14px 0;margin:22px 0;padding:20px 24px}.cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:0 0 36px;display:grid}.card{background:#fff;border:1px solid #e0e8f3;border-radius:20px;padding:26px}.number{color:#175ecc;font-size:13px;font-weight:700}.card h2{margin-top:12px;font-size:19px}.card p{color:#596a81;margin:0;font-size:14px}details{border-bottom:1px solid #e5ebf3;padding:17px 0}summary{cursor:pointer;font-weight:600;line-height:1.6}details p{color:#52627a;margin:12px 0 0}.button{color:#fff;background:#2165d5;border-radius:12px;padding:11px 22px;font-weight:600;text-decoration:none;display:inline-block}.button:hover{color:#fff;background:#164ca5}.email{overflow-wrap:anywhere}.contact{background:#edf4ff;border-radius:20px;margin-top:24px;padding:26px}.contact p{font-size:14px}.muted{color:#64738a}footer{color:#65748b;border-top:1px solid #e0e8f3;padding:28px 0 36px;font-size:13px}footer .wrap{flex-wrap:wrap;justify-content:space-between;gap:10px 28px;display:flex}.skip{z-index:10;background:#fff;padding:8px;position:absolute;top:-80px;left:16px}.skip:focus{top:10px}@media (width<=700px){.wrap{width:calc(100% - 32px)}header .wrap{flex-wrap:wrap;gap:12px}nav{gap:20px}.brand{font-size:17px}.hero{padding-top:36px}.hero h1{font-size:36px}.lead{font-size:16px}.layout{grid-template-columns:1fr;gap:16px}.toc{flex-wrap:wrap;gap:4px 18px;padding:0 0 12px;display:flex;position:static}.toc b{width:100%}.toc a{padding:3px 0}.paper{border-radius:18px;padding:24px 20px}.cards{grid-template-columns:1fr;gap:12px}.card{padding:22px}.card h2{margin-top:4px}.contact{padding:20px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{header,.toc,.skip,.button{display:none}.layout{display:block}.paper{border:none;padding:0}.hero{padding:20px 0}.wrap{width:100%}body{background:#fff}.cards{display:block}details{break-inside:avoid}}