:root{--bg:#f7f8fa;--paper:#fff;--ink:#17202a;--muted:#667085;--blue:#164c82;--cyan:#087d91;--line:#dce2e9;--radius:12px}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:system-ui,-apple-system,Noto Sans KR,sans-serif;font-size:18px;line-height:1.75}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:14px;max-width:1120px;margin:auto;padding:18px 20px;display:flex}.brand{letter-spacing:.03em;color:var(--ink);white-space:nowrap;font-size:16px;font-weight:850}.brand span{color:var(--blue)}.header-actions{align-items:center;gap:12px;font-size:14px;display:flex}.header-actions a,summary{align-items:center;min-height:44px;display:flex}.menu{position:relative}.menu summary{cursor:pointer;list-style:none}.menu nav{border:1px solid var(--line);z-index:10;background:#fff;border-radius:12px;width:240px;padding:16px;position:absolute;top:48px;right:0;box-shadow:0 8px 32px #17202a18}.menu nav a{padding:6px;display:block}main{max-width:1080px;margin:auto;padding:0 20px 60px}h1{letter-spacing:-.04em;margin:18px 0;font-size:36px;line-height:1.35}h2{letter-spacing:-.02em;font-size:25px;line-height:1.4}h3{font-size:20px}.hero{max-width:720px;padding:44px 0 34px}.eyebrow{letter-spacing:.13em;color:var(--cyan);font-size:12px;font-weight:750}.muted,.meta{color:var(--muted)}.meta{font-size:14px}.search-form{background:var(--paper);border:1px solid #bbc9d7;border-radius:10px;gap:4px;margin:24px 0 16px;padding:5px;display:flex}.search-form input{width:100%;min-width:0;font:inherit;background:0 0;border:0;padding:10px;font-size:16px}.search-form button{background:var(--blue);color:#fff;cursor:pointer;white-space:nowrap;border:0;border-radius:7px;padding:10px 17px;font-size:15px}.chips{flex-wrap:wrap;gap:8px;display:flex}.chips a{border:1px solid var(--line);background:#fff;border-radius:6px;padding:5px 12px;font-size:14px}.section{margin:30px 0 42px}.section-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.section-heading a{font-size:14px}.grid{grid-template-columns:1fr;gap:14px;display:grid}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);color:var(--ink);padding:23px;display:block}.card:hover{border-color:#7c9bb7;text-decoration:none}.card h3{margin:4px 0 7px}.card p{margin:6px 0;font-size:16px}.card .meta{font-size:14px}.category-no{color:var(--cyan);font-variant-numeric:tabular-nums;font-size:13px}.article{max-width:740px;margin:32px auto}.breadcrumb{font-size:14px}.article .intro{color:var(--muted);font-size:19px}.summary-box{border-left:3px solid var(--blue);background:#edf3f9;border-radius:0 10px 10px 0;margin:28px 0;padding:20px 22px}.summary-box h2{margin:0 0 10px;font-size:18px}.summary-box ul{margin:0;padding-left:21px}.article h2{margin-top:38px;scroll-margin-top:20px}.article p{margin:17px 0}.article details.toc{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:10px 0}.toc summary{cursor:pointer;font-size:16px}.toc a{padding:5px 0;font-size:15px;display:block}.engineer{background:#f0f6f7;border:1px solid #cbdde1;border-radius:12px;margin:30px 0;padding:22px}.engineer h2{margin-top:10px}.engineer .eyebrow{display:block}.article table{border-collapse:collapse;width:100%;font-size:15px;display:block;overflow:auto}.article td,.article th{border:1px solid var(--line);min-width:90px;padding:10px}.sources{border-top:1px solid var(--line);margin-top:32px;padding-top:18px;font-size:14px}.sources a{overflow-wrap:anywhere}.empty{border:1px dashed #afbbc9;border-radius:12px;margin-top:24px;padding:25px}.glossary{border:1px solid var(--line);background:#fff;border-radius:12px;margin:16px 0;padding:20px}.glossary dt{font-weight:750}.glossary dd{margin:8px 0 0;font-size:17px}footer{border-top:1px solid var(--line);max-width:1080px;margin:auto;padding:30px 20px;font-size:14px}footer p{margin:8px 0}.skip{z-index:100;background:#fff;padding:12px;position:absolute;top:-80px;left:20px}.skip:focus{top:10px}@media (width>=760px){.hero{padding:64px 0 42px}h1{font-size:48px}.grid{grid-template-columns:repeat(3,1fr)}.article h1{font-size:42px}.brand{font-size:20px}header{padding:24px 20px}.hero .search-form{max-width:620px}}@media (prefers-reduced-motion:no-preference){.card{transition:border-color .15s}}