:root{--ink:#123b4c;--muted:#56707b;--line:#dce7e9;--accent:#116f75;--bg:#f7faf9;--mint:#eaf7f2}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:white;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;line-height:1.85}a{color:#116b79}button,input{font:inherit}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #4ba6ab;outline-offset:3px}.mg-wrap{max-width:1120px;width:calc(100% - 36px);margin:auto}.mg-skip{position:absolute;top:-100px;left:12px;background:#fff;padding:8px}.mg-skip:focus{top:5px;z-index:10}.mg-top{border-bottom:1px solid var(--line);background:#fff}.mg-top-in{display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:72px}.mg-brand{font-size:21px;color:#154b57;font-weight:900;text-decoration:none;white-space:nowrap}.mg-brand small{font-size:10px;display:block;margin-top:-9px;letter-spacing:.1em;font-weight:600}.mg-top nav{display:flex;gap:19px;flex-wrap:wrap;font-size:13px;font-weight:800}.mg-top nav a{text-decoration:none}.mg-top nav a[aria-current]{color:#0b7b77}.mg-crumb{margin:18px 0 25px;font-size:12px;color:var(--muted)}.mg-hero{border-radius:28px;background:linear-gradient(118deg,#e7f6ef 0%,#f6faf9 75%);padding:clamp(25px,5vw,54px);border:1px solid #d7e8df}.mg-overline{font-size:11px;font-weight:900;letter-spacing:.12em;color:#15847b}.mg-hero h1{font-size:clamp(25px,4vw,42px);line-height:1.4;letter-spacing:-.045em;margin:12px 0 16px}.mg-lead{max-width:790px;font-size:clamp(14px,1.7vw,17px);line-height:2}.mg-hero-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:19px}.mg-hero-tags span{font-weight:800;font-size:12px;padding:5px 12px;border-radius:100px;background:white;color:#216973;border:1px solid #c9e7e0}.mg-updated{font-size:11px;color:#496e74;margin-top:18px}.mg-intro{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:30px 0}.mg-intro>div{border:1px solid var(--line);border-radius:15px;padding:18px;display:flex;flex-direction:column;gap:6px}.mg-intro strong{font-size:15px}.mg-intro span{font-size:12px;color:var(--muted)}.mg-intro a{font-size:12px;font-weight:800;margin-top:auto}.mg-search-panel{padding:24px;border:1px solid #cfe7df;border-radius:18px;background:#f0faf6;margin:30px 0 35px}.mg-search-panel h2{font-size:22px;margin:0 0 9px}.mg-search-panel label{font-size:12px;font-weight:800;display:block;margin-bottom:6px}.mg-search-panel input{border:1px solid #b7d9d2;background:#fff;border-radius:10px;padding:14px;width:100%;font-size:16px;min-width:0}.mg-search-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:9px}.mg-search-row button{border:0;background:transparent;color:#136d75;font-size:12px;font-weight:800;cursor:pointer}.mg-search-row span{font-size:12px;color:var(--muted)}.mg-category-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:17px}.mg-jump{background:white;border:1px solid #c9e6dc;border-radius:100px;padding:7px 12px;text-decoration:none;font-weight:850;font-size:12px}.mg-jump small{color:#658489;margin-left:4px}.mg-section{margin:0 0 37px;scroll-margin-top:25px}.mg-section-head{padding:0 0 13px;border-bottom:1px solid var(--line);margin-bottom:19px}.mg-section-head>span{font-size:11px;color:#187c7c;font-weight:900}.mg-section-head h2{font-size:clamp(21px,2.6vw,27px);margin:0}.mg-section-head p{font-size:13px;color:var(--muted);margin:5px 0 0}.mg-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.mg-term{border:1px solid #dbe7e9;border-radius:15px;background:#fff;padding:20px;scroll-margin-top:18px;min-width:0}.mg-term:target{outline:3px solid #8fd7c5}.mg-term h3{font-size:18px;margin:0 0 7px;line-height:1.5}.mg-term h3 a{color:var(--ink);text-decoration:none}.mg-anchor{color:#a1b8b6;font-size:13px}.mg-term>p{font-size:13px;margin:8px 0 12px}.mg-term .mg-example,.mg-term .mg-note{font-size:12px;line-height:1.9;border-radius:10px;padding:12px 14px;margin:9px 0}.mg-example{background:#ecf8f5;color:#25566a}.mg-note{background:#f6f7f8;color:#4b6269}.mg-example strong,.mg-note strong{display:block;font-size:11px;margin-bottom:2px}.mg-example strong{color:#148076}.mg-note strong{color:#636f82}.mg-tool{font-weight:850;font-size:12px;display:inline-block;margin-top:4px}.mg-related{padding:28px;border-radius:20px;background:#163e4b;color:#fff;margin:45px 0}.mg-related h2{font-size:22px;margin:0 0 18px}.mg-related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.mg-related-grid a{display:flex;flex-direction:column;gap:6px;background:#fff;border-radius:12px;padding:18px;color:#17475a;text-decoration:none}.mg-related-grid strong{font-size:15px}.mg-related-grid span{color:#58717b;font-size:12px}.mg-sources{margin:40px 0;border-top:1px solid var(--line);padding-top:22px}.mg-sources h2{font-size:21px}.mg-sources p,.mg-sources li{font-size:13px}.mg-source-links{padding-left:20px;line-height:2.2}.mg-disclaimer{color:var(--muted);font-size:12px!important}.mg-back{display:flex;flex-wrap:wrap;gap:16px;margin:22px 0 45px;font-size:13px;font-weight:800}.mg-empty{border:1px solid var(--line);border-radius:12px;padding:24px}.mg-footer{background:#f5f9f9;padding:25px 0;color:#345663;font-size:12px}.mg-footer nav{display:flex;flex-wrap:wrap;gap:13px}.mg-footer small{display:block;margin-top:17px}.mg-term[hidden],.mg-section[hidden],.mg-empty[hidden]{display:none!important}@media(max-width:800px){.mg-intro,.mg-related-grid{grid-template-columns:1fr}.mg-grid{grid-template-columns:1fr}.mg-top-in{align-items:flex-start;flex-direction:column;padding:13px 0;gap:6px}.mg-top nav{gap:12px}.mg-hero{padding:23px}.mg-search-panel{padding:18px}.mg-term{padding:18px}}