@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700&family=Noto+Serif+JP:wght@500;600&display=swap');
:root{--paper:#f8f8f3;--ink:#253d39;--muted:#65766f;--green:#174e49;--line:#dce3da;--white:#fff;--mint:#eaf1e9}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font-family:'Noto Sans JP',sans-serif;font-size:14px;line-height:1.8}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}button,a,input{ -webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #c08a32;outline-offset:4px}header{max-width:1440px;margin:auto;height:90px;padding:0 48px;display:flex;align-items:center;gap:32px;border-bottom:1px solid var(--line)}.brand{font-size:20px;font-weight:700;letter-spacing:.04em;display:flex;align-items:center;gap:11px}.brandmark{display:grid;place-items:center;color:var(--paper);background:var(--green);border-radius:7px;width:34px;height:34px;font-size:26px}.brand-sub{font-size:9px;letter-spacing:.16em;font-weight:500;margin-left:8px;align-self:center}.edition{margin-left:auto;border:1px solid var(--line);padding:4px 11px;border-radius:4px;font-size:10px;color:var(--muted)}.edition span{margin-left:12px;color:var(--green)}nav{display:flex;gap:26px;margin-left:auto;font-size:12px}nav a:hover{text-decoration:underline}main{max-width:1440px;margin:auto;padding:0 48px}.intro{padding:56px 0 36px;display:flex;align-items:center;justify-content:space-between}.eyebrow{font-size:10px;letter-spacing:.2em;font-weight:600;color:var(--green);display:flex;align-items:center;gap:10px}.eyebrow span{height:6px;width:6px;border-radius:50%;background:var(--green)}h1{font-family:'Noto Serif JP',serif;font-size:46px;letter-spacing:.04em;line-height:1.5;margin:16px 0 19px;font-weight:500}h1 em{font-style:normal;color:var(--green)}.lead{font-size:13px;line-height:2.2;color:var(--muted);margin:0}.intro-side{width:31%;border-left:1px solid var(--line);padding:15px 0 15px 40px}.series{font-size:10px;letter-spacing:.12em;color:var(--muted)}.intro-side p{font-family:'Noto Serif JP',serif;font-size:21px;line-height:1.9;margin:20px 0}.explore-link{font-size:12px;border-bottom:1px solid #b4c2b7;padding-bottom:7px;display:flex;justify-content:space-between;max-width:240px}.explore-link span{font-size:19px}.metadata{display:flex;gap:27px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);font-size:10px;align-items:center}.metadata span:first-child{color:var(--green);display:flex;align-items:center;gap:7px}.metadata i{width:5px;height:5px;border-radius:50%;background:#4c7c68}.meta-last{margin-left:auto}.explorer{padding-top:35px}.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.section-head>div{display:flex;align-items:center;gap:13px}.section-num{font-family:Georgia,serif;font-style:italic;font-size:14px;color:#84938a}h2{font-size:19px;letter-spacing:.05em;font-weight:600;margin:0}.hint{font-size:11px;color:var(--muted);margin-left:11px}.text-button{border:0;background:transparent;color:var(--muted);font-size:11px}.text-button:hover{color:var(--green)}.toolbar{display:flex;align-items:center;gap:20px}.search{display:flex;align-items:center;gap:10px;background:white;border:1px solid var(--line);padding:9px 14px;border-radius:6px;max-width:480px;flex:1}.search>span{font-size:23px;line-height:1;color:#6f847a}.search input{border:0;outline:0;background:transparent;width:100%;min-width:0;font-size:12px;color:var(--ink)}kbd{font:11px 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294px;gap:20px;align-items:start}.map-area{background:#f0f3ec;border:1px solid var(--line);border-radius:9px;padding:20px 21px 15px;background-image:radial-gradient(#c6d0c2 0.65px,transparent 0.65px);background-size:17px 17px}.map-caption{display:flex;align-items:center;justify-content:space-between;font-size:9px;letter-spacing:.13em;color:#75887c}.map-caption span:last-child{letter-spacing:0}.root-wrap{display:flex;flex-direction:column;align-items:center;padding-top:20px}.root-node{background:var(--green);border:0;border-radius:6px;color:white;display:flex;align-items:center;gap:14px;text-align:left;padding:15px 21px;width:325px;max-width:100%;box-shadow:0 4px 12px #173d3510}.root-icon{font-size:31px;opacity:.8}.root-node strong{display:block;font-family:'Noto Serif JP',serif;font-size:23px;font-weight:500;letter-spacing:.1em}.root-node small{font-size:8px;color:#d5e3dc}.root-en{font-size:8px;letter-spacing:.08em;color:#b6cfc3;line-height:1.5;margin-left:auto}.root-stem{height:25px;border-left:1px solid #a7b9ab}.chart{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 15px;position:relative}.group{position:relative;min-width:0;border-top:1px solid #a7b9ab;padding-top:15px}.group:before{content:'';position:absolute;top:0;left:50%;height:15px;border-left:1px solid #a7b9ab}.group-head{background:var(--tint);border:1px solid color-mix(in srgb,var(--accent) 30%,white);padding:10px 11px 9px;border-radius:5px;position:relative;margin-bottom:10px}.group-head>div{display:flex;align-items:center;gap:7px}.group-head h3{font-size:12px;margin:0;font-weight:600}.group-head p{font-size:9px;margin:2px 0 0;color:var(--muted)}.group-count{font-size:9px;color:var(--accent);margin-left:auto}.node-list{border-left:1px solid 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