:root{--teal:#246a65;--navy:#233a4d;--gold:#b58a50;--mint:#e8f1ec;--bg:#fafaf7;--ink:#263238;--stripe:#f0f5f8;--info:#edf4f8;--warn:#fff4e4;--line:#d5dfdc;--content:1160px;--article:760px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.9 "Noto Sans JP","Yu Gothic UI",Meiryo,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,summary{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #a56e22;outline-offset:4px}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3{line-height:1.55;letter-spacing:.025em}h1{font-size:36px}h2{font-size:26px}h3{font-size:21px}h4{font-size:17px}small{font-size:13px}.wrap{width:min(var(--content),calc(100% - 48px));margin:auto}.review-bar{background:var(--navy);color:white;padding:8px 0;font-size:12px}.review-bar 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var(--teal);padding:10px}.skip{position:absolute;left:-9999px}.skip:focus{left:15px;top:15px;background:white;z-index:100;padding:15px}
@media(max-width:950px){.nav{gap:14px;font-size:12px}.article-layout{grid-template-columns:1fr}.sidebar{display:none}.article{max-width:760px;margin:auto}.hero h1{font-size:32px}.hero{gap:25px}.tool-band .wrap{grid-template-columns:1fr 1fr;gap:25px}}
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/* v2: preventive constraints; actual viewport rendering remains unverified */
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