:root{font-family:"Segoe UI","Yu Gothic UI",Meiryo,sans-serif;color:#172333;background:#fff;font-synthesis:none;--navy:#002060;--blue:#004ea2;--cyan:#38bee2;--muted:#5d6a76;--line:#b0b8dd}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0}a{color:var(--blue);text-underline-offset:5px}a:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}header,main,footer{max-width:1420px;margin:auto}header{display:flex;justify-content:space-between;align-items:center;padding:28px 48px;border-bottom:1px solid var(--line)}.brand{font-size:25px;font-weight:800;text-decoration:none;color:var(--navy);letter-spacing:-1px}.brand span{font-size:10px;letter-spacing:1px;margin-left:12px}nav{display:flex;gap:26px;font-size:12px}nav a{text-decoration:none}.hero{padding:58px 48px 35px}.eyebrow{font-size:10px;letter-spacing:1.7px;font-weight:650;color:var(--blue);margin:0 0 16px}h1{font-size:clamp(32px,4vw,56px);font-weight:650;line-height:1.4;letter-spacing:-1.8px;margin:0 0 22px}p{font-size:14px;line-height:1.9;color:var(--muted)}.scope{border-left:3px solid var(--cyan);padding:14px 20px;background:#f3f6f8;margin-top:30px;font-size:13px;line-height:1.9}.scope strong{font-weight:600;display:block;color:var(--navy)}.scope span{color:var(--muted)}.versions{display:grid;grid-template-columns:1fr 1fr;gap:28px;padding:16px 48px 60px}.versions article{border:1px solid var(--line);border-top:4px solid var(--blue);overflow:hidden}.versions article.revised{border-top-color:var(--cyan)}.version-heading{display:flex;gap:18px;align-items:center;padding:24px}.version-id{font-size:38px;letter-spacing:-2px;color:var(--navy);font-weight:600}.version-heading .eyebrow{font-size:9px;margin:0 0 5px}.version-heading h2{font-size:20px;margin:0;font-weight:600}.date{margin-left:auto;color:var(--muted);font-size:10px}.preview{display:block;background:#f3f6f8;border-top:1px solid #e2e8ee;border-bottom:1px solid #e2e8ee}.preview img{display:block;width:100%;height:300px;object-fit:contain;background:white}.version-body{padding:12px 26px 26px}.version-body>p{min-height:80px;font-size:13px}.mini{margin:20px 0;font-size:12px}.mini>div{display:flex;gap:20px;border-bottom:1px solid #dce4ec;padding:12px 0;line-height:1.7}.mini dt{color:var(--muted);flex:0 0 80px}.mini dd{margin:0}.primary{display:flex;align-items:center;justify-content:space-between;background:var(--blue);color:white;text-decoration:none;padding:15px 18px;font-size:14px}.primary:hover{background:var(--navy)}.sub-links{display:flex;justify-content:space-between;gap:10px;font-size:11px;margin-top:18px}#comparison{padding:50px 48px;background:#f3f6f8}h2{font-size:30px;font-weight:650;line-height:1.5;letter-spacing:-.8px;margin:0 0 16px}.intro-note{font-size:13px}.table-scroll{overflow-x:auto;margin-top:28px}table{width:100%;border-collapse:collapse;min-width:700px;font-size:13px;line-height:1.8}thead{background:var(--navy);color:white}th,td{padding:17px 20px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}thead th:first-child{width:21%}thead th:nth-child(2),thead th:nth-child(3){width:39.5%}tbody th{font-weight:600;color:var(--navy)}tbody td{background:#ffffff8c}small{font-size:11px;color:var(--muted)}.status-row td{background:#d7f2f9;font-weight:600;color:var(--navy)}.footnote{font-size:11px;line-height:1.9;max-width:1000px;margin-top:22px}.method{display:grid;grid-template-columns:1.1fr 1fr;gap:70px;padding:65px 48px}.method p{font-size:13px}.document-links{padding-top:20px}.document-links a{display:flex;justify-content:space-between;text-decoration:none;border-bottom:1px solid var(--line);padding:20px 0;font-size:13px}footer{border-top:1px solid var(--line);padding:26px 48px;display:flex;justify-content:space-between;gap:20px;font-size:10px;color:var(--muted)}.skip{position:fixed;left:20px;top:-100px;background:#d7f2f9;padding:15px;z-index:10}.skip:focus{top:15px}
@media(max-width:900px){header{padding:22px 24px}.hero{padding:40px 24px 24px}.versions{padding:12px 24px 40px;gap:18px}.version-heading{padding:18px;gap:12px}.date{display:none}.version-body{padding:12px 18px 22px}.preview img{height:250px}.version-body>p{min-height:105px}.sub-links{flex-wrap:wrap}#comparison{padding:40px 24px}.method{padding:45px 24px;gap:30px}footer{padding:24px}}
@media(max-width:600px){header{gap:16px;flex-wrap:wrap}.brand{font-size:23px}.brand span{font-size:9px}nav{gap:22px;font-size:11px}h1{font-size:32px;letter-spacing:-1px}.hero p{font-size:13px}.scope{font-size:12px;padding:12px 15px}.versions{grid-template-columns:1fr}.version-body>p{min-height:0}.preview img{height:260px}.version-heading h2{font-size:20px}.version-id{font-size:35px}h2{font-size:25px}.method{grid-template-columns:1fr;gap:15px}table{font-size:12px}th,td{padding:14px 13px}.intro-note{font-size:12px}footer{flex-direction:column;gap:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.preview{overflow:hidden}.preview img{transform:scale(1.18)}