:root{font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;color:#142e36;background:#f4f7f6;font-synthesis:none}
*{box-sizing:border-box}
body{margin:0;line-height:1.85}
a{color:#116f62;text-underline-offset:3px}
a:hover,a:focus-visible{color:#0b5349}
.skip-link{position:absolute;top:-100px;left:12px;background:#fff;padding:8px 12px;z-index:2}
.skip-link:focus{top:12px}
.site-header{background:#142e36;color:#fff}
.site-header-inner{max-width:1040px;margin:auto;padding:18px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.site-header a{color:inherit}
.brand{font-size:19px;font-weight:700;text-decoration:none;letter-spacing:.04em}
.site-header nav{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px}
.content{max-width:960px;margin:44px auto 72px;padding:0 24px}
.eyebrow{color:#167969;font-size:12px;font-weight:700;letter-spacing:.18em;margin:0 0 8px}
h1,h2{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;line-height:1.45}
h1{font-size:clamp(32px,5vw,46px);margin:0 0 16px}
.lead{font-size:16px;color:#4d6770;max-width:720px;margin:0 0 32px}
.card{background:#fff;border:1px solid #d6e1e0;border-radius:6px;padding:26px 30px;margin:18px 0}
h2{font-size:23px;margin:0 0 14px}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
.notice{border-left:4px solid #167969;background:#edf7f4;padding:18px 22px;margin:26px 0}
.site-footer{background:#142e36;color:#d3dfe2;padding:24px}
.site-footer-inner{max-width:1040px;margin:auto;display:flex;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;font-size:13px}
.site-footer a{color:inherit}
.mail-link{display:inline-block;background:#127364;color:#fff;padding:12px 20px;border-radius:4px;text-decoration:none;font-weight:700}
.mail-link:hover,.mail-link:focus-visible{background:#0d6053;color:#fff}
.mail-link:focus-visible{outline:3px solid #58ae9f;outline-offset:2px}
.definition{margin:0 0 18px}
.definition>div{display:grid;grid-template-columns:140px 1fr;border-bottom:1px solid #d6e1e0;padding:10px 0;gap:10px}
.definition dt{font-weight:700}
.definition dd{margin:0}
.effective-date{font-size:13px;color:#567078;margin:-12px 0 24px}
ul{padding-left:1.4em;margin:0 0 14px}
li{margin:5px 0}
code{font-size:.95em;overflow-wrap:anywhere}
@media(max-width:600px){.site-header-inner{display:block}.site-header nav{margin-top:10px}.content{margin:32px auto 56px;padding:0 18px}.card{padding:21px 19px}.lead{font-size:14px}.definition>div{grid-template-columns:1fr;gap:0}}