@charset "UTF-8";
:root{--ink:#17352b;--green:#154c3b;--green-dark:#0c3025;--paper:#fff;--soft:#f2f6f4;--line:#cbd9d2;--muted:#4c6359;--accent:#b45442;--max:1160px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:120px}body{margin:0;color:var(--ink);background:var(--paper);font-family:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;font-size:17px;line-height:1.9}a{color:inherit;text-underline-offset:5px}a:hover{color:var(--accent)}img{max-width:100%;display:block}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}.wrap{max-width:var(--max);margin:auto;padding-inline:32px}
.skip-link{position:fixed;left:20px;top:-90px;z-index:30;background:#fff;padding:10px}.skip-link:focus{top:10px}
.site-header{border-bottom:1px solid var(--line);background:rgba(255,255,255,.98);position:sticky;top:0;z-index:20}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:118px}.brand{text-decoration:none;display:block;flex-shrink:0;padding-block:10px 12px}.brand strong{display:block;font-family:"Yu Mincho",serif;font-size:28px;letter-spacing:.13em;line-height:1.35}.brand small{display:block;font-size:13px;letter-spacing:.1em;color:var(--muted);margin-bottom:2px}.brand-domain{font-family:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;font-size:.52em;font-weight:600;letter-spacing:.035em;color:var(--muted)}.brand-phone{display:block;font-size:16px;font-weight:700;letter-spacing:.08em;line-height:1.35;color:var(--green);margin-top:4px}.nav{display:flex;gap:25px;align-items:stretch;align-self:stretch}.nav a{text-decoration:none;font-size:15px;white-space:nowrap;display:flex;align-items:center;min-height:100%;padding-block:8px}.menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:3px;padding:8px 14px;color:var(--ink);min-height:44px}
.main-wrap{max-width:var(--max);margin:auto;padding:46px 32px 76px;background:#fff}.breadcrumbs{margin:0 0 22px;color:var(--muted);font-size:14px}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:.35rem;list-style:none;margin:0;padding:0}.breadcrumbs li:not(:last-child)::after{content:"／";margin-left:.35rem;color:#9b9b9b}
.hero{padding:0 0 38px;border-bottom:1px solid var(--line);margin-bottom:44px;background:none}.eyebrow{font-size:14px;font-weight:700;letter-spacing:.14em;color:var(--muted);margin:0 0 18px}.hero h1{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-weight:500;font-size:clamp(32px,3.5vw,48px);letter-spacing:.045em;line-height:1.5;margin:0 0 18px;color:var(--ink)}.lead{margin:0;max-width:44em;color:var(--muted);font-size:17px}
.page-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:52px;align-items:start}.article-card{min-width:0}.article-card section{padding:0 0 28px;margin:0 0 34px;border-bottom:1px solid var(--line)}.article-card section:last-child{margin-bottom:0}.article-card h2,.index-intro h2{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-weight:500;font-size:clamp(25px,2.5vw,32px);line-height:1.5;margin:0 0 18px;color:var(--ink)}.article-card p{margin:0 0 18px}.content-list,.alert-list{padding-left:1.35em}.content-list li,.alert-list li{margin-bottom:8px}
.side-card{position:sticky;top:145px;border-left:1px solid var(--line);padding-left:24px}.side-card h2{font-size:17px;margin:0 0 12px}.side-list{list-style:none;padding:0;margin:0;display:grid;gap:2px}.side-list a{display:block;padding:7px 9px;text-decoration:none;font-size:14px}.side-list a:hover,.side-list a[aria-current="page"]{background:var(--soft);color:var(--green);font-weight:700}.side-history{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:14px}
.notice{margin-top:42px;padding:22px 24px;background:var(--soft);border-left:4px solid var(--green)}.notice p{margin:0}.priority-section{background:#faf7f5;padding:24px!important;border-left:4px solid var(--accent);border-bottom:0!important}.reference-section{font-size:15px}.reference-list{padding-left:1.4em}.diagram-card{margin:24px 0;padding:16px;background:var(--soft);border:1px solid var(--line)}.diagram-card img{margin:auto}.diagram-card figcaption{margin-top:10px;color:var(--muted);font-size:14px}.diagram-narrow{max-width:520px}
.page-nav{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;margin-top:34px}.page-nav a{min-height:52px;display:flex;align-items:center;padding:10px 15px;border:1px solid var(--line);text-decoration:none;border-radius:3px}.page-nav .next{justify-content:flex-end;text-align:right}.page-nav .toc{justify-content:center;font-weight:700}
.index-intro{padding:0 0 34px;border-bottom:1px solid var(--line);margin-bottom:28px}.index-intro p{margin:0 0 14px}.guideline-note{margin-top:16px!important;padding:16px 18px;background:var(--soft);border-left:4px solid var(--green);color:var(--muted)}.toolbar{display:flex;flex-wrap:wrap;gap:16px;align-items:end;margin:0 0 30px}.search-box{flex:1 1 320px}.search-box label{display:block;font-weight:700;margin-bottom:7px}.search-box input{width:100%;min-height:52px;border:1px solid var(--line);border-radius:3px;padding:10px 14px;font:inherit;background:#fff}.search-box input:focus{outline:3px solid rgba(21,76,59,.12);border-color:var(--green)}.result-count{margin:0;color:var(--muted)}.symptom-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.symptom-card{background:#fff;border:1px solid var(--line);border-radius:3px}.symptom-card a{display:block;height:100%;padding:26px;text-decoration:none}.symptom-card a:hover{background:var(--soft)}.card-no{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:30px;padding:0 10px;background:var(--green);color:#fff;font-weight:700;font-size:13px}.symptom-card h2{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-weight:500;margin:16px 0 8px;font-size:24px;color:var(--ink)}.symptom-card p{margin:0;color:var(--muted);font-size:15px}.no-results{display:none;padding:20px;background:var(--soft);border:1px solid var(--line)}
.site-footer{border-top:1px solid var(--line);padding:46px 0 100px;background:#fff}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px}.footer-links{display:flex;flex-wrap:wrap;gap:10px 25px;align-content:start;font-size:15px}.note{font-size:15px;color:var(--muted);margin-top:17px}.copyright{font-size:16px;color:var(--muted);border-top:1px solid var(--line);padding-top:22px;margin-top:35px;text-align:center}.copyright a{text-decoration:none}.hidden{display:none!important}
@media(max-width:1050px){.header-inner{min-height:112px}.nav{gap:15px}.nav a{font-size:14px}.brand strong{font-size:24px}.brand-phone{font-size:15px}.page-layout{gap:34px}}
@media(max-width:850px){.wrap{padding-inline:24px}.header-inner{min-height:104px;flex-wrap:wrap;gap:0}.brand{padding-block:8px 10px}.brand strong{font-size:25px}.brand-phone{font-size:15px;margin-top:2px}.menu-toggle{display:block}.nav{display:none;width:100%;padding:20px 0;flex-wrap:wrap;gap:0;align-items:stretch;align-self:auto}.nav.is-open{display:flex}.nav a{width:50%;padding:13px 8px;font-size:16px;min-height:auto}.main-wrap{padding:35px 24px 58px}.page-layout{grid-template-columns:1fr}.side-card{position:static;border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.symptom-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1fr;gap:25px}.site-footer{padding-bottom:70px}html{scroll-padding-top:100px}}
@media(max-width:480px){.wrap{padding-inline:20px}body{font-size:16px}.header-inner{min-height:96px}.brand small{font-size:12px}.brand strong{font-size:22px}.brand-phone{font-size:14px}.main-wrap{padding:28px 20px 48px}.hero{padding-bottom:28px;margin-bottom:34px}.symptom-grid{grid-template-columns:1fr}.page-nav{grid-template-columns:1fr}.page-nav .next,.page-nav .toc{justify-content:flex-start;text-align:left}.article-card h2,.index-intro h2{font-size:25px}.symptom-card a{padding:22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}