:root{--brand:#1f6f78;--brand-d:#165259;--accent:#e8a33d;--ink:#222;--sub:#666;--line:#e6e6e6;--bg:#fff;--soft:#f5f8f8}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",Meiryo,system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.9;font-size:16px;-webkit-text-size-adjust:100%}
a{color:var(--brand)}img{max-width:100%;height:auto}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.site-head{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:10}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.logo{font-weight:800;font-size:20px;color:var(--brand);text-decoration:none;letter-spacing:.02em}
.logo small{display:block;font-size:11px;font-weight:500;color:var(--sub);letter-spacing:0}
.gnav{display:flex;gap:4px;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
.gnav a{font-size:13px;color:#444;text-decoration:none;padding:6px 10px;border-radius:6px}.gnav a:hover{background:var(--soft);color:var(--brand)}
.hero{background:linear-gradient(135deg,#eef6f6,#fbf5ea);padding:44px 0 36px}
.hero h1{margin:0 0 10px;font-size:30px;line-height:1.35}.hero p{margin:0;color:#444}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin:24px 0}
.card{border:1px solid var(--line);border-radius:12px;padding:18px 20px;background:#fff;text-decoration:none;color:var(--ink);display:block;transition:.15s}
.card:hover{box-shadow:0 6px 18px rgba(0,0,0,.08);transform:translateY(-2px)}
.card .cat{display:inline-block;font-size:11px;color:var(--brand);border:1px solid var(--brand);border-radius:999px;padding:1px 10px;margin-bottom:8px}
.card h3{margin:0 0 6px;font-size:17px;line-height:1.5}.card p{margin:0;font-size:13px;color:var(--sub)}
.sec-title{font-size:22px;margin:36px 0 6px;padding-left:12px;border-left:5px solid var(--brand)}
.article{max-width:760px;margin:0 auto;padding:28px 0 60px}
.crumb{font-size:12px;color:var(--sub);margin-bottom:12px}.crumb a{color:var(--sub);text-decoration:none}
.article h1{font-size:28px;line-height:1.4;margin:0 0 12px}
.meta{font-size:13px;color:var(--sub);display:flex;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.pr-note{font-size:12px;color:#777;background:#f7f7f7;border-radius:6px;padding:6px 12px;margin:0 0 20px}
.entry-content{font-size:16px}
.entry-content p{margin:0 0 1.2em}
.entry-content .lead{font-size:17px;font-weight:500;background:var(--soft);border-radius:10px;padding:16px 20px}
.entry-content h2{font-size:23px;line-height:1.45;margin:2.2em 0 .9em;padding:10px 14px;border-left:6px solid var(--brand);background:linear-gradient(90deg,var(--soft),#fff)}
.entry-content h3{font-size:19px;margin:1.8em 0 .7em;display:flex;align-items:flex-start;gap:.5em}
.entry-content h3::before{content:"";flex:0 0 auto;width:14px;height:14px;margin-top:.42em;border-radius:4px;background:linear-gradient(135deg,var(--brand),var(--brand-d))}
.entry-content ul{list-style:none;padding-left:.2em}.entry-content ul>li{position:relative;padding-left:1.45em;margin:.42em 0}
.entry-content ul>li::before{content:"";position:absolute;left:.1em;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--brand);transform:rotate(45deg)}
.entry-content ul.list-check{padding-left:0}.entry-content ul.list-check>li{padding-left:2em;margin:.55em 0}
.entry-content ul.list-check>li::before{content:"\2713";width:1.4em;height:1.4em;left:0;top:.2em;border-radius:50%;background:var(--brand);color:#fff;font-size:.85em;line-height:1.4em;text-align:center;transform:none}
.entry-content ul.list-chevron{padding-left:0}.entry-content ul.list-chevron>li{padding-left:1.6em;margin:.5em 0}
.entry-content ul.list-chevron>li::before{content:"\203A";width:auto;height:auto;background:none;left:.2em;top:-.05em;color:var(--brand);font-weight:800;font-size:1.3em;transform:none}
.entry-content ol{list-style:none;padding-left:0;counter-reset:li}.entry-content ol>li{position:relative;padding-left:2.3em;margin:.55em 0;counter-increment:li}
.entry-content ol>li::before{content:counter(li);position:absolute;left:0;top:.25em;width:1.6em;height:1.6em;line-height:1.6em;text-align:center;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;font-size:.85em}
.entry-content .mk{background:linear-gradient(transparent 60%,#ffe7a3 60%);font-weight:700}
.entry-content .mk-r{background:linear-gradient(transparent 60%,#ffd2cc 60%);font-weight:700}
.entry-content .box-point,.entry-content .box-memo,.entry-content .box-warn{position:relative;border-radius:12px;padding:30px 22px 16px;margin:30px 0;border:1px solid}
.entry-content .box-point{background:#f2f8f8;border-color:#c9dedf}.entry-content .box-memo{background:#f4f8fb;border-color:#cfe0ee}.entry-content .box-warn{background:#fff8ef;border-color:#f1d6a8}
.entry-content .box-point::before,.entry-content .box-memo::before,.entry-content .box-warn::before{position:absolute;top:-13px;left:16px;padding:3px 14px;border-radius:999px;color:#fff;font-size:12px;font-weight:700;letter-spacing:.05em}
.entry-content .box-point::before{content:"POINT";background:var(--brand)}.entry-content .box-memo::before{content:"MEMO";background:#3b7bbf}.entry-content .box-warn::before{content:"注意";background:#df8a1e}
.entry-content .box-point>:first-child,.entry-content .box-memo>:first-child,.entry-content .box-warn>:first-child{margin-top:0}
.entry-content .box-point>:last-child,.entry-content .box-memo>:last-child,.entry-content .box-warn>:last-child{margin-bottom:0}
.entry-content .tbl{overflow-x:auto;margin:20px 0}
.entry-content table{border-collapse:separate;border-spacing:0;width:100%;min-width:520px;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:14.5px}
.entry-content th,.entry-content td{padding:10px 12px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);vertical-align:top;text-align:left}
.entry-content th{background:var(--brand);color:#fff;font-weight:700}
.entry-content tr th:last-child,.entry-content tr td:last-child{border-right:none}.entry-content tbody tr:last-child td{border-bottom:none}.entry-content tbody tr:nth-child(even){background:#fafbfc}
.entry-content .src{font-size:12px;color:#777;margin:-10px 0 20px}
.entry-content .svc{border:2px solid var(--brand);border-radius:14px;padding:20px 22px;margin:26px 0;background:#fff}
.entry-content .svc-name{font-size:19px;font-weight:800;margin:0 0 8px;color:var(--brand-d)}
.entry-content .svc-fit{font-size:14.5px;background:var(--soft);border-radius:8px;padding:8px 12px}
.entry-content .svc-cta{text-align:center;margin:14px 0 0}
.entry-content a.btn{display:inline-block;background:var(--accent);color:#fff;padding:14px 34px;border-radius:999px;font-weight:700;text-decoration:none;box-shadow:0 4px 12px rgba(232,163,61,.35)}
.entry-content a.btn:hover{filter:brightness(1.05)}
.entry-content .cta-soft{background:var(--soft);border-radius:10px;padding:14px 18px;font-size:15px}
.toc{border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:20px 0;background:#fafafa;font-size:14px}
.toc p{margin:0 0 6px;font-weight:700}.toc ol{margin:0;padding-left:1.4em}.toc li{margin:.2em 0}.toc a{text-decoration:none}
.related{margin:40px 0 0}.related h2{font-size:18px;border-left:5px solid var(--brand);padding-left:10px}
.site-foot{border-top:1px solid var(--line);margin-top:40px;padding:28px 0 40px;font-size:13px;color:var(--sub)}
.site-foot a{color:var(--sub);margin-right:14px}
@media(max-width:600px){.hero h1{font-size:23px}.article h1{font-size:23px}.entry-content h2{font-size:20px}.entry-content{font-size:15.5px}.entry-content table{font-size:13.5px}.site-head .wrap{height:auto;padding:8px 14px;flex-wrap:wrap}.gnav{width:100%}}
.entry-content{overflow-wrap:break-word}   /* 長いURL・英数字の連続でスマホの横幅が伸びるのを防ぐ */
.entry-content .src,.entry-content td,.entry-content th{overflow-wrap:anywhere}
.entry-content h2,.entry-content h3{scroll-margin-top:92px}   /* 追従ヘッダーの下に見出しが隠れないように(目次リンク・アンカー) */
.entry-content .own{border:1px solid var(--line);border-left:5px solid var(--brand-d);border-radius:12px;padding:20px 22px;margin:34px 0 8px;background:var(--soft)}
.entry-content .own-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.06em;color:#fff;background:var(--brand-d);border-radius:999px;padding:2px 12px;margin:0 0 8px}
.entry-content .own-name{font-size:18px;font-weight:800;margin:0 0 6px;color:var(--brand-d)}
.entry-content .own p{font-size:15px}
.entry-content .own-cta{text-align:center;margin:14px 0 0}
.entry-content a.btn-own{background:var(--brand-d);box-shadow:0 4px 12px rgba(22,82,89,.3)}
.tbl-hint{display:none;font-size:12px;color:#888;margin:-14px 0 18px}
@media(max-width:600px){
.wrap{padding:0 14px}
.logo{font-size:17px}.logo small{display:none}
.site-head .wrap{padding:6px 14px;gap:4px}
.gnav a{padding:5px 8px}
.hero{padding:30px 0 26px}
.article{padding:20px 0 44px}
.entry-content a.btn{display:block;width:100%;padding:14px 12px;font-size:15px;line-height:1.5}
.entry-content .svc{padding:16px 14px}
.entry-content .box-point,.entry-content .box-memo,.entry-content .box-warn{padding:28px 14px 14px}
.entry-content table{min-width:430px}
.entry-content th,.entry-content td{padding:8px 10px}
.tbl-hint{display:block}
}