:root{--blue:#2563eb;--blue-deep:#173e8a;--blue-soft:#eaf2fe;--ink:#2b3a48;--ink-soft:#5f6f7e;--line:#e3ecf3;--bg:#f6f9fc;--amber:#f59e0b;--amber-soft:#fff7e6}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI","Meiryo",sans-serif;color:var(--ink);background:#fff;line-height:1.9;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:var(--blue)}
.top{background:#0f2f66;color:#fff}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:56px}
.top a.logo{color:#fff;text-decoration:none;font-weight:800;font-size:15px}
.top a.logo small{font-weight:400;opacity:.8;font-size:12px;margin-left:8px}
.top .cta{background:#ffd76a;color:#173e8a;border-radius:999px;padding:7px 16px;font-size:13px;font-weight:800;text-decoration:none;white-space:nowrap}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
.crumb{font-size:12.5px;color:var(--ink-soft);margin:18px 0 6px}
.crumb a{color:var(--ink-soft);text-decoration:none}
article{padding:10px 0 40px}
article h1{font-size:clamp(23px,4.2vw,32px);line-height:1.45;color:var(--blue-deep);margin:8px 0 14px}
.meta{font-size:12.5px;color:var(--ink-soft);margin-bottom:26px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.meta b{color:var(--ink)}
article h2{font-size:clamp(18px,3.2vw,23px);color:var(--blue-deep);margin:40px 0 14px;padding:8px 0 8px 14px;border-left:5px solid var(--blue);line-height:1.5}
article h3{font-size:17px;color:var(--ink);margin:26px 0 8px}
article p{margin:0 0 16px;font-size:15.5px}
article ul,article ol{margin:0 0 18px 1.4em;font-size:15.5px}
article li{margin-bottom:6px}
.point{background:var(--blue-soft);border-radius:12px;padding:16px 18px;margin:18px 0;font-size:15px}
.point b{color:var(--blue-deep)}
.note{background:var(--amber-soft);border:1px solid #f0e2b8;border-radius:12px;padding:14px 16px;margin:18px 0;font-size:14px}
table.cmp{width:100%;border-collapse:collapse;margin:16px 0 22px;font-size:14px}
table.cmp th,table.cmp td{border:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
table.cmp th{background:var(--bg);color:var(--blue-deep)}
.cta-box{background:linear-gradient(135deg,#173e8a,#2563eb);color:#fff;border-radius:18px;padding:28px 22px;text-align:center;margin:40px 0 10px}
.cta-box h2{color:#fff;border:0;padding:0;margin:0 0 8px;font-size:20px}
.cta-box p{color:#dbe7fb;font-size:14px;margin-bottom:16px}
.btn{display:inline-block;font-weight:800;border-radius:999px;padding:13px 26px;font-size:15px;text-decoration:none;margin:4px}
.btn-w{background:#fff;color:var(--blue-deep)}
.btn-y{background:#ffd76a;color:#173e8a}
.author{display:flex;gap:14px;align-items:flex-start;background:var(--bg);border-radius:14px;padding:16px;margin:30px 0;font-size:13.5px}
.author .av{width:52px;height:52px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;flex:none}
.related{margin:30px 0}
.related h2{font-size:17px;border:0;padding:0;margin-bottom:10px}
.related a{display:block;padding:10px 12px;border:1px solid var(--line);border-radius:10px;margin-bottom:8px;text-decoration:none;color:var(--blue-deep);font-weight:700;font-size:14.5px;background:#fff}
.related a:hover{background:var(--blue-soft)}
.list a.card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:14px;text-decoration:none;color:var(--ink)}
.list a.card b{display:block;color:var(--blue-deep);font-size:17px;margin-bottom:6px;line-height:1.5}
.list a.card span{font-size:13.5px;color:var(--ink-soft)}
footer{background:#12233c;color:#b9c6d4;text-align:center;padding:28px 16px;font-size:12.5px;margin-top:30px}
footer a{color:#9fb0bd}