:root{--navy-deep:#0f3057;--navy:#1a4f8b;--gold:#c9a227;--gold-light:#e4c968;--ink:#333333;--line:#d7dee8;--bg-soft:#f2f4f8;--bg-cream:#fdfaf1}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Hiragino Kaku Gothic ProN,Noto Sans JP,Yu Gothic,sans-serif;line-height:1.8;font-size:15px;background:#fff}a{color:var(--navy)}img{max-width:100%;height:auto}.site-header{border-bottom:1px solid var(--line);background:#fff;position:-webkit-sticky;position:sticky;top:0;z-index:50}.header-inner{max-width:1080px;margin:0 auto;padding:10px 20px;gap:24px;flex-wrap:wrap}.brand-link,.header-inner{display:flex;align-items:center}.brand-link{gap:12px}.brand-link img{flex-shrink:0}.brand{font-weight:700;font-size:17px;color:var(--navy-deep);line-height:1.3}.brand small{display:block;font-size:11px;font-weight:400;color:#777;letter-spacing:.06em}.gnav{display:flex;gap:16px;flex-wrap:wrap;margin-left:auto}.gnav a{font-size:13px;color:var(--navy-deep);text-decoration:none;padding:4px 2px;border-bottom:2px solid transparent}.gnav a:hover{border-bottom-color:var(--gold)}.header-tel{font-size:11px;color:#666;text-align:right;line-height:1.4}.header-tel b{display:block;font-size:17px;color:var(--navy-deep)}@media (max-width:760px){.header-tel{display:none}.gnav{gap:10px}}.site-footer{background:var(--navy-deep);color:#cdd7e4;margin-top:64px;font-size:13px}.footer-inner{max-width:1080px;margin:0 auto;padding:36px 20px 24px;display:flex;gap:40px;flex-wrap:wrap;justify-content:space-between}.footer-nav{display:flex;flex-direction:column;gap:6px}.footer-nav a{color:#cdd7e4;text-decoration:none}.footer-nav a:hover{color:#fff}.copyright{text-align:center;padding:14px;font-size:11px;background:#0b2440;color:#8fa3ba}.section{max-width:1080px;margin:0 auto;padding:48px 20px}.section.narrow{max-width:820px}.section.tint{background:var(--bg-soft);max-width:none}.section.tint>.inner{max-width:1080px;margin:0 auto;padding:0 20px}.page-title{background:linear-gradient(135deg,var(--navy-deep),var(--navy));color:#fff;padding:44px 20px}.page-title h1{max-width:1080px;margin:0 auto;font-size:26px}.page-title p{max-width:1080px;margin:8px auto 0;font-size:13.5px;color:#d7e2ef}h2.head{font-size:21px;border-left:5px solid var(--gold);padding-left:12px;margin:0 0 20px}h2.head,h3.subhead{color:var(--navy-deep)}h3.subhead{font-size:16px;margin:24px 0 8px}.card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px}.grid-3{grid-gap:16px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.grid-2,.grid-3{display:grid;gap:16px}.grid-2{grid-gap:16px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.btn{display:inline-block;padding:12px 28px;border-radius:6px;font-weight:700;font-size:14.5px;text-decoration:none;border:none;transition:opacity 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label{display:block;font-weight:700;font-size:13.5px;margin-bottom:6px;color:var(--navy-deep)}.form-grid input,.form-grid select,.form-grid textarea{width:100%;padding:10px 12px;border:1px solid #ccd4de;border-radius:5px;font-size:14px;font-family:inherit;background:#fff}.form-grid textarea{min-height:140px;resize:vertical}.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus{outline:2px solid var(--navy);outline-offset:1px}.req{display:inline-block;background:#c0392b;color:#fff;font-size:10.5px;border-radius:3px;padding:1px 6px;margin-left:8px;vertical-align:2px}.form-msg{border-radius:6px;padding:16px 18px;font-size:14px}.form-msg.ok{background:#eef7ee;border:1px solid #bfe0bf;color:#2c5f2d}.form-msg.err{background:#fdeeee;border:1px solid #eec3c3;color:#a33}.note{font-size:12px;color:#888}.article-body{max-width:760px;margin:0 auto}.article-body img{border-radius:6px}.column-list{display:grid;grid-gap:14px;gap:14px}.column-list a{display:block;border:1px solid var(--line);border-radius:8px;padding:16px 20px;text-decoration:none;color:var(--ink);background:#fff}.column-list a:hover{border-color:var(--navy)}.column-list .cat{display:inline-block;font-size:11px;color:var(--navy);border:1px solid var(--navy);border-radius:3px;padding:0 8px;margin-bottom:6px}.column-list h3{margin:0 0 4px;font-size:15.5px;color:var(--navy-deep)}.column-list p{margin:0;font-size:12.5px;color:#777}