:root{--navy:#10283f;--navy-2:#173a59;--orange:#c9682b;--cream:#f5f2eb;--ink:#17212b;--muted:#5d6873;--line:#d7dde2;--white:#fff;--max:1200px;--radius:14px;--shadow:0 12px 32px rgba(16,40,63,.1)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--white);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;line-height:1.75}img{max-width:100%;height:auto}a{color:var(--navy-2);text-underline-offset:.2em}a:focus-visible,button:focus-visible{outline:3px solid #f0a15c;outline-offset:3px}.skip-link{position:absolute;left:-9999px;top:8px;background:#fff;padding:.6rem 1rem;z-index:999}.skip-link:focus{left:8px}.inner,.site-header__inner,.site-footer__inner,.hero__inner{width:min(calc(100% - 40px),var(--max));margin:auto}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}.site-header__inner{min-height:76px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);margin-right:auto}.brand__mark{display:grid;place-items:center;width:42px;height:42px;border-radius:10px;background:var(--navy);color:#fff;font-size:1.35rem}.brand small{display:block;font-size:.72rem;color:var(--muted)}.primary-nav ul{display:flex;align-items:center;gap:18px;list-style:none;margin:0;padding:0}.primary-nav a{text-decoration:none;font-size:.9rem}.header-cta,.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:.7rem 1.15rem;border:1px solid var(--navy);border-radius:999px;text-decoration:none;font-weight:700}.header-cta,.button--primary{background:var(--orange);border-color:var(--orange);color:#fff}.menu-toggle{display:none}
.breadcrumbs{width:min(calc(100% - 40px),var(--max));margin:12px auto}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0;font-size:.8rem}.breadcrumbs li+li:before{content:"/";margin-right:8px;color:var(--muted)}
.hero{background:linear-gradient(135deg,var(--cream),#fff);padding:76px 0}.hero__inner{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}.eyebrow{color:var(--orange);font-weight:800;letter-spacing:.08em;text-transform:uppercase}.hero h1,.entry h1,.page-header h1{font-size:clamp(2rem,4vw,4.25rem);line-height:1.17;letter-spacing:-.03em;margin:.3em 0}.hero__lead,.entry__lead{font-size:1.16rem;color:var(--muted)}.button-row{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}.trust-list{display:flex;flex-wrap:wrap;gap:16px;padding:0;list-style:none;font-weight:700}.trust-list li:before{content:"✓";color:var(--orange);margin-right:6px}.diagnostic-map{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:24px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:var(--shadow)}.diagnostic-map span,.diagnostic-map strong{display:grid;place-items:center;min-height:76px;padding:10px;text-align:center;border-radius:12px;background:var(--cream)}.diagnostic-map strong{grid-column:1/-1;background:var(--navy);color:#fff;font-size:1.2rem}
.section{padding:80px 0}.section--dark{background:var(--navy);color:#fff}.section h2{font-size:clamp(1.6rem,3vw,2.7rem);line-height:1.3}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;box-shadow:0 4px 18px rgba(16,40,63,.05)}.card__body,.card:not(:has(.card__body)){padding:24px}.card__title,.card h3{font-size:1.1rem;margin-top:0}.card__title a{text-decoration:none;color:var(--ink)}.text-link{color:var(--orange);font-weight:700}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.steps>div{padding:22px;border:1px solid rgba(255,255,255,.24);border-radius:var(--radius)}.steps b{color:#f0a15c;font-size:1.4rem}.split{display:grid;grid-template-columns:1.2fr .8fr;gap:42px;align-items:start}.notice{padding:28px;border-left:5px solid var(--orange);background:var(--cream);border-radius:var(--radius)}.section-link{text-align:right;margin-top:24px}
.content-layout{padding:50px 0 90px}.page-header,.entry__header{max-width:880px;margin-bottom:36px}.entry{max-width:880px}.entry__content{font-size:1.03rem}.entry__content h2{margin-top:2.2em;border-bottom:2px solid var(--navy);padding-bottom:.35em}.entry__content h3{margin-top:1.8em}.author-card{margin-top:50px;padding:24px;background:var(--cream);border-radius:var(--radius)}.error-page{padding:90px 0}
.site-footer{background:#0b1d2e;color:#dce5ed;padding:60px 0 90px}.site-footer__inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.site-footer a{color:#fff}.copyright{text-align:center;font-size:.8rem}.mobile-cta{display:none}
@media(max-width:900px){.primary-nav{display:none;position:absolute;inset:76px 0 auto;background:#fff;padding:20px;border-bottom:1px solid var(--line)}.primary-nav.is-open{display:block}.primary-nav ul{display:block}.primary-nav li{margin:12px}.menu-toggle{display:block}.header-cta{display:none}.hero__inner,.split{grid-template-columns:1fr}.card-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.inner,.site-header__inner,.site-footer__inner,.hero__inner{width:min(calc(100% - 28px),var(--max))}.brand small{display:none}.hero{padding:48px 0}.hero h1{font-size:2.15rem}.card-grid,.steps,.site-footer__inner{grid-template-columns:1fr}.section{padding:58px 0}.mobile-cta{display:block;position:fixed;z-index:90;left:12px;right:12px;bottom:max(12px,env(safe-area-inset-bottom));}.mobile-cta a{display:block;text-align:center;padding:13px;background:var(--orange);color:#fff;border-radius:999px;text-decoration:none;font-weight:800;box-shadow:var(--shadow)}body{padding-bottom:70px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.sn-contact-form{max-width:760px}.sn-contact-form p,.sn-contact-form fieldset{margin:0 0 1.25rem}.sn-contact-form label,.sn-contact-form legend{font-weight:700}.sn-contact-form input[type=text],.sn-contact-form input[type=email],.sn-contact-form input[type=tel],.sn-contact-form textarea{display:block;width:100%;margin-top:.45rem;padding:.8rem;border:1px solid #9aa4b2;border-radius:.45rem;background:#fff;color:#172033;font:inherit}.sn-contact-form input:focus,.sn-contact-form textarea:focus{outline:3px solid rgba(202,111,44,.28);border-color:#9b4d18}.sn-contact-form fieldset{border:1px solid #cbd2dc;border-radius:.5rem;padding:1rem}.sn-contact-form fieldset label{font-weight:400;margin-right:1.25rem}.sn-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}.form-status{padding:1rem 1.2rem;border-radius:.5rem;margin-bottom:1.5rem}.form-status--success{background:#edf8f0;border:1px solid #6ca97a}.form-status--error{background:#fff0f0;border:1px solid #c96b6b}.notice--compact{padding:1rem;margin:1rem 0}.entry__content table{display:block;max-width:100%;overflow-x:auto}