:root{
  --brand:#3d6fb6;--brand-d:#2b5390;--ink:#1f2933;--sub:#52606d;--line:#e4e7eb;
  --bg:#ffffff;--bg2:#f5f7fa;--accent:#e8873a;--radius:10px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Noto Sans JP",system-ui,-apple-system,"Hiragino Sans",sans-serif;color:var(--ink);background:var(--bg);line-height:1.8;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-d)}
h1,h2,h3{line-height:1.4}
h1{font-size:clamp(1.5rem,4vw,2.1rem);margin:.2em 0 .6em}
h2{font-size:clamp(1.25rem,3vw,1.55rem);margin:2em 0 .8em;padding-left:.6em;border-left:5px solid var(--brand)}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
.narrow{max-width:720px}
.sec{padding:28px 16px 40px}
.lead{font-size:1.05rem;color:var(--sub)}

/* header */
.hd{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand span{display:flex;flex-direction:column;line-height:1.3}
.brand b{font-size:1.05rem}.brand small{font-size:.72rem;color:var(--sub)}
.gnav{margin-left:auto;display:flex;gap:18px}
.gnav a{text-decoration:none;color:var(--ink);font-weight:500;font-size:.95rem}
.gnav a:hover{color:var(--brand)}
.hd-tel{display:flex;flex-direction:column;text-decoration:none;font-weight:700;font-size:1.15rem;color:var(--brand-d);line-height:1.2;text-align:right}
.hd-tel small{font-weight:400;font-size:.7rem;color:var(--sub)}

/* hero */
.hero{position:relative;color:#fff;background:linear-gradient(90deg,rgba(16,32,58,.82),rgba(16,32,58,.35)),var(--hero) center/cover no-repeat;}
.hero-in{padding:72px 16px 56px}
.hero h1{font-size:clamp(1.6rem,4.4vw,2.6rem);margin:0 0 .5em}
.hero p{max-width:640px;font-size:1.05rem}
.facts{list-style:none;padding:0;margin:28px 0 0;display:flex;flex-wrap:wrap;gap:12px}
.facts li{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);border-radius:var(--radius);padding:10px 16px;display:flex;flex-direction:column}
.facts b{font-size:1.25rem}.facts span{font-size:.8rem}

/* buttons */
.cta-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:999px;font-weight:700;text-decoration:none;border:0;cursor:pointer;font-size:1rem}
.btn-main{background:var(--accent);color:#fff}
.btn-main:hover{filter:brightness(1.05)}
.btn-sub{background:#fff;color:var(--brand-d);border:2px solid var(--brand)}
.btn-line{background:#06c755;color:#fff}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.card{display:block;text-decoration:none;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .2s}
.card:hover{box-shadow:0 6px 20px rgba(0,0,0,.08)}
.card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.card-b{padding:12px 16px 16px}
.card h3{font-size:1rem;margin:.2em 0}
.tag{display:inline-block;font-size:.78rem;color:var(--brand-d);background:#eaf1fb;border-radius:4px;padding:0 8px;margin:0}
.price{margin:0;color:var(--accent);font-weight:700;font-size:.9rem}
.more{text-align:right}

.grid3{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.strengths li{background:var(--bg2);border-radius:var(--radius);padding:20px}
.strengths h3{margin:0 0 .4em;color:var(--brand-d)}
.strengths p{margin:0;font-size:.95rem}
.svcs{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.svc{display:flex;flex-direction:column;padding:16px;border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;color:var(--ink);background:#fff}
.svc:hover{border-color:var(--brand)}
.svc b{color:var(--brand-d)}.svc span{font-size:.85rem;color:var(--sub)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:6px 14px;border-radius:999px;background:#eaf1fb;text-decoration:none;font-size:.9rem}
.flow{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}
.flow li{border-top:3px solid var(--brand);padding-top:10px;display:flex;flex-direction:column}
.flow span{font-size:.88rem;color:var(--sub)}
.points{padding-left:1.2em}
.points li{margin:.5em 0}
.points b{display:block}

/* work page */
.work-main img{width:100%;max-height:560px;object-fit:cover;border-radius:var(--radius)}
.spec{width:100%;border-collapse:collapse;margin:20px 0}
.spec th,.spec td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.spec th{width:9em;background:var(--bg2);font-weight:500;white-space:nowrap}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}
.gallery figure{margin:0}.gallery img{border-radius:8px}
.links{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.links a{padding:6px 14px;border:1px solid var(--brand);border-radius:999px;text-decoration:none;font-size:.9rem}

.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:12px 16px 0;margin:0 auto;max-width:1120px;font-size:.8rem;color:var(--sub)}
.crumbs li+li::before{content:"›";margin-right:6px}
.crumbs a{color:var(--sub)}

.faq details{border:1px solid var(--line);border-radius:var(--radius);margin:10px 0;background:#fff}
.faq summary{cursor:pointer;padding:14px 16px;font-weight:700;list-style:none}
.faq summary::before{content:"Q. ";color:var(--brand)}
.faq details>div{padding:0 16px 14px}
.faq details>div::before{content:"A. ";color:var(--accent);font-weight:700}

.greet{background:var(--bg2);border-radius:var(--radius);padding:4px 20px 16px}
.sign{text-align:right;font-weight:700}
.map{width:100%;height:320px;border:0;border-radius:var(--radius)}

/* form */
.form label{display:block;margin:14px 0;font-weight:500}
.form input,.form textarea{display:block;width:100%;margin-top:6px;padding:12px;border:1px solid #cbd2d9;border-radius:8px;font:inherit}
.form fieldset{border:1px solid var(--line);border-radius:8px;margin:14px 0}
.checks{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.checks label{font-weight:400;margin:4px 0}
.checks input{display:inline;width:auto;margin:0 6px 0 0}
.req{display:inline-block;margin-left:8px;font-size:.72rem;background:var(--accent);color:#fff;border-radius:4px;padding:0 6px}
.hp{position:absolute;left:-9999px}
.small{font-size:.82rem;color:var(--sub)}

/* cta band / footer */
.cta-band{background:var(--brand-d);color:#fff;padding:36px 0;text-align:center}
.cta-band h2{border:0;padding:0;margin:0 0 .3em}
.cta-band .cta-btns{justify-content:center}
.ft{background:#16202c;color:#cfd6dd;font-size:.88rem;padding:36px 0 90px}
.ft a{color:#cfd6dd}
.ft-in{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.ft-name{font-weight:700;color:#fff;font-size:1rem}
.ft-h{font-weight:700;color:#fff;margin-bottom:0}
.ft-lic{font-size:.78rem}
.copy{text-align:center;font-size:.75rem;margin-top:24px}
.sp-bar{display:none}

@media (max-width:860px){
  .gnav{display:none}
  .hd-tel{margin-left:auto;font-size:1rem}
  .sp-bar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:30;background:#fff;border-top:1px solid var(--line);box-shadow:0 -2px 10px rgba(0,0,0,.06)}
  .sp-bar a{flex:1;text-align:center;padding:14px 0;font-weight:700;text-decoration:none;color:var(--brand-d)}
  .sp-bar .sp-main{background:var(--accent);color:#fff}
  .hero-in{padding:48px 16px 40px}
  .spec th{width:6.5em}
}
@media (max-width:420px){
  .brand small{display:none}
  .hd-tel small{display:none}
}

/* blog */
.post-list{list-style:none;padding:0;margin:0}
.post-list li{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.post-list time{color:var(--sub);font-size:.85rem}
.post .meta{color:var(--sub);font-size:.85rem;margin:0}
.post-img{width:100%;max-height:520px;object-fit:cover;border-radius:var(--radius);margin:12px 0}