:root{
  --navy:#083f7a;
  --blue:#1261a8;
  --pale:#eef7ff;
  --ink:#17324d;
  --muted:#5c6b78;
  --white:#fff;
  --line:#dbe7f2;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;color:var(--ink);line-height:1.8;background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1160px,92%);margin:auto}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.brand{font-weight:800;font-size:22px;letter-spacing:.03em;white-space:nowrap}
.brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--navy);color:white;margin-right:9px;font-size:14px}
nav{display:flex;gap:24px;font-size:14px;font-weight:700}
.nav-tel{font-weight:800;color:var(--navy);white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 22px;border-radius:6px;font-weight:800;border:1px solid var(--blue);transition:.2s}
.btn-primary{background:var(--navy);color:#fff}
.btn-light{background:#fff;color:var(--navy)}
.hero{min-height:640px;display:flex;align-items:center;background:
linear-gradient(90deg,rgba(3,35,67,.86) 0%,rgba(3,35,67,.62) 45%,rgba(3,35,67,.12) 100%),
url("images/IMG_7731.jpeg") center/cover}
.hero-inner{color:#fff;padding:90px 0}
.eyebrow{font-size:13px;letter-spacing:.18em;font-weight:800;text-transform:uppercase}
.hero h1{font-size:clamp(38px,5vw,66px);line-height:1.2;margin:15px 0 18px;letter-spacing:.02em}
.hero-lead{font-size:20px;font-weight:700}
.hero p{max-width:650px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
section{padding:88px 0}
.section-head{margin-bottom:40px}
.section-head h2{font-size:clamp(30px,4vw,44px);line-height:1.25;margin:8px 0}
.section-head p{color:var(--muted);max-width:720px}
.about{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
.about img{border-radius:12px;height:430px;width:100%;object-fit:cover}
.quote{margin-top:25px;padding:18px 22px;background:var(--navy);color:#fff;border-radius:8px;font-weight:800}
.strengths{background:var(--pale)}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.card-body{padding:22px}
.card h3{margin:0 0 8px;font-size:21px}
.card p{margin:0;color:var(--muted);font-size:14px}
.card img{height:175px;width:100%;object-fit:cover}
.num{color:var(--blue);font-size:13px;font-weight:900;letter-spacing:.12em}
.award{display:grid;grid-template-columns:280px 1fr;gap:45px;align-items:center;background:#f8fbfe}
.award img{width:100%;height:300px;object-fit:cover;border-radius:10px}
.service-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.service{padding:26px 18px;border:1px solid var(--line);border-radius:10px;text-align:center}
.service strong{display:block;color:var(--navy);font-size:18px;margin-bottom:8px}
.works{display:grid;grid-template-columns:2fr 1fr 1fr;grid-auto-rows:230px;gap:14px}
.works img{width:100%;height:100%;object-fit:cover;border-radius:9px}
.works .large{grid-row:span 2}
.contact{background:var(--navy);color:#fff}
.contact .muted{color:#d7e8f8}
.contact-box{display:flex;justify-content:space-between;align-items:center;gap:30px}
.phone{font-size:34px;font-weight:900}
footer{background:#062d55;color:#fff;padding:28px 0}
.footer-row{display:flex;justify-content:space-between;gap:20px;align-items:center}
.small{font-size:12px;color:#d6e3ee}
@media(max-width:900px){
  nav{display:none}.grid4{grid-template-columns:1fr 1fr}.service-grid{grid-template-columns:1fr 1fr 1fr}
  .about{grid-template-columns:1fr}.award{grid-template-columns:1fr}.award img{height:330px}
}
@media(max-width:600px){
  .nav{height:64px}.brand{font-size:18px}.nav-tel{display:none}
  section{padding:62px 0}.hero{min-height:610px}.hero-inner{padding:70px 0}.hero h1{font-size:40px}.hero-lead{font-size:17px}
  .grid4,.service-grid{grid-template-columns:1fr}.works{grid-template-columns:1fr;grid-auto-rows:220px}.works .large{grid-row:span 1}
  .contact-box,.footer-row{flex-direction:column;align-items:flex-start}.phone{font-size:28px}
}

.message{background:#fff}
.message-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:70px;align-items:start}
.message h2{font-size:clamp(30px,4vw,48px);line-height:1.3;margin:8px 0}
.message p{color:var(--muted);margin:0 0 16px}
.message strong{color:var(--navy)}
.flow{background:#f7fafc}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.flow-grid>div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px}
.flow-grid span{display:block;color:var(--blue);font-size:13px;font-weight:900;letter-spacing:.12em;margin-bottom:14px}
.flow-grid strong{display:block;font-size:18px;color:var(--navy);margin-bottom:7px}
.flow-grid p{margin:0;color:var(--muted);font-size:14px}
.final-cta{padding:70px 0;background:#eef7ff}
.final-cta .container{display:flex;justify-content:space-between;align-items:center;gap:30px}
.final-cta h2{font-size:clamp(28px,3.6vw,42px);line-height:1.3;margin:8px 0}
.final-cta p{color:var(--muted);margin:0}
.final-actions{display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:900px){
  .message-grid{grid-template-columns:1fr;gap:25px}
  .flow-grid{grid-template-columns:1fr 1fr}
  .final-cta .container{flex-direction:column;align-items:flex-start}
}
@media(max-width:600px){
  .flow-grid{grid-template-columns:1fr}
}