:root{
  --bg:#fbfaf6;
  --surface:#ffffff;
  --ink:#2e302d;
  --muted:#6c716b;
  --green:#4f806d;
  --green-dark:#35604f;
  --green-soft:#eaf2ee;
  --beige:#eadfce;
  --line:#e7e4dc;
  --shadow:0 16px 40px rgba(45,55,48,.09);
  --radius:18px;
  --container:min(1120px, calc(100% - 40px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.8;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
.container{width:var(--container);margin-inline:auto}
.section{padding:88px 0}
.section--white{background:var(--surface)}
.section--soft{background:linear-gradient(180deg,#f7f3ea,#fbfaf6)}
.eyebrow{
  color:var(--green);font-weight:800;letter-spacing:.16em;
  font-size:.8rem;text-transform:uppercase;margin-bottom:12px;
}
h1,h2,h3{line-height:1.35;margin:0 0 18px}
h1{font-size:clamp(2.3rem,5vw,4.8rem);letter-spacing:-.03em}
h2{font-size:clamp(1.8rem,3vw,3rem);letter-spacing:-.02em}
h3{font-size:1.25rem}
.lead{font-size:1.05rem;color:var(--muted);max-width:760px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:42px}
.section-head p{margin:0;max-width:620px;color:var(--muted)}
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);border-bottom:1px solid rgba(231,228,220,.85)
}
.header-inner{height:88px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:14px;min-width:230px}
.brand img{width:92px;height:60px;object-fit:cover;background:#000}
.brand-copy strong{display:block;font-size:1.08rem}
.brand-copy span{display:block;font-size:.72rem;color:var(--muted);letter-spacing:.08em}
.nav{display:flex;align-items:center;gap:28px;font-weight:700;font-size:.95rem}
.nav a{position:relative}
.nav a:not(.btn)::after{
  content:"";position:absolute;left:0;right:100%;bottom:-7px;height:2px;background:var(--green);transition:.25s
}
.nav a:hover::after,.nav a[aria-current="page"]::after{right:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 24px;border-radius:999px;border:1px solid transparent;
  font-weight:800;transition:.22s;cursor:pointer
}
.btn--primary{background:var(--green);color:white}
.btn--primary:hover{background:var(--green-dark);transform:translateY(-2px)}
.btn--ghost{background:white;border-color:#cfcfc8}
.btn--ghost:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
.menu-btn{display:none;border:0;background:transparent;font-size:1.7rem}
.hero{position:relative;min-height:720px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(21,27,24,.83) 0%,rgba(21,27,24,.55) 44%,rgba(21,27,24,.12) 72%,rgba(21,27,24,.04) 100%);
  z-index:1
}
.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-content{position:relative;z-index:2;width:var(--container);margin:auto;padding:80px 0;max-width:1120px}
.hero-copy{max-width:700px}
.hero .eyebrow{color:#d9eadf}
.hero p{font-size:1.12rem;max-width:620px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero-meta{margin-top:20px;font-size:.95rem;color:#eef5f1}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:0 6px 18px rgba(42,50,46,.04)
}
.card-media{aspect-ratio:4/3;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:.4s}
.card:hover .card-media img{transform:scale(1.035)}
.card-body{padding:24px}
.card-body p{color:var(--muted);margin:0}
.icon-card{padding:30px}
.icon{
  width:54px;height:54px;border-radius:16px;background:var(--green-soft);color:var(--green);
  display:grid;place-items:center;font-size:1.45rem;margin-bottom:20px
}
.problem-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:52px}
.check-list{display:grid;gap:12px;padding:0;margin:24px 0;list-style:none}
.check-list li{display:flex;gap:12px;align-items:flex-start}
.check-list li::before{
  content:"✓";width:26px;height:26px;border-radius:50%;background:var(--green);color:white;
  display:grid;place-items:center;flex:0 0 auto;font-size:.82rem;font-weight:900;margin-top:2px
}
.reason-list{display:grid;gap:16px}
.reason{
  background:white;border:1px solid var(--line);border-radius:16px;padding:22px;
  display:grid;grid-template-columns:60px 1fr;gap:16px
}
.reason .num{font-weight:900;color:var(--green);font-size:1.35rem}
.ba-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.ba-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ba-item{position:relative;border-radius:16px;overflow:hidden;background:#ddd;aspect-ratio:4/3}
.ba-item img{width:100%;height:100%;object-fit:cover}
.badge{position:absolute;top:12px;left:12px;background:rgba(33,37,34,.84);color:white;border-radius:999px;padding:5px 12px;font-size:.78rem;font-weight:800}
.note{font-size:.86rem;color:var(--muted);margin-top:14px}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.step{text-align:center;position:relative}
.step-num{width:40px;height:40px;border-radius:50%;background:var(--green);color:white;display:grid;place-items:center;margin:0 auto 14px;font-weight:900}
.step-icon{width:88px;height:88px;border:1px solid #cbd9d2;border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;font-size:2rem;background:white}
.step p{color:var(--muted);font-size:.9rem}
.cta{
  background:linear-gradient(135deg,#edf5f1,#f4eadc);
  border:1px solid #dfe7e1;border-radius:28px;padding:42px;
  display:flex;align-items:center;justify-content:space-between;gap:28px
}
.page-hero{padding:100px 0 72px;background:linear-gradient(135deg,#edf5f1,#f8f3e9);border-bottom:1px solid var(--line)}
.page-hero .lead{max-width:700px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.photo-frame{border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
.table-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:white}
.info-table{width:100%;border-collapse:collapse}
.info-table th,.info-table td{padding:18px 20px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.info-table th{width:28%;background:#f8f6f0}
.service-list{display:grid;gap:18px}
.service-row{
  background:white;border:1px solid var(--line);border-radius:20px;padding:28px;
  display:grid;grid-template-columns:70px 1fr;gap:18px
}
.works-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.work-card{background:white;border-radius:20px;overflow:hidden;border:1px solid var(--line)}
.work-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.work-card .card-body{padding:22px}
.contact-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:36px}
.contact-box{background:white;border:1px solid var(--line);border-radius:20px;padding:28px}
.form-grid{display:grid;gap:16px}
label{font-weight:700;font-size:.92rem}
input,textarea,select{
  width:100%;border:1px solid #d7d7d0;border-radius:12px;background:white;
  padding:14px 15px;color:var(--ink)
}
textarea{min-height:150px;resize:vertical}
.footer{background:#252a27;color:#e8eee9;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
.footer a{color:#e8eee9}
.footer small{color:#aab5ae}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:20px;display:flex;justify-content:space-between;gap:20px}
.reveal{opacity:0;transform:translateY(18px);transition:.65s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (max-width:900px){
  .header-inner{height:74px}
  .brand{min-width:auto}
  .brand-copy{display:none}
  .brand img{width:72px;height:48px}
  .menu-btn{display:block}
  .nav{
    display:none;position:absolute;left:0;right:0;top:74px;background:white;
    padding:18px 20px 24px;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:8px
  }
  .nav.is-open{display:flex}
  .nav a{padding:10px 0}
  .hero{min-height:650px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.problem-wrap,.two-col,.contact-layout,.footer-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:last-child{grid-column:1/-1}
  .ba-grid{grid-template-columns:1fr}
  .section-head{display:block}
  .section-head p{margin-top:12px}
}
@media (max-width:620px){
  :root{--container:min(100% - 28px,1120px)}
  .section{padding:64px 0}
  .hero{min-height:610px}
  .hero::before{background:linear-gradient(90deg,rgba(21,27,24,.88),rgba(21,27,24,.5))}
  .hero-actions .btn{width:100%}
  .grid-3,.grid-4,.works-grid,.ba-pair,.steps{grid-template-columns:1fr}
  .cta{padding:28px;display:block}
  .cta .btn{margin-top:18px;width:100%}
  .footer-bottom{display:block}
  .reason{grid-template-columns:48px 1fr}
}