:root{
  --black:#080808;
  --charcoal:#171717;
  --white:#fff;
  --ink:#151515;
  --muted:#5d6670;
  --line:#d7d7d7;
  --blue:#0f4f95;
  --blue-dark:#0a3b72;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic","YuGothic",Meiryo,sans-serif;
  color:var(--ink);
  background:#fff;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;width:100%}
a{text-decoration:none;color:inherit}
.container{width:min(1180px,calc(100% - 48px));margin:0 auto}

.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--black);
  border-bottom:1px solid rgba(255,255,255,.12);
}
.header-inner{
  height:68px;display:flex;align-items:center;justify-content:space-between;gap:32px
}
.brand{
  color:#fff;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;
  font-size:1.22rem;letter-spacing:.08em
}
.main-nav{display:flex;gap:32px;color:#fff;font-size:.86rem;font-weight:700}
.main-nav a{position:relative;padding:24px 0 21px}
.main-nav a:hover::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--blue)
}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:.78rem;font-weight:800;letter-spacing:.12em}

.hero{
  position:relative;min-height:620px;overflow:hidden;background:#111
}
.hero-picture{
  position:absolute;
  inset:0;
  display:block;
}
.hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center center;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(0,0,0,.78) 0%,rgba(0,0,0,.58) 24%,rgba(0,0,0,.12) 52%,rgba(0,0,0,.02) 100%);
}
.hero-inner{position:relative;z-index:2;min-height:620px;display:flex;align-items:center}
.hero-copy{
  width:min(310px,28%);
  color:#fff;
  padding:16px 18px 18px;
  background:rgba(0,0,0,.34);
  border-left:3px solid var(--blue);
}
.hero-kicker{margin:0 0 14px;font-size:.72rem;letter-spacing:.18em;font-weight:800;color:#b8cce2}
.hero h1{
  margin:0;
  font-family:"Yu Mincho","Hiragino Mincho ProN",serif;
  font-size:clamp(1.65rem,2.15vw,2.45rem);
  line-height:1.5;
  letter-spacing:.04em;
  font-weight:500;
  max-width:8.2em;
}
.hero-text{margin:16px 0 0;font-size:.86rem;color:#ececec;max-width:265px}
.hero-actions{display:flex;gap:10px;margin-top:22px}
.btn{
  min-width:132px;
  height:46px;
  display:inline-flex;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  font-size:.84rem;
  font-weight:800;
  border:1px solid rgba(255,255,255,.85)
}
.btn span{font-size:1.4rem;line-height:1}
.btn-blue{background:var(--blue);border-color:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-dark)}
.btn-dark{background:rgba(0,0,0,.42);color:#fff}

.section{padding:72px 0}
.section-heading-row{
  display:flex;justify-content:space-between;align-items:end;gap:24px;
  padding-bottom:14px;border-bottom:1px solid #111;margin-bottom:26px
}
.section-label{
  margin:0;background:var(--black);color:#fff;padding:7px 13px 8px;
  font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:1.45rem;letter-spacing:.04em;font-weight:500
}
.section-link{font-size:.82rem;font-weight:800;color:var(--blue)}
.section-link span{font-size:1.25rem;margin-left:6px}
.section-note{font-size:.82rem;color:var(--muted);text-align:right}

.business-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:14px
}
.business-item{
  position:relative;padding-bottom:14px;border-bottom:2px solid #111
}
.business-item img{height:230px;object-fit:cover}
.business-icon{
  position:absolute;left:0;top:190px;width:40px;height:40px;
  background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.1rem
}
.business-item h3{margin:16px 0 8px;font-size:1rem;line-height:1.45}
.business-item p{margin:0;color:#4f5962;font-size:.84rem}
.business-item a{display:inline-block;margin-top:12px;color:var(--blue);font-size:.8rem;font-weight:800}

.section-projects{padding-top:34px}
.project-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px
}
.project-item{border:1px solid #cfcfcf;background:#fff}
.project-item img{height:160px;object-fit:cover;filter:saturate(.75) contrast(1.03)}
.project-body{padding:18px}
.project-body span{font-size:.7rem;color:var(--blue);font-weight:800}
.project-body h3{margin:5px 0 8px;font-size:1.03rem}
.project-body p{margin:0;font-size:.82rem;color:#5d6670}

.company-table-wrap{border:1px solid #cfcfcf}
.company-table{width:100%;border-collapse:collapse}
.company-table th,.company-table td{
  padding:15px 18px;border-bottom:1px solid #d8d8d8;text-align:left;font-size:.9rem
}
.company-table tr:last-child th,.company-table tr:last-child td{border-bottom:0}
.company-table th{width:220px;background:#f6f6f6;font-weight:800}
.company-table a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}

.contact-band{
  background:var(--black);color:#fff;padding:28px 0;border-top:1px solid #2a2a2a;border-bottom:1px solid #2a2a2a
}
.contact-grid{
  display:grid;grid-template-columns:1.25fr .9fr .75fr;align-items:center;gap:28px
}
.contact-title{display:flex;align-items:center;gap:18px}
.contact-icon{
  width:76px;height:76px;border:1px solid #565656;display:flex;align-items:center;justify-content:center;font-size:1.8rem
}
.contact-title h2{
  margin:0;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:1.4rem;font-weight:500
}
.contact-title p{margin:6px 0 0;color:#d0d0d0;font-size:.82rem}
.contact-phone{padding-left:26px;border-left:1px solid #3d3d3d}
.phone-label{display:block;font-size:.65rem;letter-spacing:.14em;color:#aaa;margin-bottom:2px}
.contact-phone a{font-size:1.8rem;font-weight:700;letter-spacing:.04em}
.contact-btn{
  height:56px;background:var(--blue);display:flex;align-items:center;justify-content:space-between;padding:0 20px;font-size:.86rem;font-weight:800
}
.contact-btn span{font-size:1.3rem}

.site-footer{background:var(--black);color:#fff;padding:34px 0 40px}
.footer-inner{display:flex;align-items:end;justify-content:space-between;gap:30px}
.footer-brand{
  margin:0 0 8px;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:1.15rem;letter-spacing:.05em
}
.footer-copy{margin:0;color:#8f8f8f;font-size:.72rem}
.footer-nav{display:flex;gap:24px;font-size:.78rem;color:#e7e7e7}

@media(max-width:980px){
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#0b0b0b;flex-direction:column;padding:16px 24px;gap:0}
  .main-nav.open{display:flex}.main-nav a{padding:12px 0;border-bottom:1px solid #222}.menu-btn{display:block}
  .business-grid{grid-template-columns:repeat(2,1fr)}
  .project-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr 1fr}.contact-btn{grid-column:1/-1}
}
@media(max-width:640px){
  .container{width:min(100% - 28px,1180px)}
  .header-inner{height:60px}.main-nav{top:60px}.brand{font-size:1rem}
  .hero,.hero-inner{min-height:520px}
  .hero-bg{
    object-position:center 46%;
  }
  .hero-overlay{
    background:linear-gradient(180deg,rgba(0,0,0,.18) 0%,rgba(0,0,0,.10) 36%,rgba(0,0,0,.68) 66%,rgba(0,0,0,.86) 100%);
  }
  .hero-inner{
    align-items:flex-end;
    padding-bottom:26px;
  }
  .hero-copy{
    width:min(250px,76%);
    padding:12px 12px 14px;
    background:rgba(0,0,0,.62);
    border-left:2px solid var(--blue);
  }
  .hero h1{
    font-size:1.34rem;
    line-height:1.5;
    max-width:9em;
  }
  .hero-text{
    font-size:.76rem;
    line-height:1.65;
    max-width:225px;
    margin-top:10px;
  }
  .hero-actions{
    flex-direction:column;
    width:190px;
    margin-top:12px;
  }
  .btn{width:100%}
  .section{padding:52px 0}
  .section-heading-row{align-items:flex-start}
  .section-note{display:none}
  .business-grid{grid-template-columns:1fr}
  .business-item{display:grid;grid-template-columns:42% 58%;grid-template-rows:auto auto auto;column-gap:16px}
  .business-item img{grid-row:1/5;height:180px}
  .business-icon{display:none}
  .business-item h3{margin:0 0 6px}.business-item a{margin-top:8px}
  .project-grid{grid-template-columns:1fr}
  .project-item{display:grid;grid-template-columns:38% 62%}.project-item img{height:100%}
  .company-table th,.company-table td{display:block;width:100%}.company-table th{border-bottom:0;padding-bottom:5px}.company-table td{padding-top:6px}
  .contact-grid{grid-template-columns:1fr}.contact-phone{padding-left:0;border-left:0}.contact-btn{grid-column:auto}
  .footer-inner{flex-direction:column;align-items:flex-start}
  .footer-nav{flex-wrap:wrap}
}