:root{
  --navy:#0e1a2b;
  --navy2:#16273f;
  --accent:#c9a24b;      /* gold */
  --accent2:#e7c877;
  --line:rgba(255,255,255,.12);
  --text:#e8ecf3;
  --muted:#9aa7bd;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",sans-serif;
  background:var(--navy);
  color:var(--text);
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 28px}

/* ===== ヘッダー ===== */
header{
  position:fixed;top:0;left:0;width:100%;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 34px;
  transition:.4s;
  backdrop-filter:blur(6px);
}
header.scrolled{background:rgba(14,26,43,.9);padding:14px 34px;box-shadow:0 4px 30px rgba(0,0,0,.4)}
.brand{display:flex;align-items:baseline;gap:14px}
.brand .en{
  font-family:"Times New Roman",serif;font-size:25px;font-weight:700;letter-spacing:5px;
  color:var(--accent2);padding-right:14px;border-right:1px solid var(--line);
}
.brand .jp{font-size:12px;letter-spacing:3px;color:var(--muted)}
nav.menu{display:flex;gap:30px;align-items:center}
nav.menu a{font-size:13px;letter-spacing:1.5px;color:var(--muted);transition:.3s;position:relative}
nav.menu a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--accent);transition:.3s}
nav.menu a:hover{color:#fff}
nav.menu a:hover::after{width:100%}
nav.menu .btn{
  border:1px solid var(--accent);color:var(--accent2);
  padding:9px 20px;border-radius:40px;font-size:12px;letter-spacing:1.5px;
}
nav.menu .btn:hover{background:var(--accent);color:var(--navy)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer}
.burger span{width:26px;height:2px;background:#fff}

/* ===== HERO ===== */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  background:
    linear-gradient(105deg,rgba(9,18,32,.94) 0%,rgba(12,22,38,.8) 42%,rgba(16,30,50,.5) 100%),
    url("img/hero.jpg") center/cover;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:90px 90px;opacity:.5;
}
.hero::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent);opacity:.85;
}
.hero-inner{position:relative;z-index:2}
.tagline{
  display:block;font-size:12px;letter-spacing:5px;color:var(--accent2);margin-bottom:28px;
}
.hero h1{
  font-size:clamp(32px,5.4vw,58px);font-weight:700;line-height:1.5;letter-spacing:3px;
  margin-bottom:28px;
}
.hero h1 b{color:var(--accent2);font-weight:700}
.hero p{color:var(--muted);font-size:15px;max-width:500px;margin-bottom:40px;line-height:2.1}
.hero .cta{display:flex;gap:16px;flex-wrap:wrap}
.cta a{
  padding:15px 36px;font-size:14px;letter-spacing:2px;transition:.3s;
}
.cta .primary{background:var(--accent);color:var(--navy);font-weight:700}
.cta .primary:hover{background:var(--accent2)}
.cta .ghost{border:1px solid rgba(255,255,255,.28);color:#fff}
.cta .ghost:hover{border-color:var(--accent);color:var(--accent2)}

/* ===== セクション共通 ===== */
section.block{padding:110px 0;position:relative}
.eyebrow{font-size:12px;letter-spacing:4px;color:var(--accent);text-transform:uppercase;margin-bottom:16px;padding-left:18px;position:relative}
.eyebrow::before{content:"";position:absolute;left:0;top:50%;width:10px;height:1px;background:var(--accent)}
.head{font-size:clamp(24px,3.6vw,36px);font-weight:700;letter-spacing:3px;line-height:1.5;margin-bottom:18px}
.sub{color:var(--muted);max-width:620px;margin-bottom:56px}

.reveal{opacity:0;transform:translateY(40px);transition:.9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ===== ABOUT ===== */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
.about-txt .head{margin-bottom:26px}
.about-txt p{color:var(--muted);margin-bottom:18px;font-size:14.5px}
.about-visual{
  aspect-ratio:4/5;position:relative;overflow:hidden;
  border:1px solid var(--line);
}
.about-visual img{width:100%;height:100%;object-fit:cover}
.about-visual::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(9,18,32,.15) 0%,rgba(9,18,32,.55) 65%,rgba(9,18,32,.85) 100%);
}
.about-visual .badge{
  position:absolute;left:28px;bottom:28px;z-index:2;
}
.about-visual .badge .en{font-family:"Times New Roman",serif;font-size:30px;letter-spacing:5px;color:var(--accent2)}
.about-visual .badge .jp{font-size:11px;letter-spacing:3px;color:var(--muted);margin-top:4px}
.about-visual .badge::before{content:"";display:block;width:34px;height:1px;background:var(--accent);margin-bottom:16px}

/* ===== BUSINESS ===== */
.biz-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.card{
  background:var(--navy);transition:.35s;position:relative;overflow:hidden;
}
.card .thumb{aspect-ratio:16/9;overflow:hidden;position:relative}
.card .thumb img{width:100%;height:100%;object-fit:cover;filter:brightness(.82) saturate(.85);transition:.6s}
.card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(14,26,43,.9))}
.card:hover .thumb img{transform:scale(1.06)}
.card .body{padding:30px 34px 36px}
.card .ico{font-size:12px;color:var(--accent);margin-bottom:18px;font-weight:700;letter-spacing:2px}
.card h3{font-size:18px;margin-bottom:14px;padding-bottom:14px;letter-spacing:1px;border-bottom:1px solid var(--line)}
.card p{font-size:13.5px;color:var(--muted);line-height:1.9}

/* 事業目的リスト */
.purpose{margin-top:60px;border-top:1px solid var(--line);padding-top:44px}
.purpose h4{font-size:15px;letter-spacing:2px;color:var(--muted);margin-bottom:26px}
.p-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 50px}
.p-list li{
  list-style:none;display:flex;gap:14px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;
}
.p-list li .idx{color:var(--accent);font-size:12px;min-width:26px;letter-spacing:1px;padding-top:2px}

/* ===== COMPANY ===== */
.company-banner{
  position:relative;aspect-ratio:24/9;overflow:hidden;margin-bottom:56px;border:1px solid var(--line);
}
.company-banner img{width:100%;height:100%;object-fit:cover;filter:brightness(.72) saturate(.9)}
.company-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(9,18,32,.8) 0%,rgba(9,18,32,.35) 55%,rgba(9,18,32,.15) 100%);
}
.company-banner .cap{
  position:absolute;left:34px;bottom:30px;z-index:2;
}
.company-banner .cap .en{font-family:"Times New Roman",serif;font-size:13px;letter-spacing:4px;color:var(--accent2)}
.company-banner .cap .jp{font-size:17px;letter-spacing:3px;margin-top:6px}
.company-banner .cap::before{content:"";display:block;width:32px;height:1px;background:var(--accent);margin-bottom:14px}
.company-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
table.company{width:100%;border-collapse:collapse}
table.company tr{border-bottom:1px solid var(--line)}
table.company th,table.company td{padding:18px 6px;text-align:left;vertical-align:top;font-size:14.5px}
table.company th{color:var(--accent2);width:150px;font-weight:600;letter-spacing:1px}
table.company td{color:var(--text)}
.map-card{
  background:var(--navy2);border:1px solid var(--line);
  padding:38px 36px;position:relative;overflow:hidden;
}
.map-card .pin{font-size:11px;letter-spacing:3px;color:var(--accent);margin-bottom:18px;display:block}
.map-card h3{font-size:19px;margin:0 0 14px;letter-spacing:2px}
.map-card p{color:var(--muted);font-size:14px;line-height:2}
.map-card .grid-bg{
  position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:34px 34px;mask:linear-gradient(#000,transparent);
}

/* ===== CONTACT ===== */
.contact{
  text-align:center;position:relative;overflow:hidden;
  background:
    linear-gradient(rgba(9,18,32,.9),rgba(9,18,32,.86)),
    url("img/contact.jpg") center/cover fixed;
}
.contact .wrap{position:relative;z-index:2}
.contact .eyebrow{display:inline-block}
.contact .head{margin-bottom:14px}
.contact-actions{display:flex;gap:1px;justify-content:center;flex-wrap:wrap;margin-top:44px;max-width:760px;margin-left:auto;margin-right:auto;background:var(--line);border:1px solid var(--line)}
.contact-actions a{
  flex:1;display:flex;flex-direction:column;gap:8px;min-width:250px;
  padding:32px 30px;transition:.3s;background:rgba(14,26,43,.92);
}
.contact-actions a:hover{background:var(--navy2)}
.contact-actions .k{font-size:11px;letter-spacing:2px;color:var(--muted)}
.contact-actions .v{font-size:22px;font-weight:700;color:var(--accent2);letter-spacing:1px}

/* ===== FOOTER ===== */
footer{border-top:1px solid var(--line);padding:50px 0 34px}
.foot-grid{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;flex-wrap:wrap}
.foot-brand .en{font-family:"Times New Roman",serif;font-size:24px;letter-spacing:5px;color:var(--accent2)}
.foot-brand .jp{font-size:12px;color:var(--muted);letter-spacing:2px;margin-top:4px}
.foot-info{font-size:13px;color:var(--muted);text-align:right;line-height:2}
.copy{text-align:center;color:var(--muted);font-size:12px;margin-top:40px;letter-spacing:1px}

@media(max-width:860px){
  nav.menu{display:none}
  .about-grid,.company-wrap{grid-template-columns:1fr;gap:40px}
  .biz-grid{grid-template-columns:1fr 1fr}
  .p-list{grid-template-columns:1fr}
  .foot-info{text-align:left}
  .company-banner{aspect-ratio:16/9}
  .contact{background-attachment:scroll}
}
@media(max-width:560px){
  .biz-grid{grid-template-columns:1fr}
  section.block{padding:80px 0}
  .company-banner{aspect-ratio:4/3}
}