:root{
  --bg:#ffffff; --muted:#6b7280; --text:#0b1220; --accent:#ef4444; --line:#e6edf3; --card:#fff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family: 'Noto Sans JP', system-ui, -apple-system, "Segoe UI", Roboto, Arial;}
body{background:var(--bg);color:var(--text);line-height:1.6;}
.container{max-width:1100px;margin:0 auto;padding:0 20px;}
.site-header{position:sticky;top:0;background:white;border-bottom:1px solid var(--line);z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800}
.logo-badge{width:44px;height:44px;border-radius:8px;background:linear-gradient(135deg,#ef4444,#fb923c);display:grid;place-items:center;color:white;font-weight:900}
.nav{display:flex;gap:18px}
.nav a{color:var(--muted);font-weight:600}
.menu-toggle{display:none;border:1px solid var(--line);background:transparent;padding:8px;border-radius:8px;cursor:pointer}
.menu-toggle .bar{display:block;width:20px;height:2px;background:var(--text);position:relative}
.menu-toggle .bar::before,.menu-toggle .bar::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--text);}
.menu-toggle .bar::before{transform:translateY(-7px)}
.menu-toggle .bar::after{transform:translateY(7px)}

/* Hero slider */
.hero{padding:0;border-bottom:1px solid var(--line)}
.slider{position:relative;overflow:hidden;border-radius:8px}
.slide-track{display:flex;transition:transform .6s ease}
.slide{min-width:100%;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:20px;padding:40px}
.slide img{width:100%;height:360px;object-fit:cover;border-radius:8px}
.slide .eyebrow{color:var(--accent);font-weight:700;margin-bottom:8px}
.slider-controls{position:absolute;left:16px;right:16px;top:50%;transform:translateY(-50%);display:flex;justify-content:space-between;pointer-events:none}
.ctrl{pointer-events:auto;background:rgba(255,255,255,0.9);border-radius:8px;padding:8px;border:1px solid var(--line);cursor:pointer}

/* Categories */
.section{padding:48px 0;border-bottom:1px solid var(--line)}
.categories{display:flex;gap:12px;flex-wrap:wrap}
.cat{flex:1 1 30%;min-width:160px;background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;text-align:center;padding:18px}

/* Products grid */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column}
.card img{width:100%;height:240px;object-fit:cover}
.card .pad{padding:12px;flex:1}
.price{font-weight:800;color:var(--accent);margin-top:8px}

/* Promo banner */
.promo{background:linear-gradient(90deg,#ef4444,#fb923c);color:white;padding:18px;border-radius:10px;text-align:center}

/* Footer */
.site-footer{background:#0b1220;color:#dbeafe;padding:28px 0;margin-top:28px}
.site-footer a{color:#fce7f3}

/* Mobile */
@media (max-width:900px){
  .nav{display:none}
  .menu-toggle{display:inline-flex}
  .mobile-panel{display:none;position:fixed;top:68px;left:0;right:0;background:white;border-top:1px solid var(--line);z-index:49}
  .mobile-links{display:grid;padding:12px}
  .mobile-open .mobile-panel{display:block}
  .slide{grid-template-columns:1fr;padding:20px}
  .slide img{height:220px}
  .grid-3{grid-template-columns:1fr}
  .cat{flex-basis:48%}
  .card img{height:200px}
  .btn{width:100%;justify-content:center;display:inline-flex}
  input,textarea{font-size:16px}
}