*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f8fc;color:#1b2d3f;line-height:1.6}
header{background:#fff;box-shadow:0 2px 10px rgba(22,55,90,.08);position:sticky;top:0;z-index:10}
nav{max-width:1180px;margin:auto;padding:18px 28px;display:flex;align-items:center;justify-content:space-between}
.brand img{height:78px;display:block}
nav ul{display:flex;gap:26px;list-style:none;margin:0;padding:0}
nav a{text-decoration:none;color:#2e5f91;font-weight:600}
nav a:hover{color:#143d63}
.menu-toggle{display:none;background:#2e5f91;color:#fff;border:0;border-radius:8px;padding:8px 12px}
.hero{background:url('assets/hero-workwear.png') center center/cover no-repeat;padding:120px 28px;text-align:left;position:relative}
.hero-inner,.section{max-width:1180px;margin:auto}
.hero h1{font-size:48px;line-height:1.15;margin:0 0 20px;color:#244f78}
.hero p{font-size:19px;max-width:820px;margin:0 auto 30px;color:#4d6477}
.btn{display:inline-block;background:#2e5f91;color:#fff;text-decoration:none;padding:13px 22px;border-radius:10px;font-weight:700}
.section{padding:68px 28px}
.section h1,.section h2{color:#244f78;font-size:36px;margin:0 0 18px}
.lead{font-size:18px;color:#52687b;max-width:880px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{background:#fff;border-radius:16px;box-shadow:0 4px 18px rgba(22,55,90,.08);overflow:hidden}
.card-content{padding:24px}
.card h3,.card h4{margin-top:0;color:#244f78}
.product-card img{width:100%;height:320px;object-fit:contain;display:block;background:#eef4fa;padding:12px}
.product-meta{border-top:1px solid #e3edf6;margin-top:16px;padding-top:14px}
.product-meta h4{font-size:15px;margin:14px 0 5px;color:#2e5f91}
.product-meta p{margin:0;white-space:pre-line}
.category{margin:42px 0 72px}
.category-intro{color:#52687b;max-width:850px}
.standard-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.focus-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:26px}
.focus-item{background:#fff;border-radius:14px;padding:20px;box-shadow:0 4px 18px rgba(22,55,90,.08);font-weight:700;color:#244f78;text-align:center}
.footer{background:#1f3e5b;color:white;padding:34px 28px;margin-top:50px}
.footer-inner{max-width:1180px;margin:auto;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer a{color:white}
.notice{background:#eef5fb;border-left:4px solid #2e5f91;padding:18px;border-radius:10px}
@media(max-width:900px){
  .menu-toggle{display:block}
  nav ul{display:none;position:absolute;left:0;right:0;top:82px;background:#fff;flex-direction:column;padding:22px 28px;box-shadow:0 8px 16px rgba(0,0,0,.08)}
  body.nav-open nav ul{display:flex}
  .hero h1{font-size:34px}
  .grid,.grid-3,.standard-list,.focus-list{grid-template-columns:1fr}
  .product-card img{height:260px}
}


.hero-overlay{
    position:absolute;
    inset:0;
    background:rgba(10,25,40,0.50);
}

.hero-inner{
    position:relative;
    z-index:2;
}

.hero h1{
    color:white;
    max-width:760px;
}

.hero p{
    color:rgba(255,255,255,0.94);
    max-width:860px;
    line-height:1.8;
    font-size:20px;
}