:root{
  --blue:#2957aa;
  --blue-dark:#1c2b4a;
  --blue-light:#eaf0fb;
  --bg:#ffffff;
  --card:#ffffff;
  --text:#1c2b4a;
  --text-muted:#5c6b85;
  --border:#e1e7f2;
  --ok:#198754;
  --ok-bg:#e6f6ee;
  --used:#ffc107;
  --refurb:#0dcaf0;
  --err:#dc3545;
  --err-bg:#fdecea;
  --notice:#dc3545;
  --shadow: 0 2px 10px rgba(28,43,74,.06);
  --radius:12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*{box-sizing:border-box;}
html{overflow-x:hidden;}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);font-size:15px;overflow-x:hidden;}
a{color:inherit;text-decoration:none;}

.shop-header{
  background:#000; color:#fff; padding:14px 24px;
  display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
}
.shop-logo img{height:48px; width:auto; display:block;}
.back-link{font-size:14px; opacity:.85; display:flex; align-items:center; gap:6px;}
.back-link:hover{opacity:1;}

.wrap{max-width:1180px; margin:0 auto; padding:28px 24px 60px;}

h1{font-size:28px; margin:0 0 6px;}

.notice{color:var(--notice); font-weight:600; font-size:14.5px; margin:0 0 14px;}
.intro-text{font-size:14.5px; line-height:1.65; color:var(--text); max-width:1000px; margin-bottom:24px;}
.intro-text p{margin:0 0 14px;}

.toolbar{
  background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  box-shadow:var(--shadow); padding:16px; display:flex; gap:10px; margin-bottom:16px; flex-wrap:wrap;
}
.search{flex:1; min-width:220px; border:1px solid var(--border); border-radius:8px; padding:12px 16px; font-size:15px; background:var(--bg); color:var(--text); font-family:var(--font);}
.sort{border:1px solid var(--border); border-radius:8px; padding:12px 16px; font-size:15px; background:var(--bg); color:var(--text); font-family:var(--font);}
.search-btn{background:var(--blue); color:#fff; border:none; border-radius:8px; padding:12px 24px; font-size:15px; font-weight:700; cursor:pointer;}
.reset-btn{display:inline-flex; align-items:center; border:1px solid var(--border); border-radius:8px; padding:12px 20px; font-size:15px; font-weight:600; color:var(--text); background:var(--card); cursor:pointer;}
.reset-btn:hover{background:var(--blue-light);}

.result-count{font-size:14px; color:var(--text-muted); margin:0 0 16px;}
.empty-state{color:var(--text-muted); font-size:15px; padding:30px 0;}

.grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(250px,1fr)); gap:18px;}
.card{
  background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  box-shadow:var(--shadow); overflow:hidden; display:flex; flex-direction:column;
  transition:box-shadow .15s ease, transform .15s ease;
}
.card:hover{box-shadow:0 6px 18px rgba(28,43,74,.12); transform:translateY(-2px);}
.card .img{
  height:150px; background:#fff;
  display:flex; align-items:center; justify-content:center; overflow:hidden;
}
.card .img img{width:100%; height:100%; object-fit:contain;}
.card .body{padding:14px 16px 16px; display:flex; flex-direction:column; gap:8px; flex:1;}
.card .name{font-weight:700; font-size:15.5px; color:var(--blue); line-height:1.35;}
.card .brand{font-size:13px; color:var(--text-muted);}
.card .sku{font-size:12.5px; color:var(--text-muted);}
.card .sku code{background:transparent; font-family:ui-monospace,SFMono-Regular,Menlo,monospace;}
.badges{display:flex; gap:6px; flex-wrap:wrap;}
.badge{font-size:11.5px; font-weight:700; padding:4px 10px; border-radius:999px;}
.badge.used{background:var(--used); color:#1c2b4a;}
.badge.refurbished{background:var(--refurb); color:#1c2b4a;}
.badge.new{background:var(--ok); color:#fff;}
.badge.stock{background:var(--ok); color:#fff;}
.badge.out{background:var(--err); color:#fff;}
.price{margin-top:auto; padding-top:6px; font-size:18px; font-weight:700; color:var(--text);}
.price small{font-size:12px; font-weight:400; color:var(--text-muted);}

.detail-box{
  background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  box-shadow:var(--shadow); padding:24px;
}
.d-back{
  display:inline-flex; align-items:center; gap:6px; color:var(--blue); font-size:14px; font-weight:600;
  margin-bottom:18px;
}
.detail-top{display:flex; gap:28px; align-items:flex-start; flex-wrap:wrap;}
.gallery{flex:1 1 320px; min-width:0; max-width:410px;}
.detail-info{flex:1 1 280px; min-width:0;}
.gallery-main{
  width:100%; aspect-ratio:4 / 3; border-radius:var(--radius); background:linear-gradient(135deg,var(--blue-light),var(--bg));
  border:1px solid var(--border); display:flex; align-items:center; justify-content:center; overflow:hidden;
}
.gallery-main img{width:100%; height:100%; object-fit:contain; cursor:zoom-in;}
.gallery-thumbs{display:flex; gap:8px; margin-top:10px; flex-wrap:wrap;}
.gallery-thumb{
  width:64px; height:64px; padding:0; border-radius:8px; border:2px solid var(--border); background:var(--bg);
  overflow:hidden; cursor:pointer; flex-shrink:0;
}
.gallery-thumb img{width:100%; height:100%; object-fit:cover; display:block;}
.gallery-thumb.active{border-color:var(--blue);}

.lightbox-overlay{
  position:fixed; inset:0; background:rgba(0,0,0,.85); display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transition:opacity .15s ease; z-index:1000;
}
.lightbox-overlay.open{opacity:1; visibility:visible;}
.lightbox-overlay img{max-width:90vw; max-height:90vh; object-fit:contain; border-radius:8px; cursor:default;}
.lightbox-close{
  position:absolute; top:20px; right:28px; background:none; border:none; color:#fff; font-size:30px;
  cursor:pointer; line-height:1;
}
.lightbox-nav{
  position:absolute; top:50%; transform:translateY(-50%); background:rgba(255,255,255,.12); border:none;
  color:#fff; font-size:34px; width:52px; height:52px; border-radius:50%; cursor:pointer;
  display:flex; align-items:center; justify-content:center; line-height:1;
}
.lightbox-nav:hover{background:rgba(255,255,255,.28);}
.lightbox-prev{left:16px;}
.lightbox-next{right:16px;}
@media (max-width:600px){
  .lightbox-nav{width:42px; height:42px; font-size:26px;}
  .lightbox-prev{left:6px;}
  .lightbox-next{right:6px;}
}

.d-title{font-size:22px; font-weight:700; margin:0 0 8px; color:var(--blue);}
.d-meta{font-size:14px; margin-bottom:6px;}
.d-meta b{color:var(--text);}
.d-meta span{color:var(--text-muted);}
.d-sku{font-size:14px; margin-bottom:10px; color:var(--text-muted);}
.d-sku code{background:var(--bg); padding:1px 6px; border-radius:4px; font-size:13px; word-break:break-word;}
.d-price-box{
  background:var(--blue-light); border:1px solid #b0c8f0; border-radius:8px; padding:12px 16px; margin-top:12px; max-width:340px;
}
.d-price{font-size:24px; font-weight:700; margin:0; color:var(--blue);}
.d-price small{display:block; font-size:12px; font-weight:400; color:var(--text-muted); margin-top:2px;}

.section{margin-top:32px;}
.section h2{
  font-size:18.5px; font-weight:700; color:var(--blue); margin:0 0 12px; padding-bottom:8px; border-bottom:2px solid var(--blue);
}
.section-text{font-size:14.5px; line-height:1.7; color:var(--text);}
.section-text p{margin:0 0 10px;}
.section-text a{color:var(--blue); text-decoration:underline;}
.section-text a:hover{color:var(--blue-dark);}

.specs-table{width:100%; border-collapse:collapse; border-top:1px solid var(--border); font-size:14px;}
.specs-table td{padding:9px 8px; border-bottom:1px solid var(--border); vertical-align:top;}
.specs-table tr:nth-child(odd){background:var(--blue-light);}
.specs-table td:first-child{color:var(--text-muted); width:55%;}
.specs-table td:last-child{font-weight:600;}

.inquiry{max-width:640px;}
.field{margin-bottom:14px;}
.field-row{display:flex; gap:14px;}
.field-row .field{flex:1;}
.field label{display:block; font-size:13.5px; color:var(--text); margin-bottom:5px; font-weight:600;}
.field input, .field textarea{
  width:100%; border:1px solid var(--border); border-radius:6px; padding:11px 13px; font-size:14.5px;
  font-family:var(--font); background:var(--card); color:var(--text);
}
.field input:focus, .field textarea:focus{outline:2px solid var(--blue); outline-offset:1px;}
.field textarea{min-height:320px; resize:vertical; white-space:pre-wrap; color:var(--text-muted);}
.field-hint{font-size:12.5px; color:var(--text-muted); margin-top:5px;}
.radio-group{display:flex; flex-direction:column; gap:6px; font-size:14px;}
.radio-group label{display:flex; align-items:center; gap:8px; font-weight:400;}
.radio-group input{width:auto;}
.hp-field{position:absolute; left:-9999px; top:-9999px;}
.recaptcha-field{overflow:visible;}
.recaptcha-field .g-recaptcha{transform-origin:0 0;}

@media (max-width:370px){
  .recaptcha-field .g-recaptcha{transform:scale(0.87);}
  .recaptcha-field{height:68px;}
}
@media (max-width:330px){
  .recaptcha-field .g-recaptcha{transform:scale(0.77);}
  .recaptcha-field{height:60px;}
}
.send-btn{
  background:var(--blue); color:#fff; border:none; border-radius:6px; padding:13px 32px;
  font-size:15px; font-weight:700; cursor:pointer; display:inline-block;
}
.send-btn:hover{background:#20437f;}
.form-success{background:var(--ok-bg); color:var(--ok); border:1px solid var(--ok); border-radius:8px; padding:14px 16px; font-size:14.5px; max-width:640px;}
.form-error{background:var(--err-bg); color:var(--err); border:1px solid var(--err); border-radius:8px; padding:12px 16px; font-size:14px; margin-bottom:14px; max-width:640px;}

.share-row{margin-top:36px; display:flex; align-items:center; gap:10px; font-size:13px; color:var(--text-muted); font-weight:600;}
.share-row .icon{
  width:26px; height:26px; border-radius:50%; background:var(--blue-light); display:flex; align-items:center; justify-content:center; font-size:12px; color:var(--blue);
}

.not-found{padding:60px 0; text-align:center;}

@media (max-width:600px){
  .detail-top{flex-direction:column;}
  .gallery{max-width:100%;}
  .field-row{flex-direction:column; gap:0;}
  .detail-box{padding:16px;}
  .toolbar{flex-direction:column; align-items:stretch;}
  .search{min-width:0; width:100%;}
  .sort, .search-btn, .reset-btn{width:100%; justify-content:center;}
}