/* ============================================
   CN9JA.COM — China Wholesale B2B Skin
   Mobile-first responsive
   ============================================ */
:root{
  --navy:#0e2a47; --navy2:#123a63; --blue:#1c5d99; --orange:#ff6b2c; --orange-d:#e85a1f;
  --wa:#25d366; --bg:#f4f6f8; --card:#ffffff; --text:#232c33; --muted:#5d6b78; --line:#e3e8ee;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{font-family:'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;color:var(--text);background:var(--bg);font-size:16px;line-height:1.6;}
img{max-width:100%;display:block;}
a{color:var(--blue);text-decoration:none;}
ul,ol{list-style:none;}
.container{max-width:1200px;margin:0 auto;padding:0 16px;}

/* Buttons */
.btn{display:inline-block;padding:11px 22px;border-radius:6px;font-weight:600;font-size:15px;border:2px solid transparent;cursor:pointer;transition:all .2s;text-align:center;}
.btn-primary{background:var(--orange);color:#fff;}
.btn-primary:hover{background:var(--orange-d);}
.btn-wa{background:var(--wa);color:#fff;}
.btn-wa:hover{background:#1fb959;}
.btn-outline{background:transparent;border-color:#fff;color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.12);}
.btn-lg{padding:14px 30px;font-size:16px;}
.btn-sm{padding:6px 14px;font-size:13px;}

/* Topbar */
.topbar{background:var(--navy);color:#cfe0f0;font-size:13px;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px;gap:10px;}
.topbar a{color:#cfe0f0;}
.topbar a:hover{color:#fff;}

/* Header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;}
.header-in{display:flex;align-items:center;justify-content:space-between;height:68px;gap:14px;}
.logo{font-size:22px;font-weight:800;color:var(--navy);letter-spacing:.4px;line-height:1;}
.logo span{color:var(--orange);}
.nav{display:flex;gap:26px;}
.nav a{color:var(--text);font-weight:600;font-size:15px;padding:4px 0;}
.nav a:hover{color:var(--orange);}
.nav-toggle{display:none;background:none;border:0;font-size:28px;cursor:pointer;color:var(--navy);line-height:1;}

/* Hero */
.hero{background:linear-gradient(120deg,var(--navy) 0%,var(--navy2) 55%,var(--blue) 100%);color:#fff;padding:76px 0;}
.hero h1{font-size:40px;line-height:1.25;max-width:780px;margin-bottom:18px;}
.hero p{font-size:18px;max-width:660px;margin-bottom:32px;color:#d7e4f0;}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;}

/* Sections */
section{padding:52px 0;}
.sec-title{font-size:26px;color:var(--navy);margin-bottom:26px;padding-left:14px;position:relative;}
.sec-title::before{content:'';position:absolute;left:0;top:5px;height:22px;width:5px;background:var(--orange);border-radius:3px;}
.sec-more{float:right;font-size:14px;font-weight:700;color:var(--orange);}

/* Category cards */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px;transition:all .2s;display:block;}
.cat-card:hover{box-shadow:0 8px 24px rgba(14,42,71,.12);transform:translateY(-3px);border-color:var(--blue);}
.cat-badge{width:46px;height:46px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--navy2));color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;margin-bottom:12px;}
.cat-card.b2 .cat-badge{background:linear-gradient(135deg,var(--orange),#ff8a4d);}
.cat-card h3{font-size:17px;color:var(--navy);margin-bottom:6px;}
.cat-card p{font-size:13px;color:var(--muted);margin-bottom:10px;}
.cat-card .more{font-size:13px;font-weight:700;color:var(--orange);}

/* Why us */
.why{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.why-card{text-align:center;padding:20px 14px;}
.why-card .ico{font-size:34px;line-height:1;}
.why-card h3{font-size:16px;color:var(--navy);margin:10px 0 6px;}
.why-card p{font-size:13.5px;color:var(--muted);}

/* Product grid & cards */
.p-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.mini-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.p-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:all .2s;display:flex;flex-direction:column;}
.p-card:hover{box-shadow:0 8px 24px rgba(14,42,71,.12);}
.p-img{height:180px;background:#eef1f4;display:flex;align-items:center;justify-content:center;overflow:hidden;}
.p-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s;}
.p-card:hover .p-img img{transform:scale(1.05);}
.p-body{padding:14px;display:flex;flex-direction:column;flex:1;}
.p-name{font-size:15px;color:var(--navy);margin-bottom:6px;line-height:1.35;}
.p-name a{color:var(--navy);}
.p-name a:hover{color:var(--orange);}
.p-desc{font-size:13px;color:var(--muted);flex:1;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.p-foot{display:flex;align-items:center;justify-content:space-between;}
.p-price{color:var(--orange);font-weight:800;font-size:15px;}

/* News list */
.news-list{max-width:880px;margin:0 auto;}
.news-item{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px 20px;margin-bottom:14px;transition:all .2s;}
.news-item:hover{box-shadow:0 6px 18px rgba(14,42,71,.1);border-color:var(--blue);}
.news-item h3{font-size:17px;margin-bottom:6px;}
.news-item h3 a{color:var(--navy);}
.news-item h3 a:hover{color:var(--orange);}
.meta{font-size:13px;color:var(--muted);margin-bottom:6px;}
.news-desc{font-size:14px;color:var(--text);}

/* Page head / breadcrumb */
.page-head{background:#fff;border-bottom:1px solid var(--line);padding:22px 0;}
.page-head h1{font-size:24px;color:var(--navy);margin-bottom:4px;}
.crumb{font-size:13px;color:var(--muted);}
.crumb a{color:var(--blue);}
.crumb a:hover{color:var(--orange);}

/* Pager */
.pager{text-align:center;margin:30px 0 10px;font-size:14px;}
.pager a,.pager b,.pager span{display:inline-block;padding:7px 13px;margin:0 3px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--blue);}
.pager b{background:var(--navy);color:#fff;border-color:var(--navy);}

/* Detail (product) */
.detail{display:grid;grid-template-columns:2fr 1fr;gap:28px;padding:34px 16px 60px;}
.detail-main{background:#fff;border:1px solid var(--line);border-radius:10px;padding:28px;}
.detail h1{font-size:26px;color:var(--navy);margin-bottom:16px;line-height:1.3;}
.detail-img{background:#f0f3f6;border-radius:8px;margin-bottom:18px;display:flex;align-items:center;justify-content:center;min-height:220px;padding:14px;}
.detail-img img{max-height:360px;object-fit:contain;}
.price{font-size:28px;color:var(--orange);font-weight:800;}
.detail-meta ul{margin:14px 0;}
.detail-meta li{padding:7px 0;border-bottom:1px dashed var(--line);font-size:14px;}
.detail-meta li b{color:var(--navy);}
.detail-cta{display:flex;gap:12px;margin:20px 0;flex-wrap:wrap;}
.detail-desc{line-height:1.85;font-size:15.5px;}
.detail-desc h2,.detail-desc h3{margin:18px 0 8px;color:var(--navy);}
.detail-desc img{max-width:100%;height:auto;border-radius:6px;}
.detail-side{display:flex;flex-direction:column;gap:16px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;}
.side-card h3{font-size:16px;color:var(--navy);margin-bottom:10px;}
.side-card p{font-size:14px;color:var(--muted);}
.side-card ul{font-size:14px;color:var(--muted);}
.side-card li{padding:4px 0;}
.side-card li::before{content:'✓ ';color:var(--wa);font-weight:700;}

/* Article */
.article{max-width:860px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:32px;margin:0 auto 40px;}
.article h1{font-size:28px;color:var(--navy);margin-bottom:10px;}
.article .meta{font-size:14px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.article-body{line-height:1.9;font-size:16px;}
.article-body h2,.article-body h3{margin:20px 0 10px;color:var(--navy);}
.article-body p{margin-bottom:12px;}
.article-body img{max-width:100%;border-radius:6px;margin:8px 0;}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--orange) 0%,#ff8a4d 100%);color:#fff;text-align:center;}
.cta-band h2{font-size:28px;margin-bottom:10px;}
.cta-band p{max-width:640px;margin:0 auto 24px;font-size:16px;opacity:.95;}
.cta-band .btn-primary{background:#fff;color:var(--orange);}
.cta-band .btn-primary:hover{background:#f2f2f2;}

/* Footer */
.site-footer{background:var(--navy);color:#b9c9da;margin-top:56px;}
.footer-in{display:grid;grid-template-columns:2fr 1fr 1fr;gap:34px;padding:46px 16px 30px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:12px;}
.site-footer a{color:#b9c9da;}
.site-footer a:hover{color:#fff;}
.site-footer p{font-size:14px;margin-top:10px;line-height:1.7;}
.site-footer li{padding:4px 0;font-size:14px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px;font-size:13px;text-align:center;}

/* Responsive */
@media(max-width:1024px){
  .cat-grid,.why-grid,.p-grid,.mini-grid{grid-template-columns:repeat(3,1fr);}
}
@media(max-width:768px){
  .topbar .tb-r{display:none;}
  .nav-toggle{display:block;}
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:14px 16px;border-bottom:1px solid var(--line);gap:4px;box-shadow:0 12px 24px rgba(14,42,71,.1);}
  .nav.open{display:flex;}
  .nav a{display:block;padding:10px 4px;border-bottom:1px solid var(--line);}
  .nav li:last-child a{border-bottom:0;}
  .hero{padding:48px 0;}
  .hero h1{font-size:28px;}
  .hero p{font-size:16px;}
  .cat-grid,.why-grid,.p-grid,.mini-grid{grid-template-columns:repeat(2,1fr);gap:12px;}
  .detail{grid-template-columns:1fr;padding:24px 16px 40px;}
  .footer-in{grid-template-columns:1fr;gap:24px;}
  section{padding:38px 0;}
}
@media(max-width:480px){
  .cat-grid,.p-grid,.mini-grid{grid-template-columns:1fr;}
  .p-img{height:200px;}
  .hero h1{font-size:24px;}
  .detail h1{font-size:22px;}
  .article{padding:22px;}
}