/* Yige B2B — factory site style (paper-cup.net inspired) */
:root{
  --blue:#0B5FA5; --blue-d:#0A4C85; --blue-xd:#0A3A66;
  --accent:#F5A623; --dark:#10314F; --bg:#F5F8FB; --line:#E3EAF2;
  --txt:#243447; --muted:#6B7C93; --ok:#1E9E5A;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",system-ui,-apple-system,"Noto Sans","Noto Sans Arabic",sans-serif;color:var(--txt);background:#fff;line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.center{text-align:center}

/* topbar */
.topbar{background:var(--blue-xd);color:#cfe2f5;font-size:13px}
.topbar-in{display:flex;gap:24px;padding:7px 20px;flex-wrap:wrap}

/* nav */
.nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;box-shadow:0 1px 8px rgba(16,49,79,.06)}
.nav-in{display:flex;align-items:center;gap:28px;padding:12px 20px}
.logo{display:flex;align-items:center;gap:10px;color:var(--blue-d)}
.logo-mark{background:var(--blue);color:#fff;font-weight:800;border-radius:8px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-size:20px;flex:none}
.logo-txt{font-weight:800;font-size:19px;line-height:1.15;color:var(--dark)}
.logo-txt small{display:block;font-weight:500;font-size:10.5px;color:var(--muted);letter-spacing:.2px}
.menu{display:flex;gap:4px;margin-inline-start:auto}
.menu a{padding:10px 16px;border-radius:8px;font-weight:600;font-size:15px;color:var(--dark)}
.menu a:hover{background:var(--bg);color:var(--blue)}
.lang-sw{font-size:12.5px;color:var(--muted);white-space:nowrap}
.lang-opt{padding:3px 6px;border-radius:5px}
.lang-opt.on{background:var(--blue);color:#fff;font-weight:700}
.lang-sep{color:var(--line)}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:8px;font-size:20px;padding:4px 12px;cursor:pointer}

/* hero (white) */
.oem-badge{display:inline-block;background:linear-gradient(90deg,var(--accent),#FF7A3C);color:#fff;font-weight:800;font-size:14px;letter-spacing:.6px;padding:9px 20px;border-radius:99px;margin-bottom:18px;box-shadow:0 6px 16px rgba(245,166,35,.35)}
.hero{background:#fff;border-bottom:1px solid var(--line);overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:40px;padding:56px 20px}
.hero-txt h1{font-size:40px;line-height:1.2;margin-bottom:16px;color:var(--dark)}
.hero-txt p{font-size:17px;color:var(--muted);max-width:520px;margin-bottom:26px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-img{position:relative;display:flex;justify-content:center}
.hero-slides{position:relative;width:100%;max-width:420px;height:min(420px,58vw)}
.hero-slides .slide{position:absolute;inset:0;margin:auto;width:auto;max-width:100%;max-height:100%;object-fit:contain;opacity:0;transition:opacity .6s ease}
.hero-slides .slide.on{opacity:1}

/* hot sellers chips */
.hero-hot{margin-top:30px}
.hero-hot-label{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.hero-hot-row{display:flex;gap:12px;flex-wrap:wrap}
.hot-chip{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:11px;padding:8px 14px;background:#fff;transition:border-color .15s;max-width:250px}
.hot-chip:hover{border-color:var(--blue)}
.hot-chip img{width:46px;height:46px;object-fit:contain;flex:none}
.hot-chip span{font-size:12.5px;font-weight:700;color:var(--dark);line-height:1.3}
.hot-chip b{color:var(--accent);margin-inline-start:auto;font-size:16px}

/* buttons */
.btn{display:inline-block;padding:12px 26px;border-radius:9px;font-weight:700;font-size:15px;transition:.15s;cursor:pointer;border:none}
.btn-primary{background:var(--accent);color:#3A2500}
.btn-primary:hover{background:#ffb63e}
.btn-ghost{border:2px solid var(--blue);color:var(--blue)}
.btn-ghost:hover{background:var(--blue);color:#fff}
.btn-outline{border:2px solid var(--blue);color:var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-lg{font-size:17px;padding:14px 34px}

/* sections */
.section{padding:64px 0}
.section.alt{background:#fff}
.sec-head{text-align:center;max-width:760px;margin:0 auto 40px}
.sec-head small{color:var(--accent);font-weight:800;letter-spacing:1.5px;text-transform:uppercase;font-size:12.5px}
.sec-head h2{font-size:30px;color:var(--dark);margin:8px 0 10px}
.sec-head p{color:var(--muted)}

/* category cards */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.cat-card{border:1px solid var(--line);border-radius:12px;padding:22px 16px;text-align:center;transition:.15s;background:#fff}
.cat-card:hover{border-color:var(--blue);box-shadow:0 8px 22px rgba(11,95,165,.12);transform:translateY(-3px)}
.cat-card b{display:block;color:var(--dark);font-size:15.5px;margin-bottom:4px}
.cat-card span{color:var(--muted);font-size:13px}

/* stats band */
.stats{background:var(--dark);color:#fff;padding:36px 0}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:20px;text-align:center}
.stat-grid b{font-size:34px;color:var(--accent)}
.stat-grid span{display:block;font-size:13.5px;color:#B9CBDD;margin-top:4px}

/* about */
.about-sec .about-in{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center}
.about-img{position:relative}
.about-img img{border-radius:14px;box-shadow:0 14px 34px rgba(16,49,79,.18);max-height:360px;object-fit:cover;width:100%}
.about-txt small{color:var(--accent);font-weight:800;text-transform:uppercase;letter-spacing:1.5px;font-size:12.5px}
.about-txt h2{font-size:29px;color:var(--dark);margin:8px 0 16px}
.about-txt p{color:var(--muted);margin-bottom:20px}

/* product cards */
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px;margin-bottom:34px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.15s;display:flex;flex-direction:column}
.pcard:hover{box-shadow:0 10px 26px rgba(11,95,165,.14);transform:translateY(-3px);border-color:#BAD3EA}
.pcard-img{background:#fff;height:230px;display:flex;align-items:center;justify-content:center;padding:18px}
.pcard-img img{max-height:100%;object-fit:contain}
.pcard-body{padding:14px 16px 16px;border-top:1px solid var(--line)}
.pcard-body h3{font-size:15px;color:var(--dark);line-height:1.35}
.pcard-meta{font-size:12.5px;color:var(--muted);margin-top:6px}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.why-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:30px 24px;text-align:center}
.why-ico{font-size:34px;margin-bottom:10px}
.why-card h3{color:var(--dark);margin-bottom:8px}
.why-card p{color:var(--muted);font-size:14px}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;display:flex;flex-direction:column;transition:.15s}
.news-card:hover{box-shadow:0 10px 26px rgba(11,95,165,.12)}
.news-date{color:var(--accent);font-size:12.5px;font-weight:700}
.news-card h3{color:var(--dark);font-size:17px;margin:8px 0 10px}
.news-card p{color:var(--muted);font-size:14px;flex:1}
.news-more{color:var(--blue);font-weight:700;font-size:14px;margin-top:12px}

/* page head */
.page-head{background:linear-gradient(115deg,var(--blue-xd),var(--blue));color:#fff;padding:44px 0}
.page-head h1{font-size:28px}
.page-head p{color:#cfe2f5;margin-top:6px}

/* products page */
.searchbar{display:flex;gap:10px;margin:18px 0 16px;max-width:560px}
.searchbar input[type=search]{flex:1;padding:11px 16px;border:1px solid var(--line);border-radius:9px;font-size:15px}
.cat-row{display:flex;gap:8px;flex-wrap:wrap}
.cat-row a{padding:7px 14px;border:1px solid var(--line);border-radius:99px;font-size:13.5px;font-weight:600;color:var(--muted);background:#fff}
.cat-row a.on,.cat-row a:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.pager{display:flex;gap:6px;justify-content:center;flex-wrap:wrap}
.pager a{min-width:38px;text-align:center;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font-weight:600;color:var(--muted)}
.pager a.on{background:var(--blue);color:#fff;border-color:var(--blue)}

/* product detail */
.pdetail{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.pmain{border:1px solid var(--line);border-radius:14px;background:#fff;height:420px;width:100%;object-fit:contain;padding:24px}
.pthumbs{display:flex;gap:10px;margin-top:12px}
.pthumbs img{width:74px;height:74px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:8px;cursor:pointer;padding:6px}
.pinfo h2{color:var(--dark);font-size:21px;margin-bottom:14px}
.spec{width:100%;border-collapse:collapse;margin-bottom:18px}
.spec td{border:1px solid var(--line);padding:10px 14px;font-size:14.5px}
.spec td:first-child{background:#fff;font-weight:700;color:var(--dark);width:38%}
.note{background:#FFF7E8;border:1px solid #F5D9A8;color:#7A5A17;border-radius:10px;padding:12px 16px;font-size:13.5px;margin-bottom:22px}
.muted{color:var(--muted);font-size:13px;margin-top:10px}

/* contact */
.contact-in{display:grid;grid-template-columns:1fr 1.4fr;gap:40px;align-items:start}
.contact-info{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px}
.contact-info h3{color:var(--dark);margin-bottom:14px}
.contact-info p{margin-bottom:10px}
.contact-hours{margin-top:20px;border-top:1px dashed var(--line);padding-top:14px}
.contact-form{display:grid;gap:12px}
.contact-form input,.contact-form textarea{padding:12px 16px;border:1px solid var(--line);border-radius:9px;font-size:15px;font-family:inherit;width:100%}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--blue);border-color:var(--blue)}
.alert-ok{background:#EAF7F0;border:1px solid #BCE3CD;color:var(--ok);border-radius:10px;padding:14px 18px;margin-bottom:16px;font-weight:600}

/* article */
.article{max-width:820px;font-size:16.5px}
.article h2{color:var(--dark);margin:22px 0 10px;font-size:22px}
.article h3{color:var(--dark);margin:18px 0 8px}
.article p{margin-bottom:14px;color:#3A4A5E}
.article ul{margin:0 0 14px 22px}
.article li{margin-bottom:6px}

/* footer */
.footer{background:var(--blue-xd);color:#B9CFE4;padding:48px 0 0;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:34px}
.footer h4{color:#fff;margin-bottom:14px;font-size:15.5px}
.footer a{display:block;margin-bottom:9px;color:#B9CFE4}
.footer a:hover{color:#fff}
.footer p{margin-bottom:9px}
.copyright{border-top:1px solid rgba(255,255,255,.12);text-align:center;padding:16px;font-size:13px;color:#8FA9C4}

/* RTL */
html[dir="rtl"] .menu{margin-inline-start:auto}
html[dir="rtl"] body{font-family:"Segoe UI","Noto Naskh Arabic",Tahoma,sans-serif}

/* responsive */
.menu-langs{display:none}
@media(max-width:920px){
  .hero-in,.about-in,.pdetail,.contact-in{grid-template-columns:1fr}
  .hero-txt h1{font-size:30px}
  .hero-img2{display:none}
  .about-img2{display:none}
  .menu{display:none;position:absolute;top:100%;inset-inline:0;background:#fff;flex-direction:column;padding:12px 20px;border-bottom:1px solid var(--line);box-shadow:0 10px 20px rgba(0,0,0,.08)}
  .menu.open{display:flex}
  .menu a{padding:12px 8px;border-bottom:1px solid var(--line)}
  .burger{display:block;margin-inline-start:auto}
  .lang-sw{display:none}
  .menu-langs{display:flex;align-items:center;gap:10px;padding-top:12px;font-size:14px}
  .menu-langs .lang-opt{padding:6px 12px;border:1px solid var(--line);border-radius:8px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .topbar-in{gap:14px;font-size:12px;justify-content:center}
  .tb-mail{display:none}
  .wrap{padding:0 14px}
  .nav-in{padding:10px 14px;gap:12px}
  .logo-mark{width:38px;height:38px;font-size:15px;border-radius:7px}
  .logo-txt{font-size:15px}
  .logo-txt small{font-size:9px}
  .hero-in{padding:36px 0 32px;gap:24px}
  .hero-txt h1{font-size:25px}
  .hero-txt p{font-size:15px}
  .oem-badge{font-size:11.5px;padding:7px 14px;letter-spacing:.3px}
  .hero-btns .btn{flex:1;text-align:center;padding:12px 10px}
  .hero-hot{margin-top:22px}
  .hot-chip{max-width:100%}
  .section{padding:40px 0}
  .sec-head{margin-bottom:26px}
  .sec-head h2{font-size:22px}
  .about-txt h2{font-size:22px}
  .stat-grid b{font-size:26px}
  .stats{padding:28px 0}
  .pmain{height:300px;padding:14px}
  .pthumbs img{width:60px;height:60px}
  .pinfo h2{font-size:18px}
  .spec td{padding:8px 10px;font-size:13.5px}
  .spec td:first-child{width:42%}
  .page-head{padding:32px 0}
  .page-head h1{font-size:22px}
  .contact-info{padding:20px}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .footer{padding:34px 0 0}
  .zalo-float{padding:9px 6px 8px;font-size:10px}
  .zalo-float svg{width:22px;height:22px}
  .article{font-size:15.5px}
}

/* floating zalo chat button (left side) */
.zalo-float{position:fixed;left:0;top:50%;transform:translateY(-50%);z-index:999;display:flex;flex-direction:column;align-items:center;gap:4px;background:#0068FF;color:#fff;border-radius:0 12px 12px 0;padding:12px 8px 10px;font-size:11.5px;font-weight:800;letter-spacing:.5px;box-shadow:2px 0 12px rgba(0,104,255,.28);transition:.15s}
.zalo-float:hover{background:#0055cc;padding-right:13px}
.zalo-float svg{display:block}
[dir="rtl"] .zalo-float{left:auto;right:0;border-radius:12px 0 0 12px;box-shadow:-2px 0 12px rgba(0,104,255,.28)}