/* =========================================================
   HELLAMAX — B2B Wholesale Theme
   Palette: deep navy (trust) + orange (action)
   ========================================================= */
:root{
  --navy:#14315c;
  --navy-2:#1d4e89;
  --navy-3:#0e2444;
  --accent:#ff6a13;
  --accent-hover:#e85d0a;
  --bg:#f5f7fa;
  --surface:#ffffff;
  --ink:#1f2937;
  --muted:#64748b;
  --line:#e2e8f0;
  --green:#16a34a;
  --radius:14px;
  --shadow:0 10px 30px rgba(20,49,92,.08);
  --shadow-sm:0 4px 14px rgba(20,49,92,.06);
  --maxw:1180px;
  --header-h:68px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.muted{color:var(--muted)}
.center{text-align:center}

/* ---------- Top utility bar ---------- */
.topbar{background:var(--navy-3);color:#cdd9ec;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:38px;gap:14px;flex-wrap:wrap}
.topbar a{color:#cdd9ec}
.topbar a:hover{color:#fff}
.topbar .sep{opacity:.4}

/* ---------- Header / Nav ---------- */
.header{position:sticky;top:0;z-index:50;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:18px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:21px;letter-spacing:.5px;color:var(--navy)}
.brand .logo{width:38px;height:38px;border-radius:9px;background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;display:grid;place-items:center;font-size:18px;font-weight:900}
.brand small{display:block;font-size:10px;font-weight:600;color:var(--accent);letter-spacing:1.5px}
.nav{display:flex;align-items:center;gap:26px}
.nav a{font-weight:600;font-size:15px;color:var(--ink);position:relative;padding:6px 0}
.nav a:hover{color:var(--accent)}
.nav a.active{color:var(--accent)}
.nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--accent)}
.nav-cta{background:var(--accent);color:#fff!important;padding:9px 18px!important;border-radius:10px;font-weight:700}
.nav-cta:hover{background:var(--accent-hover)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--navy);border-radius:2px}
.mobile-nav{display:none;flex-direction:column;background:var(--surface);border-bottom:1px solid var(--line);padding:10px 22px 18px}
.mobile-nav a{padding:11px 0;border-bottom:1px solid var(--line);font-weight:600}
.mobile-nav a:last-child{border-bottom:none}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;font-size:15px;padding:13px 26px;border-radius:11px;cursor:pointer;border:2px solid transparent;transition:.18s;line-height:1}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2)}
.btn-outline{background:transparent;border-color:var(--navy);color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:#fff}
.btn-light{background:#fff;color:var(--navy);border-color:#fff}
.btn-light:hover{background:#eef3fb}
.btn-lg{padding:16px 34px;font-size:16px}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.hero{background:radial-gradient(1200px 500px at 80% -10%,rgba(29,78,137,.25),transparent),linear-gradient(160deg,var(--navy) 0%,var(--navy-3) 100%);color:#fff;padding:68px 0 76px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:46px 46px;mask:radial-gradient(circle at 70% 20%,#000,transparent 70%)}
.hero .container{position:relative;z-index:1}
.hero .eyebrow{display:inline-block;background:rgba(255,106,19,.18);color:#ffb98a;border:1px solid rgba(255,106,19,.4);padding:6px 14px;border-radius:30px;font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:18px}
.hero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.12;font-weight:850;letter-spacing:-.5px;max-width:18ch}
.hero h1 .hl{color:var(--accent)}
.hero .catline{font-size:clamp(15px,2vw,20px);font-weight:600;color:#bcd0ec;margin-top:16px;letter-spacing:.3px}
.hero .props{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.hero .props span{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:8px 15px;border-radius:30px;font-size:13.5px;font-weight:600;color:#dbe7f7}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero .trust-strip{display:flex;gap:26px;flex-wrap:wrap;margin-top:36px;color:#9fb6d6;font-size:13.5px}
.hero .trust-strip b{color:#fff;display:block;font-size:22px;font-weight:800}

/* ---------- Section helpers ---------- */
.section{padding:64px 0}
.section-sm{padding:44px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 40px}
.section-head .tag{color:var(--accent);font-weight:800;letter-spacing:1.5px;font-size:13px;text-transform:uppercase}
.section-head h2{font-size:clamp(26px,3.4vw,38px);color:var(--navy);margin:10px 0 12px;font-weight:820;letter-spacing:-.4px}
.section-head p{color:var(--muted);font-size:16px}
.bg-white{background:var(--surface)}
.bg-soft{background:#eef3fb}

/* ---------- Category grid ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:.18s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdbeb}
.cat-card .ico{width:52px;height:52px;border-radius:12px;background:var(--bg);display:grid;place-items:center;font-size:26px;margin-bottom:14px}
.cat-card h3{font-size:19px;color:var(--navy);margin-bottom:6px}
.cat-card p{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.cat-card .more{color:var(--accent);font-weight:700;font-size:14px}

/* ---------- Feature / value props ---------- */
.value-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.value-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px 14px;text-align:center;box-shadow:var(--shadow-sm)}
.value-item .v-ico{font-size:24px}
.value-item b{display:block;margin-top:8px;font-size:14px;color:var(--navy)}

/* ---------- Product / specs ---------- */
.product-hero{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.product-media{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.product-media .ph-img{aspect-ratio:4/3;background:linear-gradient(135deg,#eef3fb,#dfeafb);border-radius:10px;display:grid;place-items:center;color:var(--navy-2);font-weight:700;text-align:center;padding:20px}
.product-info h1{font-size:clamp(24px,3vw,34px);color:var(--navy);font-weight:830;letter-spacing:-.4px}
.product-info .brand-tag{display:inline-block;background:var(--bg);color:var(--navy-2);font-weight:700;font-size:13px;padding:5px 12px;border-radius:20px;margin:10px 0 16px}
.price-cta{background:var(--bg);border:1px dashed var(--accent);border-radius:12px;padding:16px 18px;margin:18px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.price-cta .label{font-size:13px;color:var(--muted)}
.price-cta .price{font-size:18px;font-weight:800;color:var(--navy)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin:6px 0 4px}
.spec-table{width:100%;border-collapse:collapse;margin-top:8px;font-size:14.5px}
.spec-table th,.spec-table td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line)}
.spec-table th{background:var(--bg);color:var(--navy);font-weight:700;width:42%}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}
.b2b-badge{display:inline-flex;align-items:center;gap:6px;background:#eafaf0;color:var(--green);font-weight:700;font-size:12.5px;padding:5px 11px;border-radius:20px}

/* ---------- Why HELLAMAX blocks ---------- */
.feature-row{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.feature{display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.feature .f-ico{flex:0 0 46px;width:46px;height:46px;border-radius:11px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:22px}
.feature h3{font-size:17px;color:var(--navy);margin-bottom:5px}
.feature p{font-size:14.5px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:var(--surface);overflow:hidden}
.faq-q{padding:16px 20px;font-weight:700;color:var(--navy);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-q .plus{color:var(--accent);font-size:22px;font-weight:800}
.faq-a{padding:0 20px 18px;color:var(--muted);font-size:14.5px;display:none}
.faq-item.open .faq-a{display:block}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat .n{font-size:38px;font-weight:850;color:var(--navy)}
.stat .l{color:var(--muted);font-size:14px;margin-top:4px}

/* ---------- CTA banner ---------- */
.cta-banner{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;border-radius:18px;padding:46px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta-banner h2{font-size:clamp(22px,2.6vw,30px);font-weight:820}
.cta-banner p{color:#bcd0ec;margin-top:6px}

/* ---------- Contact / form ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-weight:600;font-size:14px;color:var(--navy)}
.field input,.field select,.field textarea{font:inherit;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--navy-2);box-shadow:0 0 0 3px rgba(29,78,137,.12)}
.contact-info{background:var(--navy);color:#fff;border-radius:var(--radius);padding:30px}
.contact-info h3{margin-bottom:14px}
.contact-info .ci-row{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:15px}
.contact-info .ci-row:last-child{border-bottom:none}
.contact-info .ci-row b{color:#ffb98a;min-width:84px}

/* ---------- Floating action bar ---------- */
.float-bar{position:fixed;right:18px;bottom:18px;z-index:60;display:flex;flex-direction:column;gap:12px}
.fab{display:flex;align-items:center;gap:10px;background:var(--navy);color:#fff;padding:13px 18px;border-radius:50px;font-weight:700;box-shadow:var(--shadow);border:2px solid #fff;transition:.18s}
.fab:hover{transform:translateY(-2px)}
.fab.whatsapp{background:#25d366}
.fab.quote{background:var(--accent)}
.fab .fab-ico{font-size:20px}
.fab.wechat{background:#07c160}

/* ---------- WeChat QR modal (injected by main.js) ---------- */
.wc-modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:80;display:none;align-items:center;justify-content:center;padding:20px}
.wc-modal-backdrop.open{display:flex}
.wc-modal{background:#fff;border-radius:16px;padding:24px;max-width:340px;width:100%;box-shadow:0 20px 60px rgba(0,0,0,.4);position:relative;text-align:center}
.wc-modal h3{margin:0 0 8px;font-size:18px;color:var(--navy)}
.wc-modal p{margin:0 0 14px;font-size:13px;color:#666;line-height:1.5}
.wc-modal img{width:240px;height:240px;display:block;margin:0 auto;border-radius:8px;background:#f5f5f5;object-fit:contain}
.wc-modal .wc-close{position:absolute;top:10px;right:14px;background:none;border:0;font-size:26px;color:#888;cursor:pointer;line-height:1;padding:4px 8px}
.wc-modal .wc-close:hover{color:#333}
.wc-modal .wc-id{font-weight:700;color:var(--navy);margin-top:12px;font-size:14px}

/* ---------- Footer ---------- */
.footer{background:var(--navy-3);color:#aebfd8;padding:54px 0 26px;margin-top:30px}
.footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px}
.footer h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.4px}
.footer a{color:#aebfd8;display:block;padding:5px 0;font-size:14px}
.footer a:hover{color:#fff}
.footer .brand-f{font-size:22px;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer .brand-f .logo{width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--navy-2),var(--accent));display:grid;place-items:center;color:#fff;font-weight:900}
.footer p{font-size:14px;line-height:1.7}
.footer .bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:34px;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:#8499bb}
.footer .bottom a{display:inline;padding:0 8px}

/* ---------- Breadcrumb ---------- */
.crumb{font-size:13px;color:var(--muted);padding:16px 0;background:var(--surface);border-bottom:1px solid var(--line)}
.crumb a:hover{color:var(--accent)}
.crumb span{margin:0 8px;opacity:.5}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .value-grid{grid-template-columns:repeat(3,1fr)}
  .footer .cols{grid-template-columns:1fr 1fr}
  .product-hero{grid-template-columns:1fr;gap:28px}
  .feature-row{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .nav{display:none}
  .burger{display:flex}
  .grid-4,.grid-3{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer .cols{grid-template-columns:1fr}
  .cta-banner{padding:30px}
  .float-bar .fab span.txt{display:none}
  .float-bar .fab{padding:14px}
}
@media(max-width:460px){
  .grid-4,.grid-3{grid-template-columns:1fr}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .hero{padding:48px 0 56px}
}