/* ============================================
   QUANGINE TRADING — standalone trade sub-site
   Design: Deep Navy + Cyan (brand-matched to quangine.com)
   ============================================ */
:root{
  --bg-deep:#0A1628; --bg-mid:#0E1B2E; --bg-light:#1E3A5F;
  --bg-card:rgba(30,58,95,.35); --bg-card-hover:rgba(30,58,95,.55);
  --border-soft:rgba(255,255,255,.08); --border-mid:rgba(255,255,255,.15);
  --cyan:#00F5FF; --cyan-soft:rgba(0,245,255,.15);
  --blue:#4A5BFF; --amber:#FFB020; --amber-soft:rgba(255,176,32,.12);
  --gradient-cta:linear-gradient(135deg,#00F5FF 0%,#4A5BFF 100%);
  --text-1:#fff; --text-2:#D1D5DB; --text-3:#9CA3AF; --text-4:#6B7280;
  --shadow-card:0 8px 32px rgba(0,0,0,.25);
  --font-sans:'Inter','Noto Sans TC',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang TC','Microsoft JhengHei',sans-serif;
  --container:1180px; --header-h:68px;
  --ease:cubic-bezier(.4,0,.2,1);
  --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);background:var(--bg-deep);color:var(--text-2);line-height:1.65;font-size:16px;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* i18n 雙語切換 */
.lang-zh .i18n-en,.lang-en .i18n-zh{display:none!important}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,22,40,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-soft)}
.header-inner{display:flex;align-items:center;gap:26px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand img{height:34px;width:auto}
.brand-txt{font-weight:800;font-size:17px;color:var(--text-1);letter-spacing:.5px;white-space:nowrap}
.brand-txt em{font-style:normal;color:var(--cyan)}
.site-nav{display:flex;gap:22px;margin-left:auto}
.site-nav a{font-size:14px;color:var(--text-3);padding:6px 2px;border-bottom:2px solid transparent}
.site-nav a:hover{color:var(--text-1)}
.site-nav a.active{color:var(--cyan);border-bottom-color:var(--cyan)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.lang-toggle{border:1px solid var(--border-mid);border-radius:8px;padding:7px 12px;font-size:13px;color:var(--text-2)}
.lang-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.cart-btn{position:relative}
.cart-count{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;border-radius:10px;background:var(--gradient-cta);color:#04121f;font-size:12px;font-weight:700;padding:0 5px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:9px;font-size:14.5px;font-weight:600;transition:.22s var(--ease)}
.btn-cta{background:var(--gradient-cta);color:#04121f}
.btn-cta:hover{filter:brightness(1.1);transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--border-mid);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-lg{padding:14px 30px;font-size:15.5px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:default;transform:none}

/* ---------- hero ---------- */
.hero{padding:88px 0 64px;background:linear-gradient(180deg,#0A1628 0%,#0E1B2E 100%);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-160px;top:-160px;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(0,245,255,.12) 0%,transparent 65%);pointer-events:none}
.hero-kicker{font-size:13px;letter-spacing:2.5px;color:var(--cyan);font-weight:600;margin-bottom:18px}
.hero h1{font-size:46px;line-height:1.18;font-weight:800;color:var(--text-1);max-width:840px}
.hero h1 em{font-style:normal;background:var(--gradient-cta);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:20px;font-size:16.5px;color:var(--text-3);max-width:760px}
.hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:52px}
.hero-stats .stat{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:22px 16px;text-align:center}
.hero-stats b{display:block;font-size:30px;font-weight:800;background:var(--gradient-cta);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats span{font-size:12.5px;color:var(--text-3)}

/* ---------- sections ---------- */
.section{padding:76px 0}
.section-alt{background:var(--bg-mid)}
.sec-title{font-size:30px;font-weight:800;color:var(--text-1);text-align:center}
.sec-sub{text-align:center;color:var(--text-3);max-width:720px;margin:14px auto 0;font-size:15px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px}
.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:46px}
.card{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:30px 26px;transition:.25s var(--ease)}
.card:hover{transform:translateY(-4px);border-color:rgba(0,245,255,.4)}
.card-ico{width:52px;height:52px;border-radius:13px;background:var(--cyan-soft);border:1px solid rgba(0,245,255,.25);color:var(--cyan);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.card h3{font-size:17px;font-weight:700;color:var(--text-1);margin-bottom:10px}
.card p{font-size:13.5px;color:var(--text-3)}

.cat-card{display:flex;flex-direction:column;gap:12px;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:26px 22px;transition:.25s var(--ease)}
.cat-card:hover{transform:translateY(-4px);border-color:rgba(0,245,255,.4)}
.cat-card-amber:hover{border-color:rgba(255,176,32,.5)}
.cat-card h3{font-size:16px;font-weight:700;color:var(--text-1)}
.cat-card p{font-size:13px;color:var(--text-3);flex:1}
.badge{display:inline-flex;align-self:flex-start;padding:5px 12px;border-radius:999px;font-size:11.5px;font-weight:700;letter-spacing:.4px}
.badge-ok{background:rgba(0,245,255,.12);color:var(--cyan);border:1px solid rgba(0,245,255,.3)}
.badge-warn{background:var(--amber-soft);color:var(--amber);border:1px solid rgba(255,176,32,.35)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:46px}
.step{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:26px 22px}
.step b{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--gradient-cta);color:#04121f;align-items:center;justify-content:center;font-size:15px;margin-bottom:14px}
.step h4{font-size:15.5px;color:var(--text-1);margin-bottom:8px}
.step p{font-size:13px;color:var(--text-3)}

/* ---------- CTA band ---------- */
.cta-band{text-align:center}
.cta-inner h2{font-size:30px;color:var(--text-1);font-weight:800}
.cta-inner p{color:var(--text-3);margin:14px 0 28px}

/* ---------- page head ---------- */
.page-head{padding:64px 0 8px;background:linear-gradient(180deg,#0A1628 0%,#0E1B2E 100%)}
.page-head h1{font-size:36px;font-weight:800;color:var(--text-1)}
.page-head p{color:var(--text-3);margin-top:12px;max-width:720px}

/* ---------- catalog ---------- */
.toolbar{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin:34px 0 26px}
.chips{display:flex;gap:9px;flex-wrap:wrap}
.chip{border:1px solid var(--border-mid);border-radius:999px;padding:8px 16px;font-size:13px;color:var(--text-3);transition:.2s var(--ease)}
.chip:hover{color:var(--text-1);border-color:var(--cyan)}
.chip.active{background:var(--cyan-soft);border-color:var(--cyan);color:var(--cyan);font-weight:600}
.chip-warn.active{background:var(--amber-soft);border-color:var(--amber);color:var(--amber)}
.search-box{margin-left:auto;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:9px;padding:9px 14px;color:var(--text-1);font-size:14px;min-width:220px;outline:none}
.search-box:focus{border-color:var(--cyan)}
.search-box::placeholder{color:var(--text-4)}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.prod-card{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:24px 22px;display:flex;flex-direction:column;gap:12px;transition:.25s var(--ease)}
.prod-card:hover{border-color:rgba(0,245,255,.4);transform:translateY(-3px)}
.prod-card.is-controlled{border-color:rgba(255,176,32,.3)}
.prod-card.is-controlled:hover{border-color:rgba(255,176,32,.55)}
.prod-cat{font-size:11px;letter-spacing:1.2px;color:var(--text-4);text-transform:uppercase;font-weight:600}
.prod-card h3{font-size:16.5px;font-weight:700;color:var(--text-1);line-height:1.4}
.prod-specs{list-style:none;display:flex;flex-direction:column;gap:6px}
.prod-specs li{font-size:13px;color:var(--text-3);padding-left:16px;position:relative}
.prod-specs li::before{content:"▸";position:absolute;left:0;color:var(--cyan);font-size:11px;top:2px}
.prod-app{font-size:12.5px;color:var(--text-4)}
.prod-actions{margin-top:auto;display:flex;gap:10px;align-items:center;padding-top:8px;border-top:1px solid var(--border-soft)}
.prod-actions .btn{padding:8px 16px;font-size:13px}
.catalog-note{text-align:center;color:var(--text-4);font-size:13.5px;margin-top:34px}
.catalog-empty{text-align:center;padding:44px 20px;border:1px dashed var(--border-soft);border-radius:14px;margin-top:26px;background:rgba(255,255,255,.015)}
.catalog-empty .catalog-note{margin-top:0;font-size:14px;color:var(--text-3)}
.catalog-empty .catalog-note b{color:var(--amber)}
.catalog-hint{color:var(--text-4);font-size:13px;margin-top:8px;line-height:1.6}
.empty-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.empty-actions .btn{padding:10px 20px}

/* ---------- 分層目錄 v2 ---------- */
.toolbar-sub{margin-top:-8px;padding-top:0;align-items:center}
.chips-sm{display:flex;gap:7px;flex-wrap:wrap}
.chip-sm{border:1px solid var(--border-soft);border-radius:999px;padding:5px 12px;font-size:12px;color:var(--text-4);transition:.2s var(--ease)}
.chip-sm:hover{color:var(--text-1);border-color:var(--border-mid)}
.chip-sm.active{background:rgba(0,245,255,.1);border-color:rgba(0,245,255,.45);color:var(--cyan);font-weight:600}
.result-count{margin-left:auto;font-size:12.5px;color:var(--text-4)}

.domain-section{padding:26px 0 34px;border-top:1px solid var(--border-soft)}
.domain-section:first-of-type{border-top:none;padding-top:8px}
.domain-head{margin-bottom:22px}
.domain-head h2{display:flex;align-items:center;gap:12px;font-size:23px;font-weight:800;color:var(--text-1)}
.domain-count{display:inline-flex;align-items:center;justify-content:center;min-width:26px;height:22px;padding:0 7px;border-radius:11px;background:var(--cyan-soft);border:1px solid rgba(0,245,255,.3);color:var(--cyan);font-size:12px;font-weight:700}
.domain-head p{margin-top:8px;font-size:13.5px;color:var(--text-3);max-width:760px}
.domain-controlled .domain-head h2{color:var(--amber)}
.domain-controlled .domain-count{background:var(--amber-soft);border-color:rgba(255,176,32,.35);color:var(--amber)}

.subcat{margin-bottom:26px}
.subcat h3{font-size:13px;letter-spacing:1.4px;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:14px;padding-left:12px;border-left:3px solid rgba(0,245,255,.5)}
.domain-controlled .subcat h3{color:var(--amber);border-left-color:rgba(255,176,32,.55)}

.prod-card .prod-top{margin-bottom:2px}
.prod-card h4{font-size:16px;font-weight:700;color:var(--text-1);line-height:1.4;margin:6px 0 2px}
.prod-card.is-tier2{border-color:rgba(255,176,32,.22)}
.prod-card.is-tier2:hover{border-color:rgba(255,176,32,.5)}
.badge-danger{background:rgba(255,106,106,.12);color:#ff8f8f;border:1px solid rgba(255,106,106,.35)}
.prod-tags{display:flex;gap:6px;flex-wrap:wrap}
.tag-mini{font-size:11px;padding:3px 9px;border-radius:6px;background:rgba(255,255,255,.06);border:1px solid var(--border-soft);color:var(--text-3);letter-spacing:.3px}

/* ---------- cart drawer ---------- */
.cart-drawer{position:fixed;top:0;right:-420px;width:400px;max-width:92vw;height:100vh;background:var(--bg-mid);border-left:1px solid var(--border-mid);z-index:200;transition:right .3s var(--ease);display:flex;flex-direction:column}
.cart-drawer.open{right:0}
.cart-mask{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:190;opacity:0;pointer-events:none;transition:.3s var(--ease)}
.cart-mask.show{opacity:1;pointer-events:auto}
.cart-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--border-soft)}
.cart-head h3{color:var(--text-1);font-size:17px}
.cart-close{font-size:18px;color:var(--text-3);padding:4px 8px}
.cart-close:hover{color:var(--cyan)}
.cart-body{flex:1;overflow-y:auto;padding:16px 22px}
.cart-empty{color:var(--text-4);font-size:14px;text-align:center;padding:40px 0}
.cart-item{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px dashed var(--border-soft)}
.cart-item span{font-size:13.5px;color:var(--text-2)}
.cart-item button{color:var(--text-4);font-size:15px}
.cart-item button:hover{color:#ff7a7a}
.cart-foot{padding:18px 22px;border-top:1px solid var(--border-soft)}

/* ---------- rfq form ---------- */
.rfq-form{max-width:760px;margin:40px auto 0;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius);padding:34px 32px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px}
.rfq-form label{display:flex;flex-direction:column;gap:7px;font-size:13.5px;color:var(--text-2);margin-bottom:16px}
.rfq-form label.full{grid-column:auto}
.rfq-form input[type=text],.rfq-form input[type=email],.rfq-form textarea{background:rgba(10,22,40,.6);border:1px solid var(--border-mid);border-radius:9px;padding:12px 14px;color:var(--text-1);font-size:14px;font-family:inherit;outline:none;width:100%}
.rfq-form input:focus,.rfq-form textarea:focus{border-color:var(--cyan)}
.rfq-form textarea{resize:vertical}
.rfq-form .check{flex-direction:row;align-items:flex-start;gap:10px;font-size:12.5px;color:var(--text-3);cursor:pointer}
.rfq-form .check input{margin-top:3px;accent-color:#00c8ff}
.hp-field{position:absolute;left:-9999px;opacity:0;height:0;width:0}
.form-msg{margin-top:16px;font-size:14px;min-height:20px}
.form-msg.ok{color:#39e6a3}
.form-msg.err{color:#ff8080}

/* ---------- compliance ---------- */
.compliance-body{max-width:820px}
.compliance-body h2{font-size:19px;color:var(--cyan);margin:34px 0 12px;font-weight:700}
.compliance-body p{color:var(--text-3);font-size:14.5px}
.compliance-cta{display:flex;gap:14px;margin-top:40px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:#081220;border-top:1px solid var(--border-soft);padding:56px 0 30px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;margin-bottom:34px}
.footer-grid h5{color:var(--text-1);font-size:14px;letter-spacing:1px;margin-bottom:14px;font-weight:700}
.footer-grid a{display:block;font-size:13.5px;color:var(--text-3);padding:4px 0}
.footer-grid a:hover{color:var(--cyan)}
.footer-desc{font-size:13.5px;color:var(--text-3);margin-bottom:10px}
.footer-link a{color:var(--cyan);font-size:14px;font-weight:600}
.footer-disclaimer{border:1px solid var(--border-soft);border-radius:12px;padding:18px 20px;background:rgba(255,176,32,.04)}
.footer-disclaimer p{font-size:12px;color:var(--text-4);line-height:1.7}
.footer-copy{text-align:center;color:var(--text-4);font-size:12.5px;margin-top:26px}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid-3,.grid-4,.prod-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .site-nav{display:none}
}
@media (max-width:640px){
  .hero h1{font-size:31px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .grid-3,.grid-4,.prod-grid,.steps{grid-template-columns:1fr}
  .domain-head h2{font-size:19px}
  .toolbar-sub{flex-direction:column;align-items:flex-start}
  .result-count{margin-left:0}
  .form-grid{grid-template-columns:1fr}
  .search-box{margin-left:0;width:100%}
  .footer-grid{grid-template-columns:1fr}
  .header-inner{gap:12px}
  .brand-txt{display:none}
}