/* ============================================================
   ONEWAY 萬威機油 — B2B 新站原型  /  Design System
   作者：Claude Code（原型示範）
   調色：石墨黑 (ink) + 機油金 (gold) + 賽事紅 (red, 點綴)
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  --ink:#0c100f;
  --ink-soft:#131b18;
  --ink-line:#23302b;
  --gold:#f4a900;
  --gold-deep:#d99300;
  --gold-soft:#fff6e2;
  --red:#e23b2e;
  --paper:#ffffff;
  --bg:#f5f7f6;
  --bg-alt:#eef2f0;
  --border:#e2e8e4;
  --text:#14201b;
  --muted:#5d6a64;
  --text-invert:#f2f6f4;
  --muted-invert:#9db0a8;

  --r-sm:10px;
  --r:16px;
  --r-lg:24px;
  --r-pill:999px;

  --shadow-sm:0 1px 2px rgba(12,16,15,.06),0 2px 8px rgba(12,16,15,.05);
  --shadow:0 10px 30px rgba(12,16,15,.10);
  --shadow-lg:0 24px 60px rgba(12,16,15,.16);

  --container:1200px;
  --gut:clamp(20px,5vw,40px);

  --font-sans:"Noto Sans TC","Segoe UI",system-ui,-apple-system,"Microsoft JhengHei",sans-serif;
  --font-display:"Sora","Noto Sans TC","Segoe UI",system-ui,sans-serif;

  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
*{margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
ul{list-style:none}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.15;font-weight:800;letter-spacing:-.01em}

/* ---------- Layout helpers ---------- */
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gut)}
.section{padding-block:clamp(56px,9vw,110px)}
.section--tight{padding-block:clamp(40px,6vw,72px)}
.section.dark{background:var(--ink);color:var(--text-invert)}
.section.alt{background:var(--bg-alt)}
.section.paper{background:var(--paper)}
.center{text-align:center}
.grid{display:grid;gap:24px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-display);font-weight:700;font-size:.78rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--gold-deep);
}
.dark .eyebrow{color:var(--gold)}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--gold);border-radius:2px}
.section-head{max-width:720px;margin-bottom:clamp(32px,5vw,56px)}
.section-head.center{margin-inline:auto}
.section-head h2{font-size:clamp(1.7rem,3.6vw,2.7rem);margin:14px 0 14px}
.section-head p{color:var(--muted);font-size:1.05rem}
.dark .section-head p{color:var(--muted-invert)}
.lead{font-size:1.12rem;color:var(--muted)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-family:var(--font-display);font-weight:700;font-size:.98rem;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .2s,color .2s;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--gold);color:#1a1205;box-shadow:0 8px 20px rgba(244,169,0,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(244,169,0,.45)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{background:transparent;border:1.5px solid var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--ink);background:var(--ink);color:#fff;transform:translateY(-2px)}
.dark .btn-ghost{border-color:rgba(255,255,255,.25);color:#fff}
.dark .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{padding:10px 18px;font-size:.88rem}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-family:var(--font-display);font-weight:700;color:var(--gold-deep)}
.link-arrow svg{width:16px;height:16px;transition:transform .25s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}
.dark .link-arrow{color:var(--gold)}

/* ---------- Badges & pills ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--r-pill);
  font-size:.74rem;font-weight:700;font-family:var(--font-display);
  letter-spacing:.02em;background:var(--gold-soft);color:var(--gold-deep);
}
.badge.spec{background:#eef3f0;color:#33473e}
.badge.cert{background:#0c100f;color:var(--gold)}
.tag{font-size:.74rem;color:var(--muted);border:1px solid var(--border);padding:3px 9px;border-radius:var(--r-pill)}

/* ============================================================
   HEADER / NAV  (JS-injected chrome)
   ============================================================ */
.topbar{background:var(--ink);color:var(--muted-invert);font-size:.82rem}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.topbar a{color:var(--muted-invert);transition:color .2s;display:inline-flex;align-items:center;gap:5px}
.topbar a:hover{color:var(--gold)}
.topbar svg{width:13px;height:13px;flex-shrink:0}
.topbar .tb-left{display:flex;gap:20px;align-items:center}
.topbar .tb-right{display:flex;gap:14px;align-items:center}
.topbar .sep{opacity:.3}
.lang{display:flex;gap:8px;align-items:center}
.lang a{padding:2px 7px;border-radius:6px}
.lang a.active{background:var(--gold);color:var(--ink);font-weight:700}

.site-header{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);transition:box-shadow .3s,background .3s}
.site-header.scrolled{box-shadow:var(--shadow-sm);background:rgba(255,255,255,.95)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand .mark{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--ink),#26332d);
  display:grid;place-items:center;position:relative;overflow:hidden;
}
.brand .mark span{font-family:var(--font-display);font-weight:800;color:var(--gold);font-size:1.25rem;line-height:1}
.brand .mark::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(244,169,0,.35),transparent 60%)}
.brand b{font-family:var(--font-display);font-weight:800;font-size:1.18rem;letter-spacing:.02em}
.brand small{display:block;font-size:.7rem;color:var(--muted);font-weight:500;letter-spacing:.18em}

.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;padding:10px 14px;border-radius:10px;font-weight:500;font-size:.96rem;
  color:var(--text);transition:color .2s,background .2s;
}
.nav-links a:hover{background:var(--bg-alt)}
.nav-links a.active{color:var(--gold-deep);font-weight:700}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--gold);border-radius:2px}

.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.cart-btn{position:relative;display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:var(--r-pill);border:1.5px solid var(--border);font-weight:700;font-family:var(--font-display);font-size:.9rem;transition:border-color .2s,background .2s}
.cart-btn:hover{border-color:var(--ink)}
.cart-btn svg{width:18px;height:18px}
.cart-count{min-width:20px;height:20px;padding:0 5px;border-radius:var(--r-pill);background:var(--gold);color:var(--ink);font-size:.74rem;font-weight:800;display:grid;place-items:center}
.cart-count:empty,.cart-count[data-count="0"]{display:none}

.hamburger{display:none;width:46px;height:46px;border-radius:12px;border:1.5px solid var(--border);place-items:center}
.hamburger svg{width:22px;height:22px}

/* mobile drawer */
.mobile-menu{position:fixed;inset:0;z-index:300;background:rgba(12,16,15,.5);opacity:0;visibility:hidden;transition:opacity .3s}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-panel{position:absolute;top:0;right:0;height:100%;width:min(86vw,360px);background:var(--paper);transform:translateX(100%);transition:transform .35s var(--ease);display:flex;flex-direction:column;padding:24px}
.mobile-menu.open .mobile-panel{transform:none}
.mobile-panel .mm-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.mobile-panel a{padding:14px 6px;border-bottom:1px solid var(--border);font-family:var(--font-display);font-weight:600;font-size:1.05rem;display:flex;justify-content:space-between;align-items:center}
.mobile-panel a.active{color:var(--gold-deep)}
.mobile-panel a svg{width:20px;height:20px;flex-shrink:0;color:var(--muted)}
.mobile-panel a.active svg{color:var(--gold)}
.mm-close{width:42px;height:42px;border-radius:10px;border:1.5px solid var(--border);display:grid;place-items:center}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;color:var(--text-invert);background:var(--ink);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(115deg,rgba(8,11,10,.96) 0%,rgba(8,11,10,.82) 42%,rgba(8,11,10,.45) 100%),
    url("https://images.unsplash.com/photo-1486262715619-67b85e0b08d3?auto=format&fit=crop&w=1600&q=70");
  background-size:cover;background-position:center;
}
.hero::after{content:"";position:absolute;right:-12%;top:-25%;width:55%;height:150%;background:radial-gradient(circle,rgba(244,169,0,.16),transparent 62%);pointer-events:none}
.hero .container{position:relative;z-index:2;padding-block:clamp(70px,11vw,140px)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.1rem,5.2vw,4rem);line-height:1.05}
.hero h1 .hl{color:var(--gold)}
.hero p.sub{margin:22px 0 30px;font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--muted-invert);max-width:36ch}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero .btn-ghost{background:rgba(8,11,10,.45);backdrop-filter:blur(3px)}
.hero .btn-ghost,.page-hero .btn-ghost,.divider-cta .btn-ghost{color:#fff;border-color:rgba(255,255,255,.45)}
.hero .btn-ghost:hover,.page-hero .btn-ghost:hover,.divider-cta .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.hero-trust{margin-top:36px;display:flex;gap:26px;flex-wrap:wrap;align-items:center;color:var(--muted-invert);font-size:.86rem}
.hero-trust b{color:#fff;font-family:var(--font-display)}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-lg);padding:28px;backdrop-filter:blur(6px)}
.hero-card h3{font-size:1.05rem;color:#fff;margin-bottom:6px}
.hero-card .of-row{display:grid;gap:12px;margin-top:18px}
.hero-card label{font-size:.78rem;color:var(--muted-invert);display:block;margin-bottom:6px;font-weight:600}
.hero-card select{width:100%;padding:13px 14px;border-radius:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%23f4a900' stroke-width='2'%3E%3Cpath d='M3 5l4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.hero-card select option{color:#14201b}

/* ============================================================
   B2B ENTRY CARDS
   ============================================================ */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:-70px;position:relative;z-index:5}
.entry-card{
  background:var(--paper);border-radius:var(--r-lg);padding:32px 28px;
  box-shadow:var(--shadow);border:1px solid var(--border);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
  position:relative;overflow:hidden;
}
.entry-card::before{content:"";position:absolute;left:0;top:0;height:4px;width:100%;background:linear-gradient(90deg,var(--gold),var(--gold-deep));transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.entry-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.entry-card:hover::before{transform:scaleX(1)}
.entry-card .ico{width:54px;height:54px;border-radius:14px;background:var(--gold-soft);color:var(--gold-deep);display:grid;place-items:center;margin-bottom:18px}
.entry-card .ico svg{width:28px;height:28px}
.entry-card h3{font-size:1.25rem;margin-bottom:10px}
.entry-card p{color:var(--muted);font-size:.96rem;margin-bottom:18px}

/* ============================================================
   STATS
   ============================================================ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{padding:8px 4px}
.stat .num{font-family:var(--font-display);font-weight:800;font-size:clamp(2rem,4.5vw,3.2rem);line-height:1;color:var(--gold)}
.stat .lbl{margin-top:10px;color:var(--muted-invert);font-size:.92rem}
.dark .stat .lbl{color:var(--muted-invert)}

/* ============================================================
   CATEGORY GRID
   ============================================================ */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat{
  position:relative;border-radius:var(--r);overflow:hidden;min-height:210px;
  display:flex;flex-direction:column;justify-content:flex-end;padding:24px;color:#fff;
  background:var(--ink-soft);isolation:isolate;
}
.cat::before{content:"";position:absolute;inset:0;z-index:-1;background-size:cover;background-position:center;transition:transform .5s var(--ease)}
.cat::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(10,13,12,.15),rgba(10,13,12,.88))}
.cat:hover::before{transform:scale(1.07)}
.cat h3{font-size:1.2rem;margin-bottom:4px}
.cat p{font-size:.84rem;color:rgba(255,255,255,.8)}
.cat .badge{position:absolute;top:16px;left:16px}
.cat-car::before{background-image:url("https://images.unsplash.com/photo-1492144534655-ae79c964c9d7?auto=format&fit=crop&w=800&q=60")}
.cat-moto::before{background-image:url("https://images.unsplash.com/photo-1558981403-c5f9899a28bc?auto=format&fit=crop&w=800&q=60")}
.cat-heavy::before{background-image:url("https://images.unsplash.com/photo-1581092160562-40aa08e78837?auto=format&fit=crop&w=800&q=60")}
.cat-industrial::before{background-image:url("https://images.unsplash.com/photo-1567789884554-0b844b597180?auto=format&fit=crop&w=800&q=60")}
.cat-trans::before{background-image:url("https://images.unsplash.com/photo-1449965408869-eaa3f722e40d?auto=format&fit=crop&w=800&q=60")}
.cat-acc::before{background-image:url("https://images.unsplash.com/photo-1530046339160-ce3e530c7d2f?auto=format&fit=crop&w=800&q=60")}

/* ============================================================
   PRODUCT CARDS  (center + featured)
   ============================================================ */
.toolbar{display:flex;gap:16px;flex-wrap:wrap;align-items:center;justify-content:space-between;margin-bottom:26px}
.filters{display:flex;gap:10px;flex-wrap:wrap}
.filters select,.searchbox input{padding:11px 14px;border-radius:var(--r-pill);border:1.5px solid var(--border);background:var(--paper);font-size:.9rem;min-width:140px}
.searchbox{position:relative}
.searchbox input{padding-left:38px;min-width:220px}
.searchbox svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--muted)}
.result-count{font-size:.88rem;color:var(--muted)}

.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pcard{
  background:var(--paper);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .2s;
}
.pcard:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d4ddd7}
.pcard .ptop{position:relative;height:160px;background:linear-gradient(135deg,#1a2420,#2c3a33);display:grid;place-items:center;overflow:hidden}
.pcard .ptop::after{content:"";position:absolute;width:130px;height:130px;border-radius:50%;background:radial-gradient(circle,rgba(244,169,0,.25),transparent 70%);top:-30px;right:-20px}
.pcan{width:62px;height:104px;border-radius:8px 8px 6px 6px;position:relative;box-shadow:0 10px 22px rgba(0,0,0,.35)}
.pcan::before{content:"";position:absolute;top:-9px;left:50%;transform:translateX(-50%);width:20px;height:11px;background:#222;border-radius:3px}
.pcan .lab{position:absolute;inset:18px 6px 10px;background:rgba(255,255,255,.92);border-radius:4px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px}
.pcan .lab i{font-style:normal;font-family:var(--font-display);font-weight:800;font-size:.52rem;color:var(--ink);letter-spacing:.04em}
.pcan .lab b{font-family:var(--font-display);font-size:.6rem;color:var(--gold-deep)}
.pcard .pbody{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.pcard .pcat{font-size:.74rem;color:var(--muted);font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.pcard h3{font-size:1.08rem;line-height:1.3}
.pcard .visc{font-family:var(--font-display);font-weight:800;color:var(--gold-deep);font-size:.95rem}
.pcard .specs{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}
.pcard .pdesc{font-size:.86rem;color:var(--muted);flex:1}
.pcard .ppack{font-size:.78rem;color:var(--muted);display:flex;align-items:center;gap:6px}
.pcard .pactions{display:flex;gap:8px;margin-top:6px;flex-wrap:wrap}
.pcard .doc-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:10px;border:1.5px solid var(--border);font-size:.8rem;font-weight:700;font-family:var(--font-display);transition:border-color .2s,background .2s}
.pcard .doc-btn:hover{border-color:var(--ink);background:var(--bg-alt)}
.pcard .doc-btn.tds{color:#1f6f5c}
.pcard .doc-btn svg{width:15px;height:15px}
.pcard .add-rfq{margin-top:8px}

/* ============================================================
   STEPS (OEM/ODM process)
   ============================================================ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.step{position:relative;padding:28px 22px;border-radius:var(--r);background:var(--paper);border:1px solid var(--border)}
.dark .step{background:var(--ink-soft);border-color:var(--ink-line)}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--font-display);font-weight:800;font-size:2.2rem;color:var(--gold);opacity:.9;display:block;margin-bottom:12px}
.step h3{font-size:1.1rem;margin-bottom:8px}
.step p{font-size:.9rem;color:var(--muted)}
.dark .step p{color:var(--muted-invert)}

/* feature list */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature{display:flex;gap:16px;align-items:flex-start}
.feature .fico{width:48px;height:48px;border-radius:12px;background:var(--gold-soft);color:var(--gold-deep);display:grid;place-items:center;flex-shrink:0}
.dark .feature .fico{background:rgba(244,169,0,.14);color:var(--gold)}
.feature .fico svg{width:24px;height:24px}
.feature h3{font-size:1.05rem;margin-bottom:5px}
.feature p{font-size:.9rem;color:var(--muted)}
.dark .feature p{color:var(--muted-invert)}

/* checklist */
.checklist{display:grid;gap:14px}
.checklist li{display:flex;gap:12px;align-items:flex-start}
.checklist .ck{width:24px;height:24px;border-radius:50%;background:var(--gold);color:var(--ink);display:grid;place-items:center;flex-shrink:0;margin-top:2px}
.checklist .ck svg{width:14px;height:14px}

/* split media */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px);align-items:center}
.split .media{border-radius:var(--r-lg);overflow:hidden;min-height:360px;background-size:cover;background-position:center;box-shadow:var(--shadow)}

/* solutions tabs / audience cards */
.aud-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.aud{display:flex;gap:20px;padding:28px;border-radius:var(--r);background:var(--paper);border:1px solid var(--border);transition:transform .25s var(--ease),box-shadow .25s}
.aud:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.aud .aud-ico{width:56px;height:56px;border-radius:14px;background:var(--ink);color:var(--gold);display:grid;place-items:center;flex-shrink:0}
.aud .aud-ico svg{width:28px;height:28px}
.aud h3{font-size:1.18rem;margin-bottom:6px}
.aud p{font-size:.92rem;color:var(--muted);margin-bottom:10px}

/* cert logos */
.cert-row{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;align-items:center}
.cert-chip{background:var(--paper);border:1px solid var(--border);border-radius:var(--r);padding:22px 16px;text-align:center;transition:transform .25s,box-shadow .25s}
.cert-chip:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.cert-chip b{display:block;font-family:var(--font-display);font-weight:800;font-size:1.25rem;color:var(--ink)}
.cert-chip span{font-size:.78rem;color:var(--muted)}

/* export map / locations */
.loc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.loc{padding:24px;border-radius:var(--r);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1)}
.loc .flag{font-size:1.6rem}
.loc h3{font-size:1.05rem;margin:10px 0 6px}
.loc p{font-size:.84rem;color:var(--muted-invert)}

/* ============================================================
   FORMS
   ============================================================ */
.form-card{background:var(--paper);border:1px solid var(--border);border-radius:var(--r-lg);padding:clamp(26px,4vw,44px);box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:7px}
.field label .req{color:var(--red)}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:12px;border:1.5px solid var(--border);
  background:var(--bg);transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 4px rgba(244,169,0,.15);background:#fff}
.field textarea{min-height:120px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-note{font-size:.82rem;color:var(--muted);margin-top:4px}
.rfq-list{display:grid;gap:10px;margin-bottom:18px}
.rfq-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:12px;background:var(--bg)}
.rfq-item .ri-name{font-weight:600;font-size:.92rem}
.rfq-item .ri-meta{font-size:.78rem;color:var(--muted)}
.rfq-item .ri-del{width:30px;height:30px;border-radius:8px;border:1px solid var(--border);display:grid;place-items:center;color:var(--muted)}
.rfq-item .ri-del:hover{border-color:var(--red);color:var(--red)}
.rfq-empty{padding:24px;text-align:center;color:var(--muted);border:1.5px dashed var(--border);border-radius:12px}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{background:var(--ink);color:var(--muted-invert);padding-top:clamp(50px,7vw,80px)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.site-footer .brand b{color:#fff}
.site-footer .brand small{color:var(--muted-invert)}
.footer-about p{margin-top:16px;font-size:.9rem;line-height:1.8}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{width:40px;height:40px;border-radius:10px;border:1px solid var(--ink-line);display:grid;place-items:center;transition:background .2s,color .2s,border-color .2s}
.footer-social a:hover{background:var(--gold);color:var(--ink);border-color:var(--gold)}
.footer-social svg{width:18px;height:18px}
.footer-col h4{color:#fff;font-size:.95rem;margin-bottom:16px;font-family:var(--font-display)}
.footer-col a,.footer-col p{display:block;font-size:.9rem;padding:5px 0;transition:color .2s}
.footer-col a:hover{color:var(--gold)}
.footer-contact .fc-item{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;font-size:.9rem}
.footer-contact svg{width:18px;height:18px;color:var(--gold);flex-shrink:0;margin-top:3px}
.footer-bottom{border-top:1px solid var(--ink-line);padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:.82rem}
.proto-flag{background:rgba(244,169,0,.14);color:var(--gold);border:1px solid rgba(244,169,0,.3);padding:5px 12px;border-radius:var(--r-pill);font-size:.78rem;font-weight:600}

/* ============================================================
   TOAST
   ============================================================ */
.toast-wrap{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:500;display:flex;flex-direction:column;gap:10px;align-items:center;pointer-events:none}
.toast{background:var(--ink);color:#fff;padding:13px 20px;border-radius:var(--r-pill);box-shadow:var(--shadow-lg);font-size:.9rem;font-weight:600;display:flex;align-items:center;gap:10px;opacity:0;transform:translateY(20px);transition:opacity .3s,transform .3s;max-width:90vw}
.toast.show{opacity:1;transform:none}
.toast svg{width:18px;height:18px;color:var(--gold);flex-shrink:0}

/* page hero (inner pages) */
.page-hero{background:var(--ink);color:#fff;padding-block:clamp(60px,9vw,110px);position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-10%;top:-40%;width:50%;height:180%;background:radial-gradient(circle,rgba(244,169,0,.14),transparent 60%)}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:.84rem;color:var(--muted-invert);margin-bottom:14px}
.crumb a:hover{color:var(--gold)}
.page-hero h1{font-size:clamp(1.9rem,4.4vw,3.1rem);max-width:18ch}
.page-hero p{margin-top:16px;color:var(--muted-invert);max-width:54ch;font-size:1.08rem}

/* reveal animation */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* misc */
.divider-cta{background:linear-gradient(120deg,var(--ink),#1c2a24);color:#fff;border-radius:var(--r-lg);padding:clamp(36px,5vw,60px);display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden}
.divider-cta::after{content:"";position:absolute;right:-5%;top:-50%;width:40%;height:200%;background:radial-gradient(circle,rgba(244,169,0,.2),transparent 60%)}
.divider-cta h2{font-size:clamp(1.5rem,3vw,2.2rem);max-width:20ch;position:relative;z-index:2}
.divider-cta .dc-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-card{max-width:520px}
  .entry-grid,.cat-grid,.product-grid,.feature-grid,.steps,.cert-row{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:30px 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .split{grid-template-columns:1fr}
  .aud-grid{grid-template-columns:1fr}
  .loc-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
  .nav-links,.nav-cta .btn,.cart-btn span{display:none}
  .hamburger{display:grid}
  .topbar .hide-sm{display:none}
  .topbar .container{justify-content:space-between}
  .topbar .sep{display:none}
  .entry-grid{grid-template-columns:1fr;margin-top:-40px}
  .cat-grid,.product-grid,.feature-grid,.steps,.cert-row,.loc-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .divider-cta{flex-direction:column;align-items:flex-start}
  .toolbar{flex-direction:column;align-items:stretch}
  .filters{justify-content:stretch}
  .filters select{flex:1}
}
@media(min-width:681px){.cart-btn .cart-count.float{position:absolute;top:-6px;right:-6px}}

/* keep cart count visible on mobile inside hamburger area */
@media(max-width:680px){.nav-cta{gap:6px}.nav-cta .cart-btn{padding:10px}}