/* Hexin Machinery EN site — Apple-style design system
   Flat, minimal, premium. No gradients, no heavy shadows. */
:root{
  --blue:#0071e3; --blue-hover:#0077ed;
  --bg:#ffffff; --bg-soft:#f5f5f7;
  --text:#1d1d1f; --muted:#6e6e73; --line:#d2d2d7;
  --radius:18px; --radius-sm:12px;
  --shadow:0 4px 16px rgba(0,0,0,.06);
  --shadow-hover:0 12px 32px rgba(0,0,0,.10);
  --max:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display",Inter,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;color:var(--text);letter-spacing:-.02em;font-weight:700}
p{margin:0 0 1em}

/* ---------- top bar (kept in DOM, visually hidden) ---------- */
.topbar{display:none}

/* ---------- icons (Lucide, inline SVG) ---------- */
.ico{display:inline-flex;flex:none}
.ico svg{width:1em;height:1em;display:block}
.btn .ico{font-size:1.15em}
.nav-toggle{display:none;background:none;border:0;color:var(--text);cursor:pointer;margin-left:auto;padding:8px;border-radius:8px}
.nav-toggle .ico{font-size:24px}
.nav-toggle .i-x{display:none}
.nav-toggle.active .i-x{display:inline-flex}
.nav-toggle.active .i-menu{display:none}
.nav-toggle:active{transform:scale(.94)}
.fc-ico .ico{font-size:26px;color:var(--blue)}
.ci .ico{font-size:20px}
.ck .ico{font-size:14px}
.whatsapp-float .ico{font-size:26px}
.foot-grid li{display:flex;align-items:center;gap:10px}
.foot-grid li .ico{font-size:15px;color:var(--muted)}

/* ---------- motion: micro-interactions ---------- */
.btn{transition:background .2s var(--ease),transform .15s var(--ease),box-shadow .2s var(--ease)}
.btn:active{transform:scale(.96)}
.main-nav a{transition:color .18s var(--ease),background .18s var(--ease)}
.prod-card,.news-card{transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.prod-card:hover,.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.feature-card,.step{transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.feature-card:hover,.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.pc-img img,.nc-img img{transition:transform .35s var(--ease)}
.prod-card:hover .pc-img img,.news-card:hover .nc-img img{transform:scale(1.03)}
.gal-grid img{transition:transform .35s var(--ease)}
.gal-grid img:hover{transform:scale(1.03)}
.whatsapp-float{transition:transform .18s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease)}
.whatsapp-float:hover{transform:scale(1.06)}
.whatsapp-float:active{transform:scale(.94)}
.foot-grid a{transition:color .18s var(--ease)}
.crumbs a,.pc-link{transition:color .18s var(--ease)}

/* ---------- motion: scroll reveal (fade-up, once) ---------- */
.rv{opacity:0;transform:translateY(16px);transition:opacity .38s var(--ease),transform .38s var(--ease);transition-delay:var(--d,0ms)}
.rv.in{opacity:1;transform:translateY(0)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.72);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--text);letter-spacing:-.01em}
.brand img{height:38px;width:auto}
.brand small{display:block;font-size:10px;font-weight:600;color:var(--muted);letter-spacing:.14em}
.main-nav{display:flex;gap:4px;margin-left:auto}
.main-nav a{padding:8px 14px;border-radius:8px;font-weight:500;font-size:14px;color:#424245}
.main-nav a:hover{color:#000}
.main-nav a.active{color:var(--blue)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:980px;font-weight:600;font-size:16px;border:0;cursor:pointer;text-align:center}
.btn-orange{background:var(--blue);color:#fff}
.btn-orange:hover{background:var(--blue-hover)}
.btn-navy{background:var(--text);color:#fff}
.btn-navy:hover{background:#000}
.btn-outline{background:transparent;color:var(--blue);border:1px solid var(--blue)}
.btn-outline:hover{background:rgba(0,113,227,.08)}
.btn-whatsapp{background:#25d366;color:#fff}
.btn-whatsapp:hover{background:#1fb857}
.header-cta{margin-left:8px;white-space:nowrap;padding:9px 20px;font-size:14px}

/* ---------- hero ---------- */
.hero{background:var(--bg-soft);overflow:hidden}
.hero .container{grid-template-columns:1fr;max-width:980px;text-align:center;padding:104px 24px 88px;display:grid;gap:0;align-items:center}
.hero-eyebrow{display:inline-block;color:var(--blue);font-size:14px;font-weight:700;letter-spacing:.1em;margin-bottom:20px}
.hero h1{font-size:clamp(40px,6vw,68px);font-weight:700;letter-spacing:-.025em;margin-bottom:18px}
.hero h1 .hl{color:var(--blue)}
.hero p.lead{color:var(--muted);font-size:21px;line-height:1.5;max-width:640px;margin:0 auto 34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.hero-media{max-width:880px;margin:56px auto 0}
.hero-media img{border-radius:var(--radius);width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-badges{display:flex;gap:44px;margin-top:44px;flex-wrap:wrap;justify-content:center}
.hero-badges .hb b{display:block;font-size:30px;font-weight:700;letter-spacing:-.02em}
.hero-badges .hb span{font-size:14px;color:var(--muted)}

/* feature cards */
.overlap{margin-top:0;position:relative;z-index:5;background:var(--bg)}
.overlap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding:72px 0 8px}
.feature-card{background:#fff;border-radius:var(--radius);padding:32px 28px;border:1px solid var(--line)}
.feature-card .fc-ico{width:52px;height:52px;border-radius:14px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.feature-card h3{font-size:20px;margin-bottom:8px}
.feature-card p{color:var(--muted);font-size:15px;margin:0}

/* ---------- sections ---------- */
.section{padding:110px 0}
.section-soft{background:var(--bg-soft)}
.kicker{display:inline-block;color:var(--blue);font-weight:700;font-size:13px;letter-spacing:.14em;margin-bottom:18px}
.section h2{font-size:clamp(32px,4vw,48px);font-weight:700;letter-spacing:-.02em}
.section .sub{color:var(--muted);max-width:640px;font-size:19px}
.center{text-align:center}
.center .sub{margin:0 auto}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split img{border-radius:var(--radius);width:100%;aspect-ratio:4/3;object-fit:cover}
.checklist{list-style:none;margin:24px 0 0;padding:0;display:grid;gap:16px}
.checklist li{display:flex;gap:12px;align-items:flex-start;font-size:16px}
.checklist .ck{flex:0 0 26px;height:26px;border-radius:50%;background:var(--bg-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:700}

/* stats */
.stats-band{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:56px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stats-band .st b{display:block;font-size:clamp(36px,4vw,52px);font-weight:700;letter-spacing:-.02em}
.stats-band .st span{color:var(--muted);font-size:15px}

/* product cards */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.prod-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.prod-card .pc-img{aspect-ratio:4/3;overflow:hidden;background:var(--bg-soft)}
.prod-card .pc-img img{width:100%;height:100%;object-fit:cover}
.prod-card .pc-body{padding:24px}
.prod-card .pc-cat{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--blue);margin-bottom:8px}
.prod-card h3{font-size:19px;margin-bottom:6px}
.prod-card p{color:var(--muted);font-size:14.5px;margin-bottom:16px}
.prod-card .pc-link{font-weight:600;color:var(--blue);font-size:15px}
.prod-card .pc-link:hover{text-decoration:underline}

/* process */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:48px}
.step{background:#fff;border-radius:var(--radius);padding:32px 26px;border:1px solid var(--line)}
.step .num{font-size:15px;font-weight:700;color:var(--muted);margin-bottom:16px;letter-spacing:.08em}
.step h3{font-size:18px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.5px;margin:0}

/* gallery */
.gal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:44px}
.gal-grid img{border-radius:var(--radius-sm);aspect-ratio:4/3;object-fit:cover;width:100%}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.news-card .nc-img{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft);position:relative}
.news-card .nc-img img{width:100%;height:100%;object-fit:cover}
.news-card .nc-date{position:absolute;left:16px;top:16px;background:rgba(255,255,255,.92);color:var(--muted);font-weight:600;font-size:12.5px;letter-spacing:.06em;padding:6px 12px;border-radius:980px}
.news-card .nc-body{padding:24px}
.news-card h3{font-size:18px;margin-bottom:8px}
.news-card p{color:var(--muted);font-size:14.5px;margin:0}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:48px}
.contact-card{background:#fff;border-radius:var(--radius);padding:36px;border:1px solid var(--line)}
.contact-card h3{margin-bottom:18px;font-size:22px}
.c-row{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line)}
.c-row:last-child{border:0}
.c-row .ci{flex:0 0 40px;height:40px;border-radius:12px;background:var(--bg-soft);color:var(--text);display:flex;align-items:center;justify-content:center;font-size:18px}
.c-row b{display:block;font-size:13px;color:var(--muted);font-weight:500}
.c-row span{font-size:16px;font-weight:600}
.form label{display:block;font-weight:600;font-size:14px;margin:14px 0 6px}
.form input,.form textarea,.form select{width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:12px;font-size:16px;font-family:inherit}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,113,227,.12)}
.form textarea{min-height:130px;resize:vertical}

/* page hero (inner pages) */
.page-hero{background:var(--bg-soft);padding:88px 0 72px;text-align:center}
.page-hero h1{font-size:clamp(36px,5vw,56px);font-weight:700;letter-spacing:-.02em;margin-bottom:12px}
.page-hero p{color:var(--muted);margin:0 auto;max-width:640px;font-size:19px}
.crumbs{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--blue)}
.crumbs a:hover{text-decoration:underline}

/* cta band */
.cta-band{background:var(--bg-soft);border-radius:var(--radius);padding:64px 48px;text-align:center;margin:0 0 0}
.cta-band h2{font-size:clamp(28px,3.4vw,40px);margin-bottom:10px}
.cta-band p{color:var(--muted);margin:0 0 28px;font-size:18px}
.cta-band .btn{background:var(--blue);color:#fff}
.cta-band .btn:hover{background:var(--blue-hover)}

/* footer */
footer{background:var(--bg-soft);color:var(--muted);padding:64px 0 0;border-top:1px solid var(--line)}
footer .brand{color:var(--text)}
footer .brand small{color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px}
.foot-grid h4{color:var(--text);font-size:13px;margin-bottom:16px;letter-spacing:.08em;font-weight:700}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:14.5px}
.foot-grid a{color:var(--muted)}
.foot-grid a:hover{color:var(--text)}
.foot-brand p{font-size:14px;max-width:300px}
.foot-bottom{border-top:1px solid var(--line);padding:22px 0;font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.whatsapp-float{position:fixed;right:22px;bottom:22px;z-index:60;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;box-shadow:var(--shadow-hover)}

/* responsive */
@media(max-width:960px){
  .main-nav{position:fixed;inset:64px 0 auto 0;background:#fff;flex-direction:column;padding:12px 20px 20px;border-bottom:1px solid var(--line);display:flex;box-shadow:var(--shadow-hover);opacity:0;transform:translateY(-10px);visibility:hidden;pointer-events:none;transition:opacity .24s var(--ease),transform .24s var(--ease),visibility 0s linear .24s}
  .main-nav.open{opacity:1;transform:translateY(0);visibility:visible;pointer-events:auto;transition:opacity .24s var(--ease),transform .24s var(--ease),visibility 0s}
  .main-nav a{opacity:0;transform:translateX(-8px);transition:opacity .2s var(--ease),transform .2s var(--ease),color .18s var(--ease),background .18s var(--ease)}
  .main-nav.open a{opacity:1;transform:translateX(0)}
  .main-nav.open a:nth-child(1){transition-delay:30ms}.main-nav.open a:nth-child(2){transition-delay:60ms}
  .main-nav.open a:nth-child(3){transition-delay:90ms}.main-nav.open a:nth-child(4){transition-delay:120ms}
  .main-nav.open a:nth-child(5){transition-delay:150ms}.main-nav.open a:nth-child(6){transition-delay:180ms}
  .nav-toggle{display:block}
  .header-cta{display:none}
  .hero .container{padding:72px 24px 64px}
  .split,.contact-grid{grid-template-columns:1fr}
  .overlap-grid,.prod-grid,.news-grid{grid-template-columns:1fr 1fr}
  .process-grid{grid-template-columns:1fr 1fr}
  .stats-band{grid-template-columns:1fr 1fr;padding:40px 24px}
  .gal-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta-band{padding:48px 28px}
  .section{padding:80px 0}
}
@media(max-width:600px){
  body{font-size:16px}
  .overlap-grid,.prod-grid,.news-grid,.process-grid,.gal-grid{grid-template-columns:1fr}
  .section{padding:72px 0}
  .foot-grid{grid-template-columns:1fr}
  .hero p.lead{font-size:18px}
  .stats-band{grid-template-columns:1fr 1fr}
}

/* ---------- motion: respect reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;transition-delay:0ms!important}
  html{scroll-behavior:auto}
  .rv{opacity:1!important;transform:none!important}
}