/* =========================================================
   Ye'an International Trading — Shared Stylesheet
   ========================================================= */
:root {
  --navy: #0a1628;
  --blue: #1a365d;
  --blue-light: #2b5ea7;
  --gold: #c8a04a;
  --gold-light: #e8c96a;
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f0f2f5;
  --gray-200: #e2e6ea;
  --gray-600: #6b7280;
  --gray-800: #2d3748;
  --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-serif: Georgia, 'Noto Serif SC', serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.1);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.15);
  --radius: 12px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--gray-800); line-height: 1.7;
  background: var(--white); -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }

/* ── Header ── */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,22,40,.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(200,160,74,.15); transition: var(--transition);
}
header.scrolled { background: rgba(10,22,40,.98); box-shadow: var(--shadow-md); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1280px; margin: 0 auto; padding: 0 24px; height: 72px;
}
.logo { display: flex; align-items: center; gap: 14px; }
.logo-img { width: 48px; height: 48px; border-radius: 8px; object-fit: cover; }
.logo-text { color: var(--white); }
.logo-text h1 { font-size: 15px; font-weight: 700; letter-spacing: .5px; line-height: 1.3; }
.logo-text span { font-size: 10px; color: var(--gold); letter-spacing: 1.5px; text-transform: uppercase; }

nav { display: flex; align-items: center; gap: 2px; }
nav > .nav-item { position: relative; }
nav a.nav-link {
  color: rgba(255,255,255,.78); font-size: 14px; font-weight: 500;
  padding: 10px 14px; border-radius: 6px; transition: var(--transition);
  display: inline-flex; align-items: center; gap: 5px; cursor: pointer;
}
nav a.nav-link:hover, nav a.nav-link.active { color: var(--white); background: rgba(255,255,255,.08); }
nav a.nav-link .caret { font-size: 9px; opacity: .7; transition: transform var(--transition); }
nav .nav-item:hover > a.nav-link .caret { transform: rotate(180deg); }
nav a.cta-nav { background: var(--gold); color: var(--navy); font-weight: 600; }
nav a.cta-nav:hover { background: var(--gold-light); }

/* Dropdown menu */
.dropdown-menu {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 240px;
  background: rgba(10,22,40,.97); backdrop-filter: blur(14px);
  border: 1px solid rgba(200,160,74,.18); border-radius: 12px;
  padding: 8px; box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .25s ease, transform .25s ease, visibility .25s;
  z-index: 1100;
}
nav .nav-item:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: 8px; color: rgba(255,255,255,.8);
  font-size: 13.5px; font-weight: 500; transition: var(--transition);
}
.dropdown-menu a:hover { background: rgba(200,160,74,.14); color: var(--white); }
.dropdown-menu a .dm-ic {
  width: 30px; height: 30px; border-radius: 7px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 15px;
  background: rgba(43,94,167,.35);
}
.dropdown-menu a .dm-txt small { display: block; font-size: 11px; color: rgba(255,255,255,.45); font-weight: 400; }

.lang-toggle {
  display: inline-flex; align-items: center; gap: 0;
  margin-left: 10px; border-radius: 6px; overflow: hidden;
  border: 1px solid rgba(255,255,255,.2); flex-shrink: 0;
}
.lang-btn {
  padding: 6px 12px; font-size: 12px; font-weight: 700;
  border: none; cursor: pointer; transition: var(--transition);
  background: transparent; color: rgba(255,255,255,.5); letter-spacing: .5px;
}
.lang-btn.active { background: var(--gold); color: var(--navy); }
.lang-btn:hover:not(.active) { color: var(--white); background: rgba(255,255,255,.08); }

.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-toggle span {
  display: block; width: 22px; height: 2px; background: var(--white);
  margin: 5px 0; border-radius: 2px; transition: var(--transition);
}

/* ── Hero (home) ── */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; filter: brightness(.45); }
.hero-overlay { position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(10,22,40,.6) 0%, rgba(10,22,40,.85) 100%); }
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 800px; padding: 120px 24px 80px; }
.hero-badge {
  display: inline-block; padding: 6px 20px; border-radius: 50px;
  background: rgba(200,160,74,.15); border: 1px solid rgba(200,160,74,.3);
  color: var(--gold); font-size: 13px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 24px;
  animation: floatBadge 4s ease-in-out infinite;
}
@keyframes floatBadge { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-6px)} }
.hero h2 { font-size: clamp(32px, 5vw, 56px); font-weight: 800; color: var(--white); line-height: 1.2; margin-bottom: 20px; }
.hero h2 em { font-style: normal; background: linear-gradient(90deg, var(--gold), var(--gold-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { font-size: 18px; color: rgba(255,255,255,.7); max-width: 600px; margin: 0 auto 36px; }
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: 8px; font-size: 15px; font-weight: 600; cursor: pointer; transition: var(--transition); border: none; }
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-primary:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,.3); }
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,.08); }
.btn-blue { background: var(--blue); color: var(--white); }
.btn-blue:hover { background: var(--blue-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.hero-stats { display: flex; justify-content: center; gap: 48px; margin-top: 64px; padding-top: 40px; border-top: 1px solid rgba(255,255,255,.1); }
.hero-stat { text-align: center; }
.hero-stat strong { display: block; font-size: 36px; font-weight: 800; color: var(--gold); font-family: var(--font-serif); }
.hero-stat span { font-size: 13px; color: rgba(255,255,255,.5); letter-spacing: 1px; }

/* ── Section header ── */
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block; padding: 4px 16px; border-radius: 50px;
  background: rgba(26,54,93,.08); color: var(--blue);
  font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px;
}
.section-header h2 { font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; color: var(--navy); line-height: 1.3; margin-bottom: 16px; }
.section-header p { font-size: 16px; color: var(--gray-600); max-width: 560px; margin: 0 auto; }

/* ── Products (home grid) ── */
#products { background: var(--gray-50); }
.products-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.product-card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  background: var(--white); box-shadow: var(--shadow-sm); transition: var(--transition); display: flex; flex-direction: column;
}
.product-card { cursor: pointer; }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-card::after {
  content: '\2192';
  position: absolute; right: 18px; bottom: 18px; z-index: 3;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--blue); color: #fff; font-size: 18px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(10,22,40,.25);
  opacity: 0; transform: translateY(10px) scale(.8);
  transition: var(--transition);
}
.product-card:hover::after { opacity: 1; transform: translateY(0) scale(1); }
.product-img { position: relative; height: 280px; overflow: hidden; background: var(--gray-100); }
.product-img .img-stack { position: absolute; inset: 0; }
.product-img .img-stack img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 1; transition: opacity .6s cubic-bezier(.4,0,.2,1), transform .8s cubic-bezier(.4,0,.2,1); transform: scale(1);
}
.img-stack img:not(:first-child) { opacity: 0; }
.img-stack img.active { opacity: 1; }
.product-card:hover .product-img .img-stack img.active { transform: scale(1.06); }
.img-pager {
  position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%);
  display: flex; gap: 6px; z-index: 2; padding: 4px 10px; border-radius: 50px;
  background: rgba(10,22,40,.35); backdrop-filter: blur(6px);
}
.img-pager .dot { width: 6px; height: 6px; border-radius: 50%; background: rgba(255,255,255,.5); cursor: pointer; transition: var(--transition); border: none; padding: 0; }
.img-pager .dot.active { background: var(--gold); width: 18px; border-radius: 4px; }
.img-count {
  position: absolute; top: 16px; right: 16px; z-index: 2; padding: 4px 10px; border-radius: 6px;
  background: rgba(10,22,40,.7); backdrop-filter: blur(8px); color: var(--white); font-size: 11px; font-weight: 700; letter-spacing: .5px;
  display: inline-flex; align-items: center; gap: 4px;
}
.product-img::after { content: ''; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, transparent 50%, rgba(10,22,40,.5) 100%); z-index: 1; }
.img-stack { z-index: 0; }
.product-index { position: absolute; bottom: 14px; left: 16px; z-index: 2; font-family: var(--font-serif); font-size: 30px; font-weight: 700; line-height: 1; color: rgba(255,255,255,.32); letter-spacing: 1px; text-shadow: 0 2px 8px rgba(0,0,0,.4); }
.product-label { position: absolute; top: 16px; left: 16px; z-index: 3; padding: 5px 14px; border-radius: 6px; background: rgba(10,22,40,.7); backdrop-filter: blur(8px); color: var(--gold); font-size: 11px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; }
.product-body { padding: 28px 28px 32px; flex: 1; display: flex; flex-direction: column; }
.product-body h3 { font-size: 22px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.product-body .product-sub { font-size: 13px; color: var(--gray-600); font-weight: 500; margin-bottom: 14px; }
.product-body p { font-size: 14px; color: var(--gray-600); line-height: 1.75; flex: 1; }
.product-specs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.product-specs span { padding: 4px 12px; border-radius: 50px; background: var(--gray-100); font-size: 12px; color: var(--blue); font-weight: 500; }
.sub-products { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--gray-200); }
.sub-products span { padding: 4px 10px; border-radius: 50px; background: rgba(200,160,74,.1); border: 1px solid rgba(200,160,74,.2); color: var(--navy); font-size: 11px; font-weight: 600; letter-spacing: .3px; }
.sub-products-title { width: 100%; font-size: 11px; color: var(--gray-600); font-weight: 600; letter-spacing: .5px; margin-bottom: 2px; }

/* ── About (home) ── */
#about { background: var(--white); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-images { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-images img { border-radius: var(--radius); object-fit: cover; width: 100%; height: 220px; box-shadow: var(--shadow-sm); }
.about-images img:first-child { grid-column: 1 / -1; height: 260px; }
.about-text h3 { font-size: 32px; font-weight: 800; color: var(--navy); margin-bottom: 20px; line-height: 1.3; }
.about-text p { font-size: 15px; color: var(--gray-600); margin-bottom: 16px; line-height: 1.8; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
.about-feature { display: flex; align-items: flex-start; gap: 12px; padding: 16px; border-radius: 10px; background: var(--gray-50); transition: var(--transition); }
.about-feature:hover { background: var(--gray-100); transform: translateY(-2px); }
.about-feature-icon { width: 40px; height: 40px; border-radius: 8px; flex-shrink: 0; background: linear-gradient(135deg, var(--blue), var(--blue-light)); display: flex; align-items: center; justify-content: center; font-size: 18px; }
.about-feature h4 { font-size: 14px; font-weight: 700; color: var(--navy); margin-bottom: 2px; }
.about-feature p { font-size: 12px; color: var(--gray-600); margin: 0; line-height: 1.5; }

/* ── Advantages (home) ── */
#advantages { background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%); color: var(--white); }
#advantages .section-tag { background: rgba(200,160,74,.15); color: var(--gold); }
#advantages .section-header h2 { color: var(--white); }
#advantages .section-header p { color: rgba(255,255,255,.6); }
.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.advantage-card { padding: 36px 28px; border-radius: var(--radius); background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08); text-align: center; transition: var(--transition); }
.advantage-card:hover { background: rgba(255,255,255,.1); transform: translateY(-4px); }
.advantage-icon { width: 56px; height: 56px; border-radius: 12px; margin: 0 auto 20px; background: linear-gradient(135deg, var(--gold), var(--gold-light)); display: flex; align-items: center; justify-content: center; font-size: 26px; }
.advantage-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.advantage-card p { font-size: 13px; color: rgba(255,255,255,.6); line-height: 1.7; }

/* ── Going Global (home overview) ── */
#going-global { background: linear-gradient(135deg, #0b2540 0%, #15406e 100%); color: var(--white); }
#going-global .section-tag { background: rgba(200,160,74,.15); color: var(--gold); }
#going-global .section-header h2 { color: var(--white); }
#going-global .section-header p { color: rgba(255,255,255,.6); }
#going-global .advantage-card { text-decoration: none; display: block; }
#going-global .advantage-card h4 { color: var(--white); }

/* ── Contact (home) ── */
#contact { background: var(--gray-50); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-info h3 { font-size: 28px; font-weight: 800; color: var(--navy); margin-bottom: 16px; }
.contact-info > p { font-size: 15px; color: var(--gray-600); margin-bottom: 32px; }
.contact-item { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 24px; }
.contact-item-icon { width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0; background: var(--blue); display: flex; align-items: center; justify-content: center; font-size: 18px; }
.contact-item h4 { font-size: 14px; font-weight: 700; color: var(--navy); margin-bottom: 2px; }
.contact-item p { font-size: 14px; color: var(--gray-600); margin: 0; }
.contact-form { background: var(--white); padding: 40px; border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.contact-form h3 { font-size: 20px; font-weight: 700; color: var(--navy); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--gray-800); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px; border-radius: 8px; border: 1.5px solid var(--gray-200);
  font-size: 14px; font-family: var(--font-sans); color: var(--gray-800); transition: var(--transition); background: var(--white);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--blue-light); box-shadow: 0 0 0 3px rgba(43,94,167,.12); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-submit { width: 100%; padding: 14px; border-radius: 8px; background: var(--blue); color: var(--white); font-size: 15px; font-weight: 700; border: none; cursor: pointer; transition: var(--transition); }
.form-submit:hover { background: var(--blue-light); }

/* ── Footer ── */
footer { background: var(--navy); color: rgba(255,255,255,.5); padding: 48px 0 24px; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-brand h3 { color: var(--white); font-size: 20px; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.7; }
.footer-col h4 { color: var(--white); font-size: 14px; font-weight: 700; margin-bottom: 16px; letter-spacing: 1px; text-transform: uppercase; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,.5); margin-bottom: 10px; transition: var(--transition); }
.footer-col a:hover { color: var(--gold); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; font-size: 13px; }

/* ══════════════════════════════════════════════════════
   INTERIOR PAGES (products / about / advantages)
   ══════════════════════════════════════════════════════ */

/* Page hero banner */
.page-hero {
  margin-top: 72px; position: relative; padding: 90px 0 70px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 60%, var(--blue-light) 100%);
  color: var(--white); overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(200,160,74,.18), transparent 45%),
              radial-gradient(circle at 85% 80%, rgba(43,94,167,.4), transparent 50%);
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,.55); margin-bottom: 18px; }
.breadcrumb a { color: rgba(255,255,255,.7); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .sep { opacity: .4; }
.page-hero h1 { font-size: clamp(32px, 4.5vw, 52px); font-weight: 800; line-height: 1.15; margin-bottom: 16px; }
.page-hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--gold), var(--gold-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.page-hero p { font-size: 17px; color: rgba(255,255,255,.72); max-width: 640px; }
.page-hero .ph-stats { display: flex; gap: 40px; margin-top: 36px; flex-wrap: wrap; }
.page-hero .ph-stat strong { display: block; font-size: 30px; font-weight: 800; color: var(--gold); font-family: var(--font-serif); }
.page-hero .ph-stat span { font-size: 12px; color: rgba(255,255,255,.55); letter-spacing: 1px; }

/* Sticky sub-navigation */
.subnav {
  position: sticky; top: 72px; z-index: 900;
  background: rgba(255,255,255,.96); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200); box-shadow: var(--shadow-sm);
}
.subnav-inner { display: flex; gap: 4px; overflow-x: auto; padding: 10px 0; scrollbar-width: none; }
.subnav-inner::-webkit-scrollbar { display: none; }
.subnav a {
  flex-shrink: 0; padding: 8px 16px; border-radius: 50px; font-size: 13.5px; font-weight: 600;
  color: var(--gray-600); white-space: nowrap; transition: var(--transition);
  display: inline-flex; align-items: center; gap: 7px;
}
.subnav a .sn-ic { font-size: 14px; }
.subnav a:hover { color: var(--navy); background: var(--gray-100); }
.subnav a.active { background: var(--navy); color: var(--white); }

/* Detail content blocks */
.detail-section { padding: 80px 0; border-bottom: 1px solid var(--gray-100); }
.detail-section:nth-child(even) { background: var(--gray-50); }
.detail-section:last-child { border-bottom: none; }
.detail-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.detail-grid.reverse { direction: rtl; }
.detail-grid.reverse > * { direction: ltr; }
.detail-media { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); background: var(--gray-100); }
.detail-media img { width: 100%; height: 420px; object-fit: cover; }
.detail-media .dm-tag { position: absolute; top: 16px; left: 16px; padding: 6px 14px; border-radius: 6px; background: rgba(10,22,40,.75); backdrop-filter: blur(8px); color: var(--gold); font-size: 11px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; z-index: 2; }
.detail-grid .detail-text h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 800; color: var(--navy); margin-bottom: 6px; line-height: 1.25; }
.detail-grid .detail-text .dt-sub { font-size: 14px; color: var(--gold); font-weight: 600; letter-spacing: .5px; margin-bottom: 18px; }
.detail-grid .detail-text p { font-size: 15px; color: var(--gray-600); line-height: 1.85; margin-bottom: 16px; }

/* Spec table */
.spec-table { width: 100%; border-collapse: collapse; margin-top: 18px; font-size: 14px; }
.spec-table th, .spec-table td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--gray-200); }
.spec-table th { background: var(--gray-50); color: var(--navy); font-weight: 700; width: 42%; }
.spec-table tr:hover td { background: rgba(43,94,167,.04); }
.spec-table td { color: var(--gray-600); }

/* ── Feature list (going-global) ── */
.feat-list { list-style: none; margin: 18px 0 0; padding: 0; }
.feat-list li { display: flex; align-items: flex-start; gap: 12px; padding: 9px 0; border-bottom: 1px dashed var(--gray-200); font-size: 14px; color: var(--gray-700); line-height: 1.55; }
.feat-list li:last-child { border-bottom: none; }
.fl-ic { flex: 0 0 auto; width: 30px; height: 30px; border-radius: 8px; background: linear-gradient(135deg, var(--blue), var(--blue-light)); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 15px; }

/* ── Channel grid (AI omnichannel) ── */
.channel-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 22px 0 10px; }
.channel-card { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: 12px; padding: 18px; transition: var(--transition); }
.channel-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--blue); }
.channel-card .ch-ic { font-size: 26px; margin-bottom: 8px; }
.channel-card h4 { font-size: 16px; margin-bottom: 6px; color: var(--navy); }
.channel-card p { font-size: 13px; color: var(--gray-600); line-height: 1.6; }
@media (max-width: 640px) { .channel-grid { grid-template-columns: 1fr; } }

/* ── Note ── */
.note { margin-top: 16px; font-size: 13px; color: var(--gray-500); line-height: 1.7; font-style: italic; }

/* Tag chips / pills */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip { padding: 6px 14px; border-radius: 50px; font-size: 12.5px; font-weight: 600; }
.chip-blue { background: rgba(43,94,167,.1); color: var(--blue); }
.chip-gold { background: rgba(200,160,74,.12); color: var(--navy); border: 1px solid rgba(200,160,74,.25); }
.chip-green { background: rgba(34,139,87,.1); color: #1f7a4d; }

/* Info cards grid (factory network, services) */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.info-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); transition: var(--transition); }
.info-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(200,160,74,.4); }
.info-card .ic-icon { width: 52px; height: 52px; border-radius: 12px; background: linear-gradient(135deg, var(--blue), var(--blue-light)); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 18px; animation: iconBob 3.4s ease-in-out infinite; }
.info-card .ic-emoji { display: inline-block; transition: transform .35s cubic-bezier(.34,1.56,.64,1); }
.info-card:hover .ic-emoji { transform: scale(1.22) rotate(-8deg); }
@keyframes iconBob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
.info-card h4 { font-size: 17px; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.info-card p { font-size: 13.5px; color: var(--gray-600); line-height: 1.7; }
.info-card .ic-meta { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--gray-200); display: flex; gap: 18px; }
.info-card .ic-meta div strong { display: block; font-size: 20px; font-weight: 800; color: var(--gold); font-family: var(--font-serif); }
.info-card .ic-meta div span { font-size: 11px; color: var(--gray-600); }

/* ── Animated Process Flow ── */
.process-flow { position: relative; padding: 20px 0 10px; }
.process-track { position: relative; display: flex; justify-content: space-between; }
.process-track::before {
  content: ''; position: absolute; top: 31px; left: 5%; right: 5%; height: 3px;
  background: var(--gray-200); border-radius: 3px; z-index: 0;
}
.process-track .flow-fill {
  position: absolute; top: 31px; left: 5%; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--gold), var(--gold-light)); border-radius: 3px; z-index: 1;
  transition: width 2.2s cubic-bezier(.4,0,.2,1);
}
.process-step { position: relative; z-index: 2; text-align: center; flex: 1; max-width: 170px; }
.process-step .ps-node {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 16px;
  background: var(--white); border: 3px solid var(--gray-200);
  display: flex; align-items: center; justify-content: center; font-size: 26px;
  transition: transform .5s cubic-bezier(.34,1.56,.64,1), border-color .5s, background .5s, box-shadow .5s;
  opacity: 0; transform: translateY(20px) scale(.8);
}
.process-step.in .ps-node { opacity: 1; transform: translateY(0) scale(1); border-color: var(--gold); background: linear-gradient(135deg, var(--gold), var(--gold-light)); box-shadow: 0 8px 24px rgba(200,160,74,.35); }
.process-step .ps-num { position: absolute; top: -6px; left: 50%; transform: translateX(-50%); width: 24px; height: 24px; border-radius: 50%; background: var(--navy); color: var(--white); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; border: 2px solid var(--white); }
.process-step h4 { font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.process-step p { font-size: 12.5px; color: var(--gray-600); line-height: 1.6; }
.process-step .ps-abbr { font-size: 11px; color: var(--gold); font-weight: 700; letter-spacing: 1px; }

/* Vertical timeline (milestones) */
.timeline { position: relative; max-width: 860px; margin: 30px auto 0; padding-left: 8px; }
.timeline::before { content: ''; position: absolute; left: 22px; top: 8px; bottom: 8px; width: 3px; background: var(--gray-200); border-radius: 3px; }
.timeline .tl-fill { position: absolute; left: 22px; top: 8px; width: 3px; height: 0; background: linear-gradient(180deg, var(--gold), var(--gold-light)); border-radius: 3px; transition: height 2.4s cubic-bezier(.4,0,.2,1); z-index: 1; }
.tl-item { position: relative; padding: 0 0 40px 64px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-dot { position: absolute; left: 12px; top: 4px; width: 22px; height: 22px; border-radius: 50%; background: var(--white); border: 3px solid var(--gray-200); z-index: 2; transition: border-color .5s, background .5s, transform .5s; }
.tl-item.in .tl-dot { border-color: var(--gold); background: var(--gold); transform: scale(1.15); box-shadow: 0 0 0 6px rgba(200,160,74,.15); }
.tl-year { font-size: 20px; font-weight: 800; color: var(--navy); font-family: var(--font-serif); margin-bottom: 4px; }
.tl-item h4 { font-size: 16px; font-weight: 700; color: var(--blue); margin-bottom: 6px; }
.tl-item p { font-size: 14px; color: var(--gray-600); line-height: 1.75; }

/* Stat counters row */
.counters { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 20px; }
.counter { text-align: center; padding: 28px 16px; border-radius: var(--radius); background: var(--white); border: 1px solid var(--gray-200); box-shadow: var(--shadow-sm); }
.counter .c-num { font-size: 40px; font-weight: 800; color: var(--navy); font-family: var(--font-serif); line-height: 1; }
.counter .c-num .c-suffix { color: var(--gold); }
.counter .c-label { font-size: 13px; color: var(--gray-600); margin-top: 8px; }

/* Highlight / callout box */
.callout { background: linear-gradient(135deg, var(--navy), var(--blue)); color: var(--white); border-radius: var(--radius); padding: 40px; margin-top: 40px; display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; }
.callout h3 { font-size: 24px; font-weight: 800; margin-bottom: 10px; }
.callout p { font-size: 14.5px; color: rgba(255,255,255,.75); }
.callout .btn { white-space: nowrap; }

/* Gallery */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 30px; }
.gallery figure { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); position: relative; }
.gallery img { width: 100%; height: 200px; object-fit: cover; transition: transform .6s cubic-bezier(.4,0,.2,1); }
.gallery figure:hover img { transform: scale(1.08); }
.gallery figcaption { position: absolute; bottom: 0; left: 0; right: 0; padding: 10px 14px; background: linear-gradient(transparent, rgba(10,22,40,.85)); color: var(--white); font-size: 12.5px; font-weight: 600; }

/* Two-column checklist */
.checklist { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.check-item { display: flex; align-items: flex-start; gap: 12px; padding: 16px; border-radius: 10px; background: var(--gray-50); border: 1px solid var(--gray-200); transition: var(--transition); }
.check-item:hover { border-color: rgba(200,160,74,.4); background: var(--white); }
.check-item .ck { width: 28px; height: 28px; border-radius: 7px; background: rgba(34,139,87,.12); color: #1f7a4d; display: flex; align-items: center; justify-content: center; font-weight: 800; flex-shrink: 0; font-size: 15px; }
.check-item h4 { font-size: 14.5px; font-weight: 700; color: var(--navy); margin-bottom: 3px; }
.check-item p { font-size: 13px; color: var(--gray-600); margin: 0; line-height: 1.6; }

/* ── Animations ── */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.zoom-in { opacity: 0; transform: scale(.94); transition: opacity .7s ease, transform .7s ease; }
.zoom-in.visible { opacity: 1; transform: scale(1); }
.stagger > * { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.stagger.in > * { opacity: 1; transform: translateY(0); }
.stagger.in > *:nth-child(1) { transition-delay: .05s; }
.stagger.in > *:nth-child(2) { transition-delay: .15s; }
.stagger.in > *:nth-child(3) { transition-delay: .25s; }
.stagger.in > *:nth-child(4) { transition-delay: .35s; }
.stagger.in > *:nth-child(5) { transition-delay: .45s; }
.stagger.in > *:nth-child(6) { transition-delay: .55s; }

/* ── Responsive ── */
@media (max-width: 1080px) {
  .counters { grid-template-columns: repeat(2, 1fr); }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 960px) {
  .products-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .detail-grid.reverse { direction: ltr; }
  .detail-media img { height: 300px; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .checklist { grid-template-columns: 1fr; }
  .callout { grid-template-columns: 1fr; }
  .process-track { flex-wrap: wrap; gap: 30px 0; }
  .process-track::before, .process-track .flow-fill { display: none; }
  .process-step { max-width: 45%; }
}
@media (max-width: 640px) {
  nav { display: none; }
  nav.open {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: 72px; left: 0; right: 0;
    background: rgba(10,22,40,.98); padding: 16px; max-height: calc(100vh - 72px); overflow-y: auto;
    border-top: 1px solid rgba(255,255,255,.08);
  }
  nav.open .nav-item { position: static; }
  nav.open .dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; background: transparent; margin: 4px 0 8px 8px; padding: 0; }
  nav.open .dropdown-menu a { color: rgba(255,255,255,.8); }
  .mobile-toggle { display: block; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .advantages-grid { grid-template-columns: 1fr; }
  .about-features { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .counters, .cards-grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .process-step { max-width: 100%; }
}

/* ───────────────────────────────────────────────
   FOOTER SOCIAL BAR + FLOATING WHATSAPP
   ─────────────────────────────────────────────── */
.footer-social {
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap;
  gap: 16px; padding: 28px 0 10px; margin-top: 8px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.fs-label { color: rgba(255,255,255,.7); font-size: 14px; font-weight: 600; letter-spacing: .5px; margin-right: 4px; }
.social-link {
  width: 42px; height: 42px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.08); color: #fff;
  transition: transform .3s ease, background .3s ease, box-shadow .3s ease;
}
.social-link svg { width: 20px; height: 20px; display: block; }
.social-link:hover { transform: translateY(-3px); }
.social-link.sl-wa:hover { background: #25D366; box-shadow: 0 6px 18px rgba(37,211,102,.4); }
.social-link.sl-fb:hover { background: #1877F2; box-shadow: 0 6px 18px rgba(24,119,242,.4); }
.social-link.sl-ig:hover { background: #E1306C; box-shadow: 0 6px 18px rgba(225,48,108,.4); }
.social-link.sl-yt:hover { background: #FF0000; box-shadow: 0 6px 18px rgba(255,0,0,.4); }

/* footer copyright line (existing .footer-bottom keeps flex layout) */
.footer-bottom { color: rgba(255,255,255,.4); }

/* clickable WhatsApp inside contact block */
.wa-link { color: var(--gray-600); text-decoration: none; border-bottom: 1px dashed var(--blue); }
.wa-link:hover { color: var(--blue); }

/* floating WhatsApp button */
.wa-float {
  position: fixed; right: 24px; bottom: 24px; z-index: 999;
  width: 58px; height: 58px; border-radius: 50%;
  background: #25D366; color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(37,211,102,.45);
  transition: transform .25s ease;
  animation: waPulse 2.4s infinite;
}
.wa-float svg { width: 30px; height: 30px; display: block; }
.wa-float:hover { transform: scale(1.08); }
.wa-float-tip {
  position: absolute; right: 70px; top: 50%; transform: translateY(-50%);
  background: var(--navy); color: #fff; white-space: nowrap;
  font-size: 13px; padding: 7px 12px; border-radius: 8px;
  opacity: 0; pointer-events: none; transition: opacity .25s ease;
}
.wa-float-tip::after {
  content: ''; position: absolute; right: -5px; top: 50%; transform: translateY(-50%);
  border: 5px solid transparent; border-left-color: var(--navy);
}
.wa-float:hover .wa-float-tip { opacity: 1; }
@keyframes waPulse {
  0%   { box-shadow: 0 0 0 0 rgba(37,211,102,.5); }
  70%  { box-shadow: 0 0 0 14px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}
@media (max-width: 640px) {
  .wa-float { right: 16px; bottom: 16px; width: 52px; height: 52px; }
  .wa-float svg { width: 26px; height: 26px; }
  .wa-float-tip { display: none; }
}


/* product-specific social row inside product detail sections */
.prod-social { display: flex; align-items: center; gap: 14px; margin-top: 22px; flex-wrap: wrap; }
.ps-label { font-size: 12px; font-weight: 700; color: var(--blue); letter-spacing: .8px; text-transform: uppercase; margin-right: 2px; }
.prod-social .social-link { width: 38px; height: 38px; }
.prod-social .social-link svg { width: 18px; height: 18px; }

/* ── footer social dropdown (click FB/IG to pick product page) ── */
.social-item { position: relative; display: flex; }
.social-link[aria-haspopup] { cursor: pointer; }
.social-dropdown {
  position: absolute; bottom: calc(100% + 12px); left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--navy); border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px; padding: 6px; min-width: 190px;
  box-shadow: 0 14px 34px rgba(0,0,0,.4);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .2s ease, transform .2s ease; z-index: 30;
}
.social-item.open .social-dropdown { opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(-50%) translateY(0); }
.social-dropdown::after {
  content: ''; position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  border: 7px solid transparent; border-top-color: var(--navy);
}
.social-dropdown a {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 14px; border-radius: 8px; color: #fff; text-decoration: none;
  font-size: 14px; transition: background .18s ease;
}
.social-dropdown a:hover { background: rgba(255,255,255,.1); }
.social-dropdown .sd-name { font-weight: 600; }
.social-dropdown .sd-go { color: rgba(255,255,255,.5); font-size: 13px; }
.social-item.open .social-link[aria-haspopup] { background: rgba(255,255,255,.18); }