/* ==========================================================================
   WEIFENG — Precision Metal Manufacturing
   Design System & Global Styles
   ========================================================================== */

:root {
  /* Brand colors */
  --color-navy: #102844;
  --color-navy-light: #183b62;
  --color-navy-dark: #091a2e;
  --color-accent: #ef5a2f;
  --color-accent-dark: #d9471f;
  --color-cyan: #32b7c8;
  --color-cyan-dark: #168b9d;

  /* Neutrals */
  --color-ink: #1A1F2B;
  --color-gray-700: #3F4A5C;
  --color-gray-600: #5C6773;
  --color-gray-400: #9AA5B1;
  --color-gray-200: #E4E9EF;
  --color-gray-100: #F2F5F8;
  --color-white: #FFFFFF;

  /* Type */
  --font-heading: 'Poppins', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;

  /* Layout */
  --container-max: 1200px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(11, 37, 69, 0.08);
  --shadow-md: 0 8px 24px rgba(11, 37, 69, 0.12);
  --shadow-lg: 0 16px 48px rgba(11, 37, 69, 0.18);
  --transition: 0.25s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  line-height: 1.25;
  margin: 0 0 0.5em;
}
p { margin: 0 0 1em; color: var(--color-gray-700); }
button { font-family: inherit; cursor: pointer; }
.icon { width: 1em; height: 1em; fill: currentColor; }

/* ---------- Layout helpers ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 88px 0; }
.section--tight { padding: 56px 0; }
.section--gray { background: var(--color-gray-100); }
.section--navy { background: var(--color-navy); color: var(--color-white); }
.section--navy h2, .section--navy h3 { color: var(--color-white); }
.section--navy p { color: rgba(255,255,255,0.75); }

.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.eyebrow::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--color-accent);
}
.section-head h2 { font-size: 34px; }
.section-head p { font-size: 16px; }

.grid { display: grid; gap: 32px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--color-accent); color: var(--color-white); }
.btn-primary:hover { background: var(--color-accent-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; border-color: var(--color-white); color: var(--color-white); }
.btn-outline:hover { background: var(--color-white); color: var(--color-navy); }
.btn-outline-navy { background: transparent; border-color: var(--color-navy); color: var(--color-navy); }
.btn-outline-navy:hover { background: var(--color-navy); color: var(--color-white); }
.btn-secondary { background: var(--color-navy); color: var(--color-white); }
.btn-secondary:hover { background: var(--color-navy-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-block { width: 100%; }
.btn-sm { padding: 10px 18px; font-size: 13px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 700;
  background: var(--color-white);
  box-shadow: 0 1px 0 var(--color-gray-200);
}
.topbar {
  background: var(--color-navy-dark);
  color: rgba(255,255,255,0.85);
  font-size: 13px;
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; height: 38px; }
.topbar-contacts { display: flex; gap: 24px; }
.topbar-contacts a { display: inline-flex; align-items: center; gap: 6px; color: rgba(255,255,255,0.85); }
.topbar-contacts a:hover { color: var(--color-cyan); }
.topbar-social { display: flex; gap: 14px; }
.topbar-social a { color: rgba(255,255,255,0.7); }
.topbar-social a:hover { color: var(--color-accent); }

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand img { width: auto; height: 38px; }
.brand-name { color: var(--color-navy); font-family: var(--font-heading); font-size: 24px; font-weight: 700; letter-spacing: .08em; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-list > li > a {
  display: inline-block;
  padding: 12px 16px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 15px;
  color: var(--color-navy);
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.nav-list > li > a:hover,
.nav-list > li.active > a {
  color: var(--color-accent);
  background: var(--color-gray-100);
}
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-navy);
  width: 40px;
  height: 40px;
}
.nav-toggle svg { width: 26px; height: 26px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: radial-gradient(circle at 82% 18%, #244d76 0, transparent 34%), linear-gradient(112deg, #091a2e 0%, #102d4d 72%, #173d62 100%);
  color: var(--color-white);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
}
.hero-layout { position: relative; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(390px, .88fr); gap: 72px; align-items: center; min-height: 630px; }
.hero-inner {
  position: relative;
  padding: 96px 0 88px;
  max-width: 720px;
}
.hero-inner .eyebrow { color: var(--color-cyan); }
.hero-inner .eyebrow::before { background: var(--color-cyan); }
.hero h1 { color: var(--color-white); font-size: clamp(42px, 5vw, 64px); line-height: 1.08; letter-spacing: -2px; margin-bottom: 24px; }
.hero p.lead { color: rgba(255,255,255,0.8); font-size: 18px; max-width: 560px; }
.hero-cta { display: flex; gap: 16px; margin-top: 32px; flex-wrap: wrap; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 30px; color: rgba(255,255,255,.72); font-size: 13px; font-weight: 600; }
.hero-proof span { display: inline-flex; align-items: center; gap: 7px; }
.hero-proof span::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--color-cyan); box-shadow: 0 0 0 4px rgba(50,183,200,.14); }
.hero-showcase { position: relative; min-height: 470px; }
.showcase-main { position: absolute; inset: 38px 44px 34px 0; border-radius: 6px; overflow: hidden; background: #eaf0f3; box-shadow: 0 28px 65px rgba(0,0,0,.32); }
.showcase-main img, .showcase-small img { width: 100%; height: 100%; object-fit: cover; }
.showcase-main::after { content: ''; position: absolute; inset: 0; border: 1px solid rgba(255,255,255,.28); pointer-events: none; }
.showcase-label { position: absolute; left: 0; right: 0; bottom: 0; padding: 50px 24px 22px; background: linear-gradient(transparent, rgba(4,18,33,.92)); color: #fff; }
.showcase-label span { display: block; color: var(--color-cyan); font-size: 11px; text-transform: uppercase; letter-spacing: 1.4px; margin-bottom: 3px; }
.showcase-label strong { font-family: var(--font-heading); font-size: 22px; }
.showcase-small { position: absolute; right: 0; width: 126px; height: 126px; border: 5px solid rgba(255,255,255,.92); border-radius: 5px; overflow: hidden; box-shadow: 0 15px 35px rgba(0,0,0,.28); }
.showcase-small--top { top: 0; }
.showcase-small--bottom { bottom: 0; }
.showcase-chip { position: absolute; left: -34px; top: 24px; padding: 14px 18px; background: var(--color-accent); color: #fff; box-shadow: 0 12px 30px rgba(0,0,0,.22); }
.showcase-chip strong, .showcase-chip span { display: block; }
.showcase-chip strong { font: 700 20px var(--font-heading); }
.showcase-chip span { font-size: 10px; text-transform: uppercase; letter-spacing: .7px; opacity: .86; }
.trust-strip { background: #fff; border-bottom: 1px solid var(--color-gray-200); }
.trust-strip-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; color: var(--color-gray-600); font-size: 13px; font-weight: 600; letter-spacing: .2px; }
.trust-intro { color: var(--color-navy) !important; font-family: var(--font-heading); text-transform: uppercase; letter-spacing: 1px !important; padding-right: 28px; border-right: 1px solid var(--color-gray-200); }

.page-hero {
  position: relative;
  background: var(--color-navy);
  color: var(--color-white);
  overflow: hidden;
}
.page-hero-inner { position: relative; padding: 64px 0; text-align: center; }
.page-hero h1 { color: var(--color-white); font-size: 40px; margin-bottom: 12px; }
.breadcrumb { display: flex; justify-content: center; gap: 8px; color: rgba(255,255,255,0.7); font-size: 14px; }
.breadcrumb a:hover { color: var(--color-cyan); }

/* ---------- Stats bar ---------- */
.stats-bar {
  background: var(--color-navy-light);
  color: var(--color-white);
}
.stats-bar .grid-4 { padding: 40px 0; text-align: center; }
.stat-num {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 700;
  color: var(--color-white);
}
.stat-num span { color: var(--color-accent); }
.stat-label { font-size: 14px; color: rgba(255,255,255,0.7); text-transform: uppercase; letter-spacing: 1px; }

/* ---------- Cards ---------- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--color-gray-200);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

/* Category cards */
.category-card {
  padding: 32px 24px;
  text-align: center;
  border-radius: 2px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--color-accent); }
.category-card .cat-icon {
  width: 64px; height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--color-gray-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-navy);
}
.category-card .cat-icon svg { width: 30px; height: 30px; }
.category-card h3 { font-size: 18px; margin-bottom: 8px; }
.category-card p { font-size: 14px; margin-bottom: 16px; }
.category-card .link-more { font-family: var(--font-heading); font-weight: 600; font-size: 14px; color: var(--color-accent); display: inline-flex; align-items: center; gap: 6px; }
.category-card .link-more svg { width: 14px; height: 14px; transition: transform var(--transition); }
.category-card:hover .link-more svg { transform: translateX(4px); }

/* Product cards */
.product-card { display: flex; flex-direction: column; height: 100%; }
.product-card[data-category="liquid-cooling-parts"] { order: -1; }
.product-card .product-img { aspect-ratio: 1 / 1; background: var(--color-gray-100); overflow: hidden; position: relative; }
.product-card .product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.product-card:hover .product-img img { transform: scale(1.05); }
.product-tag {
  position: absolute; top: 12px; left: 12px;
  background: var(--color-accent); color: #fff;
  font-size: 11px; font-weight: 700; letter-spacing: 0.5px;
  padding: 5px 10px; border-radius: 20px; text-transform: uppercase;
}
.product-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.product-cat { font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--color-cyan-dark); margin-bottom: 6px; }
.product-body h3 { font-size: 18px; margin-bottom: 8px; }
.product-body p { font-size: 14px; flex: 1; }
.product-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--color-gray-200); }
.product-foot .btn { padding: 8px 16px; font-size: 13px; }
.spec-mini { font-size: 12px; color: var(--color-gray-600); }

/* Feature list */
.feature-item { display: flex; gap: 20px; }
.feature-icon {
  flex-shrink: 0;
  width: 56px; height: 56px; border-radius: var(--radius-sm);
  background: rgba(0,168,232,0.12);
  color: var(--color-cyan);
  display: flex; align-items: center; justify-content: center;
}
.feature-icon svg { width: 26px; height: 26px; }
.feature-item h4 { font-size: 17px; margin-bottom: 6px; }
.feature-item p { font-size: 14px; margin-bottom: 0; }

/* Timeline */
.timeline { position: relative; padding-left: 32px; border-left: 3px solid var(--color-gray-200); }
.timeline-item { position: relative; padding-bottom: 40px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute; left: -41px; top: 4px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--color-accent); border: 3px solid var(--color-white); box-shadow: 0 0 0 2px var(--color-accent);
}
.timeline-year { font-family: var(--font-heading); font-weight: 700; color: var(--color-accent); font-size: 14px; letter-spacing: 1px; }
.timeline-item h4 { margin: 4px 0 8px; }

/* Badges / certifications */
.badge-grid { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.badge-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-white); border: 1px solid var(--color-gray-200);
  padding: 12px 20px; border-radius: 50px; font-family: var(--font-heading);
  font-weight: 600; font-size: 14px; color: var(--color-navy); box-shadow: var(--shadow-sm);
}
.badge-pill svg { width: 18px; height: 18px; color: var(--color-cyan); }

/* CTA banner */
.cta-banner {
  background: linear-gradient(120deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 56px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.cta-banner h2 { color: var(--color-white); font-size: 30px; margin-bottom: 8px; }
.cta-banner p { color: rgba(255,255,255,0.75); margin-bottom: 0; }

/* ---------- Filter tabs (Products page) ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 48px; }
.filter-btn {
  background: var(--color-white); border: 1px solid var(--color-gray-200);
  padding: 10px 20px; border-radius: 50px; font-family: var(--font-heading);
  font-weight: 500; font-size: 14px; color: var(--color-gray-700);
  transition: all var(--transition);
}
.filter-btn:hover { border-color: var(--color-cyan); color: var(--color-navy); }
.filter-btn.active { background: var(--color-navy); border-color: var(--color-navy); color: var(--color-white); }

/* ---------- Equipment gallery ---------- */
.equip-card { position: relative; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); }
.equip-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.equip-caption { padding: 16px 20px; background: var(--color-white); }
.equip-caption h4 { font-size: 15px; margin: 0; }

/* ---------- Product Detail ---------- */
.gallery-main { border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-gray-200); margin-bottom: 16px; }
.gallery-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.gallery-thumbs img { border-radius: var(--radius-sm); border: 2px solid var(--color-gray-200); cursor: pointer; transition: border-color var(--transition); aspect-ratio: 1/1; object-fit: cover; }
.gallery-thumbs img:hover, .gallery-thumbs img.active { border-color: var(--color-cyan); }

.spec-table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.spec-table tr { border-bottom: 1px solid var(--color-gray-200); }
.spec-table td { padding: 12px 0; font-size: 14px; }
.spec-table td:first-child { color: var(--color-gray-600); font-weight: 500; width: 40%; }
.spec-table td:last-child { color: var(--color-navy); font-weight: 600; }

.check-list li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px; font-size: 15px; color: var(--color-gray-700); }
.check-list svg { color: var(--color-cyan); flex-shrink: 0; margin-top: 3px; width: 18px; height: 18px; }

.price-box {
  background: var(--color-gray-100); border-radius: var(--radius-md); padding: 28px; position: sticky; top: 110px;
}
.price-box h3 { font-size: 20px; }
.price-box .price { font-family: var(--font-heading); font-size: 28px; font-weight: 700; color: var(--color-accent); margin-bottom: 4px; }
.price-box .price-note { font-size: 13px; color: var(--color-gray-600); margin-bottom: 20px; }
.price-box ul { margin-bottom: 24px; }
.price-box li { display: flex; justify-content: space-between; font-size: 14px; padding: 8px 0; border-bottom: 1px dashed var(--color-gray-200); }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
label { display: block; font-family: var(--font-heading); font-weight: 500; font-size: 14px; color: var(--color-navy); margin-bottom: 8px; }
input, select, textarea {
  width: 100%; padding: 13px 16px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-gray-200); font-family: var(--font-body); font-size: 15px;
  background: var(--color-white); transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--color-cyan); box-shadow: 0 0 0 4px rgba(0,168,232,0.12);
}
textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 13px; color: var(--color-gray-600); margin-top: 8px; }
.form-success {
  display: none; background: rgba(0,168,232,0.1); border: 1px solid var(--color-cyan);
  color: var(--color-navy); padding: 16px 20px; border-radius: var(--radius-sm); margin-bottom: 20px; font-size: 14px;
  align-items: center; gap: 10px;
}
.form-success.show { display: flex; }
.form-success svg { width: 20px; height: 20px; color: var(--color-cyan-dark); flex-shrink: 0; }

/* Contact info cards */
.contact-info-card {
  display: flex; gap: 16px; align-items: flex-start; padding: 24px;
  background: var(--color-white); border: 1px solid var(--color-gray-200); border-radius: var(--radius-md);
}
.contact-info-card .feature-icon { background: rgba(255,106,61,0.12); color: var(--color-accent); }
.map-frame { border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-gray-200); }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-navy-dark); color: rgba(255,255,255,0.7); }
.footer-top { padding: 72px 0 48px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; }
.footer-wordmark { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-wordmark img { width: auto; height: 38px; margin: 0; }
.footer-wordmark strong { color: #fff; font-family: var(--font-heading); font-size: 24px; letter-spacing: .08em; }
.footer-about p { font-size: 14px; color: rgba(255,255,255,0.6); }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center; transition: background var(--transition);
}
.footer-social a:hover { background: var(--color-accent); }
.footer-social svg { width: 16px; height: 16px; }
.footer-col h5 { color: var(--color-white); font-size: 15px; margin-bottom: 20px; letter-spacing: 0.5px; text-transform: uppercase; }
.footer-col li { margin-bottom: 12px; font-size: 14px; }
.footer-col a:hover { color: var(--color-cyan); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer-contact svg { width: 16px; height: 16px; color: var(--color-accent); flex-shrink: 0; margin-top: 3px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 22px 0; font-size: 13px; }
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom-links { display: flex; gap: 20px; }

/* Back to top */
.back-to-top {
  position: fixed; right: 24px; bottom: 24px; width: 48px; height: 48px; border-radius: 50%;
  background: var(--color-accent); color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md); border: none; opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all var(--transition); z-index: 400;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top svg { width: 20px; height: 20px; transform: rotate(-90deg); }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-24 { margin-bottom: 24px; }
.mb-40 { margin-bottom: 40px; }

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 38px; }
  .hero-layout { grid-template-columns: 1fr 360px; gap: 34px; }
  .hero-showcase { min-height: 410px; }
  .cta-banner { padding: 40px; }
}

@media (max-width: 768px) {
  .topbar { display: none; }
  .nav-list, .nav-actions .btn { display: none; }
  .nav-toggle { display: flex; align-items: center; justify-content: center; }
  .navbar { height: 72px; }
  .brand img { height: 30px; }
  .brand-name { font-size: 20px; }
  .grid-2, .grid-3, .grid-4, .grid-6 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-layout { display: block; min-height: 0; }
  .hero-inner { padding: 72px 0 32px; }
  .hero h1 { font-size: 30px; }
  .hero-showcase { min-height: 340px; margin-bottom: 56px; }
  .showcase-main { inset: 24px 28px 18px 12px; }
  .showcase-small { width: 92px; height: 92px; }
  .showcase-chip { left: 0; top: 8px; }
  .trust-strip-inner { overflow-x: auto; justify-content: flex-start; min-height: 64px; }
  .trust-strip-inner span { white-space: nowrap; }
  .section { padding: 56px 0; }
  .section-head h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .price-box { position: static; }

  /* Mobile nav drawer */
  .navbar { position: relative; }
  .mobile-nav {
    position: fixed; inset: 0 0 0 auto; width: 84%; max-width: 340px; height: 100vh;
    background: var(--color-white); box-shadow: var(--shadow-lg);
    transform: translateX(100%); transition: transform 0.3s ease; z-index: 600;
    padding: 24px; overflow-y: auto;
  }
  .mobile-nav.open { transform: translateX(0); }
  .mobile-nav-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
  .mobile-brand { display: inline-flex; align-items: center; gap: 10px; }
  .mobile-brand img { width: auto; height: 28px; }
  .mobile-brand strong { color: var(--color-navy); font-family: var(--font-heading); font-size: 18px; letter-spacing: .08em; }
  .mobile-nav ul li a { display: block; padding: 14px 4px; font-family: var(--font-heading); font-weight: 500; color: var(--color-navy); border-bottom: 1px solid var(--color-gray-200); }
  .mobile-nav .btn { margin-top: 20px; }
  .nav-overlay {
    position: fixed; inset: 0; background: rgba(11,37,69,0.5); z-index: 550;
    opacity: 0; visibility: hidden; transition: all var(--transition);
  }
  .nav-overlay.show { opacity: 1; visibility: visible; }
}

@media (min-width: 769px) {
  .mobile-nav, .nav-overlay { display: none; }
}

/* WEIFENG V2 */
.v2-page{--v2-ink:#081b2b;--v2-blue:#0a5cff;--v2-lime:#bdfc45;--v2-paper:#f4f6f8;--v2-line:#dce2e7;font-family:'DM Sans',sans-serif;color:var(--v2-ink);background:#fff}.v2-page h1,.v2-page h2,.v2-page h3{font-family:'Manrope',sans-serif;letter-spacing:-.04em}.v2-page p{color:inherit}.v2-container{width:min(1320px,calc(100% - 64px));margin:auto}.v2-announcement{height:34px;display:flex;justify-content:center;align-items:center;gap:18px;background:var(--v2-lime);color:var(--v2-ink);font-size:12px;font-weight:700;letter-spacing:.03em}.v2-announcement a{text-decoration:underline;text-underline-offset:3px}.v2-header{height:82px;position:sticky;top:0;z-index:900;background:rgba(255,255,255,.96);border-bottom:1px solid var(--v2-line);backdrop-filter:blur(14px)}.v2-nav{height:100%;display:flex;align-items:center;gap:42px}.v2-logo{display:flex;align-items:center;gap:16px;margin-right:auto}.v2-logo img{width:auto;height:38px}.v2-logo span{max-width:76px;font-size:9px;line-height:1.2;font-weight:700;text-transform:uppercase;letter-spacing:.13em;color:#62707d;border-left:1px solid var(--v2-line);padding-left:15px}.v2-navlinks{display:flex;gap:31px;font:600 14px 'DM Sans',sans-serif}.v2-navlinks a{position:relative;padding:31px 0}.v2-navlinks a:after{content:'';position:absolute;left:0;right:100%;bottom:21px;height:2px;background:var(--v2-blue);transition:.25s}.v2-navlinks a:hover:after{right:0}.v2-quote{background:var(--v2-ink);color:#fff;padding:15px 20px;font-weight:700;font-size:13px}.v2-quote span{color:var(--v2-lime);margin-left:13px}.v2-menu{display:none}
.v2-hero{min-height:calc(100vh - 116px);position:relative;display:flex;align-items:flex-end;overflow:hidden;background:#06131e}.v2-hero-image,.v2-hero-shade{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.v2-hero-image{filter:saturate(.72) contrast(1.08)}.v2-hero-shade{background:linear-gradient(90deg,rgba(4,17,29,.96) 0%,rgba(4,17,29,.76) 43%,rgba(4,17,29,.16) 76%),linear-gradient(0deg,rgba(4,17,29,.42),transparent 40%)}.v2-hero-content{position:relative;z-index:2;padding:104px 0 82px;color:#fff}.v2-kicker,.v2-label{font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.v2-kicker{color:var(--v2-lime)!important;margin-bottom:25px}.v2-hero h1{max-width:930px;font-size:clamp(54px,6.6vw,96px);line-height:.98;color:#fff;margin:0 0 28px}.v2-hero h1 em{color:var(--v2-lime);font-style:normal}.v2-hero-copy{max-width:640px;font-size:18px;line-height:1.65;color:rgba(255,255,255,.76)!important}.v2-hero-actions{display:flex;gap:12px;margin-top:34px}.v2-btn{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 24px;font-weight:700;font-size:14px;transition:.25s}.v2-btn:hover{transform:translateY(-2px)}.v2-btn-primary{background:var(--v2-blue);color:#fff;box-shadow:0 12px 30px rgba(10,92,255,.28)}.v2-btn-ghost{color:#fff;border:1px solid rgba(255,255,255,.44)}.v2-hero-meta{display:flex;margin-top:70px}.v2-hero-meta span{padding:0 25px;color:rgba(255,255,255,.7);font-size:12px;font-weight:600;border-left:1px solid rgba(255,255,255,.28)}.v2-hero-meta span:first-child{padding-left:0;border-left:0}.v2-scroll{position:absolute;z-index:3;right:36px;bottom:72px;writing-mode:vertical-rl;color:rgba(255,255,255,.6);font-size:10px;letter-spacing:.15em;text-transform:uppercase}.v2-scroll i{display:inline-block;width:1px;height:56px;background:rgba(255,255,255,.45);margin-top:14px}
.v2-proof{background:var(--v2-lime)}.v2-proof-grid{display:grid;grid-template-columns:repeat(4,1fr)}.v2-proof-grid div{min-height:150px;padding:30px 28px;display:flex;flex-direction:column;justify-content:center;border-right:1px solid rgba(8,27,43,.18)}.v2-proof-grid div:first-child{border-left:1px solid rgba(8,27,43,.18)}.v2-proof strong{font:800 39px 'Manrope',sans-serif;letter-spacing:-.05em}.v2-proof span{max-width:180px;font-size:12px;font-weight:700;line-height:1.35;text-transform:uppercase;letter-spacing:.06em}.v2-section{padding:120px 0}.v2-heading-row{display:grid;grid-template-columns:1.5fr .7fr;gap:80px;align-items:end;margin-bottom:62px}.v2-label{color:var(--v2-blue)!important;margin-bottom:18px!important}.v2-heading-row h2,.v2-quality h2,.v2-company h2{font-size:clamp(40px,4.3vw,64px);line-height:1.03;margin:0;color:var(--v2-ink)}.v2-heading-row>p{font-size:16px;line-height:1.7;color:#5d6974;margin:0}
.v2-cap-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--v2-line);border-left:1px solid var(--v2-line)}.v2-cap{min-height:310px;display:flex;flex-direction:column;padding:32px;border-right:1px solid var(--v2-line);border-bottom:1px solid var(--v2-line);transition:.3s}.v2-cap>span{color:#8c98a3;font:700 12px 'Manrope',sans-serif}.v2-cap h3{margin:65px 0 12px;font-size:25px;color:var(--v2-ink)}.v2-cap p{color:#697580;font-size:14px;line-height:1.65}.v2-cap b{margin-top:auto;font-size:12px;color:var(--v2-blue)}.v2-cap:hover,.v2-cap-featured{background:var(--v2-ink);transform:translateY(-5px);box-shadow:0 20px 45px rgba(8,27,43,.14)}.v2-cap:hover h3,.v2-cap-featured h3{color:#fff}.v2-cap:hover p,.v2-cap-featured p{color:#aeb8c0}.v2-cap:hover>span,.v2-cap-featured>span{color:var(--v2-lime)}
.v2-dark{background:var(--v2-ink);color:#fff}.v2-heading-light h2{color:#fff}.v2-heading-light .v2-label{color:var(--v2-lime)!important}.v2-text-link{color:var(--v2-lime);font-weight:700;align-self:end}.v2-work-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.v2-work{position:relative;min-height:390px;overflow:hidden;background:#142c3e}.v2-work-wide{grid-column:span 2}.v2-work img{position:absolute;width:100%;height:100%;object-fit:cover;transition:.55s}.v2-work:after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(4,17,29,.92),transparent 62%)}.v2-work:hover img{transform:scale(1.035)}.v2-work div{position:absolute;z-index:2;left:26px;right:26px;bottom:24px;color:#fff}.v2-work span{font-size:10px;text-transform:uppercase;color:var(--v2-lime);font-weight:800;letter-spacing:.12em}.v2-work h3{color:#fff;font-size:20px;line-height:1.25;max-width:560px;margin:7px 0 0}
.v2-process{background:var(--v2-paper)}.v2-steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #bdc7cf}.v2-steps article{padding:31px 28px 15px 0;margin-right:28px;border-right:1px solid #bdc7cf}.v2-steps article:last-child{border-right:0}.v2-steps span{display:block;color:var(--v2-blue);font-weight:800;font-size:12px;margin-bottom:75px}.v2-steps h3{font-size:22px}.v2-steps p{color:#64717c;font-size:14px;line-height:1.65}.v2-quality-grid,.v2-company-grid{display:grid;grid-template-columns:1fr 1.12fr;gap:90px;align-items:center}.v2-quality-copy>p:not(.v2-label),.v2-company-copy>p:not(.v2-label){color:#66727d;line-height:1.75;margin:28px 0}.v2-quality-copy ul{margin:28px 0 34px}.v2-quality-copy li{padding:13px 0;border-bottom:1px solid var(--v2-line);font-weight:600;font-size:14px}.v2-quality-copy li:before{content:'✓';color:var(--v2-blue);margin-right:13px}.v2-btn-dark{background:var(--v2-ink);color:#fff}.v2-quality-media{position:relative;min-height:610px}.v2-quality-media img{position:absolute;inset:0;height:100%;object-fit:cover}.v2-cert{position:absolute;left:-42px;bottom:35px;width:220px;padding:25px;background:var(--v2-lime);color:var(--v2-ink)}.v2-cert small,.v2-cert strong{display:block}.v2-cert small{text-transform:uppercase;letter-spacing:.1em;font-size:9px;font-weight:800;margin-bottom:20px}.v2-cert strong{font:800 25px/1.15 'Manrope',sans-serif}
.v2-company{background:#eef2f4}.v2-company-grid{grid-template-columns:1.1fr 1fr}.v2-company-media{position:relative;min-height:570px}.v2-company-media img{position:absolute;inset:0;height:100%;object-fit:cover}.v2-company-media span{position:absolute;left:0;bottom:0;background:var(--v2-ink);color:#fff;padding:15px 21px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.v2-company-stats{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin:35px 0}.v2-company-stats div{padding-top:18px;border-top:1px solid #c4cdd3}.v2-company-stats strong,.v2-company-stats span{display:block}.v2-company-stats strong{font:800 29px 'Manrope',sans-serif}.v2-company-stats span{margin-top:7px;color:#6c7882;font-size:12px;line-height:1.45}.v2-text-dark{color:var(--v2-blue)}.v2-cta{padding:85px 0;background:var(--v2-blue);color:#fff}.v2-cta-grid{display:grid;grid-template-columns:1fr auto;align-items:center;gap:80px}.v2-cta .v2-label{color:var(--v2-lime)!important}.v2-cta h2{color:#fff;font-size:58px;margin:0 0 12px}.v2-cta p:not(.v2-label){color:rgba(255,255,255,.75);max-width:680px;margin:0}.v2-btn-white{background:#fff;color:var(--v2-ink);min-width:270px}
.v2-footer{background:#06131e;color:#fff;padding:75px 0 0}.v2-footer-grid{display:grid;grid-template-columns:1.6fr .8fr .7fr 1.3fr;gap:70px;padding-bottom:62px}.v2-footer-brand img{width:auto;height:42px;margin-bottom:22px}.v2-footer p{color:#8d9ba7;font-size:13px;line-height:1.65}.v2-footer h3{color:#fff;font-size:12px;text-transform:uppercase;letter-spacing:.1em;margin-bottom:22px}.v2-footer a{display:block;color:#a8b4bd;font-size:13px;margin:11px 0}.v2-footer a:hover{color:var(--v2-lime)}.v2-footer-bottom{border-top:1px solid #1b3040;padding:23px 0;display:flex;justify-content:space-between;color:#71818e;font-size:11px}
@media(max-width:960px){.v2-navlinks{display:none}.v2-menu{display:block;border:0;background:none;width:34px}.v2-menu span{display:block;height:2px;background:var(--v2-ink);margin:7px}.v2-heading-row{grid-template-columns:1fr;gap:20px}.v2-cap-grid,.v2-proof-grid{grid-template-columns:repeat(2,1fr)}.v2-work-grid{grid-template-columns:1fr 1fr}.v2-steps{grid-template-columns:repeat(2,1fr)}.v2-quality-grid,.v2-company-grid{grid-template-columns:1fr;gap:50px}.v2-quality-media,.v2-company-media{min-height:500px}.v2-footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:960px){.v2-navlinks.is-open{display:flex;position:absolute;left:0;right:0;top:100%;padding:22px 32px;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--v2-line);box-shadow:0 20px 35px rgba(8,27,43,.12)}.v2-navlinks.is-open a{padding:13px 0}}
@media(max-width:640px){.v2-container{width:min(100% - 36px,1320px)}.v2-announcement{font-size:9px;gap:8px}.v2-header{height:68px}.v2-logo img{height:31px}.v2-logo span,.v2-quote{display:none}.v2-hero{min-height:720px}.v2-hero-content{padding:90px 0 54px}.v2-hero h1{font-size:47px}.v2-hero-copy{font-size:16px}.v2-hero-actions{flex-direction:column;align-items:stretch}.v2-hero-meta{flex-direction:column;gap:10px;margin-top:38px}.v2-hero-meta span{border:0;padding:0}.v2-scroll{display:none}.v2-proof-grid,.v2-cap-grid,.v2-work-grid,.v2-steps,.v2-company-stats,.v2-cta-grid,.v2-footer-grid{grid-template-columns:1fr}.v2-proof-grid div{min-height:105px;border-bottom:1px solid rgba(8,27,43,.18)}.v2-section{padding:78px 0}.v2-heading-row{margin-bottom:40px}.v2-heading-row h2,.v2-quality h2,.v2-company h2{font-size:38px}.v2-cap{min-height:260px}.v2-cap h3{margin-top:40px}.v2-work,.v2-work-wide{grid-column:auto;min-height:330px}.v2-steps article{border-right:0;border-bottom:1px solid #bdc7cf}.v2-steps span{margin-bottom:30px}.v2-quality-media,.v2-company-media{min-height:360px}.v2-cert{left:0;bottom:0}.v2-cta h2{font-size:42px}.v2-footer-bottom{flex-direction:column}.v2-footer-grid{gap:34px}}

/* Weifeng brand lockup using the supplied WF artwork. */
.v2-logo{gap:12px}
.v2-logo img{height:34px}
.v2-logo strong{font-family:'Manrope',sans-serif;font-size:23px;letter-spacing:.08em;color:var(--v2-ink)}
.v2-logo span{margin-left:4px}
.v2-footer-wordmark{display:inline-flex;align-items:center;gap:12px;margin-bottom:22px}
.v2-footer-wordmark img{height:36px;margin:0}
.v2-footer-wordmark strong{font-family:'Manrope',sans-serif;font-size:23px;letter-spacing:.08em;color:#fff}
@media(max-width:640px){.v2-logo{gap:9px}.v2-logo img{height:27px}.v2-logo strong{font-size:18px}}