/* ============================================================
   IMEXHOME — Global Stylesheet
   Brand: IMEXHOME  |  Primary: #0F4C81 (industrial blue)
   ============================================================ */
:root {
  --brand: #0F4C81;
  --brand-dark: #0A3A66;
  --brand-soft: #EAF1F8;
  --ink: #1a1a1a;
  --ink-soft: #555;
  --ink-mute: #888;
  --line: #e8e8e8;
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --blue: #0693e3;
  --radius: 6px;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.12);
  --maxw: 1200px;
  --font: "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--ink);
  color: #ccc;
  font-size: 13px;
}
.topbar-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 7px 24px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.topbar a { color: #eee; }
.topbar a:hover { color: var(--brand); }
.topbar .sep { color: #555; margin: 0 8px; }
.topbar .tb-left, .topbar .tb-right { display: flex; align-items: center; gap: 6px; }
.topbar svg { vertical-align: -2px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  height: 78px;
}
.logo { flex-shrink: 0; }
.logo img { height: 48px; width: auto; display: block; }
.nav-group { display: flex; align-items: center; gap: 30px; flex: 1; }
.nav-left { justify-content: flex-start; }
.nav-right { justify-content: flex-end; }
.nav-group a {
  font-size: 14px; font-weight: 600; letter-spacing: 1.1px; text-transform: uppercase;
  color: var(--ink); position: relative; padding: 6px 0; white-space: nowrap;
}
.nav-group a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--brand); transition: width .25s;
}
.nav-group a:hover::after, .nav-group a.active::after { width: 100%; }
.nav-group a.active { color: var(--brand); }
.nav-cta {
  background: var(--brand); color: #fff; padding: 10px 20px; border-radius: 4px;
  font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase;
  transition: background .2s; flex-shrink: 0;
}
.nav-group a.nav-cta { color: #fff; }
.nav-group a.nav-cta::after { display: none; }
.nav-cta:hover { background: var(--brand-dark); }
.nav-group a.nav-cta:hover { color: #fff; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: 0; }
.hamburger span { width: 26px; height: 2px; background: var(--ink); display: block; }

/* Mobile menu */
.mobile-menu {
  display: none; flex-direction: column;
  padding: 10px 24px 20px; border-top: 1px solid var(--line); background: #fff;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 13px 0; font-size: 15px; font-weight: 600; letter-spacing: 1px;
  text-transform: uppercase; color: var(--ink); border-bottom: 1px solid var(--line);
}
.mobile-menu a.active { color: var(--brand); }

/* ---------- Hero ---------- */
.hero {
  position: relative; background: var(--ink); color: #fff; overflow: hidden;
  min-height: 620px; display: flex; align-items: center;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .82; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(10,10,10,.74) 0%, rgba(10,10,10,.30) 55%, rgba(241,137,46,.12) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; padding: 80px 24px; }

/* Hero slideshow */
.hero-bg .hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 1.1s ease;
}
.hero-bg .hero-slide.active { opacity: 1; }
.hero-bg .hero-slide img { width: 100%; height: 100%; object-fit: cover; opacity: .82; display: block; }
.hero-dots {
  position: absolute; z-index: 3; left: 0; right: 0; bottom: 28px;
  display: flex; justify-content: center; gap: 12px;
}
.hero-dots button {
  width: 46px; height: 4px; border: 0; padding: 0; cursor: pointer;
  background: rgba(255,255,255,.35); transition: background .25s, transform .25s;
}
.hero-dots button:hover { background: rgba(255,255,255,.7); }
.hero-dots button.active { background: var(--brand); transform: scaleY(1.6); }
.hero-arrow {
  position: absolute; z-index: 3; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%; cursor: pointer;
  background: rgba(0,0,0,.32); border: 1px solid rgba(255,255,255,.35); color: #fff;
  font-size: 20px; line-height: 1; display: flex; align-items: center; justify-content: center;
  transition: background .2s, border-color .2s;
}
.hero-arrow:hover { background: var(--brand); border-color: var(--brand); }
.hero-arrow.prev { left: 22px; }
.hero-arrow.next { right: 22px; }
.hero-caption {
  position: absolute; z-index: 3; right: 34px; bottom: 30px;
  font-size: 12.5px; letter-spacing: 1.6px; text-transform: uppercase;
  color: rgba(255,255,255,.72); border-left: 2px solid var(--brand); padding-left: 10px;
}
@media (max-width: 760px) {
  .hero-arrow { display: none; }
  .hero-caption { display: none; }
  .hero h1 { font-size: 34px; }
}
.hero-eyebrow {
  display: inline-block; color: var(--brand); font-size: 13px; font-weight: 700;
  letter-spacing: 3px; text-transform: uppercase; margin-bottom: 20px;
}
.hero h1 { font-size: 52px; line-height: 1.15; font-weight: 800; max-width: 720px; margin-bottom: 22px; }
.hero h1 span { color: var(--brand); }
.hero p { font-size: 18px; color: #d5d5d5; max-width: 600px; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 14px 30px; border-radius: 4px; font-size: 14px;
  font-weight: 700; letter-spacing: 1px; text-transform: uppercase; cursor: pointer;
  transition: all .2s; border: 0;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.5); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head h2 {
  font-size: 36px; font-weight: 800; letter-spacing: .5px; margin-bottom: 14px; color: var(--ink);
}
.section-head .kicker {
  display: inline-block; color: var(--brand); font-size: 13px; font-weight: 700;
  letter-spacing: 3px; text-transform: uppercase; margin-bottom: 12px;
}
.section-head p { color: var(--ink-soft); font-size: 16px; }

/* ---------- Category quick links ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cat-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 22px; text-align: center; transition: all .25s; display: block;
}
.cat-card:hover { border-color: var(--brand); box-shadow: var(--shadow); transform: translateY(-4px); }
.cat-card .cat-icon { font-size: 34px; margin-bottom: 12px; }
.cat-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.cat-card p { font-size: 13px; color: var(--ink-mute); }
.cat-card .count { color: var(--brand); font-weight: 700; }

/* ---------- Product cards ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  display: block;
  background: #fff; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); transition: all .25s;
}
.product-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.product-card .thumb { height: 220px; overflow: hidden; background: #f0f0f0; }
.product-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.product-card:hover .thumb img { transform: scale(1.06); }
.product-card .body { padding: 20px; }
.product-card .body h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.product-card .body p { font-size: 14px; color: var(--ink-soft); margin-bottom: 14px; }
.product-card .tag {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; color: var(--brand); background: var(--brand-soft);
  padding: 3px 10px; border-radius: 20px;
}

/* ---------- Feature / why ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature {
  background: #fff; border-radius: var(--radius); padding: 34px 28px;
  border: 1px solid var(--line); text-align: center;
}
.feature .f-icon { font-size: 40px; margin-bottom: 14px; }
.feature h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature p { font-size: 14px; color: var(--ink-soft); }

/* ---------- Stats / number wall ---------- */
.stats {
  background: linear-gradient(120deg, #141414 0%, #2a1505 100%);
  color: #fff; padding: 72px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat .num { font-size: 52px; font-weight: 800; color: var(--brand); line-height: 1; margin-bottom: 8px; }
.stat .label { font-size: 14px; color: #bbb; text-transform: uppercase; letter-spacing: 1.5px; }

/* ---------- Project cards ---------- */
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project-card {
  position: relative; border-radius: var(--radius); overflow: hidden; height: 300px;
  display: block;
}
.project-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.project-card:hover img { transform: scale(1.07); }
.project-card .overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.85) 0%, rgba(0,0,0,.15) 60%, transparent 100%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 24px;
}
.project-card .overlay .tag { color: var(--brand); font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 6px; }
.project-card .overlay h3 { color: #fff; font-size: 20px; font-weight: 700; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--brand); color: #fff; padding: 64px 0; text-align: center; }
.cta-band h2 { font-size: 34px; font-weight: 800; margin-bottom: 14px; }
.cta-band p { font-size: 16px; opacity: .92; margin-bottom: 28px; }
.cta-band .btn { background: #fff; color: var(--brand-dark); }
.cta-band .btn:hover { background: var(--ink); color: #fff; }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 6px; color: var(--ink-soft); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 4px;
  font-size: 15px; font-family: inherit; background: #fff; transition: border .2s;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--brand); }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: 13px; color: var(--ink-mute); margin-top: 12px; }

/* ---------- Contact info ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; }
.info-item { display: flex; gap: 16px; margin-bottom: 26px; }
.info-item .ico {
  width: 48px; height: 48px; border-radius: 8px; background: var(--brand-soft);
  color: var(--brand); display: flex; align-items: center; justify-content: center;
  font-size: 22px; flex-shrink: 0;
}
.info-item h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.info-item p { font-size: 15px; color: var(--ink-soft); }

/* ---------- Page hero (subpages) ---------- */
.page-hero { background: var(--ink); color: #fff; padding: 72px 0; position: relative; overflow: hidden; }
.page-hero .kicker { color: var(--brand); font-size: 13px; letter-spacing: 3px; text-transform: uppercase; font-weight: 700; margin-bottom: 12px; }
.page-hero h1 { font-size: 44px; font-weight: 800; margin-bottom: 14px; }
.page-hero p { color: #ccc; max-width: 640px; font-size: 17px; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { font-size: 13px; color: var(--ink-mute); padding: 16px 0; }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb span { margin: 0 6px; color: #ccc; }

/* ---------- Footer ---------- */
.site-footer { background: #141414; color: #999; padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-grid .f-brand img { height: 32px; margin-bottom: 16px; }
.footer-grid .f-brand p { font-size: 14px; color: #777; max-width: 280px; }
.footer-grid h4 { color: #fff; font-size: 14px; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 18px; }
.footer-grid ul li { margin-bottom: 10px; }
.footer-grid ul li a { color: #999; font-size: 14px; }
.footer-grid ul li a:hover { color: var(--brand); }
.footer-bottom {
  border-top: 1px solid #2a2a2a; padding: 22px 0;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  font-size: 13px; color: #666;
}
.footer-bottom a { color: #888; }
.footer-bottom a:hover { color: var(--brand); }

/* ---------- WhatsApp float ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 200;
  width: 56px; height: 56px; border-radius: 50%; background: #25D366; color: #fff;
  display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(0,0,0,.25);
}
.wa-float svg { width: 30px; height: 30px; }

/* ---------- Product detail page ---------- */
.product-detail {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: start;
  padding: 16px 0 48px;
}
.pd-main {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: #f0f0f0;
}
.pd-main img { width: 100%; height: 440px; object-fit: cover; }
.pd-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.g-thumb {
  width: 86px; height: 64px; border-radius: 4px; overflow: hidden; cursor: pointer;
  border: 2px solid transparent; opacity: .68; transition: all .2s;
}
.g-thumb img { width: 100%; height: 100%; object-fit: cover; }
.g-thumb:hover { opacity: 1; }
.g-thumb.active { border-color: var(--brand); opacity: 1; }

.pd-info .tag { margin-bottom: 14px; }
.pd-info h2 { font-size: 30px; font-weight: 800; margin-bottom: 14px; }
.pd-desc { font-size: 16px; color: var(--ink-soft); margin-bottom: 24px; line-height: 1.7; }
.pd-specs { margin-bottom: 26px; }
.pd-specs h3 { font-size: 14px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 12px; }
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.spec {
  background: var(--bg-soft); border-radius: 6px; padding: 12px 14px;
  display: flex; flex-direction: column; gap: 2px;
}
.spec-label { font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: var(--ink-mute); }
.spec-value { font-size: 15px; font-weight: 700; color: var(--ink); }

.pd-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.pd-btn-outline { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.pd-btn-outline:hover { border-color: var(--brand); color: var(--brand); }

.pd-images { margin: 40px 0 72px; }
.pd-gallery-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.pd-gimg { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #f0f0f0; }
.pd-gimg img { width: 100%; height: 340px; object-fit: cover; }

/* ---------- Product detail: description / features / models ---------- */
.pd-h { font-size: 22px; font-weight: 800; margin-bottom: 18px; }
.pd-desc-block { margin: 40px 0; }
.pd-desc-block p { color: var(--ink-soft); line-height: 1.9; font-size: 15px; }

.pd-features { margin: 40px 0; }
.pd-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pd-feature {
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px;
}
.pd-feature h4 { font-size: 16px; font-weight: 700; color: var(--brand-dark); margin-bottom: 10px; }
.pd-feature p { font-size: 14px; color: var(--ink-soft); line-height: 1.7; }

.pd-models { margin: 40px 0; }
.model-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.model-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 860px; }
.model-table th {
  background: #1a1a1a; color: #fff; text-align: left; padding: 12px 14px;
  font-weight: 700; font-size: 12px; letter-spacing: .5px; text-transform: uppercase; white-space: nowrap;
}
.model-table td { padding: 12px 14px; border-top: 1px solid var(--line); color: var(--ink-soft); vertical-align: top; }
.model-table tbody tr:nth-child(even) { background: #fafafa; }
.model-table tbody tr:hover { background: var(--brand-soft); }

/* ---------- Project case detail ---------- */
.case-hero { position: relative; height: 420px; overflow: hidden; display: flex; align-items: flex-end; }
.case-hero-bg { position: absolute; inset: 0; }
.case-hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.case-hero .hero-overlay { background: linear-gradient(to top, rgba(0,0,0,.8) 0%, rgba(0,0,0,.25) 60%, transparent 100%); }
.case-hero-content { position: relative; z-index: 2; width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px 48px; }
.case-hero-content h1 { color: #fff; font-size: 40px; font-weight: 800; }
.case-hero-content .kicker { color: var(--brand); font-size: 13px; letter-spacing: 3px; text-transform: uppercase; font-weight: 700; margin-bottom: 12px; }

.case-article { max-width: 900px; margin: 0 auto; padding: 48px 0 72px; }
.case-section { margin-bottom: 44px; }
.case-section p { color: var(--ink-soft); line-height: 1.9; font-size: 15px; margin-bottom: 14px; }

.case-overview { margin-bottom: 44px; }
.overview-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.overview-table td { padding: 14px 18px; border-top: 1px solid var(--line); font-size: 14px; }
.overview-table td.ok { width: 200px; font-weight: 700; color: var(--ink); background: var(--bg-soft); white-space: nowrap; }
.overview-table td { color: var(--ink-soft); }

.case-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 8px; }
.case-point { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.case-point h4 { font-size: 15px; font-weight: 700; color: var(--brand-dark); margin-bottom: 8px; }
.case-point p { font-size: 14px; color: var(--ink-soft); margin-bottom: 0; }

.testimonial {
  border-left: 4px solid var(--brand); background: var(--brand-soft);
  padding: 22px 26px; border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic; color: var(--ink-soft); line-height: 1.8; font-size: 15px;
}

.faq { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; }
.faq summary { cursor: pointer; padding: 16px 20px; font-weight: 700; font-size: 15px; color: var(--ink); background: #fff; }
.faq summary:hover { color: var(--brand-dark); }
.faq[open] summary { border-bottom: 1px solid var(--line); }
.faq p { padding: 16px 20px; font-size: 14px; color: var(--ink-soft); margin-bottom: 0; }

/* ---------- Project card hover CTA ---------- */
.project-card .thumb { position: absolute; inset: 0; }
.project-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.project-card:hover .thumb img { transform: scale(1.07); }
.project-card .view-more {
  display: inline-block; margin-top: 10px; color: #fff; font-size: 13px; font-weight: 700;
  opacity: 0; transform: translateY(6px); transition: all .3s;
}
.project-card:hover .view-more { opacity: 1; transform: translateY(0); }

/* ---------- Customization process ---------- */
.process-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.process-step { text-align: center; padding: 26px 18px; border: 1px solid var(--line); border-radius: var(--radius); }
.ps-num { display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: 1px; color: var(--brand); background: var(--brand-soft); padding: 4px 12px; border-radius: 20px; margin-bottom: 14px; }
.process-step h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--ink-soft); }

.oem-list { list-style: none; max-width: 720px; margin: 0 auto; }
.oem-list li {
  padding: 16px 20px; margin-bottom: 12px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); font-size: 15px; color: var(--ink-soft); font-weight: 600;
  display: flex; align-items: center; gap: 12px;
}
.oem-list li::before { content: "✓"; color: var(--brand); font-weight: 800; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .nav { position: relative; }
  .nav-group { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }
  .logo { position: absolute; left: 50%; transform: translateX(-50%); }
  .logo img { height: 40px; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid, .feature-grid, .project-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 38px; }
  .product-detail { grid-template-columns: 1fr; }
  .pd-feature-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .case-points { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hamburger { display: flex; }
  .topbar .tb-right { display: none; }
  .cat-grid, .product-grid, .feature-grid, .project-grid, .stats-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .section { padding: 60px 0; }
  .page-hero h1 { font-size: 34px; }
  .pd-main img { height: 280px; }
  .pd-gallery-grid { grid-template-columns: 1fr; }
  .pd-gimg img { height: 240px; }
  .spec-grid { grid-template-columns: 1fr 1fr; }
  .pd-feature-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .case-hero { height: 300px; }
  .case-hero-content h1 { font-size: 28px; }
  .overview-table td.ok { width: 130px; }
}

/* ============================================================
   IMEXHOME — add-ons (v1)
   ============================================================ */
/* Image placeholder (replace with real photos) */
.ph {
  background: linear-gradient(135deg, #dfe6ee 0%, #c9d6e2 100%);
  border: 1px dashed #9fb3c8;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #5a6b7d;
  font-size: 13px;
  padding: 20px;
  min-height: 160px;
}
.ph-lg { min-height: 320px; }
.ph-hero { position:absolute; inset:0; background: linear-gradient(135deg,#20364d 0%,#0F4C81 60%,#0A3A66 100%); }

/* Grid helpers */
.grid-2 { display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.grid-4 { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
@media (max-width:900px){ .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);} }
@media (max-width:620px){ .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;} }

/* Spec list */
.spec-list { display:grid; grid-template-columns:180px 1fr; gap:8px 20px; font-size:15px; }
.spec-list dt { color: var(--ink-mute); }
.spec-list dd { margin:0; }
@media (max-width:620px){ .spec-list{grid-template-columns:1fr;} .spec-list dd{margin-bottom:10px;} }

/* Price band */
.price-band { display:flex; flex-wrap:wrap; gap:16px; align-items:center; justify-content:space-between; background:var(--brand-soft); border-left:4px solid var(--brand); padding:18px 22px; border-radius:var(--radius); }
.price-band strong { font-size:20px; color:var(--brand-dark); }

/* Bullet list */
ul.ticks { list-style:none; }
ul.ticks li { position:relative; padding-left:26px; margin-bottom:10px; }
ul.ticks li::before { content:"✓"; position:absolute; left:0; color:var(--brand); font-weight:700; }

/* ---------- Model spec cards ---------- */
.model-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.model-grid.cols-2 { grid-template-columns:repeat(2,1fr); }
.model-card { background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:24px; display:flex; flex-direction:column; }
.model-card .mc-tag { display:inline-block; font-size:11px; font-weight:700; letter-spacing:1.5px; text-transform:uppercase; color:var(--brand); background:var(--brand-soft); border-radius:20px; padding:4px 12px; margin-bottom:12px; align-self:flex-start; }
.model-card h3 { font-size:19px; margin-bottom:6px; }
.model-card .mc-sub { color:var(--ink-mute); font-size:13px; margin-bottom:14px; }
.model-card dl { margin:0 0 14px; }
.model-card dl div { display:flex; justify-content:space-between; gap:12px; padding:7px 0; border-top:1px dashed var(--line); font-size:13px; }
.model-card dt { color:var(--ink-mute); white-space:nowrap; }
.model-card dd { color:var(--ink); font-weight:600; text-align:right; }
.model-card .mc-cta { margin-top:auto; }
@media (max-width:960px){ .model-grid, .model-grid.cols-2 { grid-template-columns:1fr; } }

/* Note box */
.note-box { background:#fff8e6; border:1px solid #f0d9a0; border-radius:var(--radius); padding:14px 18px; font-size:14px; color:#7a5b12; }

/* ---------- v2: real-image helpers ---------- */
.cat-card img.cc-img { width:100%; height:170px; object-fit:cover; border-radius:4px; margin-bottom:14px; }
.grid-img { width:100%; height:100%; object-fit:cover; border-radius:var(--radius); border:1px solid var(--line); display:block; }
.img-note { font-size:12.5px; color:var(--ink-mute); margin-top:8px; }
.layout-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.layout-grid figure { margin:0; }
.layout-grid img { width:100%; height:220px; object-fit:cover; border-radius:var(--radius); border:1px solid var(--line); }
.layout-grid figcaption { font-size:13px; color:var(--ink-soft); margin-top:8px; text-align:center; }
@media (max-width:900px){ .layout-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:620px){ .layout-grid{grid-template-columns:1fr;} }
.case-band { background:var(--bg-soft); border:1px solid var(--line); border-radius:var(--radius); padding:24px 26px; display:flex; gap:28px; flex-wrap:wrap; }
.case-band .cb-item { flex:1 1 180px; }
.case-band .cb-num { font-size:30px; font-weight:800; color:var(--brand-dark); line-height:1.2; }
.case-band .cb-label { font-size:13px; color:var(--ink-soft); }

/* Style gallery (Zeyu real photos) */
.style-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.style-card { background:#fff; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; display:flex; flex-direction:column; }
.style-card img { width:100%; height:200px; object-fit:cover; display:block; }
.style-card .sc-body { padding:14px 16px 16px; display:flex; flex-direction:column; flex:1; }
.style-card h3 { font-size:15px; margin:0 0 4px; }
.style-card .sc-note { font-size:12.5px; color:var(--ink-mute); margin:0 0 10px; }
.style-card .sc-specs { font-size:12px; color:var(--ink-soft); margin-top:auto; border-top:1px dashed var(--line); padding-top:8px; display:flex; flex-wrap:wrap; gap:4px 14px; }
.gal-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; }
.gal-grid img { width:100%; height:180px; object-fit:cover; border-radius:10px; display:block; }
.gal-grid.cols-3 { grid-template-columns:repeat(3,1fr); }
@media (max-width:900px){ .style-grid,.gal-grid { grid-template-columns:repeat(2,1fr); } .gal-grid.cols-3{grid-template-columns:1fr;} }
.model-card .mc-img { width:100%; height:210px; object-fit:cover; border-radius:10px; margin-bottom:14px; display:block; }