/* =============================================
   德裕新塑胶 / Deyuxin Plastics
   Main Stylesheet — Red · Blue · White Theme
   ============================================= */

/* ---------- CSS Variables ---------- */
:root {
  --red:      #C8102E;
  --red-dark: #9E0B23;
  --red-light:#F5D0D7;
  --blue:     #003087;
  --blue-mid: #1A4FA0;
  --blue-light:#E8EDF8;
  --white:    #FFFFFF;
  --gray-100: #F7F8FA;
  --gray-200: #EAEDF2;
  --gray-500: #7A8499;
  --gray-700: #3D4456;
  --gray-900: #1A1E2C;

  --font-cn: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-en: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  --shadow-sm: 0 2px 8px rgba(0,48,135,0.08);
  --shadow-md: 0 8px 30px rgba(0,48,135,0.12);
  --shadow-lg: 0 20px 60px rgba(0,48,135,0.18);
  --radius:   12px;
  --radius-lg:20px;
  --transition:0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-cn);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---------- Typography ---------- */
h1,h2,h3,h4 { line-height: 1.3; font-weight: 700; }
.lang-en h1,.lang-en h2,.lang-en h3,.lang-en h4,
.lang-en p,.lang-en span,.lang-en a,.lang-en li,
.lang-en .btn,.lang-en .nav-link { font-family: var(--font-en); }

/* ---------- Bilingual Display ---------- */

/* Default: show both zh and en */
.zh { display: block; }
.en {
  display: block;
  font-size: 0.82em;
  opacity: 0.6;
  margin-top: 2px;
  font-family: var(--font-en);
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0.01em;
}
span.zh { display: inline; }
span.en {
  display: block;
  font-size: 0.78em;
  opacity: 0.58;
  margin-top: 1px;
  font-family: var(--font-en);
  font-weight: 400;
  line-height: 1.3;
}

/* ---------- English-only mode ---------- */
/* When lang=en: hide all .zh, show .en at normal size/opacity */
body.lang-en .zh { display: none !important; }
body.lang-en span.zh { display: none !important; }
body.lang-en .en {
  display: block;
  font-size: inherit;
  opacity: 1;
  margin-top: 0;
  font-family: var(--font-en);
}
body.lang-en span.en {
  display: inline;
  font-size: inherit;
  opacity: 1;
  margin-top: 0;
  font-family: var(--font-en);
}
/* Show lang toggle again */
body .lang-toggle { display: flex; }

/* ---- Specific overrides for cleaner look in each context ---- */

/* Nav links: Chinese / English on same line, comfortable size */
.nav-link { line-height: 1.6; text-align: center; white-space: nowrap; }
.nav-link span.zh {
  display: inline;
  font-size: 0.95rem;
  font-weight: 600;
  opacity: 1;
}
.nav-link span.zh::after { content: ' / '; opacity: 0.35; font-weight: 400; }
.nav-link span.en {
  display: inline;
  font-size: 0.88rem;
  opacity: 0.65;
  margin: 0;
  font-family: var(--font-en);
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* Nav CTA & Buttons: same line zh / en */
.nav-cta { line-height: 1.6; text-align: center; white-space: nowrap; }
.nav-cta span.zh { display: inline; font-size: 0.92rem; opacity: 1; margin: 0; font-weight: 600; }
.nav-cta span.zh::after { content: ' / '; opacity: 0.5; font-weight: 400; }
.nav-cta span.en { display: inline; font-size: 0.85rem; opacity: 0.88; margin: 0; font-family: var(--font-en); font-weight: 500; }

.btn { line-height: 1.6; flex-direction: row; gap: 6px; white-space: nowrap; }
.btn span.zh { display: inline; font-size: 1em; opacity: 1; margin: 0; font-weight: 600; }
.btn span.zh::after { content: ' / '; opacity: 0.5; font-weight: 400; }
.btn span.en { display: inline; font-size: 0.88em; opacity: 0.85; margin: 0; font-family: var(--font-en); font-weight: 500; }

/* Mobile menu nav links */
.mobile-menu .nav-link span.zh,
.mobile-menu .nav-link span.en { display: inline; opacity: 1; margin: 0; font-size: inherit; }
.mobile-menu .nav-link span.zh::after { content: ' / '; opacity: 0.4; }

/* Logo text: keep compact */
.logo-name span.zh,
.logo-name span.en { display: inline; font-size: inherit; opacity: 1; margin: 0; }
.logo-name span.zh::after { content: ' '; }

/* Breadcrumb: inline */
.breadcrumb span.zh,
.breadcrumb span.en,
.breadcrumb a span.zh,
.breadcrumb a span.en { display: inline; font-size: inherit; opacity: 1; margin: 0; }
.breadcrumb span.zh::after,
.breadcrumb a span.zh::after { content: ' / '; opacity: 0.5; font-size: 0.85em; }

/* Hero badge: zh one line, en next line */
.hero-badge { flex-direction: column; gap: 2px; text-align: center; }

/* ---------- Mobile: Only show Chinese in Chinese mode (hide English) ---------- */
@media (max-width: 768px) {
  /* Hide all English text when in Chinese mode */
  body:not(.lang-en) span.en,
  body:not(.lang-en) p.en,
  body:not(.lang-en) div.en-text,
  body:not(.lang-en) .hero-badge span.en {
    display: none !important;
  }
  
  /* Reset layout for items that were column/flex to center zh only */
  body:not(.lang-en) .hero-badge {
    flex-direction: row !important;
    justify-content: center;
    text-align: center;
    padding: 6px 12px;
    font-size: 0.75rem;
    gap: 4px;
    width: fit-content;
    margin: 0 auto 15px;
  }

  /* 2. 主营产品：从一排两个改成一排一个横向的长方形 (上图下文) */
  body:not(.lang-en) .prod-grid {
    grid-template-columns: 1fr !important;
    gap: 25px;
  }

  body:not(.lang-en) .prod-card {
    display: flex;
    flex-direction: column;
    height: auto;
    border-radius: 12px;
  }

  body:not(.lang-en) .prod-img {
    aspect-ratio: 16 / 9 !important; /* 标准宽屏长方形比例 */
    width: 100%;
    height: auto;
  }

  body:not(.lang-en) .prod-body {
    padding: 20px;
    text-align: left;
  }

  body:not(.lang-en) .prod-body h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
  }

  body:not(.lang-en) .prod-body p {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  body:not(.lang-en) .adv-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px;
  }

  body:not(.lang-en) .adv-card {
    padding: 20px 10px;
  }

  body:not(.lang-en) .adv-card h3 {
    font-size: 0.9rem;
    margin-bottom: 5px;
  }

  body:not(.lang-en) .adv-card p {
    font-size: 0.75rem;
    line-height: 1.4;
  }

  body:not(.lang-en) .hero h1 {
    font-size: 1.7rem !important;
    line-height: 1.2;
    margin-bottom: 12px;
  }

  body:not(.lang-en) .hero p {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  body:not(.lang-en) .section-title h2 {
    font-size: 1.6rem;
  }
}
.hero-badge span.zh { display: block; font-size: 0.88rem; opacity: 1; margin: 0; line-height: 1.4; }
.hero-badge span.en { display: block; font-size: 0.78rem; opacity: 0.75; margin: 0; font-family: var(--font-en); font-weight: 400; line-height: 1.3; }

/* Hero product items: keep compact */
.hero-product-item .name span.zh,
.hero-product-item .name span.en { display: inline; font-size: inherit; opacity: 1; margin: 0; }
.hero-product-item .name span.zh::after { content: '\A'; white-space: pre; }
.hero-product-item .name span.en { display: block; font-size: 0.75em; opacity: 0.65; margin-top: 1px; }

/* Float badges: inline */
.hero-float-badge .badge-text span.zh,
.hero-float-badge .badge-text span.en { display: inline; font-size: inherit; opacity: 1; margin: 0; }
.hero-float-badge .badge-text span.zh::after { content: ' '; }

/* Hero stat labels */
.hero-stat .label span.zh { display: inline; }
.hero-stat .label span.en { display: block; font-size: 0.82em; opacity: 0.65; margin-top: 0; }

/* Hero buttons – already handled by .btn rule above */

/* Section title: zh big, en smaller below */
.section-title h2 .zh { display: inline; }
.section-title h2 .en { display: block; font-size: 0.52em; opacity: 0.55; margin-top: 4px; letter-spacing: 0.05em; font-weight: 500; }
.section-title .subtitle .zh { display: inline; }
.section-title .subtitle .en { display: block; font-size: 0.88em; opacity: 0.7; margin-top: 2px; }

/* Advantage cards */
.adv-card h3 .zh { display: inline; }
.adv-card h3 .en { display: block; font-size: 0.72em; opacity: 0.6; margin-top: 2px; font-weight: 500; }

/* Product cards */
.prod-cat .zh { display: inline; }
.prod-cat .en { display: inline; font-size: inherit; opacity: 1; margin: 0; }
.prod-cat .zh::after { content: ' / '; opacity: 0.5; }

.prod-body h3 .zh { display: inline; }
.prod-body h3 .en { display: block; font-size: 0.82em; opacity: 0.58; margin-top: 2px; font-weight: 400; }

.prod-body p .zh { display: inline; }
.prod-body p .en { display: block; font-size: 0.9em; opacity: 0.65; margin-top: 4px; }

/* Prod tags: inline */
.prod-tag span.zh, .prod-tag span.en,
.prod-full-tag span.zh, .prod-full-tag span.en { display: inline; font-size: inherit; opacity: 1; margin: 0; }
.prod-tag span.zh::after,
.prod-full-tag span.zh::after { content: '/'; opacity: 0.5; margin: 0 1px; }

/* About strip */
.about-text h2 .zh { display: inline; }
.about-text h2 .en { display: block; font-size: 0.55em; opacity: 0.65; margin-top: 4px; font-weight: 500; letter-spacing: 0.03em; }
.about-text p .zh { display: inline; }
.about-text p .en { display: block; font-size: 0.9em; opacity: 0.7; margin-top: 6px; line-height: 1.7; }

/* Metric cards */
.metric-card .lbl .zh { display: inline; }
.metric-card .lbl .en { display: block; font-size: 0.85em; opacity: 0.7; margin-top: 1px; }

/* Cert items */
.cert-name .zh { display: inline; }
.cert-name .en { display: inline; font-size: inherit; opacity: 1; margin: 0; }
.cert-name .zh::after { content: ' / '; opacity: 0.4; }
.cert-desc .zh { display: inline; }
.cert-desc .en { display: block; font-size: 0.9em; opacity: 0.7; margin-top: 2px; }

/* Gallery overlay */
.gallery-overlay .zh { display: inline; }
.gallery-overlay .en { display: block; font-size: 0.82em; opacity: 0.75; margin-top: 2px; font-weight: 400; }

/* Contact CTA */
.contact-cta h2 .zh { display: inline; }
.contact-cta h2 .en { display: block; font-size: 0.52em; opacity: 0.8; margin-top: 4px; font-weight: 500; letter-spacing: 0.02em; }
.contact-cta p .zh { display: inline; }
.contact-cta p .en { display: block; font-size: 0.9em; opacity: 0.8; margin-top: 6px; }

/* Footer */
.footer-brand .brand-name .zh { display: inline; }
.footer-brand .brand-name .en { display: block; font-size: 0.82em; opacity: 0.65; margin-top: 2px; }
.footer-brand p .zh { display: inline; }
.footer-brand p .en { display: block; font-size: 0.9em; opacity: 0.7; margin-top: 4px; }
.footer-links a .zh { display: inline; }
.footer-links a .en { display: inline; font-size: inherit; opacity: 0.65; margin: 0; }
.footer-links a .zh::after { content: ' / '; opacity: 0.4; }
.footer-contact-item span .zh { display: inline; }
.footer-contact-item span .en { display: block; font-size: 0.88em; opacity: 0.65; margin-top: 1px; }
.footer-bottom span .zh { display: inline; }
.footer-bottom span .en { display: inline; font-size: inherit; opacity: 1; margin: 0; }

/* Page hero */
.page-hero h1 .zh { display: inline; }
.page-hero h1 .en { display: block; font-size: 0.52em; opacity: 0.72; margin-top: 6px; font-weight: 500; letter-spacing: 0.04em; }
.page-hero p .zh { display: inline; }
.page-hero p .en { display: block; font-size: 0.9em; opacity: 0.75; margin-top: 6px; }

/* Category tabs */
.cat-tab .zh { display: inline; }
.cat-tab .en { display: inline; font-size: 0.82em; opacity: 0.7; margin: 0 0 0 3px; }

/* Product section titles */
.product-section-title h2 .zh { display: inline; }
.product-section-title h2 .en { display: block; font-size: 0.6em; opacity: 0.6; margin-top: 3px; font-weight: 500; }
.product-section-title p .zh { display: inline; }
.product-section-title p .en { display: block; font-size: 0.88em; opacity: 0.7; margin-top: 3px; }
.count .zh { display: inline; }
.count .en { display: inline; font-size: inherit; opacity: 1; margin: 0; }
.count .zh::after { content: ' / '; opacity: 0.4; }

/* Prod full cards */
.cat-label .zh { display: inline; }
.cat-label .en { display: inline; opacity: 0.6; font-size: 0.9em; margin: 0; }
.cat-label .zh::after { content: ' · '; opacity: 0.4; }
.prod-full-body h3 .zh { display: inline; }
.prod-full-body h3 .en { display: block; font-size: 0.8em; opacity: 0.58; margin-top: 3px; font-weight: 400; }
.prod-full-body p .zh { display: inline; }
.prod-full-body p .en { display: block; font-size: 0.9em; opacity: 0.65; margin-top: 5px; }

/* Prod specs */
.spec-key .zh { display: inline; }
.spec-key .en { display: inline; font-size: inherit; opacity: 0.7; margin: 0; }
.spec-key .zh::after { content: '/'; opacity: 0.4; margin: 0 1px; }
.spec-val .zh { display: inline; }
.spec-val .en { display: inline; font-size: inherit; opacity: 0.7; margin: 0; }
.spec-val .zh::after { content: ' '; }

/* About page story */
.about-story-text h2 .zh { display: inline; }
.about-story-text h2 .en { display: block; font-size: 0.55em; opacity: 0.6; margin-top: 4px; font-weight: 500; }
.about-story-text p .zh { display: inline; }
.about-story-text p .en { display: block; font-size: 0.9em; opacity: 0.65; margin-top: 6px; line-height: 1.7; }
.about-check-item span .zh { display: inline; }
.about-check-item span .en { display: block; font-size: 0.85em; opacity: 0.65; margin-top: 2px; }

/* Values */
.value-card h3 .zh { display: inline; }
.value-card h3 .en { display: block; font-size: 0.72em; opacity: 0.6; margin-top: 2px; font-weight: 500; }
.value-card p .zh { display: inline; }
.value-card p .en { display: block; font-size: 0.9em; opacity: 0.65; margin-top: 5px; }

/* Timeline */
.tl-content .year { /* year has no bilingual */ }
.tl-content h3 .zh { display: inline; }
.tl-content h3 .en { display: block; font-size: 0.82em; opacity: 0.6; margin-top: 2px; font-weight: 400; }
.tl-content p .zh { display: inline; }
.tl-content p .en { display: block; font-size: 0.9em; opacity: 0.65; margin-top: 4px; }

/* Contact info card */
.contact-info-card h2 .zh { display: inline; }
.contact-info-card h2 .en { display: block; font-size: 0.6em; opacity: 0.75; margin-top: 4px; font-weight: 500; }
.ci-label .zh { display: inline; }
.ci-label .en { display: inline; opacity: 0.8; font-size: inherit; margin: 0; }
.ci-label .zh::after { content: ' / '; opacity: 0.5; }
.ci-val .zh { display: inline; }
.ci-val .en { display: block; font-size: 0.88em; opacity: 0.75; margin-top: 2px; }

/* Contact form */
.contact-form h2 .zh { display: inline; }
.contact-form h2 .en { display: block; font-size: 0.6em; opacity: 0.6; margin-top: 4px; font-weight: 500; }
.form-group label .zh { display: inline; }
.form-group label .en { display: inline; opacity: 0.6; font-size: 0.88em; margin: 0 0 0 4px; }

/* FAQ */
.faq-q .zh { display: inline; }
.faq-q .en { display: block; font-size: 0.82em; opacity: 0.6; margin-top: 3px; font-weight: 400; }
.faq-a .zh { display: inline; }
.faq-a .en { display: block; font-size: 0.92em; opacity: 0.7; margin-top: 8px; border-top: 1px solid var(--gray-200); padding-top: 8px; }

/* lang-toggle display controlled above */

/* ---------- Layout Helpers ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 96px 0;
}
.section-sm { padding: 64px 0; }
.section-title {
  text-align: center;
  margin-bottom: 56px;
}
.section-title h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  color: var(--blue);
  margin-bottom: 12px;
}
.section-title .subtitle {
  font-size: 1.05rem;
  color: var(--gray-500);
  max-width: 540px;
  margin: 0 auto;
}
.section-title .line {
  width: 56px; height: 4px;
  background: linear-gradient(90deg, var(--red), var(--blue));
  border-radius: 2px;
  margin: 16px auto 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.btn-primary {
  background: var(--red);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--red-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200,16,46,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.8);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--blue);
  transform: translateY(-2px);
}
.btn-blue {
  background: var(--blue);
  color: var(--white);
}
.btn-blue:hover {
  background: var(--blue-mid);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,48,135,0.35);
}

/* =============================================
   NAVIGATION
   ============================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition);
}
.navbar.scrolled {
  box-shadow: var(--shadow-md);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo .logo-badge {
  width: 120px; height: 48px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
  background: white;
}
.nav-logo .logo-badge img {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: 4px 6px;
}
.nav-logo .logo-text {
  display: flex;
  flex-direction: column;
}
.nav-logo .logo-name {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--blue);
  line-height: 1.2;
}
.nav-logo .logo-sub {
  font-size: 0.68rem;
  color: var(--gray-500);
  letter-spacing: 0.05em;
  font-family: var(--font-en);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--blue);
  background: var(--blue-light);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-toggle {
  display: flex;
  background: var(--gray-100);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--gray-200);
}
.lang-btn {
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  color: var(--gray-500);
  background: transparent;
  border: none;
}
.lang-btn.active {
  background: var(--blue);
  color: white;
}
.nav-cta {
  padding: 8px 20px;
  background: var(--red);
  color: white;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}
.nav-cta:hover {
  background: var(--red-dark);
  transform: translateY(-1px);
}
/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--blue);
  border-radius: 2px;
  transition: var(--transition);
}
/* Mobile nav */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px; left: 0; right: 0; bottom: 0;
  background: white;
  z-index: 999;
  padding: 32px 24px;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu .nav-link {
  padding: 16px 20px;
  font-size: 1.1rem;
  border-radius: var(--radius);
  border-bottom: 1px solid var(--gray-200);
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--blue) 0%, #001F5B 60%, #0A0A1A 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}
/* Company name watermark — top right of hero */
.hero-company-watermark {
  position: absolute;
  top: 96px; /* below navbar */
  right: 32px;
  z-index: 2;
  text-align: right;
}
.hero-company-watermark .hcw-cn {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.5;
}
.hero-company-watermark .hcw-en {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.28);
  font-family: var(--font-en);
  font-weight: 400;
  letter-spacing: 0.18em;
  margin-top: 2px;
  line-height: 1.4;
}
/* Hide one based on language */
body.lang-en .hero-company-watermark .hcw-cn { display: none; }
body.lang-en .hero-company-watermark .hcw-en { color: rgba(255,255,255,0.4); font-size: 0.72rem; }
@media (max-width: 768px) {
  .hero-company-watermark { display: none; }
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%; right: -10%;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, rgba(200,16,46,0.2) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -30%; left: -10%;
  width: 50vw; height: 50vw;
  background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: 80px 0;
}
.hero-content { color: white; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  padding: 8px 20px;
  font-size: 0.85rem;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}
.hero-badge .dot {
  width: 8px; height: 8px;
  background: #4ADE80;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.15;
  margin-bottom: 8px;
}
.hero h1 .accent { color: var(--red); }
.hero .hero-sub {
  font-size: clamp(1rem, 2vw, 1.3rem);
  opacity: 0.75;
  margin-bottom: 24px;
  font-family: var(--font-en);
  letter-spacing: 0.05em;
}
.hero p {
  font-size: 1.05rem;
  opacity: 0.85;
  max-width: 480px;
  margin-bottom: 40px;
  line-height: 1.8;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-stat .num {
  font-size: 2.2rem;
  font-weight: 800;
  color: white;
  line-height: 1;
}
.hero-stat .num span { color: var(--red); }
.hero-stat .label {
  font-size: 0.85rem;
  opacity: 0.65;
  margin-top: 4px;
}
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-card-stack {
  position: relative;
  width: 100%;
  max-width: 480px;
}
.hero-main-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: 32px;
  color: white;
}
.hero-main-card .card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.hero-main-card .card-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--red), #FF4D6D);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
.hero-main-card h3 { font-size: 1.1rem; }
.hero-main-card .card-sub { font-size: 0.8rem; opacity: 0.6; }
.hero-product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.hero-product-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
  transition: var(--transition);
}
.hero-product-item:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}
.hero-product-item .icon { font-size: 1.8rem; margin-bottom: 8px; }
.hero-product-item .name { font-size: 0.82rem; opacity: 0.85; }
.hero-float-badge {
  position: absolute;
  background: white;
  border-radius: 12px;
  padding: 14px 18px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-float-badge.top-right {
  top: -20px; right: -20px;
}
.hero-float-badge.bottom-left {
  bottom: -48px; left: -20px;
}
.hero-float-badge .badge-icon { font-size: 1.4rem; }
.hero-float-badge .badge-text .t1 { font-size: 0.75rem; color: var(--gray-500); }
.hero-float-badge .badge-text .t2 { font-size: 0.95rem; font-weight: 700; color: var(--blue); }

/* =============================================
   ADVANTAGES
   ============================================= */
.advantages { background: var(--gray-100); }
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.adv-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.adv-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--red), var(--blue));
  transform: scaleX(0);
  transition: var(--transition);
}
.adv-card:hover::before { transform: scaleX(1); }
.adv-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}
.adv-icon {
  width: 72px; height: 72px;
  background: var(--blue-light);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 20px;
  transition: var(--transition);
}
.adv-card:hover .adv-icon {
  background: var(--blue);
  transform: scale(1.1) rotate(-5deg);
}
.adv-card h3 {
  font-size: 1.1rem;
  color: var(--blue);
  margin-bottom: 10px;
}
.adv-card p { font-size: 0.9rem; color: var(--gray-500); line-height: 1.7; }

/* =============================================
   PRODUCTS PREVIEW
   ============================================= */
.products-preview { background: white; }
.prod-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.prod-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  background: white;
  border: 1px solid var(--gray-200);
}
.prod-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}
.prod-img {
  aspect-ratio: 1;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  position: relative;
  overflow: hidden;
}
.prod-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.prod-card:hover .prod-img img { transform: scale(1.08); }
.prod-img .placeholder-emoji { font-size: 4rem; }
.prod-body { padding: 20px; }
.prod-cat {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.prod-body h3 { font-size: 1rem; color: var(--gray-900); margin-bottom: 8px; }
.prod-body p { font-size: 0.85rem; color: var(--gray-500); margin-bottom: 14px; }
.prod-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.prod-tag {
  font-size: 0.72rem;
  padding: 3px 10px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 50px;
  font-weight: 500;
}

/* =============================================
   ABOUT STRIP
   ============================================= */
.about-strip {
  background: linear-gradient(135deg, var(--blue), var(--blue-mid));
  color: white;
}
.about-strip-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 20px;
  color: white;
}
.about-text p { opacity: 0.85; margin-bottom: 16px; line-height: 1.9; }
.about-text .btn-outline { margin-top: 8px; }
.about-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.metric-card {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  backdrop-filter: blur(8px);
}
.metric-card .val {
  font-size: 2.4rem;
  font-weight: 800;
  color: white;
  line-height: 1;
}
.metric-card .val span { color: var(--red); }
.metric-card .lbl { font-size: 0.85rem; opacity: 0.7; margin-top: 6px; }

/* =============================================
   CERTIFICATIONS
   ============================================= */
.certs { background: var(--gray-100); }
.cert-grid {
  display: flex;
  justify-content: center;
  gap: 24px;
}
.cert-item {
  flex: 1;
  max-width: 280px;
  background: white;
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.cert-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.cert-item .cert-icon { font-size: 2.4rem; margin-bottom: 12px; }
.cert-item .cert-name { font-weight: 700; color: var(--blue); font-size: 1rem; }
.cert-item .cert-desc { font-size: 0.82rem; color: var(--gray-500); margin-top: 4px; }

/* =============================================
   GALLERY
   ============================================= */
.gallery-section { background: white; }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--gray-200);
  position: relative;
  cursor: zoom-in;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.gallery-item:hover img { transform: scale(1.08); }
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,48,135,0.7), transparent);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  color: white;
  font-weight: 600;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
/* Placeholder for when image not provided */
.gallery-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--blue-light), var(--gray-200));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--blue);
}
.gallery-placeholder .ph-icon { font-size: 2.5rem; }
.gallery-placeholder .ph-text { font-size: 0.85rem; font-weight: 600; opacity: 0.7; }

/* =============================================
   CONTACT CTA
   ============================================= */
.contact-cta {
  background: var(--red);
  color: white;
  text-align: center;
  padding: 80px 0;
}
.contact-cta h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 12px;
  color: white;
}
.contact-cta p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 36px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn-white {
  background: white;
  color: var(--red);
  font-weight: 700;
}
.btn-white:hover {
  background: var(--gray-100);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.btn-outline-white {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.7);
  font-weight: 600;
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.12);
  border-color: white;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--gray-900);
  color: rgba(255,255,255,0.75);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .logo-badge {
  width: 64px; height: 64px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  overflow: hidden;
  background: white;
}
.footer-brand .logo-badge img {
  width: 100%; height: 100%;
  object-fit: contain;
}
.footer-brand .brand-name { font-size: 1.1rem; font-weight: 700; color: white; margin-bottom: 4px; }
.footer-brand .brand-sub { font-size: 0.75rem; opacity: 0.5; font-family: var(--font-en); }
.footer-brand p { font-size: 0.88rem; line-height: 1.8; margin-top: 16px; }
.footer h4 { color: white; font-size: 0.95rem; margin-bottom: 20px; font-weight: 700; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.88rem; transition: var(--transition); }
.footer-links a:hover { color: white; padding-left: 4px; }
.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.88rem;
}
.footer-contact-item .ci-icon { font-size: 1rem; flex-shrink: 0; margin-top: 2px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  opacity: 0.5;
}

/* =============================================
   PRODUCTS PAGE
   ============================================= */
.page-hero {
  background: linear-gradient(135deg, var(--blue), #001F5B);
  color: white;
  padding: 140px 0 80px;
  text-align: center;
}
.page-hero h1 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 16px; }
.page-hero p { font-size: 1.1rem; opacity: 0.8; max-width: 600px; margin: 0 auto; }
.page-hero .breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 0.85rem;
  opacity: 0.6;
  margin-bottom: 20px;
}
.page-hero .breadcrumb a:hover { opacity: 1; }

.category-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
@media (max-width: 768px) {
  .category-tabs {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: 4px 0 12px;
    margin-bottom: 24px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 10px;
  }
  .category-tabs::-webkit-scrollbar { display: none; }
  .cat-tab {
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 8px 16px;
    font-size: 0.82rem;
  }
  .page-hero { padding: 40px 0; }
  .page-hero h1 { font-size: 1.8rem; margin: 10px 0; }
  .page-hero p { font-size: 0.85rem; line-height: 1.6; }
}
.cat-tab {
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  background: var(--gray-100);
  color: var(--gray-700);
  border: 2px solid transparent;
}
.cat-tab.active, .cat-tab:hover {
  background: var(--blue);
  color: white;
}
.cat-tab.active { border-color: var(--blue); }

.product-section { margin-bottom: 72px; }
.product-section-title {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--gray-200);
}
.product-section-title .ps-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--red), var(--blue));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.product-section-title h2 { font-size: 1.5rem; color: var(--blue); }
@media (max-width: 768px) {
  .product-section-title {
    flex-wrap: wrap;
    gap: 12px;
  }
  .product-section-title h2 { font-size: 1.25rem; }
  .product-section-title .count {
    width: 100%;
    margin-left: 0;
    order: 3;
    background: var(--gray-100);
    padding: 4px 10px;
    border-radius: 4px;
    display: inline-block;
  }
}
.product-section-title .count {
  margin-left: auto;
  font-size: 0.85rem;
  color: var(--gray-500);
  background: var(--gray-100);
  padding: 4px 14px;
  border-radius: 50px;
}

.prod-full-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.prod-full-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.prod-full-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.prod-full-img {
  aspect-ratio: 4/3;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  position: relative;
  overflow: hidden;
}
.prod-full-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.prod-full-card:hover .prod-full-img img { transform: scale(1.06); }
.prod-full-body { padding: 24px; }
@media (max-width: 768px) {
  .prod-full-body { padding: 16px; }
  .prod-full-body h3 { font-size: 1rem; }
  .prod-full-body p { font-size: 0.82rem; margin-bottom: 12px; }
  .prod-specs { padding: 10px; margin-bottom: 12px; }
}
.prod-full-body .cat-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--red);
  margin-bottom: 8px;
}
.prod-full-body h3 { font-size: 1.05rem; color: var(--gray-900); margin-bottom: 10px; }
.prod-full-body p { font-size: 0.88rem; color: var(--gray-500); line-height: 1.7; margin-bottom: 16px; }
.prod-specs {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px;
  background: var(--gray-100);
  border-radius: 10px;
  margin-bottom: 16px;
}
.prod-spec-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
}
.prod-spec-row .spec-key { color: var(--gray-500); }
.prod-spec-row .spec-val { color: var(--gray-900); font-weight: 600; }
.prod-full-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.prod-full-tag {
  font-size: 0.72rem;
  padding: 4px 12px;
  border-radius: 50px;
  font-weight: 500;
}
.tag-blue { background: var(--blue-light); color: var(--blue); }
.tag-red { background: var(--red-light); color: var(--red-dark); }

/* =============================================
   ABOUT PAGE
   ============================================= */
.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-story-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  background: var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
}
.about-story-img img { width: 100%; height: 100%; object-fit: cover; }
.about-story-text .highlight {
  color: var(--red);
  font-weight: 700;
}
.about-story-text h2 { font-size: 2rem; color: var(--blue); margin-bottom: 20px; }
.about-story-text p { margin-bottom: 16px; color: var(--gray-700); line-height: 1.9; }
.about-checklist { margin-top: 24px; display: flex; flex-direction: column; gap: 10px; }
.about-check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
}
.about-check-item .check-icon {
  width: 22px; height: 22px;
  background: var(--blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.7rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--red), var(--blue));
  transform: translateX(-50%);
}
.timeline-item {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: start;
  margin-bottom: 48px;
}
.timeline-item:nth-child(odd) .tl-content { grid-column: 1; text-align: right; }
.timeline-item:nth-child(odd) .tl-empty { grid-column: 3; }
.timeline-item:nth-child(even) .tl-content { grid-column: 3; }
.timeline-item:nth-child(even) .tl-empty { grid-column: 1; }
.tl-dot {
  grid-column: 2;
  width: 16px; height: 16px;
  background: var(--red);
  border-radius: 50%;
  border: 3px solid white;
  box-shadow: 0 0 0 3px var(--red);
  margin-top: 4px;
}
.tl-content .year {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--red);
  margin-bottom: 4px;
}
.tl-content h3 { font-size: 1rem; color: var(--blue); margin-bottom: 6px; }
.tl-content p { font-size: 0.88rem; color: var(--gray-500); }

/* =============================================
   CONTACT PAGE
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}
.contact-info-card {
  background: linear-gradient(135deg, var(--blue), var(--blue-mid));
  border-radius: var(--radius-lg);
  padding: 40px;
  color: white;
}
.contact-info-card h2 { margin-bottom: 32px; font-size: 1.6rem; }
.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}
.contact-info-item .ci-icon-box {
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-info-item .ci-label { font-size: 0.78rem; opacity: 0.65; margin-bottom: 2px; }
.contact-info-item .ci-val { font-size: 1rem; font-weight: 600; }
.contact-form {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.contact-form h2 { font-size: 1.6rem; color: var(--blue); margin-bottom: 28px; }
.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: 0.88rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  font-size: 0.95rem;
  font-family: var(--font-cn);
  color: var(--gray-900);
  transition: var(--transition);
  outline: none;
  background: var(--gray-100);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  background: white;
  box-shadow: 0 0 0 3px rgba(0,48,135,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit { width: 100%; padding: 16px; font-size: 1rem; border-radius: 10px; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  /* keep 2-col on tablet */
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .prod-full-grid { grid-template-columns: repeat(2, 1fr); }
  .about-story { grid-template-columns: 1fr; gap: 40px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 40px 0; }
  .section-title { margin-bottom: 32px; }
  .section-title h2 { font-size: 1.75rem; }
  .hero-grid { grid-template-columns: 1fr; padding: 60px 0; }
  .hero-visual { display: none; }
  .hero h1 { font-size: 2.2rem; }
  .hero-stats { 
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
    margin-top: 40px; 
    padding-top: 24px;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.15);
    width: 100%;
  }
  .hero-stat { }
  .hero-stat .num { font-size: 1.5rem; line-height: 1.1; font-weight: 700; white-space: nowrap; }
  .hero-stat .label { font-size: 0.85rem; font-weight: 400; color: var(--gray-400); margin-top: 4px; }
  .hero-stat .label .en { font-size: 0.72rem; opacity: 0.6; margin-top: 2px; display: block; white-space: normal; line-height: 1.2; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .about-strip-inner { grid-template-columns: 1fr; gap: 40px; }
  .about-metrics { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-info-card, .contact-form { padding: 24px 20px; }
  .contact-info-card h2, .contact-form h2 { font-size: 1.35rem; margin-bottom: 24px; }
  .contact-info-item { gap: 12px; margin-bottom: 20px; }
  .contact-info-item .ci-icon-box { width: 36px; height: 36px; font-size: 1rem; border-radius: 8px; }
  .contact-info-item .ci-val { font-size: 0.95rem; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .form-group label { font-size: 0.82rem; }
  .form-group input, .form-group select, .form-group textarea { padding: 10px 14px; font-size: 0.9rem; }
  .map-container { height: 260px; margin-top: 20px; }
  .faq-item { padding: 16px 20px; }
  .faq-q { font-size: 0.92rem; }
  .faq-a { font-size: 0.85rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .cert-grid { flex-wrap: wrap; gap: 16px; }
  .cert-item { flex: 0 0 calc(50% - 8px); max-width: none; padding: 20px 10px; }
  .timeline::before { left: 16px; }
  .timeline-item { grid-template-columns: auto 1fr; }
  .timeline-item:nth-child(odd) .tl-content,
  .timeline-item:nth-child(even) .tl-content { grid-column: 2; text-align: left; }
  .timeline-item .tl-empty { display: none; }
  .tl-dot { grid-column: 1; }
  .gallery-grid { grid-template-columns: 1fr; gap: 24px; }
  .gallery-item { aspect-ratio: auto; }
  .gallery-item img { height: auto; }

  /* 主营产品：手机端统一改为一排一个横向长方形 (中英文同步) */
  .prod-grid, .prod-full-grid {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  .prod-card, .prod-full-card {
    display: flex;
    flex-direction: column;
    height: auto;
  }
  .prod-img, .prod-full-img {
    aspect-ratio: 16 / 9 !important;
    width: 100%;
    height: auto;
  }
  .prod-full-img img { height: 100%; object-fit: cover; }
  .prod-body, .prod-full-body {
    padding: 20px;
    text-align: left;
  }
  .prod-body h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
  }
  .prod-body p {
    font-size: 0.9rem;
    line-height: 1.6;
  }

  /* 优势介绍：小字缩小，防止显得拥挤 */
  .adv-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px;
  }
  .adv-card {
    padding: 20px 10px;
  }
  .adv-card h3 {
    font-size: 0.95rem;
    margin-bottom: 6px;
  }
  .adv-card p {
    font-size: 0.72rem;
    line-height: 1.4;
    opacity: 0.8;
  }
}

/* Final override for mobile Chinese mode: Only hide text spans, NOT structural containers */
@media (max-width: 768px) {
  body:not(.lang-en) span.en,
  body:not(.lang-en) p.en,
  body:not(.lang-en) div.en-text {
    display: none !important;
  }
}

/* Mobile Sticky Contact Bar */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: white;
  box-shadow: 0 -4px 12px rgba(0,0,0,0.1);
  z-index: 1000;
  padding: 12px 16px;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 768px) {
  .mobile-sticky-bar { display: grid; }
  body { padding-bottom: 80px; }
}

.sticky-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
}

.sticky-call { background: var(--blue); color: white; }
.sticky-whatsapp { background: #25D366; color: white; }

/* Floating WhatsApp Button (Desktop & Global) */
.floating-contact {
  position: fixed;
  right: 24px;
  bottom: 160px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 900;
}

.float-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.6rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  text-decoration: none;
}

.float-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.float-whatsapp { background: #25D366; }
.float-phone { background: var(--blue); }

@media (max-width: 768px) {
  .floating-contact { display: none; } /* Mobile uses sticky bar instead */
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 100px;
  width: 44px;
  height: 44px;
  background: var(--blue);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 900;
  text-decoration: none;
  font-size: 1.2rem;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 768px) {
  .back-to-top { right: 16px; bottom: 90px; width: 40px; height: 40px; }
}