/* ============================================================
   INDUSTRIAL RUBBER PRODUCTS MANUFACTURER - Design System
   European/American Minimalist Industrial Foreign Trade Style
   ============================================================ */

/* --- Tailwind Config Override --- */
tailwind.config = {
  theme: {
    extend: {
      colors: {
        primary: '#102038',
        'primary-light': '#1a3a5c',
        'primary-dark': '#0a1828',
        bronze: '#B8860B',
        'bronze-light': '#D4A017',
        'bronze-dark': '#8B6508',
        tech: '#3B82F6',
        'tech-light': '#60A5FA',
        'tech-dark': '#2563EB',
        neutral: {
          900: '#0F172A',
          800: '#1E293B',
          700: '#334155',
          600: '#475569',
          500: '#64748B',
          400: '#94A3B8',
          300: '#CBD5E1',
          200: '#E2E8F0',
          100: '#F1F5F9',
          50: '#F8FAFC',
        }
      },
      fontFamily: {
        sans: ['Inter', 'system-ui', '-apple-system', 'sans-serif'],
      },
      letterSpacing: {
        tight: '-0.5px',
      },
      maxWidth: {
        '7xl': '1280px',
      },
      transitionDuration: {
        '220': '220ms',
        '260': '260ms',
      }
    }
  }
}

/* --- Base Styles --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #1E293B;
  background: #F8FAFC;
  overflow-x: hidden;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #102038;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
  color: #475569;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 220ms ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* --- Utility Classes --- */
.container-xl {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .container-xl {
    padding: 0 2rem;
  }
}

.section-padding {
  padding: 3rem 0;
}

@media (min-width: 768px) {
  .section-padding {
    padding: 5rem 0;
  }
}

/* --- Section Labels --- */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #B8860B;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #102038;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1rem;
  color: #64748B;
  max-width: 640px;
  line-height: 1.6;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding: 0.875rem 2rem;
  border: none;
  cursor: pointer;
  transition: all 220ms ease;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background: #102038;
  color: #FFFFFF;
}

.btn-primary:hover {
  background: #1a3a5c;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(16, 32, 56, 0.3);
}

.btn-bronze {
  background: #B8860B;
  color: #FFFFFF;
}

.btn-bronze:hover {
  background: #D4A017;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(184, 134, 11, 0.3);
}

.btn-outline {
  background: transparent;
  color: #102038;
  border: 1.5px solid #102038;
}

.btn-outline:hover {
  background: #102038;
  color: #FFFFFF;
}

.btn-outline-light {
  background: transparent;
  color: #FFFFFF;
  border: 1.5px solid rgba(255,255,255,0.4);
}

.btn-outline-light:hover {
  background: #FFFFFF;
  color: #102038;
  border-color: #FFFFFF;
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.75rem;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 0.9375rem;
}

/* --- Header / Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(16, 32, 56, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: all 260ms ease;
}

.site-header.scrolled {
  background: rgba(16, 32, 56, 0.98);
  box-shadow: 0 1px 20px rgba(0,0,0,0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  height: 72px;
}

@media (min-width: 768px) {
  .header-inner {
    padding: 0 2rem;
  }
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.5px;
  white-space: nowrap;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: #B8860B;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #FFFFFF;
  font-weight: 800;
  flex-shrink: 0;
}

.logo-text {
  line-height: 1.1;
}

.logo-text small {
  display: block;
  font-size: 0.625rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #94A3B8;
}

/* --- Desktop Navigation --- */
.main-nav {
  display: none;
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: #CBD5E1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  transition: color 220ms ease;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
}

.nav-link:hover,
.nav-link.active {
  color: #FFFFFF;
}

.nav-link .arrow {
  font-size: 0.625rem;
  transition: transform 220ms ease;
}

.nav-item:hover .nav-link .arrow {
  transform: rotate(180deg);
}

/* --- Dropdown Menu --- */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 220ms ease;
  z-index: 100;
  padding: 0.5rem 0;
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: 0.625rem 1.25rem;
  font-size: 0.8125rem;
  color: #334155;
  transition: all 200ms ease;
  font-weight: 500;
}

.dropdown-link:hover {
  background: #F1F5F9;
  color: #102038;
  padding-left: 1.5rem;
}

/* --- Mobile Menu Toggle --- */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #FFFFFF;
  transition: all 220ms ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 360px;
  height: 100vh;
  background: #102038;
  z-index: 999;
  padding: 5rem 2rem 2rem;
  transition: right 280ms ease;
  overflow-y: auto;
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all 280ms ease;
}

.mobile-menu-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-link {
  display: block;
  padding: 0.875rem 0;
  font-size: 0.9375rem;
  font-weight: 500;
  color: #CBD5E1;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  transition: color 200ms ease;
}

.mobile-nav-link:hover {
  color: #FFFFFF;
}

.mobile-submenu-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.875rem 0;
  font-size: 0.9375rem;
  font-weight: 500;
  color: #CBD5E1;
  background: none;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-family: inherit;
}

.mobile-submenu-toggle .arrow {
  font-size: 0.625rem;
  transition: transform 220ms ease;
}

.mobile-submenu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 280ms ease;
  background: rgba(255,255,255,0.02);
  padding-left: 1rem;
}

.mobile-submenu.open {
  max-height: 300px;
}

.mobile-submenu a {
  display: block;
  padding: 0.625rem 0;
  font-size: 0.8125rem;
  color: #94A3B8;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: color 200ms ease;
}

.mobile-submenu a:hover {
  color: #FFFFFF;
}

/* --- Page Hero --- */
.page-hero {
  position: relative;
  padding: 8rem 0 4rem;
  background: #102038;
  overflow: hidden;
}

@media (min-width: 768px) {
  .page-hero {
    padding: 10rem 0 5rem;
  }
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 30% 50%, rgba(59,130,246,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 30%, rgba(184,134,11,0.06) 0%, transparent 50%);
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .page-hero-content {
    padding: 0 2rem;
  }
}

.page-hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #B8860B;
  margin-bottom: 1rem;
}

.page-hero h1 {
  color: #FFFFFF;
  margin-bottom: 1rem;
}

.page-hero p {
  color: #94A3B8;
  font-size: 1.0625rem;
  max-width: 600px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: #94A3B8;
  margin-top: 1.5rem;
}

.breadcrumb a {
  color: #94A3B8;
  transition: color 200ms ease;
}

.breadcrumb a:hover {
  color: #FFFFFF;
}

.breadcrumb .sep {
  color: #475569;
}

/* --- Home Hero --- */
.home-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: #102038;
  overflow: hidden;
}

.home-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.home-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(16,32,56,0.75) 0%, rgba(16,32,56,0.9) 100%);
}

.home-hero-content {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  width: 100%;
}

@media (min-width: 768px) {
  .home-hero-content {
    padding: 0 2rem;
  }
}

.home-hero h1 {
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  color: #FFFFFF;
  line-height: 1.1;
  max-width: 800px;
  margin-bottom: 1.5rem;
}

.home-hero h1 span {
  color: #B8860B;
}

.home-hero p {
  font-size: 1.0625rem;
  color: #CBD5E1;
  max-width: 560px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 3rem;
}

.hero-stat {
  text-align: left;
}

.hero-stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: #B8860B;
  letter-spacing: -0.5px;
}

.hero-stat-label {
  font-size: 0.75rem;
  color: #94A3B8;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.25rem;
}

/* --- Cards --- */
.card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  transition: all 260ms ease;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
  border-color: #CBD5E1;
}

.card-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform 400ms ease;
}

.card:hover .card-img {
  transform: scale(1.04);
}

.card-body {
  padding: 1.5rem;
}

.card-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #B8860B;
  margin-bottom: 0.5rem;
}

.card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  transition: color 220ms ease;
}

.card:hover h3 {
  color: #3B82F6;
}

.card p {
  font-size: 0.875rem;
  color: #64748B;
  line-height: 1.6;
}

/* --- Product Card --- */
.product-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  transition: all 260ms ease;
  overflow: hidden;
  position: relative;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
  border-color: #B8860B;
}

.product-card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1/1;
  background: #F1F5F9;
}

.product-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

.product-card:hover .product-card-img {
  transform: scale(1.05);
}

.product-card-body {
  padding: 1.5rem;
}

.product-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.5rem;
  transition: color 220ms ease;
}

.product-card:hover h3 {
  color: #B8860B;
}

.product-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.product-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 500;
  background: #F1F5F9;
  color: #475569;
  letter-spacing: 0.02em;
}

/* --- Feature Card --- */
.feature-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  padding: 2rem;
  transition: all 260ms ease;
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
  border-color: #B8860B;
}

.feature-card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 32, 56, 0.04);
  border: 1px solid #E2E8F0;
  font-size: 1.5rem;
  transition: all 260ms ease;
}

.feature-card:hover .feature-card-icon {
  background: #102038;
  color: #FFFFFF;
  border-color: #102038;
}

.feature-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: #64748B;
  line-height: 1.6;
}

/* --- Case Card --- */
.case-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  overflow: hidden;
  transition: all 260ms ease;
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

.case-card-img-wrap {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.case-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

.case-card:hover .case-card-img {
  transform: scale(1.04);
}

.case-card-body {
  padding: 1.5rem;
}

.case-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.case-card p {
  font-size: 0.875rem;
  color: #64748B;
}

/* --- News Card --- */
.news-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  transition: all 260ms ease;
  overflow: hidden;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

.news-card-img-wrap {
  aspect-ratio: 16/10;
  overflow: hidden;
}

.news-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

.news-card:hover .news-card-img {
  transform: scale(1.04);
}

.news-card-body {
  padding: 1.5rem;
}

.news-card-date {
  font-size: 0.75rem;
  color: #94A3B8;
  margin-bottom: 0.5rem;
}

.news-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.75rem;
  transition: color 220ms ease;
}

.news-card:hover h3 {
  color: #3B82F6;
}

.news-card p {
  font-size: 0.875rem;
  color: #64748B;
  line-height: 1.6;
}

/* --- Contact Form --- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #1E293B;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.9375rem;
  color: #1E293B;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  transition: all 220ms ease;
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: #102038;
  box-shadow: 0 0 0 3px rgba(16, 32, 56, 0.06);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #94A3B8;
}

/* --- Section Backgrounds --- */
.bg-primary {
  background: #102038;
}

.bg-light {
  background: #F8FAFC;
}

.bg-white {
  background: #FFFFFF;
}

.bg-neutral-50 {
  background: #F8FAFC;
}

/* --- Divider --- */
.section-divider {
  width: 60px;
  height: 3px;
  background: #B8860B;
  margin: 1.5rem 0;
}

.section-divider.center {
  margin-left: auto;
  margin-right: auto;
}

/* --- Floating Contact Widget --- */
.floating-widget {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (max-width: 640px) {
  .floating-widget {
    right: 0.75rem;
    gap: 0.375rem;
  }
}

.widget-item {
  position: relative;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #102038;
  color: #FFFFFF;
  cursor: pointer;
  transition: all 220ms ease;
  border: 1px solid rgba(255,255,255,0.1);
}

.widget-item:hover {
  background: #B8860B;
  border-color: #B8860B;
}

.widget-item svg {
  width: 20px;
  height: 20px;
}

.widget-tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background: #FFFFFF;
  color: #1E293B;
  padding: 0.625rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  white-space: nowrap;
  border: 1px solid #E2E8F0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  opacity: 0;
  visibility: hidden;
  transition: all 220ms ease;
  pointer-events: none;
}

.widget-item:hover .widget-tooltip {
  opacity: 1;
  visibility: visible;
}

.widget-tooltip::after {
  content: '';
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: #FFFFFF;
}

/* WeChat QR Popup */
.wechat-qr-popup {
  position: absolute;
  right: calc(100% + 12px);
  bottom: 0;
  background: #FFFFFF;
  padding: 1rem;
  border: 1px solid #E2E8F0;
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
  opacity: 0;
  visibility: hidden;
  transition: all 220ms ease;
  pointer-events: none;
  text-align: center;
  min-width: 160px;
}

.widget-item:hover .wechat-qr-popup {
  opacity: 1;
  visibility: visible;
}

.wechat-qr-placeholder {
  width: 120px;
  height: 120px;
  background: #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed #CBD5E1;
}

.wechat-qr-placeholder span {
  font-size: 0.6875rem;
  color: #94A3B8;
  text-align: center;
}

.wechat-qr-label {
  font-size: 0.75rem;
  color: #475569;
  margin-top: 0.5rem;
  font-weight: 500;
}

/* --- Footer --- */
.site-footer {
  background: #0F172A;
  color: #CBD5E1;
  padding: 4rem 0 0;
}

@media (min-width: 768px) {
  .site-footer {
    padding: 5rem 0 0;
  }
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.footer-col p {
  color: #94A3B8;
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.footer-col a {
  display: block;
  color: #94A3B8;
  font-size: 0.875rem;
  padding: 0.375rem 0;
  transition: color 200ms ease;
}

.footer-col a:hover {
  color: #FFFFFF;
  padding-left: 4px;
}

.footer-bottom {
  margin-top: 3rem;
  padding: 1.5rem 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: #64748B;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 400ms ease, transform 400ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0ms; }
.reveal-delay-2 { transition-delay: 100ms; }
.reveal-delay-3 { transition-delay: 200ms; }
.reveal-delay-4 { transition-delay: 300ms; }

/* --- About Page --- */
.about-image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 0.75rem;
}

.about-image-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

.about-image-grid .img-main {
  grid-row: span 2;
  aspect-ratio: 3/4;
}

.about-image-grid .img-secondary {
  aspect-ratio: 4/3;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 100%;
  background: #E2E8F0;
}

.timeline-item {
  position: relative;
  padding-bottom: 2rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2.35rem;
  top: 0.25rem;
  width: 12px;
  height: 12px;
  background: #B8860B;
  border: 2px solid #FFFFFF;
  box-shadow: 0 0 0 1px #B8860B;
}

.timeline-year {
  font-size: 0.875rem;
  font-weight: 700;
  color: #B8860B;
  margin-bottom: 0.25rem;
}

.timeline h4 {
  font-size: 1.0625rem;
  margin-bottom: 0.5rem;
}

.timeline p {
  font-size: 0.875rem;
  color: #64748B;
}

/* --- Certifications Grid --- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .cert-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .cert-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.cert-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all 260ms ease;
}

.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
  border-color: #B8860B;
}

.cert-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  background: #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  color: #102038;
}

.cert-card h4 {
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
}

.cert-card p {
  font-size: 0.75rem;
  color: #94A3B8;
}

/* --- Product Detail --- */
.product-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .product-gallery {
    grid-template-columns: 1fr 80px;
  }
}

.product-gallery-main {
  aspect-ratio: 1/1;
  object-fit: cover;
  border: 1px solid #E2E8F0;
  order: -1;
}

.product-gallery-thumbs {
  display: flex;
  gap: 0.5rem;
}

@media (min-width: 768px) {
  .product-gallery-thumbs {
    flex-direction: column;
  }
}

.product-gallery-thumb {
  width: 80px;
  height: 80px;
  object-fit: cover;
  cursor: pointer;
  border: 1px solid #E2E8F0;
  transition: border-color 220ms ease;
  flex-shrink: 0;
}

.product-gallery-thumb:hover,
.product-gallery-thumb.active {
  border-color: #B8860B;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
}

.spec-table tr {
  border-bottom: 1px solid #E2E8F0;
}

.spec-table td {
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
}

.spec-table td:first-child {
  font-weight: 600;
  color: #1E293B;
  width: 180px;
  background: #F8FAFC;
}

.spec-table td:last-child {
  color: #475569;
}

/* --- News Detail --- */
.article-header {
  padding: 8rem 0 3rem;
  background: #102038;
}

.article-header-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .article-header-inner {
    padding: 0 2rem;
  }
}

.article-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #B8860B;
  margin-bottom: 1rem;
}

.article-header h1 {
  color: #FFFFFF;
  margin-bottom: 1rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: #94A3B8;
}

.article-body {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 1rem;
}

@media (min-width: 768px) {
  .article-body {
    padding: 4rem 2rem;
  }
}

.article-body h2 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
}

.article-body h3 {
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
}

.article-body p {
  margin-bottom: 1.25rem;
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.25rem 1.5rem;
}

.article-body li {
  color: #475569;
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.article-body img {
  margin: 2rem 0;
  width: 100%;
}

.article-body blockquote {
  border-left: 3px solid #B8860B;
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  background: #F8FAFC;
  font-style: italic;
  color: #475569;
}

/* --- Pagination --- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  margin-top: 3rem;
}

.page-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid #E2E8F0;
  background: #FFFFFF;
  color: #475569;
  cursor: pointer;
  transition: all 220ms ease;
  font-family: 'Inter', sans-serif;
}

.page-btn:hover {
  border-color: #102038;
  color: #102038;
}

.page-btn.active {
  background: #102038;
  color: #FFFFFF;
  border-color: #102038;
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* --- Filter Bar (Products) --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.625rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  color: #475569;
  cursor: pointer;
  transition: all 220ms ease;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.02em;
}

.filter-btn:hover {
  border-color: #102038;
  color: #102038;
}

.filter-btn.active {
  background: #102038;
  color: #FFFFFF;
  border-color: #102038;
}

/* --- CTA Section --- */
.cta-section {
  position: relative;
  background: #102038;
  padding: 4rem 0;
  overflow: hidden;
}

@media (min-width: 768px) {
  .cta-section {
    padding: 5rem 0;
  }
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 80% 50%, rgba(59,130,246,0.1) 0%, transparent 50%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 1rem;
}

.cta-content h2 {
  color: #FFFFFF;
  margin-bottom: 1rem;
}

.cta-content p {
  color: #CBD5E1;
  margin-bottom: 2rem;
}

/* --- Team / Values Cards --- */
.value-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  padding: 2rem;
  transition: all 260ms ease;
}

.value-card:hover {
  border-color: #B8860B;
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

.value-card .value-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: #E2E8F0;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.value-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.75rem;
}

.value-card p {
  font-size: 0.875rem;
  color: #64748B;
}

/* --- Map Placeholder --- */
.map-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: #F1F5F9;
  border: 1px solid #E2E8F0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.map-placeholder .map-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  color: #94A3B8;
}

.map-placeholder p {
  color: #94A3B8;
  font-size: 0.875rem;
}

/* --- Contact Info Card --- */
.contact-info-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  transition: all 260ms ease;
}

.contact-info-card:hover {
  border-color: #B8860B;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 32, 56, 0.04);
  flex-shrink: 0;
  font-size: 1.25rem;
}

.contact-info-text h4 {
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
}

.contact-info-text p {
  font-size: 0.875rem;
  color: #64748B;
}

/* --- Inline Link Arrow --- */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #B8860B;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: gap 220ms ease;
  cursor: pointer;
  text-decoration: none;
}

.link-arrow:hover {
  gap: 0.75rem;
}

/* --- Back to Top --- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #102038;
  color: #FFFFFF;
  border: 1px solid rgba(255,255,255,0.1);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 220ms ease;
  z-index: 899;
}

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

.back-to-top:hover {
  background: #B8860B;
}

/* --- Loading Skeleton --- */
.skeleton {
  background: linear-gradient(90deg, #F1F5F9 25%, #E2E8F0 50%, #F1F5F9 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}