/* =====================================================
   河南亚华智能装备有限公司官网 - 主样式文件
   配色: 墨绿 #1B5E20 + 橙色 #FF6F00 + 深灰 #2C2C2C
   ===================================================== */

/* --- CSS Variables --- */
:root {
  --primary: #1B5E20;
  --primary-light: #2E7D32;
  --primary-dark: #0D3B0F;
  --primary-bg: #E8F5E9;
  --accent: #FF6F00;
  --accent-light: #FF9800;
  --accent-dark: #E65100;
  --dark: #2C2C2C;
  --dark-light: #424242;
  --gray: #757575;
  --gray-light: #BDBDBD;
  --light: #F5F5F5;
  --white: #FFFFFF;
  --shadow: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-lg: 0 4px 20px rgba(0,0,0,0.15);
  --radius: 4px;
  --radius-lg: 8px;
  --transition: all 0.3s ease;
  --font-main: 'Roboto', 'Segoe UI', Arial, sans-serif;
  --font-heading: 'Oswald', 'Roboto', sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-main);
  color: var(--dark);
  line-height: 1.6;
  background: var(--white);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 600; line-height: 1.3; color: var(--dark); }

/* --- Utility Classes --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-dark { background: var(--dark); color: var(--white); }
.section-light { background: var(--light); }
.section-primary { background: var(--primary); color: var(--white); }
.text-center { text-align: center; }
.text-primary { color: var(--primary) !important; }
.text-accent { color: var(--accent) !important; }
.text-white { color: var(--white) !important; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }

/* --- Section Title --- */
.section-title {
  text-align: center;
  margin-bottom: 50px;
}
.section-title h2 {
  font-size: 2.2rem;
  text-transform: uppercase;
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
}
.section-title h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 12px auto 0;
}
.section-title p {
  color: var(--gray);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}
.section-dark .section-title h2 { color: var(--white); }
.section-dark .section-title p { color: var(--gray-light); }

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 12px 30px;
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-light); color: var(--white); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-accent { background: var(--accent); color: var(--white); }
.btn-accent:hover { background: var(--accent-dark); color: var(--white); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline { background: transparent; border: 2px solid var(--white); color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--primary); }
.btn-outline-primary { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline-primary:hover { background: var(--primary); color: var(--white); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }

/* ==============================
   HEADER / NAVIGATION
   ============================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  transition: var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 2px 15px rgba(0,0,0,0.12);
}
.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.site-logo img { height: 50px; width: auto; }
.site-logo-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  line-height: 1.2;
}
.site-logo-text span { font-size: 0.65rem; color: var(--gray); display: block; text-transform: none; font-family: var(--font-main); font-weight: 400; }

/* Main Navigation */
.main-nav { display: flex; align-items: center; gap: 5px; }
.main-nav a {
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--dark);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  border-radius: var(--radius);
  position: relative;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--primary);
  background: var(--primary-bg);
}

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown > a::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.65rem;
  margin-left: 5px;
}
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  padding: 10px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 100;
}
.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 10px 20px;
  font-size: 0.85rem;
  color: var(--dark);
  border-radius: 0;
}
.dropdown-menu a:hover {
  background: var(--primary-bg);
  color: var(--primary);
}

/* Header CTA */
.header-cta .btn { padding: 8px 20px; font-size: 0.85rem; }

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--dark);
  cursor: pointer;
  padding: 5px;
}

/* ==============================
   HERO / SLIDESHOW
   ============================== */
.hero-section {
  position: relative;
  height: 85vh;
  min-height: 500px;
  max-height: 800px;
  overflow: hidden;
  margin-top: 75px;
}
.hero-slides { position: relative; width: 100%; height: 100%; }
.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
  background-size: cover;
  background-position: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(27,94,32,0.5) 0%, rgba(13,59,15,0.4) 50%, rgba(0,0,0,0.3) 100%);
}
.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--white);
  z-index: 2;
  width: 90%;
  max-width: 800px;
}
.hero-content h1 {
  font-size: 3rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}
.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  opacity: 0.95;
}
.hero-btns { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }

/* Slide Navigation */
.hero-nav {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 3;
}
.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: var(--transition);
}
.hero-dot.active { background: var(--accent); transform: scale(1.2); }

.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  background: rgba(255,255,255,0.2);
  border: none;
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition);
}
.hero-arrow:hover { background: var(--accent); }
.hero-arrow.prev { left: 20px; }
.hero-arrow.next { right: 20px; }

/* ==============================
   STATS SECTION
   ============================== */
.stats-section {
  background: var(--primary);
  padding: 50px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 30px;
  text-align: center;
}
.stat-item { color: var(--white); }
.stat-item i { font-size: 2.5rem; color: var(--accent); margin-bottom: 10px; }
.stat-value {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 5px;
}
.stat-label { font-size: 0.9rem; opacity: 0.9; text-transform: uppercase; letter-spacing: 1px; }

/* ==============================
   ABOUT PREVIEW (Home)
   ============================== */
.about-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.about-preview-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.about-preview-image img { width: 100%; height: 400px; object-fit: cover; }
.about-preview-image .experience-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: var(--accent);
  color: var(--white);
  padding: 15px 25px;
  border-radius: var(--radius-lg);
  font-family: var(--font-heading);
}
.experience-badge .number { font-size: 2.5rem; font-weight: 700; display: block; }
.experience-badge .text { font-size: 0.85rem; text-transform: uppercase; }
.about-preview-text h2 { font-size: 2rem; margin-bottom: 20px; }
.about-preview-text p { margin-bottom: 15px; color: var(--gray); }

/* ==============================
   PRODUCT / SOLUTION CARDS
   ============================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 30px;
}
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.card-image {
  height: 220px;
  overflow: hidden;
  position: relative;
}
.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.card:hover .card-image img { transform: scale(1.08); }
.card-image .card-category {
  position: absolute;
  top: 15px;
  left: 15px;
  background: var(--primary);
  color: var(--white);
  padding: 4px 12px;
  border-radius: var(--radius);
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 600;
}
.card-body { padding: 20px; }
.card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--dark);
}
.card-body h3 a { color: inherit; }
.card-body h3 a:hover { color: var(--primary); }
.card-body p { font-size: 0.9rem; color: var(--gray); margin-bottom: 15px; line-height: 1.5; }
.card-body .card-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
}
.card-body .card-link:hover { color: var(--accent-dark); }

/* ==============================
   SOLUTION SECTION (Home)
   ============================== */
.solutions-home-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}
.solution-card {
  position: relative;
  height: 300px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}
.solution-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.solution-card:hover img { transform: scale(1.08); }
.solution-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(27,94,32,0.9) 0%, rgba(27,94,32,0.3) 100%);
  transition: var(--transition);
}
.solution-card:hover::before {
  background: linear-gradient(to top, rgba(255,111,0,0.9) 0%, rgba(27,94,32,0.3) 100%);
}
.solution-card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 30px;
  color: var(--white);
  z-index: 1;
}
.solution-card-content h3 {
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 8px;
}
.solution-card-content p { font-size: 0.9rem; opacity: 0.9; }

/* ==============================
   TESTIMONIALS
   ============================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 30px;
}
.testimonial-card {
  background: var(--white);
  padding: 30px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  position: relative;
}
.testimonial-card::before {
  content: '\201C';
  font-size: 4rem;
  color: var(--primary-bg);
  position: absolute;
  top: 10px;
  left: 20px;
  font-family: serif;
  line-height: 1;
}
.testimonial-card p { font-style: italic; margin-bottom: 20px; color: var(--dark-light); position: relative; z-index: 1; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-author img { width: 50px; height: 50px; border-radius: 50%; object-fit: cover; }
.testimonial-info h4 { font-size: 0.95rem; margin-bottom: 2px; }
.testimonial-info span { font-size: 0.8rem; color: var(--gray); }
.testimonial-stars { color: var(--accent); margin-bottom: 15px; font-size: 0.85rem; }

/* ==============================
   NEWS SECTION (Home)
   ============================== */
.news-home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 30px;
}
.news-card { }
.news-card-image { height: 200px; overflow: hidden; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.news-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.news-card:hover .news-card-image img { transform: scale(1.05); }
.news-card-body { padding: 20px; background: var(--white); border-radius: 0 0 var(--radius-lg) var(--radius-lg); box-shadow: var(--shadow); }
.news-card-body .date { font-size: 0.8rem; color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.news-card-body h3 { font-size: 1rem; margin-bottom: 8px; }
.news-card-body h3 a { color: var(--dark); }
.news-card-body h3 a:hover { color: var(--primary); }
.news-card-body p { font-size: 0.85rem; color: var(--gray); }

/* ==============================
   FOOTER
   ============================== */
.site-footer { background: var(--dark); color: var(--gray-light); padding-top: 60px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-about h3 { color: var(--white); font-size: 1.3rem; margin-bottom: 15px; }
.footer-about p { font-size: 0.9rem; line-height: 1.7; margin-bottom: 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: var(--transition);
}
.footer-social a:hover { background: var(--accent); }
.footer-links h4 { color: var(--white); font-size: 1rem; margin-bottom: 20px; text-transform: uppercase; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links a { color: var(--gray-light); font-size: 0.9rem; }
.footer-links a:hover { color: var(--accent); padding-left: 5px; }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 12px; font-size: 0.9rem; }
.footer-contact i { color: var(--accent); margin-top: 3px; width: 16px; }
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
}

/* ==============================
   PAGE BANNER (Inner pages)
   ============================== */
.page-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 120px 0 60px;
  margin-top: 75px;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="80" cy="20" r="40" fill="rgba(255,255,255,0.03)"/></svg>') no-repeat;
  background-size: cover;
}
.page-banner h1 {
  font-size: 2.5rem;
  color: var(--white);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 0.9rem;
}
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: rgba(255,255,255,0.5); }

/* ==============================
   SIDEBAR
   ============================== */
.page-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
}
.sidebar { }
.sidebar-widget {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 25px;
  box-shadow: var(--shadow);
  margin-bottom: 25px;
}
.sidebar-widget h3 {
  font-size: 1.1rem;
  margin-bottom: 15px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary);
}
.sidebar-widget ul li { margin-bottom: 8px; }
.sidebar-widget a {
  display: block;
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--dark-light);
  border-bottom: 1px solid var(--light);
}
.sidebar-widget a:hover,
.sidebar-widget a.active { color: var(--primary); font-weight: 600; }

/* ==============================
   PRODUCT DETAIL
   ============================== */
.product-detail { padding: 40px 0; }
.product-gallery {
  display: grid;
  grid-template-columns: 1fr 80px;
  gap: 10px;
}
.product-main-image {
  height: 450px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--light);
}
.product-main-image img { width: 100%; height: 100%; object-fit: contain; }
.product-thumbs { display: flex; flex-direction: column; gap: 8px; }
.product-thumb {
  height: 80px;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}
.product-thumb.active,
.product-thumb:hover { border-color: var(--primary); }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; }

.product-info { margin-top: 30px; }
.product-info h1 { font-size: 1.8rem; margin-bottom: 15px; }

.product-params {
  background: var(--light);
  border-radius: var(--radius-lg);
  padding: 25px;
  margin: 25px 0;
}
.product-params h3 { margin-bottom: 15px; }
.params-table { width: 100%; }
.params-table tr { border-bottom: 1px solid var(--gray-light); }
.params-table td { padding: 10px 0; font-size: 0.9rem; }
.params-table td:first-child { font-weight: 600; width: 40%; color: var(--dark); }

.product-models {
  margin: 25px 0;
  overflow-x: auto;
}
.product-models table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.product-models th {
  background: var(--primary);
  color: var(--white);
  padding: 12px 15px;
  text-align: left;
}
.product-models td {
  padding: 10px 15px;
  border-bottom: 1px solid var(--light);
}
.product-models tr:hover td { background: var(--primary-bg); }

.product-description { margin: 25px 0; line-height: 1.8; }
.product-description img { border-radius: var(--radius-lg); margin: 15px 0; }

/* ==============================
   INQUIRY FORM
   ============================== */
.inquiry-form {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 35px;
  color: var(--white);
}
.inquiry-form h3 {
  color: var(--white);
  font-size: 1.3rem;
  margin-bottom: 20px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom: 15px; }
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 5px; font-size: 0.9rem; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 15px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.1);
  color: var(--white);
  font-size: 0.9rem;
  transition: var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255,255,255,0.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.5); }
.form-group textarea { height: 120px; resize: vertical; }
.form-group select option { background: var(--dark); color: var(--white); }

/* ==============================
   NEWS DETAIL
   ============================== */
.news-detail { padding: 40px 0; }
.news-detail h1 { font-size: 2rem; margin-bottom: 15px; }
.news-meta {
  display: flex;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 25px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--light);
}
.news-meta i { color: var(--accent); margin-right: 5px; }
.news-content { line-height: 1.8; font-size: 1rem; }
.news-content p { margin-bottom: 15px; }
.news-content img { border-radius: var(--radius-lg); margin: 20px 0; }
.news-content h2, .news-content h3 { margin: 25px 0 10px; }

.news-nav {
  display: flex;
  justify-content: space-between;
  padding: 25px 0;
  margin-top: 30px;
  border-top: 1px solid var(--light);
}
.news-nav a { font-size: 0.9rem; }
.news-nav a i { margin-right: 5px; }

/* ==============================
   FAQ
   ============================== */
.faq-group { margin-bottom: 30px; }
.faq-group h3 { font-size: 1.2rem; color: var(--primary); margin-bottom: 15px; }
.faq-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  margin-bottom: 10px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq-question {
  padding: 18px 25px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-question i { color: var(--accent); transition: transform 0.3s; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
  padding: 0 25px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  color: var(--dark-light);
  line-height: 1.7;
}
.faq-item.open .faq-answer { padding: 0 25px 20px; max-height: 500px; }

/* ==============================
   CONTACT PAGE
   ============================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.contact-info-cards {
  display: grid;
  gap: 20px;
  margin-bottom: 30px;
}
.contact-info-card {
  display: flex;
  gap: 15px;
  padding: 20px;
  background: var(--light);
  border-radius: var(--radius-lg);
  align-items: flex-start;
}
.contact-info-card i {
  font-size: 1.5rem;
  color: var(--primary);
  margin-top: 3px;
}
.contact-info-card h4 { font-size: 1rem; margin-bottom: 5px; }
.contact-info-card p { font-size: 0.9rem; color: var(--gray); }

.contact-map {
  height: 300px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--light);
  margin-top: 20px;
}
.contact-map iframe { width: 100%; height: 100%; border: none; }

.contact-form-section {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 35px;
  box-shadow: var(--shadow);
}
.contact-form-section h3 { font-size: 1.3rem; margin-bottom: 20px; }
.contact-form-section .form-group input,
.contact-form-section .form-group select,
.contact-form-section .form-group textarea {
  background: var(--light);
  border-color: var(--gray-light);
  color: var(--dark);
}
.contact-form-section .form-group input::placeholder,
.contact-form-section .form-group textarea::placeholder { color: var(--gray); }
.contact-form-section .form-group input:focus,
.contact-form-section .form-group select:focus,
.contact-form-section .form-group textarea:focus {
  border-color: var(--primary);
  background: var(--white);
}

/* ==============================
   ABOUT PAGE
   ============================== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.about-intro-image { border-radius: var(--radius-lg); overflow: hidden; }
.about-intro-image img { width: 100%; height: 400px; object-fit: cover; }
.about-intro-text h2 { font-size: 2rem; margin-bottom: 20px; }
.about-intro-text p { margin-bottom: 15px; color: var(--dark-light); line-height: 1.8; }

.about-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}
.about-gallery-item {
  height: 250px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.about-gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.about-gallery-item:hover img { transform: scale(1.05); }

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.cert-item {
  padding: 20px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
}
.cert-item img { height: 200px; object-fit: contain; margin: 0 auto 10px; }

/* ==============================
   PAGINATION
   ============================== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 5px;
  margin-top: 40px;
}
.page-item { }
.page-link {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--gray-light);
  border-radius: var(--radius);
  color: var(--dark);
  font-size: 0.9rem;
  transition: var(--transition);
}
.page-link:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }
.page-item.active .page-link { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ==============================
   404 PAGE
   ============================== */
.error-page {
  text-align: center;
  padding: 100px 20px;
  margin-top: 75px;
}
.error-page h1 { font-size: 6rem; color: var(--primary); margin-bottom: 10px; }
.error-page h2 { font-size: 1.5rem; margin-bottom: 20px; }
.error-page p { color: var(--gray); margin-bottom: 30px; }

/* ==============================
   RESPONSIVE DESIGN
   ============================== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .page-with-sidebar { grid-template-columns: 1fr; }
  .sidebar { order: 2; }
  .solutions-home-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 50px 0; }
  .section-title h2 { font-size: 1.8rem; }
  
  /* Header Mobile */
  .main-nav {
    position: fixed;
    top: 75px;
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    transform: translateX(-100%);
    transition: var(--transition);
    max-height: calc(100vh - 75px);
    overflow-y: auto;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav a { padding: 12px 0; width: 100%; border-bottom: 1px solid var(--light); }
  .menu-toggle { display: block; }
  .header-cta { display: none; }
  
  /* Dropdown Mobile */
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    padding-left: 20px;
    display: none;
  }
  .nav-dropdown.open .dropdown-menu { display: block; }

  /* Hero */
  .hero-section { height: 60vh; min-height: 400px; }
  .hero-content h1 { font-size: 2rem; }
  .hero-content p { font-size: 1rem; }
  .hero-arrow { display: none; }

  /* About */
  .about-preview { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  
  /* Solutions */
  .solutions-home-grid { grid-template-columns: 1fr; }
  .solution-card { height: 250px; }

  /* Products */
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  
  /* Contact */
  .contact-grid { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; }

  /* Page Banner */
  .page-banner { padding: 100px 0 40px; }
  .page-banner h1 { font-size: 1.8rem; }

  /* Product Detail */
  .product-gallery { grid-template-columns: 1fr; }
  .product-thumbs { flex-direction: row; }
  .product-thumb { width: 80px; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-section { height: 50vh; min-height: 350px; }
  .hero-content h1 { font-size: 1.5rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .stat-value { font-size: 2rem; }
  .card-grid { grid-template-columns: 1fr; }
  .btn-lg { padding: 12px 30px; font-size: 0.95rem; }
}

/* --- Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Toast/Alert --- */
.toast {
  position: fixed;
  top: 100px;
  right: 20px;
  padding: 15px 25px;
  border-radius: var(--radius-lg);
  color: var(--white);
  font-weight: 500;
  z-index: 9999;
  transform: translateX(120%);
  transition: transform 0.3s ease;
}
.toast.show { transform: translateX(0); }
.toast-success { background: var(--primary); }
.toast-error { background: #D32F2F; }

/* --- Back to Top --- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 45px;
  height: 45px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--accent); transform: translateY(-3px); }

/* --- WhatsApp Float --- */
.whatsapp-float {
  position: fixed;
  bottom: 90px;
  right: 30px;
  width: 55px;
  height: 55px;
  background: #25D366;
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 4px 15px rgba(37,211,102,0.4);
  z-index: 999;
  transition: var(--transition);
}
.whatsapp-float:hover { transform: scale(1.1); }