/* ============================================
   DESIGN SYSTEM - Corporate Industrial Website
   Primary: #8B0000 (Dark Red)
   Secondary: #2E5A2E (Dark Green)
   Background: #F5F5F5 (Light Gray)
   ============================================ */

:root {
  /* Colors */
  --color-primary: #8B0000;
  --color-primary-light: #A52A2A;
  --color-primary-dark: #5C0000;
  --color-secondary: #2E5A2E;
  --color-secondary-light: #3D7A3D;
  --color-secondary-dark: #1E3A1E;
  --color-bg: #F5F5F5;
  --color-bg-white: #FFFFFF;
  --color-bg-dark: #1A1A1A;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-border: #E0E0E0;
  --color-overlay: rgba(0, 0, 0, 0.6);

  /* Typography */
  --font-primary: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-heading: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --fs-hero: clamp(2.5rem, 5vw, 4rem);
  --fs-h1: clamp(2rem, 4vw, 3rem);
  --fs-h2: clamp(1.5rem, 3vw, 2.25rem);
  --fs-h3: clamp(1.25rem, 2vw, 1.5rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-xs: 0.75rem;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.15);
  --shadow-primary: 0 4px 16px rgba(139, 0, 0, 0.2);

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 70px;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg-white);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--color-primary);
  flex-shrink: 0;
}

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  transition: var(--transition);
}

.nav-menu.hidden {
  display: none;
}

.nav-menu a {
  font-size: var(--fs-body);
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: var(--space-sm) 0;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-primary);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-social {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  color: var(--color-text-light);
  transition: var(--transition-fast);
}

.nav-social a:hover {
  color: var(--color-primary);
  background: rgba(139, 0, 0, 0.08);
}

.nav-social svg {
  width: 18px;
  height: 18px;
}

.nav-search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  color: var(--color-text-light);
  transition: var(--transition-fast);
}

.nav-search-btn:hover {
  color: var(--color-primary);
  background: rgba(139, 0, 0, 0.08);
}

.nav-search-btn svg {
  width: 20px;
  height: 20px;
}

/* Search Bar */
.nav-search-bar {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  flex: 1;
  max-width: 500px;
  animation: fadeIn 0.3s ease;
}

.nav-search-bar.active {
  display: flex;
}

.nav-search-bar input {
  width: 200px;
  height: 38px;
  padding: 0 var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  outline: none;
  font-size: var(--fs-small);
  transition: var(--transition-fast);
}

.nav-search-bar input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.1);
}

.nav-search-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  color: var(--color-text-light);
  transition: var(--transition-fast);
}

.nav-search-close:hover {
  color: var(--color-primary);
  background: rgba(139, 0, 0, 0.08);
}

.nav-search-close svg {
  width: 20px;
  height: 20px;
}

/* Hamburger Menu */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: 1001;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

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

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

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

/* Mobile Menu */
.nav-mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 999;
  opacity: 0;
  transition: var(--transition);
}

.nav-mobile-overlay.active {
  display: block;
  opacity: 1;
}

.nav-mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100vh;
  background: var(--color-bg-white);
  padding: calc(var(--nav-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
  transition: var(--transition);
  z-index: 1000;
  overflow-y: auto;
}

.nav-mobile-menu.active {
  display: block;
  right: 0;
}

.nav-mobile-menu a {
  display: block;
  padding: var(--space-md) 0;
  font-size: var(--fs-body);
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.nav-mobile-menu a:hover,
.nav-mobile-menu a.active {
  color: var(--color-primary);
}

/* ============================================
   HERO / BANNER CAROUSEL
   ============================================ */
.hero-banner {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 500px;
  max-height: 800px;
  margin-top: var(--nav-height);
  overflow: hidden;
}

.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.banner-slide.active {
  opacity: 1;
}

.banner-slide img,
.banner-slide video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-slide .banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(139, 0, 0, 0.7), rgba(46, 90, 46, 0.5));
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner-content {
  text-align: center;
  color: #fff;
  padding: var(--space-xl);
  max-width: 700px;
}

.banner-content h1 {
  font-size: var(--fs-hero);
  font-weight: 800;
  margin-bottom: var(--space-md);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  line-height: 1.2;
}

.banner-content p {
  font-size: var(--fs-h3);
  margin-bottom: var(--space-xl);
  opacity: 0.9;
}

.banner-content .btn {
  display: inline-block;
  padding: var(--space-md) var(--space-2xl);
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: var(--transition);
  border: 2px solid transparent;
}

.banner-content .btn:hover {
  background: transparent;
  border-color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Banner Dots */
.banner-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-sm);
}

.banner-dots span {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition-fast);
}

.banner-dots span.active {
  background: #fff;
  width: 30px;
}

/* ============================================
   SECTION COMMONS
   ============================================ */
.section {
  padding: var(--space-4xl) 0;
}

.section-bg {
  background: var(--color-bg);
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title h2 {
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.section-title p {
  font-size: var(--fs-body);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

.section-title .title-line {
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-primary);
  margin: var(--space-md) auto 0;
  border-radius: var(--radius-full);
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.product-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.product-tab {
  padding: var(--space-sm) var(--space-xl);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-full);
  font-weight: 600;
  color: var(--color-primary);
  transition: var(--transition-fast);
  cursor: pointer;
}

.product-tab.active,
.product-tab:hover {
  background: var(--color-primary);
  color: #fff;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.product-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.product-card-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--color-bg);
}

.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-card-img img {
  transform: scale(1.08);
}

.product-card-info {
  padding: var(--space-lg);
  text-align: center;
}

.product-card-info h3 {
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--color-text);
}

/* ============================================
   ABOUT US SECTION
   ============================================ */
.about-section {
  position: relative;
  padding: var(--space-4xl) 0;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.about-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 26, 26, 0.85), rgba(46, 90, 46, 0.75));
}

.about-content {
  position: relative;
  z-index: 1;
  color: #fff;
}

.about-text {
  max-width: 700px;
  margin-bottom: var(--space-3xl);
}

.about-text h2 {
  font-size: var(--fs-h2);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.about-text .company-name {
  font-size: var(--fs-h3);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-lg);
}

.about-text p {
  font-size: var(--fs-body);
  line-height: 1.8;
  opacity: 0.9;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.stat-item {
  text-align: center;
  padding: var(--space-xl);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.stat-item .stat-number {
  font-size: var(--fs-h1);
  font-weight: 800;
  color: #fff;
  margin-bottom: var(--space-xs);
}

.stat-item .stat-label {
  font-size: var(--fs-small);
  color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   ADVANTAGES SECTION
   ============================================ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.advantage-card {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.advantage-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.advantage-card .icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  color: #fff;
}

.advantage-card .icon svg {
  width: 32px;
  height: 32px;
}

.advantage-card h3 {
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.advantage-card p {
  font-size: var(--fs-small);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ============================================
   APPLICATION SCENES
   ============================================ */
.app-scenes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: var(--space-md);
}

.app-scene-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}

.app-scene-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.app-scene-item:hover img {
  transform: scale(1.05);
}

.app-scene-item.large {
  grid-row: span 2;
  min-height: 400px;
}

.app-scene-item:not(.large) {
  height: 195px;
}

.app-scene-item .scene-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-lg);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: #fff;
}

.app-scene-item .scene-overlay h4 {
  font-size: var(--fs-body);
  font-weight: 600;
}

/* ============================================
   NEWS SECTION
   ============================================ */
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}

.news-column h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary);
}

.news-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-fast);
}

.news-item:hover {
  padding-left: var(--space-sm);
}

.news-item .news-date {
  flex-shrink: 0;
  width: 60px;
  text-align: center;
  color: var(--color-primary);
}

.news-item .news-date .day {
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: 1;
}

.news-item .news-date .month {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.news-item .news-info h4 {
  font-size: var(--fs-body);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  line-height: 1.4;
}

.news-item .news-info p {
  font-size: var(--fs-small);
  color: var(--color-text-light);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================
   CONTACT / MESSAGE FORM
   ============================================ */
.contact-form-section {
  background: var(--color-bg);
  padding: var(--space-4xl) 0;
}

.contact-form {
  max-width: 700px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.contact-form .form-group {
  display: flex;
  flex-direction: column;
}

.contact-form .form-group.full-width {
  grid-column: span 2;
}

.contact-form label {
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.contact-form input,
.contact-form textarea {
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition-fast);
  background: var(--color-bg-white);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.1);
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn-submit {
  grid-column: span 2;
  padding: var(--space-md) var(--space-2xl);
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: var(--fs-body);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  justify-self: center;
}

.contact-form .btn-submit:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-primary);
  transform: translateY(-2px);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-bg-dark);
  color: #fff;
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-col h4 {
  font-size: var(--fs-body);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: #fff;
}

.footer-col p {
  font-size: var(--fs-small);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}

.footer-col a {
  display: block;
  font-size: var(--fs-small);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-xs) 0;
  transition: var(--transition-fast);
}

.footer-col a:hover {
  color: #fff;
  padding-left: var(--space-sm);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-xl);
  text-align: center;
  font-size: var(--fs-small);
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   INNER PAGE BANNER
   ============================================ */
.page-banner {
  margin-top: var(--nav-height);
  height: 300px;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(139, 0, 0, 0.8), rgba(46, 90, 46, 0.6));
}

.page-banner h1 {
  position: relative;
  z-index: 1;
  color: #fff;
  font-size: var(--fs-h1);
  font-weight: 700;
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-intro-text h2 {
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.about-intro-text p {
  font-size: var(--fs-body);
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.about-intro-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-intro-img img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-primary);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-2xl);
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-item .timeline-content {
  width: 45%;
  padding: var(--space-lg);
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.timeline-item .timeline-content h3 {
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.timeline-item .timeline-content p {
  font-size: var(--fs-small);
  color: var(--color-text-light);
}

.timeline-item .timeline-dot {
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  border: 3px solid var(--color-bg-white);
  box-shadow: var(--shadow-sm);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

/* Team Grid */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.team-card {
  text-align: center;
  padding: var(--space-xl);
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.team-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.team-card img {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-full);
  margin: 0 auto var(--space-md);
  object-fit: cover;
}

.team-card h4 {
  font-size: var(--fs-body);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.team-card p {
  font-size: var(--fs-small);
  color: var(--color-text-light);
}

/* ============================================
   PRODUCTS PAGE
   ============================================ */
.products-filter {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.products-page-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.product-page-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.product-page-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.product-page-card .card-img {
  width: 100%;
  height: 250px;
  overflow: hidden;
  background: var(--color-bg);
}

.product-page-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-page-card:hover .card-img img {
  transform: scale(1.08);
}

.product-page-card .card-body {
  padding: var(--space-lg);
}

.product-page-card .card-body h3 {
  font-size: var(--fs-body);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.product-page-card .card-body p {
  font-size: var(--fs-small);
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.product-page-card .card-body .btn-detail {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  font-size: var(--fs-small);
  font-weight: 500;
  transition: var(--transition-fast);
}

.product-page-card .card-body .btn-detail:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-primary);
}

/* ============================================
   SERVICES PAGE
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.service-card {
  padding: var(--space-2xl);
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
  text-align: center;
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-secondary);
}

.service-card .service-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-light));
  border-radius: var(--radius-lg);
  color: #fff;
}

.service-card .service-icon svg {
  width: 36px;
  height: 36px;
}

.service-card h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.service-card p {
  font-size: var(--fs-small);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact-info-item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.contact-info-item .info-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-md);
  color: #fff;
}

.contact-info-item .info-icon svg {
  width: 24px;
  height: 24px;
}

.contact-info-item .info-text h4 {
  font-size: var(--fs-body);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.contact-info-item .info-text p {
  font-size: var(--fs-small);
  color: var(--color-text-light);
}

.contact-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
}

.contact-map img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================
   NEWS PAGE
   ============================================ */
.news-list {
  display: grid;
  gap: var(--space-xl);
}

.news-list-item {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-xl);
  padding: var(--space-xl);
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.news-list-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.news-list-item .news-thumb {
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 180px;
}

.news-list-item .news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-list-item .news-body h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.news-list-item .news-body .news-meta {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.news-list-item .news-body p {
  font-size: var(--fs-body);
  color: var(--color-text-light);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-list-item .news-body .btn-read-more {
  display: inline-block;
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  color: var(--color-primary);
  font-weight: 500;
  font-size: var(--fs-small);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.news-list-item .news-body .btn-read-more:hover {
  background: var(--color-primary);
  color: #fff;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

.fade-in-delay-1 { animation-delay: 0.1s; }
.fade-in-delay-2 { animation-delay: 0.2s; }
.fade-in-delay-3 { animation-delay: 0.3s; }
.fade-in-delay-4 { animation-delay: 0.4s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 60px;
  }

  .nav-menu {
    display: none;
  }

  .nav-social {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-search-bar input {
    width: 120px;
  }

  .hero-banner {
    height: 60vh;
    min-height: 400px;
  }

  .banner-content h1 {
    font-size: clamp(1.5rem, 5vw, 2.5rem);
  }

  .banner-content p {
    font-size: var(--fs-body);
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .app-scenes-grid {
    grid-template-columns: 1fr;
  }

  .app-scene-item.large {
    grid-row: span 1;
    min-height: 250px;
  }

  .app-scene-item:not(.large) {
    height: 200px;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .contact-form {
    grid-template-columns: 1fr;
  }

  .contact-form .form-group.full-width {
    grid-column: span 1;
  }

  .contact-form .btn-submit {
    grid-column: span 1;
  }

  .about-intro {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .products-page-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-list-item {
    grid-template-columns: 1fr;
  }

  .news-list-item .news-thumb {
    height: 200px;
  }

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

  .page-banner {
    height: 200px;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item,
  .timeline-item:nth-child(odd) {
    flex-direction: row;
    padding-left: 50px;
  }

  .timeline-item .timeline-content {
    width: 100%;
  }

  .timeline-item .timeline-dot {
    left: 20px;
  }

   /* 新增这一行 */
  .about-stats {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 480px) {
  .product-grid {
    grid-template-columns: 1fr;
  }

  .products-page-grid {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .stat-item .stat-number {
    font-size: var(--fs-h2);
  }
}

/* ============================================
   TWO-COLUMN LAYOUT (Sidebar + Main Content)
   ============================================ */
.page-layout {
  display: flex;
  gap: 30px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-xl);
}

.page-layout .sidebar {
  width: 280px;
  flex-shrink: 0;
}

.page-layout .main-content {
  flex: 1;
  min-width: 0;
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
  font-size: 14px;
  color: #888;
  padding: 10px 0;
  margin-bottom: 20px;
}

.breadcrumb a {
  color: #888;
  text-decoration: none;
  transition: var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb .separator {
  margin: 0 8px;
  color: #ccc;
}

.breadcrumb .current {
  color: var(--color-primary);
  font-weight: 500;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
  background: #f8f8f8;
  padding: 20px;
  border-radius: 8px;
}

.sidebar-section {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #e0e0e0;
}

.sidebar-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.sidebar-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text);
}

.sidebar-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-list li {
  padding: 0;
}

.sidebar-list li a,
.sidebar-list .sidebar-item {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid #f0f0f0;
  color: var(--color-text-light);
  font-size: 14px;
  transition: var(--transition-fast);
  text-decoration: none;
}

.sidebar-list li a:hover,
.sidebar-list .sidebar-item:hover {
  color: var(--color-primary);
}

.sidebar-list li a.active,
.sidebar-list .sidebar-item.active {
  color: var(--color-primary);
  font-weight: 600;
  border-left: 3px solid var(--color-primary);
  padding-left: 12px;
  margin-left: -12px;
}

.sidebar-list li:last-child a,
.sidebar-list li:last-child .sidebar-item {
  border-bottom: none;
}

/* Sidebar Contact Info */
.sidebar-contact p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 8px;
  line-height: 1.6;
}

.sidebar-contact p strong {
  color: var(--color-text);
}

/* ============================================
   HOT PRODUCTS (Sidebar)
   ============================================ */
.hot-product-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.hot-product-item {
  display: flex;
  gap: 12px;
  margin-bottom: 15px;
  padding: 10px;
  border-radius: 8px;
  transition: var(--transition-fast);
  cursor: pointer;
}

.hot-product-item:hover {
  background: #f0f0f0;
}

.hot-product-item:last-child {
  margin-bottom: 0;
}

.hot-product-img {
  width: 80px;
  height: 80px;
  background: #e0e0e0;
  border-radius: 8px;
  flex-shrink: 0;
  overflow: hidden;
}

.hot-product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hot-product-info {
  flex: 1;
  min-width: 0;
}

.hot-product-name {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--color-text);
  transition: var(--transition-fast);
}

.hot-product-name a {
  color: inherit;
  text-decoration: none;
}

.hot-product-item:hover .hot-product-name,
.hot-product-name a:hover {
  color: var(--color-primary);
}

.hot-product-desc {
  font-size: 12px;
  color: #666;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================
   HOT ARTICLES (Sidebar)
   ============================================ */
.hot-article-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.hot-article-item {
  padding: 10px 0;
  border-bottom: 1px solid #f0f0f0;
}

.hot-article-item:last-child {
  border-bottom: none;
}

.hot-article-title {
  font-size: 14px;
  color: var(--color-text);
  text-decoration: none;
  display: block;
  margin-bottom: 4px;
  transition: var(--transition-fast);
  line-height: 1.4;
}

.hot-article-title:hover {
  color: var(--color-primary);
}

.hot-article-date {
  font-size: 12px;
  color: #999;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
  text-align: center;
  margin-top: 40px;
  padding: 20px 0;
}

.page-btn {
  display: inline-block;
  min-width: 36px;
  height: 36px;
  line-height: 36px;
  padding: 0 12px;
  text-align: center;
  border: 1px solid #ddd;
  border-radius: 4px;
  margin: 0 4px;
  cursor: pointer;
  transition: var(--transition-fast);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg-white);
  text-decoration: none;
}

.page-btn:hover:not(.disabled):not(.active) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.page-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  font-weight: 600;
}

.page-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================
   PRODUCT DETAIL PAGE
   ============================================ */
.product-detail-title {
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.product-detail-model {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

.product-gallery {
  margin-bottom: var(--space-2xl);
}

.product-gallery .main-image {
  width: 100%;
  height: 400px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-md);
  border: 1px solid var(--color-border);
}

.product-gallery .main-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-gallery .thumb-list {
  display: flex;
  gap: var(--space-sm);
}

.product-gallery .thumb-item {
  width: 80px;
  height: 80px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-fast);
}

.product-gallery .thumb-item:hover,
.product-gallery .thumb-item.active {
  border-color: var(--color-primary);
}

.product-gallery .thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-params {
  margin-bottom: var(--space-2xl);
}

.product-params h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.params-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.params-table tr:nth-child(even) {
  background: var(--color-bg);
}

.params-table td {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border);
}

.params-table td:first-child {
  font-weight: 600;
  color: var(--color-text);
  width: 140px;
  background: rgba(139, 0, 0, 0.03);
}

.params-table td:last-child {
  color: var(--color-text-light);
}

.product-description {
  margin-bottom: var(--space-2xl);
}

.product-description h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.product-description p {
  font-size: var(--fs-body);
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.related-products {
  margin-bottom: var(--space-2xl);
}

.related-products h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.related-products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* ============================================
   NEWS DETAIL PAGE
   ============================================ */
.news-detail-title {
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.news-detail-meta {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.news-detail-content {
  margin-bottom: var(--space-2xl);
}

.news-detail-content p {
  font-size: var(--fs-body);
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: var(--space-lg);
}

.news-detail-content img {
  width: 100%;
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
}

.news-nav {
  display: flex;
  justify-content: space-between;
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-2xl);
}

.news-nav a {
  font-size: var(--fs-small);
  color: var(--color-text-light);
  transition: var(--transition-fast);
  max-width: 45%;
}

.news-nav a:hover {
  color: var(--color-primary);
}

.news-nav .label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.related-news {
  margin-bottom: var(--space-2xl);
}

.related-news h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.related-news-list {
  list-style: none;
  padding: 0;
}

.related-news-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.related-news-list li:last-child {
  border-bottom: none;
}

.related-news-list li a {
  font-size: 14px;
  color: var(--color-text);
  transition: var(--transition-fast);
}

.related-news-list li a:hover {
  color: var(--color-primary);
}

/* ============================================
   SEARCH PAGE
   ============================================ */
.search-header {
  margin-bottom: var(--space-2xl);
}

.search-header h2 {
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--color-text);
}

.search-header h2 span {
  color: var(--color-primary);
}

.search-results-section {
  margin-bottom: var(--space-2xl);
}

.search-results-section h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary);
}

.search-products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.search-news-list {
  list-style: none;
  padding: 0;
}

.search-news-list li {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.search-news-list li:last-child {
  border-bottom: none;
}

.search-news-list li a {
  font-size: var(--fs-body);
  font-weight: 500;
  color: var(--color-text);
  display: block;
  margin-bottom: 4px;
  transition: var(--transition-fast);
}

.search-news-list li a:hover {
  color: var(--color-primary);
}

.search-news-list li .search-news-meta {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.search-news-list li .search-news-summary {
  font-size: var(--fs-small);
  color: var(--color-text-light);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.no-results {
  text-align: center;
  padding: var(--space-4xl) 0;
}

.no-results p {
  font-size: var(--fs-h3);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

.no-results .btn-home {
  display: inline-block;
  padding: var(--space-md) var(--space-2xl);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: var(--transition);
}

.no-results .btn-home:hover {
  background: var(--color-primary-dark);
}

/* ============================================
   SIDEBAR FORM (Contact page sidebar)
   ============================================ */
.sidebar-form .form-group {
  margin-bottom: 15px;
}

.sidebar-form label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 5px;
  color: var(--color-text);
}

.sidebar-form input,
.sidebar-form textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
  outline: none;
  transition: var(--transition-fast);
}

.sidebar-form input:focus,
.sidebar-form textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(139, 0, 0, 0.1);
}

.sidebar-form textarea {
  resize: vertical;
  min-height: 80px;
}

.sidebar-form .btn-submit {
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  width: 100%;
  transition: var(--transition-fast);
}

.sidebar-form .btn-submit:hover {
  background: var(--color-primary-dark);
}

/* ============================================
   RESPONSIVE - Two Column Layout
   ============================================ */
@media (max-width: 1024px) {
  .related-products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .page-layout {
    flex-direction: column;
    padding: var(--space-lg) var(--space-md);
  }

  .page-layout .sidebar {
display: none;  /* 移动端隐藏侧边栏 */
  }

  .page-layout .main-content {
    width: 100%;
  }

  .product-gallery .main-image {
    height: 260px;
  }

  .related-products-grid {
    grid-template-columns: 1fr;
  }

  .search-products-grid {
    grid-template-columns: 1fr;
  }

  .news-nav {
    flex-direction: column;
    gap: var(--space-md);
  }

  .news-nav a {
    max-width: 100%;
  }

  .page-btn {
    min-width: 32px;
    height: 32px;
    line-height: 32px;
    margin: 0 2px;
    padding: 0 8px;
    font-size: 13px;
  }

  .products-page-grid {
    grid-template-columns: 1fr 1fr;
  }
}


/* ============================================
   CONTACT PAGE STYLES (添加于 2025-06-05)
   ============================================ */

/* 两栏布局：左侧联系方式，右侧地图 */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-bottom: 50px;
}

/* 地图容器 */
.contact-map {
  width: 100%;
  min-height: 400px;
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  min-height: 400px;
  display: block;
}

/* 响应式：移动端改为单栏 */
@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}