/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Custom Properties for Modern Design System */
:root {
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Microsoft YaHei", sans-serif;

  /* Colors - Light Modern HSL Palette */
  --bg-dark: hsl(220, 30%, 97%);
  --bg-card: hsla(220, 30%, 100%, 0.75);
  --bg-card-hover: hsla(220, 30%, 100%, 0.95);
  
  --primary: hsl(215, 95%, 52%);
  --primary-glow: hsla(215, 95%, 52%, 0.12);
  --secondary: hsl(198, 90%, 45%);
  --secondary-glow: hsla(198, 90%, 45%, 0.12);
  --accent: hsl(210, 100%, 45%);
  
  --text-primary: hsl(220, 40%, 12%);
  --text-secondary: hsl(220, 20%, 38%);
  --text-muted: hsl(220, 15%, 55%);
  
  --border-color: hsla(220, 20%, 85%, 0.7);
  --border-hover: hsla(215, 95%, 52%, 0.4);
  
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-dark: linear-gradient(180deg, hsl(215, 40%, 93%) 0%, var(--bg-dark) 100%);
  --gradient-glow: radial-gradient(circle at 50% 50%, hsla(215, 95%, 52%, 0.08), transparent 60%);

  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
  
  --shadow-sm: 0 2px 8px -2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 45px -15px rgba(20, 30, 60, 0.12);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  background-image: var(--gradient-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Glow Background Effects */
.bg-glow-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.25;
  animation: orb-float 20s infinite alternate ease-in-out;
}

.glow-orb-1 {
  top: -10%;
  right: 10%;
  width: 45vw;
  height: 45vw;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.glow-orb-2 {
  bottom: -10%;
  left: 5%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
  animation-delay: -5s;
}

.glow-orb-3 {
  top: 40%;
  left: 30%;
  width: 30vw;
  height: 30vw;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  animation-delay: -10s;
  opacity: 0.15;
}

@keyframes orb-float {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(4% , 5%) scale(1.1); }
  100% { transform: translate(-2%, -3%) scale(0.95); }
}

/* Typography Utility */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header & Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  z-index: 100;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  height: 70px;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  text-decoration: none;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: inline-block;
  box-shadow: 0 0 12px var(--secondary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-fast);
}

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

.nav-btn {
  background: var(--gradient-primary);
  color: #fff !important;
  padding: 0.6rem 1.4rem;
  border-radius: 30px;
  font-weight: 600;
  box-shadow: 0 4px 15px var(--primary-glow);
  transition: var(--transition-smooth) !important;
}

.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--primary-glow);
}

.nav-btn::after {
  display: none !important;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--text-primary);
  margin: 5px 0;
  transition: var(--transition-fast);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  text-decoration: none;
  transition: var(--transition-smooth);
  cursor: pointer;
  border: none;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 8px 24px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px var(--primary-glow);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  padding-top: 140px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: hsla(250, 100%, 65%, 0.1);
  border: 1px solid hsla(250, 100%, 65%, 0.2);
  color: hsl(250, 100%, 80%);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background-color: var(--secondary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--secondary);
}

.hero h1 {
  font-size: clamp(2.5rem, 4vw, 4rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Floating Interactive Tech Card/Globe Demo */
.visual-card {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 1;
  background: var(--bg-card);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2.5rem;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.visual-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 30px 60px -20px var(--primary-glow);
}

.visual-circle {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1px dashed hsla(190, 100%, 45%, 0.3);
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: spin 30s linear infinite;
}

.visual-inner-circle {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 1px solid hsla(250, 100%, 65%, 0.2);
  display: flex;
  justify-content: center;
  align-items: center;
  animation: spin-reverse 20s linear infinite;
}

.visual-core {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 0 40px var(--primary-glow);
}

.visual-core svg {
  width: 40px;
  height: 40px;
  fill: white;
}

.visual-tag {
  position: absolute;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-sm);
  animation: float 4s ease-in-out infinite alternate;
}

.tag-1 { top: 15%; left: 10%; animation-delay: 0s; }
.tag-2 { bottom: 20%; right: 5%; animation-delay: -1.5s; }
.tag-3 { bottom: 15%; left: 15%; animation-delay: -3s; }

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes spin-reverse {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

@keyframes float {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-10px); }
}

/* Stats Section */
.stats {
  padding: 5rem 0;
  position: relative;
  z-index: 10;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid var(--border-color);
  padding: 3rem;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  font-family: var(--font-heading);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Service Section */
.section {
  padding: 8rem 0;
  position: relative;
  z-index: 10;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 5rem auto;
}

.section-header h2 {
  font-size: clamp(2rem, 3vw, 2.75rem);
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-glow);
  opacity: 0;
  transition: var(--transition-smooth);
  pointer-events: none;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: hsla(250, 100%, 65%, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
  color: var(--primary);
  transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
  background: var(--primary);
  color: #fff;
  transform: scale(1.05);
  box-shadow: 0 8px 20px var(--primary-glow);
}

.service-icon svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.service-card h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
  flex-grow: 1;
}

.service-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  z-index: 1;
}

.service-features-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.service-features-list li svg {
  width: 16px;
  height: 16px;
  fill: var(--secondary);
  flex-shrink: 0;
}

/* Feature/Tech Tabbed Showcase */
.showcase-container {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

.tab-nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.5rem 2rem;
  border-radius: 16px;
  text-align: left;
  cursor: pointer;
  transition: var(--transition-smooth);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.tab-btn:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.tab-btn.active {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 8px 24px var(--primary-glow);
}

.tab-btn.active .tab-icon {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.tab-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: hsla(250, 100%, 65%, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  transition: var(--transition-fast);
}

.tab-btn-title {
  font-weight: 700;
  font-size: 1.1rem;
  display: block;
}

.tab-btn-desc {
  font-size: 0.85rem;
  opacity: 0.8;
  font-weight: 400;
  margin-top: 0.25rem;
}

.showcase-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 3.5rem;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  min-height: 400px;
  position: relative;
  overflow: hidden;
}

.showcase-pane {
  display: none;
  animation: fadeIn 0.5s ease forwards;
}

.showcase-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.showcase-pane h3 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.showcase-pane p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.showcase-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-box {
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  transition: var(--transition-fast);
}

.feature-box:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--border-hover);
}

.feature-box h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-box h4 svg {
  width: 18px;
  height: 18px;
  fill: var(--secondary);
}

.feature-box p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

/* Success Cases Section */
.cases-carousel-container {
  margin-top: 3rem;
  position: relative;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.case-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
}

.case-image-wrapper {
  position: relative;
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, hsl(230, 20%, 15%), hsl(230, 25%, 8%));
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.case-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.case-card:hover .case-image {
  transform: scale(1.06);
}

.case-placeholder-svg {
  width: 40%;
  height: 40%;
  fill: hsla(250, 100%, 65%, 0.15);
  transition: var(--transition-smooth);
}

.case-card:hover .case-placeholder-svg {
  transform: scale(1.1);
  fill: hsla(250, 100%, 65%, 0.3);
}

.case-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.case-tag {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--secondary);
  background: hsla(190, 100%, 45%, 0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  margin-bottom: 1rem;
}

.case-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.case-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.case-stats {
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
  margin-top: auto;
  display: flex;
  justify-content: space-between;
}

.case-stat-val {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--accent);
}

.case-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Interactive Channels / Partner Slider */
.partners {
  padding: 4rem 0;
  background: rgba(0, 0, 0, 0.02);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.partners-title {
  text-align: center;
  font-size: 1rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 2.5rem;
}

.partner-logo-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.partner-logo {
  opacity: 0.4;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.partner-logo:hover {
  opacity: 0.9;
  transform: scale(1.05);
}

.partner-logo svg {
  height: 35px;
  width: auto;
  max-width: 140px;
  fill: currentColor;
}

/* Contact / Form Section */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 5rem;
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: 1.5rem;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: hsla(250, 100%, 65%, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-item-icon svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.contact-item-content h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact-item-content p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.contact-item-content a {
  color: var(--secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.contact-item-content a:hover {
  text-decoration: underline;
}

/* Form Styling with :user-valid validation */
.form-container {
  background: var(--bg-card);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid var(--border-color);
  padding: 3.5rem;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.75rem;
  position: relative;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.9rem 1.25rem;
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.form-control:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--primary);
  box-shadow: 0 0 12px var(--primary-glow);
}

/* Modern Validation Styling */
.form-control:user-invalid {
  border-color: hsl(350, 80%, 60%);
  box-shadow: 0 0 12px hsla(350, 80%, 60%, 0.15);
}

.form-control:user-valid {
  border-color: hsl(150, 80%, 40%);
}

.form-control::placeholder {
  color: var(--text-muted);
}

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

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.form-feedback {
  position: absolute;
  bottom: -1.25rem;
  left: 0;
  font-size: 0.75rem;
  opacity: 0;
  transition: var(--transition-fast);
}

.form-control:user-invalid + .form-feedback {
  color: hsl(350, 80%, 70%);
  opacity: 1;
}

.form-submit-btn {
  width: 100%;
  margin-top: 1rem;
}

/* Footer Section */
.footer {
  background: hsl(220, 25%, 92%);
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 2.5rem 0;
  position: relative;
  z-index: 10;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand .logo {
  margin-bottom: 1.5rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 1.1rem;
  margin-bottom: 1.75rem;
  position: relative;
}

.footer-links h4::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--gradient-primary);
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-links-list a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer-links-list a:hover {
  color: var(--text-primary);
  padding-left: 5px;
}

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.footer-contact-list li svg {
  width: 16px;
  height: 16px;
  fill: var(--primary);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-meta-links {
  display: flex;
  gap: 2rem;
}

.footer-meta-links a {
  text-decoration: none;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.footer-meta-links a:hover {
  color: var(--text-secondary);
}

/* Success Modal / Toast Notify */
.toast {
  position: fixed;
  bottom: 2rem;
  right: -25rem;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-hover);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: var(--transition-smooth);
}

.toast.show {
  right: 2rem;
}

.toast-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: hsla(150, 80%, 40%, 0.2);
  color: hsl(150, 80%, 40%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.toast-icon svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.toast-text h5 {
  font-size: 0.9rem;
  margin: 0;
}

.toast-text p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-visual {
    order: -1;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .showcase-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .footer-grid {
    grid-template-columns: 1.2fr 0.8fr 1fr;
  }
}

@media (max-width: 768px) {
  .navbar .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    flex-direction: column;
    padding: 3rem 2rem;
    gap: 2rem;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
  }
  
  .navbar.menu-open .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .menu-toggle {
    display: block;
  }

  .navbar.menu-open .menu-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .navbar.menu-open .menu-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

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

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
    padding: 2rem;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .form-container {
    padding: 2rem;
  }
}

/* WeChat QR Code Interactions */
.wechat-qr-img {
  transition: var(--transition-smooth);
}
.wechat-qr-img:hover {
  transform: scale(1.18);
  box-shadow: 0 12px 30px rgba(10, 116, 234, 0.2);
  border-color: var(--primary) !important;
}