/* Main CSS */
:root {
  /* Colors */
  --primary: #0056b3;
  --primary-dark: #003d82;
  --accent: #ff6600;
  --accent-dark: #e65c00;
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-light: #ffffff;
  --bg-light: #f8f9fa;
  --bg-dark: #343a40;
  --border-color: #dee2e6;
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  --info: #17a2b8;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Font sizes */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-xxl: 2rem;
  --font-size-xxxl: 2.5rem;
  
  /* Border radius */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Typography */
h1 {
  font-size: var(--font-size-xxxl);
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: var(--font-size-xxl);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
}

.text-primary {
  color: var(--primary);
}

.text-accent {
  color: var(--accent);
}

.text-secondary {
  color: var(--text-secondary);
}

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

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-xxl) 0;
}

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

.bg-dark {
  background-color: var(--bg-dark);
  color: var(--text-light);
}

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

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

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-5 {
  grid-template-columns: repeat(5, 1fr);
}

.flex {
  display: flex;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.gap-2 {
  gap: var(--spacing-md);
}

.gap-3 {
  gap: var(--spacing-lg);
}

.gap-4 {
  gap: var(--spacing-xl);
}

.mt-2 {
  margin-top: var(--spacing-md);
}

.mt-3 {
  margin-top: var(--spacing-lg);
}

.mt-4 {
  margin-top: var(--spacing-xl);
}

.mt-5 {
  margin-top: var(--spacing-xxl);
}

.mb-2 {
  margin-bottom: var(--spacing-md);
}

.mb-3 {
  margin-bottom: var(--spacing-lg);
}

.mb-4 {
  margin-bottom: var(--spacing-xl);
}

.mr-2 {
  margin-right: var(--spacing-md);
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background-color: white;
  box-shadow: var(--shadow-sm);
  z-index: 100;
  padding: var(--spacing-md) 0;
}

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

.logo-container {
  display: flex;
  align-items: center;
}

.logo {
  height: 40px;
  width: auto;
}

.logo-container .slogan{
  margin-left: var(--spacing-sm);
  font-size: 1.3rem;
  color: var(--text-secondary);
}

.nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  margin-right: var(--spacing-lg);
}

.nav-link {
  color: var(--text-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: 500;
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background-color: var(--primary);
  border-radius: var(--border-radius-full);
}

.mobile-menu-btn {
  display: none;
  font-size: var(--font-size-xl);
  color: var(--text-primary);
}

.mobile-menu {
  /* display: none; */
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: white;
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
}

.mobile-menu .nav-links {
  flex-direction: row;
  justify-content: space-around;
}

.mobile-menu .nav-link {
  padding: var(--spacing-md) 0;
}

.hidden {
  display: none;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  font-weight: 500;
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-light);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  color: var(--text-light);
}

.btn-accent {
  background-color: var(--accent);
  color: var(--text-light);
}

.btn-accent:hover {
  background-color: var(--accent-dark);
  color: var(--text-light);
}

.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: var(--primary);
  color: var(--text-light);
}

/* Hero Section */
.hero {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-light);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 600px;
}

.hero-content h1 {
  font-size: var(--font-size-xxxl);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.hero-content p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

.hero-image {
  position: relative;
}

/* Section Styling */
.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-title h2 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.section-title p {
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* Cards */
.card {
  background-color: white;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 86, 179, 0.1);
  border-radius: var(--border-radius-full);
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

.card-title {
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

/* Feature List */
.feature-list {
  margin-top: var(--spacing-lg);
}

.feature-item {
  margin-bottom: var(--spacing-md);
}

.feature-item h4 {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-xs);
}

.feature-item p {
  color: var(--text-secondary);
  padding-left: calc(var(--font-size-lg) + var(--spacing-md));
}

/* Content with Image */
.content-with-image {
  align-items: center;
}

.image-container {
  overflow: hidden;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

.rounded-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius-md);
  transition: transform var(--transition-slow);
}

.image-container:hover .rounded-image {
  transform: scale(1.05);
}

/* Process Steps */
.process-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin: var(--spacing-xxl) 0;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 2;
  flex: 1;
}

.step-number {
  width: 50px;
  height: 50px;
  background-color: var(--primary);
  color: white;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  margin-bottom: var(--spacing-md);
}

.step-content {
  max-width: 200px;
}

.step-connector {
  position: relative;
  height: 2px;
  background-color: var(--primary);
  flex: 1;
  top: 25px;
  margin: 0 10px;
}

/* Tables */
.channel-table, .process-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
}

.channel-row, .process-row {
  border-bottom: 1px solid var(--border-color);
}

.channel-cell, .process-cell {
  padding: var(--spacing-md);
  text-align: center;
}

.channel-cell.header, .process-cell.header {
  font-weight: bold;
  background-color: var(--primary);
  color: white;
}

.channel-cell ul, .process-cell ul {
  text-align: left;
  padding-left: var(--spacing-lg);
  list-style-type: disc;
}

.channel-cell li, .process-cell li {
  margin-bottom: var(--spacing-xs);
}

/* Case Studies */
.case-slider {
  position: relative;
  overflow: hidden;
  margin: var(--spacing-lg) 0;
}

.case-slide {
  display: none;
}

.case-slide.active {
  display: block;
}

.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.slider-prev, .slider-next {
  background-color: var(--primary);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 var(--spacing-md);
}

.slider-dots {
  display: flex;
  align-items: center;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: var(--border-radius-full);
  background-color: var(--border-color);
  margin: 0 var(--spacing-xs);
  cursor: pointer;
}

.dot.active {
  background-color: var(--primary);
  width: 12px;
  height: 12px;
}

.case-stats {
  margin-top: var(--spacing-md);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-value {
  font-size: var(--font-size-xl);
  font-weight: bold;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  color: var(--text-secondary);
}

/* Case Study Cards */
.case-study-card {
  background-color: white;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.case-study-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.case-header {
  background-color: var(--primary);
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.case-tag {
  background-color: rgba(255, 255, 255, 0.2);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
}

.case-content {
  padding: var(--spacing-lg);
}

.case-results {
  margin-top: var(--spacing-md);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

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

.result-value {
  font-size: var(--font-size-xl);
  font-weight: bold;
  display: block;
  margin-bottom: var(--spacing-xs);
}

.result-label {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* Interactive Showcase */
.interactive-items {
  display: grid;
  /* grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); */
  gap: var(--spacing-lg);
}

.interactive-item {
  text-align: center;
  transition: transform var(--transition-normal);
}

.interactive-item:hover {
  transform: translateY(-10px);
}

.interactive-image-container {
  /* overflow: hidden;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-md); */
}

.interactive-image {
  width: 100%;
  height: auto;
  transition: transform var(--transition-normal);
}

.interactive-item:hover .interactive-image {
  transform: scale(1.05);
}

/* CTA Section */
.cta-section {
  background-color: var(--primary);
  color: white;
  text-align: center;
  padding: var(--spacing-xxl) 0;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.cta-section h2 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-lg);
}

.cta-section .btn-accent {
  background-color: var(--accent);
  color: white;
}

.cta-section .btn-outline {
  border-color: white;
  color: white;
}

.cta-section .btn-outline:hover {
  background-color: white;
  color: var(--primary);
}

/* Page Header */
.page-header {
  background-color: var(--primary);
  color: white;
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.page-header .containers {
  margin: 0 auto; 
  display: flex; 
  flex-direction: row; 
  justify-content: space-between; 
  align-items: center;
}

.page-title {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.page-description {
  color: rgba(255, 255, 255, 0.9);
  max-width: 700px;
  margin: 0 auto;
}

/* Platform Items */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.platform-item {
  background-color: white;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.platform-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.platform-icon {
  margin-bottom: var(--spacing-md);
}

/* Feature Cards */
.feature-card {
  display: flex;
  align-items: flex-start;
  background-color: white;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  margin-right: var(--spacing-lg);
  color: var(--primary);
}

.feature-content h3 {
  margin-bottom: var(--spacing-sm);
}

/* Contact Cards */
.contact-card {
  background-color: white;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.contact-icon {
  margin-bottom: var(--spacing-md);
}

.qr-code-container {
  width: 150px;
  height: 150px;
  margin: 0 auto;
}

.qr-code {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Contact Form */
.contact-form-container {
  max-width: 800px;
  margin: 0 auto;
}

.contact-form {
  background-color: white;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  transition: border-color var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.required {
  color: var(--danger);
}

/* FAQ */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  cursor: pointer;
}

.faq-question h3 {
  margin: 0;
}

.faq-toggle {
  color: var(--primary);
}

.faq-answer {
  padding: 0 0 var(--spacing-md);
  display: none;
}

.faq-answer.active {
  display: block;
}

/* Footer */
.footer {
  background-color: var(--bg-dark);
  color: white;
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-title {
  color: white;
  margin-bottom: var(--spacing-md);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 2px;
  background-color: var(--accent);
}

.footer-links {
  display: flex;
  flex-direction: column;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-sm);
  transition: color var(--transition-normal);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background-color: var(--primary);
  color: white;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 99;
}

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

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

.back-to-top:hover {
  background-color: var(--primary-dark);
}

/* Animations */
.fade-in {
  opacity: 0;
  animation: fadeIn 1s ease forwards;
}

.slide-up {
  opacity: 0;
  transform: translateY(30px);
  animation: slideUp 1s ease forwards;
}

.animate-on-scroll {
  /* opacity: 0; */
  transform: translateY(30px);
  transition: opacity 1s ease, transform 1s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}


/* 悬浮客服按钮样式 */
.floating-service {
    position: fixed;
    right: 20px;
    top: 63%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.service-button {
    background-color: #1e88e5;
    color: white;
    padding: 12px 15px;
    border-radius: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.service-button:hover {
    background-color: #1565c0;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.service-button i {
    font-size: 20px;
    margin-right: 8px;
}

.service-button span {
    font-size: 14px;
    font-weight: bold;
}

/* 客服选项样式 */
.service-options {
    display: flex;
    flex-direction: column;
    margin-top: 10px;
}

.service-option {
    background-color: white;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 10px;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    position: relative;
    transition: all 0.3s ease;
}

.service-option:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.service-option i {
    font-size: 22px;
}

/* 特定服务图标颜色 */
.telegram i {
    color: #0088cc;
}

.whatsapp i {
    color: #25D366;
}

.email i {
    color: #D44638;
}

/* 二维码弹出框样式 */

.service-option p{
  margin-bottom: 0;
}

.qr-popup, .email-popup {
    position: absolute;
    right: 45px;
    background-color: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    display: none;
    z-index: 1001;
    min-width: 180px;
    text-align: center;
}

.qr-popup img {
    width: 150px;
    height: 150px;
    margin: 0 auto;
    margin-bottom: 10px;
}

.qr-popup p, .email-popup p {
    font-size: 14px;
    color: #555;
}

.email-popup {
    padding: 10px 15px;
    width: auto;
    white-space: nowrap;
}

/* 显示二维码和邮箱的悬浮效果 */
.service-option:hover .qr-popup,
.service-option:hover .email-popup {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .floating-service {
        right: 10px;
    }
    
    .service-button {
        padding: 10px;
    }
    
    .service-button span {
        display: none;
    }
    
    .service-button i {
        margin-right: 0;
    }
    
    .service-option {
        width: 40px;
        height: 40px;
    }
    
    .qr-popup, .email-popup {
        right: 50px;
        width: 150px;
    }
    
    .qr-popup img {
        width: 120px;
        height: 120px;
    }
}