/* ========================================
   银联商务4G大机 - 墨蓝定免风格
   ======================================== */

/* CSS Variables */
:root {
  --cup-blue: #1A365D;
  --cup-blue-dark: #2D4A6F;
  --loc-green: #10B981;
  --loc-green-light: #34D399;
  --ship-gold: #F59E0B;
  --ship-gold-light: #FBBF24;
  --bg-page: #F0F9FF;
  --bg-white: #FFFFFF;
  --text-dark: #0A1929;
  --text-body: #334155;
  --text-light: #64748B;
  --border-light: #E2E8F0;
  --shadow-sm: 0 1px 2px rgba(26, 54, 93, 0.05);
  --shadow-md: 0 4px 6px rgba(26, 54, 93, 0.1);
  --shadow-lg: 0 10px 25px rgba(26, 54, 93, 0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-body);
  background-color: var(--bg-page);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-dark);
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
.font-dm {
  font-family: 'DM Sans', sans-serif;
}

.text-loc {
  color: var(--loc-green);
}

.text-gold {
  color: var(--ship-gold);
}

.text-cup {
  color: var(--cup-blue);
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-white);
  transition: var(--transition);
}

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

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--cup-blue);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--cup-blue), var(--loc-green));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 14px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}

.nav-links a {
  font-size: 15px;
  color: var(--text-body);
  font-weight: 500;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--loc-green);
  transition: var(--transition);
}

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

.nav-cta {
  background: var(--loc-green);
  color: white !important;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--loc-green-light);
  transform: translateY(-2px);
}

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

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--cup-blue);
  transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--cup-blue) 0%, var(--cup-blue-dark) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
}

.hero-badge {
  display: inline-block;
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid var(--loc-green);
  color: var(--loc-green);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  color: white;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--loc-green), var(--loc-green-light));
  color: white;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-gold {
  background: linear-gradient(135deg, var(--ship-gold), var(--ship-gold-light));
  color: white;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

/* ========================================
   Sections
   ======================================== */
.section {
  padding: 80px 0;
}

.section-title {
  font-size: 36px;
  text-align: center;
  margin-bottom: 16px;
  color: var(--text-dark);
}

.section-subtitle {
  text-align: center;
  font-size: 18px;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 50px;
}

/* ========================================
   Feature Cards
   ======================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-light);
}

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

.feature-card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}

.feature-card-icon.green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--loc-green);
}

.feature-card-icon.gold {
  background: rgba(245, 158, 11, 0.1);
  color: var(--ship-gold);
}

.feature-card-icon.blue {
  background: rgba(26, 54, 93, 0.1);
  color: var(--cup-blue);
}

.feature-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.7;
}

.feature-number {
  font-size: 48px;
  font-weight: 800;
  color: var(--loc-green);
  font-family: 'DM Sans', sans-serif;
  line-height: 1;
  margin-bottom: 8px;
}

/* ========================================
   Asymmetric Cards
   ======================================== */
.asymmetric-grid {
  display: grid;
  gap: 24px;
}

.asymmetric-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.asymmetric-card:hover {
  box-shadow: var(--shadow-md);
}

.asymmetric-card:first-child {
  width: 55%;
}

.asymmetric-card:last-child {
  width: 43%;
  margin-left: auto;
}

.asymmetric-row {
  display: flex;
  gap: 24px;
}

.asymmetric-row .feature-card {
  flex: 1;
}

/* ========================================
   Text Content Block
   ======================================== */
.text-block {
  display: flex;
  align-items: center;
  gap: 60px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 50px;
  box-shadow: var(--shadow-sm);
}

.text-block-image {
  flex: 0 0 400px;
  height: 300px;
  background: linear-gradient(135deg, var(--cup-blue), var(--cup-blue-dark));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 80px;
}

.text-block-content {
  flex: 1;
}

.text-block-content h2 {
  font-size: 32px;
  margin-bottom: 20px;
}

.text-block-content p {
  font-size: 18px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 24px;
}

/* ========================================
   Comparison Table
   ======================================== */
.compare-table {
  width: 100%;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border-collapse: separate;
  border-spacing: 0;
}

.compare-table th,
.compare-table td {
  padding: 20px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.compare-table th {
  background: var(--cup-blue);
  color: white;
  font-size: 16px;
  font-weight: 600;
}

.compare-table th:first-child {
  font-size: 18px;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table tr:hover td {
  background: rgba(16, 185, 129, 0.03);
}

.compare-table .highlight {
  background: rgba(16, 185, 129, 0.08);
}

.compare-table .check {
  color: var(--loc-green);
  font-weight: 700;
  font-size: 20px;
}

.compare-table .cross {
  color: #EF4444;
  font-weight: 700;
}

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

.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  padding: 20px 24px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--loc-green);
}

.faq-question::after {
  content: '+';
  font-size: 24px;
  font-weight: 300;
  color: var(--text-light);
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 0 24px 20px;
}

.faq-answer p {
  color: var(--text-light);
  line-height: 1.7;
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
  background: linear-gradient(135deg, var(--cup-blue), var(--cup-blue-dark));
  padding: 80px 0;
  text-align: center;
  color: white;
}

.cta-section h2 {
  font-size: 36px;
  color: white;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

.cta-section .highlight-gold {
  color: var(--ship-gold);
  font-weight: 700;
}

/* ========================================
   Page Header
   ======================================== */
.page-header {
  padding: 140px 0 60px;
  text-align: center;
}

.page-header.green-bg {
  background: linear-gradient(135deg, var(--loc-green), var(--loc-green-light));
  color: white;
}

.page-header.gold-bg {
  background: linear-gradient(135deg, var(--ship-gold), var(--ship-gold-light));
  color: white;
}

.page-header.blue-bg {
  background: linear-gradient(135deg, var(--cup-blue), var(--cup-blue-dark));
  color: white;
}

.page-header h1 {
  font-size: 42px;
  margin-bottom: 16px;
}

.page-header.green-bg h1,
.page-header.gold-bg h1,
.page-header.blue-bg h1 {
  color: white;
}

.page-header p {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   Shipping Info Box
   ======================================== */
.shipping-box {
  background: var(--bg-white);
  border: 2px dashed var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 700px;
  margin: 0 auto;
}

.shipping-box-title {
  font-size: 24px;
  text-align: center;
  margin-bottom: 30px;
  color: var(--text-dark);
}

.shipping-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-light);
}

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

.shipping-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.1);
  color: var(--ship-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.shipping-text h4 {
  font-size: 18px;
  margin-bottom: 4px;
}

.shipping-text p {
  color: var(--text-light);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: linear-gradient(135deg, var(--cup-blue), var(--cup-blue-dark));
  color: white;
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer h3 {
  font-size: 20px;
  color: white;
  margin-bottom: 20px;
}

.footer p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 992px) {
  .hero-title {
    font-size: 36px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .text-block {
    flex-direction: column;
    text-align: center;
  }
  
  .text-block-image {
    flex: 0 0 auto;
    width: 100%;
    max-width: 400px;
    margin: 0 auto 30px;
  }
  
  .asymmetric-card:first-child,
  .asymmetric-card:last-child {
    width: 100%;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 20px;
    gap: 0;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-links li {
    width: 100%;
  }
  
  .nav-links a {
    display: block;
    padding: 15px 0;
    text-align: center;
    border-bottom: 1px solid var(--border-light);
  }
  
  .nav-cta {
    display: block;
    margin: 15px auto 0;
    text-align: center;
    width: fit-content;
  }
  
  .hero {
    padding: 120px 0 60px;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .page-header {
    padding: 120px 0 40px;
  }
  
  .page-header h1 {
    font-size: 28px;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .compare-table {
    font-size: 14px;
  }
  
  .compare-table th,
  .compare-table td {
    padding: 12px 16px;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 15px;
  }
}