/* WPS风格静态网站 - 共享样式 */

:root {
  --primary: #2855D1;
  --primary-dark: #1E40AF;
  --secondary: #4285F4;
  --accent: #FF6B35;
  --bg: #F8FAFE;
  --surface: #FFFFFF;
  --text-primary: #1A1A2E;
  --text-secondary: #666666;
  --border: #E5E7EB;
  --shadow: rgba(40, 85, 209, 0.1);
  --shadow-lg: rgba(40, 85, 209, 0.15);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
  color: var(--text-primary);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s;
}

ul {
  list-style: none;
}

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

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s;
}

.navbar.scrolled {
  box-shadow: 0 2px 20px var(--shadow);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}

.nav-logo svg {
  width: 36px;
  height: 36px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-links a {
  font-size: 15px;
  color: var(--text-primary);
  position: relative;
  padding: 5px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s;
}

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

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

.nav-buttons {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.3s;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}

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

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

.btn-accent:hover {
  background: #E55A2B;
  transform: translateY(-2px);
}

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

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s;
}

/* Hero Section */
.hero {
  padding: 160px 0 100px;
  background: linear-gradient(135deg, #EBF2FF 0%, #F8FAFE 50%, #FFF5F0 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(40, 85, 209, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-text h1 {
  font-size: 52px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 30px;
  line-height: 1.8;
}

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

.hero-image {
  position: relative;
}

.hero-image .mockup {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 20px 60px var(--shadow-lg);
}

/* Section Styles */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-header p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--surface);
  padding: 40px 30px;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 4px 20px var(--shadow);
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px var(--shadow-lg);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 32px;
  height: 32px;
  color: white;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Products Section */
.products-section {
  background: var(--surface);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.product-card {
  background: var(--bg);
  border-radius: 16px;
  padding: 30px;
  text-align: center;
  transition: all 0.3s;
  border: 1px solid var(--border);
}

.product-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px var(--shadow);
}

.product-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

.product-card:nth-child(1) .product-icon { background: linear-gradient(135deg, #FF6B35, #FF8F6B); }
.product-card:nth-child(2) .product-icon { background: linear-gradient(135deg, #2855D1, #4285F4); }
.product-card:nth-child(3) .product-icon { background: linear-gradient(135deg, #10B981, #34D399); }
.product-card:nth-child(4) .product-icon { background: linear-gradient(135deg, #8B5CF6, #A78BFA); }

.product-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.product-card p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.product-link {
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
}

.product-link:hover {
  text-decoration: underline;
}

/* Stats Section */
.stats-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 80px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item h3 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 8px;
}

.stat-item p {
  font-size: 16px;
  opacity: 0.9;
}

/* Download Section */
.download-section {
  background: var(--bg);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.download-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: 0 4px 20px var(--shadow);
  transition: all 0.3s;
}

.download-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px var(--shadow-lg);
}

.download-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}

.download-card:nth-child(1) .download-icon { background: #1A73E8; }
.download-card:nth-child(2) .download-icon { background: #333333; }
.download-card:nth-child(3) .download-icon { background: #0F9D58; }

.download-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.download-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.download-btn {
  width: 100%;
}

/* Footer */
.footer {
  background: #1A1A2E;
  color: white;
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  margin-bottom: 20px;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.social-links a:hover {
  background: var(--primary);
}

.footer-column h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-column ul li {
  margin-bottom: 12px;
}

.footer-column ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}

.footer-column ul li a:hover {
  color: var(--secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}

/* Page Header */
.page-header {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, #EBF2FF 0%, #F8FAFE 100%);
  text-align: center;
}

.page-header h1 {
  font-size: 42px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.page-header p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Product Detail Page */
.product-detail {
  padding: 80px 0;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.product-detail:nth-child(even) .product-detail-grid {
  direction: rtl;
}

.product-detail:nth-child(even) .product-detail-grid > * {
  direction: ltr;
}

.product-detail-info h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.product-detail-info p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 30px;
  line-height: 1.8;
}

.product-features-list {
  margin-bottom: 30px;
}

.product-features-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 15px;
}

.product-features-list li svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
}

.product-detail-image {
  background: linear-gradient(135deg, #EBF2FF, #F8FAFE);
  border-radius: 24px;
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-detail-image .mockup {
  width: 100%;
  max-width: 400px;
  border-radius: 12px;
}

/* Support Page */
.support-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.support-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 40px;
  display: flex;
  gap: 24px;
  box-shadow: 0 4px 20px var(--shadow);
  transition: all 0.3s;
}

.support-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px var(--shadow-lg);
}

.support-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.support-icon svg {
  width: 28px;
  height: 28px;
  color: white;
}

.support-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.support-content p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.support-link {
  color: var(--primary);
  font-weight: 500;
  font-size: 14px;
}

/* About Page */
.about-intro {
  padding: 80px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-content h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 20px;
}

.about-content p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-image {
  background: linear-gradient(135deg, #EBF2FF, #F8FAFE);
  border-radius: 24px;
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Timeline */
.timeline-section {
  background: var(--surface);
  padding: 80px 0;
}

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

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

.timeline-item {
  position: relative;
  margin-bottom: 50px;
  display: flex;
}

.timeline-item:nth-child(odd) {
  justify-content: flex-start;
  padding-right: calc(50% + 30px);
}

.timeline-item:nth-child(even) {
  justify-content: flex-end;
  padding-left: calc(50% + 30px);
}

.timeline-dot {
  position: absolute;
  left: 50%;
  top: 0;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  transform: translateX(-50%);
  border: 3px solid white;
  box-shadow: 0 0 0 3px var(--primary);
}

.timeline-content {
  background: var(--bg);
  padding: 24px;
  border-radius: 12px;
}

.timeline-content h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-text h1 {
    font-size: 40px;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .features-grid,
  .products-grid,
  .download-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .product-detail-grid,
  .about-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .product-detail:nth-child(even) .product-detail-grid {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-buttons {
    display: none;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    padding: 20px;
    gap: 20px;
    box-shadow: 0 10px 30px var(--shadow);
  }
  
  .hero {
    padding: 120px 0 60px;
  }
  
  .hero-text h1 {
    font-size: 32px;
  }
  
  .section-header h2 {
    font-size: 28px;
  }
  
  .features-grid,
  .products-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }
  
  .support-cards {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand h3 {
    justify-content: center;
  }
  
  .social-links {
    justify-content: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    padding-left: 50px;
    padding-right: 0;
    justify-content: flex-start;
  }
  
  .timeline-dot {
    left: 20px;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

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

/* Mobile Menu Styles */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: white;
  padding: 20px;
  box-shadow: 0 10px 30px var(--shadow);
  z-index: 999;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 15px 0;
  font-size: 16px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu .btn {
  width: 100%;
  margin-top: 10px;
}