/* ==================== 官网导航栏 ==================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(180deg, #dafdf9 0%, #ecfdf5 100%);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: 0 20px;
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 24px;
  font-weight: 700;
  color: #000000;
  cursor: pointer;
  text-decoration: none;
}

.logo-icon {
  font-size: 28px;
}

.logo-text {
  background: #000000;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 40px;
  flex: 1;
  margin-left: 60px;
}

.nav-menu a {
  color: #000000;
  font-weight: 500;
  transition: all 0.3s ease;
  text-decoration: none;
  opacity: 0.9;
}

.nav-menu a:hover {
  opacity: 1;
  transform: translateY(-2px);
}

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

.nav-cta .btn-primary {
  background: linear-gradient(135deg, #ffd89b 0%, #ff6b6b 100%);
  color: #000000 !important;
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.nav-cta .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

/* ==================== Hero 区域 ==================== */
.hero {
  background: linear-gradient(180deg, #dafdf9 0%, #ecfdf5 100%);
  color: #000000;
  padding: 100px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 80px;
  min-height: 700px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  flex: 1;
  max-width: 650px;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
  display: inline-block;
  background: linear-gradient(135deg, #ff6b6b 0%, #ff8e72 100%);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.2);
}

.hero-title {
  font-size: 64px;
  font-weight: 900;
  margin-bottom: 24px;
  line-height: 1.15;
  background: linear-gradient(135deg, #000000 0%, #333333 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 28px;
  color: #000000;
  line-height: 1.3;
  letter-spacing: 0.5px;
}

.hero-description {
  font-size: 17px;
  line-height: 1.9;
  margin-bottom: 50px;
  color: #333333;
  font-weight: 500;
}

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

.btn {
  display: inline-block;
  text-decoration: none;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  text-align: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  text-decoration: none;
}

.btn-large {
  height: 52px;
  padding: 0 48px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  line-height: normal;
}

.btn-large:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white !important;
}

.btn-secondary {
  background: white;
  color: #000000 !important;
  border: 2px solid #000000;
  box-sizing: border-box;
}

/* Hero 卡片 */
.hero-visual {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  z-index: 1;
  animation: fadeInRight 0.8s ease-out 0.2s both;
}

.hero-card {
  background: white;
  backdrop-filter: blur(20px);
  border: 2px solid rgba(102, 126, 234, 0.1);
  border-radius: 16px;
  padding: 32px;
  color: #000000;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.08);
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.3) 50%, transparent 100%);
  transition: left 0.6s ease;
}

.hero-card:hover::before {
  left: 100%;
}

.hero-card:hover {
  background: white;
  transform: translateY(-8px);
  border-color: rgba(102, 126, 234, 0.2);
  box-shadow: 0 16px 40px rgba(102, 126, 234, 0.15);
}

.card-top {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.card-content {
  font-size: 15px;
  line-height: 1.7;
  color: #333333;
  font-weight: 500;
}

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

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ==================== 功能区 ==================== */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 15px;
  color: #000000;
}

.section-header p {
  font-size: 18px;
  color: #000000;
  line-height: 1.6;
}

.features {
  background: #f9fafb;
  padding: 80px 40px;
}

.features-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.feature-card {
  background: white;
  border-radius: 12px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
  border: 1px solid #e5e7eb;
}

.feature-card:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  transform: translateY(-8px);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
  display: block;
}

.feature-title {
  font-size: 24px;
  font-weight: 700;
  color: #000000;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 14px;
  color: #667eea;
  font-weight: 600;
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
  text-align: left;
  margin-bottom: 20px;
}

.feature-list li {
  padding: 8px 0;
  color: #000000;
  font-size: 14px;
  line-height: 1.6;
}

.feature-note {
  font-size: 13px;
  color: #9ca3af;
  font-style: italic;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #e5e7eb;
}

/* ==================== 优势区 ==================== */
.advantages {
  padding: 80px 40px;
  background: white;
}

/* ==================== 工作流程 ==================== */
.workflow {
  background: linear-gradient(180deg, #dafdf9 0%, #ecfdf5 100%);
  color: #000000;
  padding: 80px 40px;
}

.workflow .section-header h2,
.workflow .section-header p {
  color: #000000;
}

.workflow-steps {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.step {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 30px;
  flex: 0 1 280px;
  text-align: center;
  transition: all 0.3s ease;
}

.step:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-5px);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #ffd89b 0%, #ff6b6b 100%);
  border-radius: 50%;
  font-size: 24px;
  font-weight: 700;
  color: #000000;
  margin: 0 auto 20px;
}

.step-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #000000;
}

.step-content p {
  font-size: 14px;
  line-height: 1.6;
  opacity: 0.95;
  color: #000000;
}

.step-arrow {
  font-size: 24px;
  opacity: 0.6;
  display: none;
}

@media (min-width: 768px) {
  .step-arrow {
    display: block;
  }
}

/* ==================== 应用场景 ==================== */
.scenarios {
  padding: 80px 40px;
  background: #f9fafb;
}

.scenarios-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.scenario-item {
  background: white;
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
  border-left: 4px solid #667eea;
}

.scenario-item:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  transform: translateY(-8px);
}

.scenario-icon {
  font-size: 44px;
  margin-bottom: 15px;
  display: block;
}

.scenario-item h3 {
  font-size: 18px;
  font-weight: 700;
  color: #000000;
  margin-bottom: 10px;
}

.scenario-item p {
  color: #000000;
  font-size: 14px;
  line-height: 1.6;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
  .navbar {
    padding: 0 15px;
  }

  .nav-container {
    height: 60px;
  }

  .nav-menu {
    display: none;
  }

  .nav-logo {
    font-size: 20px;
  }

  .logo-icon {
    font-size: 24px;
  }

  .hero {
    flex-direction: column;
    padding: 60px 20px;
    min-height: auto;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 20px;
  }

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

  .section-header h2 {
    font-size: 32px;
  }

  .features,
  .advantages,
  .scenarios,
  .about,
  .cta-section {
    padding: 60px 20px;
  }

  .feature-card,
  .scenario-item {
    padding: 25px 20px;
  }

  .workflow-steps {
    gap: 15px;
  }

  .step {
    padding: 20px;
    flex: 0 1 100%;
  }

  .hero-visual {
    width: 100%;
  }

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

  .about-content {
    gap: 30px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .section-header h2 {
    font-size: 24px;
  }

  .btn-large {
    padding: 12px 24px;
    font-size: 14px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .footer-content {
    gap: 25px;
  }
}

/* ==================== 页脚备案号 ==================== */
.footer-beian {
  background: linear-gradient(180deg, #dafdf9 0%, #ecfdf5 100%);
  text-align: center;
  padding: 30px 20px;
  margin-top: auto;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.footer-beian-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-beian-content p {
  font-size: 16px;
  color: #000000;
  opacity: 0.6;
  margin: 0;
}

.footer-beian a {
  font-size: 16px;
  color: #000000;
  text-decoration: none;
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

.footer-beian a:hover {
  opacity: 0.8;
}