/* 演示横幅 */
.demo-banner {
  background: linear-gradient(90deg, #ff6b6b 0%, #ff8e72 100%);
  color: white;
  padding: 14px 20px;
  text-align: center;
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
  animation: demo-pulse 2s ease-in-out infinite;
}

.demo-icon {
  font-size: 20px;
  animation: demo-bounce 1s ease-in-out infinite;
}

.demo-text {
  letter-spacing: 1px;
}

@keyframes demo-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.9;
  }
}

@keyframes demo-bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-3px);
  }
}

.page {
  min-height: 100vh;
  background: linear-gradient(180deg, #dafdf9 0%, #ecfdf5 100%);
  padding-bottom: 80px;
}

/* 顶部 Hero 区域 */
.hero-section {
  padding: 40px 20px;
  text-align: center;
  color: #000000;
  margin-bottom: 35px;
  background: linear-gradient(180deg, #dafdf9 0%, #ecfdf5 100%);
  border-radius: 0 0 30px 30px;
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.hero-title {
  font-size: 36px;
  font-weight: 900;
  margin-bottom: 12px;
  letter-spacing: 2px;
  color: #000000;
}

.hero-subtitle {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 15px;
  color: #000000;
}

.hero-desc {
  font-size: 15px;
  line-height: 1.8;
  color: #000000;
  opacity: 0.9;
}

/* 服务容器 */
.services-container {
  padding: 0 15px;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: 18px;
  font-weight: 800;
  color: #000000;
  margin-bottom: 20px;
  padding: 0 5px;
  position: relative;
  padding-left: 15px;
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 20px;
  background: linear-gradient(180deg, #dafdf9 0%, #ecfdf5 100%);
  border-radius: 2px;
}

/* 服务卡片 */
.service-card {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 18px 16px;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  margin-bottom: 12px;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border-left: 4px solid transparent;
}

.service-card:active {
  transform: scale(0.98);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.service-card.sms-card {
  border-left-color: #ec4899;
}

.service-card.call-card {
  border-left-color: #06b6d4;
}

.service-card.human-card {
  border-left-color: #f59e0b;
}

.card-badge {
  font-size: 32px;
  min-width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  border-radius: 12px;
  flex-shrink: 0;
}

.card-body {
  flex: 1;
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: #000000;
  margin-bottom: 5px;
}

.card-desc {
  font-size: 14px;
  color: #000000;
  margin-bottom: 8px;
  line-height: 1.6;
}

.card-features {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.feature-tag {
  font-size: 12px;
  padding: 4px 8px;
  background: #f0f4ff;
  border-radius: 6px;
  color: #667eea;
  font-weight: 500;
}

.card-arrow {
  font-size: 16px;
  color: #d1d5db;
  align-self: center;
  margin-left: 8px;
  transition: all 0.3s;
}

.service-card:active .card-arrow {
  color: #667eea;
}

/* 优势区域 */
.advantages-section {
  padding: 30px 15px;
  margin-bottom: 30px;
  background: #ffffff;
  border-radius: 20px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.advantage-item {
  padding: 18px 12px;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  text-align: center;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.advantage-item:active {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.advantage-icon {
  font-size: 28px;
  margin-bottom: 8px;
}

.advantage-title {
  font-size: 14px;
  font-weight: 700;
  color: #000000;
  margin-bottom: 4px;
}

.advantage-desc {
  font-size: 12px;
  color: #000000;
  line-height: 1.5;
}

/* 底部导航 */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-around;
  background: #ffffff;
  border-top: 1px solid #e5e7eb;
  box-shadow: 0 -2px 6px rgba(0, 0, 0, 0.04);
  z-index: 100;
  height: 55px;
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.nav-item:active {
  background: #f9fafb;
}

.nav-icon {
  font-size: 20px;
  margin-bottom: 2px;
}

.nav-label {
  font-size: 11px;
  color: #000000;
  transition: color 0.3s;
}

.nav-item.active .nav-label {
  color: #06b6d4;
  font-weight: 600;
}