* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Helvetica Neue', sans-serif;
  background: #f7f8fa;
  color: #333;
}
.page {
  padding-bottom: 60px;
  min-height: 100vh;
}
.page-header {
  background: #4caf50;
  color: #fff;
  padding: 16px;
  text-align: center;
  font-size: 18px;
  font-weight: bold;
}
.card {
  background: #fff;
  margin: 12px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.card-body {
  padding: 12px 16px;
}
.card-title {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 6px;
}
.card-desc {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}
.hero {
  background: linear-gradient(135deg, #4caf50, #8bc34a);
  color: #fff;
  padding: 40px 20px;
  text-align: center;
}
.hero h1 { font-size: 28px; margin-bottom: 8px; }
.hero p { font-size: 15px; opacity: 0.9; }
.section-title {
  padding: 16px 12px 8px;
  font-size: 18px;
  font-weight: bold;
  color: #333;
}
.contact-btn {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: #4caf50;
  color: #fff;
  padding: 12px 40px;
  border-radius: 24px;
  font-size: 16px;
  border: none;
  box-shadow: 0 4px 12px rgba(76,175,80,0.4);
  z-index: 99;
}
.loading {
  text-align: center;
  padding: 40px;
  color: #999;
}