/* 全局样式 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  background: #f7f8fa;
  color: #333;
  line-height: 1.6;
}
header {
  background: linear-gradient(135deg, #2c3e50, #4a69bd);
  color: #fff;
  padding: 60px 20px;
  text-align: center;
}
header h1 { font-size: 32px; margin-bottom: 8px; }
header p { font-size: 18px; opacity: 0.9; }

section {
  max-width: 800px;
  margin: 40px auto;
  padding: 0 20px;
}
section h2 {
  font-size: 24px;
  margin-bottom: 16px;
  color: #2c3e50;
}
section p { margin-bottom: 12px; }

.service {
  background: #fff;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
.service h3 { margin-bottom: 8px; color: #4a69bd; }

footer {
  text-align: center;
  padding: 20px;
  font-size: 14px;
  color: #888;
  background: #fff;
  border-top: 1px solid #e5e5e5;
}

@media (max-width: 600px) {
  header { padding: 40px 20px; }
  header h1 { font-size: 26px; }
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  margin: 8px;
  border-radius: 4px;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.3s ease;
}
.btn.primary {
  background: #88B5AE;
  color: #fff;
}
.btn.secondary {
  background: transparent;
  color: #88B5AE;
  border: 1px solid #88B5AE;
}