body {
  background-color: #9DE1F2;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  color: #333;
}
html, body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}
nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  justify-content: center;
  padding: 12px 0;
  z-index: 1000;
}
nav a {
  margin: 0 15px;
  padding: 12px 20px;
  background-color: #005a87;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  font-size: 18px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}
nav a:hover {
  background-color: #003d5c;
}
nav {
  display: flex;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.8);
  padding: 12px 20px;
  z-index: 1000;
  justify-content: center; 
  position: relative;
}
nav::before {
  content: "警惕詐騙！";
  color: red;
  font-weight: bold;
  font-size: 24px;
  white-space: nowrap;
  user-select: none;
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
}
nav a {
  margin: 0 14px;
  padding: 12px 20px;
  background-color: #005a87;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  font-size: 18px;
  font-weight: bold;
  transition: background-color 0.3s ease;
  display: inline-block;
}
.content {
  padding: 10px 20px 20px;
  text-align: center;
}
h1 {
  font-size: 36px;
  margin-bottom: 20px;
  color: #003d5c;
}
p {
  font-size: 18px;
  line-height: 1.6;
}
iframe {
  margin-top: 10px;
  border: none;
  width: 100%;
  max-width: 1200px;
  height: 700px;
}
.subpages {
  margin-top: 20px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.subpages a {
  margin: 5px;
  padding: 12px 20px;
  background: white;
  color: #333;
  text-decoration: none;
  border-radius: 5px;
  font-size: 16px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}
.subpages a:hover {
  background-color: #ffd28a;
}
footer {
  text-align: center;
  padding: 20px 0;
  background-color: rgba(0, 0, 0, 0.05);
  font-size: 14px;
  color: #555;
  margin-top: 40px;
}
.page-title {
  text-align: left;
  font-size: 18px;
  margin-bottom: 20px;
  color: #003d5c;
}