.container {
  display: flex;
  justify-content: center;  /* 默认所有内容居中 */
  position: relative;
}

.left {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

.logo {
      position: absolute;
      left: 10%;
      top:11%;
      transform: translateY(-50%);
      height: 100px;
      box-shadow: 0 4px 8px rgba(255, 255, 255, 0.6);
    }

header {
      background-color: #003366;
      color: white;
      text-align: center;
      padding: 2rem 1rem;
      font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
    }
header h1 {
      margin: 0;
      font-size: 2rem;
    }
header p {
      margin-top: 0.5rem;
      font-size: 1rem;
    }
.lang-buttons {
      margin-top: 1rem;
    }
.lang-buttons button {
      margin: 0 5px;
      padding: 0.5rem 1rem;
      cursor: pointer;
      border: none;
      background-color: white;
      color: #003366;
      border-radius: 4px;
      font-weight: bold;
      font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
      
    }
      .lang-buttons :hover {
      background-color: #c1c6ca;  /* 鼠标悬停时变为深蓝色 */
     }
nav { 
        background: #eee; 
        padding: 10px; 
        text-align: center;
 }       
nav a { 
        margin: 0 10px; 
        text-decoration: none; 
        font-family: 'Bebas Neue', sans-serif;
        letter-spacing: 1px;
        font-weight: normal;
        color: #222;
   
}

section {
      
      display: none;
}
section.active {
      display: block;
}

nav a:hover {
  text-shadow: 0 0 5px #00f0ff, 0 0 10px #00f0ff;
  transition: all 0.3s ease;
  font-family: 'Bebas Neue', sans-serif;
  transform: scale(1.05);
}