html,
header {
    background-color: white;
    width: 100%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    margin: 0%;
}
.logo img{
    width:200px
}
.catalog {
    margin:0;
    display: flex;
    gap: 24px;
    list-style: none;
    padding: 12px 24px;
    background-color: #f8f9fa;
    border-bottom: 1px solid #ddd;
  }
  
.catalog li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 6px;
    transition: background-color 0.3s, color 0.3s;
}

.catalog li a:hover {
    background-color: #007bff;
    color: white;
}
  
body {
    margin: 0;
    width: 100%;
    height: 100%;
}

.head {
    width: 100%;
    display: flex;
    justify-content: space-between; /* 左右对齐 */
    align-items: center; /* 垂直居中 */
}

.other {
    display: flex;
    margin-left: auto; /* 将 About 推到右侧 */
}


.about {
    display: flex;
    align-items: center;
}

.snoopy {
    position: absolute; /* 修复 position 的值 */
    width: 76px;
    top: 18px;
    right: 170px;
    margin-right: 8px; /* 修复 margin 的值 */
}