a {
      display: inline-block;  /* 使链接成为内联块元素 */
      text-decoration: none;  /* 去掉下划线 */
      color: inherit;         /* 继承父元素的颜色 */
    }

    .logo-img {
      vertical-align: middle;  /* 使图片垂直居中对齐 */
    }
        .navbar {
            display: flex;
            justify-content: left;
            background-color: #001F45;
            padding: 10px 0;
        }

    .navbar a {
        color: white;
        padding: 10px 20px;
        text-decoration: none;
        text-align: center;
        font-size: 16px;
        position: relative;
    }
    .navbar a:hover {
        background-color: #003366;
    }
    .dropdown {
        position: relative;
        display: inline-block;
    }
    .dropdown-content {
        display: none;
        position: absolute;
        background-color: #EEEECC;
        min-width: 160px;
        box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
        z-index: 1;
    }
    .dropdown-content a {
        color: black;
        padding: 12px 16px;
        text-decoration: none;
        display: block;
        text-align: left;
    }
    .dropdown-content a:hover {
        background-color: #f1f1f1
    }
    .dropdown:hover .dropdown-content {
        display: block;
    }
.dropdown-content1 {        display: none;
        position: absolute;
        background-color: #f9f9f9;
        min-width: 160px;
        box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
        z-index: 1;}