header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            padding: 20px;
            background-color: #333;
            z-index: 1000;
        }
        
        header .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1400px;
            margin: 0 auto;
        }
        
        h3, h4 {
            font-weight: 800;
        }
        li{
            list-style-type: none;
        }

        .navbar a {
            color: rgb(255, 255, 255);
            text-decoration: none;
            transition: 1s ease;
        }
        
        .navbar a:hover {
            color: rgb(0, 0, 0);
        }
        
        .container {
            text-align: center;
            padding-top: 110px;
            width: 100%; /* 固定寬度 */
            height: 100vh; /* 固定高度 */
            background-image: url('page11.gif');
            background-position: center;
            background-repeat: repeat;
            background-size: cover;
        }
        
        #considerationList {
            margin-bottom: 20px;
        }
        
        .button {
            text-align: center;
        }
        
        .navbar .menu-links {
            list-style-type: none;
            display: flex;
            gap: 40px;
        }
        
        .to-main-page {
            width: 120px;
            height: 50px;
            border-radius: 18px;
            cursor: pointer;
            border-style: solid;
            border-color: rgb(19, 25, 215);
            border-width: 1px;
            background-color: rgb(39, 187, 237);
            font-weight: 800;
        }