body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-image: url('/static/images/hotel_landing_pic.png');
    background-size: contain;  /* 修改为contain，确保图片完整显示 */
    background-position: center;
    background-repeat: no-repeat;  /* 防止图片重复 */
    background-attachment: fixed;
    background-color: #f8f9fa;  /* 设置一个浅色背景，图片未覆盖区域显示此颜色 */
}

nav {
    background-color: #333;
    overflow: hidden;
    opacity: 0.9;
}

nav a {
    float: left;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

nav a:hover {
    background-color: #ddd;
    color: black;
}

.content {
    padding: 20px;
    margin: 20px auto;  /* 水平居中 */
    max-width: 1200px;  /* 设置最大宽度 */
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

/* 其他样式保持不变... */

table {
    width: 100%;
    border-collapse: collapse;
}

table, th, td {
    border: 1px solid #ddd;
    padding: 8px;
}

th {
    background-color: #f2f2f2;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

form {
    margin-bottom: 20px;
}

input, select, textarea {
    margin: 5px 0;
    padding: 8px;
    width: 100%;
    box-sizing: border-box;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 15px;
    border: none;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background-color: #45a049;
}

.error {
    color: red;
    font-weight: bold;
}

h1, h2, h3 {
    color: #333;
}