/* 通用样式 */
body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 20px;
}

h1 {
    color: #333;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

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

th, td {
    padding: 8px;
    text-align: center;
}

th {
    background-color: #f4f4f4;
}

/* 按钮样式 */
button {
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

/* 链接按钮 */
a {
    color: #007bff;
    text-decoration: none;
    font-weight: bold;
}

a:hover {
    color: #0056b3;
}

/* 遮罩层和弹窗样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: white;
    padding: 20px;
    border-radius: 5px;
    width: 700px;
    text-align: left;
    display: flex;
    justify-content: space-between;
    position: relative;
}

.close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 20px;
    cursor: pointer;
}

/* 表单样式 */
.form-column {
    width: 48%;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: inline-block;
    width: 120px;
}

.form-group input, .form-group select {
    width: 200px;
    padding: 5px;
}

/* 使按钮靠中对齐 */
.form-submit {
    text-align: center;
    margin-top: 20px;
}

/* 页面背景和容器 */
.container {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}