/* 通用样式 */
* {
    box-sizing: border-box;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

body {
    background-color: #f4f4f9;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 400px;
    background: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h2 {
    color: #333;
    text-align: center;
    margin-bottom: 20px;
}

form {
    display: flex;
    flex-direction: column;
}

input[type="text"],
input[type="password"] {
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

button {
    background-color: #28a745;
    color: #fff;
    border: none;
    padding: 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #218838;
}

a {
    display: block;
    text-align: center;
    color: #007bff;
    margin-top: 15px;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #0056b3;
}

/* 表单与列表 */
ul {
    list-style-type: none;
    padding: 0;
}

li {
    margin: 10px 0;
    display: flex;
    justify-content: space-between;
}

.delete-link {
    color: #dc3545;
    text-decoration: none;
    font-size: 14px;
}

.delete-link:hover {
    color: #c82333;
}